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Mining Publication: Field Comparison of a Roof Bolter Dry Dust Collection System with an Original Designed Wet Collection System for Dust Control
Keywords: Bolters Coal dust Coal workers pneumoconiosis Respirable dust
Original creation date: April 2021
Authors: W Reed, M Shahan, G Ross, D Blackwell, S Peters
Peer Reviewed Journal Article - December 2020
Go to Web Page
NIOSHTIC2 Number: 20060832
Min Metall Explor 2020 Dec; 37(6):1885-1898
Dust collectors for roof bolting machines generally use a dry box to collect the roof bolting material. Recently, an underground mining operation converted a dry box dust collector to a wet box dust collector with a unique exception from MSHA for testing purposes. Water is routed to the roof bolter from the main water line of the continuous miner. The wet box utilizes a water spray to wet the incoming material. Testing was conducted comparing the two different collector types. Respirable dust concentrations surrounding the roof bolter with the different collection boxes were similar. The main difference in respirable dust concentrations occurred when cleaning the dust boxes. The average respirable dust concentration during cleaning of the wet box was 0.475 mg/m3, and during the cleaning of the dry box, the average respirable dust concentration was 1.188 mg/m3, a 60% reduction in respirable dust concentration. The quartz content of the roof material was high, ranging from 28.9 to 52.7% during this study. The results from this study indicate that using the wet box as a collector reduced exposure to respirable dust up to 60% when cleaning the collector boxes.
Cover image of Field Comparison of a Roof Bolter Dry Dust Collection System with an Original Designed Wet Collection System for Dust ControlPeer Reviewed Journal Article - December 2020
Go to Web Page
NIOSHTIC2 Number: 20060832
Min Metall Explor 2020 Dec; 37(6):1885-1898
See Also
Characterization of Submicron-/Nano-scale Coal Dusts and Their Effects on Miners' Pneumoconiosis and Lung Cancer for Underground Coal Mines
Coal Workers' Health Surveillance Program (CWHSP)
Control of Respirable Dust
Enhanced Utilization of Personal Dust Monitor Feedback
Evaluation of the Approach to Respirable Quartz Exposure Control in U.S. Coal Mines
Faces of Black Lung
Laboratory Evaluation of a Canopy Air Curtain for Controlling Occupational Exposures of Roof Bolters
Respirable Dust Control for Surface Mines
Respirable Quartz Hazard Associated with Coal Mine Roof Bolter Dust
Trend in Black Lung Cases Concerns NIOSH Researchers
Page last reviewed: February 28, 2022
Page last updated: February 28, 2022
Content source: National Institute for Occupational Safety and Health, Mining Program
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