Over 10,000+ customers' choice, Focus on screening industry 40+ years
During the crushing of plastic bottles, the resulting flakes can vary in size depending on the incoming material, crushing method, and equipment settings. Along with flakes of the desired size, the crushed material may contain small plastic fragments, fine particles, and powder-like material.
When these fines remain mixed with the flakes, they may increase the complexity of subsequent material handling. For example, fine particles may enter different treatment stages during washing, while their presence may also need to be considered during drying and conveying.
Adding a suitable screening stage to the recycling process helps separate fine particles and classify plastic bottle flakes according to size. This can provide more consistent feed material for subsequent processing.
It is worth noting that a rotary vibratory sieve primarily separates materials according to particle size. Although it can remove certain fine particles that meet the screening conditions, it does not replace other impurity-removal processes such as washing or air separation. The appropriate process should be selected according to the type of contaminants involved.
To handle mixtures of plastic flakes and fine particles, Gaofu Machinery's rotary vibratory sieve uses vibration to move material across the screen surface. The selected mesh openings allow particles of different sizes to be separated.
During screening, particles small enough to pass through the mesh move into the corresponding discharge channel, while larger plastic flakes remain on the screen surface and are discharged separately.
By selecting suitable screen mesh specifications, the equipment can help remove certain undersized particles and classify Plastic Bottle Flakes according to production requirements.
Actual screening results depend on several factors, including particle size distribution, flake shape, moisture content, feed rate, and screen mesh specifications. For applications involving high fine-particle content or special material conditions, equipment selection should be based on the specific operating requirements.
Different plastic recycling facilities have different requirements for finished flake sizes. Some mainly focus on removing fine particles, while others require additional classification into several particle-size ranges.
Gaofu Machinery's rotary vibratory sieve can be configured with different screen mesh sizes and layer arrangements to suit various screening applications.
- Fine particle removal: Select a suitable mesh opening to separate smaller particles that meet the screening criteria.
- Particle size classification: Use screens with different mesh openings to classify plastic bottle flakes into multiple size ranges.
- Flexible screen selection: Choose appropriate screen specifications according to flake dimensions, fine-particle content, and production requirements.
For basic fine powder removal, a single-layer screen may be suitable. For production lines requiring multiple size classifications, a multi-layer screen configuration can be considered.
Selecting the right screen arrangement helps align the screening process with the actual material characteristics and production objectives.
Plastic bottle flakes have irregular shapes and distinct flake-like structures. Some fine particles may also adhere to the surfaces of larger flakes. Therefore, screening equipment should be selected according to the actual material condition rather than mesh size alone.
Several factors deserve attention:
- Moisture content: Moisture may cause fine particles to stick together, affecting their movement through the screen openings.
- Fine-particle content: The proportion of fines influences the choice of screen mesh and screening configuration.
- Flake shape: Thin or irregular flakes may overlap on the screen surface, so their characteristics should be considered during equipment selection.
- Screen cleaning requirements: For applications involving large amounts of fine particles or a higher risk of screen blinding, suitable screen-cleaning devices can be evaluated.
Gaofu Machinery can assist customers in assessing suitable equipment specifications and screen configurations based on material samples, screening objectives, and site conditions. Optional cleaning devices may also be considered for applications with specific screen-cleaning requirements.
Integrate Screening into the Plastic Recycling Process
Fine particle separation is not an isolated operation in a plastic recycling plant. It needs to work alongside upstream and downstream processes such as crushing, washing, drying, and further material treatment.
If screening equipment is not properly integrated with other machines, additional material transfer and manual handling may be required. When selecting a rotary vibratory sieve, manufacturers should therefore consider installation position, feeding and discharge directions, and material collection arrangements.
Gaofu Machinery's rotary vibratory sieve can be arranged according to the production layout and material flow. Suitable feeding and discharge configurations help direct screened materials to the appropriate downstream processing stages.
By planning the screening position and selecting suitable mesh specifications, recycling facilities can improve fine particle separation and material classification, providing feedstock that better matches subsequent processing requirements.
Conclusion: Fine Screening Solutions for Plastic Recycling Applications
Plastic recycling operations have different requirements for raw material size and composition. Fine particle separation is an important consideration during plastic bottle flake preparation. Choosing suitable screening equipment and configuring the screen according to material characteristics can help improve classification and support downstream processing.
Gaofu Machinery's rotary vibratory sieve is designed for a range of material-screening applications. Screen specifications and equipment configurations can be selected according to the particle size distribution, fine-particle content, and operating conditions of Plastic Bottle Flakes.
