EP2385879B1 - Method for reconditioning of the worn surface of grinding rollers of a material bed roller mill - Google Patents

Method for reconditioning of the worn surface of grinding rollers of a material bed roller mill Download PDF

Info

Publication number
EP2385879B1
EP2385879B1 EP11709047.2A EP11709047A EP2385879B1 EP 2385879 B1 EP2385879 B1 EP 2385879B1 EP 11709047 A EP11709047 A EP 11709047A EP 2385879 B1 EP2385879 B1 EP 2385879B1
Authority
EP
European Patent Office
Prior art keywords
roller
new
grinding
cylindrical surface
welding
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.)
Not-in-force
Application number
EP11709047.2A
Other languages
German (de)
French (fr)
Other versions
EP2385879A1 (en
Inventor
Bernd KRIPZAK
Herbert Pingel
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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
ThyssenKrupp Resource Technologies 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=44065526&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2385879(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by ThyssenKrupp Resource Technologies GmbH filed Critical ThyssenKrupp Resource Technologies GmbH
Publication of EP2385879A1 publication Critical patent/EP2385879A1/en
Application granted granted Critical
Publication of EP2385879B1 publication Critical patent/EP2385879B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B02C4/30—Shape or construction of rollers
    • B02C4/305—Wear resistant rollers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49718—Repairing
    • Y10T29/49721—Repairing with disassembling
    • Y10T29/49723—Repairing with disassembling including reconditioning of part
    • Y10T29/49725—Repairing with disassembling including reconditioning of part by shaping
    • Y10T29/49726—Removing material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49718—Repairing
    • Y10T29/49721—Repairing with disassembling
    • Y10T29/49723—Repairing with disassembling including reconditioning of part
    • Y10T29/49725—Repairing with disassembling including reconditioning of part by shaping
    • Y10T29/49726—Removing material
    • Y10T29/49728—Removing material and by a metallurgical operation, e.g., welding, diffusion bonding, casting

Definitions

  • the invention relates to a process for reprocessing the worn surface of grinding rolls of a high-bed roll mill.
  • a good bed roller mill consists of two roller units each comprising a grinding roller mounted on a shaft, bearings provided on both sides of the grinding roller and associated bearing blocks. Two of these roller units are aligned so that a predetermined nip is formed between two opposing rollers. Both rolls are driven in opposite directions and pressed against each other at high pressures of at least 50 MPa.
  • Conventional roll units have a roll diameter in the range of 1.5 to 3 m and have a weight of up to 120 tons.
  • grinding rollers must be reprocessed after a certain period of operation in a service center or in a workshop. Such reprocessing processes are for example in the DE 10 2006 028 546 A1 , in the DE 10 2007 018 090 A1 and the DE 10 2007 012 102 A1 described in more detail.
  • the cost of reprocessing is approximately in the range of 60 to 80% of the original price.
  • Another shortcoming is the sometimes long downtime.
  • DE 26 12 173 B DE 10 2005 004 036 B4 and DE 26 12 173 B are known "on-site" repairs, with the necessary tools are brought to the workpiece.
  • the invention is therefore based on the object to reduce the cost of reprocessing the worn surface of grinding rollers of a high-pressure roller mill.
  • a mobile, arranged in a container processing station can be accommodated for example on the trailer of a truck. After the life of each good bed roller mill are relatively accurately predictable, standing on different sites good bed roller mills can be approached by a predetermined schedule with the mobile processing station.
  • the complete roller unit with the refining roller to be reprocessed is removed from the good bed roller mill and positioned directly in front of the mobile processing station.
  • the grinding roller is thus stored during their work-up in their own camps. After the grinding roller does not have to be accommodated in the container, the container can be sized correspondingly smaller.
  • the processing of the grinding rollers on site also allows a reduction in the downtime of the high-pressure roller mill to a minimum.
  • the grinding rollers are provided with build-up welding as wear protection, the new cylindrical surface is re-coated during work-up by build-up welding. For this purpose, in particular a plurality of welding layers are applied.
  • the mobile processing station has a welding device, so that a material layer for increasing the diameter and / or armoring can be welded onto the new cylindrical surface prior to drilling. Furthermore, the processing station comprises a drive which rotates the grinding roller in the manufacture of the new cylindrical surface.
  • the production of the new cylindrical surface can be done by milling or another machining process.
  • milling a milling head is advantageously used, which is used radially aligned with the grinding roller used.
  • the mobile processing station for carrying out the above method comprises at least one cutting machine tool and a drive for rotating the grinding roller, which are arranged in the container.
  • the cutting machine tool can be formed for example by a boring machine, a grinding machine, a lathe or a robot.
  • a device for supplying coolants and / or lubricants and optionally means for collecting and returning excess coolants and / or lubricants may be provided in the container.
  • Fig. 1 shown good bed roller mill consists of two roller units A and B.
  • Fig. 2 one of the roller units is shown in somewhat more detail in a longitudinal section. It has in each case one mounted on a shaft 1 grinding roller 2, provided on both sides of the grinding roller bearings 3, 4 and associated bearing stones 5, 6.
  • the two rolls are driven in opposite directions and pressed in operation with a pressure of more than 50 MPa against each other, whereby a predetermined gap is maintained, in which the material to be ground is fed.
  • Fig. 3 shows (in a schematic longitudinal partial section through the grinding roller 2) on the left the new condition of the grinding roller 2, which has a roller body 2a, which is provided with a plurality of holes 2b, are embedded in the profile body 2c with a portion of their length while they protrude with the remaining part of its length over the surface 2d of the roller body 2a.
  • grinding roller 2 is provided in the new state on the left side with several surfacing layers 2e as wear protection. On the right side of Fig. 4 the worn condition of the surfacing layers 2e 'is indicated.
  • the mobile processing station C has in particular a container 8, in which at least one cutting machine tool 9 is provided, which is preferably a robot with a pivotable and rotatable about several axes pivot arm 9a and a machining tool 9b.
  • a drive 10 for rotating the grinding roller 2 is provided in the container.
  • a sprocket 11 is screwed to one end of the shaft 1 of the roller unit A, which is connected via a drive chain 12 to the drive 10. With this drive, a rotary motion can be transmitted to the shaft 1.
  • a measuring device is provided on the drive 10, which allows accurate positioning of the rotational position of the grinding roller 2.
  • an operating stand 13 for controlling the machine tool 9 and the drive 10 a magazine 14 for new profile body and storage locations for various processing tools 9c, 9d, for example, a drill head and a welding device available.
  • a device 15 for the supply of coolants and / or lubricants is still provided in the container C. Furthermore, means 16 for collecting and returning excess coolants and / or lubricants are indicated by dashed lines.
  • the container C is further designed so that the roller unit opposite longitudinal side can be opened upwards (see Fig. 6 ). That's it Of course, it is also conceivable that a part or the entire ceiling of the container can be opened.
  • the reworking unit A is positioned immediately before the processing station C, so that the grinding roller is within reach of the machine tool 9.
  • the special feature is that the complete roller unit is aligned in front of the mobile processing station so that the grinding roller can rotate in its own bearings. After an alignment of the grinding roller with respect to the machine tool 9, the reprocessing can begin, based on the FIGS. 7a to 7f is explained in more detail.
  • Fig. 7a shows a worn grinding roller
  • the wear protection was formed with profiled bodies 2c.
  • the old profile bodies 2c are removed ( Fig. 7b ).
  • a new cylindrical surface 2h is produced by means of the machine tool 9.
  • a milling head is used as the machining tool 9b, which is used radially aligned with the grinding roller.
  • the surface of the grinding roller is removed until all the holes 2b have completely disappeared ( Fig. 7c ).
  • the mobile processing station C has a welding device or the machine tool 9 has a welding head 9d, it is possible to weld on the new cylindrical surface material layers 2i for increasing the diameter ( Fig. 7d ).
  • new bores 2f can be drilled into the new cylindrical surface 2h or into the material layers 2i. It is important that a given hole pattern is maintained depending on the diameter of the grinding roller. The correct positioning takes place via a corresponding control of the machine tool 9 and the drive 10.
  • the downtime of the good bed roller mill can be reduced to a minimum, since long transport times to and from Service Centers omitted.
  • the mobile processing station can be housed in a container having a weight of about 10 to 12 tons.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)

