EP3871776A1 - Device for treating a mixture of materials consisting of substitute fuel and impurities - Google Patents

Device for treating a mixture of materials consisting of substitute fuel and impurities Download PDF

Info

Publication number
EP3871776A1
EP3871776A1 EP20159282.1A EP20159282A EP3871776A1 EP 3871776 A1 EP3871776 A1 EP 3871776A1 EP 20159282 A EP20159282 A EP 20159282A EP 3871776 A1 EP3871776 A1 EP 3871776A1
Authority
EP
European Patent Office
Prior art keywords
rotor mill
material mixture
separating device
stage
feed
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
EP20159282.1A
Other languages
German (de)
French (fr)
Other versions
EP3871776B1 (en
Inventor
Franz Walter AUMUND
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.)
Aumund Foerdertechnik GmbH
Aumund Fordererbau GmbH and Co KG Maschinenfabrik
Original Assignee
Aumund Foerdertechnik GmbH
Aumund Fordererbau GmbH and Co KG Maschinenfabrik
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
Application filed by Aumund Foerdertechnik GmbH, Aumund Fordererbau GmbH and Co KG Maschinenfabrik filed Critical Aumund Foerdertechnik GmbH
Priority to PL20159282.1T priority Critical patent/PL3871776T3/en
Priority to EP20159282.1A priority patent/EP3871776B1/en
Priority to BR102021003007-0A priority patent/BR102021003007A2/en
Priority to US17/185,095 priority patent/US11660605B2/en
Priority to CN202110210052.1A priority patent/CN113368997B/en
Publication of EP3871776A1 publication Critical patent/EP3871776A1/en
Application granted granted Critical
Publication of EP3871776B1 publication Critical patent/EP3871776B1/en
Active 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
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/286—Feeding or discharge
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
    • B02C13/16—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters hinged to the rotor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
    • B02C13/18—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/282—Shape or inner surface of mill-housings
    • B02C13/284—Built-in screens
    • 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
    • B02C23/02—Feeding devices
    • 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
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • 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
    • 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
    • B02C23/24—Passing gas through crushing or disintegrating zone
    • B02C23/30—Passing gas through crushing or disintegrating zone the applied gas acting to effect material separation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/288—Ventilating, or influencing air circulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/28—Shape or construction of beater elements
    • B02C2013/2812—Shape or construction of beater elements the beater elements are attached to a hollow cylindrical rotor
    • 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
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • B02C2023/165—Screen denying egress of oversize material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
    • B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage

