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金属矿山 ›› 2007, Vol. 37 ›› Issue (09): 28-31.

• 采矿工程 • 上一篇    下一篇

大冶铁矿放矿截止品位动态优化研究

谭玉叶1,宋卫东1,匡忠祥2,尹小鹏2   

  1. 1.北京科技大学;2.武汉钢铁集团矿业有限责任公司
  • 出版日期:2007-09-17 发布日期:2012-03-01
  • 基金资助:

    * 教育部新世纪优秀人才支持计划资助项目(编号:NCET-04-0102)。

Dynamic Optimization of Drawing Cut-Off Grade in Daye Iron Mine

Tan Yuye1,Song Weidong1,Kuang Zhongxiang2,Yin Xiaopeng2   

  1. 1.University of Science and Technology Beijing;2.Mining Co., Ltd of Wuhan Iron and Steel Group
  • Online:2007-09-17 Published:2012-03-01

摘要: 根据放矿截止品位的优化涉及到整个矿山系统的特点,采用动态系统的研究方法,首先建立了大冶铁矿各动态联系参数间的数学模型,其次建立综合技术经济模型,把技术参数与经济参数密切地结合起来,再利用What If功能进行成百上千个不同方案的对比分析,以计算出各方案的各决策目标值,最后两次应用多目标模糊综合评判法进行优化决策。优化后方案可实现3 a总利润、总现值和精矿产量分别增加2 596.82万元、2 394.36万元和15.68万t。

关键词: 截止品位, 数学模型, 动态优化, 多目标模糊综合评判法

Abstract: In view that the optimization of the cut-off grade in ore drawing involves the whole mine system, a dynamic system study method is adopted. First, a mathematical model for all the dynamic link parameters of Daye Iron Mine is established, followed by establishing a comprehensive tech-economic model closely combining the technical parameters with economical ones. Secondly, What If function was used to make comparative analysis of thousands and hundreds of schemes and the policy-decision target values of all schemes are calculated. Finally, optimization decision-making is made by using twice multi-objective fuzzy comprehensive evaluation method. The optimized scheme can improve the three-year  total profit, present value and concentrate output by 25.9682 M yuan, 23.9436 M yuan and 0.1568 M t respectively.

Key words: Cut-off grade, Mathematical model, Dynamic optimization, Multi-objective fuzzy comprehensive evaluation method