All aluminum in the world is produced by electrolysis. The aluminum electrolysis industry adopts the Hall-Elu cryolite-alumina melt salt electrolysis production method, that is, the cryolite mainly composed of cryolite as a flux, and the alumina is a molten phase composed of a multiphase electrolyte system. Among them, the Na2AlF6-Al2O3 binary system and the Na3AlF6-AlF3-Al2O3 ternary system are the basis of industrial electrolytes. The electrolytic aluminum industry has a great impact on the environment and belongs to industries with high energy consumption and high pollution. The exhaust gas discharged from the production of electrolytic aluminum is mainly CO2, and gas-solid fluoride mainly composed of HF gas. CO2 is a greenhouse gas that is the main cause of global warming. The CF4 and C2F6 in fluoride have a greenhouse effect of 6500-10000 times of carbon dioxide, and will have different effects on the ozone layer. HF is a highly toxic gas that enters the body through the skin or respiratory tract and can be killed by only 1.5g. Main Controller,Ws2811 Dmx Controller,Outdoor Remote Controller,Program Led Pixel Controller Shen zhen SH LED Technology Co.,Ltd , https://www.pixellightsolutions.com