ining or quarrying (E21C)

E   Fixed constructions(159044)
E21C              ining or quarrying(17294)
E21C1 - (290)
E21C3 - (5992)
E21C5 - (278)
E21C7 - (12)
E21C9 - (11)
E21C11 - (46)

Self-propelled mining machine // 2646295
FIELD: mining.SUBSTANCE: group of inventions relates to mining. Self-propelled mining machine contains a movable supporting frame, a rotating tool drum and tools for driving a mine, rotational drive for actuation of the tool drum, boom assembly, pivoting device for rotating boom assembly relative to the machine carrier frame around pivot axis (S) tilt device for tilting boom assembly about tilt axis (K), rotational mechanism. Tools for excavating the mine are distributed along the lateral surface of the tool drum, wherein at least one of the tools for driving the mining work includes a rotatably mounted tool holder with a supporting head configured to secure a number of bits. Boom assembly includes a main body and a front assembly of the support arm on which the tool drum is rotatably mounted. Rotary mechanism is provided between the carrier arm assembly and the main body for rotating the support arm assembly and the tool drum relative to the main body about the longitudinal axis (L) of the boom assembly. Support arm assembly is substantially L-shaped and/or hollow, and a gear train is mounted in the carrier arm assembly.EFFECT: continuous tunneling, galleries or shafts even in hard rock with high productivity and with little tool wear.14 cl, 16 dwg

ethod for open pit mining of mineral deposits // 2646275
FIELD: mining.SUBSTANCE: method uses an automatic control system to differentiate the rocks of the complex structure deposit with the release of interlayers of gangue that is transported by the scraper conveyor along the classification grid, the slots of which are overlapped by rotary flaps mounted articulously under the classification grid by means of hydraulic cylinders and rods. At the same time, the empty rock falls on the unloading conveyor and then into the dump truck for transportation to the dump. Differentiated by means of an automatic control system, the volumes of fine and fine fractions of the mineral come into the compartments corresponding to their volume of the vehicle body.EFFECT: increase of productivity, technological efficiency and ecological safety with obtaining of conditioning fractions of rock mass through a continuous excavation-classification process in the development of a complex structure deposit.5 dwg

Pneumatic striking mechanism // 2646272
FIELD: machine engineering.SUBSTANCE: pneumatic striking mechanism includes a cylindrical body with outlet channels, a ring flange with a through central hole, a working tool with a stem, a stepped striker with rod portion installed in the central hole of the ring flange with piston portion with channels-grooves, constantly located in through axial hole of the stepped striker, a controlled circular chamber of the working stroke between inner surface of the cylindrical body and the striker rod portion, a cup fixed relative to the cylindrical body with a channel for supplying air from the network into the chamber of the network air, a circular distributing chamber located in the bushing of cylindrical body forming a ring bridge from the side of controlled ring chamber of the working stroke and limiting movement of the step striker, an idle stroke chamber from the side of the working tool shank held by the spring relative to the cylindrical body. There is a channel-groove or channel-flat provided on the rod portion of the stepped striker under inclination to its longitudinal axis. Said inclined surface has a curvature not lower than the second order, and the cross section of the channel-groove or channel-flat is widening towards the end of the rod portion of striker with outlet into circular distributing chamber.EFFECT: reduced air back pressure in the working stroke chamber at the end of the idle stroke, increased air pressure at the beginning of the working stroke, impact energy and impact frequency of pneumatic striking mechanism are increased.2 dwg

Pneumatic striking mechanism // 2646271
FIELD: machine engineering.SUBSTANCE: pneumatic striking mechanism includes a cylindrical body with outlet channels, a ring flange with a through central hole, a working tool with a stem, a stepped striker with rod portion installed in the central hole of the ring flange with piston portion with channels-grooves, constantly located in through axial hole of the stepped striker, a controlled circular chamber of the working stroke between inner surface of the cylindrical body and the striker rod portion, a cup fixed relative to the cylindrical body with a channel for supplying air from the network into the chamber of the network air, a circular distributing chamber located from the side of the ring flange in the bushing of cylindrical body with a ring bridge limiting movement of the step striker, an idle stroke chamber from the side of the working tool shank held by the spring relative to the cylindrical body. There is a channel-groove or channel-flat provided on the rod portion of the stepped striker under inclination to its longitudinal axis. The cross section of the channel-groove or channel-flat is widening towards the end of the rod portion of striker with outlet into circular distributing chamber.EFFECT: reduced air back pressure in the working stroke chamber at the end of the idle stroke, increased air pressure at the beginning of the working stroke, thereby impact energy and impact frequency of pneumatic striking mechanism are increased.1 cl

ining machine gathering head // 2646259
FIELD: drilling of soil or rocks; mining.SUBSTANCE: group of inventions refers to mining machines with a gathering head. Gathering head is installed at the front end of the mining machine. Gathering head has a front end and a rear end, the rear end being intended to be positioned adjacent to the mining machine. Head comprises at least one base extending along the length of the head, the base having a surface of the base for contacting the material collected by the head, a pair of side walls, disposed at the longitudinal ends of the base, at least one back plate, a shelf extending along the length of the head and descending, projecting forward and backward from the base, providing a leading edge of the head. Each of the side walls has a side surface for contact with the material and tapering inwardly in the widthwise direction of the head from the front end to the rear end. Each lateral surface narrows outwardly relative to the surface of the base from the lowest region to the uppermost region of each side surface, directing the flow of material to the surface of the base and the material contacting surface. In this case, the back plate has a material contacting surface, extending upward from the rear region of the surface of the base and continuing in the lengthwise direction of the scraping head between the side walls.EFFECT: technical result is the elimination of the need for additional raking feet, facilitating the movement of the extracted material.15 cl, 5 dwg

