Complex for delivery of ore per block for storey collapse and release it under cover rocks
(57) Abstract:The invention relates to mining-and-transport machines and can be used in the mine transport systems for delivery of ore in a mining block in the development of powerful fields storey collapse and ore under cover rocks. Mobile crane made in the form of a partitioned dosing capacity with the number of sections, allows simultaneous operation of groups of vibrating feeders, which are fastened together and mounted on rails attached to the soil and the walls of the delivery formulation, the tank is provided with a drive reciprocating movement in delivering development under the group vibratory feeders and under discharge node, and each section consists of the left and right sides, mounted on anti-friction elements move and associated shafts on which are mounted a tilting plate bottoms that when moving on delivery develop rely on guides and tip over when passing over the site of release. Object of the invention is the creation of a complex for delivery of ore in the unit, providing simultaneous operation of the group vibration Phnom machines and can be used in the mine transport systems for delivery of ore in a mining block in the development of powerful fields storey collapse and fibrolipoma ore under cover rocks.To develop a powerful fields storey collapse and the release of broken ore under cover rocks are widespread complexes consisting of permanently installed under the outlet duckli vibrating units with loading ore cars or hopper train.When loading ore in the car impossible to control the movement of ore in a mining space at its contact with the overlying rocks. Above each vibration setting produces its own flow, deviating in one direction or another depending on the density and particle size of the material. Resulting in a clearing space formed many chaotic zones of streams with different levels of movement of the contact ore and cap rocks. There is a mixing of ore and cap rocks. Long-term practice shows that this complex issue and delivery of ore dilution is 15 to 25%, and losses of 10-15%.The known method of ore to form one common thread of rock in a clearing unit space, which eliminates the mixing of the ore and waste rock, greatly reduces losses. This is achieved by the fact that all production release unit equipped with vibrating lips of the currents of the materials crossed at low altitude. In case of simultaneous activation of all-in a mining unit space formed one common thread of the rock mass, which prevents mixing of the ore and overlapping species and reduces losses. Implement this method when loading into wagons and hopper train is almost impossible. A device for transporting ore on delivery formulation (see, for example, and.with. N 1564365, E 21 F 13/00), including drives with traction elements, pivotally connected with the actuators were installed on the working bodies and gutters, and it is provided with a spacer columns. Actuators installed with a constant pitch on the spacer columns. Each actuator is made in the form of a U-shaped carrier and a rotary frame mounted to rotate around the axis of the spacer column and pivotally connected to the upper parts of the traction elements of the respective actuators, while the support frame bottom parts are connected pivotally with the working body, and in the lower parts of the swing frame is made grooves in which are located with the possibility of rotating and reciprocating motion of the working bodies. In addition, the installation step may be fixed and depends on the height of the suspension and>/P>The disadvantages of the known devices are manufacturing complexity, low reliability when using coarse material that does not completely implement the above method dosed release and loading of ore.The closest in technical essence is the treatment delivery complex (see, for example, and.with. N 1361352, E 21 F 13/00, 1987), including vibrating feeders for ore, working body vibration exciter, mobile excavator, on a frame which is hinged and elastic supports mounted tray, belt conveyor, and the working body has oppositely arranged bevel and tray equipped with tracks located interoperable with bevels of the working body. In addition, the tray and the working body have a latching mechanism located with the possibility of automatic connection. A disadvantage of the known technical solution is the impossibility of simultaneous work of the group of vibratory feeders for implementing the method with education in a mining unit space of one thread of the rock mass. The objective of the proposed invention is the creation of a complex for delivery of ore in the block, allows simultaneous operation of groups>Mobile crane made in the form of a partitioned dosing capacity with the number of sections that provide simultaneous operation of the total control group vibratory feeders, at least three pieces, with sections fastened together and mounted on rails attached to the soil and the walls of the delivery develop and drive partitioned dosing tank configured to ensure its reciprocating movement in delivering development under the group vibratory feeders and on the site of unloading ore, and each section consists