Effect of scraper movement on the separation performance of air dense medium fluidized bed

Abstract

This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Abstract：Experimental studies on the influence of scraper movement on the fluidization of air dense-medium fluidized bed (ADMFB) have been conducted. The maximum bed pressure drop is about 3% when the scraper speed changes from 0 to 0.5m/s. The minimum fluidized velocity U mf decreases as the scraper speedincrease. At the same time, the bed density only declines by 3.7%, and the density standard deviation decreases significantly. which is mainly caused by the horizontal motion of the medium. The separation tests indicated that the most appropriate scraper speed is between 0.1m/s and 0.3m/s and it was reasonable to move the scraper at the appropriate rate to get the better separation performance. A C C E P T E D M A N U S C R I P T