EP2922672B1 - Ensemble puits de chute, dispositif et procédé destinés à nettoyer un puits de chute, notamment dans un dispositif permettant d'encoller des particules - Google Patents

Ensemble puits de chute, dispositif et procédé destinés à nettoyer un puits de chute, notamment dans un dispositif permettant d'encoller des particules Download PDF

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Publication number
EP2922672B1
EP2922672B1 EP13802269.4A EP13802269A EP2922672B1 EP 2922672 B1 EP2922672 B1 EP 2922672B1 EP 13802269 A EP13802269 A EP 13802269A EP 2922672 B1 EP2922672 B1 EP 2922672B1
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EP
European Patent Office
Prior art keywords
fall duct
chute
fall
cleaning
duct
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EP13802269.4A
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German (de)
English (en)
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EP2922672A1 (fr
Inventor
Reinhard Schwinn
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Dieffenbacher GmbH Maschinen und Anlagenbau
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Dieffenbacher GmbH Maschinen und Anlagenbau
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00—Pretreatment of moulding material
    • B27N1/02—Mixing the material with binding agent
    • B27N1/029—Feeding; Proportioning; Controlling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00—Pretreatment of moulding material
    • B27N1/02—Mixing the material with binding agent
    • B27N1/0263—Mixing the material with binding agent by spraying the agent on the falling material, e.g. with the material sliding along an inclined surface, using rotating elements or nozzles

