The Jiangchuan Qing Ditch Phosphate Deposits In Mathematical Economic Models

The natural resource man demand forexisting is limited on earth. So reasonable exploitation and utilization of mineral resources is a critical problem be referred to human existing and sustainable development. Mineral resources has been one of a etermining factor affecting prosperity and strong of our country. The development of mining is a import criterion for weighting the economy, development and overall strength of the country. The increasing demand of mineral resources make it more and more evident of geology's task to discover mineral resources. The inevitable development tendency of geological science is to integrate information technology to geology to get over the deficiency in deposit research.The existing and developing crisis of mining in our country such as depletion of stock, durative low efficiency of labor, poor product competitive power, serious environmental pollution and so on occurs for lacking investment and draggle technical arrangement and technique in recent years. The problem how to blockout ore limit, know the form of geologic body underground, calculate ore body reserve volume and hold tenor regularities of distribution of ore body space more accurately to direct the effective exploitation and utilization. The efficient path for resolve the problem is to establish data-base and model of mineral deposit using "deposit mathematics&economic model" software package.Various producing tache in Qingshuigou of Jiangchuan phosphorite area, one of the main phosphorite deposit in Yunnan province was still exist in primitive state. So it is necessary to make the mine digitalized. The principle of mine digitalization and research progress of mining software at home and abroad were introduced in this paper. Based on the sufficient analysis and study on the geologic feature of Qingshuigou phosphorite, the mathematics&economic model of phosphorite deposit in Qingshuigou phosphorite was established using "deposit mathematics&economic model" software package integrating the practical situation in Qingshuigou phosphorite mine. The following conclusion were summarized:(1)The mathematics model of phosphorite deposit in Qingshuigou phosphorite was established and the digitalization and visualization of useful information of ore body were realized.(2)The raw data base was established and operations of investigation, additions and deletions and modification to data base were realized. It is operation significance for dynamic management to mine producting.(3)The tenor distributing histogram and probability frequency plot were plotted based on the studying on regularities of distribution of sample by investigating sample quantity, mean, variance, standard deviation, frequency distribution.(4)The assessed value of estabilshed space tenor model of ore body using Kellge method is basically inosculate with practical value.(5)The quick calculation of ore body reserves and tenor was realized, flat sheet and profile chart of ore body can be plotted computer and the automaticity of mine production was improved through the mathematics model of phosphorite deposit in Qingshuigou phosphorite.(6)The purpose for using mineral resources reasonablly was arrived at for observing appearance, internal structure and spatial variation law easily after established mathematics model of phosphorite deposit in Qingshuigou phosphorite.(7)The objectivity and scientificaalness of economic appraisal of deposit were realized and assess effectiveness was improved by technical economy analyzing of deposit. Finally, the waste of resource and capital can be cut down and production efficiency of mine would be improved.