某红土型铝土矿扩大开采范围的研究.PDF

23 2 矿　冶　工　程 Vol.23 №2 2003 04 MINING AND META URGICA ENGINEERING April 2003 ① 吴秀琼 (, 410011) 　: 14 , , 9.35 。, 。, , 。 :;;; Research on Extending Mining Area of a Red-soil Type Bauxite Mine WU Xiu-qiong (Changsha Design and Research Institute of Nonf errous Metallurgy , Changsha 410011, Hunan, China ) Abstract:The originally-designed mining area of Natang field of a certain red-soil type bau ite 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 years.To e tending its washerys service life, its urgent task is to e tend its mining area.According to its optimum model, the mine decided to choose Bulu and Guan areas as its succeeding mining areas.The rationality of e tending its mining areas is analysed economi- cally and technically. Key words:red-soil type;bau ite;mining area;research 1　 2 　 , , 。, , ; , ,, ; 。, , , , 、。 。, 、 ,, 。:、 [1] 9 。 , , , ,,, 、、。 。, 4 65×10 t, ,, , 4 189×10 t,14 ( ;, ,)。、, , , , , 2/3, 。, 1/3。 ,。 。 9.35 。, ,, , , 。、