Method of loading rock mass in dump trucks and complex for loading
SUBSTANCE: invention relates to the mining industry and can be used mainly for loading the rock mass in the dump trucks in the implementation of continuous operation of miners. The method comprises implementation of independent processes of positioning hoppers, which occurs simultaneously with the working process of the miner in the automation of the process of orientation of the complex for loading relative to the miner, and the dump truck - relative to the complex. Implementation of independent processes of location of the hoppers is carried out by moving the frames of the hoppers in a vertical plane and the hopper carriages - in the horizontal plane and is controlled by the vertical movement mechanism and horizontal movement mechanism. At that the hoppers by means of articulated linkages with carriages are pivotable in a vertical plane by means of telescopic mechanisms of rotation. The hopper frames when moving interact by sliding bearings with vertical guides. The complex is equipped with vertical guides of the frame of the modules, which interact with the sliding bearings of the frames of the hoppers, the mechanisms of vertical movement connected with sliding bearings, the mechanisms of horizontal movement, mounted on the frames of the hoppers and connected to the hopper carriages for positioning the hoppers in the horizontal plane, and telescopic mechanisms of rotation of the hoppers in a vertical plane relative to the hinge connections, the system of automatic control of mechanisms of the complex functioning. The complex also is equipped with positioning sensors mounted on the frame of the complex and connected to the automatic control system, and to control loading the hoppers with rock mass on the bottoms of the hoppers the control sensors are placed. At that the automatic control system comprises a microprocessor with a control unit, a control panel of hydraulic system and electric generator.
EFFECT: improvement of the process efficiency of the complex operation for loading of the rock mass in the dump trucks.
2 cl, 2 dwg
The invention relates to the mining industry and can be used mainly for loading rock mass on dump trucks in the implementation of continuous work surface miners.
A device for continuous loading of railway wagons mountain mass when working with the mining machine of continuous operation, comprising a frame on which are mounted rotatable funnel with the transfer sleeve and the valve material flow. In operation, the device is suspended from the conveyor the conveyor, for example, a rotary excavator .
This device has functional limitations to work with career harvesters and cannot be used to work with them.
Known self-propelled hopper for loading trucks . Self-propelled hopper includes a portal to the road trucks, running bunker capacity of the valve, the loading device made in the form of a funnel. The material in the hoppers passes through the receiving funnel and open the shutter. When filling the hopper tank to the specified level, the sensor activates and the material flow is directed to the filling of the second bunker.
Self-propelled hopper has a large number of transmission mechanisms that limit the reliability of continuous operation of the structure.
Well-known boot is a device for loading of a dump truck and complex for loading dump trucks [3-4]. Boot device  contains a frame mounted on it, a hopper, a shutter with movable plates and the actuator for closing and opening. The opening of the shutter is carried out by exposure of the body of the truck on the bracket shutter, when driving the truck back, the body is filled with rocks. After filling out the body of the dump truck goes forward from under the boot device and the shutter is automatically closed. The boot device is self-propelled and moves from place to place on the sled.
The closest in technical essence is complex for loading dump trucks , which involves two identical boot module with the possibility of permutation and filing them in the rock mass by means of an excavator. Bins installed on the frames, the capacity of which corresponds to the capacity of the used trucks.
This complex is for loading dump trucks are not able to perform the task of loading rock mass during the continuous operation of the combine because of the design (no drive movement of the modules of the complex) and functional (automatic continuous following excavation machine) features of the complex, including the positioning of the bins relative to the boot device of the harvester. For the filling height of the boot device is tion will require increasing the length of standard conveyors career harvesters, that will lead to increase of weight, dimensions and cost harvesters . When turning the console line from one of the load module to another will need to stop the combine, therefore, appears downtime and reduced productivity.
The technical result consists in increasing the technological efficiency of the complex, engaged in automatic mode the combination of processes of positioning one of the bins for loading the dump truck with the positioning of another hopper for loading with conveyor career harvester during the stroke of career combine with the provision of uninterrupted, without downtime functioning career harvester. Both bins are located in the same module, the sequential loading conveyor career combine the bins are lowered and the height of the top edge of the enable loading conveyor. The sequential unloading bins using hydromechanical raised, rotated and moved longitudinally, providing uniform loading dumptruck body.
