EP0528808A1 - Process for preparing rubber-containing waste for further treatment - Google Patents

Process for preparing rubber-containing waste for further treatment

Info

Publication number
EP0528808A1
EP0528808A1 EP91906707A EP91906707A EP0528808A1 EP 0528808 A1 EP0528808 A1 EP 0528808A1 EP 91906707 A EP91906707 A EP 91906707A EP 91906707 A EP91906707 A EP 91906707A EP 0528808 A1 EP0528808 A1 EP 0528808A1
Authority
EP
European Patent Office
Prior art keywords
waste
screw press
rubber
cooling
screw
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.)
Withdrawn
Application number
EP91906707A
Other languages
German (de)
French (fr)
Inventor
Wilfried Schraufstetter
Dieter Gastinger
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0528808A1 publication Critical patent/EP0528808A1/en
Withdrawn legal-status Critical Current

Links

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
    • B29B17/04—Disintegrating plastics, e.g. by milling
    • B29B17/0404—Disintegrating plastics, e.g. by milling to powder
    • B29B17/0408—Disintegrating plastics, e.g. by milling to powder using cryogenic systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00—Other disintegrating devices or methods
    • B02C19/18—Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
    • B02C19/186—Use of cold or heat for disintegrating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00—Other disintegrating devices or methods
    • B02C19/22—Crushing mills with screw-shaped crushing means
    • 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
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
    • F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
    • F25D3/11—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air with conveyors carrying articles to be cooled through the cooling space
    • 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
    • B29B2017/0424—Specific disintegrating techniques; devices therefor
    • B29B2017/046—Extruder as pressing tool with calibrated die openings for forming and disintegrating pasty or melted material
    • 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
    • B29L2030/00—Pneumatic or solid tyres or parts thereof
    • 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

Definitions

  • the invention relates to a method for processing rubber-containing waste for further processing.
  • Rubber-containing waste such as used rubber, car tires, reinforced rubber seals e.g. for windows and doors, in particular also of automobiles, rubber-containing hoses such as oil hoses, or the like. is currently more or less pre-shredded depending on the subsequent processing and further use. The waste is then partially, still further processed, an attempt being made to separate the individual components of the waste materials.
  • metals such as iron, steel or iron wires, plastics, fibers, nonwovens or the like can also be used. to be available.
  • the mixture of the individual components emerging from the mill is then separated.
  • ice parts can be pulled out by means of a magnet. Fibers or the like can be suctioned off if necessary.
  • the mixture of individual components can also be separated by sieving.
  • the mills have a very large volume in the work area, which is why a great deal of coolant, such as liquid nitrogen or the like. must be admitted.
  • the invention is therefore based on the object of providing a method for processing rubber-containing waste for further processing which is more economical in terms of energy consumption and in which less coolant, such as nitrogen or the like. is needed.
  • the process according to the invention reduces the consumption of liquid nitrogen or other coolant to far less than 50% of the coolant quantity which was previously the case with the known processes, such as grinding in mills or the like. was necessary since the free volume between the waste parts in the screw press is reduced to a very great extent and is even reduced to a few volume percentages.
  • the metallic components are exposed from the other components.
  • the rubber is also ground and pressed so strongly that plastic and / or fiber components separate from it.
  • liquid nitrogen is added to the waste for cooling.
  • Nitrogen has a boiling point of -195.8 ° C.
  • the waste material can be cooled to around -120 ° C by using liquid nitrogen. It emerges from the screw press at a temperature of around 50 ° C.
  • temperatures as low as necessary are not necessary, such as in the preparation of Used tires, the rubber of which is already brittle, are mixed with cold water for cooling.
  • the coolant can be mixed with the waste even before the waste is fed into the screw press, an optimal cooling of the waste parts resulting from an intimate mixing between the waste parts and the coolant.
  • vulcanization or post-vulcanization can also be prevented when grinding the waste in a screw press.
  • part of the coolant such as liquid nitrogen or water
  • the residual liquid is separated from the solid parts after exiting the screw press.
  • the solid waste is preferably pre-crushed before being fed into the screw press, the rubber-containing waste e.g. is introduced into the screw press in granular form. This not only makes it easier to introduce the waste into the screw press, but moreover the smaller parts can be cooled more easily and more quickly.
  • the components emerging from the screw press are also easier to separate from one another.
  • the granules from rubber-containing waste, e.g. Old tires can have a diameter of 10 mm to 40 mm.
  • the metallic components are also in a smaller form, so that they can be more easily separated from the other components by magnets or by sieving.
  • the pressure on the waste can be up to 100 bar in the screw press.
  • the air present between the granulate parts is extracted from the waste to be fed into the screw press. If there is air in the screw press, the temperature in the screw press increases Screw press too strong, which is why more coolant would have to be added.
  • the liquid evaporates like water or liquid nitrogen. This evaporated liquid is advantageously collected and cooled again.
  • the components of the screw press such as screw casing, screw or the like, are also preferably used. through liquid nitrogen, cold water or the like, which is conducted in cooling channels. cooled, which not only improves the cooling, but the coolant can also be reused without cleaning.
  • the mixture of the individual waste components emerging from the screw press is then subjected to a separation process, such as sieving, extraction of the metallic parts by magnets or the like. subject.
  • the screw press can e.g. a training as described in WO-A-83 / 03.999, DE-A-3.714.508, DE-A-3.714.509 and DE-A-3.714.518. It is a screw press with two screws arranged parallel to each other. However, other screw presses can also be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Selon un procédé de préparation de déchets contenant du caoutchouc pour des traitements ultérieurs, on met à profit la fragilité de composants individuels des déchets en refroidissant les déchets à préparer. Les déchets contenant du caoutchouc sont moulus dans une extrudeuse, sont refroidis au moins dans l'extrudeuse et sont le cas échéant fragmentés au préalable avant leur introduction dans l'extrudeuse. Afin de refroidir les déchets, on y ajoute de l'azote liquide ou de l'eau. Ce procédé consomme peu d'énergie et moins de produits réfrigérants, tels que l'azote ou similaires.According to a method for preparing waste containing rubber for subsequent treatments, the fragility of individual components of the waste is exploited by cooling the waste to be prepared. The waste containing rubber is ground in an extruder, is cooled at least in the extruder and is optionally fragmented beforehand before being introduced into the extruder. To cool the waste, add liquid nitrogen or water. This process consumes little energy and less refrigerants, such as nitrogen or the like.

