Device for hydraulic mining of coal beds

FIELD: mining.

SUBSTANCE: device comprises a machine with a hydraulic drive of reciprocal and return-rotary displacement, a two-channel tubular frame, a jet working element, a system to supply and distribute discharge liquid. The working element is equipped with the main and auxiliary jet-forming shafts with attachments and separated channels of discharge liquid supply to them. The main shaft is installed at the angle of 90°, and auxiliary shafts - at the angles of accordingly 45° and 3-10° to the longitudinal axis of the working element. Supply of the discharge liquid to channels is adjusted to a two-position distributor installed on the shaft of the hydraulic drive of return-rotary displacement.

EFFECT: simplified design, increased reliability of design, increased safety and efficiency of labour.

4 cl, 3 dwg

 

The technical field

The device applies to the mining industry and can be used for deserted dredging steep and inclined coal seams.

Prior art

In the prior art it is known a device for the formation of the discharge slots in the coal massif, revealed in the author's certificate SU 1719634 published 15.03.1992, including drilling machine with hydraulic rotation and feed of the drill standing up with the hydraulic head and hydraulic nozzle for the formation of the discharge groove, a hydraulic system for supplying water to the hydraulic head and hydraulic nozzle. Drilling becoming made of rotating and non-rotating parallel and are connected for joint filing rods. The rotating rod is connected with the drill head, and non - hydraulic nozzle. Hydraulic rotating executed with an on / off mechanism of the reverse, and a hydraulic system for supplying water to the hydraulic cylinder and the nozzle with controllable on-off valve, the control channels which are parallel connected to the hose connecting mechanism of the reverse feed with hydraulic drive.

The disadvantage of this device is that its design is not provided capacity drilling rod, due to agapurin discharge groove is limited by the length of one rod.

Also known complex deserted of coal extraction, described in the author's certificate SU 1130691 published 23.12.1984 consisting of a machine with hydraulic rotation and feed sectional drill rod, drill head, reamer with a nozzle for the formation of the groove, drive systems, water supply and management. The machine includes a rotator, hydraulic feed mechanism of the pickup. Rod drill rod is two-channel. One of the channels connected to the nozzle of the drill head and the second nozzle extender. Management of water supply to the nozzles is performed by overlapping the corresponding channel on the rotator.

The formation of the discharge groove of the complex is performed in such sequence. First drilled well by feeding high-pressure water to the nozzles of the drill head with the simultaneous rotation of the rod and feed it to the bottom. Drilling at the desired length is achieved by gradually increasing the drilling rod. The formation of a groove produced in the reverse process of submission without rotation of the rod after switching the water supply channel connected to the nozzle extender. Drilling and formation of the discharge grooves is made with the remote control.

The disadvantages of this complex are the following: postanovka capacity and reducing drilling rod, and is also the channel switching of a high-pressure feed water in the transition from operation "Drilling" operation Education discharging groove" manually that significantly reduces the security of the work and increases their complexity; high probability of suboceana wells oversized chunks of coal in the conduct of sewage extraction; the deviation of the borehole from a given direction depending on livanou structure formation.

Closest to the claimed invention, the set of essential characteristics is complex deserted dredging coal, disclosed in US patent 4,094,549 published 13.06.1978 consisting of machines with hydraulic drives supply of main and auxiliary streammessage trunks with separate channels for the supply of pressure fluid.

The disadvantages of this solution include the complexity and low reliability of a design, a high probability of suboceana wells oversized chunks of coal in the conduct of sewage extraction, insecurity and low productivity.

Disclosure of inventions

The technical result, which directed the claimed invention is to simplify design, increase reliability, and improve safety and productivity.

This technical result is achieved due to the fact that the device for hydraulic dredging of coal seams containing machine with hydraulic reciprocating and swinging swivel PE is Emesene, dual tubular becoming, jet working body, the supply and distribution of pressure fluid according to the invention, the working body is equipped with main and auxiliary trueorigin trunks with nozzles and separate channels for supplying pressure fluid thereto, and the main shaft is set at an angle of 90°, and an auxiliary trunks at angles of 45° and 3-10° to the longitudinal axis of the working body, while the supply of pressure fluid to the channels is regulated by an on / off valve, installed on the shaft of the hydraulic drive of a reciprocating rotary movement.

While working body may be provided with a protective streamlined housing with holes for release of pressure jets, made with the possibility of protection truefinish trunks with nozzles from mechanical damage.

This technical result is also achieved due to the fact that the dispenser includes a clutch mounted on the shaft of the hydraulic drive of a reciprocating rotary movement, and a hydraulic cylinder rigidly connected with the said sleeve, the piston cylinder through the rod and the cap is connected to the shaft of the hydraulic drive of a reciprocating rotary movement.

The dispenser can be performed with the remote control, for example, using electromagnetic spools or hydraulic switch is.

Brief description of drawings

The invention is illustrated by drawings, where:

1 shows a General view of the device for hydraulic dredging of coal seams;

Fig 2 depicts the working body of the device for hydraulic dredging of coal seams;

figure 3 shows a two-position distributor of pressure fluid.

The best option of carrying out the invention

Device for hydraulic dredging of coal seams contain machine 1 hydraulic 2 reciprocating and reciprocating rotary movement, dual tubular becoming 3, jet a working body 4, the supply and distribution hub 5 of the pressure fluid. The working body 4 is equipped with 6 main and auxiliary 7 and 8 trueorigin barrels and nozzles with separate channels 9 and 10 for supplying pressure fluid thereto, has a protective casing 11 with holes 12 for the output pressure of the jets.

