Lifting / lowering device for adjusting spacing between anode rod and alumina crust

Abstract

Disclosed in the present invention is a lifting / lowering device for adjusting the spacing between an anode rod and an alumina crust, comprising at least one continuous anode, a clamping frame being sleeved on the periphery of the continuous anode. A plurality of anode rods are provided between the clamping frame and the continuous anode; a pressing mechanism for making the anode rods contact the continuous anode is mounted on the clamping frame; a lifting / lowering mechanism is provided at the upper end of the clamping frame; the lifting mechanism comprises a first driver, a second driver and a lifter; a lifter joint connected to the second driver is provided at the upper portion of an output shaft of the lifter; an anode busbar is provided on the outer sides of the anode rods; a soft belt connected to the anode busbar and the anode rod closest thereto is provided therebetween. The present invention ensures the synchronization of continuous anodes, improves the accuracy of controlling electrode spacings and cell voltages, keeps the thermal balance of electrolytic cells, reduces energy consumption, improves current efficiency, and completely solves technical problems of controlling electrode spacings and adjusting the spacings between anode rods and alumina crusts.

Description

A lifting device for adjusting the spacing between the anode guide rod and the alumina junction shell. Technical Field

[0001] This invention relates to auxiliary devices for aluminum electrolysis, specifically a lifting device for adjusting the distance between the anode guide rod and the alumina shell. Background Technology

[0002] During electrolysis, the anode guide rod is pressed tightly around the anode and positioned above the alumina crust. The bottom of the anode is immersed in liquid electrolyte and continuously consumed, causing the distance between the anode and cathode (referred to as the electrode gap) to gradually increase. To maintain the thermal balance of the electrolytic cell, the electrode gap must remain stable. The anode lifting device drives the anode and anode guide rod downwards together. Because the position of the alumina crust remains essentially unchanged for a certain period, the distance between the anode guide rod and the alumina crust decreases. When the anode guide rod contacts the alumina crust, due to the high strength and intact state of the crust, the anode guide rod is stuck above the alumina crust and cannot move downwards. With the anode guide rod pressed tightly around the anode, downward movement of the anode is prevented, and the electrode gap cannot be kept stable. To avoid affecting the normal adjustment of the electrode gap, while keeping the anode stationary (i.e., with a stable electrode gap), the anode guide rod adjacent to the alumina crust is lifted in advance. When lifting the anode guide rods, it is necessary to reduce or release the pressure of the anode guide rods on the anode. However, if all or most of the anode guide rods are released from the anode, the anode will slip out of the anode guide rods, which can easily cause a major accident. Therefore, while holding the anode with multiple anode guide rods, first release the clamping of one (group of) anode guide rods on the anode, and then lift that anode guide rod (group of) anode guide rods individually along the anode surface to the designated position. In this way, lift all anode guide rods located at the lowest position (closest to the alumina crust) to the designated position (including the highest position and higher positions).

[0003] Existing anode lifting devices generally include screw-lifting mechanisms and ball screw-triangular plate lifting mechanisms, which lack the function of adjusting the distance between the anode guide rod and the alumina shell. When the anode guide rod is stuck above the alumina shell, there is a risk that the electrode distance cannot be adjusted in time. To solve this technical problem, a clutch and steering box device are added to the existing anode lifting device. This can meet the requirements of synchronous lifting of the anode and anode guide rod, and can also adjust the distance between the anode guide rod and the alumina shell within the process requirements while keeping the anode stationary. However, in working environments with high temperature, high magnetic field, high dust, heavy load, and easy deformation of support components, the function of the clutch deteriorates, the contact between the clutch driving and driven parts is unstable, the failure rate is high, and there are also many control points, which affect the accuracy of synchronous lifting of the anode and electrode distance control, affecting the installation, safe operation and maintenance of existing electrolytic cells, and requiring periodic lifting of the anode busbar.

[0004] The existing anode guide rod lifting device mainly includes a driver, corner steering boxes, couplings, drive shafts, steering boxes, clutches, and a lifting platform. The drive shafts and couplings connect adjacent steering boxes, which are connected to the lifting platform via clutches. The lifting platform connects to the anode guide rods. When the pitch needs to be adjusted, all clutches are engaged first. All steering boxes are connected to all lifting platforms via the engaged clutches. The operating anode lifting device then lifts all anode guide rods and anodes to the designated position. When only a portion of the anode guide rod needs to be lifted, only the clutch on the lifting platform connected to that anode guide rod is engaged. The driver is then activated, driving the drive shaft and steering boxes. The engaged lifting platform lifts the anode guide rod to the designated position. This process is repeated until all the anode guide rods to be lifted are in the designated position. Because multiple steering boxes, clutches, and associated wiring and control systems are installed, the device occupies considerable space. In situations where space above the electrolytic cell is limited, this causes significant conflicts between operation and maintenance. Furthermore, it suffers from cumbersome control, frequent clutch operation leading to rapid wear and tear, and easy damage. Summary of the Invention

[0005] To address the problems of existing anode guide rod lifting devices, such as large space occupation affecting operation and maintenance, cumbersome control, frequent clutch operation leading to rapid wear and easy damage, this invention provides a lifting device for adjusting the distance between the anode guide rod and the alumina shell. This overcomes the problems of multiple control points, reduced functionality, high failure rate, and poor pitch control accuracy.

