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、防潮及噪效果明显,可广泛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尘治研究,阐述了通过采隔声罩机械通风冷却设施对引风机鼓风机噪治。