火力发电厂钢球磨煤机筒体噪声控制  

Noise control for the cylinder of tube mill in thermal power plant

作　　者：陈荐[1] 符慧林[1] 宁佐阳[1] 聂勤俭 葛荣根 

机构地区：[1]长沙电力学院动力工程系,湖南长沙410077 [2]湖南省耒阳电厂,湖南耒阳421800

出　　处：《中国电力》2003年第11期82-84,共3页Electric Power

摘　　要：分析DTM350/600型钢球磨煤机噪声特性, 研究开发出用于提高隔声结构、性能的氧化锌晶须增强阻尼涂料。利用吸声、隔声、阻尼减隔振的综合降噪原理,研制了新型多层结构隔声套。该隔声套应用于湖南省耒阳电厂磨煤机筒体的噪声治理,使磨煤机噪声降低了24.5dB(A),取得了较满意的降噪效果。The noise characteristics of DTM350/600 tube mill in thermal power plant were analyzed in the paper. A kind of damping coating reinforced by zinc oxide whisker used for improving the property of noise insulation was developed. Based upon the comprehensive de-noising principle of sound absorption, insulation and damping, a new-type noise insulation slipcover applied to control the noise of the cylinder of tube mill was designed. The noise insulation slipcover has been put into use in Leiyang Power Plant and make the noise level of tube mill decrease by about 24.5 dB.

关 键 词：钢球磨煤机 噪声 氧化锌晶须 阻尼涂料 隔声套 

分 类 号：TB535[理学—物理] TM621.2[理学—声学]