掘进工作面高倍数泡沫降尘器研制与应用

Research and Application on High-expansion Foam Dust Control Agents in Mine Heading Roadway

为了提高掘进时的降尘效果,提出了兼具水喷雾和化学抑尘优点的高倍数泡沫降尘器。通过对该降尘器的性能分析,得到降尘器的最佳发泡风压为0.55 MPa;最佳泡沫试剂浓度为2.5%。通过现场实践表明,该泡沫降尘技术对全尘的降尘率是传统水雾降尘技术的2.3倍,对呼吸性粉尘的降尘率是传统水雾降尘技术的2.8倍,降尘效果十分显著。

In order to improve the effect of dust during excavation, the article put forward the highexpansion foam dust control agents that has advantages of both chemical dust suppression and water spray. By analyzing the performance of the dust control agents, we get the best foaming wind pressure of dust control agents is 0.55 MPa and the best bubble reagent concentration is 2.5% .Through site experiments showed that the foam dust technology to all dust of dust rate is 2.3 times than the traditional water mist dust technology, and to respiratory dust of dust rate is 2.8 times than the traditional water mist dust technology.The dust effect is significant.