Description

Die Erfindung betrifft ein Verfahren zur Wiederaufarbeitung der verschlissenen Oberfläche von Mahlwalzen einer Gutbettwalzenmühle.The invention relates to a process for reprocessing the worn surface of grinding rolls of a high-bed roll mill.

Gutbettwalzenmühlen sind seit 30 Jahren bekannt und ermöglichen nach wie vor ein energetisch günstiges Zerkleinerungsverfahren für stückige Materialien, wie insbesondere Kalkstein. Eine Gutbettwalzenmühle besteht aus zwei Walzeneinheiten, die jeweils eine auf einer Welle gehalterte Mahlwalze, zu beiden Seiten der Mahlwalze vorgesehene Lager und zugehörige Lagersteine umfasst. Zwei dieser Walzeneinheiten werden so ausgerichtet, dass zwischen zwei gegenüberliegenden Walzen ein vorgegebener Walzenspalt entsteht. Beide Walzen werden gegenläufig angetrieben und mit hohen Drücken von wenigstens 50 MPa gegeneinander gedrückt.Good-bed roller mills have been known for 30 years and still allow an energetically favorable comminution process for particulate materials, in particular limestone. A good bed roller mill consists of two roller units each comprising a grinding roller mounted on a shaft, bearings provided on both sides of the grinding roller and associated bearing blocks. Two of these roller units are aligned so that a predetermined nip is formed between two opposing rollers. Both rolls are driven in opposite directions and pressed against each other at high pressures of at least 50 MPa.

Durch die hohe Belastung sind die Oberflächen der Mahlwalzen solcher Gutbettwalzenmühlen einem hohen Verschleiß ausgesetzt. Es kommen daher verschiedene Verschleißschutzkonzepte zur Anwendung, wobei die Auftragsschweißung und die Anbringung von vorstehenden Profilkörpern zu den gängigsten Maßnahmen zählen.Due to the high load, the surfaces of the grinding rollers such high-pressure roller mills are exposed to high wear. There are therefore various wear protection concepts used, with the build-up welding and the attachment of projecting profile bodies are among the most common measures.

Übliche Walzeneinheiten haben einen Walzendurchmesser im Bereich von 1,5 bis 3m und weisen einen Gewicht von bis zu 120 to auf. Nach heutigem technischen Stand müssen Mahlwalzen nach einer bestimmten Betriebszeit in einem Servicecenter oder in einer Werkstatt wiederaufgearbeitet werden. Derartige Wiederaufarbeitungsverfahren sind beispielsweise in der DE 10 2006 028 546 A1 , in der DE 10 2007 018 090 A1 und der DE 10 2007 012 102 A1 näher beschrieben.Conventional roll units have a roll diameter in the range of 1.5 to 3 m and have a weight of up to 120 tons. According to the current state of the art, grinding rollers must be reprocessed after a certain period of operation in a service center or in a workshop. Such reprocessing processes are for example in the DE 10 2006 028 546 A1 , in the DE 10 2007 018 090 A1 and the DE 10 2007 012 102 A1 described in more detail.

