DEVELOPMENT OF COAL DRY BENEFIClATTON TECHNOLOGY WITH AIR-DENSE MEDIUM FLUIDIZED BED

摘要

This paper analysed the fluidizing performance and density uniform stability of vibration fluidized bed. The experimental results in 2000mm × 80mm × 200mm model apparatus showed that the vibration fluidized bed can efficiently beneficiate fine coal of size <6mm, the beneficiation Lower limit is 0. 5mm, the Ep value is 0. 07. A double - density fluidized bed was formed by which the bed structure was specially designed with a pyramidal part. It can efficiently turn out three products according to density.