DE102004029640A1 - Cleaning particulate filter, especially for diesel engine, comprises burning combustible substances and loosening resulting ash by mechanical vibration - Google Patents
Cleaning particulate filter, especially for diesel engine, comprises burning combustible substances and loosening resulting ash by mechanical vibration Download PDFInfo
- Publication number
- DE102004029640A1 DE102004029640A1 DE102004029640A DE102004029640A DE102004029640A1 DE 102004029640 A1 DE102004029640 A1 DE 102004029640A1 DE 102004029640 A DE102004029640 A DE 102004029640A DE 102004029640 A DE102004029640 A DE 102004029640A DE 102004029640 A1 DE102004029640 A1 DE 102004029640A1
- Authority
- DE
- Germany
- Prior art keywords
- filter
- filter body
- mechanical vibration
- order
- combustible substances
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
-
- 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
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/74—Regeneration of the filtering material or filter elements inside the filter by forces created by movement of the filter element
- B01D46/76—Regeneration of the filtering material or filter elements inside the filter by forces created by movement of the filter element involving vibrations
-
- 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
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/80—Chemical processes for the removal of the retained particles, e.g. by burning
- B01D46/84—Chemical processes for the removal of the retained particles, e.g. by burning by heating only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
- B01D2279/30—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for treatment of exhaust gases from IC Engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2290/00—Movable parts or members in exhaust systems for other than for control purposes
- F01N2290/08—Movable parts or members in exhaust systems for other than for control purposes with oscillating or vibrating movement
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Reinigen eines einen festen Filterkörper aus porösem, hitzebeständigem Material, wie Sinter- oder Keramikkörper, umfassenden Rußfilters, insbesondere zum Filtern des Abgases eines Dieselmotors.The The invention relates to a method for cleaning a solid filter body made of porous, heat-resistant material, like sintered or ceramic bodies, comprehensive soot filter, in particular for filtering the exhaust gas of a diesel engine.
Dieselmotoren werden häufig mit Rußfiltern ausgestattet. Das gilt sowohl für Motoren von Kraftfahrzeugen als auch für fest installierte Motoren, zum Beispiel innerhalb von umschlossenen Räumen, in Blockheizkraftwerken usw. Bei Betrieb sammelt sich im Filter Ruß, es können aber auch andere Ablagerungen, zum Beispiel Ölverschmutzungen, auftreten. In der bisherigen Praxis werden die Filter zum Reinigen, unter Zugabe von Harnsäure, nachgeheizt. Dadurch soll erreicht werden, daß der im Filter gesammelte Ruß und andere organisch chemische Bestandteile zu Asche verbrennen. Die entstandene Asche bleibt jedoch an den Filterwänden kleben. Mit der Zeit verstopft die Asche die Poren des Filters, so daß die Leistung des angeschlossenen Motors nachläßt. Das Filter eines Kraftfahrzeug-Dieselmotors muß daher nach beispielsweise 80.000 km, das Filter eines Stand-Dieselmotors nach ca. 3.000 bis 6.000 Betriebsstunden ausgewechselt werden. Im vorliegenden Zusammenhang umfaßt der Begriff „Asche" alle zur Verstopfung des Filters beitragenden festen Rückstände aus dem Betrieb des Motors und/oder dem Aufheizen bzw. Nachglühen.diesel engines become common equipped with soot filters. That goes for both Engines of motor vehicles as well as fixed engines, for example, inside enclosed rooms, in combined heat and power plants etc. During operation, soot accumulates in the filter, but other deposits, for example, oil spills, occur. In the past practice, the filters are used for cleaning, with the addition of uric acid, reheated. This is to ensure that the collected in the filter Soot and burn other organic chemical components to ashes. The However, ashes remain stuck to the filter walls. Clogged with time the ash the pores of the filter, so that the power of the connected Motors wears off. The Filter a motor vehicle diesel engine must therefore after, for example, 80,000 km, the filter of a stationary diesel engine after 3,000 to 6,000 operating hours are replaced. In the present Context the term "ashes" all constipated of the filter contributing solid residues from the operation of the engine and / or heating or afterglow.
Der Erfindung liegt die Aufgabe zugrunde, ein umweltverträgliches Verfahren zum vollständigen Reinigen der eingangs beschriebenen Rußfilter zu schaffen, das es erlaubt, ohne den Einsatz chemischer Hilfsmittel die praktisch ursprüngliche Reinheit, das heißt die Reinheit eines neuwertigen Filters, wieder herzustellen. Störende Aschereste sollen also nicht im Filter bleiben.Of the Invention is based on the object, an environmentally friendly Procedure for complete cleaning the soot filter described above that allows it, without the use of chemical aids the practically original Purity, that is the purity of a new filter to restore. Disturbing ash residues So do not stay in the filter.