Description

Verfahren zum Aufbereiten gummihaltigen Abfalls für die Process for processing rubber containing waste for the
WeiterverarbeitungFurther processing
Beschreibungdescription
Die Erfindung betrifft ein Verfahren zum Aufbereiten gummihaltigen Abfalls für die Weiterverarbeitung.The invention relates to a method for processing rubber-containing waste for further processing.
Gummihaitiger Abfall, wie Altgummi, Autoreifen, ver¬ stärkte Gummidichtungen z.B. für Fenster und Türen insbe¬ sondere auch von Automobilen, gummihaltige Schläuche wie Ölschläuche, od.dgl. wird zur Zeit in der Regel je nach späterer Weiterverarbeitung und Weiterverwendung mehr oder weniger vorzerkleinert. Danach wird der Abfall teilweise, noch weiter aufbereitet, wobei versucht wird, die einzel¬ nen Bestandteile der Abfallmaterialien zu trennen. So kön¬ nen neben Gummibestandteilen, noch Metalle, wie Eisen, Stahl- oder Eisendrähte, Kunststoffe, Fasern, Vliese od.dg. vorhanden sein.Rubber-containing waste, such as used rubber, car tires, reinforced rubber seals e.g. for windows and doors, in particular also of automobiles, rubber-containing hoses such as oil hoses, or the like. is currently more or less pre-shredded depending on the subsequent processing and further use. The waste is then partially, still further processed, an attempt being made to separate the individual components of the waste materials. In addition to rubber components, metals such as iron, steel or iron wires, plastics, fibers, nonwovens or the like can also be used. to be available.
Es ist schon bekannt, gummihaltige Abfälle in Mühlen zu mahlen oder zu zerschlagen, wobei der Abfall vorher und gleichzeitig gekühlt bzw. tiefgekühlt wird, um die Spröd- heit des kalten Gummis auszunutzen und insbesondere ein Vulkanisieren des Gummis oder ein Verschmelzen des eventu¬ ell vorhandenen Kunststoffes zu" verhindern. Auch wird durch das"Kühlen des Abfalls die Sprödheit insbesondere des Gummis erhöht, wodurch sich dieses leichter von den metallischen Bestandteilen trennen läßt. Dabei werden ins¬ besondere die metallischen Bestandteile von den Gummi- und sonstigen Bestandteilen freigelegt und getrennt. Das Küh¬ len erfolgt je nach notwendiger Temperatur durch Zugabe von kaltem Wasser oder flüssigem Stickstoff od.dgl..It is already known to grind or break up rubber-containing waste in mills, the waste being cooled beforehand and simultaneously or deep-frozen in order to take advantage of the brittleness of the cold rubber and in particular vulcanizing the rubber or fusing the possibly present To prevent plastic ". Also, the " cooling of the waste increases the brittleness, especially of the rubber, which makes it easier to separate it from the metallic components. The metallic components in particular are exposed and separated from the rubber and other components. The cooling takes place depending on the necessary temperature by adding cold water or liquid nitrogen or the like.
Das aus der Mühle austretende Gemisch der einzelnen Bestandteile wird danach getrennt. Dabei können z.B. Eis¬ enteile mittels eines Magneten herausgezogenen werden. Fa¬ sern od.dgl. können gegebenenfalls abgesaugt werden. Das Gemisch aus Einzelbestandteilen kann auch durch Sieben ge¬ trennt werden. Die Mühlen weisen jedoch im Arbeitsraum ein sehr großes Volumen auf, weshalb sehr viel Kühlmittel, wie flüssiger Stickstoff od.dgl. zugegeben werden muß.The mixture of the individual components emerging from the mill is then separated. For example, ice parts can be pulled out by means of a magnet. Fibers or the like can be suctioned off if necessary. The mixture of individual components can also be separated by sieving. However, the mills have a very large volume in the work area, which is why a great deal of coolant, such as liquid nitrogen or the like. must be admitted.
Der Erfindung liegt deshalb die Aufgabe zugrunde, ein Verfahren zum Aufbereiten gummihaltigen Abfalls für die Weiterverarbeitung zu schaffen, welches sparsamer im Ener¬ gieverbrauch ist und bei dem weniger Kühlmittel, wie Stickstoff od.dgl. benötigt wird.The invention is therefore based on the object of providing a method for processing rubber-containing waste for further processing which is more economical in terms of energy consumption and in which less coolant, such as nitrogen or the like. is needed.