Air flow system for mining machine // 2646244
FIELD: mining.SUBSTANCE: cutting machine includes a frame, a boom, a cutting head, a valve and a actuating device. The boom defines an upper and a lower surface, an inner chamber, and includes a first end connected to the frame, the second end and a hole located on lower surface and in hydraulic connection with inner chamber. The cutter head includes a plurality of teeth and is supported at the second end of the boom. The valve is connected to the boom and is movable between a closed position in which the opening is closed, and an open position in which the opening is at least partially open. The actuating device is connected to the valve to selectively move the valve between a closed position and an open position.EFFECT: improvement of air flow system.27 cl, 7 dwg
Substance for processing reinforced concrete // 2645950
FIELD: chemistry.SUBSTANCE: invention can be used for processing, in particular drilling, reinforced concrete for repair, reconstruction, and destruction of buildings, for cutting reinforcement, or in any other cases where it is required to obtain holes in reinforced concrete. A substance (liquid) for processing reinforced concrete contains oleic acid, potassium chloride, potassium hydroxide, and cetyltrimethylammonium bromide during the next component concentration (g/l): oleic acid 20.0…50.0; potassium chloride 0.03…0.05; potassium hydroxide 2.5…3.5; cetyltrimethylammonium bromide 0.03…0.04; water - the rest. Herewith the pH of the oleic acid solution is from 7 to 9.EFFECT: increasing the drilling speed, reducing the axial drilling force and fluid flow.2 cl, 1 tbl

ethod of development of solid rocks // 2645702
FIELD: construction; mining.SUBSTANCE: invention relates to mining, construction and can be used for the development of solid rocks by means of loosening machines without drilling and blasting operations. Method for the development of solid rocks includes massive drilling of wells throughout the area of the block being prepared for excavation, loosening by machines with destruction of the rock ends between the wells. Drilling series of wells and positioning are carried out by a drilling rig with the help of an automatic system down to the calculated depth along the block being prepared for excavation. Minimum diameter of the wells for weakening the mass rock, the calculation of the wells number, the distance between the wells in the row and the distance between the rows are determined on the basis of an assessment of physical and mechanical characteristics of the rock. Tip of the loosener is lowered into the drilled wellhead for subsequent downgrade loosening. Direction of the loosener movement along the row of wells is provided by the automatic system followed by moving to the upper position and positioning the loosener tip in the drilled wellhead of the adjacent row within the zone of the horizontal top layer. After loosening of the top layer of the mass rock, the loosened rock mass is collided by a bulldozer downward followed by loosening the underlying rock layer with the loosening unit.EFFECT: method increases the productivity, reliability and technological efficiency of the development of solid rocks.1 cl, 3 dwg

ethod for development of steeply dipping deposits of solid minerals // 2645697
FIELD: mining.SUBSTANCE: invention relates to the mining industry and can be used in the development of steeply dipping deposits of solid minerals, in particular rock and half-rock types. Method includes positioning the automated deep mining complex in relation to the face, bringing it into the working initial state by means of a mechanism for rotating the cantilever telescopic boom in the vertical plane with the main, intermediate and head sections taking into account the direction of the ore body. To intensify the process of cutting and activating pneumatic conveying, a pick-up and loading machine is equipped with a vibration unit, the vibration frequency of which is regulated depending on the physical and mechanical characteristics of the rocks and the cutting parameters of the bailer-loading organ. Drive of the pick-up and loading machine and the vibration unit are placed on the head section, and the telescopically flap nozzle is placed in the head section.EFFECT: technical result consists in increasing the productivity, reliability and increasing the technological efficiency of the rock failure of various degrees of strength in confined spaces by adjusting the cutting force in the development zone and by forming fracture zones in the surface layer of the treated ground, taking into account the strength characteristics of the rock, reducing the volume of overburden mining, reducing environmental impact in the area of mining.1 cl, 4 dwg
ethod for separately mining and transporting thick coal seam with gangue, and backfilling goaf with gangue // 2645694
FIELD: mining.SUBSTANCE: invention relates to mining. Method for separately mining and transporting thick coal seams with gangue and backfilling a goaf with gangue comprises tunneling transportation roadway (1) and track roadway (2) in parallel in the shaft. Connecting the transport roadway and the track roadway to form an open-off cut. Employing comprehensive mechanical solid filling and coal mining technology for coal recovery and goaf backfilling during coal mining. Mining the coal seam and the gangue seam in layers from top to bottom in sequence. Transporting the coal down to the transportation roadway via front scraping conveyor (10), and transporting the coal out of a working face via belt conveyor (5) in the transportation roadway. During gangue seam mining, reversing the front scraping conveyor to transport the gangue to the track roadway, transporting the gangue to goaf (14) via reverse gangue loader (6) and feeding scraper (7) in the track roadway, and backfilling the gangue to goaf (14) via backfill scraping conveyor (12).EFFECT: method improves quality and degree of coal mining.1 cl, 7 dwg

Local waters purification method for watering of peatlands // 2645367
FIELD: peat extraction.SUBSTANCE: invention relates to the extraction of peat, specifically to the work on the restoration of peat bogs, and in particular to the watering of worked-out peatlands. Method consists of using water from an accessible source, its redistribution to distributors throughout the peatland area. Moreover, on the developed peat bog, an artificial relief is created in the form of barrier vertical waterproof fences with the possibility of flowing to the free areas between them. In this case, watertight fences are tied to stakes, that are placed vertically and their lower ends are buried in the soil of the peat bog, while on the area of the worked peat bog the main and distribution polyethylene pipelines are laid on the bottom, they are equipped with distribution wells, in the upper part of which are provided evenly on the sides of the surface with holes for draining the water and provided with a lid, in addition, the incoming first well of the main pipeline is combined with a mobile pumping station in the form of SNP, and the outgoing end portion thereof is connected to a partitioning hydraulic engineering structure, dividing the worked-out laid operational road into an upper and a lower portion, a well in the center of which the bottom is supplied with a discharge vertical pipe, connected by means of a knee at a level difference with a polyethylene main pipeline with distributing pipelines of the second section, while a well with an installed vertical discharge pipe is supplied from above with a lid in the form of an external cylinder with a screw elevator with the possibility of moving the outer cylinder along the height.EFFECT: technical result is the provision of efficient injection of local waters into the main and distribution pipelines with wells-dampers, ensuring controllability and flexibility of the system for flooding the developed peatlands to resume marshes to its original state and improve the ecological situation.6 cl, 2 dwg

