Process and system for manufacturing military nitre or black gunpowder

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.