Particle separation and drying apparatus
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United States of America Patent
Stats
-
Oct 24, 1995
Grant Date -
N/A
app pub date -
Oct 13, 1993
filing date -
Oct 20, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus which performs solids particles separation from a liquids/solids slurry, and subsequent drying of such solids particles, within a single enclosure. Further processing functions, such as reslurry washing, plug washing, crystal growth and other reactions, can also be carried out within that single enclosure. The single enclosure comprises a partly perforated centrifuge drum which can be rotated about a vertical axis at a fast speed at which the centrifugal effects on material in the drum are substantial so that partly dried solids collect in a substantially cylindrical form on the side wall of the drum, and a slow speed at which the centrifugal effects on material in the drum are negligible; a stripping mechanism which is displaceable within the drum, when the drum is rotated at slow speed, for dislodging solids which have been built up on the side wall of the drum during rotation at high speed; and means for heating at least a bottom part of the drum on which partly dried solids collect when dislodged by the stripping mechanism from the side wall of the drum. The solids can themselves thus be heated, or otherwise processed, to cause evaporation therefrom of any remaining liquid.

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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
THOMAS BROADBENT & SONS LIMITED | HUDDERSFIELD WEST YORKSHIRE HD1 3EA |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Grimwood, Geoffrey C | Upperthong, GB2 | 2 | 34 |
Grimwood, Geoffrey L | Holmfirth, GB2 | 7 | 72 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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