CN101323551B - Rock powdery emulsifying ammonium nitrate fuel explosive and preparing process thereof - Google Patents

Rock powdery emulsifying ammonium nitrate fuel explosive and preparing process thereof Download PDF

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CN101323551B
CN101323551B CN2007100117405A CN200710011740A CN101323551B CN 101323551 B CN101323551 B CN 101323551B CN 2007100117405 A CN2007100117405 A CN 2007100117405A CN 200710011740 A CN200710011740 A CN 200710011740A CN 101323551 B CN101323551 B CN 101323551B
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explosive
ammonium nitrate
fuel oil
powdery emulsifying
oil mixture
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CN101323551A (en
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杨桂廷
胡殿贵
马晓军
李树生
李新富
徐桂苹
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Liaoning Hongshan Chemical Co Ltd
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Liaoning Hongshan Chemical Co Ltd
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Abstract

The invention discloses a rock powdery emulsion ammonium nitrate fuel oil explosive and a preparation technology thereof. The explosive is characterized in that the explosive is prepared by compositing powdery emulsion explosive and ammonium nitrate fuel oil explosive, wherein, the powdery emulsion explosive accounts for 25 percent to 35 percent of the total weight of the explosive and the ammonium nitrate fuel oil explosive accounts for 65 percent to 75 percent of the total weight of the explosive. The ammonium nitrate fuel oil explosive consists of ammonium nitrate, wood powder, compound oil phase and a modifier. The ingredients of the emulsion explosive mainly include: ammonium nitrate, olefin, ozocerite, colophony and a dispersant. The detonation velocity, sympathetic detonation distance and explosive grading of the invention are improved as the powdery emulsion explosive which has the effect of sensitization is added into the ammonium nitrate fuel oil. The production technology of the invention is simple and the production process is safe. The performance of the product is stable and reliable, with relatively strong explosive and storage performance when the moisture in finished explosive is up to 0.8 percent. The explosive performance of the explosive of the invention reaches and exceeds No. 2 rock AN-TNT explosive which contains trinitrotoluene; in addition, the explosive of the invention has better environment protection property during production and use, thus complying with the development requirements of explosive industry.

