SE511585C2 - Process for impregnating a porous filter material with liquid and a filter made by the process - Google Patents

Process for impregnating a porous filter material with liquid and a filter made by the process

Info

Publication number
SE511585C2
SE511585C2 SE9800521A SE9800521A SE511585C2 SE 511585 C2 SE511585 C2 SE 511585C2 SE 9800521 A SE9800521 A SE 9800521A SE 9800521 A SE9800521 A SE 9800521A SE 511585 C2 SE511585 C2 SE 511585C2
Authority
SE
Sweden
Prior art keywords
chamber
filter
filter material
pressure
impregnating
Prior art date
Application number
SE9800521A
Other languages
Swedish (sv)
Other versions
SE9800521D0 (en
SE9800521L (en
Inventor
Olle Sydlen
Original Assignee
Olle Sydlen
Oenell Tomas
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 Olle Sydlen, Oenell Tomas filed Critical Olle Sydlen
Priority to SE9800521A priority Critical patent/SE511585C2/en
Publication of SE9800521D0 publication Critical patent/SE9800521D0/en
Priority to EP99934254A priority patent/EP1064074A1/en
Priority to PCT/SE1999/000211 priority patent/WO1999042196A1/en
Priority to AU32827/99A priority patent/AU3282799A/en
Publication of SE9800521L publication Critical patent/SE9800521L/en
Publication of SE511585C2 publication Critical patent/SE511585C2/en
Priority to NO20004185A priority patent/NO313181B1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0001—Making filtering elements
    • 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
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2275/00—Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/10—Multiple layers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)

Abstract

The invention related to a method for impregnating a porous filter material with fluid and a filter manufactured according to the method. According to the principles of the method according to the invention, the filter material is placed in a chamber essentially sealed against the atmosphere, the material is heated to a predetermined temperature, the impregnation solution in the form of a dispersed fluid is sprayed into the chamber, and the pressure in the chamber is raised to a predetermined level, whereby said parameters regarding temperature and pressure are maintained in the chamber for a predetermined interval of time that is chosen to allow the impregnation solution to diffuse completely into and fill the filter material. In this way, a good impregnation of fluid in the filter material is obtained in a very simple manner, and the filtering effect of said filter is also good.

Description

15 20 25 30 511 585 2 Filter-materialet 1 förs för behandling in i en kammare 2 som försluts på ett gastätande sätt mot den i kammaren omgivande atmosfären. Filtermaterialet 1 uppvärms genom inverkan av i kammaren anordnade konvektionselement (ej visade i figuren) eller genom däri verksamma mikrovâgor alstrade av något på lämpligt sätt till utrymmet arrangerat oscillatoraggregat. Genom ett eller företrädesvis flera till kammaren anslutna och mynnande tilloppsrör 3 sprayas impregneringsvätska 4 in i kammaren varjärnte trycket i kammaren höjs till en på förhand bestämd nivå. Då bestämda värden på temperatur och tryck uppnåtts i kammaren kvarhålls dessa under ett bestämt tidsintervall så att behandlingsvätskan ges möjlighet att från olika riktningar diffundera in och fullständigt upptas i filterrnaterialet 1. 15 20 25 30 511 585 2 The filter material 1 is introduced for treatment into a chamber 2 which is sealed in a gas-tight manner against the atmosphere surrounding the chamber. The filter material 1 is heated by the action of convection elements arranged in the chamber (not shown in the) clock) or by microwaves acting therein generated by an oscillator unit arranged in a suitable manner to the space. Through one or preferably several inlet pipes and connected to the chamber 3, impregnating liquid 4 is sprayed into the chamber and the pressure in the chamber is raised to a predetermined level. When certain values of temperature and pressure have been reached in the chamber, these are retained for a certain time interval so that the treatment liquid is given the opportunity to diffuse in from different directions and is completely absorbed in the ateriallter material 1.

Valet av parametrar beträffande tryck, temperatur och behandlingstid i kammaren avgörs i första hand i beroende. av den valda impregneringsvätskans viskositet sarnt filtrets dimensioner och täthet och således i förhållande till den tid som erfordras för att vätskan fullständigt skall diffundera in i den porösa filtermassan. Det bör också inses att det för tillverkningshastigheten är föredraget att den vätskedispersion som sprayas in i kammaren har en förhöjd temperatur innan den sprayas in i kammaren.The choice of parameters regarding pressure, temperature and treatment time in the chamber is primarily determined in dependence. of the viscosity of the selected impregnating liquid, especially the dimensions and density of the filter and thus in relation to the time required for the liquid to completely diffuse into the porous filter mass. It should also be appreciated that for the rate of manufacture, it is preferred that the liquid dispersion sprayed into the chamber have an elevated temperature before it is sprayed into the chamber.

