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CN1303042C - High-energy powdery ammonium nitrate explosive with no sibium, and preparation method - Google Patents

High-energy powdery ammonium nitrate explosive with no sibium, and preparation method Download PDF

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Publication number
CN1303042C
CN1303042C CNB2004100403456A CN200410040345A CN1303042C CN 1303042 C CN1303042 C CN 1303042C CN B2004100403456 A CNB2004100403456 A CN B2004100403456A CN 200410040345 A CN200410040345 A CN 200410040345A CN 1303042 C CN1303042 C CN 1303042C
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China
Prior art keywords
explosive
additive
preparation
ammonium nitrate
compound wax
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Expired - Fee Related
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CNB2004100403456A
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Chinese (zh)
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CN1727314A (en
Inventor
耿一平
王建勤
苟祥奎
李加强
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STATE-RUN YUNNAN PACKAGE FACTORY
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STATE-RUN YUNNAN PACKAGE FACTORY
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Publication of CN1303042C publication Critical patent/CN1303042C/en
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Abstract

The present invention relates to a powdery high explosive with no sibium and a preparation method thereof. The present invention belongs to an explosive and a preparation method thereof, particularly to a powdery explosive with no sibium and a preparation method. The explosive is prepared from 4% to 6% of compound wax, 0.5% to 4% of additive and ammonium nitrate as the rest, and the water content of finished products is below 0.3%. In preparation, an oxidizing agent and a combustible agent need converting into liquid first, and then the components are mixed by a static uniform mixer to be dewatered, granulated and dried in the mode of gasflow atomization; subsequently, cooling is carried out by a closed water-cooling device, and finally, explosives are loaded. The present invention has the advantages of simple technique, no harm to human bodies and environment, low product cost and high brisance.

