Metallurgist.in

1. QUALITY OF CHARGE MATERIAL: A blast furnace charge consists of coke, ore or sinter, and limestone. These materials must be in lumps of a certain size (40-60 mm). Larger lumps prolong the process of reduction and fluxing. Smaller lumps block the flue-gas passages and prevent …

1. Ore Crushing: Ore comes from mines in lumps up to 1 m. across. The lumps are reduced in size in several stages: Primary crushing: – Here they break down to 100-200 mm. Secondary crushing: – Here they break down to10- 50 mm. Fine crushing :- …

Burden materials are charged into the blast furnace from the top and air is blown in at the bottom which is used to burn the fuel. Smelting products, iron and slag, run of at the bottom. THROAT: It is a cylinder serving to load charge and …