Complex for lifting dump-trucks to flank of opencast
FIELD: transport engineering; quarry dump-trucks.
SUBSTANCE: invention relates to devices for lifting and lowering dump-trucks, namely, to complexes for lifting and lower dump-trucks at opencast mining. Proposed device for lifting dump-truck to flank of opencast contains, in addition to lifting line, lowering line parallel to lifting line, both lines being coupled by drive sprockets in head and middle parts of both lines. Each gripping device for gripping and transporting of dump-trucks up and down is made in form twin levers with rollers hinge-connected two leaf-and-roller chains and arranged in between to provide movement of roller along guides. Platform is secured on levers to arranged rear wheels of dumps-truck on lifting line and front wheels, on lowering line. Platform is arranged with clearances over tracks and on lifting line it is provided with curvilinear stop from side of tension sprocket for engagement with rear wheel of dump-truck, and on lowering line it is provided with two stops for arrangement of front wheels of dump-truck between the stops. Tracks on inclined sections are arranged to move front wheels on lifting line and rear wheels on lowering line at horizontal position of dump-trucks. Lips are arranged in opencast and on its flank in zones of entry of dump-trucks on lifting line and lowering line over tension and drive sprockets, and guides for traction chains and rollers of levers are made curvilinear to provide free getting of dump-truck wheels onto tracks.
EFFECT: provisions of lifting of loaded dump-trucks to flank of opencast and simultaneous lowering of empty-trucks into opencast at continuous transportation and reduced to minimum metal usage and energy consumption when carrying out said operation.
3 cl, 6 dwg
The invention relates to systems career of transport, and in particular to systems for ascent and descent of trucks in the quarry in the conduct of surface mining.
The known device for lifting railway wagons and trucks on Board career and their descent into the pit containing the trolley on wheels with the possibility of placing rolling stock and move on inclined rails, ropes, ropes around the blocks, the balances on the go rail, drives pulleys (Demidov J.V., Trubetskoy, NICHOLAS, S. Naumov Use of inclined lifts for transportation of lumpy rock mass in deep pits inside the Arctic circle. Mining journal, No. 7, 1998, pp.42-453).
However, the disadvantages of the known devices are limited in performance caused by the cyclical nature of the work, the design complexity, high specific intensity and energy transportation of rock from the quarry.
Known groovitude vertically closed conveyor (prototype)containing plate-roller traction chain with the possibility of rounding it to the drive and idler sprockets and move the driving rollers of the chain guides, consisting of a slope and the adjacent horizontal sections in the lower and upper parts of the conveyor, the chain is a certain step pinned fists with the possibility of their interaction with the transported during the Assembly of cars, moved on its own wheels on special tracks placed with the outer sides of the rails running rollers (Spivakovsky S.A., Dyachkov VK Transporting machines, Meters, machinery, 1968, s-312, RIS, b).
A disadvantage of the known groovepusher pipeline is the inability transportation of loaded trucks on Board career due to unloading of the rock mass from the body of a dump truck at a substantial angle of inclination of the route of transportation and the increase of metal and energy consumption while lowering trucks in the quarry.
The technical result of the invention is the provision of lifting the loaded trucks from the quarry on the Board of career and simultaneous descent of empty cars trucks in the quarry during the continuous mode of transportation and to minimize the indicators of metal and energy when performing these operations.
