Influence of MgOAddition on Sinter Strength of Blast Furnace
In this paper, the MgO-containing sinter is studied. Laboratory-scale experiments are carried out to investigate the effects of MgO addition on the strength of binding phase and sinter from powdered ore. The underlying mechanisms of these effects are also explored. Then, pilot-scale experiments are carried out by using a sinter pot to investigate the effectsof MgO addition on the strength of sintered ore and other sintering production indices. The results show that the increased MgO addition plays a negative role both in binding phase strength and sinter strength. As MgO addition increases from 1.3% to 3.0%, the drum index (DI) of the sintered ore with R=1.76 is decreased from 67.86% to 62.35%, the productivity of the sinter pot is decreased from 2.22 t/m2·h to 1.34 t/m2·h. Therefore, less MgO addition is favourable for the strength of sintered ore, after considering its effect on RDI and the proper MgO content in BF slag.
MgO sintered ore binding phase strength
JIANG Xin ZHANG Li LI Guang-sen JIN Ming-fang WANG Zhong SHEN Yan-song SHEN Feng-man
School of Materials and Metallurgy, Northeastern University, Shenyang 110004, Liaoning, China CISDI ShanghaiEng. Co., Ltd., Shanghai 200940, China University of New South Wales, Sydney, NSW 2052, Australia
国际会议
The 5th International Congress on the Science and Technology of Ironmaking(第五届国际炼铁科技大会 ICSTI09)
上海
英文
256-260
2009-10-20（万方平台首次上网日期，不代表论文的发表时间）