The technical result is achieved in that in the method of loading rock mass on dump trucks, including the possibility of movement of the modules with bunkers and supply of rock mass in bins with a capacity corresponding to the capacity of COI is lsemaj trucks, the independent processes of positioning one of the bins for loading the dump truck with the positioning of another hopper under load, independent of the processes of positioning of bunkers occurs simultaneously with the process of career harvester in the automation of process orientation system for loading a relatively career harvester and truck is a relatively complex for loading, and the implementation of independent processes positioning of bunkers occurs by moving frames of bins in the vertical plane and carriages of the hopper in a horizontal plane and is controlled by mechanisms of vertical movement and horizontal movement mechanisms, and the bins by means of articulated links with carriages have the ability to rotate in a vertical plane with telescopic mechanisms of rotation, and the frame of the bunkers when you move enter into interaction through bearings with vertical guides.
System for loading, containing situated in the bottom of the modules with the possibility of movement and supply of rock in installed on the frames bins with a capacity corresponding to the capacity of the used dump trucks, including about the provisions of the independent processes of positioning one of the bins for loading the dump truck with the positioning of another hopper for loading, provided with vertical guides of the frame modules, in cooperation with which includes a sliding support frames bins, mechanisms for vertical movement associated with the supports slip, horizontal movement mechanisms mounted on the frames bins and associated with the cart bins for positioning of bins in the horizontal plane, and telescopic mechanisms of rotation of the bins in the vertical plane relative to the hinge connections, automatic control mechanisms of functioning of the complex for automation of the process orientation of the complex relative to the career of the harvester and the truck in the process of moving when working career combine the complex is equipped with positioning sensors mounted on the frame of the complex and connected with the automatic control system, and to control loading of bunkers rocks on the bottoms of the bins placed sensors, with automatic control system includes a microprocessor control unit, the control panel hydraulic and electric generator.
The possibility of the formation of the desired sequence of executable actions proposed tools can solve the task, determines the novelty, industrial applicability and izobretatel the ski level of development.
System for loading shown on the drawings.
Figure 1 - General view of the system for loading, where the front bunker depicted in primary, lower position for loading rock mass on conveyor, and the rear hopper is in the raised position after loading conveyor (not start) for more specific guidance positions related thereto; figure 2 is a top view of figure 1.
Complex 1 for loading contains one General frame module 2 both modules 3, 4. Modules 3, 4 frames contain bins 5, 6, installed on the carriage 7, 8. Carriage 7, 8 with adjustable links 9, 10 connected to the hoppers 11, 12 with a capacity corresponding to the capacity of the used trucks. Sliding support 13 frames bins 5, 6 are connected with the vertical movement mechanisms 14 and enter into interaction with vertical guides 15 of the frame modules 2. Mechanisms of horizontal movement 16 is installed on the frames bins 5, 6, and connected with the carriages 7, 8 for positioning the hoppers 11, 12 in the horizontal plane 17. On the frames bins 5, 6) are fixed telescopic mechanisms of rotation 18 of the hoppers 11, 12 in the vertical plane 19 relative to the hinge connections 9, 10. To automate the process orientation of the complex 1 regarding career harvester 20 and relative to the truck 21 in the process of the move when working career harvester 20 complex 1 is equipped with positioning sensors 22, mounted on the frame 23 of complex 1 and connected with the automatic control system 24 mechanisms of functioning of complex 1. To control loading of the hoppers 11, 12 rocks on the bottoms 25 of the hoppers 11, 12 posted by the sensors 26. Automatic control system 24 includes a microprocessor control unit 27, the control panel hydraulic system 28 and the generator 29. The rock mass is fed into the hoppers 11, 12 by the conveyor 30. Complex 1 is equipped with a buffer 31.
The method of loading rock mass on dump trucks is as follows.
