SU419253A1 - FLOATING MACHINE - Google Patents

Description

one

The invention relates to mineral processing equipment and can be used for the simultaneous enrichment of minerals with deposit and flotation.

Known flotation machines, including housing, jigging sieves, air chambers, air pulsators, dispersers, loading and unloading devices. These machines have a low productivity and efficiency of simultaneous mineralization of the deposit and flotation, as the initial power is supplied to them by a loading device located on one end, and the flotation products are directed to the drain threshold of the machine from the opposite side, while the foam should be removed from the flotation process along the entire length of the flotation front so that the path of the foam to the discharge threshold does not take longer than is required for flotation.

The described flotation machine differs from the known ones in that it is equipped with foam splitters, which are made in the form of two curvilinear surfaces that form a downward edge at the junction. This allows for intensifying the process of the flux casing by reducing the time and route for transporting the froth product to the foam gutters.

FIG. 1 schematically depicts the described flotation equipment, longitudinal

incision; in fig. 2 - the same cross section.

The flotation machine comprises a body 1 assembled from separate sections equipped with sub-mesh air chambers 2, jigging sieves 3, with dispersers 4, air driven pulsators 5 with a drive, charging 6 and discharging 7 devices. To unload the foam pipe, the dividers 8, adjustable thresholds 9 and foam receivers 10; products that do not go to the drain, are discharged through the threshold 11, and the oversize - through the threshold 12. Prepared for the processing of the pulp, after contact with reagents, enters the loading device 6.

The loading device is a box-like structure equipped with a loading pipe and a device for evenly distributing the power over the entire width of the flotation cell. The lower part of the boot device is equipped with a power distributor, made in the form of a tray,

composed of two curved surfaces forming the pulp flow divider.

The flow divided by the divider is directed to the flotation cages, where under the action of ascending and descending oscillations of water and dispersed air, the mineral mixture separates by density, size and hydrophobic properties. At the same time, pre-bedded, undersize and frothy products and products evolving into the drain through drain threshold 11 are released. Particles of heavy mineral (having a hydrophobic surface treated with reagents) adhere to air bubbles continuously discharged from dispersants 4 that are evenly spaced throughout Flotation areas, carriages in the foam layer and gravity discharge into the foam collectors 10, located along the axis of the machine on both sides of the flotation cells.

In order to shorten the transport path of the foam into the foam gutters, there are dividers located along the longitudinal axis of the machine and made of two curvilinear surfaces, forming a downward edge at the junction. The height of the yen removal is regulated in each chamber by installing slats on the drain thresholds 9. The machine is provided with regulation of the size of air bubbles by changing its pressure by

dispersants of elastic material. The zero level is regulated by the height of the drain threshold 11 at the discharge ends of the machine, through which the slurry and flotation tailings are discharged. There is also a height adjustable threshold 12 for the release (as it accumulates) of the oversize jigging product. The undersize jigging product is evacuated from funnels located in the lower part of the Cornus 1.

Subject invention

A flotation tank, including the hull, jigs, air chambers,

air pulsators, dispersants, loading and unloading devices and foam collectors, in order to intensify the flotation process by reducing the time and route for transporting the foam product into foam collectors, it is equipped with foam dividers, which are shaped as two curved surfaces forming at the junction the edge directed downwards.

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