The harmful off gas ge nerated in EAF steelmaking,especially in the per iod of scrap preheating,are hazardous to human being,it has become an important environmental question in many countries .

• 电弧炉炼钢过程,特别是废钢预热过程所产生的多种有害烟尘对人类的危害,已成为各国需要解决的环保课题。