EP1242562B1 - Method and device for exhausting the charging gases which result on charging a vertical flue oven - Google Patents
Method and device for exhausting the charging gases which result on charging a vertical flue oven Download PDFInfo
- Publication number
- EP1242562B1 EP1242562B1 EP00988710A EP00988710A EP1242562B1 EP 1242562 B1 EP1242562 B1 EP 1242562B1 EP 00988710 A EP00988710 A EP 00988710A EP 00988710 A EP00988710 A EP 00988710A EP 1242562 B1 EP1242562 B1 EP 1242562B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filling
- chamber
- coal
- gas
- charging
- 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.)
- Expired - Lifetime
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B27/00—Arrangements for withdrawal of the distillation gases
- C10B27/04—Arrangements for withdrawal of the distillation gases during the charging operation of the oven
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B31/00—Charging devices
- C10B31/02—Charging devices for charging vertically
- C10B31/04—Charging devices for charging vertically coke ovens with horizontal chambers
Definitions
- the invention relates to a method for the suction of filling gases, which during filling incurred a horizontal chamber furnace, wherein the filling gases during the Filling a chamber through a connected to this chamber riser and in addition to Kohleein spalllöchern in the furnace roof, through which the Chamber is filled with the charcoal, sucked off and fed to a gas reservoir be, which with raw gas, which at the coking of the kohle arises, is fed.
- the filling gases transferred into the gas sample are combined further processed with the raw gas.
- the filling gases must during filling and are deducted from the chamber, in particular during leveling, that at no point and at no time pressure conditions arise, which then lead to leakage of emissions.
- the invention is based on the object, the method described above to lead so that an emission - free exhaust of filling gases, which at the Filling a horizontal chamber furnace incurred, always and in particular to End of Kohle shellvorganges is ensured.
- the object is according to the invention in the method described above solved by the fact that during the coal filling at the Kohleein spalllöchern sucked filling gases supplied to the riser pipe of a neighboring chamber from where they also get into the gas template.
- coal filling a chamber is the gas extraction of this chamber and the gas extraction an adjoining chamber put into operation.
- the gas extraction preferably water or steam powered jet apparatus used, which are arranged in the riser pipes.
- the filling gases are detected quantitatively and supplied to the gas reservoir so that it further processed together with the raw gas can be. Transfer pipes between the chambers are not required. Even with a blockage of the gas path within the to be filled Jardines is the suction of filling gases at least at the Kohleein spalllöchern guaranteed.
- the invention also provides a system for carrying out the method.
- the basic structure of this system includes a horizontal chamber furnace from several parallel chambers, each one a riser for one Having a gas outlet and a plurality of coal filler holes which can be closed by a lid, and a coal hopper movable on the furnace roof and attached to the Kohleein spacher has connectable Greeskope that at its lower End are formed double-walled and surrounding the Kohle Pondllrohr Have annular gap for sucking off the filling gases.
- the riser pipes are on one Pipe gas line connected, which leads to a gas sample.
- To the Fütel telescopes a manifold is connected to the annular gap of the filling telescopes connected is.
- the collecting line is during the Coal filling of a chamber connected to the riser of a neighboring chamber.
- the claims 4 and 5 relate to further preferred embodiments of this Investment.
- each one a riser 1, 1 'for a gas outlet and several closable by a lid Kohleein collllöcher 2 have, as well as a on the furnace roof movable coal filling wagon, which connects to the coal filling holes 2 connectable Brownteleskope 3 has.
- the riser pipes 1 are connected to a crude gas line 4, which leads to a Gas template leads.
- the Gree 3 are double-walled at its lower end formed and have a coal filler pipe 5 surrounding Ring gap 6 on, through the filling gases, when filling incurred a horizontal chamber furnace, are sucked.
- a collecting line 7 connected to the annular gap 6 of the filling telescopes 3 and to the risers 1, 1 'of the chambers can be connected.
