Installation and method for treating composite materials based on thermoplastic materials

An installation for treating composite products based on thermoplastic material for recycling purposes, said installation comprising:

• at least one means for heating and size reduction, at least one means for crushing, and at least one means for separation, each of said means being arranged so as to form at least one line for treating and extracting said composite products based on thermoplastic materials to be reused, said at least one line operating with either one of a continuous or intermittent flow,
• wherein:
• the at least one means for heating and size reduction comprises at least one heated screw mixer receiving the composite products based on thermoplastic material, configured to allow passage of macroscopic particles, and delivering a heterogenous output product in a liquid form or a viscous form;
• the at least one crushing means comprises at least one cylinder crusher comprising two heated rolling cylinders which are driven in rotation in opposite directions, the two cylinders having a passage gap therebetween, into which
• the output product from the at least one heated screw mixer is introduced by falling under an effect of gravity;
• the at least one separating means comprises at least one macroscopic separating means in a form of a device for discharging macroscopic contaminating particles which are present in the output product, and which are not or not sufficiently reduced by the two heated rolling cylinders;
• and
• the at least one separating means further comprise at least one microscopic separating means, which is selected from a group formed by a filter suitable for the composite products based on thermoplastic material, a reducer, a refiner, a grinding pump, a comminutor, or a combination of two from such group.