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WO1994010026A1 - Appareil de recuperation d'un produit flottant a la surface d'un liquide - Google Patents

Appareil de recuperation d'un produit flottant a la surface d'un liquide Download PDF

Info

Publication number
WO1994010026A1
WO1994010026A1 PCT/SE1992/000743 SE9200743W WO9410026A1 WO 1994010026 A1 WO1994010026 A1 WO 1994010026A1 SE 9200743 W SE9200743 W SE 9200743W WO 9410026 A1 WO9410026 A1 WO 9410026A1
Authority
WO
WIPO (PCT)
Prior art keywords
drum
curved surface
liquid
baffle
rotational direction
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.)
Ceased
Application number
PCT/SE1992/000743
Other languages
English (en)
Inventor
Ulf Hammarstedt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kl Konstruktion AB
Original Assignee
Kl Konstruktion AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to SE9101298A priority Critical patent/SE468349B/sv
Application filed by Kl Konstruktion AB filed Critical Kl Konstruktion AB
Priority to DE69219793T priority patent/DE69219793D1/de
Priority to AU29588/92A priority patent/AU2958892A/en
Priority to EP92924066A priority patent/EP0665794B1/fr
Publication of WO1994010026A1 publication Critical patent/WO1994010026A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • E02B15/103—Rotary drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/32—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for for collecting pollution from open water

Definitions

  • the invention relates to a device for recovering floating material from a liquid surface, particularly for recovering oil from a water surface, including at least one drum to be rotated, partly immersed in the liquid, about a substantially horizontal axis, the curved surface of said drum being constructed for raising said material from the liquid surface, and means for receiving raised material.
  • Devices of this type are described in SE-B-394 204 and GB-A-2 007 516 the material being raised by means of vanes or buckets on a drum or a wheel, and also in DK-B- 155 615 according to which the material is raised by means of a drum the curved surface of which consists of a helical barrel of net material.
  • the purpose of the invention is to provide a device of the kind referred to which has a considerably larger receiving capacity than the prior art devices mentioned above, particularly with regard to the recovery of oil from a water surface.
  • the device according to the invention has obtained the characterizing features of claim 1.
  • FIG. 1 is a vertical cross sectional view of the device
  • FIG. 2 is a side view of one of the raising drums forming part of the device.
  • the illustrated device comprises a frame 10 shown partly only, which can form part of or is mounted on a vessel or also can be made stationary, e.g. in a cleaning plant for sewage or waste water.
  • Two drums 11A and 11B rotatable in opposite directions each about a horizontal axis 12, are mounted in the frame. The rotational directions are indicated by an arrow 13 in FIG. 1, and it will be seen that the drums have the ascending sections of the rotational movement located adjacent each other.
  • Each drum has two circular end walls 14, and a barrel 15 is provided therebetween said barrel consisting of an unperforated but preferably embossed metal sheet.
  • the embodiment may be of the type appearing on floor plates and comprising raised and/or depressed portions (grooves) in a certain pattern.
  • the barrel is shaped to form two depressions 16A and 16B each of which extends axially over the total length of the drum and peripherally over half the circumference of the drum.
  • Each depression has an end wall 17 which is inclined in the range from 30 to 40° to the radial direction of the drum and slopes towards the bottom of the depression in the intended rotational direction of the drum. Adjacent the end wall 17 the depression has a maximum depth and then will be gradually shallower in the rotational direction of the drum up to the end wall 17 of the other depression by the radius increasing from a minimum value to a maximum value.
  • a screw conveyor having a screw 18 in a trough 19 is provided on the frame and extends in parallel with the axes 12 of the drums.
  • the conveyor connects with other conveying means, not shown herein, which in turn connect with a collecting container, but the conveyor can of course also connect directly with such a collection container.
  • a baffle 20 connects with the trough, said baffle defining a conveying channel with the adjacent drum 11A and 11B, respectively.
  • the baffle has an outlet portion connecting with the trough 19 and extending substantially circularly along the curved surface of the drum spaced radially from the axis thereof, the spacing corresponding substantially to the maximum radius of the drum at the outer edge of the end wall 17 or is slightly larger than said radius.
  • the baffle has also a straight portion which forms an inlet portion of the conveying channel, wherein the radial distance of the baffle to the axis of the drum decreases in the intended rotational direction of the drum from a maximum value to said radial spacing in the outlet portion of the conveying channel.
  • a flexible stripper plate 21 engaging the curved surface of the associated drum over the total axial length thereof between the two end walls 14.
  • the depressions 16A and 16B operate as scoops or buckets which in the descending section of the path of rotation of the drum carry material floating on the liquid, down under the drum and convey such material into the conveying channel defined by the baffle 20, wherein the material will be raised upwards partly under influence of the inherent floating buoyancy thereof, in order to pour down into the trough 19 where the material will be taken over by the screw 18 for transmittal to the collecting container.
  • the path of the material during the recovery is indicated by heavy arrows in FIG. 1.
  • the conveyance of the material in the rotational movement of the drum will be amplified by the curved metal sheet of the drum is patterned in the manner described.
  • the described embodiment of the invention can be modified in different manners and thus it is possible to arrange a single depression or bucket on each drum or to arrange more than two depressions or buckets, and it is also conceivable to arrange two or several series of buckets axially side by side on the drum, the buckets of each series being displaced peripherally in relation to the buckets in the other series. It is not necessary that the drums are cylindrical; they can also be conical with the small end pointing e.g. forward in the stem of a vessel on which the device is mounted.
  • the screw conveyor 18, 19 can be replaced by a conveyor of another type, e.g. a belt conveyor or scraper conveyor.
  • the drums conveying the material directly to the collection container for this material when such container is provided close to the drums.
  • the conveying channel defined by the baffle can extend over a larger or smaller portion of the circumference of the drum than has been shown herein.
  • the end wall 17 preferably is inclined in the manner shown in order to facilitate transfer of the raised material to the conveyor 18, 19, but it is within the scope of the invention to arrange this end wall radially.
  • Another type of stripper 21 than that shown herein can be provided depending on the material to be recovered and the character of the curved surface of the drum.
  • the curved surface preferably is patterned but it is not excluded to make the curved surface smooth, and in an embodiment which is intended particularly for recovery of very thick oil from water a smooth or patterned curved surface is provided with a net or a perforated or expanded metal sheet which follows the contour of the curved surface and is spaced from said surface a distance of the order of 1 to 5 cm.
  • a smooth or patterned curved surface is provided with a net or a perforated or expanded metal sheet which follows the contour of the curved surface and is spaced from said surface a distance of the order of 1 to 5 cm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Ocean & Marine Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Removal Of Floating Material (AREA)
  • Cleaning Or Clearing Of The Surface Of Open Water (AREA)

