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金属矿山 ›› 2018, Vol. 47 ›› Issue (11): 13-17.

• 采矿工程 • 上一篇    下一篇

露天矿生产规模优化的经济动态评估方法

章林1,2,代碧波1,2,3,王运敏1,2, 牟英杰4   

  1. 1. 中钢集团马鞍山矿山研究院有限公司,安徽 马鞍山,243004;2. 金属矿山安全与健康国家重点实验室,安徽 马鞍山,243004;3. 东北大学资源与土木工程学院,辽宁 沈阳,110819;4. 包钢集团矿山研究院,内蒙古 包头,014010
  • 出版日期:2018-11-15 发布日期:2018-12-19
  • 基金资助:

    * “十三五”国家重点研发计划项目(编号:2017YFC0602905)。

Study on Economic Dynamic Assessment Optimization Technology of Production Capacity Open-pit Mine:A Case Study of Dongjielegele Iron Mine in Baiyunebo

Zhang Lin1,2,Dai Bibo1,2,3,Wang Yunming3, Mu Yingjie5   

  1. 1. SINO Steel Maanshan Institute of Mining Research Co.,Ltd, Maanshan 243004, China;2. State Key Laboratory of Safety and Health for Metal Mines, Maanshan 243004, China;3. Huawei National Engineering Techincal Research Center of High Efficient Recylic Utilizaiton for Metal Minerals Co.,Ltd, Maanshan 243004, China;4. BT Steel Institute of Mining Research ,Baotou 014010, China
  • Online:2018-11-15 Published:2018-12-19

摘要: 为实现经济动态评估、采剥总量均衡的露天矿生产规模优化,将露天境界优化与生产规模相结合,建立矿床地质数据库、矿床三维地质实体模型和块段品位模型,综合考虑矿床品位分布不均、资金时间及矿石价格的可变性等因素对境界优化和生产规模的影响,借助境界动态优化分析软件Whittle的Milawa算法,快速生成高质量批量的露天境界,并计算出不同境界方案下的矿山动态经济指标,选择出最优境界,模拟矿山经济运营情况,从技术经济角度优化出矿山生产规模和采剥顺序;在项目依托矿山包钢白云鄂博东介勒格勒铁矿的应用结果表明:该矿山最优生产规模为130万t/a,但在当前的市场环境下,投资收益率为7.58%,矿山开采经济风险很大。为矿山企业的决策提供了科学依据。

关键词: 露天开采, 境界优化, 生产规模优化, Whittle软件, Milawa算法

Abstract: To perform the production scale optimization for open pit mine based on economic dynamic assessment and total balance of overall output of ore and waste, the optimization of opencast boundary is combined with the production scale to build the geological database, 3D geological entity model and block grade model of the deposit. Factors such as uneven distribution of ore grade, time of capital arriving and variability of ore prices impacting on the pit boundary optimization and the production scale are comprehensively considered. With the aid of Milawa algorithm of Whittle, that is the dynamic optimization analysis software, the open-pit boundary with high quality and quantity is quickly generated, and the dynamic economic indexes of mines under different boundary are calculated, with the optimal boundary determined. Through simulating the economic operation of mines, the production scale and the mining and stripping sequence of mines are optimized from the technical and economic views. Relying on the application in the Dongjielegele Iron Mine of Baotou Baiyun Obo, the project indicates that the optimal production scale of the mine is 1.3 million t/a. However, under the current market environment, the investment return rate is 7.6%, with high economic risk of mining. It provides a scientific basis for decision-making of mining enterprises.

Key words: Open pit, Pit optimization, Production scale optimization, Whittle software, Milawa algorithm