Lowering Respirable Dust At An Iron Ore Concentrator Plant Through Improved Ventilation Practices

Cecala, A. B.; Zimmer, J. A.; Colinet, J. F.; Timko, R. J.

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Lowering Respirable Dust At An Iron Ore Concentrator Plant Through Improved Ventilation Practices

2006
By Cecala, A. B. ; Zimmer, J. A. ; Colinet, J. F. ; ...
Source: Proceedings of the 11th U.S./North American Mine Ventilation Symposium, University Park, Pennsylvania, June 5-7, 2006. Mutmansky JM, Ramani RV. eds., London, U.K.: Taylor & Francis Group, 2006 Jun; :189-196

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Personal Author:

Cecala, A. B. ; Zimmer, J. A. ; Colinet, J. F. ; Timko, R. J.

Cecala, A. B. ; Zimmer, J. A. ; Colinet, J. F. ; Timko, R. J. Less -
Corporate Authors:

Pittsburgh Research Laboratory (National Institute for Occupational Safety and Health)
Conference Authors:

U.S./North American Mine Ventilation Symposium (11th : 2006 June 5-7 : University Park, PA)
Description:

A cooperative research effort was established between the Tilden Mining Company LC, the United Steelworkers of America, and the National Institute for Occupational Safety and Health to lower respirable dust levels in an iron ore grinding and concentrator plant. This cooperative effort involved three field studies to evaluate different techniques to lower respirable dust levels. The greatest impact on lowering respirable dust concentrations throughout this facility was achieved through ventilation changes. The most significant improvement was realized by changing the ventilation profile throughout the entire facility. The ventilation to this grinding and concentrator facility was provided by approximately 40 roof fans operating in either the intake or exhaust mode. The operation of these fans was significantly changed in an attempt to pro-vide more of a directional flow pattern throughout the facility, as well as to more closely balance the intake and exhaust air volume. This change accounted for a 31 pct reduction in respirable dust levels in the primary grinding area of the mill. Another successful modification was to improve the sealing of a reclaim tunnel to the outside and by barricading the access point from the reclaim tunnel to the concentrator plant. This minimized the dust liberated in the conveyor tunnels from traveling through the reclaim tunnel and into the plant. These two modifications illustrate the impact that improvements in ventilation can have on lowering respirable dust concentrations in iron ore processing facilities.
Subjects:

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Mining`
Source:

Proceedings of the 11th U.S./North American Mine Ventilation Symposium, University Park, Pennsylvania, June 5-7, 2006. Mutmansky JM, Ramani RV. eds., London, U.K.: Taylor & Francis Group, 2006 Jun; :189-196
Document Type:

Book Chapter
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Conference Publications
Collection(s):

Stephen B. Thacker CDC Library collection
Main Document Checksum:

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urn:sha256:30bc873c4b79c31b9f8f5bfe4daf663fb8318d19b3052a2e2a6a78fb55b4e227
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https://stacks.cdc.gov/view/cdc/9070/cdc_9070_DS1.pdf
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Lowering Respirable Dust At An Iron Ore Concentrator Plant Through Improved Ventilation Practices

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