WO2004048006A1 - Procede et dispositif pour separer des particules de poussiere d'un granulat - Google Patents

Procede et dispositif pour separer des particules de poussiere d'un granulat Download PDF

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Publication number
WO2004048006A1
WO2004048006A1 PCT/EP2003/013401 EP0313401W WO2004048006A1 WO 2004048006 A1 WO2004048006 A1 WO 2004048006A1 EP 0313401 W EP0313401 W EP 0313401W WO 2004048006 A1 WO2004048006 A1 WO 2004048006A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
dust particles
air
granules
granulate
Prior art date
Application number
PCT/EP2003/013401
Other languages
German (de)
English (en)
Inventor
Manfred Butsch
Original Assignee
Mbengineering Gmbh & Co. Kg
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 Mbengineering Gmbh & Co. Kg filed Critical Mbengineering Gmbh & Co. Kg
Priority to AU2003293738A priority Critical patent/AU2003293738A1/en
Publication of WO2004048006A1 publication Critical patent/WO2004048006A1/fr

Links

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
    • B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
    • B07B4/08—Separating solids from solids by subjecting their mixture to gas currents while the mixtures are supported by sieves, screens, or like mechanical elements
    • 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
    • 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
    • B07B1/22—Revolving drums
    • 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
    • B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
    • B07B11/04—Control arrangements
    • 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
    • B29B2017/0203—Separating plastics from plastics
    • 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
    • B29B2017/0224—Screens, sieves
    • 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
    • B29B2017/0241—Mechanical separating techniques; devices therefor using density difference in gas, e.g. air flow
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/065—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts containing impurities
    • 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

