DK141535B - Method and apparatus for removing a water-floating layer of contaminants. - Google Patents

Method and apparatus for removing a water-floating layer of contaminants. Download PDF

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Publication number
DK141535B
DK141535B DK642074AA DK642074A DK141535B DK 141535 B DK141535 B DK 141535B DK 642074A A DK642074A A DK 642074AA DK 642074 A DK642074 A DK 642074A DK 141535 B DK141535 B DK 141535B
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Denmark
Prior art keywords
cyclone
water
contaminants
vortex
intake
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DK642074AA
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Danish (da)
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DK141535C (en
DK642074A (en
Inventor
Jacques Amedee Pichon
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Alsthom Cgee
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
    • E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
    • E02B15/10—Devices for removing the material from the surface
    • E02B15/107—Whirling means forming a vortex in the water; cyclones
    • 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

Description

1A15351A1535

Den foreliggende opfindelse angår en fremgangsmåde til fjernelse af lag af forureningeprodukter, som flyder på en tungere væske, navnlig et lag af olie flydende på vand, ved hvilken en passende overfladelag-5 tykkelse af vandmassen med de herpå flydende forureningsprodukter ved hjælp af en ledeflade, hvis fri endekant er beliggende nær vandets fri overflade, opsamles og ledes til en indtagsåbning i en cyklon under dannelse af en kontinuert strømning med passende stor strømnings-10 hastighed, og hvor de forurenende produkter i cyklonen koncentreres i en central aksialzone under separation af vandet og forureningsprodukterne, idet de udseparerede forureningsprodukter udledes gennem et rør, som indmunder aksialt i cyklonkammerets overvæg, medens 15 det rensede vand udtømmes gennem et udledningsorgan ved cyklonens ned udgangsåbning.The present invention relates to a method for removing layers of contaminants flowing on a heavier liquid, in particular a layer of water floating on water, in which a suitable surface layer thickness of the water mass with the contaminating liquids thereon is provided by a guide surface. whose free end edge is located near the free surface of the water, is collected and directed to an inlet opening in a cyclone to form a continuous flow at a suitably large flow rate and where the contaminant products of the cyclone are concentrated in a central axial zone during separation of the water and the contaminated products, the discharged contaminants being discharged through a tube which axially opens into the overlap of the cyclone chamber, while the purified water is discharged through a discharge means at the downward opening of the cyclone.

Et apparat virkende efter denne fremgangsmåde er f.eks. beskrevet i det tyske fremlæggelsjssskrift nr. 21 49 171, hvor virkemåden imidlertid er baseret 20 på, at der forefindes en betydelig relativ hastighedsforskel Imellem vandmassen og udskillelsesapparatet frembragt enten ved, at apparatet bugseres med en hastighed på mindst 3-4 knob igennem det forurenede vandområde, eller ved, at apparatet holdes stationært i 25 vand, som strømmer forbi med mindst denne absolutte hastighed.An apparatus operating in accordance with this method is e.g. disclosed in German disclosure no. 21 49 171, however, the mode of operation is based on the existence of a significant relative velocity difference between the water mass and the separator produced either by towing the apparatus at a rate of at least 3-4 knots through the contaminated water area. , or know that the apparatus is held stationary in 25 water flowing by at least this absolute speed.

Til forskel herfra er fremgangsmåden ifølge opfindelsen ejendommelig ved, at det forurenede vands indstrømning i cyklonen tilvejebringes ved en direkte 30 udpumpning af henholdsvis renset vand og forureningsprodukter fra henholdsvis den nederste og den øverste ende af cyklonen, idet indstrømningen i cyklonen herunder reguleres således, at der dannes en hvirvel i væskestrømmen foran og oven over cyklonens indtagsåbning 35 stabiliseret i et forud fastlagt niveau.In contrast, the process according to the invention is characterized in that the inflow of the contaminated water into the cyclone is provided by a direct pumping out of purified water and contaminants respectively from the lower and the upper end of the cyclone, the inflow of the cyclone being regulated below such that a vortex is formed in the liquid stream in front of and above the intake opening 35 of the cyclone stabilized at a predetermined level.

