|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals and Materials 2021
||Study on the Influence of Lumpy Zone Condition on Coke Degradation in Blast Furnace
||Yang Li, Shengfu Zhang, Hua Zhang, Yunpeng Fang, Guangsheng Suo
|On-Site Speaker (Planned)
Coke plays very important roles in blast furnace iron-making process. In blast furnace, coke serves as heating agent, reducing agent and a permeable support. In the lumpy zone of the blast furnace where coke and ore are interlaced in layers, the mechanical impact of solid charge, high temperature thermal impact, carbon dissolution reaction and corrosion of alkali metal may cause the degradation of coke. The knowledge of coke degradation is still limited, because of the lack of convenient access to observe coke degradation directly within blast furnace. In this paper, particle size, strength, porosity and surface morphology of different cokes were studied under simulated temperature, pressure and gas condition in lumpy zone. The quality parameters of cokes researched in this study can explain the major factors of coke degradation within lumpy zone.
Keywords: Coke degradation; Lumpy zone; Carbon dissolution; Top charging coke; Tamping coke