If you are looking for screening equipment for fine powder removal and particle-size classification in plastic recycling, contact Gaofu Machinery. Our team can discuss your material characteristics and production requirements to help identify a suitable screening solution.
Chemical Industry Client Testimonials
Wanhua Chemical, Yuntianhua Group, Kingfa Science & Technology, Formosa Plastics Group, China Pingmei Shenma Group, Kemai Co., Ltd., Luxi Chemical, Liby Group, Oriental Yuhong, Davco, Chenming Group, Guanhao High-Tech
Kaifei Chemical, Sunsine Chemical, Weilin Co., Ltd., Xuyang Group, 3Trees, Maydos, Loyal Group (Kingpor Group), AkzoNobel, CSSC Hanguang, Haike Group, Nice Group, Taishan Fiberglass, Wanhua, Red Eagle, China XLX Fertiliser (Xinlianxin), CCtech Catalysis, China National Bluestar, Sakura Paint, ITANOS, Yanggu Huatai, Sennics, Longxing Chemical Group, Tunhe Co., Ltd., GHW International, Jianye Chemical, Finehope
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CNPC、CSCEC、Sinochem Holdings、CRCC、China Minmetals Corporation、CNOOC、CR、Sinopharm、CHN Energy、COFCO Corporation、Huawei Technologies、PowerChina、CITIC Group、Wuchan Zhongda Group、NORINCO、Chalco、CNBM、 Shaanxi Coal and Chemical Industry Group、Ansteel Group、CETC、CSSC、CASC、CEC、Jinchuan Group、CASIC、Conch Cement、CNNC、SPH、Shanxi Coking Coal Group、 Zhongtai Chemical、GPHL、DEC、Sinosteel Corporation、MCC、China National Salt Industry Chemical、China Baowu Steel Group、China Animal Husbandry Industry Co., Ltd.、CECEP
About Gaofu
Xinxiang Gaofu Machinery Co., Ltd. was founded back in the 1980s. With over 40 years of development, it has been certified as a National-level Specialized, Refined, Unique & Innovative Little Giant Enterprise, National Green Factory, National High-tech Enterprise, and National Intellectual Property Advantage Enterprise, and serves as the President Unit of China Vibration Screening Industry Association.
The company is accredited with the Henan Provincial Industrial Design Center, Henan Provincial Engineering Technology Research Center for Intelligent On-line Screening System, and Xinxiang Municipal Engineering Technology Research Center for Fine Screening.
Gaofu has obtained more than 500 patents including invention patents, utility model patents and design patents, been awarded the Science and Technology Achievement Prize issued by the Ministry of Industry and Information Technology of China, and participated in drafting and formulating 4 national standards.
Gaofu's product portfolio covers multiple series and hundreds of specifications, including vibrating screening equipment, conveying equipment, coal crushing equipment, filtration equipment and automatic material handling systems.
Core products include vibrating screens, screening machines, vibratory sifters, rotary vibrating screens, ultrasonic vibrating screens, linear vibrating screens, airflow screens, gyratory screens, roller screens, dewatering screens, bar screens, vacuum feeding machines, dust-free feeding stations, bulk bag feeding stations, feeding systems, automatic powder feeding systems, automatic slag-discharging filters, leaf filters, clay filters, toothed roll crushers, coal crushers and other machinery.
These products are widely applied in food, pharmaceutical, chemical, metallurgy, construction materials, mining, thermal power, environmental protection and many other industries, winning recognition and trust from over 10,000 clients worldwide.
Gaofu products enjoy strong sales across Greater China, and are exported to more than 100 countries and regions such as Russia, Canada, the United States, New Zealand, Japan, Brazil and South Africa.
Upholding the corporate mission of Improving material quality & efficiency to fully satisfy customer demands, Gaofu maintains long-term partnerships with clients to achieve win-win development.
At present, Gaofu is an official qualified supplier for numerous Fortune Global 500 enterprises, including CNPC, Sinopec, Sinochem Holdings, China Resources Group, Sinopharm Group, COFCO, China National Building Material, China Aerospace Science and Technology Corporation, Jinchuan Group and more.
Gaofu Machinery ranks No.1 in global sales volume of vibrating screens.
In May 2024, Frost & Sullivan, a world-renowned international consulting firm, issued a Market Position Verification Certificate confirming that Gaofu achieved the world's largest shipment volume of vibrating screens in the global market in 2023.