Systems and methods for determining wear of grinding elements of grinding machine // 2645056
FIELD: machine engineering.SUBSTANCE: invention relates to systems and methods for determining wear of the grinding elements of earth-moving machines, such as trenchers. The invention relates to a wear detection system comprising a multi-level wear protection sensor system. The multi-level wear protection sensor system contains protection of the first level, protection of the second level and protection of the third level.EFFECT: improvement of the system.36 cl

ethod for open pit mining of mineral deposits // 2645051
FIELD: mining.SUBSTANCE: rock mineral from excavated faces is transported by dump trucks to crushing and loading station on end wall at the open pit end, where it is loaded through crushers of coarse crushing to a conveyor installed at the angle of the end wall inclination of the open pit end for further delivery to the surface. After the end wall of the open pit is formed to a sufficient depth under the crushing and loading station, the conveyer hoist is extended by lifting conveyer installed at the angle of end wall inclination by placing its tail part on a temporary pillar. Above the tail portion of the lifting conveyor on the temporary pillar there is a new crushing and loading station with unloading platform for dump trucks installed on the embankment of overburden rocks. The mineral is transported from other end of the open pit by dump trucks to crushing and loading station, and the overburden rock is transported to the surface. After a level of open pit bottom of sufficient area is formed in this end of the open pit, an inner dump for overburden rock is arranged on this level. The crushing and loading station on the temporary pillar and the lower lifting conveyor are dismantled. The pillar is developed with transportation of overburden rock to the inner dump, and mineral is delivered to the crushing and loading station left at the end wall of the open pit. After dump trucks finish unloading at the inner dump, during the return trip they enter the faces at lower benches of the temporary pillar, where they are loaded with minerals which are transported to the crushing and loading station at the end wall of the open pit and supplied to the surface by upper conveyer line. After unloading at the crushing and loading station during the return trip, the dump trucks enter the faces and on the upper benches of the temporary pillar, where excavators load thereof with overburden rock which they transport and unloaded at the inner dump.EFFECT: reduced costs for development extended in plan minerals laying deeply from the surface of deposits.4 dwg

ining machine (versions), method for developing material of drift wall and disc cutter // 2645017
FIELD: mining.SUBSTANCE: mining machine for interacting with the drift wall comprises a platform, a cantilever having an end and pivotally attached to the platform providing rotation of the cantilever around the rod in the first direction, a drive having a first end connected to the cantilever and providing rotation of the cantilever in first direction, a first disc cutter mounted at the end of the cantilever having the first cutting edge configured for rotating around the first axis and interacting with the drift wall at the first angle of attack when the cantilever turns in said first direction, and the second disc cutter mounted at the end of the cantilever having the second cutting edge configured for rotating around the second axis and interacting with the drift wall at the second angle of attack when the cantilever turns in said first direction. The second angle of attack equals to the first angle of attack. Said first and second axes are not in the same plane.EFFECT: reduction of applied force and increase of disc cutter efficiency with reduction of power consumed per one extraction of rock volume unit.41 cl, 11 dwg

Cone shape tooth holder // 2644981
FIELD: disintegrators and crushing devices.SUBSTANCE: group of inventions refers to crusher feeders for the mining industry. System with a tooth contains a holder and an assembly with a tooth. Holder has the first end and the second end, in which an opening is formed extending between the first end and the second end along the longitudinal axis, herewith the opening surface being conical and the diameter of the opening near the first end being greater than the diameter of the opening near the second end. Moreover, the surface of the opening forms an angle between 0.5 degrees up to 10 degrees with respect to the longitudinal axis. Tooth assembly includes an axle inserted into the holder opening along the longitudinal axis, herewith the axle being conical in order to match the opening.EFFECT: preventing the concentration of stresses around the end of the holder, reducing the probability of shear failure.19 cl, 6 dwg

ethod of watering peat bogs, predominantly cutover bogs // 2644791
FIELD: mining.SUBSTANCE: invention relates to the peat digging, specifically to the restoration works of peat bogs, and in particular to the watering of cutover bogs. Watering of cutover bogs is a structural scheme, including reservoir 1, outflow canal 3 and vertical control flap 6 at the beginning of supply canals 4 and 5, made in an earthen channel with shore embankment. Supply channels 4 and 5 are connected to a hydraulic structure constructed as a vertical waterproof fence overlapping each flooded area map from the bottom to the surface. Vertical fence is generally made of inexpensive materials, for example, polyethylene film 12 or capron fabric, and other materials, fixed to the stakes immersed by their lower end into the soil of peat bog.EFFECT: this makes it possible to reduce the material expenditures on the construction of the hydraulic structure and to provide the possibility of wider use for the watering of the whole massif for the bogs restoration to its initial approximation of the peat deposit with one vegetation, to reduce energy costs and improve the ecological situation.5 cl, 2 dwg
ethod of under-level plasts' development processing with the binding of the established space // 2644185
FIELD: mining.SUBSTANCE: way to include the preparation of the extraction site to simulate the extraction fail plot of under-level short treatment sides, ventilated due to the general mine depression. The working out of the formation begins under the protection of the previously erected inter-horizon insulating strip, and in the presence of intercalation pillars also the insulating strips that were previously erected simultaneously with the flank slopes from the hardening tab with the advance of the cleaning work moving in the direction from the inter-horizon strip to the main drift. The working out of the excavating section is carried out in one wing - from the spent section towards the central slope, and in the other - from the central ramp to the target in the direction of the untreated excavation site, at a given value of the step of laying the worked-out space, no more than the allowable span of exposure of the roof of the formation along the line of incidence and strike.EFFECT: reducing labour intensity and ensuring the safety of mining operations.2 dwg

ethod of controlling additional water reserves in irrigation of cutover bogs // 2643822
FIELD: fuel industry.SUBSTANCE: invention relates to peat digging, specifically to the work on the restoration of peat bogs on the cutover bogs and their rehabilitation, as well as the water regulation of the irrigable area with guaranteed maintenance of the normal banked up water level at any flood intensity. Claimed method of controlling additional water reserves in irrigation of cutover bogs is a structurally control system that includes a cascade control system with ponds 1 and 2 accumulating on-site runoff water flowing from nearby bogs. Ponds 1 and 2 are equipped with dams 3 and 4 and have a surface water outlet with a siphon and a bottom outlet with gate 8. Main channel 10 is made by barriers 11 arranged in a cascade in the direction of the water flow and connected to two meandering channels 12 and 13, such as serpentine. Meandering channels 12 and 13 are provided at the end with shutters 14 and 15 and are connected to the pond-distributor of connate water 16. Barriers 11 consist of a retaining overflow wall with an axis of rotation. Main channel 10, meandering channels 12 and 13, barriers 11 are made of environmentally friendly materials, for example, from planks of chipped or wicker twigs of shrub vegetation in the form of willow or alder. Upper wall of the meandering channels is located below the calculated water level on the cutout bogs. Problem solution of fire safety should be complex, which creates the possibility of introducing the proposed method, where the moisture content of the peat deposit is maintained at the moisture level of more than 50 %. In addition, due to the resumption of bog and peat formation processes and the subsequent revival of biospheric functions.EFFECT: such a method of water regulation of the irrigable area rationally uses cascades, both from ponds and in the main channel with barriers for irrigation of the cutover bogs, allows the use of on-site runoff of snow melt water and rainwater; the material costs are reducing, and the danger of emergencies is also reducing and the ecological situation around the cutover bogs is improving.4 cl, 4 dwg

