EP2836283A1 - Dispositif permettant de filtrer une matière thermoplastique fondue - Google Patents

Dispositif permettant de filtrer une matière thermoplastique fondue

Info

Publication number
EP2836283A1
EP2836283A1 EP13712487.1A EP13712487A EP2836283A1 EP 2836283 A1 EP2836283 A1 EP 2836283A1 EP 13712487 A EP13712487 A EP 13712487A EP 2836283 A1 EP2836283 A1 EP 2836283A1
Authority
EP
European Patent Office
Prior art keywords
fluid
bolt
channel
discharge channel
bolts
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Withdrawn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
EP13712487.1A
Other languages
German (de)
English (en)
Inventor
Harald Pohl
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.)
Maag Automatik GmbH
Original Assignee
Maag Pump Systems GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=47998387&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2836283(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Maag Pump Systems GmbH filed Critical Maag Pump Systems GmbH
Publication of EP2836283A1 publication Critical patent/EP2836283A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13—Supported filter elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/27—Cleaning; Purging; Avoiding contamination
    • B29C48/2725—Cleaning; Purging; Avoiding contamination of filters
    • B29C48/273—Cleaning; Purging; Avoiding contamination of filters using back flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/69—Filters or screens for the moulding material
    • B29C48/691—Arrangements for replacing filters, e.g. with two parallel filters for alternate use
    • B29C48/6912—Arrangements for replacing filters, e.g. with two parallel filters for alternate use the filters being fitted on a single rectilinearly reciprocating slide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/255—Flow control means, e.g. valves
    • B29C48/2554—Flow control means, e.g. valves provided in or in the proximity of filter devices