Die Kosten für die Wiederaufarbeitung liegen etwa im Bereich von 60 bis 80% des Neupreises. Hinzu kommen die nicht unerheblichen Kosten für den Transport der Mahlwalzen in ein Servicecenter oder eine entsprechend ausgestattete Werkstatt. Ein weiteres Manko sind die teilweise langen Ausfallzeiten.The cost of reprocessing is approximately in the range of 60 to 80% of the original price. In addition there are the not inconsiderable costs for the transport of the Grinding rollers in a service center or a suitably equipped workshop. Another shortcoming is the sometimes long downtime.

Aus DE 44 02 958 A1 , DE 26 12 173 B , DE 10 2005 004 036 B4 und DE 26 12 173 B sind "vor Ort"-Reparaturen bekannt, wobei die notwendigen Werkzeuge zum Werkstück gebracht werden.Out DE 44 02 958 A1 . DE 26 12 173 B . DE 10 2005 004 036 B4 and DE 26 12 173 B are known "on-site" repairs, with the necessary tools are brought to the workpiece.

Der Erfindung liegt daher die Aufgabe zugrunde, die Kosten für die Wiederaufarbeitung der verschlissenen Oberfläche von Mahlwalzen einer Gutbettwalzenmühle zu reduzieren.The invention is therefore based on the object to reduce the cost of reprocessing the worn surface of grinding rollers of a high-pressure roller mill.

Erfindungsgemäß wird diese Aufgabe durch die Merkmale des Anspruches 1 gelöst.According to the invention, this object is solved by the features of claim 1.

Das erfindungsgemäße Verfahren zur Wiederaufarbeitung der verschlissenen Oberfläche von Mahlwalzen einer Gutbettwalzenmühle umfasst folgende Verfahrensschritte:

  1. a. Bereitstellung einer mobilen, in einem Container angeordneten Bearbeitungsstation mit wenigstens einer spanabhebenden Werkzeugmaschine und einem Antrieb zum Drehen der Mahlwalze,
  2. b. Ausbau der kompletten Walzeneinheit mit der wiederaufzuarbeitenden Mahlwalze aus der Gutbettwalzenmühle,
  3. c. Positionieren der kompletten Walzeneinheit vor der mobilen Bearbeitungsstation und Ankoppeln des Antriebs an die Welle der Mahlwalze,
  4. d. Herstellen einer neuen zylindrischen Oberfläche mit Hilfe der spanabhebenden Werkzeugmaschine und
  5. e. Herstellen eines neuen Verschleißschutzes mit neuen Profilkörpern und/oder einer Auftragsschweißung.
The process according to the invention for the reprocessing of the worn surface of grinding rolls of a good bed roll mill comprises the following process steps:
  1. a. Providing a mobile, arranged in a container processing station with at least one cutting machine tool and a drive for rotating the grinding roller,
  2. b. Removal of the complete roll unit with the refurbishing roll from the good bed roll mill,
  3. c. Positioning the complete roller unit in front of the mobile processing station and coupling the drive to the shaft of the grinding roller,
  4. d. Produce a new cylindrical surface with the help of the cutting machine tool and
  5. e. Producing a new wear protection with new profile bodies and / or build-up welding.

Durch die Bereitstellung einer mobilen, in einem Container angeordneten Bearbeitungsstation ist es nun möglich, die verschlissenen Oberflächen von Mahlwalzen vor Ort wiederaufzuarbeiten. Dadurch können zum einen enorme Transportkosten eingespart werden, außerdem ist eine zeitlich wesentlich schnellere Wiederaufbereitung möglich, da die Transportzeiten entfallen. Befand sich das Servicecenter in einem benachbarten Land, entstanden unter Umständen auch durch Zollformalitäten nicht unerhebliche weitere Kosten, die nunmehr wegfallen.By providing a mobile processing station located in a container, it is now possible to rework the worn surfaces of grinding rolls on site. This can be saved on the one hand enormous transport costs, in addition, a much faster reprocessing time is possible because the transport times eliminated. If the service center was located in a neighboring country, customs fees could also result in considerable costs, which are now eliminated.

Eine mobile, in einem Container angeordnete Bearbeitungsstation kann beispielsweise auf dem Anhänger eines LKWs untergebracht werden. Nachdem für jede Gutbettwalzenmühle die Standzeiten relativ genau vorhersagbar sind, können die an verschiedenen Standorten stehenden Gutbettwalzenmühlen nach einem vorgegebenen Zeitplan mit der mobilen Bearbeitungsstation angefahren werden.A mobile, arranged in a container processing station can be accommodated for example on the trailer of a truck. After the life of each good bed roller mill are relatively accurately predictable, standing on different sites good bed roller mills can be approached by a predetermined schedule with the mobile processing station.

Um die Bearbeitungsstation möglichst kompakt zu halten, wurde auf ansonsten in den Servicecentem übliche Lager zur Halterung der Mahlwalzen verzichtet. Es ist vielmehr vorgesehen, dass die komplette Walzeneinheit mit der wiederaufzuarbeitenden Mahlwalze aus der Gutbettwalzenmühle ausgebaut und direkt vor der mobilen Bearbeitungsstation positioniert wird. Die Mahlwalze ist somit während ihrer Aufarbeitung in ihren eigenen Lagern gelagert. Nachdem die Mahlwalze nicht im Container untergebracht werden muss, kann der Container entsprechend kleiner dimensioniert werden.In order to keep the processing station as compact as possible, was otherwise omitted in the Servicecentem usual bearing for holding the grinding rollers. Rather, it is envisaged that the complete roller unit with the refining roller to be reprocessed is removed from the good bed roller mill and positioned directly in front of the mobile processing station. The grinding roller is thus stored during their work-up in their own camps. After the grinding roller does not have to be accommodated in the container, the container can be sized correspondingly smaller.

Die Aufarbeitung der Mahlwalzen vor Ort ermöglicht ferner eine Reduzierung der Stillstandzeiten der Gutbettwalzenmühle auf ein Minimum.The processing of the grinding rollers on site also allows a reduction in the downtime of the high-pressure roller mill to a minimum.

