BMB series emergency rooms are closed

Introduction of BMB series emergency room closed door products

The main function of the refuge chamber is to provide life support for those who can not evacuate in time in case of underground disaster and accident. Therefore, the design of the closed door of the refuge room adopts the structure of two doors that open outwards. Both doors are provided with observation Windows for convenience and safety. The outer door of the first door adopts the protective closed door that can withstand the impact pressure of not less than 1.0mpa and can block the toxic and harmful gas; The inner second door adopts a closed door that can withstand the impact pressure of not less than 0.3 MPa and can prevent toxic and harmful gases. It should be ensured that the air pressure inside the refuge is always higher than the air pressure of the external environment by more than 100Pa throughout the rated protection time. At the same time, in order to resist high temperature flue gas, the interlayer of two doors is filled with heat insulation material with good thermal insulation performance.

Between two doors for the transition room, closed door for the survival room.

The impact that a closed door can withstand is roughly equivalent to being hit by a car at 60 kilometers per hour. This kind of refuge room is generally set up in the underground car yard, the horizontal roadway or the disaster avoidance line in the mining area. The general refuge room is located within 500 meters of the excavation work area.

BMB series emergency room closed door product features

Single fan is adopted to open the closed door of the coal mine refuge chamber outwards, and plane bearing is adopted for the rotating shaft to ensure the flexible rotation of the door fan and convenient opening and closing.

Similarly, the door leaf adopts the technology of concave inside the door leaf, the contact surface adopts double sealing, and adopts clamping technology, which makes the maximum coordination between the door leaf and the door frame to ensure the sealing of the door leaf. The sealing material adopts aviation high pressure and high temperature resistant material to ensure that it can achieve good sealing effect under any circumstances in coal mine. In addition, the sealing way we use the groove technology, so that the sealing material in the case of closing the door, protection in the sealing groove, so that also achieve the effect of the protection of sealing material. Ensure that harmful gas can not enter the refuge chamber, the refuge chamber has really closed the effect.

The protective closed door is opened clockwise (" front "door), and the thickness of both door frame walls is 700mm; The spacing between the two doorframe walls shall not be less than 3.0m.

When refuge adit room is installed with protective close door, answer according to installation method, after installation answer straight level off, door frame and wall body are united in wedlock firm, door leaf opens agile, ensure the sealing performance of two doors.

Main specifications of BMB series emergency Room with closed door

Physical picture of BMB series emergency room closed door products