WebMar 2, 2024 · Brattice ventilation curtains are an essential method of controlling airflow in underground tunnels and have been in use since the 1800s. Following the 1969 Coal … WebJan 1, 2014 · A three-dimensional model is developed for a typical mine development region where the active mining takes place, as shown in Fig. 1.Details on the geometrical parameters are: W tunnel = 4.0 m; L tunne l = 12 m; H tunnel = 2.9 m; blowing fan diameter 0.3 m; exhaust fan diameter 0.6 m; brattice space in main shaft (W b 1) = 2 m; and …
Brattice Definition & Meaning YourDictionary
Webdifferent combinations of gas emission rates and air velocities. Brattice hung in the cavity helped reduce methane concentrations without auxiliary ventilation. It was also found … WebBrattice ventilation curtains are an essential method of controlling airflow in underground tunnels and have been in use since the 1800s. Following the 1969 Coal Act, mines are required to have an adequate … atacama login
Ventilation in Underground Mines and Tunnels - WorkSafe …
WebCheck curtain - Sheet of brattice cloth hung across an airway to control the passage of the air current. Chock - Large hydraulic jacks used to support roof in longwall and shortwall mining systems. Clay vein - A body of clay-like material that fills a void in a coal bed. Cleat - The vertical cleavage of coal seams. The main set of joints along ... WebThirty-two cases of device configurations were analysed. The length and position of the brattice, as well as the height and position air-duct outlet along tailgate, were modified. … WebJun 11, 2014 · The methods used include: application of blowing and exhaust fans, application of brattice and combination of both. The results suggest that among the examined methods, implementation of appropriately located brattice to direct the flow from the main shaft to the mining face is the most effective method to direct dust particles … asian ndes