CN2514304Y

CN2514304Y - Low temp gas blast device

Info

Publication number: CN2514304Y
Application number: CN 01279237
Authority: CN
Inventors: 张海成
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-12-19
Filing date: 2001-12-19
Publication date: 2002-10-02
Anticipated expiration: 2011-12-19

Abstract

The utility model discloses a low temperature gas blast device which is suitable for exploitation of various minerals and has the advantages of adjustable pressure and blasting speed, high block production rate, security and reliability. The utility model includes a tubular body; a chemical heat reaction device and easily vaporizable liquid arranged in the tubular body; a liquid injecting and discharging valve body arranged at one end of the tubular body; an energy release device arranged at the other end of the tubular body; and a flying out prevention mechanism connected with a porous energy release head. As the damage to the coal layer when adopting the utility model is small, the block production rate is improved greatly. According to trial, usually the block production rate can be averagely improved by 30 percent around. Besides, both the CO2 and N2 adopted by the utility model retard inflaming, thereby reducing the explosivity of gas, improving the security of mining and being beneficial to the health of workers.

Description

The cryogenic gas blaster

Technical field: the utility model relates to and a kind ofly is used for mining, particularly utilizes gasifying liquid to carry out the device of blasting excavation.

Background technology: at present, because the restriction of production technique, the product piece rate of coal is not high in the coal production.Big gun commonly used is adopted production, because the explosive HTHP, reaction is violent, and moment, impact was big to the coal seam work done, caused the comminuted destruction in coal seam, and it is low therefore to produce the piece rate.Generally about 10-20%, part ultrahard coal can reach about 60% charcoal piece rate, but for counting seldom; In mechanical coal mining, because of cylinder coal cutting technology and efficient requirement, charcoal yield lower (being no more than 10%).Therefore current coal production can't be satisfied the demand of market to the charcoal piece, has also caused the huge waste (because the value of smalls is lower than the value of piece charcoal) of resource inherent value.

For these reasons, the purpose of this utility model be to provide a kind of adapt to all kinds of exploitations of mineral resources, can adjust pressure and detonation velocity and produce piece rate height, safe and reliable cryogenic gas blaster.

Technical scheme: the utility model comprises a tube-shaped main body; Be contained in the chemical heat reaction unit of tube-shaped main body inner chamber and the liquid that is easy to vaporize; Be contained in tube-shaped main body one end, can seal the notes draining valve tube-shaped main body port, that be provided with electrode metal mesh tube positioner; Be contained in the tube-shaped main body other end, can seal the tube-shaped main body port, by rupture disk, cutting head and porous let out can the head forms release the energy device; And with porous let out can head be connected prevent the mechanism that flies out.

Above-mentioned chemical heat reaction unit by the metal mesh opening pipe as the support rack type container, interior dress chemical reaction pocket.Two electrode outlet lines are connected on two electrodes on the electrode lead body in the pocket, or one of a receiving electrode connects shell.Effective screw thread of metal mesh opening or snap joint mode are connected with locator, and locator is provided with two or an electrode, also are sealed and matched with the notes tapping valve when playing the location.It is fixed by the hollow housing screw of annotating on the tapping valve of step through hole big opening end and finishes.

Annotate draining valve and comprise cylindrical (or cylindrical band the is protruding) hollow valve body that can be connected with the tube-shaped main body thread seal, be contained in spool, housing screw, spring, sealing ring in the valve body, also be provided with through hole or step through hole in cylindrical (or cylindrical band is protruding) valve body, and communicate and the parallel liquid injection hole that communicates with valve body is vertical.

Release can device comprise can be connected with tube-shaped main body other end thread seal have a ladder hole release the energy body, the sealing gasket, the thickness that are contained in the body through-holes are the rupture disk of 0.5-3mm, the aperture is the cleavage block (deciding can save this part when sheet is transferred in the hole when adopting, directly with letting out energy definite aperture) of 5-25mm.Let out and can head can body tip be threaded with releasing, in a deep hole or through hole are arranged, let out can a deep hole or the through hole perisporium several symmetric arrays are arranged let out the energy hole.

