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| Experimental and Mechanism on Pellet-Making of Magnetic Iron Ore Concentrate in Han-Xing Area |
| LIU Cheng-song1, LI Jing-she1, YANG Shu-feng1, GAO Xiang-zhou1, MA Bo2 |
1. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
2. Xingtai Iron and Steel Limited Corporation, Xingtai 054027, Hebei, China |
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Abstract Based on the experiment for pelletizing in production, influence of bentonite proportion, water proportion and damp milling time on green ball properties in pellet-making of a magnetic iron ore concentrate in Han-xing area were investigated, which the optimum conditions were 2.0%, 8.5%-9.0% and 6 min respectively. Moreover, the effect of pre-heating temperature, pre-heating time, roasting temperature and roasting time on consolidation properties of the pellet was studied based on experiments in laboratory and the microstructure of pellet and consolidation mechanism were analyzed by optical microscope. Results show that the suitable pre-heating temperature and time were 880－920 ℃ and 20 min; the suitable roasting temperature and time were 1250 ℃ and 20 min.
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Received: 19 October 2013
Published: 13 October 2014
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2014, Vol. 49 
