... before the smelting furnace, such as coal, coal ash, coal mud, coke powder, coking coal, iron ore concentrates, chromate ore ... concentrates, mgo power, copper power, chrome ore power, Lead Zinc Ore, steel slag, aluminum ash ... high efficiency, energy saving and environment protection. Coal briquette machinery technical parametersModelYQJ-290YQJ-360YQJ-400YQJ- ...