Description

High energy non-TNT powder explosive and preparation method thereof
Technical field
The invention belongs to extremely preparation method of a kind of explosive, refer specifically to powder type explosive that does not contain by tritonal and preparation method thereof.
Background technology
At present in China's powder type explosive, contain terraced explosive and account for about 50% of total amount, though this class powdery ammonium ladder detonator power is higher, raw material extensively, is easily produced and compare safety, but tritonal is a kind of nitro-compound, physiological function to human body seriously influences, the personnel of long-term contact understand chronic poisoning, cause disease in the blood system; Ammonium nitrate has intensive and inhales gentle caking tendency, not only influences production, storing and the application of explosive product, and causes blast performance to reduce, even loses use properties.The common powder type explosive that replaces powdery ammonium ladder detonator now has bulking ammonium nitrate explosive and powdery emulsifying explosive.Because the ammonium nitrate in the bulking ammonium nitrate explosive is by expanded, so its density is lower, make the bulk strength of product reduce on the one hand, the increase of specific surface area also makes the water absorbability of product strengthen on the other hand, and the storage condition of product can change if processing quality fluctuates then; The mechanical sensitivity of powdery emulsifying explosive is lower, makes to be dehydrated into powder again behind the emulsion matrix and can to cause product cost higher, and particularly the investment of kinetic energy consumption and disposable apparatus is bigger.
Summary of the invention
Technical problem to be solved by this invention provides a kind of high energy non-TNT powder explosive and preparation method thereof, and its technology is simple, and human body and environment are not had harm, and product cost is low, and anti-moisture absorption property is strong, and brisance is big.
Solving technical problem of the present invention adopts the explosive weight percentages of components to be: compound wax 4%~6%, additive 0.5%~4%, surplus is an ammonium nitrate, the moisture of finished product is lower than 0.3%, wherein compound wax is the mixture of paraffin and Vaseline, additive is lipid acid or dodecyl nitrate, anion surfactant, the hydrate of sodium sulfate, combustible organic hydrophobic agent, and the ratio of each component of additive is 1~10: 3~7: 60~80: 10~20.
More than the paraffin in the described compound wax of prescription is 1: 1 with the ratio of Vaseline weight, flammable organic hydrophobic agent in the additive is one or more mixtures in pitch, rosin, diesel oil, the machine oil, and anion surfactant is sodium lauryl sulphate or sodium methylene bis-naphthalene sulfonate.
High energy non-TNT powder explosive of the present invention is except that above-mentioned prescription key, and following technology is also very important:
At first, get the raw materials ready by said ratio; Adding entry and be heated to 100 ℃~120 ℃ in ammonium nitrate forms liquid; Heating compound wax and additive form liquid; Simultaneously two kinds of liquid form mixts are pumped in the static uniform mixer and mix, keep static uniform mixer temperature at 110 ℃~120 ℃; With the mode of airflow atomizing to the material dewatering in the static uniform mixer, granulating and drying; Material after the granulation is cooled off powder charge then, packing in airtight water cooling plant.
The above-mentioned dehydration of this technology, granulating and drying time should be controlled at 1~2 second, and the moisture content of finished products control after the dehydration is lower than 0.3%.
Technique scheme of the present invention can reach following effect:
(1) technology is simple.The present invention need not to adopt emulsifying agent and complicated emulsifying process, does not also adopt corresponding complexity and expensive equipment.
(2) human body and environment there is not harm.Do not contain tritonal in the explosive component of the present invention, eliminated health harm, avoided common frequently-occurring occupational illness operator.
(3) product cost is low.Each component starting material wide material sources in the explosive formulation, ample supply and prompt delivery, low about 500 yuan per ton of raw materials cost than No. 2 rock powdery an-tnt explosives, than low about 200 yuan of powdery emulsifying explosive, production technique is succinct especially, be convenient to control, the production line floor space is little, is easy to realize serialization, automatic production, production cost and energy consumption are lower, almost three-waste free pollution, need not to increase three wastes processing unit and associated cost.
(4) anti-moisture absorption property of product is strong.The effect that the additive that adopts in the prescription improves the ammonium nitrate physicals is very remarkable, make water absorbability and anti-caking be reduced to about 1% of common ammonium nitrate, and 32.1 ℃ brilliant alternating temperature degree is also changed into 40 ℃~50 ℃.