Herved opnås, at gennemførelse af rensningen ikke er betinget af en relativ hastighed mellem det anvendte apparat og det omgivende vand, og desuden fås 2Hereby it is achieved that the purification is not conditional on a relative speed between the apparatus used and the surrounding water, and in addition 2

U153BU153B

der ved hjælp af den foran og over indgangsåbningen til cyklonen etablerede hvirvel en indstrømningstærskel, der frembringer en kontinuerlig strømning med stærkt forøget strømningshastighed gennem cyklonens indtags-5 åbning til sikring af en effektiv cyklonvirkning, hvis konstans sikres ved, at den foran indgangsåbningen tilvejebragte hvirvel hele tiden holdes i et konstant ønsket niveau under vandoverfladen.which, by means of the vortex established in front of and above the inlet opening, provides an inflow threshold which produces a continuous flow with greatly increased flow rate through the intake opening of the cyclone to ensure an efficient cyclone effect, the constancy of which is provided by the vortex the time is kept at a constant desired level below the water surface.

Den hertil nødvendige regulering kan, som 10 det vil fremgå af det følgende, ske enten ved styring af den ene af eller begge de anvendte pumper ud fra en afføling af hvirvlens niveau under vandspejlet, eller ved et eller flere vandindtag i en egnet del af en væg i apparatet i et niveau under vandspejlet.The control required for this may, as will be apparent from the following, be effected either by controlling one or both of the pumps used from a sensing of the level of the vortex below the water level, or by one or more water inlets in a suitable part of a wall of the apparatus at a level below the water level.

15 Opfindelsen omfatter også apparater til gennem førelse af fremgangsmåden ifølge opfindelsen.The invention also includes apparatus for carrying out the method according to the invention.

Sådanne apparater er af den art, som har en ledeflade, hvis frie endekant er indrettet til at være beliggende nær ved, men et passende stykke under vand-20 spejlet imellem to lodrette konvergerende vægge, der leder til en indtagsåbning i en cyklon og kan bevirke en strømmende væskeføring gennem denne, der fremkalder en hvirvelstrømning i cyklonen til separation ved centrifugering af vandet og forureningsprodukter, idet 25 disse sidste koncentreres i en central aksialzone og kan bortledes opad fra denne, medens det fra forureningsprodukter befriede vand kan bortledes gennem et forneden værende udledningsorgan.Such apparatus is of the kind having a guide surface, the free end edge of which is arranged to be adjacent, but a suitable portion below the water mirror between two vertical converging walls leading to an inlet opening in a cyclone and capable of a flowing fluid flow through it which produces a vortex flow in the cyclone for separation by centrifugation of the water and contaminants, the latter being concentrated in a central axial zone and discharged upwardly therefrom, while the water liberated from contaminants can be discharged through a downstream discharge means .

Et sådant apparat omfatter ifølge opfindelsen 30 pumper til bortsugning af henholdsvis de udseparerede forureningsprodukter og det rensede vand, og der findes desuden midler til regulering af indtagsåbningens kapacitet på en sådan måde, at den af den nævnte ledeflade fremkaldte vandrette hvirvel foran og ved overkanten 35 af indtagsåbningen kan holdes beliggende i et bestemt ønsket niveau under vandfladen.According to the invention, such an apparatus comprises 30 pumps for suctioning the separated pollution products and the purified water, respectively, and there are also means for controlling the capacity of the inlet opening in such a way that the horizontal vortex produced by said guide surface 35 and above the inlet opening may be maintained at a desired level below the water surface.

I en anden udførelsesform for et apparat til gennemførelse af fremgangsmåden ifølge opfindelsen er 3 14153$ ledefladen udformet som en omkring cyklonen løbende skålformet skillevæg, der sammen med lodrette, i forhold til cyklonsvøbet tangentiale ledevægge kan styre væsken mod cyklonens indtags&bninger. Der fremkommer 5 herved et apparat, der kan udøve en alsidig tilsugning af det forurenede vand, som således fra alle sider strømmer ind imod og behandles af apparatet, medens det rensede vand afgår centralt fra apparatets bund.In another embodiment of an apparatus for carrying out the method according to the invention, the guide surface is formed as a bowl-shaped partition running around the cyclone, which together with vertical tangential guide walls relative to the cyclone shell can guide the liquid against the cyclone inlets. There is thus provided an apparatus which can exert a versatile suction of the contaminated water, which thus flows from and from all sides towards and treated by the apparatus, while the purified water leaves centrally from the bottom of the apparatus.

