DE102010017479A1 - Method for separating rubber and metal in the context of recycling old steel rope conveyor belts - Google Patents
Method for separating rubber and metal in the context of recycling old steel rope conveyor belts Download PDFInfo
- Publication number
- DE102010017479A1 DE102010017479A1 DE201010017479 DE102010017479A DE102010017479A1 DE 102010017479 A1 DE102010017479 A1 DE 102010017479A1 DE 201010017479 DE201010017479 DE 201010017479 DE 102010017479 A DE102010017479 A DE 102010017479A DE 102010017479 A1 DE102010017479 A1 DE 102010017479A1
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- DE
- Germany
- Prior art keywords
- steel
- conveyor belt
- rubber
- conveyor
- screenings
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B17/0412—Disintegrating plastics, e.g. by milling to large particles, e.g. beads, granules, flakes, slices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
- B29B2017/0213—Specific separating techniques
- B29B2017/0217—Mechanical separating techniques; devices therefor
- B29B2017/0224—Screens, sieves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
- B29B2017/0213—Specific separating techniques
- B29B2017/0268—Separation of metals
- B29B2017/0272—Magnetic separation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
- B29K2705/08—Transition metals
- B29K2705/12—Iron
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/709—Articles shaped in a closed loop, e.g. conveyor belts
- B29L2031/7092—Conveyor belts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
Die Erfindung betrifft ein Verfahren zum Trennen von Gummi und Metall im Rahmen der Wiederverwertung von Alt-Stahlseil-Fördergurten, wobei der Fördergurt eine tragseitige und laufseitige Gummideckplatte sowie einen eingebetteten Zugträger in Form von Stahlseilen umfasst, wobei der Stahlseil-Fördergurt in einen bearbeitbaren Fördergurtabschnitt (1) überführt wird. Das erfindungsgemäße Verfahren zeichnet sich dabei durch wenigstens folgende Verfahrensschritte aus: – der Fördergurtabschnitt (1) wird insbesondere mittels einer Wickelvorrichtung (2) und einer Fördervorrichtung (3) einem Schredder (4), der insbesondere mit wenigstens zwei Walzen (5) versehen ist, zugeführt, wo dieser in kleine Stücke unter Bildung eines Schnittgutes geschnitten wird; – das Schnittgut wird einem Walkkratzer (6) zugeführt, in dem der Gummi mittels eines Rotors (7) von den Stahlseilen geschabt wird; – mittels eines Siebes (8) werden die großstückigen und nichtsiebbaren Stahlseile von dem Gummi und den kleinstückigen Stahlseilresten sowie von eventuell vorhandenen textilen Werkstoffen, die alle als Siebgut unter Pressdruck durch die Siebmaschen dringen, getrennt; – das gesamte Siebgut wird auf einer Fördervorrichtung (9) an einem Magnetabscheider (10) vorbeigeführt, wobei die kleinstückigen Stahlseilreste aus dem Siebgut entfernt werden; – schließlich wird das im Wesentlichen stahlfreie Siebgut in einem Granulator (11) endbearbeitet.The invention relates to a method for separating rubber and metal as part of the recycling of old steel cord conveyor belts, the conveyor belt comprising a support-side and running-side rubber cover plate as well as an embedded tension member in the form of steel cables, the steel cord conveyor belt being divided into a machinable conveyor belt section ( 1) is transferred. The method according to the invention is characterized by at least the following method steps: the conveyor belt section (1) is in particular a shredder (4), which is provided in particular with at least two rollers (5), by means of a winding device (2) and a conveyor device (3), fed, where it is cut into small pieces to form a cut material; - The cut material is fed to a fulling scraper (6) in which the rubber is scraped off the steel cables by means of a rotor (7); - By means of a sieve (8), the large-sized and non-screenable steel cables are separated from the rubber and the small-sized steel cable remnants as well as from any textile materials that may be present, all of which penetrate the screen meshes under pressure as screenings; - The entire material to be screened is guided past a magnetic separator (10) on a conveying device (9), the small pieces of steel cable remnants being removed from the material to be screened; - Finally, the essentially steel-free material to be screened is finished in a granulator (11).
Description
Die Erfindung betrifft ein Verfahren zum Trennen von Gummi und Metall im Rahmen der Wiederverwertung von Alt-Stahlseil-Fördergurten, wobei der Fördergurt eine tragseitige und laufseitige Gummideckplatte sowie einen eingebetteten Zugträger in Form von Stahlseilen umfasst, wobei der Stahlseil-Fördergurt in einen bearbeitbaren Fördergurtabschnitt überführt wird.The invention relates to a method for separating rubber and metal in the context of the recycling of old steel cable conveyor belts, wherein the conveyor belt comprises a support side and running side rubber cover plate and an embedded tensile member in the form of steel cables, wherein the steel cable conveyor belt converted into an editable Fördergurtabschnitt becomes.
