矿产综合利用2024，Vol.45Issue(6)：79-86,8.DOI:10.3969/j.issn.1000-6532.2024.06.013
烧结处置含铬污泥实验
Experimental Study on Disposal of Chromium-containing Sludge by Sintering
宋世哲 1刘忠成 2刘沛江 3侯洪宇 1钱峰 1于淑娟1
作者信息
- 1. 海洋装备用金属材料及其应用国家重点实验室,辽宁 鞍山 114009||鞍钢股份有限公司技术中心,辽宁 鞍山 114009
- 2. 鞍钢股份有限公司鲅鱼圈钢铁分公司,辽宁 营口 115007
- 3. 鞍钢股份有限公司炼铁总厂,辽宁 鞍山 114021
- 折叠
摘要
Abstract
This is an article in the field of metallurgical engineering.The chromium-containing sludge produced by iron and steel enterprises in the process of steel plate coating is a hazardous waste.It contains a certain amount of iron and calcium oxide,which can be used as a resource through the sintering process.In this paper,chromium-containing sludge was taken as the research object.The application and influence of chromium-containing sludge in sintering were investigated by sintering cup test,and the distribution of chromium element after sintering was studied.The results of sintering pot tests showed that the scheme was feasible.The addition of chromium-containing sludge could promote the formation of complex calcium ferrite phase and improve the performance of sinter.When the ratio of chromium-containing sludge in sintering mixture was less than 2.5%,the yield and utilization coefficient of sinter increased,the drum index also increased,and the return rate and average particle size decreased.During the sintering process,chromium was rarely diffused,and 84～90%,9%～14%and less than 1%would be fixed in the sinter,return ore,and into the smoke dust,respectively.Overall,the sintering process synergistic treatment of chromium-containing sludge would not produce secondary pollution,which had promising application as an environmental protection strategy for iron and steel enterprises.关键词
冶金工程/含铬污泥/烧结/资源化利用/环境保护Key words
Metallurgical engineering/Chromium-containing sludge/Sintering/Resource utilization/Environmental protection分类
矿业与冶金引用本文复制引用
宋世哲,刘忠成,刘沛江,侯洪宇,钱峰,于淑娟..烧结处置含铬污泥实验[J].矿产综合利用,2024,45(6):79-86,8.
