CN103288566A - Rock powdery emulsion explosive and preparation method thereof - Google Patents
Rock powdery emulsion explosive and preparation method thereof Download PDFInfo
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- CN103288566A CN103288566A CN2012100405206A CN201210040520A CN103288566A CN 103288566 A CN103288566 A CN 103288566A CN 2012100405206 A CN2012100405206 A CN 2012100405206A CN 201210040520 A CN201210040520 A CN 201210040520A CN 103288566 A CN103288566 A CN 103288566A
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Abstract
The invention relates to a rock powdery emulsion explosive and a preparation method thereof. The rock powdery emulsion explosive is produced by that: an emulsion is formed by mixing a water phase ingredient and an oil phase ingredient in a mixer, then the emulsion is vacuum dried to be powder, and porous granulated ammonium nitrate is added into the powder. The rock powdery emulsion explosive provided in the invention, which is a high-performance safe explosive, is simple in composition; high in explosive power; and low in toxic gas content, impact sensitivity and mechanical sensitivity. The preparation method is simple and safe, and no inert substance is added into the explosive.
Description
Technical field
The present invention relates to a kind of rock powdery emulsion explosive and preparation method thereof, particularly a kind ofly do not contain inert substance but capacity for work height, toxic gas content are low, impact sensitivity and friction sensitivity are low high-performance safety type rock powdery emulsion explosive and preparation method thereof.
Background technology
"Catalogue (basis in 2011) is instructed in industry restructuring " and " the Ministry of Industry and Information Technology is about commercial explosive materials product industry technical progress instruction " all point out encourage growth high-performance safety type industrial explosive, encourage growth low pressure and no compression technology, restriction and superseded emulsor drug temperature be greater than 130 ℃ emulsifying process, restriction and eliminate blast back toxic gas content greater than the industrial explosive of 50L/kg.
Powdery emulsifying explosive is good as a kind of blast performance, one of broad-spectrum industrial explosive kind, and the domestic production powdery emulsifying explosive mainly contains dual mode at present, and a kind of is spray pulverization after the emulsification of water oil phase; Another kind is that the water oil phase mixes back negative pressure drying powder process.Though the powdery emulsifying explosive that spray pulverization is produced has higher blast performance and good water resisting property, but be the control water content in production process, then adopt above 130 ℃, even the high temperature up to 150 ℃, and the mode that increases solution presasure increases the solubleness of ammonium nitrate, and the spray pulverization energy consumption is big, the cost height; Though adopting negative pressure to dehydrate, negative pressure drying powder process can reduce water content, improve dry powder process quality, still need the high temperature more than 130 ℃ just can make water content reduce to the needs that satisfy dry powder process but ammonium nitrate is water-soluble, and the water oil phase hybrid mode that adopts, its uniform and stable property is poor, easily layering in the pulverizing process, cause unstable product quality, and in product, add silicon-dioxide, inert substances such as silicon bath soil, cause the product blast performance especially capacity for work reduce the standard do not reach 320ml, toxic gas content surpasses instruction 50L/kg regulation, impact sensitivity surpasses 15% standard, friction sensitivity surpasses 8% standard, cause the potential safety hazard of producing and using, also do not satisfy the requirement of technical progress instruction.
On December 10th, 2008 was awarded to the Chinese patent 200810123173.7 of Anhui Jiangnan Chemical Industry Co., Ltd., was entitled as " production technique of powdery emulsifying explosive "; On May 3rd, 2006 was awarded to the Chinese patent 200510094227.8 of Institutes Of Technology Of Nanjing, was entitled as " preparation method of powdery emulsifying explosive "; On January 19th, 2005 was awarded to the Chinese patent 03131865.7 of Institutes Of Technology Of Nanjing, was entitled as " rock powdery emulsion explosive and manufacture method thereof "; Awarded to the Chinese patent 93117971.8 of Beijing Mine and Metallurgy General Inst on April 13rd, 1994, be entitled as " powdery emulsifying explosive and preparation method thereof ", the water preparation process of bulletin all adopts above high temperature more than 130 ℃ and improves the control water content, thereby improve the solubleness of ammonium nitrate, part method even the high temperature of employing up to 150 ℃, the core process that above-mentioned powder process is adopted is the higher spray pulverization of energy consumption, when improving energy consumption, increased the security risk in the production process, and run in the opposite direction with energy-conservation policy and technical progress of industry instruction that country is advocating.