De til regulering af cyklonindtagsåbningens 10 kapacitet tjenende midler kan ifølge opfindelsen bestå af supplerende vandindtag i cyklonbeholderens svøb eller i en anden udførelse af tangentiale rør, der fører vand fra et område under forureningslaget tangentialt ind i cyklonen i den dér herskende rotationsretning.The means for regulating the capacity of the cyclone intake opening 10 according to the invention may consist of supplementary water intake in the casing of the cyclone container or in another embodiment of tangential tubes which carry water from an area below the contamination layer tangentially into the cyclone in the prevailing direction of rotation.

15 Disse midler kan med de udførelser af apparatet, hvor ledepladen udgøres af en cyklonkammeret omgivende skillevæg, bestå af huller i den nedre del af denne til indføring af rent vand i den over skillevæggen løbende strøm af forurenet vand.These means, with those embodiments of the apparatus in which the baffle is constituted by a cyclone chambered surrounding partition, may consist of holes in the lower part thereof for introducing clean water into the stream of contaminated water running over the partition wall.

20 De til regulering af cyklonindtagsåbningens kapa·· citet tjenende midler kan imidlertid også - alene eller i kombination med de ovenfor angivne - bestå af organer til afføllng af niveauet af den foran og ved overkanten af indtagsåbningen beliggende hvirvel og til heraf af-25 hængig styring af den ene af eller begge apparatets to pumper. Herved fås en meget sikker og direkte beher* skelse af strømningsforholdene, hvorved det f.eks. med sikkerhed undgås, at kraftige bølger med dybtgående bølgedale, der kan blotlægge ledefladen, medfører tømning 30 af cyklonen og dermed standsning af dennes funktion.However, the means used to regulate the capacity of the cyclone intake opening may also - alone or in combination with the above - be comprised of means for sensing the level of the vortex located in front and at the top of the intake opening and dependent thereon. of one or both of the two pumps of the apparatus. This provides a very safe and direct control of the flow conditions. it is safe to avoid that strong waves with deep wave valleys that can expose the guide surface will cause emptying of the cyclone and thereby stopping its operation.

I det følgende beskrives opfindelsen nærmere ved hjælp af udførelseseksempler under henvisning til den skematiske tegning, hvor fig. 1 viser et apparat ifølge opfindelsen set 35 i perspektiv, fig. 2 en variation af apparatet ifølge opfindelsen i perspektiv, og fig, 3 endnu en variation af apparatet ifølge 141536 4 opfindelsen i perspektiv.In the following, the invention will be described in more detail by way of example with reference to the schematic drawing, in which fig. 1 is a perspective view of an apparatus according to the invention, 35; 2 is a perspective view of a variation of the apparatus according to the invention, and FIG. 3 is a further variation of the apparatus of the invention in perspective.

Fig. 1 viser en plan lodret væg 1 og en lodret væg 2 med en indre buet overflade 3, der sammen med væggen 1 danner en tragt hen mod en cyklon 4, 5 hvilken konstruktion holdes nedsænket i et ønsket niveau under vandspejlet af ikke viste flydelegemer og holdes på plads i den vandmasse, som skal renses, og som på overfladen bærer et lag af forureningsprodukter 5, f.eks. olie.FIG. 1 shows a planar vertical wall 1 and a vertical wall 2 with an inner curved surface 3, which together with the wall 1 forms a funnel towards a cyclone 4, which construction is kept submerged at a desired level below the water level of floating bodies not shown and kept in place in the body of water to be purified and carrying on the surface a layer of contaminants 5, e.g. oil.

10 Mellem de sammenløbende skillevægge findes en ledeflade 6, hvis frie endekant 7 er placeret lidt under forureningslaget, og som støder op til den nedre kant af en tangential indtagsåbning 8 til cyklonen 4.10 Between the contiguous partitions is a guide surface 6, the free end edge 7 of which is located slightly below the contamination layer, and adjacent to the lower edge of a tangential intake opening 8 to the cyclone 4.

