煤基固废物综合利用研究进展

Study on progress in comprehensive utilization of coal based solid waste

煤基固废物是煤炭开采、利用过程中产生的一类难以利用的工业固体废弃物,主要包括煤矸石、粉煤灰渣、煤气化渣。煤基固废物的大量堆积,不仅占用土地面积,同时对大气、水体和土壤等周围环境造成污染。如对其处理得当,又可以变废为宝,成为一种可以再利用的资源。本文阐述了3种主要煤基固废物的理化性质,介绍了煤基固废物在填充处理、热量回收、化工和环保领域中的应用,并针对煤基固废的综合利用提出了建议。

Coal-based solid waste is a kind of difficult to use industrial solid waste produced in the process of coal mining and utilization,mainly including coal gangue,fly ash slag,coal gasification slag.The large accumulation of coal-based solid waste not only occupies land area,but also causes pollution to the surrounding environment such as atmosphere,water bodies and soil.Such as its proper treatment,and can turn waste into treasure,become a kind of reusable resources.In this paper,the physical and chemical properties of three main types of coal-based solid wastes were described,the applications of coal-based solid wastes in filling treatment,heat recovery,chemical industry and environmental protection were introduced,and suggestions were made for the comprehensive utilization of coal-based solid wastes.