CN103743304A - Explosion device - Google Patents
Explosion device Download PDFInfo
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- CN103743304A CN103743304A CN201410007235.3A CN201410007235A CN103743304A CN 103743304 A CN103743304 A CN 103743304A CN 201410007235 A CN201410007235 A CN 201410007235A CN 103743304 A CN103743304 A CN 103743304A
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Abstract
The invention provides an explosion device. The explosion device comprises an explosion main body which is provided with a liquid storage cavity and an explosion lead, wherein explosion propagation liquid mixed with a liquid explosive or coated on the periphery of a solid explosive is filled into the liquid storage cavity; the explosion lead is connected with the liquid explosive or the solid explosive in the liquid storage cavity. In the explosion device, the explosion propagation liquid mixed with the liquid explosive or coated on the periphery of the solid explosive for storage is formed in the explosion main body, and shock wave produced by explosion of the explosive acts on the explosion propagation liquid with a certain pressure to explode hard rocks. The explosion device is low in price, convenient to operate and good in explosion effect.
Description
Technical field
The present invention relates to Coal Mining Technology field, especially, relate to a kind of demolition set.
Background technology
In China's coal-mine recovery process, can run into the hard coal mine roof plate that is difficult for being caving, when face roof periodic weighting, easily cause device damage and casualties, in order to reach safe high-yield and high-efficiency exploitation requirement, must carry out explosion treatment to this type of top board.At present, drillhole blasting is to be applied to one of the best way in the blasting method of coal mine roof plate.And the mode of existing drillhole blasting is all to add explosive after coal mine roof plate internal drilling, then utilize the force of explosion of explosive self to carry out explosion to coal mine roof plate, traditional blasting method capacity usage ratio is low, penetration power is poor, explosion to boring region is incomplete, needs repeatedly repeatedly to carry out explosion.
Summary of the invention
The object of the invention is to provide a kind of demolition set, poor to solve the demolition effect of existing blasting method, needs the technical problem of repeated multiple times explosion.
For achieving the above object, the invention provides a kind of demolition set, comprise: explosion main body, there is liquid and seal chamber and explosion lead-in wire up for safekeeping, liquid is sealed up for safekeeping and in chamber, is provided with the propagation of explosion liquid that mixes with liquid explosives or be wrapped in solid explosive periphery, explosion lead-in wire be arranged on liquid explosives or the solid explosive that liquid seals up for safekeeping in chamber and be connected.
Further, liquid is sealed up for safekeeping and in chamber, is provided with the sleeve that takes up for fixed solid explosive.
The first end of explosion main body further, is provided with liquid and seals the feed tube that chamber is communicated with up for safekeeping.
Further, on feed tube, be provided with the feed liquor check valve of opening under the first default opening pressure.
The second end of explosion main body further, is provided with liquid and seals the gas-liquid discharge pipe that chamber is communicated with up for safekeeping.
Further, be provided with the outgassing nonreturn valve of opening that is positioned at explosion main body on gas-liquid discharge pipe under the second default opening pressure, the second default opening pressure is less than the first default opening pressure.
Further, the second end of explosion main body is formed with exhaust connected chamber, and exhaust connected chamber and liquid are sealed up for safekeeping between chamber and is interconnected by gas-liquid discharge pipe, and exhaust connected chamber has the interface being communicated with the space outerpace of explosion main body.
Further, demolition set provided by the invention, also comprises: gas-liquid delivery pipe, and gas-liquid delivery pipe runs through liquid seals chamber up for safekeeping, and one end is communicated in the interface of exhaust connected chamber, and the other end extends to outside explosion main body.
Further, gas-liquid delivery pipe is reusable metal tube after blast.
Further, gas-liquid delivery pipe is steel pipe.
Further, demolition set provided by the invention, also comprises: flowmeter, is positioned at outside explosion main body and is arranged on the pipeline being communicated with gas-liquid delivery pipe.
Further, demolition set provided by the invention, also comprises: Pressure gauge, is positioned at outside explosion main body and is arranged on the pipeline being communicated with gas-liquid delivery pipe.
