FIELD: mining.
SUBSTANCE: gate includes double-leaf bed installed in box and longitudinal and transverse bed movement mechanisms. Elastic seals are arranged in closed position of gate between box and front surface of bed, as well as on rear surface of bed. Simultaneous pressure of bed leaves to box is performed with external support fixed in the wall of underground mine working.
EFFECT: higher strength of double-leaf bed of gate and higher sealing reliability of underground mine working.
7 cl, 3 dwg
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