Definitions

  • the present invention relates to a method for processing a material mixture consisting of substitute fuel and impurities, which is sifted, comminuted and dried in the device.
  • the substitute fuel also known as secondary fuel, includes in particular solid waste, which can be used together with conventional fuels, especially in cement, lime, lignite or industrial power plants as well as in waste incineration plants or as the sole fuel in substitute fuel power plants.
  • the solid waste for example, consisting of commercial waste and / or household waste, generally still contains contaminants such as glass or metals after being roughly shredded. It is therefore known to carry out a separation after the coarse comminution and, if necessary, to comminute the substitute fuel further.
  • the object of the present invention is therefore to provide a device with which both a separation of the impurities from the substitute fuel is possible and a particularly efficient comminution of the substitute fuel can be carried out.
  • a device for processing a material mixture consisting of substitute fuel and impurities having a vertically oriented central feed, a separating device arranged below the central feed, a rotor mill, the rotor mill being arranged above the separating device and surrounding the central feed, and a flow device for generating an upwardly directed gas flow, wherein the material mixture can be introduced into the feed and sinks after the introduction into the feed to the separating device, wherein the contaminant in the separating device is at least partially separated as a contaminant fraction from the material mixture and that of the separated material mixture rises with the gas flow to the rotor mill, the rising material mixture being comminuted in the rotor mill.
  • the rotor mill has a multi-stage design, a separating device being arranged between each of the stages of the rotor mill, the material mixture not retained by the separating device being further comminuted in the following stage.
  • the material mixture can, for example, be introduced into the feed via a funnel or some other feed device, the feed being aligned vertically so that the material mixture introduced into the feed sinks in the feed.
  • the feed is hollow on the inside so that the material mixture can sink undisturbed.
  • the feed can be formed by a tube (hollow cylinder).
  • a separating device is arranged below the central feed, which includes, for example, a rotatably drivable spreading plate.
  • the separating device is designed, in particular, in such a way that at least a large proportion of the contaminants can be separated (sifted) from the material mixture, the separated contaminants being able to be removed from the device in a suitable manner.
  • a flow device for separation / sifting, by means of which an upwardly rising gas flow can be generated at least in the area of the separation device, in particular in the area of the spreading plate of the separation device, and the rotor mill.
  • the flow device has in particular at least one gas inlet preferably arranged in the lower region of the device and at least one outlet in the upper region of the rotor mill.
  • heated air can be used as the gas.
  • the material mixture supplied through the central feed is thrown from the spreading plate into a space surrounding the spreading plate, in which the gas flow rises, with the rising gas flow only taking the substitute fuel with it, if possible, and a large part of the impurities in the spreading plate surrounding space drops.
  • the substitute fuel that has been taken along is then also dried with the gas flow.
  • the substitute fuel carried along by the gas flow (and any impurities that have not been separated off) is fed with the gas flow to the rotor mill, which is arranged above the separating device (spreading plate).
  • the substitute fuel is crushed in the rotor mill by impact, shear and impact forces.
  • the rotor mill preferably has at least one rotary mill powered tool that promotes the comminution of the substitute fuel.
  • the separating device (and in particular its spreading plate) and the tools of the rotor mill can preferably be driven together to rotate (rotationally) about a vertically aligned axis.
  • the feed can also be driven to rotate at the same time.
  • the spreading plate can be non-rotatably connected to the element delimiting the feed (for example a pipe), the at least one tool of the rotor mill preferably being attached to an outside of the element forming the central feed inside.
  • only one drive has to be provided for generating the rotary movement.
  • the drive is arranged in particular in the lower region of the device and can, for example, generate a rotary movement with 500 to 1000, preferably with 700 to 900 revolutions / min.
  • the rotor mill has at least and preferably exactly two or three stages, possibly four stages, with at least one separating device (for example a sieve) being arranged between the stages of the rotor mill, so that particles of the material mixture mainly containing substitute fuel with one above the particle size specified by the separating device can be retained in the previous stage, while particles of the material mixture with a smaller size can pass into the following stage.
  • the material mixture is then comminuted further.
  • the multi-stage rotor mill means that one device can provide substitute fuel with different mean particle sizes.
  • the fraction of the material mixture withdrawn from the first stage can for example have an average particle size between 60 and 200 mm, while the fraction withdrawn from the second stage des Material mixture can have an average particle size of, for example, 10 to 60 mm.
  • At least one outlet is assigned to each stage of the rotor mill, via which the correspondingly comminuted material mixture, which mainly or at best exclusively contains substitute fuel, can be drawn off.
  • the second and, if appropriate, any further stage of the rotor mill are arranged in particular vertically above the first or preceding stage, the tools of each stage preferably being driven by a single common drive.
  • the separating device comprises at least one sieve in each case between the stages of the rotor mill.
  • a simple separating device is provided with such a sieve.
  • annular space is formed which surrounds the first stage of the rotor mill, wherein in particular a grid arrangement functioning as a sieve is arranged between the outer annular space and the tools of the first stage of the rotor mill.
  • the material mixture comminuted in the first stage of the rotor mill can thus pass through the grid arrangement into the annular space, from which the comminuted material mixture can be withdrawn through the at least one first outlet. If a plurality (more than two) stages are formed, each stage following the first stage up to the last stage can also be assigned its own annular space which is separated from the tools of the corresponding stage by a grid arrangement.
  • the separating device is assigned a cleaning device between the stages of the rotor mill, with which the material mixture retained by the separating device can be released from the separating device.
  • the dissolved material mixture can thus be fed to a further comminution in the preceding stage, for which purpose, for example, a pulsation of the gas flow is also possible.
  • the cleaning device can also be rotatably driven together with the tools of the previous stage, so that a continuous release of the retained material mixture from the separating device is possible.
  • the rotor mill (and in particular also each stage of the rotor mill) has several, in particular more than 10, preferably more than 20 tools arranged vertically and offset from one another in the circumferential direction.
  • This arrangement of the tools, offset both in the circumferential direction and in the vertical direction, results in a longer dwell time of the material mixture and thus more effective comminution of the material mixture, so that a higher degree of comminution can be achieved or the rotor mill can be realized with a lower height.
  • the longer dwell time also improves the drying of the material mixture.
  • the rotor mill has a centrally arranged and rotationally driven hollow cylinder (which preferably also forms the central feed), on the outside of which the tools are attached, the tools each extending individually radially outward from the outside of the hollow cylinder .
  • the tools are therefore in particular elongate elements which extend outward from the hollow cylinder.
  • a group of tools and / or most tools include flat wing elements that extend radially outward.
  • the wing elements are attached directly or indirectly to the outside of the hollow cylinder and are considerably longer in the radial direction (at least three times, preferably at least five times) as long as their width.
  • the wing elements have a height which is less than their width, the wing elements being at least twice, preferably four times as wide as they are high. It has been found that a particularly efficient comminution of the material mixture is possible with such wing-like elements.
  • a further improvement in the comminution can be achieved in that the wing elements are positioned at an angle to a horizontal plane.
  • the setting angle is preferably 3 ° to 45 °, particularly preferably 5 ° to 20 °, to the horizontal plane.
  • At least one tool or a plurality of tools comprises a plate-shaped impact element which is arranged at a radial end of the tool, the plate-shaped impact element being particularly vertically aligned.
  • the plate-shaped impact element With such a plate-shaped impact element, the comminution efficiency can be further increased.
  • At least one tool comprises a scraping element which is arranged radially on the outside of the tool and is in contact with a wall of the rotor mill or the stage of the rotor mill that delimits the grinding chamber on the outside, the wall being formed, for example, by a grid arrangement can that separates the grinding chamber from an annulus.
  • a scraping element which is arranged radially on the outside of the tool and is in contact with a wall of the rotor mill or the stage of the rotor mill that delimits the grinding chamber on the outside, the wall being formed, for example, by a grid arrangement can that separates the grinding chamber from an annulus.
  • the plate-shaped impact element or the scraping element can, for example, be attached to a radial end of the previously described wing element of the tool.
  • At least one tool is formed from a wire which is attached to the outside of the hollow cylinder.
  • a wire is understood in particular to be such an element which extends outwardly from the hollow cylinder and whose width and height are approximately the same.
  • the wire preferably has a circular cross-sectional configuration.
  • a large number (in particular more than 8, preferably more than 16) of tools are arranged, each comprising a wing element, while a plurality of tools comprising a wire are arranged in an upper region of the rotor mill or in an upper region of a stage of the rotor mill.
  • a group (more than 4) of tools can be arranged helically offset from one another (i.e. on a helical line), with several groups of tools being arranged one behind the other in the circumferential direction.
  • the device shown in the figures for processing a material mixture consisting of substitute fuel and impurities has a vertically oriented central feed 1 which is radially delimited by a hollow cylinder 12.
  • a funnel is formed above the feed 1 through which the material mixture is fed into the feed 1.
  • a separating device 2 which comprises a spreading plate 14, is formed below the central feed 1.
  • the spreading plate 14 is non-rotatably connected to the hollow cylinder 12, so that the spreading plate 14 and the hollow cylinder 12 can be driven to rotate together.
  • Tools in the form of wing elements 8a and wires 8b are arranged on the outside of the hollow cylinder 12, so that they can be driven to rotate together with the hollow cylinder 12 about the longitudinal axis of the hollow cylinder.
  • the tools 8a, 8b form a rotor mill 3 arranged above the separating device 2.
  • the device also comprises a flow device 4 with an inlet 15, a first outlet 7.1 and a second outlet 7.2.
  • the flow device 4 can be operated by blowing in a gaseous operating medium at the inlet 15 or by sucking off the gaseous operating medium at the outlets 7.1 and 7.2.
  • the interior of the device is designed in such a way that the operating medium entering through the inlet 15 flows upwards past the radially outer edge of the spreading plate 14 into the rotor mill 3.
  • the rotor mill 3 has a first stage 5.1 to which the first outlet 7.1 is assigned.
  • the rotor mill 3 also has a second stage 5.2, to which the second outlet 7.2 is assigned.
  • the tools 8a and 8b of the first stage 5.1 are radially surrounded by a grid arrangement 10 which separates the tools from an annular space 9.
  • a separating device 6 in the form of a sieve is formed between the first stage 5.1 and the second stage 5.2.
  • the first stage 5.1 and the second stage 5.2 of the rotor mill 3 each comprise a multiplicity of vane elements 8a which are attached in groups in a helical manner to the outside of the hollow cylinder 12 and which extend from the outside of the hollow cylinder extend radially outward.
  • the wing elements 8a are aligned with an angle of attack to a horizontal plane.
  • Plate-shaped impact elements 13 are attached to the outer ends of the wing elements 8a.
  • scraping elements 11 are attached to some wing elements 8a, with which components of the material mixture retained by the grid arrangement 10 can be detached from the grid arrangement 10.
  • scratching elements can also be attached indirectly to the hollow cylinder 12 as a cleaning device, with which material retained by the separating device 6 can be detached.
  • the first stage 5.1 and the second stage 5.2 each have wires 8b as tools, which are attached to the outside of the hollow cylinder 12.
  • a material mixture consisting of substitute fuel and impurities is introduced into the vertically oriented central feed 1, in which the material mixture sinks down to the separating device 2 comprising the spreading plate 14.
  • the material mixture is accelerated radially outwards when it reaches the spreading plate 14 at the latest.
  • the material mixture passing over the outer radial edge of the spreading plate 14 is sifted due to the rising gas flow, so that above all foreign matter in the space surrounding the spreading plate 14 sinks down, while the remaining material mixture, mainly containing substitute fuel, with the gas flow into the first stage 5.1 of the rotor mill 3 entry.
  • the material mixture is comminuted by interacting with the tools 8a and 8b as well as with each other. Due to the vertically and circumferentially offset arrangement of the tools 8a, 8b, effective comminution can take place, with comminuted Material can pass through the grid arrangement 10 into the annular space 9, this part of the material mixture being withdrawn from the first outlet 7.1.
  • the material mixture passing through the separating device 6 is further comminuted in the second stage 5.2, so that the material mixture exiting from the second outlet 7.2 has a smaller mean particle size than the material mixture exiting from the first outlet 7.1.
  • the device can therefore not only be used for particularly efficient comminution, but rather a material mixture with different particle sizes can also be provided.

Landscapes

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

Abstract

Die vorliegende Erfindung betrifft eine Vorrichtung zum Aufbereiten eines aus Ersatzbrennstoff und Störstoff bestehenden Materialgemischs, aufweisend eine vertikal ausgerichtete zentrale Zuführung (1), eine unterhalb der zentralen Zuführung (1) angeordnete Trenneinrichtung (2), eine Rotormühle (3), wobei die Rotormühle (3) oberhalb der Trenneinrichtung (2) angeordnet ist und die zentrale Zuführung (1) umgibt, eine Strömungseinrichtung (4) zur Erzeugung eines nach oben gerichteten Gasstroms, wobei die Rotormühle (3) mehrstufig ausgebildet ist und zwischen den Stufen (5.1, 5.2) der Rotormühle (3) jeweils eine Trennvorrichtung (6) angeordnet ist, wobei von der Trennvorrichtung (6) nicht zurückgehaltenes Materialgemisch in der folgenden Stufe (5.2) weiter zerkleinert wird.The present invention relates to a device for processing a material mixture consisting of substitute fuel and impurities, having a vertically oriented central feed (1), a separating device (2) arranged below the central feed (1), a rotor mill (3), the rotor mill ( 3) is arranged above the separating device (2) and surrounds the central feed (1), a flow device (4) for generating an upwardly directed gas flow, the rotor mill (3) being designed in several stages and between the stages (5.1, 5.2) a separating device (6) is arranged in each case of the rotor mill (3), the material mixture not retained by the separating device (6) being further comminuted in the following stage (5.2).

Description

Die vorliegende Erfindung betrifft ein Verfahren zum Aufbereiten eines aus Ersatzbrennstoff und Störstoff bestehenden Materialgemischs, welches in der Vorrichtung gesichtet, zerkleinert und getrocknet wird.The present invention relates to a method for processing a material mixture consisting of substitute fuel and impurities, which is sifted, comminuted and dried in the device.

