10TPH Lepidolite Processing Plant

10TPH Lepidolite Processing Plant

Release time:16 May 2023

Lepidolite Processing Plant

A Lepidolite Processing Plant is a facility that specializes in the extraction and processing of lepidolite, a mineral belonging to the mica group. Lepidolite is a lithium-rich mineral primarily used to produce lithium-ion batteries, widely used in various electronic devices and electric vehicles.

The processing plant is responsible for extracting lepidolite from its natural sources, such as mines or quarries, and then processing it to obtain lithium carbonate or other lithium compounds. The extraction process typically involves mining the lepidolite ore, then crushing and grinding it into a fine powder. The powdered ore is then subjected to various physical and chemical processes, including flotation, roasting, and leaching, to separate and concentrate the lithium content.

10 TPH Lepidolite Processing Plant

Flowchart of 10TPH Lepidolite Processing Plant

This setup is for processing lepidolite stone ore to recover lithium. It is a flotation separation plant with a high recovery ratio for Li2O. For lepidolite ore, the lithium concentrate (Li2O) grade can reach about 4-5% after processing, and the final exact Li2O depends on Li2O in raw material and other minerals conditions.


The full processing plant includes four systems: a crushing system, grinding system, flotation system, concentrate filtering system & tailing treatment system.


Primary machines include raw material feeding hopper, chute feeder, jaw crusher, hammer crusher, belt conveyor, electromagnetic vibrating feeder, fine ore bin, ball mill, hydro-cyclone, mixing tank, flotation machine, slurry pump, thickener, disc vacuum filter machine, etc.

Lepidolite Processing Plant


Crushing System


A chute feeder feeds raw material(below 210mm) to the primary jaw crusher stably and evenly.

The jaw crusher is for the primary crushing of big stones below about 30mm, then output from the jaw crusher will go to the hammer crusher for secondary crushing. The output from the hammer crusher is below 5mm, then the output from the hammer crusher will go to the fine ore bin by belt conveyor.

The smaller the feeding material size to the ball mill, the better, so the ball mill grinding efficiency will be higher, and the effect will be much better.


Grinding System


Since the 0 to 5 mm material is stocked in the fine ore bin, so needs to feed to the ball mill by an electromagnetic vibrating feeder. The ball mill is for grinding material to a small fine powder to liberate Li2O as much as possible out from lepidolite ore so that the following flotation separation can get the best recovery ratio.

For lepidolite ore, the final product of 120 mesh occupies 60 to 70%. So to get those fine powder sizes, the ball mill needs to work together with hydro-cyclone, overflow of the hydro-cyclone will be the 100 to 200 mesh fine slurry, and the coarse underflow particles will go back to the ball mill for grinding again to be closed-circuit. So from this grinding system will get 100 mesh to 200 mesh slurry.


Flotation System


The 100 to 200 mesh slurry will be first sent to mixing tanks by slurry pump to ensure the material is mixed completely, then material from the mixing tanks goes to flotation machines. At the same time, I need to add relevant chemicals in the flotation machine to separate Li2O.

The flotation process has primary separation to get concentrated ore and tailings. Another two stages of flotation will process the concentrated ore and tailings also will be processed by another two stages of the flotation process. In this way, it can increase the Li2O recovery ratio and make the Li2O grade as high as possible. So after the flotation process, I will finally get high-grade Li2O. The flotation system can be adjustable according to real material conditions.


Concentrate ore filtering system


After getting the Li2O to concentrate ore from the flotation system, it is with water, so it needs to dewater. Because the size is very small, fine 100 to 200 mesh, so firstly use a thickener to thicken the concentrate, make higher density, then use a disc vacuum filter machine to filter water and dry Lithium concentrate ore.


Tailing treatment system


The tailings from the flotation system it is with water and needs to be dewatered, so we use a cone-thickener to thicken the tailing, make higher density, then use a filter press to filter water and the tailing.

The water from the thickener, vacuum filter, and filter press can be reused to process plants.

This lepidolite ore flotation processing plant is highly effective in recovering Lithium(Li2O). The plant design can be customized per rock minerals conditions and customer capacity requirements.

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