掘进机高压降尘喷雾装置的设计与应用

Design and application of high pressure spraying device for falling dust of heading machine

针对因掘进机机身外喷雾水系统压力不足导致降尘效果不理想的问题,改造设计了一种掘进机高压降尘喷雾装置。该装置通过高压风流与水流的混合,引射出雾化效果好、覆盖面积大的高速水雾粒,大大地降低了工作面的粉尘浓度。实际应用结果表明,该装置降尘效果显著,在距掘进工作面10m处的进风、回风侧风流中总粉尘降尘效率均在80%以上。

For problem of bad effect of {ailing dust because of insufficient pressure of water spraying system outside heading machine fuselage, a high pressure spraying device for falling dust of heading machine was designed. The device mixes high pressure airflow with waterflow to inject water mist particle with good atomization effect and large covering area at a high speed, and can greatly reduce the dust concentration on working face. The practical application shows that the effect of falling dust of the device is remarkable, and total dusting efficiency is above 80% in inlet and return airflow at ten meters away from tunneling working face.