Description

Rock powdery emulsifying ammonium nitrate fuel explosive and preparation technology thereof
Technical field
The present invention relates to a kind of powdery pyrotechnic composition, particularly a kind ofly do not contain the preparation method that tritonal has rock powdery emulsifying ammonium nitrate fuel explosive and this explosive of high blast performance.
Background technology
The powdered TNT-free explosive of domestic production at present mainly is divided into ammonium nitrate-fuel oil mixture, ammonium drop wax explosive and ammonium pine wax explosive, this class explosive advantage is not contain TNT, little to environment and human health damage, production security is good, raw materials cost is low relatively, shortcoming is that blast performance is poor, in the production process quality control relatively the difficulty, promptly the brisance of explosive and explosion velocity are difficult to reach standard-required; And the good powdery emulsifying explosive of detonation velocity and Sensitivity to Primary Explosion is because technology and technology, and cost of manufacture is higher, and operating device is comparatively complicated.Its production security is low than ammonium nitrate-fuel oil mixture.200610134822.4 of the applicant's application, title: " water-proof non-TNT powder industrial explosive and preparation technology thereof " technology, with ammonium nitrate, compound oil phase and wood powder is main raw material, add composite additive and water repellent agent and carry out continuous automatic production, the blast performance of explosive, storage property and water resisting property have been improved preferably, but this explosive is used for rock, colliery blasting, and performances such as its detonation velocity and Sensitivity to Primary Explosion, gap distance, brisance are still not ideal enough.
Summary of the invention
The objective of the invention is to improve the defective that exists in the above-mentioned explosive application, the advantage and the characteristic of comprehensive utilization ammonium nitrate-fuel oil mixture and emulsion explosive, it is rock powdery emulsifying ammonium nitrate fuel explosive that a kind of binary explosive with high gap distance, high explosion velocity, high brisance is provided, and the preparation technology of this explosive is provided.
The present invention utilizes the good characteristic of high explosion velocity, high gap distance and high Sensitivity to Primary Explosion that powdery emulsifying explosive has, and compound formulated with ammonium nitrate-fuel oil mixture, wherein powdery emulsifying explosive accounts for 25~35% of explosive gross weight, and ammonium nitrate-fuel oil mixture accounts for 65~75% of gross weight.Powdery emulsifying explosive is the similar powdered industrial explosive that is formed by the spray-dried back of water-in-oil-type emulsion matrix, and it is mixed in common ammonium nitrate-fuel oil mixture, can replace tritonal, plays sensibilized in explosive, increases the blast performance of binary explosive.Used dispersion agent is selected polyisobutene succinimide for use; Composite modifier is selected the mixture of being made up of octadecane amine, sodium lauryl sulphate, alkyl sodium sulfate fat, talcum powder, whiting for use.
The raw material of powdery emulsifying explosive composition and weight percent proportioning are in the binary explosive of the present invention: ammonium nitrate 89~91.5%, paraffin 1.0~1.4%, ceresine 1.0~1.4%, rosin 1.3~1.8%, dispersion agent 1.2~2.0%, water 4~6%.
The raw material of ammonium nitrate-fuel oil mixture is formed and the weight percent proportioning is: ammonium nitrate 91.5~93.5%, compound oil phase 2.8~4.0%, wood powder 3.5~4.5%, composite modifier 0.2~0.4%.
Adopt the preparation method of above-mentioned its binary explosive of starting material to carry out according to the following steps:
(1) preparation of powdery emulsifying explosive
A) water preparation: it is soluble in water to account for the powdery emulsifying explosive weight percent and be 89~91.5% ammonium nitrate, and temperature is controlled at 132~138 ℃;
B) oil phase preparation: paraffin, 1.0~1.4% ceresine, 1.3~1.8% rosin and 1.2~2.0% the dispersion agent that will account for powdery emulsifying explosive weight percent 1.0~1.4% carry out mixed melting, and temperature is controlled at 120~125 ℃;
C) water and oil phase are sent into emulsor, enter the dry powder process of drying tower after the emulsification;
(2) preparation of ammonium nitrate-fuel oil mixture
A) composite modifier of getting the ammonium nitrate that accounts for ammonium nitrate-fuel oil mixture 91.5~93.5% and 0.2~0.4% by weight percentage mixes and pulverizes, in 80~95 ℃ of drying 15~20min;
