CN102424644B - Expanded ammonium nitrate and preparation method thereof - Google Patents
Expanded ammonium nitrate and preparation method thereof Download PDFInfo
- Publication number
- CN102424644B CN102424644B CN 201110267331 CN201110267331A CN102424644B CN 102424644 B CN102424644 B CN 102424644B CN 201110267331 CN201110267331 CN 201110267331 CN 201110267331 A CN201110267331 A CN 201110267331A CN 102424644 B CN102424644 B CN 102424644B
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- China
- Prior art keywords
- ammonium nitrate
- preparation
- expanded
- machine oil
- explosive
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- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000010721 machine oil Substances 0.000 claims abstract description 20
- 239000004317 sodium nitrate Substances 0.000 claims abstract description 20
- 235000010344 sodium nitrate Nutrition 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229940001516 sodium nitrate Drugs 0.000 claims description 18
- 230000008961 swelling Effects 0.000 claims description 16
- 238000002425 crystallisation Methods 0.000 claims description 9
- 230000008025 crystallization Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 4
- 239000011344 liquid material Substances 0.000 claims description 3
- 239000002360 explosive Substances 0.000 abstract description 23
- 238000005516 engineering process Methods 0.000 abstract description 15
- 238000004880 explosion Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000002341 toxic gas Substances 0.000 abstract description 4
- 238000013467 fragmentation Methods 0.000 abstract description 3
- 238000006062 fragmentation reaction Methods 0.000 abstract description 3
- -1 comprises Chemical compound 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 239000013067 intermediate product Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 9
- 239000012071 phase Substances 0.000 description 8
- 239000000843 powder Substances 0.000 description 8
- 239000002131 composite material Substances 0.000 description 6
- 239000002023 wood Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 231100000331 toxic Toxicity 0.000 description 5
- 230000002588 toxic effect Effects 0.000 description 5
- 239000008346 aqueous phase Substances 0.000 description 4
- 239000002826 coolant Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001007 puffing effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Fertilizers (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The invention relates to an intermediate product for explosive manufacturing and a preparation method thereof, and concretely relates to expanded ammonium nitrate and a preparation method thereof. The invention aims to solve problems that the charging density of explosives produced with traditional technologies is small, the explosion speed is not high, and the amount of toxic gases generated by explosion is large. The expanded ammonium nitrate mainly comprises, by weight, 99.0-99.5% of ammonium nitrate, 0.1-0.5% of sodium nitrate, 0.1-0.5% of machine oil and 0.15-0.2% of an expanding agent. In the production process, a certain amount of sodium nitrate and a certain amount of the machine oil are added in a water phase preparation, so the expanded ammonium nitrate has the advantages of small granularity, easy fragmentation and large density, and the surface activity of the expanding agent is improved. The expanded ammonium nitrate explosive produced in the invention has the characteristics of large charging density, high explosion speed, and small amount of the toxic gases produced in explosion.
Description
Technical field
The present invention relates to a kind of intermediates of making explosive and preparation method thereof, specifically, the present invention relates to a kind of expanded ammonium nitrate and preparation method thereof.
Background technology
Expanded ammonium nitrate is the chief component composition of bulking ammonium nitrate explosive, and the first operation of making bulking ammonium nitrate explosive produces expanded ammonium nitrate exactly.The main component of existing bulking ammonium nitrate explosive comprises expanded ammonium nitrate, composite oil phase, wood powder and flame-cooling agent, its preparation technology mainly is divided into two kinds: a kind of is water oil phase mixture puffing Technology: ammonium nitrate, the swelling agent aqueous solution and composite oil phase carry out expanded crystallization jointly, formation contains the expanded ammonium nitrate of compound oil phase material, then the bulking ammonium nitrate explosive of making after adding a certain proportion of wood powder or flame-cooling agent to mix; Another is single ammonium nitrate aqueous phase solution bulking process: ammonium nitrate, the swelling agent aqueous solution carry out expanded formation expanded ammonium nitrate, then the bulking ammonium nitrate explosive of making after adding a certain proportion of composite oil phase, wood powder or flame-cooling agent to mix.The former is the novel technique of making bulking ammonium nitrate explosive, and the toxic and harmful amount that the explosion velocity of product is high, explosion produces is little, but charge density is little; The latter is traditional Technology, and charge density is little, and the toxic and harmful amount that the product explosion velocity is not high, explosion produces is large.Because the character of composite oil phase and wood powder is more stable, the major cause that causes the explosive product performance difference is the difference of expanded ammonium nitrate quality.Still adopt traditional processing technology more in production application, if major cause is to adopt new technology to need vacuum crystallization machine and spiral mixing machine are undergone technological transformation, change many new equipment, need to drop into substantial contribution.
