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Compound type desensitizing agent for pyrotechnic composition of fireworks

A fireworks and firecracker, composite technology, applied in the directions of non-explosive desensitizer/passivator, non-explosive/non-thermal agent component, explosive, etc. Deliquescence and other problems, to achieve the effect of good blasting power, strong working ability and slow burning speed

Active Publication Date: 2018-03-13
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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  • Compound type desensitizing agent for pyrotechnic composition of fireworks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

Embodiment 2-5

[0017] Embodiment 2-5 is different 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 obtain passivation-type fireworks and firecrackers to open explosives, propellants, and low-sensitivity, high-stability bright beads. for example:

[0020] Explosives: Prepared according to the ratio of parts by weight, composite insensitive agent: aluminum powder: potassium perchlorate = 10:10:20, and mix well according to the general method. The detonating explosive prepared with this compound desensitizing agent has the same amount of charge as the traditional detonating explosive of 3.6 g under the condition of 12 g bright beads in the inner cylinder, and the detonating width is 15-20 meters in diameter, which is up to the standard.

[0021] Propellant: Accor...

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Abstract

The invention discloses a compound type desensitizing agent for a pyrotechnic composition of fireworks. The compound type desensitizing agent is prepared from magnesium oxide, calcium stearate, bismuth trioxide, bis(cyclopentadienyl) iron and phthalic anhydride. Sulfur and barium nitrate in a traditional pyrotechnic composition of the fireworks are not used and combustion pollution is reduced; potential safety hazards are reduced; the friction impact degree of the pyrotechnic composition is greatly reduced; a combustion speed of the pyrotechnic composition is slow; after being ignited, the pyrotechnic composition is only combusted gradually in a tightly sealed environment, and a condition that violent explosion is generated instantly to form strong impact waves is avoided. Accidents in a firework production process are effectively avoided; bright beads are not combusted and exploded by high temperature in a roasting technological process; a barrel blowout problem can be solved on the pyrotechnic composition and the launching intensity is improved; the pyrotechnic composition has good explosion intensity and a strong acting capability; the combustion and explosion effects can meet technical requirements of explosives, the bright beads or propellant powder and the like.

Description

technical field [0001] The invention belongs to the technical field of fireworks and firecrackers, and in particular relates to a desensitizing agent for pyrotechnic powders. Background technique [0002] Common components of fireworks and firecrackers in the prior art, such as explosives, propellants, bright beads, etc., 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, leading to spontaneous combustion; barium nitrate is easy to deliquescence; and the obtained finished explosive has a low ignition temperature and a high friction impact sensitivity, and a slight friction impact or spark sputtering will produce a violent explosion. At the same time, the proportion of sulfur in the existing explosives is relatively large, which causes serious environmental pollution. SUMMARY OF THE INVENTION [0003] In order to solve the above-mentioned drawbacks, the purpose of the present i...

Claims

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Application Information

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IPC IPC(8): C06B23/00
CPCC06B23/005
Inventor 杜伯武
Owner 李健
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