| The mining industry is an independent foundation industry in the national economy, the foundation industry nature of mining is decided by it's status in the national economy. Since the modernized industry and the modernized agriculture have appeared, mineral resources has become one of determining factors to influent the prosper of society and the national prosperous, mineral resources rich degree, basically reflects a national development latent strength. In the current resources globalization and the economical globalization new situation, the development of mining industry is an important symbol to weight a state economy, the society development and the comprehensive national strength.But, as the present mine situation to speak, our country mining industry has met the unprecedented survival and development crisis, such as the resources depletion, the labor productivity low, the product competitive ability difference, the environmental pollution is serious and so on. Therefore, the mining enterprise would develop that is decided to various factors. First we must adjust ore grade, the deposit development and the mining plan according to the market change condition, so mine enterprise needs clearly to understand the deposit's internal structure characteristic and exterior shape spatial variation rule. Using the microsoft Surpac establish database and the ore deposit model, we can get the ore body three dimensional visible model, it happen to may achieve this goal; Next how has to achieve an enterprise benefit maximized into mine enterprise's key work under the limited resources, happen to may carry out this goal in the minerals economic evaluation,it can provid the scientific basis for the mine enterprise's management.The present paper in carries on the full analysis and in the research foundation to the geological feature of tin-zinc polymetallic deposit in Manjiazhai, Dulong, Maguan, With the help of computer,the theories of geostatic,geomathematics and Surpac as the application software to study the digitization of tin-zinc polymetallic deposit in Manjiazhai and has carried on the minerals economic evaluation in this foundation. The main research work and results are listed as follows:(1) The original ore database has been established, include 413 Prospecting engineering,near 38133 samples'Sn,Zn value, has realized the drill hole space orientation and the three dimensional solid display.(2) Through the general-satistical-analysis on value og the sample chemical examination data carried on the combination sample, it is concluded that Sn,Zn value obediences logormal distributed and their variation factors are as follows:270.1%,189.5%. This shows it is a extremely non-uniform deposit. (3) The lithology model of tin zinc polymetallic deposit is established,and the variation function curves is calculated and fitted, and at last a mathematic model of deposit is established.(4)By means of ordinarily Kriging, the deposit is estimated by the unit of 25mx25mxl0m cube meters in volume, and the grade model is built up. Finally this model is using by Kunming Engineering and Research Institute of Non-ferrous Metalurgy.(5) A north the coordinates 3200m section plane grade distribution map, east the coordinates 3000m section plane grade distribution map, and cross section of No.87# exploration lines'grade distribution map and so on plotted by computer.(6)Realised the dynamic multi-plans to select the ore body, has calculated the comprehensive grade of the ore body, has determined the best boundary ore grade, and has carried on the sensitive analysis.(7) Has carried on the Surpac software and correlation computer technology training to the YunNan HuaLian Zinc & Indium Limited liability company's staffs, so the research result was applied and spread.
|
PDF Full Text Request