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Low-detonation-velocity explosive with adjustable detonation velocity and brisance and preparation process thereof

A technology of low detonation velocity explosives and detonation velocity, which is applied to explosives and other fields, and can solve problems such as poor safety, high sensitivity, and poor fluidity

Inactive Publication Date: 2015-04-08
陕西红旗民爆集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a low detonation velocity explosive with adjustable detonation velocity and intensity and a preparation process to solve the problems of high sensitivity, uneven mixing, poor safety, poor fluidity, and unstable detonation velocity in existing explosive welding explosives.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The formula for industrial production of 1000Kg low detonation velocity explosive is: 726.8Kg of ammonium nitrate, 31.6Kg of composite oil phase, 31.6Kg of wood powder, 210Kg of industrial salt, and 3.95Kg of stearylamine salt.

[0023] According to the above-mentioned components and mass ratio, the preparation operation steps are as follows:

[0024] Step 1: Weigh 726.8Kg of ammonium nitrate and 3.95Kg of octadecylamine salt into the ammonium nitrate crusher. After coarse crushing, it is sent to the cam grinder by 150±5°C hot air for re-grinding, and is dried during the hot air conveying process. After crushing and drying, the moisture content of ammonium nitrate is ≤0.2%, and the fineness is 85-95%. Pass through a 60-mesh sieve.

[0025] Step 2: Weigh 31.6Kg of the composite oil phase, melt it in a melting tank at 90-110°C, and keep it warm in a heat preservation tank at 120-130°C until use. Take by weighing 31.6Kg qualified wood flour and 210Kg industrial salt for ...

Embodiment 2

[0029] The formula for industrial production of 1000Kg low detonation velocity explosive is: 671.6Kg of ammonium nitrate, 29.2Kg of composite oil phase, 79.2Kg of wood flour, 220Kg of industrial salt, and 3.65Kg of stearylamine salt.

[0030] According to the above-mentioned components and mass ratio, the preparation operation steps are as follows:

[0031] Step 1: Weigh 671.6Kg of ammonium nitrate and 3.65Kg of octadecylamine salt into the ammonium nitrate crusher. After coarse crushing, it is sent to the cam grinder by 150±5°C hot air for re-grinding, and is dried during the hot air conveying process. After crushing and drying, the moisture content of ammonium nitrate is ≤0.2%, and the fineness is 85-95%. Pass through a 60-mesh sieve.

[0032] Step 2: Weigh 29.2Kg of the composite oil phase, melt it in a melting tank at 90-110°C, and keep it warm in a heat preservation tank at 120-130°C until use. Take by weighing 79.2Kg qualified wood flour and 220Kg industrial salt for l...

Embodiment 3

[0036] The formula for industrial production of 1000Kg low detonation velocity explosive is: 570.4Kg of ammonium nitrate, 24.8Kg of composite oil phase, 104.8Kg of wood powder, 300Kg of industrial salt, and 3.1Kg of stearylamine salt.

[0037] According to the above-mentioned components and mass ratio, the preparation operation steps are as follows:

[0038] Step 1: Weigh 570.4Kg of ammonium nitrate and 3.1Kg of octadecylamine salt into the ammonium nitrate crusher. After coarse crushing, it is sent to the cam grinder by 150±5°C hot air for re-grinding, and is dried during the hot air conveying process. After crushing and drying, the moisture content of ammonium nitrate is ≤0.2%, and the fineness is 85-95%. Pass through a 60-mesh sieve.

[0039] Step 2: Weigh 24.8Kg of the composite oil phase, melt it in a melting tank at 90-110°C, and keep it warm in a heat preservation tank at 120-130°C until use. Take by weighing 104.8Kg qualified wood flour and 300Kg industrial salt for ...

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Abstract

The invention provides a low-detonation-velocity explosive with adjustable detonation velocity and brisance and a preparation process thereof. According to the technical scheme, the low-detonation-velocity explosive is prepared by mixing the following components in percentage by mass: 52%-73% of ammonium nitrate, 2.0%-3.0% of a complex oil phase, 3%-16% of wood powder, 20%-30% of industrial salt and 0.3%-0.42% of a modifier. By the low-detonation-velocity explosive with adjustable detonation velocity and brisance, such problems of the existing explosive for explosive welding as high sensitivity, uneven explosive mixing, poor safety, poor fluidity, instable detonation velocity and the like are solved.

Description

technical field [0001] The invention belongs to the technical field of explosive manufacture, in particular to a low-detonation-velocity explosive with adjustable detonation velocity and intensity. Background technique [0002] Explosive welding is to use the energy generated by the explosion of explosives to make the doubler plate collide with the substrate at a very high speed, so that the interface between the two metal plates produces local severe plastic deformation and is tightly combined to form a good welding interface. This technology has been widely used in national defense, shipbuilding, petrochemical, metallurgy and other departments. As an energy source for explosive welding, the performance of low-velocity explosives will directly affect the quality of explosive welding. At present, there are mainly three production methods of low detonation velocity explosives in the explosive welding process at home and abroad. One method is to add heavy metal powder to the ...

Claims

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Application Information

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IPC IPC(8): C06B31/30
Inventor 李松元边旭来邹见宾朱荣强刘俊李琼黄卫星宋磊雒丽琼王鹏鸣
Owner 陕西红旗民爆集团股份有限公司
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