The tailings jet flotation machine is mainly composed of a tank body, a swirling jet aerator and a tailings discharge device. The swirl jet aerator is a jet emulsification device. It has an emulsification effect on the agent, which can disperse the liquid and the gas stream into a very fine state, so that the bubbles and the agent are emulsified.
Its working principle is the same as the jet pump. The sand pump is used as the power source to generate the rotary slurry jet, and the air medium is sucked into the flotation tank. Because the slurry is pressurized, when the slurry is injected into the flotation machine from the nozzle outside the tank, the pressure The drastic drop makes the air supersaturated in the pulp. At this time, the air in the dissolved slurry first precipitates on the surface of the hydrophobic mineral in the form of microbubbles, and a large amount of active microbubbles are precipitated to strengthen the mineralization process of the bubbles. At the same time, a baffle of suitable distance and height is arranged in the flotation tank to ensure better dispersion of the air, prevent premature discharge of the ore out of the tank, and further consume the jet energy. The baffle also forces the slurry to go up first, then horizontally, and finally down through a relatively stable discharge area. Mineralized bubbles accumulate in the upper part of the trough to form a foam layer. The mineralized bubbles are re-enriched in the foam layer, and finally the concentrate passes over the overflow weir and exits the tank. An adjustable tailings discharge ram is provided on the side of the tank to raise or lower the slurry flotation level or empty the flotation tank.
Key technology: patented equipment tailings jet flotation machine is a new type of flotation machine without mechanical agitation for slurry pressurization and air inhalation. Compared with general flotation machine, it has fast sorting speed, large processing capacity and easy flotation operation. Significant features such as high recovery and high enrichment ratio.
Since the slurry is pressurized by the pump and then enters the flotation tank instead of self-flowing, the flotation efficiency is high; it does not cause the slurry short-circuit cycle, and all the advantages can be obtained from the single-tank equipment. The active microbubbles produced by the invention are advantageous for the flotation of fine particles which are difficult to be recovered by the ordinary flotation machine and the difficult selection of mineral particles; and at the same time, the mechanical transmission part of the conventional flotation machine can be eliminated, and the energy consumption can be minimized.
The production process uses a coarse and fine flotation process. The flotation tailings of the plant dam ore quenching plant are treated by adding and stirring, and then pumped to the large-capacity patented equipment for sorting; the obtained coarse concentrate is pumped to the appropriate capacity. This patented equipment is selected and selected, and the obtained concentrate is the final product.
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