The technical result is achieved by the fact that in the complex for lifting cars, trucks aboard career, containing the line vertically with the closed plate-Katkova traction chain with rounding it is connected with the gearbox and the engine drive sprocket and idler sprockets to move the driving rollers of the chain guides, consisting of a slope and when akaushi to him horizontal sections in the lower and upper parts of the complex, while on the circuit with a certain step fixed devices to capture and transportation of trucks to move their wheels in special ways, according to the invention, parallel to the line for lift trucks placed the line for their descent into the pit with kinematically connected between a drive sprocket in the head and middle parts of the two lines, and each device for the capture and transportation of cars, trucks up and down made in the form of a hinge attached to the two plate-Katkov circuits and placed between the double levers with rollers at the free ends can be rotated dual levers in the vertical plane and moving the rollers along the guide rails positioned below the guide for the driving rollers of the traction chains, with dual levers are interconnected by a platform with the ability to place on it the rear wheels of a dump truck on the line of lift and the front wheels in line of descent, sites hosted with clearances above the tracks, with each pad in the line of ascent is made with a curved stop by idler sprockets with the possibility of its interaction with the rear wheels of a dump truck, and on the line of descent is made with two stops can accommodate between them the front the Oles of a dump truck, in this way on sloping areas posted with movement of the front wheels in the line of ascent and rear wheels on the line of descent at a horizontal arrangement of cars, trucks, and career and on Board in the areas of entry of trucks in the line of ascent and descent over the idler and drive sprockets placed visors, and guides for traction chain rollers and levers are made curvilinear with the possibility of providing free check-in of the wheels of trucks on the road. The kinematic connection between the drive sprockets of the two lines can be made in the form associated with the motor gear, low speed shaft which is directly connected with the shaft of the drive sprocket of the line of ascent through the gear pair with shaft drive sprocket line of descent cars, trucks. Its final drive ratio of the kinematic connection between the drive sprockets of the two lines can be made equal to one.
System for lifting trucks on Board career presented on figure 1 - side view on the line lifting, figure 2 - plan of the complex, figure 3 - site supporting the rear wheels of a dump truck attached to the traction circuit area srig - view And figure 3, figure 5 - placement of a loaded car-truck on a slope line rise, 6-node in an empty car-truck on the line of descent.
System for lifting trucks on the turnover of the quarry contains line 1 for lifting the loaded trucks 2 Board 3 career 4 and placed parallel to her line 5 for the descent of empty trucks 6 in pit 4. Line 1 for lifting and line 5 for descent consist of two vertically closed plate-matkovich traction chains 7 and 8 with the possibility of rounding them drive sprockets 9 and 10 and idler sprockets 11 and 12 with the movement of the driving rollers 13 and 14 of the traction chains 7 and 8 along the guide rails 15 and 16. Each line 1, 5 consists of inclined sections 17 and 18 and the adjacent horizontal sections 19 and 20 in the lower part of the complex and horizontal sections 21 and 22 in the upper part of the complex. On the chains 7 and 8 each of lines 1 and 5 with a certain step fixed devices to capture and transportation of cars, trucks 2 and 6. These fixtures are made in the form of a hinge (23 and 24) attached to the two plate-Katkov circuits 7 - line 1 and the plate-Katkov traction circuits 8 - on line 5 and placed between the double levers 25 and 26 with the rollers 27 and 28 at the free ends. Dual levers 25 and 26 are installed with the possibility of rotation in the vertical plane and move the rollers 27 and 28 along the guide rails 29 and 30 placed under the guides 15 and 16 for the driving rollers 13 and 14 of the traction chains 7 and 8. Dual is s the levers 25 and 26 are interconnected pads 31 and 32 with the possibility of placing on the platform 31 of the rear wheels 33 loaded car-truck 2 on line 1 of lift and the front wheels 34 empty car-truck 6 - on line 5 of descent. The platform 31 and 32 are placed with a gap of 35 above the tracks 36 and 37. Each pad 31 on line 1 of the ascent is made with a curved stop 38 by idler sprockets 11 with the possibility of its interaction with the rear wheels 33 of a dump truck 2. Each pad 32 on line 5 of the descent is made with two lugs 39 and 40 can accommodate between them the front wheels 34 empty car-truck 6. When this path 36 and 37 on sloping areas 17 and 18 are placed with the possibility of movement of the front wheels 41 loaded trucks 2 on line 1 lift and rear wheels 42 of empty trucks 6 on line 5 of descent at the horizontal location of the trucks 2 and 6. Career 4 and on Board 3 in the zone of entry of the trucks 2 and 6 on lines 1 and 5 of ascent and descent over idler sprockets 11, 12 and driven sprockets 9 and 10 placed visors 43 and 44, and the guides 15, 16 for traction circuits 7, 8 and guides 29, 30 with the rollers 27, 28 dual levers 25 and 26 are made curvilinear with the possibility of providing free check-in of the rear wheels 33 Laden trucks 2 and the front wheels 34 of empty trucks 6 on path 36 and 37. The drive sprocket 9 and 10 provided with a common drive consisting of a motor 45 and gear 46, the low speed shaft which is directly connected with VA the ω chain sprocket 9 line 1 lift and through the gear pair 47 - with shaft drive sprocket 10 line 5 shutter trucks. Its final drive ratio toothed gear 47 may be taken equal to unity. Lines 1 and 5 provided with an intermediate drive sprockets 48 and 49, which are also kinematically linked with General motor 50 with gear 51 and the gear pair 52. On line 5 of descent can be set to a smaller number of intermediate sprockets 49, than the intermediate sprocket 48 on line 1 lifting. 53 and 54 of the direction of movement of loaded 2 and empty 6 cars, trucks when they are climbing on Board 3 and the descent into the pit 4.
