US3825177A - Self-dumping drum centrifuge for the clarification of liquids,equipped with a paring disk for removing the clarified liquid under pressure - Google Patents
Self-dumping drum centrifuge for the clarification of liquids,equipped with a paring disk for removing the clarified liquid under pressure Download PDFInfo
- Publication number
- US3825177A US3825177A US00350279A US35027973A US3825177A US 3825177 A US3825177 A US 3825177A US 00350279 A US00350279 A US 00350279A US 35027973 A US35027973 A US 35027973A US 3825177 A US3825177 A US 3825177A
- Authority
- US
- United States
- Prior art keywords
- chamber
- liquid
- drum
- discharge
- paring
- 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 - Lifetime
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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
Definitions
- ABSTRACT Self dumping centrifugal separator having a paring V chamber and disk for removal of clarified liquid, and, for dumping, a main valve at the periphery of the drum for periodic ejection of solids and a secondary valve for removal of liquid from the separating zone to reduce the discharge of liquid through the 'main valve during dumping.
- Means such as springs, urge the secondary valve into a normally closed position.
- a control chamber is provided for receiving liquid to urge the secondary valve to the open position and a passageway communicates the control chamber with an annular groove separated by a weir from the paring chamber, the weir being of greater inside diameter than the inside diameter of the paring chamber cover.
- liquid in the paring chamber overflows the weir and flows into the annular groove, through said passageway to the con trol chamber and forces the secondary valve to the open position for discharge of liquid from the separating zone.
- the invention relates to a self-dumping drum centrifuge for the clarification of liquids, which is equipped with a paring disk for removing the clarified liquid under pressure.
- a drum of this kind is described, for example, in German Patent No. 1,182,602.
- a valve in the line through which the material is delivered for separation and a valve in the line through which the clear phase is removed must be closed in order to prevent any inflow or back-flow of liquid into the drum when the dumping apertures are opened.
- dumping involves spinning the entire content of the drum into the same catching means where the solids and the liquid recombine.
- a self-dumping drum centrifuge for the clarification of liquids having a controlled main valve for the periodical discharge of the solids and a separately controlled secondary valve for the prior discharge of the liquid portion of the drum contents, is known, for example, through German Patent No. 1,212,889.
- the cylindrical portion of the secondary valve surrounds a concentric chamber which communicates with the separating chamber through one or more bores. These bores are located at approximately the same distance from the axis of rotation as the outer edge of the plate stack. Thus, when the solids chamber is filled, they run from the outermost circumference of the ring of liquid filling the central part of the separating chamber.
- the invention is addressed to the problem of constructing a self-dumping clarifying separator with a paring disk such that, when the valve in the line through which the clarified liquid is removed is closed, the liquid part of the drum contents will be automatically let out.
- the invention is characterized by a secondary valve, which is known in itself, for the opening and closing of the apertures for letting out the liquid portion of the drum contents, on whose one side a plurality of compression springs are distributed around its periphery 2 and on whose other side a control chamber is provided which communicates through one or more passages with a central annular groove which is separated from the paring chamber by a diaphragm whose inside diameter is larger than the inside diameter of the cover of the paring chamber.
- a spring-biased ring which is axially displaceable by means of a control fluid is also known from the previously mentioned German Patent No. 1,182,602.
- the purpose of this ring is to let the closing fluid out of the closing chamber of the valve controlling the apertures for the discharge of the solids; also, the ring is not actuated by the valve in the clear phase discharge line.
- the invention is concerned with a self-dumping drum centrifuge for the separation of a liquid into a solid fraction and a clarified liquid fraction.
- the centrifuge comprises a drum having a separating chamber for the separation and a solid collecting chamber disposed radially outwardly of the separating chamber, a paring chamber communicating with the separating chamber for receiving clarified liquid from the separating chamber, a paring disk for removal of clarifying liquid from the paring chamber, a discharge line for receiving clarified liquid from the paring disk for discharge of clarified liquid, a main valve at the periphery of the drum for periodic ejection of solids from the drum for said dumping, and a secondary valve for corresponding periodic discharge of liquid from the separating chamber to reduce the discharge of liquid through the main valve during dumping.
- the invention provides the improvement which comprises, in the drum, means resiliently urging the secondary valve to the closed position, and means defining a control chamber for the secondary valve forreceiving liquid to urge the secondary valve to the open position.
- An annular groove is separated from the paring chamber by a weir having an inside diameter greater than the inside diameter of the paring chamber cover, and a passageway communicates the annular groove with the control chamber.
- the main valve 1 for the periodical ejection of the solids is provided in this embodiment in the lower part 2 of the drum and the secondary valve 3 for letting out the liquid part of the drum contents isprovided in the upper part 4 of the drum between the drum cover 5 and the paring chamber cover 6.