[0006] This invention is achieved using the following technical solution:

[0007] A lifting device for adjusting the distance between an anode guide rod and an alumina shell includes at least one continuous anode. At least one clamping frame is fitted around the continuous anode. Several anode guide rods are arranged between the clamping frame and the continuous anode. At least one clamping mechanism is installed on the clamping frame to make the anode guide rods contact the continuous anode. At least one lifting mechanism is provided on the clamping frame. The lifting mechanism includes a first driver, a second driver, and several lifting machines. A lifting machine connector connected to the second driver is provided on the upper part of the lifting machine output shaft and / or on the drive shaft. An anode busbar is provided on the outer side of the anode guide rod. A flexible strap connecting the anode busbar and at least one anode guide rod is provided between the two.

[0008] Preferably, the elevator includes an output shaft, and the elevator is connected to the first driver of the lifting anode guide rod and the continuous anode via a transmission component. The lower part of the elevator output shaft is connected to the anode guide rod, or the lower part of the elevator output shaft is connected to the anode guide rod via a connector. The elevator and the corresponding second driver are detachably connected. When the second driver is running, the installed first driver remains stationary. When the first driver is running, the elevator connector is separated from the second driver.

[0009] Preferably, the elevator connector is matched with the second drive connector.

[0010] Preferably, the connector includes a first connector and a second connector, wherein the first connector is connected to the second connector, or the first connector is connected to the second connector via a connecting plate or a rotator; the first connector is connected to the anode guide rod, or the first connector is connected to the anode guide rod via a lifting point; the second connector is connected to the elevator output shaft via a rotator, or the second connector is connected to the elevator output shaft.

[0011] Preferably, the anode guide rod includes a first anode guide rod, a second anode guide rod, or a first anode guide rod and a second anode guide rod; the second anode guide rod includes an upper guide rod and a lower guide rod connected to the upper guide rod, the upper guide rod is connected to the second end of the flexible strip, and the lower guide rod is connected to the first connecting member of the connector, and the current on the flexible strip is conducted to the lower guide rod through the upper guide rod; or the upper guide rod is connected to the first connecting member of the connector, and the lower guide rod is connected to the second end of the flexible strip.

[0012] Preferably, the anode busbar includes an input-side anode busbar, an output-side anode busbar, or an input-side anode busbar and an output-side anode busbar installed around the anode guide rod. The input-side anode busbar is connected to the first end of the flexible strip, or the output-side anode busbar is connected to the first end of the flexible strip, or both the input-side anode busbar and the output-side anode busbar are connected to the first end of the flexible strip.

[0013] Preferably, the clamping mechanism includes a spring assembly vertically mounted on the clamping frame, a cylinder mounted on the upper end or front of the spring assembly, the spring assembly or the cylinder and the spring assembly being connected to a linkage mechanism for adjusting the pressure of the anode guide rod, the linkage mechanism being connected to a roller assembly, the roller assembly contacting the anode guide rod and pressing the anode guide rod onto the continuous anode.

[0014] Preferably, the clamping frame includes an upper beam, a lower beam, and a support member, with the support member connecting the upper beam and the lower beam, and at least one window provided between the upper beam, the lower beam, and the support member or on the support member.

[0015] Preferably, the clamping frame is mounted above the cathode of the electrolytic cell via several support pillars.

[0016] Preferably, the second end of the flexible strip passes over the top surface of the upper beam of the clamping frame and connects to the anode guide rod, or the second end of the flexible strip passes over the bottom surface of the lower beam of the clamping frame and connects to the anode guide rod, or the second end of the flexible strip passes through the window on the clamping frame and connects to the anode guide rod.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Eliminates the steering box, clutch, and clutch wiring, piping, and control devices in existing anode lifting devices. The transmission components are directly connected to the elevator, and the first drive directly lifts the anode guide rod and continuous anode. When it is necessary to adjust the spacing between the anode guide rod and the alumina shell, the elevator joint is connected to the second drive joint. During normal operation, the elevator joint does not need to be connected to the second drive, and the second drive does not need to be installed on the clamping frame. The available space of the clamping frame is increased, making installation, operation, and maintenance easier and safer, and allowing the adoption of the optimal technical solution.

