WO2008083640A1 - Verfahren und vorrichtung zum aussondern von materialien schwerer als kunststoff, insbesondere metallen, durch flotation in einem wasserbad, bei der trennung von kunstostoffen unterschiedlicher dichte - Google Patents
Verfahren und vorrichtung zum aussondern von materialien schwerer als kunststoff, insbesondere metallen, durch flotation in einem wasserbad, bei der trennung von kunstostoffen unterschiedlicher dichte Download PDFInfo
- Publication number
- WO2008083640A1 WO2008083640A1 PCT/DE2007/000734 DE2007000734W WO2008083640A1 WO 2008083640 A1 WO2008083640 A1 WO 2008083640A1 DE 2007000734 W DE2007000734 W DE 2007000734W WO 2008083640 A1 WO2008083640 A1 WO 2008083640A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plastics
- gap
- materials
- flotation
- sieve
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
- B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
- B03B5/36—Devices therefor, other than using centrifugal force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
- B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
- B03B5/36—Devices therefor, other than using centrifugal force
- B03B5/40—Devices therefor, other than using centrifugal force of trough type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
- B29B2017/0213—Specific separating techniques
- B29B2017/0217—Mechanical separating techniques; devices therefor
- B29B2017/0237—Mechanical separating techniques; devices therefor using density difference
- B29B2017/0244—Mechanical separating techniques; devices therefor using density difference in liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
- B29B2017/0213—Specific separating techniques
- B29B2017/0268—Separation of metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Definitions
- Ferromagnetic and non-magnetic metal parts or other materials that are heavier than plastics also enter the flotation basin and are deposited on a sieve bottom, usually in the form of small piles, using the plastic cores processed in a shredder.
- the lighter plastic content in such a batch requires more time for the settling process than the heavier materials and can therefore be withdrawn with flotation liquid in the upper part of a flotation tank together with flotation liquid.
- a separation of plastics of different density has not usually occurred in this first stage.
- downstream 2nd stage the separation of plastics, according to their density differences in a known manner.
- the materials, heavier than plastic, that settle on the first stage sieve tray cause the problem of clogging the flotation fluid passage openings in the sieve tray.
- the efficiency in the separation of the different materials of the composition in the first stage is not negligibly adversely affected.
- the problem is solved in that the sieve tray of the first stage, which is the rejection of substances heavier than plastic, is mounted horizontally displaceable horizontally in the flotation basin and the Absetzbeckenwandung out on one side leaves a gap, so that between Sieêtbegrenzung and pool wall a gap is formed describing the margin around which the horizontal movement of the sieve tray can be performed.
- the sieve bottom is equipped with a drive, the z. B. hydraulic, magnetic, mechanical or electrical type, by means of which the horizontal movement of the sieve plate is performed.
- At least one guide rail are provided, slide on the rollers with which the sieve plate is connected directly or via support arms.
- the support arms can have a vortex-avoiding flow profile.
- a control unit cooperates with the drive in such a way that the sieve bottom is slow in the direction of a reduction of the gap and accelerates abruptly in the other direction after reaching the end position in this direction and abruptly stopped when reaching the other end position.
- This movement process is repeated at intervals and causes, in that again and again a rapid, sudden acceleration, an abrupt delay, until the screen bottom stops, that the metal heaps move on the sieve bottom in the direction of the gap as a result of the introduced kinetic energy and to the gap slides until they finally fall through the gap in a catch basin, from which they can be removed via a lock.
- This process is similar to a process in which the sieve tray would suddenly be pulled away under the metal heap.
- the mass inertia of the metal heaps is used to move them on the sieve bottom in the direction of the gap and catch basin.
- This process is repeated at intervals, so that finally, all forming metal heaps fall through the gap between a boundary of the sieve and the associated pool wall in the catch basin. From this catch basin, the metal is removed from the sieve plate and can be removed for further use.
- the invention relates to a method and apparatus for removing metal deposits on a sieve tray (1) in a flotation apparatus for separating plastics of different densities from materials which are heavier than plastic. Specifically with the maintenance of the functionality of the sieve tray (1) in a settling tank (27) for the separation of plastics of different chemical composition by means of a flotation and their separation of materials heavier than plastics.
- a flotation method is used, which in works several stages.
