Piab Group
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Coating Granulation

The anode material coating granulation vacuum conveying system is an industrial equipment that forms a uniform coating layer on particle surfaces through physical and chemical methods. The system establishes a negative pressure environment using a vacuum pump, enabling efficient material transfer as a gas-solid two-phase flow in sealed pipelines. After filtration by a separator, the material enters the coating granulation unit. It employs PLC for precise control of adhesive dosage (±0.1%) and temperature (±2℃), combined with cyclone dust collection (efficiency >99%) and dust recovery (≥95%). Under nitrogen protection, it completes pyrolysis granulation at 200–500℃ and material transfer for graphitization at 2800℃, ultimately achieving dust-free packaging of anode materials with particle sizes of 6–10μm. The entire system reduces energy consumption by 30%.

The anode material coating granulation vacuum conveying system enables dust-free integration of processes such as raw material crushing and mixing, airflow milling, pyrolysis granulation, ball milling and sieving, and graphitization through enclosed negative pressure conveying. Calcined coke is conveyed in a sealed manner to a mechanical mill for grinding. The ground graphite and binder (pitch) are then vacuum-transferred to a buffer weighing system. After metered proportioning, the materials are fed into a mixer for physical blending. The mixed material is vacuum-conveyed to the granulation reactor. After granulation, the material is shredded in a crusher and transported via the vacuum conveying system to a disaggregator for deagglomeration and classification, finally being collected in a pre-carbonization buffer silo, thereby completing the granulation process.

Product Advantages

Conveying Efficiency: Continuous feeding, fast and efficient, with metered proportioning, supporting tens of thousands of tons of production capacity.

Energy Consumption Control: 30% lower energy consumption compared to traditional mechanical conveying, with high-efficiency energy conversion of the vacuum pump.

Space Utilization: Modular pipelines allow flexible layout (horizontal/vertical orientation), saving 30% of workshop space.

Reduced Manual Dependency: Fully automated operation minimizes manual intervention, with feeding error ≤0.3%.