In order to solve the problem of air volume tension in the Nanfengjing system, the fan efficiency of the Dongfeng well is utilized, and the combined operation of the east and south wind turbines is carried out, which is the planner. The early stage is the current stage, and the development of the first and seventh mining areas is completed after the end. In the later period, the three mining areas will be fully developed. The wind road of the third is to take the south wind well or the Dongfeng well. For the scheme n. Under the operation of the new wind turbine, keep the Dongfeng well running, and the existing ventilation system will remain unchanged. From the perspective of energy saving, the Dongfeng Well is shut down, and the Nanfeng Well is responsible for the supply of the whole mine. At this stage, the two-stage 25 is opened and the second-stage 30 is opened. The research is based on the real and reliable ventilation parameters, current and medium-term development. Under the premise of basic layout, the ventilation system is as simple, stable and reasonable as possible, and the ventilation capacity can meet the needs of safe production to the greatest extent. The computer and its software are used to optimize the above four schemes (8 cases).

The schemes listed in the wind network solution result basically cover the various conditions of the mine under the premise of satisfying the required air volume. The implementation premise, wind flow route, solution results and advantages and disadvantages of each program, the program comparison from the technical point of view and to meet the safety production angle, whether the new or old wind turbines need to increase the air volume in the early stage, or the later development of the three must be burdened by the Dongfeng well Satisfactory, the system wind pressure is small, the wind network is matched, the system is simple, and the technology is reasonable. From the economic point of view, the power consumption of different schemes is calculated by using the operating conditions of each scheme: the south wind well and the Dongfeng well are operated together, the old wind turbine consumes 252kwh, the Dongfeng well 172kwh, the new wind turbine single stage 27.50 power consumption 340kwh; only the south The wind shaft runs, the power consumption of the two-stage 250 hours is 600kwh, and the power consumption of the two-stage 300 is 750kwh. Therefore, the early stage new wind turbine 27.50 and the Dongfeng well jointly operate two sets of 25 than the new wind turbine. The power consumption is less than 8kwh, and the power consumption is 238kwh less than the new fan two-stage 300. However, the new wind turbine 27.50 and Dongfeng well combined operation consumes 76kwh more than the existing fan operation.

If the Dongfeng Well is shut down, in addition to the factors that do not save electricity, the Dongfeng Well in the early period passed the wind of 16.9m3/s from Dingliu through 70m Dongda Lane. Both the front and the end of the air volume meet the requirements. Partition ventilation cannot be achieved, and 225 (Procedure) is violated. In the later period, the wind pressure of Dongfeng Well exceeded its own air supply capacity. The Nanfeng Well is responsible for other Nanfeng Wells, and the Dongfeng has surpassed its own capabilities. The air volume at each point basically meets the requirements. Partition ventilation is possible. The Dongfeng Well is responsible for the long resistance of the West Wing route. The air volume satisfies a wealth. Low wind pressure is conducive to ventilation management and fire prevention management. Dongfengjing can meet the three supply air at low angles, leaving room for air supply for the development of the three. The air volume is rich and efficient.

Reduce a set of equipment and personnel. A fan system serves the entire mine. The production is too concentrated, and the air volume is not easy to adjust, which is not conducive to district ventilation. It is not possible to leave sufficient air volume for the south wind shaft to develop medium and long-term supply air for the western part of the mine. Therefore, from the comparison of the technical and economic rationality of each program, the Dongfeng well is maintained in the early and late stages, and the new wind turbine of Nanfeng Well is opened, and the south and east wind shafts are jointly operated. For 5640 lining / min, check the measured curve with a single stage 30 can be full, enough. From the actual network results, compared with the actual results, the forecasting scheme is in line with the actual results. According to the demand of the wind, after the single-stage 30 network, the air volume of the whole mine is increased from 6900m3/min to 8090m3/min. The parameters of Dongfengjing system are basically unchanged. The total return air volume of the South Wind Well System is increased by 1100m3/min, of which Dingliu Zengfeng is 803m3/min, which is in line with the requirement of increasing the two tunneling faces and has achieved the expected results.

Elemental Analyzer

Elemental analysis is a process where a sample of some material (e.g., soil, waste or drinking water, bodily fluids, minerals, chemical compounds) is analyzed for its elemental and sometimes isotopic composition.[citation needed] Elemental analysis can be qualitative (determining what elements are present), and it can be quantitative (determining how much of each are present). Elemental analysis falls within the ambit of analytical chemistry, the set of instruments involved in deciphering the chemical nature of our world.

Single Channel Analyzer,Multi-Channel Element Analyzer,Fluorescence Element Analyzer,X-Ray Element Analyzer

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