Weitere Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Further embodiments of the invention are the subject of the dependent claims.

Sind die Mahlwalzen mit einer Vielzahl von Profilkörpern versehen, die mit einer Teillänge in Bohrungen eines Walzenkörpers eingelagert sind und mit dem übrigen Teil ihrer Länge über die Oberfläche des Walzenkörpers vorstehen, kann dieser vorstehende Teil der Profilkörper sowie die Oberfläche des Walzenkörpers zumindest teilweise verschleißen. In diesem Fall umfasst das Wiederaufarbeitungsverfahren folgende weitere Verfahrensschritte:

  1. a. Entfernen der verschlissenen Profilkörper vor dem Herstellen der neuen zylindrischen Oberfläche,
  2. b. Bohren von neuen Bohrungen für neue Profilkörper nach dem Herstellen der neuen zylindrischen Oberfläche und
  3. c. Einsetzen von neuen Profilkörpern in die Bohrungen.
If the grinding rollers are provided with a plurality of profiled bodies, which are embedded with a partial length in bores of a roller body and protrude with the remaining part of their length over the surface of the roller body, this protruding part of the profile body and the surface of the roller body can at least partially wear out. In this case, the reprocessing process comprises the following further process steps:
  1. a. Removing the worn profile body before making the new cylindrical surface,
  2. b. Drilling new holes for new profile body after making the new cylindrical surface and
  3. c. Insertion of new profile bodies in the holes.

Sind die Mahlwalzen hingegen mit einer Auftragsschweißung als Verschleißschutz versehen, wird die neue zylindrische Oberfläche bei der Aufarbeitung durch Auftragsschweißung wieder aufgepanzert. Hierzu werden insbesondere mehrere Schweißlagen aufgebracht.If, on the other hand, the grinding rollers are provided with build-up welding as wear protection, the new cylindrical surface is re-coated during work-up by build-up welding. For this purpose, in particular a plurality of welding layers are applied.

Die mobile Bearbeitungsstation weist hierzu eine Schweißeinrichtung auf, sodass auf die neue zylindrische Oberfläche vor dem Bohren eine Materialschicht zur Durchmesservergrößerung und/oder Aufpanzerung aufgeschweißt werden kann. Weiterhin umfasst die Bearbeitungsstation einen Antrieb, der die Mahlwalze bei der Herstellung der neuen zylindrischen Oberfläche dreht.For this purpose, the mobile processing station has a welding device, so that a material layer for increasing the diameter and / or armoring can be welded onto the new cylindrical surface prior to drilling. Furthermore, the processing station comprises a drive which rotates the grinding roller in the manufacture of the new cylindrical surface.

Die Herstellung der neuen zylindrischen Oberfläche kann durch Fräsen oder ein anderes spanabhebendes Bearbeitungsverfahren erfolgen. Beim Fräsen wird zweckmäßigerweise ein Fräskopf verwendet, der radial zur Mahlwalze ausgerichtet zum Einsatz kommt.The production of the new cylindrical surface can be done by milling or another machining process. When milling a milling head is advantageously used, which is used radially aligned with the grinding roller used.

Je nach Ausgestaltung der Mahlwalzen ist es erforderlich, dass ein ggf. vorhandener Seitenverschleißschutz und/oder Kantenverschleißschutz entfernt wird, bevor die neue zylindrische Oberfläche hergestellt wird.Depending on the design of the grinding rollers, it is necessary that any existing side wear protection and / or edge wear protection is removed before the new cylindrical surface is produced.

Die mobile Bearbeitungsstation zur Durchführung des obigen Verfahrens weist wenigstens eine spanabhebende Werkzeugmaschine und einen Antrieb zum Drehen der Mahlwalze auf, die in dem Container angeordnet sind. Die spanabhebende Werkzeugmaschine kann beispielsweise durch ein Bohrwerk, eine Schleifmaschine, eine Drehmaschine oder einen Roboter gebildet werden. Weiterhin können im Container eine Einrichtung zur Zufuhr von Kühl- und/oder Schmierstoffen und ggf. Mittel zum Auffangen und Rückführen von überschüssigen Kühl- und/oder Schmierstoffen vorgesehen werden. Weiterhin besteht die Möglichkeit, einen Bedienstand zur Ansteuerung der spanabhebenden Werkzeugmaschine und des Antriebs im Container vorzusehen.The mobile processing station for carrying out the above method comprises at least one cutting machine tool and a drive for rotating the grinding roller, which are arranged in the container. The cutting machine tool can be formed for example by a boring machine, a grinding machine, a lathe or a robot. Furthermore, a device for supplying coolants and / or lubricants and optionally means for collecting and returning excess coolants and / or lubricants may be provided in the container. Furthermore, it is possible to provide a control station for controlling the cutting machine tool and the drive in the container.

Weitere Vorteile und Ausgestaltungen der Erfindung werden im Folgenden anhand der Beschreibung und der Zeichnung näher erläutert.Further advantages and embodiments of the invention will be explained in more detail below with reference to the description and the drawing.

In der Zeichnung zeigen

Fig. 1
schematische Seitenansicht einer Gutbettwalzenmühle,
Fig. 2
eine schematische Längsschnittdarstellung einer Walzeneinheit,
Fig. 3
eine schematische Darstellung einer Walzenmühle mit Profilkörpern im Neuzustand bzw. im verschlissenen Zustand,
Fig. 4
eine schematische Darstellung einer Walzenmühle mit Auftragsschweißung im Neuzustand bzw. im verschlissenen Zustand,
Fig. 5
eine Draufsicht der mobilen Bearbeitungsstation und einer Walzeneinheit während der Aufarbeitung der Mahlwalze,
Fig. 6
eine Seitenansicht der mobilen Bearbeitungsstation und der Walzeneinheit gemäß Fig. 5 und
Fig. 7a bis 7f
schematische Darstellungen der Mahlwalze in verschiedenen Stadien während der Aufarbeitung.
In the drawing show
Fig. 1
schematic side view of a good bed roller mill,
Fig. 2
a schematic longitudinal sectional view of a roller unit,
Fig. 3
a schematic representation of a roll mill with profile bodies in new condition or in the worn state,
Fig. 4
a schematic representation of a roll mill with build-up welding in new condition or in the worn state,
Fig. 5
a top view of the mobile processing station and a roller unit during the processing of the grinding roller,
Fig. 6
a side view of the mobile processing station and the roller unit according to Fig. 5 and
Fig. 7a to 7f
schematic representations of the grinding roller in various stages during the work-up.

