The flue gas of graphitization furnace mainly contains SO2, halogenated salt, Co, a small amount of benzopyrene, etc. If graphite purification is involved, Cl2 and Freon will be added There will also be chlorine and fluoride in the tail gas. The flue gas temperature from the furnace cover is about 200 ℃.

The flue gas treatment system of graphitization furnace includes flue gas collection furnace cover, flue gas pipeline system and flue gas treatment system. The flue gas treatment system includes dynamic wave cooling, dust removal and washing, desulfurization system and electrostatic dust removal system.