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Effect of scrubber operation on airflow and methane patterns at the mining face.

Authors
Taylor-CD; Chilton-JE; Hall-EE; Timko-RJ
Source
Proceedings of the 11th U.S./North American Mine Ventilation Symposium, University Park, Pennsylvania, June 5-7, 2006. Mutmansky JM, Ramani RV. eds., London, U.K.: Taylor & Francis Group, 2006 Jun; :393-399
Link
NIOSHTIC No.
20030322
Abstract
NIOSH has conducted research to determine the influence of mining machine-mounted scrubbers on airflows and methane concentrations at the face when blowing ventilation systems are used. Tests were conducted in a full-scale ventilation gallery with a model mining machine that simulated airflow created by a dust scrubber. During the tests, ultrasonic anemometers were used to measure airflow speed and direction at several locations near the face. For the same test conditions, methane was released from the face and gas concentrations were measured at 21 locations above the machine using fixed-point methanometers. Changes in airflow speed and direction are correlated with scrubber airflow and the measured methane distribution above the mining machine. The research results showed that operation of machine-mounted scrubbers improved face ventilation when blowing ventilation is used by increasing both the intake flow and the quantity of air reaching the face.
Keywords
Mining-industry; Underground-mining; Coal-mining; Ventilation; Air-flow; Ventilation-systems
Contact
NIOSH Pittsburgh Research Laboratory, P.O. Box 18070, Pittsburgh, PA 15236
CAS No.
74-82-8
Publication Date
20060605
Document Type
Conference/Symposia Proceedings
Editors
Mutmansky-JM; Ramani-RV
Fiscal Year
2006
NTIS Accession No.
NTIS Price
ISBN No.
0415401488
NIOSH Division
PRL
Priority Area
Research Tools and Approaches: Control Technology and Personal Protective Equipment
Source Name
Proceedings of the 11th U.S./North American Mine Ventilation Symposium, University Park, Pennsylvania, June 5-7, 2006
State
PA
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