The main shaft 6 is installed at an angle of 90°, and the auxiliary truepromise trunks 7 and 8 angles respectively 45° and 3-10° to the longitudinal axis of the working body that allows for the efficient destruction of oversized coal.

Supply of pressure fluid from the pumping station to the channels 9 and 10 is adjustable remotely controlled on-off valve 5, consisting of clutch 13 mounted on the shaft hydropro the ode reciprocating rotary movement 14, and cylinder 15, rigidly connected with the clutch. The piston 16 of the hydraulic cylinder through the rod 17 and the cover 18 is connected to the shaft of the hydraulic drive of a reciprocating rotary movement.

When alternating the flow of the working fluid in the piston and the rod end of the hydraulic cylinder 15, the housing together with the sleeve 13 is moved from one extreme position to the other, connecting the power channel with the channels of the primary or secondary trunks. The high pressure fluid through one of the two channels of the shaft of the hydraulic drive of a reciprocating rotary movement 14 and rod 3 are alternately supplied to the main or auxiliary trunks.

The hydraulic drive 2 transmits the operating body 4 reciprocating and reciprocating rotary movement, when it is washed in the reservoir Ironman cavity that is triggered by the collapse of the overhanging coal array and crushed coal oversized. The coal mass in the form of a slurry by gravity hydrotransport is delivered via hole 19 in the field accumulating drift 20. The length of the tubular rod 3, which is located in the field-well 19, does not depend on the height of the floor.

1. Device for hydraulic dredging of coal seams containing machine with hydraulic reciprocating and reciprocating rotary movement, dual tubular becoming, jet working body, the supply and distribution of pressure the liquid, characterized in that the working body is equipped with main and auxiliary trueorigin trunks with nozzles and separate channels for supplying pressure fluid thereto, and the main shaft is set at an angle of 90°, and the auxiliary trunks - angles, respectively, 45° and 3-10° to the longitudinal axis of the working body, while the supply of pressure fluid to the channels is regulated by an on / off valve, installed on the shaft of the hydraulic drive of a reciprocating rotary movement.

2. The device according to claim 1, characterized in that the working body provided with a protective streamlined housing with holes for release of pressure jets, made with the possibility of protection truefinish trunks with nozzles from mechanical damage.

3. The device according to claim 1, wherein the dispenser includes a clutch mounted on the shaft of the hydraulic drive of a reciprocating rotary movement, and a hydraulic cylinder rigidly connected with the said sleeve, the piston cylinder through the rod and the cap is connected to the shaft of the hydraulic drive of a reciprocating rotary movement.

4. The device according to claim 1, characterized in that the dispenser is made with the remote control.



 

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FIELD: mining.

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EFFECT: invention allows increasing coal production efficiency.

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FIELD: mining.

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EFFECT: invention allows improving the efficiency of methane-air mixture exhaust from mine.

5 dwg

FIELD: mining.

SUBSTANCE: method consists in mining of the deposit with wells, creation of a cavity, and destruction and change-over of mineral product to hydraulic mixture. Mixture is mixed and hollow rock is deposited at the bottom of the formed cavity; coal-water suspension is pumped out to the surface and transported via pipes to the consumer. In order to destruct mineral product, high methane content of coal beds is used; at that, methane content in the formed cavity is controlled; and when the most explosion hazardous concentration of methane, which is equal to 10%, is achieved in that cavity, explosion is initiated. After mineral product is delivered to the consumer, the whole cycle of works is repeated. In order to prevent methane ignition, its concentration is reduced to explosion hazardous one by releasing methane via wells to the surface to consumers.

EFFECT: invention allows increasing the safety and efficiency of mine works owing to using internal energy of mine rock massif.

FIELD: mining.

SUBSTANCE: underground development method of the Elginsky coal deposit involves separation of the deposit into upper and lower formations, performance of paired tunnels and paired inclined working-outs, use of one branch of inclined working-outs and tunnels for coal transportation from loading points to coal-preparation plant, development of the deposit using an underground method sequentially in downstream order. Paired tunnels are performed on the lowest formation H2 of the northern deposit part to geological breakdown; cross galleries are made after geological breakdown out of tunnels transversely to the formation spread of the south-eastern part; those formations are opened with inclined shafts and worked out with a storeyed development system with coal transportation via inclined winzes and slopes to cross galleries, and then tunnels.

EFFECT: invention allows ensuring the efficiency of development of the south-eastern part of the deposit, complete extraction of coal and possibility of applying that method at any stage of the deposit development.

2 dwg

FIELD: mining industry.

SUBSTANCE: method includes driving of layer transporting and ventilation mines along soil and ceiling of bed, in massive and in extracted space, cutting of cleaning mines in cross-section of bed at angle of 27°, mechanized delivery of coal along bed mines to coal furnaces and vertical dropping of coal to furnaces. Extraction of slanted transverse bed is performed along bed diagonals having direction to horizon at angle of 27°, to provide for free sliding of coal without degradation. Delivery of coal from cleaning mine placed at angle of 60° to layer mine, to back field mine is performed by self-delivery from any place of extraction field along layer mine, field coal-lowering mine and field slanting coal furnace, being at angle of 27° to horizon. Field slanted coal furnaces are placed at distance from one another along 20 m normal. Field coal mines in form of fans of three mines are connected on field slanted coal furnaces at distance of fan start from one another of 60 m with output of mines ends to each layer mine of group of three above-lying slanted-transverse layers for whole diagonal length of extraction field at distance between mines outputs along layer soil of 60 m. Ceiling of cleaning mines may be supported without load, utilizing mechanical traction on the side of ventilation furnaces for pressing moveable support tool to layer ceiling.

EFFECT: higher efficiency.

2 cl, 3 dwg

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