For increasing tap density and the performance of powdery emulsifying explosive, conventional art adopts materials such as adding coal dust, aluminium powder, SULPHUR POWDER, TNT, RDX, silicon-dioxide, the people of this area knows, these materials add not only allows powdery emulsifying explosive form the complexity that becomes, it is complicated that its production technique also becomes, and industry has forbidden above-mentioned substance is joined in the industrial explosive production.Awarded to the Chinese patent 200810123173.7 of Anhui Jiangnan Chemical Industry Co., Ltd. on December 10th, 2008, be entitled as " production technique of powdery emulsifying explosive ", the handling machinery that passes through to have frequency transformer of bulletin, in dry powder process tower, at the uniform velocity add ammonium nitrate, the add-on of ammonium nitrate is 5～20% of the interior dose of dry powder process tower, though improved the tap density of powdery emulsifying explosive, but its additional proportion control accuracy is not high, influence constant product quality, and directly in the powder process tower, add, processing requirement is complicated, is not easy to observe and control.What the present invention then adopted is that metering screw carries steel band to add ammonium nitrate in the cooling of opening wide, and additional proportion can accurately be controlled, and is convenient to observe, and the add-on of ammonium nitrate is 0～8%.
Awarded to Tang Qiuming individual's Chinese patent 200710035540.3 on March 12nd, 2008, be entitled as " a kind of modified ammonium nitrate fuel explosive negatively pressurized static continuous production method ", announced a kind of negative pressure drying powder process mode, but its water preparation and mixing temperature still surpass 130 ℃, and its explosive that makes does not reach quality standard and the technical progress of industry instruction of rock powdery emulsion explosive.The present invention adopts and adds a kind of special anion surfactant at water, this anion surfactant is water-soluble fabulous, can significantly reduce surface tension, few consumption can strengthen water and oil phase mixed effect, make the water oil phase after mixing, become uniform dispersion system (emulsion), be implemented in the control of water preparation temperature at 115～125 ℃, mixing temperature control is at 105～120 ℃ of specification of quality that just reach negative pressure drying powder process, and product also can satisfy the rock powdery emulsion explosive quality standard.
Summary of the invention
The objective of the invention is in order to overcome above-mentioned shortcoming, provide a kind of and form simply, do not contain inert substance but capacity for work height, toxic gas content are low, impact sensitivity and friction sensitivity are low high-performance safety type rock powdery emulsion explosive and preparation method thereof.
Rock powdery emulsion explosive of the present invention is formed (weight %): ammonium nitrate 85～94%, tensio-active agent 0.05～0.5%, compound oil phase 4.0～7.0%, porous grain ammonium nitrate 0～8.0%.
Rock powdery emulsion explosive of the present invention is characterized in that, tensio-active agent is a kind of anion surfactant, is specially: sodium methylene bis-naphthalene sulfonate.
Rock powdery emulsion explosive of the present invention is characterized in that, compound oil phase is a kind of compound oil phase that contains paraffin, machine oil and octadecane amine acetate.
Rock powdery emulsion explosive of the present invention, its preparation method is: the preparation of (1) water: ammonium nitrate 91～94%, and water 6～9% carries out heating for dissolving, and melting temperature is controlled at 115～125 ℃, add above-mentioned tensio-active agent 0.05～0.5% after ammonium nitrate dissolves fully, the dissolving back forms water; (2) oil phase preparation: with the fusing of compounded oil heat phase, 85～110 ℃ of temperature of fusion controls form oil phase; (3) water, oil phase are sent into pony mixer and mix to be formed emulsion, carry out negative pressure drying powder process then, form the explosive powder and by carrying steel band to cool off and carrying; (4) ammonium nitrate quantitatively is added on the conveying steel band by metering screw, mixes through medicine mixer with the explosive powder that makes through negative pressure drying, form the rock powdery emulsion explosive product.
Embodiment
The invention will be further described by the following examples.
Embodiment 1: the rock powdery emulsion explosive raw material is formed (weight %) and is: ammonium nitrate 90%, tensio-active agent 0.3%, compound oil phase 4.0%, porous grain ammonium nitrate 6.0%.
The water preparation: ammonium nitrate and water dissolve in 92% and 8% ratio, and melting temperature is 120 ℃; The oil phase preparation: temperature of fusion is 105 ℃, product by above-mentioned preparation method's preparation through national security production Huaibei industrial explosive material detection inspection center detected result is: capacity for work 339ml, toxic gas content 40L/kg, impact sensitivity 10%, friction sensitivity 0%.
Embodiment 2: the rock powdery emulsion explosive raw material is formed (weight %) and is: ammonium nitrate 92%, tensio-active agent 0.4%, compound oil phase 5.0%, porous grain ammonium nitrate 3.0%.
The water preparation: ammonium nitrate and water dissolve in 92% and 8% ratio, and melting temperature is 120 ℃; The oil phase preparation: temperature of fusion is 105 ℃, and the product for preparing by above-mentioned preparation method through national industrial explosive material quality supervision and test center detected result is: capacity for work 367ml, toxic gas content 48L/kg, impact sensitivity 0%, friction sensitivity 0%.
Claims (4)
1. rock powdery emulsion explosive, the composition of this rock powdery emulsion explosive (weight %) is: ammonium nitrate 85～94%, tensio-active agent 0.05～0.5%, compound oil phase 4.0～7.0%, ammonium nitrate 0～8.0%.
