降低气流粉碎过程中噪声强度的研究

STUDY ON THE NOISE REDUCTION OF JET CRUSHING

主要报导了超音速气流超细粉碎过程中噪声产生的原因、影响因素及降低噪声强度所采取的技术原理途径与措施。研究结果表明 :采用CSQ消声装置完全可以将超音速气流粉碎过程中产生的噪声 130dB(A)降低到国家规定的标准 85dB(A)之下。该装置结构简单 ,既能消除噪声 ,又便于产品卸料 ,拆卸清理方便 ,综合性能良好。

This paper reports mainly the cause of producing the noise during ultrasonic jet crushing,the influencing factors as well as technical principle and measures of reducing the noise.The research result indicatd that the noise of ultrasonic jet crusher could be reduced under the national standard,using the CSQ muffler.The equipment is characterized by compact structure,convenient departing and cleaning,excellent comprehensive performance.