WO2003057442A1 - Desagregation de pneus en caoutchouc par jets de fluide a ultra haute pression - Google Patents

Desagregation de pneus en caoutchouc par jets de fluide a ultra haute pression Download PDF

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Publication number
WO2003057442A1
WO2003057442A1 PCT/GB2003/000037 GB0300037W WO03057442A1 WO 2003057442 A1 WO2003057442 A1 WO 2003057442A1 GB 0300037 W GB0300037 W GB 0300037W WO 03057442 A1 WO03057442 A1 WO 03057442A1
Authority
WO
WIPO (PCT)
Prior art keywords
rubber
tyre
high pressure
ultra high
jets
Prior art date
Application number
PCT/GB2003/000037
Other languages
English (en)
Inventor
Donald Blair
Original Assignee
Tireless Technology Limited
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 Tireless Technology Limited filed Critical Tireless Technology Limited
Priority to AU2003201036A priority Critical patent/AU2003201036A1/en
Publication of WO2003057442A1 publication Critical patent/WO2003057442A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/003—Cutting work characterised by the nature of the cut made; Apparatus therefor specially adapted for cutting rubber
    • B26D3/005—Cutting work characterised by the nature of the cut made; Apparatus therefor specially adapted for cutting rubber for cutting used tyres
    • 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
    • B29B2017/0094—Mobile recycling devices, e.g. devices installed in truck trailers
    • 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
    • B29B2017/0428—Jets of high pressure fluid
    • 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
    • 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

