US3432092A - Self-cleaning centrifugal separator - Google Patents

Self-cleaning centrifugal separator Download PDF

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Publication number
US3432092A
US3432092A US573540A US3432092DA US3432092A US 3432092 A US3432092 A US 3432092A US 573540 A US573540 A US 573540A US 3432092D A US3432092D A US 3432092DA US 3432092 A US3432092 A US 3432092A
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US
United States
Prior art keywords
bowl
liquid
separator
compartment
centrifugal separator
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
Application number
US573540A
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English (en)
Inventor
Joseph Antoine Noel Rousselet
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Individual
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Individual
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Filing date
Publication date
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Publication of US3432092A publication Critical patent/US3432092A/en
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    • 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
    • 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
    • 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
    • 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
    • B04B11/02—Continuous feeding or discharging; Control arrangements therefor

Definitions

  • the present invention aims at obviating such drawbacks.
  • a centrifugal separator comprising a conical bowl with a wide mouth which discharges the purified liquid by means of a system of radial pipes combined, 0n the one hand, with an arrangement of a tangential spoon automatically moving forwards and backwards at intervals, which allows removing automatically any thick or viscous sedimental deposit while the apparatus is operating and discharging continuously, and, On the other hand, with further adjustable radial pipes and an additional annular separator for discharging a heavier liquid when separating two liquids having different densities.
  • the conical bowl is divided into two or three compartments by means of one or two annular separators provided with ports which allow the heavy liquid ingredients and the deposit to pass into the last compartment which is smaller.
  • Flow pipes are radially secured to the wall of the separator on the side of the larger compartment and discharge the lighter liquid under the action of centrifugal force when the bowl is rotating.
  • the small compartment of the bowl is located towards the base of the cone and houses a big spoon or scoop which operates and travels intermittently to remove the thick or viscous deposits stuck against the side wall of the bowl.
  • said small compartment houses one or more suction devices which remove, continuously or discontinuously, the liquid in excess or the second liquid heavier than that discharged through the pipes, in order either to empty said compartment before or during the operation of the big spoon, or to recover the heavier liquid.
  • the axis of the centrifugal separator can be either vertical or horizontal, this latter position ensuring however a better gravity dischage of the deposit when the thick liquid is being separated.
  • the thick deposit moves after settling on the wall of the bowl and passes through the ports of the annular separator or separators so as to collect in the small compartment from which it is steadily picked up by the spoon.
  • the settling of the deposit onto the wall of the bowl and the discharge of the liquid are not disturbed although the removal of the deposit is effected by the spoon.
  • FIGURE 1 is an elevational side view of the separator of the invention.
  • FIGURE 2 is a sectional view taken along line 2-2 of FIGURE 1.
  • the conical bowl 2 is divided into three compartments 3, 4, 5 by means of two annular separators 6, 7.
  • Discharge pipes 8 are radially secured to the wall of the separator 6 on the side of the compartment 3, and allow the lighter liquid 9 to be discharged when the bowl is rotating. To this end, said pipes have lengths such that they pass through the layer of sediment 10, the layer of dense liquid 11, and into a layer 9 of lighter liquid.
  • the annular separator 6 is provided with ports 12 distributed over the periphery thereof at a height lower than the thickness of the sediment layer 10, said ports allowing the said sediment 10 to pass into the compartment 4 as a result of the force exerted by the liquid 9. Furthermore, if necessary, a small suction device 13, the head of which is housed inside the compartment 4, sucks the liquid to be drained.
  • the additional annular separator 7 is used when a heavy liquid must be separated. It includes ports 15 provided at a height lower than the thickness of the layer 11 of heavy liquid. Pipes 14 are secured to said separator inside the compartment 3 and pass through the layers 10 and 11.
  • the height of the pipes 8 can be adjusted so as to correspond to the different levels of said liquids.
  • a big spoon 16 is housed inside the compartment 4 and for removing the sedimental deposit 10. The extent of its penetration into the layer of sediment, its operation and its retraction are controlled in steps either manually or automatically.
  • a feed tube 17 disposed axially of the apparatus opens into a spray cone 20 which distributes the liquid to be purified over the bottom 18 of the bowl 2. At the time when the sediment is removed by the spoon 16, the feeding of said liquid through said tube 17 can be stopped if required.
  • the bowl 2 with its bottom 18 and its spray cone 20 is secured to a shaft 19.
  • Said bowl is surrounded by a casing 2.1 having a circular cross-sectional shape and a portion 22 of larger diameter. Centrifugal force throws the light liquid 9 and the heavy liquid 11 into said portion 22 on their discharge from the flow pipe 8 or 14, depending on whether one liquid or two liquids are being separated.
  • Pipes 23 and 24 allow respective discharge of the light liquid and the heavy liquid which flow by gravity.
  • the casing 21 When two liquids are being separated, the casing 21 includes a wall 25, the heavy liquid flowing out through the pipe 24 while the light liquid flows out through the pipe 23.
  • the casing 21 is also provided with a projecting portion 26 which ensures the tightness thereof by means of a door 27 which includes sight holes. Said door is removable in order to give access to the inner bowl 2.
  • the centrifugal separator of the invention ensures the continuous and steady separation of the liquids fed therein, without any risk of the sediment clogging it.
  • An overflow centrifuge comprising a conical bowl having a large opening, means for the introduction into said bowl, via said opening, of raw liquid from which fractions of various densities are to be separated, said bowl being driven in rotation whereby the fractions are separated into layers of varying densities which decrease from the inner peripheral surface of the bowl radially inwards into the bowl, an annular separator in said bowl at the inner peripheral surface thereat, said separator extending radially inwards at the inner surface of the bowl to form first and second compartments thereat, said separator extending to a depth in said bowl to retain all the liquid in the first compartment, said separator having openings at the level of the heavier fractions to permit passage only thereof through the separator, a radial pipe secured to the bowl for rotation therewith, said pipe having a first open end in the first compartment at the level of the light fraction to be separated from the liquid, and an opposite open and external of the bowl for the discharge of said light fraction from the bowl, a stationary housing outside said bowl with an outlet for the separate conveyanc
  • a centrifuge as claimed in claim 1 comprising a second separator in said first compartment adjacent the first separator to define a third compartment between the separators, said second separator having openings to permit passage therethrough of fractions heavier than that of the light fraction to be separated, a second radial pipe secured to the bowl for rotation therewith and having a first open end in said third compartment at a level of a second fraction to be separated which is heavier than that of said first fraction, said second pipe having a second open end external of said bowl for discharge of said second fraction, said housing having a second outlet isolated from the first said outlet for the separate discharge of said second fraction.
  • a centrifuge as claimed in claim 1 comprising suction means extending into said second compartment for removing the fraction therein.