Diese Aufgabe wird durch das im Anspruch 1 beschrie¬ bene Verfahren gelöst. Bei diesem Verfahren zum Aufberei¬ ten gummihaltigen Abfalls für die Weiterverarbeitung wird der gummihaltige Abfall in einer Schneckenpresse gemahlen und der Abfall wird mindestens in.der Schneckenpresse ge¬ kühlt. : '■ This object is achieved by the method described in claim 1. In this method for processing rubber-containing waste for further processing, the rubber-containing waste is ground in a screw press and the waste is cooled at least in the screw press. : '■
Durch das erfindungsgemäße Verfahren wird der Ver¬ brauch von flüssigem Stickstoff oder sonstigen Kühlmittel auf weit weniger als 50 % der Kühlmittelmenge reduziert, die bisher bei den bekannten Verfahren, wie dem Mahlen in Mühlen od.dgl. notwendig war, da das freie Volumen zwi¬ schen den Abfallteilen in der Schneckenpresse auf sehr stark reduziert wird und sogar auf wenige Volumenprozente verringert wird. In der Schneckenpresse werden insbesonde¬ re die metallischen Bestandteile von den anderen Bestand¬ teilen freigelegt. Auch wird der Gummi so stark gemahlen und gepreßt, daß sich Kunststoff- und / oder Faserbestand- teile von ihm trennen.The process according to the invention reduces the consumption of liquid nitrogen or other coolant to far less than 50% of the coolant quantity which was previously the case with the known processes, such as grinding in mills or the like. was necessary since the free volume between the waste parts in the screw press is reduced to a very great extent and is even reduced to a few volume percentages. In the screw press, in particular, the metallic components are exposed from the other components. The rubber is also ground and pressed so strongly that plastic and / or fiber components separate from it.
Gemäß einer ersten Ausführungsform des erfindungsge¬ mäßen Verfahrens wird dem Abfall flüssiger Stickstoff zur Kühlung beigemischt. Stickstoff hat einen Siedepunkt von -195,8 °C. Durch die Benutzung von flüssigem Stickstoff kann das Abfallmaterial auf circa -120 °C gekühlt werden. Es tritt aus der Schneckenpresse mit einer Temperatur von circa 50 °C aus.According to a first embodiment of the method according to the invention, liquid nitrogen is added to the waste for cooling. Nitrogen has a boiling point of -195.8 ° C. The waste material can be cooled to around -120 ° C by using liquid nitrogen. It emerges from the screw press at a temperature of around 50 ° C.
Gemäß einer anderen Ausführungsform des erfindungsge¬ mäßen Verfahrens wird dann, wenn keine so tiefen Tempera¬ turen notwendig sind, wie z.B. bei der Aufbereitung von Altreifen, deren Gummi schon spröder ist, dem Abfall kal¬ tes Wasser zur Kühlung beigemischt.According to another embodiment of the method according to the invention, when temperatures as low as necessary are not necessary, such as in the preparation of Used tires, the rubber of which is already brittle, are mixed with cold water for cooling.
Das Kühlmittel kann schon vor dem Eingeben des Ab¬ falls in die Schneckenpresse mit dem Abfall gemischt wer¬ den, wobei sich bei einer innigen Vermischung zwischen den Abfallteilen und dem Kühlmittel eine optimale Kühlung der Abfallteile ergibt.The coolant can be mixed with the waste even before the waste is fed into the screw press, an optimal cooling of the waste parts resulting from an intimate mixing between the waste parts and the coolant.
Durch das besondere Kühlen kann auch beim Mahlen des Abfalles in einer Schneckenpresse ein Vulkanisieren bzw. Nachvlkanisieren verhindert werden.Due to the special cooling, vulcanization or post-vulcanization can also be prevented when grinding the waste in a screw press.
Beim Mahlen in der Schneckenpresse verdampft ein Teil des Kühlmittel wie flüssiger Stickstoff oder Wasser schon in der Schneckenpresse. Die Restflüssigkeit wi-rd nach dem Austreten aus der Schneckenpresse von den festen Teilen abgetrennt.When grinding in the screw press, part of the coolant, such as liquid nitrogen or water, evaporates in the screw press. The residual liquid is separated from the solid parts after exiting the screw press.
