Use of Cold-bound Pellet Prepared from Recycled Sinter in Yuzhong Steel 2800 m3 BF
It is described the current utilization of the recycled sinter and the feasibility of using cod-bound pellet prepared from the recycled sinter in blast furnace,and introduced,especially,the technical development results of the cold-bound pellet preparation and its use in Yuzhong Steel 2800 m3 BF.The quality indexes of the said pellet meet the BF requirements for the stock metallurgical properties,such as compressive strength,decrepitation behavior,reducibility and degradation in-dex,reduction performance and softening performance.The production practice of the furnace suggests that the said cold-bound pellet can improve the furnace permeability and utilization rate of gas,promote stable smooth running of the furnace,and their use will bring good economic and social benefits.Compared with the situation before using the said cold-bound pel-let,the gas utilization rate increases by 4％-5％,and the cost of pig iron drops by 10.2 yuan/t as the charge of the cold-bound pellet accounts for 5％.
blast furnacerecycled sintercold-bound pelletssintercost of pig iron
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