... system before the smelting furnace, such as coal, coal ash, coal mud, coke powder, coking coal, iron ore concentrates, chromate ore concentrates ... matter, ceramic filter sand and metallurgical powder Cold pellet making industry.2.It is widely used in the ... of high efficiency, energy saving and environment protection.Coal briquette machinery technical parameters ModelYQJ-290YQJ-360YQJ-400YQJ-500YQJ ...