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Mining Publication: Reducing Respirable Dust Concentrations at Mineral Processing Facilities Using Total Mill Ventilation Systems
Keywords: Dust control Minerals Respirable dust
Original creation date: January 1993
Authors: AB Cecala, GW Klinowski, ED Thimons
Report of Investigations - January 1993
Download PDF Document (0.84 MB)
NIOSHTIC2 Number: 20025028
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9469, 1993 Jan; :1-11
The U.S. Bureau of Mines has designed and evaluated total mill ventilation systems at two different mineral processing operations. Both systems have proven very effective at reducing respirable dust levels throughout the mill in a cost-effective manner. A 25,500-cfm system installed at a clay processing mill provided approximately 10 air changes per hour. This system reduced respirable dust concentrations by approximately 40 pct throughout the mill building. The second evaluation was performed at a silica sand operation. Tests were performed with 50,000 and 100,000 cfm of ventilation to the mill building, corresponding to 17 and 34 air changes per hour. Average mill-wide respirable dust reductions were 36 and 64 pct, respectively. Not only did these systems reduce respirable dust concentrations and increase visibility throughout the mills, they were also easy to install and required minimal maintenance. A total mill ventilation system provides a general purging of the mill air; the system should be viewed as a supplemental technique to assist other dust control systems in operation.
Image of publication Reducing Respirable Dust Concentrations at Mineral Processing Facilities Using Total Mill Ventilation SystemsReport of Investigations - January 1993
Download PDF Document (0.84 MB)
NIOSHTIC2 Number: 20025028
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9469, 1993 Jan; :1-11
See Also
Control of Respirable Dust
Dust Underfoot: Enclosed Cab Floor Heaters Can Significantly Increase Operator's Respirable Dust Exposure
The Effects of Water Spray Placement for Controlling Respirable Dust and Face Methane Concentrations
Evaluation of the Approach to Respirable Quartz Exposure Control in U.S. Coal Mines
Improved Drill Shroud Capture of Respirable Dust Utilizing Air Nozzles Underneath the Drill Deck
Improving Silica Dust Control Through Targeted Research
Laboratory Testing To Quantify Dust Entrainment During Shield Advance
An Overview of Fundamental and Emerging Technologies to Monitor and Control Respirable Dust in Underground Coal Mines in the United States
Performance of a Light Scattering Dust Monitor at Various Air Velocities: Results of Sampling in the Active Versus the Passive Mode
Research by NIOSH for Controlling Respirable Dust and Methane Gas on Continuous Miner Faces
Page last reviewed: September 21, 2012
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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