EP2734304A2 - Roller mill and method for operating a roller mill - Google Patents

Roller mill and method for operating a roller mill

Info

Publication number
EP2734304A2
EP2734304A2 EP13700910.6A EP13700910A EP2734304A2 EP 2734304 A2 EP2734304 A2 EP 2734304A2 EP 13700910 A EP13700910 A EP 13700910A EP 2734304 A2 EP2734304 A2 EP 2734304A2
Authority
EP
European Patent Office
Prior art keywords
grinding
water
roller
ground
lance
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.)
Granted
Application number
EP13700910.6A
Other languages
German (de)
French (fr)
Other versions
EP2734304B1 (en
Inventor
Björn Olaf ASSMANN
Jörg PETRING
Guido Kache
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=47598842&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2734304(A2) "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 EP2734304A2 publication Critical patent/EP2734304A2/en
Application granted granted Critical
Publication of EP2734304B1 publication Critical patent/EP2734304B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/007—Mills with rollers pressed against a rotary horizontal disc
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/04—Mills with pressed pendularly-mounted rollers, e.g. spring pressed

Definitions

  • the invention relates to a roller mill for grinding regrind with a grinding table and at least one co-rotating with the grinding table grinding roller and a method for operating such a roller mill.
  • the ground material is usually given up centrally and gets through
  • the volume flow of the sprayed-on water is regulated as a function of a vibration sensor. If a certain vibration level is exceeded, the injected water volume flow is increased and vice versa.
  • the invention is therefore based on the object to make the task of water on the grinding bed even more efficient, on the one hand to positively influence the smoothness of the roller mill and to optimize the efficiency of grinding and throughput of the roller mill and on the other hand to get along with the smallest possible water flow rates.
  • the roller mill according to the invention for grinding regrind has a grinding plate and at least one co-rotating with the grinding plate grinding roller, wherein a water lance for applying water to the material to be ground in the direction of rotation of the grinding plate is arranged in front of the grinding roller.
  • the water lance is rotatably formed and there are provided means for rotating the water lance to selectively influence the exposure time of the water on the ground material before the ground material is detected by the grinding roller.
  • a grinding plate and at least one grinding roller cooperating with the grinding plate are provided. Furthermore, water is applied to the ground material via a water lance arranged in the direction of rotation of the grinding table in front of the grinding roller.
  • the action time of the water on the material to be ground before the grinding roller detects the material to be ground is influenced by the fact that the distance between the impact of the water on the material to be ground and the detection of the material to be ground by the grinding roller is adjusted by rotation of the water lance.
  • the water lance expediently has a plurality of nozzles with nozzle axes aligned in the direction of the grinding plate in order to cover the entire width of the grinding material flow to be detected by the grinding roller.
  • the means for rotating the water lance are preferably designed such that the distance between the impact of the water on the ground material and the detection of the ground material through the grinding roller by a rotation of the water lance is variable.
  • a grinding path is formed in the active region of the grinding roller, wherein the water lance expediently extends transversely to this grinding path and thus radially to the grinding table.
  • the water lance is additionally arranged to be displaceable in the direction of its longitudinal extent. In this way, a further adaptation and alignment of the water jets is possible.
  • the lance can be pulled out of the grinding chamber in the maintenance and / or repair case in this way. If this is possible during operation, the grinding process does not have to be interrupted.
  • the rotation of the water lance is expediently carried out as a function of at least one operating parameter (eg fluctuations in the power consumption of the drive, fluctuations in the hydraulic pressure, grinding bed height, theoretical rolling points of the grinding rollers).
  • at least one operating parameter eg fluctuations in the power consumption of the drive, fluctuations in the hydraulic pressure, grinding bed height, theoretical rolling points of the grinding rollers.
  • Fig. 1 a schematic side view of a roller mill with
  • FIG. 2 is a schematic plan view of the roller mill of FIG. 1,
  • 4a + 4b a schematic plan view and side view of the roller mill in the region of the water lance according to a first operating situation
  • 5a + 5b a schematic plan view and side view of the roller mill in the region of the water lance according to a second operating situation
  • 6a + 6b a schematic plan view and side view of the roller mill in the region of the water lance according to a third operating situation.
  • the roller mill shown in FIGS. 1 and 2 essentially has a grinding table 1 and two grinding rollers 2 cooperating with the grinding table.
  • each grinding roller 2 is associated with a water lance 3, which is arranged in the direction of rotation of the grinding table 1 before each grinding roller 2.
  • the grinding roller 2 and the grinding table 1 are arranged in a limited by a mill housing 5 grinding chamber.
  • the water lance 3 shown in more detail in Fig. 3 is formed here as an elongated pipe section, which has on the grinding table 1 side facing a plurality of nozzles 3a.
  • the water lance 3 supplied water 6 is sprayed in the form of the nozzles 3 a exiting water jets 6 a on the grinding table 1 supplied millbase 7.
  • the water lance is rotatable via means 9 in accordance with the double arrow 8 (FIG.
  • the nozzles 3 a of the water lance 3 can take in particular the position shown in Fig. 4b, 5b and 6b with respect to the grinding table 1 and the associated grinding roller 2.
  • the water lance is also slidably disposed in the direction of its longitudinal extent according to the double arrow 10 and can be pulled out in particular from the mill housing 5, for example for maintenance or repair purposes.
  • the adjustment according to the double arrows 8 and 10 can be done in particular during the ongoing grinding operation.
  • the material to be ground 7 is usually placed centrally on the grinding table 1, and then moves due to the centrifugal force according to the dashed arrows 11 to the outside, where it comes in the region of the grinding path 12 on which the grinding rollers 2 roll on the grinding table 1.
  • the location and direction with which the material to be ground 7 in the The area of the grinding path is different, as shown schematically in FIGS. 4a, 5a and 6a for three different situations.
  • this distance ai is the shortest and in the position according to FIGS. 6a and 6b (distance a 2 ) the longest, while FIGS. 4a and 4b show a mean distance a.3.
  • Operating conditions of the roller mill can be adjusted.
  • the reaction time of the water in the ground material 7 to the detection of the grinding roller 2 can be selectively influenced and the water injection is focused on a localized area.
  • the necessary volume flow for stabilizing the grinding bed can be minimized, since an alignment of the injected water volume flow can be made to the most effective range.
  • the means 9 are set for turning to rotate and / or radial displacement of the water lance 3 as a function of at least one operating parameter.
  • operating parameters for example, the fluctuation of the power consumption of the drives for the grinding table 1 and / or the grinding rollers 2, fluctuations in the hydraulic contact pressure of the grinding rollers 2, the Mahlbettière or the theoretical rolling point of the grinding rollers 2 can be used.
  • the rotatable water lance for water injection described above is particularly suitable for roller mills with changing grinding materials or

