Product Introduction
The Negative-Pressure Air Sorter is a closed-loop airflow sorting device specifically developed for light/heavy material separation in mixed plastic solid waste. It specializes in efficient sorting of crushed plastic bottles from light impurities such as film and paper fluff, capable of handling materials within 30-300mm, widely used in PET bottle recycling, plastic recycling processing, and municipal solid waste resource recovery scenarios. It is the core equipment for fine sorting of plastic solid waste.
This equipment adopts a negative-pressure enclosed circulating air circuit design. After materials enter the sorting chamber through the feed end, plastic bottles fall and discharge relying on their own weight and inertia, while light materials such as plastic film and paper scraps are drawn by the negative-pressure airflow generated by the upper air hood and transported through ducts to the rear-end rotary air sorter. Film materials separate from the airflow within the rotary air sorter and naturally fall for collection, while clean air circulates back to the fan through ducts, forming a closed-loop airflow system with no dust emission. The air circuit can be steplessly regulated through a variable frequency fan, combined with an adjustable air hood structure, precisely controlling airflow intensity to achieve stable separation of light and heavy materials, solving pain points such as dust pollution, low sorting precision, and incomplete light impurity removal in traditional open-type air sorters.
The overall equipment adopts a modular sealed structure, operating under full-process negative pressure, effectively preventing dust emission and ensuring the working environment. It is equipped with an electrical overload protection system and wear-resistant consumable parts, with stable operation and low failure rates. Disassembly and maintenance are convenient, suitable for long-term continuous industrial operation, combining high efficiency, environmental protection, and versatility, making it the ideal equipment for achieving high-efficiency sorting in the plastic recycling industry.
Key Advantages
The equipment adopts a full-process negative-pressure enclosed structural design. Joints of air circuit ducts, sorting chamber, and rotary air sorter are all sealed with sealant, and key flange connections are fitted with sealing gaskets, effectively preventing air leakage and dust emission, ensuring stable overall sealing performance. The equipment uses closed-loop air circulation design, with clean air returning to the fan after separation through the rotary air sorter, with no external dust emission.
The fan is equipped with a variable frequency motor with adjustable impeller speed, allowing real-time flexible speed adjustment according to material type, moisture, specific gravity, and throughput, precisely matching optimal sorting conditions, stably controlling airflow intensity and sorting trajectory, effectively improving light/heavy material separation precision and purity, meeting diverse material sorting requirements, and ensuring efficient and stable operation.
The equipment adopts a variable frequency fan stepless speed regulation system, allowing flexible adjustment of air volume and negative pressure intensity according to material type, impurity content, and sorting requirements, precisely matching optimal sorting results under different working conditions with strong adaptability. Key positions use flexible connections and sealing gasket structures, effectively compensating for assembly errors and providing sufficient installation redundancy, avoiding air leakage or assembly difficulty due to machining and installation deviations, while reducing equipment maintenance and adjustment costs. The air outlet is equipped with a peak-regulating valve plate to adjust outlet wind speed for different materials.
Equipped with a professional electrical overload protection system, the equipment automatically alarms and shuts down when faults such as overload operation or current anomalies occur, preventing equipment overload damage risks. The main structure uses galvanized sheet and modular design, with the fan and motor connected via V-belt for enhanced rotational stability, adapting to high-dust and high-impact complex working conditions. The fully sealed structure reduces dust erosion, flexible sealing components and damping system reduce operational wear, providing strong overall durability and long service life.
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Excellent overall airtightness, equipped with dust removal equipment
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Adjustable fan impeller speed for precise screening matching
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Adjustable air duct parameters, low operating costs
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Intelligent protection, long equipment service life
Technical Specifications
| Item | Model | Remarks |
|---|---|---|
| Equipment Model | FHZ1200 | - |
| Equipment Dimensions (LxWxH, m) | 10x4x10 | Dimensions vary by specific equipment layout |
| Equipment Weight (t) | 3 | Weight varies by specific equipment layout |
| Processing Capacity (t/h) | 2-3 | Varies by material properties and screening standards |
| Sorting Efficiency | ≥95% | - |
| Feed Width (mm) | 1200 | - |
| Discharge Valve Motor Power (kW) | 4 | Protection class IP55 |
| Fan Power (kW) | 37 | Protection class IP55 |
Application Scenarios
Renewable Resource Industry: Used for density sorting of waste plastics, PET bottles, mixed recycled materials, and other materials, efficiently removing light impurities such as film, paper fluff, and fibers, precisely enriching heavy materials, meeting the needs of fine sorting and efficient recovery in plastic recycling production.
Application Cases
Renewable Resource Recovery Project: Supporting waste plastic, PET bottle recycling, and mixed recycled material sorting production lines, achieving efficient separation of plastic bottles from light impurities such as film, paper fluff, and fibers, precisely removing light impurities and enriching high-purity bottle material. The equipment adapts to complex working conditions with high impurity content and high dust, with stable and controllable sorting precision, significantly improving recovered material purity and processing efficiency, maximizing the value of recycled plastic resource utilization.