Research on the Local Pressurized Ventilation in High Altitude Mines and its Main Influence Parameters
Authors
-
College of Civil Engineering, Tongji University, Shanghai, 200 082 ,CN
Xiaoyun Wang -
Faculty of Land Resources Engineering and Postdoctorate Station of Mining Industry Engineering, Kunming University of Science and Technology, Kunming 650 093 ,CNXiaodong Wang
Keywords:
High Altitude Mine, Low-Pressure and Oxygendeficient Condition, Local Resistance, Wind Pressure in Fan, Wind Quantity of Fan.Abstract
For protecting miners’ safety and health when they were under severely low-pressure and oxygen-deficient working condition in the high altitude mines, this paper put forward a theoretical research on the local pressurized ventilation in high altitude mines. In this paper, the relevance between air pressurization and ventilation was analysed. Meanwhile, based on single factor analysis and orthogonal experiments, this research analysed the significant difference of relevant factors on achieving the local pressurized ventilation target. The results showed that to reach the local pressurized ventilation target value, the following methods could be adopted, which included adjusting the resistance in return aircourse, amending the air flow rate and the wind pressure in ventilating fan in intake airway. Combined application of these methods could achieve the target of local pressurized ventilation. Based on the regression analysis, the parameters of high altitude mines local pressurized ventilation and the quantificational effects of local pressurized ventilation were obtained. This research provided technical references to the safety in production in the high altitude mines low-pressure and oxygen-deficient working condition.
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