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Evaluation of methods for controlling silica dust exposures of roof bolters.

Authors
Goodman-GVR; Organiscak-JA
Source
Trans Soc Min Metal Explor 2003 Jan; 312:133-137
NIOSHTIC No.
20023095
Abstract
This paper examines methods for limiting occupational silica exposures for roof-bolting personnel in underground coal mining. A canopy air curtain and an air tube were evaluated as means to provide filtered air over the breathing zone of these personnel. Laboratory testing showed that dust reductions beneath the air curtain and air tube approached 60% and 40%, respectively, with low interference air velocities. The data with distance. This paper also evaluates a metal rake, a flexible insert and a rigid insert for cleaning the roof- bolter dust collector box. Less dust was produced when using the rigid insert. Surprisingly, the flexible insert was sometimes no better than scraping or raking the dust onto the mine floor. However, little dust got on the workers coveralls when using either of the inserts.
Keywords
Silicates; Silica-dusts; Underground-miners; Underground-mining; Air-filters; Dust-exposure; Dust-control-equipment; Dusts; Mining-equipment; Mining-industry; Miners; Respirable-dust; Control-technology; Engineering-controls
CODEN
TMENAE
CAS No.
14808-60-7
Publication Date
20030101
Document Type
Journal Article
Editors
Yernberg-WR
Fiscal Year
2003
NTIS Accession No.
NTIS Price
ISBN No.
1873352297
ISSN
1075-8623
NIOSH Division
PRL
Source Name
Transactions of the Society for Mining, Metallurgy, and Exploration
State
PA
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