VENTILATION SYSTEM WITH NOISE SILENCER OF UNDERGROUND STRUCTURE Russian patent published in 2010 - IPC E21F1/00 F24F13/24

Abstract RU 2393352 C1

FIELD: mining.

SUBSTANCE: system includes pit shaft with air-sound channels, ventilation and noise silencer chambers and ventilation stall. Stall is attached to pit shaft by means of the pipeline piece built in the building located above the underground structure. Between ventilation and noise silencer chambers there installed is elastic diaphragm with an opening.

EFFECT: reducing noise level by means of multi-staged silencing.

1 dwg

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RU 2 393 352 C1

Authors

Zajtsev Sergej Viktorovich

Krivenko Andrej Askol'Dovich

Dates

2010-06-27—Published

2009-05-27—Filed