Der auch als Sekundärbrennstoff bezeichnete Ersatzbrennstoff umfasst insbesondere feste Abfälle, welche zusammen mit konventionellen Brennstoffen vor allem in Zement-, Kalk-, Braunkohle- oder Industriekraftwerken sowie in Müllverbrennungsanlagen oder als alleiniger Brennstoff in Ersatzbrennstoff-Kraftwerken eingesetzt werden kann. Der beispielsweise aus Gewerbeabfällen und/oder Hausmüll bestehende feste Abfall weist in der Regel nach einer Grobzerkleinerung noch Störstoffe, wie Glas oder Metalle, auf. Es ist daher bekannt, nach der Grobzerkleinerung eine Separierung vorzunehmen und den Ersatzbrennstoff gegebenenfalls weiter zu zerkleinern.The substitute fuel, also known as secondary fuel, includes in particular solid waste, which can be used together with conventional fuels, especially in cement, lime, lignite or industrial power plants as well as in waste incineration plants or as the sole fuel in substitute fuel power plants. The solid waste, for example, consisting of commercial waste and / or household waste, generally still contains contaminants such as glass or metals after being roughly shredded. It is therefore known to carry out a separation after the coarse comminution and, if necessary, to comminute the substitute fuel further.

Aufgabe der vorliegenden Erfindung ist es daher, eine Vorrichtung anzugeben, mit der sowohl eine Separierung der Störstoffe vom Ersatzbrennstoff möglich ist als auch eine besonders effiziente Zerkleinerung des Ersatzbrennstoffs durchgeführt werden kann.The object of the present invention is therefore to provide a device with which both a separation of the impurities from the substitute fuel is possible and a particularly efficient comminution of the substitute fuel can be carried out.

Die Aufgabe wird gelöst durch eine Vorrichtung mit den Merkmalen des unabhängigen Anspruchs. Vorteilhafte Weiterbildungen der Vorrichtung sind in den abhängigen Ansprüchen und in der Beschreibung angegeben, wobei einzelne Merkmale der vorteilhaften Weiterbildungen in technisch sinnvoller Weise miteinander kombinierbar sind.The object is achieved by a device with the features of the independent claim. Advantageous developments of the device are in the dependent claims and specified in the description, with individual features of the advantageous developments being able to be combined with one another in a technically meaningful manner.

Gelöst wird die Aufgabe durch eine Vorrichtung zum Aufbereiten eines aus Ersatzbrennstoff und Störstoff bestehenden Materialgemischs, aufweisend eine vertikal ausgerichtete zentrale Zuführung, eine unterhalb der zentralen Zuführung angeordnete Trenneinrichtung, eine Rotormühle, wobei die Rotormühle oberhalb der Trenneinrichtung angeordnet ist und die zentrale Zuführung umgibt, und eine Strömungseinrichtung zur Erzeugung eines nach oben gerichteten Gasstroms, wobei das Materialgemisch in die Zuführung einführbar ist und nach der Einführung in die Zuführung zu der Trenneinrichtung absinkt, wobei der Störstoff in der Trenneinrichtung zumindest teilweise als eine Störstofffraktion aus dem Materialgemisch abgeschieden wird und das von den abgeschiedenen Störstoffen getrennte Materialgemisch mit dem Gasstrom zu der Rotormühle aufsteigt, wobei das aufsteigende Materialgemisch in der Rotormühle zerkleinert wird. Es ist zudem vorgesehen, dass die Rotormühle mehrstufig ausgebildet ist, wobei zwischen den Stufen der Rotormühle jeweils eine Trennvorrichtung angeordnet ist, wobei von der Trennvorrichtung nicht zurückgehaltenes Materialgemisch in der folgenden Stufe weiter zerkleinert wird.The object is achieved by a device for processing a material mixture consisting of substitute fuel and impurities, having a vertically oriented central feed, a separating device arranged below the central feed, a rotor mill, the rotor mill being arranged above the separating device and surrounding the central feed, and a flow device for generating an upwardly directed gas flow, wherein the material mixture can be introduced into the feed and sinks after the introduction into the feed to the separating device, wherein the contaminant in the separating device is at least partially separated as a contaminant fraction from the material mixture and that of the separated material mixture rises with the gas flow to the rotor mill, the rising material mixture being comminuted in the rotor mill. It is also provided that the rotor mill has a multi-stage design, a separating device being arranged between each of the stages of the rotor mill, the material mixture not retained by the separating device being further comminuted in the following stage.

Das Materialgemisch kann beispielsweise über einen Trichter oder eine andere Aufgabevorrichtung in die Zuführung eingebracht werden, wobei die Zuführung vertikal ausgerichtet ist, so dass das in die Zuführung eingebrachte Materialgemisch in der Zuführung absinkt. Die Zuführung ist also innen hohl, so dass das Materialgemisch ungestört absinken kann. Beispielsweise kann die Zuführung durch ein Rohr (Hohlzylinder) ausgebildet sein.The material mixture can, for example, be introduced into the feed via a funnel or some other feed device, the feed being aligned vertically so that the material mixture introduced into the feed sinks in the feed. The feed is hollow on the inside so that the material mixture can sink undisturbed. For example, the feed can be formed by a tube (hollow cylinder).

Unterhalb der zentralen Zuführung ist eine Trenneinrichtung angeordnet, die beispielsweise einen drehbar antreibbaren Streuteller umfasst. Die Trenneinrichtung ist insbesondere so ausgebildet, dass zumindest ein großer Anteil des Störstoffes aus dem Materialgemisch abgetrennt (gesichtet) werden kann, wobei die abgetrennten Störstoffe auf geeignete Weise aus der Vorrichtung entfernt werden können.A separating device is arranged below the central feed, which includes, for example, a rotatably drivable spreading plate. The separating device is designed, in particular, in such a way that at least a large proportion of the contaminants can be separated (sifted) from the material mixture, the separated contaminants being able to be removed from the device in a suitable manner.

Zur Trennung/Sichtung ist eine Strömungseinrichtung vorgesehen, mittels derer zumindest im Bereich der Trenneinrichtung, insbesondere im Bereich des Streutellers der Trenneinrichtung, und der Rotormühle ein nach oben aufsteigender Gasstrom erzeugt werden kann. Die Strömungseinrichtung weist hierzu insbesondere mindestens einen bevorzugt im unteren Bereich der Vorrichtung angeordneten Gaseinlass auf und mindestens einen Auslass im oberen Bereich der Rotormühle. Als Gas kann beispielsweise erwärmte Luft eingesetzt werden.A flow device is provided for separation / sifting, by means of which an upwardly rising gas flow can be generated at least in the area of the separation device, in particular in the area of the spreading plate of the separation device, and the rotor mill. For this purpose, the flow device has in particular at least one gas inlet preferably arranged in the lower region of the device and at least one outlet in the upper region of the rotor mill. For example, heated air can be used as the gas.

Es ist hierbei insbesondere vorgesehen, dass das durch die zentrale Zuführung zugeführte Materialgemisch vom Streuteller in einen den Streuteller umgebenden Raum geschleudert wird, in dem der Gasstrom aufsteigt, wobei der aufsteigende Gasstrom möglichst nur den Ersatzbrennstoff mitnimmt, und ein Großteil des Störstoffes in dem den Streuteller umgebenden Raum absinkt. Mit dem Gasstrom erfolgt dann auch eine Trocknung des mitgenommenen Ersatzbrennstoffes .In particular, it is provided that the material mixture supplied through the central feed is thrown from the spreading plate into a space surrounding the spreading plate, in which the gas flow rises, with the rising gas flow only taking the substitute fuel with it, if possible, and a large part of the impurities in the spreading plate surrounding space drops. The substitute fuel that has been taken along is then also dried with the gas flow.

Der von dem Gasstrom mitgenommene Ersatzbrennstoff (und gegebenenfalls nicht abgetrennter Störstoff) wird mit dem Gasstrom der Rotormühle zugeführt, die oberhalb der Trenneinrichtung (Streuteller) angeordnet ist. Der Ersatzbrennstoff wird in der Rotormühle durch Schlag-, Scher- und Prallkräfte zerkleinert. Die Rotormühle weist hierzu bevorzugt mindestens ein rotatorisch angetriebenes Werkzeug auf, das die Zerkleinerung des Ersatzbrennstoffes fördert.The substitute fuel carried along by the gas flow (and any impurities that have not been separated off) is fed with the gas flow to the rotor mill, which is arranged above the separating device (spreading plate). The substitute fuel is crushed in the rotor mill by impact, shear and impact forces. For this purpose, the rotor mill preferably has at least one rotary mill powered tool that promotes the comminution of the substitute fuel.

