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A compound desensitizing agent for pyrotechnic powder of fireworks and firecrackers

A kind of fireworks and firecrackers, composite technology, applied in the direction of non-explosive desensitizer/passivator, non-explosive/non-thermal agent components, explosives, etc. Deliquescence and other problems, to achieve the effect of good explosive force, strong work ability, and avoid heating and spontaneous combustion

Active Publication Date: 2021-01-29
李健 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the alloy is easy to ferment and heat up in a humid environment, resulting in spontaneous combustion; barium nitrate is easy to deliquescence; and the finished product has a low ignition temperature and high friction and impact sensitivity, and a slight friction impact or Mars sputtering will produce a violent explosion.
At the same time, the proportion of sulfur in the existing explosives is relatively large, which seriously pollutes the environment

Method used

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  • A compound desensitizing agent for pyrotechnic powder of fireworks and firecrackers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: A kind of composite desensitizing agent for pyrotechnic powder of fireworks and firecrackers, is made up of the following components of weight and number ratio: 40 parts of magnesium oxide, 5 parts of calcium stearate, 1 part of bismuth trioxide, bicyclic Pentadiene iron 10 parts, phthalic anhydride 5 parts. According to the above ratio, each component was weighed and fully stirred and sieved to obtain a 120-mesh impurity-free passivator product.

Embodiment 2-5

[0017] Embodiment 2-5 differs from embodiment 1 in that the proportioning of each component is different, see the following table:

[0018]

[0019] The composite desensitizers prepared in the above-mentioned embodiments can be compounded by the manufacturers themselves according to the effect requirements to make deactivated fireworks and firecrackers explosives, propellants and low-sensitivity, high-stability bright beads. for example:

[0020] Explosives: prepared according to the ratio of parts by weight, composite desensitizer: aluminum powder: potassium perchlorate = 10:10:20, and mixed uniformly according to the general method. The cracking explosive configured with this compound desensitizing agent is equipped with 12g of bright beads in the inner cylinder, which is equivalent to the traditional cracking charge of 3.6g, and the diameter of the blasting surface is 15-20 meters, which meets the standard.

[0021] Propellant: prepared according to the ratio of parts b...

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Abstract

The invention discloses a compound desensitizing agent used for pyrotechnic powder of fireworks and firecrackers. The compound desensitizing agent is composed of magnesium oxide, calcium stearate, bismuth trioxide, dicyclopentadiene iron and phthalic anhydride. Cancel the use of sulfur and barium nitrate in traditional fireworks and firecrackers pyrotechnics, reduce discharge pollution; reduce potential safety hazards; greatly reduce the friction and impact sensitivity of pyrotechnics; Combustion will not produce a violent explosion in an instant to form a powerful shock wave. Effectively avoid accidents in the production process of fireworks; the bright beads will not burn and explode due to high temperature during the baking process; the propellant can solve the problem of blasting tubes and improve the launching force; the pyrotechnic powder has good explosiveness and strong workability , the detonation effect can meet the technical requirements of explosives, bright beads or propellants.

Description

technical field [0001] The invention belongs to the technical field of fireworks and firecrackers, in particular to a desensitizing agent for pyrotechnics. Background technique [0002] Commonly used components of fireworks and firecrackers such as explosives, propellants, and bright beads in the prior art include sulfur, alloys, aluminum powder, barium nitrate, and the like. Among them, the alloy is easy to ferment and heat up in a humid environment to cause spontaneous combustion; barium nitrate is easy to deliquescence; and the finished explosive has a low ignition temperature and high friction and impact sensitivity. A slight friction impact or spark sputtering will produce a violent explosion. Simultaneously, the proportion of sulfur in the existing explosives is relatively large, which seriously pollutes the environment. Contents of the invention [0003] In order to solve the above disadvantages, the object of the present invention is to provide a desensitizing age...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B23/00
CPCC06B23/005
Inventor 杜伯武
Owner 李健
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