Therefore on traditional preparation technology's basis, seek a kind of method of improving the physico-chemical property of expanded ammonium nitrate, make the performance of explosive product can draw the advantage of above-mentioned two kinds of Technologies, can improve the stable higher explosion velocity of charge density, maintenance of product, can reduce toxic and harmful content again, tool is of great significance.
Summary of the invention
The objective of the invention is on the basis of making the bulking ammonium nitrate explosive traditional technology, by improving the physico-chemical property of expanded ammonium nitrate, a kind of expanded ammonium nitrate and preparation method thereof is provided, thereby improves the charge density of bulking ammonium nitrate explosive, keep stable higher explosion velocity, reduce toxic gas content.
For achieving the above object, expanded ammonium nitrate of the present invention, its main component comprises ammonium nitrate, swelling agent, also include simultaneously SODIUMNITRATE, machine oil, the mass percent that each composition divides is: ammonium nitrate 99.0%～99.5%, SODIUMNITRATE 0.1%～0.5%, machine oil 0.1%～0.5%, swelling agent 0.15%～0.2%.
The preparation method of expanded ammonium nitrate of the present invention is: get a certain amount of water, ammonium nitrate is dissolved in water, add SODIUMNITRATE, swelling agent and machine oil when being heated to 100 ℃, the mass percent of ammonium nitrate, SODIUMNITRATE, swelling agent, machine oil is: ammonium nitrate 99.0%～99.5%, SODIUMNITRATE 0.1%～0.5%, machine oil 0.1%～0.5%, swelling agent 0.15%～0.2%, treat all material dissolve completes, when the liquid material temperature reaches 125 ℃～135 ℃, in solution input crystallizer, carry out expanded crystallization, the crystallizer vacuum keep-more than 0.090MPa.
Compare with traditional technology, when preparing, water adds a certain amount of SODIUMNITRATE and machine oil, SODIUMNITRATE can form molten thing altogether with ammonium nitrate solution, can change the crystalline form of ammonium nitrate in Crystallization Process, be conducive to form more small-crystalline, favourable to improving explosive density, it is rich in oxygen simultaneously, can regulate the oxygen balance of explosive; Because oil stability is good, can not only improve the surface-active vigor of swelling agent, and part machine oil molecule infiltration in ammonium nitrate crystal, effectively improves the combination of oxygenant and combustible agent when crystallization, be conducive to reacting completely of explosive, reduce the content of toxic and harmful.
Beneficial effect of the present invention: add a certain amount of SODIUMNITRATE and machine oil during the water preparation, the expanded ammonium nitrate that aqueous phase solution after dissolving is formed after expanded crystallization has that granularity is little, easy fragmentation, characteristics that density is large, with make the bulking ammonium nitrate explosive finished product after composite oil phase, wood powder or flame-cooling agent mix, the product that the product produced is produced apparently higher than conventional process techniques on performance, improved explosive density, stablized explosion velocity, reduced the content of toxic and harmful, the cartridge density after powder charge simultaneously is also larger than novel technique.
Embodiment
Produce secondary Permitted Detonator for Coal Mining bulking ammonium nitrate explosive, its main component comprises ammonium nitrate, SODIUMNITRATE, machine oil, swelling agent, composite oil phase, wood powder and sodium-chlor.First operation in traditional technology, when namely producing expanded ammonium nitrate, add a certain amount of SODIUMNITRATE and machine oil, the ratio of various components is as follows: ammonium nitrate 99.0%～99.5%, SODIUMNITRATE 0.1%～0.5%, machine oil 0.1%～0.5%, swelling agent 0.15%～0.2%.
Specific embodiment is as follows: add a certain amount of water in the aqueous phase dissolved tank, be delivered to the dissolving of water tank through metering, ammonium nitrate after fragmentation by worm conveyor, until ammonium nitrate progressively dissolve, temperature adds SODIUMNITRATE, swelling agent and machine oil when rising to 100 ℃.The quality of the addition of ammonium nitrate, swelling agent, SODIUMNITRATE, machine oil and water take every tank as benchmark added than being ammonium nitrate 1500: swelling agent 3: SODIUMNITRATE 2: machine oil 2: water 120, treat that in tank, material dissolution is complete, when the liquid material temperature reaches 125 ℃～135 ℃, in solution input crystallizer, carry out expanded crystallization, the crystallization vacuum keep-more than 0.090MPa.
