Horizontal-row double-sided power-in aluminum electrolysis cell structure
By setting forward and reverse power-infeed busbars on both sides of the electrolytic cell and adjusting the connection of the busbars around the cell, current can enter the anode busbar from both sides simultaneously, solving the problems of high voltage and high investment cost in traditional electrolytic cell structures, and reducing insulation level and investment cost.
Patent Information
- Application Number
- CN202520582035.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-31
AI Technical Summary
Traditional electrolytic cell structures only support single-sided power input, resulting in high series voltages, high insulation design levels, and large overall investment costs.
The aluminum electrolysis cell adopts a horizontal double-sided power supply structure. By setting forward and reverse power supply column busbars on both sides of the electrolysis cell and adjusting the connection method of the busbar around the cell, the current can enter the anode busbar from both sides at the same time, flow through the anode, electrolyte, aluminum liquid and cathode in sequence, and then flow into the next cell through a shorter path.
While maintaining the same operating current, the series voltage and insulation class were reduced, thus reducing investment costs.
Smart Images
Figure CN223951216U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of horizontal arrangement double-sided power feeding aluminum electrolytic cell structure, belong to aluminum electrolysis technical field. BACKGROUND
[0002] Electrolytic cell is the main equipment of electrolytic aluminum plant, and the bus around the electrolytic cell is an important passage for the direct current when it passes through the electrolytic cell. The traditional electrolytic cell structure only supports single-sided power feeding. Under normal production conditions, the direct current flows out from the rectifier, and then passes through the column bus of the electrolytic cell, anode, electrolyte, aluminum liquid, cathode and bus around the electrolytic cell in turn, and then enters the downstream cell. That is, the current only enters the electrolytic cell from the upstream side of the electrolytic cell on one electrolytic cell. After the current flows out from the cathode of the electrolytic cell, it circulates through the bus around the electrolytic cell and then converges to the column bus on the downstream side of the electrolytic cell, so as to enter the downstream cell. Under this current operation scheme, the series voltage of the electrolytic workshop is high, the insulation design level is high, and the overall investment cost is large. SUMMARY
[0003] The utility model aims at providing a kind of horizontal arrangement double-sided power feeding aluminum electrolytic cell structure. When the horizontal arrangement double-sided power feeding aluminum electrolytic cell is used, the series voltage can be reduced under the condition of ensuring the same operating current as the single-sided power feeding electrolytic cell, so as to reduce the insulation level and investment cost.
[0004] The technical scheme of the utility model is as follows: a kind of horizontal arrangement double-sided power feeding aluminum electrolytic cell structure, which comprises an electrolytic cell body. The inside of the electrolytic cell body is divided into a left electrolytic cell and a right electrolytic cell by an insulating baffle. A plurality of positive power feeding column buses are arranged on one side of the left electrolytic cell, and a plurality of reverse power feeding column buses are arranged on one side of the right electrolytic cell. The positive power feeding column buses and the reverse power feeding column buses are arranged on the two sides of the electrolytic cell body respectively. The positive power feeding column buses are connected with the anode bus A in the left electrolytic cell, and the reverse power feeding column buses are connected with the anode bus B in the right electrolytic cell. A bus around the electrolytic cell is further arranged around the electrolytic cell body. The bus around the electrolytic cell of the left electrolytic cell is connected with the positive power feeding column bus of the next electrolytic cell, and the bus around the electrolytic cell of the right electrolytic cell is connected with the reverse power feeding column bus of the previous electrolytic cell.
[0005] In the aforementioned horizontal arrangement double-sided power feeding aluminum electrolytic cell structure, the bus around the electrolytic cell of the left electrolytic cell is divided into a plurality of units with the same number as the positive power feeding column buses. One end of each unit is connected with a plurality of cathode currents of the left electrolytic cell, and the other end is connected with a positive power feeding column bus of the next electrolytic cell. The bus around the electrolytic cell of the right electrolytic cell is divided into a plurality of units with the same number as the reverse power feeding column buses. One end of each unit is connected with a plurality of cathode currents of the right electrolytic cell, and the other end is connected with a reverse power feeding column bus of the previous electrolytic cell.