Bevorzugt sind die Trenneinrichtung (und insbesondere deren Streuteller) und die Werkzeuge der Rotormühle gemeinsam um eine vertikal ausgerichtete Achse drehend (rotatorisch) antreibbar. Besonders bevorzugt ist gleichzeitig auch die Zuführung drehend antreibbar. Hierbei kann der Streuteller drehfest mit dem die Zuführung begrenzenden Element (beispielsweise Rohr) drehfest verbunden sein, wobei bevorzugt das zumindest eine Werkzeug der Rotormühle an einer Außenseite des in seinem Inneren die zentrale Zuführung ausbildenden Elements angebracht ist. Somit muss nur ein Antrieb zur Erzeugung der Drehbewegung vorgesehen sein. Der Antrieb ist insbesondere im unteren Bereich der Vorrichtung angeordnet und kann beispielsweise eine Drehbewegung mit 500 bis 1000, bevorzugt mit 700 bis 900 Umdrehungen/min erzeugen.The separating device (and in particular its spreading plate) and the tools of the rotor mill can preferably be driven together to rotate (rotationally) about a vertically aligned axis. Particularly preferably, the feed can also be driven to rotate at the same time. Here, the spreading plate can be non-rotatably connected to the element delimiting the feed (for example a pipe), the at least one tool of the rotor mill preferably being attached to an outside of the element forming the central feed inside. Thus, only one drive has to be provided for generating the rotary movement. The drive is arranged in particular in the lower region of the device and can, for example, generate a rotary movement with 500 to 1000, preferably with 700 to 900 revolutions / min.

Die Erfindung sieht nun vor, dass die Rotormühle mindestens und bevorzugt genau zwei oder drei Stufen, gegebenenfalls vier Stufen aufweist, wobei zwischen den Stufen der Rotormühle jeweils mindestens eine Trennvorrichtung (beispielsweise ein Sieb) angeordnet ist, so dass Partikel des hauptsächlich Ersatzbrennstoff enthaltenen Materialgemischs mit einer über der von der Trennvorrichtung vorgegebenen Partikelgröße in der vorhergehenden Stufe zurückgehalten werden, während Partikel des Materialgemischs mit einer kleineren Größe in die folgende Stufe gelangen können. In der folgenden Stufe der Rotormühle erfolgt dann eine weitere Zerkleinerung des Materialgemischs. Durch die Mehrstufigkeit der Rotormühle kann also mit einer Vorrichtung Ersatzbrennstoff mit unterschiedlicher mittlerer Partikelgröße bereitgestellt werden. Die aus der ersten Stufe abgezogene Fraktion des Materialgemischs kann beispielsweise eine mittlere Partikelgröße zwischen 60 und 200 mm aufweisen, während die aus der zweiten Stufe abgezogene Fraktion des Materialgemischs eine mittlere Partikelgröße von beispielsweise 10 bis 60 mm aufweisen kann.The invention now provides that the rotor mill has at least and preferably exactly two or three stages, possibly four stages, with at least one separating device (for example a sieve) being arranged between the stages of the rotor mill, so that particles of the material mixture mainly containing substitute fuel with one above the particle size specified by the separating device can be retained in the previous stage, while particles of the material mixture with a smaller size can pass into the following stage. In the following stage of the rotor mill, the material mixture is then comminuted further. The multi-stage rotor mill means that one device can provide substitute fuel with different mean particle sizes. The fraction of the material mixture withdrawn from the first stage can for example have an average particle size between 60 and 200 mm, while the fraction withdrawn from the second stage des Material mixture can have an average particle size of, for example, 10 to 60 mm.

In diesem Zusammenhang ist bevorzugt, wenn jeder Stufe der Rotormühle mindestens ein Auslass zugeordnet ist, über den das entsprechend zerkleinerte Materialgemisch, welches hauptsächlich oder bestenfalls ausschließlich Ersatzbrennstoff enthält, abgezogen werden kann.In this context, it is preferred if at least one outlet is assigned to each stage of the rotor mill, via which the correspondingly comminuted material mixture, which mainly or at best exclusively contains substitute fuel, can be drawn off.

Die zweite und auch gegebenenfalls jede weitere Stufe der Rotormühle sind insbesondere vertikal oberhalb der ersten bzw. vorhergehenden Stufe angeordnet, wobei bevorzugt die Werkzeuge jeder Stufe durch einen einzigen gemeinsamen Antrieb angetrieben werden.The second and, if appropriate, any further stage of the rotor mill are arranged in particular vertically above the first or preceding stage, the tools of each stage preferably being driven by a single common drive.

Während es prinzipiell möglich ist, die Trennvorrichtung durch passende Trennverfahren zu realisieren, ist bevorzugt, wenn die Trennvorrichtung zwischen den Stufen der Rotormühle jeweils mindestens ein Sieb umfasst. Mit einem solchen Sieb ist eine einfache Trennvorrichtung gegeben.While it is possible in principle to implement the separating device using suitable separating methods, it is preferred if the separating device comprises at least one sieve in each case between the stages of the rotor mill. A simple separating device is provided with such a sieve.

In einer Ausführungsform kann vorgesehen sein, dass ein Ringraum ausgebildet ist, der die erste Stufe der Rotormühle umgibt, wobei insbesondere eine als Sieb funktionierende Gitteranordnung zwischen dem äußeren Ringraum und den Werkzeugen der ersten Stufe der Rotormühle angeordnet ist. Das in der ersten Stufe der Rotormühle zerkleinerte Materialgemisch kann somit durch die Gitteranordnung in den Ringraum gelangen, aus welchem das zerkleinerte Materialgemisch durch den mindestens einen ersten Auslass abgezogen werden kann. Wenn eine Vielzahl (mehr als zwei) Stufen ausgebildet sind, kann auch jeder der ersten Stufe folgenden Stufe bis auf der letzten Stufe ein eigener Ringraum zugeordnet sein, der durch eine Gitteranordnung von den Werkzeugen der entsprechenden Stufe getrennt ist.In one embodiment it can be provided that an annular space is formed which surrounds the first stage of the rotor mill, wherein in particular a grid arrangement functioning as a sieve is arranged between the outer annular space and the tools of the first stage of the rotor mill. The material mixture comminuted in the first stage of the rotor mill can thus pass through the grid arrangement into the annular space, from which the comminuted material mixture can be withdrawn through the at least one first outlet. If a plurality (more than two) stages are formed, each stage following the first stage up to the last stage can also be assigned its own annular space which is separated from the tools of the corresponding stage by a grid arrangement.

In diesem Zusammenhang kann auch vorgesehen sein, dass an einem radial äußeren Ende einiger Werkzeuge der (ersten Stufen der) Rotormühle Abstreifelemente, die auch als Kratzelemente bezeichnet werden können, ausgebildet sind, mit denen an der Gitteranordnung oder einer radialen Wandung der Rotormühle zurückgehaltene Partikel des Materialgemischs von der Gitteranordnung losgelöst werden können, sodass sie einer weiteren Zerkleinerung in der ersten oder der entsprechende Stufe zugeführt werden können.In this context, it can also be provided that at a radially outer end of some tools of the (first stages of the) rotor mill scraper elements, which can also be referred to as scraping elements, are formed with which particles of the retained on the grid arrangement or a radial wall of the rotor mill Material mixture can be detached from the grid arrangement so that they can be fed to a further comminution in the first or the corresponding stage.

Zudem kann vorgesehen sein, dass der Trennvorrichtung zwischen den Stufen der Rotormühle eine Säuberungseinrichtung zugeordnet ist, mit der das von der Trennvorrichtung zurückgehaltene Materialgemisch von der Trennvorrichtung gelöst werden kann. Somit kann das gelöste Materialgemisch einer weiteren Zerkleinerung in der vorhergehenden Stufe zugeführt werden, wozu beispielsweise auch eine Pulsation des Gasstromes möglich ist. Hierbei kann auch die Säuberungseinrichtung gemeinsam mit den Werkzeugen der vorhergehenden Stufe drehbar angetrieben werden, so dass eine fortlaufende Lösung des zurückgehaltenen Materialgemischs von der Trennvorrichtung möglich ist.In addition, it can be provided that the separating device is assigned a cleaning device between the stages of the rotor mill, with which the material mixture retained by the separating device can be released from the separating device. The dissolved material mixture can thus be fed to a further comminution in the preceding stage, for which purpose, for example, a pulsation of the gas flow is also possible. In this case, the cleaning device can also be rotatably driven together with the tools of the previous stage, so that a continuous release of the retained material mixture from the separating device is possible.

