Effect of Converter Sludge on Compression Strength of Ozidized Pellets
Converter sludge generated in the process of steel making is a valuable secondary resource and suitable for iron ore pellet making. Effect of converter sludge on the strength of oxidized pellets and its mechanism was investigated. Meanwhile, with orthogonal experimental design, the effect of drying and preheating conditions on the pellet quality was studied, too. The results showed that the strength increased obviously after adding some converter sludge in pellets because it could improve Fe2O3 crystalloid connecting and make the structure of oxidized pellets more homogeneous and compact. The impacts of drying and preheating conditions on strength of oxidized pellets weakened as following order: drying temperature, drying time, preheating time and preheating temperature. Within these four facts, drying temperature and drying time was influential obviously. It is important and significative to study recycling use of converter sludge in pelletizing process.
converter sludge shaft furnace ozidized pellet strength microstructure
LIU Xiao-rong YU Fu-cheng WANG Jie-chao ZHANG Zhuo CHEN Jian-bin SUN Ya-qing
School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 200233, Chin Technique Center, Nanchang Steel Co., Ltd., Nanchang 330012, Jiangxi, China
国际会议
The 5th International Congress on the Science and Technology of Ironmaking(第五届国际炼铁科技大会 ICSTI09)
上海
英文
353-356
2009-10-20（万方平台首次上网日期，不代表论文的发表时间）