Landscapes

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

Abstract

The roller mill according to the invention for grinding milling material has a grinding table and at least one grinding roller which interacts with the grinding table, wherein a water lance for applying water to the milling material is arranged in front of the grinding roller in the rotational direction of the grinding table. The water lance is of rotatable configuration and means for rotating the water lance are provided, in order to influence the action time of the water on the milling material in a targeted manner before the milling material is captured by the grinding roller.

Description

Rollenmühle und Verfahren zum Betreiben einer Rollenmühle  Roller mill and method of operating a roller mill
Die Erfindung betrifft eine Rollenmühle zum Mahlen von Mahlgut mit einem Mahlteller und wenigstens einer mit dem Mahlteller zusammenwirkenden Mahlrolle sowie ein Verfahren zum Betreiben einer solchen Rollenmühle. Bei Rollenmühlen wird das Mahlgut meist zentral aufgegeben und gelangt durchThe invention relates to a roller mill for grinding regrind with a grinding table and at least one co-rotating with the grinding table grinding roller and a method for operating such a roller mill. In roller mills, the ground material is usually given up centrally and gets through
Fliehkraft nach außen und wird dort von den auf dem Mahlteller abrollenden Mahlrollen erfasst. Aus der EP 0 858 839 AI ist es bereits bekannt, dass eine Befeuchtung des Mahlgutes eine Stabilisierung des Mahlbettes bewirkt und auf diese Weise die Laufruhe der Rollenmühle sowie die Effizienz der Mahlung verbessert werden kann. Es ist bekannt, das Wasser zusammen mit dem Mahlgut oder direkt amCentrifugal force to the outside and is detected there by rolling on the grinding table grinding rollers. It is already known from EP 0 858 839 A1 that moistening the ground material causes stabilization of the grinding bed and in this way the smooth running of the roller mill and the efficiency of the grinding can be improved. It is known that the water together with the ground material or directly on
Aufgabepunkt auf den Mahlteller zuzuführen. In der EP 0 858 839 AI wird eine Wasserlanze verwendet, die in Drehrichtung des Mahltellers vor der Mahlrolle angeordnet ist. Feed delivery point to the grinding table. In EP 0 858 839 A1 a water lance is used, which is arranged in the direction of rotation of the grinding table in front of the grinding roller.
Allerdings hat man festgestellt, dass die Produktqualität durch zu hohe eingespritzte Wasservolumenströme negativ beeinflusst wird. Außerdem kann die Verfügbarkeit von Wasser regional begrenzt sein. However, it has been found that product quality is negatively affected by excessive injected water flow rates. In addition, the availability of water may be regionally limited.
In der JP 2000157882 A wird daher der Volumenstrom des aufgespritzten Wassers in Abhängigkeit eines Vibrationssensors geregelt. Wird ein bestimmtes Schwingungsniveau überschritten, wird der eingespritzte Wasservolumenstrom erhöht und umgekehrt. In JP 2000157882 A, therefore, the volume flow of the sprayed-on water is regulated as a function of a vibration sensor. If a certain vibration level is exceeded, the injected water volume flow is increased and vice versa.
Der Erfindung liegt daher die Aufgabe zugrunde, die Aufgabe des Wassers auf das Mahlbett noch effizienter zu gestalten, um einerseits die Laufruhe der Rollenmühle positiv zu beeinflussen sowie die Effizienz der Mahlung und den Durchsatz der Rollenmühle zu optimieren und andererseits mit möglichst kleinen Wasservolumenströmen auszukommen. The invention is therefore based on the object to make the task of water on the grinding bed even more efficient, on the one hand to positively influence the smoothness of the roller mill and to optimize the efficiency of grinding and throughput of the roller mill and on the other hand to get along with the smallest possible water flow rates.
Erfindungsgemäß wird diese Aufgabe durch die Merkmale der Ansprüche 1 und 6 gelöst. Die erfindungsgemäß Rollenmühle zur Mahlung von Mahlgut weist einen Mahlteller und wenigstens eine mit dem Mahlteller zusammenwirkende Mahlrolle auf, wobei eine Wasserlanze zum Aufbringen von Wasser auf das Mahlgut in Drehrichtung des Mahltellers vor der Mahlrolle angeordnet ist. Die Wasserlanze ist dabei drehbar ausgebildet und es sind Mittel zum Drehen der Wasserlanze vorgesehen, um die Einwirkzeit des Wassers auf dem Mahlgut, bevor das Mahlgut von der Mahlrolle erfasst wird, gezielt zu beeinflussen. According to the invention this object is solved by the features of claims 1 and 6. The roller mill according to the invention for grinding regrind has a grinding plate and at least one co-rotating with the grinding plate grinding roller, wherein a water lance for applying water to the material to be ground in the direction of rotation of the grinding plate is arranged in front of the grinding roller. The water lance is rotatably formed and there are provided means for rotating the water lance to selectively influence the exposure time of the water on the ground material before the ground material is detected by the grinding roller.