  • the invention relates to a method for separating dust particles from a granulate.
  • the invention relates to a device for separating dust particles from a granulate.
  • Granules which in the following are also to be understood as mixtures of different types or types of granules, can be found in a wide variety of applications. In particular in the manufacture of a wide variety of goods and components made of plastic, plastic granulate is widely used as the starting material.
  • Plastic dust often arises during the manufacture of the plastic granulate.
  • the dust particles result from the cold cut when extruding into the new goods, since some granules cannot be produced by hot cut due to production.
  • the actual product usually has a sprue attached to it.
  • this sprue i.e. to regranulate it in a plastic mill and to feed it back into the product manufacturing process.
  • a comparatively high proportion of plastic dust is usually contained in the regrind from such plastic mills.
  • the granules are usually not transferred directly from the manufacturer to the end product, but have to be transported to another location for further processing. During this transport, the granules rub against each other and the transport surface causes friction. holder is a fine-grained abrasion of the granules. The same happens when granules are transported in the pipelines of conveyor systems. Plastic dust is created again by internal friction between the granules and by friction on the inner walls of the pipe.
  • Plastic dust or dust that has been brought in from the environment can cause quality and processing problems in the production of plastic parts. If the proportion of dust in the new goods or the regrind is too high, this can lead to discoloration of the end product or dust inclusions in the auger of the spraying machine, which in turn leads to bridging in the feed of the screw, so that no further material is required can and the spraying machine fails. As a result, there is an increased amount of rejects and / or longer machine downtimes during production.
  • a device is also known from DE 100 04 688 AI, in which an air classifier is integrated to separate the dust particles from the granulate.
  • a stream of air flowing in from the side is guided here through falling granules, the dust particles being carried along due to their lower mass and being fed to a suction device.
  • a device for separating dust particles is known from US Pat. No. 6,004,404, in which a sieve drum is used. This is used to remove coarse impurities from the granulate.
  • the contaminated granulate is first passed onto the sieve drum from the outside. Granules and dust particles penetrate through the openings in the sieve drum into the interior of the sieve drum, from where they in turn fall outwards. Coarse contaminants, on the other hand, cannot penetrate the sieve drum and are sorted out.
  • the granules that have fallen through the sieve drum together with the dust particles are then fed to an air classifier, in which an air flow supplied carries the dust particles against gravity, while the granules fall downwards into a collecting container.
  • a disadvantage of the method mentioned or of the devices mentioned is that the degree of dust particle separation cannot be varied without modification of the devices or that different types of granules can be adapted.
  • a cascading would have to be carried out in order to reduce the residual dust content in the granulate.
  • rer devices required in the device from DE 100 04 688 AI an extension of the wind sifting duct, possibly connected with additional air flows flowing in from the side, would have to take place.
  • the invention was therefore based on the problem of providing a flexible method and a corresponding device with which the degree of separation of the dust particles from the granulate can be varied simply, in particular without structural changes to the devices using the method.
  • the basic idea of the invention is that the granules contaminated with dust particles are introduced into a container, the container wall of which is provided with passage openings for the dust particles.
  • an air stream where air is generally understood to mean gases and gas mixtures, is conducted into the container, which whirls up granules and dust particles and carries them to the container wall. Air flow and dust particles pass through the container wall to the outside, while the granulate is retained in the container.
  • the granules can be of any length remain in the container and dust particles are continuously discharged so that the degree of separation of dust particles can be varied easily.
  • the granules are mixed by the air flow being stirred up.
  • the granules consist of several components, it is therefore advantageous to leave the granules in the container and to stir them up until homogeneous mixing has taken place.
  • the container can be made by joining solids or fibers or consist of at least one solid solid that is provided with through-openings, such as a perforated plate.
  • the container is preferably designed as a sieve drum. However, this serves a completely different purpose than the one mentioned above from US 6,004,404.
  • the sieve drum is used to separate coarse impurities from the granulate. The separation of the
  • Dust particles from the granulate take place in a wind sifter and not using the sieve drum.
  • this device does not allow a simple variation in the degree of separation of the dust particles, nor does a defined separation between the granules and dust particles take place.
  • all parts touching the granulate are preferably made of stainless steel, which enables these parts to be cleaned quickly and easily. This is particularly advantageous if different granules are to be treated in chronological order.
  • at least one suction device is arranged outside the container. Together with the supplied air, this creates an air flow that carries the dust particles and the granulate to the container wall. After the air flow has passed through the container wall, the air carrying the dust particles can be removed via the suction device.
  • a further development of the invention consists in generating the air flow with at least one turbine, which is preferably speed-controlled. In this way, a simple regulation of the amount of air supplied or its flow rate is possible, which influences the strength of the granulate or dust whirling up and the amount of dust particles discharged. In addition to the dwell time of the granules in the container, a further parameter is therefore available for varying the degree of separation of dust particles from the granules.
  • the air flow is preferably not fed continuously to the container, but rather is pulsed. In this way, the pressure in a housing surrounding the container is lower, so that the likelihood of dust escaping into the surroundings is reduced.
  • the air flow in the container is alternately generated either by the air introduced via the feed or by the suction device. In this way, dust particles that have been whirled up to a large extent can first be removed more efficiently. In addition, a pressure in the container that is higher than the environment and thus dust escape can be prevented in this way.
  • a further development consists in vacuum-removing the granules from the container after separating the dust particles, i.e. in particular to suck it out of the container by means of negative pressure in a discharge line and to feed it for further processing.
  • the air flow is a heating and / or before being fed into the container Flows through drying device.