Die in Fig. 1 dargestellte Gutbettwalzenmühle besteht aus zwei Walzeneinheiten A und B. In Fig. 2 ist eine der Walzeneinheiten in einer Längsschnittdarstellung etwas detaillierter gezeigt. Sie weist jeweils eine auf einer Welle 1 gelagerte Mahlwalze 2, zu beiden Seiten der Mahlwalze vorgesehene Lager 3, 4 und zugehörige Lagersteine 5, 6 auf.In the Fig. 1 shown good bed roller mill consists of two roller units A and B. In Fig. 2 one of the roller units is shown in somewhat more detail in a longitudinal section. It has in each case one mounted on a shaft 1 grinding roller 2, provided on both sides of the grinding roller bearings 3, 4 and associated bearing stones 5, 6.

Die beiden Walzen werden gegenläufig angetrieben und im Betrieb mit einem Druck von mehr als 50 MPa gegeneinander gedrückt, wobei ein vorgegebener Spalt aufrechterhalten wird, in den das Mahlgut eingezogen wird.The two rolls are driven in opposite directions and pressed in operation with a pressure of more than 50 MPa against each other, whereby a predetermined gap is maintained, in which the material to be ground is fed.

Fig. 3 zeigt (in einem schematischen Längs-Teilschnitt durch die Mahlwalze 2) links den Neuzustand der Mahlwalze 2, die einen Walzenkörper 2a aufweist, der mit einer Vielzahl von Bohrungen 2b versehen ist, in die Profilkörper 2c mit einem Teil ihrer Länge eingelagert sind, während sie mit dem übrigen Teil ihrer Länge über die Oberfläche 2d des Walzenkörpers 2a vorstehen. Fig. 3 shows (in a schematic longitudinal partial section through the grinding roller 2) on the left the new condition of the grinding roller 2, which has a roller body 2a, which is provided with a plurality of holes 2b, are embedded in the profile body 2c with a portion of their length while they protrude with the remaining part of its length over the surface 2d of the roller body 2a.

Auf der rechten Seite ist der verschlissene Zustand nach einer gewissen Betriebszeit dargestellt. Die Oberfläche 2d' des Walzenkörpers 2a' ist nun - unterschiedlich in den einzelnen Bereichen - mehr oder weniger stark abgetragen. Ebenso sind die Profilkörper 2c' durch den Verschleiß gegenüber der ursprünglichen Länge (Höhenlinie 7) verkürzt.On the right side, the worn condition is shown after a certain period of operation. The surface 2d 'of the roller body 2a' is now - different in the individual areas - more or less removed. Likewise, the profile body 2c 'shortened by the wear compared to the original length (contour line 7).

Die in Fig. 4 gezeigte Mahlwalze 2 ist im Neuzustand auf der linken Seite mit mehreren Auftragsschweißlagen 2e als Verschleißschutz versehen. Auf der rechten Seite von Fig. 4 ist der verschlissene Zustand der Auftragsschweißlagen 2e' angedeutet.In the Fig. 4 shown grinding roller 2 is provided in the new state on the left side with several surfacing layers 2e as wear protection. On the right side of Fig. 4 the worn condition of the surfacing layers 2e 'is indicated.

In den Figuren 5 und 6 ist eine mobile Bearbeitungsstation C während der Wiederaufarbeitung der Walzeneinheit A dargstellt. Die mobile Bearbeitungsstation C weist insbesondere einen Container 8 auf, in dem wenigstens eine spanabhebende Werkzeugmaschine 9 vorgesehen ist, bei der es sich vorzugsweise um einen Roboter mit einem um mehrere Achsen schwenk- und drehbeweglichen Schwenkarm 9a und einem Bearbeitungswerkzeug 9b handelt. Weiterhin ist im Container ein Antrieb 10 zum Drehen der Mahlwalze 2 vorgesehen. Hierzu wird beispielsweise an das eine Ende der Welle 1 der Walzeneinheit A ein Kettenrad 11 angeschraubt, welches über eine Antriebskette 12 mit dem Antrieb 10 verbunden wird. Mit diesem Antrieb kann auf die Welle 1 eine Drehbewegung übertragen werden. Zweckmäßigerweise ist am Antrieb 10 eine Messeinrichtung vorgesehen, die eine genaue Positionierung der Drehstellung der Mahlwalze 2 ermöglicht.In the Figures 5 and 6 is a mobile processing station C dargstellt during the reprocessing of the roller unit. The mobile processing station C has in particular a container 8, in which at least one cutting machine tool 9 is provided, which is preferably a robot with a pivotable and rotatable about several axes pivot arm 9a and a machining tool 9b. Furthermore, a drive 10 for rotating the grinding roller 2 is provided in the container. For this purpose, for example, a sprocket 11 is screwed to one end of the shaft 1 of the roller unit A, which is connected via a drive chain 12 to the drive 10. With this drive, a rotary motion can be transmitted to the shaft 1. Conveniently, a measuring device is provided on the drive 10, which allows accurate positioning of the rotational position of the grinding roller 2.

