As plastic products become ever more present in our daily lives, the challenge of effectively recycling and processing plastic waste has risen to global prominence. Our Rigid Plastic Washing Recycling Line, a highly efficient and environmentally considerate piece of machinery, offers a robust solution for the plastics recycling industry, helping to turn waste into valuable resources.
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The Rigid Plastic Washing Recycling Line is a sophisticated, automated system meticulously engineered for processing a variety of rigid plastics. This includes common items like PET bottles (e.g., water and soft drink bottles), HDPE containers (such as milk jugs and detergent bottles), and PP barrels (like buckets and certain food containers). This advanced production line seamlessly integrates crushing, washing, separation, and drying functionalities. It efficiently transforms contaminated waste rigid plastics into clean, high-quality plastic flakes, ready to serve as premium raw materials for subsequent recycling and manufacturing processes.
A comprehensive Rigid Plastic Washing Recycling Line is an assembly of specialized modules, each performing a critical function in the transformation of waste plastic into reusable material. Below is a breakdown of typical components and their primary roles in the process:
Equipment Component Primary Function Feeding Conveyor Belt Ensures a consistent and even feed of raw material into the recycling plant. Shredder Initially shreds the material into smaller, rough pieces, preparing it for the granulator. Granulator Reduces the size of the plastic pieces further, creating a more uniform particle size for efficient washing. Screw Washer / Auger Transports material while simultaneously washing it, often used for conveying between stages. Sink-Float Separation Tank Separates plastics based on density; for example, PET (sinks) from PP/PE caps and labels (float). Also aids in removing heavy contamination. Centrifugal Dryer Mechanically dries the product by means of high-speed rotation, removing the bulk of surface water. Thermal Dryer System Utilises hot air to achieve final low moisture content in the flakes. Zig-Zag Classifier / Air Classifier Effectively removes light contaminants such as labels, film fragments, and fine dust particles. Bagging Station / Silo System Collects and delivers the final clean product into large storage bags or silos. Electrical Control Panel Provides a centralised interface for operators to monitor and control the entire system effectively.Our Rigid Plastic Washing Recycling Lines are extensively utilised across various sectors, demonstrating their adaptability and effectiveness:
With growing global environmental consciousness and relentless advancements in plastics recycling technology, the Rigid Plastic Washing Recycling Line is poised for exciting developments:
The Rigid Plastic Washing Recycling Line stands as a testament to efficient and environmentally sound plastic recycling. It plays an indispensable role in tackling the global challenge of plastic pollution and championing the principles of a circular economy by promoting resource recirculation. As technology continues to advance and market demand for high-quality recycled materials grows, these recycling lines are set to find even broader and more impactful applications, paving the way for a more sustainable future. We are proud to be at the forefront of this vital industry.
Specific technical parameters can vary based on the model and customisation. For detailed specifications, please refer to individual product sheets or contact us.
Input Capacity500kg/hkg/hkg/hkg/h Required Space42m×10m×6m50m×15m×6m55m×16m×6m60m×18m×6m Operators3-4 people5-6 people5-6 people5-6 people Installation Power150-200kW250-300kW370kW450-500kW Water Circulation（T/H）“Thanks to our innovative washing technology and consistently high-quality performance, we are privileged to provide reliable and remarkably efficient recycling solutions for our valued customers. Our unwavering commitment to harnessing the latest technology ensures that our recycling processes are not only environmentally friendly and sustainable but also consistently deliver superior quality results.”
Implementing a state-of-the-art Rigid Plastic Washing Recycling Line offers a wealth of advantages, benefiting both our planet and your business operations. Here’s a closer look at the key upsides:
Please note: Equipment configuration and the specific process flow will be carefully optimised according to the characteristics of your raw materials and desired output.
All our recycling machines are supplied with a 1-year limited warranty, covering manufacturing defects and ensuring peace of mind.
To receive the latest pricing information, lead times, or to discuss your specific recycling project requirements, please send us a message using the form below. We look forward to hearing from you!
Contact FormFirst NameLast NameEmailSubjectYour Message Share this postThe plastic recycling sector covers a very broad range of plastic types. From post-consumer plastics used for food packaging, to HDPE and PVC plastics use in construction and other applications. The following page gives an overview of the wastewater generated from the recycling of plastics. A washing line is an integral part of any plastic recycling process, and clean water is essential for the process to work.
The growth of the plastic recycling sector is resulting in a demand for customised and fully integrated closed loop washwater recycling solutions. The range of pollutants present in the wastewater is growing due to new recycling and washing processes being developed such as deinking. This creates a better need to understand the composition of process and washing water from the recycling process.
