RESEARCH ON DRUM STRENGTH AND METALLURGICAL PROPERTIES OF SINTER ORE
With the implementation of the"green,low-carbon,high-quality development"policy in the iron and steel industry,the blast furnace not only requires the sinter to have good physical and chemical properties,but also requires good thermal metallurgical properties.In view of the current emphasis on sinter drum strength and low temperature reduction pulverization index RDI+3 15 in blast furnace,while ignoring the one-sided requirement of reduction degree RI,through studying sintering mineralization mechanism,mineral composition characteristics,bonding phase characteristics and formation conditions,The influence of FeO,alkalinity R,gangue composition and different iron powder sintering on the strength and metallurgical properties of the drum was analyzed,and the appropriate FeO content,alkalinity R,MgO content,Al2O3 content and Al-Si ratio were obtained.At the same time,taking into account the drum strength,reduction degree RI,low temperature reduction pulverization index RDI+3.15mm and soft melting properties,the technical measures to improve the drum strength and metallurgical properties of sinter are put forward to provide sinter with excellent comprehensive indexes for blast furnace smelting.
sinterdrum strengthmetallurgical propertieslow temperature reduction pulverization ratededuction degree
万方数据
维普
