Processing method of single-base powder and double-base powder for fireworks

Abstract

The invention discloses a processing method of single-base powder and double-base powder for fireworks. The processing method comprises the following steps: (1) removing impurities from technical materials, preparing raw materials, namely, a. removing sundries such as metals contained in the single-base powder and the double-base powder, and b. watering for humidifying; (2) processing wet powder, namely, a. putting the materials in a pulverizer, pulverizing the materials to powder with 40-100 meshes, and b. carrying out centrifugal dewatering, namely, dewatering and drying by using a centrifugal machine, wherein the dewatering time is 20-25 minutes, and the water content is 10-15%; (3) screening and grading, namely, a. screening under the condition of wetting, and 40-60 mesh wet powder and 60-80 mesh wet powder, b. screening powder with 80-100 or above meshes by using water, and c. grading and packaging the screened wet powder; (4) processing dry powder, namely, a. carrying out electric heating drying on the wet powder or drying the wet powder in the sun, wherein the drying temperature is 35 to 65 degrees, the time is 20-24 hours, and the water content of the powder is 1-5%, and b. cooling for 2-4 hours at a natural temperature, and mechanically cooling for 1 hour, thus obtaining the single-base powder and the double-base powder for fireworks; and (5) packaging finished products, namely, sealing and packaging by using anti-static and damp-proof fiber woven bags, and putting the finished products in storages. The processing method has the advantages of simple and convenient processing, good safety and the like.

Description

technical field [0001] The invention relates to a processing method for single-base powder and double-base powder for fireworks, and belongs to the technical field of pyrotechnic raw materials used in the fireworks industry. Background technique [0002] In the prior art, the production of fireworks generally uses black powder as spray agent. However, when the black powder burns, it will produce more black smoke, which seriously affects the viewing effect of fireworks products and pollutes the environment. In order to enhance the discharge of fireworks products, In order to achieve the best ornamental effect, use the propellant that has been scrapped for military use—single-base powder and double-base powder to replace the black powder used in fireworks, so as to achieve the development of environmentally friendly fireworks with little smoke. At present, there is a problem in resource utilization of discarded single-base powder and double-base powder: how to reprocess and ma...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the production of fireworks generally uses black powder as spray agent. However, when the black powder burns, it will produce more black smoke, which seriously affects the viewing effect of fireworks products and pollutes the environment. In order to enhance the discharge of fireworks products, The ornamental effect of the military is used to replace the black powder used in fireworks by using the propellant that is scrapped for military use - single-base powder and double-base powder, so as to achieve the development of environmentally friendly fireworks with little smoke

At present, the problem in resource utilization of scrapped single-base powder and double-base powder is: how to reprocess and manufacture the military colloidal powder used for guns and shells to meet the needs of fireworks drugs

However, for the processing of single-base powder and double-base powder, some use simple manual crushing methods, and some use remote operation mechanical crushing methods, but because the processing temperature is too high, it is easy to burn and cause explosion and injury accidents