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Laboratory Evaluation of a Prototype Local Exhaust Ventilation System on a Terex Cold Milling Machine at Terex Roadbuilding, Oklahoma City, Oklahoma

机译：俄克拉荷马州俄克拉荷马市特雷克斯公路建筑特雷克斯冷铣刨机原型局部排气通风系统的实验室评估

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In August 2011, NIOSH researchers and the Silica/Milling-Machines Partnership coordinated by the National Asphalt Pavement Association (NAPA) conducted laboratory testing of a prototype local exhaust ventilation (LEV) system on a Terex PR600c cold milling machine. The testing was conducted indoors at the Terex Roadbuilding manufacturing facility in Oklahoma City, Oklahoma. All tests were conducted on a stationary milling machine with the cutter drum spinning and belts stationary, and without any reclaimed asphalt pavement (RAP) moving through the system. Terex engineers used cardboard and plastic to simulate the level of gap-seal to be provided in a true production machine factory-equipped with an LEV control system. Smoke and tracer gas were used as surrogates for silica dust to evaluate capture efficiencies of the dust emission-control system in the cutter drum housing of the machine. Smoke was used as an initial qualitative test to visually check for leaks. Sulfur Hexafluoride (SF6) was used to quantitatively evaluate capture efficiency of tracer gas released in the cutter drum housing of the machine. Two independent analytical instruments were used to measure the resulting SF6 concentrations in the LEV exhaust duct, a Bruel & Kjaer (B&K) photoacoustic analyzer and a Miran SapphIRe infrared spectrometer.

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Hammond, D. R.; Mead, K. R.; Trifonoff, N.; Shulman, S. A.;
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年度 2011
页码 1-24
总页数 24
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Exhaust ventilation ; Terex cold milling machine ; Oklahoma ; Methodology ; Tracer gas ; Control technology ; Smoke evaluations ; Ventilation ; Exhaust;

机译：排气通风;特雷克斯冷铣刨机;俄克拉荷马州;方法;示踪气体;控制技术;烟雾评估;通风;排气;

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Laboratory Evaluation of a Prototype Local Exhaust Ventilation System on a Terex Cold Milling Machine at Terex Roadbuilding, Oklahoma City, Oklahoma

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