CN102603438A - Anti-caking additive for expanded explosive and method for preparing anti-caking additive - Google Patents
Anti-caking additive for expanded explosive and method for preparing anti-caking additive Download PDFInfo
- Publication number
- CN102603438A CN102603438A CN2012100602384A CN201210060238A CN102603438A CN 102603438 A CN102603438 A CN 102603438A CN 2012100602384 A CN2012100602384 A CN 2012100602384A CN 201210060238 A CN201210060238 A CN 201210060238A CN 102603438 A CN102603438 A CN 102603438A
- Authority
- CN
- China
- Prior art keywords
- caking additive
- expanded explosive
- expanded
- caking
- explosive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002360 explosive Substances 0.000 title claims abstract description 36
- 239000000654 additive Substances 0.000 title claims abstract description 24
- 230000000996 additive effect Effects 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title abstract description 5
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims abstract description 11
- 229910001634 calcium fluoride Inorganic materials 0.000 claims abstract description 11
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004094 surface-active agent Substances 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 238000001291 vacuum drying Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 3
- 238000002360 preparation method Methods 0.000 claims description 6
- 229920002545 silicone oil Polymers 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims 1
- 238000005474 detonation Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000003860 storage Methods 0.000 abstract description 7
- 239000003921 oil Substances 0.000 abstract description 4
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 238000007873 sieving Methods 0.000 abstract 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 8
- 238000004880 explosion Methods 0.000 description 7
- 239000013543 active substance Substances 0.000 description 4
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Glanulating (AREA)
Abstract
The invention provides an anti-caking additive for expanded explosive and a method for preparing the anti-caking additive. The method includes: taking raw materials, by weight, including 0.1% of fluorocarbon surfactant, 3-4% of silicon oil and 95.9-96.9% of calcium fluoride, crushing the calcium fluoride, subjecting the crushed calcium fluoride to 180-mesh sieving, adding 200kg water, heating while strongly mixing for two hours, vacuum drying, crushing, 180-mesh sieving, and packaging to obtain the anti-caking additive for expanded explosive. The anti-caking additive for expanded explosive has the advantages of stable quality, simplicity in production and low cost, and the produced expanded explosive with the anti-caking additive is better in storage stability, long in storage life, free of caking during storage, high in detonation sensitivity and stable in detonation velocity. The anti-caking additive is used for production of expanded explosive, and the storage life of the expanded explosive can be two years after the anti-caking additive for the expanded explosive is added.
Description
Technical field
The present invention relates to the additive of expanded explosive, specifically is expanded explosive anti-caking additive and preparation method.
Background technology
Expanded explosive has following shortcoming in process of production: (1) expanded explosive very easily lumps; (2) expanded powder charge stability in storage is bad." the anti-caking research of bulking ammonium nitrate explosive on the fully continuous line " article of Institutes Of Technology Of Nanjing has been studied tensio-active agent, oil phase material and wood powder moisture respectively to bulking ammonium nitrate explosive anti-caking influence on the tinuous production.Discover that tensio-active agent, HMP oil phase, low moisture wood powder can reduce the explosive anti-caking, especially best with the preventing blocking effect of tensio-active agent; Adopt tensio-active agent, HMP oil phase and low moisture wood powder can effectively solve under the high humidity environment in summer bulking ammonium nitrate explosive agglomeration problems on the fully continuous line simultaneously, stablize to guarantee product blast and shelf characteric.Obtained good application and practice aborning, but expanded explosive all can there be certain shelf time, caking in the shelf time of storage 1-2, also can occur, stablize thereby influence detonation sensitivity and explosion velocity.
Summary of the invention
The present invention provides a kind of expanded explosive anti-caking additive and preparation method, and purpose is in order to guarantee the shelf time of expanded explosive, behind storage 1-2, do not lump that it is stable also not influence detonation sensitivity and explosion velocity.
Technical scheme of the present invention for this reason is that a kind of expanded explosive anti-caking additive is characterized in that: raw materials by weight is: fluorocarbon surfactant is 0.1%; Silicone oil is 3-4%, and Calcium Fluoride (Fluorspan) is 95.9-96.9%.
Its preparation method is: first with the Calcium Fluoride (Fluorspan) pulverizing, behind 180 mesh sieves, get fluorocarbon surfactant more by weight percentage excessively: 100 grams; Silicone oil is 3-4kg, Calcium Fluoride (Fluorspan) (ore) 65.9-96.9kg, and other adds water 200kg; Heating edge brute force in limit stirs 2 hours final vacuum dryings again; Pulverize, cross 180 mesh sieves, packing promptly makes the expanded explosive anti-caking additive.
Beneficial effect:
The present invention uses in expanded explosive is produced, and the addition in expanded explosive is 0.3-0.8%, and the detonation sensitivity of the expanded explosive of production is good, explosion velocity stable, the shelf lives is long; Do not lump, cost is low, and the expanded explosive of production was measured salient features after 2 years following: induced detonation: 3cm; Brisance is 13mm; Explosion velocity is 3.3 * 103m/s, and quick-fried power is 305ml, has simple, the convenience operation of production technique simultaneously.