  • drying device in addition to separating the dust particles from the granules, they can also be dried. So far, this has been done by an additional, separate drying device, which was upstream or downstream of the device for separating the dust particles.
  • At least one heat source is arranged in the container, with which the granulate therein or the air flowing through the container is heated or dried. This can be done in addition or as an alternative to the above-mentioned heating / drying of the air flow outside the container.
  • an advantageous development of the invention consists in ionizing at least part of the air forming the air flow before it is introduced into the container. For example, this is achieved in that the air flow flows through a known ionization device before being fed into the container.
  • the container is rotatably mounted along at least one axis, preferably in the operating position, ie the arrangement during the process of separating the dust particles, and does not run vertically, and rotates at least temporarily circumferentially or reversing about at least one of these axes.
  • This rotational movement enables a homogeneous separation of the dust particles or homogeneous drying of the granules to be achieved more quickly.
  • the container can be placed in different positions for filling or emptying.
  • An advantageous further development consists in providing the inside of the container with webs on the container wall. When the container rotates, these prevent the granules from slipping off the inner container wall, which hinders mixing. If, on the other hand, webs are attached, such a sliding movement is interrupted, the granulate is deflected, falls over the webs and is consequently better mixed.
  • the webs are preferably designed such that they run parallel to that axis of rotation of the container around which the container rotates during the separation of the dust particles.
  • the webs When arranging the webs, it makes sense to take the orientation of the container into account during emptying. If, at this point in time, the container is tilted by 90 ° relative to a horizontal axis in relation to the operating position, the preferred arrangement of the webs mentioned above is particularly advantageous since no granules are emptied by the webs when emptying is withheld. In other operating or emptying positions of the container or other positions of the axes of rotation, the webs m can be arranged in a correspondingly advantageous manner.
  • the container is expediently filled volumetrically or gravimetrically with valves or sliders via supply lines and / or storage containers.
  • the valves can be designed entirely or partially as pinch valves.
  • discharge line which is preferably separated from the container via a valve or slide control.
  • individual or all valves in these discharge lines can be designed as pinch valves.
  • Air contaminated with dust particles must generally not be released into the environment. It is therefore advantageous to integrate at least one filter device of a known type into the invention, through which the air stream carrying dust particles is guided in the container walls after flowing through the passage openings.
  • At least one of the filters in the above is preferred.
  • Filter device designed as a cartridge filter, through which the air is conducted from the outside into the interior of the filter and extracted there.
  • a compressed air supply is arranged in the interior of the filter, which is opened via a valve, in order to remove the dust particles deposited on the outer filter wall during air filtering and thus to clean the filter.
  • the various units are electronically controlled and are able to communicate electronically with one another. In this way, the time sequence of individual control signals and individual process steps can be optimized and automated with regard to their efficiency.
  • FIG. 4 Integration of the screening drum from Figures 1 to 3 in a granulate processing system
  • the device is shown in a vertical position, as it seems appropriate for the introduction of the granules 40 contaminated with dust particles into the container, which is designed here as a sieve drum 10.
  • the sieve drum 10 is surrounded by an airtight housing 20, to which a material / air supply 24 and a connection for the suction device 22 are attached.
  • the airtight housing 20 and the sieve drum 10 are rotatably mounted about the tilt axis 6 mounted on the axles 30. By tilting it, the device is moved from the loading position to the operating position shown in FIG.
  • air 50 is now introduced via the material / air supply 24 and air 50a via a second supply 60, which extends over the entire length of the sieve drum.
  • the second feed 60 is provided along its length with outlet openings from which the air 52 flows into the sieve drum. In addition, this second feed 60 can be regulated via the feed valve 62. At the same time as the air supply is sucked off via the connection of the suction device 22. The air stream that forms swirls up granules and dust particles in the sieve drum 10 and carries them to the wall 11 of the sieve drum 10 provided with through-openings 12. The air 55 carrying dust particles is fed via the connection of the suction device 22 to a filter device known per se.
  • an infrared heater 15 is axially mounted in the sieve drum, which heats the granules or the air flowing through them.
  • the process of separating the dust particles and / or drying is supported by at least occasionally rotating or reversing rotation of the sieve drum 10 about the axis of rotation 5, as a result of which homogeneous separation or drying of the granules is achieved more quickly.
  • FIG. 3 shows a possible unloading position. Housing 20 and sieve drum 10 were tilted about the tilt axis 6 in such a way that the material / air supply 24 points downward. The granules 70, which have been separated from and dried by dust particles, fall out downwards and can be sent for further processing. The emptying process can be supported or accelerated by rotating the screening drum 10 about the axis of rotation 5.
  • FIG. 4 shows the sieve drum 110 from FIGS. 1 to 3 in cooperation with advantageous developments.
  • this mixture of granules is sucked via a vacuum generated by the suction device 180 through the feed line 143 into the sieve drum 110, which is surrounded by the airtight housing 120.
  • the screen drum 110 is rotatably mounted as described in FIGS. 1 and 3, so that it can be tilted in the indicated directions 106 and temporarily rotates in the direction 105.
  • the sieve drum 110 After the sieve drum 110 has been filled in the loading position shown in FIG. 1, the sieve drum 110 is tilted into the operating position shown in FIG. 2, the valve of the material feed 144 is closed and instead the valve for the air feed 154 is opened, so that air 150 initially flows
  • the air carrying dust particles after flowing through the through openings 12 is extracted via the suction line 155 and fed to the filter device 181, which is equipped with two cartridge filters 185a and 185b, on the outer walls of which the dust particles settle.
  • the sieve drum 110 is tilted into the unloading position shown in Figure 3. After switching off the suction device or closing the suction valve 187 and opening the valve for the material discharge 177, the granules 170 separated and dried from dust particles are removed from the screening drum in the manner described above with reference to FIG. 3 and / or sucked off via the material discharge line 175 ,
  • cartridge filters 185a and 185b are cleaned via compressed air feeds arranged inside them, the detached dust particles being collected in a collecting container 190.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

