Practice of reducing return fines ratio in 300 m^2 sinter machine of Kunming Iron & Steel Holding Co. , ltd. sinter plant

By technology reformation and strengthened equipment management, the Kuming Iron & Steel Holding Co. , ltd. sinter plant improved the thickness of sintering material layer, governed the air leakage rate of sintering pallets and reformed tank lorry apron feeder. The blast furnace adopted the techniques of sinter charging which significantly lowered the return rate of sinter, and benefit the sintering industry constantly.