降噪

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

该消声装置结构简单,对主要通风机阻力损失影响小,防尘、防潮及噪效,可广泛应用于煤矿主要通风机消声噪。

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

通过对煤矿锅炉噪声治理和烟尘治理,阐述了通过采用隔声罩和机械通风冷却设施对引风机和鼓风机噪治理。