In einer Ausführungsform kann zudem vorgesehen sein, dass die Rotormühle (und insbesondere auch jede Stufe der Rotormühle) mehrere, insbesondere mehr als 10, bevorzugt mehr als 20 vertikal und in Umfangsrichtung versetzt zueinander angeordnete Werkzeuge aufweist. Durch diese sowohl in Umfangsrichtung als auch in vertikaler Richtung versetzte Anordnung der Werkzeuge wird eine höhere Verweilzeit des Materialgemischs und damit eine effektivere Zerkleinerung des Materialgemischs erreicht, sodass ein höherer Zerkleinerungsgrad erzielbar ist beziehungsweise die Rotormühle mit einer geringeren Höhe realisiert werden kann. Durch die höhere Verweilzeit wird aber auch eine bessere Trocknung des Materialgemischs erreicht.In one embodiment it can also be provided that the rotor mill (and in particular also each stage of the rotor mill) has several, in particular more than 10, preferably more than 20 tools arranged vertically and offset from one another in the circumferential direction. This arrangement of the tools, offset both in the circumferential direction and in the vertical direction, results in a longer dwell time of the material mixture and thus more effective comminution of the material mixture, so that a higher degree of comminution can be achieved or the rotor mill can be realized with a lower height. The longer dwell time also improves the drying of the material mixture.

In diesem Zusammenhang ist bevorzugt, wenn die Rotormühle einen zentral angeordneten und rotatorisch angetriebenen Hohlzylinder (der bevorzugt auch die zentrale Zuführung ausbildet) aufweist, an dessen Außenseite die Werkzeuge angebracht sind, wobei sich die Werkzeuge von der Außenseite des Hohlzylinders jeweils einzeln radial nach außen erstrecken. Die Werkzeuge sind also insbesondere länglich ausgebildete Elemente, die sich von dem Hohlzylinder nach außen erstrecken. Somit kann also insbesondere der gesamte Bereich zwischen der Außenseite des Hohlzylinders und einer dazu radial beabstandeten Begrenzung der Rotormühle von dem aufsteigenden Materialgemisch durchströmt werden, wobei in dem gesamten Bereich eine Wechselwirkung mit den Werkzeugen stattfinden kann.In this context, it is preferred if the rotor mill has a centrally arranged and rotationally driven hollow cylinder (which preferably also forms the central feed), on the outside of which the tools are attached, the tools each extending individually radially outward from the outside of the hollow cylinder . The tools are therefore in particular elongate elements which extend outward from the hollow cylinder. Thus, in particular, the entire area between the outside of the hollow cylinder and a radially spaced boundary of the rotor mill can be flowed through by the rising material mixture, with an interaction with the tools taking place in the entire area.

Es kann dabei vorgesehen sein, dass eine Gruppe von Werkzeugen und/oder die meisten Werkzeuge flache Flügelelemente umfassen, die sich radial nach außen erstrecken. Die Flügelelemente sind mittelbar oder unmittelbar an der Außenseite des Hohlzylinders angebracht und sind in radialer Richtung wesentlich länger (mindestens dreimal, bevorzugt mindestens fünfmal) so lang wie ihre Breite. Zudem weisen die Flügelelemente eine Höhe auf, die geringer ist als ihre Breite, wobei die Flügelelemente mindestens doppelt, bevorzugt viermal so breit sind wie hoch. Es hat sich herausgestellt, dass mit solchen flügelartigen Elementen eine besonders effiziente Zerkleinerung des Materialgemischs möglich ist.It can be provided that a group of tools and / or most tools include flat wing elements that extend radially outward. The wing elements are attached directly or indirectly to the outside of the hollow cylinder and are considerably longer in the radial direction (at least three times, preferably at least five times) as long as their width. In addition, the wing elements have a height which is less than their width, the wing elements being at least twice, preferably four times as wide as they are high. It has been found that a particularly efficient comminution of the material mixture is possible with such wing-like elements.

Eine weitere Verbesserung der Zerkleinerung kann dadurch erreicht werden, dass die Flügelelemente mit einem Winkel zu einer horizontalen Ebene angestellt sind. Bevorzugt beträgt der Anstellwinkel 3° bis 45°, besonders bevorzugt 5° bis 20° zu der horizontalen Ebene.A further improvement in the comminution can be achieved in that the wing elements are positioned at an angle to a horizontal plane. The setting angle is preferably 3 ° to 45 °, particularly preferably 5 ° to 20 °, to the horizontal plane.

Es kann zudem vorgesehen sein, dass wenigstens ein Werkzeug oder eine Vielzahl von Werkzeugen, bevorzugt ein größter Teil der Werkzeuge ein plattenförmiges Prallelement umfasst, das an einem radialen Ende des Werkzeugs angeordnet ist, wobei das plattenförmige Prallelement insbesondere vertikal ausgerichtet ist. Mit einem solchen plattenförmigen Prallelement kann die Zerkleinerungseffizienz weiter erhöht werden.It can also be provided that at least one tool or a plurality of tools, preferably a major part of the tools, comprises a plate-shaped impact element which is arranged at a radial end of the tool, the plate-shaped impact element being particularly vertically aligned. With such a plate-shaped impact element, the comminution efficiency can be further increased.

Zudem kann vorgesehen sein, dass wenigstens ein Werkzeug ein Kratzelement umfasst, das radial außen an dem Werkzeug angeordnet ist und in Anlage mit einer den Mahlraum außen begrenzenden Wandung der Rotormühle bzw. der Stufe der Rotormühle ist, wobei die Wandung beispielsweise durch eine Gitteranordnung gebildet sein kann, die den Mahlraum von einem Ringraum trennt. Mit dem Kratzelement kann also eine Anlagerung von Partikeln des Materialgemischs an der Innenseite der Wandung verhindert bzw. gelöst werden.In addition, it can be provided that at least one tool comprises a scraping element which is arranged radially on the outside of the tool and is in contact with a wall of the rotor mill or the stage of the rotor mill that delimits the grinding chamber on the outside, the wall being formed, for example, by a grid arrangement can that separates the grinding chamber from an annulus. With the scraping element, an accumulation of particles of the material mixture on the inside of the wall can be prevented or solved.

Das plattenförmige Prallelement oder das Kratzelement können beispielsweise an einem radialen Ende des zuvor beschriebenen Flügelelements des Werkzeuges angebracht sein.The plate-shaped impact element or the scraping element can, for example, be attached to a radial end of the previously described wing element of the tool.

Es kann auch vorgesehen sein, dass wenigstens ein Werkzeug aus einem Draht gebildet ist, welcher an der Außenseite des Hohlzylinders angebracht ist. Als Draht wird insbesondere ein solches Element verstanden, welches sich von dem Hohlzylinder länglich nach außen erstreckt und dessen Breite und Höhe in etwa gleich ist. Der Draht hat bevorzugt eine kreisrunde Querschnittsgestaltung.It can also be provided that at least one tool is formed from a wire which is attached to the outside of the hollow cylinder. A wire is understood in particular to be such an element which extends outwardly from the hollow cylinder and whose width and height are approximately the same. The wire preferably has a circular cross-sectional configuration.

Bevorzugt ist in einem unteren Bereich der Rotormühle oder in einem unteren Bereich einer Stufe der Rotormühle eine Vielzahl (insbesondere mehr als 8, bevorzugt mehr als 16) von Werkzeugen angeordnet, die jeweils ein Flügelelement umfassen, während in einem oberen Bereich der Rotormühle oder in einem oberen Bereich einer Stufe der Rotormühle mehrere einen Draht umfassende Werkzeuge angeordnet sind.A large number (in particular more than 8, preferably more than 16) of tools are arranged, each comprising a wing element, while a plurality of tools comprising a wire are arranged in an upper region of the rotor mill or in an upper region of a stage of the rotor mill.

