| 摘要 |
An explosion barrier for underground mining comprises a number of extinguishing agent containers (1, 1'), which are filled with an extinguishing agent (5) and fastened with their broad sides transversely in relation to the longitudinal direction of the line of props (3). The containers (1) have on the front side (7) and on the rear side (8) a corrugated impingement surface (10), which comprises a thin film-like container wall (4), which when impinged by a pressure wave (40) leads to a safe and rapid release of the filled extinguishing agent (5), in particular rock dust, because it tears at predetermined points of weakness. |