Es ist seit langem bekannt, Altreifen als Zusatz für die Befeuerung von Zementöfen und zur Energieerzeugung zu verwenden. Der Heizwert von Reifen liegt rund ein Viertel über dem von Kohle. Der Stickoxidausstoß ist zudem niedriger. Es ist eine wirtschaftliche und umweltfreundliche Methode. Insbesondere für Zementwerke ist die Verbrennung von Reifen nützlich, weil die bessere Kalzinierung zu einem besseren Produkt führt und die Anlagen weniger beansprucht werden. Aus diesem Grunde wird die Verwendung von Altreifen als Brennstoffalternative gesehen.It has long been known to use waste tires as an additive for firing cement kilns and for power generation. The calorific value of tires is about a quarter higher than that of coal. The nitrogen oxide emissions are also lower. It is an economical and environmentally friendly method. Especially for cement plants, the burning of tires is useful because the better calcination results in a better product and less stress on the equipment. For this reason, the use of scrap tires is seen as a fuel alternative.
Außer zur Energiegewinnung ist der Gummianteil durch verschiedene Methoden zur Wiederverwertung aufbereitbar, beispielsweise durch Devulkanisation oder durch Pyrolyse.Except for energy, the rubber portion is prepared by various methods for recycling, for example, by devulcanization or by pyrolysis.
In der Patentschrift
Alt-Stahlseil-Fördergurte fallen jährlich in hunderte von Kilometern an. Diese Fördergurte bestehen aus einer tragseitigen und laufseitigen Gummideckplatte und eingebetteten Stahlseilen. Der Nachteil ausgedienter Stahlseil-Fördergurte ist nun darin zu sehen, dass die Stahlseile nicht für die Energiegewinnung geeignet sind. Ferner sind diese nicht für die Zuführung für den Ofen portioniert wie Reifen, sondern fallen in Breiten von 800 bis 3200 mm, in Dicken von 10 bis 50 mm und in Längen von mehreren hundert Metern an.Old steel cable conveyor belts accumulate annually in hundreds of kilometers. These conveyor belts consist of a load-side and running-side rubber cover plate and embedded steel cables. The disadvantage of disused steel rope conveyor belts can now be seen in the fact that the steel cables are not suitable for energy production. Furthermore, these are not portioned for feeding to the oven like tires, but fall in widths of 800 to 3200 mm, in thicknesses of 10 to 50 mm and in lengths of several hundred meters.
In der Offenlegungsschrift
Nachteilig bei diesem Verfahren ist jedoch, dass die zu bearbeitenden Fördergurtabschnitte mit unterschiedlich dicken Gummideckschichten anfallen, die isolierend wirken und somit eine längere Einwirkdauer der Kälte erforderlich machen, was dann die Grenzen der Wirtschaftlichkeit aufzeigt.A disadvantage of this method, however, is that the Fördergurtabschnitte to be processed incurred with different thicknesses rubber cover layers, which act insulating and thus make a longer exposure time of the cold required, which then shows the limits of efficiency.
Im Rahmen einer Weiterentwicklung zeichnet sich das neue Verfahren durch wenigstens folgende Verfahrensschritte aus:
- – der Fördergurtabschnitt wird einem Schredder zugeführt, wo dieser in kleine Stücke unter Bildung eines Schnittgutes geschnitten wird;
- – das Schnittgut wird einem Walkkratzer zugeführt, in dem der Gummi mittels eines Rotors von den Stahlseilen geschabt wird;
- – mittels eines Siebes werden die großstückigen und nichtsiebbaren Stahlseile von dem zerkleinerten Gummi und den kleinstückigen Stahlseilresten sowie von eventuell vorhandenen zerkleinerten textilen Werkstoffen, die alle als Siebgut unter Pressdruck durch die Siebmaschen dringen, getrennt;
- – das gesamte Siebgut wird auf einer Fördervorrichtung an einem Magnetabscheider vorbeigeführt, wobei die kleinstückigen Stahlseilreste aus dem Siebgut entfernt werden;
- – schließlich wird das im Wesentlichen stahlfreie Siebgut in einem Granulator endberbeitet.
