Abstract: In order to solve the problems of poor dehydration effect and large volume of the existing wet dust collector for mine,a wet vortex integrated dust collector composed of special impeller,anti-blocking nozzle,guide vane,explosion-proof motor,first-stage dehydrator and second-stage dehydrator was developed. Through the process of five-fold dust capture and threefold dehydration,the high purification of dusty airflow is realized. The dust collector integrates three effects of high-energy air suction,cyclone dust capture and two-stage dehydration,and the special impeller is used as both the power component and the atomizing and dust collection component,so the overall structure is extremely simple and integrated. Using the experimental platform for testing the purification performance of the dust collector,the dust removal and dehydration performance tests of wet dust collector were carried out,the dehydration effect of dust collector under different water consumption and dust removal effect of different concentrations were studied. The results show that with the increase of water consumption and dust concentration,the dust removal efficiency of the dust collector first increases and then decreases,and when the water consumption is 1 m 3 / h,the average dust removal efficiency of total dust and breathing dust is the best,reaching above 95. 8% and 88. 6% respectively. With the increase of water consumption,the dehydration efficiency of the dust collector showed an increasing trend, and the average dehydration efficiency reached over 95. 5%. The study results can provide a theoretical basis for the further popularization and application of the developed wet vortex integrated dust collector.

Key words: dust prevention and control,wet dust collector,dust removal efficiency,dehydration efficiency