SU900866A1 - Flotation machine - Google Patents

Description

(54) FLSTATION MACHINE

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The invention relates to the beneficiation of minerals and can be used, in particular, for the flotation of non-ferrous metal ores.

A known flotation machine comprising a chamber, a shaft, an impeller, and an electrolysis cell consisting of a lower electrode fixed at the bottom of the chamber and an upper mesh electrode attached to the side walls of the chamber on Cll insulators.

The disadvantage of the described device is the sticking of a portion of hydrogen and oxygen into the surface of the electrodes to the surface of the electrodes, which leads to a gradual increase in the coexistence of the medium between the anode and the cathode and additional. loss of electricity.

The closest to the proposed technical sys tem is the flotation plant, which includes a chamber, a shaft with an impeller fixed in the frame, and an electrolysis cell, one of whose electrodes is mounted on the impeller 2.

Bearings and insulating gaskets, of a known mashine, located between the shaft and the frame, have a limited service life, since they are made of a non-conductive material, such as a textolite, in order to isolate the current-carrying parts (shaft, electrode on the impeller) from the machine body. The disadvantage is also the supply of current to the electrode on the impeller through the rotating part 10 of the shaft, using a clamping conductive device including a carbon rod and a clamping spring mounted on a holder mounted on the frame of the machine

15 proximity to the shaft.

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The presence of bearings in a non-conductive design, insulating shaft gaskets and elements of the current-carrying device complicates the design of the flotation industry, and also means the operating costs due to the need for an individual mode of physiculary revisions.

The chain of the invention is a reduction in operating costs.

The goal is achieved by the fact that the machine is equipped with a dielectric cup mounted on the bottom of the chamber, inside which is placed the second electrode.

The drawing shows a flotation machine.

The device comprises a frame 1, a chamber 2, a shaft 3, an impeller 4 and an electrolysis cell consisting of electrodes, while the lower electrode 5 is fixed on the bottom of the chamber in the dielectric cup 6, and the upper electrode 7 on the impeller. The electric contacts with the poles of the direct current machine are made through the locknut 8 on the bottom electrode arm and one of the bolts 9 on the bed surface.

Flotation machine works as follows.

When the shaft 3 rotates in the under-impeller space, the mixing and pulp aeration of the air entering the chamber 2 with the help of an impeller occurs

4 mechanical and pneumomechanical type. The current is supplied through electrical contacts: a lock nut 8 on the tongue of the lower electrode 5 and one of the bolts 9 on the surface of the bed 1 to the respectively fixed electrode

5 and a rotating electrode 7. As a result of the electrolysis of the liquid phase of the pulp, 1 FOLLOWING the medium is aerated with puffs of electrolytic gases. At the same time, the dielectric cup 6 isolates the electrode 5 from direct contact with the rest of the machine, leaving an electrolytic key between the electrodes.

As a result of isolating the bottom electrode from the rest of the machine using a dielectric cup, it became possible to apply a current to the rotating top electrode directly through the machine body, which was pre-grounded, which explains the exclusion of the device from the flotation shield of the current shaft to the rotating shaft. shaft u) is suitable for bearings made of non-conductive material.

With the introduction into industrial production of the proposed device in the process of processing i million tons of ore at one processing plant, the economic effect will be at least 50 thousand rubles. in year.

Form, l and inventions

A flotation machine, comprising a chamber, a shaft with an impeller fixed in the frame, and an electrolysis cell, one of the electrodes of which is mounted on the impeller,

that, in order to reduce operating costs, the machine is equipped with a dielectric cup mounted on the bottom of the chamber, inside which is placed the second electrode.

Sources of information taken into account 1ph expertise

1. Author's certificate of the USSR N 66558, cl. B 03 O 1 / O2, 1946.

2. Authors certificate of the USSR N 598647, cl. B 03 D 1/14, 1976 (prototype).

Claims (1)

Claim A flotation machine including a chamber, a shaft with an impeller fixed in the bed and an electrolysis cell, one of the electrodes of which is mounted on the impeller, characterized in that, in order to reduce operating costs, the machine is equipped with a dielectric cup mounted on the bottom of the chamber, inside of which a second <, swarm electrode.