DE19711230B4 - Flat filter material with adsorptive properties - Google Patents

Flat filter material with adsorptive properties Download PDF

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Publication number
DE19711230B4
DE19711230B4 DE1997111230 DE19711230A DE19711230B4 DE 19711230 B4 DE19711230 B4 DE 19711230B4 DE 1997111230 DE1997111230 DE 1997111230 DE 19711230 A DE19711230 A DE 19711230A DE 19711230 B4 DE19711230 B4 DE 19711230B4
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Germany
Prior art keywords
filter material
folding
weak points
filter
material according
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Expired - Fee Related
Application number
DE1997111230
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German (de)
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DE19711230A1 (en
Inventor
Dr. Ruiter Ernest de
Jonas Törnblom
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Bluecher GmbH
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Bluecher GmbH
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Publication date
Priority claimed from DE19617755A external-priority patent/DE19617755B4/en
Application filed by Bluecher GmbH filed Critical Bluecher GmbH
Priority to DE1997111230 priority Critical patent/DE19711230B4/en
Priority to JP53951697A priority patent/JP2000509327A/en
Priority to DE59705776T priority patent/DE59705776D1/en
Priority to AU28900/97A priority patent/AU2890097A/en
Priority to PCT/EP1997/002243 priority patent/WO1997041941A1/en
Priority to EP19970922936 priority patent/EP0901404B1/en
Priority to US09/180,145 priority patent/US6227383B1/en
Publication of DE19711230A1 publication Critical patent/DE19711230A1/en
Publication of DE19711230B4 publication Critical patent/DE19711230B4/en
Application granted granted Critical
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Expired - Fee Related legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28033—Membrane, sheet, cloth, pad, lamellar or mat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28026—Particles within, immobilised, dispersed, entrapped in or on a matrix, e.g. a resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin

Abstract

Flächiges Filtermaterial nach DE 196 17 755.3 mit adsorptiven Eigenschaften, bestehend aus einer mit einer Schmelzkleberschicht ein- oder beidseitig beschichteten Trägerbahn, an der körnige Adsorbentien einseitig oder beidseitig haften, dadurch gekennzeichnet, daß das Filtermaterial plissierbar ausgebildet ist, wobei im Abstand der gewünschten Faltung quer zur Längsrichtung Schwachstellen eingeführt sind, die das Zusammenschieben der Filterbahn zu einer Zick-Zack-Form erlauben.Flat filter material according to DE 196 17 755.3 with adsorptive properties, consisting of a carrier web coated on one or both sides with a hot-melt adhesive layer, to which granular adsorbents adhere on one or both sides, characterized in that the filter material is designed to be pleatable, with the desired folding across Weaknesses are introduced to the longitudinal direction, which allow the filter web to be pushed together in a zigzag shape.

Description

Die vorliegende Erfindung betrifft ein flächiges Filtermaterial in Weiterentwicklung zur DE 196 17 755.3 nach dem Oberbegriff von Anspruch 1.The present invention relates to a flat filter material in further development of DE 196 17 755.3 according to the preamble of claim 1.

Die DE 196 17 755.3 beschreibt ein flächiges Material mit adsorbierenden Eigenschaften, welches aus einer mit einem Polyolefin ein- bzw. beidseitig beschichteten Alufolie besteht, deren durch Erhitzen klebrig gemachte Beschichtung als Haftmasse für körnige Adsorbentien dient. Die Zusatzanmeldung DE 196 45 194.9 beschreibt ein ähnliches Material, bei dem jedoch die Alufolie durch ein preiswerteres Papier ersetzt ist. Eine weitere Zusatzanmeldung, die DE 196 45 195.7 beschreibt Materialien auf der Basis von Alufolie oder Papier, bei denen die körnigen Adsorbentien durch textile Flächengebilde aus Aktivkohle ersetzt sind. Schließlich beschreibt die Zusatzanmeldung DE 197 01 658.8 einige Anwendungsmöglichkeiten der beschriebenen Materialien, die zum Teil eine Zick-Zack-Prägung aufweisen.The DE 196 17 755.3 describes a sheet material with adsorbing properties, which consists of a one or both sides coated with a polyolefin aluminum foil, which made by heating tackified coating serves as an adhesive mass for granular adsorbents. The additional application DE 196 45 194.9 describes a similar material, but in which the aluminum foil is replaced by a cheaper paper. Another additional application, the DE 196 45 195.7 describes materials based on aluminum foil or paper in which the granular adsorbents are replaced by activated carbon textile fabrics. Finally, the additional application describes DE 197 01 658.8 some applications of the described materials, some of which have a zig-zag embossing.

