Mechanism and control of metallized pellet bonding at high temperature
Author(s): QIN Jie, LIU Gongguo, Pangang Group Research Institute Co., Ltd., State Key Laboratory for Vanadium Titanium Resources Comprehensive Utilization
Pages: 5-8
Year: 2014 Issue: 6
Journal: Research on Iron and Steel
Keyword: metallized pellet; bonding at high temperature; oxidation;
Abstract: In this paper,the problem of metallized pellet bonding at high temperature,which appeared in the pilot production of Panggang pilot plant for resources comprehensive utilization,is analyzed.It was found that low melting silicate phase bonding and titanomaghemite intergranular consolidation led to the metallized pellet bonding,and both of them were caused by metallized pellet reoxidation.Experiments were carried out to investigate the influence of different anti-oxidation ways on pellet metallization rate,and to verify it with the method of nitrogen protection.Results show that metallized pellet bonding could be avoided effectively by nitrogen protection,which could ensure smooth pilot production of metallized pellet.
Pages: 5-8
Year: 2014 Issue: 6
Journal: Research on Iron and Steel
Keyword: metallized pellet; bonding at high temperature; oxidation;
Abstract: In this paper,the problem of metallized pellet bonding at high temperature,which appeared in the pilot production of Panggang pilot plant for resources comprehensive utilization,is analyzed.It was found that low melting silicate phase bonding and titanomaghemite intergranular consolidation led to the metallized pellet bonding,and both of them were caused by metallized pellet reoxidation.Experiments were carried out to investigate the influence of different anti-oxidation ways on pellet metallization rate,and to verify it with the method of nitrogen protection.Results show that metallized pellet bonding could be avoided effectively by nitrogen protection,which could ensure smooth pilot production of metallized pellet.
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