期刊
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
卷 20, 期 5, 页码 11-16出版社
JOURNAL IRON STEEL RESEARCH EDITORIAL BOARD
DOI: 10.1016/S1006-706X(13)60090-4
关键词
oxygen blast furnace; softening; melting; mixed burden; basicity; reduction degree
资金
- National Basic Research Program (973 Program) of China [2012CB720401]
- National Key Technology Research and Development Program in 12th Five-Year Plan of China [2011BAC01B02]
The behaviors of mixed burden in the cohesive zone of oxygen blast furnace were studied by softening and melting tests, and the influence of reducing gas and burden basicity on the softening and melting behaviors of mixed burden was also investigated. The results indicated that the softening range became wide, however, the melting range narrowed sharply in the atmosphere of oxygen blast furnace. The permeability of burden in the oxygen blast furnace was obviously improved comparing with the conventional blast furnace. In addition, the content of sulphur in the dripping iron of oxygen blast furnace was much lower than that of conventional blast furnace, however, the content of carbon increased. An optimum basicity of burden, which could lead to the appearance of the narrower melting range and better permeability of burden, was obtained in the atmosphere of oxygen blast furnace.
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