Fluidized bed classification method and fluidized bed classification apparatus

摘要

The present invention relates to solid combustibles such as municipal waste, solidified fuel (RDF), waste plastic, waste FRP, biomass waste, automobile waste, waste oil and other solid fuel containing incombustible components such as coal. The present invention relates to a fluidized bed classification method that can be applied to a fluidized bed furnace system in which an incombustible material needs to be extracted together with a fluidized medium. In the fluidized bed classification method, the mixture (A) is charged into the coarse classification part (1) partitioned from the fine classification part (2) by the partition wall (3), and fluid air is supplied to the coarse classification part (1). The coarse classification part (1) removes relatively large foreign matter (L) and foreign matter (H) having a large specific gravity, and the mixture from which the foreign matter (L, H) has been removed mainly passes above the partition wall (3). The fine classification part (2) leads to the fine classification part (2), and while supplying the flowing air, the foreign substance (S) is further removed by the fine classification part (2).