Air Duct Protection Device of Local Ventilator in Coal Mine
In coal mine production,the ventilation of driving roadways is very important,which has a direct impact on mine safety production.In order to ensure the stability of roadway ventilation,it is necessary to reduce the damage rate and air leakage coefficient of local ventilator by extending the service life of ventilator air duct.Through analysis,a set of air duct protection device was designed,and the performance analysis of the new type air duct protection device was carried out.The application of the device can obviously reduce the damage rate of the air duct,prolong the service life of the air duct,solve the problem of insufficient air volume in the driving roadway,and obtain remarkable application results.
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