镁及镁合金生产过程的污染物治理研究.pdfVIP

学兔兔 Dec．2008 ·1304· VoI．57 No．12 t， ^_ ● - -● ^● ^● {铸造与环保 { ■’^ ，’■^，●■ ，-q^ -_^ ●■^，■一 镁及镁合金生产过程的污染物治理研究 赵 伦，刘建睿，黄卫东 (西北工业大学凝固技术国家重点实验室，陕西西安710072) 摘要：从粗镁到精镁以及镁合金的熔炼生产过程，防燃保护及精炼产生大量的废气和固体废渣，不仅污染环境，而且 浪费资源。根据废气和废渣的成分组成及性质，设计了水溶液吸收废气、固体废渣溶解分离处理熔制熔剂工艺，试验 结果表明，该-r_~k可有效减少废气和废渣的排放，达到洁净化生产的目的；讨论了废弃物处理过程的影响因素。 关键词：镁及镁合金；熔炼；废气；废渣；污染治理 中图分类号：TG146．2 文献标识码：A 文章编号：1001—4977(2oo8)12—1304—04 Pollutant Treatment in Production Process of Magnesium and Magnesium Alloys ZHAO Lun，LIU Jian—rui，HUANG Wei—dong (State Key Laboratory of Solidification Processing，Northwestern Polytechnical University， Xi。an 71 0072，Shaanxi，China) Abstract：In the production process of magnesium and magnesium alloys，it is necessary to prevent oxidation and burning．This process produces a lot of exhaust gases and solid residues． which not only pollute the environment，but also waste resources．According to the compositions and properties of the exhaust gases and solid residues，the methods that using water solution to absorb the exhaust gases，and the water to dissolve the solid residues were developed，by which the main composition of the flux used for refining can be reclaimed．The experimentaI results indicate that the technology can effectively reduce the discharge of exhaust gases and solid residues．The production of magnesium and magnesium alloys can achieve the aim of pollution—free． K