Li Junhan, Qiu Kehui, Yang Shaoli. Study on the Moulding Process of Vanadium-bearing Titaniferous Magnetite Concentrate Pellets Containing Carbon[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(2): 62-67. doi: 10.7513/j.issn.1004-7638.2014.02.012
Citation:
Li Junhan, Qiu Kehui, Yang Shaoli. Study on the Moulding Process of Vanadium-bearing Titaniferous Magnetite Concentrate Pellets Containing Carbon[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(2): 62-67. doi: 10.7513/j.issn.1004-7638.2014.02.012
Li Junhan, Qiu Kehui, Yang Shaoli. Study on the Moulding Process of Vanadium-bearing Titaniferous Magnetite Concentrate Pellets Containing Carbon[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(2): 62-67. doi: 10.7513/j.issn.1004-7638.2014.02.012
Citation:
Li Junhan, Qiu Kehui, Yang Shaoli. Study on the Moulding Process of Vanadium-bearing Titaniferous Magnetite Concentrate Pellets Containing Carbon[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(2): 62-67. doi: 10.7513/j.issn.1004-7638.2014.02.012
1. Chengdu University of Technology, Chengdu 610059, Sichuan, China;
2. Key Laboratory of Comprehensive Utilization for Vanadium & Titanium Resources of Sichuan Province, Panzhihua University, Panzhihua 617000, Sichuan, China
By taking polyvinyl alcohol as binding agent and vanadium-bearing titaniferous magnetite concentrate and pulverized coal as raw materials,the influences of moisture,moulding pressure,the mass ratio of ore to coal and the amount of binding agent added on the metallization ratio of the pellets during direct reduction were studied through a series of orthogonal experiments and single factor experiments,and their influencing rules were analyzed.The results show that the affecting factors in order of descreasing importance are moisture,moulding pressure,the mass ratio of ore to coal and the amount of binding agent added.The optimized process parameters obtained are 9% of moisture,12 MPa of moulding pressure,100:22 of the mass ratio of ore to coal,0.4% of the amount of binding agent added,1 350℃ of temperature and 30min of reduction time.Under these conditions,the metallization ratio of the pellets can be up to 92.97%.
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