GB1563586A - Separating device to separate two liquids of different specific gravity - Google Patents
Separating device to separate two liquids of different specific gravity Download PDFInfo
- Publication number
- GB1563586A GB1563586A GB7002/77A GB700277A GB1563586A GB 1563586 A GB1563586 A GB 1563586A GB 7002/77 A GB7002/77 A GB 7002/77A GB 700277 A GB700277 A GB 700277A GB 1563586 A GB1563586 A GB 1563586A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plates
- liquid
- plate
- flow
- tank
- 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
- 239000007788 liquid Substances 0.000 title claims abstract description 60
- 230000005484 gravity Effects 0.000 title claims abstract description 7
- 238000000926 separation method Methods 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims abstract description 3
- 238000011144 upstream manufacturing Methods 0.000 claims abstract 3
- 239000000470 constituent Substances 0.000 claims description 23
- 241000238634 Libellulidae Species 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000003595 mist Substances 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims description 2
- 238000000746 purification Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0208—Separation of non-miscible liquids by sedimentation
- B01D17/0211—Separation of non-miscible liquids by sedimentation with baffles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
Abstract
The apparatus serves in particular for the purification of a liquid by separating off oil of lower specific gravity contained therein. The apparatus has a separation unit (22) having inclined plates (10) arranged one above the other. These plates (10) have the shape of an inverted V in cross-section. In addition, upstream of the separation unit are provided upstream separation apparatuses (5, 6, 8) in which both the coarse fraction of the lighter liquid and relatively heavy solid particles are separated off from the heavier liquid. <IMAGE>
Description
(54) A SEPARATING DEVICE TO SEPARATE TWO LIQUIDS OF
DIFFERENT SPECIFIC GRAVITY
(71) I, LEENDERT WILLEM COR
NELIS DE JONG, a Dutch citizen, of
Westkade 27, Hellevoitsluis, The Netherlands, do hereby declare the invention, for which I pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement:
The invention relates to a separating device for separating liquid constituents of different specific gravity of a flow of liquid, for example, to clean a liquid by separating from its oil lighter than the liquid to be cleaned. Separators of this type are known which comprise a vessel with a separator unit having flow ways for the liquid spaced one above another and formed by a set of spaced, inclined plates of inverted-Vsection, the liquid entering the flow ways at the extremities of the plates.
According to the present invention, a separator for separating liquid constituents of a flow of liquid of different specific gravities, comprises a tank with an inlet for the flow of liquid, an outlet for a separated heavier liquid constituent, means for withdrawing from the tank a separated lighter liquid constituent floating on the top of the liquid in the tank and a separating unit mounted in the tank between the inlet and the outlet and comprising a set of spaced plates of inverted-V-shaped cross section whose ridge lines lie in a common vertical plane and are upwardly inclined, each plate having a pointed upper end portion whose profile is convergent in plan, its edges intersecting at a point in the ridge line of the plate, and the pointed upper end portion of each plate (except the uppermost) projecting forwardly beyond the corresponding end portion of the plate next above it, the plates defining between them a set of upwardlyinclined flow ways of inverted-V-shaped cross section arranged one above another through which the flow of liquid from the inlet passes, the arrangement being such that the liquid flow from the inlet enters the flow ways between the lower ends of the plates and the separated constituents leave the flow ways between the pointed upper end portions of the plates so that the separated lighter constituent rises to float on the top of the liquid in the tank for withdrawal by the said means.
In such a separator, the separated lighter liquid constituent is guided towards the liquid surface by the forwardly-projecting pointed end portions of the plates, and the heavier liquid constituent leaving the flow ways may flow away downwards at both sides of the pointed ends of the plates through the triangular gaps formed between the convergent edges of the pointed end portions of the plates and the side walls of the tank. By this a better separation may be achieved.
The invention may be carried into practice in various ways, but one specific embodiment thereof, comprising a device for cleaning a liquid by separating from it oil lighter than the liquid to be cleaned, in this case water, will now be described by way of example only and with reference to the accompanying drawings, in which:
Figure 1 is a longitudinal section of a separating device; and
Figure 2 is a section on the line II-II in
Figure 1.
The oil separating device illustrated comprises a tank 1 with an oil separator unit 2.
The tank is provided with an inlet 3 for the liquid to be cleaned and a discharge tube 4 for the cleaned liquid.