Definitions

  • the present invention relates to a device according to claim 1 and a method for cleaning a chute, in particular a chute of a device for gluing particles according to the preamble of claim 10.
  • binder is understood to mean a so-called adhesive liquor which consists of an adhesive in its main component.
  • adhesive liquor which consists of an adhesive in its main component.
  • emulsion, hardener, formaldehyde scavengers, dyes, insect repellent and antifungal agents and other additives are added. It is also common to use the adhesive without additives.
  • binders without any claim to completeness: isocyanates, MDI, melamine urea formaldehyde (MUF), urea formaldehyde (UF), MUPF or PF.
  • the gluing is typically carried out such that the grit or the particles are introduced by means of a metering device in a chute and by means of nozzles which are arranged in the chute or this upstream, is acted upon or become the binder.
  • the glued spreading material is usually in a downstream of the chute drum with rotating conveying tools (mechanical mixer) treated and / or glued on and then sprinkled to a grit mat and then pressed in real time, before curing a glue.
  • the grit may be introduced directly into a spreader without passing through a mechanical mixer to sprinkle the grit mat and then crimp.
  • Such a device is for example off DE 10 2010 064 339 A1 , which discloses a device according to the preamble of claim 1, or the WO 2011 134844 A1 known.
  • these devices it usually happens that bind binder and particles glued with the binder on the inner wall of the chute, so that the chute tends to pollute with time. This makes it necessary to clean the chute regularly.
  • accesses or hatches are often provided in such devices, which are usually large industrial plants, can enter through the operator in the chute to clean the chute.
  • the cleaning is usually done by means of high-pressure cleaner and / or steam, water or solvents or other additives offset cleaning agents can be used.
  • a chute arrangement is specified, in particular for a device for gluing particles which at least partially consist of fibers and / or chips suitable for the production of material plates, the chute arrangement comprising a chute and a device for moving the chute and / or a chute element between a working position and a cleaning position.
  • the access to the chute or the chute element is not obstructed or impeded by other units of the gluing device, in particular a mixer or a dispensing and / or metering device.
  • the chute or the chute element is therefore easily accessible, which greatly facilitates cleaning.
  • this cleaning position there is also no danger that during cleaning a cleaning fluid, removed from the interior of the chute deposits or other waste enter the mixer and pollute it.
  • the means for moving may be arranged to perform a pivoting of the chute and / or the chute element about a pivot axis.
  • the pivot axis may be a substantially vertical or horizontal axis.
  • the means for moving may be arranged to perform a displacement of the chute and / or the chute element along a track axis.
  • the travel axis may be a substantially horizontal axis.
  • a collecting device for collecting a cleaning agent is provided, wherein the collecting device is arranged below the chute or the chute element in the cleaning position.
  • this collecting device can also be designed as a closure piece of the chute or of the subsequent system parts, in order to prevent the penetration of the cleaning agent, dirty water or detached foreign parts in these parts of the system.
  • a replacement chute or at least one replacement chute element is preferably provided, which is or is suitable for taking over the function of the first chute or the chute element and is preferably movable from a waiting position to the working position, while the first chute or the chute element moves in the cleaning position for cleaning is.
  • the chute to be cleaned can now be exchanged for a replacement chute, or a chute element against a replacement chute element during a change of business or other short interruption. This makes it possible to perform the production undisturbed by the cleaning and largely eliminate the interruption of operations by cleaning the chute.
  • the replacement chute or the replacement chute element is designed as a full substitute, that is additionally arranged in a high-quality fully replaceable version or that one "Dummy" is provided, which is suitable only for short-term use and it lacks essential features, but on the other hand requires no large investment technical investment.
  • a replacement chute can be made lighter overall and accordingly, the necessary suspensions or traversing devices can be made smaller, which reduces the investment costs.
  • a device for gluing particles which at least partially consist of fibers and / or chips suitable for producing material plates, may have a corresponding chute arrangement.
  • the apparatus further comprises a supply means for feeding the particles and a plurality of nozzles for discharging a binder, wherein the nozzles are arranged in an area within the chute and / or above an inlet opening of the chute.
  • the device preferably also has a mixing device downstream of the chute arrangement.
  • the device may further comprise a replacement chute or replacement chute element adapted to replace the chute or the chute element in the short or long term.
  • a method for cleaning a chute, in particular a chute of a device for gluing of particles, which at least partially consist of suitable for the production of material plates fibers and / or chips comprising the steps: moving the chute or a chute member from a working position in a cleaning position and cleaning the chute or the chute element in the cleaning position.
  • the method may further include the step of collecting cleaning agent exiting the chute or chute element in the cleaning position with a catcher.
  • a pivoting of the chute and / or the chute element about a pivot axis or a displacement of the chute and / or the chute element along a track axis can be performed.
  • inventive features described above can also be realized, in which a partial opening is performed by moving or moving a part of the chute.
  • the outlet of the chute is decoupled from the downstream system parts or at least sealed by means of a suitable means.
  • a replacement chute or a replacement chute element can be moved from a waiting position into the working position, while the chute or a chute element is being cleaned in the cleaning position. This makes it possible to perform the production undisturbed by the cleaning and largely eliminate the interruption of operations by cleaning the chute.
  • an inferior replacement chute this will serve as a replacement for the chute (-elements) only during cleaning, in a fully equivalent design can be dispensed with a quick return and at scheduled intervals, preferably in case of other production disturbances or interruptions an exchange or change take place.
  • FIG. 1 is a schematic view of a device for the gluing of particles beginning with the metering device 2 and ending with a mixing device 7 in a general representation.
  • a chute 10 is arranged.