Beim erfindungsgemäßen Verfahren zum Betreiben einer Rollenmühle wird ein Mahlteller und wenigstens einer mit dem Mahlteller zusammenwirkende Mahlrolle bereitgestellt. Weiterhin wird über eine in Drehrichtung des Mahltellers vor der Mahlrolle angeordnete Wasserlanze Wasser auf das Mahlgut aufgebracht. Die Einwirkzeit des Wassers auf dem Mahlgut, bevor die Mahlrolle das Mahlgut erfasst, wird dadurch beeinflusst, dass der Abstand zwischen dem Auftreffen des Wassers auf das Mahlgut und dem Erfassen des Mahlguts durch die Mahlrolle durch Drehung der Wasserlanze gezielt eingestellt wird. In the method according to the invention for operating a roller mill, a grinding plate and at least one grinding roller cooperating with the grinding plate are provided. Furthermore, water is applied to the ground material via a water lance arranged in the direction of rotation of the grinding table in front of the grinding roller. The action time of the water on the material to be ground before the grinding roller detects the material to be ground is influenced by the fact that the distance between the impact of the water on the material to be ground and the detection of the material to be ground by the grinding roller is adjusted by rotation of the water lance.
Bei den der Erfindung zugrundeliegenden Versuchen hat sich herausgestellt, dass die Einwirkzeit des Wassers im Mahlgut, bevor das Mahlgut von der Mahlrolle erfasst wird, einen großen Einfluss auf die Laufruhe hat. Weiterhin wurde festgestellt, dass der Mahlgutstrom je nach Beschaffenheit des Mahlguts sehr unterschiedlich vom Zentrum durch Fliehkraft zur Mahlbahn gelangt. Um nun die aufzuspritzende Wassermenge möglich effektiv auf das Mahlgut aufzubringen, wird erfindungsgemäß das Drehen der Wasserlanze vorgeschlagen. Auf diese Weise kann der Abstand der auf das Mahlgut auftreffenden Wasserstrahlen von der Mahlrolle gezielt auf die jeweils vorherrschenden Verhältnisse eingestellt werden. In the experiments on which the invention is based, it has been found that the action time of the water in the millbase, before the millbase is detected by the mill roller, has a great influence on the smooth running. Furthermore, it was found that the grinding material flow, depending on the nature of the material to be ground very different from the center by centrifugal force reaches the grinding path. In order to effectively apply the amount of water to be sprayed effectively to the material to be ground, according to the invention, the turning of the water lance is proposed. In this way, the distance of the impinging on the ground material water jets can be adjusted by the grinding roller targeted to the prevailing conditions.
Weitere Ausgestaltungen der Erfindung sind Gegenstand der Unter anspräche. Further embodiments of the invention are the subject of the subclaims.
Die Wasserlanze weist zweckmäßigerweise mehrere Düsen mit in Richtung des Mahltellers ausgerichteten Düsenachsen auf, um die gesamte Breite des von der Mahlrolle zu erfassenden Mahlgutstromes abzudecken. Zur Beeinflussung der Einwirkzeit des Wassers auf dem Mahlgut sind die Mittel zum Drehen der Wasserlanze vorzugsweise derart ausgebildet, dass der Abstand zwischen dem Auftreffen des Wassers auf dem Mahlgut und dem Erfassen des Mahlguts durch die Mahlrolle durch eine Drehung der Wasserlanze veränderbar ist. Auf dem Mahlteller ist im Wirkbereich der Mahlrolle eine Mahlbahn ausgebildet, wobei sich die Wasserlanze zweckmäßigerweise quer zu dieser Mahlbahn und somit radial zum Mahlteller erstreckt. Des Weiteren kann vorgesehen werden, dass die Wasserlanze zusätzlich in Richtung ihrer Längserstreckung verschiebbar angeordnet ist. Auf diese Weise ist eine weitere Anpassung und Ausrichtung der Wasserstrahlen möglich. Außerdem kann die Lanze auf diese Weise aus dem Mahlraum im Wartungsund/oder Reparaturfall herausgezogen werden. Wenn dies im laufenden Betrieb möglich ist, muss dabei der Mahlvorgang nicht unterbrochen werden. The water lance expediently has a plurality of nozzles with nozzle axes aligned in the direction of the grinding plate in order to cover the entire width of the grinding material flow to be detected by the grinding roller. To influence the contact time of the water on the ground material, the means for rotating the water lance are preferably designed such that the distance between the impact of the water on the ground material and the detection of the ground material through the grinding roller by a rotation of the water lance is variable. On the grinding table, a grinding path is formed in the active region of the grinding roller, wherein the water lance expediently extends transversely to this grinding path and thus radially to the grinding table. Furthermore, it can be provided that the water lance is additionally arranged to be displaceable in the direction of its longitudinal extent. In this way, a further adaptation and alignment of the water jets is possible. In addition, the lance can be pulled out of the grinding chamber in the maintenance and / or repair case in this way. If this is possible during operation, the grinding process does not have to be interrupted.