Definitions

  • the invention relates to a device for filtering a fluid, in particular for filtering a thermoplastic polymer melt, with a housing having at least one fluid supply channel and at least one fluid discharge channel and at least two, mutually parallel and spaced bores, each with the fluid supply channel and the fluid discharge channel in fluid communication, wherein in each of the bores in each case a bolt displaced there, ie axially displaceable and / or radially rotatable, and is thereby stored fluid-tight, and each of the bolts is each provided with a Filtemest with an upstream side and a downstream side, the bolts each with at least between a first position, a Filtrier ein, in which the respective Filemest the inlet side is in fluid communication with the fluid supply channel and the downstream side with the fluid discharge channel, and a second position, a backwash position, in which the respective filter residue is in fluid communication with the upstream side with at least one backwash channel in the housing, according to the preamble of the claim 1.
  • Such devices for filtering a fluid are commonly referred to in the art as screen changers.
  • screen changers For example, foreign particles from the fluid to be filtered, for example, from molten
  • Plastic filtered out in the form of its polymeric melt can occur, for example, in the case of molten recycled material.
  • the corresponding filter or the corresponding sieve nest with residues sooner or later, so that a cleaning must be carried out.
  • two filter systems can be arranged parallel to each other, so that it is possible to continue running a filter system in operation, while the other is subjected to a cleaning.
  • a cleaning can be done, for example, by so-called rewinding with already filtered fluid contrary to the usual production flow direction of the fluid.
  • devices are known, which are referred to in the jargon as so-called backwash screen changer.
  • Plastic films with a small thickness it is therefore desirable to be able to ensure a continuous flow of filtered fluid without particular fluctuations per unit time, even if a filter needs to be cleaned or replaced.
  • bolts are provided which serve to receive the screens, and other bolts, which create by displacement separate cavities, which can be filled with already filtered fluid, said fluid then in a corresponding backwash position of the corresponding
  • Displacement bolt and the corresponding Siebmelzen used for cleaning in backwashing the screen surfaces The division there into functionally separated multiple bolt arrangements serves to maintain a constant flow of melt even in the case of a
  • German patent DE 196 12 790 C2 describes a device for filtering a fluid, in which two filters are arranged in a common bolt, so that, depending on the position of the bolt, different cavities in the bolt in FIG
  • the European Patent EP 1 778 379 B1 describes an apparatus and a method for filtering a fluid, in particular for plastics processing plants, which (s) should also maintain a constant volume flow even in the case of backwashing. In this case, after a local filter test in a melt channel, an additional displacement bolt is used, which cleaned in a suitable position of the filter test
  • Melting in the direction opposite to the direction of production can push in the backwashing through the appropriately positioned filter there. Also there can be maintained even in the case of cleaning by the multi-part design and the division of the function on different bolts, which carry the actual filter and the displacer, a substantially continuous melt flow.
  • the European Patent EP 0 577 680 B1 describes a filtering device for fluids to be cleaned, in which within a piston which carries the filter there, another piston is arranged, which in the case of a required backwashing there also already filtered material in countercurrent by the local there Filter can press. Again, the functions of filtertragendem piston and additional displacer are divided according to design and executed separately.
  • WO 98/47688 describes a filter for viscose compositions, in which also already filtered fluid there by an additional displacer in a
  • Melting channel can be pressed back in the appropriate position through the filter in the backwash position to clean the filter there accordingly. Also, a functional separation of portafilter and displacer is structurally provided.
  • the present invention is therefore based on the object, an apparatus for filtering a fluid, in particular for filtering a thermoplastic polymer Melting material to provide, in which a structurally simple way a filter cleaning in backflushing is possible.
  • a rewinding of the fluid can take place, which without disturbances and mass losses in the
  • the device according to the invention for filtering a fluid in particular for filtering a thermoplastic polymer melt, has a housing with at least one fluid supply channel and at least one Flmdabbowkanal and at least two, mutually parallel and spaced holes, each with the fluid supply channel and the Fluidabschreibkanal are in fluid communication, wherein in each of the bores in each case a bolt is axially displaceable there, radially rotatable and thereby stored fluid-tight, and each of the bolts is each provided with a Filtemest with an upstream side and a downstream side, the bolts each at least between a first Position, a Filtrier ein in which the respective Filtemest is in fluid communication with the upstream side with the fluid supply channel and with the downstream side with the fluid discharge channel, and a second position, a backwash position, in which the respective Filememest the inflow side is in fluid communication with at least one backwash passage in the housing, are displaceable.
  • each of the bolts in a third position a filling, displaced, in which flows via a respective clean fluid passage in the respective bolt fluid from the downstream side of the respective filter test to a resulting by the displacement of the respective bolt in the respective bore storage cavity, which then upon displacement of the respective bolt in the second position again flows through the respective screen nest to at least one backwashing and thus exits the housing.
  • the function of creating a cavity for receiving already cleaned fluid from the production in a component be combined with the corresponding possible backwashing by the displacement of the bolt through which the previously collected fluid can be backwashed through the corresponding filter in the same bolt.
  • positions are thus to be understood in terms of variable position with respect to the pin position, which in itself includes a displacement of the respective bolt and not limited to static "end points" of corresponding movements to be understood.
  • the downstream side of the respective filter test on the respective clean fluid channel a respective radially arranged on the respective bolt and only partially over the circumference of the one end face of the respective bolt extending radial groove and a respective axially extending longitudinal groove of the respective bolt to be connected to the at least one Fluidab Indeedkanal.
