Operation of long-time stable and smooth in No.4 blast furnace of WISCO
This paper summarizes the experience of long-term stability and high output of blast furnace.It is believed that measures in terms of raw materials such as strengthening coke inspection and sieving,reducing coke powder entering the furnace,tracking the moisture content of coke to provide a basis for adjusting the furnace condition,preventing the adhesion of furnace body by reducing zinc load into the furnace after recognizing the harm,and ap-propriately reducing the the tuyere area through years of exploration,high-level use of air temperature and precise adjustment of the distribution system are the key.Thanks to the improvement of various conditions,silicon content in hot metal is controlled at 0.3%～0.5%,while the physical heat of molten iron remains above 1500℃.From 2020 to the first half of 2023,the furnace type is relatively stable and the average utilization coefficient has reached 2.55 t/(m3·d)in the front rank of the same type blast furnaces.
万方数据
维普