15 Indstrømningen af væske i cyklonen 4's indre gennem den tangentiale indtagsåbning 8, der ligger under den fri overflade, fylder cyklonen til den øvre væg, og væskerotationen i cyklonens indre, der bevirker separation af forureningsprodukter og vand, 20 frembringes på denne måde af en pumpe 9 på et rør 17, som udgår fra cyklonens nedre afgangsåbning 18.The flow of liquid into the interior of the cyclone 4 through the tangential inlet opening 8 below the free surface fills the cyclone to the upper wall, and the liquid rotation in the interior of the cyclone causing separation of contaminants and water is produced in this way by a pump. 9 on a pipe 17 which exits the lower outlet opening 18 of the cyclone.

Det er nødvendigt, at der over ledefladen 6 dannes en kontinuert strømning med stor hastighed, som frembringer en hvirvel 11 under den frie vandflades 25 niveau, hvilken hvirvels position er stabiliseret på et konstant niveau over indtagsåbningen 8.It is necessary that a high velocity continuous flow is created above the guide surface 6 which produces a vortex 11 below the level of the free water surface 25, the position of the vortex being stabilized at a constant level above the intake opening 8.

Hvirvelstabiliseringen sker ved hjælp af et tangentialt suppleringsvandindtag 12, som er i direkte forbindelse med vandmassen, og hvis kapacitet som en 30 funktion af det ydre væskeniveaus højde over hvirvlen 11 tilpasser sig i forhold til den gennem åbningen 8 strømmende væskemængde på en måde, der automatisk kompenserer for fluktuationerne i hvirvlen 11's niveau.The vortex stabilization is effected by means of a tangential supplementary water inlet 12 which is directly in contact with the water mass and whose capacity as a function of the height of the outer fluid level above the vortex 11 adapts to the fluid flowing through the orifice 8 in a manner which automatically compensates for the fluctuations in the level of vortex 11.

På den anden side kan ledefladens indgangsende 35 7 som følge af dybe bølgedale blotlægges kortvarigt, hvorved der ingen væske strømmer ned langs ledefladen 6 ind i cyklonen, der således indsuger luft og tømmes for vand, hvilket standser dens funktion.On the other hand, as a result of deep waves, the entrance end of the guide surface 7 can be exposed briefly, whereby no liquid flows down along the guide surface 6 into the cyclone, which thus sucks air and empties water, which stops its operation.

5 1415365 141536

Suppleringsvandindtaget 12 i cyklonens bund gør det muligt at afhjælpe denne ulempe, da det er i direkte forbindelse med vandmassen under vandspejlet, og derfor altid automatisk vil sikre vandtilførsel til 5 cyklonen.The supplementary water intake 12 in the bottom of the cyclone makes it possible to remedy this disadvantage since it is in direct contact with the water mass below the water level, and therefore will always automatically ensure water supply to the cyclone.

Under påvirkning af pumpen 9’s sugning danner der sig i cyklonens indre en hvirvelzone, som ved sin cyklonrotation bevirker en central aksialkoncentration 13 af forureningsprodukter, hvilke produkter 10 fuldstændig frigjort fra vand opsuges ved hjælp af en pumpe 15 gennem et centralt rør 14, der udgår fra den øvre væg 20 i cyklonen, for gennem et rør 16 at løbe ud i en opbevaringsbeholder.Under the influence of the suction of the pump 9, a vortex zone forms in the interior of the cyclone which, in its cyclone rotation, causes a central axial concentration 13 of contaminants, which products 10 completely released from water are sucked up by a pump 15 through a central pipe 14 starting from the upper wall 20 of the cyclone to pass through a tube 16 into a storage container.

Det i bundet af cyklonen samlede vand udsuges 15 af pumpen 9 og udstødes gennem røret 19 i det omgivende vand.The water collected in the bottom of the cyclone 15 is sucked out by the pump 9 and ejected through the pipe 19 into the surrounding water.

