Mining Equipment and Electromechanics. N. 1-2016

A. Yu. Zaharov, Professor, e-mail: auzaharov@rambler.ru, D. A. Shiryamov, Postgraduate Student, e-mail: shiryamov@list.ru, Kuzbass State Technical University after T. F. Gorbachev, Kemerovo, Russia

The Definition of a Critical Value of the Resistance of Rotation of Belt Conveyor Idlers

Considers the question of determining the residual service life of belt conveyor idlers. Technical condition of the idler proposed to estimate in accordance with value of the maximum allowable resistance which precedes stoppage of rotation. This approach allows to predicting the residual life of the roller with respect to the conditions and modes of operation of the conveyor. In the article is described the technique of determining the critical resistance to rotation of the idlers according to the degree of filling of the cross-sectional area of the belt, idler location and condition surfaces of idlers and moving belt. For calculation was experimentally determined a coefficient of friction of the surfaces of idler and moving conveyor belt in dry and wet contact.
Keywords: belt conveyor, idler, the resistance of rotation, the stoppage of rotation, coefficient of friction

P. 3—8

To the contents N. 1

I. V. Zyryanov, Deputy Director for Science, e-mail: ZyryanovIV@alrosa.ru, N. E. Kulinich, Head of the Laboratory, e-mail: KulinichNE@alrosa.ru, F. Yu. Ivanov, V. A. Kozhin, e-mail: KozhinVA@alrosa.ru, Institute "Yakutniproalmaz", Republic Sakha (Yakutia), Mirny, Russia

Assessment of Greenhouse Gas Emissions by Motor Transport of "ALROSA"

Up to 16.04.2015 there were no approved recommended practices in the Russian Federation on calculation of greenhouse gas emissions, generated in consequence of industrial activity of operations.
In connection with this and under Decree of the President of the Russian Federation of September 30, 2013 N 752 "About reduction of greenhouse gas emissions" the authors faced the task of developing methodical guidelines on calculation of greenhouse gas emissions by mobile and stationary sources of "ALROSA" PJSC, as well as performing quantitative evaluation of emissions.
Specialists of Institute "Yakutniproalmaz" developed methodical guidelines of greenhouse gas emissions calculation by mobile and stationary sources of ALROSA enterprises. Proprietary emission and oxidation factors were calculated and substantiated. Environmental analysis of "ALROSA" PJSC business activity in 2014 was carried out. Calculations of greenhouse gas emissions were performed with consideration of each stage of production process, including evaluation of inventory results uncertainty.
Keywords: "ALROSA" (PÀÎ), research work, greenhouse gases, carbon dioxide, inventory of emission sources, greenhouse gas emissions factor, carbon oxidation factor

P. 9—13

To the contents N. 1

P. S. Zhelobkov, Postgraduate Student, e-mail: ritmix47@mail.ru, Shakhty Institute (branch) of the South-Russian State Platov Polytechnic University (NPI), Shakhty, Russia

Jaw Crusher with a High Crushing Ratio

Jaw crushers with simple movement of the movable cheek are the most optimum design for maximum crushing pressure at relatively low loads on the basic units of the crusher. Thus, no vertical component of movement when movable jaw crushing material significantly increases the time of crushing work as compared with other crushers. The basis of these advantages inherent use of the operating principle of the lever. It is thanks to the advantages mentioned crusher of this type are used in the mining industry for over 150 years without significant changes in their structures.
But crusher of this type have a major drawback: the low degree of fragmentation within 4...5. The author of this article examines this disadvantage as one of the unused capacity jaw crusher and crusher offers improved design having crushing ratio of about 25.
Keywords: crushing ratio, the principle of the lever, blunt force load on the nodes of the crusher

P. 14—19

To the contents N. 1

E. K. Eshchin, Professor, e-mail: eke_kuzstu@mail.ru, Kuzbass State Technical University after T. F. Gorbachev, Kemerovo, Russia

Dynamic Calculations in Systems of Power Supply of Sites of Coal Mines

Is offered to supplement calculations of local systems of power supply of the coal mines containing the electromotive loading (for example, electric motors of driving and clearing shearer, scraper and tape conveyors and so forth), calculations of the electromagnetic processes happening in system of power supply which are characterized by changes of amplitude values of currents, the electromagnetic moments and voltages of electric motors of mining machins in time (dynamic calculations). At the same time interference of changes of a condition of each electric motor in specific modes of work (start-up, a stop, capsizing and so forth) on a condition of the others is considered. On an example dependences of change of voltages on electric motors of the driving shearer, a overloader, the shunting winch and à compressor installation, and also their currents and the electromagnetic moments at consecutive start-up in system of power supply of a field conveyor entry are shown.
Keywords: system of power supply, asynchronous electric motor, electromagnetic process, dynamic calculation, mutual influence

P. 20—24

To the contents N. 1

V. G. Gulyaev, Professor, e-mail: vggulyaev@gmail.com, K. V. Gulyaev, Senior Researcher, Donetsk National Technical University, Donetsk, Ukraine

Ways to Raise Technical Level of Pumping Plants for Hydraulic Drives of Powered Supports of Stope Complexes

The ways to raise technical level of pumping plants based on improving of dynamic characteristics, vibroactivity reduction and application of frequency control of an electric drive of high-pressure pump units are offered in the paper. It is done to raise reliability, safety and adaptability of the pumping plants to the conditions and modes of operation of the system of the hydraulic drive of the power supports being a part of the basic equipment of the stope complexes.
Keywords: pumping plant, powered support, pump unit, dynamic characteristics, resonance, vibroactivity, frequency-controlled electric drive, reliability, adaptability, efficiency

P. 25—34

To the contents N. 1

O. M. Bol'shunova, Associated Professor, e-mail: bolshunova.olga@mail.ru, National Mineral Resources University (University of Mines), Saint Petersburg, Russia

Diagnostics of Technical Condition of Asynchronous Electric Motors Technological Machines

A method of diagnosing the technical condition of electric motors technological machines by stator current was reviewed. In this work showed the possibility of using Fourier transformation and Wavelet-analysis diagnostic information in detecting defects of motor. The results of experiments are presented.
Keywords: electric motor, diagnostics, stator current, Wavelet-analysis

P. 35—37

To the contents N. 1

N. N. Gorodilov, Associate Professor, e-mail: nng47@rambler.ru, Kuzbass State Technical University after T. F. Gorbachev, Kemerovo, Russia

Research of the Causes and Ways to Reduce Dynamic Loads During Unloading Hydraulic Prop Shoring

Now often on mines Kuzbass the mechanized clearing complexes of foreign production are used. Them demands operation import spare parts. Hydraulic racks and their control systems refuse difficult conditions. Therefore it is necessary to define causes of failures of hydraulic racks and their control systems, and to find options of replacement of import accessories by domestic accessories. As a result of researches at the experimental stand it is established that when unloading a hydraulic rack its import one-stage hydraulic lock creates a water hammer in a hydraulic rack and system of its management. Parameters of throws of pressure at a water hammer are registered. The account characteristic of the one-stage hydraulic import lock is received. It passes liquids several times less, than the domestic two-level hydraulic lock. Influence of an expense on pressure amplitude size at hydroblow is defined. Thus throws of pressure exceed admissible sizes. Therefore use of import one-stage hydraulic locks, for hydraulic racks of big diameter, causes in them a water hammer. For protection against a water hammer, it is necessary to use the domestic two-level hydraulic lock. It will also allow to provide replacement of import accessories by domestic accessories.
Keywords: hydraulic rack, control system, replacement, accessories, experimental stand, one-stage, water hammer, hydraulic lock, two-level, domestic accessories, expense

P. 38—41

To the contents N. 1

A. M. Keropian, Associate Professor, e-mail: am_kerop@mail.ru, P. M. Verganskiy, Professor, D. A. Kusiev, Associate Professor, National University of Science and Technology "MISiS", M. I. Maslov, Chief Mechanic, Moscow Metrostroy, PAO, Moscow, Russia

The Dependence of the Temperature in the Contact Zone of the Locomotive Wheel Career with the Rail on the Slope of the Track

As a result of theoretical and experimental studies have established that the magnitude of the steering bias exit trench affects the temperature change in the contact wheel career locomotive with the rail and is characterized by bias temperature coefficient k_y.
The results of calculations made by the developed technique, show satisfactory agreement with the experimental results. Approximation error rate impact of mining conditions K_s.u in the range from 25 to 45 ‰ is less than ±5%.
Keywords: open cast mining, the temperature of the wheel and the rail, the guiding slope, temperature coefficient of deviation, coefficient of influence of mining conditions

P. 42—48

To the contents N. 1

Mining Equipment and Electromechanics. N. 2-2016

V. G. Gulyaev, Professor, e-mail: vggulyaev@gmail.com, N. M. Lysenko, Associate Professor, Donetsk National Technical University, I. V. Kosarev, First Deputy-Director, Dongiprouglemas, Research Centre Ugleinnovatsia, Donetsk, Ukraine

Tendencies and Problems of Creation of Pumping Plants for the Electric Drive of Powered Supports of Coal Mining Complexes

