US2139715A - Centrifugal separator for the separation of liquids tending to form froth - Google Patents
Centrifugal separator for the separation of liquids tending to form froth Download PDFInfo
- Publication number
- US2139715A US2139715A US976A US97635A US2139715A US 2139715 A US2139715 A US 2139715A US 976 A US976 A US 976A US 97635 A US97635 A US 97635A US 2139715 A US2139715 A US 2139715A
- Authority
- US
- United States
- Prior art keywords
- liquid
- separation
- bowl
- centrifugal separator
- separated liquid
- 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
- B04B11/00—Feeding, charging, or discharging bowls
- B04B11/08—Skimmers or scrapers for discharging ; Regulating thereof
- B04B11/082—Skimmers for discharging liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B15/00—Other accessories for centrifuges
- B04B15/04—Other accessories for centrifuges for suppressing the formation of foam
Definitions
- the object of my invention is to provide a centrifugal separator especially designed for the separation of liquids which tend to produce froth.
- the supply of liquid to the bowl is so arranged that the liquid to be separated cannot absorb more than the limited quantity of air which is contained in the inlet chamber of the bowl for the liquid at the start of the separation.
- An essential feature of the inventlon is that the paring device and discharge chamber for the heavier separated liquid shall have a greater outward extension from the axis of the bowl than the paring device and discharge chamber for the lighter separated liquid, there- ]5 by effecting a generation of pressure in the paring device for the heavier separated liquid higher than that generated for the paring device of the lighter separated liquid.
- Fig. 2 is a similar view of a modification.
- Fig. 1 The liquid mixture to be separated is fed through a feed tube I into a central chamber I2 within the distributor 9, whence the liquid flows, through inlet holes 4, into the separating chamber 5 I of the bowl.
- the skimming wheels I and 8 extend radially beyond the tree level of liquid in the chambers 60 and act as liquid seals.
- the levels of the liquid in chambers I3 and II are determined by the counterpressures in the outlets 2 and 3. It is necessary to keep the cylindric liquid levels in chambers I3 and I4 at a safe distance from the inlets 86 of the skimming wheels in order to avoid supply of air to and formation of froth in the skimming wheels.
- the liquid to be 5 separated is fed to the separating chamber of the bowl through a stationary tube 24 extending through a hollow spindle 2
- a stationary tube 24 extending through a hollow spindle 2
- annular sealing plate 22 At the upper end of the tube 24 and integral therewith is an annular sealing plate 22 having attached to its upper 10 side two or more wings 23 that join with a stem 25 which, by entering a socket 26 in the under side of the skimmer I, centralizes and guides the upper end of the tube.
- the plate 22 is of sufiicient size to penetrate the zone of liquid and prevent air from the space between the tube and the spindle entering the space, above the plate, where the entering liquid is so agitated that it would take up much air. In the space below the plate the liquid is rotating so smoothly that it has no tendency to take in air.
- the upper paring device and discharge chamber for the heavier separated liquid have a greater outward extension than the lower paring device and discharge chamber for the lighter separated liquid, thereby effecting a generation of pressure for the heavier separated liquid higher than that generated in the paring device for the lighter separated liquid.
- a high speed centrifugal separator for the separation of a mixture of liquids of different specific gravities which comprises a rotary bowl having an upstanding neck and a top disc in the bowl having an upstanding neck spaced from the bowl nesk and providing between them a passage communicating with the peripheral zone of the bowl, upper and lower rotary discharge chambers and stationary disc-like paring devices, one in each discharge chamber, the lower discharge chamber communicating with the space in the bowl at the inner side of the top disc, the neck of the top disc forming the outer wall of the lower discharge chamber, the upper discharge chamber extending outward beyond the lower discharge chamber and beyond the top of the neck on the top disc and communicating with said passage and the upper paring device extending outward beyond the lower one, said greater outward extension of the upper discharge chamber and paring device efiecting a generation of pressure in the paring device for the heavier separated liquid higher than that generated in the paring device for the lighter separated liquid.
- the paring device and the discharge chamber for the heavier separated liquid having a substantially greater diametrical extension beyond the bowl axis than the paring device and discharge chamber for the lighter separated liquid so that the pressure generated in theparing device for the lighter separated liquid is lower than that generated in the paring device for the heavier separated liquid.
