CN1280974A

CN1280974A - Process for preparing powdered industrial explosive

Info

Publication number: CN1280974A
Application number: CN 00126110
Authority: CN
Inventors: 张振新; 杨新林; 明景谷; 饶森宏; 邵师懿; 潘天洪; 杨柳文; 吴多义; 刘奕忠; 彭忠吉; 曾庆汉; 李洪杰
Original assignee: HUAWEI CHEMICAL INDUSTRIAL Co Ltd XINGNING
Current assignee: Guangdong Huawei Chemicals Industrial Co., Ltd.
Priority date: 2000-08-19
Filing date: 2000-08-19
Publication date: 2001-01-24
Anticipated expiration: 2020-08-19
Also published as: CN1140483C

Abstract

A powdered industrial explosive without TNT component is prepared from ammonium nitrate, wood powder, rosin, composite oil phase, additive and modified reducer. Its advantages include low investment, no environmental pollution, no harm to worker's health, and high safety and reliability.

Description

The preparation method of non-TNT powder industrial explosive

The present invention relates to a kind of powdery pyrotechnic composition, especially a kind of preparation method who does not contain the powder industrial explosive of tritonal.

Domestic non-TNT powder explosive mainly contains bulking ammonium nitrate explosive and powdery emulsifying explosive.Bulking ammonium nitrate explosive is because investment of production equipment is big, and ammonium nitrate is after puffing, and surface-area increases greatly and causes charge density on the low side, has influenced the detonation property of explosive; Powdery emulsifying explosive is except that facility investment is big, and its technical difficulty is also bigger, and production technique is comparatively complicated, and also there is certain difficulty in powder charge at present.Other non-TNT powder industrial explosive, all the composition of adding single chmical compound explosive in various degree (as urea nitrate, perchlorate, hydrazine nitrate, sulphur, HMX etc.) all because of problems such as its security and cost factors, fails to form industrial production line.Abroad, except that ammonium nitrate-fuel oil mixture, Shang Weijian has the report of this type of powder industrial explosive.

Purpose of the present invention just provides the existing air stream drying of a kind of application-rolling production unit, and adjustment member prescription and production technique just can be produced and the suitable non-TNT powder industrial explosive of 2# rock powdery industrial explosive performance.

Non-TNT powder industrial explosive of the present invention is made up of ammonium nitrate, wood powder, rosin, compound oil phase, additive, reductive modification agent.Compound oil phase is that its weight percent in explosive is 2.5～3% by compound special-purpose grease, department's benzene-80, the pro rata mixture of soybean phospholipid.Additive is the mixture that sodium lauryl sulphate, alkyl sodium sulfate fat, potassium primary phosphate, talcum, magnesite and whiting etc. select its 2～3 kinds of compositions, and its weight percent in explosive is 0.15～0.3%.The reductive modification agent is respectively to get a kind of ground and mixed in fibrous bagasse, awns bar, chaff, wood powder and acetate octadecane amine, acetate n-Laurylamine, AES and SODIUMNITRATE, ammonium nitrate, the urea three class materials to form, and its weight percent in explosive is 4.5～6.5%.

The preparation method of non-TNT powder industrial explosive of the present invention: (1) gets 85～90% ammonium nitrate by weight percentage after the beater grinder coarse crushing, and is in small, broken bits through the cam pulverizer, uses warm air drying, ammonium nitrate is broken to more than 92% through 40 mesh sieves moisture content≤0.1%; (2) dried ammonium nitrate adds 0.15～0.3% additive, enter high temperature (the machine temperature is less than 110 ℃), heavily grind in stone roller (the heavy 800Kg of the stone roller) wheel roller and mix, when playing big dirt, adding 4.5～6.5% reductive modification agent mixed 2～5 minutes, pour 2.5～3% compound oil phases into, remix discharging in 5 minutes, 80 ℃～90 ℃ of material temperature; (3) compound that will the go up operation wheel roller of cutting or polish jade with an emery wheel (400Kg) in low temperature (water cooling) is cooled to 65 ℃-70 ℃, adds 3～4% wood powders and 0.3～0.5% rosiny mixture, rolls discharging in 5～8 minutes, 45 ℃～55 ℃ of material temperature, water content≤0.15%.

The present invention has eliminated tritonal and has produced hazardous and noxious substances, contaminate environment and the healthy hidden danger of harm direct labor owing to there is not the tritonal composition.Simultaneously, do not add any other single chmical compound explosive in the prescription, have safe and reliable characteristics.The present invention is applicable to the production technique of the most of producers of present China " air stream drying-rolling " method, is easily accepted by vast producer, is that China's explosive industry is saved huge investment simultaneously.

Below in conjunction with accompanying drawing, the invention will be further described.

Fig. 1 is a process flow sheet of the present invention.

Embodiment one

1, raw-material making

(1) compound oil phase is by 94% compound special-purpose grease, department's benzene-80 of 5.5% and 0.5% soybean phospholipid, drops into fusing preparation in the melting pot, and temperature is controlled at 85 ℃, and the oil phase that makes is evenly not stratified.

(2) additive is selected 0.1Kg sodium lauryl sulphate, potassium primary phosphate 0.1Kg and 0.05Kg steatitic mixture for use.

(3) wood powder 90% have by 40 mesh sieve inputs in the drying machine of steam jacket dry, dried 3Kg wood powder and in small, broken bits after 0.5Kg rosin uniform mixing.

