What is local ventilation? What are the methods for local ventilation?

In the excavation work, because there is no circular network, there is only one passage in the roadway called single head. It needs to enter the wind and wind, and dust and gun smoke will be generated during the excavation process. Therefore, without effective ventilation, It is difficult to ensure the safety of production. Therefore, the special ventilation measures taken in this area are called local ventilation.

Local ventilation methods are:

First, use local fan fan ventilation;

2. Using a high-speed jet of compressed air or high-pressure water to drive the ejector of the surrounding air for local ventilation;

3. Using the total pressure difference of the mine and guiding the airflow with the air duct and the wind wall for local ventilation;

4. Drilling and ventilation. After drilling through the upper and middle sections, use the total pressure difference or local fan ventilation.

Cable Tray Roll Forming Machine

Cable tray forming machine not only can be set up independently in buildings, but also can be attached in a variety of buildings (structure) on building and pipe rack bracket.