Downhole material handler
(57) Abstract:The inventive downhole material handler includes a conveyor with a rigid rod, wedge toe, fencing panels and the support plate. Wedge toe is located on the front end of the conveyor and connected with him. The base plate is fixed to the underside of his rod and located in the front. Each enclosing the shield is located on the corresponding side of the base plate and pivotally connected with it. Fencing panels are installed with the possibility of limited rotation in a vertical plane and fixing in position to partially overlap the lower part of the section formed by the output. 1 C.p. f-crystals, 4 Il. The invention relates to mining and is designed to work with a loading machine of continuous or cyclical actions when carrying out excavations brown-and-blast method and overload rock from the tunnel face on a belt or scraper transport conveyor placed in the ongoing development, as well as for the formation of the blade destroyed by the breaking of rock or coal array.When conducting mining brown-explosive way in the process of blasting rock or OTDELENIE pieces of rocks can be thrown to a distance of 20 m, as a result, it is necessary to carry out manual cleaning formulation.When unloading of the rock mass from the bottom loading machines continuous, and especially cyclic actions (bucket) in the initial stage of loading their performance is quite low. This is due to the fact that the blade in the beginning has a small thickness of the layer, resulting in additional time spent on maneuvers with loading an organ or the whole machine.In this regard there is an urgent need to develop special equipment or devices that allows you to shape the blade destructible rock mass and partially or completely overlapping section of excavation to correct dispersion of the rocks.Known technical solution  the Device consists of a conveyor and located above them vibratory feeder, which has a possibility regardless of the conveyor to move along it by means of a winch.Considering the device is designed for receiving and transporting the thump of hands by the explosion of the upper stratum of ore. This feeder is a tray for receiving the thump of hands ore and is equipped with a vibrator for feeding n is yrbook, because it is not able to accept destroyed by the explosion of the rock mass from the breast of the face and does not allow to form the blade.The closest in performance vehicles and loading functions is a device for release and loading ore  the Device consists of a vibrating conveyor, vibrating feeder, capable of moving along the conveyor through the hotel winch, frame with sliding perekryvatel and hydraulic stud jacks. The device is designed to control the release of previously repulsed ore through hesinki, rays or other rising output conveyor located in a horizontal development. To reduce the pressure of the efforts in the implementation of the feeder in a stack of ores it has a wedge-boot-toe with swivel plate.Consider the device cannot be used to form the pile (pile) when blasting blasting the chest of the face in the process of conducting horizontal and inclined mine workings. It is intended for special conditions inherent in the mining industry, the issue of pre-broken ore through the rising generation with subsequent loading on the main conveyor.The aim is achieved in that the downhole loader is located along the axis of the ongoing excavation and includes a conveyor with a rigid rod, located on the front end of the conveyor and connected with him toe wedge for the introduction of a pile of rocks and protection transport authority pipeline from direct impact of rock during blasting blasting and enclosing shields, the conveyor is made attached to the bottom side of the rod on the front of the base plate. Each enclosing shield, located on the corresponding side of the base plate, hinged to the support plate and is mounted with limited rotation in a vertical plane and fixing in position to partially overlap the lower part of the section held mine workings.Downhole material handler has a mechanism to rotate the enclosing shields in the form of hydraulic power cylinders and retaining the at one end with the corresponding enclosing a shield.Significant differences are as follows.Downhole tailpiece with mounted on the front end of the conveyor toe wedge is made with a fixed on the lower side of the rod on the front of the base plate, the sides of which are enclosing shields, pivotally connected to the support plate with the possibility of limited rotation in a vertical plane and fixing in position to partially overlap the lower part of the cross section of the ongoing excavation. The cross section above the loader remains open, allowing the explosive blasting not only to form the blade of the rock mass, but also to place some part of it on the panline the composition of the pipeline.For the implementation of a limited turning circle enclosing shields the material handler is a mechanism made in the form of hydraulic power cylinders, and a retaining rack for fixing cladding panels in position. Each retaining hour one end pivotally connected to the enclosing shield.In Fig. 1 shows a layout diagram of the downhole loader, side view.Downhole loader consists of a scraper conveyor 1 with the actuator 2, V sash on the sides of the base plate 5, which is rigidly attached to the lower side of the panline in the front part of the conveyor 1. The rotation of the shields 4 around the hinge 6 is hydraulic power cylinders 7. Shields 4 provided with a retaining racks 8, each pivotally connected to one of its end with the enclosing shield to give it greater rigidity in the rotating drum and the bottom. The end part of the stacker 1 drive 2 is located on the base frame 9. On the panline the rod is fixed in the front 10 and rear 11 of the trunnion (fingers) that are essential for mating material handler with the Executive body of the loading machine or rope winch moving the material handler.In Fig.2 shows the section a-a in Fig.1.Enclosing the shield 4 comprises a rigid frame made of profiled products, such as channel bars, and including vertical 12 and horizontal communication 13. To the frame rigidly attached metal protective sheet 14. Power cylinders 7 when installing cladding panels 4 in the transport position 11 (Fig.1) are placed in the grooves 15 of the support plate 5.In Fig.3,4 presents the layout of the loader in the cross-section of excavation: Fig.3 when placing material handler at the wall framing; Fig.4 the location, the blasting operations of the loader 1 is installed at a distance of 3-4 m from the breast slaughter. While moving his generation is loading machine by engagement of its Executive body with fingers (knuckles) 10. Fencing panels 4 by means of power cylinders 7 are installed in working position 1 and to increase the rigidity of the structure are propped up by the uprights 8. After blasting part of the rock mass trapped in the panline material handler in his inclusion in the work loaded on the transport conveyor located beneath him. Then the material handler 1 through the loading machine is moved back to a distance in accordance with the angle of repose of the rock mass. Fencing panels 4 are transferred to the transport position 11, then loading machine starts unloading of the rock mass and loading it on the loader 1. Upon completion of the driving cycle, the material handler is set back on the above distance from the face. The cycle is repeated. 1. DOWNHOLE LOADER, comprising a conveyor with a rigid rod, located on the front end of the conveyor and connected with the last V sock for introduction into the pile of rock and protection of transporting the body of the conveyor from direct impact of the rock mass when srivstava and located in the front part of the support plate, and each enclosing the shield is located on the corresponding side of the base plate, hinged to the support plate and is mounted with limited rotation in a vertical plane and fixing in position to partially overlap the lower part of the section formed by the output.2. The material handler under item 1, characterized in that it has a mechanism to rotate the enclosing shields in the form of hydraulic power cylinders and retaining rack for fixing cladding panels in the working position, each of the retaining strut pivotally connected at one end with the corresponding enclosing shield.
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