Weiterhin betrifft die deutsche Patentanmeldung DE 195 00 574 A1 ein Adsorptionsfilter, bei welchem Adsorbentien an den Wänden einer Trägerstruktur, die aus parallel ausgerichteten Kanälen besteht, angeordnet sind und die Kanäle in Längsrichtung durchströmt werden.Furthermore, the German patent application DE 195 00 574 A1 an adsorption filter in which adsorbents are arranged on the walls of a support structure, which consists of parallel aligned channels, and the channels are flowed through in the longitudinal direction.

Die DE 41 26 126 C2 betrifft ein Verfahren zur Herstellung eines Filterkörpers aus einer relativ dünnwandigen, zwischen Faltenkanten zickzackförmig gefalteten Bahn aus Filtermaterial, das sowohl auf der Anströmseite als auch auf der Abströmseite zwischen den Faltenkanten jeweils aus der Bahnebene herausragende längliche, in der Filterebene jeweils nebeneinanderliegende Sicken zum gegenseitigen Abstandhalten der Falten aufweist. Die Sicken weisen auf Höhe der Faltenkante unverformte ebene Abschnitte auf, wodurch sich beim Falten des Filtermaterials Abplattungen ergeben, welche einen Abstandhalter bilden.The DE 41 26 126 C2 relates to a method for producing a filter body from a relatively thin-walled, folded between fold edges zigzag web of filter material, both on the upstream side and on the outflow side between the fold edges respectively from the web plane outstanding elongated in the filter plane respectively adjacent beads for mutual distance holding the Has wrinkles. The beads have at the level of the fold edge undeformed flat portions, resulting in the folding of the filter material flattening, which form a spacer.

Die DE 41 19 661 C2 betrifft ein Filtermaterial, bestehend aus einer mit Adsorbentien beladenen Schaumbahn aus grobporigem retikuliertem PU-Schaum, wobei abwechselnd auf beiden Seiten der Schaumbahn im Abstand von vorgesehenen Knickstellen V-förmige oder doppel-V-förmige Aussparungen angebracht sind.The DE 41 19 661 C2 relates to a filter material consisting of a laden with adsorbent foam web of grobporigem reticulated PU foam, wherein alternately on both sides of the foam web at a distance from intended kinks V-shaped or double-V-shaped recesses are mounted.

Das europäische Patent EP 0 118 618 B1 beschreibt ein Flächenfilter aus einem luftdurchlässigen textilen Trägermaterial und darauf mittels eines Klebers in gleichmäßiger Verteilung fixierten Aktivkohleteilchen, wobei der Kleber mittels einer Schablone derart auf das Trägermaterial aufgedruckt ist derart, daß nur 30 bis 70% der Oberfläche des Trägermaterials bedeckt sind.The European patent EP 0 118 618 B1 describes a surface filter made of an air-permeable textile support material and thereon by means of an adhesive in uniform distribution fixed activated carbon particles, wherein the adhesive is printed by means of a template on the substrate such that only 30 to 70% of the surface of the substrate are covered.

Darüber hinaus betrifft die DE 32 11 322 A1 schließlich ein Flächenfilter aus einer luftdurchlässigen flexiblen Trägerschicht und einem darauf fixierten Adsorbens, wobei ein ein pulverförmiges Adsorbens und ein polymeres Bindemittel enthaltendes Gemisch in einem bestimmten Muster aufgedruckt ist, das bis zu 90% der Oberfläche der Trägerschicht bedeckt.In addition, the concerns DE 32 11 322 A1 Finally, a surface filter of an air-permeable flexible support layer and an adsorbent fixed thereto, wherein a mixture containing a powdered adsorbent and a polymeric binder is printed in a certain pattern covering up to 90% of the surface of the support layer.

Es wurde nun ein flächiges Filtermaterial in Weiterentwicklung zur DE 196 17 755.3 gefunden, das eine besonders wirtschaftliche Herstellung der Zick-Zack-Faltung erlaubt. Es sei nochmals daran erinnert, daß es Ziel der Zick-Zack-Form ist, Filterblöcke herzustellen, die einem Autokühler ähnlich sind, also Kanäle besitzen, die parallel zur Strömungsrichtung durchströmt werden, und deren Wände mit Adsorbentien belegt sind. Durch die Molekularbewegung (Querdiffusion) und Turbulenzen kommt es zu dem für die Adsorption benötigten Kontakt mit den Adsorbentien.It was now a flat filter material in development for DE 196 17 755.3 found that allows a particularly economical production of zig-zag folding. It should be recalled that the aim of the zig-zag shape is to produce filter blocks similar to a car radiator, that is, having channels that are traversed parallel to the flow direction and whose walls are covered with adsorbents. Due to the molecular movement (transverse diffusion) and turbulence, it comes to the required for the adsorption contact with the adsorbents.

