Economic recycling of PVC window profile sections and old windows
The hamos WRS window recycling plant is specially designed for the economic recycling of PVC window profile sections and PVC waste windows and consists of a combination of hamos EKS electrostatic plastic separators and opto-electronic color sorting devices.
hamos EKS electrostatic separators are used to separate practically all seals (rubber, soft PVC, etc.) from shredded and dedusted PVC window sections. To further increase the purity and/or improve the degree of whiteness, opto-electronic color sorters are installed downstream.
Through the combined use of these two processes, PVC purities of over 99.99 % can be achieved.
Requirements for your material
In order to achieve an optimum separation result, the PVC window regrind to be separated should be as follows:
- PVC regrind with impurities like rubber, nylon, flexible PVC etc.
- Particle size 2 to 8 mm
- Dedusted material
- Completely digested material
- Trockenes Material (ideale Oberflächenfeuchte < 0,8 %)
- Material not treated with antistatic agents
You are not sure whether your material is suitable for electrostatic separation? After consultation, send us a material sample of approx. 20 kg with which we can test the separability of your material in our pilot plant.
We show you which purities and throughputs we achieve with your material. Based on these separation results, you will receive our test report. We will then be happy to offer you the optimum system for your application.
You will be amazed at the added value you can achieve with your material once it has been separated into unmixed fractions.
Operating principle
Step I: Electrostatic separation
In the hamos EKS, the granulated and dedusted mixture of PVC and rubber is tribo-electrically charged in a special charging unit, with PVC particles being negatively charged and rubber and foreign plastics positively charged. The plastics are then separated in a high-voltage field. A special electrode design is used to additionally separate some of the impurities from metal, glass, wood, PE films, etc. that may be contained in the material.
Step II: Color sorting
In order to increase the product purity of the PVC fraction, an opto-electronic SEA PIXEL color sorting system is subsequently used. The material to be sorted is inspected from all sides by a camera system. If a false-colored particle is detected, it is blown out by a fast-switching pressure valve.
Your advantages
- Dry separation process
- PVC purities up to over 99.99
- Low PVC loss
- Improvement of the whiteness of the product
- Separation independent of specific gravity
- Separation of additional impurities from non-plastics such as wood, metal, glass, etc.
- Proven system combination
- Fast amortization
- High throughputs
- Low energy consumption
- Low personnel deployment
Examples
For example, if you
- Production waste of PVC window profiles
- Profile sections
- PVC old windows
- PVC doors
- Roller shutter armor
- etc.
recycle, the hamos WRS system is ideal for separating unwanted contaminants such as rubber seals, nylon and other foreign plastics.