Miner 20 moving along the face, destroying the rock and pipe 30 delivers the rock mass in the hopper 11 of complex 1, which is in the lower position. In the initial position, both of the hoppers 11, 12 are in the lower position. When fully loaded hopper 11 trigger sensors 26 located on the bottom 25, off load. The independent processes of positioning of the bins 11, 12 occurs simultaneously with the process of career harvester 20 when automating the process of orientation of complex 1 for loading of the rock mass obtained with the help of career harvester 20, and the truck 21 is a relatively complex 1. Complex 1 follows the career of the harvester 20, remotely controlled from him through the automatic the Board 24, contains a microprocessor with a control unit 27, the control panel hydraulic system 28 and the generator 29. At this time of the dump truck 21, moving in reverse, rests in the buffer 31 of complex 1, the sensor 22 located on the frame 23, the command for loading rock mass in the dump truck 21. At this time, the conveyor 30 career harvester 20, loading hopper 11, is moved to position above the hopper 12 module 4, which is in the lowest position. Download the hopper 12. At this time, module 3, including the frame of the hopper 5 and the hopper 11, with bearings 13, which are in engagement with the vertical guides 15 of the frame modules 2, is moved in the vertical plane, the vertical movement mechanisms 14. When the frame of the hopper 5 module 3 reaches its extreme upper position, the carriage 7 of the hopper 11 by using the horizontal movement mechanism 16 is shifted to the side of the truck 21 for positioning the hopper 11 in a horizontal plane 17 at the desired distance from the truck 21 and through the hinge connection 10 with the carriage 7 and telescopic rotation mechanism 18 is rotated in the vertical plane 19 to load the truck 21. The dump truck 21 is loaded. Then the hopper 11 is moved to the original lower position. After loading the hopper 12, the conveyor 30 is Itinerants above the hopper 11, and module 4, including a frame of the hopper 6, with bearings 13, which are in engagement with the vertical guides 15 of the frame modules 2, is moved in the vertical plane, the vertical movement mechanisms 14. When the frame of the hopper 6 module 4 reaches its extreme upper position, the carriage 8 of the hopper 12 by using the horizontal movement mechanism 16 is shifted to the side of the truck 21 for positioning the hopper 12 in a horizontal plane 17 at the desired distance from the truck 21 and through the hinge connection 9 with the carriage 8 and telescopic rotation mechanism 18 is rotated in the vertical plane 19 to load the next truck 21.
The proposed method of loading rock mass on dump trucks through complex for loading helps to ensure the continuity of career harvester and overload of the rock mass. Kinematic scheme of moving bins allows loading them in the lower position available on the career combines conveyors and unstressed and evenly to load dump trucks.
Sources of information
1. USSR author's certificate No. 549393 from 05.03.1977. Device for the continuous loading of railway wagons.
2. USSR author's certificate No. 625993 from 30.09.1978. Self-propelled hopper of the La loading trucks.
3. RF patent №2257330 from 27.07.2005. Loading device for loading of a dump truck.
4. RF patent №2272144 from 20.03.2006. Complex for loading dump trucks.
5. Pichler M, Pankevich SHE Some technological features of work units of the Wirtgen Surface Miner at open-pit Gorn. - 2005. No. 1. - P.36-39.
1. The method of loading rock mass on dump trucks, including the possibility of movement of the modules with bunkers and supply of rock mass in bins with a capacity corresponding to the capacity of used trucks, independent processes positioning of one of the hoppers for loading the dump truck with the positioning of another hopper under the load, characterized in that the independent processes of positioning of bunkers occurs simultaneously with the process of career harvester in the automation of process orientation system for loading a relatively career harvester and truck is a relatively complex for loading, and the implementation of independent processes positioning of bunkers occurs by moving frames of bins in the vertical plane and carriages bins - in the horizontal plane and is controlled by vertical movement mechanisms and mechanisms horizon the social movements, when the bins by means of articulated links with carriages have the ability to rotate in a vertical plane with telescopic mechanisms of rotation, and the frame of the bunkers when you move enter into interaction through bearings with vertical guides.
2. System for loading, containing situated in the bottom of the modules with the possibility of movement and supply of rock in installed on the frames bins with a capacity corresponding to the capacity used trucks, including the provision of independent processes positioning of one of the hoppers for loading the dump truck with the positioning of another hopper under the load, characterized in that provided vertical guide frame modules, in cooperation with which includes a sliding support frames bins, mechanisms for vertical movement associated with the supports slip, horizontal movement mechanisms mounted on the frames bins and associated with the cart bins for positioning of bins in the horizontal plane, and telescopic mechanisms of rotation of the bins in the vertical plane relative to the hinge connections, automatic control mechanisms of functioning of the complex for automation of the orientation process is relatively complex career harvester and relatively dumptruck in the process of moving when working career combine the complex is equipped with positioning sensors, mounted on the frame of the complex and connected with the automatic control system, and to control loading of bunkers rocks on the bottoms of the bins placed sensors, with automatic control system includes a microprocessor control unit, the control panel hydraulic system and generator.
