Apparatus and method for reducing black voltage in an aluminum electrolysis process

Abstract

The application discloses a device and method for reducing black voltage in an aluminum electrolysis process, and relates to the technical field of electrolysis equipment.The device comprises a bus, a joint assembly, a plug assembly, a height adjusting assembly and a length adjusting assembly, the bus is provided with the joint assembly at both ends, the bus is connected with the plug assembly through the joint assembly, the bus is provided with the height adjusting assembly, and the height adjusting assembly is provided with the length adjusting assembly at both ends.The bus is erected through a soft connection mode at both ends of an electrolytic cell by using the plug assembly, the joint assembly, the length adjusting assembly and the height adjusting assembly, the aluminum electrolysis black voltage is effectively reduced, the reactive power consumption of the black voltage is reduced, the current efficiency is increased, the power consumption per ton of aluminum is reduced, the production cost is reduced, the power grid is protected, the long-term development of production organization is more favorable, and good economic benefits are achieved.

Description

Technical Field

[0001] This invention belongs to the field of electrolysis equipment technology, and in particular relates to a device and method for reducing black voltage in the aluminum electrolysis process. Background Technology

[0002] With the development of the times and technology, electrolysis is one of the most common technologies in the metal smelting industry. Electrolysis is not limited to metal smelting; it is also widely used in other industrial fields. One of the most important pieces of equipment in aluminum electrolysis is the electrolytic cell. The electrolytic cell carries the electrolyte and the substance being electrolyzed, allowing for better electrolysis when the electrodes on both sides are connected to the electrolyte. It also protects the electrolytic environment and prevents human intervention. However, electrolytic cells used for aluminum electrolysis consume a great deal of electrical energy during normal operation. With a full current of 400KA, most cells have a black voltage of around 270MV, while some higher cells have a black voltage of around 310MV. Therefore, existing electrolytic cells have the following shortcomings.

[0003] Traditional methods for reducing black voltage in aluminum electrolysis mainly involve tapping the short-circuit joint, dust removal at the short-circuit joint, short-circuiting the busbar around the slot, and using high-pressure air to cool the high-temperature areas of the busbar. In particular, the traditional methods of tapping the short-circuit joint and tightening the screws are especially prone to damaging the short-circuit joint busbar, creating additional workload for subsequent baking and installation of the uninterruptible switch (because uneven pressure interfaces require grinding). However, this still results in a large workload with only a small reduction in black voltage. When using short-circuit joint dust removal and high-pressure air cooling of the busbar... The method of reducing black voltage by means of wire requires the installation of a high-voltage air-cooling system. Not only does this air-cooling system consume a lot of electricity during normal operation, but it is also expensive. When the busbars of the electrolytic cell are short-circuited, the busbars are installed at both ends of the electrolytic cell, and there are overhead cranes installed on the electrolytic cell. As a result, the overhead cranes will come into contact with the busbars during normal production operations. In addition, there are multiple busbars, not a single one. The spacing between the multiple busbars is uncontrollable, which may cause some electrical interference or even reduce or destroy the function of the busbars. Summary of the Invention

[0004] The purpose of this invention is to provide a device for reducing black voltage in the aluminum electrolysis process. By using plug components, connector components, and length and height adjustment components to construct busbars at both ends of the electrolytic cell through flexible connections, the black voltage of aluminum electrolysis is effectively reduced, the reactive power loss of black voltage is reduced, the current efficiency is increased, the power consumption per ton of aluminum is reduced, and the production cost is reduced. While protecting the power grid, it is also more conducive to the long-term development of production organization, achieving good economic benefits and solving the problems of traditional devices and methods for reducing black voltage in the aluminum electrolysis process.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] The present invention is a device for reducing black voltage in the aluminum electrolysis process, comprising a busbar, a connector assembly, a plug assembly, a height adjustment assembly, and a length adjustment assembly. The two ends of the busbar are equipped with connector assemblies, and the busbar is connected to the plug assembly through the connector assemblies. The height adjustment assembly is assembled between the busbars, and the two ends of the height adjustment assembly are equipped with length adjustment assemblies.

[0007] The connector assembly includes a first sleeve plate, a first insert plate, a limiting post, and a mating post. The first sleeve plate is bonded to the first insert plate, and the limiting post and the mating post are installed in the first insert plate.

[0008] The plug assembly includes a second sleeve plate, a second plug plate, a plug post, and a connector post. The second sleeve plate is bonded to the second plug plate, and the plug post and connector post are installed in the second plug plate.