Den automatiske regulering af cyklonens indtagskapacitet, der sker gennem suppleringsvandindtaget 12, kan realiseres på en anden måde ved en niveau-20 detektor for hvirvlen 11, som styrer ydelsen af en af de to pumpper 9 og 15, så at hvirvlen stabiliseres på et ønsket konstant niveau.The automatic control of the cyclone's intake capacity, which occurs through the supplementary water inlet 12, can be realized in a different way by a level detector for the vortex 11, which controls the performance of one of the two pumps 9 and 15, so that the vortex is stabilized at a desired constant. level.

Som fig. 2 viser, kan der oven over ledefladen 6 tilføjes en dækflade 21 af egnet udformning med 25 det formål at forbedre væskens indstrømning i cyklonen.As FIG. 2 shows, above the guide surface 6, a cover surface 21 of suitable design can be added for the purpose of improving the flow of liquid into the cyclone.

Hvirvlen 11 dannes herved i kontakt med dækfladen 21.The swirl 11 is thereby formed in contact with the cover surface 21.

Apparaterne ifølge fig. 1 og 2 er især fordelagtige til rensning af snævre områder, f.eks. i havne 30 mellem skibsskrog eller andre forhindringer.The apparatus of FIG. 1 and 2 are particularly advantageous for cleaning narrow areas, e.g. in ports 30 between ship hulls or other obstacles.

Den konvergerende indgangsåbning, som væggene 1 og 3 danner, kan erstattes af en rundt om cyklonen gående skålformet skillevæg 22, som vist i fig.The converging inlet opening formed by walls 1 and 3 can be replaced by a bowl-shaped partition 22 extending around the cyclone, as shown in FIG.

3, med lodrette ledevægge 23, der tangerer cyklon-35 kroppen 4 og leder væsken mod cyklonens indtagsåbninger 24. Apparatet holdes nedsænket i et ønsket niveau af ikke viste flydeorganer. Denne udformning egner sig til en cirkelformet rensning i områder uden3, with vertical guide walls 23 tangent to the cyclone body 4 and directing the liquid towards the cyclone intake openings 24. The apparatus is kept submerged in a desired level of floating means not shown. This design is suitable for circular cleaning in areas without

Claims (8)

