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July 2019
Volume 71    Issue 7

Performance of a new fan silencer prototype for auxiliary ventilation

Mining Engineering, 2019, Vol. 71, No. 7, pp. 96-98
Bhattacharyya, Sekhar; Calizaya, Felipe


ABSTRACT:

Noise-induced hearing loss (NIHL) is prevalent in mechanized underground mines. Federal regulations are often not complied with effectively. Miners are also prone to ignoring administrative guidelines and/or personal protective equipment for hearing conservation. As a result, quality of life among experienced miners plummets while occupational risks increase at workplaces. This research focused on auxiliary fans used in underground mines. These fans work at high rotational speed and generate extremely high levels of noise in close proximity to miners. Silencers used are often of little effect due to poor maintenance. A new silencer is tried in the laboratory with the objective of easy maintenance and resulting reduction of noise exposure for miners.



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