ethod of vacuum riser line control // 2643392
FIELD: oil and gas industry.SUBSTANCE: system for deep-sea mining of mineral resources comprises a process platform for processing the substance, the riser line for creating an upward flow of extracted substance from the bottom of water body to the process platform, a return pipe for creating return flow of sea water mixture therein and not representing no value of substance portion passing through the process platform in the direction of water body bottom, and a system for controlling the flow rate of the deep-sea mineral mining. The flow control system for the return pipe comprises means for measuring the internal pressure of the return pipe for transmitting the pressure signal in the return pipe and the pressure control means for controlling the flow rate in the return pipe. An upward flow of non-valuable substance is created in the riser line passing from bottom of water body to the process platform. The material is processed on the process platform to produce a substance representing a valuable and non-valuable portion of the substance. The return flow in the return pipe is created from the mixture of sea water and the non-valuable portion of substance passing from the process platform towards the bottom of the water body. The pressure in the return pipe is controlled for preventing destruction or cavitation in the upper part of the return pipe.EFFECT: enhanced efficiency of the method of deep-sea mining of mineral resources.12 cl, 1 dwg

Cut for mining and road machines // 2643386
FIELD: mining.SUBSTANCE: cut contains a holder, a head in the form of a body of revolution with a replaceable working part, into which a tip of carbide material is mounted. The length of the replaceable working part of the head is 0.4-0.8 of the length of the head. The replaceable working part of the head is made with an axial cylindrical projection and an annular groove. The head is made with a nest to accommodate an axial protrusion. The head has a through threaded hole in the socket. In the threaded through hole, there is a locking screw that enters the annular groove of the replaceable working part of the head. The head with the slot of the locking screw is buried in the threaded hole. The tip is made in the form of a disk fixed in the axial slot of the replaceable working part of the head on the axis of rotation and equipped with a cutting edge. In the head of the cutting tool, a second seat is provided in which the axial projection of the second exchangeable working part of the head is located. At the side of the second nest solved through the threaded hole in which screwed the second set screw so that it is located in the second nest and placed into the second ring machining second interchangeable head working section. The head with the slot of the locking screw is buried in the threaded hole. At the end of the second replaceable working part of the head, opposite to the axial projection, there is a cone tip made of hard-alloy material. In holder, there is a hole for the cotter pin to lock the cutter in the toolholder channel in regulation matches plane passing through the axis of rotation changeable working parts of the head, cutting plane array. The first replaceable working part of the head with the tip in the form of a disk is placed first in the direction of movement of the tool. The head of the cutter is made tapering in the direction from the holder to the tips to the oval, encompassing the circumference of both replaceable parts and the head.EFFECT: increasing the effectiveness of breaking rock mass.4 dwg
ethod of location of lower boundary of consolidated layer of ridge and hummock based on water melt salt content in thermal electric drilling // 2643376
FIELD: transportation.SUBSTANCE: method involves the implementation of thermal electric drilling of wells in ice. Simultaneously with the drilling, melt water is sucked from the edge of the working part of the heating crown, which is fed through the hose to the ice surface to the salinity meter, and the drilling speed and salinity of the melt water are recorded on the computer or logger. In further processing of the records the drilling speed is compared with the salinity of melt water, taking into account the time of water passing from the well through the hose to the salinity meter. And the drilling speed, corresponding to the transition of a drill rod from dense ice to lose ice or void and which is the closest to the sharp increase in the salinity of water drained due to the large differences in salinity of melt ice and sea water, increases, is determined as the drill rod coming out of the consolidated layer and the depth of location of its lower boundary is recorded.EFFECT: creation of a method for determining the location of the lower boundary of the consolidated layer.1 cl

Hydraulic hammer // 2643244
FIELD: mining; construction.SUBSTANCE: invention relates to mining and construction industries and is aimed at increasing the efficiency of hydraulic hammer production and operation. Hydraulic hammer contains a body with pressure and discharge channels and with reciprocating striker mounted in it for transmitting a force pulse to work tool having pressure channel, overflow channel, drain channel and control channel, and in the upper part of which there is a hole in which the control slide valve is located. Striker forms with the housing a pressure cavity, an overflow cavity for equalizing the fluid pressure and a drain cavity, and the control slide valve is made with three lands, where the diameter of the upper land is greater than the diameter of the lower land, and the middle land is stepped.EFFECT: invention is aimed at increasing the efficiency of hydraulic hammer production and operation.10 cl, 1 dwg
achine for fastening bolts of mining machine roof // 2643053
FIELD: mining.SUBSTANCE: mining machine comprises at least one machine for fastening roof bolts, in which a head for drilling or installing the bolts is provided on the main frame of the mining machine by means of the first and the second bearing frame of the machine. Between the second bearing frame and the support of the bearing element there is a connecting lever, which sets the head for drilling or installing bolts by means of conventional bearing element device. Pivotal attachments between the first and second frames and connecting levers enable moving the head for drilling or installing the bolts both forward and backward, and in lateral directions in so that the mining machine can reach a plurality of different positions for installing the bolts or drilling.EFFECT: reliability, providing movement of the drill head between a plurality of positions.14 cl, 8 dwg
ethod for open-cut mining of mineral deposits // 2642903
FIELD: mining.SUBSTANCE: invention relates to the mining industry, in particular to the development of open-pit mining of flat seams of mineral deposits. Method includes separating the open-cast in plan into plots with the alternating them of working and temporarily non-working plots in the depth of the open-cast, drifting openings to surface along the entire length of the temporarily non-working side section and mating them with the openings to surface of the adjacent section, following development of temporarily non-working plots with a displacement of openings to surface. When open-pit mining, the upper overburden bench is processed using independent mechanic means, then the solids are transported to the mined-out space, the overburden benches that form the loading face are processed according to the transport scheme with the use of vehicles and unloading into outside dump, and the overburden benches formed by temporarily non-working plots and worked out using the non-transport scheme of work, the banks as far as they are developed, starting from the top, and by system of sliding incremental cross-overs are transported to the upper overburden benches in the direction to wash houses or buffer stores, overburden rocks of temporarily non-working plots are stored on the ground in the exhaust dass, forming an inside dump.EFFECT: technical result is a reduction in the amount of work to deposit opening and the duration of the period preceding the beginning of actual mining, as well as minimizing the rehandling factor due to the optimal formation of the dump in the worked out overburden space.1 cl, 6 dwg

