The lepidolite ore crusher (also known as a double-roll crusher) is fully capable of serving as crushing equipment for lithium mica ore, particularly during the medium and fine crushing stages. It effectively meets the requirements for particle size control and over-crushing rates in lithium mica mineral processing.

lepidolite ore crusher

1. Working Principle

The working principle of the double-roll crusher is highly intuitive and efficient: two rolls rotate toward each other driven by an electric motor. Lithium mica ore enters the crushing chamber formed between the rolls through the top feed opening, where it is continuously crushed by compressive and shear forces. The maximum discharge particle size can be precisely controlled by adjusting the gap between the two rolls. When uncrushable hard foreign objects enter the system, the equipment automatically retracts the rollers via spring or hydraulic overload protection systems. After the foreign object is expelled, the system automatically resets, effectively safeguarding the machine’s core components from damage.

2.Advantages

Precise particle size control for optimized flotation efficiency

The flotation efficiency of lithium mica is highly dependent on the particle size distribution of the mineral.

Patented processes demonstrate that the sequence “jaw crusher for coarse grinding,

double-roll crusher for fine grinding” ensures lithium mica particle size distribution meets specific requirements of 40 mesh to 200 mesh and -200 mesh.

This facilitates thorough interaction between clay-bearing iron lithium mica and flotation reagents,

achieving complete dispersion of the pulp solution and surface activation of the iron lithium mica.

Effectively Reducing Over-Grinding Rate

The slow compression crushing method significantly reduces the production of excessively fine powders.

Overly fine mineral slimes not only adsorb large amounts of flotation reagents, increasing costs,

but also degrade the flotation environment, adversely affecting concentrate grade and recovery rates.

Optional pollution-free configuration ensures product purity

For applications demanding stringent metal contamination control in lithium mica concentrates (e.g., battery materials),

the roll crushers’ rollers and material-contacting components can be fabricated from non-metallic or corrosion-resistant materials like zirconia or SUS304 stainless steel.

This prevents contamination from iron and other impurities, guaranteeing final product purity.

Simple structure with energy efficiency and environmental protection

The relatively simple structure facilitates maintenance. Integrating a double-roll crusher into the grinding system maximizes the production capacity of grinding equipment,

typically increasing output by 30%-40% while reducing total energy consumption by 20%-30%.

Equipped with internal dust shields and excellent sealing performance,it effectively prevents dust leakage and operates with low noise levels.