Additive used for fireworks medicament pelletizing process and adding method thereof

Abstract

The invention relates to an additive used for fireworks medicament pelletizing process and an adding method thereof, belonging to the field of fireworks and firecrackers. Potassium dichromate and cooked glutinous rice flour are taken as the additive, wherein the mass of the potassium dichromate accounts for 1%-3% of the total mass of fireworks medicament, and the particle size of the potassium dichromate is smaller than 80 meshes; and the cooked glutinous rice flour is taken as adhesion agent, and the mass of the cooked glutinous rice flour accounts for 1%-4% of the total mass of the fireworks medicament. The adding method is as follows: when mixing medicament raw material, adding potassium dichromate with the mass accounting for 1%-3% of the total mass of the medicament, and the particle size being smaller than 80 meshes, mixing uniformly; and in the bonding process, replacing the additive by the cooked glutinous rice flour accounting for 1%-4% of the total mass of the medicament, and preparing the cooked glutinous rice flour into 3%-8% of water solution. In the invention, the additive is low in cost, the using amount is little, the adding process is simple, the problem of heat accumulation in the pelletizing process of the fireworks medicament is solved, so that the temperature of the medicament is the same as that of the environment, the explosion accident is avoided, and the additive can not affect the setting-off performance of the original medicament formula.

Description

technical field [0001] The invention relates to an additive used in a pyrotechnic agent granulation process and an adding method thereof, belonging to the field of fireworks and firecrackers. Background technique [0002] In the production process of pyrotechnics and pyrotechnic agents, in order to improve the fluidity of the agent, reduce the dust in the process of screening and charging, and achieve accurate filling of the agent, it is necessary to granulate the agent. With the development of science, chemical deposition method, water suspension method, electromagnetic sputtering deposition method and high-speed dispersing agent method have been researched and developed. The pyrotechnic agent granulation process generally first mixes the agent raw materials evenly, and then binds the raw materials into granules with a binder. But at the same time, pyrotechnic agents contain flammable and explosive substances such as aluminum powder and aluminum-magnesium alloy powder. Esp...

AI Technical Summary

Problems solved by technology

But at the same time, pyrotechnic agents contain flammable and explosive substances such as aluminum powder and aluminum-magnesium alloy powder. Especially in the granulation process, they will chemically react with binder solvents such as water or alcohol to release heat, resulting in pyrotechnic agent The increase in temperature and the consumption of aluminum powder and magnesium-aluminum alloy powder produce macroscopically perceptible heat and chemical phenomena, that is, the formation of chemical energy, that is, heat generation. When the heat released by the chemical reaction gradually exceeds the heat emitted by the pyrotechnic agent, The heat will be accumulated slowly, and then the temperature will gradually rise, the chemical reaction will accelerate sharply, and the temperature will also rise sharply, so that it will reach the spontaneous ignition point of the agent at a certain moment, causing a combustion explosion accident

Moreover, some binders participate in the reaction of the agent, which changes the oxygen balance value of the original agent and seriously affects the physical and chemical properties of the pyrotechnic agent.

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