of left and right side, mounted on anti-friction elements move and interconnected shafts, on which are mounted a tilting plate of the bottom when you move supported by a removable strips of low friction material on guides fixed to the soil hauling produce and discharging at the discharge curves when driving on site unloading ore. In addition, the tilting plate of the bottom sections is made in the form of a frame made of sheet metal. covering sleeve for accommodating the shaft, the Central portion of the frame is filled with damping material, the e when working with rails attached to the soil hauling produce.Significant differences of the proposed technical solutions are the following.Mobile crane made in the form of a partitioned dosing capacity with the number of sections that provide simultaneous operation of the total control group vibratory feeders at least 3 pieces.This solution allows the release and loading ore at the same time group (justification for number of vibratory feeders in the group is given below) vibrating feeders, which forms a single stream of rock in a clearing space, eliminating the mixing of the ore and overlapping of waste rock. In order that the ore was uniform across the cross section of the block, vibrating feeders unload partitioned in the dosing tank. Each feeder unloads a certain amount (the amount of capacity under the vibratory feeder) ore, after which all vibrating feeders are disconnected. This provides a uniform ore from the block across the section. If for any reason (local hang ore above the feeder, the passage of large pieces) will not fully filled tank on any feeder, produce the Indus the ore from the block, thus ensure a uniform lowering of overlapping species within the block. And in order to reduce the complexity of installation and dismantling dosed the tank, it is made of sections, the size of which provides transportation from the surface of the mine to the treatment unit in the field.Sections fastened together and mounted on rails attached to the soil and the walls of the delivery output.This solution allows you directly in the face of the purification unit to mount the dosing capacity of the individual sections. Bonded sections can be used for transmission of the movement of the mobile material handler, thereby to simplify the design of the drive.To reduce the resistance of movement of the mobile material handler and simplify the design in the technical solution involves moving lead in special guides attached to the soil and the sides of the feeder output. In addition, the solution provides reliable operation at high shock loads.Is the drive partitioned dosing tank configured to provide back-ASS="ptx2">This solution allows to simplify the design of the mobile material handler. The length of the partitioned dosing capacity can reach up to 100 meters and more, allowing you to work off the field with a capacity of up to 200 meters, with the location of the discharge site in the middle part. This unit can be mounted up to 30 vibrating feeders 15 pieces in each party. The reciprocating movement allows to considerably simplify the design of the body move ore due to the refusal from the other branches. In addition, the reciprocating movement of the dosing tank at the location of the discharge site in the center of the block reduces the intensity of its production. The reciprocating movement of the dosing container, stationary guides allows you to create a robust design that can withstand high dynamic loads falling pieces of ore weighing 3-5 and tons more from a height of 2-3 meters and blasting, crushing oversized. As sectional dosing tank is made of separate sections, then its length is determined from the conditions of use. To mine the deposits limited capacity to 20 meters, when the ore weak, partitioned dosing tank must ensure 3-5 vibratory feeders, and the discharge site is located on one of the sides of the field. In the development field with a capacity of more than 20 meters suitable discharge site is located in the middle (power) deposits forming in a clearing space two threads, for example, 3 feeder on each side.Each section consists of the left and right sides, mounted on anti-friction elements move, and the boards are interconnected by a shaft on which are mounted a tilting plate of the bottom when you move supported by a removable strips of low friction material on guides fixed to the soil hauling produce and discharging at the discharge curves when passing over the site of unloading ore.This solution allows you to create a design providing minimum resistance to movement of the partitioned dosing capacity at the delivery formulation. The Board protects guides fixed to the walls and ground delivery formulation that provides low resistance to the movement of the dosing container. In the body of boron is mi slip or slide bearings, that ensures reliable operation under high dynamic loads. In addition, the Board protects the cable line and drives the vibration feeders.The proposed solution allows you to create a simple design of the bottom, providing reliable operation under high dynamic loading and emptying the dosing tank at the walkway above the unloading site.In addition, a tilting plate bottom can be