RU1813124C - Bus arrangement of aluminum electrolyzers - Google Patents

Abstract

Usage: in a busbar device for an aluminum casting line comprising: reduction cells with cells transverse to each row, which, in particular, is designed for cells with electric current supplied through the bottom. Essence: bus VV: - /:: -: ::, -. . : ...:. . of the series transversely, contains two rows of cathode rods passing through the bottom of the cathode casing, connected to two precast cathode buses, directed along the longitudinal sides of the card body of the electrolyzer, while the cathode busbars are located under the bottom of the cathode casing, and they are connected among themselves by at least six shea. nami, of which at least four are located under the den. and two, having a double section, outside the cathode casing and parallel to its transverse sides. Of the four tires located “one bottom of the cathode casing, two buses are located near its sides, and the other two are in the middle of the distance between the transverse sides and the transverse axis of the cathode casing of the electrolyzer, 2 zp f-ly, 2 ill.

Description

/. The invention relates to a bus device for an aluminum casting line comprising rows of reduction cells with cells transversely in each row, which, in particular, is intended for cells with an electric current supply through the bottom.

The aim of the invention is to simplify the design and reduce bus costs. . . . ...;:

Fig. 1 shows an exemplary embodiment of a reduction cell (vertical section) with an output of electric current through the bottom; Fig. 2 is a bus arrangement for this cell in a plan view.

: During electrolysis, an electric current is supplied from the anode A. the electrolytic bath and molten metal are cut and then removed through the carbon cathode C to two cathode steel rods (two cathode rods for each

 Corner block, 23 blocks shown in total).

l Typically, steel tires protrude from the sides of the cells; but in this example, an electrical conductor R made of

; copper or steel, are welded to the middle of each cathode steel. Busbars I, Electric current is supplied through conductors through the bottom of the cell and then through flexible conductors 1 to the busbars W, Ba of the electric current collector.

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The number of cathode coal blocks arranged in parallel in the cells depends on the width of the coal blocks, but in the cells of large electrolyzers this number can be 26, as in this example. One of the tires of the EN collector is located below (directly below the long side of the cathode casing) and protrudes outward, approximately 0.5 m from steel.nr-. th casing,.: ..-. ..; . .

Although the OH, Br collector tires in the above example are located directly below the long sides of the cells, this invention is not limited to this example .: Theoretical calculations have shown that the collector buses can be located somewhat outside the cathode housings: preferably at a distance of 0.5 m from the steel casing. ;:.:.:. : -. ;;

A portion of the electric current collected in the collector bus B.1; supply to the cell: 2 via two buses KI and Ke, which are sawn on each short hundred.rone. : cell, at $ 0, but on the same: e: at the very height or: a little lower than the level of the ra, egogl, demanded: .me -... talla - v. cell (see, Fig.%: - The rest; electric current: supply t, to -tstskne-Bz.col-; lecturer on four busbars.a.m Ka, .Kz, ShchShK.5 П ° D by a cell and further to .Ilegue

: LIFTING IN IN $ 1, S, S3, $ 4 AND §5 ..:; . .., ..:.

 Distribution of Electricity. six electric busbars: current from. collector B-1 tires, agree 6: iz - ::: shaving into; osn8nrm; Depends on the rider .. Ki-ke tire cross sections. -Ec and red;; the cells are located far from each other, for example, at a distance of a hundred nm and a m or more; then;

. cross sections of tire lengths KI and Kb dol g-1; double the size of the transverse: the speech Kz, K4 and Kv. These are both; specials in the tires Kt and Ke electric t bk, which is twice the strength of the black;

 the current in the Ka-Ks buses, and the distribution of the electric current creates a very:: favorable magnetic: field. . :: B: as a result of the use of the name; distribution models

electric current in all tires of the busbar device and the magnetic field in the metal reserve in the cells, it is possible to select precisely the cross sections that provide the most favorable magnetic field, ... : - :::. Using the described method, the bus device provides low maximum absolute values for; vertical magnetic field, which is lower than the geuss on the entire anode. At the same time, the cells completely compensate for the magnetic effect of the dominant neighboring series, the number of used shiv decreases ;; .-. ; .:: -; - - .-;

. Formulas a and z gain:

1, Oshinovk3: al4omishevy zlektroliaerbv located in series transverse

containing two r de cathode rods,

going through the bottom of the cathode, kbkyxa,

yrs about united - to two national teams: cathode ny-m

tires directed along the longitudinal sides of the cathode; electrolyzer casing ,, about td: and h and a u Shch- & with. : in order that, in order to simplify: under the bottom, a-two, having a double cross-section,,.: h; and outside the cathode casing-a and Shr aL11e b-i1e vgs b 11ёrёch1m borotam,; 2. rshy ovka according to o.1, from the list of which - with. :.; the fact that of the four tires is located. nhh on the bottom of the cathode casing, two wide-htr rails in the vicinity of its transverse

SopTOS /: -: ;;; th ::. ;; Y::; -.- .....,

: - .Z. Oshinoёka tto p.1, about aphids; i the fact that of the four tires located AND bd bottom of the cathode casing, two

tires are located near its transverse

sides, and the other two - in the middle of the gap between the transverse sides and the transverse axis). cathode casing of the electrolyzer. : v:: ..: ..

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