北京科技大学学报2013，Vol.35Issue(2)：148-154,7.
石灰干化污泥作为配料部分替代冶金烧结中熔剂和燃料
Lime-mediated sewage sludge partly replacing fluxes and fuels as metallurgy sintering ingredients
摘要
Abstract
Lime-mediated sewage sludge was used in metallurgy sintering. Its impact on the sinter performance was discussed when partly replacing fuels and fluxes as a metallurgy ingredient. Thermogravimetry-differential thermal analysis (TG-DTA) and X-ray diffraction analysis (XRD) show that in the process of room temperature to 1100 ℃, organic matter in the sludge decomposes to generate heat, meanwhile CaCO3 and Ca(OH)2 turn into CaO. Sintering cup experiment results indicate that the sludge has a positive impact on sintering with appropriate carbon quantities and the sinter quality index is improved. When the sludge ratio is 3.00% and the ratios of replacing the flux and fuel with the sludge are 51% and 13.3% respectively, the vertical burning rate of sintering is 21.30 mm·min-1, the yield is 72.63%, the utilization coefficient is L458 t·m-2·h-1, and the fuel consumption per ton falls to 59.27 kg from 65.54 kg.关键词
废弃物利用/烧结/污泥/石灰/熔剂/燃料Key words
waste utilization/ sintering/ sewage sludge/ lime/ fluxes/ fuels分类
资源环境引用本文复制引用
邢奕,洪晨,张坤,赵凡,余广炜,岳昌盛,司艳晓..石灰干化污泥作为配料部分替代冶金烧结中熔剂和燃料[J].北京科技大学学报,2013,35(2):148-154,7.基金项目
国家自然科学基金资助项目(51104009) （51104009）
北京市科技新星计划资助项目(Z111106054511043) （Z111106054511043）
