B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
183/22
B01D 53/08 (2006.01) B01D 53/06 (2006.01)
Patent
CA 1036956
APPARATUS FOR COUNTERCURRENT GAS-SOLID CONTACT ABSTRACT OF THE DISCLOSURE Apparatus for contacting a flowing gas stream with a countercurrently moving bed of granular solid material com- prises an enclosed chamber having a solids entry and gas dis- engagement section, a solids bed section, and a solids dis- charge section. A plurality of baffles are disposed within the chamber and define stationary troughs each having down- wardly converging side walls. The troughs are disposed in superposed relation at the bottom of the bed section, causing granular solid material to descend from trough to trough as it moves from the bed section toward a lower solids discharge section of the apparatus. The troughs cooperate to define a plurality of openings or passages through which the gas stream may flow into or out of the bed section of the chamber, as well as to achieve substantially uniform flow of the granular solid material through the bed section. The lowermost trough has a closed bottom and receives predetermined quantities of solids from the next higher or preceeding trough. The lower- most trough is movable from a first position, in which it receives the predetermined quantity of solids from the preceeding trough, to a second position where it dumps the solids into the discharge section of the chamber. The enclosed chamber is also provided with gas inlet and outlet means disposed to achieve the desired distribution and flow of gas through the solids bed section, and is provided with means for introducing solid material into the bed section and for discharging solid material from the discharge section.
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