- the Risers 1, 1 ' have at their upper end one each closed by a cover 8 connection opening for the Manifold 7.
- the filling gases are during the filling of a chamber through the attached to this chamber riser. 1 aspirated and fed to a gas receiver, which with the at the coking of feed coal resulting raw gas fed becomes.
- the filling gases are at the Kohleein spalllöchern 2 in the furnace roof, through which the chamber with the Charcoal is filled, sucked during the coal filling and the riser 1 'of an adjacent chamber fed from where they also get into the gas template.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Coke Industry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Auxiliary Methods And Devices For Loading And Unloading (AREA)
- Supply Of Fluid Materials To The Packaging Location (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Absaugen von Füllgasen, die beim Befüllen eines Horizontalkammerofens anfallen, wobei die Füllgase während der Befüllung einer Kammer durch ein an diese Kammer angeschlossenes Steigrohr sowie zusätzlich an Kohleeinfülllöchern in der Ofendecke, durch welche die Kammer mit der Einsatzkohle befüllt wird, abgesaugt und einer Gasvorlage zugeführt werden, die mit Rohgas, welches bei der Verkokung der Einsatzkohle entsteht, gespeist wird. Die in die Gasvorlage überführten Füllgase werden zusammen mit dem Rohgas weiterverarbeitet.The invention relates to a method for the suction of filling gases, which during filling incurred a horizontal chamber furnace, wherein the filling gases during the Filling a chamber through a connected to this chamber riser and in addition to Kohleeinfülllöchern in the furnace roof, through which the Chamber is filled with the charcoal, sucked off and fed to a gas reservoir be, which with raw gas, which at the coking of the Einsatzkohle arises, is fed. The filling gases transferred into the gas sample are combined further processed with the raw gas.
Bei dem beschriebenen Verfahren müssen die Füllgase während des Befüllens und insbesondere während des Planierens so aus der Kammer abgezogen werden, dass an keiner Stelle und zu keiner Zeit Druckverhältnisse entstehen, welche dann zum Austreten von Emissionen führen können. Bekannt ist es, in den an die Kammern angeschlossenen Steigrohren wasser- oder dampfbetriebene Stahlapparate zum Absaugen der Füllgase anzuordnen. Es ist ferner bekannt, die Kammern des Horizontalkammerofens auf der den Steigrohren gegenüberliegenden Seite durch Überleitrohre zu verbinden und während der Kohlebeschickung die Absaugeinrichtungen der zu befüllenden Kammer sowie einer Nachbarkammer zu aktivieren. Trotz dieser Maßnahme ist eine emissionsfreie Absaugung der Füllgase, die beim Befüllen eines Horizontalkammerofens anfallen, nicht immer sichergestellt, da der Gassammelraum, insbesondere zum Ende des Füllvorganges, durch die Planierstange sowie Kohleberge vor und hinter der Planierstange zumindest teilweise verstopft sein kann. Dadurch ist der Fluss der Füllgase zum Steigrohr der Kammer und/oder zu einem an die Kammer angeschlossenen Überleitrohr nicht immer gewährleistet. In diesen Fällen treten Emissionen an der Fülllöchern aus. Der Druckaufbau in der Kammer und in den angeschlossenen Füllteleskopen kann so groß werden, dass die Füllgase durch das Kohlepolster in den Fülltrichter drücken und aus den Fülltrichter hinaus emittieren.In the described method, the filling gases must during filling and are deducted from the chamber, in particular during leveling, that at no point and at no time pressure conditions arise, which then lead to leakage of emissions. It is known in the connected to the chambers riser water- or steam-powered To arrange steel apparatus for sucking off the filling gases. It is also known the chambers of the horizontal chamber oven on the riser pipes opposite To connect side by transfer pipes and during coal loading the suction of the chamber to be filled and a Activate neighboring chamber. Despite this measure is an emission-free Extraction of the filling gases that occur when filling a horizontal chamber furnace, not always ensured, since the gas collection room, in particular for End of the filling process, through the dozer and coal mountains before and behind the leveler can be at least partially blocked. This is the flow of filling gases to the riser of the chamber and / or to one of the Chamber connected transfer tube not always guaranteed. In these Cases occur at the filling holes. The pressure build-up in the chamber and in the connected filling telescopes can become so large that the Press filling gases through the carbon padding into the filling funnel and out of the filling funnel emit out.
