a process for improving the fluidity of residual slag in bof slag pots

摘要

Slag fluidity is important process in steel making for transportation of the slag from the converter to the slag dump yard. Slag splashing is practiced in many of the steel plants for improving the converter life. For better splashing effectiveness the fluid slag is saturated with MgO by adding Dolomite which makes the slag viscous. In slag splashing, left over slag after tapping the steel, is blown with Nitrogen at high pressure. Due to this, the temperature of the slag drops heavily & becomes cold. Time gap between deslagging and slag dumping in slag yard further aggravates the problem due to loss of temperature. Thus the present invention relates to a process for improving the slag fluidity by controlling the slag basicity and temperature in slag pot to carry it to the slag yard without any problem.