made in the form of a frame made of sheet metal covering sleeve for accommodating the shaft, the Central portion of the frame is filled with damping material, for example wood, and on the outer surface of the frame has replaceable wear strips in contact with the guides attached to the soil hauling produce.This solution ensures reliable operation of the dosing capacity under high dynamic loads in the fall of large pieces of ore vibrating feeders due to the damping of the shock load tree. When moving along the guides in delivering development provided a slight resistance to movement due to the small coefficients of friction between iznosostoyki with minimal repair costs. Frame plates of sheet metal provides it the flexibility to shock loads, providing a large area of contact with the guides attached to the soil hauling produce.The essence of the proposed technical solutions.Complex for delivery of ore in the block, made in the form of a partitioned dosing capacity mounted on rails attached to the soil and the walls of the delivery formulation, provides simultaneous group vibratory feeders with unloading of a dose equal to the tank volume. After loading capacity is split oversized, if there is a need (at the exit of oversized pieces of the treatment space fragmentation can be carried out in the dosing tank and exhaust openings on vibrating feeders with the use of explosives). Then make the move a partitioned dosing tank above the discharge node, while the overturn plate, and the ore is poured into the vehicle or ore passes. Upon further movement on guide plates are installed in a horizontal position, and collected dosing capacity padetha site. Included in the second group of vibrating feeders. There is a simultaneous dosed vibrating the release of the second group of vibrating feeders with the formation of the second thread of the rock mass in mining space. After filling the dosing capacity vibrating feeders of the second group are disabled, examination issued ore, if necessary, make crushing large pieces of miscellaneous charges of explosives. Then is move the filled dosing tank above the discharge node, and the cycle repeats. Thus, when the reciprocating movement of the partitioned dosing capacity of the first and second groups of vibrating feeders through the discharge node is the issue, secondary crushing, shipping and unloading of ore. Production of ore from the mining block is two threads in a mining space, which significantly reduces the mixing of the ore with leaning rocks and reduces losses. In addition, the tilting plate of the bottom sections performed in the frame of the sheet metal covering sleeve for accommodating the shaft, the Central portion of the frame is filled with damping material, for example wood, and on the outer surface of the frame installation for the production, that increases the efficiency of the complex.Thus, the proposed solution has the essential elements of novelty and usefulness.An example of executing complex for delivery of ore per block for storey collapse and release it under cover rocks and its installation in the delivery formulation is shown in Fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 and 25, where Fig. 1 is a schematic diagram of the Assembly of the complex in delivering the formulation of the treatment unit, a vertical section; Fig. 2 - the same, in plan; Fig. 3 - section delivery output pairing generation of vibration of the ore and host partitioned dosing tank; Fig. 4 - section of the dosing tank; Fig. 5 - the same, in plan; Fig. 6 is the same, the section a-a (Fig. 4); Fig. 7 - same as Fig. 6 during unloading; Fig. 8 is a view along arrow "a" in Fig. 4, (open for placement of the capture cylinder displacement dosing capacity); Fig. 9 - this is the same site I, view "b" (Fig. 4), the bearing is a cylindrical sections with sliding bearing; Fig. 10 - this is the same site I, view "b" (Fig. 4), embodiments of the bearings section; Fig. 11 - the design of the plates of the bottom section of the dosing tank; Fig. 12 is the same in plan; Fig. 13 - p is sending delivery formulation; Fig. 14 is the same as that of Fig. 13, when moving through the discharge node; Fig. 15 is an example of the installation plate on the shaft of the bottom section at its middle, the fragment during travel along the guides of the delivery formulation; Fig. 16 is the same as that of Fig. 15, when moving through the discharge node; Fig. 17 is an example of the installation plate on the shaft of the bottom section between the end portion and the middle fragment while moving along the guide rails hauling produce, and Fig. 18 is the same as that of Fig. 17 while moving through the discharge node; Fig. 19 - design of the bottom of the dosing capacity (cross section); Fig. 20 - a device for cleaning the channels under the bottom of the dosing capacity (longitudinal section); Fig. 21 - the same, the section b-B (Fig. 20); Fig. 22 - the same, in plan, cross-section B-B (Fig. 20); Fig. 23 - site unloading dosing tank, a longitudinal section; Fig. 24 is the same in plan; Fig. 25 - hydraulic travel drive partitioned dosing capacity.The proposed complex is intended for a method of simultaneous dosed fibrolipoma ore blocks in systems with