扇风机及其驱动装置是采矿工业中较大的噪声源。由于必须预防永久性听力损伤,减少噪声对环境的污染和提供良好的作业条件,研究扇风机的声学性能就显得日益重要了。近几年来,用于扇风机的降噪费用超过了几十年的费用。新型扇风机的声学和空气动力学性能是研究与开发中必须考虑的两个问题。 Fans and their drives are the larger sources of noise in the mining industry. As the need to prevent permanent hearing impairment, reduce noise pollution on the environment and provide good working conditions, the study of the fan fan acoustic performance is increasingly important. In recent years, noise reduction for fan fans has cost more than a few decades. The acoustic and aerodynamic properties of the new fan are two issues that must be considered in research and development.