[0006] In the structure of the aforementioned horizontal-row double-sided power feeding aluminum electrolytic cell, the number of the forward power feeding vertical column bus bars: the number of the reverse power feeding vertical column bus bars = the number of the forward current I 1: the number of the reverse current I 2.
[0007] In the structure of the aforementioned horizontal-row double-sided power feeding aluminum electrolytic cell, the number of the cathode current of the left electrolytic cell: the number of the cathode current of the right electrolytic cell = the number of the forward current I 1: the number of the reverse current I 2.
[0008] In the structure of the aforementioned horizontal-row double-sided power feeding aluminum electrolytic cell, the cell peripheral bus bar of the left electrolytic cell is connected with the forward power feeding vertical column bus bar of the next electrolytic cell, and the cell peripheral bus bar of the right electrolytic cell is connected with the reverse power feeding vertical column bus bar of the previous electrolytic cell.
[0009] In the structure of the aforementioned horizontal-row double-sided power feeding aluminum electrolytic cell, the electrolytic cell body is divided into the left electrolytic cell and the right electrolytic cell by the insulating baffle.
[0010] Compared with the prior art, the electrolytic cell of the utility model supports double-sided power feeding, that is, the current can enter the anode bus bar from both sides of the electrolytic cell, then flow through the anode, the electrolyte, the aluminum liquid and the cathode in turn, and then flow out from both sides of the cathode of the electrolytic cell, and then enter the vertical column bus bar of the electrolytic cell on both sides through a short path, so as to flow into the next electrolytic cell. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a structural schematic view of the utility model;
[0012] Figure 2 It is a configuration diagram of the cell peripheral bus bar of the electrolytic cell.
[0013] Mark: 1-forward power feeding vertical column bus bar, 2-reverse power feeding vertical column bus bar, 3-anode bus bar A, 4-anode bus bar B, 5-insulating baffle, 6-electrolytic cell body, 7-cell peripheral bus bar. DETAILED DESCRIPTION
[0014] The utility model will be further described below in combination with the drawings and examples, but it is not as the basis for limiting the utility model.
[0015] The utility model discloses an embodiment: the utility model discloses a technical scheme: a kind of horizontal double-sided power feeding aluminum electrolytic cell structure, including electrolytic cell body 6, the electrolytic cell body 6 is divided into left electrolytic cell and right electrolytic cell, the left electrolytic cell side is provided with multiple positive power feeding vertical column bus 1, the right electrolytic cell side is provided with multiple reverse power feeding vertical column bus 2, positive power feeding vertical column bus 1 and reverse power feeding vertical column bus 2 are respectively arranged in the both sides of electrolytic cell body 6, positive power feeding vertical column bus 1 is connected with the anode busbar A3 in left electrolytic cell, reverse power feeding vertical column bus 2 is connected with the anode busbar B4 in right electrolytic cell, electrolytic cell body 6 periphery is also provided with cell peripheral bus 7, wherein the cell peripheral bus 7 of left electrolytic cell is connected with the positive power feeding vertical column bus 1 of other table electrolytic cell, the cell peripheral bus 7 of right electrolytic cell is connected with the reverse power feeding vertical column bus 2 of other table electrolytic cell.
[0016] The utility model discloses a kind of horizontal double-sided power feeding aluminum electrolytic cell, and current is simultaneously entered into anode busbar by the power feeding vertical column bus of electrolytic cell both sides, subsequently flows through anode, electrolyte, aluminium liquid, cathode in turn, the current that flows out from electrolytic cell cathode both sides, after shorter path, flows into the vertical column bus of electrolytic cell both sides nearby, to enter into next electrolytic cell.
[0017] The cell peripheral bus 7 of left electrolytic cell is divided into multiple units same as the number of positive power feeding vertical column bus 1, and one end of each unit is connected to the multiple groups of cathode current of left electrolytic cell, and the other end is connected to one positive power feeding vertical column bus 1 of next electrolytic cell;The cell peripheral bus 7 of right electrolytic cell is divided into multiple units same as the number of reverse power feeding vertical column bus 2, and one end of each unit is connected to the multiple groups of cathode current of right electrolytic cell, and the other end is connected to one reverse power feeding vertical column bus 2 of previous electrolytic cell.
