1. Piloting primaries On the basis of a comprehensive understanding of the basic design data and the in-depth investigation and research on the issues related to mineral deposit development, according to the national technical and economic policies and design task books, fully consider the above-mentioned influencing factors, and propose some technically feasible solutions for each program. It is proposed to develop the transportation system and ventilation system, determine the type, location and section size of the main roadway, draw a sketch of the development plan, and select 3 to 5 development plans that may be included in the analysis and comparison. In the primaries of the program, neither technically feasible solutions nor obvious plans should be included in the comparison. 2. Preliminary analysis and comparison of development plans For the preliminary selection of the pioneering plan, carry out preliminary analysis and comparison of technology, economy, construction time, etc., and delete some pioneering plans that have no outstanding advantages and are difficult to achieve, and select 2 to 3 technically difficult to distinguish. The development plan is listed as a development plan for technical and economic comparison. 3. Technical and economic comparison of development plans For the preliminary analysis and comparison of the selected 2 to 3 development plans, carry out detailed technical and economic calculations, comprehensive analysis and evaluation, and select the optimal development plan. In the technical analysis comparison, the following technical and economic indicators are generally calculated and compared: (1) Infrastructure construction volume, infrastructure investment decision and investment recovery period; (2) Annual production and operation expenses and product costs; (3) Capital construction period, commissioning and production time; (4) The amount of equipment and materials (steel, wood, cement); (5) The amount of ore recovered, the degree of utilization of mineral resources, and the economic loss of the retained pillars; (6) The area occupied by farmland and land; (7) Safety and labor hygiene conditions; (8) Other projects worthy of participation in the comparative evaluation of the technology economy. Through the above technical and economic comparative evaluation, to measure the technical and economic benefits of mining, and finally to estimate the profit index of mining. In the calculation of technical and economic calculations, the calculations shall be based on the expanded budgetary estimates set by the State. The site where the selection and tailings ponds may be built. Small Dehumidifier For Bedroom,Small Dehumidifier For Bathroom Quiet,Dehumidifier Small Space,Small Dehumidifier For Rv Yuyao Veedai Electrical Appliance Co., Ltd , https://www.nbkxveed.com
Methods and steps for selecting a mine development plan
For a mine, there are often several technically feasible and economically indistinguishable development options. The mining development design is the best option. Due to the extensive design of the mining bed, it involves a series of problems such as the division of the mine field, the location of the field and the tailings pond, and the general layout of the ground. It is often difficult to judge the merits and demerits of the scheme. Therefore, it is necessary to comprehensively analyze and compare the methods. In order to choose the best deposit development plan. The steps for selecting a deposit plan using a comprehensive analytical method are as follows.