[0019] 2. The first end of the flexible strip connected to the anode busbar remains stationary, eliminating the need for the high safety requirements, complex operation, specialized equipment, and periodic anode busbar lifting required in existing electrolytic cells. Furthermore, the flexible strip only moves vertically in a localized manner, requiring less space and encountering less resistance. This reduces the difficulty of lifting the anode guide rod with the second actuator, increasing the anode guide rod lifting range from approximately 20cm in existing technology to over 41cm. The lifting cycle of the anode guide rod is extended by more than double, reducing the number of lifting operations and the number of connections between the second actuator and the lifting mechanism by more than half. Simultaneously, the window size reserved in the clamping frame for the vertical movement of the flexible strip is significantly reduced, and the arrangement of support components is less affected and more flexible by the vertical movement of the flexible strip. This further improves the performance of the clamping frame and optimizes the electrolytic cell structure while reducing the design and manufacturing difficulty of the clamping frame and electrolytic cell.

[0020] 3. When the connection between the flexible strip and the anode guide rod is detachable, maintenance and replacement of the anode guide rod are simple and efficient. This facilitates the removal of the output anode busbar and the flexible strip connected to the anode guide rod during normal operation, and makes it easier for the second driver to lift the anode guide rod.

[0021] 4. When the anode busbars are connected by a movable connection, the power-outside anode busbar, flue end busbar, aluminum outlet end busbar, and the soft belt connecting the power-outside anode busbar to the anode guide rod can be removed during normal operation. This facilitates the positioning and operation of the second drive, further reduces the difficulty of lifting the anode guide rod, and saves investment.

[0022] 5. The anode guide rod includes an upper guide rod and a lower guide rod, which solves the problem of conflict when the soft strip and connector are connected to the anode guide rod. It is beneficial for the anode guide rod to continuously clamp the continuous anode, and it is easier to adjust the distance between the anode guide rod and the alumina shell. It further optimizes the connection between the anode guide rod, the soft strip and the connector, reduces the design, installation and manufacturing difficulty of the clamping frame and the lifting machine, and makes the clamping frame structure more reasonable and compact, thereby increasing the lifting range of the anode guide rod.

[0023] 6. This invention addresses the technical problems of existing anode guide rod lifting devices, which use a single driver to adjust the electrode pitch and lift the anode guide rod individually, resulting in multiple control points, deteriorated clutch function, high failure rate, and poor electrode pitch control accuracy. It employs a first driver to control the electrode pitch, ensuring the synchronization of continuous anodes, improving the accuracy of electrode pitch and cell voltage control, maintaining the thermal balance of the electrolytic cell, reducing cell operating voltage, reducing energy consumption, and improving current efficiency. A second driver adjusts the distance between the anode guide rod and the alumina shell, making installation efficient, simple, and reliable. Operation is simple, efficient, and stable, achieving automation.

[0024] 7. Equipping approximately every 30 to 50 electrolytic cells with one (or set) second drive instead of the steering box, clutch, and clutch control device installed in each electrolytic cell in the existing technology reduces the manufacturing cost and maintenance expenses of the continuous anode lifting mechanism by more than 50%. At the same time, the second drive has the function of driving the anode guide rod to move downward, thereby reducing the distance between the anode guide rod and the alumina crust.

[0025] 8. When the second drive is working, it drives the output shaft of the elevator. The transmission components connected to the elevator and the first drive remain stationary. The linkage between the elevator joint and the connector ensures that the first and second drives do not affect each other, their functions do not conflict, and they are highly complementary. The rotator in the connector does not obstruct the rotation of the output shaft, nor does it affect the second drive's ability to drive the output shaft to rotate. It keeps the original positions of the first connector, the anode guide rod, and the flexible belt connected to the anode guide rod unchanged, i.e., it maintains its original non-rotating state. As the output shaft rotates upward, the connector drives the anode guide rod and the second end of the flexible belt connected to the anode guide rod to move upward while maintaining non-rotation. This allows the same elevator and the first drive to complete the work of adjusting the pole pitch in a certain period of time, and the second drive to complete the work of adjusting the distance between the anode guide rod and the alumina shell in another period of time. This solves the technical problems existing in pole pitch control and the distance adjustment between the anode guide rod and the alumina shell. The output shaft has a simple structure, low cost, and is reliable, durable, and trouble-free. Attached Figure Description

[0026] Figure 1 is a schematic diagram of the lifting device of the present invention for adjusting the distance between the anode guide rod and the alumina shell;

[0027] Figure 2 is a top view of the anode busbar connection of the lifting device of the present invention used to adjust the spacing between the anode guide rod and the alumina shell;

[0028] Figure 3 shows a top view of the clamping frame of the lifting device of the present invention used to adjust the distance between the anode guide rod and the alumina shell.

[0029] Figure 4 shows a schematic front view of the clamping frame beam of the lifting device of the present invention used to adjust the distance between the anode guide rod and the alumina shell.

[0030] Figure 5 is a schematic front view of the clamping frame beam of the lifting device for adjusting the distance between the anode guide rod and the alumina shell according to the present invention;

[0031] Figure 6 shows a front view of the second anode guide rod of the lifting device of the present invention used to adjust the distance between the anode guide rod and the alumina shell.

