摘要:钢铁行业排放的废物种类繁多，例如：高炉渣、钢渣、含铁尘泥等。据有关专家介绍，目前我国高炉渣的年产生量在1亿吨以上，利用率一般在65%~85%左右，钢渣的年产量在6500万吨左右，平均利用率仅为26%。截止2006年，我国钢渣已超过了1亿吨的积存量。多种废渣的堆积、丢弃不仅占用大量的土地资源，而且还严重污染环境，对人类造成居住环境的恶劣影响。为了提高废渣的利用率和再利用价值，近年来国内外的生产企业十分注重废渣再利用技术的研究，积极探索利用量大、附加值高的废渣利用新途径以促进经济社会与环境协调发展。
本课题通过对冶金固体废弃物和燃煤固硫剂的种类、性质的介绍，表明将冶金固体废弃物处理利用是有必要的。所以本文对煤燃烧过程中传统的钙基固硫剂性质及脱硫过程机理进行综合分析，提出一种新型的含有冶金渣的燃煤固硫剂。研究结果表明，冶金渣是可以成为燃煤过程中经济而有效的固硫剂。
关键词 冶金渣 燃煤 固硫 可行性
ABSTRACT:Blast furnace slag, steel slag is waste iron and steel industry. According to experts, the current blast furnace slag in China annual yield at 1 tons, the utilization rate of steel slag is about 70%~85%, the annual production of about 57000000 tons, the average utilization rate was only 25%. As of 2006, the accumulated amount of our country has more than 1 tonnes of steel slag. Accumulation of two kinds of waste not only take up a lot of land resources, but also pollute the environment seriously. In order to improve the utilization of waste and recycling value, in recent years, domestic production enterprises paid great attention to waste recycling technology research, and actively explore the use of a large quantity, high added value of the residue with new ways to promote the coordinated development of economy, society and environment.
In this paper, by type of metallurgical solid wastes and coal sulphur-fixing agent in nature, shows that the metallurgical solid waste treatment and utilization is necessary. Therefore this paper on the mechanism of calcium based traditional sulfur fixation agent properties and desulfurization process in coal combustion process analysis, puts forward a kind of new metallurgical slag containing sulfur agent. The results show that, the metallurgical slag can be economically and effectively during coal combustion sulfur fixing agent.
Keyword：Metallurgical slag ；fire coal；The solid sulfur；practicability