Native and foreign tendencies of creation of pumping plants aimed at provision of efficiency and safety operation of coalfaces are examined. Some problems of development of competitive pumping plants based on the application of the results of research in set vibroactivity and scientific and technical achievements in creation of high-technology equipment and automated control systems are noted.
Keywords: powered support, hydraulic drive system, pumping plant, operating characteristics, available power, vibroactivity, dynamic characteristics, reliability, adaptability, control methods, safety

P. 3—11

To the contents N. 2

B. N. Lobov, Associate Professor, e-mail: blobov@yandex.ru, Platov South-Russian State Polytechnic University (NPI), Novocherkassk, Russia

Comparing the Optimal Parameters of Electromagnets Alternating Current

Alternating current electromagnets are widely used as a driving electric apparatuses, including use in mining electrical equipment. The most common are the electromagnets with P and W-shaped yoke, and a flat, P and W-shaped anchor. When designing a new range of electric equipment optimum constructive form of an electromagnet is a very urgent task.
The basic parameters for optimum weight and power consumption of the AC electromagnets 4 constructs. When designing a predetermined static thrust characteristics W-shaped electromagnets are in the 12...30 % less weight value and 5...7 % less power values than the electromagnets are U-shaped type. It is noted that a flat armature electromagnets have the worse performance than the electromagnets with the P and W-shaped anchors.
The dependences of weight, power consumption to mouth curled-heating mode, aspect ratio of electromagnets armor, P- and W-shaped type of magnetic induction in the gap, traction permissible winding temperature, and other parameters. These dependencies are recommended at the stage of technical and conceptual design, as well as for the selection of the initial values of these parameters for optimization calculations.
Keywords: mining electrical control apparatus, electromagnets, AC, traction performance, weight, power consumption, optimal

P. 12—15

To the contents N. 2

N. A. Solovieva, Head of Laboratory, A. I. Krasheninnikov, Leading Research Associate, I. V. Zyryanov, Deputy Director for Science, e-mail: ZyryanovIV@alrosa.ru, Institute "Yakutniproalmaz", A. V. Rybnikov, Chief Power Engineer, ALROSA, PJSC, Republic Sakha (Yakutia), Mirny, Russia

About Energy Savings and Energy Efficiency Improvement in "ALROSA" PJSC

The article provides brief information about power supply, structure of consumption of fuel-energy resources and their operational costs of "ALROSA" PJSC subdivisions located in Western Yakutia. Thematic priorities on energy savings and increase of energy efficiency in the Company are presented. Work assessment criterion is determined on energy savings in "ALROSA" PJSC — key indicator of energy efficiency. Assessment and analysis of this indicator change for the period of 2009—2014 were performed. Prediction calculations of energy efficiency key indicator were carried out on the basis of data about prospective plans of deposits' development.
Keywords: fuel-energy resources, energy intensity of output, energy savings, energy efficiency, key indicator of energy efficiency, energy management, program of energy savings and energy efficiency improvement

P. 16—19

To the contents N. 2

N. I. Sysoev, Professor, e-mail: SysoevNI@npi-tu.ru, Chu Kim Hung, Postgraduate Student, e-mail: hungocrus@gmail.com, Platov South-Russian State Polytechnic University (NPI), Novocherkassk, Russia

Determination of the Maximum Possible Speed Hole Drilling by Numerical Simulation

Determination of the maximum possible speed of blast-hole drilling by numerical simulation suggested to be based on the finite element method, implemented the software package ANSYS. The paper presents the algorithm, and an example of its implementation to determine the maximum feed, which consists in fixing a maximum thrust and torque, sufficient to effect removal of the chips at a given feed cutter, and maximum values of stresses in the tool holder and solder joint, sufficient to ensure the strength of the drilling tool. The value of the maximum feed for a given environment, characterized by the strength of the rock, the parameters of the drilling machine and drilling cutters strength is defined as the value corresponding to the smallest value of the limit.
Keywords: blast-hole drilling, drilling cutter, numerical simulation, finite-element method, drilling speed, strength of drilling cutter

P. 20—26

To the contents N. 2

D. A. Yungmeister, Professor, e-mail: jungmeister@yandex.ru, A. I. Isaev, Assistant, e-mail: IsaevAlexsey@gmail.com, A. E. Sabitov, Postgraduate Student, National Mineral Resources University (University of Mines), Yu. V. Sud'enkov, Research Associate, Saint-Petersburg State University, Saint-Petersburg, Russia

Experimental Studies of Process of Deterioration Cambrian Clay Executive Bodies of the Impact Type

Designs of laboratory facilities for the study of the process of destruction of Cambrian clay blow. The technique and results of experimental studies to determine the magnitude of the introduction of rock cutting tool in the Cambrian clay. The recommendations for the use of the results.
Keywords: experimental studies, impact collapse, Cambrian clay, rock-breaking tool, shock operating device

P. 26—30

To the contents N. 2

S. V. Kornilkov, Professor, Director of the Institute, e-mail: kornilkov@igduran.ru, A. V. Glebov, Deputy Director on Scientific Problems, e-mail: glebov@igduran.ru, Mining Institute of the Ural Branch of the Russian Academy of Science, A. V. Bukhmastov, Director, e-mail: mashsouz_so@mail.ru, Union of machine building enterprises of the Sverdlovsk district, NPE, Yekaterinburg, Russia

On Import Substitution and Technical and Technological Progress of Mining Plants of the Ural Federal Region Mining and Metallurgical Complex

The possibilities of import substitution in mining and metallurgical complex are shown grounding on the existing scientific and technical potential and available production capacities with employment innovative technique and up-to-date resource- and energy saving technologies, the Ural federal region being as an example.
It is displayed that for providing the output volume it is necessary to create highly-technological domestic market including both the interests of the defense industry, Rusatom. Ruscosmos and the plants producing high-precision instruments, special optics and special ceramics.
A number of activities for providing import substitution are proposed. They are: the development of legislative and economic mechanisms of metallurgical and machine building branch focus on domestic consumer, including modernization of production for improving competitiveness in domestic market; performing research and design works on the principles of preferential taxation; mandatory funding of pre-design RW and R&D works; technological regulations as well as software on development, selection and grounding progressive technologies that are based on domestic equipment employment; working out both specification-methodological and regulatory documentation for designing and mining various types of minerals' deposits with due regard for the world's advanced and domestic level of mining technologies and mining technique progress.
Keywords: mining and metallurgical complex, surface mining operations, steels and alloys, mining and transport equipment, modernization of production, consumption market

P. 31—39

To the contents N. 2

V. V. Sergeev, Professor, e-mail: w_sergeev_47@mail.ru, North Caucasian Institute of Mining and Metallurgy (State Technological University), Vladikavkaz, Russia

Classification of Cargolifting Machines and Mechanisms. Part I

The division of cargolifting machines and mechanisms providing the cargo lifting from one level to another with the possible movement in space was made. This space is restricted with the machine construction from the transport one providing the cargo movement in the unlimited space on one level (horizontal and slightly sloped conveyors, automobile, rain road, sea and river transport) resulted in the full classification of cargolifting machines and mechanisms.
Keywords: cargolifting machines and mechanisms, transport machines, movement in space, restricted with machine construction

P. 40—44

To the contents N. 2

M. M. Zabolotsky, Deputy Chief Designer, e-mail: M.Zabolockij@belaz.minsk.by, BelAZ, OAO, Zhodino, I. V. Dubonosov, Deputy Chief, Granit, RUPE, Mikashevichy, Republic of Belarus

Field Experience of Mining Dump Trucks Series BelAZ-7555 with Payload Capacity of 55...60 Metric Tons with Multiple-Disk Oil-Cooled Brakes

P. 45—47

To the contents N. 2

Mining Equipment and Electromechanics. N. 3-2016

D. A. Yungmeyster, Professor, A. I. Isaev, Assistant, e-mail: IsaevAlexsey@gmail.com, National Mineral Resources University (University of Mines), Saint Petersburg, Russia

Tunnel Complexes for the Holding Subsidiary Workings in Cambrian Clay Double Executive Body Shock

Presented layout diagram of the tunnel complex and the double impact of the executive body. Calculated and plotted the performance of the complex dual shock executive body.
Keywords: slaughtering, tunnel machines, cambrian clay, rock-breaking tool, shock operating device, performance

P. 3—6

To the contents N. 3

F. I. Karamanits, Chairman of Board, e-mail: krruda@krruda.dp.ua, Krivorozhskiy Iron ore Combine, PSJC, A. S. Gromadskiy, Professor, Head of Chair, e-mail: impulselux@yandex.ua, D. I. Kuz'menko, Assistant, e-mail: kuzmenko.dmitriy24@yandex.ua, Kryvyi Roh National University, Kryvyi Roh, Ukraine

The Creation and Study of New Crowns for Drilling the Compensation of Wells in Hard Rocks

The depth of the blasting cycle is a key indicator when conducting drilling and blasting operations. The use of a parallel cut, in contrast to the wedge, allows to increase the depth of blasting and therefore, the rate of use of borehole. A distinctive feature of these roots is the presence of non-chargeable (compensation) boreholes and wells that are drilled with special drill bits. The use of compensation boreholes and wells provide the ability increase the power of the explosion on every single hole, thus reducing the total number of drilled holes in the tunneling bottom hole and to reduce the amount of explosives, rounds of ammunition the militants, copper wires when charging the face. However, the drilling instrument for forming the compensation boreholes and wells are far from perfect. Created and tested in the industrial conditions of new designs of drill bits for the formation of the compensation wells using manual perforators UT-28 and drilling rig Boomer S1 d-DH, in which the drilling speed compensation cavity more than in 2 times above, unlike mass-produced crowns.
Keywords: drill bit, a compensation bore, blast hole, drilling speed, crown extender, strength of the breed