[0009] The height adjustment assembly includes a frame, side fixing plates, a bottom ring, a height telescopic rod, and a top ring. The frame has a frame groove inside. The side fixing plates are glued to the two side walls of the frame. The bottom side wall of the frame is connected to the height telescopic rod through the top ring, and the other end of the height telescopic rod is fitted with the bottom ring.

[0010] The length adjustment assembly includes a telescopic rod, a rod fixing seat, and a rod connector. The telescopic rod has a rod fixing seat installed at its tail end and a rod connector installed at its head end.

[0011] Furthermore, a first terminal is provided on one side of the busbar, and a second terminal is provided on the other side of the busbar. Both the first and second terminals are equipped with plug assemblies.

[0012] Furthermore, the end of the first terminal is connected to the connector assembly on one end of the busbar via a plug assembly, and the end of the second terminal is also connected to the connector assembly on the other end of the busbar via a plug assembly.

[0013] Furthermore, the first sleeve plate in the connector assembly is snapped onto the outer sheath of the busbar by a snap fastener, the first insert plate in the connector assembly is sleeved with the second insert plate in the plug assembly, the limiting post in the connector assembly is sleeved with the plug post in the plug assembly, and the mating post in the connector assembly is connected with the connector post in the plug assembly.

[0014] Furthermore, the sleeve in the height adjustment assembly is configured to fit with the outer wall of the busbar through a frame groove, and the length of the upper fixing plate on both ends of the sleeve is the same as the length and width of the side wall of the sleeve.

[0015] Furthermore, each of the sleeve frames is provided with a height telescopic rod, and the two end side walls of the height telescopic rod are connected to the outer walls of the upper and lower sleeve frames respectively through a bottom ring and a top ring.

[0016] Furthermore, the two side walls of the side fixing plate on the outer wall of the sleeve are respectively connected to the rod fixing seat or the rod connector by bolts, and the side fixing plate is connected to the end side wall of the length telescopic rod by the rod fixing seat or the rod connector.

[0017] This invention also provides a device for reducing black voltage in the aluminum electrolysis process and a method for reducing black voltage, the method specifically including:

[0018] S1: Connect the first terminal of the crossbeam on side b of the stop tank to the busbar via a plug assembly to the connector assembly on the busbar of the cross tank. Connect the connector assembly at the other end of the busbar to the second terminal of the column busbar of the next electrolytic cell via a plug assembly. This is equivalent to adding one or more conductors (i.e., aluminum crossover busbars) in parallel on the basis of the original winding busbar. Considering the position of the column busbar, a maximum of six crossover busbars can be installed. The lower the total resistance of the busbar, the more crossover busbars can be installed.

[0019] S2: When the busbar is connected, the current transmission has a certain attraction, which can achieve a stable connection at the connector end and avoid the phenomenon of natural detachment between the connector assembly and the plug assembly.

[0020] S3: The height telescopic rod in the height adjustment component can push the upper and lower end frames to shorten or increase the distance, thereby adjusting the spacing between the busbars according to actual needs;

[0021] S4: The length telescopic rod in the length adjustment assembly can change the distance between the rod fixing seat and the rod connector at both ends. When the distance changes, since the busbar erection length is fixed, the tension of the erected busbar can be adjusted by the length telescopic rod to better match the movement of the overhead crane and avoid the busbar interfering with the operation of the overhead crane.

[0022] The present invention has the following beneficial effects:

[0023] 1. This invention, by setting up connector assemblies and plug assemblies, allows for stable connection between the two ends of the busbar during use. Connector assemblies are installed at both ends of the busbar, while plug assemblies are installed at the terminals used for connection with the busbar. The first and second plug plates in the connector and plug assemblies provide a stable connection. This solves the problem of traditional methods of hammering and tightening short-circuit joints, which easily damages the short-interface busbar and causes additional workload for subsequent firing and installation of the uninterruptible switch (because the interface of the uninterruptible switch needs to be polished if it is not flat). However, it still faces the harsh reality of large workload and small reduction in black voltage.

[0024] 2. This invention, by setting a length adjustment component, allows for adjustment of the busbar length via the length extension rod within the component. Simultaneously, when the busbar length changes, a certain amount of shaking occurs, thus preventing long-term dust accumulation. It also works in conjunction with the height adjustment component to adjust the busbar's height and tightness. This solves the problem of reducing black voltage using short-circuit dust removal and high-pressure air cooling of the busbar, which requires a high-pressure air cooling system. This system not only consumes a significant amount of electricity during normal operation but is also expensive.