[0032] Figure 7 shows a side view of the connector of the lifting device of the present invention used to adjust the distance between the anode guide rod and the alumina shell.

[0033] Figure 8 shows a side view of another connector of the lifting device of the present invention used to adjust the distance between the anode guide rod and the alumina shell.

[0034] Figure 9 shows a side view of the third type of connector of the lifting device of the present invention used to adjust the distance between the anode guide rod and the alumina shell.

[0035] Figure 10 shows a side view of the fourth type of connector of the lifting device of the present invention used to adjust the distance between the anode guide rod and the alumina shell.

[0036] Figure 11 shows a side view of the fifth type of connector of the lifting device of the present invention used to adjust the distance between the anode guide rod and the alumina shell.

[0037] Reference numerals in the attached drawings: Continuous anode 1, anode guide rod 2, upper guide rod 21, lower guide rod 22, connecting pin 23, cylinder 31, spring assembly 32, pull rod 33, connecting rod 34, roller assembly 35, anode busbar 4, power inlet side anode busbar 41, power outlet side anode busbar 42, aluminum outlet end anode busbar 43, flue end anode busbar 44, stud 45, flexible belt 5, first end of flexible belt 51, second end of flexible belt 52, connector 6, first connector 61, hemisphere 611, first connector through hole 612, flange 613, bearing 614, second connector 62, second... 621 connecting hole, 622 connecting cylinder, 63 connecting plate, 7 lifting platform, 71 lifting platform output shaft, 711 bearing, 712 limit nut, 713 hemispherical hole, 714 cylindrical hole, 715 pin, 72 lifting platform connector, 73 threaded sleeve, 731 threaded sleeve through hole, 8 clamping frame, 81 upper beam, 82 lower beam, 83 column, 84 diagonal brace, 841 window, 85 plate beam, 851 plate beam window, 86 power inlet side beam, 87 power outlet side beam, 88 aluminum outlet beam, 89 flue beam, 89a fastening beam, 9 alumina shell, 10 cathode, 11 support column, 12 support column base. Detailed Implementation

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] The distance between the anode guide rod and the alumina shell refers to the vertical distance between the lower edge of the anode guide rod and the upper surface of the alumina shell.

[0040] As shown in Figure 1, the present invention provides a lifting device for adjusting the spacing between the anode guide rod and the alumina shell, comprising at least one continuous anode 1, at least one clamping frame 8 surrounding the continuous anode 1, a plurality of anode guide rods 2 disposed between the clamping frame and the continuous anode, at least one clamping mechanism for contacting the anode guide rods with the continuous anode being installed on the clamping frame 8 or the anode guide rods 2, at least one lifting mechanism being provided on the clamping frame, the lifting mechanism being connected to the anode guide rods 2, the lifting mechanism comprising a first driver, a second driver and a plurality of lifting machines 7, a lifting machine connector 72 connected to the second driver (not shown in the figure) being provided on the lifting machine output shaft 71 and / or drive shaft, an anode busbar 4 being provided on the outer side of the anode guide rod, a flexible strap 5 being provided between the anode busbar 4 and at least one anode guide rod 2 and connected to both, the clamping frame being mounted above the cathode of the electrolytic cell via a support column 11, or the clamping frame being mounted above the cathode of the electrolytic cell via a support column 11 and a support column base 12. The continuous anode is located above the cathode 10, and an alumina shell 9 is formed around the continuous anode and between the cathode. The anode guide rod is located above the alumina shell. Continuous anodes include self-baking continuous anodes, prebaked continuous anodes, and new continuous anodes; new continuous anodes include, but are not limited to, aluminum frame anodes, aluminum cylinder anodes, and composite anodes.

[0041] Preferably, the lifting platform 7 includes a lifting platform output shaft. The lifting platform 7 is connected to the lifting anode guide rod and the first driver (not shown in the figure) of the continuous anode via a transmission component. The lower part of the lifting platform output shaft 71 is connected to the anode guide rod, or the lower part of the lifting platform output shaft 71 is connected to the anode guide rod 2 via a connector 6. When several anode guide rods clamp the continuous anode and the first driver and the continuous anode remain stationary, the second driver is connected to at least one lifting platform joint and operates, driving the lifting platform output shaft to run, causing the anode guide rod 2 and the second end 52 of the flexible belt to move up and down, adjusting the distance between the anode guide rod and the alumina shell. The lifting platform and the corresponding second driver are detachably connected. When the second driver is running, the installed first driver remains stationary; when the first driver is running, the second driver is separated from the lifting platform joint (including when the second driver is not installed, or when it is installed and remains separated and not connected). The lifting platform is mounted on the clamping frame, or the lifting platform is mounted on the clamping frame via a base. The transmission components include a drive shaft, a coupling, and a corner steering box. The elevator is connected to the first drive unit via the drive shaft, coupling, and corner steering box; alternatively, the transmission components include a coupling and a corner steering box, and the elevator is connected to the first drive unit via the coupling and corner steering box. The connection between the elevator joint and the second drive unit refers to temporarily connecting the second drive unit to at least one elevator joint when adjusting the spacing between the anode guide rod and the alumina shell. After the adjustment of the spacing between the anode guide rod and the alumina shell is completed, the second drive unit is separated from the elevator joint and removed.

