WO2010092064A1 - Method for producing a ceramic filter element - Google Patents
Method for producing a ceramic filter element Download PDFInfo
- 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
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
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010800073892A CN102438722A (en) | 2009-02-10 | 2010-02-10 | Method for producing a ceramic filter element |
DE112010001532T DE112010001532A5 (en) | 2009-02-10 | 2010-02-10 | Method for producing a ceramic filter element |
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 |
---|---|---|---|
DE200910008300 DE102009008300A1 (en) | 2009-02-10 | 2009-02-10 | Method for producing a ceramic filter element |
DE102009008300.6 | 2009-02-10 |
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 (en) | 2010-08-19 |
Family
ID=42077640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2010/051617 WO2010092064A1 (en) | 2004-07-10 | 2010-02-10 | Method for producing a ceramic filter element |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN102438722A (en) |
DE (2) | DE102009008300A1 (en) |
WO (1) | WO2010092064A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2668147A1 (en) * | 2011-01-28 | 2013-12-04 | Mann + Hummel Gmbh | Ceramic body composed of an aluminium titanate mixture |
CN112295312A (en) * | 2019-07-25 | 2021-02-02 | 江苏正迈过滤技术有限公司 | Production method of medical filter element |
CN113069809B (en) * | 2021-03-24 | 2023-03-17 | 河北津宏化工有限公司 | Phenolic resin fiber filter element and production process thereof |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63134020A (en) | 1986-11-27 | 1988-06-06 | Matsushita Electric Ind Co Ltd | Exhaust gas filter for diesel engine |
US20040118771A1 (en) * | 2002-12-20 | 2004-06-24 | Schukar Murray R. | Filter coating, winding, finishing and manufacturing system |
WO2006005668A1 (en) | 2004-07-10 | 2006-01-19 | Mann+Hummel Gmbh | Method for producing a ceramic filter element |
-
2009
- 2009-02-10 DE DE200910008300 patent/DE102009008300A1/en not_active Withdrawn
-
2010
- 2010-02-10 WO PCT/EP2010/051617 patent/WO2010092064A1/en active Application Filing
- 2010-02-10 DE DE112010001532T patent/DE112010001532A5/en not_active Ceased
- 2010-02-10 CN CN2010800073892A patent/CN102438722A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63134020A (en) | 1986-11-27 | 1988-06-06 | Matsushita Electric Ind Co Ltd | Exhaust gas filter for diesel engine |
US20040118771A1 (en) * | 2002-12-20 | 2004-06-24 | Schukar Murray R. | Filter coating, winding, finishing and manufacturing system |
WO2006005668A1 (en) | 2004-07-10 | 2006-01-19 | Mann+Hummel Gmbh | Method for producing a ceramic filter element |
Also Published As
Publication number | Publication date |
---|---|
CN102438722A (en) | 2012-05-02 |
DE112010001532A5 (en) | 2012-08-30 |
DE102009008300A1 (en) | 2010-08-12 |
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