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  • SPENT POTLINING (SPL) LITHIUM EXTRACTION SYSTEM

    Application Scope: Electrolytic alumina slag, spent potlining (SPL), carbon slag, etc.

    The Spent Potlining Lithium Extraction System is a core pretreatment system for the comprehensive utilization of spent potlining (SPL). Designed specifically for the crushing and grinding of electrolyte materials, the process includes multi-stage crushing, segmented ball milling, precision classification, and full-process dust collection.

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    Introduction

    The Spent Potlining Lithium Extraction System is a core pretreatment system for the comprehensive utilization of spent potlining (SPL). Designed specifically for the crushing and grinding of electrolyte materials, the process includes multi-stage crushing, segmented ball milling, precision classification, and full-process dust collection. It processes bulk electrolyte raw material into particle sizes suitable for subsequent lithium extraction, providing a high-quality base. The system balances production efficiency and environmental standards, adapts to high-altitude conditions, and features a well-organized equipment layout with smooth, efficient operation.

    Advantages

    1. Strong High-Altitude Adaptability & Stable Operation
    Designed for low pressure and low temperature at high altitudes. Key components (motors, fans, dust collectors) are high-altitude rated. The oil station includes a heater, and low-voltage motors have IP65 protection, enabling year-round stable operation in harsh high-altitude conditions.

    2. High Grinding Precision & Uniform Product Particle Size
    Two-stage crushing pre-refines the material. A three-compartment ball mill performs staged grinding, paired with a variable-frequency precision classifier. Final product fineness is stable at 120 mesh with ≥95% passing rate, ensuring excellent uniformity and significantly improving downstream lithium extraction efficiency.

    3. Closed-Loop Process – 100% Raw Material Utilization
    Oversized particles are returned to the mill; no material waste. Full-process dust collection efficiency ≥99.9%, and all collected dust is recycled to the finished product silo, achieving zero dust emission and full material utilization.

    4. Environmental Compliance & Green Production
    Particulate emissions ≤10 mg/Nm?, well below national standards. Offline pulse-jet bag filters prevent secondary pollution. The circulating water system enables water reuse, meeting green production standards.

    5. Easy Operation & Maintenance – Cost-Effective

    Equipped with precise metering and anti-bridging devices; highly automated. Wear parts use durable materials, easy to disassemble and replace, with low failure rates. One-stop supply, installation, commissioning, and technical training reduce operating and maintenance costs.

    Technology

    Raw Material Impurity Removal & Crushing → Pre-mill Metered Feeding → Fine Grinding → Classified Separation & Coarse Return → Finished Product Conveying & Buffering → Full-process Dust Collection & Auxiliary Systems

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