Principle of impeller flotation machine and precautions after maintenance

Principle of impeller flotation machine and precautions after maintenance

The slurry is fed into the impeller by the feed pipe, and the centrifugal force generated by the swirling impeller is thrown into the groove, so that a negative pressure is formed under the cover plate, and the air is automatically taken in by the intake pipe.

The inhaled air and the fed slurry are mixed together in the upper part of the impeller and thrown into the tank, thus generating a negative pressure and sucking in the air, thus continuously.

In the drug-producing pulp, the floating mineral is carried by the bubble to the surface to form a mineralized foam layer, which is scraped off by the scraper to obtain a concentrate.

The minerals and gangues that do not float up enter the intermediate chamber through the gates on the side walls of the trough and are fed into the next flotation tank. The adjustment of the slurry level in each or several tanks is completed by adjusting the gates.

The slurry is actually circulating in the machine.

After the flotation machine is overhauled, the flotation cell should be carefully inspected and cleaned before the test, and then the empty car test run, and gradually added to the clean water operation (note the size of the circulation hole) until the ore is delivered.

At the same time, it should be noted that the impeller body is checked for bias and impact.

When starting the motor, check the direction of rotation of the motor shaft. It must be ensured that the impeller shaft rotates clockwise (top view).

In use, attention should be paid to the adjustment of the slurry level, that is, the degree of opening of the gate. Only by adjusting the height of the slurry surface in time can the foam be effectively scraped and the slurry can be prevented from overflowing into the foam tank.

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