Die erfindungsgemäße Lösung wird im Patentanspruch 1 beschrieben. Vorzugsweise besteht das erfindungsgemäße Rußfilter-Reinigungsverfahren darin, daß die Asche durch mechanische Vibration des Filterkörpers gelöst sowie durch Absaugen und/oder Spülen aus dem Filterkörper entfernt wird. Einige Verbesserungen und weitere Ausgestaltungen werden in den Unteransprüchen angegeben.The solution according to the invention described in claim 1. Preferably, the soot filter cleaning method according to the invention in that the Ash solved by mechanical vibration of the filter body and by suction and / or do the washing up from the filter body Will get removed. Some improvements and further refinements will be made in the subclaims specified.
Wenn ein Filter zu reinigen ist, das Ruß oder dergleichen verbrennbare Substanzen enthält, wird der Filterkörper vorzugsweise zunächst so lange auf eine zum Verbrennen der Substanzen ausreichende Temperatur, bevorzugt in der Größenordnung von 650° Celsius, aufgeheizt bzw. geglüht, bis die Substanzen zu Asche verbrannt sind. Im Rahmen des erfindungsgemäßen Verfahrens erfordert dieses Glühen keine chemischen Zusätze. Das jeweilige Filter wird – so wie es ankommt bzw. ist – in die Heizvorrichtung gesetzt.If a filter is to be cleaned, the soot or the like combustible Contains substances, becomes the filter body preferably first so long to a temperature sufficient to burn the substances, preferably of the order of magnitude from 650 ° Celsius, heated or annealed, until the substances are burned to ashes. In the context of the method according to the invention requires this glow no chemical additives. The respective filter will - so how it is or is - in the heater is set.
Ein entscheidendes Merkmal der vorliegenden Erfindung ist das mechanische Vibrieren bzw. Schütteln des Filterkörpers, um die Asche oder sonstige Schmutzteile, von Filterwänden zu lösen. Die sich bei dem Aufheizen bzw. Vorglühen gebildete Asche wird erfindungsgemäß nicht durch irgendwelche chemischen Hilfsmittel sondern rein mechanisch durch das Vibrieren des Filterkörpers gelöst. Die gelöste, quasi staubförmige Asche kann bei der Trockenbehandlung praktisch vollständig, aus dem Filter herausgesaugt, zum Beispiel mit Hilfe eines Industriestaubsaugers, und/oder aus dem Filterkörper herausgeschüttelt werden. Abschließende Untersuchungen haben ergeben, daß ein erfindungsgemäß gereinigtes Keramik- oder Sinterkörper-Filter so sauber ist, daß der Filterteil und dessen Filterwirkung von einem fabrikneuen Filter kaum zu unterscheiden ist.One key feature of the present invention is the mechanical Vibrate or shake the filter body, to the ash or other debris, from filter walls to to solve. The ashes formed in the heating or preglowing according to the invention does not by any chemical aids but purely mechanically the vibration of the filter body solved. The solved, quasi-dusty Ashes can be virtually complete during dry treatment sucked out of the filter, for example by means of an industrial vacuum cleaner, and / or from the filter body shaken out become. concluding Investigations have shown that a purified according to the invention Ceramic or sintered body filter so clean is that the Filter part and its filter effect of a brand new filter hardly distinguishable.
Gemäß weiterer Erfindung erfolgt das Rütteln bzw. Vibrieren des Filters bei der Ausführung des Verfahrens mit einer wechselnden Frequenz von 0 Hz bis in die Größenordnung von 100 Hz und mit einer Schwingungsweite bis in die Größenordnung von zehn Millimetern, vorzugsweise mit ebenfalls wechselnder Größe. Bei einem Ausführungsbeispiel wird der zu vibrierende Filterkörper auf eine Platte gesetzt, die von einem Unwuchtmotor angetrieben wird. Vorzugsweise soll die Frequenz permanent von null auf den maximalen Wert hin- und hergeschaltet werden, zum Beispiel mit Hilfe eines Frequenzumrichters bzw. (etwa bei Anwendung eines Unwuchtmotors) mit Hilfe eines Drehzahlgebers. Bevorzugt erfolgt das Vibrieren während einer Zeitdauer von größenordnungsmäßig 5 bis 10 Minuten. Stark verschmutzte Filter werden länger als relativ saubere Filter kürzer mit der Wechselfrequenz behandelt.According to others Invention is the shaking or vibrating the filter in the execution of the method with a changing frequency from 0 Hz to the order of 100 Hz and with an oscillation range up to the order of ten millimeters, preferably with also changing size. In one embodiment becomes the filter body to be vibrated put on a plate driven by an unbalance motor becomes. Preferably, the frequency should be permanently from zero to zero maximum value can be switched back and forth, for example, with help a frequency converter or (about when using an unbalance motor) with Help of a speed sensor. Preferably, the vibration occurs during a Duration of order of 5 to 10 mins. Heavily soiled filters become longer than relatively clean filters shorter with the alternating frequency treated.
