GB919095A - Sludge centrifuge - Google Patents
Sludge centrifugeInfo
- Publication number
- GB919095A GB919095A GB14292/61A GB1429261A GB919095A GB 919095 A GB919095 A GB 919095A GB 14292/61 A GB14292/61 A GB 14292/61A GB 1429261 A GB1429261 A GB 1429261A GB 919095 A GB919095 A GB 919095A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chamber
- valve
- liquid
- closed
- sludge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
- B04B1/10—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl
- B04B1/14—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl with periodical discharge
- B04B1/16—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl with periodical discharge with discharging outlets controlled by the rotational speed of the bowl
- B04B1/18—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl with periodical discharge with discharging outlets controlled by the rotational speed of the bowl controlled by the centrifugal force of an auxiliary liquid
Landscapes
- Centrifugal Separators (AREA)
Abstract
919,095. Centrifugal separators. SEPARATOR A.B. April 20, 1961 [April 20, 1960], No. 14292/61. Class 23. In a centrifuge having sludge openings 4 in the rotor body wall controlled by a slide valve 5 movable to close and open the openings 4 by respectively supplying and discharging operating liquid to and from a chamber 13 between the valve and the rotor body 1, the chamber 13 has a valve-controlled outlet passage whose inlet is spaced radially inwards from the chamber periphery so that operating liquid is retained in the outer peripheral part of the chamber when the outlet passage is open and the centrifuge is rotating. In the embodiment shown in Fig. 1, the chamber 13 is divided into upper and lower spaces 24 and 25 by a disc 26. During separation, drain holes 21 from the chamber 13 are closed by a spring-urged ring 18 and the valve 5 is closed by the centrifugal pressure of operating liquid supplied to the chamber 13 via channel 10, chamber 11 and channel 12 and retained therein at a level determined by an overflow outlet 14. When it is desired to discharge sludge the supply of liquid being separated and fed through the distributer 8 is interrupted and the supply of operating liquid increased to raise the liquid level from outlet 14 to a further outlet 15 so that liquid flows via a chamber 14a and a channel 16 to a space 17 above the ring 18 at a sufficient rate, despite leakage through drain holes 22, to fill the space 17 to the level of drain holes 23 with liquid, the centrifugal pressure of which opens the ring 18 against springs 19. Liquid in chamber 13 and space 25 then escapes through holes 21 and when the pressure on the valve 5 due to the sludge and liquid in the separation chamber 9 exceeds that in the space 24 the valve is opened to the extent allowed by spacers 26a on the disc 26. When a predetermined amount of sludge has been discharged the pressure on the valve 5 due to the liquid in the space 24 exceeds that in the chamber 9 and the valve is closed without loss of liquid in the chamber 9. The ring 18 is then returned to its shut position by either reducing or stopping the supply of operating liquid to the channel 10; in the latter event the supply is restored to its original rate when the ring 18 has closed. In a modification, Fig. 2 (not shown), which permits sludge discharge without interrupting the supply of liquid being separated, the operating liquid is directed to the spacer 24 by a conical disc secured to the bottom of the rotor body. In a further modification, Fig. 3, operating liquid is supplied to the chamber 13 via channel 12, chamber 11 and a stationary disc 32 either through a line 28 or through a line 29a and, during separation, valve 30 is closed and valve 31 opened, the level of the liquid in chamber 11 then being controlled by the opening 33 and the pressure below valve 5 maintaining it closed. To discharge sludge, valve 31 is closed and valve 30 opened so that liquid in chamber 11 passes through overflow 15, channel 14a and channel 16 to open ring 18. Liquid in chamber 13 then escapes through drain holes 21 and 35 to the level of holes 21 and the valve 5 is opened. When the sludge has been discharged the valve 5 is restored to its closed position by closing the valve 30 and opening valve 31. In another modification, Fig. 4 (not shown), drain holes 21 are provided at various radii and some of the holes may be plugged as desired to suit operating conditions.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE385860 | 1960-04-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB919095A true GB919095A (en) | 1963-02-20 |