The complex operates as follows.
When turning on the motors 45 and 50 torque from them is transmitted through gears 46 and 51 on the upper drive 9 and the intermediate drive sprocket 48 line lift 1, and through the toothed gear 47 and 52 on the top drive 10 and the intermediate sprocket 49 line 5 of descent. Due to this, the upper branch of the traction chains 7 start continuously move in the direction 53 (upward), and the upper branches of the traction chains 8 to move in the direction 54 (down). Each loaded car-truck 2, located in the career 4, through the visor 43 moves to the horizontal section 19 of the path 36 and stops. With continuous movement of the traction chains 7 the next platform 31 runs onto the rear wheel 33 of a dump truck 2 and its stop 38 when the result of the car-truck 2 in motion. Its front wheels 41 first move in the horizontal section 19 of the path 36, and then move on to its curvilinear section 17 (1 and 5). Therefore, the loaded car-truck 2 remains in a horizontal position at all inclined section 17 of the lift. The platform 31 is transmitted to the load only on the rear wheels 33, and the load of the front wheels 41 is passed directly to the path 36. After climbing to the top horizontal section 21 of the loaded car-truck 2 its course through the visor 44 travels on Board 3 career 4, and the space 36, turning on a curved section of the guides 29 through interacting with them rollers 27, under the visor 44 together with traction chain 7 around the drive sprocket 9 and moves to the lower branch and moves down. At the same time on Board 3 career 4 rise several loaded trucks 2 with the interval defined by the adopted distance between adjacent pads 31.
Similarly empty cars-trucks with 6 visor 44 Board 3 career 4 drive its front wheels 34 on path 37 and stop. With continuous movement of the traction chains 8 the next platform 32 is suitable due to the curved guide 30 with the rollers 28 to the front wheel 34 of empty car-truck 6 and moves it in the direction 54 (Fig). Due to the curved shape of the guide 30 when driving on them rollers 28 space 32 turns counterclockwise, and the front wheels 34 are fixed between the lugs 39 and 40. Due to the curved path 37 on the transition from the horizontal part 22 to the inclined section 18 and the removal path 37 from the upper branches of the traction chains 8 when moving along the inclined section 18 of empty cars-trucks 6 all the way during their descent take a horizontal position. On the lower horizontal section 19 line 5 before the visor 43 Playground 32 turns clockwise, so the stop 39 prevents the exit of empty car-truck 6 through the visor 43 in pit 4.
Due to the kinematic connection between the traction chains 7 and 8 both lines 1 and 5 through the use of gear pairs 47 and 52 with a transmission ratio equal to one, provided the movement of the traction chains 7 and 8 in opposite directions 53 and 54 at the same speed.
Due to the continuous operation and availability in addition to the top of the drive sprocket 9 and 10 intermediate drive sprockets 48 and 49 on both lines 1 and 5 possible lifting of loaded trucks 2 from deep pits 4 and the descent of empty trucks 6 in pit 4 at high performance. The implementation of the kinematic is Vasa between the drive sprocket 9, 10 and 48, 49 of the two lines 1 and 5 reduces the power consumption during the ascent-descent cars, trucks 2 and 6 due to unloading of the actuator, i.e. the energy of the actuators is spent almost exclusively on the rise of the rock mass.
