Research on mine air current state control during ventilators switching period of multi ventilation shaft system

Base the energy conservation law of the mine ventilation network circuit, the paper introduced the analysis method of the warm ventilated air pressure influenced to the air current state in the ventilation network branch. The paper proposed the control principle of the air current state in the ventilation network in consideration of the warm air function. According tot the practical case of the warm ventilation air pressure influenced to the air current of the ventilation network branch, the paper proposed and practiced the control measures for the air current state of the ventilation network under the ware air pressure. The measures have efficiently controlled the air current of the ventilation network branch for the mine safety during the ventilators switching period in the West ventilation mine of Pansan Mine.