Wenn die erfindungsgemäße Reinigung bei einem Filter, zum Beispiel wegen starker Verölung, nicht auf Anhieb funktionieren sollte, kann das Verfahren mit Aufheizen, Vibrieren und Aussaugen wiederholt werden. Zusätzlich oder alternativ kann das Filter auch mit Wasser und einem Fettlöser, nach Art eines Haushaltsspülmittels, gefüllt und im gefüllten Zustand erfindungsgemäß vibriert werden. An diesen Prozeß schließt sich gegebenenfalls ein Spülen und Trocknen des Innern des Filterkörpers an. Bei dem Spülen wird die Asche in der Regel vollständig aus dem Filter entfernt. Eventuell kann sich jedoch an Trocknen noch das Absaugen und/oder Schütteln anschließen.If the purification according to the invention with a filter, for example because of strong oiling, does not work right away should, the process can be with heating, vibrating and sucking be repeated. additionally or alternatively, the filter can also be mixed with water and a degreaser, after Kind of a household detergent, filled and in the filled state vibrates according to the invention become. This process closes optionally a rinse and drying the interior of the filter body. When rinsing is the ashes are usually complete removed from the filter. However, it may be due to drying still the suction and / or shaking connect.
Um im Rußfilter bei Betrieb gesammelte Substanzen weitgehend vollständig aus dem Filterkörper zu entfernen, wird der Filterkörper – ohne Zugabe von Chemikalien –, bevorzugt auf eine Temperatur von größenordnungsmäßig 650° Celsius, so lange erhitzt bzw. geglüht, bis der gesammelte Ruß oder dergleichen zu Asche verbrannt ist. Erfindungsgemäß wird die Asche – trocken oder unter Wasser – durch mechanische Vibration des Filterkörper von dessen innerer Wandung gelöst. Die gelöste Asche wird dann durch Absaugen und/oder Spülen aus dem Filterkörper entfernt. Bei stark verölten Filtern reicht es oft aus, das Filter vor dem erfindungsgemäßen (mechanischen) Vibrieren länger als ein lediglich verrußtes Filter aufzuheizen, anstelle von Aufheizen kann auch Brennen oder Glühen gesagt wer den. Anstelle von Wasser sind auch andere Flüssigkeiten anwendbar. Aus Kosten- und Umweltschutzgründen wird jedoch Wasser bevorzugt.To substances collected in the soot filter during operation largely completely out of the filter body, the filter body is - without the addition of chemicals - preferably heated to a temperature of the order of 650 ° Celsius, so long or annealed until the collected soot or the like is burned to ashes. According to the invention, the ashes - dry or under water - solved by mechanical vibration of the filter body of the inner wall. The dissolved ash is then removed by suction and / or rinsing from the filter body. In heavily oiled filters, it is often sufficient to heat the filter before the invention (mechanical) vibration longer than a merely sooted filter, instead of heating can also burn or glow said who the. Instead of water, other liquids are applicable. For cost and environmental reasons, however, water is preferred.
