EP1985379A1 - Dispositif de nettoyage mécanique de déchets plastiques - Google Patents

Dispositif de nettoyage mécanique de déchets plastiques Download PDF

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Publication number
EP1985379A1
EP1985379A1 EP08007301A EP08007301A EP1985379A1 EP 1985379 A1 EP1985379 A1 EP 1985379A1 EP 08007301 A EP08007301 A EP 08007301A EP 08007301 A EP08007301 A EP 08007301A EP 1985379 A1 EP1985379 A1 EP 1985379A1
Authority
EP
European Patent Office
Prior art keywords
container
screen tube
tube
plastic waste
wall
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.)
Withdrawn
Application number
EP08007301A
Other languages
German (de)
English (en)
Inventor
Josef Kötting
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.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Publication of EP1985379A1 publication Critical patent/EP1985379A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/18—Drum screens
    • B07B1/20—Stationary drums with moving interior agitators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/50—Cleaning
    • B07B1/52—Cleaning with brushes or scrapers
    • B07B1/526—Cleaning with brushes or scrapers with scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/02—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by distortion, beating, or vibration of the surface to be cleaned

Definitions

  • the present invention relates to a device for the mechanical cleaning of plastic waste, in particular pourable plastic waste tough-elastic plastics.
  • drum sieves or so-called vibrating tables (vibrotis) are usually used.
  • vibrating tables vibrotis
  • These are screening machines in which the screen surface is moved as a whole.
  • Corresponding drum screens are usually made of a cylindrical or conical drum whose coat is covered with mesh or perforated plates. A screening is done by rotation of the drum. By rotation of the drum screen dirt and / or impurities are released from the material to be cleaned and discharged through the sieve plate of the drum screen as a sieve passage.
  • Plastic waste according to raw material separated waste in particular pourable plastic waste tough-elastic plastics, as incurred in connection with a recycling (recycling) of plastic packaging and / or plastic beverage bottles, usually also have a corresponding treatment with previously known screening and / or washing devices Pollution, in particular in the form of paper, sand and / or similar adhesions.
  • Pollution in particular in the form of paper, sand and / or similar adhesions.
  • the degree of contamination of plastic waste is important, especially against the background of technical-economic and / or ecological considerations and / or assessments.
  • plastic waste tough-elastic plastics as incurred for example in connection with thermoplastics as well as so-called PET bottles (PET: polyethylene terephalate), sorted and / or type-pure plastic waste are required in particular for a material recycling.
  • PET polyethylene terephalate
  • the invention is in the light of this prior art, the object of a device for the mechanical cleaning of Plastic waste, especially pourable plastic waste tough-elastic plastics to provide, which allows a simple and inexpensive way to clean plastic waste.
  • an apparatus for the mechanical cleaning of plastic waste in particular pourable plastic waste tough-elastic plastics, with an opening for introducing to be cleaned plastic waste and an opening for discharging cleaned waste plastic container having a in the container itself sieve tube subsequently arranged at the openings of the container, at least one rotatably arranged in the sieve tube, in the rotating state the cross-sectional area of the sieve tube substantially covering traction means and arranged in a space between the walls of the container and the sieve tube, at least along the wall of the sieve tube movable Scraper.
  • the invention is based on the finding that by the rotating in the screen tube traction means, preferably a chain, a wire rope or the like impact elements exhibiting traction device, the device according to the invention introduced into the screen tube waste plastic particularly simple and thorough of contamination, especially paper, sand and / or the like attachments can be freed.
  • the waste is advantageously further crushed by the rotating traction means, preferably a chain, in terms of their grain size.
  • the openings of the container are arranged on opposite sides of the screen tube.
  • the container is arranged vertically to the ground, so that the opening for introducing to be cleaned plastic waste in the region of a container lid and the opening for discharging cleaned plastic waste in the container bottom is made possible.
  • the container is arranged on a support frame arranged on the ground, so that a discharge of cleaned plastic waste through the opening in the container bottom is made possible under the container.
  • a further embodiment of the invention provides that the screen tube is arranged coaxially in the container.
  • the container and / or the screen tube are / is substantially cylindrical and / or conical, preferably with a circular cross-section. Due to the coaxial arrangement of the screen tube construction and manufacture of the device according to the invention are further simplified.
  • one end of the chain is attached to a coaxially arranged in the screen tube, driven by a drive unit to a rotational movement shaft or axis.
  • a particularly preferred embodiment of the invention provides that the shaft protrudes from one side of the container, preferably from the side of the container having the opening for introduction to the plastic waste to be cleaned, into the sieve tube and thus into the container.
