What regulations should be met in the design of mine ventilation system?
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2 The ventilation system should be simple, the structure of the mine wind network should be reasonable, and the air flow should be stable and easy to manage;
3 The effective air volume rate of the mine ventilation system should not be lower than 60% ;
4 When an accident occurs, the wind flow should be easy to control, and personnel should be easy to withdraw;
5 There should be a downhole environment and safety monitoring and control system that meets the requirements.