BASIC CHARACTERISTICS AND APPLICATION OF IRON CONTAINING DUST FROM STEEL PLANTS
Through the analysis of the composition,output,particle size,morphology and other characteristics of various iron-containing dust generated during sintering,coking,iron-making,steel-making,steel rolling and other processes,the comprehensive application of sintering dust and steel-making dust in the internal self-circulation of steel plants is introduced.The yield of long-process steel-making dust is 70～90 kg/t steel,of which the dust yields from sintering,coking,blast furnace and steel-making processes account for 36.3％,7.1％,32.4％ and 24.2％ respectively.The cold-solid pressure ball of dust is used as a substitute for return ore in the converter as a coolant and slagging material.The early slagging and slagging effects are good,and the use of 1 kg/t cold-solid pressure ball can reduce the steel material in the converter by 0.3～0.5 kg/t.However,as the amount of cold-solid pressure ball increases,the dephosphorization ability of converter slag significantly decreases.
Long processDustChemical compositionDistributionMorphology
万方数据
维普
