What Key Technologies Ensure High Cleanliness of Bottle Flake Washing Lines?

The quality of recycled products in the plastic recycling industry hinges on the cleanliness of bottle flakes. Baixiong Klimens, a national high tech enterprise with 26+ years of experience, uses cutting-edge technology in its bottle flake washing line to achieve high levels of cleanliness. Baixiong Klimens’ bottle flake washing line offers tailored technical solutions for the processing of PET, HDPE, or PP bottles, and addresses the challenges of sticky labels, oil stains, and leftover impurities. This article examines the main technologies that contribute to the high levels of cleanliness in Baixiong Klimens’ bottle flake washing line.

Enclosed Crushing and Pre Washing Technology

The road to higher levels of cleanliness begins with crushing and pre washing. The Baixiong Klimens bottle flake washing line features an enclosed crushing system made of highly durable materials. Not only does this design keep dust and  impurities out during crushing, it also minimizes damage to the bottle flakes. The enclosed design with integrated pre washing module activates high pressure water sprays during the crushing sequence to rinse and remove surface lame and liquids trapped inside the bottles. In a case study of PET cola bottles, the pre washing unit removed over 80% of the contaminants, providing an ideal surface for subsequent washing. The technology is integrated into Baixiong Klimens bottle flake washing line and ensures the highest level of cleanliness from the outset of the process.

Integration Technology and High-Temperature Cooking Detergent

Removing oil and sticky labels on Baixiong Klimens’ bottle flake washing lines employs high temperature cooking technology. The lines feature a High-Temperature Cooking Tank that is sealed. These tanks contain a mixing shaft that applies heat uniformly to the bottle flakes. When environmentally friendly detergents are used and temperature levels are maintained between 80-95 degrees Celsius, the technology is able to remove oil and labels that are sticky. On HDPE milk bottles that contain heavy oil, this module can accomplish up to 95% stain removal. Additionally, Baixiong Klimens fine-tunes the formula of detergents used to be free of chemical residues, ensuring that the bottle flakes that have been washed are suitable for food grade recycling. This technology drives the bottle flake washing line to be of higher quality.

Multi-Stage Friction Cleaning and Rinsing Technology

To improve the cleanliness of the bottle flake washing line by Baixiong Klimens, we now incorporate multi-stage friction cleaning and rinsing. The line's three-cylinder friction washer utilizes foam friction and high-speed rotation to agitate and collide the bottle flakes. This was efficient in removing remnant label pieces and detergent. The next high-speed rinse module uses foam and a water cyclone to wash and separate bottle flakes from the rinse water. For PP medical bottle flakes that are cleanliness sensitive, a hydrocyclone is used to achieve a residual impurity content of less than 0.1%. The entire module is designed to conserve water while maintaining high cleaning efficiency. This multi-stage technology provides versatility to Baixiong Klimens’ bottle flake washing line to handle varying bottle types.

Innovative Drying and Dehydration Technology

Maintaining high cleanliness means there is a need to have low moisture and no residual water stains on bottle flakes. Baixiong Klimens’ bottle flakes washing line features a centrifugal dehydrator with adjustable speed. By rotating at high speed, the moisture level of the bottle flakes can be decreased to below 1%. A hot air drying module is available as an option to further eliminate moisture and avoid mildew for sensitive materials, like PET bottle flakes used in fiber production. To prevent secondary contamination of the bottle flakes, the inner wall of the dehydrator is made of anti-corrosion materials. As a result, this drying and dehydration technology guarantees the last bottle flakes in Baixiong Klimens’ bottle flake washing line are clean and dry to meet downstream processing needs.

Technology for Smart Sorting and Impurity Removal   

  
Small impurities like metal particles and other impurities which are not made of plastic can compromise the cleanliness of bottle flakes. Baixiong Klimen’s bottle flake washing line incorporates intelligent sorting technology. The line is equipped with metal detectors and NIR sorters which help identify and remove metal and non-target plastic parts. For instance, during the NIR sorting of mixed bottle flakes, the sorter is capable of separating PET, HDPE, and PP with 98% purity while also removing other small impurities. The intelligent control system of the line is able to self-adjust the sorting parameters to the different types of bottle flakes, providing consistency in the efficiency of pure and impurity detachment. It is due to this technology that Baixiong Klimens' bottle flake washing line has attained high precision in cleanliness.

Quality Control and After Sales Technical Support

For long term maintenance of cleanliness in the bottle flake washing line, Baixiong Klimens employs strict quality control and after sales technical support. Baixiong Klimens practices quality control in the whole production line of the bottle flake washing line, from the selection of raw materials and throughout the whole production to the delivery of the finished product, and makes sure that all components are up to the technical standards. The company does after sales services and looks to service the equipment on a scheduled basis, plus offer technical training. Where a customer experiences a problem with cleanliness, Baixiong Klimens’ technical support team is available to assist and offer such services as cleaning parameter modification or module upgrade to solve the problem. Module upgrade to solve the problem. Overall, Baixiong Klimens’ bottle flake washing line is proven to keep high cleanliness for a long period.