SUBSTANCE: rock loosened by wheel-type miner is dumped by miner discharge arm belt conveyor onto that of self-propelled two-section hopper turn bar. Then, it is dumped into hopper sections rock from under which, with no outage of hopper and miner displacing in synchronism and in parallel, it is dumped cyclically into dump-trucks. Said dump-trucks move along with said hopper at loading.
EFFECT: higher efficiency of mining due to decreased downtime of miners and dump tricks.
2 cl, 2 dwg
FIELD: mining, particularly to perform stripping and mining in pits with 6-8 crushing index.
SUBSTANCE: method involves filling previously created trench with rock loosened with milling machine, wherein loosened rock is poured in the trench from which said rock had been excavated. In the case of conveyer deactivation device usage rock is left in open trench just after rock cutting with milling means. After that rock is scooped with scrapers following pit machine without pit machine stopping.
EFFECT: increased open-pit work efficiency due to decreased milling machine downtime during rock mining.
2 cl, 1 ex, 4 dwg
FIELD: earth-moving equipment, particularly machines for ground cutting, pit excavation for hydraulic structure, large-scale object building, as well as for mineral deposit development.
SUBSTANCE: ditching and transportation rig comprises basic chassis connected with earth-moving module and with transportation-handling devices, which move ground in vertical and horizontal directions. Earth-moving module is made as bucket rotary drum secured by means of vertical and horizontal hinges, as well as control-rods to the basic chassis so that the bucket rotary drum may rotate in vertical and horizontal planes and overhanging length thereof may be changed. Device is provided with continuous-type conveyer unit made as auger system and as telescopic pipe pivotally connected with transportation-handling device, which move ground in horizontal direction. Horizontal auger is located inside bucket rotary drum and is offset with respect to drum axis so that auger axis is parallel to drum axis. The horizontal auger is transversal to inclined auger having lower end installed under outlet end of horizontal auger. Upper end of inclined auger is pivotally fastened to upper telescopic pipe section. Transportation-handling device, which moves ground in horizontal direction, is made as endless band installed on length-adjustable telescopic sliding frame, which may change ground displacement distance by means of tightening rollers. Rollers have pins installed at different heights sliding in telescopic frame grooves. The telescopic frame has flanging. Lower telescopic pipe section is provided with rotary hinge connected to telescopic frame flanging so that rotary hinge may perform longitudinal movement with respect to frame flanging. Transportation-handling device, which provides vertical ground movement is composite and made as continuous-type bucket bands mating each other in transfer points.
EFFECT: increased ability and speed of pit excavation, reduced costs of ground excavation and transportation outside the pit and provision of continuous technological cycle.
2 cl, 8 dwg
SUBSTANCE: method in which the quarry along the length is divided by the lines, of which the first is worked out to a target depth with an external spoil disposal and working out of the subsequent ones is carried out using an internal spoil disposal, placing the overburden in the mined-out space of the adjacent line with the common formation of the dump tiers with the development of mining work. And simultaneously with the start of mining operations in the quarry of the first stage within the quarry of the second stage along the deposits the front quarry is built with angles of the slopes of sides close to the angles of reclamation, the cross-overs are located in it for providing cargo communication of the upper working horizons of the quarry of the first stage with the surface, with the reduction of mining operations in the quarry of the first stage on its longitudinal side the loop cross-overs are made adjacent to the bottom of the quarry in the area of the end side, which is formed with a slope towards the temporary side, marking the limit of the quarries of first and second stage, when achievement in the mining operations in the quarry of the first stage of the current depth. The separation of the sides of the front quarry is carried out, turning them into working, and after complete working out the reserves of the quarry of the first stage the working out the reserves of the quarry of the second stage is carried out, while linking its main openings to the main openings of quarry of the first stage in the locations of the loops, the inner dump in the worked-out area of quarry of the first stage is formed as inclined and horizontal tiers, at first directly with the surface from the side not occupied with main openings, the inclined tier is made with bulldozers with width of the platform on top equal to zero, and then using a draglines it is extended by the amount of boom extension, after this the horizontal tiers are dumped in series from the bottom up from the loop cross-overs with the high ensuring their sustainability, to complete formation of the inner dump.
