|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||8th International Symposium on High Temperature Metallurgical Processing
||E-46: Comparison of the Ringing Characteristics between Acid and Alkaline Iron Ore Pellets Powder in Kiln
||Yong-Bin Yang, Xin Min, Qian Li, Bin Xu, Tao Jiang, Xiao-liang Liu, Yan Zhang
|On-Site Speaker (Planned)
The ringing characteristics of acid and alkaline pellet scrap powder in kiln were studied by the thermodynamic calculation using software FactSage7.0, roasting experiments using briquetting method and analyses of SEM-EDS. The thermodynamic calculation showed that liquid phase could be generated from alkaline pellet powder at a lower temperature and the amount of formed liquid phase at the same temperature was much more than that from acid pellet powder. Roasting experiments indicated that the compressive strength of alkaline pellet powder briquettes were also higher than that of acid pellet powder briquettes. Additionally, the analyses of SEM-EDS suggested that the alkaline pellet powder briquette presented more liquid phase and a more compact structure comparing with the acid pellet powder briquette, which was consistent with the results of thermodynamic calculation and roasting experiments. Hence, in comparison with acid pellet powder, alkaline pellet powder is much easier to ring in the kiln.
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