Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Development of a canopy air curtain to reduce roof boltersí dust exposure.

Authors
Listak-JM; Beck-TW
Source
Min Eng 2012 Jul; 64(7):72-79
NIOSHTIC No.
20041873
Abstract
The U.S. National Institute for Occupational Safety and Health (NIOSH) conducted a study to determine the effectiveness of a filtered air delivery system to reduce respirable dust exposure of roof bolter operators in underground coal mines. When performing roof bolting operations, roof bolter operators may experience exposure to high levels of respirable dust during a working shift, especially when working downwind of the continuous mining machine. While drilling and installing roof bolts, this filtered air system supplies a clean curtain of air over the roof bolter operator by means of a plenum mounted beneath the canopy. This experimentally designed air curtain, adapted for roof bolting machines used in this study, is based upon previous design prototypes, computational fluid dynamics (CFD) simulations and trial-and-error testing. Both the prototype and final designs were tested in the full-scale mining galleries at the Office of Mine Safety and Health Research (OMSHR) in Pittsburgh, PA before being taken underground for field testing. Test results of the system in both laboratory and field studies show reductions in operator exposure to respirable dust when the operator is positioned directly under the protected zone of the canopy.
Keywords
Mining-industry; Respirable-dust; Underground-mining; Dust-exposure; Dust-control-equipment; Dust-control; Dust-inhalation; Dust-measurement; Dusts; Air-filters; Air-flow; Air-quality-control; Environmental-control-equipment; Equipment-design; Equipment-reliability; Testing-equipment; Laboratory-testing; Coal-dust; Coal-mining; Filters; Mining-equipment; Machine-operation; Employee-exposure; Control-technology; Engineering-controls; Particle-aerodynamics; Fluids
Contact
J.M. Listak, NIOSH, P.O. Box 18070, Pittsburgh, PA 15236
CODEN
MIENAB
Publication Date
20120701
Document Type
Journal Article
Fiscal Year
2012
NTIS Accession No.
NTIS Price
Identifying No.
B20121218D
Issue of Publication
7
ISSN
0026-5187
NIOSH Division
OMSHR
Priority Area
Mining
Source Name
Mining Engineering
State
PA
TOP