single stage coal gasifier 1.Design Under the medium of gasification, heated through hearth, solid fuel produces flammable gas fixed with gas, which would be pass to the muzzle of heating treatment furnace by gas line for conbustion to heat the work pieces. 2.Characteristics reasonable structure, low cost, safe and easy for operation, sound smoke abatement effect and being for environment protection, the important facility in heating treatment system. 3.Applicability Mainly used in machine, metallurgy, non-ferrous metal, chinaware, glass, chemical industries.