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,对主要通风机的阻力损失影响小,防尘、防潮及果明显,可广泛的应用于煤矿主要通风机的消声。

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

通过对煤矿锅炉声治理和烟尘治理的研究,通过采用隔声罩和机械通风冷却设施对引风机和鼓风机的治理。