End the aircraft structure with thread connecting mode with let out and can link to each other by head, its objective is that the extrapolability of gas generation when preventing explosion makes main body fly from the coal hole at home and abroad, and double fixing blaster when doing top coal caving.

Ending the aircraft structure comprises and lets out the cylinder that the energy head thread is connected, on cylinder, have a terraced trench with the cartridges parallel direction, the groove part is got through up and down, in groove, fix a rotary eccentric wheel with pinning, eccentric eccentric part band tooth, eccentric wheel can rotate in groove around pinning within the specific limits.

The liquid that is easy to vaporize in the tube-shaped main body is carbon dioxide or nitrogen.

During use, from the notes leakage fluid dram injection liquid CO 2 or the N2 of blaster, because all shutoff of main body two ends, liquid that can not flows out.In installing to the boring of accomplishing fluently of blaster being packed into after a certain amount of, with lead-in wire the electrode of main body is connected, with battery or mining exploder the chemical material in the main body is excited and to light, because temperature raises, the liquid in the blaster heats up rapidly, vaporizes, when pressure reaches setting pressure, the rupture disk fracture, pressure is by letting out the porous on the energy head, multi-direction ejection at a high speed around boring to the ore bed work done, makes it avalanche.Compare with explosive, have low temperature, slow effect of pressing, thus destructiveness reduce greatly, thereby the piece rate improves greatly, through test, product piece rate generally can on average improve about 30%.Can make the multiple model of different length according to actual needs, the ore body of different hardness is changed setting pressure and lets out can speed, and it is just right that the pressure-speed adjustment is controlled at, to reach the purpose of high yield piece rate.

The utility model when explosion since pressure discharge slow relatively, very little to the coal mine roof plate destructiveness; CO2, N2 are fire-retardant, or fire-suppressant gas, have reduced the explosivity of gas, have improved mining safety, and chemical reaction material and CO2, N2 have no side effect, and help workers ' health.

Description of drawings:

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

Fig. 1 is a structure diagram of the present utility model;

Fig. 2 is the structure diagram of several forms of tube-shaped main body in the utility model;

Fig. 3 is a structure diagram of annotating tapping valve;

Fig. 4 is an another kind of structure diagram of annotating tapping valve;

Fig. 5 is hollow housing screw;

Fig. 6 is the connection positioner of electrode lead body and metal mesh opening pipe;

Fig. 7 is several different sealings, the locate mode in Fig. 3 valve body;

Fig. 8 connects the several multi-form of positioner among Fig. 6;

Fig. 9 be electrode draw several multi-form;

Figure 10 is several sealing gaskets that electrode is drawn sealing;

Figure 11 is several different structure sketches of electrode protection lid;

Figure 12 is two kinds of different structure sketches releasing the energy device;

Figure 13 is the third structure diagram of releasing the energy device;

Figure 14 is metal mesh opening pipe and local exploded view;

Figure 15 is chemical reaction pocket figure;

Figure 16 is the main element figure that ends the aircraft structure;

Figure 17 is an eccentric structure diagram among Figure 16;

Figure 18 is the structure diagram of pinning among Figure 16.

As shown in the figure: in Fig. 1, the low temperature blaster consists of the following components, and 1 is tube-shaped main body, and its left end is threaded and annotates tapping valve 2, and right-hand member is threaded and releases energy device 3; The right-hand member of releasing energy device 3 is threaded and ends aircraft structure 5; Thermal reaction apparatus 4 is fixed on to be annotated on the tapping valve, and the main body of thermal reaction apparatus 4 stretches into the inner chamber of tube-shaped main body 1.

Fig. 2 is the several multi-form of blaster tube-shaped main body 1, and last figure is an I.S.S, and two ends are identical; In figure be the external screw thread formula, the two ends difference, the inner chamber of the outside of middle figure right-hand member and figure below right-hand member is the bottleneck formula, adopting figure below to save to release can body 43, and directly by let out can 46 and tube-shaped main body 1 be used, have designs simplification, reasonable.Several forms can be used in mixing alternate with each other among the figure, grasp flexibly.

