Dewatering device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 8, 2002
Grant Date -
N/A
app pub date -
May 4, 2001
filing date -
Nov 6, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus is disclosed for dewatering aqueous suspensions including a pair of rotatable rolls forming a nip therebetween, so that the aqueous suspension can pass downwardly through the nip and be dewatered by removing a filtrate from the suspension, and the dewatered suspension can pass downwardly from the nip, at least one of the rolls being liquid permeable, and at least one screen adjacent to the roll and disposed below the nip, the screen is separated from the roll by a predetermined distance and extends along its length, the predetermined distance being a sufficient distance so that a film of filtrate on the roll passes between the roll and upper end of the screen on one side of the screen and the dewatered suspension passes on the other side of the screen so that the filtrate is prevented from contacting the dewatered suspension below the nip.
First Claim
Other Claims data not available
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International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 13 Citation Count
- B01D Class
- 55.50 % this patent is cited more than
- 23 Age