Pine Foot Tin Marginal Economic Grade Technical And Economic Research

China's rich mineral resources although one of the countries in the world, but per capita resources are relatively small, particularly with the new China for nearly 60 large mining and prospecting deposit ratio serious imbalance in resources maintain a serious shortage of reserves, quality of resources The poor have begun to walk, how economic conditions in the industrial scale mining on the pendulum in front of us, so this study will focus on the extent to which the grade of ore is an economic value of the mineral resources of the centre, taking full account of mining Elected capacity, mining costs, ore and rock storage section, minerals market price changes, an academic study on the feasibility studies and practice, research and production as one solution.Chapter 1, mainly from national resources exploitation of the status mining, the beginning of the crisis of resources for analysis, the use of mining by the marginal economic value point of view of economic theory grade; retrieval domestic and foreign scholars academic papers to the marginal economic grade or its related research the status mining, marginal analysis of the impact of economic grade ; Deployment of content and formulation of technical routes. Chapter II, mainly through the management mode of modern mining, financial operations, business, and many other in-depth analysis, the use of man-made reference to previous successful adjustment parameters of enterprise production and management theory, the proof of this study the feasibility of marginal economic grade. Chapter 3 is mainly through general-mining Xuanye production capacity constraints of each other, established under the constraints of the mathematical model in conjunction with the Yunnan Tin Company pines feet tin their own point of view, is an independent production and operation of the individual, there is no election Ye features, the establishment of their independent nature of the exploitation of marginal economic grade ore mine mathematical model for the ore-mining for polymetallic sulfide deposit, for which specialized in this chapter summing up by the Associated Mine converted into a single unit price of the metal formula . Chapter IV of the main Yunnan Tin Mine-depleted ore occurrence of the value of regional estimates, and the current-owned mining region of the poor to the total value of the ore mining assessment, the use of linear programming optimization theory with mine , Proposed the organization of production programmes. Chapter V of the research work carried out to sum up, and made in the course of the implementation of the relevant recommendations.