Further, the first end of explosion main body is formed with the first draw-in groove section, and the outer surface of the first draw-in groove section has the first annular slot, and the periphery of the first draw-in groove section is provided with the first hoop coordinating with the first annular slot; The first end of explosion main body is formed with the second draw-in groove section, and the outer surface of the second draw-in groove section has the second annular slot, and the periphery of the second draw-in groove section is provided with the second hoop coordinating with the second annular slot; The first hoop is by the first end sealing of explosion main body, and the second hoop is by the second end sealing of explosion main body, and the middle part of the explosion main body between the first hoop and the second hoop forms liquid and seals chamber up for safekeeping.
Further, the first end of explosion main body is also formed with the second segment being connected with the first draw-in groove section, and second segment is positioned at the first draw-in groove section and away from liquid, seals a side in chamber up for safekeeping, is provided with transmission part in second segment; One end that the close liquid of the first draw-in groove section is sealed chamber up for safekeeping is also provided with for absorbing explosion wave with the elastic buffer ring set of the transmission part in protection second segment.
Further, explosion main body is plastic pipe.
The present invention has following beneficial effect:
The invention provides a kind of demolition set, this demolition set comprises: explosion main body, there is liquid and seal chamber and explosion lead-in wire up for safekeeping, liquid is sealed up for safekeeping and in chamber, is provided with the propagation of explosion liquid that mixes with liquid explosives or be wrapped in solid explosive periphery, explosion lead-in wire be arranged on liquid explosives or the solid explosive that liquid seals up for safekeeping in chamber and be connected.Demolition set provided by the invention, in explosion main body, be formed for sealing up for safekeeping the propagation of explosion liquid that mixes with liquid explosives or be wrapped in solid explosive periphery, the shock wave that explosive charge is produced carries out the explosion of solid rock in the propagation of explosion liquid with certain pressure, cheap, easy to operate, demolition effect is good.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage.Below with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 packs the structural representation of the solid explosive of whole section in the demolition set of the preferred embodiment of the present invention;
Fig. 2 packs the structural representation of the solid explosive of segmentation in the demolition set of the preferred embodiment of the present invention; And
Fig. 3 is the demolition set application state schematic diagram of the preferred embodiment of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
As shown in Figure 1 to Figure 3, the invention provides a kind of demolition set, this demolition set comprises: explosion main body 10, this explosion main body 10 has liquid and seals chamber A and explosion lead-in wire 20 up for safekeeping, liquid is sealed up for safekeeping and in the A of chamber, is provided with the propagation of explosion liquid that mixes with liquid explosives or be wrapped in solid explosive 30 peripheries, explosion lead-in wire 20 be arranged on liquid explosives or the solid explosive that liquid seals up for safekeeping in the A of chamber and be connected.Demolition set provided by the invention, utilize and can utilize shock wave that solid explosive blast produces in propagation of explosion liquid or the direct abundant explosion of carrying out solid rock after propagation of explosion liquid is mixed with liquid explosives with certain pressure around, cheap, easy to operate, demolition effect is good, can extensive use and multiple explosion occasion.
If filling liquid explosive, so can be directly adds liquid explosives and propagation of explosion liquid to liquid and seals up for safekeeping in the A of chamber.If employing solid explosive, needs solid explosive to be fixed.In such cases, solid explosive should adopt the explosive of resistance to water, and one side affects explosive effect.Following realization is fixing to solid explosive, a thin bar or miscellaneous part can in sealing chamber A up for safekeeping, liquid be set, then solid explosive is fixed on (on pasting) in this thin bar, then the thin bar that is fixed with solid explosive is installed in explosion main body 10, then to liquid, seal up for safekeeping in the A of chamber and be filled with the propagation of explosion liquid with certain pressure, prepare explosion.Propagation of explosion liquid should adopt the mobile liquid that compressibility is very low, and the running water that for example can adopt explosion scene easily to find is realized the repeatedly effect of Explosive Shock Wave or all with emulsion, replaces propagation of explosion liquid to realize more excellent demolition effect.
For the better effects if that solid explosive is installed, liquid is sealed up for safekeeping to be provided with in the A of chamber and is taken up sleeve 70 for fixed solid explosive 30.Take up sleeve 70 and can adopt plastic conduit.Take up sleeve 70 and adopt seal form, prevent from having the entering of propagation of explosion liquid of certain pressure, cause the pressure release of propagation of explosion liquid.Charge structure can by explosion need to adopt decking, also can take up the interior rectangular whole powder charge of sleeve 70, the one end that takes up sleeve 70 can be fixed on by the mode of clamping in explosion main body 10.