ining machine // 2642747
FIELD: mining.SUBSTANCE: mining machine includes a traveling mechanism, a frame, at least one actuating member, cutting device containing cutting units with drives. The traveling mechanism is designed for extending each cutting unit with the drive to required profile of the drift and their shifting by required value. Each cutting unit has a cutting drum and a cutting mill, whose diameter is greater than the diameter of the cutting drum. The cutting drums are arranged coaxially on the shaft and movable along the shaft axis.EFFECT: design simplification.3 cl, 2 dwg

ethod of processing of a cutting site // 2642721
FIELD: mining.SUBSTANCE: method of working out the excavation site includes the excavation of the excavating and ventilating drifts, the chamber mining system, the transportation of the mineral by the conveyor. The excavating drift passes to the middle of the excavation site, then the auxiliary drifts pass at an angle to the excavating drift. The cleaning chambers are worked from the auxiliary drifts. Auxiliary excavation gates pass at an angle of 30-60 degrees to the excavation drift. The cleaning chambers within the excavation site are worked both in the meridional and in the latitudinal direction. The mouth of the cleaning chambers in the latitudinal direction is located diagonally from the mouths of the treatment chambers in the meridional direction.EFFECT: invention reduces the amount of mining preparation works by reducing the length of the extraction, and the face ends of conveyor, enhance security operations.4 cl, 4 dwg

illing machine, crusher of rock fractures for it and system of longwall mining // 2642698
FIELD: mining engineering.SUBSTANCE: machine is located adjacent to a face conveyor for transporting the material, and comprises a chassis, a boom pivotally connected to the chassis, a blade drum for engagement with stope face, while knife drum is mounted for rotation on the boom, and the crusher rock fractures used to trap material on the face conveyor. In this case, the chassis includes a first end and a second end, the chassis being movable in at least a first direction that is substantially parallel to the stope face. The crusher of rock fractures includes an elongated crushing arm having a first end and a second end, the first end being pivotally connected to the chassis about the axis of the lever. The crusher of the rock fractures also includes a number of teeth for crushing the mined material.EFFECT: development of longwall in a compact manner, with a compact crusher.19 cl, 4 dwg
ethod of preventing flooding of potash mine over reef array // 2642610
FIELD: mining.SUBSTANCE: method involves panel-block preparation of reserves and development of sylvinite beds by system of chambers. Prior to mining, seismic exploration is carried out, the boundary of reef array spreading in the subsalt layer and the sections with dip angle of reef array roof more than 2.5 degrees are determined. Then the mining direction of potassium ores is selected so that temporary and permanent boundaries for development of beds together with their alignment of selected sections on the plan are sub perpendicular along the strike of the boundaries of the reef array. In the case of alignment of the development boundaries with reef array sections with roof dip angle more than 2.5 degrees with the non-perpendicular position of mining boundaries and the boundaries of reef array, and in case of stretching deformations in the water-protective layer due to their increase towards rood dip of the reef array, the limits of areas of inactive mining operations are advanced from the boundaries of the reef array by carrying on the development and transferring the area of stretching deformations to compression state.EFFECT: prevention of extreme situations at potassium mine.1 cl
ethod for developing horizontal and lower ore bodies of average capacity // 2642193
FIELD: mining.SUBSTANCE: how to develop horizontal and inclined orebody medium power under-level collapse involves workings: delivery of Horta, drilling entries, separating the ore body, shipping arrivals, dividing into partitions the panel ventilation rebelling, and also capable to cut layers of ore fans wells drilled from drilling entries, onto the clamping medium and the release of the beaten off place ore-face scheme simultaneously through pins and drilling loading races. As the drilling workings, the drifts of the release horizon are used. Capable to cut ore sections, having the form of parallelepiped, exercise ahead of refining of partitions in the center pane, providing a taper-/wedge-in terms of the shape of the front of mining, defines temporary resistance of overlapping rocks above the recoverable partitions and an increase in the release points for ore beaten off the Central Panel, up to three, for the rest of the panels-up to two. The height of the section is assumed to be equal to the thickness of the deposit, the width of the section is assumed to be equal to the width of the panel, which is determined from the average diameter of the ore flow at the end outlet, 8 m, the thickness of the section is taken in accordance with the critical height of the discharge ellipsoid, defined as half of the section height.EFFECT: invention makes it possible to increase the efficiency of the technology by reducing the amount of tunnelling work and achieving high-quality indicators and completeness of extracting ore from the bowels while working out horizontal and gentle deposits with a capacity of 10-15 m.2 cl, 3 dwg

Rock oriented cutting device // 2641679
FIELD: mining.SUBSTANCE: device includes a hollow cylindrical body with radial holes bushing with the bevelled inside edges, sleeve liquid permeable material, filled with loose substance solidified when interacting with the fluid. It is equipped with a second sleeve. The hollow cylindrical body with radial holes is made in the form of a cup which, on the side opposite to its bottom, is inserted with the possibility of longitudinal displacement into the sleeve to radial holes. The bushing from the side free from the mentioned housing is fastened to a pipe string for supplying a working fluid. One of these hoses is wound on the bushing and the second one on the end of the hull free from the bush to the radial holes.EFFECT: increasing the tensile force in the plane orthogonal to the borehole axis and excluding the effect of the device on the rock break force.5 cl, 1 dwg

Bottom of the block with ore vibro outlet // 2641554
FIELD: mining.SUBSTANCE: bottom includes a hauling, ventilating, trenching and loading-and-delivering chambers with chambers of the operator of development. The end of the loading and delivery output is taken out under the trench and their conjugation is formed in the form of an upwardly expanding receiving chamber. Ventilation production is carried out in parallel with a pulling chamber near the end of the operator's chambers above their roof. Ventilation production is supplied with the loading and delivery through the vent wells, which provide the necessary supply of fresh air due to general mine depression. The overlap of the ventilation wells regulates the consumption of fresh air in separate sections and, in general, for the mine workings.EFFECT: improvement of conditions, improving security and productivity in bottom blocks with ore vibro-outlet, ore extraction cost reduction can be achieved by increasing the height of the visor, the rational arrangement of ventilation and it's formulation reliable aerodynamic messages from visitors and cargo delivery works the bottoms.2 cl, 3 dwg
Guiding device in assembly for guiding plough // 2641151
FIELD: agriculture.SUBSTANCE: guiding device in assembly comprises a housing part including: a first guide rail for providing a predetermined direction of the corner plough and extending along a first axis, and a second guide rail spaced from the first guide rail and defining a maintenance space therebetween and extending along the second axis coaxially to the first axis. The guiding assembly additionally comprises a liner inserted into the maintenance space and has a third guide rail extending along the third axis; with the assembled liner, the third axis is aligned with the first and second axes; and a support device capable of supporting and positioning the liner relative to the housing part.EFFECT: increasing the productivity due to reducing maintenance time.15 cl, 10 dwg

