中间物料回炉处理最佳方式探索
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摘要
铜冶炼厂工序复杂,产出的中间物料多是有害元素富集、反应性能较差的在制品,例如黑铜泥、铜砷滤饼、渣包壳等,部分中间物料涉及危险化学品管理,且由于环保要求越来越高,对外处置成本逐步上升,并且对外处置会形成多种微量有价元素流失。从提高铜及微量有价元素回收率,提高企业生产效益角度出发,要求尽可能实现中间物料回炉处理,本文主要介绍了黑铜泥、渣包壳、铜砷滤饼回闪速炉处理所遇到的困难和相应的解决方案。
The copper smelting process is complicated with yield of intermediate material mostly featuring enriched with harmful elements and lower reaction performance, such as black copper slime, copper and arsenic cake, slag ladle skull, etc. Some intermediate material even involves hazardous chemical management. Due to increasingly stringent requirements of environmental protection and increasing external disposal cost, the external disposal will result in loss of a variety of trace valuable elements. Thus, it is required to return to the flash furnace for intermediate material treatment for improving recovery of copper and trace valuable element as well as the economic benefit of copper smelters. This paper mainly introduces the challenges and counter-measures for treatment of black copper slime, slag ladle skull, copper and arsenic cake returning to flash furnace.
The copper smelting process is complicated with yield of intermediate material mostly featuring enriched with harmful elements and lower reaction performance, such as black copper slime, copper and arsenic cake, slag ladle skull, etc. Some intermediate material even involves hazardous chemical management. Due to increasingly stringent requirements of environmental protection and increasing external disposal cost, the external disposal will result in loss of a variety of trace valuable elements. Thus, it is required to return to the flash furnace for intermediate material treatment for improving recovery of copper and trace valuable element as well as the economic benefit of copper smelters. This paper mainly introduces the challenges and counter-measures for treatment of black copper slime, slag ladle skull, copper and arsenic cake returning to flash furnace.
引文
[1]刘永平.黑铜泥氧压酸浸工艺研究[J].有色金属:冶炼部分,2015(12):13-16.
[2]王玉棉,刘启武,冯福山,等.黑铜泥碱性浸出工艺及机理探讨[J].兰州理工大学学报,2011,37(2):5-8.
[3]杜鹃,李媛媛,张广积,等.铜砷滤饼废渣的生物浸出[J].过程工程学报,2014, 14(3):15-20.
[4]官样昌.贫化电炉低空污染的治理[J].铜业工程,2013(6):23-25.
[5]代献仁,刘军,张贤策.转炉渣中有价元素回收试验[J].现代矿业.2016(7):101-103.
[6]熊果,黄毅,杨巍.转炉淹理化性质测定及应用分析[J].金属材料与冶金工程,2016(1):51-55.
(1)200目=0.074 mm
[2]王玉棉,刘启武,冯福山,等.黑铜泥碱性浸出工艺及机理探讨[J].兰州理工大学学报,2011,37(2):5-8.
[3]杜鹃,李媛媛,张广积,等.铜砷滤饼废渣的生物浸出[J].过程工程学报,2014, 14(3):15-20.
[4]官样昌.贫化电炉低空污染的治理[J].铜业工程,2013(6):23-25.
[5]代献仁,刘军,张贤策.转炉渣中有价元素回收试验[J].现代矿业.2016(7):101-103.
[6]熊果,黄毅,杨巍.转炉淹理化性质测定及应用分析[J].金属材料与冶金工程,2016(1):51-55.
(1)200目=0.074 mm