Die Drehung der Wasserlanze erfolgt zweckmäßigerweise in Abhängigkeit wenigstens eines Betriebsparameters (z. B. Schwankungen der Leistungsaufnahme des Antriebs, Schwankungen im hydraulischen Druck, Mahlbetthöhe, theoretische Abrollpunkte der Mahlrollen). The rotation of the water lance is expediently carried out as a function of at least one operating parameter (eg fluctuations in the power consumption of the drive, fluctuations in the hydraulic pressure, grinding bed height, theoretical rolling points of the grinding rollers).
Weitere Ausgestaltungen der Erfindung werden im Folgenden anhand der Beschreibung und der Zeichnung näher erläutert. Further embodiments of the invention are explained in more detail below with reference to the description and the drawing.
In der Zeichnung zeigen In the drawing show
Fig. 1 : eine schematische Seitenansicht einer Rollenmühle mit Fig. 1: a schematic side view of a roller mill with
Wasserlanze,  Water lance,
Fig. 2: eine schematische Aufsicht der Rollenmühle gemäß Fig. 1, 2 is a schematic plan view of the roller mill of FIG. 1,
Fig. 3: eine Seitenansicht der Wasserlanze, 3 shows a side view of the water lance,
Fig. 4a + 4b: eine schematische Draufsicht bzw. Seitenansicht der Rollenmühle im Bereich der Wasserlanze gemäß einer ersten Betriebssituation, Fig. 5a + 5b: eine schematische Draufsicht bzw. Seitenansicht der Rollenmühle im Bereich der Wasserlanze gemäß einer zweiten Betriebssituation, 4a + 4b: a schematic plan view and side view of the roller mill in the region of the water lance according to a first operating situation, 5a + 5b: a schematic plan view and side view of the roller mill in the region of the water lance according to a second operating situation,
Fig. 6a + 6b: eine schematische Draufsicht bzw. Seitenansicht der Rollenmühle im Bereich der Wasserlanze gemäß einer dritten Betriebssituation. 6a + 6b: a schematic plan view and side view of the roller mill in the region of the water lance according to a third operating situation.
Die in Fig. 1 und 2 dargestellte Rollenmühle weist im Wesentlichen einen Mahlteller 1 und zwei mit dem Mahlteller zusammenwirkende Mahlrollen 2 auf. The roller mill shown in FIGS. 1 and 2 essentially has a grinding table 1 and two grinding rollers 2 cooperating with the grinding table.
Weiterhin ist jeder Mahlrolle 2 eine Wasserlanze 3 zugeordnet, die in Drehrichtung des Mahltellers 1 vor jeder Mahlrolle 2 angeordnet ist. Die Mahlrolle 2 und der Mahlteller 1 sind in einem durch ein Mühlengehäuse 5 begrenzten Mahlraum angeordnet. Furthermore, each grinding roller 2 is associated with a water lance 3, which is arranged in the direction of rotation of the grinding table 1 before each grinding roller 2. The grinding roller 2 and the grinding table 1 are arranged in a limited by a mill housing 5 grinding chamber.
Die in Fig. 3 näher dargestellte Wasserlanze 3 ist hier als längliches Rohrstück ausgebildet, das auf der dem Mahlteller 1 zugewandten Seite eine Vielzahl von Düsen 3 a aufweist. Das der Wasserlanze 3 zugeführte Wasser 6 wird in Form von aus den Düsen 3 a austretenden Wasserstrahlen 6a auf das den Mahlteller 1 zugeführte Mahlgut 7 gespritzt. Die Wasserlanze ist gemäß dem Doppelpfeil 8 (Fig. 1) über Mittel 9 drehbar. Die Düsen 3 a der Wasserlanze 3 können dabei insbesondere die in Fig. 4b, 5b und 6b dargestellte Position in Bezug auf den Mahlteller 1 und die zugeordnete Mahlrolle 2 einnehmen. Neben der Drehbeweglichkeit gemäß Doppelpfeil 8 ist die Wasserlanze zudem in Richtung ihrer Längserstreckung gemäß dem Doppelpfeil 10 verschiebbar angeordnet und kann dadurch insbesondere auch aus dem Mühlengehäuse 5, beispielsweise zur Wartung oder Reparaturzwecken, herausgezogen werden. Die Verstellung gemäß den Doppelpfeilen 8 und 10 kann dabei insbesondere während des laufenden Mahlbetriebes erfolgen. The water lance 3 shown in more detail in Fig. 3 is formed here as an elongated pipe section, which has on the grinding table 1 side facing a plurality of nozzles 3a. The water lance 3 supplied water 6 is sprayed in the form of the nozzles 3 a exiting water jets 6 a on the grinding table 1 supplied millbase 7. The water lance is rotatable via means 9 in accordance with the double arrow 8 (FIG. The nozzles 3 a of the water lance 3 can take in particular the position shown in Fig. 4b, 5b and 6b with respect to the grinding table 1 and the associated grinding roller 2. In addition to the rotational mobility according to double arrow 8, the water lance is also slidably disposed in the direction of its longitudinal extent according to the double arrow 10 and can be pulled out in particular from the mill housing 5, for example for maintenance or repair purposes. The adjustment according to the double arrows 8 and 10 can be done in particular during the ongoing grinding operation.