  • the shaft or a bearing of the shaft does not disturb the traction means and / or the region of the opening for dispensing cleaned plastic waste of the container.
  • so below the container sufficient space for the removal of deployed cleaned or cleaned waste.
  • a further embodiment of the invention provides that the scraper can be moved around the cross section of the sieve tube along the wall of the sieve tube.
  • the screen tube is thus cleaned over its entire longitudinal extension direction of the scraper, which ablated dirt, which can adhere to the openings of the wall of the screen tube, are removed. Corresponding cleaned contaminants are then in the space between the walls of the container and the screen tube.
  • the scraper is movable by means of a drive unit along the wall of the screen tube.
  • a particularly preferred embodiment of the invention provides that the scraper along the wall of the screen tube and preferably simultaneously along the wall of the container is movable. In this way, advantageously also on the wall of the container adhering cleaned contaminants can be removed from the wall of the container.
  • a further advantageous embodiment of the invention is characterized by at least two mutually in the longitudinal direction of the container or the screen tube spaced traction means, preferably different lengths.
  • the traction means with respect to its arrangement position in the screen tube, its distance from the wall of the screen tube, its length and / or its size, in a chain, preferably in terms of chain link size, changeable.
  • a further preferred embodiment of the invention provides that the traction means is made of a soft, so in particular low-carbon steel. It was found that with a chain as a traction device from a suitably soft steel both better cleaning effects can be achieved and the wear of the chain is significantly reduced.
  • the container and / or the screen basket are / is made of metal, preferably steel.
  • a further advantageous embodiment of the invention provides that the container in the region of the space between the walls of the container and the screen tube has an opening for discharging contaminants cleaned from the plastic waste.
  • the provision of a corresponding opening for discharging contaminants cleaned off from the plastic waste advantageously enables simple and clean disposal thereof.
  • Fig. 1 shows a cleaning device 1 according to the invention for the mechanical cleaning of pourable plastic waste tough-elastic plastics.
  • the cleaning device 1 consists in the present case of a cylindrical container 2 with a circular cross-section in which a coaxially cylindrical screen tube 6 of circular cross-section is arranged coaxially.
  • the screen tube 6 is arranged in such a way in the container 2, that between the wall 5 of the container 2 and formed as a sieve wall 7 of the sieve tube 6, a free space 10 remains.
  • the screen tube 6 is at least partially exchangeable, for example in the event of wear.
  • the sieve surface of the sieve tube 6 can be variably configured with regard to the degree of sieving.
  • a scraper 9 is arranged, which along the wall 7 of the screen tube 6 and / or along the wall 5 of the container 2 is movable. For moving the scraper 9, it is arranged on a turntable driven by a drive unit 13.
  • the strainer 6 coaxial with a shaft 11 is arranged, which is driven by a drive unit 12 to a rotary motion.
  • a drive unit 12 to a rotary motion.
  • the shaft 11 On the shaft 11 four spaced chains 8 are attached in the present case.
  • the length of the chains 8 is dimensioned such that they cover or sweep the cross-sectional area of the screen tube 6 upon rotation of the shaft 11, ie in the rotating state.
  • the chains 8 are fastened to the shaft 11 in different positions with respect to the direction of longitudinal extent of the screen tube 6 or of the container 2, two chains 8 each being present on radially opposite sides of the shaft 11 in the present case.
  • this has an opening 3 for introducing plastic waste to be cleaned.
  • the opening 3 is advantageously arranged such that plastic waste to be cleaned can be introduced through the opening 3 into the volume space of the container 2 bounded by the sieve tube 6.
  • this has an opening 4 for discharging cleaned plastic waste to the volume space of the container 2 delimited by the sieve tube 6.
  • the discharge opening 4 can in the present case be closed or opened by a slide.
  • the slide of the opening 4 is operated in the present case by means of a pneumatic cylinder.
  • the container 2 is on one Carrier arranged so that below the bottom of the container 2 is given a free space.
  • the container 2 in the bottom has an opening 14 adjacent to the space 10 between the wall 5 of the container 2 and the wall 7 of the sieve tube 6 for discharging debris soiled, in particular comprising paper, sand, glass and / or similar adhesions in the context of cleaning to be cleaned plastic waste from the plastic waste and are sieved through the sieve wall 7 of the screen tube 6.
  • debris soiled in particular comprising paper, sand, glass and / or similar adhesions in the context of cleaning to be cleaned plastic waste from the plastic waste and are sieved through the sieve wall 7 of the screen tube 6.
  • the speed of the shaft 11 via the drive unit 12 is reduced.
  • the degree of purification of the cleaned plastic waste is advantageously determined by the rotational speed of the shaft 11, the amount of plastic waste to be cleaned and / or the application time of the cleaning.

