公开(公告)号：US3851405A

公开(公告)日：1974-12-03

申请号：US34632373

申请日：1973-03-30

Applicant: AGENCY IND SCIENCE TECHN

Inventor： FURUKAWA K ,  KIDO C ,  TORII K ,  UYAMA H ,  TSUCHIYA T

IPC: B01J8/34 ,  B01J8/00 ,  F26B3/08 ,  F26B17/10

CPC classification number: B01J8/0055 ,  F26B3/08

Abstract: In a fluidizing device adapted to effect chemical reaction, heat transfer, material transfer, etc. and provided with a cyclone unit, a plurality of internal members made of bars or tubes are disposed at fixed intervals within a free board section formed above the fluidized bed. When the fluidizing device has the internal members disposed as described within the free board section, agglomerates of constituent particles of the fluidized bed which fly out of the fluidized bed come into contact with the said internal members, with the result that the kinetic energy possessed by each agglomerate of particles is gradually consumed in the course of several contacts and the vertical component of the speed vector of the agglomerate of particles flying toward the cyclone unit is proportionally decreased. Consequently, the amount of fine particles produced due to collision into the inner wall surface of the column is markedly decreased and at the same time the absolute amount of particles flying into the cyclone unit is decreased to a great extent.

Abstract translation: 在适于实现化学反应，热传递，材料转移等并且设置有旋风单元的流化装置中，由杆或管制成的多个内部构件以固定的间隔设置在形成在流化床上方的自由板部分内 。 当流化装置具有如在自由板部分内所述设置的内部部件时，流出流化床的流化床的组成颗粒的附聚物与所述内部部件接触，结果是具有的动能 颗粒的每个团块在几个接触过程中逐渐消耗，并且成比例地减小了飞向旋风单元的颗粒团聚体的速度矢量的垂直分量。 因此，由于与柱内壁面的碰撞而产生的微粒的量显着降低，同时飞散到旋风单元中的粒子的绝对量也大幅度降低。