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- Equipment, tools, and parts:
- Drills
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Results 1 - 10 of 28
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3/1/2011 - Peer reviewed journal articlesField tests confirm that an air-blocking shelf installed in the inside perimeter of a blasthole drill shroud substantially improves dust control. This modification reduced respirable dust by 66%–81% in the immediate vicinity of the shroud...
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7/21/2015 - Unpublished documents and reportsA feature story about new equipment and protocol for drilling large-diameter rescue boreholes.
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12/1/2012 - Non-peer reviewed journal articlesThis paper reports results of field tests of the device conducted at five underground coal mines. Noise reduction was assessed by comparing the operator’s noise exposure during drilling with and without the drill bit isolator.
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1/1/2012 - Peer reviewed journal articlesThis paper documents the evolution of the bit isolator and chuck isolator. Laboratory testing confirms that production bit and chuck isolators reduce the A-weighted sound level generated during drilling by 3.7 to 6.6 dB.
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1/1/2010 - Peer reviewed journal articlesThis study tests the ability of a new air nozzle system, located under the drill deck shroud, to improve the dust capture of the drill deck shroud.
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11/1/2009 - Conference papersNIOSH is developing bit and chuck isolators to reduce vibration, and thus noise radiation of the drill steel, with the longer-term goal of reducing roof bolting machine operator noise exposure.
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2/1/2009 - Conference papersThis paper presents the results of laboratory testing to determine if the installation of a horizontal air blocking shelf around the inside perimeter of a surface mining drill deck will improve dust capture.
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12/1/2008 - Peer reviewed journal articlesThis paper describes a recent research project initiated by NIOSH which identified improvement of the drill shroud design as one of its main objectives for reducing the exposure of surface miners to respirable dust.
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9/1/2008 - Peer reviewed journal articlesThe focus of this work is drill shroud dust leakage and the relationships of various drill parameters on this leakage.
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9/1/2008 - Technology NewsResearch conducted by NIOSH has focused on producing noise treatments to reduce noise generated by the Roof Bolting Machine. A drill steel enclosure for reducing roof bolting machine drilling noise has been developed as an engineering control.
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Content source: National Institute for Occupational Safety and Health, Mining Program