141535 forhindringer. I denne udformning består suppleringsvandindtagene, der har til formål automatisk at regulere cyklonens ind-fødningskapacitet, af åbninger 25 i den nedre del af 5 skillevæggen 22.141535 obstacles. In this embodiment, the supplementary water inlets, which are intended to automatically regulate the feeding capacity of the cyclone, consist of openings 25 in the lower part of the partition wall 22. 1. Fremgangsmåde til fjernelse af lag af forureningsprodukter, som flyder på en tungere væske, navnlig et lag af olie flydende på vand, ved hvilken en passende overfladelagtykkelse af vandmassen med de herpå 10 flydende forureningsprodukter ved hjælp af en ledeflade (6), hvis fri endekant (7) er beliggende nær vandets fri overflade, opsamles og ledes til en indtagsåbning (8) i en cyklon (4) under dannelse af en kontinuert strømning med passende stor strømningshastighed, og 15 hvor de forurenende produkter i cyklonen koncentreres i en central aksialzone under separation af vandet og forureningsprodukterne, idet de udseparerede forureningsprodukter udledes gennem et rør (14), som indmunder aksialt i cyklonkammerets overvæg, medens det rensede 20 vand udtømmes gennem et udledningsorgan (9) ved cyklonens nedre udgangsåbning, kendetegnet ved, at det forurenede vands indstrømning i cyklonen tilvejebringes ved en direkte udpumpning af henholdsvis renset vand og forureningsprodukter fra henholdsvis den 25 nederste og den øverste ende af cyklonen, idet indstrømningen i cyklonen herunder reguleres således, at der dannes en hvirvel (11) i væskestrømmen foran og oven over cyklonens indtagsåbning (8, 24) stabiliseret i et forud fastlagt niveau.A method for removing layers of contaminants floating on a heavier liquid, in particular a layer of oil floating on water, wherein a suitable surface layer thickness of the body of water with the subsequent liquid contaminants using a guide surface (6), if free end edge (7) located near the free surface of the water is collected and directed to an inlet opening (8) in a cyclone (4) to form a continuous flow at a suitably high flow rate, and where the contaminants in the cyclone are concentrated in a central axial zone. during separation of the water and the contaminants, the separated contaminants being discharged through a pipe (14) which opens axially in the overlap of the cyclone chamber, while the purified water is discharged through a discharge means (9) at the lower outlet opening of the cyclone, characterized in that the contaminated water inflow into the cyclone is provided by a direct pumping out of purified water and contamination products respectively Occasionally, the 25 lower and upper ends of the cyclone, the inflow of the cyclone below being regulated so as to form a vortex (11) in the fluid flow in front of and above the cyclone intake opening (8, 24) stabilized at a predetermined level. 2. Apparat til udførelse af den i krav 1 angivne fremgangsmåde og udstyret med en lededlade (6), hvis frie endekant (7) er indrettet til at være beliggende nær ved, men et passende stykke under vandspejlet imellem to lodrette konvergerende vægge (1, 3), der 35 leder til en indtagsåbning (8) i en cyklon (4) og kan bevirke en strømmende væskeføring gennem denne, der 141535 fremkalder en hvirvelstrømning i cyklonen til separation ved centrifugering af vandet og forureningsprodukter, idet disse sidste koncentreres i en central aksial-zone og kan bortledes opad fra denne, medens det for for-5 ureningsprodukter befriede vand kan bortledes gennem et forneden værende udledningsorgan, kendetegnet ved pumper (16 og 9) til bortsugning af henholdsvis de udseparerede forureningsprodukter og af det rensede vand, hvorhos der findes midler til regulering 10 af indtagsåbningens kapacitet på en sådan måde, at den af den nævnte ledeflade fremkaldte vandrette hvirvel (11) foran og ved overkanten af indtagsåbningen (8) kan holdes beliggende i et bestemt ønsket niveau under vandfladen.Apparatus for carrying out the method according to claim 1 and equipped with a guide bar (6), the free end edge (7) of which is arranged to be located close to, but a suitable part under the water level between two vertical converging walls (1, 3) which leads to an inlet opening (8) in a cyclone (4) and can cause a flow of liquid through it which causes a vortex flow in the cyclone for separation by centrifugation of the water and contaminants, the latter being concentrated in a central axial zone and may be discharged upwardly therefrom, while the water liberated from contaminant products may be discharged through a downstream discharge means, characterized by pumps (16 and 9) for suction of the separated contaminants and of the purified water, respectively, means are provided for regulating the capacity of the intake port in such a way that the horizontal vortex (11) induced by said guide surface is advanced in front of and at the upper edge of the inlet the shaft opening (8) may be held at a desired level below the water surface. 3. Apparat ifølge krav 2 til udførelse af fremgangsmåden ifølge krav 1, kendetegnet ved, at ledefladen er udformet som en omkring cyklonen (4) løbende skålformet skillevæg (22), der sammen med lodrette, i forhold til cyklonsvøbet tangentiale ledevægge 20 (23) kan styre væsken mod cyklonens indtagsåbninger (24).Apparatus according to claim 2 for carrying out the method according to claim 1, characterized in that the guide surface is formed as a bowl-shaped partition (22) running around the cyclone (4) which, together with vertical, tangential guide walls 20 (23) relative to the cyclone. can guide the liquid towards the intake ports of the cyclone (24). 4. Apparat ifølge krav 2 eller 3, kendetegnet ved, at der oven over ledéfladen (6) findes en dækflade (21) til yderligere styring af vand- 25 strømningen.Apparatus according to claim 2 or 3, characterized in that a cover surface (21) is provided above the guide surface (6) for further control of the water flow. 5. Apparat ifølge krav 2 eller 3, kendetegnet ved, at de til regulering af cyklonindtagsåbningens kapacitet tjenende midler består af suppleringsvandindtag (12, 25) i en væg (4, 22) i appa- 30 ratet under vandspejlet.Apparatus according to claim 2 or 3, characterized in that the means used for regulating the capacity of the cyclone intake opening consist of supplementary water inlets (12, 25) in a wall (4, 22) in the apparatus below the water level. 6. Apparat ifølge krav 5, kendetegnet ved, at suppleringsvandindtagene består af tangentiale rør (12) på cyklonens (4) svøb.Apparatus according to claim 5, characterized in that the supplementary water inlets consist of tangential tubes (12) on the sleeve of the cyclone (4). 7. Apparat ifølge krav 5, kendeteg-35 net ved, at suppleringsvandindtagene består af åbninger (25) til indtagning af vand 1 den nedre del af den cyklonen omgivende skillevæg (22).Apparatus according to claim 5, characterized in that the supplementary water inlets consist of openings (25) for intake of water 1 in the lower part of the partition wall (22) surrounding the cyclone. 8. Apparat ifølge krav 2 eller 3, kende-Apparatus according to claim 2 or 3, characterized in that
DK642074AA 1973-12-11 1974-12-10 Method and apparatus for removing a water-floating layer of contaminants. DK141535B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7344189 1973-12-11
FR7344189A FR2253879B1 (en) 1973-12-11 1973-12-11