Das Mahlgut 7 wird üblicherweise zentral auf den Mahlteller 1 aufgegeben, und bewegt sich dann aufgrund der Fliehkraft gemäß den gestrichelten Pfeilen 11 nach außen, wo es in den Bereich der Mahlbahn 12 kommt, auf der die Mahlrollen 2 auf dem Mahlteller 1 abrollen. Je nach Drehgeschwindigkeit des Mahltellers 1 und der Beschaffenheit des Mahlgutes 7 sind Ort und Richtung, mit der das Mahlgut 7 in den Bereich der Mahlbahn gelangt unterschiedlich, wie das in den Fig. 4a, 5a und 6a für drei unterschiedliche Situationen schematisch dargestellt ist. Durch eine Drehung der Wasserlanze gemäß dem Doppelpfeil 8 kann der Abstand zwischen dem Auftreffen der Wasserstrahlen 6a auf dem Mahlgut und dem Erfassen des Mahlgutes durch die Mahlrolle verändert werden. In der Stellung gemäß Fig. 5a und 5b ist dieser Abstand ai am kürzesten und in der Stellung gemäß Fig. 6a und 6b (Abstand a2) am längsten, während der Fig. 4a und 4b einen mittleren Abstand a.3 zeigen. Durch die radial verschiebbare und axial drehbare Wasserlanze 3 kann der Auftreffbereich der Wasserstrahlen 6a auf das Mahlgut 7 gezielt beeinflusst werden. Auf diese Weise kann die Wassereinspritzung optimal auf die gerade vorliegendenThe material to be ground 7 is usually placed centrally on the grinding table 1, and then moves due to the centrifugal force according to the dashed arrows 11 to the outside, where it comes in the region of the grinding path 12 on which the grinding rollers 2 roll on the grinding table 1. Depending on the rotational speed of the grinding table 1 and the nature of the material to be ground 7 are the location and direction with which the material to be ground 7 in the The area of the grinding path is different, as shown schematically in FIGS. 4a, 5a and 6a for three different situations. By a rotation of the water lance according to the double arrow 8, the distance between the impact of the water jets 6a on the material to be ground and the detection of the ground material can be changed by the grinding roller. In the position according to FIGS. 5a and 5b, this distance ai is the shortest and in the position according to FIGS. 6a and 6b (distance a 2 ) the longest, while FIGS. 4a and 4b show a mean distance a.3. By means of the radially displaceable and axially rotatable water lance 3, the impact area of the water jets 6a on the ground material 7 can be influenced in a targeted manner. In this way, the water injection can optimally on the currently present
Betriebsbedingungen der Rollenmühle eingestellt werden. Die Einwirkzeit des Wassers in das Mahlgut 7 bis zum Erfassen von der Mahlrolle 2 kann gezielt beeinflusst werden und die Wassereinspritzung wird auf einen lokal begrenzten Bereich fokussiert. Infolgedessen kann der notwendige Volumenstrom zur Stabilisierung des Mahlbettes minimiert werden, da eine Ausrichtung des eingespritzten Wasservolumenstroms auf den wirksamsten Bereich erfolgen kann. Operating conditions of the roller mill can be adjusted. The reaction time of the water in the ground material 7 to the detection of the grinding roller 2 can be selectively influenced and the water injection is focused on a localized area. As a result, the necessary volume flow for stabilizing the grinding bed can be minimized, since an alignment of the injected water volume flow can be made to the most effective range.
Gemäß einer besonders vorteilhaften Ausgestaltung der Erfindung werden die Mittel 9 zum Drehen zum Drehen und/oder radialen Verschieben der Wasserlanze 3 in Abhängigkeit wenigstens eines Betriebsparameters eingestellt. Als Betriebsparameter können dabei beispielsweise die Schwankung der Leistungsaufnahme der Antriebe für den Mahlteller 1 und/oder der Mahlrollen 2, Schwankungen im hydraulischen Anpressdruck der Mahlrollen 2, die Mahlbetthöhe oder der theoretische Abrollpunkt der Mahlrollen 2 verwendet werden. According to a particularly advantageous embodiment of the invention, the means 9 are set for turning to rotate and / or radial displacement of the water lance 3 as a function of at least one operating parameter. As operating parameters, for example, the fluctuation of the power consumption of the drives for the grinding table 1 and / or the grinding rollers 2, fluctuations in the hydraulic contact pressure of the grinding rollers 2, the Mahlbetthöhe or the theoretical rolling point of the grinding rollers 2 can be used.
Die oben beschriebene drehbare Wasserlanze zur Wassereinspritzung bietet sich besonders für Rollenmühlen mit wechselnden Mahlgütern bzw.The rotatable water lance for water injection described above is particularly suitable for roller mills with changing grinding materials or
Mahlguteigenschaften an. Grind properties.

