Coal mining door application:  

Explosion door asylum cavern, cavern, cavern explosion door, cavern isolation door

Protective airtight asylum cavern system contains MiBiMen explosion-proof MiBiMen, isolation.

During the period of the communist party of China held the eighteenth big, for coal mine safety

supervision administration and national security increased attention, requires each coal mine 

must be equipped with at least two asylum cavern.

Coal mining door parameter:  

Model MMB 1.4*1.8 ,

MMB means airtight door,

1.4 means net width through the cave (Or refers to the net width of door without frame) is 1400mm.

1.8 means net height through the cave (Or refers to the net height of door without frame) is 1800mm.

Water-proof air-tight Model Drawing No.

MB1.4×1.8 B85-373(1)

MB1.6×1.8 B85-373(2)

MB1.8×2.0 B85-373(3)

MB2.1×2.0 B85-373(4)

Coal mining door pictures:  

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