Abstract:

With the problems of coarse particles loss in the underflow,the poor separation effect and high ash slimes pollution in clean coal,liquid-solid fluidized bed separator for three products based on multiple sorting environments was proposed and designed.The working principle was introduced and laboratory separating tests were performed . The results show that liquid-solid fluidized bed separator for three products can broaden the separation size range ,reduce the ash of clean coal ,improve the coal recovery rate and get three products. With the significant economic and environmental benefits,provide a new idea to avoid the disadvantages of traditional liquid-solid fluidized bed .

Key words: coarse slime, liquid-solid fluidized bed for three products, hindered settling, working principle, equal settling ratio