After solid explosive is installed, need to seal up for safekeeping and in the A of chamber, be filled with the propagation of explosion liquid with certain pressure or the emulsion that is filled with liquid when not adopting solid explosive to liquid.The first end of explosion main body for this reason, 10 is provided with liquid and seals the feed tube 41 that chamber A is communicated with up for safekeeping.
On feed tube 41, be provided with the feed liquor check valve 43 of opening under the first default opening pressure.Utilize check valve can guarantee that liquid enters into liquid and seals up for safekeeping after the A of chamber and can not leak.
In order to make to be filled into the liquid that liquid seals up for safekeeping in the A of chamber, have certain pressure and fully contact with solid explosive, the second end of explosion main body 10 is provided with liquid and seals the gas-liquid discharge pipe 51 that chamber A is communicated with up for safekeeping.In the process of actual explosion, after holing on coal mine roof plate 90, by the first end of explosion main body 10 down, the second end of explosion main body 10 is extend in boring upward, now, liquid is sealed the second end that gas in the A of chamber is concentrated in explosion main body 10 up for safekeeping, then by gas-liquid discharge pipe 51, discharges.When gas-liquid discharge pipe 51 is discharged liquid constantly, illustrate that the gas that liquid is sealed up for safekeeping in the A of chamber discharged up hill and dale.In order to realize, the gas of gas-liquid discharge pipe 51 discharges or the situation of liquid are monitored, demolition set provided by the invention also comprises flowmeter 57 and Pressure gauge 59, and this flowmeter 57 and Pressure gauge 59 are positioned at outside explosion main body 10 and are arranged on the pipeline being communicated with gas-liquid delivery pipe 55.When observing the numerical value continous-stable outflow of flowmeter 57 and the numerical stability of Pressure gauge 59, illustrate that the air in explosion main body 10 drains, now the output pipe 52 being connected with gas-liquid discharge pipe 51 is sealed.
For fear of air, through gas-liquid discharge pipe 51, entering into liquid seals up for safekeeping in the A of chamber again, and prevent that liquid from sealing the liquid generation pressure release in the A of chamber up for safekeeping, on gas-liquid discharge pipe 51, be provided with the outgassing nonreturn valve 53 of opening that is positioned at explosion main body 10 under the second default opening pressure, and the second default opening pressure is less than the first default opening pressure.That is to say, the opening pressure of outgassing nonreturn valve 53 is necessarily less than the opening pressure of feed liquor check valve 43, and difference is between the two unsuitable excessive, prevents from causing pressure release.
The second end of explosion main body 10 is also formed with exhaust connected chamber B, and exhaust connected chamber B and liquid are sealed up for safekeeping between the A of chamber and is interconnected by gas-liquid discharge pipe 51, and exhaust connected chamber B has the interface being communicated with the space outerpace of explosion main body 10.For the gas and the mixing material that enter in exhaust connected chamber B are discharged outside explosion main body 10, demolition set provided by the invention also comprises gas-liquid delivery pipe 55.Gas-liquid delivery pipe 55 runs through liquid seals chamber A up for safekeeping, and one end of gas-liquid delivery pipe 55 is communicated in the interface of exhaust connected chamber B, and the other end extends to outside explosion main body 10.In order to improve recycling rate of waterused, gas-liquid delivery pipe 55 is reusable metal tube after blast.As a kind of concrete embodiment, gas-liquid delivery pipe 55 is steel pipe.The straight well of steel pipe is less, and this steel pipe is as the passage of discharging air, propagation of explosion liquid mixture.
In addition, the first end of explosion main body 10 is formed with the first draw-in groove section, and the outer surface of the first draw-in groove section has the first annular slot, and the periphery of the first draw-in groove section is provided with the first hoop 61 coordinating with the first annular slot; The first end of explosion main body 10 is formed with the second draw-in groove section, and the outer surface of the second draw-in groove section has the second annular slot, and the periphery of the second draw-in groove section is provided with the second hoop 63 coordinating with the second annular slot; The first hoop 61 is by the first end sealing of explosion main body 10, and the second hoop 63 is by the second end sealing of explosion main body 10, and the middle part of the explosion main body 10 between the first hoop 61 and the second hoop 63 forms liquid and seals chamber A up for safekeeping.