Für eine besonders effiziente Zerkleinerung des Materialgemischs hat sich herausgestellt, dass eine Gruppe (mehr als 4) von Werkzeugen helixförmig (also auf einer Schraubenlinie) versetzt zueinander angeordnet sein können, wobei mehrere Gruppen von Werkzeugen in Umfangsrichtung hintereinander angeordnet sein können.For a particularly efficient comminution of the material mixture, it has been found that a group (more than 4) of tools can be arranged helically offset from one another (i.e. on a helical line), with several groups of tools being arranged one behind the other in the circumferential direction.

Die Erfindung sowie das technische Umfeld werden im Folgenden anhand der Figuren beispielhaft erläutert. Es zeigen schematisch

Figur 1:
eine Vorrichtung zum Aufbereiten eines aus Ersatzbrennstoff und Störstoff bestehenden Materialgemischs,
Figur 2:
eine Schnittdarstellung durch die Vorrichtung und
Figur 3:
eine Detailansicht der Vorrichtung.
The invention and the technical environment are explained below by way of example with reference to the figures. It show schematically
Figure 1:
a device for processing a material mixture consisting of substitute fuel and contaminants,
Figure 2:
a sectional view through the device and
Figure 3:
a detailed view of the device.

Die in den Figuren dargestellte Vorrichtung zum Aufbereiten eines aus Ersatzbrennstoff und Störstoff bestehenden Materialgemischs weist eine vertikal ausgerichtete zentrale Zuführung 1 auf, die von einem Hohlzylinder 12 radial begrenzt ist. Oberhalb der Zuführung 1 ist ein Trichter ausgebildet, durch den das Materialgemisch in die Zuführung 1 eingegeben wird.The device shown in the figures for processing a material mixture consisting of substitute fuel and impurities has a vertically oriented central feed 1 which is radially delimited by a hollow cylinder 12. A funnel is formed above the feed 1 through which the material mixture is fed into the feed 1.

Unterhalb der zentralen Zuführung 1 ist eine Trenneinrichtung 2 ausgebildet, die einen Streuteller 14 umfasst. Der Streuteller 14 ist drehfest mit dem Hohlzylinder 12 verbunden, so dass der Streuteller 14 und der Hohlzylinder 12 gemeinsam drehend antreibbar sind.A separating device 2, which comprises a spreading plate 14, is formed below the central feed 1. The spreading plate 14 is non-rotatably connected to the hollow cylinder 12, so that the spreading plate 14 and the hollow cylinder 12 can be driven to rotate together.

An der Außenseite des Hohlzylinders 12 sind Werkzeuge in Form von Flügelelementen 8a und Drähten 8b angeordnet, sodass diese gemeinsam mit dem Hohlzylinder 12 um die Hohlzylinderlängsachse drehend angetrieben werden können. Die Werkzeuge 8a, 8b bilden eine oberhalb der Trenneinrichtung 2 angeordnete Rotormühle 3 aus.Tools in the form of wing elements 8a and wires 8b are arranged on the outside of the hollow cylinder 12, so that they can be driven to rotate together with the hollow cylinder 12 about the longitudinal axis of the hollow cylinder. The tools 8a, 8b form a rotor mill 3 arranged above the separating device 2.

Die Vorrichtung umfasst zudem eine Strömungseinrichtung 4 mit einem Einlass 15, einem ersten Auslass 7.1 und einem zweiten Auslass 7.2. Die Strömungseinrichtung 4 kann durch Einblasen eines gasförmigen Betriebsmediums am Einlass 15 oder durch Absaugen des gasförmigen Betriebsmediums an den Auslässen 7.1 und 7.2 betrieben werden. Die Vorrichtung ist dabei in ihrem Inneren so ausgebildet, dass das durch den Einlass 15 eintretende Betriebsmedium an der radial äußeren Kante des Streutellers 14 nach oben vorbei in die Rotormühle 3 strömt.The device also comprises a flow device 4 with an inlet 15, a first outlet 7.1 and a second outlet 7.2. The flow device 4 can be operated by blowing in a gaseous operating medium at the inlet 15 or by sucking off the gaseous operating medium at the outlets 7.1 and 7.2. The interior of the device is designed in such a way that the operating medium entering through the inlet 15 flows upwards past the radially outer edge of the spreading plate 14 into the rotor mill 3.

Die Rotormühle 3 weist eine erste Stufe 5.1 auf, der der erste Auslass 7.1 zugeordnet ist. Die Rotormühle 3 weist zudem eine zweite Stufe 5.2 auf, der der zweite Auslass 7.2 zugeordnet ist. Die Werkzeuge 8a und 8b der ersten Stufe 5.1 sind radial von einer Gitteranordnung 10 umgeben, die die Werkzeuge von einem Ringraum 9 trennt. Zwischen der ersten Stufe 5.1 und der zweiten Stufe 5.2 ist zudem eine Trennvorrichtung 6 in Form eines Siebes ausgebildet.The rotor mill 3 has a first stage 5.1 to which the first outlet 7.1 is assigned. The rotor mill 3 also has a second stage 5.2, to which the second outlet 7.2 is assigned. The tools 8a and 8b of the first stage 5.1 are radially surrounded by a grid arrangement 10 which separates the tools from an annular space 9. In addition, a separating device 6 in the form of a sieve is formed between the first stage 5.1 and the second stage 5.2.

Die erste Stufe 5.1 und die zweite Stufe 5.2 der Rotormühle 3 umfassen jeweils eine Vielzahl von gruppenweise helixförmig an der Außenseite des Hohlzylinders 12 angebrachte Flügelelemente 8a, die sich von der Außenseite des Hohlzylinders radial nach außen erstrecken. Die Flügelelemente 8a sind mit einem Anstellwinkel zu einer horizontalen Ebene ausgerichtet. An den äußeren Enden der Flügelelemente 8a sind plattenförmige Prallelemente 13 angebracht. An einigen Flügelelementen 8a sind hingegen Kratzelemente 11 angebracht, mit denen von der Gitteranordnung 10 zurückgehaltene Bestandteile des Materialgemischs von der Gitteranordnung 10 losgelöst werden können. Im oberen Bereich der ersten Stufe 5.1 können zudem Kratzelemente als Säuberungseinrichtung mittelbar an dem Hohlzylinder 12 angebracht sein, mit denen von der Trennvorrichtung 6 zurückgehaltenes Material losgelöst werden kann. Im oberen Bereich weisen die erste Stufe 5.1 und die zweite Stufe 5.2 jeweils Drähte 8b als Werkzeuge auf, die an der Außenseite des Hohlzylinders 12 angebracht sind.The first stage 5.1 and the second stage 5.2 of the rotor mill 3 each comprise a multiplicity of vane elements 8a which are attached in groups in a helical manner to the outside of the hollow cylinder 12 and which extend from the outside of the hollow cylinder extend radially outward. The wing elements 8a are aligned with an angle of attack to a horizontal plane. Plate-shaped impact elements 13 are attached to the outer ends of the wing elements 8a. On the other hand, scraping elements 11 are attached to some wing elements 8a, with which components of the material mixture retained by the grid arrangement 10 can be detached from the grid arrangement 10. In the upper area of the first stage 5.1, scratching elements can also be attached indirectly to the hollow cylinder 12 as a cleaning device, with which material retained by the separating device 6 can be detached. In the upper area, the first stage 5.1 and the second stage 5.2 each have wires 8b as tools, which are attached to the outside of the hollow cylinder 12.

Im Betrieb wird ein Materialgemisch, welches aus Ersatzbrennstoff und Störstoff besteht, in die vertikal ausgerichtete zentrale Zuführung 1 eingebracht, in welcher das Materialgemisch nach unten zu der den Streuteller 14 umfassenden Trenneinrichtung 2 absinkt. Durch die gemeinsame Drehbewegung des Streutellers 14 und des die Zuführung 1 begrenzenden Hohlzylinders 12 wird das Materialgemisch spätestens beim Erreichen des Streutellers 14 radial nach außen beschleunigt. Das über die äußere radiale Kante des Streutellers 14 tretende Materialgemisch wird aufgrund des aufsteigenden Gasstromes gesichtet, sodass vor allem Störstoff in dem den Streuteller 14 umgebenden Raum nach unten absinkt, während das hauptsächlich Ersatzbrennstoff aufweisende übrige Materialgemisch mit dem Gasstrom in die erste Stufe 5.1 der Rotormühle 3 eintritt.During operation, a material mixture consisting of substitute fuel and impurities is introduced into the vertically oriented central feed 1, in which the material mixture sinks down to the separating device 2 comprising the spreading plate 14. As a result of the joint rotary movement of the spreading plate 14 and the hollow cylinder 12 delimiting the feed 1, the material mixture is accelerated radially outwards when it reaches the spreading plate 14 at the latest. The material mixture passing over the outer radial edge of the spreading plate 14 is sifted due to the rising gas flow, so that above all foreign matter in the space surrounding the spreading plate 14 sinks down, while the remaining material mixture, mainly containing substitute fuel, with the gas flow into the first stage 5.1 of the rotor mill 3 entry.

