论文部分内容阅读
a.每喷吹100kg/t铁煤粉,炉缸煤气量较全焦冶炼时增加4.6%(若喷烟煤还应大一些),炉缸总热量减少5.3%,理论燃烧温度降低200℃。b.炉缸煤气中H2和CO+H2成分显著增加,H2增加50m3/t铁,使煤气粘度低,热导率较其它气体高7~10倍,从而提高了煤气向炉缸中心的渗透能力,高炉中心温度升高,煤气流向中心发展。
a. For each 100 kg / t iron pulverized coal injection, the volume of gas in the hearth increases by 4.6% (if the bituminous coal should be still larger) than that in full cokemaking, the total heat in the hearth decreases by 5.3% and the theoretical combustion temperature decreases by 200 ° C. b. The composition of H2 and CO + H2 in the gas of the hearth increases significantly. H2 increases 50m3 / t of iron to make the viscosity of the gas low, and the thermal conductivity is 7 to 10 times higher than that of other gases, thus increasing the gas permeability to the center of the hearth , Blast furnace center temperature, gas flow to the center of development.