- the heavy metal components carried along in the material mixture are deposited in the form of piles (8) on the sieve bottom (1) and the lighter plastic components remain suspended in the first flotation tank and can thus easily be transferred to a second stage in another Flotation tank for the separation of plastics of different density, to be transferred.
- the on the sieve plate (1) of the first stage settling metal heaps (8) are difficult to remove from there.
- the invention leaves a gap "S" (7) between a rear wall (26) of the settling tank (27) and a rear broad side (25) of the sieve tray (1) when the sieve tray (1) is in one end position and on the front wall (28) of the settling tank (27) with its boundary (29) .
- the sieve bottom (1) is displaceably mounted in the longitudinal direction (arrow direction) on roller or sliding bearings (2) in a guide rail (3) , eg hydraulic motor (6), engages on the sieve bottom (1) via a linkage, which cooperates with the sieve bottom (1) and is formed by a lever (4) and a piston rod (5), guided by a control device
- the hydraulic motor (6) (actuator) is connected via a high-pressure line (19) to a tank (17) which contains hydraulic fluid (1
- the pressure chambers (23 and 24) are formed in a cylinder (30) by a freely movable piston (22) which is fixedly connected to the piston rod (5).
- the pressure chamber (A) separated from the high-pressure line (19) is connected to the tank (17) via the return line (20) so that hydraulic fluid flows out of the pressure chamber (A) not connected to the high-pressure line (19) can.
- the hydraulic fluid acts in the pressure chamber (B) due to the opened control valve (13).
- the two pressure chambers (A and B) are separated by a piston K (22), which is mounted in a liquid-tight manner in a cylinder (30).
- the piston K (22) interacts with the linkage (4 +5) with positive or non-positive engagement and moves the sieve bottom (1).
- the control device (14) influences the hydraulic motor in such a way that initially a slow movement of the sieve bottom (1) in the direction of a reduction of the gap (7) takes place and then, with great acceleration, the sieve bottom (1) is catapulted in the opposite direction so that the previously closed gap (7) opens again.
- the sieve bottom (1) is abruptly braked to zero and the sieve bottom (1) stopped.
- the kinetic energy introduced by the rapid movement in the metal heaps (8) will continue to abruptly stop this movement, and the metal heaps (8) will slide over the sieve tray (1) due to the stored kinetic energy until that energy is consumed or until the metal heaps (8) over the broad side (25) in the gap S (7) and from there into a catch basin (31) fall. This process is repeated continuously at intervals.
- the metal parts are removed for further utilization via a lock (12).
- the sieve bottom (T) in the second stage and the suspension (guide rail 3 ') connected thereto can be pivotally mounted about a horizontal axis of a pivot (9) to thereby, by tilting the sieve bottom (1'), the thickness "D "the sediment layer of the depositing plastic particles (10) in addition to the adjustable Flaps (32) influence.
- the thickness of the sediment layer should be approximately equal over the entire screen surface.
- Measuring sensors (11) 5 distributed over the entire sieve bottom surface (1 ') give control commands to an associated, the slope of the sieve tray (1') influencing control device.
- FIG. 2 shows, for example, a hydraulic motor (6) which is formed by a piston (22) which slides in a cylinder (30) and separates two pressure chambers (23 and 24) in the cylinder (30) High pressure line (19) via control valves (13) are alternately connectable.
- the piston (22) is fixedly connected to at least one piston rod (5), which cooperates with a lever (4) which engages the sieve bottom (1) and moves it in the desired manner described above.
- One of the two pressure chambers (23 and 24) is in each case connected to the high-pressure line (19) when the other via the control valve (13) is connected to a return line (20) and switched to discharge.
- FIG. 3 shows a possible suspension and mounting of the displaceable sieve bottom (1).
- the sieve bottom (1) hangs on a running rail (3) via rollers (2), which in turn interact via support arms (33) with the sieve bottom (1).
- the adjustable flaps (32) can be seen on the underside of the sieve tray (1).
- FIG. 4 shows a suspension of the sieve bottom (1), in which the rollers (2) run on a guide rail (3), which is arranged centrally above the flotation basin and is supported by supports (34) on the wall of the flotation basin.
- the support arms (33) for the movable sieve bottom (1) have a corresponding constructive shape.
