Insulating device for short circuit port of aluminum electrolysis cell
Through the improved design of insulating insert plates and the addition of aluminum soft belts and protective sleeves, the problem of improper insulation treatment at the short circuit at the aluminum electrolytic cell is solved, and effective insulation between the column busbar and the short circuit at the end is achieved, ensuring the safe and stable operation of the aluminum electrolytic cell.
Patent Information
- Application Number
- CN202421221284.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The existing aluminum electrolytic cell short-circuit insulation device has improper insulation treatment, which may lead to safety hazards such as leakage and ignition, affecting the stability and safety of the electrolysis process.
The improved transverse insulating insertion plate and longitudinal insulating insertion plate design is adopted, and aluminum soft belts and protective sleeves are added to achieve effective insulation between the column busbar and the short circuit intersection through curved grooves and bolt crimping.
Ensure the safe and stable operation of the aluminum electrolytic cell, prevent current leakage and short circuit, improve insulation effect and mechanical strength of the structure, and simplify maintenance and management.
Smart Images
Figure CN222673333U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of aluminum electrolytic cell safety, in particular to an aluminum electrolytic cell short-circuit insulation device. Background Art
[0002] The aluminum electrolysis series consists of hundreds of electrolytic cells tightly connected in series, and each electrolytic cell is equipped with a short-circuit busbar and a corresponding short-circuit port. These short-circuit ports are opened and closed by precisely designed insulation devices. When the electrolytic cell is operating normally, the insulation device is firmly inserted into the short-circuit port to ensure that the short-circuit busbar is in a non-conductive state, thereby ensuring the stable operation of the electrolysis process. When the electrolytic cell needs to be stopped, the insulation device is quickly and accurately pulled out, allowing the short-circuit busbar to be connected to the busbar of the next electrolytic cell, thereby meeting the need to short-circuit some of the electrolytic cells in the series.
[0003] The short-circuit junction plays a vital role in the aluminum electrolytic cell. It is responsible for switching between the short-circuit busbar and the normal busbar around the slot. Under different working conditions, the short-circuit busbar and the normal busbar around the slot each have different functions, so the insulation treatment at this location is particularly complex. Once the insulation treatment is improper, safety hazards such as leakage and sparking may occur, posing a threat to the safe operation of the electrolytic cell and even the entire electrolytic series. Therefore, the setting of the insulation device at the short-circuit junction of the aluminum electrolytic cell is not only important, but also must be accurate and reliable to ensure the continuity and safety of the electrolysis process. Utility Model Content
[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an insulating device for a short-circuit junction of an aluminum electrolytic cell.
[0005] The technical solution adopted by the utility model is as follows:
[0006] An insulating device for a short-circuit junction of an aluminum electrolytic cell comprises a column busbar, short-circuit junctions are arranged on both sides of the column busbar, and transverse insulating plug plates and longitudinal insulating plug plates are respectively arranged along the periphery of the short-circuit junctions; wherein the transverse insulating plug plates are in close contact with the column busbar of the aluminum electrolytic cell, and the longitudinal insulating plug plates are in close contact with the short-circuit junctions; the transverse insulating plug plates and the longitudinal insulating plug plates are both arranged as arc grooves, the arc grooves are crimped to each other by bolts, and aluminum soft strips are arranged extending downwardly along the arc grooves, a protective sleeve is arranged in a gap between the aluminum soft strip and the column busbar, and both sides of the protective sleeve are in close contact with the surface of the column busbar through aluminum strips.
