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粗铅冶炼过程铅元素流分析

钟琴道 乔 琦 李艳萍 白 璐 万 斯

钟琴道, 乔 琦, 李艳萍, 白 璐, 万 斯. 粗铅冶炼过程铅元素流分析[J]. 环境科学研究, 2014, 27(12): 1549-1555.
引用本文: 钟琴道, 乔 琦, 李艳萍, 白 璐, 万 斯. 粗铅冶炼过程铅元素流分析[J]. 环境科学研究, 2014, 27(12): 1549-1555.
ZHONG Qin-dao, QIAO Qi, LI Yan-ping, BAI Lu, WAN Si. Lead Flow Analysis of Lead Bullion Smelting Process[J]. Research of Environmental Sciences, 2014, 27(12): 1549-1555.
Citation: ZHONG Qin-dao, QIAO Qi, LI Yan-ping, BAI Lu, WAN Si. Lead Flow Analysis of Lead Bullion Smelting Process[J]. Research of Environmental Sciences, 2014, 27(12): 1549-1555.

粗铅冶炼过程铅元素流分析

基金项目: 国家环境保护公益性行业科研专项(201009037,201209014,201209009-3)

Lead Flow Analysis of Lead Bullion Smelting Process

  • 摘要: 针对粗铅冶炼生产过程中铅金属环境污染问题,应用元素流分析方法,建立了粗铅冶炼过程铅元素流分析框架. 以液态高铅渣直接还原工艺为研究对象,通过监测和分析配料、底吹炉、还原炉、烟化炉等工序含铅样品数据及企业台账数据,对生产过程中铅元素流进行全过程识别和追踪分析. 结果表明:粗铅冶炼系统铅元素平衡系数为98.61%,铅回收率为98.28%,但铅直收率仅为74.39%,与国内外先进水平相比,还有一定提升空间;单位粗铅产品烟尘、铅尘产生量分别为0.636和0.308 t/t;排放量最大的烟囱是还原炉-烟化炉烟囱,其次为岗位环保烟囱和底吹炉制酸烟囱,三者排放量分别占废气铅排放量的69.06%、25.81%、5.13%. 针对粗铅冶炼生产过程中存在的问题,提出了优先提高铅直收率、降低烟尘率、减少无组织粉尘散逸、采用高效脱硫除尘协同防治技术等建议.

     

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出版历程
  • 收稿日期:  2014-01-05
  • 修回日期:  2014-05-23
  • 刊出日期:  2014-12-25

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