SU379670A1 - ROTOR ELECTROLIZER FOR REFINING - Google Patents

Description

one

This invention relates to the field of electrolytic refining of metals in molten media.

A rotary electrolyzer for refining metals in molten media is known, comprising an anode basket with graphite posts, provided with a hole in the upper part and provided with a device for its rotation, and a mechanism for cutting, collecting and transporting cathode sediment.

A distinctive feature of the electrolytic cell is that the anode basket is internally lined with refractory material, and the mechanism for cutting, collecting and transporting the cathode sludge is made in the form of an auger equipped with incisors.

This difference allows to reduce the dimensions of the electrolyzer, simplify its design and improve the shear and discharge of the cathode sediment.

FIG. 1 shows a cell, longitudinal and transverse sections; in fig. 2 is a section along A-A in FIG. one; in fig. 3 - mechanism for cutting and unloading cathode sludge, cross section; in fig. 4 - the same longitudinal section.

The electrolyzer consists of a sealed anodic basket L at the same time serving it, with the vanity of a reciprocating electrolytic cell and lined inside with refractory material 2.

Between the bricks of the lining there are open graphite columns 3, forming a bottom

for the conductor to the anode material. Inside the anode basket there is a cathode 4, having the shape of a rotating body and fixed on the shaft 5. The shaft is embedded in the basket body; on the shaft cone coming out of the basket, the driven gear 6 and the cathode current lead are strengthened. The driven gear engages with a driving gear 7 provided with a worm gear 8 for rotation. The drive wheel and the worm gear pair are mounted on the shaft of the screw 9, fitted with incisors 10 and located in the round collecting groove // cathode deposit. The collection chute is fixed in the upper part of the anode basket body parallel to the axis

the cathode, and one end of the gutter coming out of the basket is connected by a branch pipe to a receiving bin 2. In the upper part, the basket is made with a hole that is covered with a lined lid / with a built-in branch pipe J4, the lower part of which is made in the form of a confusor-shaped bell, and the upper The end is connected to the hopper.

The case of the anode basket with its flanges is placed on two pairs of rollers 15, which

They are pressed onto shafts 16 equipped with a pair of worm gears 17 for their rotation.

Portable heaters 18 are located under the electrolyzer. In the case of the anode basket, plug-in heaters 19 are located.

The cell operates as follows.

Anode material is loaded into the electrolyzer through the nozzle 14 from the hopper. The cell is preheated by portable heaters 18 and purged with an inert gas.

The electrolyte is then poured into the anode basket / heated, which is heated with heaters 19. After this, the constant current is switched on for electrolysis.

The sediment build-up at the cathode 4 is periodically cut by simultaneous rotation of the cathode and the screw with the cutters 10. The cut sediment is caught in the collecting channel // and transported to the receiving bin 12.

As the anode material is processed and the electrolyte decreases, they are periodically replenished through the pipe 14. The electrolysis process is carried out by periodically rolling (rocking) the anode basket by rotating the rollers 15 from the electric motor, which leads to movement and leveling of the anode material, as well as

destruction of sludge crust on the anode material. The accumulated sludge at the bottom of the anode basket is removed by turning it down with a hole. As a result, the slurry with the electrolyte is partially or completely poured into the bunker through a confusor-like nozzle 14.

The proposed device allows to simplify the design of the electrolyzer and to improve the shear and discharge of the cathode sediment.

Subject invention

Rotary electrolyzer for refining metals in molten media containing an anode basket with graphite posts, made with a hole in the upper part and equipped with a device for its rotation, and a mechanism for cutting, collecting to transport cathode sediment, characterized in that, in order to reduce the dimensions of the electrolyzer , simplifying its design and improving the cut-off and unloading of cathode sediment, the anodic basket is internally lined with refractory material, and the mechanism for cutting, collecting and transporting The cathode deposit is made in the form of a screw, equipped with incisors.

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