The effect of the depth of the flotation machine on the quality of the concentrate and the recovery rate, the depth of the flotation tank increases, the air consumption in the flotation tank decreases, the bubble rise distance is large, and the collision probability between the bubble and the ore particles is increased; It is easy to form a stable foam zone and a long separation zone during the process, which is beneficial to the improvement of the quality of the concentrate of the flotation machine and the improvement of the recovery rate; the deepening of the tank body and the increase of the negative pressure in the flotation tank are favorable for the precipitation of fine bubbles. Improve the fine particle flotation effect.
The groove depth is an important factor affecting the mass flow rate per unit section. From the kinetic point of view, the concentrate grade and recovery rate depend on the mass flow rate of the target mineral and gangue minerals, improve the target mineral or reduce the quality of the gangue mineral. The flow rate can increase the concentrate grade or recovery rate.
Test Control flotation machine speed is 2200 rpm, the amount of inflator 200L / h, flotation and flotation agents Jing system operating conditions change, the depth of investigation between the flotation concentrate and flotation trans ratio of aluminum and silicon recovery relationship.
As the depth of the flotation tank increases, the air consumption in the tank decreases, the bubble rising distance increases, and the collision probability between the bubbles and the ore particles increases, which is conducive to the improvement of concentrate grade and recovery rate.
At the same time, increasing the depth of the tank, it is easy to form a relatively stable foam zone and a longer separation zone during the flotation process, which is conducive to the improvement of concentrate quality and recovery rate. When the depth of the flotation cell increases from 131mm to 177mm, the recovery rate of concentrate Al20 increases from 73.41% to 77.99% under the premise that the ratio of refined aluminum to silicon is close.
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