Landscapes

  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Combined Means For Separation Of Solids (AREA)
EP08007301A 2007-04-25 2008-04-11 Dispositif de nettoyage mécanique de déchets plastiques Withdrawn EP1985379A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202007006040 2007-04-25

Publications (1)

Publication Number Publication Date
EP1985379A1 true EP1985379A1 (fr) 2008-10-29

Family

ID=39673009

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08007301A Withdrawn EP1985379A1 (fr) 2007-04-25 2008-04-11 Dispositif de nettoyage mécanique de déchets plastiques

Country Status (1)

Country Link
EP (1) EP1985379A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019108530B3 (de) * 2019-04-02 2020-02-13 Johannes Wissing Vorrichtung zum mechanischen Reinigen von kleinstückigem Material
CN112619843A (zh) * 2020-12-28 2021-04-09 侯建锋 防水砂浆制造用预处理破碎筛分设备及防水砂浆制备方法
CN113164889A (zh) * 2017-06-22 2021-07-23 塞德里克·简-吕克·万德本肯 用于从污染的有机物-无机物废物流中分离有机物的设备和方法
IT202100030821A1 (it) * 2021-12-07 2023-06-07 Biase Damian Di Sistema pulitura griglia per trituratori di foglie e rami di ulivo

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1939401A1 (de) * 1969-08-02 1971-02-11 Miag Muehlenbau & Ind Gmbh Vorrichtung zum Sichten von Feinkorngut
US4193865A (en) * 1976-03-16 1980-03-18 Oy Tampella Ab Classifying apparatus for a suspension
US4328096A (en) * 1980-03-17 1982-05-04 The Black Clawson Company Dual flow screening apparatus
US20030168537A1 (en) * 2002-03-05 2003-09-11 Hart Thomas S. Granulator
JP2005205370A (ja) * 2004-01-26 2005-08-04 Magnetec Japan Ltd 異物類除去装置及び異物類除去方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1939401A1 (de) * 1969-08-02 1971-02-11 Miag Muehlenbau & Ind Gmbh Vorrichtung zum Sichten von Feinkorngut
US4193865A (en) * 1976-03-16 1980-03-18 Oy Tampella Ab Classifying apparatus for a suspension
US4328096A (en) * 1980-03-17 1982-05-04 The Black Clawson Company Dual flow screening apparatus
US20030168537A1 (en) * 2002-03-05 2003-09-11 Hart Thomas S. Granulator
JP2005205370A (ja) * 2004-01-26 2005-08-04 Magnetec Japan Ltd 異物類除去装置及び異物類除去方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113164889A (zh) * 2017-06-22 2021-07-23 塞德里克·简-吕克·万德本肯 用于从污染的有机物-无机物废物流中分离有机物的设备和方法
EP3826758A4 (fr) * 2017-06-22 2022-04-13 Vanderbeken, Cedric Jean-Luc Procédé et appareil pour séparer des matières organiques d'un flux de déchets organiques-inorganiques contaminés
DE102019108530B3 (de) * 2019-04-02 2020-02-13 Johannes Wissing Vorrichtung zum mechanischen Reinigen von kleinstückigem Material
CN112619843A (zh) * 2020-12-28 2021-04-09 侯建锋 防水砂浆制造用预处理破碎筛分设备及防水砂浆制备方法
IT202100030821A1 (it) * 2021-12-07 2023-06-07 Biase Damian Di Sistema pulitura griglia per trituratori di foglie e rami di ulivo

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