溶銑予備処理専用炉の操業制御技術

概要

論文の詳細を見る
A new technology for hot metal pretreatment with the modified BOF has been developed at Kobe Works. This technology has been successfully applied to mass production of high-grade steel since November 1983. The furnace for hot metal pretreatment has an 80 t capacity and is equipped with two lances for flux injection and oxygen top blowing. Hot metal is desiliconized and dephosphorized with oxygen and lime-iron oxide based flux in the first stage of refining, and desulphurization with soda ash injection is followed without deslagging. This report describes the operational control technology of this process. This operational control consists of the following items, (1) Calculation of the optimum amount of submaterials (2) Control of the temperature after treatment (3) Optimization of operational pattern and gives good results in stabilization of BOF operation, decrease of refining cost, and increase of productivity.
社団法人日本鉄鋼協会の論文
1988-06-01