Er and other materials processing.Blast furnace burden is generally block, fuel is coke.Burden is added in batches from the top, forming a stock column.Air is added from tuyere below, coke burns in the tuyere(outlet)area, forming a high-temperature melting area;furnace burden reacts violently here, continue to melt.When you reduction smelting, melt was clarified in the hearth, metal and slag were released. When you matte smelting, the melt flows into the external crucible from internal crucible, to clarify the separation of matte and slag.Hot flue gas through the melt and reach th Lead pellet reduction smelting 25-40 up to 50 Copper raw concentrate isf smelting 45-55 up to 60 emand. Depend on your need