摘要:
结合承钢烧结现场原料条件,研究了固体燃料种类和配比对钒钛磁铁矿烧结过程及烧结矿性能的影响。结果表明:当白煤代替焦粉作为烧结用固体燃料后,烧结矿中的磁铁矿、硅酸盐和玻璃质含量降低,而赤铁矿和铁酸钙含量升高,有利于改善烧结矿的冷态机械强度和低温还原粉化性能。承钢烧结的固体燃料配比不宜太高,当焦粉作为承钢烧结的固体燃料时,其配比应控制在5%左右;当白煤作为承钢烧结的固体燃料时,其配比应控制在5.5%至6%之间比较适宜。综合考虑,承钢烧结应采用白煤作为固体燃料,而烧结矿的FeO含量控制在7%左右为宜。
Abstract:
Based on the material condition of Chenggang sintering state,the effects of solid fuel types and ratio on sintering process and metallurgical property of agglomerate with vanadium were researched.The results show that with the white coal instead of coke powder as solid fuel,the magnetite,silicate and glassiness content in agglomerate decrease,while hematite and calcium ferrite content increase,which make cold mechanical strength and low temperature reduction degradation of agglomerate improve.High solid fuel ratio is not proper for Chenggang sintering.The optimal ratio of coke powder served as the solid fuel is about 5 %;when the white coal serves as solid fuel,the ratio is about 5.5 %～6%.In conclusion,the white coal should be used as solid fuel in Chenggang,while the optimal FeO content of agglomerate with vanadium is about 7%.
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