Agent combination of safe fireworks and firecracker

A composition and fireworks technology, applied in pyrotechnics, explosives, offensive equipment, etc., can solve the problems of high mechanical sensitivity and high danger, and achieve high safety and strong practicability

Inactive Publication Date: 2005-05-25
刘琼吾 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the firecracker agent with potassium chlorate as the oxidant has the advantages of good flammability, flammability, color aid, sound, paper shredding rate and economic applicability, its high risk and high mechanical sensitivity are fatal characteristics. must therefore be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Take 100 parts by weight of iron oxide, pulverize to 200-400 mesh, dry and set aside. Dry and crush ferrous sulfate to 200-400 mesh, put ferrous sulfate into a kneader, add 2% silane coupling agent by weight of ferrous sulfate, 3% superfine light calcium sulfate, 80-90°C Knead for 30 minutes to discharge and sieve to obtain slippery white ferrous sulfate. Then 100 parts of iron oxide, 10 parts of aluminum powder, 30 parts of ferrous sulfate, 10 parts of perlite powder and 5 parts of charcoal powder are uniformly mixed to obtain the safe fireworks and firecracker pharmaceutical composition. Test the composition according to the QB / T1914-94 method: impact sensitivity: hammer weight 10 kg, drop height 25 cm, measured value is 2%, friction sensitivity: gauge pressure 1.25Mpa, swing angle 60°, measured value is 3%. Embodiment 1,2,3,4,5 are listed as follows now:

[0032] project

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PUM

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Abstract

The invention relates to a safe firework and firecracker pharmaceutical composition, the components of which contain oxidizing agent, sulfate compound, aluminum powder, perlite powder and charcoal powder; the oxidizing agent is metal oxide and organic alkali nitrate, wherein the metal oxide is three Ferric oxide, ferric oxide, copper oxide, manganese oxide, zinc oxide, cobalt oxide, aluminum oxide, and the like. Organic base nitrates are urea nitrate, guanidine nitrate, nitroguanidine and the like. Ferrous sulfate is a gas expansion agent. The key is that ferrous sulfate first removes crystal water, pulverizes, and uses silane coupling agent for surface treatment, and uses calcium carbonate to neutralize residual acidity on the surface. Potassium chlorate is not included in the safety fireworks and firecrackers, which solves the problems of existing fireworks and firecrackers such as high impact sensitivity, high friction sensitivity and high risk. It is suitable for making fireworks and firecrackers.

Description

technical field [0001] The invention relates to a firework and firecracker safety agent composition, in particular to a safe firework and firecracker agent composition which uses organic alkali nitrate or metal oxide as an oxidant, sulfate to provide gas expansion, and aluminum powder as a combustible agent. Background technique [0002] In the prior art, for many years, potassium chlorate has been widely used as oxidizing agent and sulfur as combustible agent in the preparation of fireworks and firecracker agents. This type of agent is very easy to cause spontaneous combustion or explosion. Very prone to safety accidents in the production of firecrackers, Potassium Chlorate is extremely unstable and fickle. In the late nineteenth century, people gradually realized the high danger of potassium chlorate-containing agents. Britain banned all pyrotechnics containing potassium chlorate and sulfur in 1894, and the United States also banned the use of potassium chlorate-sulfur mix...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B33/00F42B4/00
Inventor 刘琼吾刘天水
Owner 刘琼吾
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