[0025] 3. This invention, by setting up a height adjustment component, allows for adjustment of the spacing between each busbar during use. Simultaneously, the length adjustment component can be used to adjust the tightness of the busbars, thus preventing the spacing between busbars from being too long or too short. This solves the problem that when the busbars are short-circuited, the busbars are erected at both ends of the electrolytic cell, and a crane is also erected on the electrolytic cell. Consequently, during normal production operations, the crane may come into contact with the busbars. Furthermore, since there are multiple busbars (not a single one), the uncontrollable spacing between them can cause minor electrical interference or, in severe cases, reduce or eliminate the functionality of the busbars. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of a device for reducing black voltage in the aluminum electrolysis process according to the present invention;

[0028] Figure 2 This is a schematic diagram of the busbar structure in this invention;

[0029] Figure 3 This is a schematic diagram of the connector assembly and plug assembly in this invention. Figure 1 ;

[0030] Figure 4 This is a schematic diagram of the connector assembly and plug assembly in this invention. Figure 2 ;

[0031] Figure 5 This is a schematic diagram of the spacing adjustment component structure in this invention;

[0032] Figure 6 This is a schematic diagram of the length adjustment component structure in this invention;

[0033] The attached diagram lists the components represented by each number as follows:

[0034] 1. Busbar; 101. First terminal; 102. Second terminal; 2. Connector assembly; 201. First sleeve plate; 202. First insertion plate; 203. Limiting post; 204. Mating post; 3. Plug assembly; 301. Second sleeve plate; 302. Second insertion plate; 303. Plug post; 304. Connector post; 4. Height adjustment assembly; 401. Sleeve frame; 402. Frame groove; 403. Side fixing plate; 404. Bottom ring; 405. Height telescopic rod; 406. Top ring; 5. Length adjustment assembly; 501. Length telescopic rod; 502. Rod fixing seat; 503. Rod connector. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0036] Please see Figure 1-6 As shown, the present invention is a device for reducing black voltage in the aluminum electrolysis process, including a busbar 1, a connector assembly 2, a plug assembly 3, a height adjustment assembly 4, and a length adjustment assembly 5. The two ends of the busbar 1 are equipped with the connector assembly 2, and the busbar 1 is connected to the plug assembly 3 through the connector assembly 2. The height adjustment assembly 4 is installed between the busbars 1, and the two ends of the height adjustment assembly 4 are equipped with the length adjustment assembly 5.

[0037] The connector assembly 2 includes a first sleeve plate 201, a first insert plate 202, a limiting post 203, and a mating post 204. The first sleeve plate 201 is bonded to the first insert plate 202, and the limiting post 203 and the mating post 204 are installed in the first insert plate 202.

[0038] The plug assembly 3 includes a second sleeve plate 301, a second plug plate 302, a plug post 303 and a connector post 304. The second sleeve plate 301 is bonded to the second plug plate 302, and the plug post 303 and the connector post 304 are installed in the second plug plate 302.

[0039] The height adjustment assembly 4 includes a frame 401, a side fixing plate 403, a bottom ring 404, a height telescopic rod 405, and a top ring 406. The frame 401 has a frame groove 402 inside. The side fixing plates 403 are glued to the two side walls of the frame 401. The bottom side wall of the frame 401 is connected to the height telescopic rod 405 through the top ring 406, and the other end of the height telescopic rod 405 is fitted with the bottom ring 404.

[0040] The length adjustment assembly 5 includes a length telescopic rod 501, a rod fixing seat 502, and a rod connector 503. The rod fixing seat 502 is installed at the tail of the length telescopic rod 501, and the rod connector 503 is installed at the head of the length telescopic rod 501.

[0041] Please see Figure 1-2 As shown, a first terminal 101 is provided on one side of the busbar 1, and a second terminal 102 is provided on the other side of the busbar 1. Both the first terminal 101 and the second terminal 102 are equipped with plug assemblies 3. The end of the first terminal 101 is connected to the connector assembly 2 on one end of the busbar 1 through the plug assembly 3, and the end of the second terminal 102 is also connected to the connector assembly 2 on the other end of the busbar 1 through the plug assembly 3.