- The conveyor belt section is fed to a shredder where it is cut into small pieces to form a cut material;
- - The clippings are fed to a Walkkratzer in which the rubber is scraped by a rotor of the steel cables;
- - By means of a sieve, the large and nondesible steel cables of the crushed rubber and the small pieces of steel rope remnants and any existing crushed textile materials, all of which penetrate as screenings under pressure through the sieve mesh, separated;
- - The entire screenings is passed on a conveyor to a magnetic separator, the small pieces of steel rope remnants are removed from the screenings;
- - Finally, the essentially steel-free screenings endberbeitet in a granulator.
Die einzelnen Verfahrensschritte werden nun in Verbindung mit einem schematisch dargestellten Verfahrensablauf unter Einbezug vorteilhafter Verfahrensabläufe näher erläutert.The individual method steps will now be explained in more detail in connection with a schematically illustrated process sequence, taking into account advantageous process sequences.
Der Fördergurt wird üblicherweise aus der Förderanlage in ungefähr gleich große Stücke von 50 bis 400 m Länge zerteilt. Auch andere Längen sind möglich, beispielsweise von Kleinlängen von 20 bis 50 m.The conveyor belt is usually cut from the conveyor into approximately equal pieces of 50 to 400 m in length. Other lengths are possible, for example, from small lengths of 20 to 50 m.
Ein auf diese Weise gebildeter Fördergurtabschnitt
Im Rahmen des Verfahrens der Wiederverwertung wird der Fördergurtabschnitt
Das Schnittgut wird nun einem Walkkratzer
Mittels eines Siebes
Das gesamte Siebgut wird auf einer Fördervorrichtung
Schließlich wird das im Wesentlichen stahlfreie Siebgut, das gegebenenfalls lediglich geringe Mengen an Stahlpulver enthalten kann, in einem Granulator
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Fördergurtabschnitt (Wickelware)Conveyor belt section (wound goods)
- 22
- Wickelvorrichtungwinder
- 33
- Fördervorrichtungconveyor
- 44
- Schreddershredder
- 55
- Walzenroll
- 66
- WalkkratzerWalk scratches
- 77
- Rotorrotor
- 88th
- Siebscree
- 99
- Fördervorrichtungconveyor
- 1010
- MagnetabscheiderMagnetic separator
- 1111
- Granulatorgranulator
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 4433961 C2 [0004] DE 4433961 C2 [0004]
- DE 102006028503 A1 [0006] DE 102006028503 A1 [0006]
- DE 102004037217 A1 [0011] DE 102004037217 A1 [0011]
- DE 102006044110 A1 [0014] DE 102006044110 A1 [0014]
Claims (4)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010017479.3A DE102010017479B4 (en) | 2010-06-21 | 2010-06-21 | Method for separating rubber and metal in the context of recycling old steel rope conveyor belts |
PCT/EP2011/056890 WO2011160876A1 (en) | 2010-06-21 | 2011-05-02 | Method for separating rubber and metal in the recycling of scrap steel cord conveyor belts |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010017479.3A DE102010017479B4 (en) | 2010-06-21 | 2010-06-21 | Method for separating rubber and metal in the context of recycling old steel rope conveyor belts |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102010017479A1 true DE102010017479A1 (en) | 2011-12-22 |
DE102010017479B4 DE102010017479B4 (en) | 2017-04-06 |
Family
ID=44118955
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102010017479.3A Active DE102010017479B4 (en) | 2010-06-21 | 2010-06-21 | Method for separating rubber and metal in the context of recycling old steel rope conveyor belts |
Country Status (2)
Country | Link |
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DE (1) | DE102010017479B4 (en) |
WO (1) | WO2011160876A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011053143A1 (en) | 2011-08-31 | 2013-02-28 | Contitech Transportbandsysteme Gmbh | Method for shredding rubber and metal in recycling of old steel cord conveyor belts, involves converting steel cord-conveyor belt into editable conveyor sections for being transferred to winding device |
CN104511428A (en) * | 2015-01-14 | 2015-04-15 | 华能桐乡燃机热电有限责任公司 | Sorting device of back-pressure steam turbine |
DE102017101562A1 (en) | 2017-01-26 | 2018-07-26 | Forbo Siegling Gmbh | Method for producing and / or recycling a conveyor belt and conveyor belt |