[0018] When the current intensity of electrolytic cell both sides is not equal (i.e. I 1≠reverse current I 2) , at this time, according to the current intensity ratio of both sides, the number of power feeding vertical column bus of electrolytic cell both sides, the number of cathode current group and the position of insulating baffle 5 in electrolytic cell are redistributed. The specific setting mode is as follows: positive power feeding vertical column bus 1 number: reverse power feeding vertical column bus 2 number=positive current I 1: reverse current I 2=the number of cathode current of left electrolytic cell: the number of cathode current of right electrolytic cell.
[0019] The cell peripheral bus of left electrolytic cell is connected with the positive power feeding vertical column bus 1 of next electrolytic cell nearby, and the cell peripheral bus of right electrolytic cell is connected with the reverse power feeding vertical column bus 2 of previous electrolytic cell nearby. Figure 1As shown, the cell peripheral bus 7 of the left side cell of the No. 2 electrolytic cell is connected with the positive direction power feeding vertical column bus 1 of the No. 3 electrolytic cell in proximity, and the cell peripheral bus 7 of the right side cell of the No. 2 electrolytic cell is connected with the negative direction power feeding vertical column bus 2 of the No. 1 electrolytic cell in proximity. The connection form makes the bus path the shortest path, without long distance detouring.
[0020] The electrolytic cell body 6 is internally divided into left side and right side cells by the insulation baffle 5, so that the circuit systems and bus systems of the left and right sides of the electrolytic cell body 6 are independent of each other.
[0021] The utility model takes one special embodiment as an example, before and after adopting the bus configuration scheme, the total current intensity entering the electrolytic cell is unchanged, and the total resistance of the electrolytic cell is unchanged. Assuming that the electrolytic cell is six-point power feeding, there are 48 groups of cathodes, the current intensity entering from the two sides of the electrolytic cell is equal, that is, I 总 = I 1+ I 2, and I 1= I 2. In the bus configuration scheme, there are 3 power feeding vertical column buses on the two sides of each electrolytic cell, and the circuit systems and bus systems of the left and right sides of the electrolytic cell are independent of each other.
[0022] The special embodiment will be described below, so as to facilitate people to understand the technical scheme of the present application, but it does not mean that the technical scheme of the present application only has the structure shown in Figure 1 and Figure 2 . Figure 1 Figure 2
[0023] Figure 1 In the figure, for the electrolytic cell, the No. I, II and III are positive direction power feeding vertical column buses 1 in the positive direction current I 1 direction, the No. IV, V and VI are negative direction power feeding vertical column buses 2 in the negative direction current I 2 direction, the No. I, II and III positive direction power feeding vertical column buses 1 are connected with the anode large bus A3 corresponding to the positive direction current I 1, the No. IV, V and VI negative direction power feeding vertical column buses 2 are connected with the anode large bus B4 corresponding to the negative direction current I 2, and the anode large bus A3 and the anode large bus B4 are not connected in the middle. The insulation baffle 5 divides the electrolytic cell into left and right parts, so that the circuit systems and bus systems of the left and right sides of the electrolytic cell are independent of each other.
[0024] Figure 2 is the configuration diagram of the cell peripheral bus 7 of the electrolytic cell in Figure 1 , A-F are different cell peripheral bus 7 route schematics. The No. I, II and III respectively correspond to Figure 1 I, II, III positive forward power column busbar 1, IV, V, VI number respectively corresponding Figure 1 IV, V, VI number of reverse power column busbar 2; A1-A24 and B1-B24 represent the cathode current group in the electrolytic cell, the cathode current group is separated into the cathode current group of the left electrolytic cell and the cathode current group of the right electrolytic cell by the insulating baffle 5 in the middle of the electrolytic cell.
[0025] In this embodiment, as shown in the accompanying Figure 1 : the strength of the forward current I 1 and the reverse current I 2 is equal, and the direction is opposite, wherein the forward current I 1 passes through the I, II, III positive forward power column busbar 1 into the anode busbar A3, and the reverse current I 2 passes through the IV, V, VI reverse power column busbar 2 into the anode busbar B4. At this time, the current I 1 from the anode busbar A3 in turn through the electrolytic cell left anode, electrolyte, aluminum liquid, to the electrolytic cell left cathode; the current I 2 from the anode busbar B4 in turn through the electrolytic cell right anode, electrolyte, aluminum liquid, to the electrolytic cell right cathode.
