CN103193566A - Liquid oxygen explosive composite and liquid oxygen explosive - Google Patents
Liquid oxygen explosive composite and liquid oxygen explosive Download PDFInfo
- Publication number
- CN103193566A CN103193566A CN2013101341367A CN201310134136A CN103193566A CN 103193566 A CN103193566 A CN 103193566A CN 2013101341367 A CN2013101341367 A CN 2013101341367A CN 201310134136 A CN201310134136 A CN 201310134136A CN 103193566 A CN103193566 A CN 103193566A
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- CN
- China
- Prior art keywords
- oxyliquit
- liquid oxygen
- combustiblematerials
- composition
- explosive
- Prior art date
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- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000002360 explosive Substances 0.000 title abstract description 17
- 239000002131 composite material Substances 0.000 title abstract 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 30
- 239000011780 sodium chloride Substances 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims description 40
- 239000002817 coal dust Substances 0.000 claims description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 230000003068 static effect Effects 0.000 abstract description 9
- 238000004880 explosion Methods 0.000 abstract description 7
- 230000005611 electricity Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 239000003245 coal Substances 0.000 abstract description 2
- 238000005474 detonation Methods 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract 2
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 24
- 239000003795 chemical substances by application Substances 0.000 description 7
- 239000000843 powder Substances 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000004069 differentiation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a liquid oxygen explosive composite and liquid oxygen explosive, belonging to the technical field of liquid oxygen explosive materials containing fuel and enough oxidants to generate high-speed chemical changes after being exploded to generate substances used for detonation. A liquid oxygen explosive composite comprises liquid oxygen and a combustible, wherein the combustible is composed of 50-70% by mass of pulverized coal and 30-50% by mass of wet sawdust or combustible fiber, and the wet sawdust is prepared by humidifying sawdust to 5% by using a sodium chloride solution with concentration of 20%. The liquid oxygen explosive composite and liquid oxygen explosive disclosed by the invention have the advantages of preventing generation of static electricity and explosion possibility, reducing the explosive sensitivity and ensuring the explosive to be safer.
Description
Technical field
The invention belongs to and contain fuel and enough oxygenants simultaneously, the back of detonating produces the high speed chemical transformation, produces the material technology field that detonation wave at a high speed can be used for explosion.Be specifically related to a kind of oxyliquit composition and oxyliquit.
Background technology
Mix as absorption agent with flammable porous mass and the high material of carbon content, with the saturated explosive that forms of liquid oxygen, be called oxyliquit.Oxyliquit produces various blast effectiveness, and these effects depend primarily on following factors: the yardstick of the kind of absorption agent and density, fiber (for the brick-shaped absorption agent), degree of grinding (for Powdered absorption agent) and at explosion time liquid oxygen content in explosive mixture.
The principle of oxyliquit blast is identical with conventional explosive, utilizes liquid oxygen to evaporate (the 1L liquid oxygen can become 800 liters gaseous oxygen) easily exactly, and abundant oxidation generates gases such as a large amount of carbonic acid gas, water vapour in moment to make absorption agent.Emit a large amount of heat simultaneously, gas reaches a high temperature, and volume expands suddenly and sets off an explosion.
People are dangerous and complicated operation to the impression of oxyliquit, thereby it is in the use that is under an embargo of China Metal mine system.But the oxyliquit low price, quick-fried power and brisance are big, and have once used new working method and accident did not take place in 4～5 years one time in certain ore deposit of China, and this is to be worth a problem coming into the picture.The security of commenting oxyliquit should be different and different according to drawing agent and loading method, can not with it all negate with a kind of least safety condition.The method of soaking has impact outward, friction, and the danger of spark and static adopts it to have and reliably falls sense, fire prevention and anti-electric measure.In soak method not by impact, rub public spark and the too early explosion hazard that causes.In studying for the rule of static.The subject matter of soaking method in the employing is that the agent bag is soaked into evenly, and its measure is to make the liquid oxygen direction that flows and the direction that oxygen is overflowed not mix throwing mutually.Through certain oxyliquit that transform and that have certain security measures, can promote the use of.
Existing oxyliquit making method is to adopt the papery cartridge bag, and granularity is that coal dust or the carbon black of 0.3-2mm mixes with sawdust, is put in by explosion place after explosive is made in infiltration in the liquid oxygen then and ignites.A lot of drawbacks are arranged like this, 1, powder more greatly in the vaporization of liquid oxygen process easily friction produce static.2, the papery cartridge bag is unfavorable for the static derivation.3, complete be easy to extraneous naked light when moving to blasting point, the mechanical shock contact causes the quick-fried danger of mistake.