  • the respective longitudinal groove preferably extends over only an axial partial length of the respective bolt.
  • the respective radial groove is covered at the one end face of the respective bolt there by a respective cover plate, wherein the respective cover plate has a therethrough extending respective passage opening, so that a fluid connection between the respective radial groove and the respective storage cavity during the displacement movement of the bolt, in particular during axial displacement of the bolt forward or backward exists.
  • Backwash can also be backwashed again.
  • the respective radial groove and the respective longitudinal groove is connected to the at least one fluid discharge channel.
  • the continuous appropriate flow with fluid is particularly reliable, so that a solidification of fluid in otherwise possibly occurring cavities or dead spaces is not to be feared.
  • Femer preferred is an embodiment of the device according to the invention, wherein the respective bolt from the first position by radial rotation in a first intermediate position can be transferred and wherein depending on the size of the rotation angle of the fluid discharge channel through the wall of the respective bolt is partially or completely closed, so that with complete closure, the respective axially extending longitudinal groove of the respective bolt is no longer connected to the at least one fluid discharge channel.
  • Melting guide in the filter device according to the invention allows.
  • the corresponding bolts are kept very compact in size, without the need for additional expensive valves or seal arrangements are required.
  • the respective pin may preferably be displaceable in such a way that it is located both in the second position and in the first intermediate position at the same time.
  • the respective bolt may advantageously be displaceable in such a way that it is located both in the third position and in the second intermediate position at the same time.
  • the respective bolt may expediently be displaceable according to the invention such that it is located both in the first and second intermediate positions and / or in the second and third positions at the same time.
  • the seal by the bolt itself can thus be provided in a particularly effective and structurally simple manner by abutment of the bolt lateral surface for sealing the corresponding openings of the housing.
  • At least one backwashing channel is assigned to each filter residue.
  • Mass flow can be particularly easily realized during the backwashing of one of the sieves in one of the bolts.
  • the respective bolt can have a respective discharge channel, which in a fourth position, a starting position, of the respective bolt can be brought into fluid communication with the fluid supply channel and has an opening to the environment of the device, so that thereby fluid can be discharged from the device.
  • the housing of the device according to the invention may be preferably in one or more parts, for example in two parts, each housing part each having one of the holes, each having a fluid supply channel and a Fluidabbowkanal and one of the bolts, each with a filter residue, each having a backwash channel and a respective discharge channel.
  • the respective bolt can be displaced into a fifth position, a screen change position, in which the respective one filter nest is located outside the housing, so that the respective one Filtemest is interchangeable in this position, wherein the fifth position is in the direction opposite to the end face of the respective bolt.
  • the fifth position can be realized with a removable on the front side after removal of a cover plate out there bolt.
  • the respective pin may particularly preferably be so long and displaceable that in the fifth position the at least one fluid supply channel and the at least one fluid discharge channel are completely closed by the wall of the respective pin.
  • respective shut-off valves may be provided in front of the at least one fluid supply channel and after the at least one fluid discharge channel, by means of which the respective channels can be locked in the fifth position of the respective pin.
  • Suitably as simple as possible according to the invention may be the design of the respective bolt such that the starting position of the respective bolt, that is the fourth position described above, the fifth position described above, the screen change position corresponds.
  • the device comprises according to a preferred embodiment of the invention, two bolts which are mounted independently of each other between the first position, the second position, the third position, the fourth position, the fifth position and the first and second intermediate position movable through corresponding holes in the housing
  • the respective bolt filters the fluid to be filtered and, in the second position of the bolt, the filter residue of this bolt is not supplied with fluid to be filtered and opposite to the filtering direction of filtered fluid coming from the said bolt is supplied through the associated storage cavity, is flowed through that filled during filtration by the respective other bolt of the respective one bolt associated storage cavity by axial displacement of the respective one bolt from the first position to the third position or in the third and at the same intermediate position with filtered fluid is and that at least a portion of the thus stored fluid is then supplied by the displacement of the respective one bolt to the respective Filtemest the respective one bolt, if the respective one bolt from the third position or the third position and at the same time second intermediate position in the second position or the second position and at the same time first intermediate position is transferred.
  • Filter elements can be done.
  • FIG. 1 is a top perspective view of a filtration apparatus according to a first preferred embodiment of the invention
  • Fig. 2 is a schematic, partially sectioned view of a detail of a device
  • FIG. 1 the preferred embodiment of the invention according to FIG. 1;
  • Fig. 3 is a perspective top view of a device for filtering according to a
  • Fig. 4 is a schematic, partially sectioned view of a detail of a device
  • FIG. 5 is a schematic, sectional view of a detail of a device according to another preferred embodiment of the present invention.
  • FIG. 6 is a cross-sectional view according to a preferred embodiment of the invention shown in FIG. 5; FIG.
  • Fig. 7a, 7a 'to 7g, 7g' respectively show schematically partially sectioned views of
  • FIG. 1 is a perspective plan view of an apparatus for filtering a fluid according to a first preferred embodiment of the present invention.
  • the apparatus shown serves in particular for filtering a thermoplastic polymer melt and has a housing 1 with bolts 6, 7, which there in bores 4, 5 (upper bore 4 in Fig. 1 not seen) in the housing 1 extending movable, d , H. axially displaceable or radially rotatably mounted fluid-tight.
  • Each of the bolts 6, 7 has in each case at least one filter nest 8, 9 (upper filter nest 8 not visible in FIG. 1), with an inflow side and a downstream side.
  • the lower bolt 7 in a fifth position, a