Publications (3)

Publication Number Publication Date
DK642074A DK642074A (en) 1975-08-18
DK141535B true DK141535B (en) 1980-04-14
DK141535C DK141535C (en) 1980-09-29

Family

ID=9129040

Family Applications (1)

Application Number Title Priority Date Filing Date
DK642074AA DK141535B (en) 1973-12-11 1974-12-10 Method and apparatus for removing a water-floating layer of contaminants.

Country Status (13)

Country Link
JP (1) JPS56106B2 (en)
AT (1) AT334835B (en)
BE (1) BE822629A (en)
CA (1) CA1054532A (en)
CH (1) CH589180A5 (en)
DE (1) DE2458147C3 (en)
DK (1) DK141535B (en)
ES (1) ES432800A1 (en)
FR (1) FR2253879B1 (en)
GB (1) GB1472663A (en)
IT (1) IT1030877B (en)
NL (1) NL7416149A (en)
YU (1) YU326074A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE416220B (en) * 1977-04-27 1980-12-08 Sten Gosta Walin oil recovery PUMP
FR2536672B1 (en) * 1982-11-26 1994-07-08 Chaudrofrance Sa CENTRIFUGAL LAMELLAR DECANTER
GB2354462A (en) * 1999-09-22 2001-03-28 Mantis Oil Separation Ltd Vortex device for separating oil or floating algae from water; combinations of separators
SE541135C2 (en) * 2016-07-06 2019-04-16 Surfcleaner Ab A skimming and separation device - peripheral vertical flow
JP6589162B1 (en) * 2019-07-08 2019-10-16 康司 大藪 A device that collects dust floating on the surface of liquid
CN114590890B (en) * 2020-12-04 2023-06-30 中国石油天然气集团有限公司 Coupled oxidation ditch denitrification process device
CN112854316B (en) * 2021-01-08 2022-02-22 广州市建筑科学研究院有限公司 First arrival wave sound time intelligent correction method and device based on sound wave transmission method
RU2766599C1 (en) * 2021-10-12 2022-03-15 Федеральное государственное бюджетное учреждение науки Институт проблем механики им. А.Ю. Ишлинского Российской академии наук (ИПМех РАН) Method of removing oil products from water surface

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3635342A (en) * 1969-12-22 1972-01-18 Bertin & Cie Method and apparatus for recovering a substance floating as a sheet on the surface of a liquid mass
GB1274387A (en) * 1970-04-02 1972-05-17 Michael Freegarde Separation of floatable media

Also Published As

Publication number Publication date
IT1030877B (en) 1979-04-10
DK141535C (en) 1980-09-29
DK642074A (en) 1975-08-18
AT334835B (en) 1976-02-10
YU326074A (en) 1982-02-28
JPS56106B2 (en) 1981-01-06
FR2253879A1 (en) 1975-07-04
JPS5091169A (en) 1975-07-21
DE2458147C3 (en) 1979-05-31
DE2458147B2 (en) 1978-10-05
ES432800A1 (en) 1976-11-01
NL7416149A (en) 1975-06-13
BE822629A (en) 1975-05-27
CA1054532A (en) 1979-05-15
CH589180A5 (en) 1977-06-30
ATA963874A (en) 1976-05-15
FR2253879B1 (en) 1975-11-21
DE2458147A1 (en) 1975-06-12
GB1472663A (en) 1977-05-04

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