Claims

Patentansprüche claims
1. Rollenmühle zum Mahlen von Mahlgut (7) mit einem Mahlteller (1) und wenigstens einer mit dem Mahlteller (1) zusammenwirkenden Mahlrolle (2), wobei eine Wasserlanze (3) zum Aufbringen von Wasser (6) auf das Mahlgut (7) in Drehrichtung (4) des Mahltellers (1) vor der Mahlrolle (2) angeordnet ist, dadurch gekennzeichnet, dass die Wasserlanze (3) drehbar ausgebildet ist und Mittel (9) zum Drehen der Wasserlanze vorgesehen sind, um die Einwirkzeit des Wassers auf dem Mahlgut, bevor das Mahlgut von der Mahlrolle erfasst wird, gezielt zu beeinflussen. 1. Roller mill for grinding regrind (7) with a grinding plate (1) and at least one with the grinding table (1) cooperating grinding roller (2), wherein a water lance (3) for applying water (6) to the material to be ground (7) in the direction of rotation (4) of the grinding table (1) in front of the grinding roller (2) is arranged, characterized in that the water lance (3) is rotatable and means (9) are provided for rotating the water lance to the contact time of the water on the Regrind, before the regrind is detected by the grinding roller to influence targeted.
2. Rollenmühle nach Anspruch 1, dadurch gekennzeichnet, dass die Wasserlanze (3) mehrere Düsen (3a) mit in Richtung des Mahltellers (1) ausgerichteten Düsenachsen aufweist. 2. Roller mill according to claim 1, characterized in that the water lance (3) has a plurality of nozzles (3a) in the direction of the grinding table (1) aligned nozzle axes.
3. Rollenmühle nach Anspruch 2, dadurch gekennzeichnet, dass zur Beeinflussung der Einwirkzeit des Wassers (6) auf dem Mahlgut (7) die Wasserlanze (3) und die Mittel (9) zum Drehen der Wasserlanze (3) derart ausgebildet sind, dass der Abstand (al s a2, a3) zwischen dem Auftreffen des Wassers (6) auf dem Mahlgut (7) und dem Erfassen des Mahlguts durch die Mahlrolle (2) durch eine Drehung der Wasserlanze (3) veränderbar ist. 3. Roller mill according to claim 2, characterized in that for influencing the contact time of the water (6) on the ground material (7), the water lance (3) and the means (9) for rotating the water lance (3) are designed such that Distance (a ls a 2 , a 3 ) between the impact of the water (6) on the ground material (7) and the detection of the ground material by the grinding roller (2) by a rotation of the water lance (3) is variable.
4. Rollenmühle nach Anspruch 1, dadurch gekennzeichnet, dass auf dem Mahlteller im Wirkbereich der Mahlrollen (2) eine Mahlbahn (12) ausgebildet ist und die Wasserlanze (3) sich quer zur Mahlbahn (12) erstreckt. 4. Roller mill according to claim 1, characterized in that on the grinding plate in the active region of the grinding rollers (2) a grinding path (12) is formed and the water lance (3) extends transversely to the grinding path (12).
5. Rollenmühle nach Anspruch 1, dadurch gekennzeichnet, dass die Wasserlanze (3) außerdem in Richtung ihrer Längsersteckung verschiebbar angeordnet ist. 5. Roller mill according to claim 1, characterized in that the water lance (3) is also arranged displaceably in the direction of its longitudinal extent.
6. Verfahren zum Betreiben einer Rollenmühle, wobei a. ein Mahlteller (1) und wenigstens eine mit dem Mahlteller (1) zusammenwirkende Mahlrolle (2) bereitgestellt werden und b. über eine in Drehrichtung (4) des Mahltellers (1) vor der Mahlrolle (2) angeordnete Wasserlanze (3) Wasser (6) auf das Mahlgut (7) aufgebracht wird, dadurch gekennzeichnet, dass die Einwirkzeit des Wassers auf dem Mahlgut, bevor das Mahlgut von der Mahlrolle erfasst wird, dadurch beeinflusst wird, dass der Abstand (al s a2, a3) zwischen dem Auftreffen des Wassers (6) auf das Mahlgut (7) und dem Erfassen des Mahlguts (7) durch die Mahlrolle (2) durch eine Drehung der Wasserlanze (3) gezielt eingestellt wird. 6. A method for operating a roller mill, wherein a. a grinding plate (1) and at least one with the grinding table (1) cooperating grinding roller (2) are provided and b. Water (6) is applied to the material to be ground (7) via a water lance (3) arranged in the direction of rotation (4) of the grinding table (1) in front of the grinding roller (2), characterized in that the action time of the water on the material to be ground before the Grinding material is detected by the grinding roller is influenced by the fact that the distance (a ls a 2 , a 3 ) between the impact of the water (6) on the material to be ground (7) and the detection of the material to be ground (7) by the grinding roller (2 ) is selectively adjusted by rotation of the water lance (3).
7. Verfahren zum Betreiben einer Rollenmühle nach Anspruch 6, dadurch gekennzeichnet, dass der Abstand (al s a2, a3) zwischen dem Auftreffen des Wassers (6) auf dem Mahlgut (7) vom Erfassungspunkt des Mahlguts durch die Mahlrolle (2) in Abhängigkeit wenigstens eines Betriebsparameters über die Drehung der Wasserlanze (3) eingestellt wird. 7. A method for operating a roller mill according to claim 6, characterized in that the distance (a ls a 2 , a 3 ) between the impingement of the water (6) on the material to be ground (7) from the detection point of the ground material through the grinding roller (2) is adjusted in response to at least one operating parameter via the rotation of the water lance (3).
8. Verfahren zum Betreiben einer Rollenmühle nach Anspruch 6, dadurch gekennzeichnet, dass ein Drehung der Wasserlanze (3) während des laufenden Mühlenbetriebs in Abhängigkeit wenigstens eines Betriebsparameters erfolgt. 8. A method for operating a roller mill according to claim 6, characterized in that a rotation of the water lance (3) during the ongoing mill operation in response to at least one operating parameter.
9. Verfahren zum Betreiben einer Rollenmühle nach Anspruch 6, dadurch gekennzeichnet, dass die Mahlrolle (2) und der Mahltisch (1) in einem Mahlraum angeordnet sind und die Wasserlanze (3) in einem die Wasserlanze (3) betreffenden Wartungs- und/oder Reparaturfall während des laufenden Mühlenbetriebs aus dem Mahlraum herausgezogen wird. 9. A method for operating a roller mill according to claim 6, characterized in that the grinding roller (2) and the grinding table (1) are arranged in a grinding chamber and the water lance (3) in a water lance (3) maintenance and / or Repair case is pulled out of the grinding chamber during ongoing mill operation.
10. Verfahren zum Betreiben einer Rollenmühle nach Anspruch 6, dadurch gekennzeichnet, dass wenigstens zwei Mahlrollen (2) mit zugeordneten Wasserlanzen (3) zum Einsatz kommen, wobei die beiden Wasserlanzen (3) unabhängig von einander eingestellt werden. 10. A method for operating a roller mill according to claim 6, characterized in that at least two grinding rollers (2) with associated water lances (3) are used, wherein the two water lances (3) are set independently of each other.
EP13700910.6A 2012-02-06 2013-01-22 Roller mill and method for operating a roller mill Not-in-force EP2734304B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012100946.5A DE102012100946B4 (en) 2012-02-06 2012-02-06 Roller mill and method of operating a roller mill
PCT/EP2013/051133 WO2013117423A2 (en) 2012-02-06 2013-01-22 Roller mill and method for operating a roller mill