L'invention concerne un procédé pour séparer des particules de poussière d'un granulat, selon lequel on fait passer à travers le granulat un courant d'air qui entraîne les particules de poussière. Le granulat contenant les particules de poussière est introduit dans un contenant (10) dont la paroi (11) est pourvue d'ouvertures de passage (12) pour les particules de poussière et dans lequel le granulat est soulevé en tourbillons par le courant d'air (24 ; 60) introduit par l'intermédiaire d'une conduite d'amenée et est entraîné vers la paroi (11) du contenant où se produit une évacuation des particules de poussière à travers les ouvertures de passage (12) alors que le granulat reste dans le contenant. L'invention concerne également un dispositif qui applique le procédé selon l'invention de manière appropriée. Il est possible, dans le procédé selon l'invention et le dispositif correspondant, de sécher le granulat ou, en présence de différents types de granulats, de mélanger ces derniers en même temps qu'on sépare les particules de poussière.
PCT/EP2003/013401 2002-11-28 2003-11-28 Procede et dispositif pour separer des particules de poussiere d'un granulat WO2004048006A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003293738A AU2003293738A1 (en) 2002-11-28 2003-11-28 Method and device for separating dust particles from a granulate

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10255752.7 2002-11-28
DE10255752 2002-11-28

Publications (1)

Publication Number Publication Date
WO2004048006A1 true WO2004048006A1 (fr) 2004-06-10

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PCT/EP2003/013401 WO2004048006A1 (fr) 2002-11-28 2003-11-28 Procede et dispositif pour separer des particules de poussiere d'un granulat

Country Status (2)

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AU (1) AU2003293738A1 (fr)
WO (1) WO2004048006A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1818111A2 (fr) * 2006-02-14 2007-08-15 Moretto S.P.A. Dispositif et installation de suppression de poussière pour les matériaux granuleux
EP1893357A1 (fr) * 2005-06-22 2008-03-05 Ricoh Company, Ltd. Appareil de nettoyage à sec et procédé susceptible de nettoyer l agent nettoyant
EP2711097A1 (fr) * 2012-09-21 2014-03-26 Klaus Wilhelm Procédé et dispositif de dépoussiérage de produits en vrac par ionisation
DE102013207354A1 (de) 2013-04-23 2014-10-23 Zf Friedrichshafen Ag Verfahren und Strahldüse zum Reinigen von Oberflächen
WO2019105700A3 (fr) * 2017-12-01 2019-09-26 Glatt Maschinen- Und Apparatebau Ag Dispositif de tamisage
WO2023161449A1 (fr) * 2022-02-25 2023-08-31 Hs-Tumbler Gmbh Dispositif et procédé pour une synchronisation

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB227528A (en) * 1923-10-18 1925-01-19 Shelton Iron Steel And Coal Co Improvements in or relating to the treatment of coal
GB1128145A (en) * 1966-08-10 1968-09-25 Kenneth Langshaw Whitaker Improvements in or relating to filtering apparatus
WO1987000454A1 (fr) * 1985-07-24 1987-01-29 Magyar Aluminiumipari Tröszt Appareil permettant de reguler la granulometrie de grains entre 20 et 300 microns
EP0316622A2 (fr) * 1987-11-20 1989-05-24 General Electric Company Méthode et dispositif de nettoyage des particules de résine polymère
WO1991005616A1 (fr) * 1989-10-13 1991-05-02 Charles Treffner Tamis rotatif servant a separer les fines contenues dans des matieres particulaires de faible densite
FR2738759A1 (fr) * 1995-09-20 1997-03-21 Delta Neu Dispositif de tri selectif de dechets et ligne de tri mettant en oeuvre ce dispositif
EP0801995A1 (fr) * 1996-04-12 1997-10-22 Umwelt-Technics-Nord GmbH Installation pour séparer par tamisage une fraction à granulométrie fine, d'une matière broyée
DE19606125A1 (de) * 1996-02-20 1998-03-05 Peter Sendrowski Trockentrennverfahren und Vorrichtung zur Trennung von Verbundstoffen aus leichter und schwerer schmelzbaren Teilmaterialien, insbesondere für Behälter, die mit biologischen Nährmedien gefüllt sind
DE10004688A1 (de) * 1999-02-03 2000-10-05 Manfred Butsch Kunststoffgranulatsichter