Landscapes
- Centrifugal Separators (AREA)
Description
Dec. 13, 1938. N. E. BERGNER CENTRIFUGAL SEPARATOF FOR THE SEPARATION OF LIQUIDS TENDING TO FORM FROTH Filed Jan. 9, 1935 2 Sheets-Sheet 1 wry/7w /Vorc Ekar 6 I'V/TA EJS Dec. 13, 1938. N. E. BERGNER CENTRIFUGAL SEPARATOR FOR THE SEPARATION OF LIQUIDS TENDING TO FORM FRO'IH 2 Sheets-Sheet 2 Filed Jan. 9, 1955 Patented Dec. 13, 1938 UNITED STATES PATENT GFFMIE CENTRIFUGAL SEPARATOR FOR THE SEP- ARATION OF LIQUIDS TENDmG TO FORM FROTH Application January 9, 1935, sci-aim. 976 In Sweden April 21, 1934 2Claims.
The object of my invention is to provide a centrifugal separator especially designed for the separation of liquids which tend to produce froth.
According to the invention the supply of liquid to the bowl is so arranged that the liquid to be separated cannot absorb more than the limited quantity of air which is contained in the inlet chamber of the bowl for the liquid at the start of the separation. An essential feature of the inventlon is that the paring device and discharge chamber for the heavier separated liquid shall have a greater outward extension from the axis of the bowl than the paring device and discharge chamber for the lighter separated liquid, there- ]5 by effecting a generation of pressure in the paring device for the heavier separated liquid higher than that generated for the paring device of the lighter separated liquid. Two embodiments ofthe invention are disclosed in the accompanying 20 drawings, in which Fig. 1 is a vertical sectional view of a centrifugal separator comprising one embodiment of the in-- vention.
Fig. 2 is a similar view of a modification.
25 Referring first to Fig. 1: The liquid mixture to be separated is fed through a feed tube I into a central chamber I2 within the distributor 9, whence the liquid flows, through inlet holes 4, into the separating chamber 5 I of the bowl. The
30 heavier separated liquid flows out, through the channels 6 between the bowl hood I I and the top disc, into a chamber I4 that rotates with the bowl. The lighter separated liquid flows toward the center of the separating chamber of the bowl 35 and thence into a chamber Iii-that rotates with the bowl. Stationary skimming devices I and 8 (preferably constructed similarly to turbine wheels and presenting, except for the inlet ends of the channels receiving the separated liquid, a
40 continuous periphery) extend into the chambers I 3 and I 4 respectively. The liquid receiving channels in these skimming devices communicate with channels I5 and I6 formed respectively between the feed tube I and a stationary tubular element 45 I1 and between stationary tubular elements I1 and I8. Channels I5 and I6 communicate respectively with outlet pipes 2 and 3.
The skimming wheels I and 8 extend radially beyond the tree level of liquid in the chambers 60 and act as liquid seals. The levels of the liquid in chambers I3 and II are determined by the counterpressures in the outlets 2 and 3. It is necessary to keep the cylindric liquid levels in chambers I3 and I4 at a safe distance from the inlets 86 of the skimming wheels in order to avoid supply of air to and formation of froth in the skimming wheels.
In Fig. 2 the construction is the same as in Fig.
1 except that no feed tube extends through the tubular element II. Instead, the liquid to be 5 separated is fed to the separating chamber of the bowl through a stationary tube 24 extending through a hollow spindle 2|. At the upper end of the tube 24 and integral therewith is an annular sealing plate 22 having attached to its upper 10 side two or more wings 23 that join with a stem 25 which, by entering a socket 26 in the under side of the skimmer I, centralizes and guides the upper end of the tube. The plate 22 is of sufiicient size to penetrate the zone of liquid and prevent air from the space between the tube and the spindle entering the space, above the plate, where the entering liquid is so agitated that it would take up much air. In the space below the plate the liquid is rotating so smoothly that it has no tendency to take in air.
In both Figs. 1 and 2 the upper paring device and discharge chamber for the heavier separated liquid have a greater outward extension than the lower paring device and discharge chamber for the lighter separated liquid, thereby effecting a generation of pressure for the heavier separated liquid higher than that generated in the paring device for the lighter separated liquid.
What I claim and desire to protect by Letters 30 Patent is:
1. A high speed centrifugal separator for the separation of a mixture of liquids of different specific gravities, which comprises a rotary bowl having an upstanding neck and a top disc in the bowl having an upstanding neck spaced from the bowl nesk and providing between them a passage communicating with the peripheral zone of the bowl, upper and lower rotary discharge chambers and stationary disc-like paring devices, one in each discharge chamber, the lower discharge chamber communicating with the space in the bowl at the inner side of the top disc, the neck of the top disc forming the outer wall of the lower discharge chamber, the upper discharge chamber extending outward beyond the lower discharge chamber and beyond the top of the neck on the top disc and communicating with said passage and the upper paring device extending outward beyond the lower one, said greater outward extension of the upper discharge chamber and paring device efiecting a generation of pressure in the paring device for the heavier separated liquid higher than that generated in the paring device for the lighter separated liquid.
cating respectively with the two paring devices, the paring device and the discharge chamber for the heavier separated liquid having a substantially greater diametrical extension beyond the bowl axis than the paring device and discharge chamber for the lighter separated liquid so that the pressure generated in theparing device for the lighter separated liquid is lower than that generated in the paring device for the heavier separated liquid.