EFFECT: decrease in the distance of inner transportation of overburden from the working area to the inner dump.
SUBSTANCE: method comprises formation of the working area, technology of mining overburden benches and providing cargo communication of the working horizons to the surface, the overburden benches of the working area are taken of the increased height (25-30 m), based on the condition of their mining using excavators with extended working equipment, the benches are combined into groups of three in each. At that for the upper and lower benches in the groups the minimum working areas are provided with dimensions equal to the width of the transport platforms, providing two-way traffic of technology vehicles and its manoeuvring, for the middle benches the width of the platforms is taken equal to the sum of the width of minimum working area and the width of the recess stope with ready-to-dig volumes of overburden, providing the necessary speed of reduction of mining operations in each group of overburden benches of the working area during the formation of the breakdown of the blasted rock mass based on conditions of placing it on the middle and lower benches. And the breakdown of the rock remaining on the middle benches, is divided into two layers, the upper of which are worked out with excavators with top loading into vehicles that are on the platforms of upper benches, the volumes of the lower layers and volumes of the overburden dumped with explosion on the lower benches are worked out with individual excavators with loading to vehicles at the same level with them. After working out the ready for excavation volumes of overburden in all groups of benches and formation of the corresponding volumes on the adjacent underlying benches and displacement of the boundary of the groups occurring at that down by one bench, their working out is repeated in the above procedure, opening the overburden benches of the working area of is carried out using steep sliding cross-overs with the longitudinal slope of 12-15° and width, providing placement of the breakdown of the blasted rock mass during their extension and at the same time the through passage of the technological transport, the extension of steep cross-overs is carried out using track and wheel loaders by dividing the breakdown of the blasted rock mass to the horizontal and inclined layers with the height defined taking into account the trajectory of motion of the loader bucket.
EFFECT: reduction of current stripping ratio in the initial period of working out of the field.
SUBSTANCE: control method comprises control of the intensity of the high temperature thermodynamic laser irradiation to the area of the laser radiation, regulation of change of the wavefront of the laser radiation, control of milling cutting force P, the parameters of the rock material rigidity f through the registration sensor of the rock material rigidity, mounted on the frame of fibre optic laser emitter, the speed control of movement of the surface miner Vki, introduction to program of algorithm of calculation of the wavefront of laser radiation power W, depending on the parameters of rock material rigidity f and the approach increment of fibre optic emitters li based on the equation.
EFFECT: invention enables to improve the efficiency of management of technological preparation for excavation of rock material and provides remote control of destruction of rock material.
2 cl, 10 dwg
SUBSTANCE: invention relates to the mining industry and can be used in open development of mineral deposits. The method comprises opening the deposit and recovery of mineral deposits with ledges with formation of the inclined surfaces of slopes and pit edges, drilling wells, loading of wells with explosives, breaking of the rock mass with blasting of explosives in units, distributed on the pit ledges, loading and transportation of the rock mass to the sites of its storage or further processing. The location sites and size of rock blocks are determined, hovering on the slopes of the ledges. From the earth's surface or upstream sites of ledges the workers and drilling equipment is descended on the lifelines to the upper surface of the hovering rock block. In the hovering rock block the wells are drilled with the distance between the wells not exceeding the maximum distance equal to the twice depth of distribution in the rock mass in the vicinity of the well of area of the rock destruction that occurs when blasting explosives in the well. The wells are drilled parallel to the surface of the slope of the ledge, and the distance between the wells and the surface of the slope of the ledge is taken as equal to the depth of distribution in the rock mass in the vicinity of the well of area of the rock destruction that occurs when blasting explosives in the well.
EFFECT: improving the safety of open mining operations.
SUBSTANCE: method is performed using the automated system which comprises a laser device with the possibility of longitudinal displacement and is provided with a damper platform placed on the surface miner frame and pivotally connected to the frame of the laser device. The laser device is placed on the frame guides with the ability to move longitudinally along the guides on the rolling bearings using the drive connected with the automatic control unit, and is made in the form of a cassette with fibre-optic emitters placed along the moving direction of the surface miner.
EFFECT: improved technological efficiency due to forming in the surface layer of the processed areas of zones with overlapping of laser slots, providing high concentration of stresses, alternating loads and deformation during laser processing of significant surface; performance improvement of process of destruction, disintegration and decrease in the volume of fraction requiring additional subsequent crushing due to combining the process of cutting slits and layers-strip cutting of rock materials by surface miners, and providing environmental safety.