P. 7—13

To the contents N. 3

S. V. Korneev, Professor, V. A. Zotov, Associate Professor, V. Yu. Dobronogova, Senior Lecturer, e-mail: linercos@mail.ru, Donbas State Technical University, Alchevsk, Ukraine

Adaptive Control by Tension of Face Conveyors

Given the principles of conversion of input quantities of the adaptive automatic control system of hydraulic tensioning devices of face conveyors in defining effect, determines the need for the pressure in the hydraulic cylinders unit, which provides a minimum level of tension traction body. The control principle is selected depending on the location in the traction point of the diagram with the least tension. The input quantities are the power consumed by the drive motors, the pressure in the hydraulic cylinders and the sag of chains. Hydraulic tensioning devices allow controlling a given level of tension in the automatic mode. Adaptive control of the tension of the face conveyors traction body can increase resource chains by a factor of deterioration of joints. The functional diagram of adaptive system of automatic tension control and hydraulic diagram of the tension device with the regulator were received.
Keywords: face conveyor, chain, hydraulic tensioning device, traction body, tension, automatic control system, adaptation, defining effect, function diagram, work conditions, load

P. 14—19

To the contents N. 3

V. V. Sergeev, Professor, e-mail: vv_sergeev_47@mail.ru, North Caucasian Institute of Mining and Metallurgy (State Technological University), Vladikavkaz, Russia

Classification of Cargolfting Machines and Mechanisms. Part II

The division of cargolifting machines and mechanisms providing the cargo lifting from one level to another with the possible movement in space was made. This space is restricted with the machine construction from the transport one providing the cargo movement in the unlimited space on one level (horizontal and slightly sloped conveyors, automobile, rain road, sea and river transport) resulted in the full classification of cargolifting machines and mechanisms.
Keywords: cargolifting machines and mechanisms, transport machines, movement in space, restricted with machine construction

P. 20—26

To the contents N. 3

V. V. Buevich, Postgraduate Student, e-mail: buevich.v@bk.ru, V. V. Gabov, Professor, e-mail: gvv40@mail.ru, N. V. Babyr', Postgraduate Student, D. À. Zadkov, Associate Professor, National Mineral Resources University (University of Mines), Saint Petersburg, À. V. Stebnev, Chief Engineer, e-mail: StebnevAV@suek.ru, SUEK-Kuzbass, OJSC, Leninsk-Kuznetsky, Russia

Adaptation of Powered Roof Support Section to Improve the Mechanical Characteristics of the Hydraulic Drive of her Legs

The analysis of the mechanical characteristics of the sections of powered roof supports and control process of the resistance of their legs to the lowering of roof rocks. A method of increasing the static adaptation of the shield supports to updated rocks pressure and reduced dynamic loading of the shields and rocks of the immediate roof, resulting from time-sequential actuations of the safety valve during the formation of the regime of "equal resistance". The proposed mechanical characterization of the props of powered roof support sections function overload protection function is separated from management of rocks pressure, regulation of the resistance legs of the shield supports the lowering of roof rocks is nonpulse method, and the relocation of sections of the lining can be carried out in "without unloading" mode. The result is a reduction of the static "marking" rocks of the immediate roof, increase the adaptability of static shield supports to updated rocks pressure, thus, in the mode of management of rocks pressure are excluded dynamic effects on roof support the immediate roof. The protection of the shields overload into a separate function, that is, the safety valve is triggered only when an overload of supports and participates in the formation of the process of management of rock pressure.
Nonpulse method of regulation allows the regulated flow of the working fluid with a small pressure drop from the piston cavities of the leg cylinder in the pressure line of the hydraulic mechanized complex treatment and subsequent beneficial use.
Keywords: coal, mine, roof support, hydraulic, rock pressure, regulation, mechanical characteristics, adaptation

P. 28—34

To the contents N. 3

S. L. Serjan, Assistant, e-mail: sergei.serzhan@inbox.ru, V. I. Medvedkov, Professor, e-mail: vimedvedkov@yandex.ru, National Mineral Resources University (University of Mines), Saint Petersburg, Russia

Influence of the Depth of Immersion of Buffer with Pump Equipment on Efficiency of Mining of Minerals by a Sea Mining Complex

The generalized data about geography and depth, the properties and parameters of seabed mineral resources, such as: ferromanganese nodules, manganese crusts, deep polymetallic sulphides.
The principal configuration of the basic units of underwater complex for mining ferromagnesian nodules, providing increase of its productivity was given.
The analysis of the influence of the depth of immersion of buffer with pump equipment on efficiency of mining of mineral was made. In these design features of slurry pipeline, geodetic parameters of a field, productivity of a suction cutter, a consistence and concentration of a pulp, and its consumption and speed characteristics were considered.
The mathematical model of determination of the only possible value of relative immersion of a buffer taking into account the factors stated above was developed. The model was tested on a concrete example which is given with an illustration of graphic dependences in absolute and relative coordinates.
Keywords: underwater complex, buffer, mathematical model, nodules

P. 34—42

To the contents N. 3

M. V. Dubinin, Engineer, Research Institute of Mining Mechanics after M. M. Fedorov (Kiev Branch), Kiev, S. S. Ilyina, Senior Researcher, e-mail: sveta_il86@mail.ru, National Mining University, Dnepropetrovsk, Ukraine

Influence of Rail Guides Wear on Impact Allowance Loads from the Lifting Vessel

In article the research problem of influence of wear of rail guides on the value of allowance operational loads in system "vessel — reinforcement" is solved. It is shown that the increase in step of reinforcement leads to increase of value of tension concentration in dangerous section and to decrease in level of impact allowance loads in system.
Keywords: mine shaft, mine cage, mine skip, reinforcement of a mine shaft, rail guide, impact loads

P. 42—45

To the contents N. 3

E. I. Komarov, Professor, e-mail: e.i.komarov@rambler.ru, Moscow State University of Mechanical Engineering (MAMI), Moscow, A. S. Morohov, General Director, e-mail: morohov@intertexnika.ru, Intertehnika, GK, Ivanovo, Russia

Pilot Tests of the Excavator Gidroapparat to Offset Steep Slopes and Safe Trenches and the Pit

Accumulated in Russia manufacture experience import equipment and the positive results of industrial tests of gidroapparat provide detuning cool and safe slopes of trenches and the pit through the use of elongated boom and stick for hydraulic excavators weighing up to 1501.
Keywords: import substitution, gidroapparat, extra long boom and arm, hydraulic excavators, steep slopes and safe and the side, of the trench and career growth stocks

P. 46—48

To the contents N. 3

Mining Equipment and Electromechanics. N. 4-2016

A. A. Khoreshok, Professor, e-mail: haa.omit@kuzstu.ru, L. E. Mametyev, Professor, A. M. Tsekhin, Associate Professor, A. Yu. Borisov, Senior Lecturer, Kuzbass State Technical University after T. F. Gorbachev, Kemerovo, Russia

Formation of Loading of Reversive Crowns with the Disk Tool on Triangular Prisms

Justified options of communication patterns radial dual crowns on effectorrs of the boom-type roadheaders of selective action and examines the process of formation of loads on the disc tool in the destruction of the rock mass. The structure of stages of static loading of trihedral prisms with the attachment of the disk tool with the structural-kinematic relationships of the crowns, schemes and settings of the destruction of slaughter.
Keywords: roadheader, effector, crown, triangular prism, mount, disk tool, kinematic connection, reverse mode, face massif, efforts, moment

P. 3—10

To the contents N. 4

N. I. Sysoev, Professor, e-mail: sysoevngmo@gmail.com, Chu Kim Hung, Postgraduate Student, e-mail: hungocrus@gmail.com, Platov South-Russian State Polytechnic University (NPI), Novocherkassk, Russia

Service Simulating Test of the Functioning and Reliability of Cutters for Blast Hole Drilling to Determine the Quality Indicators

The article presents interrelationship scheme of parameters, characterizing the operational efficiency and reliability of the drilling cutter in terms of its optimal design and algorithm to determine the quality indicators of drilling cutters. Optimality criterion of minimum unit costs of blast-hole drilling for rate of the technical solutions and selection the best was suggested use. In this case, it is required to perform calculations of restrictions functions and using service simulating test of operation and reliability of cutters on the period of their life. Finite element method and corresponding software packages for calculations of the loads acting on the cutters of any complexity, and the strength of its elements were provided use. The concrete examples of determination the most important parameters were described.
Keywords: drilling cutter; operational efficiency; reliability; quality indicators; optimally criterion; service simulating test; finite element method

P. 11—16

To the contents N. 4

A. E. Sabitov, Postgraduate Student, A. I. Isaev, Assistant, D. A. Yungmeyster, Professor, e-mail: iungmeister@yandex.ru, R. Yu. Urazbakhtin, Postgraduate Student, National Mineral Resources University (University of Mines), Saint Petersburg, Russia

