Brattice

A brattice is an internal partition or wall constructed in a mine, typically a coal mine, to control the ventilation airflow. Its primary purpose is to direct fresh air to the working faces where miners are actively extracting resources and to channel stale or contaminated air away from these areas. Brattices are essential for maintaining a safe and breathable atmosphere within the mine, preventing the buildup of dangerous gases such as methane and carbon monoxide, and reducing the risk of dust explosions.

Brattices are generally constructed from materials such as wood, brattice cloth (a heavy, fire-resistant fabric), concrete blocks, or steel sheeting. The specific material used depends on factors such as cost, durability requirements, and the expected lifespan of the ventilation control. The effectiveness of a brattice depends on its integrity and airtightness. Any leaks or gaps in the structure can compromise the ventilation system and reduce its overall efficiency.

Brattices can be either permanent or temporary structures. Permanent brattices are used to establish long-term ventilation patterns, while temporary brattices are erected and dismantled as mining operations progress through different areas of the mine. The design and placement of brattices are carefully planned by ventilation engineers to optimize airflow and ensure the safety of the workforce. Improperly constructed or poorly maintained brattices can have serious consequences, potentially leading to hazardous conditions and increased risk of accidents.