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004029640A DE102004029640A1 (en) | 2004-06-18 | 2004-06-18 | Cleaning particulate filter, especially for diesel engine, comprises burning combustible substances and loosening resulting ash by mechanical vibration |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004029640A DE102004029640A1 (en) | 2004-06-18 | 2004-06-18 | Cleaning particulate filter, especially for diesel engine, comprises burning combustible substances and loosening resulting ash by mechanical vibration |
Publications (1)
Publication Number | Publication Date |
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DE102004029640A1 true DE102004029640A1 (en) | 2006-01-12 |
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Family Applications (1)
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DE102004029640A Ceased DE102004029640A1 (en) | 2004-06-18 | 2004-06-18 | Cleaning particulate filter, especially for diesel engine, comprises burning combustible substances and loosening resulting ash by mechanical vibration |
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DE (1) | DE102004029640A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010051080A1 (en) * | 2010-11-12 | 2012-05-16 | Erwin Koppe Keramische Heizgeräte GmbH | Method and device for reducing the proportion of fine dust in the exhaust air of a solid fuel burning small fire system |
DE102010061598A1 (en) * | 2010-12-28 | 2012-06-28 | Jens-Werner Kipp | Process for cleaning particulate filters |
DE102011007941A1 (en) * | 2011-01-03 | 2012-07-05 | Jens-Werner Kipp | Method for cleaning diesel exhaust gas particulate filter of diesel engine that is utilized for driving passenger car, involves pressing end of supplying unit on end of exhaust pipe such that filter is kept under specific pressure |
DE102011011342A1 (en) * | 2011-02-16 | 2012-08-16 | Jens-Werner Kipp | Method for cleaning particulate filters e.g. exhaust particulate filters, in diesel engine of motor vehicle, involves forming nitrogen compound as main component, to act on catalytically active surface, and heating cleaning substance |
DE102011011997A1 (en) * | 2011-02-23 | 2012-08-23 | Jens-Werner Kipp | Method for cleaning particulate filters e.g. exhaust particulate filters, in diesel engine of motor vehicle, involves forming nitrogen compound as main component, to act on catalytically active surface, and heating cleaning substance |
WO2017144301A1 (en) | 2016-02-24 | 2017-08-31 | Tistech Sprl | Filter cleaning |
EP3650668A1 (en) * | 2018-11-08 | 2020-05-13 | Volvo Car Corporation | A cleaning system for a vehicle component |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3341177A1 (en) * | 1983-11-14 | 1984-04-05 | Wilhelm Dr.-Ing. 3200 Hildesheim Wiederhold | Replaceable filter element, especially for the purification of diesel engine exhaust gases |
-
2004
- 2004-06-18 DE DE102004029640A patent/DE102004029640A1/en not_active Ceased
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3341177A1 (en) * | 1983-11-14 | 1984-04-05 | Wilhelm Dr.-Ing. 3200 Hildesheim Wiederhold | Replaceable filter element, especially for the purification of diesel engine exhaust gases |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010051080A1 (en) * | 2010-11-12 | 2012-05-16 | Erwin Koppe Keramische Heizgeräte GmbH | Method and device for reducing the proportion of fine dust in the exhaust air of a solid fuel burning small fire system |
DE102010061598A1 (en) * | 2010-12-28 | 2012-06-28 | Jens-Werner Kipp | Process for cleaning particulate filters |
DE102011007941A1 (en) * | 2011-01-03 | 2012-07-05 | Jens-Werner Kipp | Method for cleaning diesel exhaust gas particulate filter of diesel engine that is utilized for driving passenger car, involves pressing end of supplying unit on end of exhaust pipe such that filter is kept under specific pressure |
DE102011011342A1 (en) * | 2011-02-16 | 2012-08-16 | Jens-Werner Kipp | Method for cleaning particulate filters e.g. exhaust particulate filters, in diesel engine of motor vehicle, involves forming nitrogen compound as main component, to act on catalytically active surface, and heating cleaning substance |
DE102011011997A1 (en) * | 2011-02-23 | 2012-08-23 | Jens-Werner Kipp | Method for cleaning particulate filters e.g. exhaust particulate filters, in diesel engine of motor vehicle, involves forming nitrogen compound as main component, to act on catalytically active surface, and heating cleaning substance |
WO2017144301A1 (en) | 2016-02-24 | 2017-08-31 | Tistech Sprl | Filter cleaning |
US10617988B2 (en) | 2016-02-24 | 2020-04-14 | Tistech Sprl | Filter cleaning |
EP3650668A1 (en) * | 2018-11-08 | 2020-05-13 | Volvo Car Corporation | A cleaning system for a vehicle component |
US20200149469A1 (en) * | 2018-11-08 | 2020-05-14 | Volvo Car Corporation | Cleaning system for a vehicle component |
CN111156084A (en) * | 2018-11-08 | 2020-05-15 | 沃尔沃汽车公司 | Cleaning system for vehicle components |
US11525423B2 (en) * | 2018-11-08 | 2022-12-13 | Volvo Car Corporation | Cleaning system for a vehicle component |
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OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |