SE455380B - Vevt filtermedia for slamavvattning - Google Patents

Vevt filtermedia for slamavvattning

Info

Publication number
SE455380B
SE455380B SE8605361A SE8605361A SE455380B SE 455380 B SE455380 B SE 455380B SE 8605361 A SE8605361 A SE 8605361A SE 8605361 A SE8605361 A SE 8605361A SE 455380 B SE455380 B SE 455380B
Authority
SE
Sweden
Prior art keywords
filter media
threads
longitudinal
transverse
sectional shape
Prior art date
Application number
SE8605361A
Other languages
English (en)
Other versions
SE8605361D0 (sv
Inventor
R Almhem
Original Assignee
Scandiafelt Ab
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=20366622&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SE455380(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Scandiafelt Ab filed Critical Scandiafelt Ab
Priority to SE8605361A priority Critical patent/SE455380B/sv
Publication of SE8605361D0 publication Critical patent/SE8605361D0/sv
Priority to DE3785841T priority patent/DE3785841T3/de
Priority to EP87850385A priority patent/EP0273892B2/en
Publication of SE455380B publication Critical patent/SE455380B/sv

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
    • B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
    • B01D39/083—Filter cloth, i.e. woven, knitted or interlaced material of organic material
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/30—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the fibres or filaments
    • D03D15/37—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the fibres or filaments with specific cross-section or surface shape
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
    • D03D15/44—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads with specific cross-section or surface shape
    • D03D15/46—Flat yarns, e.g. tapes or films
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
    • D10B2321/021—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polyethylene
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
    • D10B2321/022—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polypropylene
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/06—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyethers
    • D10B2331/061—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyethers polyetherketones, polyetheretherketones, e.g. PEEK
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/04—Filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)
  • Woven Fabrics (AREA)

Description

455 3-80 2 Enligt fig. 1 innefattar en enkellagrad vävnad längsgående garn A - D. De längsgående garnen A - D har en tvärsnitts- form som är tillplattad i vävnadens plan. Tvärsnittsformen kan därvid vara rektangulär eller oval¿ Tvärgående trådarna I och _3 är mjuka garner eller multifilament av rund tvärsnittsform.
Genom den tillplattade tvärsnittsformen för de längsgående trådarna kan filtrets öppenhet lättare graderas, eftersom de öppna mellanrummen i en väv med flata trådar blir mindre än med runda trådar. Kakuppbyggnaden går också snabbare, efter- som de fasta slampartiklarna lättare fastnar på en flat yta än på en rund yta på grund av geometrin och strömningsförlop- pet. Som tidigare nämnts, sker kaksläppet-lättare, eftersom flata trådar ej bäddas in av kakan och av samma orsak håller sig filtret renare efter kakasläppeti I'fig. 2 visas en dubbellagrad vävnad och längsgående trådarna A, B, C och D utgöres av flata filament såsom vid utföringsfor- men enligt fig. 1. De tvårgående trådarna 1, 2, 4, 5, 7, 8, 10 och 11 utgöres av mjuka garn eller multifilament. övriga tvär- gående trådarna 3, 6, 9 och 12 utgöres av runda monofilament, Således uppnås genom komplettering av filamenten med mjukare multifilament eller spunna garner en lägre öppenhet. Förutom den minskade öppenheten kan de mjuka trådarna, om de inväves, så att de utfyll-er hålrummen mellan filamenten i filterytan att bidra till ettbättre och renare kaksläpp.
I en vävkonstruktion med längsgående flata filament och tvär- gående runda och med mjuka fyllnadsgarner i båda riktning- arna kan vävmönstret väljas så att de flata trådarna och fyll- nadsgarnerna till stärsta delen exponeras på den sida av filt- ret på vilken filterkakan skall bildas. Vidare skalk-noteras att i ovan beskrivna två utföringsformer enbart de längsgående trådarna utgöres av flata monofilament, men detta kan också ' gälla för de tvärgående trådarna.
Vi!

Claims (4)

' 455 380 PATENTKRAV
1. Vävt filtermedia för slamavvattning, vilken vävnad in- nefattar längsgående trådar och tvärgående trådar i ett eller flera lager, varvid de längsgående trådarna anbinder med de tvärgâende trådarna enligt kända vävmönster, k ä n n e - t e c k n a d av att åtminstone de längsgående trådarna har i vävnadens plan tillplattad tvärsnittsform och att de längs- och tvärgående trådarna utgöres av monofilament av plast, t.ex. polyester, polyamid, tetrafluorpolyeten, poly- eterketon, polytenylensulfidpolypropen och liknande.
2. Filtermedia enligt krav 1, k ä n n e t e c k n a d av att tvärsnittsformen är rektangulär.
3. Filtermedia enligt krav 1, k ä n n e t e c k n a d av att tvärsnittsformen är oval.
4. Vävt filtermedia enligt krav 1, k ä n n e t e c k - n a t av att längs- och/eller tvärgående monofilament kom- pletteras med mjuka filament eller garner så att hålrum mel- lan filamenten täckes och önskad genomsläpplighet erhålles.
SE8605361A 1986-12-12 1986-12-12 Vevt filtermedia for slamavvattning SE455380B (sv)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE8605361A SE455380B (sv) 1986-12-12 1986-12-12 Vevt filtermedia for slamavvattning
DE3785841T DE3785841T3 (de) 1986-12-12 1987-12-11 Schlammfilter.
EP87850385A EP0273892B2 (en) 1986-12-12 1987-12-11 Sludge Filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8605361A SE455380B (sv) 1986-12-12 1986-12-12 Vevt filtermedia for slamavvattning

Publications (2)

Publication Number Publication Date
SE8605361D0 SE8605361D0 (sv) 1986-12-12
SE455380B true SE455380B (sv) 1988-07-11

Family

ID=20366622

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8605361A SE455380B (sv) 1986-12-12 1986-12-12 Vevt filtermedia for slamavvattning

Country Status (3)

Country Link
EP (1) EP0273892B2 (sv)
DE (1) DE3785841T3 (sv)
SE (1) SE455380B (sv)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0493458B1 (en) * 1989-09-19 1993-09-08 Jwi Limited Press section dewatering fabric
US5411062A (en) * 1990-06-06 1995-05-02 Asten Group, Inc. Papermakers fabric with orthogonal machine direction yarn seaming loops
USRE35966E (en) * 1990-06-06 1998-11-24 Asten, Inc. Papermakers fabric with orthogonal machine direction yarn seaming loops
US5713396A (en) 1990-06-06 1998-02-03 Asten, Inc. Papermakers fabric with stacked machine and cross machine direction yarns
US5199467A (en) * 1990-06-06 1993-04-06 Asten Group, Inc. Papermakers fabric with stacked machine direction yarns
US5089324A (en) * 1990-09-18 1992-02-18 Jwi Ltd. Press section dewatering fabric
DE9211391U1 (de) * 1992-08-25 1992-10-29 Siebtuchfabrik AG, Olten Formiersieb
GB9815719D0 (en) 1998-07-21 1998-09-16 Scapa Group Plc Belt jointing apparatus
SE528037C3 (sv) * 2004-06-02 2006-09-19 Kerttu Eriksson Anordning för avvattning av slam

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE321814C (de) * 1914-05-25 1920-06-15 Ernest John Sweetland Metallgewebe fuer Filterzwecke
DE2531222C2 (de) * 1975-07-12 1986-02-20 Dieter 5143 Wassenberg Friedrichs Filtertressengewebe
CH608975A5 (en) * 1976-09-30 1979-02-15 Bopp & Co Ag G Metal filter cloth, in particular for precoated filters
ES483633A1 (es) * 1978-08-30 1980-04-16 Krause Walter Procedimiento para la separacion de sustancias solidas a partir de una fase liquida

Also Published As

Publication number Publication date
DE3785841T2 (de) 1993-09-09
EP0273892A2 (en) 1988-07-06
EP0273892B1 (en) 1993-05-12
EP0273892B2 (en) 1999-08-11
EP0273892A3 (en) 1988-11-30
DE3785841D1 (de) 1993-06-17
DE3785841T3 (de) 1999-12-02
SE8605361D0 (sv) 1986-12-12

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