preconditioning unit: cutting, mixing, preheating,
drying, degassing, compacting, buffering recycling extruder: plasticising, homogenising
melt filter: fully automatic and self-cleaning
twin-screw compounding extruder:
• Admixing of additives, fillers and reinforcing agents e.g. up
to 80 % CaCO3 , 50 % glass fibre, colour
pelletising systems:
• For consistent pellet quality
Recycling & compounding in a single processing step
Customised plastic recyclate from inexpensive recycling raw material.
01 — Project introduction
When recycling plastics from in-house or post consumer waste there are inevitably
quality fl uctuations which often limit the amount of recyclate in the end product. The solution lies in systematic upcycling, i.e. the combination of recycling and compounding.
This enables you to optimise the property profile with precision according to your
requirements.
POLYTEC brings together all the benefits of recycling and compounding in one system for the first time. The proven, robust POLYTEC technology is used to turn recycling raw
material (e.g. PP nonwoven, PE edge trim, PA fibres etc.) into a filtered melt which then goes directly to a co-rotating twin-screw extruder from Coperion. With its excellent mixing and gas removal properties, this part of the system can handle all compounding tasks.
Besides the dosing of a wide variety of additives, fillers and reinforcing agents
can be admixed in doses that are higher than those previously possible with POLYTEC
recycling systems. The result is customised plastic recyclate for high-quality
applications. for the first time. The proven, robust POLYTEC technology is used to turn recycling raw material (e.g. PP nonwoven, PE edge trim, PA fibres etc.) into a
filtered melt which then goes directly to a co-rotating twin-screw extruder from Coperion. With its excellent mixing and gas removal properties, this part of the system can handle all compounding
wide variety of additives, fillers and reinforcing agents
can be admixed in doses that are higher than those previously possible with POLYTEC
recycling systems. The result is customise
How it works
Feeding 1 is automatic according to customer requirements.
In the patented preconditioning unit 2 the material is cut,
mixed, heated, dried, degassed, densified and buffered.
Next, the tangentially connected extruder is fi lled continuous
ly with hot, pre-compacted material. In the extruder screw
3 the material is plasticised, homogenised and then cleaned
in the fully automatic self-cleaning fi lter 4 .
The prepared and cleaned melt then goes via the melt pump
5 directly to the co-rotating, self-cleaning twin-screw
extruder 6 from Coperion. With its excellent mixing and gas
removal properties, this fl exible part of the system can hand
le all compounding tasks.
Besides the dosing of a wide variety of additives, high
amounts of fi llers and reinforcing agents 7 can be ad
mixed. In the degassing zone 8 the compounded melt is
degassed and moves to the respective tool 9 (e.g. POLYTEC
hot die face pelletising system).
02— Technical characteristics
| Mode | Output capacity in kg/h* | Remark |
| PTC100-65 | 300 | Examples of additives, fi llers and reinforcing agents suitable for admixing
|
| PTC130-75 | 500 | |
| PTC185-95 | 800-1000 |
Depending on material properties of the polymer (moisture content, print,
degree of contamination, etc.) type and properties of the filling/reinforcing
agent and the degree of filling
03 — Process
Conveyor belt, agglomerator/ compactor, single screw extruder,column filter ,twin screw extruder, pelletizing unit, water cooling unit, drying unit, storage silo.
|
Machine |
Photo of machine | Technical specifications | |
|
Belt conveyor |
|
Transfer plastic waste such as films, silk, woven bags to the pellet; the feeding speed of the conveyor belt according to the fullness of the agglomerator by the inverter.
|
|
| Compactor |
|
1. The rotary blades at the bottom of the compactor and fixed blades on the wall cut plastic material into small flakes,Friction heat dries and pr-heats the flakes and makes them shrink .
2. This combined process of cutting drying and compacting enable stable and effective feeding for small bulk density plastics . 3. Inverter for compactor to adjust rotary speed of compactor ,meanwhile saves energy 10-15%.
|
|
| Single screw extruder |
|
High efficiency barrel and screw used for extruder with excellent plasticizing result and high output capacity. Adopt high wear resistant alloy material to ensure 1.5 times service life of normal one. Vacuum venting hardware
|
|
| Compounding system+automatic weighing feeding system | 
|
Automatic weighing and auto feeding system for PE compounding pelletizing line, loss-in-weight batching, vacuum auto feeding, multi-ingredient automatic proportioning for PE raw materials, fillers and additives.
|
|
| Plate type, piston type, and automatic self-cleaning type filter, you have different choice according to impurity contents in material and your habit. | 
|
Comparative advantages of large area net changer and plate type net changer:
1) larger filtration area 2-4 times, particle quality greatly improved 2) lower energy consumption :40-70 per cent lower energy consumption 3) the true meaning of no stop network without pressure fluctuations, water ring particles thickness more uniform. 4) higher durability and tightness 5) reduce filter mesh cost by 20% effectively 6) effectively prolong the time of network exchange, save manpower, reduce waste of raw materials |
|
| Pelletizing | 
|
New European design water ring pelletizer, Cutting speed of pelletizer controlled automatically by PLC according to the pressure of die head, which could achieve the uniform size for output pellets. | |
| Drying system
|
|
Centrifugal dryer match with hot air drying system
|
|
| Auto weighing&packing system |
|
||
| Smart Control cabinet | 
|
SMART intelligent control:
HMI PLC control: ergonomic touch screen, easy operation, high stability, low late maintenance cost Recipe memory Remote diagnosis and data transmission High safety protection: to protect personnel safety and equipment safety Emergency stop protection (equipment stop in emergency situations) limit switch Protect the shell High-speed transmission parts warning reminder (yellow paint, sign) |
|
05 — Process
Conveyor belt, agglomerator/ compactor, extruder, pelletizing unit, water cooling
unit, drying unit, storage silo.
06— Customer case
1.New project 1100kg/ h 5G Double Filtration Compacting Pelletizing Line
Our company has completed a new modern plastic recycling Two Stage Plastic Pelletizer Machine with self-clean filtration system!The self-clean filter realizes automatic slag discharge.For the second stage,we use piston type filter,which has a large filtration area.
Located in Poland
2.PP Non-woven Fabric /tpe Gloves Shredding Compacting Recycling Extruder Machine Srilanka listed group professional recycling company specializing in the recycling of PP non-woven fabrics,Who has EREMA recycling machine.Because of the quality of POLYRETEC,they also bought POLYTEC recycling machine.The machine runs smoothly and the output productivity is high.
3.Ldpe Films Recycling Pelletizing System From Polytec Machinery .
The Turkey customer recycles LLDPE Bags and Pe Films.This pelletizing machine is realized to recycle the printed bags and films in one machine.The machine capacity of our PTC100 can do 350kg per hour.
Located in Turkey .
