Research and application of the key technologies of intelligent ventilation system for underground mines
Mine intelligent ventilation system is the main system of underground mining,and the realization of intelligent mine ventilation is the main technical support to realize intelligent mining and the construction of smart mine,which mainly involves the intellectualization of the reverse running of ventilator,local ventilation and mine roadway ventilation matching of the main ventilator system.In order to improve the intelligent level of reverse running of the main ventilator system,in view of the problem in the northern cold area of the coal mine air gate is frozen,an air gate with heating function is proposed.Through the simulation study,the single outlet structure and export structure internal heating structure heat dissipation effect is compared,and the single outlet structure is selected,to provide the foundation for automatic reverse running of the ventilator.On this basis,the reverse running control process based on antifreeze air gate is proposed without stopping the ventilation.For the intelligent adjustment of local fan,the blade angle control based on mechanical control mode is proposed,which can realize the independent control of two-stage blade angle and increase the control range of the fan.The above research results has been applied in Xingyu Coal Mine,achieving favorable results,which can provide a new idea for the research and application of mine intelligent ventilation system.
intelligent ventilationnon-stopping reverse runningantifreeze air gateblade angle adjustment
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