Summary of the invention
In order to solve the problems referred to above of existing oxyliquit, a kind of new oxyliquit composition and oxyliquit have been the objective of the invention is to disclose.
The objective of the invention is to be achieved through the following technical solutions:
A kind of oxyliquit composition, comprise liquid oxygen and combustiblematerials, wherein, described combustiblematerials is that the coal dust of 50%-70% and wet saw end or the combustible fibre of 30%-50% are formed by mass percent, 5% sodium chloride solution is contained in the described wet saw end in described wet saw end, and the concentration of this sodium chloride solution is 20%.
The described a kind of oxyliquit composition of technique scheme, wherein, described combustiblematerials is that 60% coal dust and 40% wet saw end or combustible fibre are formed by mass percent.
The described a kind of oxyliquit composition of technique scheme, wherein, the diameter of described coal dust is the 20-30 micron.
The described a kind of oxyliquit composition of technique scheme, wherein, described combustiblematerials is that the wet saw end of 60% coal dust and 40% is formed by mass percent.
The described a kind of oxyliquit composition of technique scheme, wherein, the mass ratio of described liquid oxygen and combustiblematerials is 2: 1.
The described a kind of oxyliquit composition of technique scheme wherein, contains oxygen 99.00%～99.80% in the described liquid oxygen; Optimal technical scheme is to contain oxygen 99.50% in the liquid oxygen.
A kind of oxyliquit comprises pressure vessel, is used for backfill, primer detonator and the oxyliquit composition of sealed pressure vessel, and wherein, described oxyliquit composition is the described composition of above-mentioned arbitrary technical scheme; Described oxyliquit composition is arranged in the pressure vessel, and an end of primer detonator inserts in the combustiblematerials of oxyliquit.This oxyliquit is connected to the safety area by primacord fuse.
The described oxyliquit of technique scheme, wherein, described pressure vessel is metal iron sheet open container.
Oxyliquit of the present invention is made gained by following method:
(1), vertically place a funnel at the pressure vessel center, run through the hole of tube wall in funnelled pipe and the setting of combustiblematerials contact part, the bottom of funnel is sealed;
(2), filling combustiblematerials zone installs primer detonator in pressure vessel;
(3), combustiblematerials poured into carries out powder charge in the container, backfill is carried out to the big gun hole in the powder charge back that finishes; Described combustiblematerials is that the coal dust of 50%-70% and wet saw end or the combustible fibre of 50%-30% are formed by mass percent, and described wet saw contains 5% sodium chloride solution in the end, and the concentration of this sodium chloride solution is 20%; The diameter of described coal dust is the 20-30 micron;
(4), thin-walled airway that bottom sides is opened some apertures inserts in the funnelled pipe, pours liquid oxygen in funnel, the liquid oxygen can is extracted thin-walled airway and funnel after finishing;
(5), the space that produces of funnel tamps again, namely gets oxyliquit.
The method of the described making oxyliquit of technique scheme, wherein, described pressure vessel is metal iron sheet open container.
The method of the described making oxyliquit of technique scheme, wherein, the liquid oxygen that adds in the step (4) and the mass ratio of combustiblematerials are 2: 1.
The method of the described making oxyliquit of technique scheme, wherein, the hole that is arranged on funnelled pipe and combustiblematerials contact part in the step (1) is to go up close form setting according to dredging down.
The method of the described making oxyliquit of technique scheme, wherein, the bottom of funnel is the tip of sealing in the step (1).
The present invention has following beneficial effect:
1, oxyliquit composition of the present invention has adopted the coal dust 50～70% of diameter 20-30 micron, be equipped with 50～30% wet saw end or combustible fibre, the coal dust explosion limit of this specification is 15～45%, and wet saw end and combustible fibre can both effectively prevent the possibility of generation of static electricity and blast.
2, the granularity of coal dust is diameter 20-30 micron in the present composition, this granularity can guarantee detonate moment all coal dusts fully participate in the reaction, the coal dust of this granularity can effectively be built-up in outside the sawdust simultaneously, and the wet saw end is to have certain humidity with the sodium chloride solution humidification in advance can reduce and splash the static of reducing friction and causing.
3, the wet saw end in the present composition is to be 20% sodium chloride solution humidification to 5% in advance with concentration, can effectively reduce the sensitivity of explosive like this, can effectively reduce electric charge and gather and prevent because of the generation of static electricity spark because the salts solution specific conductivity of this concentration is the highest, reduce explosive sensitivity, make explosive safer.
4, oxyliquit of the present invention has adopted uncovered metal to make container and both can effectively derive static, the oxygen of volatilization is fully shed reduce high flow rate to the effect of carrying secretly of powder.
