Technological measures for flotation of fine-grained materials in Henan Bochuang flotation machine

 

 

　　 The flotation of the fine-grained material of the flotation machine is difficult to separate due to the brown of various shades, and the streaks are yellow and brown. The main reasons are as follows:

1. The specific surface area of ​​the fine particles is large, and the surface energy is significantly increased. Under certain conditions, non-selective mutual condensation between the surfaces of different minerals is prone to occur. On the other hand, it is also because the surface energy of the fine particles is large, and although the adsorbing power is high for the agent, the poor adsorption property is selected, which makes it difficult for the fine particles to be selectively separated.

2 , the fine particles are small, and the possibility of collision with bubbles is small. The fine grain quality is small, and when it collides with the bubble, it is difficult to overcome the resistance of the hydration layer between the ore particle and the bubble, and it is difficult to adhere to the bubble.

The technical measures to solve the difficult flotation of fine materials are as follows:

1. Selective flocculation flotation. The flocculant is used to selectively flocculate the target mineral particles or gangue fines, and then separated by flotation.

2 , carrier flotation. The mineral particles of the general flotation grade are used as a carrier to float the target mineral fine particle cover on the carrier. The carrier can be either a mineral of the same type or a heterogeneous mineral. For example, pyrite can be used as a carrier for flotation of fine gold. Calcite is used as a carrier to float fine iron and titanium impurities in kaolin.

3 , agglomeration flotation, also known as emulsified flotation. After the fine-grained mineral is treated by the collector, it forms an oily foam with ore under the action of a neutral oil. The collector and neutral oil can be first formulated into an emulsion and then added to the slurry. Neutral oil and collector can also be added to the high quality fraction ( 70% solids ) pulp, stirred vigorously, controlled for time, and then scraped off the upper layer of foam. This method has been applied to fine-grained manganese ore, ilmenite and apatite.

Relevant knowledge of flotation process of fine-grained material in ore dressing production line and mining machinery information such as flotation machine, flotation equipment, magnetic separation equipment and mineral processing equipment, welcome to consult Henan Bochuang Machinery Equipment Manufacturing Co., Ltd. - mineral processing equipment manufacturer !

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