  • This invention relates to a method and apparatus for reclaiming rubber and other constituents from waste tyres.
  • the method and apparatus may be used to solve the major problem of waste tyres worldwide.
  • the United States government proposed legislation relating to the increasing threat to the environment from huge stockpiles of waste tyres.
  • the 'Tire Recycling and Recovery Act' if enforced, may require that existing stockpiles of three billion waste tyres be removed by the year 2005, together with the annual waste tyre generation of 240 million.
  • 240 million waste tyres are also generated annually, 25 million in the UK alone.
  • the alternative method detailed relates also to alternate uses for the products from waste tyres.
  • the method will allow total recycling of the components and their re-use.
  • a particular application for the fine rubber crumb which can be obtained from waste tyres using this invention is the incorporation of the crumb into new tyres.
  • Fine crumb of this type can also be used as a filler for plastics.
  • Rubber crumb can be used in applications such as road pavement, i.e., an addition to asphalt paving to impart enhanced properties to the surface.
  • Sports surfaces can utilise rubber crumb as a component and there are many further uses which have been inhibited from growth die to the lack of consistent and economically priced rubber crumb.
  • the recycling technique must be capable of recovering all materials present in the tyre; rubber, textile fibre, and metal. Furthermore, the recycling method must be able to separate these component materials in order to provide a marketable product.
  • the aim of the present invention is to provide an improved method and apparatus for reclaiming of rubber and other constituents from waste tyres.
  • the present invention gives a method of reclaiming the constituent materials of waste tyres by removing the rubber and at the same time reducing it to crumb by using ultra high pressure fluid jets.
  • the preferred form of the invention is for the coaxial bead wire to be removed after which the tyre undergoes sequential operations to separate the individual components and convert the tyre constituents to a size suitable for further recovery and use.
  • the tyre is first treated by cutting across its cross section and then holding the tyre flat beneath rollers by means of hydraulic or other pressures and then subjecting the tyre to a rotating and/or traversing ultra high pressure fluid jet in order to reduce the rubber to crumb.
  • the tyre is fed between pressure rollers and subjected to action from single or multiple ultra high pressure jet heads operated in the pressure region of 1 ,500 to 4,000 bar.
  • the action of the jet mills the rubber from the tyre.
  • the tyre may be held vertically or horizontally.
  • the resultant crumb is then collected and recovered for further treatment which may be drying and sieving to achieve particular crumb sizes.
  • the rubber removed from the tread section may be used as granulated, crumbed or powdered rubber for any of the particular applications described above.
  • the size and quality of this rubber product may be altered by the pressure, configuration and location of the ultra high pressure fluid jets.
  • the nature of the products is determined by the actual fluid pressure used, between 1 ,500 and 4,000 bar, the number of jets used in each jet head, the orientation of the jets, preferably between 90 degrees and 35 degrees to the tyre, the rotational or traversing speed of the jets, the distance of the jets from the tyre and the speed at which the tyre is presented to and passes the jets.
  • the clean steel reinforcement previously contained within the tread section is collected by a rotating flapper wheel which can direct the steel fibres to a device which prepares it for subsequent processing, particularly as steel needles.
  • a rotating flapper wheel which can direct the steel fibres to a device which prepares it for subsequent processing, particularly as steel needles.
  • the residual tyre after rubber is removed above and around any steel reinforcing fibres, is then continued along its path between rollers as the remainder of the tyre is subjected to ultra high pressure fluid, traversing or rotating jets reducing the remaining rubber to fine crumb which can be collected separately.
  • ultra high pressure fluid jets and in particular when these jets are water jets, is particularly advantageous to this method and invention.
  • viscoelastic materials such as rubber are difficult to cut by conventional cutting methods but are relatively easy to cut using ultra high pressure water.
  • the granulated rubber crumb or fines are automatically washed during the cutting process and thus only require subsequent dewatering and drying, prior to any sieving or grading process and to packing.
  • Any textile particles present may first be removed by methods such as flotation, air separation or by agitation after drying, etc.
  • the crumb may be passed through rollers to remove excess water or vibrating dewatering screens can be used to remove more water before passing into a rotary kiln dryer.
  • the water may be recovered and recycled after filtration.
  • Vibrating screens can also be used to separate the crumb into different particle sizes.
  • Water jets having an orifice size from 0.10 mm to p.25 mm diameter are used in the process, resulting in water jet velocities up to 1000 metres per second at fluid pressures ranging from 1 ,500 to 4,000 bar, the preferred range being normally of the order of 2,750 to 3,900 bar.
  • the metal components can then be removed by magnetic methods or by gravitation techniques.
  • the method described in this invention may be readily automated by known automation technology. It may also be subjected to building in a mobile form and incorporated on to a truck or trailer which may be taken to landfill sites for processing tyres. Such a mobile unit could be powered by a diesel generator.
  • This method for the recycling of waste tyres is environmentally friendly and eliminates any serious fire, health, safety or pollution concerns.
  • the process produces no pollutant, residuals, odours, fumes or noxious emissions, toxic gases or vapours, dust residual fluids or excessive operational noise levels. It does not involve chemicals or the combustion of materials, heat is not generated and there are no waste products generated by the process.
  • the process described therefore, is a method and apparatus for converting waste tyres to useful by-products such as granulated, crumbed or powdered rubber together with textile fibre and morphologically unchanged steel wire.
  • the process can vary the size of the rubber product and is able to operate on a wide variety and type and sizes of waste tyres.
  • the method of this invention is not only cost effective in solving an existing problem but also generates an engineering material with a range of applications, not least that of incorporation into new tyres.
  • Figure 1 is a schematic side view of a tyre (A) split through its thickness, held between rollers (B) and carrier anvils (C).
  • Rotating or traversing jets (D) remove the rubber from above and between the steel reinforcement. This is then taken for collection and further treatment elsewhere.
  • the remaining rubber in the tyre is then removed by a further sequence of jets.
  • Waste tyres cut through their cross section are fed between pressure rollers to the first treatment stage in which traversing and/or rotating ultra high pressure fluid jets remove the rubber above and between the steel reinforcement.
  • the steel reinforcement is then picked up by a rotating flapper wheel (E) which feeds the steel to a collecting device (F) from which it may be obtained in a form suitable for further treatment, for example, chopped to the size of steel needles for the reinforced concrete industry.
  • the steel bead wires can be treated separately by ultra high pressure fluid jets, to remove the rubber after which the steel is dried for further treatment.
  • the tyre then moves, under the action of the rollers, to the second treatment stage (G) where the remaining rubber is reduced to crumb by rotating or traversing ultra high pressure water jets.
  • the rubber crumb as various sizes, can then be taken, by conveyor belts or by screw conveyors, to a treatment area where it is dried, sieved for further classifying, weighed, packaged and dispatched.
  • Any textile fibre can be removed first by agitation or flotation.
  • the metal fibres can also be dried and subjected to any further treatment before being weighed, packaged and dispatched.
  • the machine for carrying out these operations may be of the order of 4 to 5 metres in length by 1 to 2 metres wide. Such a compact unit could easily be adapted to work from a mobile unit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Processing Of Solid Wastes (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

L'invention concerne un procédé de récupération de caoutchouc et d'autres constituants de pneus de rebut, notamment de pneus possédant des parties renforcées de métal. Ledit procédé consiste : à retirer le caoutchouc des diverses parties du pneu (a), notamment du calandrage intérieur en butylcaoutchouc, de la bande de roulement et de la flasque de roue, afin de produire un granulé de caoutchouc, dont les dimensions sont variées et contrôlées et dépendent des variables de traitement utilisées, tout en laissant le renforcement métallique, au moyen de jets de fluide à ultra haute pression (d), en particulier de jets d'eau ; et à récupérer ensuite le caoutchouc, les fibres textiles et le renforcement métallique. Ce procédé est parfaitement illustré par la figure (I), qui montre un pneu, maintenu sous des rouleaux de pression (b, c) et soumis à un fluide à ultra haute pression appliqué par jets rotatifs capable de transformer efficacement le caoutchouc en un granulé de caoutchouc et à libérer tout métal ou toute matière textile présents.
PCT/GB2003/000037 2002-01-08 2003-01-08 Desagregation de pneus en caoutchouc par jets de fluide a ultra haute pression WO2003057442A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003201036A AU2003201036A1 (en) 2002-01-08 2003-01-08 The disintegration of rubber tyres using ultra high pressure fluid jets