  • Cover plate which is still shown for the upper bolt and attached to the housing (attached cover plate 28), moved out of the housing, so that a screen change can be made there end notebook.
  • Fig. 2 shows in a schematic sectional view of a detail of the device according to the invention shown in FIG. 1, a lower pin 7 in the filter change position in the direction of the actuator side away on the front side of the housing moved out in the fifth position, the screen change position.
  • the upper pin 6 shown there is in a second position, namely in a backwash position.
  • Fig. 2 also shows a discharge channel 29 at least of the lower pin 7, via which in the position shown it can be brought into fluid communication with the fluid supply channel 2 and has an opening to the environment of the device, thereby for example unsuitable fluid, e.g. when starting from the device can be discharged.
  • the corresponding discharge channel of the upper bolt 6 can not be seen through the rotated position of the bolt 6 in FIG.
  • FIG. 3 shows in a perspective plan view a device for filtering a fluid according to a second preferred embodiment of the invention.
  • the respective pin 6, 7 can be moved out of the housing 1 in the direction of the respective actuator 26, 27 in the screen changing position.
  • the device according to the invention shown there is designed such that there the filter change position corresponding to the position 5 is not end-side takes place, but by pulling the corresponding pin 7 in the direction of the actuator 27th
  • the actuators 26, 27 shown in FIGS. 1 and 3 for displacing the respective bolts 6, 7 are preferably hydraulic cylinders, which are connected via corresponding linkages with the respective bolt according to the invention and the described bolt displacements in the axial and radial directions with corresponding displacements and rotational movements
  • FIG. 4 shows in a schematic sectional view of a detail of the device according to the invention according to FIG. 3 a lower pin 7 in filter change position in the direction of the actuator side moved out of the housing.
  • the bolt 6 as well as the bolt 7 have a length in the axial direction, which makes it possible that by the bolt wall, the respective bore of the fluid supply channel 2 (as well as the Fluidabbowkanals 3 (not visible in Figures 1 to 5)) sealed is when the corresponding bolt is in the fifth position, the Sieb grillwolf.
  • the upper pin 6 shown there is in a first position, namely in an operating position.
  • FIG. 5 differs from the representation of FIG. 4 only in that the local pins 6 and 7 are each made shorter, so that through the
  • Fluid discharge channel 3 is possible. According to the embodiment shown in Fig. 5, therefore, the use of additional sealing elements is necessary.
  • FIG. 6 shows a cross-sectional view of a housing 1 with the therein
  • FIGS. 7a, 7a 'to 7g, 7g' the position of one of the bolts 6, 7 is shown schematically from a fluid outlet side (FIGS. 7a to 7g) or from a fluid inlet side (FIGS. 7a 'to 7g') in the housing 1 according to a preferred embodiment of the invention.
  • FIGS. 7a, 7a 'to 7g, 7g' the device according to the invention for filtering a fluid is shown, which can be used in particular for filtering a thermoplastic polymer melt.
  • each with spaced holes 4, 5 is a respective fluid supply channel 2 and a respective fluid discharge channel 3 associated with the respective mutually parallel bores and standing in fluid communication with these bores.
  • the housing 1 is made in one piece according to the embodiment shown. However, it is also possible in principle that each of the housing parts is designed individually with a respective bore and realized in a multi-part housing accordingly.
  • each of the bores 4, 5 is in each case a bolt 6, 7 there axially displaceable, radially rotatable and thereby stored fluid-tight. The bolt movement can over the
  • Actuators 26, 27 take place.
  • Each of the bolts 6, 7 has in each case a filter residue 8, 9 with an inflow side, from which fluid to be filtered flows, and with a downstream side, from which the filtered fluid flows off after the filter test.
  • the lower bolt 7 is in a first position, a filtering position, in which the filter nest 9 is in fluid communication with the inflow side with the fluid channel 2 and with the downstream side with the fluid channel 3.
  • the upper pin 6 is in an end position of a second position, a backwash position, in which the filter nest 8 of the upper pin 6 is in fluid communication with the upstream side thereof with an associated backwash channel 10. As shown, the backwashing process is already completed.
  • Fig. 7b, 7b ' shows both bolts 6, 7 respectively in the first position, the filtration position, wherein the downstream side of the respective filter modules 8, 9 of the respective bolt on respective
  • Radialnut 16, 17 and a respective axially extending longitudinal groove 18, 19 of the respective bolt 6, 7 is connected to the respective fluid discharge channel 3.
  • Reservoir cavity 14, 16 formed by the bolt movements in the third position exist.
  • the bolt 6 is in an axial displacement movement in a third position, a filling position, in which via the clean fluid channel 12 of the bolt 6, the fluid from the downstream side of the filter 8 to a test by the displacement of the bolt 6 in the bore 3 resulting supply cavity 14 flows (the corresponding
  • Storage cavity 15 of the lower bolt 6 is not shown in the figures). The movement of the bolt 6 is shown by the arrow in the figure.
  • Filtemests 8 of the bolt 6 is no longer connected to the associated fluid supply channel 2. Now, according to the backwashing of the filter test 8 of the bolt 6 done. If one looks at the illustration according to FIGS. 7f, 7f, it can be seen there that by renewed
  • the fluid from the storage cavity 14 is again pressed to the downstream side of the filter test 8 and through the filter nest 8 to the upstream side and thereby flows to the pin 6 associated with this backwash 10 and can escape from the housing 1.
  • the bolt 6 is in a second position, a backwash position, in which the filter nest 8 is in fluid communication with at least the backwash channel 10 with the upstream side and wherein the bolt 6 is further displaced axially accordingly.
  • FIGS. 8a, 8a ' similar to the sequence according to FIGS. 7a, 7a' to 7g, 7g ', schematically shows an embodiment of the device according to the invention, wherein the embodiment according to FIGS. 8a, 8a' of the embodiment according to the sequential Representation of FIG. 7 differs in that in Fig. 8a, 8a 'each no Cover plates 20, 21 are provided which cover the respective radial groove 16, 17 on the end face of the respective bolt 6, 7.
  • inventive device can thus constructively simple and space-saving allow a reliable backwashing and thus cleaning of the corresponding filter device.
  • the device according to the invention can thus be realized according to the invention in a simple manner constructive without high construction costs, a reliable in operation and yet easy to operate and fast to be cleaned by backwashing filter device.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

