Propellant for fireworks and crackers

A technology for fireworks and propellants, which is applied to explosives, inorganic oxyhalogen salt explosive compositions, offensive equipment, etc. It can solve problems such as short shelf life of propellants, deliquescent propellants, and weak launch power, and achieve obvious price advantages , the effect of low emission sound and simple production process

Inactive Publication Date: 2013-11-20
LILING HENGDA FIREWORKS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing fireworks and firecracker propellants all adopt the following raw materials in mass percentages to be formulated: 70% potassium nitrate, 20% charcoal, and 10% sulfur, and are successively weighed, ball milled, granulated, pressed into tablets, crushed, screened, and polished. In t

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Example 1, a propellant for fireworks and firecrackers, characterized in that said propellant for fireworks and firecrackers is made from the following raw materials and steps (adhesive is soluble glutinous rice flour),

[0032] The mass percent of each raw material described is:

[0033] Potassium perchlorate 55%, Potassium hydrogen terephthalate 30%,

[0034] Charcoal powder 10%, soluble glutinous rice flour (binder) 5%,

[0035] The steps described are:

[0036] (1) For mixing medicine, put potassium perchlorate, potassium hydrogen terephthalate, charcoal powder and soluble glutinous rice flour (adhesive) into the medicine mixing machine according to the above mass percentage and mix evenly or artificially sieve and mix three times to obtain the mixture powder;

[0037] (2) For granulation, use tap water as a solvent to mix the mixed medicinal powder, use a sugar coating machine to make small spherical particles, and spray misty tap water while doing it; or use a ...

Example Embodiment

[0038] Example 2, a propellant for fireworks and firecrackers, characterized in that said propellant for fireworks and firecrackers is made from the following raw materials and steps (adhesive is phenolic resin),

[0039] The mass percent of each raw material described is:

[0040] Potassium perchlorate 55%, Potassium hydrogen terephthalate 30%,

[0041] Charcoal powder 10%, phenolic resin (binder) 5%,

[0042] The steps described are:

[0043] (1) For mixing medicine, put potassium perchlorate, potassium hydrogen terephthalate, charcoal powder and phenolic resin (adhesive) agent in the mixing machine according to the above mass percentage and mix evenly or artificially sieve and mix three times to obtain the mixture powder;

[0044] (2) For granulation, use industrial alcohol as a solvent to mix the mixed medicinal powder, use a sugar coating machine to make small spherical particles, and spray mist alcohol while doing it; or use a sieve to make small particles, first use ...

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PUM

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Abstract

The invention relates to a propellant for fireworks and crackers. The propellant is prepared from the following four raw materials: potassium perchlorate, potassium hydrogen terephthalate, charcoal powder and an adhesive, wherein the adhesive is glutinous rice flour or phenolic resin. The propellant is prepared by the following steps: mixing: by mass percentage, the four raw materials are put into a gunpowder machine and are uniformly mixed to obtain mixed chemical powder; and prilling: the well mixed chemical powder is added into a solvent and is kneaded into powder balls, and the powder balls are made into small spherical particles by a sugarcoating machine or rubbed into small particles by a screen mesh, and then the propellant for the fireworks and crackers is obtained by drying in the sun. A finished product of the propellant for the fireworks and crackers is prepared from the four raw materials and by the two processes of mixing and prilling, the production technology is simple, ball milling, tabletting, crushing and other processes in which exploding is easy to occur can be omitted, and the safety performance of the propellant is greatly improved. The propellant has the advantages of low hygroscopicity, stable performance, long shelf life, small shot noises, high shot height, small lateral force, low production cost and less use amount, and has obvious price advantage.

Description

technical field [0001] The invention relates to a propellant for fireworks and firecrackers, which belongs to the field of fireworks and firecrackers manufacturing. Background technique [0002] Existing fireworks and firecracker propellants all adopt the following raw materials in mass percentages to be formulated: 70% potassium nitrate, 20% charcoal, and 10% sulfur, and are successively weighed, ball milled, granulated, pressed into tablets, crushed, screened, and polished. In the propellant, potassium nitrate is used as the oxidant, which has the advantage of low price, and the disadvantage of strong hygroscopicity and deliquescent propellant. The propellant produced has a short shelf life, large quality differences, and weak launch power. , the lateral force is larger. With the continuous improvement of the industrial level, there is an urgent need for a fireworks propellant with low production and use cost, simple production process, stable performance and long shelf ...

Claims

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Application Information

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IPC IPC(8): C06B29/12
Inventor 郭建虎文相春文剑文双钟长虎
Owner LILING HENGDA FIREWORKS
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