Production Practice of Improving the Quality Sinter from No.3 Sintering Machine in Qingdao Steel
YANG Xiaojian
AN Xiuwei
Abstract：In No.3 sintering machine system of Qingdao steel, due to existing the unreasonable control air and coal gas ratio, heat exchanger is easily damaged, gas heat exchanger easily blocked, poor quality of gas, wind wall design is not reasonable, that caused low ignition temperature and lower bed thickness, and the problem of unstable mixture moisture. The corresponding measures are taken to improve the ignition temperature and bed thickness, reduce mixture moisture fluctuations, improve the fabric process, after improved, it obviously improved the output and quality of sinter, the sintering return fine rate is reduced by 9%, the sinter strength is increased by 5%, the utilization coefficient is increased by 3%, the cost of per ton of ore is reduced by 14 Yuan.
Keywords：sinterignition temperaturebed thicknessreturn fine rate
Publication Date：2015-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：3( 26-28 )