ethod for creating additional reserves of water at restoration of peat bogs // 2640829
FIELD: ecology.SUBSTANCE: method contains a structural scheme and includes a storage pond 1 where water from a freshwater source is fed through channel 2, a water outlet 3, ice sites 4, a pumping station 5 connected to a water outlet 3 and an underground pipeline 6 with hydrants 7 and connected to them sprinklers 8, pond-accumulator 9 of freshwater, pond-distributor 10 for supplying water to bogs peateries. For collecting and supplying freshwater, pond-accumulator 9 also includes channel 13, dug along the central longitudinal axis with a bias to collecting place to the pond-distributor 10, and at the end of the channel 13 areaway is made. Storage pond 1, pond-accumulator 9 and pond-distributor 10 are sequentially located in the direction of the main slope of the terrain. Ice sites 4 with pipelines 11 with valves 12 are connected to the storage pond 9. To spray the layer of black material onto the ice mass, a heat-insulating coating is applied of hydrophilic capillary-porous material of the soil or in the form of peat by spraying using natural climatic factors, in particular, under the action of solar radiation, which is intended to accelerate the melting of ice with the transformation into the accumulation of water in summertime. Ponds 1, 9 and 10 are hydraulically connected to each other by pipelines with valves. After the water enters the pond-distributor 10, it is supplied into the open channel 18 to fill the peat bog 17, which is divided into compartments. The compartments of the peat bog are separated by earthen bridges with the water outlets made in them with regulating structures. Thus, this allows creating conditions for the restoration of peat bogs on the cutover bogs.EFFECT: providing an environmental and ameliorative environment more reliably and reducing the risk of emergencies around the cutover bogs.4 cl, 8 dwg

Quarry equipment complex // 2640622
FIELD: mining.SUBSTANCE: complex consists of excavator-loader of rocky soil and crushing-sorting installations, including receiving part of the associated pipelines with drobilnym and sorting equipment, reception part of crushing-sorting the installation is made in the form of loading the module with the bottom in the form of closed-circuit tapes, additional envelope delivered videos to the axis of rotation which are fixed on the side walls, and is fitted with two hydraulic cylinders with spring loaded rods fasteners, which mesh with a Ribbon with the direct course and roam freely in reverse, with the loading module is installed in the mine with an opportunity of reception of the soil of excavator-loader.EFFECT: increasing the productivity of a complex of the quarry equipment at the expense of explosive-waving technology with the constant finding of the equipment in a face.2 dwg

Hydraulic bore mining of minerals // 2640611
FIELD: mining.SUBSTANCE: hydraulic bore mining of minerals includes drilling of technological wells, placement of hydraulic seals and pressure pipelines in them, erosion of the productive formation. The erosion of the productive formation is carried out in the direction from the side of the split trench to the outlet to the surface. Mining is formed, the stability of its arch is determined by the parameters of erosion along the width and height of the reservoir and the physical and mechanical properties of the rocks being developed. The pulp is delivered to the pulp-receiving ditch through the formed rock mine in the gravity-flowing regime.EFFECT: increased productivity of the process of minerals mining.2 cl, 4 dwg

Water thermodrill for drilling wells in ice bodies // 2640605
FIELD: machine engineering.SUBSTANCE: device contains a hollow body in the form of a pipe, to the upper end of which is attached a drill hose, supplying a hot water to the body, a drill bit is attached to the lower end of the body. The drill bit consists of a tip and a bush. The tip has a small parabolic sharpening about one centimetre in length from the outside and a conical bore inside. The bush with an axial hole along its entire length has a conical groove outside at the bottom and a conical groove inside, on the outside of the conical surface of the bush the rectangular grooves are cut in the form of thread. The tip is attached to the body by means of a thread. The bush is mounted coaxially in the tip. The conical surface of the bush enters the cone hole of the tip so that their ends are flush at the same level, while the grooves on the conical surface of the bush form channels for discharging water from the bit in the form of spread, swirling jets. The bush is pressed against the tip by means of a spring held in place by a nut screwed into the upper part of the tip and has a free move upward with increasing clearance between its outer conical surface and the inner conical surface of the tip.EFFECT: sensitivity is increased to determine the position of the boundaries and the dimensions of voids in ice piles while maintaining a high drilling speed.2 cl, 3 dwg

ethod of water encroachment of peatbogs, preeminently of cutover peats // 2640278
FIELD: construction.SUBSTANCE: water encroachment of cutover peats is made as a constructive scheme, including reservoir 1, accumulating water from local runoff, retaining and regulating structures 2 located at the inlet to bypass channel 3, and below main pipeline 4 with closures 5-7. The main pipeline 4 is connected to the ring channels 8, which are connected to each other by means of the water discharge structures 9 with the closures 10-12. Ring channels 8 are made as fenced side walls, made of material in the form of planed boards 13 with slots between them on the one side, and on the other side (the outer side), annular water-retaining dams 14 are made. The dams 14 are poured from the local soil of the peatbog and they serve as a road for moving light motor vehicles on it. Conductive ring channels 8 are made inclined, allowing water to be transferred in a circular manner to fill the encroached area with water. The conducting ring channels 8 are laid with a distance increasing from the center of the cutover peat to the periphery.EFFECT: design will improve the efficiency of local runoff for encroachment of the whole massif, to resume the marshes to their initial approach, the peat deposit with aquatic vegetation, reduce the energy costs for encroachment the cutover peats and improve the ecological situation, and has the ability to manage the differentiated flooding of each section of the cutover peat.3 cl, 1 dwg

ethod for mining inclined ore bodies // 2638995
FIELD: mining.SUBSTANCE: proposed method for mining inclined ore bodies in upward order comprises filling mined space with rock blocks, ore discharge area through trench bottom-cut in confined isolated space. A distinctive feature of method lies in mining of next panel in confined space limited by rock blocks cut in hanging block. The cutting the rock block from the hanging side above the mined panel is carried out simultaneously with blasting of ore in the panel, landing of this block is carried out by means discharge area for blasted panel ore through the trench bottom-cut, at that the inclination angle of rock block sliding plane varies within the limits from the vertical angle the angle of natural slope of blasted ore.EFFECT: possibility of application the method for mining inclined ore bodies with inclination angle 20-45 degrees and providing complete extraction of blasted ore without dilution in confined space, previously isolated by placed rock blocks, with discharge of ore to the trench bottom-cut.2 dwg

