Process and system for manufacturing military nitre or black gunpowder

Abstract

The invention discloses a process for manufacturing military nitre or black gunpowder. The process for manufacturing the military nitre or black gunpowder comprises the following steps: 1) selecting raw materials; 2) respectively screening the raw materials by virtue of a sieve more than 100 meshes; 3) batching and mixing, namely batching the screened single raw material, placing the batched raw materials into an automatic pyrotechnic composition mixing machine, and mixing for 3-5 minutes until the raw materials are uniformly mixed; 4) moistening medicine and carrying out continuous tabletting, pelletizing and sorting; 5) drying and cooling, namely drying gunpowder particles obtained in step 4) by virtue of an infrared ray optical wave pipe or a hot air channel and then cooling the gunpowder particles; 6) spraying a moisture-proof agent or polishing, namely placing the gunpowder particles in step 5) into a moisture-proof agent spraying tank, spraying a proper amount of a moisture-proof agent, spraying while the moisture-proof agent spraying tank is rotated, uniformly covering or polishing, so that a moisture-proof effect is realized; 7) drying, cooling and packaging the medicine particles sprayed with the moisture-proof agent in step 6). The invention also discloses a system for manufacturing the military nitre or black gunpowder. The process and system for manufacturing the military nitre or black gunpowder have the advantages of easy operation, implementation of pipeline process control, low labour cost, high production efficiency, low labour intensity, high safety coefficient, high density of the produced gunpowder particles and good follow-up using effect.

Description

technical field [0001] The invention relates to the field of mechanical processing and manufacturing, in particular to a process and system for manufacturing military nitrate or black powder particles for launching. Background technique [0002] Since ancient times, there are two methods of black powder manufacturing: dry method and wet method. Most of the black powder prepared by the dry method is powdered medicine, while most of the black powder prepared by the wet method is granular medicine. Granular medicine has better fluidity. The manufacture of black powder for fireworks and firecrackers used to use the "fried nitrate" process in the past. Charcoal and fried nitrate are mixed and ground, and then crushed sulfur is added to mix, and then put into storage after screening. "Fried nitrate" is to break up the soil nitrate and add water to dissolve it, remove a layer of foam and part of the water on the surface of the melted liquid, heat, evaporate, and crystallize, and...

AI Technical Summary

Problems solved by technology

However, the problems of analyzing and researching this process method are as follows: 1. The process is time-consuming and labor-intensive

The whole process is not only time-consuming, but also requires a lot of labor

2. The dose of medicine involved in the process is large, and the safety risk of the three ball mills is very high

The mixing amount of the three ball mills is 180-250kg, and the single polishing is 500kg. There have been many explosion accidents in the ball mill manufacturing process at home and abroad, causing heavy property losses and casualties.

3. The mixing uniformity and quality controllability of ball milling are not high

We know that the key to ball mill preparation is how to control the rotating speed of the drum of the ball mill. However, in actual production operations, "appropriate rotating speed of the drum" can only be said to be an expectation, and it is difficult to guarantee

In addition, due to the difference in material density, the collision frequency and crushing degree of the ball and the material are uncontrollable, and the uniformity of mixing and the controllability of quality cannot meet the design requirements.

[0004] It can be seen that the current military nitrate or black powder manufacturing process takes at least 40 hours, and each production line requires 15 people to maintain normal production

This processing and manufacturing method takes a long time, requires high labor costs, high labor intensity, low production efficiency, and there is a safety risk of gunpowder explosion.

Images