[0026] As shown in the accompanying Figure 2 : the current I 1 and I 2 into the cathode, the left and right sides are each divided into 24 groups of cathode current, which are A1-A12, B1-B12, and A13-A24, B13-B24. Among them, A1-A8 passes through the A cell circumferential busbar 7 into the I positive forward power column busbar 1 of the next electrolytic cell, B1-B8 passes through the B cell circumferential busbar 7 into the II positive forward power column busbar 1 of the next electrolytic cell, A9-A12, B9-B12 pass through the C cell circumferential busbar 7 into the III positive forward power column busbar 1 of the next electrolytic cell; A13-A16, B13-B16 pass through the D cell circumferential busbar 7 into the IV reverse power column busbar 2 of the previous electrolytic cell, A17-A24 pass through the E cell circumferential busbar 7 into the V reverse power column busbar 2, B17-B24 pass through the F cell circumferential busbar 7 into the VI reverse power column busbar 2.
[0027] The utility model discloses a new bus configuration mode and structure for the electrolytic cell when the double-sided power feeding aluminum electrolytic cell in horizontal row is adopted, including the configuration of the power feeding vertical column bus and the cell peripheral bus 7. Although the utility model embodiment only discusses the case that the current intensity of the two sides power feeding is equal, but the current intensity ratio of the two sides power feeding can be changed according to the actual demand. Therefore, any modification, equivalent replacement, improvement and the like within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A structure of a side-by-side twin-submerged-arc aluminum reduction cell, comprising a cell body (6), characterized in that: The electrolytic tank body (6) is divided into left and right electrolytic tanks by an insulating baffle (5) inside, a plurality of positive-direction power feeding vertical column busbars (1) are arranged on one side of the left electrolytic tank, a plurality of reverse-direction power feeding vertical column busbars (2) are arranged on one side of the right electrolytic tank, the positive-direction power feeding vertical column busbars (1) and the reverse-direction power feeding vertical column busbars (2) are arranged on the two sides of the electrolytic tank body (6) respectively, the positive-direction power feeding vertical column busbars (1) are connected with an anode large busbar A (3) in the left electrolytic tank, the reverse-direction power feeding vertical column busbars (2) are connected with an anode large busbar B (4) in the right electrolytic tank, and a tank peripheral busbar (7) is further arranged on the periphery of the electrolytic tank body (6), the tank peripheral busbar (7) of the left electrolytic tank is connected with the positive-direction power feeding vertical column busbar (1) of the next electrolytic tank in proximity, and the tank peripheral busbar (7) of the right electrolytic tank is connected with the reverse-direction power feeding vertical column busbar (2) of the previous electrolytic tank in proximity.
2. A structure of a horizontal twin-submerged-arc aluminum reduction cell according to claim 1, characterized in that: The tank peripheral busbar (7) of the left electrolytic tank is divided into a plurality of units same in number with the positive-direction power feeding vertical column busbars (1), one end of each unit is connected with a plurality of groups of cathode currents of the left electrolytic tank, and the other end is connected with one positive-direction power feeding vertical column busbar (1) of the next electrolytic tank; and the tank peripheral busbar (7) of the right electrolytic tank is divided into a plurality of units same in number with the reverse-direction power feeding vertical column busbars (2), one end of each unit is connected with a plurality of groups of cathode currents of the right electrolytic tank, and the other end is connected with one reverse-direction power feeding vertical column busbar (2) of the previous electrolytic tank.
3. A structure of horizontal twin-sided current feeding aluminum reduction cells according to claim 1, characterized in that: The number of forward power vertical column busbars (1) : the number of reverse power vertical column busbars (2) = forward current I 1: reverse current I 2.
4. A structure of a horizontal twin-submerged-arc aluminum reduction cell according to claim 2, characterized in that: The left electrolytic cell cathode current quantity: right electrolytic cell cathode current quantity = forward current I 1: reverse current I 2.