ethod of driving raises // 2638992
FIELD: mining engineering.SUBSTANCE: method of driving the raise includes preliminary slotting along raise contour over entire height and subsequent crushing of rock array separated from rock mass by blast method. The raise shape is made in the form of a truncated pyramid with a larger base downwards, holes are drilled along side faces and ribs of the pyramid and explosive charges positioned therein are blasted simultaneously, forming a slit along the raise contour. The block of rock separated from the rock array in the rise contours is crushed by the explosion of charges charged into the holes drilled near raise axis. Initiation of said charges by means of short-delay blasting is carried out after formation of contour slit during falling of the separated rock block. The holes charged along the raise contour are alternated with non-chargeable ones.EFFECT: invention makes it possible to reduce the volume of holes drilling for development and provide reliability of raise formation over entire predetermined height per one blast.2 cl, 5 dwg

Pneumatic shock mechanism // 2638603
FIELD: construction.SUBSTANCE: shock mechanism consists of a cylindrical body with final channels, circular flange with central through hole, working tool with a shank, step hammer with a rod part, a bar with a rod part, installed in the central hole of the circular flange, permanently based in the central through hole of the step hammer, a circular chamber of a pneumatic buffer (working stroke), a sleeve of the cylindrical body with a hole for the passage of the rod part and forming on the side of the circular chamber of the pneumatic buffer (working stroke) a ring nip, restricting the travel value of the hammer, a nozzle with a channel for feeding air, fixed relatively to the cylindrical body, a circular distributing chamber in the sleeve of the cylindrical body, a network air chamber on the side of the circular flange, idle movement chamber on the side of the shank of the working tool, held by a spring against the cylindrical body. On the lateral surface of the rod part of the bar an inclined flattened channel is made with a curvature surface of higher than the second order, providing changing through passage cross-section, increasing from the full diameter size of the rod part of the bar before it ends on the face of the step hammer, installed in the central through hole.EFFECT: reduction of local airflow resistance at the inlet, reduction of the cycle time, increase in the utilization factor of the internal energy of the air, and the cost-effectiveness of the pneumatic shock mechanism.3 dwg

Air hammer // 2637682
FIELD: construction.SUBSTANCE: air hammer includes an air hammer mechanism of a throttle-valveless type, comprising a working tool with a shank, a cylindrical housing, a cup with a channel for supplying air from the circuit, fixed detachably relative to the housing, an annular flange with a central opening, an end pre-chamber formed between the cup and the annular flange, a striker with a through axial hole, disposed in the housing and separating the housing cavity into a working stroke chamber and an idling chamber, a rod-tube mounted in the central opening of the annular flange, passed through the central opening in the cup and fixed relative to the cup itself, a groove in the idling chamber, a radial release channel in the rod-tube with the channel continuation in the form of a longitudinal axial channel opening into the atmosphere and opened by the striker end from the shank side of the working tool. An annular accumulation chamber is formed between the cup and the cylindrical housing. The annular flange is equipped with a sidewall and a radial bypass channel formed therein, continuously communicating the end pre-chamber with the annular accumulation chamber. In the working stroke chamber of the annular flange side, an annular chamber of a pneumatic buffer and an annular power augmentation chamber are made in the form of annular recesses separated by an annular bead. In the housing wall, at the level of the recess of the annular power augmentation chamber, through-pass radial power augmentation channels are made, constantly communicating the annular accumulation chamber with the annular power augmentation chamber. The lateral rod-tube surface is equipped with a bypass channel in the form of a channel-flat with a cutting edge on the side of the annular flange, so that the bypass channel inlet on the side of the working stroke chamber is made at the level of the annular bead separating the annular chamber of the pneumatic buffer and the annular power augmentation chamber.EFFECT: increasing the momentum of the pressure forces for the striker acceleration, both during the idling and the working stroke, increasing the kinetic energy of the striker with its subsequent transmission to the working tool shank.1 dwg

ethod for open pit mining of mineral deposits // 2637667
FIELD: mining.SUBSTANCE: method for open pit mining of mineral deposits includes construction of open pit of first stage to entire depth of pool development, arrangement of overburden rocks from the open pit of first stage into outer pile, separation of the open pit field into face and dump portions, placement of overburden rocks with subsequent extraction of the deposit to the inner dump. According to invention, the face portion of the open pit field is mined by inclined active benches, dump portion of the open pit field is formed by inclined dump tiers. The inclination of active benches and the inclination of dump tiers are performed in opposite directions, and haulage communication between said active benches and dump tiers is carried out along horizontal transport berms made along the strike of deposit along the edges of the open pit field.EFFECT: providing cyclicity of mining operations, uniform loading on personnel and equipment when developing the deposit.7 dwg

ethod for development of peat deposits // 2637346
FIELD: mining.SUBSTANCE: in the method, the extraction area is divided into adjacent even-numbered and odd- numbered parallel entries with width equal to the distance between the tracks of the mining complex, and the length equal to the length of extraction area in near-contour part of the deposit, but not less than 50 m and not more than 100 m, starting from the first odd-numbered stage up to the last odd-numbered stage. After restoring the surface vegetable layer on the even-numbered entries of the bearing capacity which is sufficient for movement of the mining complex with its support thereon, the extraction of odd-numbered entries is carried out in retreat order. When the mining complex is moved from the boundary of the deposit into the depth (direct movement of the complex), the extraction of lump peat is performed from upper cohesive layer by auger device with packing and transportation of packs by means of rope conveyer to the pile located behind the deposit contour. At that, the length of the pile is not more than the width of the extraction area. The extraction of peat from the lower watered layer with formation of peat pulp is carried out in the reverse movement of the mining complex by a mechanic and hydraulic method with hydraulic transportation of pulp via the pulp line into geotextile water-separating containers located the process zone behind the deposit contour.EFFECT: reduced costs for preparation and development of the deposit, increased recovery factor of mineral, elimination of costs for reclamation of the deposit after peat extraction.1 dwg

ethod for bed preparation with stable rock in immediate back // 2636992
FIELD: mining.SUBSTANCE: method for bed preparation with stable rock in immediate back includes driving of production and ventilation drifts. Transportation of ore is carried out by a conveyer located in extraction drift. The extraction of minerals is performed by chamber system with extraction of block in retreat order. In the middle of the section the production and ventilation drifts are parallel to each other. At that they are periodically connected to each other by brake throughs in which the ventilation bulkheads are installed. The ventilation drift extends from production drift at a distance to exclude their mutual influence. The preparation scheme is applicable for two-bed mining.EFFECT: invention makes it possible to reduce time for preparation of block for mining, increase development rate.2 cl, 2 dwg

