Some maintain methods for Ventilation DuctJune 16, 2015
Mining and Tunnel Ventilation Ducting manufacturer from ChinaJune 26, 2015
The requirement of PVC ventilation duct installation in the underground mine area is very strict and without any negligence. In order to save costs, some mine corporations cut corners on the installation process, which will lead to coal mine accident. This is an inadvisable behavior. Now we will share some attentions about ventilation duct installation.
- PVC Ventilation duct should be intact and have no damage.
- The joint of two ventilation ducts should be connected tightly. PVC coated ventilation duct should take double blank pressing on the joint.
- For the purpose of tunnel driving safety, the ventilation duct should be installed horizontally and every hook will be installed well to reinforce strength of anti-pressure and anti-tear.
- There must be an elbow on the corner of ventilation duct. Installing special- shaped items should have the transition joint and follow the rule “big then small”.
- When the PVC ventilation duct is on tram road, it must be higher than tramcar 20cm to prevent collision.
- It should control ventilation rate in different ventilation area.
- Ventilation ducts and fans should be managed strictly and gas content should be monitored regularly by workers. The surface of ducts and fans should keep clean.
- The distance between ventilation duct and coal surface should not be more than 5m.