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WO2010092064A1 - Procédé de fabrication d'un élément filtrant céramique - Google Patents

Procédé de fabrication d'un élément filtrant céramique Download PDF

Info

Publication number
WO2010092064A1
WO2010092064A1 PCT/EP2010/051617 EP2010051617W WO2010092064A1 WO 2010092064 A1 WO2010092064 A1 WO 2010092064A1 EP 2010051617 W EP2010051617 W EP 2010051617W WO 2010092064 A1 WO2010092064 A1 WO 2010092064A1
Authority
WO
WIPO (PCT)
Prior art keywords
ceramic
filter element
filter
plugging
producing
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.)
Ceased
Application number
PCT/EP2010/051617
Other languages
German (de)
English (en)
Inventor
Kathrin Lichtenwalter
Jochen Linhardt
Sabine Otterbach
Kathrin Fischer
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.)
Mann and Hummel GmbH
Original Assignee
Mann and Hummel 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
Application filed by Mann and Hummel GmbH filed Critical Mann and Hummel GmbH
Priority to DE112010001532T priority Critical patent/DE112010001532A5/de
Priority to CN2010800073892A priority patent/CN102438722A/zh
Publication of WO2010092064A1 publication Critical patent/WO2010092064A1/fr
Priority to US13/206,128 priority patent/US20120001371A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
    • B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
    • B01D46/525—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material which comprises flutes
    • 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
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2418—Honeycomb filters

Definitions

  • the invention relates to a method for producing a ceramic filter element in an exhaust filter of an internal combustion engine.
  • a ceramic filter element for an exhaust filter is described in an internal combustion engine, which is constructed of a corrugated, spirally wound filter web.
  • heat-resistant, inorganic fibers are mixed with ceramic powder in an aqueous suspension and processed to form a web.
  • Several superimposed webs are rolled up to the desired shape of the filter body, wherein honeycomb flow channels are formed between adjacent filter webs. The filter body is then fired at high temperature.
  • WO 2006/005668 discloses a method for producing a ceramic filter element in an exhaust filter for internal combustion engines.
  • a combustible, non-ceramic carrier web is first soaked with a ceramic slip and then burned out in the desired geometric shape until the carrier web is burned and a rigid filter body is formed.
  • the invention relates in particular to the production of ceramic filter elements as diesel particulate filters and particulate filters for internal combustion engines and as ceramic supports for catalyst support.
  • Honeycomb ceramic filter elements have excellent heat resistance and are therefore used as a catalyst carrier for automotive exhaust gases and as a filter for trapping soot in the exhaust gas of a diesel engine.
  • two superposed carrier webs can be interconnected or glued, wherein at least one of the two carrier webs corrugated or corrugated is to form the said flow channels (semi-finished product).
  • the carrier webs are preferably designed as paper webs and consist of cellulose. But there are also other organic and inorganic substances which are flammable, in question.
  • the two superimposed carrier webs can be rolled up on a winding machine to an approximately cylindrical filter body, which forms a wound filter. Of course, other geometric shapes and figures are possible.
  • the o.g. Method offers the advantage that the closure can be introduced already in the manufacture of the paper elements and does not require an additional, downstream manufacturing step, as e.g. extruded honeycomb bodies is the case.
  • the paper winding body is impregnated, including the ceramic plugging in a ceramic slurry, then dried and then sintered. There is a risk here that dripping slip mass also closes channels at the end which should remain open. Disclosure of the invention
  • Fig. 1 shows a section of a filter element or its preform before watering in Keramikschlicker.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Filtering Materials (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un élément filtrant céramique d'un filtre de gaz d'échappement destiné à des moteurs à combustion interne. Selon ce procédé, un corps enroulé en papier qui présente sur une face ou sur les deux faces des canaux d'écoulement fermés alternativement par une obturation céramique est imprégné d'une suspension céramique puis séché et fritté. L'obturation céramique est appliquée selon l'invention pour être décalée de la face frontale du corps enroulé en papier vers l'intérieur.
PCT/EP2010/051617 2004-07-10 2010-02-10 Procédé de fabrication d'un élément filtrant céramique Ceased WO2010092064A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE112010001532T DE112010001532A5 (de) 2009-02-10 2010-02-10 Verfahren zur Herstellung eines keramischen Filterelements
CN2010800073892A CN102438722A (zh) 2009-02-10 2010-02-10 陶瓷滤芯的生产方法
US13/206,128 US20120001371A1 (en) 2004-07-10 2011-08-09 Method for Producing a Ceramic Filter Element

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009008300.6 2009-02-10
DE200910008300 DE102009008300A1 (de) 2009-02-10 2009-02-10 Verfahren zur Herstellung eines keramischen Filterelements

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US13/033,979 Continuation-In-Part US8557009B2 (en) 2004-07-10 2011-02-24 Ceramic filter element and method of manufacture

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US13/206,128 Continuation US20120001371A1 (en) 2004-07-10 2011-08-09 Method for Producing a Ceramic Filter Element

Publications (1)

Publication Number Publication Date
WO2010092064A1 true WO2010092064A1 (fr) 2010-08-19

Family

ID=42077640

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/051617 Ceased WO2010092064A1 (fr) 2004-07-10 2010-02-10 Procédé de fabrication d'un élément filtrant céramique

Country Status (3)

Country Link
CN (1) CN102438722A (fr)
DE (2) DE102009008300A1 (fr)
WO (1) WO2010092064A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2668147A1 (fr) * 2011-01-28 2013-12-04 Mann + Hummel Gmbh Corps céramique constitué d'un mélange de titanate d'aluminium
CN112295312A (zh) * 2019-07-25 2021-02-02 江苏正迈过滤技术有限公司 一种医用滤芯的生产方法
CN113069809B (zh) * 2021-03-24 2023-03-17 河北津宏化工有限公司 一种酚醛树脂纤维滤芯及其生产工艺

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63134020A (ja) 1986-11-27 1988-06-06 Matsushita Electric Ind Co Ltd デイ−ゼルエンジン排ガスフイルタ
US20040118771A1 (en) * 2002-12-20 2004-06-24 Schukar Murray R. Filter coating, winding, finishing and manufacturing system
WO2006005668A1 (fr) 2004-07-10 2006-01-19 Mann+Hummel Gmbh Procede de production d'un element filtrant ceramique

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63134020A (ja) 1986-11-27 1988-06-06 Matsushita Electric Ind Co Ltd デイ−ゼルエンジン排ガスフイルタ
US20040118771A1 (en) * 2002-12-20 2004-06-24 Schukar Murray R. Filter coating, winding, finishing and manufacturing system
WO2006005668A1 (fr) 2004-07-10 2006-01-19 Mann+Hummel Gmbh Procede de production d'un element filtrant ceramique

Also Published As

Publication number Publication date
DE112010001532A5 (de) 2012-08-30
DE102009008300A1 (de) 2010-08-12
CN102438722A (zh) 2012-05-02

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