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Mining Publication: Improving the Performance of Fan-Powered Dust Collectors in Stone-Cutting Applications
Keywords: Dust collectors Dust control Processing plants Respirable dust Silica dust 
 Stone
This page is archived for historical purposes and is no longer being maintained or updated.
Original creation date: June 2008
Authors: GJ Chekan, AB Cecala, DE Pollock, JA Zimmer
Conference Paper - June 2008
Download PDF Document (0.51 MB)
NIOSHTIC2 Number: 20034167
Proceedings of the 12th U.S./North American Mine Ventilation Symposium, Reno, Nevada, June 9-11, 2008. Wallace, Jr. KG. ed., Reno, NV: University of Nevada - Reno, 2008; :367-373
In the dimension stone industry, workers in processing shops may be exposed to harmful levels of respirable silica dust when conducting the different tasks in stone preparation, which include cutting, grinding, polishing, and thermaling. To protect workers from this health hazard, operators sometimes ventilate processing shops using fan-powered dust collectors to capture and filter dust. To investigate this issue, NIOSH Pittsburgh Research Laboratory, in cooperation with a dimension stone operation, upgraded an off-the-shelf dust collector the operator was utilizing in a polishing/cutting shop. Initial dust surveys showed that the unit was under-designed for the amount of dust being generated in the shop. The objective of the research was to cost-effectively increase the air cleaning volume and improve dust capture efficiency of the unit with a larger motor and blower. The original stock 0.56 kw motor and blower was replaced with a 2.24 kw motor and matching blower to increase airflow. The unit was evaluated both in the laboratory and the shop before and after the retrofit to determine the improvement of the upgrade. The study showed that the 2.24 kw upgrade improved the performance over the original 0.56 kw motor resulting in more dust being cleaned from the ambient air in the shop. The 2.24 kw unit cleaned 19% more air and captured 32% more respirable dust than the 0.56 kw unit.
Image of publication Improving the Performance of Fan-Powered Dust Collectors in Stone-Cutting ApplicationsConference Paper - June 2008
Download PDF Document (0.51 MB)
NIOSHTIC2 Number: 20034167
Proceedings of the 12th U.S./North American Mine Ventilation Symposium, Reno, Nevada, June 9-11, 2008. Wallace, Jr. KG. ed., Reno, NV: University of Nevada - Reno, 2008; :367-373
See Also
Control of Respirable Dust
Dust Control by Air-blocking Shelves and Dust Collector-to-Bailing Airflow Ratios for a Surface Mine Drill Shroud
Dust Suppression Hopper Reduces Dust Liberation During Bulk Loading: Two Case Studies
Emerging Respirable Dust Sensing and Control for M/NM Mining
Field Assessment of Control Techniques and Long-Term Dust Variability for Surface Coal Mine Rock Drills and Bulldozers
Improved Drill Shroud Capture of Respirable Dust Utilizing Air Nozzles Underneath the Drill Deck
Improving Silica Dust Control Through Targeted Research
Infographics: Helping Mines Control Respirable Silica Dust
Methods to Lower the Dust Exposure of Bag Machine Operators and Bag Stackers
Summary of NIOSH Research Completed on Dust Control Methods for the Surface and Underground Drilling
Page last reviewed: May 1, 2017
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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