2 cl, 5 dwg
SUBSTANCE: invention relates to mining and can be used in dredging of valley and floodplain detritus. This method comprises construction of stream diversion channel, service pool for dredge and system of water treatment plants. Stream diversion channel is composed by natural bed in drag bank made at working the deposit in lengthwise direction with earth prism filling to inner slope of dredge bank. Extraction of mineral during stream diversion channel is carried out by asymmetric manoeuvring of dredge to ensure maximum cross-section area of dredge bank. Water level in service pool and water treatment plats is kept level with stream diversion channel water horizon.
EFFECT: higher environmental safety, decreased scope of works.
3 cl, 2 dwg
SUBSTANCE: proposed method comprises drilling the vertical wells, charging the latter, placing the charges, short-delay blasting of said wells and selective excavation. Blasting of blocks is performed in bulk. Note here that all three dimensions of blasted block, i.e. width, length and height, are set irrespective of the position of contacts and the number of ore bodies. After block blasting, portion of shotpile is dumped over slope roof with working of the first pass over rock on the side of ore body hanging side. Depending on attitude of ore body in blasted block, selective working of productive bench is performed in two sub-benches with mining in layers.
EFFECT: decreased losses of ore and ore dilution.
SUBSTANCE: proposed method comprises the steps that follow. Top soil layer is removed to be preserves or to be transferred to territories to be reclaimed, loosening, loading and conveying stripped rock to make the waste dumps, dislodging, loading and coal transfer to storage and reclamation of dumps. Note here that seam weathered coal approaching the day surface is extracted and stored separately. Waste dumps are levelled to apply soil and weathered coal layers thereon. Produced layer is loosened with stripped rock and rolled.
EFFECT: higher efficiency.
SUBSTANCE: proposed method comprises opening of deposit by galleries at quarry unworked edge, working of deposit in blocks with excavation of minerals by chambers, release of crushed mineral to underground openings and bringing it to grass. Note here that deposit is developed by galleries at dividing unworked edge to horizons equal to height of production bench. Charges are laid in gallery blast-holes and wells. Cut opening is produced by blasting blast-hole and well charges of the gallery central group. Rock is excavated and loaded to carries via loading funnels. Blast-hole and well charges are blasted to force the deposit of the gallery flank groups to cut opening. Conical bank of blasted rock is formed, loaded and transported. Deposits of central and two flank directions are developed to isolate prior development zones by quality of mineral stock.
EFFECT: creation of working zone in central and two flank directions at unworked edge at selective working of deposits.
SUBSTANCE: invention relates to mining particularly to openworking of rocks. Zoning is adjusted by registration of changes in thrust and lift engine performances to tie the latter via bucket spatial position in digging cycle for registration of bench bottom quality, granulometric composition and shape of cut rock bulk at transition from near well space to gotten well space. Characteristics of bench bottom working are allowed for by changes in performances of thrust engine at the level of bench bottom. Rock granulometric composition is defined by changes in performances of lift engines at filling and retention of filled bucket. Bulk compactness is defined by changes in performances of lift engine at scooping height registration at transition from gotten near well space to gotten well space.
EFFECT: higher efficiency of zoning and quality of blasting.
FIELD: mining art, in particular, open-pit mining of mineral resources by high benches.
SUBSTANCE: large-diameter single holes are replaced by a pair of divergent holes of a smaller diameter, in which one hole is always vertical, and the other one is inclined towards the bench; the single holes of the larger diameter are replaced with a pair of divergent bundles of parallel converged holes, in which one bundle is vertical, and the other is inclined towards the bench; the single holes of the larger diameter are replaced with a pair of divergent holes of a smaller diameter, in which one hole is vertical, and the other is inclined towards the bench and positioned in the vertical plane parallel with the first one and distant from it by 1-2 hole diameters; the single holes of the larger diameter are replaced by a pair of divergent bundles of parallel converging holes, in which one bundle is vertical, and the other is inclined towards the bench and positioned in the vertical plane parallel with the first one and distant from it by 1-2 hole diameters.
EFFECT: enhanced efficiency of blasting of the benches.
7 cl, 6 dwg
FIELD: mining industry.
