CN2240043Y

CN2240043Y - Chemical expansion coal mining device

Info

Publication number: CN2240043Y
Application number: CN 95218426
Authority: CN
Inventors: 张海成
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-07-22
Filing date: 1995-07-22
Publication date: 1996-11-13
Anticipated expiration: 2005-07-22

Abstract

The utility model provides a carbon block mining device, mining with vapor, comprising a fracturer for carbon blocks which is arranged in a drilled hole and a sealing device which is arranged at the opening of the drilled hole. The fracturer for carbon blocks comprises a tube-shaped main body whose inner chamber is provided with vapor, a fracture disc and a pressure relief head which are arranged on one end of the main body and can seal the opening of the inner chamber of the main body, and an electrode vapour charging valve which is arranged on the other end of the main body. The sealing device comprises a leading screw and combined expanding pieces which are connected with the leading screw and can expand peripherad. The utility model make coal walls break up by heating up, vaporizing, boosting voltage and releasing energy of the vapor which is arranged in the fracturer. The chemical expansion coal mining device which has the advantages of slow action and safety can enhance the carbon block rate 15-30% on the previous footing.

Description

Chemically expansible formula charcoal piece quarrying apparatus

The utility model relates to the colliery underground mining, particularly uses the device of gasifying liquid exploitation charcoal piece in boring.

At present, the coal mining of the middle-size and small-size mine of China is generally adopted based on big gun, and big gun is adopted because the explosive reaction is rapid, instantaneous to the coal seam work done, and is destructive big, so charcoal yield is low, and charcoal piece rate is generally annotated between the 20-60.

Large and medium-sized mine is mined based on comprehensive mechanization equipment, and because of being uses the cutter head coal cutting, charcoal yield is lower, and therefore supply falls short of demand for current charcoal lump coal, can not satisfy the needs in market.

The purpose of this utility model is to provide a kind of charcoal piece quarrying apparatus that improves charcoal yield.

For achieving the above object, the technical solution of the utility model is to design a charcoal piece fracturer and the closing device that is contained in hole month of packing in holing.Charcoal piece fracturer comprises the cast main body with an inner chamber, the vaporizable liquid of the main body of packing into inner chamber, be contained in cast main body one end and can seal the rupture disk of accent in the main body and release of pressure head with porous, be contained in the cast main body other end and can seal the electrode liquid-filling valve of accent in the main body, wherein valve body, spool are respectively power supply two electrodes.

Above-mentioned electrode liquid-filling valve is an one way valve, valve body is a cylinder, thin, the thick through hole in two ends in the middle of having one, adorn a ladder spool in the gross porosity of valve body and cast main body link, the ladder spool stretches into the end of main body inner chamber and adorns a wire electrode, the other end is placed with sealing mat, ladder spool circumference is with insulation sleeve, thin outer shaft sleeve one spring, adorn one in pore in the middle of valve body and the other end gross porosity and have the fluid injection spool that a pore is arranged that communicates with valve body inner bore, in the valve body other end gross porosity filling head and insulation sleeve are housed also.

Closing device in the charcoal piece mining equipment is by a leading screw, can forming to expand part and connector of the combination of circumference expansion of being connected with leading screw.The bloated part of activity that the bloated part of combination in the closing device comprises with threads of lead screw and being connected, cylindrical is the step circular cone, be enclosed within movable expand the part cylindrical and with the fixing part that expands of its watt shape more than 3 of coincideing, be enclosed within the fixing elasticity that the part outside makes of elastomeric material, that circumference is inlayed anti-skidding tooth that the expands part that expands.

The gasifying liquid that is contained in charcoal piece fracturer cast main body inner chamber is CO ₂Or N.

Owing to take above-mentioned measure, during use, inject the liquid CO 2 or the N that can vaporize to charcoal piece fracturer filling head pore, liquid enters the valve body pore through liquid-filling valve in-core hole, and the ladder spool is pushed open, enters cast main body inner chamber.Because aperture, main body inner chamber two ends is sealed, liquid can not outflow.Charcoal piece fracturer placed expand in the good boring outgoing cable line.Closing device is put into the aperture, screw leading screw with special tool, this moment is because the impetus of the movable part cone that expands, the fixing part that expands is expanded to the four sides, and the compressing elasticity part that expands expands outwardly, make it and hole around rib compress, anti-skidding tooth in the bloated part of elasticity is pressed into rib with part simultaneously, can prevent further that the bloated part of elasticity from moving outside sliding, like this, closing device is sealed boring.

