钢铁冶炼渣的处理利用难点分析

Difficulty analysis on treatment and utilization of iron and steel smelting slag

为促进熔炼渣的显热回收、降低钢铁冶炼能耗,提高熔炼渣的利用率和经济性,通过分析钢铁厂熔渣的处理和利用难点,提出了熔渣调质及泡沫化处理的干法粒化方法,通过引入金属铁提高熔渣的导热系数、熔渣泡沫化改善粒化效果,为解决干法粒化及熔渣利用面临的难题提供了思路,并对干法粒化的研究方向给出了建议。

In order to promote sensible heat recovery of smelting slag,reduce energy consumption in iron and steel smelting process,and improve utilization rate and economy of smelting slag,by analyzing the difficulties in the treatment and utilization of the molten slag in steel mills,a dry granulation method for molten slag based on the modification and foaming treatment is proposed,and the thermal conductivity as well as granulation of slag are improved by introducing metallic iron and foaming,which provides a way to solve the problems faced by the dry granulation and slag utilization.At last,some suggestions on the future research direction of dry granulation are given.