Ein Verfahren mit den eingangs beschriebenen Merkmalen ist aus der Druckschrift GB-A 863 943 bekannt. Bei diesem Verfahren werden die durch die Kohleeinfülllöcher in der Ofendecke abgesaugten Füllgase dem an die Kammer angeschlossenen Steigrohr zugeführt. Aufgrund der beim Befüllen auftretenden Schwankungen des im Steigrohr herrschenden Druckes ist hierdurch insbesondere am Ende einer Kohlebefüllung eine wirksame Absaugung der Füllgase an den Kohleeinfülllöchern nicht sichergestellt.A method with the features described above is from the document GB-A 863 943 known. In this process, the through the Kohleeinfülllöcher in the kiln ceiling sucked filling gases connected to the chamber Riser supplied. Due to the occurring during filling Fluctuations in the pressure prevailing in the riser are thereby particularly At the end of a coal filling effective exhaustion of the filling gases the Kohleeinfülllöchern not ensured.
In der Druckschrift DE-A 2 060 677 ist eine Einrichtung beschrieben, mit der Füllgase, die bei der Befüllung einer Koksofenkammer anfallen, ebenfalls an den Kohleeinfülllöchern abgesaugt werden können. Die Füllgase werden einer Füllgasreinigung zugeführt oder können alternativ in einen Nachbarofen oder in eine Vorlage für die entstehenden Rohgase geleitet werden. Beim Einleiten der kalten Füllgase in den heißen Nachbarofen besteht die Gefahr, dass das Mauerwerk des Nachbarofens erheblichen Temperaturschwankungen ausgesetzt wird und hierdurch beschädigt werden kann.In the document DE-A 2 060 677 a device is described, with the Filling gases that occur during the filling of a coke oven chamber, also on the coal filling holes can be sucked. The filling gases become one Filled gas cleaning supplied or alternatively in a neighboring furnace or in a template for the resulting raw gases are passed. When initiating the cold filling gases in the hot neighboring furnace there is a risk that the Masonry of the neighboring furnace exposed to significant temperature fluctuations will be damaged and thereby.
Der Erfindung liegt die Aufgabe zugrunde, das eingangs beschriebene Verfahren so zu führen, dass eine emissionsfreie Absaugung von Füllgasen, die beim Befüllen eines Horizontalkammerofens anfallen, stets und insbesondere zum Ende des Kohlefüllvorganges sichergestellt ist.The invention is based on the object, the method described above to lead so that an emission - free exhaust of filling gases, which at the Filling a horizontal chamber furnace incurred, always and in particular to End of Kohlefüllvorganges is ensured.
Die Aufgabe wird bei dem eingangs beschriebenen Verfahren erfindungsgemäß dadurch gelöst, dass die während der Kohlebefüllung an den Kohleeinfülllöchern abgesaugten Füllgase dem Steigrohr einer Nachbarkammer zugeführt werden, von wo sie ebenfalls in die Gasvorlage gelangen. Bei der Kohlebefüllung einer Kammer wird die Gasabsaugung dieser Kammer sowie die Gasabsaugung einer Nachbarkammer in Betrieb gesetzt. Dabei werden zur Gasabsaugung vorzugsweise wasser- oder dampfbetriebene Strahlapparate verwendet, die in den Steigrohren angeordnet sind.The object is according to the invention in the method described above solved by the fact that during the coal filling at the Kohleeinfülllöchern sucked filling gases supplied to the riser pipe of a neighboring chamber from where they also get into the gas template. When coal filling a chamber is the gas extraction of this chamber and the gas extraction an adjoining chamber put into operation. Here are the gas extraction preferably water or steam powered jet apparatus used, which are arranged in the riser pipes.
