Influence of Installation Angle of Mining Ventilator on the Operating Characteristics of Ventilator
In order to further improve the coal mine FBD No.7.1/2 × 37 counter-rotating axial fan operation full pressure and full pressure efficiency,the use of orthogonal optimisation of the scheme on the fan with different impeller speed,fan with different blade mounting angle with the case of the fan operating state was studied.According to the actual verification,it can be seen that the fan has the best operating condition when the installation angle of the primary blade is 65°,the installation angle of the secondary blade is 40.5°,and the fan rotational speed is 560r/min,which greatly improves the operation reliability of the mine ventilation system.
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