... a spiral Feeding Device. it can be used to suppress coal, iron, coke, aluminum powder, iron oxide skin, slag, gypsum, ... good economic and social benefits.Usage of Coal Briquette MachineIt is widely used in coal powder, sludge, slag , gypsum, activated carbon, ... , non-ferrous powder and other refractories.Main Technical Parameter of Coal Briquette Machine ModelHJXM-360HJXM-430 HJXM-520 HJXM-670 HJXM ...