- the rollers (2) running on the guide rail (3) have a crowned flank (35) on the side directed towards the guide rail (3) in order to reduce friction losses on the guide rail (3) during movement of the sieve bottom (1) minimize. designations
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL07722292T PL2109503T3 (pl) | 2007-01-12 | 2007-04-25 | Sposób i urządzenie do oddzielania materiałów cięższych od tworzyw sztucznych, zwłaszcza metali, poprzez flotację w kąpieli wodnej, przy rozdzielaniu tworzyw sztucznych o różnych gęstościach |
ES07722292T ES2772899T3 (es) | 2007-01-12 | 2007-04-25 | Procedimiento y dispositivo para la separación de materiales más pesados que el plástico, en particular metales, por flotación en un baño de agua, en la separación de plásticos de diferentes densidades |
CA 2672306 CA2672306C (en) | 2007-01-12 | 2007-04-25 | Method of and apparatus for separating out materials heavier than plastic, in particular metals, by flotation in a water bath, in a separation of plastics of different densities |
EP07722292.5A EP2109503B1 (de) | 2007-01-12 | 2007-04-25 | Verfahren und vorrichtung zum aussondern von materialien schwerer als kunststoff, insbesondere metallen, durch flotation in einem wasserbad, bei der trennung von kunstostoffen unterschiedlicher dichte |
DE200711003396 DE112007003396A5 (de) | 2007-01-12 | 2007-04-25 | Verfahren und Vorrichtung zum Aussondern von Materialien schwerer als Kunststoff, insbesondere Metallen, durch Flotation in einem Wasserbad, bei der Trennung von Kunststoffen unterschiedlicher Dichte |
JP2009529509A JP2010504208A (ja) | 2007-01-12 | 2007-04-25 | プラスチック材料を比重に基づき分ける際に、水浴における浮遊によりプラスチックより重い材料を、好適には金属を分離するためのプロセスおよび装置 |
US12/497,329 US9375724B2 (en) | 2007-01-12 | 2009-07-02 | Method of and apparatus for separating out materials heavier than plastic, in particular metals, by flotation in a water bath, in a separation of plastics of different densities |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710001809 DE102007001809A1 (de) | 2007-01-12 | 2007-01-12 | Verfahren und Vorrichtung zum Aussondern von Materialien schwerer als Kunststoff, insbesondere Metallen, durch Flotation in einem reinen Wasserbad, bei der Trennung von Kunststoffen unterschiedlicher Dichte |
DE102007001809.8 | 2007-01-12 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/497,329 Continuation US9375724B2 (en) | 2007-01-12 | 2009-07-02 | Method of and apparatus for separating out materials heavier than plastic, in particular metals, by flotation in a water bath, in a separation of plastics of different densities |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008083640A1 true WO2008083640A1 (de) | 2008-07-17 |
Family
ID=38462043
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2007/000734 WO2008083640A1 (de) | 2007-01-12 | 2007-04-25 | Verfahren und vorrichtung zum aussondern von materialien schwerer als kunststoff, insbesondere metallen, durch flotation in einem wasserbad, bei der trennung von kunstostoffen unterschiedlicher dichte |
Country Status (8)
Country | Link |
---|---|
US (1) | US9375724B2 (de) |
EP (1) | EP2109503B1 (de) |
JP (1) | JP2010504208A (de) |
CA (1) | CA2672306C (de) |
DE (2) | DE102007001809A1 (de) |
ES (1) | ES2772899T3 (de) |
PL (1) | PL2109503T3 (de) |
WO (1) | WO2008083640A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007024048B4 (de) * | 2007-05-23 | 2011-08-25 | Koslow, Alexander, 84036 | Verfahren zum Trennen eines Abfallgemenges von Gummi und Holz |
DE102013105177A1 (de) | 2013-05-21 | 2014-11-27 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zur Gewinnung metallischer Anteile sowie von metallabgereichertem Material aus metallhaltigen Materialien |
