Abrégé

The invention belongs to the field of recycling plastic waste, particularly mixed plastic, recycling of which is very challenging. The invention relates to a device and a method for processing mixed waste plastic (MWP) and products made from mixed waste plastic. The mixed waste plastic comprises at least two of the following plastics: acrylonitrile butadiene styrene (ABS), ABS and glass fibre composite (ABS GF), polycarbonate (PC), polycarbonate and glass fibre composite (PC GF), PC-ABS composite, polyamide (PA), polybutylene terephthalate (PBT), and quartz sand (QS) with granulation up to 3 mm mixed in a selected ratio, which is from 30% : 70% to 60% : 40%. The method comprises the following steps: a) mixing MWP and QS, b) leading the prepared mixture to the extruder comprising a shaft with blades arranged for mixing and moving the material along the extruder, wherein the extruder is heated to a temperature between 200 and 250 °C, c) extruding the material from the extruder to a heated container, heated so that the temperature of the material inside it is between 210 and 240 °C, d) leading the material into a mould inside a press arranged to compress the mould, which presses the material into the desired shape, wherein said mould is cooled so that the product is cooled to a temperature between 60 and 90 °C and hardens.

Classes IPC  ?

• B29B 7/00 - MélangeMalaxage
• B29B 7/42 - MélangeMalaxage continu, avec dispositifs mécaniques de mélange ou de malaxage avec dispositifs de mélange ou de malaxage mobiles rotatifs avec un seul arbre à vis ou à vis sans fin
• B29B 7/44 - MélangeMalaxage continu, avec dispositifs mécaniques de mélange ou de malaxage avec dispositifs de mélange ou de malaxage mobiles rotatifs avec un seul arbre à pales ou à bras
• B29B 7/90 - Charges ou agents de renforcements
• B29B 17/04 - Désintégration des matières plastiques
• B29C 43/00 - Moulage par pressage, c.-à-d. en appliquant une pression externe pour faire couler la matière à moulerAppareils à cet effet
• B29C 48/00 - Moulage par extrusion, c.-à-d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désiréeAppareils à cet effet
• B29C 48/285 - Alimentation de l’extrudeuse en matière d’extrusion
• B29C 48/395 - Moyens pour plastifier ou homogénéiser la matière à mouler ou pour la forcer dans la filière ou la matrice utilisant des vis entourées par un fourreau coopérant, p. ex. des extrudeuses à vis simple
• B29C 48/605 - Vis caractérisées par les détails du pas de vis, p. ex. la forme du pas de vis d’alimentation en matière le pas étant discontinu

Produits et services

Plastic and sand construction materials; Construction materials of waste plastic and sand; Construction materials made of heat-treated mixture of waste plastic and sand; Products for use in construction made of plastic and sand; Products for use in construction from waste plastic and sand; Products for use in construction made of a heat-treated mixture of waste plastic and sand; Construction panels made of plastic and sand; Waste plastic and sand panels; Panels made of a heat-treated mixture of waste plastic and sand; Plastic and sand paving tiles; Waste plastic and sand paving tiles; Paving tiles made of heat-treated mixture of waste plastic and sand; Plastic and sand bricks; Waste plastic and sand bricks; Bricks made of a heat-treated mixture of waste plastic and sand; Plastic and sand moulds; Mouldings from waste plastic and sand; Castings from a heat-treated mixture of waste plastic and sand; Plastic and sand roof tiles; Waste plastic and sand roof tiles; Roof tiles made of a heat-treated mixture of waste plastic and sand.

Produits et services

Building and construction materials and elements, not of metal; Works of art and decorations, including sculptures, made primarily of non-metallic mineral materials such as stone, bitumen or concrete, or of substitutes for these; Unprocessed and semi-processed non-metallic mineral materials such as stone, clay, bitumen or concrete, or substitutes for these; Non-metallic transportable buildings; Concrete substitute construction materials; Plastic and sand construction materials; Panels for building construction; Duckboards, not of metal; Wallboards; Construction panels made of plastic and sand; Plastic and sand paving tiles; Cobbles; Breeze blocks; Plastic and sand bricks; Non-metal castings; Plastic and sand moulds; Pantiles; Plastic and sand roof tiles. Development of industrial machinery and equipment; Development of products in the construction industry; Development of building materials; Development of industrial processes in the field of plastic waste recycling; Development of equipment for recycling plastic waste; Development of construction materials from recycled plastic waste; Research in the field of building construction; Research in the field of mechanical engineering; Research in the field of environmental conservation; Plastic recycling research.