Description of drawings:
1, Fig. 1 is oxyliquit making processes synoptic diagram of the present invention.
Embodiment:
For making technical scheme of the present invention be convenient to understand, below in conjunction with specific embodiment to a kind of method further instruction of making oxyliquit of the present invention.
Embodiment 1:A kind of oxyliquit composition:
A kind of oxyliquit composition, formed by liquid oxygen and combustiblematerials, described combustiblematerials is that 50% coal dust and 50% wet saw end or combustible fibre are formed by mass percent, and described wet saw end is 20% sodium chloride solution humidification to 5% (being to contain 5% sodium chloride solution in the wet saw end) in advance with concentration; The diameter of described coal dust is the 20-30 micron; The mass ratio of described liquid oxygen and combustiblematerials is 2: 1; Contain oxygen 99.00%～99.80% in the liquid oxygen.
Embodiment 2:A kind of oxyliquit composition:
A kind of oxyliquit composition is made up of liquid oxygen and combustiblematerials, and described combustiblematerials is that 70% coal dust and 30% wet saw end or combustible fibre are formed by mass percent, and described wet saw end is 20% sodium chloride solution humidification to 5% in advance with concentration; The diameter of described coal dust is 2030 microns; The mass ratio of described liquid oxygen and combustiblematerials is 2: 1; Contain oxygen 99.50% in the liquid oxygen.
Embodiment 3:A kind of oxyliquit composition:
A kind of oxyliquit composition is made up of liquid oxygen and combustiblematerials, and described combustiblematerials is that 60% coal dust and 40% wet saw end or combustible fibre are formed by mass percent, and described wet saw end is 20% sodium chloride solution humidification to 5% in advance with concentration; The diameter of described coal dust is the 20-30 micron; The mass ratio of described liquid oxygen and combustiblematerials is 2: 1; Contain oxygen 99.00%～99.80% in the liquid oxygen.
Embodiment 4:A kind of oxyliquit:
As shown in Figure 1, a kind of oxyliquit comprises metal iron sheet open container, is used for backfill, primer detonator and the oxyliquit composition of sealed pressure vessel, and described oxyliquit composition is the composition of embodiment 1～3; Described oxyliquit composition is arranged in the metal iron sheet open container, and an end of primer detonator inserts in the combustiblematerials of oxyliquit.
During use, this oxyliquit is connected to the safety area by primacord fuse.
Above-mentioned oxyliquit prepares by following method:
(1), vertically place a funnel at the center of pressure vessel, run through the hole of tube wall, the tip of the bottom of funnel for sealing in funnelled pipe and combustiblematerials contact part according to dredging close form setting down;
(2), filling combustiblematerials zone installs primer detonator in pressure vessel;
(3), combustiblematerials poured into carries out powder charge in the container, backfill is carried out to the big gun hole in the powder charge back that finishes; Described combustiblematerials is that the coal dust of 50%-70% and wet saw end or the combustible fibre of 50%-30% are formed by mass percent, and described wet saw contains 5% sodium chloride solution in the end, and the concentration of this sodium chloride solution is 20%; The diameter of described coal dust is the 20-30 micron;
(4), thin-walled airway that bottom sides is opened some apertures inserts in the funnel, pours liquid oxygen in funnel, the liquid oxygen can is extracted thin-walled airway and funnel after finishing; The liquid oxygen of pouring into and the mass ratio of combustiblematerials are 2: 1;
(5), the space that produces of funnel tamps again, namely gets oxyliquit.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any formal and substantial restriction, all those skilled in the art, in not breaking away from the technical solution of the present invention scope, when can utilizing the above technology contents that discloses, and a little change of making, modify the equivalent variations with differentiation, be equivalent embodiment of the present invention; Simultaneously, the change of any equivalent variations that all foundations essence technology of the present invention is done above embodiment, modify and differentiation, all still belong in the scope of technical scheme of the present invention.
Claims (9)
1. oxyliquit composition, comprise liquid oxygen and combustiblematerials, it is characterized in that: described combustiblematerials is that the coal dust of 50%-70% and wet saw end or the combustible fibre of 30%-50% are formed by mass percent, described wet saw contains 5% sodium chloride solution in the end, and the concentration of this sodium chloride solution is 20%.
2. a kind of oxyliquit composition according to claim 1 and 2 is characterized in that: described combustiblematerials is that 60% coal dust and 40% wet saw end or combustible fibre are formed by mass percent.
3. a kind of oxyliquit composition according to claim 1 and 2, it is characterized in that: the diameter of described coal dust is the 20-30 micron.
4. oxyliquit composition according to claim 1 and 2 is characterized in that: described combustiblematerials is that 60% coal dust and 40% wet saw end or combustible fibre are formed by mass percent.
