Abstract: Based on the traditional wet dust collector with the shortcomings of low dust removal efficiency and high resistance in the application of dust removal system for underground mine， a mobile wet vibrating string cyclone dust collector， which is well adapted for dust removal system of mine， was researched. The structural， working principle and dust collection mechanism of the dust removal device were introduced， and experimental research on its dust removal efficiency and resistance characteristics were carried out. The analysis of dust removal mechanism showed that the dust collector has made use of the theory of spray and dust suppression， the theory of vibrating string trapping and the theory of swirling dust removal. Four stage dust removal technology including water mist， water droplet， water film and swirling makes the contact area between droplet and dust airflow wide， the contact time long， and the efficiency of dust collection high. The experimental results showed that considering the factors of dust removal efficiency and resistance， the optimal wind speed is 10~12 m/s， which realized the total dust removal efficiency more than 98%， the respirable dust removal efficiency more than 96%， and the resistance less than 700 Pa. The dust removal system has broad application prospects in underground mine.

Key words: Mine dust removal, Mobile type, Wet vibrating string cyclone dust removal, Dust collection mechanism