massive collapse and the release of broken ore under cover rocks, the essence of which is that of the cleaning unit at the same time producing under the vibratory device. Then in dosing vessel, if there is such a need, produce secondary crushing of oversize all known techniques, including overhead charges of explosives. Then the dose of ore produced and subjected to secondary crushing, delivered and unloaded in a vehicle or storage of the ore passes. And then partitioned dosing capacity load simultaneous dosed vibrolush, and the operation repeated. This method provides a smooth lowering of the ore in a mining space around the section of the block, thereby preclude its mixing with the overlying barren rocks and significantly reduces losses. The specificity of simultaneous fibrolipoma ore directly from the treatment space (ore highly heterogeneous in size and has a separate pieces requiring crushing) imposes significant constraints that require structural differences.When developing a powerful field 1 (indicated by the contours of the field by hanging and lying each side) passed delivering output 2 (Fig. 1, 2). From the delivery openings 2 at the height of 1.5-2 m pass-making issue 3, ending duckli 4 (ducky generation, passed 5-10 meters provides the intersection zone flows at low altitude (4-6 meters) in a mining space. In each discharge generation 2 are mounted vibratory feeders 5 (let's call the left and right groups of vibratory feeders). The number of vibratory feeders in the group of three to fifteen or more pieces. In delivering development 2 on its soil and the sides of the fixed guides 6, 7 (Fig. 3), for example, made of rails. The distance between the guide 7 (rails) 0,3-0,7 m to ensure sufficient durability under high dynamic loads. Guides 7 can be mounted on wooden supports 8 to mitigate shock loads. In delivering development 2 on the guides 6, 7 mounted partitioned dosing container 9, consisting of sections 10 (Fig. 1, 2) fastened together. Each section consists of the left 11 and right 12 sides, connected by a shaft 13 (Fig. 3, 4, 5). The sides 11, 12 of the sections is mounted a support move, for example made of cylindrical bearings 14 (Fig. 4) with the bearing 15. In addition, the bearings of the moving section can be performed supports slide 16 (Fig. 10), such as PCB, krennerite, etc. On the shafts 13 are installed tipping plate 17 of the bottom sections (Fig. 5). Plate 17 is made in the form of a frame 18 (Fig. 11, 12) of sheet metal, whateverism, for example the tree 20. On the outer surface of the frame has replaceable wear strip 21, for example, made of wear-resistant manganese steel. When the strips 21 are in contact with the guide rails 7, enshrined in delivering the formulation 2. Moreover, during operation of the complex in turn operates one of the sides of the plates 17, providing a longer term health. In the plate 17 can be installed in five of the sleeves 19, allowing you to mount it in the bottom section in three variants (Fig. 13, 14, 15, 16, 17 and 18).The first variant (Fig. 13, 14) - plate 17 by means of bushings in the front-end part and the shaft 13 is fixed at the end. When moving in delivering development along the guides 7 (Fig. 13) load Otavalo ore to plate 17 is evenly distributed over 50% on the axis 13 and the strip 21. Through the axis 13, the load is transferred to the sides 11, 12 (Fig. 4, 5) of section 10 and a support roller 14 on the guide 7. Through the strip 21, the load from the bulk of the ore is passed directly guides 7 (Fig. 13), the movement is in the sliding friction of steel on steel. During the passage plate 17 above the unloading site almost 100% of the load from the bulk ore involved in the tipping her over the ore passes (Fig. 14). This ensures that the chorus is upnote.The second variant (Fig. 15, 16) plate 17 through a bushing in the Central part and the shaft 13 is fixed at the center. The load of bulk ore almost 100% perceived axis and through the sides 11, 12 (Fig. 4, 5) and a support roller 14 is transmitted to the guides 7 (Fig. 3). Strip 21 perceive only the load from the uneven distribution of bulk ore. In this embodiment, the minimum energy cost of moving the dosing tank on rails in delivering development. When passing over the discharge node in the tilting plates 17 are only efforts from the uneven distribution of bulk ore, which complicates the process of unloading. This option mounting plate 17 in the bottom sections of the dosing capacity can be used for ore fine crushing.The third variant (Fig. 17, 18) - plate 17 is fastened through the axis 13 in the sleeve disposed between the Central and end portions asymmetrically. Depending on the magnitude of the asymmetry of this option on the load distribution may be closer to the first or second options mounting plate in the bottom section.Design section 10 and the plate 17 allows you to mount any of the three above-mentioned options without any changes and dopey capacity. Section dosing tanks are fastened to each other. The sides of the section are used in the transmission of forces to move. On the sides of the sections can be made window 22 (Fig. 8) to accommodate the capture cylinder displacement (described below). The number of sections 10 