[0042] Preferably, when the elevator drive shaft is provided with an elevator joint connected to the second driver, the drive shaft, driven by the second driver, drives the elevator output shaft to move up and down.

[0043] Preferably, when a single elevator includes at least one drive shaft, the transmission components of the first driver and the second driver are connected to the same drive shaft at different time periods, or the transmission components of the first driver and the second driver are connected to different drive shafts of the same elevator at a certain time period.

[0044] Preferably, the lifting joint 72 matches the second drive joint, including embedded and protruding lifting joints. The lifting joint structure includes flat, triangular, square, and polygonal shapes. The joint is made of any of the following: wear-resistant, corrosion-resistant, high-strength alloy steel, bearing steel, stainless steel, and tool steel. The lifting platform may also include screw jacks, auger jacks, worm gear screw jacks, ball screw jacks, gear jacks, lifting devices, and any combination of the above mechanisms.

[0045] Preferably, the connector 6 includes a first connector 61 and a second connector 62. The first connector 61 is connected to the second connector 62, or the first connector is connected to the second connector 62 via a connecting plate or a rotator. The first connector 61 is connected to the anode guide rod 2, or the first connector 61 is connected to the anode guide rod 2 via a lifting point. The second connector 62 is connected to the output shaft of the elevator via a rotator; or the second connector 62 is connected to the output shaft 71 of the elevator. The connector meets the requirements of reliable connection with the anode guide rod and the elevator, convenient disassembly, not affecting the lifting range of the anode guide rod, not affecting the connection between the soft belt and the anode guide rod, and not increasing the load on the elevator when lifting the anode. It also meets the requirements of maintaining the original orientation of the anode guide rod and the soft belt connected to the anode guide rod and lifting vertically while the output shaft of the elevator rotates and lifts. At the same time, it does not affect the rotation and lifting of the output shaft while maintaining the original orientation of the anode guide rod and the soft belt connected to the anode guide rod and lifting vertically.

[0046] The first connecting component includes any or any combination of a connecting plate, a connecting shaft, a connecting sleeve, a coupling, and a crossbeam. The crossbeam may also have a hemispherical hole for placing a hemisphere that fits the spherical shape of the rotator. The second connecting component includes any or any combination of a connecting plate, a connecting shaft, a coupling, and a crossbeam. The crossbeam may also have a hemispherical hole for supporting the hemisphere that fits the spherical shape of the rotator. The rotator includes a bearing, a threaded sleeve, a nut, and a hemisphere that fits the spherical shape of the first connecting component and / or the second connecting component. The threaded sleeve has threads on its outer side and a through hole inside.

[0047] As shown in Figure 7, the first connecting piece 61 is connected to the anode guide rod 2 via the connecting pin 23, and the first connecting piece 61 is fixedly connected to the second connecting piece 62 via the connecting plate 63. The second connecting piece 62 has a through hole 621 through which the elevator output shaft 71 passes, and the elevator output shaft is connected to the second connecting piece 62 via a sleeved bearing 711 and / or a limiting nut 712. Therefore, the second connecting piece is connected to the elevator output shaft via a rotator (bearing 711). When the second driver drives the elevator output shaft to move up and down, under the action of the rotator, the original positions of the first connecting piece, the second connecting piece, and the anode guide rod remain unchanged (i.e., they do not rotate) and move up and down with the output shaft.

[0048] As shown in Figure 8, the first connecting member 61 is connected to the anode guide rod 2. The elevator output shaft 71 passes through the through hole 621 on the second connecting member 62, and the elevator output shaft 71 is connected to the second connecting member 62 through the sleeved limiting nut 712 and / or bearing 711. Therefore, the second connecting member is connected to the elevator output shaft through the rotator (bearing 711). When the second driver drives the elevator output shaft to move up and down, under the action of the rotator, the original positions of the first connecting member, the second connecting member, and the anode guide rod remain unchanged (i.e., do not rotate) and move up and down with the output shaft.

[0049] As shown in Figure 9, the first connecting member 61 is connected to the anode guide rod 2, and the second connecting member 62 is provided with a coupling for placing the rotator. The coupling is composed of a hemispherical hole 713 and a cylindrical hole 714 that match the spherical shape of the hemispherical ball 611 of the rotator. The elevator output shaft 71 passes through the coupling and is connected to the second connecting member 62 through the hemispherical ball 611. The hemispherical ball 611 and the hemispherical hole 713 are clearance-fitted. The elevator output shaft 71 is fitted with a limit nut 712. Therefore, the second connecting member is connected to the elevator output shaft through the rotator (hemispherical ball 611). When the second driver drives the elevator output shaft to rotate and move up and down, under the action of the rotator, the original positions of the first connecting member, the second connecting member, and the anode guide rod remain unchanged (i.e., do not rotate) and move up and down with the output shaft.

