摘要
介绍了水泥窑协同处置无机污泥的工艺流程,研究了无机污泥投加比例对水泥生产能耗、烟气排放、产品质量的影响。实践表明,无机污泥按2%掺合量参与生料配比,可替代部分高硅砂岩和粘土,窑尾高温风机电耗上升0.01kW·h/t,窑尾尾排风机电耗上升0.09kW·h/t,烟气中特征污染物排放量无显著增加,水泥产品质量满足相关标准要求。无机污泥煅烧后的残留物可作为水泥组分,固熔在水泥熟料中。
This paper introduces the technological process of collaborative sludge disposal in cement kiln,and studies the dosage ratio of inorganic sludge and its influence on cement production energy consumption,flue gas emission and product quality.The practice shows that inorganic sludge can replace some high silica sandstone and clay by participating in the raw meal ratio according to the mixing amount of 2%.The power consumption of high-temperature fan at the kiln tail increases by 0.01kW·h/t,the power consumption of exhaust fan at the kiln preheater increases by 0.09kW·h/t,the emission of characteristic pollutants in flue gas does not increase significantly,and the chemical composition and product quality of cement clinker meet the requirements of relevant standards.The residue of inorganic sludge after calcination can be used as cement component and melted in cement clinker.
作者
赵玉刚
朱海宾
赵叡清
ZHAO Yugang;ZHU Haibin;ZHAO Ruiqing(Qianyang Haichuang Environmental Protection Technology Co.,Ltd.,Baoji Shaanxi 721100,China)
出处
《水泥技术》
2022年第3期57-63,共7页
Cement Technology
关键词
水泥窑
协同处置
烟气排放
无机污泥
cement kiln
collaborative disposal
flue gas emission
inorganic sludge