is determined by the total length of the dosing tank 2 which allows simultaneous operation of group vibratory feeders 5, located on the left or right side of the ore passes 6. For example, the thickness of the ore body 90 metres length dosing tanks shall be 50 m, and it should serve concurrent thirteen vibratory feeders 5 (Fig. 2). For reciprocating movement of the dosing container 9 complex is equipped with a drive. The drive can be used tyagalnye winch 22, 24 (Fig. 1, 2) or driven by hydraulic cylinders 25, 26, 27 and 28 (Fig. 24). In addition, the actuator may be hydraulic cylinders 25, 26, 27, 28, and simultaneously used tyagalnye winch 23, 24. Hydraulic cylinders are equipped with an automatic grippers 30 with the lugs 31, which communicate with the Windows 22 in the sides of the sections 10. The discharge Assembly is provided with a discharge guide 33 (Fig. 23), which are supported by PKU. To remove the spillage under dosing capacity at section 34 attached to the underside of the plow 35 (Fig. 20, 21, 22) through which clears the groove between the guide rails. For crushing oversized in delivering development on a partitioned dosing capacity in the immediate vicinity of the discharge valve can be installed butabi made by the known technical solutions, or places for blasting, crushing large pieces. During Assembly of the complex in the chamber 36 (Fig. 2) is equipped with remote control 37. Through remote control can turn on in the right or left of the group of actuators of vibratory feeders 5. In addition, each feeder can be switched individually portable device enable drive vibratory feeder, is made known technical solutions.Complex for delivery of ore per block for storey collapse and release it under cover rocks works as follows. Partitioned dosing container 9 is installed, for example, under the left group, consisting of thirteen vibratory feeders 5 (Fig. 1, 2). With a single point 37 include in the work all thirteen of vibratory feeders 5. When odnovremenno 4 and develop issue 3 comes in a partitioned dosing container 9, filling volume for each vibration feeder 5 (Fig. 3). After filling the dosing capacity all vibrating feeders off. The dosing container 9 is filled with a definite dose of ore. In a clearing space over the entire area of the block has been lowering the contact of the ore and cap rocks to a certain height (due to the fact that there is a common thread throughout the area). Inspect the filling of the dosing container. If necessary, establish the charges of explosives into large pieces that are in the dosing container 9, and the outlet openings 3 and vibrating feeders 5. Produce explosive charges, and after airing lead ore shipment movement of the dosing container 9 along the guide rails 6, 7 in delivering development 2, for example, using tyagalnye winch 24 (Fig. 1, 2). When moving the dosing container 9 on site unloading 6 (Fig. 23) plate 17 of the bottom sections 10 tip over, sliding on guides 32. Moreover, the process of overturning plates 17 may be performed by trajectories depending on the schema of the suspension plate 17 on the shaft 13 (Fig. 14, 16, 18). Is the emptying of the sections 10 of the dosing container 9. Upon further movement of the plate 17, sliding on guides 33 is th party vibratory feeders 5. During unloading dosing capacity possible crushing of oversize by mechanical or other Balabaev installed over dosing capacity in the immediate vicinity of the discharge site. When oversize movement of the dosing tank stops (if such is required), is made by crushing large pieces, after which the process continues. The reciprocating drive of the dosing container 9 can be supplied from the hydraulic system, for example, includes four hydraulic cylinders 25, 26, 27 and 28 (Fig. 24). Each cylinder has a grip 30 with the stop 31 (Fig. 24, 25), interacting with the window 22 in the sides of the section 10. When the movement of the dosing capacity left to right, as shown in Fig. 24, the hydraulic cylinders 25, 26 create a force to move a direct course, acting through the stop 31 in the Windows 22. At the same time, the hydraulic cylinders 27, 28 are creating the effort to move "backward" way. Under the total influence of the four cylinders is the stepping movement of the dosing container 9.After passing through the discharge site, the dosing container 9 is mounted under the right group of vibrating feeders. Include in the work all vibrating feeders 5 led turn off, inspect issued ore, if necessary, conduct secondary crushing explosive way. In addition, if for any reason under any vibratory feeder was empty part of the dosing capacity, individual enable lead her desapareceu. Then the proven ore that is in the tank, delivered and unloaded by the unloading site. This cycle.While moving the dosing capacity through plughw 35 (Fig. 20, 21, 22) cleaning the channels between the guide 7. As wear strips 21 on the plates 17 of the bottom section 10 is to replace them. Due to the fact that the strip 21 is made of wear-resistant steel at specific pressure not exceeding 10 kg/sq. cm, lifetime ensures the production unit to the full height of the floor. To release the block with the floor height of 70 meters will require less than 1000 movements dosing capacity for loading and unloading. The use of plates with the reinforcement of the Central part of the tree, as shown by a practical test, provides reliable operation under high dynamic loads, including blasting, crushing large pieces of ore.Moving the dosing capacity allows proizvodimoj crushing of oversize, securely protect the drives and starting equipment and conductive cables sides partitioned dosing capacity.Thus, a complex for delivering the ore block at the floor collapse and release it under cover rocks reduces the dilution of the ore, to reduce its losses in the mining space, to ensure the production and delivery of virtually unlimited capacity. 