Bei dem erfindungsgemäßen Verfahren werden die Füllgase quantitativ erfasst und der Gasvorlage zugeführt, so dass sie mit dem Rohgas zusammen weiterverarbeitet werden können. Überleitrohre zwischen den Kammern sind nicht erforderlich. Selbst bei einer Blockage des Gasweges innerhalb des zu füllenden Raumes ist das Absaugen von Füllgasen zumindest an den Kohleeinfülllöchern gewährleistet.In the method according to the invention, the filling gases are detected quantitatively and supplied to the gas reservoir so that it further processed together with the raw gas can be. Transfer pipes between the chambers are not required. Even with a blockage of the gas path within the to be filled Raumes is the suction of filling gases at least at the Kohleeinfülllöchern guaranteed.
Gegenstand der Erfindung ist auch eine Anlage zur Durchführung des Verfahrens. Zum grundsätzlichen Aufbau dieser Anlage gehören ein Horizontalkammerofen aus mehreren parallelen Kammern, die jeweils ein Steigrohr für einen Gasabzug sowie mehrere durch Deckel verschließbare Kohleeinfülllöcher aufweisen, und einem auf der Ofendecke verfahrbaren Kohlefüllwagen, der an die Kohleeinfülllöcher anschließbare Füllteleskope aufweist, die an ihrem unteren Ende doppelwandig ausgebildet sind und einen das Kohlefüllrohr umgebenden Ringspalt zum Absaugen vom Füllgasen aufweisen. Die Steigrohre sind an eine Rohrgasleitung angeschlossen, die zu einer Gasvorlage führt. An die FüNteleskope ist eine Sammelleitung angeschlossen, die mit dem Ringspalt der Füllteleskope verbunden ist. Erfindungsgemäß ist die Sammelleitung während der Kohlebefüllung einer Kammer an das Steigrohr einer Nachbarkammer angeschlossen.The invention also provides a system for carrying out the method. The basic structure of this system includes a horizontal chamber furnace from several parallel chambers, each one a riser for one Having a gas outlet and a plurality of coal filler holes which can be closed by a lid, and a coal hopper movable on the furnace roof and attached to the Kohleeinfülllöcher has connectable Füllteleskope that at its lower End are formed double-walled and surrounding the Kohlefüllrohr Have annular gap for sucking off the filling gases. The riser pipes are on one Pipe gas line connected, which leads to a gas sample. To the Fütel telescopes a manifold is connected to the annular gap of the filling telescopes connected is. According to the invention, the collecting line is during the Coal filling of a chamber connected to the riser of a neighboring chamber.
Die Ansprüche 4 und 5 betreffen weitere bevorzugte Ausgestaltungen dieser
Anlage.The
Im Folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung erläutert. Die einzige Figur zeigt schematisch in einer perspektivischen Darstellung einen Ausschnitt aus einer erfindungsgemäßen Anlage.In the following, the invention will be described with reference to a purely exemplary embodiment illustrative drawing explained. The single figure shows schematically in one perspective view of a section of an inventive Investment.