Weiterhin sind im Container ein Bedienstand 13 zur Ansteuerung der Werkzeugmaschine 9 und des Antriebs 10, ein Magazin 14 für neue Profilkörper und Ablagestellen für verschiedene Bearbeitungswerkzeuge 9c, 9d, beispielsweise ein Bohrkopf und eine Schweißeinrichtung, vorhanden.Furthermore, in the container, an operating stand 13 for controlling the machine tool 9 and the drive 10, a magazine 14 for new profile body and storage locations for various processing tools 9c, 9d, for example, a drill head and a welding device available.

Im dargestellten Ausführungsbeispiel ist im Container C weiterhin eine Einrichtung 15 zur Zufuhr von Kühl- und/oder Schmierstoffen vorgesehen. Ferner sind Mittel 16 zum Auffangen und Rückführen von überschüssigen Kühl- und/oder Schmierstoffen gestrichelt angedeutet.In the illustrated embodiment, a device 15 for the supply of coolants and / or lubricants is still provided in the container C. Furthermore, means 16 for collecting and returning excess coolants and / or lubricants are indicated by dashed lines.

Der Container C ist weiterhin so ausgestaltet, dass die der Walzeneinheit gegenüber liegende Längsseite nach oben aufgeklappt werden kann (siehe Fig. 6). Dabei ist es natürlich auch denkbar, dass dabei auch ein Teil oder die gesamte Decke des Containers zu öffnen ist.The container C is further designed so that the roller unit opposite longitudinal side can be opened upwards (see Fig. 6 ). That's it Of course, it is also conceivable that a part or the entire ceiling of the container can be opened.

Die aufzuarbeitende Walzeneinheit A wird unmittelbar vor der Bearbeitungsstation C positioniert, sodass sich die Mahlwalze in Reichweite der Werkzeugmaschine 9 befindet. Die Besonderheit besteht darin, dass die komplette Walzeneinheit vor der mobilen Bearbeitungsstation ausgerichtet wird, sodass die Mahlwalze in ihren eigenen Lagern drehen kann. Nach einer Ausrichtung der Mahlwalze in Bezug auf die Werkzeugmaschine 9 kann die Wiederaufarbeitung beginnen, die anhand der Figuren 7a bis 7f näher erläutert wird.The reworking unit A is positioned immediately before the processing station C, so that the grinding roller is within reach of the machine tool 9. The special feature is that the complete roller unit is aligned in front of the mobile processing station so that the grinding roller can rotate in its own bearings. After an alignment of the grinding roller with respect to the machine tool 9, the reprocessing can begin, based on the FIGS. 7a to 7f is explained in more detail.

Fig. 7a zeigt eine verschlissene Mahlwalze, deren Verschleißschutz mit Profilkörpern 2c gebildet wurde. In einem ersten Schritt werden die alten Profilkörper 2c entfernt (Fig. 7b). Anschließend wird eine neue zylindrische Oberfläche 2h mit Hilfe der Werkzeugmaschine 9 hergestellt. Dabei kommt beispielsweise als Bearbeitungswerkzeug 9b ein Fräskopf zur Anwendung, der radial zur Mahlwalze ausgerichtet zum Einsatz kommt. Dabei wird die Oberfläche der Mahlwalze so weit abgetragen, bis alle Bohrungen 2b vollständig verschwunden sind (Fig. 7c). Fig. 7a shows a worn grinding roller, the wear protection was formed with profiled bodies 2c. In a first step, the old profile bodies 2c are removed ( Fig. 7b ). Subsequently, a new cylindrical surface 2h is produced by means of the machine tool 9. In this case, for example, a milling head is used as the machining tool 9b, which is used radially aligned with the grinding roller. In this case, the surface of the grinding roller is removed until all the holes 2b have completely disappeared ( Fig. 7c ).

Sofern die mobile Bearbeitungsstation C eine Schweißeinrichtung bzw. die Werkzeugmaschine 9 einen Schweißkopf 9d aufweist, besteht die Möglichkeit, auf die neue zylindrische Oberfläche Materialschichten 2i zur Durchmesservergrößerung aufzuschweißen (Fig. 7d).If the mobile processing station C has a welding device or the machine tool 9 has a welding head 9d, it is possible to weld on the new cylindrical surface material layers 2i for increasing the diameter ( Fig. 7d ).

Anschließend können mit Hilfe eines Bohrkopfes neue Bohrungen 2f in die neue zylindrische Oberfläche 2h bzw. in die Materialschichten 2i gebohrt werden. Dabei ist es wichtig, dass ein vorgegebenes Lochbild in Abhängigkeit des Durchmessers der Mahlwalze eingehalten wird. Die richtige Positionierung erfolgt dabei über eine entsprechende Ansteuerung der Werkzeugmaschine 9 und des Antriebs 10.Subsequently, with the aid of a drill head, new bores 2f can be drilled into the new cylindrical surface 2h or into the material layers 2i. It is important that a given hole pattern is maintained depending on the diameter of the grinding roller. The correct positioning takes place via a corresponding control of the machine tool 9 and the drive 10.

Nachdem alle Bohrungen 2f gebohrt sind, können diese mit neuen Profilkörpern 2g bestückt werden.After all holes 2f have been drilled, they can be fitted with new profiled bodies 2g.

Durch die Wiederaufarbeitung der Mahlwalze in unmittelbarer Nähe der Gutbettwalzenmühle können die Stillstandszeiten der Gutbettwalzenmühle auf ein Minimum reduziert werden, da lange Transportzeiten zu und von Servicecentem entfallen. Zwar ist es erforderlich, die mobile Bearbeitungsstation zu den jeweils im Einsatz befindlichen und aufzuarbeitenden Mahlwalzen zu transportieren, jedoch sind die Transportkosten um ein vielfaches geringer, da eine mobile Bearbeitungsstation nur etwa ein Zehntel des Gewichtes einer Mahlwalze aufweist. Die mobile Bearbeitungsstation kann insbesondere in einem Container untergebracht werden, der ein Gewicht von etwa 10 bis 12 Tonnen aufweist.By reprocessing the grinding roller in the immediate vicinity of the good bed roller mill, the downtime of the good bed roller mill can be reduced to a minimum, since long transport times to and from Service Centers omitted. Although it is necessary to transport the mobile processing station to each in use and to be processed grinding rollers, but the transport costs are many times lower, since a mobile processing station has only about one tenth of the weight of a grinding roller. In particular, the mobile processing station can be housed in a container having a weight of about 10 to 12 tons.

