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Smokeless emission chemical for fireworks

A technology of medicament and micro-smoke, applied in the direction of explosives, etc., can solve the problems of large-scale fireworks display effects, safety and stability sensitivity, urban air pollution, etc., and achieve the effects of mechanized production, convenient transportation, and good safety and stability

Inactive Publication Date: 2014-03-19
杨培江
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large smoke, the effect of large-scale fireworks that are set off in a centralized manner is seriously affected, and it also causes great pollution to the urban air near the discharge site, and is sensitive to safety and stability, and has the phenomenon of rapid combustion and rapid explosion.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Pass the raw materials through a 200-mesh sieve, take 20 parts by weight of nitrocellulose, 5 parts of graphite, 25 parts of carboxymethyl cellulose, 3 parts of hemp stalk charcoal powder, 40 parts of Chinese fir charcoal powder, 2 parts of ammonium dichromate, nitric acid 10 parts of barium and 40 parts of potassium perchlorate are mixed evenly, then 50 parts of acetone and 100 parts of alcohol are added, mixed with wet and kneaded evenly, dried and ground to make the micro-smoke propellant of the present invention.

Embodiment 2

[0016] Prepared according to the method of Example 1, the difference is the weight parts of each component:

[0017] 120 parts of nitrocellulose, 10 parts of graphite, 5 parts of carboxymethyl cellulose, 40 parts of hemp stalk charcoal powder, 3 parts of fir charcoal powder, 30 parts of ammonium dichromate, 30 parts of barium nitrate, 5 parts of potassium perchlorate, 100 parts of acetone 50 parts of alcohol.

Embodiment 3

[0019] Prepared according to the method of Example 1, the difference is the weight parts of each component:

[0020] 80 parts of nitrocellulose, 8 parts of graphite, 15 parts of carboxymethyl cellulose, 20 parts of hemp stalk charcoal powder, 20 parts of fir charcoal powder, 15 parts of ammonium dichromate, 20 parts of barium nitrate, 25 parts of potassium perchlorate, 75 parts of acetone 75 parts of alcohol.

[0021] Tested by the National Fireworks and Firecrackers Product Quality Supervision and Inspection Center, the micro-smoke propellants prepared in the above embodiments have a friction sensitivity of 26% (swing angle of 50 degrees, hydraulic pressure of 0.64Mpa), impact sensitivity of 18%, and moisture absorption rate ≤ 0.78 %, ignition temperature 186.9, thermal stability test without combustion and explosion, no rapid burning and rapid explosion, and the stability test results at 75°C are all "stable" (the friction sensitivity test method is carried out in accordance...

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Abstract

The invention relates to a smokeless emission chemical for fireworks. The smokeless emission chemical consists of the following components in parts by weight: 20-120 parts of nitrocellulose, 5-10 parts of graphite, 5-25 parts of carboxymethylcellulose, 3-40 parts of charcoaled hemp stalk powder, 3-40 parts of charcoaled fir powder, 2-30 parts of ammonium dichromate, 10-30 parts of barium nitrate and 5-40 parts of potassium perchlorate. The smokeless emission chemical produces smoke only after being burnt, which is 80% less than that of fireworks made from conventional materials; the smokeless emission chemical is free from sulfur dioxide, and the riction sensitivity, collision degree, heat absorption, wet absorption and compatibility are superior to those of the common military saltpeter.

Description

[0001] technical field [0002] The invention relates to a pyrotechnic composition, in particular to a micro-smoke propellant agent for fireworks. Background technique [0003] In the prior art, the propellant used for fireworks mostly produces smog, and simultaneously produces sulfur dioxide and sulfur trioxide. Due to the large smoke, the effect of the large-scale fireworks that are set off is seriously affected, and it causes great pollution to the urban air near the discharge site, and is sensitive to safety and stability, and has the phenomenon of rapid combustion and rapid explosion. Contents of the invention [0004] The object of the present invention is to provide a kind of propellant for fireworks with little smoke and no sulfur dioxide after burning, and which can maintain various safety indicators. [0005] The micro-smoke propellant agent for fireworks provided by the present invention comprises the following components in parts by weight: 20-120 parts of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B31/24
Inventor 邹立生杨培江
Owner 杨培江
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