La présente invention concerne un dispositif permettant de filtrer une matière thermoplastique fondue, comprenant un boîtier (1) disposant d'au moins un canal d'alimentation du fluide (2) et d'au moins un canal d'écoulement du fluide (3) et d'au moins deux trous (4, 5), respectivement reliés de façon fluide avec le canal d'alimentation du fluide et avec le canal d'écoulement du fluide, dans chacun des trous étant logé un axe (6, 7) axialement mobile, radialement rotatif et dans le même temps étanche aux fluides, chacun des axes étant pourvu d'un filtre (8, 9) disposant d'un côté amont et d'un côté aval, les axes étant respectivement déplaçables entre au moins une position de filtration et une position de rétrolavage, chacun des axes étant déplaçable dans une position de remplissage dans laquelle un fluide s'écoule du côté aval du filtre respectif via un canal de fluide pur (12, 13) respectif dans un espace vide de réserve (14, 15) grâce au déplacement de l'axe respectif dans le trou respectif, qui, lors du déplacement de l'axe respectif dans la position de rétrolavage s'écoule à nouveau à travers le filtre respectif vers au moins un canal de rétrolavage et s'échappe du boîtier.
EP13712487.1A 2012-03-30 2013-03-22 Dispositif permettant de filtrer une matière thermoplastique fondue Withdrawn EP2836283A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012006563A DE102012006563B3 (de) 2012-03-30 2012-03-30 Vorrichtung zum Filtrieren eines Fluids
PCT/EP2013/000886 WO2013152830A1 (fr) 2012-03-30 2013-03-22 Dispositif permettant de filtrer une matière thermoplastique fondue