[0042] Please see Figure 3-4 As shown, the first sleeve plate 201 in the connector assembly 2 is snapped onto the outer sheath of the busbar 1 by a snap fastener. The first insert plate 202 in the connector assembly 2 is sleeved with the second insert plate 302 in the plug assembly 3. The limiting post 203 in the connector assembly 2 is sleeved with the plug post 303 in the plug assembly 3. The mating post 204 in the connector assembly 2 is connected with the connector post 304 in the plug assembly 3.

[0043] Please see Figure 1 , 5 As shown, the sleeve frame 401 in the height adjustment assembly 4 is fitted with the outer wall of the busbar 1 through the frame groove 402. The length of the upper fixing plate 403 on both sides of the sleeve frame 401 is the same as the length and width of the side wall of the sleeve frame 401. A height telescopic rod 405 is provided between the sleeve frames 401. The two sides of the height telescopic rod 405 are connected to the outer wall of the upper and lower sleeve frames 401 through the bottom ring 404 and the top ring 406, respectively.

[0044] Please see Figure 1 , 6As shown, the two side walls of the side fixing plate 403 on the outer wall of the sleeve frame 401 are respectively connected to the rod fixing seat 502 or the rod connector 503 by bolts. The side fixing plate 403 is connected to the end side wall of the length telescopic rod 501 through the rod fixing seat 502 or the rod connector 503. 1. Busbar; 101. First terminal; 102. Second terminal; 2. Connector assembly; 201. First sleeve plate; 202. First insertion plate; 203. Limiting post; 204. Mating post; 3. Plug assembly; 301. Second sleeve plate; 302. Second insertion plate; 303. Plug post; 304. Connector post; 4. Height adjustment assembly; 401. Sleeve frame; 402. Frame groove; 403. Side fixing plate; 404. Bottom ring; 405. Height telescopic rod; 406. Top ring; 5. Length adjustment assembly; 501. Length telescopic rod; 502. Rod fixing seat; 503. Rod connector.

[0045] This invention also provides a device for reducing black voltage in the aluminum electrolysis process and a method for reducing black voltage, the method specifically including:

[0046] S1: The first terminal 101 of the crossbeam on side b of the stop tank is connected to the connector assembly 2 on the cross-tank busbar 1 through the plug assembly 3, and the connector assembly 2 at the other end of the busbar 1 is connected to the second terminal 102 on the column busbar 1 of the next electrolytic cell through the plug assembly 3. This is equivalent to adding one or more conductors, i.e., aluminum cross-connecting busbar 1, on the basis of the original winding busbar 1. Considering the position of the column busbar 1, a maximum of six cross-connecting busbars 1 can be installed. The lower the total resistance of the busbar 1, the more cross-connecting busbars 1 can be installed.

[0047] S2: When busbar 1 is connected, the current transmission has a certain attraction, which can achieve a stable connection at the connector end and prevent the connector assembly 2 and plug assembly 3 from falling off naturally.

[0048] S3: The height telescopic rod 405 in the height adjustment component 4 can push the sleeves 401 at its upper and lower ends to achieve the effect of shortening or increasing the distance, thereby adjusting the spacing between the busbars 1 according to actual needs;

[0049] S4: The length telescopic rod 501 in the length adjustment component 5 can push the distance between the rod fixing seat 502 and the rod connecting head 503 at both ends to change. When the distance changes, since the length of the busbar 1 is fixed, the tension of the busbar 1 after installation can be adjusted by the length telescopic rod 501 so that it can better match the movement of the overhead crane and avoid the busbar 1 interfering with the operation of the overhead crane.

[0050] The above are merely preferred embodiments of the present invention and do not limit the present invention. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present invention.

