CN102424644A - High-quality expanded ammonium nitrate and preparation method thereof - Google Patents
High-quality expanded ammonium nitrate and preparation method thereof Download PDFInfo
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- CN102424644A CN102424644A CN2011102673318A CN201110267331A CN102424644A CN 102424644 A CN102424644 A CN 102424644A CN 2011102673318 A CN2011102673318 A CN 2011102673318A CN 201110267331 A CN201110267331 A CN 201110267331A CN 102424644 A CN102424644 A CN 102424644A
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Abstract
The invention relates to an intermediate product for explosive manufacturing and a preparation method thereof, and concretely relates to high-quality 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 high-quality expanded ammonium nitrate and preparation method thereof.
Background technology
Expanded ammonium nitrate is the main moity of bulking ammonium nitrate explosive, and first procedure of making bulking ammonium nitrate explosive produces expanded ammonium nitrate exactly.The staple of existing bulking ammonium nitrate explosive comprises expanded ammonium nitrate, compound 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: an ammonium nitrate, the swelling agent aqueous solution and compound oil phase carry out expanded crystallization jointly; Formation contains the expanded ammonium nitrate of compound oil phase material, adds the bulking ammonium nitrate explosive of processing after a certain proportion of wood powder or flame-cooling agent mix again; A kind of in addition is single an ammonium nitrate aqueous phase solution bulking process: an ammonium nitrate, the swelling agent aqueous solution carry out expanded formation expanded ammonium nitrate, add the bulking ammonium nitrate explosive of processing after a certain proportion of compound oil phase, wood powder or flame-cooling agent mix again.The former is a 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 big.Because the character of compound 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.In production application, still adopt traditional processing technology more, major cause is if adopt new technology and need undergo technological transformation to vacuum crystallization machine and spiral mixing machine, changes many new equipment, needs to drop into substantial contribution.
Therefore on the basis of traditional preparation process technology; 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 charge density, the maintenance of product and stablize higher explosion velocity, can reduce toxic and harmful content again, have crucial meaning.
Summary of the invention
The objective of the invention is on the basis of making the bulking ammonium nitrate explosive traditional technology; Through improving the physico-chemical property of expanded ammonium nitrate, a kind of high-quality expanded ammonium nitrate and preparation method thereof is provided, thereby improves the charge density of bulking ammonium nitrate explosive; Keep stablizing higher explosion velocity, reduce toxic gas content.
For realizing above-mentioned purpose; Expanded ammonium nitrate of the present invention; Its staple comprises an ammonium nitrate, swelling agent; Also include SODIUMNITRATE, machine oil simultaneously, each mass percent of forming branch is: an 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; Be dissolved in an ammonium nitrate in the water; Add SODIUMNITRATE, swelling agent and machine oil when being heated to 100 ℃, the mass percent of an ammonium nitrate, SODIUMNITRATE, swelling agent, machine oil is: an ammonium nitrate 99.0%～99.5%, SODIUMNITRATE 0.1%～0.5%, machine oil 0.1%～0.5%, swelling agent 0.15%～0.2%, treat that all material dissolutions are complete; When liquid material temperature reaches 125 ℃～135 ℃; In solution input crystallizer, carry out expanded crystallization, crystallizer vacuum tightness remains on-more than the 0.090MPa.
Compare with traditional technology; When water is prepared, add a certain amount of SODIUMNITRATE and machine oil, SODIUMNITRATE can form with ammonium nitrate solution and dissolve thing altogether, in the crystallization process, can change the crystalline form of an ammonium nitrate; Help forming more small-crystalline; Favourable to improving explosive density, it is rich in oxygen, the oxygen balance of adjustable explosive simultaneously; Because oil stability is good; Can not only improve the surface-active vigor of swelling agent, and part machine oil molecule infiltration effectively improves combining of oxygenant and combustible agent in ammonium nitrate crystal when crystallization; Help 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 the dissolving is formed after expanded crystallization have granularity little, be prone to the characteristics broken, that density is big; With make the bulking ammonium nitrate explosive finished product after compound 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 the powder charge simultaneously is also bigger than novel technique.
