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丰镇发电厂1、2号锅炉冷风道出现噪声强、振动大的现象，经测试及分析后，找出原因，提出减振降噪的措施。改造后, 噪声普遍下降了6～9 dB，经过1 a多的生产运行，效果良好。
Fengzhen Power Plant No. 1 and No. 2 boiler air duct appeared strong noise, large vibration phenomenon, after testing and analysis, find out the reason, put forward measures to reduce vibration and noise reduction. After the transformation, the noise generally dropped by 6 ~ 9 dB. After 1 year of production operation, the effect was good.