GB1220430A - Improvements in or relating to centrifugal separation apparatus - Google Patents
Improvements in or relating to centrifugal separation apparatusInfo
- Publication number
- GB1220430A GB1220430A GB50410/69A GB5041069A GB1220430A GB 1220430 A GB1220430 A GB 1220430A GB 50410/69 A GB50410/69 A GB 50410/69A GB 5041069 A GB5041069 A GB 5041069A GB 1220430 A GB1220430 A GB 1220430A
- Authority
- GB
- United Kingdom
- Prior art keywords
- line
- pipe
- bowl
- skimmer
- fraction
- 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
- B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
-
- 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
- B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
- B04B2001/2083—Configuration of liquid outlets
Landscapes
- Centrifugal Separators (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
1,220,430. Centrifugal separators. BIRD MACHINE CO. 14 Oct., 1969 [15 Oct., 1968], No. 50410/69. Heading B2P. [Also in Division G3] In a centrifugal separator comprising a rotatable solid bowl 14, Fig. 1, into which a solids-liquid slurry is fed to form a pool and from which a relatively rotatable conveyor 36 continuously discharges a first fraction of the slurry containing solids which are separated towards the wall of the bowl under the action of centrifugal force and a skimmer 42 continuously discharges a second fraction of the slurry containing solids which are not so readily separated, means are provided for automatically adjusting the distance of the skimmer 42 from the wall of the bowl, and hence the pool depth, under the control of signals obtained from at least one consistency analyser for at least one of the separated fractions. The slurry is fed via a fixed T-pipe 86 and a rotatable pipe 60 into an end compartment 66 of the conveyor hub 26 and thence into the bowl interior. Flocculant or other chemical to facilitate solids separation is fed via pipes 88, 88' into a compartment 90 of the hub and discharges therefrom, through nozzles 92, into the pool formed in the bowl 14. The skimmer extends into an annular chamber member 38 provided on the conveyor hub 26 and having inlet openings 40 and is mounted on eccentric flanges 48 on a sleeve 50 extending coaxially through the bowl shaft 20 and fixedly connected to a support ring 52 on a support structure 24. The skimmer removes the second fraction from the pool of slurry and discharges it through ports 54, sleeve 50 and effluent pipe 56. The distance of the skimmer from the wall of the bowl is adjusted by rotating it on the eccentric flanges 68 by means of the rotatable pipe 60 through a block 58 and a gib slide connection 54, the pipe 60 being rotated by a worm shaft 70 operated by a reversible electric motor 94. The first slurry fraction is discharged by the conveyor 36 into a chute 12, which is provided with a sampling hopper 74. As shown in Fig. 2, a pipe 78 connected to the hopper 74 leads a sample of the first fraction to a pump 100 which continuously discharges through a line 102 to a consistency analyser 104 which provides an electric output signal which is a function of the density of the sample being analysed, the sample being continuously returned via a line 80 to the chute 12. The signal is fed via a converter 116 and line 118 to control circuitry CC for operating the motor 94 in the required direction to move the skimmer radially either outwardly towards, or inwardly from, the wall of the bowl and hence decrease or increase the pool depth. A sample of the second fraction is continuously led from the effluent pipe 56 through a line 82 to a turbidity measuring device 130 which provides an output signal indicative of the solids concentration of the sample which is returned to the pipe 56 through a line 84. This signal is fed via a receiver recorder 138 and line 140 to control circuitry CC for operating a variable speed reduction motor 144 driving a pump 146 which delivers the required amount of chemical to the pipe 88. The signal on line 118 may additionally or alternatively be utilized to operate the chemical feed pump 146 as indicated by dotted line 122. The signal on line 140 may additionally or alternatively be utilized to operate the pool adjustment motor 94 as indicated by the dotted line 152. Two diagrams of the control circuitry are described in detail.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US76772468A | 1968-10-15 | 1968-10-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1220430A true GB1220430A (en) | 1971-01-27 |
Family
ID=25080359
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB50410/69A Expired GB1220430A (en) | 1968-10-15 | 1969-10-14 | Improvements in or relating to centrifugal separation apparatus |