Vorzugsweise wird der feste Abfall vor dem Eingeben in die Schneckenpresse vorzerkleinert, wobei der gummihal¬ tige Abfall z.B. in granulierter Form in die Schnecken¬ presse eingeführt wird. Dadurch läßt sich der Abfall nicht nur leichter in die Schneckenpresse einführen, sondern die kleineren Teile können darüberhinaus leichter und schnel¬ ler gekühlt werden. Auch lassen sich die aus der Schnek- kenpresse austretenden Bestandteile leichter voneinander trennen. Das Granulat aus gummihaltigen Abfällen, wie z.B. Altreifen kann einen Durchmesser von 10 mm bis 40 mm auf¬ weisen. Dadurch liegen auch die metallischen Bestandteile in kleinerer Form vor, sodaß sie sich leichter von den an¬ deren Bestandteilen durch Magnete oder durch Aussieben trennen lassen.The solid waste is preferably pre-crushed before being fed into the screw press, the rubber-containing waste e.g. is introduced into the screw press in granular form. This not only makes it easier to introduce the waste into the screw press, but moreover the smaller parts can be cooled more easily and more quickly. The components emerging from the screw press are also easier to separate from one another. The granules from rubber-containing waste, e.g. Old tires can have a diameter of 10 mm to 40 mm. As a result, the metallic components are also in a smaller form, so that they can be more easily separated from the other components by magnets or by sieving.
Der Druck auf den Abfall kann in der Schneckenpresse bis zu 100 bar betragen.The pressure on the waste can be up to 100 bar in the screw press.
Gemäß einer besonderen Ausführungsform des Verfahrens wird die zwischen den Granulatteilen vorhandene Luft, zu¬ meist wärmere Umgebungsluft, dem in die Schneckenpresse einzugebenden Abfall entzogen. Ist nämlich Luft in der Schneckenpresse vorhanden, so steigt die Temperatur in der Schneckenpresse zu stark an, weshalb noch mehr Kühlmittel beigemischt werden müßte.According to a special embodiment of the method, the air present between the granulate parts, usually warmer ambient air, is extracted from the waste to be fed into the screw press. If there is air in the screw press, the temperature in the screw press increases Screw press too strong, which is why more coolant would have to be added.
Durch die große Wärme in der Schneckenpresse ver¬ dampft die Flüssigkeit wie Wasser oder flüssiger Stick¬ stoff. Diese verdampfte Flüssigkeit wird vorteilhafterwei¬ se aufgefangen und wieder abgekühlt.Due to the high heat in the screw press, the liquid evaporates like water or liquid nitrogen. This evaporated liquid is advantageously collected and cooled again.
Vorzugsweise werden auch die Bauteile der Schnecken¬ presse, wie Schneckenmantel, Schnecke od.dgl. durch in Kühlkanälen geführten flüssigen Stickstoff, kaltes Wasser od.dgl. gekühlt, wodurch nicht nur die Kühlung verbessert wird, sondern das Kühlmittel auch ohne Reinigung wieder¬ verwendet werden kann.The components of the screw press, such as screw casing, screw or the like, are also preferably used. through liquid nitrogen, cold water or the like, which is conducted in cooling channels. cooled, which not only improves the cooling, but the coolant can also be reused without cleaning.
Das aus der Schneckenpresse austretende Gemisch der einzelnen Abfallbestandteile wird anschließend einem Tren¬ nungsprozeß, wie Sieben, Entzug der metallischen Teile durch Magneten od.dgl. unterworfen.The mixture of the individual waste components emerging from the screw press is then subjected to a separation process, such as sieving, extraction of the metallic parts by magnets or the like. subject.
Die Schneckenpresse kann z.B. eine Ausbildung aufwei¬ sen, wie sie in den WO-A-83/03.999, DE-A-3.714.508, DE-A- 3.714.509 und DE-A-3.714.518, beschrieben sind. Dabei handelt es sich um eine Schneckenpresse mit zwei parallel zueinander angeordneten Schnecken. Es können aber auch an¬ dere Schneckenpressen verwendet werden. The screw press can e.g. a training as described in WO-A-83 / 03.999, DE-A-3.714.508, DE-A-3.714.509 and DE-A-3.714.518. It is a screw press with two screws arranged parallel to each other. However, other screw presses can also be used.

