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Development of a roof bolter canopy air curtain for respirable dust control

机译:研发用于可控制粉尘的顶棚式天蓬气幕

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摘要

Testing of the roof bolter canopy air curtain (CAC) designed by the U.S. National Institute for Occupational Safety and Health (NIOSH) has gone through many iterations, demonstrating successful dust control performance under controlled laboratory conditions. J.H. Fletcher & Co., an original equipment manufacturer of mining equipment, further developed the concept by incorporating it into the design of its roof bolting machines. In the present work, laboratory testing was conducted, showing dust control efficiencies ranging from 17.2 to 24.5 percent. Subsequent computational fluid dynamics (CFD) analysis revealed limitations in the design, and a potential improvement was analyzed and recommended. As a result, a new CAC design is being developed, incorporating the results of the testing and CFD analysis.
机译:由美国国家职业安全与健康研究所(NIOSH)设计的屋顶锚杆雨棚气帘(CAC)的测试经过了多次迭代,证明了在受控实验室条件下的成功除尘性能。 J.H.采矿设备的原始设备制造商Fletcher&Co.通过将其纳入屋顶锚杆机的设计中进一步发展了这一概念。在目前的工作中,进行了实验室测试,显示出粉尘控制效率为17.2%至24.5%。随后的计算流体动力学(CFD)分析揭示了设计的局限性,并分析并建议了可能的改进。结果,正在开发一种新的CAC设计,其中包含测试和CFD分析的结果。

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