All damaged for fear of all parts, improve the recycling rate of waterused of parts, the first end of explosion main body 10 is also formed with the second segment being connected with the first draw-in groove section, and second segment is positioned at the first draw-in groove section and away from liquid, seals a side of chamber A up for safekeeping, is provided with transmission part in second segment; One end that the close liquid of the first draw-in groove section is sealed chamber A up for safekeeping is also provided with for absorbing explosion wave with the elastic buffer ring set 65 of the transmission part in protection second segment.
In fact, above-mentioned explosion main body 10 is plastic pipe.
Demolition set provided by the invention, utilizes expandable plastic pipe (explosion main body 10) the environmental sealing explosive of pressure-bearing; The propagation of explosion liquid that packs pressure-bearing in plastic pipe into; Plastic pipe can be discharged inner air, is full of propagation of explosion liquid completely, and gives the fluid pressure that explosion needs; In demolition set, be provided with elastic buffer ring set 65 and can realize the recycling of partial devices.
Technical scheme of the present invention is as following: according to explosion, require the scope of control to determine the length of explosion main body 10, after selected, determine the charging means in taking up sleeve 70, the length of the segments of decking and position thereof, whole section of powder charge, installs initiator and corresponding wire (explosion lead-in wire 20); After powder charge, by taking up sleeve 70 sealing, prevent that entering of propagation of explosion liquid from causing explosive to lose efficacy; Explosion main body 10 utilizes first hoop 61 at two ends and the second hoop 63 seal and fix, and can be caoutchouc elasticity circle before this by elastic buffer ring set 65() install; Install after good and sound and be put in boring, then carry out feed tube 41, explosion lead-in wire 20 neatly to draw drilling orifice, with stemming, carry out closely knit sealing of hole; Liquid flowing valve (propagation of explosion liquid can adopt underground water on the spot), opens feed liquor check valve 43 after arriving certain pressure, injects propagation of explosion liquid, until plastic pipe is micro-swollen state, and circular plastic pipe is crowded with full borings, makes the inside and outside air in hole isolated; After overpressure reaches certain value, open exhaust check valve 53, the opening pressure of exhaust check valve 53 is necessarily less than the opening pressure of feed liquor check valve 43, and difference is unsuitable excessive between the two, prevents from causing pressure release; When final vacuum check valve 53 is opened, the air that liquid is sealed up for safekeeping in the A of chamber starts outer row, air from exhaust check valve 53 through exhaust connected chamber B, by gas-liquid delivery pipe 55(steel pipe) outer row, input along with propagation of explosion liquid, liquid is sealed air in the A of chamber up for safekeeping and is reduced gradually, the mixture of air and propagation of explosion liquid can be discharged along with steel pipe afterwards, in outlet, there will be desultory liquid stream, when observing the outflow of fluid continous-stable and Pressure gauge 59 numerical stability, illustrate that the air in boring drains, and now seals the sealing of finishing device to exhaust pipe mouth; After sealing completely, in powder charge aperture, take to lay after the flame proof measures such as isolated blast water bottle, just can ignite.After Environmental security, partial devices is reclaimed.
In plastic pipe, for sealing circular sleeve 70 employings that take up of explosive, there is the plastic material of some strength and toughness, and be isometrical, can carry certain pressure.In plastic pipe, the pressure of propagation of explosion liquid will, according to the hard situation of explosive and coal mine roof plate 90, be determined the pressure of propagation of explosion liquid.Propagation of explosion liquid adopts the very low mobile liquid of compressibility realize the repeatedly effect of Explosive Shock Wave or all with emulsion, replace propagation of explosion liquid to realize more excellent demolition effect.
The feed liquor check valve 43 and the exhaust check valve 53 that are arranged on explosion main body 10 two ends adopt adjustable check valve, control the volume after plastic pipe expands, guarantee that plastic pipe fully contacts with the hole wall of boring, reach predetermined pressure, break off contacting with extraneous air in boring.
Elastic buffer ring set 65 adopts the larger plastic washers of elasticity, has enough elasticity to absorb the shock wave energy that arrives explosion main body 10 first end terminations.The overall diameter of elastic buffer ring set 65 is slightly larger than the overall diameter of termination, between termination external diameter and boring internal diameter, prevents that shock wave from causing damage to the termination of demolition set, and protection equipment, realizes the recycling of this part of demolition set.
