Experimental Study on Sintering Properties of Indian High-silicon Iron Ore Powder
The physical and chemical properties of Indian high-silicon iron ore powder were tested and analyzed.According to the actual conditions of raw materials used by Ansteel,the sintering cup ore blending testing of high-silicon iron ore powder imported from India and iron concentrate produced by Ansteel was carried out.The experimental testing results showed that the ratio of high-silicon iron ore powder produced by India had a great effect on the drum strength and utilization coefficient of sintered ore.With the increasing of the ratio of high-silicon iron ore powder,the yield of sintered ore decreased and the consumption of fuels increased,while the proportion of[10,40)mm particle sizes of sintered ore decreased,the proportion of(0,5)mm particle sizes increased and the low-temperature reduction pulverization index of sintered ore became worse.So taking all factors into consideration on all the technical indexes in terms of sintering production,the optimum proportion of Indian high-silicon iron ore powder was between 10%and 20%.And further from the point of view of improving the low-temperature reduction pulverization index,the optimum proportion of Indian high-silicon iron ore powder was about 10%.
Indian iron ore powderhigh-siliconsintering properties