Connect power switch, the vaporization that heats up rapidly of liquid in the fracturer, when pressure reaches setting pressure, the rupture disk fracture, pressure is discharged towards periphery by the porous on the release of pressure head, rib is burst apart, because CO2 or N vaporization reaction are slow, not instantaneous work done to rib, therefore little to the coal destructiveness, the charcoal yield height, safe and feasible.

Below in conjunction with accompanying drawing embodiment of the present utility model is further specified.

Fig. 1 is a charcoal piece fracturer assembling drawing in the utility model.

Fig. 2 is a closing device assembling drawing in the utility model.

Among Fig. 1, the main body 5 of charcoal piece fracturer is a tubular type, and a through hole 6 is arranged, and two ends endoporus wall thickness increases.Connect a release of pressure head 1 at cast main body threaded one end, the release of pressure head has a main aperture 2 and the main body inner chamber communicates, and the end circumference has 4 holes to communicate with main aperture, adorns a rupture disk 3 and sealing mat 4 at the release of pressure head with the end that is connected of main body.At the main body other end be threaded an electrode liquid-filling valve and sealing mat 8.The electrode liquid-filling valve comprises having the cylinder valve body 12 that the hole is known a little about at middle thin two ends, be contained in ladder spool 11, sealing mat 18, look nut 19 in valve body and the cast main body link gross porosity, stretch into main body inner chamber end at spool and connect a wire electrode 7 with screw, ladder spool circumference is with insulation sleeve 10, and thin axle place is with compression spring 9; In the middle of valve body, adorn one in pore and the other end gross porosity and have the fluid injection spool 13 that an elongated hole is arranged that communicates with body cavity, in other end gross porosity, also adorn a compression spring 16, filling head 17, fixed cover 14 and insulation sleeve 15 with slightness hole, during fluid injection, liquid is by filling head, fluid injection spool, push the ladder spool open, by spool bottom and around hole enter the main body inner chamber, stop fluid injection after because the effect of sealing mat 18 and spring 9, liquid can not reflux, and has played sealing function.

Among Fig. 2, bloated part 21 circumference of the activity that is threaded with leading screw 20 are the step taper shape, the movable part that expands has the fixing part 22 that expands of 4 pieces watts of shapes to coincide with it outward, the bloated part 23 of elasticity in the fixing part overcoat one usefulness rubber making of expanding, the bloated part circumference of elasticity is inlayed the anti-skidding tooth 24 of 12 steels, 4 heads are that T-shaped bolt 26 links together the step tight fit of connector and leading screw end with fixture 22, the bloated part 23 of elasticity and connector 25.

Claims

1, a kind of chemically expansible formula charcoal piece quarrying apparatus that is used under the coal mine, it is characterized in that, it comprises the charcoal piece fracturer in the boring of packing into and is contained in the closing device of hole month, charcoal piece fracturer comprises the cast main body with an inner chamber, the vaporizable liquid of the main body of packing into inner chamber, be contained in main body one end and can seal the rupture disk of accent in the main body and release of pressure head with porous, be contained in the main body other end and can seal the electrode liquid-filling valve of accent in the main body, wherein valve body, spool are respectively power supply two electrodes.

2, chemically expansible formula charcoal piece quarrying apparatus according to claim 1, it is characterized in that, the valve body of electrode liquid-filling valve is a cylinder, thin in the middle of having one, the through hole that two ends are thick, adorn a ladder spool in the gross porosity of valve body and cast main body link, the ladder spool stretches into the end of main body inner chamber and adorns a wire electrode, the other end is placed with sealing mat, ladder spool circumference is with insulation sleeve, thin outer shaft sleeve one spring, adorn one in pore in the middle of valve body and the other end gross porosity and have the fluid injection spool that a pore is arranged that communicates with valve body inner bore, in the valve body other end gross porosity filling head and insulation sleeve are housed also.

3, chemically expansible formula charcoal piece quarrying apparatus according to claim 1 and 2 is characterized in that, closing device is by a leading screw, can forming to expand part and connector of the combination of circumference expansion of being connected with leading screw.

4, chemically expansible formula charcoal piece quarrying apparatus according to claim 3, it is characterized in that, the bloated part of activity that the bloated part of combination in the closing device comprises with threads of lead screw and being connected, cylindrical is the step circular cone, be enclosed within movable expand the part cylindrical and with the fixing part that expands of its watt shape more than 3 of coincideing, be enclosed within outer, that make of elastomeric material, that circumference the is inlayed anti-skidding tooth elasticity of the fixing part that the expands part that expands.

5, chemically expansible formula charcoal piece quarrying apparatus according to claim 1 and 2 is characterized in that the gasifying liquid in the cast main body inner chamber is CO ₂Or N.