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WO2007010061A1 - Agricultural and urban plastic recycling method - Google Patents

Agricultural and urban plastic recycling method Download PDF

Info

Publication number
WO2007010061A1
WO2007010061A1 PCT/ES2006/000332 ES2006000332W WO2007010061A1 WO 2007010061 A1 WO2007010061 A1 WO 2007010061A1 ES 2006000332 W ES2006000332 W ES 2006000332W WO 2007010061 A1 WO2007010061 A1 WO 2007010061A1
Authority
WO
WIPO (PCT)
Prior art keywords
plastic
plastics
mold
subjected
heat
Prior art date
Application number
PCT/ES2006/000332
Other languages
Spanish (es)
French (fr)
Inventor
José MAURI CHACÓN
Original Assignee
Inversiones Y Gestión Orice, S.L.
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 Inversiones Y Gestión Orice, S.L. filed Critical Inversiones Y Gestión Orice, S.L.
Publication of WO2007010061A1 publication Critical patent/WO2007010061A1/en

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
    • B29B17/0026—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
    • B29B17/0042—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting for shaping parts, e.g. multilayered parts with at least one layer containing regenerated plastic
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/003—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor characterised by the choice of material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
    • 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
    • B29B2017/0286—Cleaning means used for separation
    • 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
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7128—Bags, sacks, sachets
    • 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 plastics selected for the recycling process are agricultural and urban plastic waste.
  • the pressure is exerted on two plates provided with incandescent resistors, a lower plate that is fixed and another upper plate that is the function of pressing on the mold supported on the lower plate, until the appropriate density is achieved, at which time which piece obtained is released and stored.
  • plastics can be mixed without being washed, but subject to dry cleaning through a sieve screen, where the heaviest waste is released, and an air blowing system that by shaking removes much of the dirt that accompanies plastics, thus remaining a quantity of elements attached to plastics that act as fillers, that is as additives that gives body and adds strength to the final product acting as stabilizers, to maintain the technical properties, both mechanical and electrical and also chemical.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Sustainable Development (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

The invention relates to a method for the recycling of agricultural and urban plastics. The inventive method comprises the following steps: (1) the plastics are classified, screened and blow cleaned, without requiring the use of water, thereby eliminating pollutant discharges; (2) the plastics are conveyed to a grinding machine; (3) the ground plastics are transferred into a rotary autoclave for heating and are subsequently poured onto a volumetric scale from where they are conveyed to a hydraulic press in which the moulds are subjected to heat and pressure; and (4) once the desired density has been obtained, the plates are released and stored. The invention is characterised in that said method can be used to create a product using different types of plastics without said plastics having to be pre-washed with water, but simply dry cleaned using a screen and an air-injection system which, by means of rapping, eliminates a large part of the dirt associated with plastics.