Gegenstand der vorliegenden Erfindung ist somit ein flächiges Filtermaterial nach Anspruch 1; weitere, vorteilhafte Ausgestaltungen sind Gegenstand der Unteransprüche.The present invention thus relates to a flat filter material according to claim 1; Further, advantageous embodiments are the subject of the dependent claims.

Eine einfache Arbeitsweise zur gleichzeitig beidseitigen Beladung des erfindungsgemäßen Filtermaterials mit Adsorbentien besteht darin, einen beschichteten Alu- bzw. Papierstreifen durch ein heißes Bett von körnigen Adsorbentien zu ziehen. Mit einer Kugelkohle eines mittleren Durchmessers von ca. 0,5 mm können problemlos Auflagen von über 500 g/m2 erzielt werden. Um beladene Streifen mit Zick-Zack- oder Wellenform zu erhalten werden diese zuerst geprägt (z. B. mit Zahnrädern) und danach mit Adsorbentien beladen. Beim Beladen (Ziehen durch ein Bett aus heißen Adsorbentien) wird insbesondere beim Papier ein Teil der Zick-Zack-Form wieder herausgezogen. Andererseits ist eine Prägung nach der Beladung kaum mehr möglich, ohne die Adsorbentien zu beschädigen. Es wurden deshalb weitere Wege gesucht, um die angestrebte Zick-Zack-Form zu realisieren. Die erfindungsgemäße Lösung besteht darin, daß in bestimmten Abständen in den zu beladenen Streifen bzw. Warenbahn quer zur Längsrichtung Schwachstellen eingeführt werden, die zum Zweck haben, daß sich das Material an diesen Stellen besonders leicht falten läßt. Es gibt dafür viele Möglichkeiten, wovon drei hier aufgezeigt werden sollen, ohne daß dies als Einschränkung zu werten ist.A simple procedure for simultaneous two-sided loading of the filter material according to the invention with adsorbents is to pull a coated strip of aluminum or paper through a hot bed of granular adsorbents. With a spherical carbon with a mean diameter of approx. 0.5 mm, runs of more than 500 g / m 2 can be easily achieved. To obtain loaded strips with a zigzag or wave shape, they are first embossed (eg with gears) and then loaded with adsorbents. During loading (pulling through a bed of hot adsorbents), part of the zig-zag shape is pulled out again, in particular with the paper. On the other hand, embossing after loading is hardly possible without damaging the adsorbents. Therefore, further ways were sought to realize the desired zig-zag shape. The solution according to the invention is that at certain intervals in the strip or web to be loaded transversely to the longitudinal direction weak points are introduced, which have the purpose that the material can be particularly easy to fold at these locations. There are many possibilities, of which three are to be shown here, without this being a limitation.

Eine erste Möglichkeit zeigt : Durch zwei warme Messer wird die Beschichtung zur Seite gedrückt und das Papier bzw. Alufolie zusammengequetscht.A first way shows : The coating is pushed aside by two warm knives and the paper or aluminum foil is squeezed together.

Eine weitere Möglichkeit ist, etwa bis zur Hälfte der Dicke wechselseitig Einschnitte vorzunehmen ( ).Another possibility is to make incisions approximately halfway through the thickness ( ).

Schließlich kann eine Perforation vorgenommen werden ( ).Finally, a perforation can be made ( ).

Das Trägermaterial wird im flachen Zustand beladen und danach in die Zick-Zack-Form zusammengeschoben ( ).The carrier material is loaded in the flat state and then pushed together in the zig-zag shape ( ).

