工矿企业的噪声控制一般采用三种途径,一是消除和减弱噪声源,如改变机器的工艺结构和工作机制,降低机器本身产生的噪声;二是在噪声控制途径上控制噪声传播,如采用吸声、隔声、消声器、阻尼和减震等措施;三是在采用上述办法有困难和不经济的情况下,采用个人防护措施。 个人的防 Noise control of industrial and mining enterprises generally use three ways, one is to eliminate and reduce the noise source, such as changing the machine’s process structure and working mechanism to reduce the noise generated by the machine itself; the second is to control the noise control noise transmission, such as the use of suction Sound, sound insulation, muffler, damping and damping measures; third is the use of these measures in difficult and uneconomical circumstances, the use of personal protective measures. Personal defense