A rotary kiln device for roasting of reconditioning slag and lithium spodumene / battery powder

By combining the anti-clogging components, the drag-reducing components, and the extrusion-type air-blowing components, the problem of melt ring formation in the rotary kiln was solved, achieving efficient melt stripping and cleaning, and improving calcination efficiency and product quality.

CN122360105APending Publication Date: 2026-07-10HENGYANG CHENGYU ZINC PROD CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HENGYANG CHENGYU ZINC PROD CO LTD
Filing Date
2026-05-19
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

In existing rotary kiln equipment, during the roasting of overhaul slag and spodumene/battery powder, the melt forms rings and clumps on the kiln wall, resulting in low equipment operating efficiency, high maintenance costs, and affecting roasting efficiency and product quality.

Method used

By employing the coordinated use of anti-clogging components, protrusion drag-reducing components, and extrusion-type air-blowing components, the system automatically prevents the melt from forming rings on the inner wall through scraping, extrusion, and air blowing. Combined with a cleaning component, it removes residue and achieves efficient melt stripping.

Benefits of technology

It effectively prevents the melt from forming rings and accumulating on the inner wall, improves calcination efficiency, reduces downtime, and enhances product quality and equipment operational stability.

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Abstract

The present application relates to a kind of rotary kiln device of overhauling slag and lithiumite / cell powder calcination, it is related to rotary kiln related technical field, including supporting platform, feeding equipment, built-in cylinder, sliding groove, cylinder, built-in groove, anti-conclusion component, convex drag reduction component, extrusion type gas blowing component, cleaning component, the present application can solve in the mixed calcination process of overhauling slag and lithiumite / cell powder, fluoride in overhauling slag, cryolite and metal salt in cell powder, under high temperature environment of 800-1000 ℃, complex physical and chemical reaction occurs easily, form low melting point eutectic liquid phase, these liquid phase material has extremely high viscosity, surface tension and adhesion, will firmly adhere to kiln wall, only rely on gravity, these melts can only extremely slowly "creep" or "slip" on kiln wall surface, its root firmly adheres to the surface of heat-resistant layer, when kiln body rotates and it enters high temperature zone again, these melts will be re-baked hard, cause ring problem.
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Citation Information

Patent Citations

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