Method and apparatus for processing bed material in fluidized bed
reactors
    141.
    发明授权
    Method and apparatus for processing bed material in fluidized bed reactors 失效
    流化床反应器床床处理方法和装置

    公开(公告)号:US5540894A

    公开(公告)日:1996-07-30

    申请号:US66277

    申请日:1993-05-26

    申请人: Timo Hyppanen

    发明人: Timo Hyppanen

    摘要: Particles in a fluidized bed reactor (e.g. a circulating fluidized bed reactor) are discharged from the reactor chamber and then cooled (heat is recovered from them) in a processing chamber. This is accomplished in a particularly advantageous way by discharging the particles from the reactor chamber at a first level (e.g. through a non-mechanical seal or a classifying wall) into a lifting chamber. Upwardly flowing gas in the lifting chamber entrains the particles and lifts them into the processing chamber. After processing, the particles in the processing chamber are returned to the reactor chamber at level higher than the first level, at which point the pressure in the processing chamber is higher than the pressure in the reactor chamber. The particles may be classified in the lifting chamber by utilizing fluidizing gas to transport solid particles smaller than a predetermined size to the processing chamber while discharging larger particles from the bottom of the lifting chamber.

    摘要翻译: 流化床反应器(例如循环流化床反应器)中的颗粒从反应器室排出,然后在处理室中冷却(从它们回收热量)。 这通过将来自反应器室的颗粒在第一水平(例如通过非机械密封或分级壁)排放到提升室中而以特别有利的方式实现。 提升室中的向上流动的气体夹带着颗粒并将其提升到处理室中。 在处理之后,处理室中的颗粒以高于第一水平的水平返回到反应室,此时处理室中的压力高于反应器室中的压力。 通过利用流化气体将颗粒分类到提升室中,以将小于预定尺寸的固体颗粒输送到处理室,同时从提升室的底部排放较大的颗粒。