Research of Lime-mediated Sewage Sludge Use as Metallurgy Sintering Ingredients in the Sinter Industry
This paper discusses the feasibility of the lime-mediated sewage sludge replace the fuels and flux as metallurgy ingredients,the influence of lime-mediated sewage sludge used in metallurgy sintering process to the sinter performance.The calorific value of the sludge was 4.67MJ/kg.The X-ray diffraction (XRD) showed that the main existing form of Calcium in the lime-mediated sewage sludge is CaCO3 at 550℃,and almost is CaO at 1100℃.This provided the basis to the sludge used as sintering ingredients.Sintering cup experiment results showed that Lime dry sludge have a positive impact on sintering,the sinter quality indexes are improved.When sludge ratio is 3.00%,the vertical sintering burning rate is 21.28mm/min,the yield is 72.62%,the utilization coefficient is 1.455T/m2·h,fuel consumption from 65.65kg/T fall to 59.16kg/T,then concluded that the flux and fuel ratio replaced by lime-mediated sewage sludge were 43.3%,13.3% respectively.
lime-mediated sewage sludge sinter performance index flux fuel
Xing Yi Zhao Fan Hong Chen Yu Guangwei Yue Chengsheng Si Yanxiao
School of Civil and Environmental Engineering, University of science and Technology Beijing, Beijing Shougang Environment Protection Department, Beijing 100041, China
国际会议
昆明
英文
888-894
2012-10-12（万方平台首次上网日期，不代表论文的发表时间）