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB227528A (en) * 1923-10-18 1925-01-19 Shelton Iron Steel And Coal Co Improvements in or relating to the treatment of coal
GB1128145A (en) * 1966-08-10 1968-09-25 Kenneth Langshaw Whitaker Improvements in or relating to filtering apparatus
WO1987000454A1 (fr) * 1985-07-24 1987-01-29 Magyar Aluminiumipari Tröszt Appareil permettant de reguler la granulometrie de grains entre 20 et 300 microns
EP0316622A2 (fr) * 1987-11-20 1989-05-24 General Electric Company Méthode et dispositif de nettoyage des particules de résine polymère
WO1991005616A1 (fr) * 1989-10-13 1991-05-02 Charles Treffner Tamis rotatif servant a separer les fines contenues dans des matieres particulaires de faible densite
FR2738759A1 (fr) * 1995-09-20 1997-03-21 Delta Neu Dispositif de tri selectif de dechets et ligne de tri mettant en oeuvre ce dispositif
DE19606125A1 (de) * 1996-02-20 1998-03-05 Peter Sendrowski Trockentrennverfahren und Vorrichtung zur Trennung von Verbundstoffen aus leichter und schwerer schmelzbaren Teilmaterialien, insbesondere für Behälter, die mit biologischen Nährmedien gefüllt sind
EP0801995A1 (fr) * 1996-04-12 1997-10-22 Umwelt-Technics-Nord GmbH Installation pour séparer par tamisage une fraction à granulométrie fine, d'une matière broyée
DE10004688A1 (de) * 1999-02-03 2000-10-05 Manfred Butsch Kunststoffgranulatsichter

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1893357A1 (fr) * 2005-06-22 2008-03-05 Ricoh Company, Ltd. Appareil de nettoyage à sec et procédé susceptible de nettoyer l agent nettoyant
EP1893357A4 (fr) * 2005-06-22 2011-10-26 Ricoh Co Ltd Appareil de nettoyage à sec et procédé susceptible de nettoyer l agent nettoyant
EP1818111A3 (fr) * 2006-02-14 2007-10-10 Moretto S.P.A. Dispositif et installation de suppression de poussière pour les matériaux granuleux
EP1818111A2 (fr) * 2006-02-14 2007-08-15 Moretto S.P.A. Dispositif et installation de suppression de poussière pour les matériaux granuleux
DE102012108907B4 (de) 2012-09-21 2017-03-09 Klaus Wilhelm Verfahren und Vorrichtung zum Entstauben von Schüttgütern mittels Ionisierung
EP2711097A1 (fr) * 2012-09-21 2014-03-26 Klaus Wilhelm Procédé et dispositif de dépoussiérage de produits en vrac par ionisation
DE102012108907A1 (de) * 2012-09-21 2014-05-15 Klaus Wilhelm Verfahren und Vorrichtung zum Entstauben von Schüttgütern mittels Ionisierung
DE102013207354A1 (de) 2013-04-23 2014-10-23 Zf Friedrichshafen Ag Verfahren und Strahldüse zum Reinigen von Oberflächen
WO2014173799A1 (fr) 2013-04-23 2014-10-30 Zf Friedrichshafen Ag Procédé et buse de projection pour le nettoyage de surfaces
WO2019105700A3 (fr) * 2017-12-01 2019-09-26 Glatt Maschinen- Und Apparatebau Ag Dispositif de tamisage
CN111565858A (zh) * 2017-12-01 2020-08-21 格拉特机器设备有限公司 筛选装置
US11642700B2 (en) 2017-12-01 2023-05-09 Glatt Maschinen- Und Apparatebau Ag Screen apparatus
WO2023161449A1 (fr) * 2022-02-25 2023-08-31 Hs-Tumbler Gmbh Dispositif et procédé pour une synchronisation

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