[0007] This technical solution improves the shape of the horizontal insulating plug-in plate and the vertical insulating plug-in plate, and adds aluminum soft strips and protective sleeves to achieve effective insulation between the column busbar and the short-circuit junction to ensure the safe and stable operation of the aluminum electrolytic cell. In the electrolysis process of the aluminum electrolytic cell, the current flows through the column busbar to the inside of the electrolytic cell for electrolysis reaction; in order to ensure the stable flow of current and prevent current leakage, it is necessary to set up effective insulation measures between the column busbar and the short-circuit junction, introduce horizontal insulating plug-in plates and vertical insulating plug-in plates, and close to the column busbar and the short-circuit junction respectively to form an insulating barrier, effectively isolate the current, and prevent the current from flowing directly from the column busbar to the short-circuit junction, thereby avoiding possible short circuits and sparks. Both the horizontal insulating plug-in plates and the vertical insulating plug-in plates are set as arc grooves, which are not only easy to install and disassemble, but also can better adapt to the shape of the column busbar and the short-circuit junction, ensure the close fit between the insulating plug-in plates and them, and improve the insulation effect; the arc grooves are crimped together by bolts to further enhance the stability and insulation performance of the insulating plug-in plates. A protective sleeve is installed in the gap between the aluminum soft strip and the column busbar to prevent the aluminum soft strip from deforming due to long-term operation or external factors, and then contacting the column busbar to cause a short circuit; the protective sleeve is tightly attached to the surface of the column busbar, which can effectively prevent the deformation and displacement of the aluminum soft strip and ensure the safe operation of the electrolytic cell. The two sides of the protective sleeve are tightly attached to the surface of the column busbar through aluminum strips, which not only increases the stability of the protective sleeve and prevents it from falling off or shifting, but also further improves the insulation performance of the column busbar to ensure the safe operation of the electrolytic cell.
[0008] In addition, the short-circuit insulation device for aluminum electrolysis cell proposed in the utility model also has the following additional technical features:
[0009] According to an embodiment of the utility model, the transverse insulating plug plate and the longitudinal insulating plug plate are removed, the column bus bar is closely attached to and connected with the short-circuit port, the current is transmitted to the short-circuit port via the column bus bar, and finally transmitted to the next electrolytic cell.
[0010] In this technical solution, after the insulating plug is removed, the insulation isolation between the column busbar and the short-circuit port is lost, and they are closely attached and connected. The current flows directly from the column busbar to the short-circuit port without being blocked by the insulating plug.
[0011] According to an embodiment of the utility model, the length of the transverse insulating plug board is shorter than that of the longitudinal insulating plug board, the transverse insulating plug board is used to insulate the short-circuit busbar, and the longitudinal insulating plug board is used to block the short-circuit aluminum soft strip below the short-circuit.
[0012] In this technical solution, since the short-circuit busbar is a key part of current transmission, it needs to be effectively insulated to prevent current leakage or short circuit. The horizontal insulating plug is designed to be of moderate length, which can fit tightly on the short-circuit busbar to form an effective insulation barrier to ensure that the current will not leak through the busbar to other parts during transmission; the longitudinal insulating plug blocks the short-circuit aluminum soft strip below the short-circuit; the short-circuit aluminum soft strip is a flexible conductive material connecting the short-circuit and other parts of the aluminum electrolytic cell. During the electrolysis process, it may come into contact with the surrounding structure due to vibration, deformation, etc., resulting in current leakage or short circuit; the longitudinal insulating plug is long and can cover the entire area of the short-circuit aluminum soft strip, effectively preventing it from contacting the surrounding structure, thereby avoiding the risk of current leakage and short circuit.
[0013] According to an embodiment of the present invention, the material of the transverse insulating plug board and the longitudinal insulating plug board is SMC.
[0014] In this technical solution, SMC is a fiber-reinforced unsaturated polyester sheet molding compound for electrical use, which has good insulation properties and prevents short circuits and leakage, thereby ensuring the safety and stability of the aluminum electrolytic cell. Compared with traditional metal materials, SMC materials are lighter, which reduces the weight of the insulating plug, helps reduce the weight of the entire aluminum electrolytic cell, reduces energy consumption, and improves production efficiency.
[0015] According to an embodiment of the utility model, the protective sleeve plate is made of insulating material to prevent the aluminum soft strip from deforming and contacting the column busbar, causing a short circuit or leakage spark.