Publications (2)

Publication Number Publication Date
EP2734304A2 true EP2734304A2 (en) 2014-05-28
EP2734304B1 EP2734304B1 (en) 2014-10-29

Family

ID=47598842

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13700910.6A Not-in-force EP2734304B1 (en) 2012-02-06 2013-01-22 Roller mill and method for operating a roller mill

Country Status (8)

Country Link
US (1) US9573138B2 (en)
EP (1) EP2734304B1 (en)
JP (1) JP6162151B2 (en)
CN (1) CN104271246B (en)
DE (1) DE102012100946B4 (en)
DK (1) DK2734304T3 (en)
IN (1) IN2014DN06217A (en)
WO (1) WO2013117423A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012107740A1 (en) * 2012-08-22 2014-02-27 GFB Gesellschaft für Bemessungsforschung mbH Method for grinding
DE102015203856A1 (en) 2015-03-04 2016-12-15 Thyssenkrupp Ag Vertical roller mill
CA3128273A1 (en) * 2019-02-01 2020-08-06 Gcp Applied Technologies Inc. Moisture management in vertical roller mills

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1926735B1 (en) * 1969-05-24 1970-12-17 Perrot Regnerbau Gmbh & Co Sprinkler adjustable to different sized sprinkling areas
JPS51163172U (en) * 1975-06-20 1976-12-25
SE421752B (en) * 1978-05-02 1982-02-01 Broman John S PROCEDURES AND MILLS FOR CLASSIFICATING SEPARATING WATER MILLING OF BERGARTER O DILYT
DE3033417A1 (en) 1980-09-05 1982-04-22 Perrot-Regnerbau Gmbh & Co, 7260 Calw ON DIFFERENT WATERING NEEDS VARIABLE SPRINKLERS
JPS6179651A (en) 1984-09-27 1986-04-23 株式会社アイジー技術研究所 Manufacture of sandwich board
JPS6179651U (en) * 1984-10-31 1986-05-27
JPH06296886A (en) * 1993-04-16 1994-10-25 Sumitomo Metal Ind Ltd Production of fine powder of granulated blastfurnace slag
JP2744403B2 (en) * 1994-01-13 1998-04-28 川崎重工業株式会社 Vertical mill
US6193176B1 (en) * 1997-02-18 2001-02-27 Kawasaki Jukogyo Kabushiki Kaisha Cement clinker grinding method using vertical roller mill and apparatus
JP2000140662A (en) * 1998-11-02 2000-05-23 Babcock Hitachi Kk Roller mill
JP2000140663A (en) 1998-11-09 2000-05-23 Babcock Hitachi Kk Roller mill
JP2000157882A (en) * 1998-11-26 2000-06-13 Mitsubishi Heavy Ind Ltd Roller mill
CN201161202Y (en) 2008-02-21 2008-12-10 江苏恒远国际工程有限公司 Grinding machine
CN201524599U (en) 2009-05-26 2010-07-14 中国建材装备有限公司 Water injector in vertical mill