NORE EINAR BERGN'ER.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE2139715X | 1934-04-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2139715A true US2139715A (en) | 1938-12-13 |
Family
ID=20424745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US976A Expired - Lifetime US2139715A (en) | 1934-04-21 | 1935-01-09 | Centrifugal separator for the separation of liquids tending to form froth |
Country Status (1)
Country | Link |
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US (1) | US2139715A (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2572425A (en) * | 1947-08-28 | 1951-10-23 | Separator Ab | Centrifugal separation of heavy boiler oil |
US2667302A (en) * | 1949-03-14 | 1954-01-26 | Westfalia Separator Ag | Centrifuge connection |
US2688436A (en) * | 1952-09-11 | 1954-09-07 | Standard Oil Co | Extensible gasket for centrifuge bowls |
US3073517A (en) * | 1959-04-07 | 1963-01-15 | Beckman Instruments Inc | Continuous flow centrifuge apparatus and rotor therefor |
US3145174A (en) * | 1961-11-01 | 1964-08-18 | Pennsdalt Chemicals Corp | Centrifuge having self-cleaning solids discharge |
US3191856A (en) * | 1962-03-27 | 1965-06-29 | Beckman Instruments Inc | Centrifuge rotor |
US3216655A (en) * | 1957-12-27 | 1965-11-09 | Wind Jaap | Continuously operating ultracentrifuges |
US3217982A (en) * | 1958-10-17 | 1965-11-16 | Westfalia Separator Ag | Apparatus for the sterilization of liquids |
US3416726A (en) * | 1967-05-04 | 1968-12-17 | Dorr Oliver Inc | Bearing mounted overflow impeller |
US4210275A (en) * | 1977-08-19 | 1980-07-01 | Westfalia Separator Aktiengesellschaft | Continuously operating centrifugal separator |
US4929227A (en) * | 1987-10-16 | 1990-05-29 | Westfalia Separator Ag | Centrifuge drum for separating mixtures of liquids |
US9931646B2 (en) | 2011-09-08 | 2018-04-03 | Alfa Laval Corporate Ab | Centrifugal separator having a forcing device to create a radial leak flow |
-
1935
- 1935-01-09 US US976A patent/US2139715A/en not_active Expired - Lifetime
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2572425A (en) * | 1947-08-28 | 1951-10-23 | Separator Ab | Centrifugal separation of heavy boiler oil |
US2667302A (en) * | 1949-03-14 | 1954-01-26 | Westfalia Separator Ag | Centrifuge connection |
US2688436A (en) * | 1952-09-11 | 1954-09-07 | Standard Oil Co | Extensible gasket for centrifuge bowls |
US3216655A (en) * | 1957-12-27 | 1965-11-09 | Wind Jaap | Continuously operating ultracentrifuges |
US3217982A (en) * | 1958-10-17 | 1965-11-16 | Westfalia Separator Ag | Apparatus for the sterilization of liquids |
US3073517A (en) * | 1959-04-07 | 1963-01-15 | Beckman Instruments Inc | Continuous flow centrifuge apparatus and rotor therefor |
US3145174A (en) * | 1961-11-01 | 1964-08-18 | Pennsdalt Chemicals Corp | Centrifuge having self-cleaning solids discharge |
US3191856A (en) * | 1962-03-27 | 1965-06-29 | Beckman Instruments Inc | Centrifuge rotor |
US3416726A (en) * | 1967-05-04 | 1968-12-17 | Dorr Oliver Inc | Bearing mounted overflow impeller |
US4210275A (en) * | 1977-08-19 | 1980-07-01 | Westfalia Separator Aktiengesellschaft | Continuously operating centrifugal separator |
US4929227A (en) * | 1987-10-16 | 1990-05-29 | Westfalia Separator Ag | Centrifuge drum for separating mixtures of liquids |
US9931646B2 (en) | 2011-09-08 | 2018-04-03 | Alfa Laval Corporate Ab | Centrifugal separator having a forcing device to create a radial leak flow |
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