Family
ID=20263018
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB14292/61A Expired GB919095A (en) | 1960-04-20 | 1961-04-20 | Sludge centrifuge |
Country Status (5)
Country | Link |
---|---|
US (1) | US3189267A (en) |
DE (1) | DE1432760C2 (en) |
DK (1) | DK117207B (en) |
FR (1) | FR1284378A (en) |
GB (1) | GB919095A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1215596B (en) * | 1964-02-07 | 1966-04-28 | Kyffhaeuserhuette Artern Veb M | Centrifugal drum with intermittent sludge discharge |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK108150C (en) * | 1962-02-23 | 1967-09-18 | Separator Ab | Sludge centrifuge. |
US3409214A (en) * | 1965-10-26 | 1968-11-05 | Alfa Laval Ab | Device for indicating the sludge level in sludge centrifuges |
US3403849A (en) * | 1965-12-15 | 1968-10-01 | Alfa Laval Ab | Sludge centrifuge with intermittent discharge |
DE1657269A1 (en) * | 1967-03-29 | 1971-02-11 | Alfa Laval Ab | Centrifuge with intermittent partial and full discharge of the rotor content |
DE2048429C3 (en) * | 1970-10-02 | 1973-09-13 | Westfalia Separator Ag, 4740 Oelde | Self-emptying centrifugal drum |
US4164317A (en) * | 1978-04-24 | 1979-08-14 | The De Laval Separator Company | Centrifuge with automatic sludge discharge |
DE3208808C2 (en) * | 1982-03-11 | 1984-11-22 | Westfalia Separator Ag, 4740 Oelde | Centrifuge with a self-cleaning centrifugal drum |
DE3240998C2 (en) * | 1982-11-06 | 1985-05-30 | Westfalia Separator Ag, 4740 Oelde | Centrifuge with a self-cleaning centrifugal drum |
SE444652B (en) * | 1984-09-06 | 1986-04-28 | Alfa Laval Separation Ab | CENTRIFUGAL SEAT MANOVER SYSTEM |
DE10102253C2 (en) * | 2001-01-19 | 2003-11-06 | Westfalia Separator Ag | centrifuge |
DE102008048934A1 (en) * | 2008-09-25 | 2010-04-01 | Gea Westfalia Separator Gmbh | Centrifuge with a self-cleaning centrifugal drum |
EP2774684B1 (en) * | 2013-03-06 | 2018-10-17 | Alfa Laval Corporate AB | A centrifugal separator |
US10654050B1 (en) | 2019-05-21 | 2020-05-19 | Empirical Innovations, Inc. | Centrifugal separators and separation methods employing multiple pistons and facilitating intermediate material ejection |
DE102022113293A1 (en) | 2022-05-25 | 2023-11-30 | Gea Westfalia Separator Group Gmbh | Self-draining separator |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2091329A (en) * | 1933-01-18 | 1937-08-31 | Nyrop Aage | Centrifugal separator |
US2126864A (en) * | 1935-02-27 | 1938-08-16 | Sharples Specialty Co | Centrifugal machine |
US2578484A (en) * | 1942-07-04 | 1951-12-11 | Nyrop Aage | Self-discharging sludge separator |
US2487364A (en) * | 1943-04-22 | 1949-11-08 | Superior Ab | Automatically opening separator bowl |
GB622451A (en) * | 1947-03-27 | 1949-05-02 | Heat Exchangers Ltd | Improvements in or relating to gas turbine plants |
US2551041A (en) * | 1947-12-29 | 1951-05-01 | Koefoed Hauberg Marstrand Og H | Valve device in centrifugal separators for separating sludge from liquids |
DE1003650B (en) * | 1953-08-29 | 1957-02-28 | Separator Ab | Control device for centrifuges with intermittent sludge discharge from the drum |
NL237164A (en) * | 1954-02-11 | |||
NL89960C (en) * | 1954-03-13 | |||
US2840302A (en) * | 1954-06-01 | 1958-06-24 | Westfalia Separator Ag | Centrifugal separators |
US2862659A (en) * | 1956-05-31 | 1958-12-02 | Nyrop Aage | Centrifugal separator |
NL237794A (en) * | 1958-06-16 |
-
1961
- 1961-03-17 DK DK113461AA patent/DK117207B/en unknown
- 1961-03-21 FR FR856265A patent/FR1284378A/en not_active Expired
- 1961-03-21 DE DE19611432760 patent/DE1432760C2/en not_active Expired
- 1961-03-29 US US99294A patent/US3189267A/en not_active Expired - Lifetime
- 1961-04-20 GB GB14292/61A patent/GB919095A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1215596B (en) * | 1964-02-07 | 1966-04-28 | Kyffhaeuserhuette Artern Veb M | Centrifugal drum with intermittent sludge discharge |
Also Published As
Publication number | Publication date |
---|---|
DE1432760C2 (en) | 1973-04-05 |
DK117207B (en) | 1970-03-23 |
DE1432760B1 (en) | 1970-04-16 |
FR1284378A (en) | 1962-02-09 |
US3189267A (en) | 1965-06-15 |
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