Claims

Patentansprüche Claims
1. Verfahren zum Aufbereiten gummihaltigen Abfalls für die Weiterverarbeitung unter Ausnutzung der Sprödheit ein¬ zelner Bestandteile des Abfalls durch Kühlen des aufzube¬ reitenden Abfalls, dadurch gekennzeichnet, daß der gummi¬ haltige Abfall in einer Schneckenpresse gemahlen, minde¬ stens in der Schneckenpresse gekühlt und gegebenenfalls vor dem Eingeben in die Schneckenpresse vorzerkleinert wird.1. A process for processing rubber-containing waste for further processing using the brittleness of individual constituents of the waste by cooling the waste to be treated, characterized in that the rubber-containing waste is ground in a screw press, cooled at least in the screw press and if necessary, is pre-shredded before entering the screw press.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß dem Abfall flüssiger Stickstoff zur Kühlung beige¬ mischt wird.2. The method according to claim 1, characterized in that the waste liquid nitrogen is mixed for cooling beige¬.
3. Verfahren nach Anspruch 1, "dadurch gekennzeichnet, daß dem Abfall Wasser zur Kühlung beigemischt wird.3. The method according to claim 1, " characterized in that the waste water is mixed for cooling.
4. Verfahren nach einem der vorhergehenden.Ansprüche, dadurch gekennzeichnet, daß der gummihaltige Abfall in granulierter Form in die Schneckenpresse eingeführt wird.4. The method according to any one of the preceding claims, characterized in that the rubber-containing waste is introduced in granulated form into the screw press.
5. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Druck auf den Abfall in der Schneckenpresse bis zu 100 bar beträgt.5. The method according to any one of the preceding claims, characterized in that the pressure on the waste in the screw press is up to 100 bar.
6. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die zwischen den Granulattei¬ len vorhandene .Luft- dem "in die Schneckenpresse einzugeben¬ den Abfall entzogen wird.6. The method according to any one of the preceding claims, characterized in that the .Luft- the " between the Granulattei¬ len " to enter into the screw press the waste is removed.
7. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Bauteile der Schnecken¬ presse, wie Schneckenmantel, Schnecke od.dgl. durch flüs¬ sigen Stickstoff, kaltes Wasser od.dgl. gekühlt werden.7. The method according to any one of the preceding claims, characterized in that the components of the screw press, such as screw casing, screw or the like. by liquid nitrogen, cold water or the like. be cooled.
8. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das aus der Schneckenpresse austretende Gemisch der einzelnen Abfallbestandteile einem Trennungsprozeß, wie Sieben, Entzug der metallischen Teile durch Magneten od.dgl. unterworfen wird. 8. The method according to any one of the preceding claims, characterized in that the mixture of the individual waste components emerging from the screw press a separation process such as sieving, removal of the metallic parts by magnets or the like. is subjected.
EP91906707A 1990-03-28 1991-03-26 Process for preparing rubber-containing waste for further treatment Withdrawn EP0528808A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4009902 1990-03-28
DE19904009902 DE4009902A1 (en) 1990-03-28 1990-03-28 METHOD FOR PROCESSING RUBBER-BASED WASTE FOR PROCESSING

Publications (1)

Publication Number Publication Date
EP0528808A1 true EP0528808A1 (en) 1993-03-03

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Application Number Title Priority Date Filing Date
EP91906707A Withdrawn EP0528808A1 (en) 1990-03-28 1991-03-26 Process for preparing rubber-containing waste for further treatment

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Country Link
EP (1) EP0528808A1 (en)
JP (1) JPH05505773A (en)
CA (1) CA2079209A1 (en)
DE (1) DE4009902A1 (en)
WO (1) WO1991014552A1 (en)

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