Zum grundsätzlichen Aufbau der in der Figur dargestellten Anlage gehören ein
Horizontalkammerofen aus mehreren parallelen Kammern, die jeweils ein Steigrohr
1, 1' für einen Gasabzug sowie mehrere durch Deckel verschließbare
Kohleeinfülllöcher 2 aufweisen, sowie ein auf der Ofendecke
verfahrbarer Kohlefüllwagen, der an die Kohleeinfülllöcher
2 anschließbare Füllteleskope 3 aufweist. Die Steigrohre 1
sind an eine Rohgasleitung 4 angeschlossen, die zu einer
Gasvorlage führt. Innerhalb der Steigrohre 1, 1' sind
wasser- oder dampfbetriebene Strahlapparate als Absaugeinrichtungen
angeordnet.For the basic structure of the system shown in the figure include
Horizontal kiln of several parallel chambers, each one a riser
1, 1 'for a gas outlet and several closable by a lid
Kohleeinfülllöcher 2 have, as well as a on the furnace roof
movable coal filling wagon, which connects to the coal filling holes
2
Die Füllteleskope 3 sind an ihrem unteren Ende doppelwandig
ausgebildet und weisen einen das Kohlefüllrohr 5 umgebenden
Ringspalt 6 auf, durch den Füllgase, die bei der Befüllung
eines Horizontalkammerofens anfallen, absaugbar sind. An
die Füllteleskope 3 ist eine Sammelleitung 7 angeschlossen,
die mit dem Ringspalt 6 der Füllteleskope 3 verbunden und
an die Steigrohre 1, 1' der Kammern anschließbar ist. Die
Steigrohre 1, 1' besitzen an ihrem oberen Ende jeweils eine
durch einen Deckel 8 verschlossene Anschlussöffnung für die
Sammelleitung 7.The Füllteleskope 3 are double-walled at its lower end
formed and have a coal filler pipe 5 surrounding
Ring gap 6 on, through the filling gases, when filling
incurred a horizontal chamber furnace, are sucked. At
the
Die Füllgase werden während der Befüllung einer Kammer durch das an diese Kammer angeschlossene Steigrohr 1 abgesaugt und einer Gasvorlage zugeführt, die mit dem bei der Verkokung von Einsatzkohle entstehenden Rohgas gespeist wird. Zusätzlich werden die Füllgase an den Kohleeinfülllöchern 2 in der Ofendecke, durch welche die Kammer mit der Einsatzkohle befüllt wird, während der Kohlebefüllung abgesaugt und dem Steigrohr 1' einer benachbarten Kammer zugeführt, von wo sie ebenfalls in die Gasvorlage gelangen.The filling gases are during the filling of a chamber through the attached to this chamber riser. 1 aspirated and fed to a gas receiver, which with the at the coking of feed coal resulting raw gas fed becomes. In addition, the filling gases are at the Kohleeinfülllöchern 2 in the furnace roof, through which the chamber with the Charcoal is filled, sucked during the coal filling and the riser 1 'of an adjacent chamber fed from where they also get into the gas template.
Claims (5)
- Method of exhausting charging gases which result on filling a horizontal chamber oven, wherein the charging gases are exhausted during the filling of a chamber through a riser pipe (1) which is connected to said chamber, and also additionally at coal filling holes (2) in the oven roof, through which the chamber is filled with the feed coal, and said charging gases are fed to a gas collecting main which is supplied with raw gas produced during the coking of the feed coal, characterized in that the charging gases exhausted during the filling of coal at the coal filling holes (2) are fed to the riser pipe (1') of a neighbouring chamber, from where they likewise pass to the gas collecting main.
- Method according to Claim 1, characterized in that the riser pipes (1, 1') contain water-operated or steam-operated jet apparatuses for gas exhaustion, and in that, for filling the coal, the gas exhaustion of the chamber to be filled and the gas exhaustion of a neighbouring chamber are set in operation.
- Installation for carrying out the method according to Claim 1 or 2, comprising
a horizontal chamber oven consisting of a number of parallel chambers which each have a riser pipe (1, 1') for a gas exhaust system and also a number of coal filling holes (2) which can be closed by covers,
a coal filling carriage which can be moved on the oven roof and which has filling telescopes (3) that can be connected to the coal filling holes (2), which filling telescopes are double-walled at their lower end and have an annular gap (6) surrounding the coal filling tube (5) for exhausting charging gases,
wherein the riser pipes (1, 1') are connected to a crude gas line (4) which leads to a gas collecting main, and wherein a collecting line (7) is connected to the filling telescopes (3), said collecting line being connected to the annular gap of the filling telescopes (3), characterized in that, while filling a chamber with coal, the collecting line (7) can be connected to the riser pipe (1') of a neighbouring chamber. - Installation according to Claim 3, characterized in that the riser pipes (1, 1') have exhaust systems which are designed as water-operated or steam-operated jet apparatuses.
