|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||7th International Symposium on High Temperature Metallurgical Processing
||Ringing Mechanism and Prevention of Ringing in Kiln
||Yong-bin Yang, Yan Zhang, qian li, bin xu, Xiaoliang Liu
|On-Site Speaker (Planned)
Aiming at the ringing problem in kiln and using the typical kiln rings as the objects, the ringing mechanism at different locations in kiln were studied systematically by combining the chemical and physical properties with the analysis of macrostructure and microstructure. Based on the mechanism, some control and preventive measures were put forward. The results show that in the kiln tail, highly active secondary Fe2O3 powder could easily form a loose ring and adhere to pellet surface to form ring by agglomerating pellets; on the kiln head where there was a low oxidizing atmosphere, a compact ring was easily formed by Fe3O4 powder due to recrystallization of Fe3O4, meanwhile small amounts of pellets were encapsulated during the ringing and generated a botryoid ring by melting Fe3O4 powder and pellets together in high temperature areas; most importantly, the undesirable preheating effect on pellet was the fundamental cause to formation of ring.
||Planned: A print-only volume