矿产资源概略研究、预可行性研究、可行性研究区别探讨

The differences study of scoping study,pre-feasibility study,feasibility study on mineral resources

矿产资源在进行勘查、开发过程中,为保证矿业项目的合理运行,需要进行技术经济可行性评价,可行性评价分为概略研究、预可行性研究和可行性研究三个阶段,三个阶段研究深度不断加深。概略研究侧重于机会研究,各类参数通常以同类型相似矿山类比得出,其经济评价以静态评价为主,误差范围通常为±50%左右;预可行性研究侧重于可操作性研究,各类参数是在初步试验基础上结合矿山假定的生产建设方案设定的,经济评价是基于矿山周期内年均产量、单位成本花费和总的数量进行评价,估算误差通常在30%以内;可行性研究侧重于项目实际生产经营时的盈利性研究,各类估算参数是模拟实际生产运营条件下得出的,经济评价为详细的动态评价,并进行相应敏感性分析,具有很强的时效性,估算误差通常在±15%以内。

In order to ensure the mining projects'rationality,it is necessary to evaluate the technical and economic feasibility of mineral projects during the process of exploration and development.The feasibility evaluation is divided into three stages:scoping study,pre-feasibility study and feasibility study,and the research depth of the three stages gradually deepened.Scoping study focuses on opportunity study,its parameters are obtained by analogy with similar mines.Scoping study usually use static evaluation method to evaluate the economic value,and the error range is±50%.Pre-feasibility study focuses on the operability of the project.Pre-feasibility study's parameters are obtained by preliminary tests and hypothetical production scenario.Pre-feasibility study is accurated within 30%,and based on known unit costs and estimated gross quantities.The feasibility study focuses on the profitability of the project.Feasibility study's parameters are obtained by simulating the condition of actual production operation.Feasibility study is usually evaluated by the method of detailed dynamic evaluation and it has a strong timeliness.Feasibility study's error range is within±15%.