Abstract

Dispositif de récupération d'un produit flottant à la surface d'un liquide. Il comporte au moins un tambour (11A, 11B) en partie immergé et monté rotatif autour d'un axe sensiblement horizontal (12). La surface courbée (15) du tambour présente au moins un creux (16A, 16B) dont la profondeur diminue progressivement dans le sens de rotation du tambour, à mesure que le rayon de la surface courbée augmente depuis une valeur minimale jusqu'à une valeur maximale. Un passage destiné à recevoir le produit capté sous le tambour par les creux est délimité le long de la surface courbée du tambour dans la partie ascendante de celle-ci, par un déflecteur immobile (20). Ce déflecteur possède une voie de sortie débouchant dans un dispositif adjacent (18, 19) destiné à évacuer le produit récupéré, et s'étend sensiblement dans le sens circonférentiel de la surface courbée du tambour tout en étant séparé de son axe, dans le sens radial, par une distance correspondant sensiblement audit rayon maximal de ladite surface.
PCT/SE1992/000743 1991-04-30 1992-10-29 Appareil de recuperation d'un produit flottant a la surface d'un liquide Ceased WO1994010026A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE9101298A SE468349B (sv) 1991-04-30 1991-04-30 Apparat foer uppsamling av flytande material fraan en vaetskeyta
DE69219793T DE69219793D1 (de) 1991-04-30 1992-10-29 Vorrichtung zum sammeln von auf einer flüssigkeitsoberfläche schwimmenden gegenständen
AU29588/92A AU2958892A (en) 1991-04-30 1992-10-29 Apparatus for collecting floating material from the surface of a liquid
EP92924066A EP0665794B1 (fr) 1991-04-30 1992-10-29 Appareil de recuperation d'un produit flottant a la surface d'un liquide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9101298A SE468349B (sv) 1991-04-30 1991-04-30 Apparat foer uppsamling av flytande material fraan en vaetskeyta

Publications (1)

