Countercurrent solid-to-solid heat transfer apparatus and method

Details Countercurrent solid-to-solid heat transfer apparatus and method Countercurrent solid-to-solid heat transfer apparatus and method

1979-03-28

1980-06-17

Richter, Sheldon

Heat exchange

Regenerator

Checker brick structure

165 84, 165111, 209285, 366187, 432118, F28C 310

Patent

active

042079438

ABSTRACT:
Apparatus for transferring heat between solid particles includes a rotatable cylindrical drum which includes plates mounted on the interior surface of the drum wall to extend inwardly thereof. Also included is an elongate vibratory screen disposed within the drum but supported independently of the drum. The screen includes a plurality of apertures of generally uniform size and is inclined with respect to the horizontal. A plurality of vanes are located underneath the screen to guide material falling from the screen toward one end of the drum. A feed bin is provided to introduce a first granular material onto the screen near said one end of the drum, with the particles of such granular material generally being of a size greater than the size of the apertures in the screen. A second feed bin is provided to introduce a second granular material into the other end of the drum, with the particle size of the second granular material generally being less than the size of the apertures. When the drum is rotated, the second granular material is carried from the bottom of the drum toward the top thereof where it then falls from the blades onto the screen. As the screen is vibrated, the first granular material is caused to move downwardly on the screen and the second material is caused to sift through the apertures in the screen to be carried by the blades back up onto the screen. In this manner, the first and second materials are placed in contact with one another to enable transfer of heat therebetween.

REFERENCES:
patent: 2310603 (1943-02-01), Taylor
patent: 2592783 (1952-04-01), Aspegren
patent: 4038021 (1977-07-01), Benson
patent: 4127388 (1978-11-01), Maczko et al.

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