SUBSTANCE: method includes dividing quarry on rows, of which first one is extracted to planned depth with external dump-forming, and extraction of following rows is performed with use of internal dump-forming, placing dug rocks to extracted space of adjacent row with common displacement of dump front with development of mining operations. Second and following rows of quarry are divided on basis of height on extraction levels, extraction of uppermost level is performed with placement of dug rocks in upper dump level of extracted space of adjacent row, using surface transporting communication lines, and during extraction of second extractive level dumping of dump level of inner dump is primarily performed by forming pioneer dump at longitudinal processed edge of quarry, on upper area of which transporting lines are placed and dumping of dump level is performed from there, with descent of mining operations in working area of extractive level profile of upper dump area is altered to provided necessary cargo communications of working horizons of extractive level to dump level, after extraction of extractive level remaining pioneer dump is dug to upper mark of following extractive level, and extraction of following extractive levels is performed analogically, using reformed upper area of pioneer dump.
EFFECT: higher efficiency.
FIELD: mining industry.
SUBSTANCE: method includes cutting steps with varying angles. Angles of double step slopes, different on basis of quarry depth, are formed with consideration of decrease of irregularity parameters with deposit depth, with natural block level of upper horizons and influence from mass explosions and wind erosion of rocks with gradual increase of their steepness until forming of vertical slopes of double steps during additional operations in quarry, while angles of slopes and edge portions on upper horizons in highly fractured rocks may be 50-55°, in rocks of average and non-specific fracture levels - 70-60° and in low-fractured rocks may be 80-85°, and edge portions 60-90 m high in deep portion of quarry with vertical double steps and preventive berms 10 m have slant angle 80-85°.
EFFECT: higher efficiency.
6 dwg, 1 tbl, 1 ex
FIELD: mining industry.
SUBSTANCE: method includes extraction of quarry to planned depth with use of quarry ore chutes with accumulating bunkers, cutting ore chutes with deepening of mining in quarry, crushing ore blocks and pieces from face from bunker walls by explosives, loading ore to railway vehicles, cutting and shutting upper portion of ore chutes at each level when mining approaches there is performed by division on beds and semi-shelves with charges in wells, providing for crushing of rock to needed dimensions and safety of mine walls, and further decrease of pieces size and increasing efficiency of ore chute operation by excluding ore suspension is achieved by use of crushing assembly in form of bowl with plate at base, working as anvil under layer of rock, from where ore mass is self-propelled to bunker, and from there by feeder is sent to crusher and further through intermediate conveyer to main conveyer.
EFFECT: higher efficiency.
4 dwg, 1 ex
FIELD: mining industry.
SUBSTANCE: method includes extracting quarry to planned depth by ore and rocks extraction by displacement of shelves along horizons with transferring to crushing plants, crushing rocks and then delivering them by lifting device to the surface, during extraction of quarry to planned depth at first stage during construction of board at the end of quarry in zone of decrease of power of deposit in stable rocks conveyer rope system is constructed, connected to hoisting machine, to bed with recesses, allowing to raise crushed material to large height at steep angle and with deepening of mining and displacement of crushers to lower horizons conveyer system is extended to provide for optimal transport shoulder for gathering vehicles.
EFFECT: higher efficiency, higher productiveness.
2 cl, 6 dwg, 1 ex
FIELD: mining industry.
SUBSTANCE: method includes opening deposit of mineral resource along its length, extraction of opened rocks in shelves, forming on one of the portions of deposit of forward extracted space reaching planned bottom, moving rocks to external dumps and into extracted space, processing and transporting of mineral resource. Deposit extraction is performed in two directions - perpendicularly to length of deposit with deepening and along length to quarry bottom, while volume of extraction of mineral resource along length is increased and volume of extraction of resources perpendicularly to length is proportionally decreased.
EFFECT: higher efficiency.
2 cl, 3 dwg
FIELD: mining industry.
SUBSTANCE: method includes serial extraction of drifts with placement of opened rocks of drifts in extracted space of previous drifts, continuous combined processes of softening, extraction and movement of rock to dump. Drifts are positioned along cut trench, extraction is performed by adjacent horizontal shavings of face area, rock of each drift is moved by throwing directly to extracted space and compacted in range by realization of kinetic energy of rock.
EFFECT: higher efficiency.