In the aperture of boring, to carry out lapping or settle isolated blast water bottle or both combine the flame proof measure of employing, prevent that collapsing of explosion and crushing block from penetrating.
Demolition set provided by the invention is the liquid pressure-bearing blasting method for the employing of tight roof rock under coal mine.In boring, both can adopt explosive charge by propagation of explosion liquid or adopt emulsion stack explosion to realize the full hole explosion of boring, the impact energy producing by explosive blasting or the effect stack producing with emulsion reach the object of abundant explosion tight roof, can realize by propagation of explosion fluid pressure in total amount, position and the plastic pipe of change explosive the different explosion requirements of tight roof simultaneously.Demolition set provided by the invention is cheap, easy to operate, and production technology is simple, and demolition effect is good, can produce at the scene extensive popularization.Need explanation shelves, no matter adopt solid explosive or emulsion, all need propagation of explosion liquid, propagation of explosion liquid is placed on liquid and seals the transmission stack of carrying out explosion energy in the A of chamber up for safekeeping.
Utilize demolition set provided by the invention, can realize tight roof Blasting Control, concrete implementation step is as follows:
The first, according to explosion, require the scope of control to determine the length of explosion main body 10, after selecting, determine the charging means in taking up sleeve 70, the length of the segments of decking and position thereof, whole section of powder charge, installs initiator and corresponding explosion lead-in wire 20; After powder charge, explosion main body 10 sealing is prevented to entering of propagation of explosion liquid cause explosive to lose efficacy; Expansion plastic pipe utilizes the first hoop 61 of two ends and the second hoop 63 seal and fix, and before this elastic buffer ring set 65 is installed; After demolition set installs, be put in boring, then carry out liquid injection pipe, explosive lead-in wire 13 neatly to draw drilling orifice, with stemming, carry out closely knit sealing of hole;
The second, open propagation of explosion liquid input valve (propagation of explosion liquid can adopt underground water on the spot), after arrival certain pressure, open feed liquor check valve 43, inject propagation of explosion liquid, until explosion main body 10 is micro-swollen state, and cylindrical plastic pipe is crowded with full borings, makes the inside and outside air of boring isolated; After overpressure reaches certain value, open exhaust check valve 53, the opening pressure of exhaust check valve 53 is necessarily less than the opening pressure of feed liquor check valve 43, and difference is unsuitable excessive between the two, prevents from causing pressure release;
The 3rd, when exhaust check valve 53 is opened, the air that liquid is sealed up for safekeeping in the A of chamber starts outer row, air from exhaust check valve 53 through exhaust connected chamber B, by the outer row of gas-liquid delivery pipe 55, input along with propagation of explosion liquid, inner air tube reduces gradually, the mixture of air and propagation of explosion liquid can be discharged along with gas-liquid delivery pipe 55 afterwards, in outlet, there will be desultory liquid stream, when observing the numerical value continous-stable outflow of flowmeter 57 and the numerical stability of Pressure gauge 59, illustrate that the air in boring drains, now the outlet of the output pipe 52 being connected with gas-liquid delivery pipe 55 is sealed, complete the sealing of demolition set,
The 4th, after sealing completely, at the place, aperture that the boring of demolition set is housed, take to lay after isolated blast water bottle 80 measures such as flame proof such as grade, just can ignite;
The 5th, after explosion completes, after Environmental security, partial devices is reclaimed.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (15)
1. a demolition set, is characterized in that, comprising:
Explosion main body (10), there is liquid and seal chamber (A) and explosion lead-in wire (20) up for safekeeping, described liquid is sealed up for safekeeping and in chamber (A), is provided with the propagation of explosion liquid that mixes with liquid explosives or be wrapped in solid explosive (30) periphery, described explosion lead-in wire (20) be arranged on described liquid and seal chamber (A) interior liquid explosives or solid explosive up for safekeeping and be connected.
2. demolition set according to claim 1, is characterized in that,
Described liquid is sealed up for safekeeping to be provided with in chamber (A) and is taken up sleeve (70) for fixing described solid explosive (30).
3. demolition set according to claim 1, is characterized in that,
The first end of described explosion main body (10) is provided with described liquid and seals the feed tube (41) that chamber (A) is communicated with up for safekeeping.
4. demolition set according to claim 3, is characterized in that,
On described feed tube (41), be provided with the feed liquor check valve (43) of opening under the first default opening pressure.