(5) brisance is big.The oxygen balance of formulating of recipe should be as far as possible near zero oxygen balance, the additive that adds and adopt special complete processing can reach the purpose that activates its detonation sensitivity, make the chemical reaction of this system more be tending towards idealized, improve the exothermicity and the detonation speed of response of reaction to greatest extent.
It below is the contrast of explosive of the present invention and other powder type explosive performance index
The product variety indicator situation High energy non-TNT powder explosive Powdery emulsifying explosive Bulking ammonium nitrate explosive No. 2 rock powdery an-tnt explosives
Density (g/cm3) 0.85~1.00 0.95~1.30 0.8~0.95 0.95~1.05
Gap distance (cm) 5~10 ≥5 ≥4 ≥5
Explosion velocity (m/s 1) 3400~4200 3200 ≥3200 3200
Brisance (mm) 14~18 ≥14 ≥14 ≥12
Capacity for work (ml) 340~390 320 320 320
Water resisting property Well Well Difference Difference
Package stability 〉=6 months 〉=6 months 〉=6 months 〉=6 months
Embodiment
Embodiment 1.
Prepare raw material by following part by weight, promptly, 84 parts in ammonium nitrate, 5 parts of compound wax, 2 parts of additives, 9 parts in water, wherein compound wax is the mixture of paraffin and Vaseline, the ratio of both weight is 1: 1, additive is lipid acid or dodecyl nitrate, anion surfactant, the hydrate of sodium sulfate, combustible organic hydrophobic agent, and the ratio of each component is 8: 5: 75 in the additive: 12, and the flammable organic hydrophobic agent in the additive is one or more mixtures in pitch, rosin, diesel oil, the machine oil; Form liquid state with adding entry in the ammonium nitrate and being heated to 110 ℃~120 ℃, filter; Compound wax and additive are heated into liquid state jointly, filter; In time, pumps into above-mentioned two kinds of liquid form mixts that prepare in the static uniform mixer and to mix, and keeps mixing of materials state and temperature at 110 ℃~120 ℃; Air-flow is blown into Venturi meter at a high speed,, dewaters in short-term in, granulating and drying the material sucking-off in the static uniform mixer with the mode of airflow atomizing, the time is 1 second~2 seconds, and the moisture content of finished products after the dehydration is lower than 0.2%; Then the material after the granulation is cooled off last powder charge, packing.The performance index of explosive are density 0.92g/cm 3, strong, the period of storage of gap distance 7cm, explosion velocity 3987m/s, brisance 17mm, capacity for work 362ml, water resisting property 8 months.
Embodiment 2.
Prepare raw material by following part by weight, promptly, 85 parts in ammonium nitrate, 5.5 parts of compound wax, 1.5 parts of additives, 10 parts in water, wherein compound wax is the mixture of paraffin and Vaseline, the ratio of both weight is 1: 1, additive is lipid acid or dodecyl nitrate, anion surfactant, the hydrate of sodium sulfate, combustible organic hydrophobic agent, and the ratio of each component is 9: 6: 75 in the additive: 10, and the flammable organic hydrophobic agent in the additive is one or more mixtures in pitch, rosin, diesel oil, the machine oil; Form liquid state with adding entry in the ammonium nitrate and being heated to 100 ℃~120 ℃, filter; Compound wax and additive are heated into liquid state jointly, filter; Simultaneously above-mentioned two kinds of liquid form mixts that prepare are pumped in the static uniform mixer and mix, keep mixing of materials state and temperature and temperature in 110~C~120 ℃; Air-flow is blown into Venturi meter at a high speed,, dewaters in short-term in, granulating and drying the material sucking-off in the static uniform mixer with the mode of airflow atomizing, the time is 1 second~2 seconds, the moisture content of finished products 0.25%. after the dehydration; Then the material after the granulation is cooled off last powder charge, packing.The performance index of explosive are density 0.90g/cm 3, strong, the period of storage of gap distance 8cm, explosion velocity 4187m/s, brisance 17mm, capacity for work 372ml, water resisting property 9 months.
Embodiment 3.
Prepare raw material by following part by weight, promptly, 84 parts in ammonium nitrate, 3 parts of compound wax, 3 parts of additives, 10 parts in water, wherein compound wax is the mixture of paraffin and Vaseline, the ratio of both weight is 1: 1, additive is lipid acid or dodecyl nitrate, anion surfactant, the hydrate of sodium sulfate, combustible organic hydrophobic agent, and the ratio of each component is 7: 6: 70 in the additive: 17, and the flammable organic hydrophobic agent in the additive is one or more mixtures in pitch, rosin, diesel oil, the machine oil; Form liquid state with adding entry in the ammonium nitrate and being heated to 100 ℃~120 ℃, filter; Compound wax and additive are heated into liquid state jointly, filter; Simultaneously above-mentioned two kinds of liquid form mixts that prepare are pumped in the static uniform mixer and mix, keep mixing of materials state and temperature at 110 ℃~120 ℃; Air-flow is blown into Venturi meter at a high speed,, dewaters in short-term in, granulating and drying the material sucking-off in the static uniform mixer with the mode of airflow atomizing, the time is 1 second~2 seconds, the moisture content of finished products 0.15% after the dehydration; Then the material after the granulation is cooled off last powder charge, packing.The performance index of explosive are density 0.90g/cm 3, strong, the period of storage of gap distance 6cm, explosion velocity 3787m/s, brisance 16.4mm, capacity for work 354ml, water resisting property 7 months.

