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现代矿业 ›› 2017, Vol. 33 ›› Issue (11): 91-94.

• 采矿工程 • 上一篇    下一篇

面向市场行情的某矿山采选设计方案优化

王仁臻   

  1. 五矿矿业(安徽)工程设计有限公司
  • 出版日期:2017-11-25 发布日期:2018-03-01

Optimization on the Design Scheme of Mining and Ore Dressing of a Mine by Considering the Market Price of Iron Ore

Wang Renzhen   

  1. Minmetals Mining (Anhui) Engineering Design Co.,Ltd.
  • Online:2017-11-25 Published:2018-03-01

摘要: 近年来,国际铁矿石市场行情波动较大,矿山经济效益受到了较大影响,相当一部分矿山面临停产和关闭。在当前市场行情下,可根据矿山不同矿体的赋存情况及开采技术条件,对采选设计方案进行适当优化,以改善主要经济技术指标,降低矿山生产成本,取得更好的经济效益。以地处我国东北地区的某矿山为例,详细分析了原采选设计方案,经济技术评价表明该方案净现值为负,方案不可行。在此基础上,根据该矿矿体赋存特征,通过变更矿山开采范围及矿山设计生产规模,调整相应的系统工程对原采选设计方案进行了优化。方案优化后的生产规模较原设计规模小,相应的开拓系统配套规模也有所减小,减少了矿山基建工程量和前期投资,使得相应的技术经济指标得到了大幅改善,可供类似矿山参考。

关键词:  采选设计方案,  技术经济指标,  方案净现值,  生产成本

Abstract: In recent years,the international market price of iron ore drops large,the economic benefits of iron mines in our country are influenced seriously,quite a number mines are shut down or closed.Under the current market conditions,the original design scheme of mining and ore dressing can be optimized to some extent based on the the distribution conditions of the ore-bodies and mining technical conditions of different mines,so as to improve the main economic and technical indicators,reduce the mine production costs and obtain the better economic benefits.Taking a mine located in the northwestern of our country as the study example,the existing design scheme of mining and ore-dressing of the mine is analyzed in detail,the economic and technical evaluation results of the scheme show that the net present value of the scheme is negative,which indicated that the scheme is not feasible.Based on the above analysis results,according to the ore-body distribution characteristics,the existing design scheme of mining and ore-dressing of the mine is optimized by changing mining scope and design production scale,adjusting some related system engineering.The mine production scale and mine development scale of the optimization scheme are smaller than the ones of the original scheme,besides that,the mine infrastructure engineering and early stage investment are both reduced,therefore,some relative economic and technical indicators are improved significantly.The study results related to the optimization on the mine design scheme of mining and ore dressing can provide some reliable reference for the similar mines.

Key words: Design scheme of mining and ore dressing, Economic and technical indicator, Net present value of scheme, Production cost