  • the particles are introduced as a particle stream 1 into the metering device 2, usually from a particle bunker by means of discharge devices, weighed there and introduced via a standard belt control (not shown) for metering into a first or upper chute section of the chute 10.
  • the particle stream 1 or the particles impinges on an optional dissolving device 3 and is there dissolved and / or split into a particle curtain 5.
  • the opening device 3 can in particular rake and / or baffles, spoke rollers (consisting of at least two discs having a radial distance to the axis of rotation (with or without a continuous shaft) rods, tubes or the like arranged parallel to the axis of rotation) and / or opening rollers, preferably designed as spiked rollers have.
  • the dissolved particle curtain 5 is then sprayed by means of suitable nozzles 6 with a binder and glued.
  • the glued particle stream is then stored in a dosing hopper or directly into a spreader to form a grit mat in the further course can be pressed in a press to a material plate and / or cured, introduced.
  • the chute 10 may consist of several sections or segments or elements, such as the chute element 11 and the chute element 12, each forming a segment of the chute 10.
  • this is not restrictive and it is also possible, depending on the application, that the chute 10 has only one chute segment, such as the chute element 12, as the chute 10, for example.
  • the FIG. 1 represents the device in an operating position or working position, are glued in the particles of fibers or chips.
  • the chute 10 To clean the chute 10, it is provided that the chute 10, or a chute element 11, 12, is moved from the working position into a cleaning position, as described below with reference to FIGS FIG. 2 is described.
  • FIG. 2 schematically illustrates with solid lines a chute or a chute element 12, which is in a working position, wherein, the outlet of the chute segment is in communication with the inlet of the mixing device 7.
  • the cleaning fluid and / or the wastes may be collected with a catcher 15, such as a catch basin, for example, to be fed to an orderly disposal and / or reprocessing.
  • a catcher 15 such as a catch basin
  • a corresponding device for moving is provided, which forms a chute arrangement 20 together with the chute or the chute element 12.
  • the means for moving is designed as a slide rail 14 of high load on which a carriage 13 is slidably mounted.
  • the chute or the chute element 12 is supported supported on the carriage 13.
  • a drive device not shown, the carriage 13, and thus the chute or the chute element 12, can be moved from the working position into the cleaning position and back again along a substantially horizontal axis.
  • two slide rails 14 are provided, which are arranged on both sides of the chute or the chute element 12.
  • the chute element 12 may form an element of a composite chute 10. Likewise, the chute element 12 itself can constitute a chute.
  • chute can be opened along a preferably vertical parting line.
  • FIG. 3 schematically illustrates another example of a chute assembly 20.
  • the chute 12 is composed of two chute elements 12a, 12b. Similar to the example of FIG. 2 may be provided for moving in the form of a slide rail 14, on which a carriage 13 is slidably mounted.
  • the chute element 12b is supported on the carriage 13.
  • a drive device not shown
  • the carriage 13, and thus the chute element 12b can be moved from the working position into the cleaning position and back again along a substantially horizontal axis.
  • the chute can be opened and both chute elements 12a, 12b are easily accessible from the side and can be easily cleaned.
  • FIG. 4 schematically illustrates another example of a chute assembly 20.
  • the chute element 12 is rotatably supported on a receptacle 16 about a substantially horizontal axis of rotation.
  • the chute element 12 can therefore be positioned between a substantially vertical orientation corresponding to the operating position in which FIG. 4 shown in phantom, and an inclined thereto at an angle orientation as the cleaning position, in the FIG. 4 shown with solid lines, be adjusted.
  • the inlet and the outlet of the chute element 12 are again not obstructed or impeded by other units of the gluing device, in particular a mixer or a dispensing and / or metering device.
  • the chute element 12 is therefore easily accessible, which greatly facilitates cleaning.
  • FIGS. 5a to 5c schematically illustrate yet another example of a chute assembly 20.
  • the alternative use of a chute 10 instead of a chute member 12 is not lifted, but may be provided alternatively or in combination.
  • FIG. 5a is the chute element 12 shown in the working position A.
  • cleaning position B right
  • a waiting position C left
  • the replacement chute 18 does not have all possible features and / or high-quality materials and is used only during the cleaning of the chute element.
  • the chute element 12 moves from the working position A along the slide rail 14 by means of the carriage 13 in the cleaning position B, in which a collecting device 15 may be arranged to be cleaned automatically or manually.
  • the spare chute 18 is moved separately or simultaneously from a waiting position C to the working position A, preferably also along the slide rail 14 and by means of a carriage.
  • the Drive problem is as previously not shown, since it is commercially available embodiments of the expert.
  • a collecting device 15 may also be provided or the waiting position C may be equipped as a cleaning position B.
  • This is particularly preferably implemented if the replacement chute corresponds in its properties and essential features to the chute element 12, and thus continuous interoperable operation is possible. This may be necessary in particular in extreme operating conditions (highly adhesive binder), which make a weekly or even daily cleaning necessary.
  • a chute can have more than two elements, such as annular segments of a chute or, for example, each as one of a plurality of side elements, such as wall elements of a polygonal chute.
  • a chute element can be moved linearly into a cleaning position, while another chute element is pivoted about an axis.
  • a chute or chute member may be both linearly displaced and pivoted about a pivot axis to be moved to a cleaning position.
  • the chute is tapered in the direction of the particle from top to bottom in cross section.
  • the chute can be cylindrical, conical, cube-shaped, regular or irregular polygon, or wedge-shaped.
  • the chute in the region of the inlet and in the region of the outlet have cross-sections of different shapes.
  • the outlet may also be assigned a closure piece 4 (cf. Figure. 1 ). This serves to seal divisible chute elements with respect to the subsequent system parts or to prevent altogether during the cleaning that foreign materials in the subsequent system parts, in particular a mixing device 7, advised.
  • the cross sections of different shapes may be selected from circular, elliptical, square, rectangular, a shape of a regular or irregular polygon, and a shape consisting of composite arc segments.
  • the chute can be designed in several parts, with a plurality of walls, each forming an inner wall of the chute.
  • a cooling device can be realized.
  • the present invention is also conceivable for the wetting of other dissolvable or free-flowing particles, such as, for example, flour with water or starch, or the like. (1446)