The liquid entering the tank 1 through the inlet 3 first flows under an inclined baffle 5 and then flows into a space between the baffle 5 and a second baffle 6 which is formed in such a way that its lower portion is substantially parallel to the baffle 5 and its upper portion diverges away to form a larger space 7, so that the velocity of the flow of the upwardly flowing liquid to be cleaned decreases as it passes through the space 7. As a result the heavier particles such as sand and the like suspended in the liquid flow will descend, and the free easyto-separate constituents such as light oil will tend to float upwardy in space. The resultant floating layer of light oil is withdrawn by means of a skimmer 8.
This skimmer 8 is adjusted in such a way that during removal of the oil the thickness of the oil layer remains constant. This can only be done when the viscosity of the oil is not too high. If it is, the oil skimmer 8 has to be turned manually.
After this first separation the now less soiled water flows slowly downwardly between the baffle 6 and a baffle 9 to the entrance of the separator unit proper 2, after which it will flow upwardly between the parallel inclined separator plates 10.
These plates 10, the upper of which is indicated at 11 and the lower of which is indicated at 12, are of inverted-V-shape in section as shown in Figure 2 with pointed upper ends. Thus the uppermost end portion 10A of the length of each plate is of convergent form, terminating in a point on the ridge line of the plate, and moreover the convergent end portion 10A of each plate 10, 12 projects forwardly beyond the tip of the corresponding end portion of the plate next above it, as is seen clearly in Figure 1.
At the entry into the separator unit 2 of the soiled liquid the smaller droplets of oil will collect as a mist under the slanting sides of each plate 10, the longitudinal edges of the plates 10 lying close to the opposite side walls of the tank 1 as shown in Figure 2.
At a certain stage an oil film will be formed by this continuous mist deposit.
The continuous growing oil film will become thicker and will go in a V-shaped movement towards the ridge line or crosssectional apex of each plate 10 as the result of the inverted-V-shape of the plates and the angle of about 15 degrees with the horizontal at which the ridge lines of the plates are inclined.
Towards the upper end of each inverted
V-shaped plate 10. the oil films collecting under both sides of the plate 10 will be joined to form a stream. At the pointed ends of the convergent portions 10A of the
V-shaped plates 10 the oil will leave the plates in the shape of big drops. These big drops will rise easily to the surface because of their size.
These drops then again form an oil layer at the surface which is removed bv a second skimmer 13.
The water leaving the separating unit 2 travels down under a driving baffle 14 and then up and out through an adjustable overflow 15, with a great degree of cleanness.
The number of plates 10 and the selected distance between the plates determine the capacity.
The plates may be pushed inwards by means of cams provided on the side walls of the tank so that all plates above the bottom
V-shaped plate 12 are removable.
The two skimmers 8 and 13 are connected with each other along a side wall by means of a duct so that only one outlet tube for the oil is necessary.
The levels of both skimmers 8 and 13 are adjustable by means of tube couplings at both ends of the skimmers.
The water overflow 15 is adjustable by turning a tube coupling (not shown) provided around the tube 4 after the bend.
It is easy to form the plates 10 into a
V-shape.
The baffle 9 is mounted slanting between the side walls.
WHAT WE CLAIM IS:
1. A separator for separating liquid constituents of a flow of liquid of different specific gravities, which comprises a tank with an inlet for the flow of liquid, an outlet for a separated heavier liquid constituent, means for withdrawing from the tank a separated lighter liquid constituent floating on the top of the liquid in the tank and a separating unit mounted in the tank between the inlet and the outlet and comprising a set of spaced plates of inverted-Vshaped cross section whose ridge lines lie in a common vertical plane and are upwardly inclined, each plate having a pointed upper end portion whose profile is convergent in plan, its edges intersecting at a point in the ridge line of the plate, and the pointed upper end portion of each plate (except the uppermost) projecting forwardly beyond the corresponding end portion of the plate next above it, the plates defining between them a set of upwardly-inclined flow ways of inverted-V-shaped cross section arranged one above another through which the flow of liquid from the inlet passes the arrangement being such that the liquid flow from the inlet enters the flow ways between the lower ends of the plates and the separated constituents leave the flow ways between the pointed upper end portions of the plates so that the separated lighter constituent rises to float on the top of the liquid in the tank for withdrawal by the said means.
