Blast furnace is the shaft furnace of metallurgical equipment.Blast furnace is used for melting furnace burden(ore,sinter or pellet) that contains metal components,melting need to add air or happen in oxygen-rich conditions,only do like this,we can get sulfur or furnace metal. 

    The blast furnace is one of the most important metallurgical equipment,it has the following characteristics:high thermal efficiency,high specific productivity(specific capacity),high metal recovery rate,low cost,less covering area and so on.