It is identical with traditional technology that spiral mixes medicine, sieve, the medicine of a cold nature and powder charge packing.
Through national inspection centers, the present invention is added the secondary Permitted Detonator for Coal Mining bulking ammonium nitrate explosive of quantitative SODIUMNITRATE and machine oil production and the explosive of traditional technology production and compare detection in the aqueous phase dissolved operation, result is as follows:
Table 1 secondary Permitted Detonator for Coal Mining bulking ammonium nitrate explosive detects the contrast table look-up
| ? | Explosion velocity (m ∕ s) | Toxic gas content (L ∕ kg) |
| Technique of the present invention | 3300 | 45 |
| Traditional technology | 3200 | 75 |
Claims (1)
1. the preparation method of an expanded ammonium nitrate is characterized in that said method comprising the steps of:
Get a certain amount of water, ammonium nitrate is dissolved in water, add SODIUMNITRATE, swelling agent and machine oil when being heated to 100 ℃, the mass percent of ammonium nitrate, SODIUMNITRATE, swelling agent, machine oil is: ammonium nitrate 99.0%～99.5%, SODIUMNITRATE 0.1%～0.5%, machine oil 0.1%～0.5%, swelling agent 0.15%～0.2%, treat all material dissolve completes, when the liquid material temperature reaches 125 ℃～135 ℃, in solution input crystallizer, carry out expanded crystallization, the crystallizer vacuum keep-more than 0.090MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110267331 CN102424644B (en) | 2011-09-09 | 2011-09-09 | Expanded ammonium nitrate and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110267331 CN102424644B (en) | 2011-09-09 | 2011-09-09 | Expanded ammonium nitrate and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102424644A CN102424644A (en) | 2012-04-25 |
| CN102424644B true CN102424644B (en) | 2013-11-06 |
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| CN 201110267331 Expired - Fee Related CN102424644B (en) | 2011-09-09 | 2011-09-09 | Expanded ammonium nitrate and preparation method thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503744A (en) * | 2011-10-20 | 2012-06-20 | 福建省民爆化工股份有限公司 | Method for improving density and properties of continuously-expanded ammonium nitrate explosive |
| CN102850150B (en) * | 2012-09-11 | 2015-09-02 | 陈靖宇 | The powder porous ammonium nitrate explosive of ternary component and manufacture method thereof and using method |
| CN106554241A (en) * | 2016-08-03 | 2017-04-05 | 湖北凯龙化工集团股份有限公司 | High density bulking ammonium oil explosive-source explosive post production line and production method |
| CN106748596B (en) * | 2016-12-21 | 2019-03-19 | 四川雅化实业集团股份有限公司 | A kind of viscous explosive and preparation method thereof of no single chmical compound explosive |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101152992A (en) * | 2006-09-29 | 2008-04-02 | 鞍钢集团矿业公司 | Emulsifying blasting agent produced on blasting agent mixing vehicle |
| CN102093147A (en) * | 2010-12-14 | 2011-06-15 | 高要市南虹化工有限公司 | Modified expanded ammonium nitrate explosive and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2187726B (en) * | 1986-03-14 | 1989-11-15 | Ici Plc | Solid explosive composition. |
| US6955731B2 (en) * | 2003-01-28 | 2005-10-18 | Waldock Kevin H | Explosive composition, method of making an explosive composition, and method of using an explosive composition |
| CN101429081B (en) * | 2008-11-27 | 2011-06-29 | 广东省力拓民爆器材厂 | Process for producing novel puffing nitramon |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101152992A (en) * | 2006-09-29 | 2008-04-02 | 鞍钢集团矿业公司 | Emulsifying blasting agent produced on blasting agent mixing vehicle |
| CN102093147A (en) * | 2010-12-14 | 2011-06-15 | 高要市南虹化工有限公司 | Modified expanded ammonium nitrate explosive and preparation method thereof |
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| CN102424644A (en) | 2012-04-25 |
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Effective date of registration: 20170630 Address after: 817000 in Qinghai province to the No. 8 Qilian Road Patentee after: QINGHAI HAIXI DONGNUO CHEMICAL Co.,Ltd. Address before: 364000 South Road, Xinluo, Fujian, No. 91 South Road, No. 38, No. Patentee before: FUJIAN CIVILIAN BLASTING CHEMICAL Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20131106 |