2. A separator as claimed in Claim 1 in which a baffle plate is mounted in the tank downstream of the separating unit and extends downwardly through the liquid surface. and an overflow weir is provided in the tank downstream of the baffle plate, the separated heavier liquid constituent after leaving the flow ways being caused to flow
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (6)
1. A separator for separating liquid constituents of a flow of liquid of different specific gravities, which comprises a tank with an inlet for the flow of liquid, an outlet for a separated heavier liquid constituent, means for withdrawing from the tank a separated lighter liquid constituent floating on the top of the liquid in the tank and a separating unit mounted in the tank between the inlet and the outlet and comprising a set of spaced plates of inverted-Vshaped cross section whose ridge lines lie in a common vertical plane and are upwardly inclined, each plate having a pointed upper end portion whose profile is convergent in plan, its edges intersecting at a point in the ridge line of the plate, and the pointed upper end portion of each plate (except the uppermost) projecting forwardly beyond the corresponding end portion of the plate next above it, the plates defining between them a set of upwardly-inclined flow ways of inverted-V-shaped cross section arranged one above another through which the flow of liquid from the inlet passes the arrangement being such that the liquid flow from the inlet enters the flow ways between the lower ends of the plates and the separated constituents leave the flow ways between the pointed upper end portions of the plates so that the separated lighter constituent rises to float on the top of the liquid in the tank for withdrawal by the said means.
2. A separator as claimed in Claim 1 in which a baffle plate is mounted in the tank downstream of the separating unit and extends downwardly through the liquid surface. and an overflow weir is provided in the tank downstream of the baffle plate, the separated heavier liquid constituent after leaving the flow ways being caused to flow
beneath the baffle plate and then over the weir to the outlet, and the means for withdrawing the separated lighter liquid constituent being located between the baffle plate and the inlet.
3. A separator as claimed in Claim 1 or
Claim 2 including a preliminary separating device of baffle type providing an upwardlydivergent flow passage and being disposed in the path of the liquid flow in the tank upstream of the separating unit.
4. A separator as claimed in Claim 3 including a deflector plate mounted in the tank and extending downwardly through the liquid surface towards the uppermost plate of the separating unit, in a position to deflect the liquid flow leaving the preliminary separating device into the flow ways between the lower ends of the inclined plates.
5. A separator as claimed in Claim 4 in which the longitudinal edges of the plates of the separating unit lie close to the opposite side walls of the tank.
6. A separator substantially as specifically described herein with reference to the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7601702A NL7601702A (en) | 1976-02-19 | 1976-02-19 | SEPARATION DEVICE FOR SEPARATING TWO LIQUIDS OF DIFFERENT TYPES OF WEIGHT. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1563586A true GB1563586A (en) | 1980-03-26 |
Family
ID=19825651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7002/77A Expired GB1563586A (en) | 1976-02-19 | 1977-02-18 | Separating device to separate two liquids of different specific gravity |
Country Status (8)
| Country | Link |
|---|---|
| AT (1) | AT366289B (en) |
| BE (1) | BE851522A (en) |
| CH (1) | CH618886A5 (en) |
| DE (1) | DE2706642C3 (en) |
| FR (1) | FR2341345A1 (en) |
| GB (1) | GB1563586A (en) |
| IT (1) | IT1082466B (en) |
| NL (1) | NL7601702A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2469948A1 (en) * | 1979-11-20 | 1981-05-29 | Nordstjernan Rederi Ab | METHOD AND DEVICE FOR INTRODUCING AND DISPENSING COMPOSITE LIQUIDS IN A LAMINARY SEPARATION APPARATUS |