Embodiment
Produce secondary Permitted Detonator for Coal Mining bulking ammonium nitrate explosive, its staple comprises an ammonium nitrate, SODIUMNITRATE, machine oil, swelling agent, compound oil phase, wood powder and sodium-chlor.First procedure in traditional technology; When promptly producing expanded ammonium nitrate; Add a certain amount of SODIUMNITRATE and machine oil, the ratio of various components is following: an 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 following: in the aqueous phase dissolved jar, add a certain amount of water, an ammonium nitrate after metering, fragmentation is delivered to the dissolving of water jar by worm conveyor, treats that an ammonium nitrate progressively dissolves, adds SODIUMNITRATE, swelling agent and machine oil when temperature rises to 100 ℃.The addition of an ammonium nitrate, swelling agent, SODIUMNITRATE, machine oil and water is that the quality of benchmark is added than being: an ammonium nitrate 1500: swelling agent 3: SODIUMNITRATE 2: machine oil 2: water 120 with every jar; Treat that jar interior material dissolution is complete; When liquid material temperature reaches 125 ℃～135 ℃; In solution input crystallizer, carry out expanded crystallization, crystallization vacuum tightness remains on-more than the 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 explosive that secondary Permitted Detonator for Coal Mining bulking ammonium nitrate explosive and the traditional technology of quantitative SODIUMNITRATE and machine oil production produce in the aqueous phase dissolved operation and compare detection, the result is following:
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) | |
| Technology of the present invention | 3300 | 45 |
| Traditional technology | 3200 | 75 |
Claims (2)
1. high-quality expanded ammonium nitrate; Its staple comprises an ammonium nitrate, swelling agent; It is characterized in that; Also include SODIUMNITRATE, machine oil, each mass percent of forming branch is: an ammonium nitrate 99.0%～99.5%, SODIUMNITRATE 0.1%～0.5%, machine oil 0.1%～0.5%, swelling agent 0.15%～0.2%.
2. the preparation method of high-quality expanded ammonium nitrate according to claim 1 is characterized in that said method comprising the steps of:
Get a certain amount of water; Be dissolved in an ammonium nitrate in the water; Add SODIUMNITRATE, swelling agent and machine oil when being heated to 100 ℃, the mass percent of an ammonium nitrate, SODIUMNITRATE, swelling agent, machine oil is: an ammonium nitrate 99.0%～99.5%, SODIUMNITRATE 0.1%～0.5%, machine oil 0.1%～0.5%, swelling agent 0.15%～0.2%, treat that all material dissolutions are complete; When liquid material temperature reaches 125 ℃～135 ℃; In solution input crystallizer, carry out expanded crystallization, crystallizer vacuum tightness remains on-more than the 0.090MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| 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 |
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| CN 201110267331 CN102424644B (en) | 2011-09-09 | 2011-09-09 | Expanded ammonium nitrate and preparation method thereof |
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| CN102424644A true CN102424644A (en) | 2012-04-25 |
| CN102424644B CN102424644B (en) | 2013-11-06 |
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Cited By (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 |
| CN102850150A (en) * | 2012-09-11 | 2013-01-02 | 陈靖宇 | Ternary-component powder particle porous ammonium nitrate explosive, and manufacturing method and application method thereof |
| 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 |
| CN106748596A (en) * | 2016-12-21 | 2017-05-31 | 四川雅化实业集团股份有限公司 | A kind of viscous explosive without single chmical compound explosive and preparation method thereof |
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| CN101429081A (en) * | 2008-11-27 | 2009-05-13 | 广东省力拓民爆器材厂 | Process for producing novel puffing nitramon |
| 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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| CN87102707A (en) * | 1986-03-14 | 1987-10-28 | 帝国化学工业公司 | Solid explosive composition |
| CN1768018A (en) * | 2003-01-28 | 2006-05-03 | 凯文·H·沃尔多克 | Explosive composition comprising heavy ANFO and a plant derived, inert bulking and sensitizing additive |
| 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 |
| CN101429081A (en) * | 2008-11-27 | 2009-05-13 | 广东省力拓民爆器材厂 | Process for producing novel puffing nitramon |
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Cited By (6)
| 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 |
| CN102850150A (en) * | 2012-09-11 | 2013-01-02 | 陈靖宇 | Ternary-component powder particle porous ammonium nitrate explosive, and manufacturing method and application method thereof |
| 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 |
| CN106748596A (en) * | 2016-12-21 | 2017-05-31 | 四川雅化实业集团股份有限公司 | A kind of viscous explosive without single chmical compound explosive and preparation method thereof |
| 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 |
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| CN102424644B (en) | 2013-11-06 |
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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 Minbao Chemical Co., Ltd. |