Coal gasification furnace refers to the main equipment of coal gasification. There are many gasification methods according to the nature of coal and different requirements for gas. The corresponding gasification equipment includes fixed bed (moving bed) gasifier (such as UGI [gasifier, Lurgi Gasifier, etc.), fluidized bed (fluidized bed) gasifier (such as Winkler gasifier, etc.), entrained flow gasifier (such as K-T gasifier, Texaco gasifier, etc.).