- the two covers 5 and 6 are screwed together by means of a threaded ring 7.
- the separating zone 3 or chamber 8 is equipped with a plate stack 9. Solids collect in solids collecting zone or chamber 80. Passages 10 lead from the inner margin of the separating chamber 8 to the paring chamber 11 in which a paring disk 12 is provided for the purpose of pumping the clarified liquid out under pressure.
- Adjacent the outer margin of the plate stack 9 the drum cover 5 is provided with bores 13 leading to the underside of the secondary valve 3. From the outer sliding surface of the secondary valve 3 bores 14 lead outwardly through the drum cover 5.
- the paring chamber 11 provides an annular groove about the drum axis having an upper lip formed by the paring chamber cover 6, the inside diameter of the upper lip being 6a, and a lower lip formed by the weir or diaphragm 20, the inside diameter of the lower lip being 20a.
- the lower lip 20 is a separating lip between the annular groove or paring chamber 11 and the annular groove 19.
- the inside diameter 20a of the lower lip or diaphragm 20 is greater than the inside diameter 6a of the upper lip 6.
- a valve 22 is installed in the line 21 through which the material to be separated is delivered, and a valve 24 is provided in the line 23 through which the clarified liquid is removed.
- the drum operates in the following manner:
- valves 22 and 24 are open and the sliding valves 1 and 3 are closed.
- the solids separated from the liquid collect in the solids chamber outside of the plate stack 9, and the clarified liquid, after flowing through the interstices between the plates, passes through the passages into the paring chamber 11 from which it is pumped away under pressure by means of the paring disk 12.
- the free fluid level in the paring chamber is, let us say, at 25.
- the sliding valve 3 returns to the closed position.
- the main valve 1 is opened in a known manner.
- the solids then ejected through the bores 27 are captured by the catching means 28.
- the next centrifuging period commences with the closing of the main valve 1 and the opening of valves 22 and 24 by, the programming mechanism.
- a self-dumping drum centrifuge for the separation of a liquid into a solids fraction and a clarified liquid fraction
- a drum having a separating chamber for said separation and solids collecting chamber disposed radially outwardly of the separating chamber, a paring chamber having a paring chamber cover, said paring chamber communicating with the separating chamber for receiving clarified liquid from the separating chamber, a paring disk for removal of clarified liquid from the paring chamber, a discharge line for receiving clarified liquid from the paring disk for discharge of clarified liquid, a main valve at the periphery of the drum for periodic ejection of solids from the drum for said dumping, and a secondary valve in the drum communicating with the separating chamber for corresponding periodic discharge of liquid from the separating chamber to reduce the discharge of liquid through the main valve during dumping, the improvement which comprises, in the drum, means urging the secondary valve to the closed position, means defining a control chamber for the secondary valve for receiving liquid to urge the secondary valve to the open position, means defining an annular
- a self-dumping drum centrifuge for the separation of a liquid into a solids fraction and a clarified liquid fraction comprising a drum having a separation chamber for said separation and a solids collecting chamber disposed radially outwardly of the separating chamber, a solids discharge aperture at the drum periphery for discharge of solids from the drum periphery, a solids discharge valve for closing and periodically opening of the drum aperture for periodic discharge of solids, a first annular chamber in the drum formed as an annular groove about the drum axis having an upper lip and a lower lip, means for feeding a liquid to the first annular chamber, a liquid discharge aperture in the drum communicating with the separating chamber for discharge of liquid from the separating chamber to reduce the discharge of liquid during dumping through the solids discharge aperture, a liquid discharge valve for closing and periodically opening of said liquid discharge aperture in correspondence with the opening of the solids discharge valve to reduce said discharge of liquid during dumping, means urging the liquid discharge valve to the closed position, means defining a control chamber for the liquid discharge valve for
