5500 t/d Lithium Ore Processing Plant

Case Details

Introduction: The 5500 t/d Lithium Ore Processing Plant is a large-scale mineral processing facility specialized in extracting lithium from pegmatite or spodumene ores. Adopting mature and reliable processing technology combined with intelligent control systems, the plant realizes large-scale continuous production, featuring high lithium recovery rate and stable product quality. It has strong adaptability to different lithium ore grades and can flexibly adjust parameters to meet downstream battery-grade lithium salt production requirements.

The process mainly adopts the "crushing-grinding-flotation-concentration" route, focusing on efficient separation of spodumene from gangue minerals. The key steps are as follows:

• Crushing & Screening

Raw lithium ore is crushed by jaw crusher, cone crusher in three stages, and screened by vibrating screen to obtain crushed ore with particle size below 10mm, providing qualified materials for subsequent grinding.

• Grinding & Classification

Crushed ore is ground in a ball mill, and classified by a hydrocyclone to control the grinding fineness to -200 mesh accounting for 75-80%, ensuring complete liberation of spodumene minerals.

• Flotation Separation

Classified ore pulp is fed into a flotation cell, and after adjusting pH value, spodumene collector (e.g., fatty acid) and frother are added. Spodumene adheres to bubbles to form rough concentrate, which undergoes 3-4 times of cleaning to remove impurities such as feldspar and quartz, obtaining high-grade spodumene concentrate (lithium oxide grade ≥6.0%).

• Concentration & Dehydration

Spodumene concentrate is concentrated by a thickener to increase pulp concentration, then dewatered by a filter press to reduce moisture content to ≤10%, which is convenient for storage, transportation and subsequent processing.

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