In der ersten Stufe 5.1 erfolgt eine Zerkleinerung des Materialgemischs durch Wechselwirkung mit den Werkzeugen 8a und 8b sowie untereinander. Aufgrund der vertikal und in Umfangsrichtung versetzten Anordnung der Werkzeuge 8a, 8b kann eine effektive Zerkleinerung erfolgen, wobei zerkleinertes Material durch die Gitteranordnung 10 in den Ringraum 9 hindurchtreten kann, wobei dieser Teil des Materialgemischs aus dem ersten Auslass 7.1 abgezogen wird.In the first stage 5.1, the material mixture is comminuted by interacting with the tools 8a and 8b as well as with each other. Due to the vertically and circumferentially offset arrangement of the tools 8a, 8b, effective comminution can take place, with comminuted Material can pass through the grid arrangement 10 into the annular space 9, this part of the material mixture being withdrawn from the first outlet 7.1.

Das durch die Trennvorrichtung 6 hindurchtretende Materialgemisch wird in der zweiten Stufe 5.2 weiter zerkleinert, sodass das aus dem zweiten Auslass 7.2 austretende Materialgemisch eine kleinere mittlere Partikelgröße aufweist als das aus dem ersten Auslass 7.1 austretende Materialgemisch.The material mixture passing through the separating device 6 is further comminuted in the second stage 5.2, so that the material mixture exiting from the second outlet 7.2 has a smaller mean particle size than the material mixture exiting from the first outlet 7.1.

Mit der Vorrichtung kann also nicht nur eine besonders effiziente Zerkleinerung erfolgen, es kann vielmehr auch Materialgemisch mit unterschiedlicher Partikelgröße bereitgestellt werden.The device can therefore not only be used for particularly efficient comminution, but rather a material mixture with different particle sizes can also be provided.

BezugszeichenlisteList of reference symbols

11
ZuführungFeed
22
TrenneinrichtungSeparator
33
RotormühleRotor mill
44th
StrömungseinrichtungFlow device
5.15.1
erste Stufefirst stage
5.25.2
zweite Stufesecond step
66th
TrennvorrichtungSeparator
7.17.1
erster Auslassfirst outlet
7.27.2
zweiter Auslasssecond outlet
8a8a
FlügelelementWing element
8b8b
Drahtwire
99
RingraumAnnulus
1010
GitteranordnungGrid arrangement
1111
KratzelementScraping element
1212th
HohlzylinderHollow cylinder
1313th
PrallelementImpact element
1414th
StreutellerSpreading plate
1515th
Einlassinlet

Claims (8)

Vorrichtung zum Aufbereiten eines aus Ersatzbrennstoff und Störstoff bestehenden Materialgemischs, aufweisend - eine vertikal ausgerichtete zentrale Zuführung (1), - eine unterhalb der zentralen Zuführung (1) angeordnete Trenneinrichtung (2), - eine Rotormühle (3), wobei die Rotormühle (3) oberhalb der Trenneinrichtung (2) angeordnet ist und die zentrale Zuführung (1) umgibt, - eine Strömungseinrichtung (4) zur Erzeugung eines nach oben gerichteten Gasstroms,
wobei das Materialgemisch in die Zuführung (1) einführbar ist und nach der Einführung in der Zuführung (1) zu der Trenneinrichtung (4) absinkt, wobei der Störstoff in der Trenneinrichtung (4) zumindest teilweise als eine Störstofffraktion aus dem Materialgemisch abgeschieden wird und das von den abgeschiedenen Störstoffen getrennte Materialgemisch mit dem Gasstrom zu der Rotormühle (3) aufsteigt, wobei das aufsteigende Materialgemisch in der Rotormühle (3) zerkleinert wird, wobei
die Rotormühle (3) mehrstufig ausgebildet ist und zwischen den Stufen (5.1, 5.2) der Rotormühle (3) jeweils eine Trennvorrichtung (6) angeordnet ist, wobei von der Trennvorrichtung (6) nicht zurückgehaltenes Materialgemisch in der folgenden Stufe (5.2) weiter zerkleinert wird. Apparatus for processing a material mixture consisting of substitute fuel and impurities, having - a vertically aligned central feed (1), - a separating device (2) arranged below the central feed (1), - A rotor mill (3), the rotor mill (3) being arranged above the separating device (2) and surrounding the central feed (1), - a flow device (4) for generating an upwardly directed gas flow,
wherein the material mixture can be introduced into the feed (1) and, after being introduced into the feed (1), sinks to the separating device (4) The material mixture separated from the separated contaminants rises with the gas flow to the rotor mill (3), the rising material mixture being comminuted in the rotor mill (3), wherein
the rotor mill (3) is multi-stage and a separating device (6) is arranged between the stages (5.1, 5.2) of the rotor mill (3), the material mixture not retained by the separating device (6) being further comminuted in the following stage (5.2) will. Vorrichtung nach Anspruch 1, wobei jeder Stufe (5.1, 5.2) der Rotormühle (3) mindestens ein Auslass (7.1, 7.2) zugeordnet ist.Device according to Claim 1, with at least one outlet (7.1, 7.2) being assigned to each stage (5.1, 5.2) of the rotor mill (3). Vorrichtung nach einem der vorhergehenden Ansprüche, wobei die Trennvorrichtung (6) zwischen den Stufen (5.1, 5.2) der Rotormühle (3) mindestens ein Sieb umfasst.Device according to one of the preceding claims, wherein the separating device (6) comprises at least one sieve between the stages (5.1, 5.2) of the rotor mill (3). Vorrichtung nach einem der vorhergehenden Ansprüche, wobei zumindest die erste Stufe (5.1) der Rotormühle (3) einen die Werkzeuge (8a, 8b) umgebenden Ringraum (9) aufweist, wobei bevorzugt der Ringraum (9) durch eine Gitteranordnung (10) von den Werkzeugen (8a, 8b) getrennt ist.Device according to one of the preceding claims, wherein at least the first stage (5.1) of the rotor mill (3) has an annular space (9) surrounding the tools (8a, 8b), the annular space (9) preferably being separated by a grid arrangement (10) Tools (8a, 8b) is separated. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei der Trennvorrichtung (6) zwischen den Stufen (5.1, 5.2) der Rotormühle (3) eine Säuberungseinrichtung (11) zugeordnet ist, mit der das zurückgehaltene Materialgemisch von der Trennvorrichtung (6) gelöst werden kann.Device according to one of the preceding claims, wherein the separating device (6) between the stages (5.1, 5.2) of the rotor mill (3) is assigned a cleaning device (11) with which the retained material mixture can be released from the separating device (6). Vorrichtung nach einem der vorhergehenden Ansprüche, wobei die Zuführung (1), die Trenneinrichtung (2) und die Rotormühle (3) gemeinsam um eine vertikal ausgerichtete Achse drehend antreibbar sind.Device according to one of the preceding claims, wherein the feed (1), the separating device (2) and the rotor mill (3) can be driven together to rotate about a vertically aligned axis. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei die Trenneinrichtung (2) einen drehbar antreibbaren Streuteller (14) umfasst.Device according to one of the preceding claims, wherein the separating device (2) comprises a rotatably drivable spreading plate (14). Vorrichtung nach Anspruch 7, wobei das Materialgemisch vom Streuteller (14) in einen den Streuteller (14) umgebenden Raum geschleudert wird, in dem der Gasstrom aufsteigt.Device according to Claim 7, the material mixture being thrown from the spreading plate (14) into a space surrounding the spreading plate (14) in which the gas flow rises.
EP20159282.1A 2020-02-25 2020-02-25 Device for treating a mixture of materials consisting of substitute fuel and impurities Active EP3871776B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PL20159282.1T PL3871776T3 (en) 2020-02-25 2020-02-25 Device for treating a mixture of materials consisting of substitute fuel and impurities
EP20159282.1A EP3871776B1 (en) 2020-02-25 2020-02-25 Device for treating a mixture of materials consisting of substitute fuel and impurities
BR102021003007-0A BR102021003007A2 (en) 2020-02-25 2021-02-18 DEVICE TO TREAT A MIXTURE OF MATERIAL CONSISTING OF REPLACEMENT FUEL AND CONTAMINANTS
US17/185,095 US11660605B2 (en) 2020-02-25 2021-02-25 Apparatus for processing a material mixture comprising of alternative fuel and contaminants
CN202110210052.1A CN113368997B (en) 2020-02-25 2021-02-25 Device for treating a material mixture consisting of alternative fuel and interfering substances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20159282.1A EP3871776B1 (en) 2020-02-25 2020-02-25 Device for treating a mixture of materials consisting of substitute fuel and impurities

