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中南大学学报(自然科学版)

Journal of Central South University

第27卷    第6期    总第112期    1996年12月

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文章编号:(1996)06-676-4
QSL炼铅过程的热力学分析
谭鹏夫; 张传福; 张瑞瑛

(中南工业大学有色冶金系;长沙;410083)

摘 要: 根据已提出的直接炼铅过程的计算机模型,分析了QSL炼铅法在工业上得不到弃渣而失败的根本原因,同时对精矿成分、熔炼温度、重油量和风量等操作条件进行了模拟,发现提高温度不能得到弃渣,而还原性的气氛却可极大地降低炉渣中铅含量,从而提出降低渣含铅的具体改进措施与方案,为在实际生产中解决这一问题提供可靠的依据.

 

关键字: 热力学; 计算机模拟; 铅

THE THERMODYNAMIC ANALYSIS OF QSL LEAD SMELTING PROCESS
Tan Pengfu;Zhang Chuanfu;Zhang Ruiying

Department of Nonferrous Metallurgy, Central South University of Technology, Changsha, 410083, China

Abstract:By using computer-aided techniques of equilibrium calculations for multi-component and multiphase systems, a computer model has been developed to simulate the process of direct lead smelting process. The amount of each component in lead, matte, slag and gaseous phases under equilibrium is calculated by using the data of free energies of formation and activity coefficients. The predictions by the present computer model are compared with the known data. The agreements between the computer predictions and the known data are excellent,so that the present computer model can be used to monitor and optimize the actual industrial operations of direct lead smelting. The distribution behaviors of Pb, Cu, S, O, SiO2 in direct lead smelting are basically dependent on the process factors such as temperature, volumes of air, the content of the elements in charge and oil.

 

Key words: thermodynamics; computerized simulations; lead

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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