Fig. 3 annotates each of several forms of tapping valve 2 to view, with the

electrode lead body

21 or 22 that can fixedly mount on the protruding cylinder shape valve 7 among Fig. 6 in the utility model.Valve body right-hand member and tube-shaped main body 1 threaded engagement, left end cooperates with hollow housing screw 20 among Fig. 5.Two

orthogonal notes outages

8 and 9 are arranged on the valve body, cooperate sealing ring 17 among Fig. 4, compress sealing screw 18 and can carry out topping up, process is as follows: rupture disk 44 is installed compress sealing, and chemical reaction pocket 64 packed in the metal mesh opening pipe 53, connect two electrodes, metal mesh opening pipe and electrode are drawn positioner be connected with screw thread or quick connected mode.Connect the whole left end step through-hole from the notes tapping valve in back and send in the main body, screw in hollow housing screw, reinforcing compresses.Contact with the step of liquid-filling valve by the conical surface this moment, finishes sealing.Can carry out fluid injection work after finishing above-mentioned steps, step is as follows: unclamp and compress sealing screw 18, liquid enters through step liquid injection hole 9, enters the main body inner chamber again, owing to compress the sealing screw end O-ring seals 17 is housed, and gas can not leak outside; After liquid is full of, tightens and compress sealing screw, follow closely point microstome is shut this moment, promptly finished the inflation task, when handling failure need be drained inner chamber liquid, unclamps and compress sealing screw, gas can be discharged.

Fig. 4 is another form of annotating tapping valve, with Fig. 3 difference be: the fluid injection mode is to be finished jointly by housing screw among the figure 14, spool 15, spring 16 and sealing ring 17, its topping up process is as follows: unclamp housing screw 14, spring 16 backs down spool 15, liquid enters the main body inner chamber through shoulder hole, the through hole parallel with valve body, behind the hydroful, tightens housing screw, the compressing spool is sealed microstome, finishes topping up.When handling failure, can unclamp housing screw gas is discharged; 2, the valve body left end is provided with screw thread or fast joint type electrode protecting cover.

Secondly, also electrode directly can be fixed in the valve body, the metal mesh opening pipe directly is fixed on the valve body right-hand member, the valve body left end is set up the electrode protection lid with screw thread or quick connected mode.Certainly, annotate tapping valve and also can make other form, as the Aviation Connector formula etc.

Fig. 5 annotates the hollow housing screw 20 that the tapping valve left end cooperates with step through-hole, is to draw and the positioner 21 of metal mesh opening pipe 53 or 22 settings for the electrode among Fig. 6.The right-hand member screw thread is used for fixing 21 or 22, and left end band quadrate part is divided into operation setting, and left end internal thread or quick connected mode cooperate the electrode protecting cover.

Fig. 6 is the connection positioner of electrode lead body and metal mesh opening pipe 53, can make forms such as single hole two electrodes, single hole single electrode, diplopore bipolar electrode, also can make external screw thread 21 forms or internal thread 22 forms.Its right-hand member cooperates with metal mesh opening pipe 53 screw threads or quick connected mode, and left end portion is to cooperate with hollow housing screw guide-localization, and there are one or two through holes in the centre, is used for fixing electrode.

Fig. 7 is several forms of annotating step part in the tapping valve step through-hole parallel with cone, (1), adopt 23 forms when adopting the plane cushioning to seal; (2), when adopting cone and stepped hole to compress sealing, adopt 24 or 25 forms; (3), when the cylindrical that adopts the circular cone type stepped hole with positioner compresses when sealing, adopt 26 forms.

Fig. 8 is other several forms of positioner 21, respectively with Fig. 7 in annotate the step through-hole of tapping valve several forms match, promptly 27 cooperate with 23, also can cooperate with 26; 28 or 29 with Fig. 7 in 24,25 match, all can realize the purpose of locating, sealing.