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Water plays a very important role in the recycling process. From the initial separation of plastics based on density in float and sink tanks, to the conveyance of plastics between different sorting steps. Then in the different washing steps, water is again a critical resource that must be used. Many washing lines may have multiple washing steps. From initial washing to remove coarse substances and pollutants, to washing with ultra-pure water for food grade and medical grade flakes and recycled plastic to be used in plastic films.
A typical washing line can use approximately 25 m3/hour of water. Additional side streams can also exist in a washing line for different water qualities. If you consider the cost to buy 1 m3 of water from the water utility, and the cost to dispose of 1 m3 of polluted washing water into the municipal sewer network, the need to reuse water in a closed loop becomes necessary for cost effective operation of a plastic washing line. With a closed loop reuse system there can be a water loss per day of just 2-5%.
The composition of plastic recycling washwater can be difficult to categorise. But by looking at the individual uses for plastic this can assist with a better understanding of the pollutants that can be present in plastic recycling process water. Some pollutants are very easy to remove, such as oils and suspended solids. Other pollutants such as glue used for labels and ink can require customised treatment steps to clean the washwater and allow reuse.
PET is the most widely recycled plastic. PET is transformed into r-PET flakes which have many uses. When considering the pollutants that can arise from the recycling of PET, in particular PET bottles and containers, you must consider the liquid or product they hold.
PET material is primarily used for beverage bottles but also food packaging or bubble wrap. The myriad types of food that can be stored in PET containers pose a challenge, as the contaminant load of each batch of plastic that is recycled can vary significantly depending on the origin and type of food.
PET bottles are used extensively in the beverage sector. Plastic bottles used for beverages can have a medium/low level of pollution as the liquid will not typically adhere to the PET, and bottles are typically empty. But with sugar-based drinks, there can be a high BOD in the water arising from sugar residues. Dairy and milk-based products that are often stored in PET bottles can cause elevated levels of BOD and COD in wastewater from milk residues.
PET bottles can also be used to hold other food products such as sauces or mustards. These sauces can have a very varied composition. Washing of these PET bottles and containers can produce a wastewater with a very high COD and BOD load, in addition to suspended solids and fats/oils/grease. Some ingredients in sauces can also have a very pronounced colour which can affect the wastewater and require colour removal.
PET bottles can also store medicines or pharmaceuticals. If used for storing these substances then there is the possibility for many complex and hard to remove, persistent pollutants to enter the washwater. These include active pharmaceutical ingredients, antibiotics, hormones, etc. In such a situation special process steps are required to ensure these pollutants are removed and oxidised so that future materials washed with the recycled washwater do not cause recontamination or accumulate in the washwater.
However, this composition also allows HDPE to have a very good chemical resistance. So, HDPE is then used extensively for the storage of chemicals and other corrosive materials. Recycling of containers that hold chemicals and other corrosive substances can result in a very polluted wastewater with a pH outside of the normal range, and a very high COD value. So, when processing HDPE into recycled pellets, special consideration must be given to the wastewater and process water cleaning for reuse.
LDPE is another plastic that is extensively recycled. LDPE film is one such product that recycled LDPE is used to produce. These films include cling films used for food wrapping, and in horticulture. The LDPE that is collected for recycling is generally sourced from pallet wrapping, shrink wrapping, plastic bags or bin liners. So, while LDPE that is recycled may not be heavily polluted, the LDPE recycling process requires washwater that is free of very fine particles. If the washwater is not adequately cleaned, then these particles can find their way into the final recycled films making them unsuitable for use in certain applications.
Polypropylene is a plastic that is used in a very wide range of applications. These range from clothing fibres, sheets used in construction and tank building, food containers, bags, films, and foams. It is also resistant to many chemicals. This means that when recycling polypropylene there is the possibility to have a very wide range of pollutants present in the wastewater due to the multiple uses of the plastic.
In summary, it is very hard to control what pollutants end up in the process water used for washing plastics to clean them prior to recycling. Plastics are often sorted based on their type rather than on the previous use of the plastic. This means that the variation and concentration of pollutants can vary significantly in the washwater.
A multi-step treatment approach is needed to ensure all pollutants are removed, degraded, and separated. This then allows safe recycling of the washwater in a closed loop. And the best way to make sure you implement the correct solution on your project it to get expert help and advice.
To learn how to choose the correct cleaning steps to allow washwater reuse for your recycling and washing line then please click the button below.
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