摘要
钢渣熔附烧结梯度熟料技术可直接利用粒状钢渣生产水泥熟料,是实现钢渣在水泥工业中大规模利用的重要途径。本文通过工业化试生产,为该技术未来的推广应用起到了示范作用。试生产结果表明:熟料中的矿物相呈由内而外梯度分布。钢渣掺量为熟料质量的5%时,可生产出优质的钢渣梯度熟料,当钢渣掺量继续增加至7.5%时,熟料的早期强度开始下降,但后期强度增长较快,解决了钢渣生产熟料水溶性铬(Ⅵ)含量超标的技术难题,进一步完善配料与工艺,可实现工业化稳定生产。
Steel slag fusion calcined gradient clinker technology can directly utilize granular steel slag to produce cement clinker,which is an important way to realize large-scale utilization of steel slag in cement industry.In this paper,the industrial trial production played a demonstration role for the future popularization and application of this technology.The results showed that the mineral phase distribution in clinker was gradient from inside to outside.When the steel slag content was 5%of the clinker,high quality steel slag gradient clinker could be produced,but when the steel slag content increased to 7.5%,the early strength of the clinker began to decrease,but the late strength increased rapidly.The technical problem that the water-soluble chromium(Ⅵ)content in clinker produced by steel slag exceeds the standard has been solved,and the industrial and stable production can be realized by further improving the batching and technology.
作者
李正旺
李兴
郜祥
赵德强
刘亚军
沈卫国
LI Zhengwang(Guizhou Bohong Industrial Co.LTD.,Liupanshui 553028,Guizhou,China)
出处
《水泥》
CAS
2023年第11期11-15,共5页
Cement
基金
国家自然科学基金面上项目(51972247)
广西重点研发计划(AB18126035)
武汉理工大学自主创新研究基金(2023CG007)。
关键词
钢渣
熔附烧结
梯度熟料
工业化试生产
steel slag
fusion calcined
gradient clinker
industrial trial production
