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Replacing Brattice Cloth At Coal Faces With Air Curtains and Diffuser Fans. A Preliminary Study.

Authors
Bielicki-RJ; Thimons-ED; Kissell-FN
Source
NTIS: PB 244 790 :8 pages
Link
NIOSHTIC No.
10000730
Abstract
The possibility of replacing the brattice cloth closest to the coal mine working face with an air curtain mounted on top of a continuous- mining machine or with a diffuser fan was explored by the Bureau of Mines. Preliminary tests conducted at a full-scale model working face with the brattice end set at 18 feet showed that the air curtain improved face ventilation only slightly and was not nearly as effective as placing the brattice at 10 feet. A 2,000-ft3/min diffuser was more effective than the air curtain. It is concluded that the air curtain probably could not function as a line brattice extension, although the diffuser fan may have some potential.
Publication Date
19750101
Document Type
IH; Report of Investigations
Fiscal Year
1975
NTIS Accession No.
PB-244790
NTIS Price
A02
Identifying No.
RI 8052
NIOSH Division
PRC;
Source Name
NTIS: PB 244 790
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division