The gate of life under the 100-meter well

Atlas

[Voice-over] Xiao Zheng, is this door behind you really smart? Do you still switch on and off?

[Xiao Zheng] Of course, this is the automatic damper under our well, when you see it automatically open and close, it means that there is just a vehicle passing by. After the light flashes three times at a distance, it turns on automatically. Generally, a group of dampers consists of two doors, and after the first door is closed, the other door will automatically open. The damper is not only the role of pedestrians, there is another more important role, is to regulate the wind flow, to ensure that the air volume of the wind site is sufficient, if the door is damaged or malfunctioning, the entire underground ventilation system will be disordered, resulting in gas and other toxic and harmful gases accumulation, causing a three-way accident. Therefore, we habitually call the wind gate under the well the gate of life.

What do you think? Coal mine underground damper, do you understand? (Liu Peng ZhengHong)

Editor-in-Charge: Wei Suo