A research of a new dust collector device
|關鍵字:||文氏洗滌器;旋風集塵器;袋式集塵器;Venturi scrubber;Cyclone;Bag-house dust collectors|
本研究設計的新型集塵洗滌設備是結合文氏洗滌器和旋風集塵器之概念，其中與傳統文氏洗滌器設計的不同之處，主要在於放大了文氏管喉部的尺寸，使本集塵洗滌設備在操作時可產生較小的壓損。而研究結果顯示本集塵洗滌設備在廢氣的處理風量為50 CMM 時，壓損只有200 mmaq。
Traditional methods to clean bag-filters include mechanical oscillation, back-washing, and pulse-jet cleaning. The pulse air backwashing method is the most usually used to remove dust attached to the filter. However, this cleaning procedure creates noise increment of about 80–110 dB, which is its major drawback. In addition, increasing public environmental awareness and demand for living quality have led to an increasing number of cases involving issues of noise and pollution. The proposed design eliminates the noise associated with the pulse-jet filter-cleaning process and filter bag replacement costs. In this study, a new type dust cleaning device was designed which combined by a wet scrubber–Venturi scrubber and a cyclone. Besides, decreasing the pressure during operation was achieved by enlarging the venturi throat compared to the traditional one. As the experimental results show, over 99% of particle size larger than 1 m can be removed by the present device which had the same removal efficiency as the traditional bag-filters. Therefore, the equipment studied in this work offers many advantages over traditional designs in terms of the elimination of backwashing noise and the cost of replacing the filter bag.