5. demolition set according to claim 4, is characterized in that,
The second end of described explosion main body (10) is provided with described liquid and seals the gas-liquid discharge pipe (51) that chamber (A) is communicated with up for safekeeping.
6. demolition set according to claim 5, is characterized in that,
On described gas-liquid discharge pipe (51), be provided with the outgassing nonreturn valve (53) of opening under the second default opening pressure that is positioned at described explosion main body (10), the described second default opening pressure is less than the described first default opening pressure.
7. demolition set according to claim 6, is characterized in that,
The second end of described explosion main body (10) is formed with exhaust connected chamber (B), described exhaust connected chamber (B) and described liquid are sealed up for safekeeping between chamber (A) and are interconnected by described gas-liquid discharge pipe (51), and described exhaust connected chamber (B) has the interface being communicated with the space outerpace of described explosion main body (10).
8. demolition set according to claim 7, is characterized in that, also comprises:
Gas-liquid delivery pipe (55), described gas-liquid delivery pipe (55) runs through described liquid seals chamber (A) up for safekeeping, and one end is communicated in the interface of described exhaust connected chamber (B), and the other end extends to outside described explosion main body (10).
9. demolition set according to claim 8, is characterized in that,
Described gas-liquid delivery pipe (55) is reusable metal tube after blast.
10. demolition set according to claim 9, is characterized in that,
Described gas-liquid delivery pipe (55) is steel pipe.
11. demolition sets according to claim 8, is characterized in that, also comprise:
Flowmeter (57), is positioned at outside described explosion main body (10) and is arranged on the pipeline being communicated with described gas-liquid delivery pipe (55).
12. demolition sets according to claim 11, is characterized in that, also comprise:
Pressure gauge (59), is positioned at outside described explosion main body (10) and is arranged on the pipeline being communicated with described gas-liquid delivery pipe (55).
13. demolition sets according to claim 1, is characterized in that,
The first end of described explosion main body (10) is formed with the first draw-in groove section, and the outer surface of described the first draw-in groove section has the first annular slot, and the periphery of described the first draw-in groove section is provided with the first hoop (61) coordinating with described the first annular slot;
The first end of described explosion main body (10) is formed with the second draw-in groove section, and the outer surface of described the second draw-in groove section has the second annular slot, and the periphery of described the second draw-in groove section is provided with the second hoop (63) coordinating with described the second annular slot;
Described the first hoop (61) is by the first end sealing of described explosion main body (10), described the second hoop (63) is by the second end sealing of described explosion main body (10), and the middle part of the described explosion main body (10) between described the first hoop (61) and described the second hoop (63) forms described liquid and seals chamber (A) up for safekeeping.
14. demolition sets according to claim 13, is characterized in that,
The first end of described explosion main body (10) is also formed with the second segment being connected with described the first draw-in groove section, and described second segment is positioned at described the first draw-in groove section and away from described liquid, seals a side in chamber (A) up for safekeeping, in described second segment, is provided with transmission part;
One end that the close described liquid of described the first draw-in groove section is sealed chamber (A) up for safekeeping is also provided with for absorbing explosion wave to protect the elastic buffer ring set (65) of the transmission part in described second segment.
15. according to the demolition set described in any one in claim 1 to 14, it is characterized in that,
Described explosion main body (10) is plastic pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410007235.3A CN103743304B (en) | 2014-01-07 | 2014-01-07 | Demolition set |
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| CN201410007235.3A CN103743304B (en) | 2014-01-07 | 2014-01-07 | Demolition set |
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| CN103743304A true CN103743304A (en) | 2014-04-23 |
| CN103743304B CN103743304B (en) | 2015-10-07 |
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| CN104535211A (en) * | 2014-12-19 | 2015-04-22 | 西安近代化学研究所 | Thermocouple protecting device suitable for fireball response temperature testing in blast field |
| CN105258584A (en) * | 2015-11-20 | 2016-01-20 | 葛洲坝易普力湖北昌泰民爆有限公司 | Air spacer |
| CN111472743A (en) * | 2020-04-14 | 2020-07-31 | 西安闪光能源科技有限公司 | Composite energy-containing rod for generating controllable shock waves and manufacturing method thereof |
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| Publication number | Publication date |
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| CN103743304B (en) | 2015-10-07 |
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