Description

PROCESO DE RECICLAJE DE PLÁSTICOS AGRÍCOLAS Y URBANOSRECYCLING PROCESS OF AGRICULTURAL AND URBAN PLASTICS
AntecedentesBackground
Los procesos existentes en estos momentos cuentan con unas etapas de lavado que además de aumentar los costes de fabricación producen unas aguas residuales que son contaminantes para el medio ambiente.The existing processes at the moment have washing stages that, in addition to increasing manufacturing costs, produce wastewater that is polluting for the environment.
Con esta nueva invención se logra un nuevo sistema innovador que contribuye a acabar con el problema ecológico que supone el abandono de los plásticos agrícolas, así como un tratamiento respetuoso con el medio ambiente y económicamente viable por eliminar una serie de costea que hasta ahora se vienen dando en otros procesos de reciclaje de plásticos.With this new invention, a new innovative system is achieved that helps to end the ecological problem of abandoning agricultural plastics, as well as an environmentally friendly and economically viable treatment to eliminate a series of costs that so far have come giving in other processes of recycling of plastics.
Descripción detallada de Ia invenciónDetailed description of the invention
1. Los plásticos seleccionados para el proceso de reciclaje son los residuos plásticos agrícolas y urbanos.1. The plastics selected for the recycling process are agricultural and urban plastic waste.
2. Los plásticos, una vez decepcionados en la planta, son clasificados según densidades y pasados a las cribas y soplado para la limpieza de los mimos.2. The plastics, once disappointed in the plant, are classified according to densities and passed to the screens and blown for the cleaning of the mimes.
3. Los plásticos pasas a un molino triturador.3. Plastics go to a grinder mill.
4. Los plásticos, una vez triturados, pasarían a una autoclave giratoria en cuyo interior se someterá calor para reblandecerlo y así lograr una fácil maleabilidad del producto plástico que es vertido en el molde para ser sometido a calor y presión por una prensa hidráulica cuya placa de base y placa de empuje superior estarán provistas de resistencias eléctricas incandescentes.4. The plastics, once crushed, would pass to a rotating autoclave inside which heat will be submitted to soften it and thus achieve an easy malleability of the plastic product that is poured into the mold to be subjected to heat and pressure by a hydraulic press whose plate base and upper thrust plate will be provided with incandescent electrical resistors.
5. La presión se ejerce sobre dos placas provistas de resistencias incandescentes, una placa inferior que es fija y otra placa superior que es la que hace función de prensado sobre el molde apoyado en la placa inferior, hasta lograr la densidad adecuada, momento en el cual la pieza obtenida es liberada y almacenada.5. The pressure is exerted on two plates provided with incandescent resistors, a lower plate that is fixed and another upper plate that is the function of pressing on the mold supported on the lower plate, until the appropriate density is achieved, at which time which piece obtained is released and stored.
6. La principal característica e innovación es que los plásticos pueden mezclarse sin necesidad de ser lavados, pero sí sometidos a una limpieza en seco a través de una criba de tamiz, donde se desprenden los residuos más pesados, y un sistema de soplado de aire que mediante sacudidas elimina gran parte de las suciedad que acompaña a los plásticos, quedándonos de este modo una cantidad de elementos adheridas a los plásticos que actúan como cargas, es decir como aditivos que da cuerpo y añade fortaleza al producto final actuando como estabilizantes, al mantener las propiedades técnicas, tanto mecánicas como eléctricas y también químicas.6. The main feature and innovation is that plastics can be mixed without being washed, but subject to dry cleaning through a sieve screen, where the heaviest waste is released, and an air blowing system that by shaking removes much of the dirt that accompanies plastics, thus remaining a quantity of elements attached to plastics that act as fillers, that is as additives that gives body and adds strength to the final product acting as stabilizers, to maintain the technical properties, both mechanical and electrical and also chemical.
HOJA DE REEMPLAZO (Regla 2S) REPLACEMENT SHEET (Rule 2S)