(4) the reductive modification agent is to form water content≤0.1% by 1.65Kg bagasse, 2.8Kg urea and 0.05Kg acetate n-Laurylamine ground and mixed.

(5) ammonium nitrate passes through 40 mesh sieves, water content≤0.1% through air stream drying, drying treatment fineness more than 92%.

2, the preparation method of non-TNT powder industrial explosive:

Get ammonium nitrate 89.25Kg after the beater grinder coarse crushing, in small, broken bits through secondary cam pulverizer, use warm air drying, make 93% ammonium nitrate through 40 mesh sieves, moisture content is 0.09%; Dried ammonium nitrate adds the 0.25Kg additive, enters high temperature, 105 ℃ of machine temperature, heavily grind in stone roller (stone roller heavily the is 800Kg) wheel roller and mix, when playing big dirt, add the agent of 4.5Kg reductive modification and mixed 5 minutes, pour the discharging in 5 minutes of the compound oil phase remix of 2.5Kg into, the material temperature is 88 ℃; Low temperature (using water cooling), the wheel roller of middle stone roller (the heavy 400Kg of stone roller) is cooled to 70 ℃, adds 3Kg wood powder and 0.5Kg rosiny mixture with the compound of above-mentioned operation, rolled 52 ℃ of material temperature, water content 0.12% 7 minutes, medicinal powder powder charge with after the subzero treatment obtains the 100Kg finished product.

Embodiment two

1, raw-material making

(1) compound oil phase is by department's benzene-80 of 92.5% compound special-purpose grease and 6.5% and 1% soybean phospholipid, drops into fusing preparation in the melting pot, and temperature is controlled at 85 ℃, and the oil phase that makes is evenly not stratified.

(2) additive is selected the mixture of 0.1Kg potassium primary phosphate and 0.06Kg whiting for use.

(3) wood powder 90% have by 40 mesh sieve inputs in the drying machine of steam jacket dry, dried 3.6Kg wood powder and in small, broken bits after 0.4Kg rosin uniform mixing.

(4) the reductive modification agent is to form water content≤0.1% by 2Kg chaff, 0.1KgAES and 4Kg SODIUMNITRATE ground and mixed.

(5) making of ammonium nitrate and embodiment's one is identical.

2, the preparation method of non-TNT powder industrial explosive:

Get ammonium nitrate 86.64Kg after the beater grinder coarse crushing, the cam pulverizer is in small, broken bits, uses warm air drying, makes 94% ammonium nitrate through 40 mesh sieves, and moisture content is 0.1%; Dried ammonium nitrate adds the 0.16Kg additive, enters high temperature, 100 ℃ of machine temperature, heavily grind in stone roller (stone roller heavily the is 800Kg) wheel roller and mix, when playing big dirt, add the agent of 6.1Kg reductive modification and mixed 2 minutes, pour the discharging in 5 minutes of the compound oil phase remix of 2.8Kg into, the material temperature is 82 ℃; Low temperature (using water cooling), the grinding and mixing machine of middle stone roller (the heavy 400Kg of stone roller) is cooled to 66 ℃, adds 4Kg wood powder and 0.3Kg rosiny mixture with the compound of above-mentioned operation, grind and mix discharging in 5 minutes, 45 ℃ of material temperature, water content 0.13%, medicinal powder powder charge with after the subzero treatment obtains the 100Kg finished product.

The non-TNT powder explosive that my company produces, after testing, induced detonation 〉=5cm, brisance 〉=13mm, explosion velocity 〉=3300m/s, power 〉=320ml, storage period 〉=6 month, other safety performance is all in the scope of national standard (GB12437-2000).

Claims

1, a kind of ammonium nitrate, wood powder, rosin, compound oil phase, the non-TNT powder industrial explosive that additive and reductive modification agent are formed is characterized in that:

(1) compound oil phase is the mixture of compound special-purpose grease, department's benzene-80 and soybean phospholipid, and its weight percent in explosive is 2.5～3%;

(2) additive is a sodium lauryl sulphate, and alkyl sodium sulfate fat, potassium primary phosphate, talcum, magnesite and whiting select the mixture of its 2～3 kinds of combinations, and its weight percent in explosive is 0.15～0.3%;

(3) the reductive modification agent is respectively to get a kind of ground and mixed in bagasse, awns bar, chaff, wood powder and acetate octadecane ammonium, acetate dodecane ammonium, AES and SODIUMNITRATE, ammonium nitrate, the urea three class materials to form, and its weight percent in explosive is 4.5～6.5%.

2, a kind of preparation method of non-TNT powder industrial explosive is characterized in that:

(1) get 85～90% ammonium nitrate by weight percentage after the pulverizer coarse crushing, the cam pulverizer is in small, broken bits, uses warm air drying, make ammonium nitrate more than 92% through 40 mesh sieves, moisture content≤0.1%;

(2) dried ammonium nitrate adds 0.15～0.3% additive, enter high temperature and heavily cut or polish jade with an emery wheel wheel roller and grind to mix, when playing big dirt, add 4.5～6.5% reductive modification agent and mixed 2～5 minutes, pour the discharging in 5 minutes of 2.5～3% compound oil phase remix into, 80 ℃～90 ℃ of material temperature;

(3) compound in (2) is cut or polish jade with an emery wheel wheel roller in low temperature and be cooled to 65 ℃～70 ℃, add 3～4% wood powders and 0.3～0.5% rosiny mixture, roll discharging in 5～8 minutes, 45 ℃～55 ℃ of material temperature, water content≤0.15%.