[0016] In this technical solution, the aluminum soft belt, as a flexible conductive material connecting the short-circuit port and other parts of the electrolytic cell, may be deformed by factors such as vibration and temperature changes during operation. The presence of the protective sleeve provides additional support and protection for the aluminum soft belt, reducing the possibility of its deformation, thereby maintaining its stable electrical performance. Electrical isolation is used to prevent the deformation of the aluminum soft belt and the contact with the column busbar to cause short circuits or leakage sparks, thereby ensuring the safe and stable operation of the aluminum electrolytic cell, taking into account both the electrical safety requirements and the stability and durability of the aluminum soft belt.
[0017] According to an embodiment of the utility model, at least one protective sleeve is arranged in the gap where the aluminum soft belt is located, and the protective sleeve is provided with mounting holes that match the aluminum strips.
[0018] In this technical solution, the aluminum strip is connected to the protective cover plate by passing through the mounting hole, and the protective cover plate is firmly fixed in the gap where the aluminum soft belt is located, which not only ensures the stability of the protective cover plate and prevents it from shifting or falling off during operation, but also improves the mechanical strength of the entire structure and enhances its ability to resist external interference. When the protective cover plate needs to be replaced or repaired, it is only necessary to loosen the connection between the aluminum strip and the mounting hole to conveniently remove the protective cover plate, which not only improves maintenance efficiency, but also reduces the difficulty of operation, making the maintenance and management of the aluminum electrolytic cell more convenient.
[0019] Compared with the prior art, the utility model has the following beneficial effects:
[0020] (1) By improving the shape of the horizontal and longitudinal insulating plugs and adding aluminum soft strips and protective sleeves, effective insulation between the column busbar and the short-circuit junction is achieved to ensure the safe and stable operation of the aluminum electrolytic cell.
[0021] (2) Its structure is safe, installation is convenient, insulation performance is strong, and quick plugging and unplugging can be achieved, thus ensuring the safe operation of the aluminum electrolysis series and ensuring the normal production of the series. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a structural schematic diagram of the utility model.
[0023] Figure 2 It is a structural schematic diagram of a transverse insulating plug board.
[0024] Figure 3 It is a structural schematic diagram of a longitudinal insulating plug board.
[0025] Figure 4 It is a structural diagram of the column busbar and the protective sleeve plate.
[0026] In the figure: 1. Busbar column; 2. Short-circuit junction; 3. Aluminum soft strip; 4. Horizontal insulating plug board; 5. Longitudinal insulating plug board; 6. Protective sleeve plate; 7. Aluminum strip; 8. Side insulating plate; 9. Fixed insulating plate. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] Example 1
[0029] like Figure 1As shown, the present embodiment provides an insulating device for a short-circuit junction of an aluminum electrolytic cell, comprising a column busbar 1, short-circuit junctions 2 are arranged on both sides of the column busbar 1, and transverse insulating plug plates 4 and longitudinal insulating plug plates 5 are respectively arranged along the periphery of the short-circuit junction 2; wherein the transverse insulating plug plate 4 is in close contact with the column busbar 1 of the aluminum electrolytic cell, and the longitudinal insulating plug plate 5 is in close contact with the short-circuit junction 2, the transverse insulating plug plate 4 and the longitudinal insulating plug plate 5 are both arranged as arc grooves, the arc grooves are crimped to each other by bolts, and an aluminum soft strip 3 is arranged extending downward along the arc groove, a protective sleeve plate 6 is arranged in a gap between the aluminum soft strip 3 and the column busbar 1, and both sides of the protective sleeve plate 6 are in close contact with the surface of the column busbar 1 through aluminum plate strips 7.