Publication Number Publication Date
WO1994010026A1 true WO1994010026A1 (fr) 1994-05-11

Family

ID=20382598

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1992/000743 Ceased WO1994010026A1 (fr) 1991-04-30 1992-10-29 Appareil de recuperation d'un produit flottant a la surface d'un liquide

Country Status (5)

Country Link
EP (1) EP0665794B1 (fr)
AU (1) AU2958892A (fr)
DE (1) DE69219793D1 (fr)
SE (1) SE468349B (fr)
WO (1) WO1994010026A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998039519A1 (fr) * 1997-03-03 1998-09-11 Aron S.R.L. Materiel de flottement pour recuperer les produits huileux
WO1999053146A1 (fr) * 1998-04-14 1999-10-21 Frank Mohn Flatøy As Appareil
EP1123863A1 (fr) * 2000-02-11 2001-08-16 Technip France Navire de récupération de produits pétroliers flottants et installation mobile utilisant de tels navires de récupération
WO2003106255A1 (fr) * 2002-06-15 2003-12-24 Sun Soon Park Appareil d'evacuation de matieres flottantes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE468349B (sv) * 1991-04-30 1992-12-21 Hammarstedt Konsult Ab U Apparat foer uppsamling av flytande material fraan en vaetskeyta

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1962614A1 (de) * 1969-12-13 1971-07-22 Jaeger Geb Steinfartz Verfahren und Vorrichtung zum Entfernen von Schmutz- und OElfilmen von Wasseroberflaechen
SE394204B (sv) * 1970-12-23 1977-06-13 Akers Mek Verksted As Anordning for uppsamling av olja och annat flytande avfall fran en vattenyta
WO1980000161A1 (fr) * 1978-07-05 1980-02-07 E Byers Navire pour enlever le petrole
GB2233573A (en) * 1989-07-11 1991-01-16 Rajat Nath Oil recovery
DE4109577A1 (de) * 1991-03-20 1992-09-24 Gutec Umweltschutz Vorrichtung zur beseitigung von oel
SE468349B (sv) * 1991-04-30 1992-12-21 Hammarstedt Konsult Ab U Apparat foer uppsamling av flytande material fraan en vaetskeyta

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1962614A1 (de) * 1969-12-13 1971-07-22 Jaeger Geb Steinfartz Verfahren und Vorrichtung zum Entfernen von Schmutz- und OElfilmen von Wasseroberflaechen
SE394204B (sv) * 1970-12-23 1977-06-13 Akers Mek Verksted As Anordning for uppsamling av olja och annat flytande avfall fran en vattenyta
WO1980000161A1 (fr) * 1978-07-05 1980-02-07 E Byers Navire pour enlever le petrole
GB2233573A (en) * 1989-07-11 1991-01-16 Rajat Nath Oil recovery
DE4109577A1 (de) * 1991-03-20 1992-09-24 Gutec Umweltschutz Vorrichtung zur beseitigung von oel
SE468349B (sv) * 1991-04-30 1992-12-21 Hammarstedt Konsult Ab U Apparat foer uppsamling av flytande material fraan en vaetskeyta

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998039519A1 (fr) * 1997-03-03 1998-09-11 Aron S.R.L. Materiel de flottement pour recuperer les produits huileux
WO1999053146A1 (fr) * 1998-04-14 1999-10-21 Frank Mohn Flatøy As Appareil
EP1123863A1 (fr) * 2000-02-11 2001-08-16 Technip France Navire de récupération de produits pétroliers flottants et installation mobile utilisant de tels navires de récupération
FR2804932A1 (fr) * 2000-02-11 2001-08-17 Technip France Navire de recuperation de produits petroliers flottants et installation mobile utilisant de tels navires de recuperation
US6363873B2 (en) 2000-02-11 2002-04-02 Technip France Ship for recovering floating petroleum products and mobile installation using such recovery ships
WO2003106255A1 (fr) * 2002-06-15 2003-12-24 Sun Soon Park Appareil d'evacuation de matieres flottantes

Also Published As

Publication number Publication date
AU2958892A (en) 1994-05-24
SE9101298D0 (sv) 1991-04-30
SE9101298L (sv) 1992-10-31
EP0665794A1 (fr) 1995-08-09
EP0665794B1 (fr) 1997-05-14
SE468349B (sv) 1992-12-21
DE69219793D1 (de) 1997-06-19

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