Justification of the Arrangement and Parameters of Drills-Strikers for the Executive Bodies of Tunneling Machines

Describes the structure of the shock executive bodies of tunnel combines, capable of working in the drills mode for carrying out excavations in the mines. Considered options for arrangements of the executive bodies of the impact type for breaking faces of complex structure. The results of experimental tests to determine the value of penetration peaks in the arrays of different rock hardness and at impact energies. It was noted that the proposed decisions replaces the manual labor, reduce time driving cycle.
Keywords: pit-face, tunnel machines, performance, executive device, hammer, perforator, striker, piston, shank

P. 17—22

To the contents N. 4

A. S. Romanovich, Director General, Niva, UPE, e-mail: info@lmzuniversal.com, Soligorsk, Republic of Belarus, A. Kalyukevich, Professor, AGH-University of Science and Technology, Krakow, Poland, S. A. Pronkevich, Lecturer, Belarusian National Technical University, Minsk, Republic of Belarus

Simulation of Potash ore Cutting Process with Tangential Pick

This paper presents the results of determining forces of cutting potassium-containing rock and energy consumed by the cutter depending on the taper angle of the cutting tool and cutting speed in the simulation of the tool invasion into the ore, and its interaction with it.
Keywords: tangential pick, potash ore, cutting force, taper angle, angular velocity of the pick, thickness of cutting, cutting energy, finite elements method

P. 23—27

To the contents N. 4

S. V. Korneev, Professor, Head of Chair, V. Yu. Dobronogova, Senior Lecturer, e-mail: linercos@mail.ru, Donbas State Technical University, Alchevsk, Ukraine

Evaluating the Effectiveness of Regulating Chain Tension of Face Conveyor by a Factor of the Wear Durability

The dependences of the efficiency criterion adaptive tension control of face conveyor from operating parameters. Hydraulic tensioning devices are one of the most effective ways to control the tension of face conveyors. Hydraulic tensioning devices allow controlling a given level of tension in the automatic mode. Adaptive control of the tension of the face conveyors traction body can increase resource chains by a factor of deterioration of joints, depending on the average value of the mass per unit length of the load and the installation angle of the conveyor at 1,2...10 times. The effectiveness of adaptive control tension objectively determined uneven filling conveyor structures along the length of the load coming from moving of the face machine, and the degree of compliance with the unregulated tension actual value of the maximum quantity of load on the conveyor.
Keywords: face conveyor, chain, wear, tension, control, criterion, work conditions, adaptive, load, installation angle

P. 28—35

To the contents N. 4

B. N. Abramovich, Professor, e-mail: babramov2bn@mail.ru, Yu. A. Sychev, Associate Professor, e-mail: sychev_yura@mail.ru, V. A. Morenov, Postgraduate Student, e-mail: morenov@spmi.ru, National Mineral Resources University (University of Mines), Saint Petersburg, Russia

Combined Energy Application for Mining Enterprises Power Supply

Necessity of mining enterprises efficient power supply appears with increase in industrial production. New sites are often located in remote regions, such as beyond the Polar circle or eastern Syberia, where no connection to the centralized power grid can be made and at the same time need in formidable amount of heat energy exists. The only solution in these conditions is autonomous power sources, like diesel power plants. In order to increase the efficiency of power units, cogeneration mode of operation is advised, along with the implementation of steam turbine driven by the heat of diesel plant flue gases. Depending on the consumer load charts generated heat is either used directly for heating purposes or is utilized in steam generation unit with low-boiling working medium. This way primary energy carrier is efficiently used at full potential thus maintaining high overall efficiency of the whole power structure. Implemented system is advised for power supply of industrial objects located in distant locations with no access to unified power grid.
Keywords: power supply, heat providing, cogeneration, binary cycle, mineral resources complex, load charts

P. 36—41

To the contents N. 4

V. N. Fashilenko, Professor, e-mail: vnf48@mail.ru, S. N. Reshetnyak, Associate Professor, e-mail: reshetniak@inbox.ru, National University of Science and Technology "MISiS", Moscow, Russia

Energy-Efficient Resonant Mode of Electromechanical Systems of Bodies Cutting Mining Machines Based on Modern Governance Structures

The mathematical model of variable frequency drive, adapted for the study of energy-efficient resonant modes of the electro-mechanical system of bodies cutting mining machine. Energy efficiency is achieved through the rational law of motion of the body of the cutting with a dynamic process of cutting with a reciprocating rotary motion trajectory of the coordinates of the velocity in the contact area of the cutting tool with the mountain. This process can be achieved by resonant modes in Electromechanical systems. It is advisable to use an external disturbing effects. When the frequency of the oscillations of the external disturbance to the natural frequency of the Electromechanical oscillation system is achieved resonant mode of operation. The management system should provide the setting to the resonant frequency and to limit the amplitude of the forced oscillations of the current and the speed of the motor. As a regulator controlled resonant mode of operation of the proposed PID controller. Analytical studies by the mathematical model allowed us to obtain the dependence of the frequencies of the Electromechanical system and the dynamic factor of the motor current (the amplitude of the current oscillation) from the parameters of the controller. Analysis of analytical dependences showed that tuning to the resonant frequency is achieved due to the differential part of the PID controller. Limiting the amplitude of forced oscillations of the current possible proportional or integral parts of the regulator.
Keywords: electro-mechanical system resonance, the dynamic factor, energy efficiency, performance, governance structure, the PID controller

P. 41—45

To the contents N. 4

L. I. Truhnov, Chief Design Engineer, e-mail: L.Truknov@belaz.minsk.by, A. S. Urbanovich, Chief of Design Office, e-mail: ant@belaz.minsk.by, "BelAZ", OJSC, D. V. Bulai, Editor, e-mail: novosti@belaz.minsk.by, newspaper "BelAZ news", Zhodino, Republic of Belarus

New Truck BelAZ-78250

P. 46—47

To the contents N. 4

Mining Equipment and Electromechanics. N. 5-2016

S. A. Shemyakin, Professor, Pacific State University, Yu. A. Gamolya, Researcher, E. A. Shishkin, Senior Lecturer, e-mail: jeshi@bk.ru, Far Eastern State Transport University, Khabarovsk, Russia

Ways to Improve the Working Equipment Bulldozers

Analyzed main disadvantages of working equipment bulldozers working on open cast mining and construction. The existing structural solutions on remedial bulldozers digging and moving rocks. Analytically performed study the possible implementation of the structural changes of the working equipment, which will lead to the greatest efficiency in the operation of the machines.
Keywords: bulldozer, working equipment, digging, rock, moving prism drawing, cut chips

P. 3—7

To the contents N. 5

A. Yu. Cheban, Senior Researcher, e-mail: chebanay@mail.ru, N. P. Khrunina, Senior Researcher, e-mail: npetx@mail.ru, Mining Institute of the far Eastern Branch of the Russian Academy of Sciences, Khabarovsk, Russia

Excavation and Screening Plant for Open-Cast Mining of Coal Deposits

In coal mining, a large number of fines, which are subjected to intense weathering during transportation and transhipment, reduce the quality and the cost of coal, worsen the ecological situation. The known construction pit mining complexes for the excavation and processing of coal. The design of excavation and sorting complex based miner, which provides separation of the rock mass on the varietal and coal fines. The system of pneumatic transport of fine fractions in special airtight silos car virtually eliminates dusting and blowing coal dust during loading and transport.
Keywords: coal quality, ecology, fine coal, briquettes, miner, dump trucks, pneumatic

P. 7—10

To the contents N. 5

N. N. Strabykin, Professor, S. Yu. Krasnoshtanov, Associate Professor, e-mail: gm_gor@istu.edu, A. N. Shevchenko, Associate Professor, National Research Irkutsk State Technical University (NR ISTU), Irkutsk, Russia

The Interaction of Drillhole Cleaning System Components Operating on Frozen Massifs in Excessively Humid Conditions with Suggested Methods for Calculating Certain Operational Parameters

A need has been identified for improvement in the cleaning of drillholes as well as the normalization of the methods for achieving this. The mechanisms and interaction patterns between auger and pneumatic systems while drilling in frozen massif ore bodies have been established. Analytical variables have been defined that establish the required productivity, the proper loading of explosives as well as the energy intensity required to effectively flush drillholes. These prevent the disruption of drill cuttings removal from the tubular opening of the drillhole and thus obstructs the thawing of the drill cuttings into a slime. The effect of various factors affecting the operation of drilling equipment operating in frozen multi-structured massifs of heightened moisture content are reviewed.
The effect of various design and technical factors influencing drill rig outputs in extreme conditions of Northern open pits is analysed. A method of calculating the optimal settings for drilling metrics with the goal of reaching maximum productivity for drilling equipment resources.
The interdependencies between required compressor productivity and operating condensed air pressures that are required for the effective removal of drill cuttings from drillholes during cleaning with consideration of unique mining-geological settings in massifs, mineralogical and granular structure, moisture content as well as rock mass temperature are identified.
A structured and functional system for the selection and maintenance of optimal modes of drillhole penetration in complex, phased massif structures is suggested.
Usage principals for auger pneumatic systems in the flushing of drill cuttings from drillholes as well as the mechanism of its element interaction and usage practicalities are examined.
The conclusions reached allow for the specification of software for control of blasthole drilling taking into consideration individual massif formation as well as the individual properties and temperature settings of ore bodies to provide a significant increase in the effectivity of drilling work in Northern open pits.
Keywords: drilling machine, pit-hole cleaning, products of destruction, phase state, granular content, specific energy consumption

