Patent ID: 6016863
Filing Date: 2000-01-25
Classification: B01J,F28D,F28F

Abstract:
An apparatus for carrying out a process, comprising:a reservoir provided with upwardly directed tubes accommodated, at top and bottom ends thereof, in tube plates, the tubes being in open communication with a top box and a bottom box;at least one distribution plate being arranged in the bottom box for supporting a fluidized bed of granular material maintainable in a quasi-stationary, fluidized condition by a medium to be treated or heated which is supplied via the bottom box and which flows through the tubes; andmeans for feeding fluidized bed particles back from the top box, in the form of a downcomer arranged outside the reservoir and connected, at a top end thereof, to the top box by a separating device, the bottom end of the downcomer being communicable, through switching on and off, with the bottom box of the reservoir, wherein the connecting line between the bottom end of the downcomer and the bottom box of the reservoir provided with tubes consists substantially of at least two independent vertically aligned line sections between which an expansion bellows is arranged, while a top line section is closably connected to the downcomer; andwherein in a bottom line section an inclined deflecting plate is arranged for deflecting the flow of fluidized bed particles in the direction of a connecting stub for the bottom box of the reservoir.