At Domenech we offer advanced solutions for different productions of material quality that is fully controlled in its process. All facilities offer “turnkey” execution, from their conception at the engineering level to the launch of the manufactured product.
We offer machinery for all types of plastics, such as FILM, PET, HDPE or LDPE.
Scroll through the image and you’ll find the names of the different phases.
01 | RECEPTION & SEPARATION
02 | PRE-SHREDDING
03 | PRE-WASH
04 | SHREDDING
05 | WASH
06 | MECHANICAL DRYING
The material separation phase begins with the feeding of the plastic bales to the hydraulic shear guillotine that will be responsible for dosing the material, cutting it into pieces which are fully adaptable to production. After cutting, a conveyor belt will take the material to the trommel where a mechanical separation of the unsuitable material is carried out. At the exit of the trommel there is a second belt that advances the material to the sorting cabin where a group of people perform a manual separation, placing the inappropriate ones in containers.
The primary shredding phase consists of a Series EHV schredding, which is responsible for tearing the material, leaving it at a size between 50 and 60 mm (depending on the type of material and the type of grate that the schredder has. ). The torn material falls onto a conveyor belt that feeds into a hopper. The material is then dosed and transported until it reaches the pre-washing tank where the next phase begins.
In the pre-wash, a first cleaning of the material occurs where the contaminants adhered to the plastic is decanted to the bottom of the pre-washing tank. Thanks to the water injectors, the plastic particles remain on the water surface while the unsuitable ones are decanted. At the output of the tank is the washing machine that removes part of the water from the material and deposits it on the conveyor belt that goes to the granulator schredder. The rejection produced in the tank ends up in a screw conveyor where a slight separation of water and the rejected material occurs.
Here the granulator schredder crushes the material, leaving it with a granulometry between 25 and 35mm (depending on the type of material). Once granulated, the material passes through a screw conveyor that will take it to the washing phase.
In this phase, the material enters the washing tank, where an exhaustive washing is carried out. The contaminants settle to the bottom of the tank and is extracted by a linear plate conveyor. The plastic leaves the tank with a lot of humidity, which is why it is transported by a screw conveyor to the centrifuge, where part of the water contained in the material is removed, leaving it with approximately 25% humidity.
In the last phase, the material is conveyed by pneumatic transport to the silo that extracts the material using screw conveyors and doses it to the crusher where compaction and drying of the material occurs, reducing humidity up to 9%.