B) add the compound oil phase that accounts for ammonium nitrate-fuel oil mixture 2.8~4.0% in dried material and mix 5~10min, temperature is controlled at 80~95 ℃;
C) add the wood powder cooling mixing 5~10min account for ammonium nitrate-fuel oil mixture weight 3.5~4.5%, treat that temperature reduces to 30 ℃ with bottom discharge, moisture content≤0.3%;
(3) explosive is mixed
Send into mixing machine and mix accounting for the powdery emulsifying explosive of explosive gross weight 25~35% and 65~75% ammonium nitrate-fuel oil mixture, temperature of charge is controlled at below 30 ℃ before mixing.
The present invention is owing to added the powdery emulsifying explosive of a sensibilized in ammonium nitrate-fuel oil mixture, detonation velocity, gap distance and the brisance of product have been improved, production technology is simple, production process safety, product performance are reliable and stable, reach at 0.8% o'clock at finished product explosive moisture content, still possess stronger blast performance and shelf characteric.
The present invention mainly is applicable to the discontinuous production or the continuous automatic production of rock powdery emulsifying ammonium nitrate fuel explosive.The non-TNT powder industrial explosive that adopts the present invention to produce, not only environmental protection, safety, and have higher blast performance and package stability.Common ammonium nitrate-fuel oil mixture generally will detonate by means of other high strength explosive, and rock powdery emulsifying ammonium nitrate fuel explosive of the present invention does not need other primary explosive, only need No. 8 detonators directly to ignite and get final product, not only saved time in the blasting process, laborsaving but also reduced blasting cost.Following table is common ammonium nitrate-fuel oil mixture and rock powdery emulsifying ammonium nitrate fuel explosive performance comparison test result of the present invention:
Figure G07111740520070717D000031
Below in conjunction with drawings and Examples the present invention is described in detail:
Fig. 1 is a process flow sheet of the present invention.
Embodiment 1:
One, explosive raw material weight proportion
Raw material: ammonium nitrate-fuel oil mixture (wherein ammonium nitrate accounts for 92%, wood powder 4.2%, the self-control of compound oil phase 3.5%<this enterprise), octadecane amine 0.3%) accounts for 70% of explosive gross weight.
Powdery emulsifying explosive (wherein ammonium nitrate accounts for 91%, and water 4.0%, paraffin 1.1%, ceresine 1.1%, rosin 1.3%, dispersion agent are the production of polyisobutene succinimide<Hongyuan, Yongji, Shanxi chemical industry company limited〉1.5%) accounts for 30% of explosive gross weight.Raw material summation 100%.
Two, preparation technology
(1) preparation of powdery emulsifying explosive
A) water preparation: it is soluble in water to account for the powdery emulsifying explosive weight percent and be 91% ammonium nitrate, and temperature is controlled at 132~138 ℃;
B) oil phase preparation: paraffin, 1.1% ceresine, 1.3% rosin and 1.5% the dispersion agent that will account for powdery emulsifying explosive weight percent 1.1% carry out mixed melting, and temperature is controlled at 120~125 ℃;
C) water and oil phase are sent into emulsor with spiral pump, emulsification is after spray gun is squeezed into the dry powder process of drying tower;
(2) preparation of ammonium nitrate-fuel oil mixture
A) composite modifier of getting the ammonium nitrate that accounts for ammonium nitrate-fuel oil mixture 925% and 0.3% by weight percentage mixes and pulverizes, in 80~95 ℃ of drying 15~20min;
B) add the compound oil phase that accounts for ammonium nitrate-fuel oil mixture 3.5% in dried material and mix 5~10min, temperature is controlled at 80~95 ℃;
C) add the wood powder cooling mixing 5~10min account for ammonium nitrate-fuel oil mixture weight 4.2%, treat that temperature reduces to 30 ℃ with bottom discharge, moisture content≤0.3%;
(3) explosive is mixed
Send into mixing machine and mix accounting for the powdery emulsifying explosive of explosive gross weight 30% and 70% ammonium nitrate-fuel oil mixture, temperature of charge is controlled at below 30 ℃ before mixing.
Embodiment 2:
One, explosive raw material weight proportion
Raw material: ammonium nitrate-fuel oil mixture (wherein ammonium nitrate accounts for 93%, wood powder 3.5%, compound oil phase 3.1%, octadecane amine and talcum powder each 0.2%) account for 70% of explosive gross weight.
Powdery emulsifying explosive (wherein ammonium nitrate accounts for 90%, water 5%, paraffin 1.2%, ceresine 1.0%, rosin 1.3%, polyisobutene succinimide 1.5%) accounts for 30% of explosive gross weight.Raw material summation 100%.
Two, preparation technology is with embodiment 1.