Claims (8)

  1. Method for reconditioning the worn surface (2d') of grinding rollers (2) of a high-compression roller mill, wherein a complete roller unit (A, B) consists of the grinding roller (2) mounted on a shaft (1), bearings (3, 4) provided on both sides of the grinding roller, and associated bearing jewels (5, 6), and the grinding rollers (2) are provided with wear protection formed by profiled bodies (2c) or build-up welding, characterised by the following steps:
    a. providing a mobile processing station (C) which is arranged in a container (8) and has at least one cutting machine tool (9) and a drive (10) for rotating the grinding roller (2),
    b. removing the complete roller unit (A, B) with the grinding roller (2) that is to be reconditioned from the high-compression roller mill,
    c. positioning the complete roller unit (A, B) in front of the mobile processing station (C) and coupling the drive (10) to the shaft (1) of the grinding roller (2),
    d. producing a new cylindrical surface (2h) by means of the cutting machine tool (9), and
    e. producing new wear protection with new profiled bodies (2g) and/or with build-up welding.
  2. Method according to claim 1, characterised in that the grinding rollers (2) have a plurality of profiled bodies (2c) which are inserted with a portion of their length into bores (2b) of a roller body (2a) and protrude with the remaining portion of their length beyond the surface (2a) of the roller body, wherein the protruding portion of the profiled bodies (2c) and the surface of the roller body (2a) is at least partially worn, wherein the reconditioning method comprises the following further steps:
    a. removing the worn profiled bodies (2c') before the new cylindrical surface (2h) is produced,
    b. drilling new bores (2f) for new profiled bodies (2g) after the new cylindrical surface (2h) has been produced, and
    c. inserting new profiled bodies (2g) into the bores (2f).
  3. Method according to claim 1, characterised in that the grinding rollers (2) are provided with build-up welding as wear protection, and the new cylindrical surface (2h) is armoured again by build-up welding during reconditioning.
  4. Method according to claim 1, characterised in that a welding device is provided in the mobile processing station (C), and a layer of material (2i) for increasing the diameter and/or for armouring is welded onto the new cylindrical surface (2h) prior to drilling.
  5. Method according to claim 1, characterised in that the grinding roller is rotated by means of the drive (10) during production of the new cylindrical surface (2h).
  6. Method according to claim 1, characterised in that the new cylindrical surface (2h) is produced by milling or other cutting machining processes.
  7. Method according to claim 6, characterised in that there is employed for the milling a milling head which is used with a radial orientation with respect to the grinding roller (2).
  8. Method according to claim 1, characterised in that any lateral wear protection and/or edge wear protection that may be present is removed before the new cylindrical surface (2h) is produced.
EP11709047.2A 2010-03-05 2011-03-03 Method for reconditioning of the worn surface of grinding rollers of a material bed roller mill Not-in-force EP2385879B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010010431A DE102010010431B4 (en) 2010-03-05 2010-03-05 Process for reprocessing the worn surface of grinding rolls of a good bed roll mill
PCT/EP2011/053169 WO2011107538A1 (en) 2010-03-05 2011-03-03 Method for reprocessing the worn surface of grinding rollers of a material bed roller mill

Publications (2)

Publication Number Publication Date
EP2385879A1 EP2385879A1 (en) 2011-11-16
EP2385879B1 true EP2385879B1 (en) 2013-10-30

Family

ID=44065526

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11709047.2A Not-in-force EP2385879B1 (en) 2010-03-05 2011-03-03 Method for reconditioning of the worn surface of grinding rollers of a material bed roller mill

Country Status (7)

Country Link
US (1) US8728569B2 (en)
EP (1) EP2385879B1 (en)
CA (1) CA2791405C (en)
DE (1) DE102010010431B4 (en)
DK (1) DK2385879T3 (en)
MX (1) MX2012010234A (en)
WO (1) WO2011107538A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013114516B4 (en) * 2013-12-19 2023-11-02 Flsmidth A/S Grinding roller and device for processing a grinding roller
GB2559422A (en) * 2017-02-07 2018-08-08 Mec Holding Gmbh A method of repairing a grinding parts used in a roller mill and to grinding parts so repaired
CN112371245A (en) * 2020-10-31 2021-02-19 中材天山(云浮)水泥有限公司 Method for preventing roller skin of vertical mill from cracking
CN115194403B (en) * 2022-08-03 2024-04-19 中车戚墅堰机车有限公司 Repairing method for large motor base

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT344771B (en) * 1975-12-01 1978-08-10 Plasser Bahnbaumasch Franz MOBILE RAIL GRINDING MACHINE
DD283706A7 (en) * 1988-12-19 1990-10-24 Veb Schwermaschinenbau "Karl Liebknecht" Magdeburg,Dd DEVICE FOR REPAIRING CYLINDER BLOCKS
US4996757A (en) * 1990-01-16 1991-03-05 Parham Robert L Method of repairing a one-piece roller assembly
DE4402958C2 (en) * 1994-02-01 1996-02-15 Smr De Haan Gmbh Procedure for repairing the mounting surfaces of wear plates on the stand of a rolling stand
DE19805137A1 (en) * 1998-02-09 1999-08-12 Krupp Polysius Ag Roller mill
AU2003903620A0 (en) * 2003-07-11 2003-07-31 Technological Resources Pty Ltd Repairing crusher rolls
DE102005004036B4 (en) * 2005-01-27 2006-11-16 E.On Wasserkraft Gmbh Device and method for the mechanical processing of a rotationally symmetrical sealing surface of a Kaplan turbine
DE102006028546A1 (en) 2006-06-21 2007-12-27 Polysius Ag Process for reprocessing a used grinding roller
DE102007012102A1 (en) * 2007-03-13 2008-09-18 Polysius Ag Process for reprocessing a used grinding roller
DE102007018090A1 (en) 2007-04-17 2008-10-23 Polysius Ag Grinding roller and process for reprocessing

