| At present,the price of mineral products is very low,the difficulty of the survival of mining enterprises increased dramatically,in order to survive in the market,the mining enterprises must enhance their competitiveness.The site of plant area is the basis of the reasonable and standardized layout of the mine and the technical scheme.The technology and economy selection,directly affect the production capacity of mining enterprises,operating costs,management difficulties and economic benefits.Therefore,the use of scientific and advanced design,develop of clear environmental measures,as well as more accurate assessment of the project economy is an important means for the mining enterprises to improve competitiveness.Firstly,the paper according to the hydrogeological conditions of the mining area and topography,The position of ore body,the surface monitoring zone and the location of the tailings and other factors,delineation and rough selection of three alternative sites.Secondly,based on the research results of domestic and foreign literatures,use the fuzzy comprehensive evaluation method based on entropy weight method to optimize the selection site of YJL mine project,and the mine layout is arranged scientifically around the best selection site,get a technically viable site program.Finally,this paper uses the economic evaluation method to analyze the best project,to determine the investment estimates and financing under the project,through profitability and solvency analysis,break-even analysis and sensitivity analysis,demonstrated the financial feasibility of the project,qualitative analysis the environmental impact of the project and preventive corresponding measures.Through the study of site selection and project economic evaluation of YJL mine,The project is technically advanced,economically reasonable and conforms to environmental policy.The research of this paper provides some reference for the site selection and project economic evaluation of large-scale mining in China. |
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