Steep incline conveyor unit for open working // 2636634
FIELD: mining engineering.SUBSTANCE: steep incline conveyor unit (1) contains a route (14) fixed on an inclined slope (10) of an open working. A first and a second lifting cages (15, 16) are movable along the route (14) between the lower level (12) and the upper level (13). The lifting cages (15, 16) are connected together by a common traction device (17). In the region of the lower level (12) of the route (14), there is a loading device (18) provided for filling the lifting cages (15, 16) with minerals (11) through a loading opening (21) from vehicles (19). The lifting cages (15, 16) comprise an discharge opening (23) located below the loading opening (21). It is possible to unload the minerals (11) from the lifting cages (15, 16) without changing their position through the discharge opening.EFFECT: possibility to load cages with transported mass equal to the load of the feeding vehicle.16 cl, 13 dwg
ethod for hydraulic borehole mining // 2635928
FIELD: mining.SUBSTANCE: method includes drilling a production well, placing a hydraulic recovery unit therein, at that agent-feeding strings in the hydraulic recovery unit and a pulp-lifting pipe of the hydraulic unit in production well are arranged eccentrically with for their independent vertical motion, wherein the pressure water conduit of the hydraulic monitor for hydraulic washing is placed outside the pulp-lifting pipe. The borehole hydraulic mining is carried out by placing the suction tip of the airlift of the hydraulic mining unit at the lower boundary of the production bed, and hydraulic washing is carried out independently by vertical movement of the pressure water conduit of the hydraulic monitor along the entire production ore bed opened by production well, providing its caving with continuous formation of stopping chamber increasing both in diameter and in height with an unstable roof and side walls with constant approximation of hydraulic monitor to the constantly distancing face. The ore falling down to the suction plane is hydroweighted by upward water flow of hydraulic monitor for hydroweighing, the water conduit of which is located inside the pulp-lifting pipe of the hydraulic mining unit, sucked in the suction mode under the bed and lifted by the airlift to the surface.EFFECT: efficient, high performance borehole hydraulic mining of thick flooded deposits with loose rocks non-uniform in strength.3 cl, 2 dwg
ethod for developing mine workings and conducting stoping operations // 2634597
FIELD: mining engineering.SUBSTANCE: method of developing mine workings and conducting stopping operations includes drilling of cut and periphery wells (holes). The operations are carried out in two stages. At the first stage, the cut wells (holes) of depth equal to 1…1.2 of the periphery wells depth (holes) are drilled according to a preset blasting scheme. Then transverse hydraulic fracturing is carried out in rock mass through the cut well (hole), cutting off the blasted block from the main rock mass. Longitudinal hydraulic fracturing is carried out through periphery wells (holes), dividing basic rock mass into blasted blocks with size preset by the blasting scheme. Prior to commencing hydraulic fracturing operations in the cut well (hole), cutting of transversal initiating slit is carried out. Longitudinal initiating slits are cut in periphery wells (holes). At the second stage, after the hydraulic fracturing, explosive charge is set in the drilled wells (holes) according to a structure allowing to blast with reduced impact. The blocks formed by hydraulic fracturing are separated from main rock mass or mechanical impact on the blocks is applied, providing opening of transversal and longitudinal cracks of hydraulic fracturing and breaking possible bridges therebetween. The blocks blasted in the result of explosion or mechanical impact are transported along the workings to surface.EFFECT: reduced volume of drilling work, reduced amount of explosive used.1 dwg

Device for well hydraulic mining of minerals // 2634466
FIELD: mining engineering.SUBSTANCE: device comprising a water conduit located in an inclined well, a wall with a port, in which a tail part of a rotating hydro-monitor is fixed for forming a face in the form of a semi-circle with a given radius R in section perpendicular to well axis, a support and a rotator, according to the invention, the tail part of the rotating hydraulic monitor is provided with a flexible branch pipe which is inserted into the rotator mounted at the end of the water so as to allow rotation of the hydraulic monitor with flexible pipe around the end of the water conduit and around the axis of the wall with the port with a variable radius RD depending on the change of the given radius R of the half-circumference of the face.EFFECT: expansion of the jet coverage area using a single hydro-monitor and significant increase in the volume of mineral produced from each well.2 cl, 5 dwg, 1 tbl

Device for determining poisson factors and transverse deformations of fragments of crushed rock array and evaluating their compressibility in array // 2634312
FIELD: mining engineering.SUBSTANCE: device comprises a frame of sidewalls, beams and stand connected to a closed circuit, a beam installed in the center of the frame, and loading mechanisms. The loading mechanisms are made in the form of vertical and horizontal hydraulic jacks with dynamometers installed leaning against the beam mounted in the frame center and the frame stand, respectively, it is also provided with a plate which is installed horizontally on the surface of the array of crushed rocks and connected by strings with instrumentation for registering vertical deformation of the array, a carriage mounted on the plate configured for horizontal movement, inside which a compression ring with a stamp is fixed. A second horizontal plate, a second carriage on ball bearings, a hydraulic jack and a dynamometer are arranged in series on the stamp of the compression ring and connected to the central beam of the frame, wherein the stamp is connected to instrumentation for registration of its movements.EFFECT: increased efficiency and reliability for determination of Poisson factors and transverse deformation of fragments of crushed rock array and compressibility of rock in the array.2 dwg

ethod development of complex coal deposits // 2634152
FIELD: mining engineering.SUBSTANCE: method involves creating required concentration of stresses by adjusting cutting force in a processing zone and forming breaking zones in the surface layer of the processed array with the help of cutting tools of the working tool of a shearer depending on rock strength characteristics, forming breaking zones considering strength characteristics of across the width of the processed surface. Selective development is performed providing reduction of coal regrinding by increasing spacing of coal cutting tools installation relative to spacing of rock cutting tools by two times. Rotation of cutting tools with discs is carried out in one side by rotation of shafts, on one end of which gears are installed which interact with hydraulic motor through a reducer, and fixing discs with the cutting tools in operation position automatically by stops.EFFECT: increased performance, reliability and expanded process efficiency of rock breaking with different degree of strength and adhesion, environmental efficiency.4 dwg
 
2551168.
Up!