[0050] As shown in Figure 10, the elevator output shaft 71 is connected to the second connecting member 62 via a pin 715. The second connecting member 62 passes through the through hole 612 on the first connecting member and is connected to the first connecting member 61. The second connecting member 62 is fitted with a limit nut 712 and / or a bearing 711. Therefore, the first connecting member is connected to the second connecting member via a rotator (bearing 711). The first connecting member 61 is connected to the anode guide rod 2. When the second driver drives the elevator output shaft to rotate and move up and down, the second connecting member 62 rotates and moves up and down with the elevator output shaft. Under the action of the rotator, the original positions of the first connecting member and the anode guide rod remain unchanged (i.e., they do not rotate) and move up and down with the output shaft.

[0051] As shown in Figure 11, the elevator output shaft 71 is connected to the second connecting member 62. The second connecting member 62 includes a connecting cylinder 622 with an internal thread on its inner wall and an external thread on the outer side of a threaded sleeve 73. The threaded sleeve 73 has a threaded sleeve through hole 731 for the first connecting member 61 to pass through. The first connecting member 61 has a flange 613 at its upper end and is mounted on the upper end of the threaded sleeve 73 via a bearing 614. The threaded sleeve 73 is threadedly connected to the connecting cylinder 622 of the second connecting member. Therefore, the first connecting member is connected to the second connecting member via a rotator (bearing 614). The first connecting member 61 is connected to the anode guide rod 2. When the second driver drives the elevator output shaft to move up and down, the second connecting member moves up and down with the elevator output shaft. Under the action of the rotator, the original positions of the first connecting member and the anode guide rod remain unchanged (i.e., they do not rotate) and move up and down with the output shaft.

[0052] The first driver is mounted on the clamping frame and includes a motor and / or a reducer. The motor and / or reducer drive the transmission and the lifting mechanism, which move all continuous anodes and all anode guide rods together each time to adjust the electrode pitch and the cell voltage.

[0053] The second actuator includes a small electric motor, hydraulic motor, pneumatic motor, an anode guide rod lifting device with a bracket, or an anode lifting device with a bracket, and an electric wrench, hydraulic wrench, or pneumatic wrench. When the second actuator drives the output shaft of the lifting platform, the first actuator, transmission components, and the lifting platform (excluding the output shaft) remain stationary. While maintaining continuous anode stationary position, the second actuator adjusts the distance between the anode guide rod and the alumina shell, driving one (or group) of anode guide rods upwards in batches until all anode guide rods are lifted to the designated positions in batches. When lifting the anode guide rods, the second actuator connects to the lifting platform connector; after completing the anode guide rod lifting operation, the second actuator separates from the lifting platform connector and is removed. The object driven by the second actuator is part of the first actuator, so its power is relatively small. Connecting the lifting platform connector to the second actuator means that when adjusting the distance between the anode guide rod and the alumina shell, the second actuator is temporarily connected to at least one lifting platform connector; after completing the adjustment of the distance between the anode guide rod and the alumina shell, the second actuator separates from the lifting platform connector and is removed.

[0054] When the second drive uses an existing anode guide rod lifting device with a bracket or an existing anode lifting device, the bracket is placed on the upper end of the clamping frame and kept stable. According to the need to lift the anode guide rod, the output shaft connector of the elevator or crane installed on the bracket is connected to the elevator connector of this application. The elevator or crane used by the two are basically the same in function, only the model, specifications, etc. are different.

[0055] Preferably, as shown in Figure 6, the anode guide rod 2 includes a first anode guide rod, a second anode guide rod, or both. The first anode guide rod is an anode guide rod. The second anode guide rod includes an upper guide rod 21 and a lower guide rod 22 connected to the upper guide rod. The upper guide rod 21 and the lower guide rod 22 are connected by welding, pressing, riveting, or other structures achievable with existing technology. The upper guide rod 21 is connected to the second end 52 of the flexible strip, and the lower guide rod 22 is connected to the first connecting member 61 of the connector. The current on the flexible strip 5 is conducted to the lower guide rod through the upper guide rod; or the upper guide rod 21 is connected to the first connecting member 61 of the connector, and the lower guide rod 22 is connected to the second end 52 of the flexible strip. Alternatively, the second anode guide rod may include a left guide rod and a right guide rod; the left guide rod is connected to the second end of the flexible strip, and the right guide rod is connected to the first connecting member of the connector, or the right guide rod is connected to the second end of the flexible strip, and the left guide rod is connected to the first connecting member of the connector; or the second anode guide rod may include an inner guide rod (in contact with the continuous anode) and an outer guide rod (in contact with the clamping mechanism or roller); the outer guide rod is connected to the second end of the flexible strip, and the inner guide rod is connected to the first connecting member of the connector, or the inner guide rod is connected to the second end of the flexible strip, and the outer guide rod is connected to the first connecting member of the connector. The shape and structure of this anode guide rod can meet the requirements of connecting and separating from the connector and flexible strip, lifting the anode guide rod to a designated position, installing, operating, and maintaining the clamping mechanism, ensuring high friction between the anode guide rod and the continuous anode, facilitating disassembly or reconnection to the flexible strip, smoothly conducting current from the flexible strip to the continuous anode, and continuously clamping the continuous anode.