- Installation according to Claim 3 or 4, characterized in that the riser pipes (1, 1') each have, at their upper end, a connection opening for the collecting line (7) assigned to the filling telescopes (3), said connection opening being closed by a cover (8).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19963951A DE19963951C2 (en) | 1999-12-31 | 1999-12-31 | Method and device for extracting filling gases that occur when filling a horizontal chamber furnace |
| DE19963951 | 1999-12-31 | ||
| PCT/EP2000/011353 WO2001049807A1 (en) | 1999-12-31 | 2000-11-16 | Method and device for exhausting the charging gases which result on charging a vertical flue oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1242562A1 EP1242562A1 (en) | 2002-09-25 |
| EP1242562B1 true EP1242562B1 (en) | 2005-09-28 |
Family
ID=7935111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00988710A Expired - Lifetime EP1242562B1 (en) | 1999-12-31 | 2000-11-16 | Method and device for exhausting the charging gases which result on charging a vertical flue oven |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1242562B1 (en) |
| AT (1) | ATE305498T1 (en) |
| BR (1) | BR0016315B1 (en) |
| CA (1) | CA2391506C (en) |
| DE (2) | DE19963951C2 (en) |
| ES (1) | ES2249324T3 (en) |
| WO (1) | WO2001049807A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7233752U (en) * | 1972-12-14 | Hartung Kuhn & Co Gmbh | Device for loosening coal in funnel-like filling containers of filling trucks | |
| GB863943A (en) * | 1958-04-11 | 1961-03-29 | Carves Simon Ltd | Improvements relating to the charging of coke ovens |
| DE2060677C3 (en) * | 1970-12-10 | 1974-02-07 | Bergwerksverband Gmbh, 4300 Essen | Device for filling dry, possibly preheated coal into coking ovens |
| DE2336774A1 (en) * | 1973-07-19 | 1975-02-06 | Bergwerksverband Gmbh | METHOD AND DEVICE FOR SUCTION AND CLEANING OF FILLING GASES |
| DE3213169C2 (en) * | 1982-04-08 | 1984-03-01 | Gewerkschaft Schalker Eisenhütte, 4650 Gelsenkirchen | Coking furnace |
-
1999
- 1999-12-31 DE DE19963951A patent/DE19963951C2/en not_active Expired - Fee Related
-
2000
- 2000-11-16 DE DE50011264T patent/DE50011264D1/en not_active Expired - Lifetime
- 2000-11-16 WO PCT/EP2000/011353 patent/WO2001049807A1/en active IP Right Grant
- 2000-11-16 ES ES00988710T patent/ES2249324T3/en not_active Expired - Lifetime
- 2000-11-16 EP EP00988710A patent/EP1242562B1/en not_active Expired - Lifetime
- 2000-11-16 BR BRPI0016315-5A patent/BR0016315B1/en not_active IP Right Cessation
- 2000-11-16 CA CA002391506A patent/CA2391506C/en not_active Expired - Fee Related
- 2000-11-16 AT AT00988710T patent/ATE305498T1/en active
Also Published As
| Publication number | Publication date |
|---|---|
| BR0016315A (en) | 2002-08-27 |
| BR0016315B1 (en) | 2011-05-03 |
| CA2391506C (en) | 2008-01-15 |
| DE50011264D1 (en) | 2006-02-09 |
| ES2249324T3 (en) | 2006-04-01 |
| CA2391506A1 (en) | 2001-07-12 |
| DE19963951A1 (en) | 2001-07-19 |
| EP1242562A1 (en) | 2002-09-25 |
| ATE305498T1 (en) | 2005-10-15 |
| DE19963951C2 (en) | 2002-02-07 |
| WO2001049807A1 (en) | 2001-07-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
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