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0200368.9 2002-01-08
GB0200368A GB0200368D0 (en) 2002-01-08 2002-01-08 The disintergration of rubber using ultra-high pressure fluid jets

Publications (1)

Publication Number Publication Date
WO2003057442A1 true WO2003057442A1 (fr) 2003-07-17

Family

ID=9928781

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2003/000037 WO2003057442A1 (fr) 2002-01-08 2003-01-08 Desagregation de pneus en caoutchouc par jets de fluide a ultra haute pression

Country Status (3)

Country Link
AU (1) AU2003201036A1 (fr)
GB (1) GB0200368D0 (fr)
WO (1) WO2003057442A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006123195A1 (fr) * 2005-05-18 2006-11-23 Bera Pal Procedure de fabrication d'unites de construction isolantes a partir de dechets de plastique et/ou de caoutchouc contenant du metal
ITVR20090076A1 (it) * 2009-05-28 2010-11-29 M C S P A Impianto di smaltimento dei pneumatici esausti
EP2420371A1 (fr) * 2010-08-17 2012-02-22 Uniwersytet Technologiczni-Przyrodniczy Im. Jana I Jedrzeja Sniadeckich W Bydgoszcz Procédé pour la récupération de caoutchouc de pneus usagés et installation pour son application
CN111823443A (zh) * 2020-07-22 2020-10-27 邱甜甜 一种废旧橡胶制品回收再利用预处理工艺
US11999080B2 (en) 2019-07-31 2024-06-04 Tyre Recycling Solutions Sa Machine for recycling tyres

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5115983A (en) * 1990-07-07 1992-05-26 D & R Recyclers, Inc. Process for recycling vehicle tires
US5683038A (en) * 1995-12-06 1997-11-04 Shinal; Thomas J. Tire dissection system
US5755388A (en) * 1996-12-05 1998-05-26 Yen; Chin-Ching Waste tire treating apparatus
FR2785220A1 (fr) * 1998-11-02 2000-05-05 Soc D Construction De Machines Procede de traitement et de recyclage de pneumatiques notamment et l'installation pour la mise en oeuvre du procede
WO2001053053A1 (fr) * 2000-01-14 2001-07-26 Regum Kft Procede de recuperation selective de composants a partir d'une matiere-dechet elastique multicomposee, et appareil de production d'une poudre de caoutchouc a grains fins

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5115983A (en) * 1990-07-07 1992-05-26 D & R Recyclers, Inc. Process for recycling vehicle tires
US5683038A (en) * 1995-12-06 1997-11-04 Shinal; Thomas J. Tire dissection system
US5755388A (en) * 1996-12-05 1998-05-26 Yen; Chin-Ching Waste tire treating apparatus
FR2785220A1 (fr) * 1998-11-02 2000-05-05 Soc D Construction De Machines Procede de traitement et de recyclage de pneumatiques notamment et l'installation pour la mise en oeuvre du procede
WO2001053053A1 (fr) * 2000-01-14 2001-07-26 Regum Kft Procede de recuperation selective de composants a partir d'une matiere-dechet elastique multicomposee, et appareil de production d'une poudre de caoutchouc a grains fins

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006123195A1 (fr) * 2005-05-18 2006-11-23 Bera Pal Procedure de fabrication d'unites de construction isolantes a partir de dechets de plastique et/ou de caoutchouc contenant du metal
ITVR20090076A1 (it) * 2009-05-28 2010-11-29 M C S P A Impianto di smaltimento dei pneumatici esausti
EP2420371A1 (fr) * 2010-08-17 2012-02-22 Uniwersytet Technologiczni-Przyrodniczy Im. Jana I Jedrzeja Sniadeckich W Bydgoszcz Procédé pour la récupération de caoutchouc de pneus usagés et installation pour son application
US11999080B2 (en) 2019-07-31 2024-06-04 Tyre Recycling Solutions Sa Machine for recycling tyres
CN111823443A (zh) * 2020-07-22 2020-10-27 邱甜甜 一种废旧橡胶制品回收再利用预处理工艺

Also Published As

Publication number Publication date
AU2003201036A1 (en) 2003-07-24
GB0200368D0 (en) 2002-02-20

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