Also Published As

Publication number Publication date
WO2011107538A1 (en) 2011-09-09
DE102010010431B4 (en) 2012-04-05
US8728569B2 (en) 2014-05-20
DK2385879T3 (en) 2014-01-20
DE102010010431A1 (en) 2011-09-08
MX2012010234A (en) 2012-10-09
EP2385879A1 (en) 2011-11-16
CA2791405A1 (en) 2011-09-09
CA2791405C (en) 2017-12-05
US20120315385A1 (en) 2012-12-13

Similar Documents

Publication Publication Date Title
EP1807243B1 (en) Method for machining rotation pieces
DE3101924C2 (en) Process for machining the bearing and lifting surfaces of crankshafts and camshafts by circumferential milling using a disc milling cutter
EP2496382B1 (en) Method for grinding the main and pin bearings of a crankshaft by means of external cylindrical grinding and grinding machine for performing said method
EP2708324B1 (en) Table top for the spring support table of a spring end grinding machine and spring end grinding machine with the same
DD149781A1 (en) DEVICE FOR TOOL MACHINES
EP1840268A1 (en) Mill cylinder for construction machinery, construction machinery and a drive unit for a mill cylinder
EP2569119B1 (en) Method for machining a cylinder bore by means of a geometrically defined cutter and a geometrically undefined cutter
EP2385879B1 (en) Method for reconditioning of the worn surface of grinding rollers of a material bed roller mill
DE3104752A1 (en) Method of cooling a milling tool, in particular at its cutting edges, and milling tool suitable for this method
DE102012108163B4 (en) Process for the production of large mill cylinders
EP2280793A1 (en) Bush widening apparatus and process for forging a bush blank
DE102007060586A1 (en) Device for processing profiles
DE2204328C3 (en) Underfloor wheelset profile lathe
DE102018001106A1 (en) Method and device for machining a gear
DE112009001393B4 (en) Rolling machine for forming metallic and / or iron-containing workpieces and method for changing the rollers or the rolling tools of the rolling machine
DE10212256A1 (en) Tool for producing tooth profiles is in more than one part and includes base body fixable to carriage of cold-rolling machine, and working body attachable to base body
DE2036093C3 (en) Process and underfloor lathe for the renewal of run-out of expired wheel sets of railway vehicles
EP0828572B1 (en) Process for producing annular work pieces from metal with a profiled cross-section and a rolling facility for carrying out the method
DE3907730C2 (en)
EP1201349B1 (en) Device for feeding or carrying away wheel sets in a wheel set press
DE9109904U1 (en) Machine for machining a wheel set driven by friction rollers
CH379236A (en) Electric resistance butt welding machine
DE102013114516B4 (en) Grinding roller and device for processing a grinding roller
DE1552998C (en) Assembly and welding equipment
DE102008027964A1 (en) Rolling machine for forming workpieces with adjustable rollers

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

Effective date: 20110707

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: THYSSENKRUPP RESOURCE TECHNOLOGIES GMBH

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20130717

INTG Intention to grant announced

Effective date: 20130725

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 638298

Country of ref document: AT

Kind code of ref document: T

Effective date: 20131115

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502011001568

Country of ref document: DE

Effective date: 20131224

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20140117

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20131030

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131030

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140130

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131030

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131030

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131030

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131030

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140228

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 20140319

Year of fee payment: 4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131030

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131030

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131030

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131030

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140228

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 502011001568

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502011001568

Country of ref document: DE

Representative=s name: TETZNER & PARTNER MBB PATENT- UND RECHTSANWAEL, DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131030

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: THYSSENKRUPP INDUSTRIAL SOLUTIONS AG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131030

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131030

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131030

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131030

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131030

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20140416

Year of fee payment: 4

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: KHD HUMBOLDT WEDAG GMBH

Effective date: 20140726

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502011001568

Country of ref document: DE

Representative=s name: TETZNER & PARTNER MBB PATENT- UND RECHTSANWAEL, DE

Effective date: 20140729

Ref country code: DE

Ref legal event code: R081

Ref document number: 502011001568

Country of ref document: DE

Owner name: THYSSENKRUPP INDUSTRIAL SOLUTIONS AG, DE

Free format text: FORMER OWNER: THYSSENKRUPP RESOURCE TECHNOLOGIES GMBH, 59269 BECKUM, DE

Effective date: 20140729

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 502011001568

Country of ref document: DE

Effective date: 20140726

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140303

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20141128

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140303

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140331

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140331

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131030

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502011001568

Country of ref document: DE

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

Effective date: 20150331

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20150303

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151001

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150303

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131030

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150331

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131030

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131030

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131030

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20110303

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131030

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140331

PLBD Termination of opposition procedure: decision despatched

Free format text: ORIGINAL CODE: EPIDOSNOPC1

REG Reference to a national code

Ref country code: DE

Ref legal event code: R100

Ref document number: 502011001568

Country of ref document: DE

PLBM Termination of opposition procedure: date of legal effect published

Free format text: ORIGINAL CODE: 0009276

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION PROCEDURE CLOSED

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 638298

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160303

27C Opposition proceedings terminated

Effective date: 20170204

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION PROCEDURE CLOSED

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160303

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131030

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131030