钢渣改性研究进展及展望

RESEARCH PROGRESS AND PROSPECT OF STEEL SLAG MODIFICATION

我国钢渣产生量巨大,随着日益严格的环保要求,为使钢渣达到资源化利用的目的,钢渣改性成为需要迫切解决的工作。简述了我国钢铁行业产生的钢渣的组成特点、资源化利用存在的问题;重点综述了钢渣改性的研究进展。结合现存钢渣改性工艺的特点,指出热态钢渣碳酸化改性,不仅可以充分利用钢渣本身的巨大热能,实现钢厂内CO2减排,还能够实现钢渣稳定性和胶凝性能的改善,是今后钢渣改性研究的重要方向。

Steel slag production quantity is huge in China.With the increasingly strict environmental protection requirements in China,the modification of steel slag to make steel slag resource utilization becomes an urgent task.This paper briefly described the characteristics of the steel slag and the problems of resource utilization.The research progress of steel slag modification was reviewed.Combined with the characteristics of the existing steel slag modification process,the paper pointed out that the hot steel slag carbonation modification could not only make full use of the huge thermal energy of the steel slag itself,but also achieve the reduction of CO2 emission in steel plant,and realize the improvement of steel slag stability and gelation performance.Therefore,the process was also the development direction of steel slag modification in the future.