Characteristics and Control Technology of Fine Particulate Matter (PM) in Iron Ore Sintering

Iron ore sintering is an essential process in modern iron and steel production. It has the largest emission of the PM (particulate matter) in the iron and steel industry, accounting for about 40% of the total emission. The physical and chemical properties of PM 10 and PM 2.5 in the iron ore sintering were introduced, and the research development of PM emission reduction was also summarized. The potential future development of PM emission reduction by chemical agglomeration and capture in the iron ore sintering process was also carried out. The interface chemistry relationships between PM and polymer, such as sodium carboxy methyl cellulose (CMC) and polyacrylamide (PAM), in agglomerates were also investi- gated in this paper. It is signi ficant to reveal the characteristics of PM and develop the emission reduction technology of PM for the cleaner production of iron ore sintering.