PRODUCTION OF LOW SILICON HOT METAL IN BLAST-FURNACES

Information is given enabling the scope for producing low silicon steelmaking hot metal at Polish blast furnace plants to be assessed. It is concluded that low silicon hot metal is best produced from a well blended charge in large blast furnaces with axial gas flow. It has been shown experimentally that transfer of silicon into hot metal depends largely on the SiO emission properties of the coke, and coke quality could expediently be used for controlling hot metal silicon content.