DE19819916A1 - Filter material - Google Patents
Filter materialInfo
- Publication number
- DE19819916A1 DE19819916A1 DE1998119916 DE19819916A DE19819916A1 DE 19819916 A1 DE19819916 A1 DE 19819916A1 DE 1998119916 DE1998119916 DE 1998119916 DE 19819916 A DE19819916 A DE 19819916A DE 19819916 A1 DE19819916 A1 DE 19819916A1
- Authority
- DE
- Germany
- Prior art keywords
- stick coating
- filter material
- coating according
- stick
- filter
- 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- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1692—Other shaped material, e.g. perforated or porous sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/10—Filter screens essentially made of metal
- B01D39/12—Filter screens essentially made of metal of wire gauze; of knitted wire; of expanded metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2027—Metallic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0414—Surface modifiers, e.g. comprising ion exchange groups
- B01D2239/0428—Rendering the filter material hydrophobic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0471—Surface coating material
- B01D2239/0478—Surface coating material on a layer of the filter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1291—Other parameters
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Filtering Materials (AREA)
Abstract
Description
Die Erfindung bezieht sich auf die Veredelung von handelsüblichen Filtermaterialien durch Aufbringen einer Antihaftbeschichtung zum Zwecke der Verbesserung der Filtermaterialeigenschaften bei der Behandlung von Fluiden.The invention relates to the refinement of commercially available filter materials by application a non-stick coating for the purpose of improving the filter material properties in the Treatment of fluids.
Diese Beschichtung ist durch Tauchen des Filtermaterials in der Lackvorlage oder Aufspritzen des Beschichtungslackes auf das Filtermaterial und mit jeweils anschließender Wärmebehandlung oder durch Aufkaschieren einer porösen Folie hergestellt.This coating is achieved by dipping the filter material in the paint template or spraying it on Coating varnish on the filter material and with subsequent heat treatment or by Laminating a porous film.
Die derzeit am Markt angebotenen Filtermaterialien bestehen in der Hauptsache aus einem Werkstoff. Die Auswahl dieser Materialien geschieht in der Regel anhand der Randbedingungen der vorgesehenen Aufgabenstellung. Durch die schnelle Verblockung von unbehandelten Filtermaterialien mit den abzutrennenden Stoffen können eine Vielzahl von Aufgabenstellungen nicht oder nur ungenügend gelöst werden. Dabei müssen häufig hinsichtlich der Werkstoffeigenschaften für die geplante Anwendung Kompromisse gefunden werden.The filter materials currently available on the market mainly consist of one material. The These materials are usually selected on the basis of the boundary conditions provided Task. Due to the rapid blocking of untreated filter materials with the Substances to be separated cannot solve a large number of tasks or only insufficiently become. It is often necessary to consider the material properties for the planned application Compromises can be found.
Neben den unbeschichteten Filtermaterialien sind auch beschichtete Filtermaterialien erhältlich, die jedoch aus Metall bestehen, das nachträglich auf galvanischem Weg wieder mit Metall beschichtet sind. Hier ist das Hauptziel die nachträgliche Verringerung der Porengröße. Die Nachteile von Metallen bei der Behandlung von Fluiden bleiben durch diese Beschichtung wegen der guten Benetzbarkeit unberührt.In addition to the uncoated filter materials, coated filter materials are also available, however consist of metal, which are subsequently galvanically coated with metal. Here is the main goal is the subsequent reduction of the pore size. The disadvantages of metals in the Treatment of fluids remains unaffected by this coating because of its good wettability.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, insbesondere für die Reinigung von stark verunreinigten Fluiden Filtermaterialien mit einer Antihaftbeschichtung einzusetzen.The present invention has for its object, in particular for the cleaning of strong contaminated fluids use filter materials with a non-stick coating.
