Measurement and Analysis of Resistance in Ventilation System of Jiaojiazhai Coal Mine
Received date: 2017-11-06
Revised date: 2018-03-29
Online published: 2018-10-31
In order to understand the distribution of ventilation resistance in mine ventilation system,provide better ventilation and resistance reduction,and to provide reliable basic information for ventilation design,network calculation and optimization,it is necessary to measure the resistance of mine ventilation system.The resistance of ventilation system was measured by base point method,and the parameters were determined for different measuring points.The measurement results were further calculated and analyzed from four aspects: evaluation of measurement accuracy,the distribution of ventilation resistance,the accumulation holes of mine and wind resistance.The results show that the layout of ventilation system and resistance distribution of Jiaojiazhai coal mine is reasonable,and the degree of ease of ventilation is easy.The wind resistance of the common air inlet wind roads in the three mining areas is large,and the facilities for regulating the air volume down hole in mines are too much,and the amount of air leakage from the damper is too high.It is recommended to replace the No.1 and No.2 fans and to strengthen the maintenance and management of the mine’s total return airway.
Xudong ZHU , Zhongliang LU . Measurement and Analysis of Resistance in Ventilation System of Jiaojiazhai Coal Mine[J]. Gold Science and Technology, 2018 , 26(5) : 629 -634 . DOI: 10.11872/j.issn.1005-2518.2018.05.629
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