P. 11—22

To the contents N. 5

A. D. Kol'ga, Professor, e-mail: kad-55@magtu.ru, A. S. Agliullin, Student, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia

Railway Transport of Mining Enterprises: Ways of Efficiency Improvement

The authors carried out analysis of rolling of wheeled vehicles from the point of view of the possible increase in the rail tractive effort and gradability.
It was found that the rail tractive effort and, respectively, the gradability of railway transport can be increased significantly due to the increase in the friction coefficient (coefficient of traction) in the contact pair "wheel—rail", when wheels are manufactured from materials having high friction coefficient working in pair with a steel rail and using pairs of wheels with independent rotation of wheels.
Keywords: prime mover, grade, transportation vehicles, rail tractive effort, friction coefficient (coefficient of traction), normal response

P. 23—28

To the contents N. 5

G. Sh. Khazanovich, Professor, e-mail: hazanovich@rambler.ru, E. Yu. Voronova, Associate Professor, e-mail: eleonora_sam_ti@mail.ru, Shakhty Institute (Branch) of the South-Russian State Platov Polytechnic University (NPI), Shakhty, Russia

The Method of Calculating Performance V-Trailer Transporting Body Composition Tunnel Complex Explosive Loading

The peculiarities of the formation of mathematical models performance wedge traction and transport authority (TTE) in the structure of the tunnel Explosive loading complex. Unlike similar ratios obtained for wedge conveyor is used in transport mode, in terms of srivanalai amount of grip loading wedge is determined based on the cross-sectional shape of the cargo in the bin. However, the performance is limited by the RM is a function of the pressure load on the supporting surface of the conveyor. The methods of calculation pressure for free-form surface of the pile in the hopper based on the hypothesis of the pendant, the construction of slip lines on prof. centuries Sokolovsky and methods used in the calculation of the storage bins. On the basis of mathematical models of forming of the wedge-type traffic TTO developed the procedure used to calculate the performance at the output of the pipeline by number of full circuit and its average value for dischargingfull volume of material from the hopper. It is shown that the use of trivonianou technology combined bottom wedge TTO provides a shorter loading and transport operations by 25...30 % compared to traditional sets of tunneling equipment.
Keywords: heading explosive loading complex, V-trailer transporting body, receiving hopper with controlled sides, a performance, a mathematical model for calculation of traffic, the pressure on the base surface of the wedge conveyor, methods of Coulomb and Sokolovsky

P. 29—36

To the contents N. 5

A. M. Krasyuk, Professor, e-mail: am.krasuk@gmail.com, P. V. Kosyh, Postgraduate Student, N. A. Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia

To the Method of Calculating the Critical Rotational Speed of the Main Ventilation Fan Rotor

The method of the rotor critical speed calculation is demonstrated. The calculations was made by the example of VO-21 fan. The design diagram of this machine consist of fan — intermediate shaft with coupling — motor. The assumption, which simplify the calculations and do not cause the noticeable error, is justified. There is shown the influence of bearing flexibility and gyroscopic moment caused with impeller the frequency of bending natural oscillations of the rotor during back and forward precession. The research was conducted with finite element method in ANSYS.
Two design diagram was developed: the one with beam elements and another with volume elements. Analysis of results show good convergence. Determination of critical speeds was conducted with Campbell diagrams, which was made for two cases — with flexible and rigid bearings. The received critical speeds was compared with calculation where gyroscopic moment and flexible of bearings are ignored. The importance of taking account of gyroscopic moment was established when the flexible of bearing is also considered, because it affect the frequency and the mode shape. It is shown that the flexible of the supports reduces the bending of the shaft. It decreases the inclination angle of the impeller relative to the line of poles, and it affects the magnitude of the gyroscopic moment.
Keywords: fan, critical speed, precession, gyroscopic moment, flexibility of bearing, equivalent load, Campbell diagram

P. 36—42

To the contents N. 5

Yu. D. Abrashkevych, Professor, e-mail: abrashkevich@voliacable.com, L. E. Pelevin, Professor, e-mail: pelevin_leonid@ukr.net, G. H. Machyshyn, Associate Professor, e-mail: ma4ishin@mail.ru, Kiev National University of Construction and Architecture, Kiev, Ukraine

Exploitation of Reinforced Abrasive Circles

Investigated the influence of the construction side of the abrasive circle reinforced its reliability and efficiency. It is found that circles with rough lateral surfaces have a number of significant advantages as compared with circles with smooth and grooved surfaces.
Keywords: abrasive grain, Hooke's law, reinforced abrasive circle, jamming, imbalance

P. 43—46

To the contents N. 5

Mining Equipment and Electromechanics. N. 6-2016

A. A. Khoreshok, Professor, L. E. Mametyev, Professor, A. M. Tsekhin, Associate Professor, A. Yu. Borisov, Senior Lecturer, e-mail: bau.asp@rambler.ru, Kuzbass State Technical University after T. F. Gorbachev, Kemerovo, Russia

The Sustain Ability of Roadheader with Two Reversible Crowns

The essence of the study design, power and operating parameters that ensure the stability of the boom-type roadheader in the destruction of a wide spectrum of rock massif tool disk on the triangular prisms. The influence of reversing the direction of rotation and move kinematically connected crowns of the effector on the loading and stability of the roadheader of selective action.
Keywords: roadheader, crown, triangular prism, disk tool, reverse mode, efforts, moments, stability

P. 3—7

To the contents N. 6

L. E. Mametyev, Professor, O. V. Lyubimov, Associate Professor, Yu. V. Drozdenko, Senior Lecturer, e-mail: duv.gmik@kuzstu.ru, Kuzbass State Technical University after T. F. Gorbacev, Kemerovo, Russia

Justification of Methods and Devices for Increasing of the Auger Tool's Efficiency

Provides information on the developments of the department of mining machines and complexes KuzSTU aimed at improving the operational reliability and service life of auger units. The main bottleneck in improving of auger tools are housing units, which are the main shortcomings — the small relative resource and low operational reliability. This is largely overcome by the use in the construction of support units with antifriction bearings filler.
Keywords: auger, auger tool, horizontal hole, efficiency, diagnostics, technical condition, vibration

P. 8—13

To the contents N. 6

E. K. Eshchin, Professor, e-mail: eke_kuzstu@mail.ru, Kuzbass State Technical University after T. F. Gorbachev, Kemerovo, Russia

Modelling and Control of Dynamic Processes of Electromechanical Systems Scraper Conveyors

Problems of improvement of a dynamic condition of scraper conveyors are considered. It is noted that one of solutions — use of opportunities of the control electric drive. For carrying out computing experiments the computer model of electromechanical system of the scraper conveyor on the basis of representation of traction body is created by set of elementary dynamic links. The model considers a possibility of change of a sign of speed of each link, stochastic nature of change of moving masses, and also nonlinear nature of change of friction force of sliding and absence of the negative (squeezing) efforts in a chain. Tool environment of modeling MatLab/Simulink. For management of a dynamic condition of electromechanical system of the conveyor options of control of the modes of start-up and the main technological mode by means of the electric drive are offered. The results of modeling showing efficiency of the offered options of control are given.
Keywords: scraper conveyor, asynchronous electric motor, electromagnetic process, dynamic calculation, mutual influence

P. 14—19

To the contents N. 6

T. F. Podporin, Associate Professor, e-mail: ptf.citm@mail.ru, Kuzbass State Technical University after T. F. Gorbachev, Kemerovo, Russia

Methods of Calculating the Longitudinal Stability of the Belt in the Mode of Steady Motion to Brake Incline Conveyor with a Complex on the Strength Characteristics of Loop Tape

The cause of loss of stability of motion in tape mode, steady motion to brake incline conveyor with a complex contour-rom tape.
A calculation method for the sustainability of the belt. The technique can be applied to a telescopic conveyors contoured tape.
Keywords: belt brake incline conveyor, complex contour tapes, motion stability, telescopic conveyor

P. 20—29

To the contents N. 6

A. Yu. Borisov, Senior Lecturer, e-mail: bau.asp@rambler.ru, A. A. Khoreshok, Professor, L. E. Mametyev, Professor, A. M. Tsekhin, Associate Professor, Kuzbass State Technical University after T. F. Gorbachev, Kemerovo, Russia

The Influence of the Shape of the Housing of the Working Body Mining Combine on the Loading Disk Tool

Substantiated and elaborated versions of the original designs of the working bodies of roadheaders and shearer with notched-wire assemblies is a triangular prism with a disk tool. Given the nature of the distribution of effort of loading at an angle of inclination of the axis of the disk tool on the triangular prism to the longitudinal axis of the working body mining combine.
Keywords: mining combine, working body, triangular prism, disk tool, rackbar, bearing, lock, reverse mode, face massif, efforts

P. 30—37

To the contents N. 6

Yu. M. Lekontsev, Associate Professor, N. A. Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, A. A. Khoreshok, Professor, e-mail: haa.omit@kuzstu.ru, S. Yu. Ushakov, Postgraduate Student, M. A. Tyulenev, Associate Professor, Kuzbass State Technical University after T. F. Gorbachev, Kemerovo, Russia