Fig. 9 is several forms of electrode, and last figure is a concentric type bipolar electrode ejector, and 31 is interior electrode among the figure, and 30 is external electrode, and 32 are lead-in wire hold-down screw or nut, and 37 is the external electrode sealing gasket, and 38 is the electrode sealing pad.The interface insulating materials of inside and outside electrode.During assembling the body electrode is passed on annotating draining valve or the through hole of locator, major part is in tube-shaped main body one side, and the microcephaly adds felt pad, bullet pad etc. with nut respectively it is tightened in the outside of valve body or locator, and is promptly salable.During use, two lines that the chemical reaction material package is drawn connect inside and outside two electrodes respectively, and with nut it are compressed respectively.In figure be the integral type electrode, 38 is sealing gasket, during installation it is passed from the through hole of valve body, and adds insulating barrier outside it, adds felt pad bullet pad or two cap at its left end with nut and fixes and get final product.Figure below is the dismountable type electrode, can process as required its length and the combination, mode is the same, promptly penetrate valve body or positioner after, skin adds insulation, left end adds felt pad, bullet pad or two cap to be fixed, also can make one removable, one is processed in the other end.

Figure 10 is the sealing gasket that electrode and notes draining valve or locator cooperate usefulness, and 38 two kinds of step through-hole formula sealing gasket 37 and through type sealing gaskets are arranged, and this pad material therefor must be insulation and resistant to elevated temperatures material.

Figure 11 is several forms of electrode protecting cover, and it is positioned at high order end of the present utility model, is used for guard electrode, make electrode use or handling process in do not broken, with screw thread or fast connected mode cooperate with notes tapping valve or hollow housing screw.Parallel with its axis have a step through hole, and aperture is to stay for piercing into contact conductor, and when when general dry environment uses, two thin wires pass and get final product, shown in 39.When using at trickle the big occasion of water in the big or boring, even when wanting to be used in the water, then by forms such as 40,41,42, put an O RunddichtringO in the groove in aperture, the two core water-proof wires suitable with external diameter go between, be connected on two electrodes, again protecting cover and annotate tapping valve or positioner between pad rubber blanket or alternate manner seal, make two electrodes not by water logging or make moist.

Figure 12 is for releasing the structure diagram of energy device in the utility model, release and to be threaded with tube-shaped main body by body 51 left ends, release and to communicate into shoulder hole about chamber body, the right-hand member inner chamber is placed rupture disk 44, cutting head 45, and let out by being threaded can 46, let out can 46 deep hole or through hole perisporium symmetric arrays several let out can hole 47 and 48, wherein part is let out can the hole vertical with the person in charge, part is spent less than 90 with person in charge's angle, also can be all vertical with the person in charge.Sealing gasket 44 also can save need not.Cutting head 45 also can be made 50 shapes, its right-hand member machining screw can 46 cooperates with letting out, can adopt during use: 1, decide the hole and transfer chip, be that the cutting head aperture is constant, hardness according to blasting medium is changed rupture disk, can make the typing series rupture disk of different size, use to be applicable to various occasions.2, hole, sheet formula can be adjusted the aperture of cutting head 45 and the setting pressure of rupture disk as required, make burst pressure and gas efflux time just right.3, also but stator is transferred the hole, and promptly rupture disk is constant, changes burst pressure with the mode that changes the cutting head aperture.

Figure 13 be release can device another kind of form, release and can body 51 left ends be processed into internal thread and can match with tube-shaped main body.Rupture disk 44 is directly put into and is released the energy body, adopt and decide to be processed as definite internal diameter by 46 a left end internal diameter with letting out when sheet mode is transferred in the hole, and save cutting head 45, can be adjusted to best burst pressure with the mode that changes rupture disk according to different situations separately during use.This method is simpler, and no matter being used for that I.S.S releases can body still be that the external screw thread formula releases can body, all more convenient, suitable.

Figure 14 is the metal mesh opening pipe 53 that is used to place chemical reaction pocket 64 in the chemical heat reaction unit 4, its left end is processed into internal thread or external screw thread or fast connector and is connected with notes tapping valve 2 or locator, remainder all is processed into mesh-shape, so that make reaction heat pass to liquid rapidly, and reduce to take up room.Secondly, metal mesh opening pipe 53 also can be made other form, as stent-type etc.