1. Complex for delivery of ore per block for storey collapse and release under cover rocks, including vibratory feeders, each of which has a working body vibration exciter, remote control vibration exciter, mobile excavator, site unloading ore, characterized in that the mobile material handler is executed in the form of a partitioned dosing capacity with the number of sections that provide simultaneous operation of the total control group vibratory feeders, at least three, with sections fastened together and mounted on rails attached to the soil and the walls of the delivery output, and the drive is partitioned dosing tank configured to ensure its reciprocating movement in shipping varaprasada sides, mounted on anti-friction elements move and interconnected shafts on which are mounted a tilting plate of the bottom when you move supported by a removable strips of low friction material on guides fixed to the soil hauling produce and discharging at the discharge curves when passing over the site of unloading ore.2. Complex p. 1, characterized in that the tilting plate of the bottom sections performed in the frame of the sheet metal covering sleeve for accommodating the shaft, the Central portion of the frame is filled with damping material, for example wood, and on the outer surface of the frame has replaceable wear strips in contact with the guides attached to the soil hauling produce.
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: 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: 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; 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; 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: 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 industry.
SUBSTANCE: proposed member includes slats with connecting elements secured on running rollers and round-link chain. Connecting elements are made in form of two guide slats, fastening, fastening pin and yoke enclosing horizontal links of chain, and ends of vertical links are located between guide slats.
EFFECT: reduced metal usage for manufacture of connecting elements, reduced time taken for mounting and demounting, simplified design of traction-and-carrying member of slatband conveyor.
FIELD: mining industry; face and drift conveyors.
SUBSTANCE: proposed section contains lower run 2 and upper run 3 for driving chain scrapers, welded frame structure 1 with interconnected sides, transport bottom 8 and connecting appliances 60. according to invention, sides consists of mirror turned-over solid rolled sections 10 of asymmetric form constant along length of section. Sections 10 are turned outwards and they include lower and upper shelves and raised intermediate shelf connecting lower and upper shelves and provided with bend on which at least one step is made from inner side to support and weld-to at least one intermediate sheet 40A reinforcing rolled sections 10. Transport bottom 8 is welded to two rolled side sections 5 to form replaceable tray 4.
EFFECT: simplified design owing to reduction of number of components, and facilitated manufacture owing to automatic mounting and welding operations.
26 cl, 7 dwg
FIELD: mining; transportation.
SUBSTANCE: tunnel miner includes crawler-tracked carriages, drilling effector, berm cutters, cut-out drums, warding four-section shield with boards and buckets attached to the said sections, chute-like conveyor with walls, control panel of hydraulic system, miner's electric equipment control station, and operator's seat. The miner incorporates two dust-screening flaps mounted pivotally, by means of curtains, on the chute-like conveyor walls at an angle to the vertical. The dust-screening flaps at the operator's seat side feature locking device with arms capable of shifting towards only one direction to reach the stops installed in one flap, and thus to free the adjoining flap.
EFFECT: reduced dust level of the operator's workplace during miner operation.
SUBSTANCE: invention relates to joint element for jointing the chute section of the chain scraper or for the mining machine guide sections, particularly, for the grader guide, incorporating two heads made integral by means of the rod narrowing along the width. Every head side facing the rod is furnished with bulged-round shoulders inclined towards the rod. The invention proposes also the open-side pockets arranged on the chute sections to house to aforesaid joint element.
EFFECT: possibility of transmitting high axial loads at high angular mobility and simpler assembly of jointing elements.
19 cl, 5 dwg