宏大铁矿露天采场开拓运输优化研究与设计

Optimal Research and Design of Development Haulage in Open Mining of Hongda Iron Mine

结合宏大铁矿生产实际情况,深入分析研究和对比矿山各种开拓运输方式特点,依次解决了宏大铁矿开拓运输方案优化的4个核心问题。通过全汽车和半连续2种开拓运输方案的论证比较,选定合理的开拓运输系统;通过全移动、可移式、半固定、定固等4种破碎站形式的论证对比,选定合理的破碎站形式;通过运输成本数值的回归分析,采用图解法找到半连续运输和全汽车运输的界限点;通过建立线性模型,用数学定量求最优解法,找到破碎站经济合理移设步距。最后为矿山推荐一套经济合理的半连续(汽车—可移式破碎—胶带机)运输系统,可以大量节省生产运输成本,对提高企业经济效益具有现实意义。

Different forms of development haulage in mines were investigated considering the production situation of Hongda Iron Mine,and four key issues in optimal design of development haulage were solved. Proper development haulage was firstly selected by comparison with truck and semi-continuous haulage. Secondly,reasonable crushing station was chosen by comparing four kinds of stations which are full movable,movable,semi-fixed and fixed respectively. Subsequently threshold point between truck and semi-continuous haulage was decided by using graphic method and through regression analysis of haulage costs. The moving step distance of crushing station was found by obtaining the optimal solution with quantitative solution and linear model. At last,a set of cost-effective semi-continuous haulage system composed of truck,movable crushing and belt conveyor was recommended to save haulage cost. It plays a significant role in increasing economic efficiency for the mine.