某红土型铝土矿扩大开采范围的研究

Research on Extending Mining Area of a Red-soil Type Bauxite Mine

某红土型铝土矿一期工程那塘矿段原设计开采范围的生产服务年限为 1 4年 ,由于矿量的负变和产量的增加 ,实际服务年限仅为 9.35年。为延长现有洗矿厂的服务年限 ,扩大开采范围是企业的当务之急。通过建立优化模型 ,确定把开采范围扩大到与那塘矿段相邻的布禄和古案两矿段 。

The originally-designed mining area of Natang field of a certai n red-soil type bauxite mine has a service life of 14 years. With decreasing of ore reserves and increasing of output, its actual service life is only 9.35 yea rs. To extending its washery's service life, its urgent task is to extend its mining area. According to its optimum model, the mine decided to choose Bulu and Gu'an areas as its succeeding mining areas. The rationality of extending its mi ning areas is analysed economically and technically.