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Cleaning In General (AREA)
  • Road Signs Or Road Markings (AREA)
  • Road Repair (AREA)
  • Road Paving Structures (AREA)

Claims (13)

  1. Dispositif pour l'encollage de particules qui se composent au moins partiellement de fibres et/ou de copeaux convenant pour la fabrication de panneaux de particules, comprenant en outre
    une installation d'alimentation pour amener les particules (1) et
    plusieurs buses (6) pour appliquer un liant, les buses étant disposées à l'intérieur d'une gaine de descente (10) et/ou au-dessus d'une ouverture d'entrée d'une gaine de descente (10),
    caractérisé en ce que le dispositif présente une disposition de gaine de descente (20) avec une gaine de descente (10), la disposition de gaine de descente (20) comprenant en outre un dispositif pour déplacer la gaine de descente (10) et/ou un élément de gaine de descente (11, 12) entre une position de travail et une position de nettoyage.
  2. Dispositif selon la revendication 1, caractérisé en ce que le dispositif pour le déplacement de la gaine de descente (10) et/ou d'un élément de gaine de descente (11, 12) est conçu pour faire pivoter la gaine de descente (10) et/ou l'élément de gaine de descente (11, 12) autour d'un axe de pivotement.
  3. Dispositif selon la revendication 1, caractérisé en ce que le dispositif (13, 14) pour le déplacement de la gaine de descente (10) et/ou d'un élément de gaine de descente (11, 12) est conçu pour exécuter une translation de la gaine de descente (10) et/ou l'élément de gaine de descente (11, 12) le long d'un axe de déplacement.
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que le dispositif pour le déplacement de la gaine de descente (10) ou d'au moins un élément de gaine de descente (11, 12) comprend un chariot (13), un rail de glissement (14) et/ou un réceptacle (16).
  5. Dispositif selon la revendication 1, comprenant en outre un dispositif de collecte (15) pour la collecte, lequel dispositif de collecte (15) est disposé en dessous de la gaine de descente (10) ou de l'élément de gaine de descente (11, 12) dans la position de nettoyage.
  6. Dispositif selon la revendication 1, caractérisé en ce qu'il est prévu une gaine de descente de remplacement (18) ou au moins un élément de gaine de descente de remplacement, qui convient pour assurer la fonction de la première gaine de descente (10) ou de l'élément de gaine de descente (11, 12) et qui peut de préférence être déplacé d'une position d'attente (C) à la position de travail (A) pendant que la première gaine de descente (10) ou l'élément de gaine de descente (11, 12) est déplacé dans la position de nettoyage (B) en vue du nettoyage.
  7. Dispositif selon la revendication 6, caractérisé en ce que gaine de descente de remplacement (18) ou l'élément de gaine de descente de remplacement convient comme remplacement à part entière ou seulement pour une utilisation de courte durée.
  8. Dispositif selon la revendication 1, comprenant en outre un dispositif mélangeur (7) monté en aval de la gaine de descente (10) ou du disposition de gaine de descente (20).
  9. Dispositif selon la revendication 1, comprenant en outre une gaine de descente de remplacement (18) ou un élément de gaine de descente de remplacement convenant pour remplacer la gaine de descente (10) ou l'élément de gaine de descente (11, 12) sur une courte ou une longue durée.
  10. Procédé pour nettoyer une gaine de descente (10) d'un dispositif pour l'encollage de particules (1) composées au moins en partie de fibres et/ou de copeaux convenant pour la fabrication de panneaux de matériau, comprenant
    une installation d'alimentation pour amener les particules (1) et
    plusieurs buses (6) pour appliquer un liant, les buses étant disposées à l'intérieur de la gaine de descente (10) et/ou au-dessus d'une ouverture d'entrée d'une gaine de descente (10),
    comprenant les étapes suivantes :
    déplacement de la gaine de descente (10) ou d'un élément de gaine de descente (11, 12) d'une position de travail à une position de nettoyage et
    nettoyage de la gaine de descente (10) ou de l'élément de gaine de descente (11, 12) dans la position de nettoyage.
  11. Procédé selon la revendication 10, comprenant en outre l'étape de collecte du produit nettoyant sortant de la gaine de descente (10) ou de l'élément de gaine de descente (11, 12) dans la position de nettoyage avec un dispositif de collecte (15).
  12. Procédé selon la revendication 10 ou 11, caractérisé en ce qu'un pivotement de la gaine de descente (10) et/ou l'élément de gaine de descente (11, 12) autour d'un axe de pivotement ou une translation de la gaine de descente (10) et/ou l'élément de gaine de descente (11, 12) le long d'un axe de déplacement est exécuté pendant l'étape de déplacement.
  13. Procédé selon la revendication 11, caractérisé en ce qu'une gaine de descente de remplacement (18) ou un élément de gaine de descente de remplacement peut être déplacé d'une position d'attente (C) à la position de travail (A) pendant que la gaine de descente (10) ou un élément de gaine de descente (11, 12) est nettoyé dans la position de nettoyage (B).
EP13802269.4A 2012-11-22 2013-11-22 Ensemble puits de chute, dispositif et procédé destinés à nettoyer un puits de chute, notamment dans un dispositif permettant d'encoller des particules Active EP2922672B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012111310 2012-11-22
PCT/EP2013/074512 WO2014079987A1 (fr) 2012-11-22 2013-11-22 Ensemble puits de chute, dispositif et procédé destinés à nettoyer un puits de chute, notamment dans un dispositif permettant d'encoller des particules

