Methods of beneficiation of Fluorite: hand-selected, re-elected, flotation

The processing method of fluorite dressing is mainly based on the type of ore, the composition of ore, the grade of ore and so on. At present, China's fluorite mining methods include hand separation, gravity (jig) separation and flotation.

First, hand selection is mainly used for fluorite and gangue boundary is very clear, waste stone easy to remove, a variety of different grades of ore easy to identify the naked eye of the fluorite mine. is one of the most convenient and economical beneficiation METHODS.

The process of manual ore dressing is generally: raw ore - washing - screening - hand sorting. The raw ore after punching and screening is divided into large blocks, medium blocks, and particles (particle size 6 ~ 15mm) enter the field of hand sorting. By manual sorting and grading, the particles enter jig and the debris is processed into fluorite concentrate in the flotation plant.

Second, Gravity (jig) beneficiation is mainly used to select the ore grade, particle size in the 6~20mm particle mine. Gravity beneficiation has the advantages of simple structure, convenient operation and remarkable Efficiency. It has been widely used in mine with large amount of particles and high grade.

The fluorite ore obtained by hand separation and reseparation is mainly used in metallurgy (metallurgical grade ore).

Third, flotation, also known as planktonic Beneficiation. This method is widely used in fluorite mines at home and abroad, and is the method to obtain high quality fluorescent (fluorine) ore Concentrates. Whether it is a single fluorite ore or a co-fluorite ore, whether it is a simple ore-structured fluorite ore or a complex fluorite ore, the flotation method can be used for both crystalline coarse grained and fine grain-embedded fluorite ores.

The flotation process depends on the nature of the ore, that is, whether it is a single fluorite ore or a concomitant (co-) fluorite ore. Flotation with (co-existing) fluorite ore is usually done first by polymetallic ore and then by fluorite. The flotation process is the same as that of mono-fluorite ore.

At present, China's flotation process is mainly divided into three stages, namely crushing, grinding and dehydration. The core equipment of flotation process is flotation machine.