WO2019159139A1 (en) * | 2018-02-19 | 2019-08-22 | 3M Innovative Properties Company | Optical film device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE939561C (de) * | 1954-05-25 | 1956-03-01 | Sachtleben Ag | Verfahren und Vorrichtung zur Aufbereitung von Erzen, Kohle und aehnlichem Gut nach dem Schwimm- und Sinkverfahren |
DE1102661B (de) * | 1953-08-13 | 1961-03-23 | Dorr Oliver Inc | Nassklassierer |
GB1562266A (en) * | 1977-11-14 | 1980-03-12 | Hampshire Watercress Ltd | Apparatus for washing buoyant material |
DE4217464A1 (de) * | 1992-05-27 | 1993-12-02 | Wilhelm Haeberle | Trenneinrichtung |
DE102005021091A1 (de) * | 2005-05-06 | 2006-11-09 | Alexander Koslow | Verfahren und Vorrichtung zum Trennen von Kunststoffen unterschiedlicher chemischer Zusammensetzung |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3616946A1 (de) * | 1986-05-20 | 1987-11-26 | Organ Faser Technology Co | Verfahren zum trennen einer heterogenen menge aus festem material in fraktionen und vorrichtung zur durchfuehrung des verfahrens |
JPH0480903A (ja) * | 1990-07-24 | 1992-03-13 | Kawasaki Steel Corp | ボンド磁石用成形素材の製造方法 |
JP4371439B2 (ja) * | 1996-09-13 | 2009-11-25 | シナネン株式会社 | 廃プラスチックの比重分離装置 |
DE19643603A1 (de) * | 1996-10-22 | 1998-04-23 | Kuno Kunststofftechnik Nord Gm | Verfahren zur Herstellung gereinigter Kunststoffteilchen aus Kunststoffabfällen sowie deren Verwendung in einer Mischung für die Herstellung von Formteilen, insbesondere von Paletten sowie Vorrichtung zur Durchführung des Verfahrens |
JPH10235644A (ja) * | 1997-02-21 | 1998-09-08 | Nkk Corp | プラスチックごみの縦型湿式比重分離方法 |
JP2000167699A (ja) * | 1998-12-02 | 2000-06-20 | Amada Co Ltd | 油圧式ラム昇降システム |
US7255233B2 (en) * | 2004-06-14 | 2007-08-14 | Uchicago Argonne Llc | Method and apparatus for separating mixed plastics using flotation techniques |
-
2007
- 2007-01-12 DE DE200710001809 patent/DE102007001809A1/de not_active Withdrawn
- 2007-04-25 ES ES07722292T patent/ES2772899T3/es active Active
- 2007-04-25 CA CA 2672306 patent/CA2672306C/en active Active
- 2007-04-25 PL PL07722292T patent/PL2109503T3/pl unknown
- 2007-04-25 JP JP2009529509A patent/JP2010504208A/ja active Pending
- 2007-04-25 WO PCT/DE2007/000734 patent/WO2008083640A1/de active Application Filing
- 2007-04-25 EP EP07722292.5A patent/EP2109503B1/de active Active
- 2007-04-25 DE DE200711003396 patent/DE112007003396A5/de not_active Withdrawn
-
2009
- 2009-07-02 US US12/497,329 patent/US9375724B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1102661B (de) * | 1953-08-13 | 1961-03-23 | Dorr Oliver Inc | Nassklassierer |
DE939561C (de) * | 1954-05-25 | 1956-03-01 | Sachtleben Ag | Verfahren und Vorrichtung zur Aufbereitung von Erzen, Kohle und aehnlichem Gut nach dem Schwimm- und Sinkverfahren |
GB1562266A (en) * | 1977-11-14 | 1980-03-12 | Hampshire Watercress Ltd | Apparatus for washing buoyant material |
DE4217464A1 (de) * | 1992-05-27 | 1993-12-02 | Wilhelm Haeberle | Trenneinrichtung |
DE102005021091A1 (de) * | 2005-05-06 | 2006-11-09 | Alexander Koslow | Verfahren und Vorrichtung zum Trennen von Kunststoffen unterschiedlicher chemischer Zusammensetzung |
Also Published As
Publication number | Publication date |
---|---|
JP2010504208A (ja) | 2010-02-12 |
DE102007001809A1 (de) | 2008-07-17 |
CA2672306A1 (en) | 2008-07-17 |
EP2109503A1 (de) | 2009-10-21 |
US9375724B2 (en) | 2016-06-28 |
PL2109503T3 (pl) | 2020-06-01 |
ES2772899T3 (es) | 2020-07-08 |
US20100000912A1 (en) | 2010-01-07 |
EP2109503B1 (de) | 2019-11-13 |
DE112007003396A5 (de) | 2009-12-17 |
CA2672306C (en) | 2015-02-03 |
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