Publications (2)

Publication Number Publication Date
EP3871776A1 true EP3871776A1 (en) 2021-09-01
EP3871776B1 EP3871776B1 (en) 2022-08-17

Family

ID=69779778

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20159282.1A Active EP3871776B1 (en) 2020-02-25 2020-02-25 Device for treating a mixture of materials consisting of substitute fuel and impurities

Country Status (5)

Country Link
US (1) US11660605B2 (en)
EP (1) EP3871776B1 (en)
CN (1) CN113368997B (en)
BR (1) BR102021003007A2 (en)
PL (1) PL3871776T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113680456B (en) * 2021-08-30 2022-10-11 安徽齐品农业发展有限公司 Anti-adhesion crushing device for grain processing
CN115508174B (en) * 2022-08-18 2023-07-14 同济大学 Novel thermal pretreatment method and equipment for organic solid waste through forced convection of hot air

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2290379A (en) * 1939-10-24 1942-07-21 Peterson Clarence John Pulverizing mill
WO2008131477A1 (en) * 2007-04-27 2008-11-06 Fibrecycle Pty Ltd Particle reduction device
DE102015005604A1 (en) * 2015-05-02 2016-11-03 Udo Voges Method and device for processing a material mixture consisting of substitute fuel and contaminant

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4245999A (en) * 1978-08-25 1981-01-20 Kenneth S. Safe, Jr. Method and apparatus for obtaining low ash content refuse fuel, paper and plastic products from municipal solid waste and said products
US5695130A (en) * 1992-07-01 1997-12-09 Csendes; Ernest Method and apparatus for the dry grinding of solids
CN2236892Y (en) * 1995-01-23 1996-10-09 夏光健 Multiple stage crushing and stage mill
US5826807A (en) * 1995-04-17 1998-10-27 Csendes; Ernest Method and apparatus for comminuting of solid particles
US5850977A (en) * 1995-04-17 1998-12-22 Csendes; Ernest Method and apparatus for comminuting solid particles
US6360975B1 (en) * 1999-06-24 2002-03-26 Ernest Csendes Method an apparatus for comminuting solid particles
WO2012054928A2 (en) * 2010-10-22 2012-04-26 Watts Kyle T Apparatus and process for demanufacturing materials from composite manufactures
CN204724243U (en) * 2015-05-04 2015-10-28 天津渤海望亚涂料有限公司 A kind of novel automatic grinding coatings system breaker
CN205948993U (en) * 2016-06-30 2017-02-15 天津开发区信达化工技术发展有限公司 Can dismantle two -level rotor breaker
EP3871777A1 (en) * 2020-02-25 2021-09-01 Aumund Fördertechnik GmbH Device for treating a mixture of materials consisting of substitute fuel and impurity

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2290379A (en) * 1939-10-24 1942-07-21 Peterson Clarence John Pulverizing mill
WO2008131477A1 (en) * 2007-04-27 2008-11-06 Fibrecycle Pty Ltd Particle reduction device
DE102015005604A1 (en) * 2015-05-02 2016-11-03 Udo Voges Method and device for processing a material mixture consisting of substitute fuel and contaminant

Also Published As

Publication number Publication date
EP3871776B1 (en) 2022-08-17
CN113368997B (en) 2024-06-18
US11660605B2 (en) 2023-05-30
BR102021003007A2 (en) 2021-09-08
PL3871776T3 (en) 2022-11-21
CN113368997A (en) 2021-09-10
US20210260596A1 (en) 2021-08-26

Similar Documents

Publication Publication Date Title
EP2851122B1 (en) Comminuting device
DE60300809T2 (en) Apparatus for recovering plasterboard
DE102012104031B4 (en) Separating device for material conglomerates
DE903681C (en) Method and device for sieving by wet means
EP2668445B1 (en) Processing of waste incineration ashes
EP3871776B1 (en) Device for treating a mixture of materials consisting of substitute fuel and impurities
EP2646234B1 (en) Device and method for separating composite materials
DE102011050789A1 (en) Device for the mechanical separation of material conglomerates from materials of different density and / or consistency
EP3871777A1 (en) Device for treating a mixture of materials consisting of substitute fuel and impurity
EP2415526A1 (en) Apparatus for milling material
WO2019207108A1 (en) System and method for an electrodynamic fragmentation
EP1088043B1 (en) Installation and method for preparing remaining material from a thermal waste disposal facility
DE4217703C2 (en) Process and device for the pretreatment of polluted soils
DE3836608C2 (en)
DE102012204050B4 (en) Apparatus and method for processing silicon pieces
DE102016225248A1 (en) Separator for polysilicon
EP0764470B1 (en) Process for impact milling and impact mill
EP0964748B1 (en) Method and device for fragmenting bulk materials
EP3431656A1 (en) Device for the treatment of ballast stones and method therefore
WO2000074854A1 (en) Device for tearing metallic scrap
DE10018005A1 (en) Method and device for reducing splinter material to powder feeds material to be processed through an inlet in an external wall into a processing chamber for shredding by a rotor.
EP0692309A1 (en) Process for impactmilling and impactmill
DE4231100A1 (en) Sepg. fibrous and spike components from fossil fuel, esp. xylitol from lignite - by comminuting on rotor fan mill, sepg. coarse spike or fibrous components on shaking screen, and passing remainder to centrifugal sieve
WO2016066806A1 (en) Method for handling slag and grate riddlings of a refuse incinerator and refuse incinerator
EP2180962A1 (en) Process and plant for obtaining metal parts from residues of waste incineration processes

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

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

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

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

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20211118

RBV Designated contracting states (corrected)

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

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: B02C 13/28 20060101ALI20220413BHEP

Ipc: B02C 13/288 20060101ALI20220413BHEP

Ipc: B02C 23/30 20060101ALI20220413BHEP

Ipc: B02C 23/16 20060101ALI20220413BHEP

Ipc: B02C 13/284 20060101ALI20220413BHEP

Ipc: B02C 13/16 20060101ALI20220413BHEP

Ipc: B02C 13/14 20060101AFI20220413BHEP

INTG Intention to grant announced

Effective date: 20220512

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

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: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502020001518

Country of ref document: DE

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: AT

Ref legal event code: REF

Ref document number: 1511807

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220915

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

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: 20220817

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: 20220817

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: 20221219

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: 20221117

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: 20220817

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: 20220817

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: 20220817

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

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: 20221217

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: 20220817

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: 20221118

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: 20220817

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: 20220817

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: 20220817

Ref country code: DK

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: 20220817

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: 20220817

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502020001518

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: 20220817

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: 20220817

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

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: 20220817

26N No opposition filed

Effective date: 20230519

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: 20220817

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: 20220817

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: LI

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

Effective date: 20230228

Ref country code: CH

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

Effective date: 20230228

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: 20230225

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

Ref country code: LU

Payment date: 20240220

Year of fee payment: 5

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

Ref country code: NL

Payment date: 20240220

Year of fee payment: 5

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

Ref country code: DE

Payment date: 20240216

Year of fee payment: 5

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

Ref country code: TR

Payment date: 20240209

Year of fee payment: 5

Ref country code: PL

Payment date: 20240215

Year of fee payment: 5

Ref country code: IT

Payment date: 20240229

Year of fee payment: 5

Ref country code: FR

Payment date: 20240222

Year of fee payment: 5

Ref country code: BE

Payment date: 20240219

Year of fee payment: 5