[0030] This technical solution improves the shape of the horizontal insulating plug board 4 and the vertical insulating plug board 5, and adds the aluminum soft strip 3 and the protective sleeve 6 to achieve effective insulation between the column busbar 1 and the short-circuit 2 to ensure the safe and stable operation of the aluminum electrolytic cell. In the electrolysis process of the aluminum electrolytic cell, the current flows through the column busbar 1 to the inside of the electrolytic cell for electrolysis reaction; in order to ensure the stable flow of current and prevent current leakage, it is necessary to set effective insulation measures between the column busbar 1 and the short-circuit 2, introduce the horizontal insulating plug board 4 and the vertical insulating plug board 5, respectively close to the column busbar 1 and the short-circuit 2, to form an insulation barrier, effectively isolate the current, and prevent the current from flowing directly from the column busbar 1 to the short-circuit 2, thereby avoiding possible short circuits and sparks. The transverse insulating plug plate 4 and the longitudinal insulating plug plate 5 are both set as arc grooves, which are not only convenient for installation and disassembly, but also can better adapt to the shape of the column busbar 1 and the short-circuit 2, ensuring the close fit between the insulating plug plate and them, and improving the insulation effect; the arc grooves are crimped together by bolts to further enhance the stability and insulation performance of the insulating plug plate. A protective sleeve 6 is set in the gap between the aluminum soft strip 3 and the column busbar 1 to prevent the aluminum soft strip 3 from being deformed due to long-term operation or external factors, and then contacting the column busbar 1 to cause a short circuit; the protective sleeve 6 is tightly attached to the surface of the column busbar 1, which can effectively prevent the deformation and displacement of the aluminum soft strip 3 and ensure the safe operation of the electrolytic cell. The two sides of the protective sleeve 6 are tightly attached to the surface of the column busbar 1 through aluminum strips 7, which not only increases the stability of the protective sleeve 6 and prevents it from falling off or shifting, but also further improves the insulation performance of the column busbar 1 to ensure the safe operation of the electrolytic cell.
[0031] In addition, the short-circuit insulation device for aluminum electrolysis cell proposed in the utility model also has the following additional technical features:
[0032] like Figure 2 and Figure 3 As shown, the transverse insulating plug board 4 and the longitudinal insulating plug board 5 are removed, the column busbar 1 is closely attached to and connected with the short-circuit port 2, and the current is transmitted to the short-circuit port 2 via the column busbar 1, and finally transmitted to the next electrolytic cell.
[0033] In this technical solution, after the insulating plug is removed, the insulation isolation between the column busbar 1 and the short-circuit port 2 is lost, and they are closely attached and connected. The current flows directly from the column busbar 1 to the short-circuit port 2 without being blocked by the insulating plug.
[0034] like Figure 2 and Figure 3 As shown, the length of the transverse insulating plug board 4 is shorter than that of the longitudinal insulating plug board 5 . The transverse insulating plug board 4 is used to insulate the busbar of the short-circuit junction 2 , and the longitudinal insulating plug board 5 is used to isolate the aluminum soft strip 3 of the short-circuit junction 2 below the short-circuit junction 2 .
[0035] In this technical solution, since the busbar of the short-circuit junction 2 is a key part of current transmission, it is necessary to provide effective insulation protection to prevent current leakage or short circuit. The horizontal insulating plug 4 is designed to have a moderate length, which can fit tightly on the busbar of the short-circuit junction 2 to form an effective insulation barrier to ensure that the current will not leak to other parts through the busbar during transmission; the longitudinal insulating plug 5 blocks the aluminum soft strip 3 of the short-circuit junction 2 below the short-circuit junction 2; the aluminum soft strip 3 of the short-circuit junction 2 is a flexible conductive material connecting the short-circuit junction 2 and other parts of the aluminum electrolytic cell, which may contact with the surrounding structure due to vibration, deformation, etc. during the electrolysis process, resulting in current leakage or short circuit; the longitudinal insulating plug 5 is relatively long and can cover the entire area of the aluminum soft strip 3 of the short-circuit junction 2, effectively preventing it from contacting with the surrounding structure, thereby avoiding the risk of current leakage and short circuit.
[0036] According to an embodiment of the present invention, the material of the transverse insulating plug board 4 and the longitudinal insulating plug board 5 is SMC.
[0037] In this technical solution, SMC is a fiber-reinforced unsaturated polyester sheet molding compound for electrical use, which has good insulation properties and prevents short circuits and leakage, thereby ensuring the safety and stability of the aluminum electrolytic cell. Compared with traditional metal materials, SMC materials are lighter, which reduces the weight of the insulating plug, helps reduce the weight of the entire aluminum electrolytic cell, reduces energy consumption, and improves production efficiency.