[0056] Preferably, as shown in Figure 2, the anode busbar includes an input-side anode busbar 41 and an output-side anode busbar 42, or an input-side anode busbar and an output-side anode busbar, installed around the anode guide rod 2. It also includes an aluminum-exit end anode busbar 43 and a flue-end anode busbar 44. The input-side anode busbar 41 is connected to the first end 51 of the flexible strip, or the output-side anode busbar 42 is connected to the first end 51 of the flexible strip, or both the input-side anode busbar 41 and the output-side anode busbar 42 are connected to the first end 51 of the flexible strip. During the start-up of the electrolytic cell roasting process, the aluminum-exit end anode busbar and the flue-end anode busbar are connected to the input-side anode busbar and the output-side anode busbar by tightened fasteners (such as studs 45, bolts, etc.) or by welding. During normal operation, the output-side anode busbar, the aluminum-exit end anode busbar, and the flue-end anode busbar can be removed. When one set of anode busbars (power output side, aluminum output end, and flue end) is configured for every 30-60 electrolytic cells for use during the start-up of the electrolytic cells during roasting, the manufacturing cost of the anode busbars can be reduced, and the connection between the second drive and the elevator can be facilitated. The anode busbars are mounted on the clamping frame and do not rise or fall with the anodes and / or anode guide rods, remaining stationary.

[0057] Preferably, the second end 52 of the flexible strip extends beyond the top surface of the upper beam of the clamping frame and connects to the anode guide rod 2, or the second end 52 of the flexible strip extends beyond the bottom surface of the lower beam of the clamping frame and connects to the anode guide rod 2, or the second end 52 of the flexible strip passes through the window on the clamping frame and connects to the anode guide rod 2, or the second end 52 of the flexible strip is connected to the front and / or side of the anode guide rod (not shown in the figure), so as to conduct the current on the anode busbar to the anode guide rod. The second end of the flexible strip and the anode guide rod are movably connected; wherein, when the second end of the flexible strip and the anode guide rod are detachably connected, or when the second end of the flexible strip and the anode guide rod are detachably connected through an intermediate part, the two are easy to disassemble and separate. The detachable connection includes crimping, riveting, tenoning, and flexible strip connection. Maintenance and replacement of the anode guide rod are easy, simple and efficient, solving the problem of separating or connecting the flexible strip and the anode guide rod by cutting or welding during replacement of the anode guide rod and major overhaul of the electrolytic cell. It is convenient to remove the anode busbar on the output side connected to the anode guide rod and the flexible strip on it during normal operation of the electrolytic cell. Flexible strips include sheet, strip, and bundle forms, made of metals or metal alloys with good conductivity, high flexibility, and high strength. Intermediate components include conductive blocks of aluminum blocks, aluminum plates, and aluminum busbars.

[0058] Preferably, the clamping mechanism includes a spring assembly 32 vertically mounted on the clamping frame. The spring assembly includes a spring and a housing, with the spring installed inside the housing. A cylinder 31 is mounted on the upper end or front of the spring assembly 32. The spring assembly or the cylinder and spring assembly are connected to a linkage mechanism for adjusting the pressure on the anode guide rod. The linkage mechanism is connected to a roller assembly 35, which contacts the anode guide rod and presses it against the continuous anode. The roller assembly includes a roller and a roller seat, with the roller mounted on the roller seat. The linkage mechanism includes a pull rod 33 connected to the spring and / or the cylinder, with a connecting rod 34 hinged to the pull rod 33. The degree of pressure of the anode guide rod on the continuous anode is adjusted by the cylinder, spring, pull rod, connecting rod, and roller, and the movement of one (or a group of) anode guide rods up and down along the surface of the continuous anode is controlled. The clamping mechanism applies pressure to the anode guide rod through the rollers, generating friction between the anode guide rod and the continuous anode. This friction ensures that the anode guide rod continuously clamps the continuous anode. In both the clamped and released states, the anode guide rod is lifted along the continuous anode surface, including contact, separation, intermittent contact and separation, or partial contact and partial separation between the anode guide rod and the continuous anode. As the anode guide rod moves, its direction toward the continuous anode remains constant. A clamping mechanism is mounted on the anode guide rod and / or the clamping frame.