Metoden enligt ovan kan utövas för olika filtermaterial och impregneringsvätskor, sarnt för olika nivåer på temperatur, tryck och olika behandlingstider. Som exempel på filtermaterial har med utnyttjats material som är kommersiellt tillgängliga under vmbeteckningama ”FILTREN rzø, FILTREN TV5, BULPREN S90” från formge: RESTICELL INTERNATIONAL. Sarnmansättningen av filterrnaterialet utgörs företrädesvis av ett 3-skikts material monterat i en ram eller liknande konstruktion där filtren genom exempelvis limning är sammanfogade vid kantema och i nämnda ram uppstyvade av något nätforrnigt element av något förhållandevis styvt material såsom hårt plastmaterial eller metall. Impregneringsvätskoma kan exempelvis utgöras av vegetabiliska oljor såsom rapsolja, samt polymerer eller andra kända oljor. Beroende på filtrens applikationsområde och de filtreringskrav som ställs på det bildade filteraggregatet är användningen av fler skikt än ovan nämnda tre skikt också tänkbara, exempelvis 6-skikts material etc.The method as above can be practiced for different filter materials and impregnation liquids, especially for different levels of temperature, pressure and different treatment times. As an example of filter material, materials that are commercially available under the designations “FILTREN rzø, FILTREN TV5, BULPREN S90” from design: RESTICELL INTERNATIONAL have been used. The assembly of the filter material preferably consists of a 3-layer material mounted in a frame or similar construction where the filters are joined at the edges by, for example, gluing and in said frame stiffened by some net-shaped element of some relatively rigid material such as hard plastic material or metal. The impregnation liquids may, for example, consist of vegetable oils such as rapeseed oil, as well as polymers or other known oils. Depending on the application area of the filters and the filtration requirements imposed on the formed filter unit, the use of layers other than the above-mentioned three layers is also conceivable, for example 6-layer materials, etc.

Typiska uppvärmningstemperaturer ligger nonnalt i intervallet från ca 75 °C till ca 155 °C och trycket kan normalt variera från ca 20 MPa till 45 MPa, medan lämpliga behandlingstider uppgår till ca 25 till 90 sekunder.Typical heating temperatures normally range from about 75 ° C to about 155 ° C and the pressure can normally range from about 20 MPa to 45 MPa, while suitable treatment times are about 25 to 90 seconds.

Enligt ett utföringsexempel har en mycket god filtrerande effekt erhållits av en filterrnassa från nämnda tillverkare som behandlats vid 75 °C och vid ett tryck av 20 MPa under upprätthållande av dessa parametrar under en tid av 25 sekunder.According to an exemplary embodiment, a very good filtering effect has been obtained by an filter mass from said manufacturer which has been treated at 75 ° C and at a pressure of 20 MPa while maintaining these parameters for a period of 25 seconds.

C:\User\Leg\Dok\p33533se00.doc 3 511 585 Det bör inses att uppfinningen inte är begränsad till det ovanstående utan kan ändras och modifieras på en rad olika sätt inom ramen för den i efterföljande patentkrav angivna uppfinningstanken.C: \ User \ Leg \ Dok \ p33533en00.doc 3 511 585 It should be understood that the invention is not limited to the above but can be changed and modified in a number of different ways within the scope of the invention concept set forth in the appended claims.

Cz\User\Leg\Dok\p33533sc00.docCz \ User \ Leg \ Doc \ p33533sc00.doc

Claims (9)