Claims (4)

1, a kind of high energy non-TNT powder explosive, the weight percentages of components that it is characterized in that explosive is: compound wax 4%~6%, additive 0.5%~4%, surplus is an ammonium nitrate, the moisture of finished product is lower than 0.3%, wherein compound wax is the mixture of paraffin and Vaseline, additive is lipid acid or dodecyl nitrate, anion surfactant, the hydrate of sodium sulfate, combustible organic hydrophobic agent, and the ratio of each component of additive is 1~10: 3~7: 60~80: 10~20.
2, by the described high energy non-TNT powder of claim 1 explosive, it is characterized in that: the paraffin in the compound wax is 1: 1 with the ratio of Vaseline weight, flammable organic hydrophobic agent in the additive is one or more mixtures in pitch, rosin, diesel oil, the machine oil, and anion surfactant is sodium lauryl sulphate or sodium methylene bis-naphthalene sulfonate.
3, the preparation method of the described high energy non-TNT powder of a kind of claim 1 explosive is characterized in that: prepare raw material in proportion, and wherein compound wax 4%~6%, additive 0.5%~4%, surplus is an ammonium nitrate; Adding entry and be heated to 100 ℃~120 ℃ in ammonium nitrate forms liquid; Heating compound wax and additive form liquid; Simultaneously two kinds of liquid form mixts are pumped in the static uniform mixer and mix, keep static uniform mixer temperature at 110 ℃~120 ℃; With the mode of airflow atomizing material dewatering, granulating and drying to static uniform mixer ox; Material after the granulation is cooled off powder charge then, packing in airtight water cooling plant.
4, by the preparation method of the described high energy non-TNT powder of claim 3 explosive, it is characterized in that dehydration, the time of explosive material under airflow atomizing is 1 second~2 seconds, the moisture content of finished products after the dehydration is lower than 0.3%.
CNB2004100403456A 2004-07-29 2004-07-29 High-energy powdery ammonium nitrate explosive with no sibium, and preparation method Expired - Fee Related CN1303042C (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102503742B (en) * 2011-11-10 2014-10-29 国营九八一五厂 Three-grade coal mine allowable emulsified explosive and preparation method thereof
CN103964983A (en) * 2013-02-06 2014-08-06 福建海峡科化股份有限公司 Powdery ammonium nitrate explosive complex lipid prepared from waste animal and plant greases and preparation method thereof
CN103408388B (en) * 2013-08-26 2015-12-23 中煤科工集团淮北爆破技术研究院有限公司 Powdery emulsion ammonium nitrate explosive
CN112552133A (en) * 2020-12-25 2021-03-26 雅化集团雅安实业有限公司 Low-detonation-velocity modified ammonium nitrate fuel oil explosive and preparation method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1003656B (en) * 1986-07-09 1989-03-22 国家海洋局海洋技术研究所 Sealing method of anodic aluminum oxide
CN1067646A (en) * 1992-05-29 1993-01-06 西安近代化学研究所 Nitramon explosive for non-TNT rock
CN1137507A (en) * 1996-04-19 1996-12-11 北京科技大学 Solid state emulsified compound granular explosive and its preparation method
CN1235945A (en) * 1999-05-28 1999-11-24 兴宁市华威化工实业有限公司 Method for preparing low TNT-equivalent ammonium nitrate-fuel oil explosive
CN1297872A (en) * 2000-10-26 2001-06-06 抚顺五一厂 Industrial powdered TNT-free explosive
CN1428318A (en) * 2001-12-26 2003-07-09 山东圣世达化工有限责任公司 Ammonium nitrate-fuel oil mixture and its production method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1003656B (en) * 1986-07-09 1989-03-22 国家海洋局海洋技术研究所 Sealing method of anodic aluminum oxide
CN1067646A (en) * 1992-05-29 1993-01-06 西安近代化学研究所 Nitramon explosive for non-TNT rock
CN1137507A (en) * 1996-04-19 1996-12-11 北京科技大学 Solid state emulsified compound granular explosive and its preparation method
CN1235945A (en) * 1999-05-28 1999-11-24 兴宁市华威化工实业有限公司 Method for preparing low TNT-equivalent ammonium nitrate-fuel oil explosive
CN1297872A (en) * 2000-10-26 2001-06-06 抚顺五一厂 Industrial powdered TNT-free explosive
CN1428318A (en) * 2001-12-26 2003-07-09 山东圣世达化工有限责任公司 Ammonium nitrate-fuel oil mixture and its production method

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