Features of the invention provide lifting of loaded trucks from the quarry on the Board of career and simultaneous descent of empty cars trucks in the quarry during the continuous mode of transportation and to minimize the indicators of metal and energy when performing these operations.
1. System for lifting trucks aboard career, containing the line vertically with the closed plate-Katkova traction chain with rounding it is connected with the gearbox and the engine drive sprocket and idler sprockets to move the driving rollers of the chain guides, consisting of a slope and the adjacent horizontal sections in the lower and upper parts of the complex, while on the chain with a certain step fixed devices to capture and transportation of trucks to move their wheels in special ways, characterized in that parallel to the line for lift trucks placed the line for their descent running with kinematically interconnected band of stars is the customs in the head and middle part of the two lines, and every device for the capture and transportation of cars, trucks up and down made in the form of a hinge attached to the two plate-Katkov circuits and placed between the double levers with rollers at the free ends can be rotated dual levers in a vertical plane and moving the rollers along the guide rails positioned below the guide for the driving rollers of the traction chains, with dual levers are interconnected by a platform with the ability to place on it the rear wheels of a dump truck on the line of lift and the front wheels in line of descent, sites hosted with clearances above the tracks, with each site on line the ascent is made with a curved stop by idler sprockets with the possibility of its interaction with the rear wheels of a dump truck, and on the line of descent is made with two stops can accommodate between them the front wheels of a dump truck, in this way on sloping areas posted with movement of the front wheels in the line of ascent and rear wheels on the line of descent at a horizontal arrangement of cars, trucks, and career and on Board in the areas of entry of trucks in the line of ascent and descent over the idler and drive sprockets placed visors, and guides to t the retail chains and rollers levers are made curvilinear with the possibility of providing free check-in of the wheels of trucks on the road.
2. The complex according to claim 1, characterized in that the kinematic connection between the drive sprockets of the two lines can be made in the form associated with the motor gear, low speed shaft which is directly connected with the shaft of the drive sprocket of the line of ascent through the gear pair with shaft drive sprocket line of descent of the trucks.
3. The complex according to claim 1, characterized in that the ratio of the kinematic connection between the drive sprockets of the two lines is assumed to be one.
FIELD: transport specially adapted to underground conditions, particularly intermittently-acting mine transport, namely monorail roads for staff and loads transportation.
SUBSTANCE: monorail road includes mine tunnel, arch-shaped metal yielding support and monorail having H-shaped cross-section secured to the yielding support. Wheeled rolling stock moves along the monorail. Horizontal plates are arranged between the supports along monorail and spaced apart a distance exceeding distance between supports. The plate bottoms are fixedly connected to upper monorail shoulder. Panel tops are secured to U-shaped shoe. Each plate with above shoe is pressed to mine tunnel roof by anchors. Insert made of yieldable material is arranged between mine tunnel roof and shoe.
EFFECT: increased support stability due to elimination of reactive stresses appeared in monorail during rolling stock movement in different modes.
3 cl, 4 dwg
FIELD: mechanical engineering; conveyors.
SUBSTANCE: invention relates to conveyors with multichain traction member. Proposed scraper conveyor contains endless traction member consisting of parallel traction chains, two outer chains and one inner chain, closed in vertical plane on end sprockets and resting on guides of panline flight. It is provided with scrapers secured in turn by ends on outer chains, alternating with scrapers freely fitted with clearances between outer chains and attached by ends on inner chain. Scrappers secured on outer chains are provided with cavities for accommodating inner chain. Traction member is furnished with additional inner chain, both inner chains being arranged in middle part of panline flight symmetrically to each other relative to longitudinal axis of conveyor, and scrapers being secured by ends on both inner chains. Distance between outer and inner chains is set less than distance between inner chains.
EFFECT: increased length of flight owing to increased summary breaking force of traction member chains.
FIELD: mining, particularly for underground ore deposit and kimberlite pipe development.
SUBSTANCE: ore pass comprises shaft, loading mouth and sieve. The ore pass shaft is provided with conveyer belts suspended to sieve grate so that distances between adjacent conveyer belts are different and defined by maximal dimensions of rock pieces passing between the belts. Sealed elastic shell is arranged in lower ore pass part. The sieve is installed at α=17° - 45° angle to horizontal plane. Lower conveyer belt ends are provided with weights.