Claims (3)

1. a rock powdery emulsifying ammonium nitrate fuel explosive is characterized in that this explosive is compound formulated by powdery emulsifying explosive and ammonium nitrate-fuel oil mixture, and wherein powdery emulsifying explosive accounts for 25~35% of explosive gross weight, and ammonium nitrate-fuel oil mixture accounts for 65~75% of gross weight;
The raw material of described powdery emulsifying explosive is formed and the weight percent proportioning is:
Ammonium nitrate 89~91.5% paraffin 1.0~1.4%
Ceresine 1.0~1.4% rosin 1.3~1.8%
Dispersion agent 1.2~2.0% water 4~6%
The raw material of described ammonium nitrate-fuel oil mixture is formed and the weight percent proportioning is:
Ammonium nitrate 91.5~93.5% compound oil phases 2.8~4.0%
Wood powder 3.5~4.5% composite modifiers 0.2~0.4%.
2. according to the described rock powdery emulsifying ammonium nitrate fuel explosive of claim 1, it is characterized in that described dispersion agent selects polyisobutene succinimide for use; The mixture that composite modifier is made up of octadecane amine, sodium lauryl sulphate, alkyl sodium sulfate fat, talcum powder, whiting.
3. according to the preparation method of the described rock powdery emulsifying ammonium nitrate fuel explosive of claim 1, it is characterized in that the preparation method of this explosive carries out as follows:
(1) preparation of powdery emulsifying explosive
A) water preparation: it is soluble in water to account for the powdery emulsifying explosive weight percent and be 89~91.5% ammonium nitrate, and temperature is controlled at 132~138 ℃;
B) oil phase preparation: paraffin, 1.0~1.4% ceresine, 1.3~1.8% rosin and 1.2~2.0% the dispersion agent that will account for powdery emulsifying explosive weight percent 1.0~1.4% carry out mixed melting, and temperature is controlled at 120~125 ℃;
C) water and oil phase are sent into emulsor, enter the dry powder process of drying tower after the emulsification;
(2) preparation of ammonium nitrate-fuel oil mixture
A) composite modifier of getting the ammonium nitrate that accounts for ammonium nitrate-fuel oil mixture 91.5~93.5% and 0.2~0.4% by weight percentage mixes and pulverizes, in 80~95 ℃ of drying 15~20min;
B) add the compound oil phase that accounts for ammonium nitrate-fuel oil mixture 2.8~4.0% in dried material and mix 5~10min, temperature is controlled at 80~95 ℃;
C) add the wood powder cooling mixing 5~10min account for ammonium nitrate-fuel oil mixture weight 3.5~4.5%, treat that temperature reduces to 30 ℃ with bottom discharge, moisture content≤0.3%;
(3) explosive is mixed
Send into mixing machine and mix accounting for the powdery emulsifying explosive of explosive gross weight 25~35% and 65~75% ammonium nitrate-fuel oil mixture, temperature of charge is controlled at below 30 ℃ before mixing.
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CN101967073B (en) * 2010-10-11 2012-07-04 谢斌 Heavy ammonium nitrate-fuel oil explosive with detonator sensitivity produced by using chemical sensitization
CN102199065A (en) * 2011-04-19 2011-09-28 湖北东神楚天化工有限公司 Powder return preventing modified ammonium nitrate fuel oil explosive
CN105820019B (en) * 2016-03-18 2018-06-26 中煤科工集团淮北爆破技术研究院有限公司 A kind of modified ammonium nitrate-fuel oil explosive
CN106365932A (en) * 2016-08-31 2017-02-01 南京群峰复合材料有限公司 On-site mixed loading car heavy ammonium nitrate-fuel oil explosive and preparation method thereof
CN106365933A (en) * 2016-08-31 2017-02-01 南京群峰复合材料有限公司 Heavy ammonium nitrate-fuel oil explosive and preparation method thereof
CN110357755B (en) * 2019-07-15 2021-05-11 河南华通化工有限公司 Preparation method of mixed emulsion explosive
CN110304980B (en) * 2019-07-15 2021-05-04 河南华通化工有限公司 Mixed emulsion explosive and preparation method thereof
CN114773133B (en) * 2022-04-02 2023-04-28 山西同德化工股份有限公司 Rock petroleum emulsion explosive for top hole charging

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CN1031362A (en) * 1987-08-21 1989-03-01 东川矿务局 Granulated emulsion explosive for rocks
CN1038268A (en) * 1988-06-02 1989-12-27 冶金工业部长沙矿冶研究院 Formula and preparation method of emulsion mixed explosive
CN1088901A (en) * 1992-12-29 1994-07-06 华东工学院 Powdered ammonium nitrate-fuel oil explosive and manufacture method thereof
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CN1448375A (en) * 2002-04-04 2003-10-15 中国石油化工股份有限公司 Prep. of oil phase for powered nitro-amine compound explosive
CN1566039A (en) * 2003-06-12 2005-01-19 南京理工大学 Rock powder shaped emulsion explosive and manufacturing method thereof

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Publication number Priority date Publication date Assignee Title
CN1031362A (en) * 1987-08-21 1989-03-01 东川矿务局 Granulated emulsion explosive for rocks
CN1038268A (en) * 1988-06-02 1989-12-27 冶金工业部长沙矿冶研究院 Formula and preparation method of emulsion mixed explosive
CN1088901A (en) * 1992-12-29 1994-07-06 华东工学院 Powdered ammonium nitrate-fuel oil explosive and manufacture method thereof
CN1092054A (en) * 1993-03-10 1994-09-14 北京矿冶研究总院 Ammonium nitrate emulsified mine explosive
CN1137507A (en) * 1996-04-19 1996-12-11 北京科技大学 Solid state emulsified compound granular explosive and its preparation method
CN1448375A (en) * 2002-04-04 2003-10-15 中国石油化工股份有限公司 Prep. of oil phase for powered nitro-amine compound explosive
CN1566039A (en) * 2003-06-12 2005-01-19 南京理工大学 Rock powder shaped emulsion explosive and manufacturing method thereof

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