Landscapes
- Centrifugal Separators (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722220717 DE2220717C2 (de) | 1972-04-27 | 1972-04-27 | Selbstentleerende zentrifugentrommel zum klaeren von fluessigkeiten mit einer schaelscheibe zum ableiten der geklaerten fluessigkeit unter druck |
Publications (1)
Publication Number | Publication Date |
---|---|
US3825177A true US3825177A (en) | 1974-07-23 |
Family
ID=5843470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00350279A Expired - Lifetime US3825177A (en) | 1972-04-27 | 1973-04-11 | Self-dumping drum centrifuge for the clarification of liquids,equipped with a paring disk for removing the clarified liquid under pressure |
Country Status (8)
Country | Link |
---|---|
US (1) | US3825177A (xx) |
JP (1) | JPS4942109B2 (xx) |
DE (1) | DE2220717C2 (xx) |
DK (1) | DK127845B (xx) |
FR (1) | FR2181749B1 (xx) |
GB (1) | GB1384521A (xx) |
IT (1) | IT977794B (xx) |
SE (1) | SE377287B (xx) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4325825A (en) * | 1979-04-26 | 1982-04-20 | Hoechst Aktiengesellschaft | Separator |
US4347971A (en) * | 1977-03-03 | 1982-09-07 | Joy Manufacturing Company | Centrifuge apparatus |
US4392846A (en) * | 1981-05-18 | 1983-07-12 | Joy Manufacturing Company | Centrifuge apparatus |
US4432748A (en) * | 1976-09-03 | 1984-02-21 | Joy Manufacturing Company | Centrifuge apparatus and method of operating a centrifuge |
US4710159A (en) * | 1984-10-08 | 1987-12-01 | Alfa-Laval Separation Ab | Centrifugal separator |
WO1994001220A1 (en) * | 1992-07-08 | 1994-01-20 | Trylock Pty. Ltd. | Centrifugal filter device |
US5464536A (en) * | 1992-06-10 | 1995-11-07 | Charles W. Taggart | Apparatus for centrifugally separating a fluid mixture into its component parts |
AU680420B2 (en) * | 1992-07-08 | 1997-07-31 | Trylock Pty Ltd | Centrifugal filter device |
US5713827A (en) * | 1992-07-08 | 1998-02-03 | Trylock Pty Ltd | Centrifugal filter device |
US6346069B1 (en) | 1999-08-06 | 2002-02-12 | Separation Process Technology, Inc. | Centrifugal pressurized separators and methods of controlling same |
US6607473B2 (en) | 1999-08-06 | 2003-08-19 | Econova Inc. | Methods for centrifugally separating mixed components of a fluid stream under a pressure differential |
US6719681B2 (en) | 1999-08-06 | 2004-04-13 | Econova, Inc. | Methods for centrifugally separating mixed components of a fluid stream |
US8317672B2 (en) | 2010-11-19 | 2012-11-27 | Kensey Nash Corporation | Centrifuge method and apparatus |
US8394006B2 (en) | 2010-11-19 | 2013-03-12 | Kensey Nash Corporation | Centrifuge |
US8469871B2 (en) | 2010-11-19 | 2013-06-25 | Kensey Nash Corporation | Centrifuge |
US8556794B2 (en) | 2010-11-19 | 2013-10-15 | Kensey Nash Corporation | Centrifuge |
US8870733B2 (en) | 2010-11-19 | 2014-10-28 | Kensey Nash Corporation | Centrifuge |
US10125345B2 (en) | 2014-01-31 | 2018-11-13 | Dsm Ip Assets, B.V. | Adipose tissue centrifuge and method of use |
CN108993781A (zh) * | 2018-07-27 | 2018-12-14 | 海盐宝利机械有限公司 | 一种离心倒料一体机 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5390012U (xx) * | 1976-12-24 | 1978-07-24 | ||
GB1591811A (en) * | 1977-05-24 | 1981-06-24 | Jackson J F | Desludger type disc bowl centrifuges |
-
1972
- 1972-04-27 DE DE19722220717 patent/DE2220717C2/de not_active Expired
-
1973
- 1973-02-14 IT IT67353/73A patent/IT977794B/it active
- 1973-02-19 FR FR7305746A patent/FR2181749B1/fr not_active Expired
- 1973-03-13 SE SE7303465A patent/SE377287B/xx unknown
- 1973-03-27 GB GB1454873A patent/GB1384521A/en not_active Expired
- 1973-04-11 US US00350279A patent/US3825177A/en not_active Expired - Lifetime
- 1973-04-24 DK DK222273AA patent/DK127845B/da unknown
- 1973-04-26 JP JP7348332A patent/JPS4942109B2/ja not_active Expired
