Self cleaning bearing assembly for use in a dehydrator or washer for particulate solids
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United States of America Patent
Stats
-
Oct 22, 2002
Grant Date -
Aug 15, 2002
app pub date -
Feb 13, 2001
filing date -
Feb 13, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
A self cleaning bearing assembly for use in a dehydrator washer for particulate solids which comprises a feed reservoir for water and particulate solids and an inclined main screw conveyor having a projecting shaft lower end portion submerged in the reservoir. The bearing assembly comprises a housing having an end cap at one end and an opening at the opposite end in communication with the interior of the feed reservoir. The housing has its longitudinal center line coincident with the main screw conveyor and a stub shaft mounted on the end cap of the bearing assembly also has its axis coincident with that of the main crew conveyor and its shaft. The projecting lower end portion of the main conveyor shaft and the stub shaft are disposed with the stub shaft in radially spaced relationship within the main shaft and a sleeve bearing is disposed in the radial space between the stub shaft and the main shaft. A short auxiliary screw conveyor section disposed on the projecting end portion of the main conveyor shaft acts to clear solids from the sleeve bearing in a sweeping action whereby to maintain the same in a clean condition for lubrication by the liquid from the reservoir.
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