[0038] like Figure 4 As shown, the protective sleeve plate 6 is made of insulating material to prevent the aluminum soft strip 3 from deforming and contacting the column busbar 1, causing a short circuit or leakage spark.
[0039] In this technical solution, the aluminum soft belt 3, as a flexible conductive material connecting the short-circuit port 2 and other parts of the electrolytic cell, may be deformed by factors such as vibration and temperature changes during operation. The presence of the protective sleeve 6 provides additional support and protection for the aluminum soft belt 3, reducing the possibility of its deformation, thereby maintaining its stable electrical performance. Electrical isolation is used to prevent the deformation of the aluminum soft belt 3 and the contact with the column busbar 1, thereby ensuring the safe and stable operation of the aluminum electrolytic cell, taking into account both the requirements of electrical safety and the stability and durability of the aluminum soft belt 3.
[0040] According to an embodiment of the utility model, at least one protective sleeve plate 6 is arranged in the gap where the aluminum soft belt 3 is located, and the protective sleeve plate 6 is provided with mounting holes matched with the aluminum strips 7.
[0041] In the present technical solution, the aluminum strip 7 is connected to the protective cover plate 6 by passing through the mounting hole, and the protective cover plate 6 is firmly fixed in the gap where the aluminum soft belt 3 is located, which not only ensures the stability of the protective cover plate 6 and prevents it from shifting or falling off during operation, but also improves the mechanical strength of the entire structure and enhances its ability to resist external interference. When the protective cover plate 6 needs to be replaced or repaired, it is only necessary to loosen the connection between the aluminum strip 7 and the mounting hole to conveniently remove the protective cover plate 6, which not only improves the maintenance efficiency, but also reduces the difficulty of operation, making the maintenance and management of the aluminum electrolytic cell more convenient.
[0042] Please continue to see Figure 2 The transverse insulating plug plate 4 has an arc groove for fixing the bolts of the short-circuit 2. The transverse insulating plug plate 4 is 8 mm thick and made of SMC (fiber-reinforced unsaturated polyester sheet molding compound for electrical use). It is inserted from the outside to the inside of the electrolytic cell during installation. Figure 3 The longitudinal insulating plug plate 5 has an arc groove for fixing the bolts of the short-circuit 2. The thickness of the longitudinal insulating plug plate 5 is 8mm, and the material is SMC (fiber-reinforced unsaturated polyester sheet molding compound for electrical use). It is inserted from top to bottom during installation. Please continue to refer to Figure 4 The column busbar insulation protection sleeve 6 includes two side insulation plates 8 and four fixed insulation plates 9. The side insulation plates 8 and the fixed insulation plates 9 are fixed to the four sides of the aluminum electrolytic cell column busbar 1 by insulation bolts. At the same time, aluminum strips 7 are welded on both sides of the aluminum electrolytic cell column busbar 1 to prevent the column busbar insulation protection sleeve 6 from falling off. The thickness of each insulation plate in the column busbar insulation protection sleeve 6 is 8mm, and the material is SMC (fiber reinforced unsaturated polyester sheet molding compound for electrical use). By installing the above-mentioned aluminum electrolytic cell short-circuit insulation device, the aluminum electrolytic cell short-circuit 2 can be quickly opened and closed, while ensuring safe operation and ensuring the safe production and operation of the aluminum electrolytic cell.
