ES2277753B1

ES2277753B1 - RECYCLING PROCESS OF AGRICULTURAL AND URBAN PLASTICS.

Info

Publication number: ES2277753B1
Application number: ES200501889A
Authority: ES
Inventors: Jose Mauri Chacon
Original assignee: INVERSIONES Y GESTION ORICE S; INVERSIONES Y GESTION ORICE SL
Current assignee: INVERSIONES Y GESTION ORICE S; INVERSIONES Y GESTION ORICE SL
Priority date: 2005-07-21
Filing date: 2005-07-21
Publication date: 2008-06-16
Anticipated expiration: 2025-07-21
Also published as: ES2277753A1; WO2007010061A1

Abstract

Los plásticos son clasificados pasando a las cribas y soplado para su limpieza sin necesidad de emplear agua en su lavado garantizando de este modo evitar vertidos contaminantes. Los plásticos pasan a la trituradora. Los plásticos, una vez triturados, pasan a una autoclave giratoria donde perciben calor. Después son vertidos a una báscula volumétrica de la que se pasa a una prensa hidráulica en la que los moldes se someten a presión y calor. Una vez conseguida la densidad deseada, las placas son liberadas y almacenadas. La principal característica e innovación de este proceso es crear un producto utilizando distintos tipos de plásticos sin necesidad de lavarlos previamente con agua pero sí sometidos a una limpieza en seco a través de una criba y un sistema de inyección de aire que mediante sacudidas elimina gran parte de la suciedad que acompaña a los plásticos.Plastics are classified by passing the sieves and blown for cleaning without the need to use water in their washing, thus avoiding polluting spills. Plastics go to the crusher. The plastics, once crushed, go to a rotating autoclave where they perceive heat. They are then poured into a volumetric scale from which it is passed to a hydraulic press in which the molds are subjected to pressure and heat. Once the desired density is achieved, the plates are released and stored. The main feature and innovation of this process is to create a product using different types of plastics without having to wash them previously with water but subject to dry cleaning through a sieve and an air injection system that by shaking eliminates a large part of the dirt that accompanies plastics.

Description

Proceso de reciclaje de plásticos agrícolas y urbanos.Recycling process of agricultural plastics and urban.

Background

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 processes currently in existence they have washing stages that in addition to increasing costs They produce wastewater that is polluting For the enviroment.

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 costes que hasta ahora se vienen dando en otros procesos de reciclaje de plásticos.With this new invention a new one is achieved innovative system that helps to end the ecological problem which involves the abandonment of agricultural plastics, as well as a environmentally friendly and economically viable treatment for eliminating a series of costs that so far have been occurring in other plastics recycling processes.

Detailed description of the invention

1. Los plásticos seleccionados para el proceso de reciclaje son los residuos plásticos agrícolas y urbanos.1. Plastics selected for the process Recycling are agricultural and urban plastic waste.

2. Los plásticos, una vez recepcionados en la planta, son clasificados según sus densidades y pasados a las cribas y soplado para la limpieza de los mismos.2. Plastics, once received at the plant, are classified according to their densities and passed to the screens and blown for cleaning them.

3. Los plásticos pasan a un molino triturador.3. Plastics go to a mill shredder

4. Los plásticos, una vez triturados, pasarían a una autoclave giratoria en cuyo interior se someterá a 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. Plastics, once crushed, would pass to a rotating autoclave inside which will be subjected to heat to soften it and thus achieve easy product malleability plastic that is poured into the mold to be subjected to heat and pressure by a hydraulic press whose base plate and plate upper thrust will be provided with electrical resistors incandescent

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 la 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 bottom plate that is fixed and another top plate which is what makes the function of pressing on the mold supported on the bottom plate, until the adequate density, at which time the 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 la suciedad que acompaña a los plásticos, quedándonos de este modo una cantidad de elementos adheridos a los plásticos que actúan como cargas, es decir, como aditivo que da cuerpo y añade fortaleza al producto final actuando como estabilizante, 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 of sieve, where the heaviest waste is released, and a system of air blowing that by shaking eliminates much of the dirt that accompanies plastics, thus remaining a number of elements attached to plastics that act as loads, that is, as an additive that gives body and adds strength to the final product acting as a stabilizer, by maintaining the technical properties, both mechanical and electrical and also chemical

Claims

1. A process in which upon receipt of the plastic is screened and cleaned by air blowing in dry, to later become crushed, later it passes to a autoclave in which the plastic is subjected to heat. One time obtained the appropriate temperature passes to a volumetric scale and it is poured into a mold into which it is pressed at the same time which is subjected to heat, by means of incandescent resistances placed on the base plate and the press thrust plate hydraulics that puts pressure on the plastic introduced in the mold achieving the necessary density.

2. A process according to claim 1, which It comprises the following stages:

a)to): Los plásticos son recepcionados y clasificados según densidad.The Plastics are received and classified according to density.

b)b): El plástico pasa a una criba de tamiz donde son tamizado los residuos más pesados y limpiado en seco a través de un soplador de aire.He plastic passes to a sieve screen where the waste is sifted heavier and dry cleaned through a blower air.

c)C): El plástico pasa a un molino triturador.He Plastic passes to a grinder mill.

d)d): El plástico triturado se introduce en la autoclave donde es sometido a calor controlado.He Crushed plastic is introduced into the autoclave where it is subjected to heat controlled

e)and): El plástico pasa a una báscula volumétrica, la cual vierte el producto plástico en el interior de un molde.He plastic passes to a volumetric scale, which pours the product plastic inside a mold.

f)F): El plástico que es vertido en el molde es sometido a calor y presión por una prensa hidráulica cuya placa de base y placa de empuje superior estarán provistas de resistencias eléctricas incandescentes que son las que proporcionan el calor al plástico vertido en el molde.He plastic that is poured into the mold is subjected to heat and pressure by a hydraulic press whose base plate and push plate upper will be provided with incandescent electrical resistors which are the ones that provide heat to the plastic poured into the mold.

g)g): La pieza es desprendida del molde y pasa a la zona de almacenamiento.The piece is detached from the mold and passes to the area of storage.

3. A process, according to claim 2, in the that the plastic is dry cleaned by blowing and screening without be washed previously.

4. A process, according to claim 2, in the that thanks to the previous phase of screening and blowing, indicated in the claim 3 eliminates the risk of contamination by spills of contaminated water.

5. A process, according to claim 3, in the that, when not being washed, remains of elements attached to the plastics that act as charges thereof, giving body and adding strength of the foral product acting as a stabilizer, by maintaining the technical properties, both mechanical and electrical and also chemical