Publications (2)

Publication Number Publication Date
EP2922672A1 EP2922672A1 (fr) 2015-09-30
EP2922672B1 true EP2922672B1 (fr) 2018-02-07

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EP13802269.4A Active EP2922672B1 (fr) 2012-11-22 2013-11-22 Ensemble puits de chute, dispositif et procédé destinés à nettoyer un puits de chute, notamment dans un dispositif permettant d'encoller des particules

Country Status (4)

Country Link
EP (1) EP2922672B1 (fr)
CN (1) CN104812541B (fr)
DE (1) DE102013112947A1 (fr)
WO (1) WO2014079987A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102017103460A1 (de) 2017-02-20 2018-08-23 Dieffenbacher GmbH Maschinen- und Anlagenbau Steuervorrichtung und -verfahren zum Dosieren eines Bindemittels, eine Einbringvorrichtung und -verfahren zum Einbringen eines Bindemittels in einen Materialstrom sowie ein System zur Herstellung von Werkstoffplatten
DE202017100935U1 (de) 2017-02-20 2018-03-21 Dieffenbacher GmbH Maschinen- und Anlagenbau Steuervorrichtung zum Dosieren eines Bindemittels, eine Einbringvorrichtung zum Einbringen eines Bindemittels in einen Materialstrom sowie ein System zur Herstellung von Werkstoffplatten

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Publication number Priority date Publication date Assignee Title
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US3061063A (en) * 1961-03-20 1962-10-30 Donald E Rutten Silo chute hopper
WO2003086086A1 (fr) * 2002-04-17 2003-10-23 Metalquimia, Sa Machine a fabriquer et decouper des saucisses a tremie inclinable
ITVR20080062A1 (it) * 2008-05-26 2009-11-27 Moretto Spa Struttura di tramoggia
WO2009143562A1 (fr) * 2008-05-26 2009-12-03 Bonding Systems Australia Pty Ltd Procédé pour lier des matières particulaires pour fabriquer des articles
DE102008063914A1 (de) * 2008-12-19 2010-06-24 Dieffenbacher Gmbh + Co. Kg Verfahren und Anlage zur Herstellung von Werkstoffplatten aus Fasern oder faserähnlichen Materialien, ein Transportrohr oder einen Rohrtrockner für beleimte Fasern und eine Faserplatte
IT1399772B1 (it) * 2010-04-30 2013-05-03 Imal Srl Apparato per l'iniezione di componenti chimici in un flusso di materiale legnoso incoerente
DE102010064339A1 (de) * 2010-12-29 2012-07-05 Dieffenbacher GmbH Maschinen- und Anlagenbau Verfahren und Vorrichtung zur Benetzung von Streugut insbesondere von Fasern und/oder Spänen, mit einem Fluid
CN202113986U (zh) * 2011-05-04 2012-01-18 东北林业大学 一种用于纤维板施胶的超声波喷嘴装置
CN102642233B (zh) * 2011-07-06 2014-12-10 国家林业局北京林业机械研究所 高压无气雾化施胶方法及其施胶装置

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Publication number Priority date Publication date Assignee Title
US3966174A (en) * 1973-02-02 1976-06-29 Combustion Engineering, Inc. Premix nozzle for kold box process

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS, PANELS MAGAZINE, July 2012 (2012-07-01)
PANELWORD MAGAZINE, May 2012 (2012-05-01)

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Publication number Publication date
DE102013112947A1 (de) 2014-05-22
EP2922672A1 (fr) 2015-09-30
CN104812541B (zh) 2019-08-27
WO2014079987A1 (fr) 2014-05-30
CN104812541A (zh) 2015-07-29

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