60kA自焙电解槽清洁生产工艺改造及排污能耗对比  

Study on the Technological Reconstruction to Cleaner Production of 60kA Al Cell of Self-bake and the Contrast of Discharging Pollution and the Energy Cost

作　　者：徐新年[1] 汪翰[2] 陈敬员[1] 黄芳[1] 

机构地区：[1]黄石市环境保护研究所,黄石435000 [2]黄石高等专科学校,黄石435000

出　　处：《安全与环境工程》2004年第3期11-13,21,共4页Safety and Environmental Engineering

摘　　要：提出了利用现有的 6 0kA自焙电解槽改建成 75kA预焙电解槽清洁生产工艺方案 ,并将改建前后产品产量、排污、能耗进行对比。结果表明 ,改建方案可操作性强 ,原铝产量提高 2 9.4 % ,主要污染物削减 78.6 % ,厂界环境空气氟化物浓度由改建前的 36 .4 μg/m3 降至 2 .8μg/m3 ,年节电 18 7GW·h。This paper discusses the technological plan to cleaner production of 75kA aluminum cell of pre-bake which is reconstructed from the present 60kA aluminum cell of self-bake.The output of production, discharging pollution and the energy cost are contrasted before and after the reconstruction.The results indicate that the plan to reconstruction is certain of success: the output of original aluminum is raised by 29.4%, main pollutional matters are cut down by 78.6%, the fluoride concentration in environmental air of works boundary is dropped from 36.4μg/m 3 to 2.8μg/m 3, and the electricity is yearly saved by 18.7GW·h.Therefore,the technological plan to cleaner production is not only suited to our national conditions but also produces remarkable economic,environmental and social benefit,for it raises the output, improves the environmental quality and saves the energy.

关 键 词：自焙电解槽 清洁生产 排污 能耗 对比 

分 类 号：X505[环境科学与工程—环境工程] X511