Figure 15 is the structure diagram of chemical reaction pocket 64, pocket crust 55 usefulness combustible materials are made, as paper, plastics etc., interior reaction cartridge material 56 seals with the interior initiation small powder bag 57 of adorning in addition at its left end, and this pouch must seal, dress initiating chamical reaction thing 58 in the little pocket, establish resistance wire 59 at the left end of little pocket, resistance wire 59 is drawn small powder bag 57 with lead-in wire 60 after being connected, and draws chemical reaction pocket 64 simultaneously.Whole chemical reaction pocket 64 sealing two ends are not can leak reaction mass 56 for well.During use two lead-in wires 60 and the electrode column of annotating on tapping valve 2 or the locator are connected, and metal mesh opening pipe 53 is connected with notes tapping valve or locator.Chemical reaction pocket 64 can be made by the caloric value difference, and the series specification 5-10 kind that reaction speed is different is to adapt to the exploitation object and the place of different hardness.

Figure 16 is the body construction sketch that Fig. 1 ends aircraft structure 5, its left end screw thread can with Fig. 13 in let out and can 46 be connected, open a step groove parallel with body at body 61 middle parts, the part is open-minded, in order to mounting strap tooth eccentric wheel 62 and pinning 63.During use it is screwed into release in can device let out can 46 on, band tooth eccentric wheel 62 counterclockwise changes in the groove that ends the aircraft structure, tooth is sent in the boring of accomplishing fluently up, dextrorotation is 180 ° when putting in place, allow tooth down, and pull outward, end the aircraft structure this moment and tangle hole wall, when the energising explosion, can stop explosion apparatus integral body from boring, to fly out.In addition, end the aircraft structure and also have an effect to be: when being used for the explosion of caving coal, can be used as fixedly blaster of hook.

Figure 17, Figure 18 are respectively that Figure 16 ends the eccentric wheel 62 in the aircraft structure and the structure diagram of pinning 63, and during assembling, pinning 63 microcephalies have an ommatidium 64, pass pinning with wire, can not exceed oversize, in case influence enters boring.

Claims

1, a kind of cryogenic gas blaster that is used for mining, it is characterized in that: it comprises a tube-shaped main body; Be contained in the chemical heat reaction unit of tube-shaped main body inner chamber and the liquid that is easy to vaporize; Be contained in tube-shaped main body one end and can seal the notes tapping valve that to fix chemical thermal reaction apparatus and electrical source importing device that is provided with in aperture; Be contained in the tube-shaped main body other end can seal the aperture by rupture disk and porous let out can the head forms release the energy device; And with let out the only aircraft structure that can head be connected.

2, cryogenic gas blaster according to claim 1, it is characterized in that: the chemical heat reaction unit by the metal mesh opening pipe be fixed on the electrode lead body of annotating on the tapping valve and be connected, the chemical reaction pocket is contained in the metal mesh opening body, and the lead-out wire of chemical reaction pocket is connected with electrode on the electrode lead body.

3, cryogenic gas blaster according to claim 1, it is characterized in that: annotate the cylinder shape valve that tapping valve comprises the cylindrical or cylindrical band boss that is tightly connected with the tube-shaped main body threaded one end, also be provided with the step through hole that parallels with cylinder shape valve in the circular valve, the big nose end machining screw of through hole.

4, cryogenic gas blaster according to claim 1, it is characterized in that: release can device comprise can be connected with tube-shaped main body other end thread seal have a ladder hole release the energy body, be contained in the rupture disk in the body through-holes, let out the energy head and release and body tip to be threaded, in a deep hole or through hole are arranged, let out can a deep hole or through hole perisporium symmetric arrays several let out can the hole.

5, cryogenic gas blaster according to claim 1, it is characterized in that: end the aircraft structure and comprise and let out the cylinder that the energy head thread is connected, on cylinder, have a terraced trench with the cartridges parallel direction, the groove part is got through up and down, in groove, fix a rotary eccentric wheel with pinning, eccentric eccentric part band tooth, eccentric wheel can rotate in groove around pinning within the specific limits.

6, cryogenic gas blaster according to claim 1 is characterized in that: the liquid that is easy to vaporize in the tube-shaped main body is carbon dioxide or nitrogen.