The flotation machine is a main device to realize the flotation process. Materials grinded in the wet-type mill are concocted with the basically single-dissociated minerals into ore pulp of certain concentration. Then they fully interact with flotation medicament in the agitation tank. After that, they will be conveyed to the flotation machine for inflation and stirring. Therefore, the mineralization foam layer is formed on the pulp surface, and to get the foam products (fine ore) with the help of a scraper. From the above, it is self-evident that the structure and the efficiency are critical ingredients affecting the flotation index.
The flotation machine is essential flotation equipment in the modern beneficiation process, which is used to select copper, manganese, silver, gold and antimony ore by flotation. We have the sf series flotation cell and xjk series flotation machine for different ore productions.
Ore flotation cell features
1. it is with stock inlet and gate device, which is used to adjust the slurry scope and mainly composed by a steel plate tank and plate and round bar gate.
2. air charging system: it is composed by catheter and intake pipe. When the impeller rotates, the impeller chamber will produce negative pressure, which could inhale air through the hollow pump line, and diffuse in the slurry to form bubbles, then the slurry is quickly thrown to the stator by rotational force of impeller to further refine the bubbles in the slurry and eliminate the rotational motion of pulp flow in flotation cell, which resulting in a large number of micro-bubble vertically rise and provide the necessary conditions for flotation process.
3. agitating device: it is used to stir the slurry, prevent the ore precipitating in the tank; it is mainly composed by the pulley, impeller and vertical axis; and the impeller is made of resistant rubber.
Dissolved air flotation (daf) is a water treatment process that clarifies wastewaters (or other waters) by the removal of suspended matter such as oil or solids. The removal is achieved by dissolving air in the water or wastewater under pressure and then releasing the air at atmospheric pressure in a flotation tank or basin. The released air forms tiny bubbles which adhere to the suspended matter causing the suspended matter to float to the surface of the water where it may then be removed by a skimming device.
Dissolved air flotation is very widely used in treating the industrial wastewater effluents from oil refineries, petrochemical and chemical plants, natural gas processing plants, paper mills, general water treatment and similar industrial facilities. A very similar process known as induced gas flotation is also used for wastewater treatment. Froth flotation is commonly used in the processing of mineral ores.
In the oil industry, dissolved gas flotation (dgf) units do not use air as the flotation medium due to the explosion risk. Natural gas is used instead to create the bubbles.
In order to increase the flotation machinery efficiency, the development of the new type machine has generally gained much more attention, especially in the recent decade, this machine is developing quite fast.