Mine fire barrier doors

Dual doors for fire and fence between underground main drainage pump and the main substation chamber; substation within the mining area of ??the channel; inner belt conveyors, winches electrical equipment and variable electrical power distribution chamber and other channels, When downhole fire, the combustion is not spreading, and ensure mine safety. Second, models, specifications dual fire and fence gates there were four specifications, as follows: No. Model Specification Drawing No. 1 MFHSL1.4 × 1.8 B85-373.29 2 MFHSL1.6 × 1.8 B85-373.30 3 MFHSL1.8 × 2.0 B85 -373.31 4 MFHSL2.1 × 2.0 B85-373.32 Model example: MFHSL 1.4 × 1.8 MFHSL: Fire gate, 1.4 × 1.8: Net cave mouth cave mouth by the height 1800mm 1400mm width size net by fire and fence gates three dual-use products Description of the fire and dual fence gates for the Ministry of Coal Industry Design and Research Institute, Wuhan mine design, product quality standards and testing standards strictly enforced Q / WMS-3011-2005 "dual fire and fence gates." Fourth, the products are mainly structural fire protection and dual door by door fences, doors, locking devices and other components. 1, door frames and mullions for the angle closure plate has a semicircular channel beams join together, no next door. 2, doors for angle, steel, welded steel mesh group, corresponding to install steel mesh steel doors. 3, the locking device using inside and outside turning the handle and clamp.