|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||7th International Symposium on High Temperature Metallurgical Processing
||The Preheating and Roasting Properties of Fluorine-bearing Iron Concentrate Pellets and Main Influence Factors
||Lu Yang, Shuai Wang, Ganghua Fu, Yufeng Guo, Tao Jiang
|On-Site Speaker (Planned)
The fluorine-bearing iron concentrate is one of the refractory raw materials for pelletization, which is mainly used in Baotou iron and steel company with lots of problems, such as narrow roasting temperature range and low compressive strength of products. According to its specific character, the effects of roasting atmosphere, temperature, time on the compression strength and microstructure of pellets were researched. The results show that low melting substances formed during the roasting was the dominant reason of those problems. High melting substances were added in the roasting to investigate their effects on the roasting properties of fluorine-bearing iron concentrate pellets. Low melting substances were reduced when chromite was added. The compression strength of products was 3100N/P when the 2% chromite was added at the roasting temperature of 1150 ║C, which was increased 700 N/P compared with the pellets without chromite, and the roasting temperature range was expanded 170 ║C.
||Planned: A print-only volume