Theoretical and Experimental Research of the Balanced Sealer's Valve Operation

The substantiation of the device design choice for a balanced dock is presented in this paper. The laboratory study designs synchronizers for collaboration sealing devices was done. The upgraded stand design for dock shelter full-scale tests is presented. The studies established rational parameters sealers valves are performed. The results of laboratory tests of operating modes of the balanced dock with two different designs of synchronizing devices are presented. Results of laboratory tests of the valve synchronizer KS-1 are given and his rational parameters are justified. It was found that the presented scheme of the locking unit in the KS-1 allows to equalize the velocity pressure, and improved valve design reduces vibration at any flow rate.
Keywords: liquid, pipeline, velocity head, sealer, packer, valve synchronizer vibration

P. 38—43

To the contents N. 6

E. V. Preis, Associate Professor, V. V. Kuznetsov, Associate Professor, e-mail: kvv.gmk@rambler.ru, Kuzbass State Technikal University after T. F. Gorbachev, Kemerovo, Russia

Experimental Study on the Influence on the Angle of Inclination of the Bedding Planes on the Grade and Strength Characteristics of the Coal

Based on laboratory studies conducted at the department of "Mining machines and systems" patterns of influence tilt angle of the planes of weakening coal grade were obtained. We were prepared and analyzed of coal strength characteristics of the array according to the angle of the bedding. The data allow us to determine the rational geometry of the impact of the working tool on the coal seam in the specific geological conditions.
Keywords: the plane of the strata, the angle of inclination, plane of weakness, varietal composition, particle size distribution, load, classes of coal, the destruction of the Executive body

P. 44—47

To the contents N. 6

Mining Equipment and Electromechanics. N. 7-2016

V. G. Merzlyakov, Professor, e-mail: mgou-vgm@mail.ru, I. V. Derevyashkin, Professor, e-mail: robotron-04@mail.ru, Moscow State Engineering University, Moscow, Russia

Creation of Means of Protection Against Dust and Explosions for the Executive Bodies of Excavation and Tunnelling Machines in Coal Mines

Safety explosion tool work and minimal dust pollution in the process of fracture of coal or rock by high-pressure irrigation or hydro-mechanical destruction of rocks by filing jets of water directly into the zone of contact of the tool with destructible array. Developed engineering methods of calculation of design parameters jet-forming devices and of dynamic and structural characteristics of high-speed jets of water. Created effective small jet-forming device and the nozzle, providing a compact water jets directly into the zone of contact of the tool with destructible array, where the friction of the tool about the breed forms a high temperature hot trail, which is one of the main sources of explosions of gas and dust when coal-mining and tunneling machines.
Keywords: coal-mining and tunneling machines, the ignition of methane and coal dust, high-pressure irrigation, hydro mechanical method of destruction of coal and rocks, a small jet-forming device and the nozzle, the rational parameters

P. 3—7

To the contents N. 7

A. L. Vasil'ev, Postgraduate Student, e-mail: vasilyevgtm@bk.ru, V. I. Alexandrov, Professor, National Mineral Resources University (University of Mines), Saint Petersburg, Russia

Backfill Operations in the Potash Mines

Presents some features of the Verkhnekamskoe potash field and problems which occur in the resource recovery. For example, the deformation of the earth's surface and the possibility of water ingress into the mine workings. The solution of this problem is the underground backfill. A review of applicable technologies of mechanical backfill and hydraulic backfill is given and also the article con­sists of advantages and disadvantages of these technologies. The question was raised of possible application of consolidating stowing, which known abroad as the "paste filling". Also the article consists of description of features of the preparation and transportation of the filling hardening mixture and the possible ways to activate paste filling. Overview of the various chemical additives and alternative cementations components has completed.
Keywords: potash, mechanical backfill, hydraulic backfill, paste backfill, filling mixture, agitator mixer, chemical additives, salt waste

P. 8—13

To the contents N. 7

S. A. Shemyakin, Professor, Pacific State University,
A. Yu. Cheban, Senior Researcher, e-mail: chebanay@mail.ru,
Mining Institute of the Far Eastern Branch of the Russian Academy of Sciences,
D. N. Matveev, Postgrauate Student, Pacific State University, Khabarovsk, Russia

Self-Propelled Hopper Reloading to Work on the Complex Structure of Deposits Together with the Milling Combine and Dump

The design of the self-propelled handling two-part hopper capable of positioning when moving from a career milling combine, combine to take on host rock excavated in one section, and the minerals in the other. When filling the next section of the dump truck it enters the silo and loaded almost without stopping. The whole set of machines running without downtime, helping to significantly improve the efficiency of excavation and transport works.
Keywords: complex structure field, selective mining, milling processor, two-piece self-propelled reloading hopper, dump

P. 14—18

To the contents N. 7

E. A. Zagrivniy, Professor, e-mail: zagrivniy@yandex.ru,
D. A. Poddubniy, Postgraduate Student, e-mail: poddubniy.da@yandex.ru,
National Mineral Resources University (University of Mines), Saint Petersburg, Russia

Autoresonant Permanent Magnet Synchronous Motor with Sensorless Control System of Dynamically Balanced Drill on the Carrying Cable

An electrical system based on dynamically balanced drill on the carrying cable with autoresonant sensorless brushless electric drive (sensorless speed and position of the rotor) for drilling and taking bottom samples of Lake Vostok in Antarctica was presented.
Keywords: electromechanical system, autoresonant, drilling assembly, carrying cable, vibrations, electrical system, sensorless control system

P. 19—24

To the contents N. 7

Yu. I. Lei', Professor, e-mail: Lel49@mail.ru, Ural State University of Mining,
A. V. Giebov, Deputy Director on Scientific Problems, e-mail: glebov@igduran.ru,
Mining Institute of the Ural Branch of the Russian Academy of Science, Ekaterinburg,
D. Kh. li'bui'din, Head of the Laboratory, e-mail: ilbuldinDKh@alrosa.ru,
Institute "Yakutniproalmaz" of ALROSA (PAO), Republic Sakha (Yakutia), Mirny,
O. V. Musikhina, Associate Professor, e-mail: musihina_o@mail.ru,
Ural State University of Mining, Yekaterinburg, Russia

Design of Experiments in the Study of the Operating Parameters of the Technological Vehicles of Deep Open Pits

The proposed a systematization of experimental studies of the operating parameters of the technological vehicles deep quarries and methods of their implementation on the basis of the theory of experiment planning. It defines the specific features ofplanning of experiments in the factorial space mining and road transport variables with confined controllability. The proposed methods of formation and implementation of experimental plans of the research of operational parameters of the open pit mining vehicles: the active experiment on the most important factors and sharing production experiment and GIS modeling. Shows the testing of the pro­posed methodical provisions in the development of experimental statistical models of modes of movement of career dump trucks and normative models of diesel fuel consumption.
Keywords: quarry dump truck, the plan of the experiment, the distance of transporting, weighted average slope, the lift height of rock mass, the difficulty of the route, average operational speed, fuel consumption, geoinformation modeling

P. 25—31

To the contents N. 7

I. I. Demchenko, Professor, e-mail: demtchenkoii@yandex.ru, O. S. Ignatova, Senior Lecturer, e-mail: ignatova.ol@mail.ru,
Siberian Federal University, Krasnoyarsk, Russia

Substantiation of the Parameters of String Rumble

For sorting of coal is proposed to use the string rattle developed in the Siberian Federal University. The proposed rumble is structurally simple and does not create vibration. It uses a gravity feed method and screening sortable coal that would eliminate from the actuator. The design of the rumble and made it the current model. Selected and justified the main parameters that affect the string rumble. The developed method of calculation of the main parameters string rumble, including the parameters of the hopper, the front wall, sifting sections and tilters. The presence of the casing, closing the rumble during operation meets environmental requirements for operation of mining equipment.
Keywords: screen, sort, design, options, schema, screening section, tilters, power, performance, coal

P. 31—37

To the contents N. 7

E. Yu. Russkiy, Senior Researcher, e-mail: geomining@mail.ru, E. L. Alferova, Junior Researcher, e-mail: alferova@mosk.ru,
Institute of Mining of the Siberian Branch of the Russian Academy of Science, Novosibirsk, Russia

Research of Durability of Fans Knots at the Fire in a Single-Line Tunnel of the Subway

Modernization of tunnel axial VOMD-24 fans which on subways of Russia considerably developed the resource is considered. Emergency operation of work of system of ventilation of subways, such as fires is investigated. Safety of work of all subway depends on steady work of the ventilating equipment. The emergency modes in the subway on the example of distillation station of the Ekaterinburg subway are investigated. On the basis of the received distributions of temperatures the analysis of influence of the fires in a tunnel on reliability of work of systems of ventilation on the basis of calculation of dynamics and durability of knots of the VOMD-24 fan before modernization is made.
Keywords: the tunnel axial fan, a sheet shovel, the fires in the subway, dynamics and durability

