风动矽轮机在机械工业中有广泛的用途。我厂多年来用其清理结构件以及铸件的飞边、毛刺,特别是50年代以后,铁路大量采用高锰钢辙叉,风动砂轮机就成为主要的加工机具。我厂现有风动砂轮机30多台,集中使用于铸钢车间,其余分布在各个车间。不但使用风动砂轮机的车间环境受刺耳的噪声污染,距声源300m以外的厂区同样受到噪声污染,如较长时间在这种条件 Wind turbine has a wide range of uses in the machinery industry. For many years, our factory has used it to clean the structural parts and the burrs and glitches of the castings. Especially after the 1950s, the railways used a large number of high-manganese steel frogs and the wind-driven grinding wheel became the main processing machine. I existing plant more than 30 pneumatic grinder, concentrate on the use of steel workshop, and the remaining distribution in various workshops. Not only the workshop environment with wind-driven grinding machine is contaminated by jarring noise, but also the noise pollution from the factory 300m away from the sound source, such as for a long time under such conditions