How to make fireworks and raw materials?

The existing fireworks are mainly made of potassium chlorate, sulfur, aluminum powder, coal powder, iron slag and so on. Due to the limitation of its composition, there are not only unsafe factors in preparation, processing, storage and transportation, but also unreasonable preparation of iron slag in medicine, which often blocks the fireworks hole after molten iron burns, which not only affects the fireworks discharge, but also easily causes explosion and sometimes personal injury. At present, in the production process of fireworks, if the original charging method and ignition charging structure are adopted, the excellent performance of fireworks propellant will not be brought into full play, mainly manifested in the phenomena of insufficient combustion and unstable ignition height, and the ideal ignition effect will not be achieved.