Country Status (7)
Country | Link |
---|---|
US (1) | US3532264A (en) |
BR (1) | BR6913328D0 (en) |
CH (1) | CH496478A (en) |
DE (1) | DE1951574A1 (en) |
FR (1) | FR2030057B1 (en) |
GB (1) | GB1220430A (en) |
SE (1) | SE355304B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5088667A (en) * | 1974-12-09 | 1975-07-16 |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3854658A (en) * | 1973-05-07 | 1974-12-17 | Dorr Oliver Inc | Solid bowl conveyer type centrifuge |
DE2551788A1 (en) * | 1975-11-18 | 1977-06-02 | Flottweg Werk Bruckmayer | FULLY-SLEEVED SCREW CENTRIFUGE WITH DIFFERENTIAL SPEED-VARIABLE COUPLING BETWEEN SHEATH PART AND SCREW PART |
DE2551789A1 (en) * | 1975-11-18 | 1977-06-02 | Flottweg Werk Bruckmayer | FULLY-SLEEVED SCREW CENTRIFUGE WITH DIFFERENTIAL SPEED-VARIABLE COUPLING BETWEEN SHEATH PART AND SCREW PART |
DE2701763C3 (en) * | 1977-01-18 | 1979-11-15 | Westfalia Separator Ag, 4740 Oelde | Continuous full bowl countercurrent centrifugal extractor |
US4298160A (en) * | 1977-05-24 | 1981-11-03 | Thomas Broadbent & Sons Limited | Solid bowl decanter centrifuges |
CA1114343A (en) * | 1978-10-23 | 1981-12-15 | Henry J. Ephithite | Centrifuge |
US5176616A (en) * | 1989-06-29 | 1993-01-05 | Kloeckner-Humboldt-Deutz Aktiengesellschaft | Method and apparatus for the after-treatment of the thick material in the thick material discharge region of a solid bowl worm centrifuge |
DE3921327A1 (en) * | 1989-06-29 | 1991-01-03 | Kloeckner Humboldt Deutz Ag | WEIR FOR ADJUSTING THE LIQUID LEVEL IN FULL-COAT CENTRIFUGES |
WO1992005877A1 (en) * | 1990-09-27 | 1992-04-16 | Conoco Specialty Products Inc. | Countercurrent washing of solids in a decanter centrifuge |
CH682053A5 (en) * | 1990-12-11 | 1993-07-15 | Hans Andreas Weil | |
DE4104482A1 (en) * | 1991-02-14 | 1992-08-20 | Kloeckner Humboldt Deutz Ag | DEVICE FOR SEPARATING SOLID-LIQUID MIXTURES |
DE4327291C2 (en) * | 1993-08-13 | 1997-07-31 | Krauss Maffei Ag | Method and device for determining measured variables of a centrifuge |
DK0868215T3 (en) * | 1995-12-01 | 2002-05-06 | Baker Hughes Inc | Method and apparatus for controlling and monitoring a continuous supply centrifuge |
US5857955A (en) * | 1996-03-27 | 1999-01-12 | M-I Drilling Fluids L.L.C. | Centrifuge control system |
US5800332A (en) * | 1996-07-03 | 1998-09-01 | Hensley; Gary L. | Decanting centrifuge employing elements with differing rates of rotation |
US6368264B1 (en) * | 1999-03-29 | 2002-04-09 | M-I L.L.C. | Centrifuge control system and method with operation monitoring and pump control |
EP1232794B1 (en) * | 2001-02-08 | 2004-06-09 | Westfalia Separator AG | Method for separating of a multi-phase mixture and decanter centrifuge system for carrying out this method |
US7255670B2 (en) * | 2004-03-04 | 2007-08-14 | Hutchison Hayes, L.P. | Three phase decanter centrifuge |
WO2009149373A2 (en) * | 2008-06-06 | 2009-12-10 | M-I L.L.C. | Dual feed centrifuge |
DK200970026A (en) | 2009-06-12 | 2010-12-13 | Alfa Laval Corp Ab | A centrifugal separator |
CA3021262A1 (en) * | 2016-04-19 | 2017-10-26 | Recover Energy Services Inc. | Oilfield centrifuge decanter for drilling waste drying method and apparatus |
CN108296031B (en) * | 2018-02-25 | 2019-02-05 | 深圳市鸿发化工有限公司 | A kind of grinding and polishing chemicals equipment |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB610482A (en) * | 1945-04-18 | 1948-10-15 | Separator Ab | A method of centrifugal separation of sludge-containing liquids |
US3279687A (en) * | 1963-05-24 | 1966-10-18 | Bird Machine Co | Centrifuge |
US3279688A (en) * | 1964-08-03 | 1966-10-18 | Bird Machine Co | Centrifuge |
US3423015A (en) * | 1967-08-23 | 1969-01-21 | Ametek Inc | Continuous centrifugal separator with pool depth control |
-
1968
- 1968-10-15 US US767724A patent/US3532264A/en not_active Expired - Lifetime
-
1969
- 1969-10-03 CH CH1495669A patent/CH496478A/en not_active IP Right Cessation
- 1969-10-13 DE DE19691951574 patent/DE1951574A1/en active Pending
- 1969-10-13 SE SE14042/69A patent/SE355304B/xx unknown
- 1969-10-14 GB GB50410/69A patent/GB1220430A/en not_active Expired
- 1969-10-15 BR BR213328/69A patent/BR6913328D0/en unknown
- 1969-10-15 FR FR696935343A patent/FR2030057B1/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5088667A (en) * | 1974-12-09 | 1975-07-16 | ||
JPS5317342B2 (en) * | 1974-12-09 | 1978-06-07 |
Also Published As
Publication number | Publication date |
---|---|
CH496478A (en) | 1970-09-30 |
FR2030057B1 (en) | 1973-03-16 |
US3532264A (en) | 1970-10-06 |
FR2030057A1 (en) | 1970-10-30 |
SE355304B (en) | 1973-04-16 |
DE1951574A1 (en) | 1970-04-23 |
BR6913328D0 (en) | 1973-03-08 |
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