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2013117423A2 *

Also Published As

Publication number Publication date
JP2015506273A (en) 2015-03-02
DE102012100946B4 (en) 2017-12-28
DK2734304T3 (en) 2015-02-02
US20150014452A1 (en) 2015-01-15
WO2013117423A2 (en) 2013-08-15
WO2013117423A3 (en) 2013-12-19
US9573138B2 (en) 2017-02-21
CN104271246B (en) 2016-05-25
CN104271246A (en) 2015-01-07
EP2734304B1 (en) 2014-10-29
JP6162151B2 (en) 2017-07-12
IN2014DN06217A (en) 2015-10-23
DE102012100946A1 (en) 2013-08-08

Similar Documents

Publication Publication Date Title
EP3429770B1 (en) Device and method for descaling a workpiece in motion
EP2637790B1 (en) Process of grinding and grinding mill
EP3168367B1 (en) Self-propelled soil milling machine and method of working a road surface
WO2015144864A1 (en) Method and device for the continuous applying of a liquid to a substrate
WO2018073086A1 (en) Cooling a roll of a roll stand
EP2874749B1 (en) Comminution of grinding stock in a vertical roller mill
EP2734304B1 (en) Roller mill and method for operating a roller mill
WO2014012792A2 (en) Method and system for comminuting grinding stock using a roller mill
EP3184182B1 (en) Device and method for cleaning a body having a surface layer to be removed
WO2012171514A1 (en) Method and device for cooling a working roll
EP1802406B1 (en) Method and apparatus for cleaning rolls
DE102010007817B4 (en) platen
EP3280548B1 (en) Device for removing scale from the surface of a slab or a rolled product
WO2017191030A1 (en) Method for controlling a device for treating fibrous material
EP1860224A2 (en) Device for sanforizing a textile fabric
EP1138391A1 (en) Device for milling, pulverizing and dispersing of fluid milling material
DE4000251A1 (en) Grinding surface of wire or bar - involves rotating disc with groups of rollers to guide abrasive belt
EP3714097A1 (en) Controlling the treatment of fibrous material
EP3411236B1 (en) Printing press and method for drying a web-like material of a printing press
EP3599036B1 (en) Mill stand with hybrid cooling device
EP3996849A1 (en) Vertical roller mill
WO2015132302A1 (en) Rolling press
DE102015210680A1 (en) Method and device for controlling a parameter of a rolling stock
DE102010062493A1 (en) Cleaning device, particularly for cleaning dry screens in paper machines during operation, has support structure, which is arranged over dry screen perpendicular to its direction of motion and support frame
EP2363521A1 (en) Thermobonding calender

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: 20140219

AK Designated contracting states

Kind code of ref document: A2

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

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20140808

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: THYSSENKRUPP INDUSTRIAL SOLUTIONS AG

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

DAX Request for extension of the european patent (deleted)
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: 693283

Country of ref document: AT

Kind code of ref document: T

Effective date: 20141115

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: 502013000155

Country of ref document: DE

Effective date: 20141211

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20150127

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20141029

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: 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: 20141029

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: 20141029

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: 20141029

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: 20150228

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: 20141029

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: 20150129

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: 20150302

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

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: 20141029

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: 20141029

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: 20150130

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: 20141029

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: 20141029

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: 20141029

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: 20141029

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 502013000155

Country of ref document: DE

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

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: 20141029

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: 20141029

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: 20141029

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

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

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: 20141029

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: 20150122

26 Opposition filed

Opponent name: MITSUBISHI HITACHI POWER SYSTEMS EUROPE GMBH

Effective date: 20150723

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

Free format text: ORIGINAL CODE: EPIDOSNOBS2

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: 20141029

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

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: PLFP

Year of fee payment: 4

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: 20150122

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: 20141029

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

R26 Opposition filed (corrected)

Opponent name: MITSUBISHI HITACHI POWER SYSTEMS EUROPE GMBH

Effective date: 20150723

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

Ref country code: CH

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

Effective date: 20160131

Ref country code: LI

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

Effective date: 20160131

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: 20141029

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 5

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: 20130122

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: 20141029

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

Ref country code: BE

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

Effective date: 20150131

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

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: 20141029

PLCK Communication despatched that opposition was rejected

Free format text: ORIGINAL CODE: EPIDOSNREJ1

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

Effective date: 20170122

REG Reference to a national code

Ref country code: DE

Ref legal event code: R100

Ref document number: 502013000155

Country of ref document: DE

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

Ref country code: GB

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

Effective date: 20170122

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

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

Free format text: STATUS: OPPOSITION REJECTED

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 6

27O Opposition rejected

Effective date: 20170928

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

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: 20141029

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: 20141029

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: 20141029

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

Ref country code: DE

Payment date: 20190123

Year of fee payment: 7

Ref country code: FR

Payment date: 20190124

Year of fee payment: 7

Ref country code: CZ

Payment date: 20190121

Year of fee payment: 7

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

Ref country code: AT

Payment date: 20190122

Year of fee payment: 7

Ref country code: DK

Payment date: 20190123

Year of fee payment: 7

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502013000155

Country of ref document: DE

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

Effective date: 20200131

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 693283

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200122

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

Ref country code: CZ

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

Effective date: 20200122

Ref country code: FR

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

Effective date: 20200131

Ref country code: DE

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

Effective date: 20200801

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: 20200122

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: 20200131