Calciner screw construction
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United States of America Patent
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Feb 7, 1984
Grant Date -
N/A
app pub date -
Feb 18, 1982
filing date -
Feb 18, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a calciner of the type having a radiant heat source and a screw conveyor for advancing material to and through a calcining reaction chamber by means of mated, intermeshing, rotating conveyor screws, an improvement comprising scraper means attached to and rotating with the conveyor screws for preventing agglomeration of material in the conveyor and for absorbing heat and conducting the heat to the material and lifter means attached to and rotating with the conveyor screws for increasing exposure of the material to the radiant heat and for absorbing heat and conducting the heat to the material.
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