EFFECT: reduced degree of rock grinding, increased service life of ore pass members.
FIELD: mining industry; mine plants.
SUBSTANCE: invention is designed for selective transportation of mineral resources. Proposed conveyor contains rigidly mounted on buntons chute-like section guide conductors with curvilinear sections, articulated members with two load-carrying units freely suspended from axles and arranged symmetrically on each member and provided with gear wheels for selective transportation of load, and guide rolling supports on axles of members for engagement with said guide conductors. Rolling elements of rolling supports are made in form of balls. Conveyor is furnished also with distributed linear hydraulic drive. Guide rolling supports are provided with metal journals with rectangular seats on free places of which detachable inserts are installed accommodating said rolling elements in form of balls. Detachable inserts are installed for corrective displacement by means of pressure spring to adjust distance between guide rolling supports and inner surfaces of chute-like section guide conductors.
EFFECT: provision of reliable operation of conveyor.
FIELD: mining industry; transport facilities.
SUBSTANCE: invention can be used for transportation of rock under ground, particularly, for reloading of rock from one conveyor to the other arranged at one level. For this purpose loose material reloading device is used which contains inclined and horizontal sections with drive arranged on support between two conveyors. Device is installed in housing with windows from side of conveyors, and is made in form of chain with scrapers passed over rollers and installed for moving in pair of trapezoidal guides. Housing is installed on support by means of hydraulic jacks. Angle of tilting α of side of trapezium is within 35° and 45°.
EFFECT: simple design, provision of effective and safe reloading of rock from one conveyor to the other arranged at one level.
FIELD: mining industry.
SUBSTANCE: invention relates to vibrating facilities and it can be used for letting out ore or other materials and their separation. Proposed vibrating feeder has resilient supports, working member consisting of charging and discharge parts and vibrating drive consisting of two shafts with unbalance weight and motors, one per each unbalance weight. Place of arrangement of vibrating drive is determined basing on the fact that line of connection of axles of unbalance weights is located in area limited by two straight lines square to direction of vibration, one of which passed through center of mass, and the other is located at a distance from center of mass of 1/10L to side of charging part of working member. Axle of unbalance weights are located at different sides from line of direction of vibration passing through center of mass at distance equal to not less than 1/8 where L is distance between resilient supports in horizontal direction.
EFFECT: improved stability of operation of vibrating feeder at unstable supply and impact loads on working member at discharging.
FIELD: mining industry.
SUBSTANCE: invention can be used for transportation of rock in underground mines for reloading of rock from one conveyor to the other installed at one level. For this purpose device is used containing pair of flight conveyors, forced-draught and suction fans, air chamber with air inlet hole provided with cyclone installed over flight conveyor to be loaded. Air chamber is arranged between conveyors and is furnished with air collector made in form of screen with cells, housing and brushes from side of conveyors. Additional hole is made in bottom of air chamber to deliver air jet at angle to direction of material movement.
EFFECT: device of simple design providing effective and safe reloading of rock from one conveyor to the other installed at one level.
FIELD: mining industry.
SUBSTANCE: method for extraction and underground use of coal includes cleaning extraction and dumping of coal, fixing and controlling ceiling and transporting coal along face to drift. On the drift, in moveable generator, coal is pulverized for intensive burning with use of jets in water boiler firebox, where high temperature of steam is achieved (about 1400 C°), enough for decomposition of water on oxygen and hydrogen. These are separated, then oxygen is fed back to jets, and hydrogen is outputted along pipes and hoses in drifts and shaft. Variants of underground generator for realization of this method are provided. Also provided is method for extraction of disturbed coal beds by short faces. It includes extraction and dumping of coal on face conveyor, fixing of ceiling behind combine, moving conveyor line and support sections in direction of cleaning face displacement, control of ceiling with destruction and partial filling. Extraction of coal is performed in short curvilinear faces by long stripes along bed, in straight drive without forwarding drifts, with preservation and reuse of ventilation and conveyor drifts, equipped with mounting manipulator robots, with fixing behind combine by automatically operating support deflectors without unloading and displacing sections in area of coal extraction. Extraction and transporting of coal is performed by fast one-drum combine and curvilinear reloading conveyor, supplying coal to drift conveyor or immediately to underground gas or energy generator placed immediately on drift. Also proposed is face scraper conveyor for realization of said method, wherein pans are made with step along front face profile, greater, than along back one, while forming common line curved towards face with constant curvature. Also proposed is a method for controlling complex for unmanned coal extraction.