P. 38—43

To the contents N. 7

A. L. Yablonev, Associate Professor, e-mail: alvovich@mail.ru, Tver State Technical University, Tver', Russia

Current Status of Peat Engineering and Manufactured Product for Peat Extraction

An assessment of the current status of the peat industry are presented. Provides information about the different types of peat equipment, producing on the territory of Russia and foreign countries. Highlighted concerns for large firms, producing peat equipment abroad. Showing the opportunity to acquire new equipment to the representatives of the peat industry. Lists the factors contributing to the growth and consolidation ofpeat and peat engineering enterprises of the industry as a whole now.
Keywords: peat, peat engineering machinery, peat equipment, miller, raker, tedder, bunker harvester

P. 44—48

To the contents N. 7

Mining Equipment and Electromechanics. N. 8-2016

V. V. Aksenov, Head of Laboratory¹, Professor²,
V. Yu. Beglyakov, Junior Researcher¹, Associate Professor²
M. Yu. Blashchuk, Junior Researcher¹, Associate Professor², e-mail: mby.tpu@gmail.com,
A. B. Efremenkov, Senior Researcher¹, Director², A. A. Kazantsev, Researcher Associate¹, Head of Chair²,
A. A. Khoreshok, Director¹, Professor², A. V. Walter, Associate Professor^2
1FRC of Coal and Coal Chemistry of SB RAS, Kemerovo, Russia
²Yurga Technological Institute Branch of Tomsk Polytechnic University, Yurga, Kemerovo region, Russia
³Mining Institute of the Kuzbass State Technical University after T. F. Gorbachev, Kemerovo, Russia

Geokhod: Objectives, Characteristics, Prospects

The basic idea of geokhod as tunneling devices is presented. The purpose of geokhod, its characteristics and field of application are considered. The appointment systems of geokhod and the principle of their action are described. The process of creating and testing prototype of geokhod and its prospects are briefly considered.
Keywords: geokhod, geowinchester technology, geokhod technology, geo environment, tunnel boring machine

To the contents N. 8

V. V. Aksenov, Head of Laboratory¹, Professor², e-mail: 55wa42@mail.ru, V. Yu. Beglyakov, Junior Researcher¹, Associate Professor², A. A. Kazantsev, Researcher Associate¹, Head of Chair²,
A. V. Walter, Associate Professor2, A. B. Efremenkov, Senior Researcher¹, Director^2
1FRC of Coal and Coal Chemistry of SB RAS, Kemerovo, Russia
²Yurga Technological Institute Branch of Tomsk Polytechnic University, Yurga, Kemerovo region, Russia

Participation Experience in the Project for the Organization a High-Tech Industries

Describes the experience the implementation of the project N02.G25.31.0076 in an open contest of the Ministry of Education and Science of the Russian Federation and the Russian Federation Government Resolution N 218 from 09.04.2010.
The article gives a description of the project, the project management scheme, team building and problem solving methodology (challenges) arising during the implementation of the project.

Keywords: geokhod, geokhod technology, geotechnology, geotechnics, geological environment, project design, business partner, roadmap, scheduling

To the contents N. 8

A. V. Koperchuk, Associate Professor¹, e-mail: avkop@tpu.ru, V. Yu. Beglyakov, Junior Researcher², Associate Professor^1
1Yurga Technological Institute Branch of Tomsk Polytechnic University, Yurga, Kemerovo region, Russia
²FRC of Coal and Coal Chemistry of SB RAS, Kemerovo, Russia

Choice of the Circuit Solution of the Starting Device of the Geokhod

Requirements to the starting device of the geokhod are formulated. Need of development of the starting device of the geokhod is proved. Options of circuit solutions of starting devices of the geokhod are considered and analyzed. The design of the starting device of the geokhod is shown.
Keywords: rock mass, tunnel machine, geokhod, starting device of the geokhod

To the contents N. 8

À. V. Walter, Associate Professor, e-mail: avwalter@rambler.ru,
Yurga Technological Institute Branch of Tomsk Polytechnic University, Yurga, Kemerovo region, Russia

The Factors Influenced on Errors of Rotational Surfaces of the Geokhod's Large-Sized Bodies

There are the results of studies of geometric precision rotation surfaces of the geokhod's large-sized bodies. A brief characterization of the geokhod's large-sized bodies as production's object and the objective of the study are given. The article contains the descriptions of methodologies coordinate measurement of geokhod's prototype and regression modeling of rotational surfaces. There are the data on the factual accuracy of surfaces and identified factors influenced on their error.
Keywords: geokhod, large-sized bodies, accuracy, regression analysis, modeling, coordinate measurement, technological heredity

To the contents N. 8

A. N. Ermakov, Postgraduate Student, e-mail: cnnb@yandex.ru,
Kuzbass State Technical University after T. F. Gorbachev, Kemerovo, Russia

Estimation of Coefficient of Variation of Torque of Geokhods out of Cross Section Cutting Drum

The problem of evaluating the torque coefficient of variation of the out of cross section cutting drums of geokhod at the stage of determining the rational cutters set scheme. It was found that the greatest influence on the coefficient of variation have a total number of cutters and angle of coverage. It determines the minimum number of cutters required for the torque coefficient of variation of less than 20 %. The advantage of crown-type out of cross section cutting drums relative to the disc-type is also shown. The results can be used in the development of the design of the out of cross section cutting drums of geokhod.
Keywords: geokhod, geowalker, roadheader, coefficient of variance, groove cutter, tunneling

To the contents N. 8

À. À. Khoreshok, Professor, K. A. Ananyev, Senior Lecturer, e-mail: ananiev_k@rambler.ru, Kuzbass State Technical University after T. F. Gorbachev, Kemerovo, Russia

Determination of Geometrical and Setting Parameters of Geokhods Experimental Model Cutting Drums

The article is devoted to investigation of basic geometrical and setting parameters of geokhods experimental model cutting drums, which include the length and setting angle of the drums to the front face plane. The equation for the determination of drums rational length is obtained. The recommendations of drums limit setting angles to the plane of the front face are given.
Keywords: geokhod, cutter drum, overbreak, profile

P. 30 - 33

To the contents N. 8

V. V. Aksenov, Head of Laboratory¹, Professor ²,
V. Yu. Beglyakov, Junior Researcher¹, Associate Professor², e-mail: begljakov@rambler.ru,
A. A. Kazantsev, Researcher Associate¹, Head of Chair²,
I. K. Kostinets, Director³, A. V. Koperchuk, Associate Professor^2
1FRC of Coal and Coal Chemistry of SB RAS, Kemerovo, Russia
²Yurga Technological Institute Branch of Tomsk Polytechnic University, Yurga, Kemerovo region, Russia
³Branch Kuzbass State Technical University named after T. F. Gorbachev in Belovo, Belovo, Kemerovo region, Russia

Classification of Geometric Parameters of External Propulsor Geokhods

The basic geometrical parameters characteristic of the external propulsion geokhods offered principles of classification of geometrical parameters characteristic Prizna Cams, introduces the concept of forming the bearing surface ofthe external mover, justified the choice of the type of generator.
Keywords: geohod, external mover, support surface forming, zakonturtion channel, the contact patch

To the contents N. 8

A. À. Dronov, Assistant1, e-mail: aa-dronov@mail.ru,
M. Yu. Blashchuk, Junior Researcher², Associate Professor¹,
V. Yu. Timofeev, Associate Professor^1
1Yurga Technological Institute Branch of Tomsk Polytechnic University, Yurga, Kemerovo region, Russia
²FRC of Coal and Coal Chemistry of SB RAS, Kemerovo, Russia

Development of Requirements to the Bearing Unit of Geokhod

The substantiation of the need for a bearing unit of geokhod. Based on the features of the work developed requirements to the bearing unit of geokhod.
Keywords: geokhod, geovinchestering technology, bearing unit of geokhod

To the contents N. 8

I. L. Pastoev, Professor, e-mail: pastoev@yandex.ru, National University of Science and Technology "MISiS", M. M. Kalinkin, Design Engineer, e-mail: kalinkinmikhail@gmail.com, Takraf GmbH (Representative Office), Moscow, Russia

A Method of Synchronizing of a Large Number of Cylinders

There are different methods of synchronization of hydraulic cylinders. The way, that you chose, depends on the amount of cylinders, which you want to synchronize. The main idea of this article was to analyze an existing method of synchronization and find more appropriate for using in mining machines. This system should provide a high level of synchronization of the whole system of the machine because it would be used for more than one hundred hydraulic cylinders. Each method, which is described in this article, has its own error. For mining machines we have to find a method with the smallest error and which can be used in different situations and temperature. We offered the way for minimizing the error of synchronization of a large number of cylinders because in case of an error of the system more than 5 % you can get destructions of hydraulic and conveying system of the whole machine.
Keywords: hydraulic, hydraulic cylinders, hydraulic motor, synchronization, error, a liquid flow regulator, automated coal units

To the contents N. 8

Mining Equipment and Electromechanics. N. 9-2016

G. D. Trifanov, Associate Professor, Head of Chair, e-mail: kanat@pstu.ru,
V. Yu. Zverev, Postgraduate Student, Perm National Research Polytechnic University, Perm,
S. A. But, Chief Specialist for Fixed Installations, e-mail: sergey.but@uralkali.com, Uralkali, PAO, Berezniki, Russia

Possibilities of Increasing the Productivity of the Exploited Skip Hoisting Installations Potash Mines