| GB2275210A (en) * | 1993-02-17 | 1994-08-24 | Oekologia Beteiligungs Handels | Regenerating of degreasing liquid |
| GB2276561A (en) * | 1993-04-02 | 1994-10-05 | Squid Systems Pty Ltd | Continuous separation of immiscible liquids |
| WO1998001395A1 (en) * | 1995-06-26 | 1998-01-15 | Terje Johan Myrhaug | Oil/grease separator |
| CN115502064A (en) * | 2022-09-19 | 2022-12-23 | 浙江嘉柯新材料科技有限公司 | Antifouling type waterborne synthetic leather and production facility thereof |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3024681A1 (en) * | 1980-06-30 | 1982-01-28 | Schloemann-Siemag AG, 4000 Düsseldorf | Rolling mill spent oil purifier - based on sedimentation and flotation in sectionalised reservoir |
| DE3043254A1 (en) * | 1980-11-15 | 1982-07-08 | Robert Bosch Gmbh, 7000 Stuttgart | METHOD FOR CLEANING NEUTRALIZED INDUSTRIAL WASTEWATER AND DEVICE FOR IMPLEMENTING THE METHOD |
| NL8100955A (en) * | 1981-02-27 | 1982-09-16 | Pielkenrood Vinitex Bv | MULTI-PHASE SEPARATOR. |
| SE445710B (en) * | 1984-11-01 | 1986-07-14 | Hyosong M Lee | DEVICE FOR CONTINUOUS SEPARATION OF A LIQUID MIXTURE, INCLUDING A LIGHTER AND A Lighter Phase |
| FR2654950B1 (en) * | 1989-11-29 | 1992-03-06 | Saint Dizier Ste Cale | COALESCENCE OIL-WATER SEPARATOR. |
| DE4231790B4 (en) * | 1992-09-23 | 2006-10-05 | Fariwar-Mohseni, Ursula | Apparatus for the treatment of waste water |
| FR2726482B1 (en) * | 1994-11-09 | 1997-01-31 | Prefaest Sa | HIGH SEPARATION LIQUID SEPARATOR |
| DE19850320C2 (en) * | 1998-11-02 | 2002-09-26 | Hans Huber Ag Masch & Anlagenb | Compact system for the mechanical treatment of waste water |
| FR2855070B1 (en) * | 2003-05-21 | 2006-09-01 | Eparco Assainissement | DECANTER, IN PARTICULAR FOR THE PRIMARY TREATMENT OF DOMESTIC EFFLUENTS OR THE LIKE |
| DE102013114380B4 (en) * | 2013-12-18 | 2021-12-30 | Endress+Hauser (Deutschland) Gmbh+Co. Kg | Device for the detection of a non-conductive liquid in water |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2613811A (en) * | 1948-12-09 | 1952-10-14 | Standard Oil Dev Co | Continuous settling apparatus |
| US3558482A (en) * | 1968-07-31 | 1971-01-26 | Smith Ind Inc | Water purification |
| AT300687B (en) * | 1970-07-13 | 1972-08-10 | Internat Pollution Control Sys | Device for the separation of oil from oily liquids, in particular ship bilges of pleasure boats or the like. |
-
1976
- 1976-02-19 NL NL7601702A patent/NL7601702A/en not_active Application Discontinuation
-
1977
- 1977-02-16 FR FR7704384A patent/FR2341345A1/en not_active Withdrawn
- 1977-02-17 BE BE175008A patent/BE851522A/en unknown
- 1977-02-17 DE DE2706642A patent/DE2706642C3/en not_active Expired
- 1977-02-17 CH CH210477A patent/CH618886A5/en not_active IP Right Cessation
- 1977-02-18 AT AT0110877A patent/AT366289B/en not_active IP Right Cessation
- 1977-02-18 GB GB7002/77A patent/GB1563586A/en not_active Expired
- 1977-02-18 IT IT67371/77A patent/IT1082466B/en active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2469948A1 (en) * | 1979-11-20 | 1981-05-29 | Nordstjernan Rederi Ab | METHOD AND DEVICE FOR INTRODUCING AND DISPENSING COMPOSITE LIQUIDS IN A LAMINARY SEPARATION APPARATUS |
| GB2275210A (en) * | 1993-02-17 | 1994-08-24 | Oekologia Beteiligungs Handels | Regenerating of degreasing liquid |
| GB2276561A (en) * | 1993-04-02 | 1994-10-05 | Squid Systems Pty Ltd | Continuous separation of immiscible liquids |
| WO1998001395A1 (en) * | 1995-06-26 | 1998-01-15 | Terje Johan Myrhaug | Oil/grease separator |
| CN115502064A (en) * | 2022-09-19 | 2022-12-23 | 浙江嘉柯新材料科技有限公司 | Antifouling type waterborne synthetic leather and production facility thereof |
| CN115502064B (en) * | 2022-09-19 | 2023-06-09 | 浙江嘉柯新材料科技有限公司 | Antifouling type waterborne synthetic leather and production equipment thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| ATA110877A (en) | 1981-08-15 |
| DE2706642B2 (en) | 1981-07-02 |
| FR2341345A1 (en) | 1977-09-16 |
| CH618886A5 (en) | 1980-08-29 |
| IT1082466B (en) | 1985-05-21 |
| DE2706642C3 (en) | 1982-09-09 |
| DE2706642A1 (en) | 1977-09-01 |
| AT366289B (en) | 1982-03-25 |
| BE851522A (en) | 1977-08-17 |
| NL7601702A (en) | 1977-08-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |