Paper And Plastic Waste Rotary Drum Dryer 1TPH-100TPH Industrial Rotary Dryer

Paper and plastic waste drying system rotary drum dryer

1.Product Introduction Rotary drum dryer

The Paper-Plastic Waste Rotary Drying System is a high-efficiency drying solution based on the rotary drum principle. It is specifically designed to handle industrial solid waste such as paper mill residues (ragger tail), plastic films, and plastic granules. By removing moisture, the system achieves volume reduction and stabilization, facilitating downstream resource recovery processes such as incineration, pelletizing, and recycling.

2.Application Rotary drum dryer

This system is widely used in scenarios requiring the processing of large volumes of mixed or single-stream waste:

• Paper Industry: Drying paper mill sludge and pulp residues to prepare them for waste-to-energy incineration or production of solid fuels.

• Plastic Recycling Industry: Drying recycled plastic film fragments and granules to remove residual moisture after washing, facilitating smoother melting and re-granulation.

• Municipal Solid Waste (MSW) Treatment: Drying sorted paper-plastic mixtures to reduce weight and increase their net calorific value (NCV) for energy recovery.

• Related Industrial Sectors: The system is also adaptable for drying materials with similar physical properties in the chemical and metallurgical industries.

3.Working Principle Rotary drum dryer

The system operates as a continuous heat and mass transfer process, which can be broken down into the following stages:

1. Material Feeding: Wet paper-plastic waste is continuously fed into the higher end of the rotating drum via a feeding mechanism.

2. Thermal Heating: Hot air or other heating media are introduced into the drum from either the inlet or outlet end (depending on the co-current or counter-current design).

3. Agitation & Heat Exchange: As the drum rotates, internal lifting flights (shoveling plates) continuously scoop up and shower the material. This tumbling action ensures the waste moves axially toward the lower discharge end while maintaining maximum contact with the hot air stream.

4. Moisture Evaporation: Thermal energy is transferred to the waste, causing internal and surface moisture to evaporate. The resulting water vapor is stripped away from the material surface by the moving air.

5. Exhaust & Discharge: The moisture-laden exhaust gas is extracted by the ventilation system, passed through a dust collector, and then released. The dried waste, now meeting the target moisture specifications, is discharged from the lower end of the drum to complete the process.

4.Advantages Rotary drum dryer

• Efficient Processing of High-Moisture Materials: The rotary drum dryer is exceptionally proficient at handling pasty, slurry-like, or granular materials with high water content. For paper and plastic waste mixed with water (such as pre-treated wet paper pulp or moist plastic fragments), it achieves high-efficiency dehydration through direct contact with hot air, significantly lowering the final moisture content of the material.

• Continuous, High-Throughput Operation: As a continuous drying system, the rotary drum dryer is capable of 24/7 uninterrupted operation, making it ideal for large-scale waste recovery centers. Its processing capacity can range from several tons to dozens of tons per hour depending on the model, satisfying the needs of industrial-scale operations.

• Robust Construction and High Adaptability: Industrial-grade rotary dryers are typically constructed from carbon steel or stainless steel, offering excellent corrosion and wear resistance. This allows the equipment to withstand impurities and corrosive substances often found in waste materials, ensuring a long service life and manageable maintenance costs.

• Energy Efficiency and Heat Recovery Potential: Modern rotary dryer designs (such as triple-pass systems) exhibit high thermal efficiency; some configurations can achieve a self-insulating thermal efficiency of over 70%. The enclosed system effectively minimizes heat loss and can be integrated with waste heat recovery systems. By utilizing exhaust gas to preheat fresh incoming air, energy consumption is significantly reduced, aligning with green energy trends.

5.Technical Specifications Rotary drum dryer

6.Our Solutions