10 15 20 25 511 585 4 PATENTKRAV10 15 20 25 511 585 4 PATENT REQUIREMENTS 1. Förfarande för impregnering av ett poröst filtermaterial med vätska, k ä n n e - t e c k n a t av att filtermaterialet placeras i en kammare som väsentligen avtätas mot atmosfären, att materialet uppvärrns till en på förhand bestämd temperatur, att impregneringsmedel i form av en vätskedispersion sprayas in i kammaren, och att trycket i kammaren förhöjs till en på förhand bestämd nivå, varvid nämnda parametrar beträffande temperatur, och tryck upprätthålles i kammaren under ett på förhand bestämt tidsintervall som är så valt att impregneringsmedlet fullständigt diffunderar in och fyller filtrermaterialet.Process for impregnating a porous filter material with liquid, characterized in that the filter material is placed in a chamber which is substantially sealed against the atmosphere, that the material is heated to a predetermined temperature, that impregnating agent in the form of a liquid dispersion is sprayed into the chamber, and that the pressure in the chamber is raised to a predetermined level, said parameters regarding temperature and pressure being maintained in the chamber for a predetermined time interval selected so that the impregnating agent completely diffuses in and fills the filter material. 2. Förfarande enligt krav 2, k ä n n e t e c k n at av att filtermaterialet värms upp till en temperatur på mellan 75 °C till 155 °C, och att trycket i kammaren ökas till mellan 20 MPa till 45 MPa och att temperaturen och trycket upprätthålls i ett tidsintervall på mellan 25 till 90 sekunder.2. A method according to claim 2, characterized in that the filter material is heated to a temperature of between 75 ° C to 155 ° C, and that the pressure in the chamber is increased to between 20 MPa to 45 MPa and that the temperature and pressure are maintained in a time intervals of between 25 to 90 seconds. 3. Förfarande enligt krav 2 eller 3, k ä n n e t e c k n a t av att temperaturen i kammaren är 75 °C, trycket är 20 MPa och uppehållstiden är 25 sekunder.3. A method according to claim 2 or 3, characterized in that the temperature in the chamber is 75 ° C, the pressure is 20 MPa and the residence time is 25 seconds. 4. Förfarande enligt något av föregående krav, k ä n n e t e c k n a t av att filterrnaterialet utgörs av ett trådliknande poröst skummaterial.Method according to one of the preceding claims, characterized in that the ateriallter material consists of a wire-like porous foam material. 5. Förfarande enligt något av föregående krav, k ä n n e t e c k n a t av att impregneringsvätskan utgörs av någon vegetabilisk olja.A method according to any one of the preceding claims, characterized in that the impregnating liquid consists of some vegetable oil. 6. Förfarande enligt krav l till 4, k ä n n e t e c k n a t av att impregneringsvätskan utgörs av någon syntetisk olja.6. A method according to claims 1 to 4, characterized in that the impregnating liquid consists of some synthetic oil. 7. Förfarande enligt något av föregående krav, k ä n n e t e c k n a t av att för uppvärrnningen av filtermaterialet i kammaren används mikrovågor.Method according to one of the preceding claims, characterized in that microwaves are used for heating the filter material in the chamber. 8. Filter av ett trådliknande poröst material framställt enligt förfarandet i något av de ovanstående patentkraven.Filter of a wire-like porous material prepared according to the method of any one of the preceding claims. 9. Filter enligt krav 8, k ä n n e t e c k n at av att det utgörs av tre skikt monterade efter varandra i en ram. C;\User\Lcg\Dok\p33533sc00.doc9. A filter according to claim 8, characterized in that it consists of three layers mounted one after the other in a frame. C; \ User \ Lcg \ Doc \ p33533sc00.doc
SE9800521A 1998-02-23 1998-02-23 Process for impregnating a porous filter material with liquid and a filter made by the process SE511585C2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE9800521A SE511585C2 (en) 1998-02-23 1998-02-23 Process for impregnating a porous filter material with liquid and a filter made by the process
EP99934254A EP1064074A1 (en) 1998-02-23 1999-02-17 Method for impregnating a porous filter material with a fluid and a filter manufactured by the method
PCT/SE1999/000211 WO1999042196A1 (en) 1998-02-23 1999-02-17 Method for impregnating a porous filter material with a fluid and a filter manufactured by the method
AU32827/99A AU3282799A (en) 1998-02-23 1999-02-17 Method for impregnating a porous filter material with a fluid and a filter manufactured by the method
NO20004185A NO313181B1 (en) 1998-02-23 2000-08-22 A method of impregnating a porous filter material with a fluid and a filter made by the method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9800521A SE511585C2 (en) 1998-02-23 1998-02-23 Process for impregnating a porous filter material with liquid and a filter made by the process

Publications (3)

Publication Number Publication Date
SE9800521D0 SE9800521D0 (en) 1998-02-23
SE9800521L SE9800521L (en) 1999-08-24
SE511585C2 true SE511585C2 (en) 1999-10-25

Family

ID=20410256

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9800521A SE511585C2 (en) 1998-02-23 1998-02-23 Process for impregnating a porous filter material with liquid and a filter made by the process

Country Status (5)

Country Link
EP (1) EP1064074A1 (en)
AU (1) AU3282799A (en)
NO (1) NO313181B1 (en)
SE (1) SE511585C2 (en)
WO (1) WO1999042196A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2382315A (en) * 2001-11-21 2003-05-28 Purification Products Ltd Filtration materials and methods for the production and use thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2961710A (en) * 1957-01-04 1960-11-29 Norman H Stark Method for making a foamed polyurethane filter
US4631077A (en) * 1985-03-26 1986-12-23 Pipercrosslimited Foam plastic air filter
IN163767B (en) * 1985-05-29 1988-11-05 Pipercross Ltd
US5437701A (en) * 1993-08-05 1995-08-01 S.T. Technologies, Inc. Air filter and method of construction

Also Published As

Publication number Publication date
AU3282799A (en) 1999-09-06
NO313181B1 (en) 2002-08-26
SE9800521D0 (en) 1998-02-23
EP1064074A1 (en) 2001-01-03
SE9800521L (en) 1999-08-24
NO20004185D0 (en) 2000-08-22
NO20004185L (en) 2000-08-22
WO1999042196A1 (en) 1999-08-26

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