| 摘要 |
<p>PURPOSE: To provide a treating furnace for reforming a reduced slag to a composition close to oxidized slag by melting and reacting reduced slag with dust obtained as a steel mill discharge, capable of reducing the size of the furnace body and enabling efficient treatment of reduced slag in powdery state as well as molten state and to provide a process for the operation of the furnace. CONSTITUTION: The furnace body 12 of a treating furnace 10 is made to be tiltable, a slag charging port 24 is opened on either one of the right and left side walls and a slag discharging port 28 is opened on the other side wall. A pure oxygen burner 22 is placed as a heating means at the upper part of the furnace body. Powdery dust 40 and reduced slag 42 are blasted together with a flame from the pure oxygen burner 22 while tilting the furnace body 12 forward. The dust and slag are melted and reacted with each other and the obtained reacted slag is discharged from the slag discharging port 28. As an alternative method, the furnace body 12 is tilted backward and the reduced slag is charged into the furnace body through the slag charging port 24.</p> |