The authors was described the development trend of the potash mines, which causing the necessity of increasing the productivity of lifting equipment of vertical shafts. In this paper, the formula for calculating the productivity of lifting mine plants was presents, the factors affecting its value were listed. To identify the reserves of productivity and design interventions to it increased the every factor and parameters that control it, were analyzed separately. The factors, which change is not possible, because of the negative impact on the reliability and safety of lifting plants were identified. For other factors, the authors propose recommendations that contribute to the change of operating mode and increasing of the intensity of hoist plant work. In the paper, presents the percentage of increased the productivity in the implementation of certain measure.
Keywords: mining hoist plant, mine, productivity, vertical shaft, skip, payload, operation mode, design standards, reserve, kinematic parameters, pause

P. 3–8

To the contents N. 9

I. I. Mazein, Deputy Director General, Chief Engineer, A. N. Ustinov, Chief Mechanic, M. V. Tyaktev, Lead Engineer, "LUKOIL-PERM", OOO, À. À. Rybin, Professor, D. I. Shishliannikov, Associate Professor, e-mail: 4varjag@mail.ru, M. M. Tyaktev, Student, Perm National Research Polytechnic University, Perm, Russia

The Results of Pilot Tests of Promising Drive of Downhole Sucker Rod Pumping Units

The analysis of the design features of the drive rod downhole pumping systems for oil production. The urgency of the problem of increasing the efficiency of use of pumping equipment oil industry: reduction of specific energy consumption for production of formation fluid, increasing the reliability of the pumping plant components, the implementation of intelligent monitoring and control sta­tions that provide a comprehensive assessment of performance of systems "well — Deep Well Pumping Unit" and regulation of drive operating parameters widely. The results of the pilot testing of downhole hydraulic actuator rod pumping systems and mechanical drives — balancing pumping units equipped with brushless motors and intelligent control stations such as VLT SALT. It is proved that the use of hydraulic drives the downhole sucker rod pumping units in the development of efficient new wells put into operation, at pe­riodic and short-term operation, as well as the elimination of asphaltene deposits. Equipping mechanical pumping units brushless motors and intelligent control stations will automate the process of oil production, will cause a decrease in specific energy consumption, will improve the reliability and efficiency of the use of fishing equipment.
Keywords: deep well pumping unit, drive unit, pilot tests, specific energy consumption

P. 8–14

To the contents N. 9

O. I. Dudar, Associate Professor, e-mail: olegdudar@yandex.ru, E. S. Dudar, Associate Professor, Perm National Research Polytechnic University, Perm, Russia

Selection of the Refrigerating Equipment for Ventilation of Blind Workings

The influence of various parameters on the temperature field formation at working areas in the blind workings of a potash mine is analyzed. Use of the application program package "Mineclimate" as well as applying of the thermal model of a mine developed on its basis allowed to carry out a numerical experiment in order to study an effective cooling zone.
Keywords: mine working, booster fan, air conditioning equipment, air conditioning

P. 14–18

To the contents N. 9

N. I. Alymenko, Professor, e-mail: nik.alymenko@yandex.ru,
À. À. Kamenskikh, Research Associate, e-mail: anton.kamenskikh@mi-perm.ru,
À. I. Petrov, Engineer, e-mail: alex231287@yandex.ru,
Mining Institute of the Ural Branch of the Russian Academy of Science,
A. V. Nikolaev, Associate Professor, e-mail: nikolaev0811@mail.ru,
Perm National Research Polytechnic University, Perm, Russia

The Mine Ventilation Control System "Double" in Reverse Mode

The article presents the results of application in production at the mine "Double" auxiliary fans to ensure a reversible ventilation mode. The data of field measurements at the mine as a result of air depressional shooting before and after the introduction of the auxiliary fan. Prior to the introduction of fans providing a reversible mode ventilation mine did not provide the required (calculated) amount of air, which is less than 40 % of the normal mode of ventilation. Three variants of the solution of this problem. As a result of one of the options in reverse mode ventilation managed to secure the mine calculated amount of air, which amounted to more than 90 % of the normal operation of the main fan installation.
Keywords: main ventillation installation, the shaft, a reversible mode, the aerodynamic drag, auxiliary fans

P. 19–22

To the contents N.9

R. A. Sagin, Professor, å-mail: eagp@mail.ru, A. V. Nikolaev, Associate Professor, e-mail: nikolaev0811@mail.ru, Perm National Research Polytechnic University, Perm, Russia

Technological Aspects of the Automation of the Process of Preparation of Air in Underground Mining Operations

In the cold season, when the safety rules prescribed by heated air supplied to the trunks of the underground mining enterprise, there is the problem of managing this process associated with the energy-expenditure.
This article provides a list of parameters that need to be monitored with the help of air handling automation process, carried out in the mine hot-air installation (HAI). A structural work HAI control algorithm.
Keywords: automation of the process, mine hot-air installation, heating of the air, energy efficiency

P. 23–28

To the contents N. 9

V. A. Romanov, Postgraduate Student, D. I. Shishlyannikov, Associate Professor, e-mail: 4varjag@mail.ru,
A. K. Muravskiy, Associate Professor,
Perm National Research Polytechnic University, Perm, Russia

Operating Experience of Mine Shuttle Curs on Potash Mines

Show the analysis of the design features of the mine shuttle cars that are used in potash mines, discussed the advantages and disadvantages of electromechanical drives of mine shuttle cars. Shows statistical information on the occurrence of failures assemblies and parts of mine shuttle car, described the basic operation of the traction drives of shuttle cars under the existing mine.
Keywords: mine shuttle car, reliability, failures, electromechanical drive, loading

P. 29–33

To the contents N. 9

N. N. Sof'ina, Director, NPP ROS, OOO, D. I. Shishlyannikov, Associate Professor, e-mail: 4varjag@mail.ru, K. A. Kornilov, Student, Perm National Research Polytechnic University, Perm, Russia

Evaluation of the Technical Condition Mining and Oil Field Equipment by Excitation of Resonant Vibrations

The urgency of the application non-destructive testing methods in the evaluation of the technical state mining and oilfield machinery. Proved promising methods of excitation of resonant vibrations in the diagnosis process equipment compared to traditional non-destructive testing methods. The design and the algorithm of the synchronous multi-channel analyzer "Kamerton" produced by "NPP" ROS "(Perm). The methodological research foundations defects using this analyzer. The basic quality criteria for characterizing the state of the elements technical objects on the results of the diagnosis.
Keywords: diagnosis, method of excitation of resonant vibrations, defects analyzer "Kamerton"

P. 34–37

To the contents N. 9

S. A. Chupin, Assistant, V. I. Bolobov, Professor, e-mail: Staseg-88@mail.ru, National Mineral Resources University (University of Mines), Saint Petersburg, À. B. Maksimov, Postgraduate Student, Perm National Research Polytechnic University, Perm, Russia

The Investigation of the Influence of the Thermo Mechanical Treatment of the Cutter Body Material on its Hardness

The causes of failure of the tangential rotary cutters of the road header during excavations in rocks with medium strength are analyzed in the article. The most typical cause of failure of cutters is premature wear of the tool holder (body) cutter is showed. The most effective way to improve the wear resistance is to increase its hardness is known. Investigation of the influence thermo mechanical treatment of the cutter body material to its hardness is carried out. The thermo mechanical processing of the cutter body material is increasing its hardness is found. The increase of material hardness is proportionally of the increase its strain intensity using thermo mechanical treatment are found. The increase of the hardness is resultingfrom the use of thermo mechanical treatment is increased wear resistance of the cutter body material is concluded.
Keywords: tangential rotary cutter bit, wear resistance, hardness, road header, shearer, thermo mechanical treatment

P. 38–42

To the contents N. 9

A. K. Muravskiy, Associate Professor, å-mail: mak2000mak@yandex.ru, Perm National Research Polytechnic University, Perm, Russia

On the Definition of the Speed and the Angle Cutting of the Teeth Bucket Hydraulic Excavator Backhoe

The paper presents the results of allowing analytically determine the size and direction of the speed of the teeth of the bucket and cutting angle of the teeth of the bucket hydraulic excavator with working equipment backhoe at any moment during the motion of the working elements of the equipment separately and the possible combination of their movements.
Keywords: hydraulic excavator. equipment of excavator, backhoe, excavator bucket, cutting angle, cutting speed, rock, soil

P. 42–45

To the contents N. 9

G. D. Trifanov, Associate Professor, Head of Chair, e-mail: kanat@pstu.ru, V. E. Vinokurov, Senior Lecturer, e-mail: vve56@yande.ru, Perm National Research Polytechnic University, Perm, Russia

New Books on the Steel Ropes

Information on published books on the steel ropes was given. In the analytical directory of "Steel wire ropes" provides information for analyzing of specific steel ropes technical problems, taking into account possible options for resolving them. In the almost instant dissemination of information the author sees the main purpose of the Handbook is to assist in the proper disposal of information to solve specific technical issues. In the book "Ropes of mine hoist plats" calculation of hoist, balancing, brake and conductor ropes with subject the features of their operation. There is damage ropes for mine hoisting installations and methods of control of their condition was considered. Great attention was paid to the nondestructive inspection of wire ropes.
Keywords: monograph, the steel ropes, the history of creation, structure and properties of ropes, the calculation of ropes, operation, development prospects

P. 46–48