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Investigation of longwall face ventilation air-splitting methods for improved dust control.

Authors
Organiscak-JA
Source
1999 SME Annual Meeting, March 1-3, 1999, Denver, Colorado, Preprint 99-5. Littleton, CO: Society for Mining, Metallurgy, and Exploration, 1999 Mar; :1-14
Link
NIOSHTIC No.
20024166
Abstract
Two types of airflow splitting methods for improving longwall dust control were investigated by NIOSH's Pittsburgh Research Laboratory. These methods included a translucent mesh barrier and a staged spray barrier system to confine the shearer-generated dust to the coal extraction side of the longwall face while maintaining a cleaner split of airflow on the opposing worker walkway side of the longwall face. The translucent mesh barrier was shown to provide notable dust control effectiveness up to 60 m downstream of the shearer in both the laboratory experiments and a longwall field evaluation, provided the mesh barrier remains relatively parallel to the airflow. The staged spray barrier system showed marginal dust control effectiveness in the laboratory and subsequently was not field tested
Keywords
Mining-equipment; Underground-mining; Ventilation; Ventilation-systems; Dust-control; Dust-control-equipment; Dust-measurement; Dust-suppression; Dusts
Contact
NIOSH, Pittsburgh Research Laboratory, P.O. Box 18070, Pittsburgh, PA 15236
Publication Date
19990301
Document Type
Conference/Symposia Proceedings
Fiscal Year
1999
NTIS Accession No.
NTIS Price
NIOSH Division
PRL
Source Name
1999 SME Annual Meeting, March 1-3, 1999, Denver, Colorado, Preprint 99-5
State
PA; CO
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