Publications (1)

Publication Number Publication Date
EP2836283A1 true EP2836283A1 (fr) 2015-02-18

Family

ID=47998387

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13712487.1A Withdrawn EP2836283A1 (fr) 2012-03-30 2013-03-22 Dispositif permettant de filtrer une matière thermoplastique fondue

Country Status (7)

Country Link
US (1) US20150014238A1 (fr)
EP (1) EP2836283A1 (fr)
JP (1) JP6131491B2 (fr)
CN (1) CN104203364B (fr)
DE (1) DE102012006563B3 (fr)
IN (1) IN2014MN01831A (fr)
WO (1) WO2013152830A1 (fr)

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DE102014009768B4 (de) * 2014-07-01 2018-05-24 Maag Automatik Gmbh Vorrichtung zum Filtrieren einer Kunststoffschmelze
US20160001485A1 (en) * 2014-07-01 2016-01-07 Sino-Alloy Machinery Inc. Extruder filter replacement and backwash structure
DE102014016634A1 (de) 2014-11-11 2016-05-12 Maag Pump Systems Gmbh Filtriervorrichtung zum Filtrieren eines Fluids
JPWO2016167293A1 (ja) * 2015-04-15 2018-01-18 日本電気株式会社 アドホック網と移動通信網との端末間通信連携方法、端末間通信連携方法を実装する管理サーバ装置、および通信システム
EP3088158B1 (fr) * 2015-04-29 2020-03-18 Nordson PPS GmbH Dispositif de filtrage de fluides fortement visqueux
CN105080193A (zh) * 2015-07-21 2015-11-25 浙江绿宇环保有限公司 一种过滤系统
CN105437501A (zh) * 2015-12-22 2016-03-30 中山松德新材料装备有限公司 一种应用于挤出复合机的换网器
EP3308940A1 (fr) * 2016-10-17 2018-04-18 Next Generation Analytics GmbH Système de filtre pour les fluides visqueux ou fortement visqueux, surtout plastique fondu et procédé de filtration des liquides visqueux ou fortement visqueux
DE102017100032B3 (de) * 2017-01-02 2018-05-24 Gneuss Gmbh Siebrad-Filtriervorrichtung für mittel- bis hochviskose Fluide und Abdicht- und Montageverfahren dafür
KR101740343B1 (ko) 2017-03-30 2017-05-29 동민산업 협동조합 압출기의 수지 이물질 여과용 스크린 체인저
CN107471596B (zh) * 2017-08-18 2023-09-12 广东盈通新材料有限公司 多柱式不停机换网装置的换网方法
CN109333911B (zh) * 2018-11-21 2024-06-11 青岛科技大学 一种齿轮泵式橡胶连续注射装置
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CN104203364A (zh) 2014-12-10
US20150014238A1 (en) 2015-01-15
WO2013152830A1 (fr) 2013-10-17
CN104203364B (zh) 2017-09-05
DE102012006563B3 (de) 2013-05-16
JP2015518433A (ja) 2015-07-02
JP6131491B2 (ja) 2017-05-24
IN2014MN01831A (fr) 2015-07-03

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