EFFECT: higher efficiency, effectiveness, broader functional capabilities.
8 cl, 5 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
FIELD: mining, particularly machines for obtaining, or the removal of, materials in open-pit mines.
SUBSTANCE: cutting drum has cylindrical body with drive and is connected to mining machine by posts. The cutting drum is provided with disc rolling cutters arranged on line of rolling contact and with conveying augers extending from both ends thereof to drum center. Coils of each conveying auger face each other to divide the drum into two symmetric halves. Side drum surface defined by imaginary disc rolling cutter races includes cylindrical part and conical parts tapering towards outer cutting drum ends and adjoining the cylindrical part. Cylindrical part length is not less than 0.25 of cutting length Hc of material to be separated from rock. Working side surfaces of disc rolling cutters having wedge cross-sections and arranged on both cutting drum body halves in central cutting part thereof face opposite directions. Working side surfaces of disc rolling cutters having wedge cross-sections and arranged in both conical drum body parts face drum center. Both outer ends of cutting drum body are provided with disc rolling cutters made as free-cutting bits having wedge cross-sections facing outside.
EFFECT: possibility to perform continuous mining of rock characterized by increased rigidity.
8 cl, 5 dwg
FIELD: mining industry, particularly open-cast mining, particularly to produce natural stone blocks from sheet deposits by open-cast mining.
SUBSTANCE: method involves forming benches in each separate deposit so that production deposit is arranged at bench bottom; excavating mineral blocks by moving hydraulic excavator bucket teeth under productive deposit bottom and removing the blocks having natural configuration due to applying hydraulic action of excavator boom, handle and bucket to block with the use of natural deposit fracture porosity, which defines configuration and volume of produced blocks.
EFFECT: increased output, possibility to produce blocks from thin sheet deposits along with maintaining natural block volumes.
FIELD: rock loading systems, particularly to load rock in dump-trucks with the use of mine excavator.
SUBSTANCE: system comprises hopper with outlet orifice and outlet orifice closing means. The system also has at least two modules arranged at mine face so that the modules may be moved and filled with rock by mine excavator. Each hopper has volume corresponding to load capacity of dump-trucks to be used. Outlet orifice closing means is made as pinned gate. Pedal is pivotally installed on frame slide at acute angle to slide base and may be rotated towards dump-truck driving direction. The pedal may rotate in vertical plane and is installed so that rear dump-truck wheels may be moved over the pedal. Pedal and free end of the gate are pivotally connected one to another through two control-rods and form articulated parallelogram. Hinge, which connects gate with control-rods, is fastened to counterweights by two flexible members and angle pulley so that counterweights may be displaced in vertical plane along frame posts. The hopper is provided with damping means brought into cooperation with the gate.
EFFECT: provision of continuous loading and undisturbed mine excavator operation.
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: open-cast mining.
SUBSTANCE: invention relates to continuous-operation self-propelled device designed for checking possibility of mining mineral materials and taking out interlayers whose properties, from point of view of their breaking and further transportation, are of vital importance at open cast mining. Proposed device has running gear, frame with drive unit and control panel and cutting drum arranged before running gear and equipped with cutting tools. Said drum is installed in supports of carrying frame for rotation around horizontal axis and is made for adjusting position in height by means of cylinder installed between frames and carrying frame. Crawler-type running gear is used. Cutting drum passes over entire width of device, and it is furnished with guide partitions and guard shield, is functionally connected with chute-like housing and is made for stepless change of speed of rotation, speed of feed and adjusting transverse tilting from one of two sides relative to working platform owing to vertical adjustment of position of one of hinge joints connection device frame and carrying frame which is made in form of forked rotary cantilever.
EFFECT: improved operating capabilities of device.
5 cl, 5 dwg