降噪

The new muffler device has simple structure,it has lesser effect on the resistance loss of chief ventil...

该声装置结构简单,主要风阻力损失影响小,防尘、防潮及噪效果明显,可广泛应用于煤矿主要风声噪。

The harnessing of noise and smust to boiler are studied,pugging and ventilation are adopted to harnest noise of fan.

煤矿锅炉噪声治理和烟尘治理研究,阐述了采用隔声罩和械风冷却设施引风和鼓风噪治理。