What are the characteristics that mining air ducts need to have?

Due to the polluted air below the mine, low oxygen content, and high dust content, the mine air duct needs to have good ventilation efficiency, and the connection needs to be strong and tight. Special devices need to be equipped to dilute harmful gases and dust in the air to ensure that miners can operate normally.
Strengthen gas inspection
Gas management personnel need to hang gas instruments on site to strengthen gas inspection. After replacing the mine air duct, gas inspection personnel need to detect the concentration value of gas. As long as the gas concentration does not exceed 3%, local fans can be turned on and discharged on site. Otherwise, a professional ventilation team must develop detailed safety measures for gas discharge before it can be discharged.
Characteristics required
The main characteristics that mining air ducts need to have are as follows: the first one is sturdy and durable, with high requirements for air filtration, and can be waterproof and electric. The functions of air duct products are very comprehensive, and if there are special requirements, they can also be freely installed and disassembled.