Heating – With work cooling structure – Entering and leaving work exchange heat
Patent
1979-07-20
1981-04-07
Davis, Albert W.
Heating
With work cooling structure
Entering and leaving work exchange heat
165107R, 432121, 432139, 198561, 198822, 198952, 414152, 414157, F27D 1300, F27D 1502
Patent
active
042603714
ABSTRACT:
Modular, conveyor-type heat exchange apparatus is provided which is especially adapted for handling large volumes of shale rock and preheating incoming raw shale using hot, spent shale from a commercial processing operation. The apparatus includes an elongated heat exchange zone having a plurality of separate, interconnected, insulated modules; two superposed, oppositely moving sections of an endless conveyor pass through the zone and respectively support hot and raw shale material for heat exchange therebetween. The conveyor includes spaced, interconnected, shale-supporting triangular elements which facilitate gas flow between the conveyor sections in the heat exchange zone. In preferred forms, the modules present restricted inlet and outlet throats, and are provided with slow moving fans for circulation of air currents between the conveyor sections without creation of chimney-like drafts along the length of the modules.
REFERENCES:
patent: 699278 (1902-05-01), Zwoyer
patent: 1077918 (1913-11-01), Seck
patent: 1544624 (1925-07-01), Arango
patent: 1867772 (1932-07-01), Smalley
patent: 1938581 (1933-12-01), Cope et al.
patent: 2093061 (1937-09-01), Wallace
Davis Albert W.
Shale Oil Science & Systems, Inc.
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