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  • Centrifugal Separators (AREA)
US573540A 1965-09-07 1966-08-19 Self-cleaning centrifugal separator Expired - Lifetime US3432092A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR46368A FR1459082A (fr) 1965-09-07 1965-09-07 Centrifugeuse

Publications (1)

Publication Number Publication Date
US3432092A true US3432092A (en) 1969-03-11

Family

ID=9694522

Family Applications (1)

Application Number Title Priority Date Filing Date
US573540A Expired - Lifetime US3432092A (en) 1965-09-07 1966-08-19 Self-cleaning centrifugal separator

Country Status (4)

Country Link
US (1) US3432092A (fr)
DE (1) DE1532730A1 (fr)
FR (1) FR1459082A (fr)
GB (1) GB1094025A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018474A3 (fr) * 1979-03-15 1981-12-30 Robert Edward High Centrifuge pour la séparation continue de mélanges liquide-particules solides

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53126079U (fr) * 1977-03-17 1978-10-06
JPS5516852U (fr) * 1978-07-18 1980-02-02
DK268283D0 (da) * 1983-06-10 1983-06-10 Metrofoss Ks Fremgangsmade og apparat til separation af bakterier
US6179523B1 (en) 1995-12-29 2001-01-30 Shell Oil Company Method for pipeline installation
GB0621614D0 (en) * 2006-10-31 2006-12-06 Mozley Ltd Improvements in and relating to solids sparators

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US347702A (en) * 1886-08-17 Half to david h
US1176412A (en) * 1913-05-02 1916-03-21 David B Weston Centrifugal separator.
US1481426A (en) * 1924-01-22 Entirb
US1754774A (en) * 1927-11-16 1930-04-15 Sharples Specialty Co Separation of mixtures
US2199848A (en) * 1931-08-14 1940-05-07 Tandy A Bryson Centrifugal mechanism
US3333765A (en) * 1963-06-25 1967-08-01 Turbo Separator Ag Centrifuge for separating solids from liquids

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US347702A (en) * 1886-08-17 Half to david h
US1481426A (en) * 1924-01-22 Entirb
US1176412A (en) * 1913-05-02 1916-03-21 David B Weston Centrifugal separator.
US1754774A (en) * 1927-11-16 1930-04-15 Sharples Specialty Co Separation of mixtures
US2199848A (en) * 1931-08-14 1940-05-07 Tandy A Bryson Centrifugal mechanism
US3333765A (en) * 1963-06-25 1967-08-01 Turbo Separator Ag Centrifuge for separating solids from liquids

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018474A3 (fr) * 1979-03-15 1981-12-30 Robert Edward High Centrifuge pour la séparation continue de mélanges liquide-particules solides

Also Published As

Publication number Publication date
GB1094025A (en) 1967-12-06
FR1459082A (fr) 1966-04-29
DE1532730A1 (de) 1970-02-26

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