How much do you know about the four common types of flotation machines?

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The origin of flotation machines dates back to the Ming Dynasty in my country. At that time, flotation machines were mainly used in the pharmaceutical and metallurgical industries. Flotation used the hydrophobicity of mineral surfaces to purify mineral drugs such as cinnabar and talc, making the minerals The fine powder floats on the water surface and is separated from the sinking gangue. By the end of the 19th century, the demand for metallic minerals soared, and in order to further improve the selection of minerals, the flotation method was clearly proposed.

Nowadays, there are many types of flotation machines. Their classification is mainly based on different aeration methods, different stirring methods, different structures of the stator and rotor of the flotation machine, and different tank configurations. The body shape and depth are different, the movement and circulation of the slurry in the tank are different, the way the flotation tank enters is different, and the foam products are discharged in different ways. According to the above classification of flotation machines, flotation machines are divided into four major categories:

1. Mechanical agitation flotation machine

The main feature of the mechanical agitation flotation machine is that the aeration and stirring of the slurry are achieved by a mechanical agitator. Self-priming air (air is sucked in near the mechanical stirring device at the bottom of the flotation tank) and self-priming slurry. In the flotation production line, the intermediate product does not need to be transported by a sand pump when returning. Therefore, this type of flotation machine can highlight its superiority and flexibility in process configuration, and because it can absorb air by itself, it does not require an external fan to aerate the slurry.

According to different models, it can be divided into: xjk type mechanical stirring flotation machine (often called A-type flotation machine in the selection plant), sf type mechanical agitation flotation machine, jjf type mechanical agitation flotation machine machineand xjb rod flotation machine, etc.

2. Inflatable agitator flotation machine

2. Inflatable agitator flotation machine

2.充气搅拌式浮选机

2. Inflatable stirring flotation machine

2.充气搅拌浮选机

The main difference between the inflatable agitation flotation machine and the mechanical agitation flotation machine is that the inflatable flotation machine is an external air supply, its agitator only plays a stirring role, and the air is specially provided externally. Forced in by the fan.

As the air is supplied by an external blower, the aeration amount can be adjusted through valves according to the needs of flotation. The impeller only plays a stirring role, and the speed is low, so the stirring is not easy. It is very strong, and the flotation of brittle minerals is not prone to sludge. The slurry surface is relatively stable, and it is easy to form a stable foam layer, which is conducive to improving the separation index. Because the impeller speed is low, the slurry flows by gravity, so the unit processing capacity is It has low power consumption, long service life, and low equipment maintenance costs.

Because the inflatable agitation flotation machine cannot self-aspirate, the intermediate product needs to be transported by a sand pump when returning. In addition, additional air equipment is required, which makes management cumbersome. Therefore, this kind of flotation machine is often used for processing Simple ore roughing and sweeping operations.

According to different models, it can be divided into: kyf inflatable agitator flotation machine , xcf inflatable agitated flotation machine, bs-k inflatable agitated flotation machine, clf inflatable agitated flotation machine, etc.

3. Flotation column

The flotation column is a kind of inflatable flotation machine. Its main feature is that it has no mechanical agitator and no transmission parts. The aeration of the slurry is mainly pressed in by an external air compressor.

The structure and process flow of the flotation column are simple, the machine consumes less power, has fewer wearable parts, and is easy to operate and manage. However, when the flotation column is used to process alkaline slurry, the aerator will be clogged due to calcium formation, thereby damaging the production process. Therefore, the flotation column is more suitable for roughing and sweeping operations of easy-to-select ores with a simple composition and high grade. .

4. Gas precipitation flotation machine

The gas precipitation flotation machine is also called a variable pressure or pressure-reducing flotation machine. Its main feature is that it can precipitate a large amount of foam from the solution. The main equipment includes jet flotation machine and cyclone flotation machine.

The above are the four common types of flotation machine equipment. Although the use and research and development of flotation machine equipment in our country are relatively late, my country's flotation machine equipment has made major breakthroughs in research, development and innovation in the later period.