Embodiment
The present invention is the expanded explosive anti-caking additive, its preparation method:
1, first with Calcium Fluoride (Fluorspan) (ore) pulverizing, behind 180 mesh sieves, get fluorocarbon surfactant more by weight percentage excessively: 100 grams; Silicone oil is 3-4kg, Calcium Fluoride (Fluorspan) (ore) 65.9-96.9kg, and other adds water 200kg; Heating edge brute force in limit stirs 2 hours final vacuum dryings again; Pulverize, cross 180 mesh sieves, packing promptly makes the expanded explosive anti-caking additive;
2, mix the expanded explosive of this expanded explosive anti-caking additive 0.3-0.8% that makes and 99.7%-99.2% 10 minutes, evenly back powder charge, packing promptly make the expanded explosive product.
The product standard of anti-caking additive is:
1. outward appearance: grey powder;
2. fineness: 100% crosses 180 mesh sieves;
3. density: 1.2-1.3 g/cm
3
Result of use: be added with the expanded explosive that anti-caking additive of the present invention is produced, performance is following:
Induced detonation: 6cm (￠ 32mm powder stick);
Charge density: 0.90g/cm
3
Brisance: 15mm (density 1.00 g/cm
3);
Explosion velocity: 3.5 * 10
3M/s (measure, density: 1.02 g/cm by ￠ 32mm powder stick
3);
Quick-fried power: 315ml.
Wherein national sector standard is that performance is following in six months:
Induced detonation: >=3cm;
Charge density: 0.80-1.00g/cm
3
Brisance: >=12mm;
Explosion velocity: >=3.2 * 103m/s;
Quick-fried power: >=298ml.
It is following to use the expanded explosive of producing behind this anti-caking additive after 2 years, to measure salient features:
Induced detonation: 3cm,
Charge density: 0.90 g/cm
3
Brisance: 13mm;
Explosion velocity: 3.3 * 103m/s;
Quick-fried power: 305ml.
Comprehensive parameters is that original state or the state after 2 years all are higher than national sector standard relatively.
Claims (2)
1. expanded explosive anti-caking additive, it is characterized in that: raw materials by weight is: fluorocarbon surfactant is 0.1%; Silicone oil is 3-4%, and Calcium Fluoride (Fluorspan) is 95.9-96.9%.
2. the preparation method of an expanded explosive anti-caking additive is characterized in that: earlier Calcium Fluoride (Fluorspan) is pulverized, cross 180 mesh sieves after, take by weighing by weight percentage: fluorocarbon surfactant is 100g again; Silicone oil is 3-4kg, and Calcium Fluoride (Fluorspan) is 95.9-96.9kg, and other adds water 200kg, and 2 hours final vacuum dryings of the powerful stirring of limit heating edge are pulverized again, cross 180 mesh sieves, and packing promptly makes the expanded explosive anti-caking additive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210060238.4A CN102603438B (en) | 2012-03-09 | 2012-03-09 | Anti-caking additive for expanded explosive and method for preparing anti-caking additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210060238.4A CN102603438B (en) | 2012-03-09 | 2012-03-09 | Anti-caking additive for expanded explosive and method for preparing anti-caking additive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102603438A true CN102603438A (en) | 2012-07-25 |
| CN102603438B CN102603438B (en) | 2014-04-30 |
Family
ID=46521295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210060238.4A Expired - Fee Related CN102603438B (en) | 2012-03-09 | 2012-03-09 | Anti-caking additive for expanded explosive and method for preparing anti-caking additive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102603438B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1088947A (en) * | 1992-12-30 | 1994-07-06 | 南京理工大学 | Compound crystal modifier |
| CN101172915A (en) * | 2007-10-08 | 2008-05-07 | 安徽理工大学 | Compounded oil phase for powder nitramon |
| CN102311297A (en) * | 2011-08-24 | 2012-01-11 | 湖北天神实业股份有限公司 | Modified expanded ammonium nitrate explosive |
-
2012
- 2012-03-09 CN CN201210060238.4A patent/CN102603438B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1088947A (en) * | 1992-12-30 | 1994-07-06 | 南京理工大学 | Compound crystal modifier |
| CN101172915A (en) * | 2007-10-08 | 2008-05-07 | 安徽理工大学 | Compounded oil phase for powder nitramon |
| CN102311297A (en) * | 2011-08-24 | 2012-01-11 | 湖北天神实业股份有限公司 | Modified expanded ammonium nitrate explosive |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102603438B (en) | 2014-04-30 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hu Gaolin Inventor after: Wang Yanfeng Inventor after: Zhou Yu Inventor after: Zhang Zheng Inventor after: Huang Jun Inventor after: Feng Yao Inventor before: Hu Gaolin Inventor before: Wang Yanfeng |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HU GAOLIN WANG YANFENG TO: HU GAOLIN WANG YANFENG ZHOU YU ZHANG ZHENG HUANG JUN FENG YAO |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 |