CN112192784A (en) * | 2020-09-25 | 2021-01-08 | 天长市永南橡塑制品有限公司 | Impurity removing device for rubber blocks of tire |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2715125C1 (en) * | 2019-06-19 | 2020-02-25 | федеральное государственное бюджетное образовательное учреждение высшего образования "Донской государственный технический университет", (ДГТУ) | Method of recycling wastes in form of crushed metal cord from mechanical processing of tires and device for its implementation |
Citations (4)
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DE4433961C2 (en) | 1994-09-23 | 2000-10-19 | Phoenix Ag | Process for the production of molded articles and flat goods from a recycling mixture |
DE102004037217A1 (en) | 2004-07-30 | 2006-03-23 | Phoenix Ag | winder |
DE102006028503A1 (en) | 2006-06-21 | 2007-12-27 | Siemens Ag | Device and method for charging an energy store |
DE102006044110A1 (en) | 2006-09-20 | 2008-03-27 | Phoenix Conveyor Belt Systems Gmbh | Conveyor belt with transverse reinforcement |
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DD228213A1 (en) * | 1984-01-20 | 1985-10-09 | Senftenberg Braunkohle | DEVICE FOR DISCONNECTING THE COATING LAYERS OF FOUNDRY BELTS |
WO1991005818A1 (en) * | 1989-10-10 | 1991-05-02 | John Geza Dobozy | Method and apparatus for recovering elastomeric material |
DE4417522C2 (en) * | 1994-05-19 | 1996-10-02 | Steil Theo Gmbh | Process for the preparation of composite rubber material with reinforcing inserts |
DE10219440A1 (en) * | 2002-04-26 | 2003-11-13 | Peggy Diana Berndt | Process and plant for low-temperature pyrolysis of rubber products, steel-rubber composites and the like |
CN100556745C (en) * | 2005-02-03 | 2009-11-04 | 杰斯托米克有限公司 | The anchor clamps that are used for bicycle handle |
DE102006028583A1 (en) | 2006-06-22 | 2007-12-27 | Bayerische Motoren Werke Ag | Method for functional testing of a pressure transducer |
DE102006028563A1 (en) * | 2006-06-22 | 2007-12-27 | Phoenix Conveyor Belt Systems Gmbh | Recycling of rubber and metal from steel-reinforced rubber wastes, pre-comminutes coarsely, embrittles rubber in cold chamber and breaks rubber away using deflection rollers |
-
2010
- 2010-06-21 DE DE102010017479.3A patent/DE102010017479B4/en active Active
-
2011
- 2011-05-02 WO PCT/EP2011/056890 patent/WO2011160876A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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DE4433961C2 (en) | 1994-09-23 | 2000-10-19 | Phoenix Ag | Process for the production of molded articles and flat goods from a recycling mixture |
DE102004037217A1 (en) | 2004-07-30 | 2006-03-23 | Phoenix Ag | winder |
DE102006028503A1 (en) | 2006-06-21 | 2007-12-27 | Siemens Ag | Device and method for charging an energy store |
DE102006044110A1 (en) | 2006-09-20 | 2008-03-27 | Phoenix Conveyor Belt Systems Gmbh | Conveyor belt with transverse reinforcement |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011053143A1 (en) | 2011-08-31 | 2013-02-28 | Contitech Transportbandsysteme Gmbh | Method for shredding rubber and metal in recycling of old steel cord conveyor belts, involves converting steel cord-conveyor belt into editable conveyor sections for being transferred to winding device |
CN104511428A (en) * | 2015-01-14 | 2015-04-15 | 华能桐乡燃机热电有限责任公司 | Sorting device of back-pressure steam turbine |
DE102017101562A1 (en) | 2017-01-26 | 2018-07-26 | Forbo Siegling Gmbh | Method for producing and / or recycling a conveyor belt and conveyor belt |
WO2018138262A1 (en) | 2017-01-26 | 2018-08-02 | Forbo Siegling Gmbh | Method for producing and/or recycling a conveyor belt, and conveyor belt |
DE102017101562B4 (en) | 2017-01-26 | 2022-03-03 | Forbo Siegling Gmbh | Process for manufacturing and/or recycling a conveyor belt and conveyor belt |
US11396149B2 (en) | 2017-01-26 | 2022-07-26 | Forbo Siegling Gmbh | Method for producing and/or recycling a conveyor belt, and conveyor belt |
CN112192784A (en) * | 2020-09-25 | 2021-01-08 | 天长市永南橡塑制品有限公司 | Impurity removing device for rubber blocks of tire |
Also Published As
Publication number | Publication date |
---|---|
DE102010017479B4 (en) | 2017-04-06 |
WO2011160876A1 (en) | 2011-12-29 |
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