2. rock powdery emulsion explosive according to claim 1 is characterized in that, tensio-active agent is sodium methylene bis-naphthalene sulfonate.
3. rock powdery emulsion explosive according to claim 1 is characterized in that, compound oil phase is the compound oil phase that contains paraffin, machine oil and octadecane amine acetate.
4. the preparation method of the described rock powdery emulsion explosive of claim 1, it is characterized in that: (1) water preparation: ammonium nitrate 91～94%, water 6～9% carries out heating for dissolving, melting temperature control is at 115～125 ℃, add above-mentioned tensio-active agent 0.05～0.5% after ammonium nitrate dissolves fully, the dissolving back forms water; (2) oil phase preparation: with the fusing of compounded oil heat phase, 85～110 ℃ of temperature of fusion controls form oil phase; (3) water, oil phase are sent into pony mixer and mix to be formed emulsion, carry out negative pressure drying powder process then, form the explosive powder and by carrying steel band to cool off and carrying; (4) ammonium nitrate quantitatively is added on the conveying steel band by metering screw, mixes through medicine mixer with the explosive powder that makes through negative pressure drying, form the rock powdery emulsion explosive product.
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| CN2012100405206A CN103288566A (en) | 2012-02-22 | 2012-02-22 | Rock powdery emulsion explosive and preparation method thereof |
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| CN2012100405206A CN103288566A (en) | 2012-02-22 | 2012-02-22 | Rock powdery emulsion explosive and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| US4960475A (en) * | 1990-03-20 | 1990-10-02 | Cranney Don H | Surfactant for gassed emulsion explosive |
| US5527498A (en) * | 1994-09-15 | 1996-06-18 | Arcadian Fertilizer, L.P. | Method for production of high density ammonium nitrate prills |
| CN1480435A (en) * | 2003-07-03 | 2004-03-10 | 赵忠和 | Industrial powdery rock ammonium nitrate explosive |
| CN1517325A (en) * | 2003-01-17 | 2004-08-04 | 南京理工大学 | High-performance powdered ammonium-oil oxplosive and its manufacturing method |
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| CN101318867A (en) * | 2008-06-17 | 2008-12-10 | 安徽江南化工股份有限公司 | Process for preparing power shaped emulsifying blasting explosive |
| CN201433177Y (en) * | 2009-07-10 | 2010-03-31 | 山西同德化工股份有限公司 | Automatic control device for producing expanded AN (ammonium nitrate) explosive |
| CN101786932A (en) * | 2009-01-22 | 2010-07-28 | 南京理工大学 | Oil-in-water powdery emulsion explosive, preparation method and application thereof |
| CN102285848A (en) * | 2011-05-18 | 2011-12-21 | 湖北凯龙化工集团股份有限公司 | Pressure-resistant high-power emulsified seismic explosive column and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1205971A (en) * | 1967-09-13 | 1970-09-23 | Du Pont | Blasting agent |
| JPS6090888A (en) * | 1983-10-21 | 1985-05-22 | 日本油脂株式会社 | Manufacture of water-in-oil emulsion explosive |
| US4960475A (en) * | 1990-03-20 | 1990-10-02 | Cranney Don H | Surfactant for gassed emulsion explosive |
| US5527498A (en) * | 1994-09-15 | 1996-06-18 | Arcadian Fertilizer, L.P. | Method for production of high density ammonium nitrate prills |
| CN1517325A (en) * | 2003-01-17 | 2004-08-04 | 南京理工大学 | High-performance powdered ammonium-oil oxplosive and its manufacturing method |
| CN1480435A (en) * | 2003-07-03 | 2004-03-10 | 赵忠和 | Industrial powdery rock ammonium nitrate explosive |
| CN1935752A (en) * | 2006-10-12 | 2007-03-28 | 新泰市安泰化工有限责任公司 | Continuous automatic explosive-mixing machine, powder nitramon explosive production method and production line |
| CN1970512A (en) * | 2006-12-04 | 2007-05-30 | 唐秋明 | Method and equipment for preparing powder explosive |
| CN101318867A (en) * | 2008-06-17 | 2008-12-10 | 安徽江南化工股份有限公司 | Process for preparing power shaped emulsifying blasting explosive |
| CN101786932A (en) * | 2009-01-22 | 2010-07-28 | 南京理工大学 | Oil-in-water powdery emulsion explosive, preparation method and application thereof |
| CN201433177Y (en) * | 2009-07-10 | 2010-03-31 | 山西同德化工股份有限公司 | Automatic control device for producing expanded AN (ammonium nitrate) explosive |
| CN102285848A (en) * | 2011-05-18 | 2011-12-21 | 湖北凯龙化工集团股份有限公司 | Pressure-resistant high-power emulsified seismic explosive column and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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Application publication date: 20130911 |