[0043] The usage process of the above embodiment is as follows:
[0044] The aluminum electrolytic cell is in normal working condition, and the current flows into the electrolytic cell through the column busbar 1 for electrolytic reaction; the horizontal insulating plug plate 4 is close to the column busbar 1 of the aluminum electrolytic cell, and the vertical insulating plug plate 5 is close to the short-circuit 2, and the two form an insulating barrier to effectively isolate the current and prevent the current from flowing directly from the column busbar 1 to the short-circuit 2; the aluminum soft belt 3 extends downward along the arc groove, and a protective sleeve plate 6 is provided between the column busbar 1, and the protective sleeve plate 6 is close to the surface of the column busbar 1 through the aluminum plate strip 7 to prevent the aluminum soft belt 3 from deforming and contacting the column busbar 1; when it is necessary to change the current path or perform maintenance, unplug the horizontal insulating plug plate 4 and the vertical insulating plug plate 5; with the removal of the insulating plug plate, the insulation isolation between the column busbar 1 and the short-circuit 2 disappears, and the two are close and connected; after the insulating plug plate is removed, the current flows from The column busbar 1 flows directly to the short-circuit port 2, and is no longer blocked by the insulating plug plate. The current is transmitted to the next electrolytic cell via the short-circuit port 2, completing the change of the current path. During the current transmission process, the aluminum soft strip 3, as a flexible conductive material, may be affected by vibration or temperature changes. The protective sleeve 6 is tightly attached to the surface of the column busbar 1, and its insulating performance prevents the aluminum soft strip 3 from deforming and contacting the column busbar 1, thereby avoiding the occurrence of short circuit or leakage sparking. Regularly inspect the insulation device of the short-circuit port of the aluminum electrolytic cell, and check the integrity and tightness of the insulating plug plate. If the protective sleeve 6 needs to be replaced or repaired, loosen the connection between the aluminum strip 7 and the mounting hole, remove the protective sleeve 6 for replacement or repair; after the maintenance is completed, reinstall the insulating plug plate and the protective sleeve 6 to ensure the safe and stable operation of the aluminum electrolytic cell.
[0045] Although the utility model is described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the utility model is not limited thereto. Without departing from the spirit and essence of the utility model, ordinary technicians in the field can make various equivalent modifications or substitutions to the embodiments of the utility model, and these modifications or substitutions should be within the scope of the utility model / any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.
Claims
1. An aluminum electrolytic cell short-circuit insulation device, comprising a column busbar (1), short-circuit openings (2) are arranged on both sides of the column busbar (1), and transverse insulating plug boards (4) and longitudinal insulating plug boards (5) are respectively arranged along the periphery of the short-circuit opening (2); wherein: The transverse insulating plug plate (4) is in close contact with the column busbar (1) of the aluminum electrolytic cell, and the longitudinal insulating plug plate (5) is in close contact with the short-circuit junction (2). The transverse insulating plug plate (4) and the longitudinal insulating plug plate (5) are both arranged as arc grooves, the arc grooves are crimped together by bolts, and an aluminum soft belt (3) is arranged extending downward along the arc groove, and a protective sleeve (6) is arranged in the gap between the aluminum soft belt (3) and the column busbar (1), and both sides of the protective sleeve (6) are in close contact with the surface of the column busbar (1) through aluminum strips (7).
2. The short-circuit insulation device for an aluminum electrolysis cell according to claim 1, characterized in that: The transverse insulating plug board (4) and the longitudinal insulating plug board (5) are removed, the column busbar (1) and the short-circuit port (2) are closely attached and connected, and the current is transmitted to the short-circuit port (2) via the column busbar (1) and finally transmitted to the next electrolytic cell.
3. The short-circuit insulation device for an aluminum electrolysis cell according to claim 1 or 2, characterized in that: The transverse insulating plug board (4) is shorter than the longitudinal insulating plug board (5); the transverse insulating plug board (4) is used to insulate the busbar of the short-circuit junction (2); and the longitudinal insulating plug board (5) is used to isolate the short-circuit junction (2) from the aluminum soft strip (3) below the short-circuit junction (2).
4. The short-circuit insulation device for an aluminum electrolysis cell according to claim 3, characterized in that: The material of the transverse insulating plug board (4) and the longitudinal insulating plug board (5) is SMC.
5. The short-circuit insulation device for an aluminum electrolysis cell according to claim 1, characterized in that: The protective sleeve plate (6) is made of insulating material and is used to prevent the aluminum soft strip (3) from deforming and contacting the column busbar (1), thereby causing a short circuit or leakage sparking.
6. The short-circuit insulation device for an aluminum electrolysis cell according to claim 1, characterized in that: At least one protective sleeve plate (6) is arranged in the gap where the aluminum soft belt (3) is located, and a mounting hole matching with the aluminum strip (7) is arranged on the protective sleeve plate (6).