Cited By (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4432748A (en) * | 1976-09-03 | 1984-02-21 | Joy Manufacturing Company | Centrifuge apparatus and method of operating a centrifuge |
US4347971A (en) * | 1977-03-03 | 1982-09-07 | Joy Manufacturing Company | Centrifuge apparatus |
US4325825A (en) * | 1979-04-26 | 1982-04-20 | Hoechst Aktiengesellschaft | Separator |
US4392846A (en) * | 1981-05-18 | 1983-07-12 | Joy Manufacturing Company | Centrifuge apparatus |
US4710159A (en) * | 1984-10-08 | 1987-12-01 | Alfa-Laval Separation Ab | Centrifugal separator |
US5464536A (en) * | 1992-06-10 | 1995-11-07 | Charles W. Taggart | Apparatus for centrifugally separating a fluid mixture into its component parts |
US5713827A (en) * | 1992-07-08 | 1998-02-03 | Trylock Pty Ltd | Centrifugal filter device |
AU680420B2 (en) * | 1992-07-08 | 1997-07-31 | Trylock Pty Ltd | Centrifugal filter device |
WO1994001220A1 (en) * | 1992-07-08 | 1994-01-20 | Trylock Pty. Ltd. | Centrifugal filter device |
US6346069B1 (en) | 1999-08-06 | 2002-02-12 | Separation Process Technology, Inc. | Centrifugal pressurized separators and methods of controlling same |
US6607473B2 (en) | 1999-08-06 | 2003-08-19 | Econova Inc. | Methods for centrifugally separating mixed components of a fluid stream under a pressure differential |
US6719681B2 (en) | 1999-08-06 | 2004-04-13 | Econova, Inc. | Methods for centrifugally separating mixed components of a fluid stream |
US20040192533A1 (en) * | 1999-08-06 | 2004-09-30 | Econova, Inc. | Centrifugal separators |
US7060017B2 (en) | 1999-08-06 | 2006-06-13 | Econova, Inc. | Centrifugal separators |
US20060217255A1 (en) * | 1999-08-06 | 2006-09-28 | Econova, Inc. | Method for separating particulate matter from a fluid stream |
US7314441B2 (en) | 1999-08-06 | 2008-01-01 | Econova, Inc. | Method for separating particulate matter from a fluid stream |
US8469871B2 (en) | 2010-11-19 | 2013-06-25 | Kensey Nash Corporation | Centrifuge |
US8870733B2 (en) | 2010-11-19 | 2014-10-28 | Kensey Nash Corporation | Centrifuge |
US8317672B2 (en) | 2010-11-19 | 2012-11-27 | Kensey Nash Corporation | Centrifuge method and apparatus |
US8485958B2 (en) | 2010-11-19 | 2013-07-16 | Kensey Nash Corporation | Systems and methods for separating constituents of biologic liquid mixtures |
US8556794B2 (en) | 2010-11-19 | 2013-10-15 | Kensey Nash Corporation | Centrifuge |
US8562501B2 (en) | 2010-11-19 | 2013-10-22 | Kensey Nash Corporation | Methods for separating constituents of biologic liquid mixtures |
US8617042B2 (en) | 2010-11-19 | 2013-12-31 | Kensey Nash Corporation | Methods for separating constituents of biologic liquid mixtures |
US8747291B2 (en) | 2010-11-19 | 2014-06-10 | Kensey Nash Corporation | Methods for separating constituents of biologic liquid mixtures |
US8758211B2 (en) | 2010-11-19 | 2014-06-24 | Kensey Nash Corporation | Centrifuge |
US8394006B2 (en) | 2010-11-19 | 2013-03-12 | Kensey Nash Corporation | Centrifuge |
US8974362B2 (en) | 2010-11-19 | 2015-03-10 | Kensey Nash Corporation | Centrifuge |
US9114408B2 (en) | 2010-11-19 | 2015-08-25 | Kensey Nash Corporation | Centrifuge |
US9987638B2 (en) | 2010-11-19 | 2018-06-05 | Dsm Ip Assets, B.V. | Centrifuge |
US11167292B2 (en) | 2010-11-19 | 2021-11-09 | Dsm Ip Assets B.V. | Centrifuge |
US10646884B2 (en) | 2010-11-19 | 2020-05-12 | Dsm Ip Assets B.V. | Centrifuge |
US10711239B2 (en) | 2014-01-31 | 2020-07-14 | Dsm Ip Assets B.V. | Adipose tissue centrifuge and method of use |
US10125345B2 (en) | 2014-01-31 | 2018-11-13 | Dsm Ip Assets, B.V. | Adipose tissue centrifuge and method of use |
US11549094B2 (en) | 2014-01-31 | 2023-01-10 | Dsm Ip Assets B.V. | Adipose tissue centrifuge and method of use |
CN108993781A (zh) * | 2018-07-27 | 2018-12-14 | 海盐宝利机械有限公司 | 一种离心倒料一体机 |
CN108993781B (zh) * | 2018-07-27 | 2024-05-10 | 海盐宝利机械有限公司 | 一种离心倒料一体机 |
Also Published As
Publication number | Publication date |
---|---|
FR2181749A1 (xx) | 1973-12-07 |
SE377287B (xx) | 1975-06-30 |
DE2220717B1 (de) | 1973-01-25 |
JPS4942109B2 (xx) | 1974-11-13 |
IT977794B (it) | 1974-09-20 |
FR2181749B1 (xx) | 1977-04-29 |
GB1384521A (en) | 1975-02-19 |
DE2220717C2 (de) | 1973-08-23 |
JPS4954961A (xx) | 1974-05-28 |
DK127845B (da) | 1974-01-21 |
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