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US 10,900,357 B2Granted
Blowing curtain face ventilation system for extended cut mining using passive regulator
AssigneeUniversity of Kentucky Research Foundation
InventorsAndrzej M. Wala, Todor P. Petrov
Life of this patent
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Abstract
A ventilation system for an underground mine includes a blowing curtain, a passive regulator in a shape of an airfoil and an airflow ventilation source. The passive regulator is positioned in the air path adjacent a discharge end of the blowing curtain.
Claims8
A face ventilation system for directing a fresh airstream along a rib wall to an immediate face zone of a working area in an underground mine, comprising:
- a blowing curtain;
- an airflow ventilation source outside of the working area generating the fresh airstream;
- and;
- a passive regulator including a curved leading edge of an airfoil adapted to receive the fresh air stream flowing along the rib wall, reduce separation of the fresh airstream from the rib wall and increase flow of fresh air into the immediate face zone to sweep dust and methane from the immediate face zone and eventually out of the underground mine.
1 more element
Dependencies are inferred from the claim text.