5. oxyliquit composition according to claim 1 and 2, it is characterized in that: the mass ratio of described liquid oxygen and combustiblematerials is 2: 1.
6. oxyliquit composition according to claim 1 and 2 is characterized in that: contain oxygen 99.00%～99.80% in the described liquid oxygen.
7. oxyliquit composition according to claim 5 is characterized in that: contain oxygen 99.50% in the described liquid oxygen.
8. oxyliquit comprises pressure vessel, is used for backfill, primer detonator and the oxyliquit composition of sealed pressure vessel, and it is characterized in that: described oxyliquit composition is the described composition of arbitrary claim among the claim 1-7; Described oxyliquit composition is arranged in the pressure vessel, and primer detonator inserts in the combustiblematerials of oxyliquit.
9. oxyliquit according to claim 8, it is characterized in that: described pressure vessel is metal iron sheet open container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101341367A CN103193566A (en) | 2013-04-18 | 2013-04-18 | Liquid oxygen explosive composite and liquid oxygen explosive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101341367A CN103193566A (en) | 2013-04-18 | 2013-04-18 | Liquid oxygen explosive composite and liquid oxygen explosive |
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| Publication Number | Publication Date |
|---|---|
| CN103193566A true CN103193566A (en) | 2013-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101341367A Pending CN103193566A (en) | 2013-04-18 | 2013-04-18 | Liquid oxygen explosive composite and liquid oxygen explosive |
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| CN (1) | CN103193566A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105693441A (en) * | 2016-01-31 | 2016-06-22 | 张慧 | Industrial coalbed methane mixture |
| CN114608396A (en) * | 2022-03-21 | 2022-06-10 | 广西国方建设工程有限责任公司 | Method for breaking rock by utilizing air energy and liquid oxygen blasting device |
| CN116178090A (en) * | 2023-03-06 | 2023-05-30 | 神华准格尔能源有限责任公司 | Antifreeze agent for coal-based explosive, low Wen Meiji-resistant explosive and preparation method of antifreeze agent |
| CN116447928A (en) * | 2022-01-10 | 2023-07-18 | 珠海市安盛爆破工程有限公司 | A device for preparing liquid oxygen gas expansion agent in blast hole |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2076279A (en) * | 1933-08-03 | 1937-04-06 | Air Liquide | Liquid oxygen explosive |
| US2297538A (en) * | 1940-01-08 | 1942-09-29 | Denues Arthur Russell Taylor | Liquid oxygen explosive |
| US2872305A (en) * | 1957-10-15 | 1959-02-03 | Great Lakes Carbon Corp | Liquid oxygen explosive and methods for preparing same |
| US3482515A (en) * | 1968-09-13 | 1969-12-09 | John C St Clair | Blasting with liquid oxygen explosives with the aid of captive balloons |
-
2013
- 2013-04-18 CN CN2013101341367A patent/CN103193566A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2076279A (en) * | 1933-08-03 | 1937-04-06 | Air Liquide | Liquid oxygen explosive |
| US2297538A (en) * | 1940-01-08 | 1942-09-29 | Denues Arthur Russell Taylor | Liquid oxygen explosive |
| US2872305A (en) * | 1957-10-15 | 1959-02-03 | Great Lakes Carbon Corp | Liquid oxygen explosive and methods for preparing same |
| US3482515A (en) * | 1968-09-13 | 1969-12-09 | John C St Clair | Blasting with liquid oxygen explosives with the aid of captive balloons |
Non-Patent Citations (2)
| Title |
|---|
| 万纯材: "液氧炸药", 《化学通报》 * |
| 爆破掘进教研组: "关于液氧炸药的几个问题", 《北京钢铁工业学院学报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105693441A (en) * | 2016-01-31 | 2016-06-22 | 张慧 | Industrial coalbed methane mixture |
| CN116447928A (en) * | 2022-01-10 | 2023-07-18 | 珠海市安盛爆破工程有限公司 | A device for preparing liquid oxygen gas expansion agent in blast hole |
| CN114608396A (en) * | 2022-03-21 | 2022-06-10 | 广西国方建设工程有限责任公司 | Method for breaking rock by utilizing air energy and liquid oxygen blasting device |
| CN116178090A (en) * | 2023-03-06 | 2023-05-30 | 神华准格尔能源有限责任公司 | Antifreeze agent for coal-based explosive, low Wen Meiji-resistant explosive and preparation method of antifreeze agent |
| CN116178090B (en) * | 2023-03-06 | 2024-05-28 | 神华准格尔能源有限责任公司 | Antifreeze agent for coal-based explosive, low-Wen Meiji-resistant explosive and preparation method of antifreeze agent |
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