Claims (4)

Flächiges Filtermaterial nach DE 196 17 755.3 mit adsorptiven Eigenschaften, bestehend aus einer mit einer Schmelzkleberschicht ein- oder beidseitig beschichteten Trägerbahn, an der körnige Adsorbentien einseitig oder beidseitig haften, dadurch gekennzeichnet, daß das Filtermaterial plissierbar ausgebildet ist, wobei im Abstand der gewünschten Faltung quer zur Längsrichtung Schwachstellen eingeführt sind, die das Zusammenschieben der Filterbahn zu einer Zick-Zack-Form erlauben.Flat filter material after DE 196 17 755.3 with adsorptive properties, consisting of a one or both sides coated with a melt adhesive layer carrier web adhere to the granular adsorbents on one or both sides, characterized in that the filter material is formed pleatable, wherein at a distance of the desired folding transverse to the longitudinal direction weak points are introduced, the allow the filter web to slide together to a zig-zag shape. Filtermaterial nach Anspruch 1, dadurch gekennzeichnet, daß die zur Faltung benötigten Schwachstellen durch Zusammenquetschen gebildet sind.Filter material according to claim 1, characterized in that the weak points required for folding are formed by squeezing. Filtermaterial nach Anspruch 1, dadurch gekennzeichnet, daß die zur Faltung benötigten Schwachstellen durch wechselseitig angebrachte Einschnitte gebildet sind.Filter material according to claim 1, characterized in that the weak points required for the folding are formed by mutually attached incisions. Filtermaterial nach Anspruch 1, dadurch gekennzeichnet, daß die zur Faltung benötigten Schwachstellen durch eine lineare Perforierung gebildet sind.Filter material according to claim 1, characterized in that the weak points required for the folding are formed by a linear perforation.
DE1997111230 1996-05-03 1997-03-18 Flat filter material with adsorptive properties Expired - Fee Related DE19711230B4 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE1997111230 DE19711230B4 (en) 1996-05-03 1997-03-18 Flat filter material with adsorptive properties
PCT/EP1997/002243 WO1997041941A1 (en) 1996-05-03 1997-05-02 Filtering material and process for the production thereof, and adsorption filter produced from said filtering material
DE59705776T DE59705776D1 (en) 1996-05-03 1997-05-02 FILTER MATERIAL AND METHOD FOR THE PRODUCTION THEREOF AND ADSORPTION FILTER MANUFACTURED FROM THIS FILTER MATERIAL
AU28900/97A AU2890097A (en) 1996-05-03 1997-05-02 Filtering material and process for the production thereof, and adsorption filter produced from said filtering material
JP53951697A JP2000509327A (en) 1996-05-03 1997-05-02 Filter material, method for producing filter material, and adsorption filter manufactured from the filter material
EP19970922936 EP0901404B1 (en) 1996-05-03 1997-05-02 Filtering material and process for the production thereof, and adsorption filter produced from said filtering material
US09/180,145 US6227383B1 (en) 1996-05-03 1997-05-02 Filtering material and process for the production thereof, and adsorption filter produced from said filtering material

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19617755A DE19617755B4 (en) 1996-05-03 1996-05-03 Adsorption material and filter block built from it
DE1997111230 DE19711230B4 (en) 1996-05-03 1997-03-18 Flat filter material with adsorptive properties

Publications (2)

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DE19711230A1 DE19711230A1 (en) 1998-09-24
DE19711230B4 true DE19711230B4 (en) 2011-09-15

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3211322A1 (en) * 1982-03-27 1983-09-29 Hasso von 4000 Düsseldorf Blücher AREA FILTER AND METHOD FOR THE PRODUCTION THEREOF
EP0118618B1 (en) * 1983-02-09 1986-11-05 Hubert von Blücher Flat sheet-like filter
DE4119661C2 (en) * 1991-06-14 1994-03-24 Hasso Von Bluecher Filter material and filter made with it
DE19500574A1 (en) * 1995-01-11 1996-07-18 Hasso Von Bluecher Adsorption filter with a high permeability esp. for air purification
DE4126126C2 (en) * 1991-08-07 1998-02-12 Mann & Hummel Filter Filter manufacturing process

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3211322A1 (en) * 1982-03-27 1983-09-29 Hasso von 4000 Düsseldorf Blücher AREA FILTER AND METHOD FOR THE PRODUCTION THEREOF
EP0118618B1 (en) * 1983-02-09 1986-11-05 Hubert von Blücher Flat sheet-like filter
DE4119661C2 (en) * 1991-06-14 1994-03-24 Hasso Von Bluecher Filter material and filter made with it
DE4126126C2 (en) * 1991-08-07 1998-02-12 Mann & Hummel Filter Filter manufacturing process
DE19500574A1 (en) * 1995-01-11 1996-07-18 Hasso Von Bluecher Adsorption filter with a high permeability esp. for air purification

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DE19711230A1 (en) 1998-09-24

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