How to Achieve Over 98% Fiber Removal Efficiency with a Rubber Granulation System

In the global trend of resource recycling, the disposal of waste tires has evolved from simple volume reduction to high-value […]

In the global trend of resource recycling, the disposal of waste tires has evolved from simple volume reduction to high-value utilization. The rubber granulation and fiber removal system, a core component of waste tire recycling, is transforming “black pollution” into “black gold.” This article will comprehensively explore the system’s principles, equipment composition, process flow, and application prospects.

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I. System Definition and Core Value

The rubber granulation and fiber removal system is an integrated tire recycling equipment that converts entire waste tires into high-purity 1–5 mm rubber granules through a complete process of shredding—separation—granulation, while simultaneously achieving efficient separation and recovery of nylon fibers.

Core Values:

  • Efficient Resource Recovery: Separates and recovers all components of tires—rubber, steel wires, and fibers.
  • High-Value Products: The produced rubber granules can be directly used in high-end recycled products.
  • Environmentally Friendly: Fully enclosed dust collection throughout the process meets strict environmental requirements.

II. System Composition and Equipment Analysis

1.Tire Shredder

    • Function: Coarsely shreds entire tires into 50–150 mm rubber blocks.
    • Technical Parameters: Processing capacity 500–10,000 kg/h; motor power 75–250 hp.
    • Core Design: Uses high-strength alloy steel blades to ensure shredding efficiency and durability.

    2.Tire Rasper

      • Function: Further refines rubber blocks to 10–30 mm and initially separates steel wires.
      • Technical Parameters: Rotational speed 500–1,500 rpm; blade material is high-wear-resistant alloy steel.
      • Separation Principle: Achieves initial separation of rubber and steel wires through high-speed rotation-generated impact and friction.

      3.Tire Granulator

        • Function: Processes clean rubber blocks into uniformly sized 1–5 mm granules.
        • Technical Parameters: Uses precision die design to ensure consistent granule size.
        • Innovative Design: Modular structure for easy maintenance; capacity can be flexibly adjusted based on requirements.

        4.Fiber Separator

          • Function: Efficiently separates nylon fibers from rubber granules.
          • Technical Parameters: Uses air separation or vibratory screening technology; fiber separation rate ≥98%.
          • Core Advantage: Separated fibers can be recovered and utilized separately, achieving full-component resource utilization.

          5.Pulse Dust Collection System

            • Function: Dust control throughout the process to ensure compliance with emission standards.
            • Technical Parameters: Dust removal efficiency ≥99.9%; emission concentration ≤10 mg/m³.
            • Design Feature: Intelligent ash cleaning system ensures long-term stable operation.

            III. Detailed Process Flow

            1.Intensive Shredding Stage

              Waste tires (passenger car, truck, etc.) first enter the tire shredder, where they are shredded into 50–150 mm rubber blocks under strong shear force, preparing them for subsequent fine separation.

              2.Steel Wire Separation Stage

                Rubber blocks enter the tire rasper, where rubber and embedded steel wires are completely separated through high-speed rotation and physical friction. Separated steel wires can be directly sold as high-quality scrap steel.

                3.Fiber Removal Stage

                  After steel wire separation, rubber blocks still contain small amounts of fibers. The fiber separator effectively removes these lightweight fibers using air separation or vibratory screening, ensuring the purity of rubber raw materials.

                  4.Fine Granulation Stage

                    Purified rubber blocks are fed into the granulator, where they are extruded and die-cut into uniformly sized, clean 1–5 mm rubber granules. This stage is critical for determining the final product quality.

                    5.Dust Collection and Packaging Stage

                      The pulse dust collection system controls dust throughout the process to ensure a clean workshop environment. Finished rubber granules are screened and packaged according to customer requirements.

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                      IV. System Advantages and Features

                      1.High Efficiency and Yield

                        Automated production line design provides strong processing capacity and continuous stable operation, significantly improving recovery efficiency.

                        2.Pure Products

                          Multi-stage separation process (steel wire separation + fiber separation) ensures the production of high-purity, low-impurity, and high-market-value rubber granules.

                          3.Fast Return on Investment

                            Converts waste tires into directly marketable rubber granules and steel wires, creating sustainable economic benefits.

                            4.Durability

                              Core components of the equipment are made of high-strength, wear-resistant materials, capable of withstanding the harsh conditions of tire shredding, ensuring a long service life.

                              5.Environmental Compliance

                                Fully enclosed dust collection throughout the process; emission indicators exceed national standards, meeting the strictest environmental requirements.

                                V. Raw Materials and Product Applications

                                Processable Raw Materials:

                                • Passenger car tires
                                • Truck tires
                                • Off-the-road (OTR) tires
                                • Bicycle tires
                                • Other rubber products (can be adjusted based on equipment configuration)

                                Final Products:

                                • High-purity rubber granules (1–5 mm)
                                • Clean recycled steel wires
                                • Separated and recovered nylon fibers

                                Application Areas:

                                • Construction materials such as rubber floor tiles and running tracks
                                • Rubber products (seals, gaskets, etc.)
                                • Modified asphalt for road construction
                                • Recycled rubber production
                                • Steel wire recycling for steelmaking

                                VI. Market Prospects and Economic Benefits

                                With the growing global emphasis on environmental protection and resource recycling, the waste tire recycling industry is entering a period of rapid development. The rubber granulation and fiber removal system, as a key technology for high-value utilization of tires, continues to see increasing market demand.

                                Economic Benefit Analysis (based on annual processing of 10,000 tons of waste tires):

                                • Rubber granule output: ~6,000 tons
                                • Steel wire output: ~1,200 tons
                                • Fiber output: ~800 tons
                                • Annual sales revenue: ~50 million yuan
                                • Investment payback period: ~3 years

                                VII. Future Development Trends

                                1.Technological Innovation Directions

                                  • Intelligent control systems to achieve real-time optimization of process parameters
                                  • New separation technologies to further improve rubber purity and fiber separation rate
                                  • Modular design for flexible configuration based on different raw materials and production requirements

                                  2.Industrial Chain Extension

                                    • Extend from simple granule production to high-end recycled products
                                    • Develop high-value-added products based on recycled rubber granules
                                    • Build a complete “collection—processing—application” industrial chain

                                    3.Global Layout

                                      With the increase in vehicle ownership in developing countries, demand for waste tire disposal will grow rapidly, shifting market focus to emerging markets.

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                                      VIII. Conclusion

                                      The rubber granulation and fiber removal system is not only a technological innovation but also key to the resource utilization of waste tires. It transforms “black pollution” into “black gold,” making significant contributions to the circular economy and sustainable development. With continuous technological progress and market maturation, this system will undoubtedly play an increasingly important role in future waste tire recycling.

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