Die Antihaftbeschichtung hat zur Aufgabe, durch die hydrophobe Eigenschaft speziell bei wäßrigen Lösungen das Anhaften von Verunreinigungen auf der Filtermaterialoberfläche zu verhindern bzw. zu reduzieren. Dadurch können bei diesen antihaftbeschichteten Filtern längere Standzeiten erzielt werden und gleichzeitig ist die Reinigung mit vergleichsweise geringerem Aufwand möglich.The task of the non-stick coating is due to the hydrophobic property, especially in the case of aqueous ones Solutions to prevent or adhere the contamination to the filter material surface to reduce. As a result, longer service lives can be achieved with these non-stick coated filters at the same time, cleaning is possible with comparatively less effort.
Um diese Antihafteigenschaft zu erreichen ist es in der Regel ausreichend, die Filtermaterialoberfläche, die der Rohfluidseite zugewandt ist, mit einem hydrophob wirkendem Werkstoff, z. B. PTFE, zu beschichten. Dabei soll der Beschichtungswerkstoff die Eigenschaften des Filtermaterials mindestens für den vorgesehenen Anwendungsbereich erhalten (also auch die Porosität) und gegebenenfalls gezielt eine Verbesserung bestimmter Eigenschaften erreichen. In der Hauptsache sind für die Antihaftbeschichtung metallische Filtermaterialien, wie Drahtgewebe, Sintermetalle, Spaltrohre, Lochbleche, etc., verwendet. In order to achieve this non-stick property, it is usually sufficient to use the filter material surface the raw fluid side is facing, with a hydrophobic material, e.g. B. PTFE to coat. The coating material should have at least the properties of the filter material receive the intended area of application (including the porosity) and, if necessary, selectively Achieve improvement of certain properties. The main thing is for the non-stick coating metallic filter materials, such as wire mesh, sintered metals, can, perforated sheets, etc., are used.
Neben diesen gewünschten Antihafteigenschaften ist diese Beschichtung von Filtermaterialien gezielt zur Verringerung der Porengröße eingesetzt.In addition to these desired non-stick properties, this coating of filter materials is specifically designed for Pore size reduction used.
Die antihaftbeschichteten Filtermaterialien und Filterelemente können als Deadend- oder Querstromfilter eingesetzt werden.The non-stick coated filter materials and filter elements can be used as dead-end or crossflow filters be used.
Die antihaftbeschichteten Filtermaterialien und Filterkerzen sind sowohl für den Einsatz bei selbstreinigenden Automatikfiltersystemen als auch bei manuell zu reinigenden Kerzenfiltern verwendet Insbesondere beim Abtrennen von Biomasse aus wäßrigen Lösungen ist die Antihaftbeschichtung für den Filtrationsprozeß von Vorteil.The non-stick coated filter materials and filter candles are both for use with self-cleaning automatic filter systems as well as for manually cleaned candle filters Especially when separating biomass from aqueous solutions, the non-stick coating is for the Filtration process is an advantage.
Claims (13)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1998119916 DE19819916A1 (en) | 1998-05-05 | 1998-05-05 | Filter material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1998119916 DE19819916A1 (en) | 1998-05-05 | 1998-05-05 | Filter material |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19819916A1 true DE19819916A1 (en) | 1999-01-07 |
Family
ID=7866658
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1998119916 Withdrawn DE19819916A1 (en) | 1998-05-05 | 1998-05-05 | Filter material |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19819916A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007042399A1 (en) * | 2007-09-06 | 2009-03-12 | Robert Bosch Gmbh | charger |
DE202012103694U1 (en) | 2012-09-26 | 2014-01-07 | Heimbach Gmbh & Co. Kg | filter belt |
-
1998
- 1998-05-05 DE DE1998119916 patent/DE19819916A1/en not_active Withdrawn
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007042399A1 (en) * | 2007-09-06 | 2009-03-12 | Robert Bosch Gmbh | charger |
DE102007042399B4 (en) * | 2007-09-06 | 2021-02-04 | Robert Bosch Gmbh | charger |
DE202012103694U1 (en) | 2012-09-26 | 2014-01-07 | Heimbach Gmbh & Co. Kg | filter belt |
EP2712666A2 (en) | 2012-09-26 | 2014-04-02 | Heimbach GmbH & Co. KG | Filter strip |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OAV | Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1 | ||
OP8 | Request for examination as to paragraph 44 patent law | ||
8122 | Nonbinding interest in granting licenses declared | ||
8130 | Withdrawal |