Drying and Crystallization of PET chips/scraps/pellets
If you use Twin-screw or Multi screw extruder with vacuum degassing system, why still need to use Infrared crystal dryer to work together?
lContinuous material feeding into Sheet extruder
lIncreased output: up to 50% higher
lIncreased bulk density of material: normally 20-50% depends on material type
lReducing the complexity of vacuum system
lIncreased stability of the operation of extruding line and product quality
lLower requirement for raw material used
lLow down the operation cost up to 20% compared to the systems without IRD (Infrared crystal dryer )
Normally the PET Bottle flakes or sheet scrap with initial moisture level of up to 10000-13000ppm. The PET Bottle flakes or sheet scrap (Virgin or mixed )
will be recrystallized in a continuous IRD in 10-15mins.The drying temperature will be 150-180℃and dried to 1000ppm,
then fed to Double screw extruding system for further processing
lLimiting the hydrolytic degradation of the viscosity.
lPrevent increasing AA levels for materials with food contact
lIncreasing the capacity of the production line up to 50%
lImprovement and make the product quality stable-- Equal and repeatable input moisture content of the material
Continuously processing ( Production without interruption with PET Sheet production line )
1. Material Feeding
By vacuum dosing feeder to convey the raw material continuously to the rotating drum
2. Drying and Crystallization
Thermal treatment and mixing. There are the spirals welded into the rotary drum to ensure the well mixture of material and continuous transfer to the outlet.
And the material will also be dried continuously
The dried and crystallized material will be discharged after minutes drying by drum rotary. Finally the dried and crystallized material will be conveyed to the next processing.
Advantage of IRD Processing
Rotary drum design
To dry the material evenly
The spiral coils design of the drum ensure the good mixture of the raw material to avoid material clumping
Depends on the speed of Rotary drum
The speed can be adjustable by the property of drying material
PLC Controlling system
The material retention time,drum rotating speed
The Infrared lamps performance, drying temperature
The feeding speed of Vacuum feeder
Recipes and process parameters can be stored in the controlling system to ensure opimal and reproducible results
In one step
Drying and crystallization in one step
Minutes drying and crystallization instead of hours( Compared to conventional dehumidifier and crystallizer)
Allow for easy and fast cleaning.
HOW TO ENSURE THE QUALITY!
● In order to ensure the accuracy of each part, we are equipped with a variety of professional processing equipment
and we have accumulated professional processing methods over the past years.
● Each component before assembly needs strictly control by inspecting personnel.
● Each assembly is in charged by a master who has working experience for more than 20 years
●After all the equipment are completed, we will connect all the machines and run the full production line to ensure the stable running in customers' factory
1.We will provide testing if the customer comes to visit factory to see the machine.
2.We will provide detail machine technical specification ,electric diagram,installation,operation manual and all the documents
which customer needed for clearing customs and using the machine.
3.We will provide engineers for helping installation and training the workers at customer's site.
4.Spare parts are available when they are needed .Within warranty time,we we will provide spare parts free,and over warranty time,
we will provide spare parts with factory price.
5.We will provide technical support and repair service in the whole lifetime .
lDrying and crystallizing of PET to 50PPM
lDrying and crystallizing of PLA
lDrying of TPU
lDrying and heating of PE pellets to remove volatiles
lCrystallization of masterbatch in small batches
lDrying and crystallizing of PET for pelletizing or sheet extrusion
lDrying and crystallizing of PLA for pelletizing or sheet extrusion
lDrying and crystallizing of PPS Pellets, amorphous Co-Polyester
lDrying, crystallizing and heating of bulk materials
lPET Masterbatch Crystallization
lPP Masterbatch dryer
lDrying of plastic granules, and PET, PBT, ABS/PC, HDPE, LCP, PC, PP, PVB, WPC, TPE, TPU etc.( free-flowing bulk materials)
lRemoval of rest oligomeren and volatile components