Claims

Reivindicaciones Claims
1. Un proceso en el que tras la recepción del plástico se somete a cribado y limpiado mediante soplado de aire en seco, para después pasar a ser triturado, más tarde pasa una autoclave en la que el plástico es sometido a calor. Una vez obtenida la temperatura adecuada pasa a una báscula volumétrica y se vierte en un molde dentro del cual es prensado al mismo tiempo que se somete a calor, mediante resistencias eléctricas incandescentes colocadas en la placa base y la placa de empuje de la prensa hidráulica que somete a presión el plástico introducido en el molde logrando la densidad necesaria.1. A process in which after the reception of the plastic is subjected to screening and cleaning by blowing of dry air, and then going to be crushed, later passes an autoclave in which the plastic is subjected to heat. Once the appropriate temperature is obtained, it passes to a volumetric scale and is poured into a mold into which it is pressed at the same time as it is subjected to heat, by means of incandescent electrical resistors placed on the base plate and the thrust plate of the hydraulic press that Press the plastic introduced into the mold to achieve the necessary density.
2. Un proceso según la reivindicación 1, que comprende las siguientes etapas: a) Los plásticos son recepcionados y clasificados según densidad. b) El plástico pasa a una criba de tamiz donde son tamizados los residuos más pesados y limpiado en seco a través e un soplador de aire. c) El plástico pasa a un molino triturador. d) El plástico triturado se introduce en la autoclave donde es sometido a calor controlado. e) El plástico pasa a una báscula volumétrica, la cual vierte el producto plástico en el interior de un molde. f) El plástico que es vertido en el molde es sometido a calor y presión por una prensa hidráulica cuya placa base y placa de empuje superior están provistas de resistencias eléctricas incandescentes que son las que proporcionan el calor al plástico vertido en el molde. g) La pieza es desprendida del molde y pasa a la zona de almacenamiento.2. A process according to claim 1, comprising the following steps: a) Plastics are received and classified according to density. b) The plastic passes to a sieve screen where the heaviest waste is sifted and dry cleaned through an air blower. c) The plastic goes to a grinder mill. d) The crushed plastic is introduced into the autoclave where it is subjected to controlled heat. e) The plastic passes to a volumetric scale, which pours the plastic product inside a mold. f) The plastic that is poured into the mold is subjected to heat and pressure by a hydraulic press whose base plate and upper thrust plate are provided with incandescent electrical resistors that are what provide heat to the plastic poured into the mold. g) The piece is detached from the mold and passes to the storage area.
3. Un proceso, según la reivindicación 2, en la que el plástico es limpiado en seco mediante soplado y cribado sin ser lavados previamente.3. A process according to claim 2, wherein the plastic is dry cleaned by blowing and screening without being previously washed.
4. Un proceso, según la reivindicación 2, en el que gracias a la fase previa de cribado y soplado, indicada en la reivindicación 3, elimina el riesgo de contaminación por los vertidos de aguas contaminadas.4. A process according to claim 2, in which, thanks to the previous phase of screening and blowing, indicated in claim 3, eliminates the risk of contamination by contaminated water discharges.
5. Un proceso, según la reivindicación 3, en el que al no ser lavados quedan restos de elementos adheridos a los plásticos que actúan como cargas del mismo, dando cuerpo y añadiendo fortaleza al producto final actuando como estabilizantes, al mantener las propiedades técnicas, tanto mecánicas como eléctricas y también químicas.5. A process according to claim 3, in which, when not being washed, remains of elements adhered to the plastics that act as fillers thereof, giving body and adding strength to the final product acting as stabilizers, while maintaining the technical properties, both mechanical and electrical and also chemical.
HOJA DΞ REEMPLAZO (R&gla 25) REPLACEMENT SHEET (R & gla 25)
PCT/ES2006/000332 2005-07-21 2006-06-01 Agricultural and urban plastic recycling method WO2007010061A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200501889A ES2277753B1 (en) 2005-07-21 2005-07-21 RECYCLING PROCESS OF AGRICULTURAL AND URBAN PLASTICS.
ESP200501889 2005-07-21

Publications (1)

Publication Number Publication Date
WO2007010061A1 true WO2007010061A1 (en) 2007-01-25

Family

ID=37668457

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2006/000332 WO2007010061A1 (en) 2005-07-21 2006-06-01 Agricultural and urban plastic recycling method

Country Status (2)

Country Link
ES (1) ES2277753B1 (en)
WO (1) WO2007010061A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014017892A1 (en) * 2012-07-27 2014-01-30 Rivera Ulloa Carlos Machine and process for producing boards from plastic waste

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2963365A1 (en) * 2022-08-26 2024-03-26 Ecoplaster Sabater S L PROCEDURE AND SYSTEM FOR DRY PHYSICAL-MECHANICAL RECYCLING OF PLASTIC WASTE (Machine-translation by Google Translate, not legally binding)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991005834A1 (en) * 1989-10-10 1991-05-02 Pka Pyrolyse Kraftanlagen Gmbh Waste disposal process
WO1995003375A1 (en) * 1993-07-20 1995-02-02 Basf Aktiengesellschaft Process for recycling plastics in a steam cracker
ES2146499A1 (en) * 1996-10-07 2000-08-01 Jurado Juan Luis Alvarez Process for recycling waste from plastic used in agriculture
WO2005003216A1 (en) * 2003-07-03 2005-01-13 Sociedade Nacional De Corticas, S.A. Process for production of composite agglomerates and products obtained through the process

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991005834A1 (en) * 1989-10-10 1991-05-02 Pka Pyrolyse Kraftanlagen Gmbh Waste disposal process
WO1995003375A1 (en) * 1993-07-20 1995-02-02 Basf Aktiengesellschaft Process for recycling plastics in a steam cracker
ES2146499A1 (en) * 1996-10-07 2000-08-01 Jurado Juan Luis Alvarez Process for recycling waste from plastic used in agriculture
WO2005003216A1 (en) * 2003-07-03 2005-01-13 Sociedade Nacional De Corticas, S.A. Process for production of composite agglomerates and products obtained through the process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014017892A1 (en) * 2012-07-27 2014-01-30 Rivera Ulloa Carlos Machine and process for producing boards from plastic waste

Also Published As

Publication number Publication date
ES2277753B1 (en) 2008-06-16
ES2277753A1 (en) 2007-07-16

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