Claims

1. A device for reducing black voltage in an aluminum electrolysis process, comprising a busbar (1), a connector assembly (2), a plug assembly (3), a height adjustment assembly (4), and a length adjustment assembly (5), characterized in that: The busbar (1) is equipped with connector assemblies (2) at both ends. The busbar (1) is connected to the plug assembly (3) through the connector assembly (2). The busbar (1) is equipped with a height adjustment assembly (4). The height adjustment assembly (4) is equipped with a length adjustment assembly (5) at both ends. The connector assembly (2) includes a first sleeve plate (201), a first insert plate (202), a limiting post (203), and a mating post (204). The first sleeve plate (201) is bonded to the first insert plate (202), and the limiting post (203) and the mating post (204) are installed in the first insert plate (202). The plug assembly (3) includes a second sleeve plate (301), a second plug plate (302), a plug post (303) and a connector post (304). The second sleeve plate (301) is bonded to the second plug plate (302), and the plug post (303) and connector post (304) are installed in the second plug plate (302). The height adjustment assembly (4) includes a frame (401), a side fixing plate (403), a bottom ring (404), a height telescopic rod (405), and a top ring (406). The frame (401) has a frame groove (402) inside. The side fixing plates (403) are glued to the two side walls of the frame (401). The bottom side wall of the frame (401) is connected to the height telescopic rod (405) through the top ring (406), and the other end of the height telescopic rod (405) is fitted with the bottom ring (404). The length adjustment assembly (5) includes a length telescopic rod (501), a rod fixing seat (502) and a rod connector (503). The length telescopic rod (501) is equipped with a rod fixing seat (502) at its tail end and a rod connector (503) at its head end. The frame (401) in the height adjustment component (4) is fitted with the outer wall of the busbar (1) through the frame groove (402). The length of the upper fixing plate (403) on both sides of the frame (401) is the same as the length and width of the side wall of the frame (401).

2. The device for reducing black voltage in the aluminum electrolysis process as described in claim 1, characterized in that, The busbar (1) has a first terminal (101) on one side and a second terminal (102) on the other side. Both the first terminal (101) and the second terminal (102) are equipped with plug assemblies (3).

3. The device for reducing black voltage in the aluminum electrolysis process as described in claim 2, characterized in that, The end of the first terminal (101) is connected to the connector assembly (2) on one end of the bus (1) via the plug assembly (3), and the end of the second terminal (102) is also connected to the connector assembly (2) on the other end of the bus (1) via the plug assembly (3).

4. The device for reducing black voltage in the aluminum electrolysis process as described in claim 3, characterized in that, The first sleeve plate (201) in the connector assembly (2) is snapped onto the outer sheath of the busbar (1) by a snap fastener. The first insert plate (202) in the connector assembly (2) is sleeved with the second insert plate (302) in the plug assembly (3). The limiting post (203) in the connector assembly (2) is sleeved with the plug post (303) in the plug assembly (3). The mating post (204) in the connector assembly (2) is connected with the connector post (304) in the plug assembly (3).

5. The device for reducing black voltage in the aluminum electrolysis process as described in claim 1, characterized in that, Each of the sleeve frames (401) is provided with a height telescopic rod (405), and the two end side walls of the height telescopic rod (405) are connected to the outer walls of the upper and lower sleeve frames (401) respectively through the bottom ring (404) and the top ring (406).

6. The apparatus for reducing black voltage in the aluminum electrolysis process as described in claim 1, characterized in that, The two sides of the side fixing plate (403) on the outer wall of the sleeve frame (401) are respectively connected to the rod fixing seat (502) or the rod connector (503) by bolts. The side fixing plate (403) is connected to the end side wall of the length telescopic rod (501) through the rod fixing seat (502) or the rod connector (503).

7. A method for reducing black voltage in an aluminum electrolysis process according to any one of claims 1-6, characterized in that, The specific steps to reduce black voltage include: S1: The first terminal (101) of the crossbeam on the b side of the stop tank is connected to the connector assembly (2) on the cross-tank busbar (1) through the plug assembly (3), and the connector assembly (2) at the other end of the busbar (1) is connected to the second terminal (102) on the column busbar (1) of the next electrolytic cell through the plug assembly (3). This is equivalent to adding one or more conductors, i.e., aluminum cross-connecting busbars (1), on the basis of the original winding busbar (1). Considering the position of the column busbar (1), a maximum of six cross-connecting busbars (1) can be installed. The lower the total resistance of the busbar (1), the more cross-connecting busbars (1) can be installed. S2: When the busbar (1) is connected, the current transmission has a certain adsorption property, which can realize the stable connection of the connector end and avoid the phenomenon of natural detachment between the connector assembly (2) and the plug assembly (3). S3: The height telescopic rod (405) in the height adjustment component (4) can push the sleeve (401) at its upper and lower ends to achieve the effect of shortening or increasing the distance, and then adjust the spacing between the busbars (1) according to actual needs; S4: The length telescopic rod (501) in the length adjustment component (5) can push the distance between the rod fixing seat (502) and the rod connector (503) at both ends to change. When the distance changes, since the length of the busbar (1) is fixed, the tension of the busbar (1) after it is erected can be adjusted by the length telescopic rod (501) so that it can better match the movement of the crane and avoid the busbar (1) from interfering with the operation of the crane.

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