[0059] The clamping mechanism is a device that clamps the anode guide rod onto the anode and releases or adjusts the clamping of the anode guide rod onto the anode. It includes any one of the following mechanisms or any combination of the above mechanisms: lead screw mechanism, wedge mechanism, cam mechanism, spring mechanism, scissor clamping mechanism, expansion clamping device, eccentric wheel mechanism, clamp, and tightening bolt mechanism.

[0060] The clamping frame can be a single-layer or double-layer structure. When the clamping frame is single-layered, it includes an input side beam and an output side beam, with a clamping mechanism and a lifting mechanism mounted on the input and output side beams. When the clamping frame is double-layered or multi-layered, it includes an upper beam, a lower beam, and a support member. The upper beam includes the uppermost input and output side beams, and the lower beam includes the lowermost input and output side beams. A support member connects the upper and lower beams. At least one window is provided between the upper beam, lower beam, and support member, or at least one window is provided on the support member. The support member increases the strength and rigidity of the clamping frame and is made of profiles or plates, either individually or in any combination. Profiles can be inclined or vertical. A clamping mechanism is installed on the upper beam and / or the lower beam, and a lifting mechanism is installed on the upper beam and / or the lower beam. A shell-breaking device, a feeding device, an exhaust device, and an anode busbar can also be installed on the upper or lower beam. The clamping frame is mounted above the cathode of the electrolytic cell via several support pillars 11, or the clamping frame is mounted above the cathode of the electrolytic cell via several support pillars 11 and corresponding support pillar bases 12. The use of support pillars increases the support points of the clamping frame and the stress points of the cathode, reducing or avoiding the deformation of the clamping frame and cathode in the vertical direction, and extending the service life of the clamping frame and cathode.

[0061] Preferably, as shown in Figure 3, the clamping frame includes an inlet beam 86 located on the inlet side of the electrolytic cell, an outlet beam 87 located on the outlet side of the electrolytic cell, an aluminum outlet beam 88 located at the aluminum outlet end of the electrolytic cell, a flue beam 89 located at the flue end of the electrolytic cell, and at least one fastening beam 89a located between the aluminum outlet end and the flue end. The inlet beam, outlet beam, aluminum outlet beam, flue beam, and fastening beam are connected together to form the clamping frame; or any combination of the aluminum outlet beam, flue beam, and fastening beam (including combinations of several fastening beams) is connected to the inlet beam and the outlet beam to form the clamping frame; the ends of the inlet beam 86 and the outlet beam 87 are located inside or outside the ends of the aluminum outlet beam 88 and the flue beam 89, or are flush with them.

[0062] Preferably, as shown in Figure 4, a window 841 is provided between the upper beam 81, the lower beam 82, and the support member, and the support member includes a diagonal brace 84 and a column 83. As shown in Figure 5, the support member between the upper beam 81 and the lower beam 82 includes a plate beam 85, and a plate beam window 851 is provided on the plate beam 85.

[0063] The clamping frame is made of high-temperature resistant, high-strength, and corrosion-resistant materials. Its mechanical properties meet the requirements for clamping and supporting continuous anodes below 350℃. Specifically, it is made of high-temperature resistant high-strength steel or stainless steel. Alternatively, the power-inlet side beam can include steel plates, structural steel, and insulating plates, i.e., the anode busbar is covered with steel plates, structural steel, and insulating plates. This reduces material usage while increasing the rigidity and strength of the power-inlet side beam, optimizing the structure of the clamping frame and the electrolytic cell, as well as the path for current to be introduced into the continuous anode. Compared with the existing electrolytic cell support beams that reserve window sizes for vertically moving connecting busbars, anode busbars, or anode guide rods, the window size reserved for vertical movement of the flexible belt in the clamping frame is reduced by more than 60% while meeting the lifting range requirements. The arrangement of support components in double-layer or higher clamping frames is less affected by the vertical movement of the flexible belt and is more flexible, reducing the design and manufacturing difficulty of the clamping frame and the electrolytic cell. While ensuring the rigidity and strength of the clamping frame meet process requirements, material usage is reduced by more than 10%. Simultaneously, installing and maintaining the lifting mechanism on the clamping frame is easier and safer.

[0064] This invention also provides a method of use, including the following:

[0065] The first driver for adjusting the pole pitch is activated, which drives the transmission component to operate the elevator, causing the anode guide rod and the clamped continuous anode to move up and down synchronously. At the same time, it causes the second end of the soft belt connected to the anode guide rod to move up and down, while the anode busbar and the first end of the soft belt connected to it remain stationary.

[0066] With the anode guide rod close to the alumina shell, the second driver is connected to the lifting joint corresponding to the anode guide rod near the alumina shell. By adjusting the clamping mechanism in contact with the anode guide rod, the clamping of the anode guide rod on the continuous anode is reduced or released. The second driver for lifting the anode guide rod is then activated, driving the lifting output shaft connected to the anode guide rod to move upward. Under the action of the connector, the non-rotating anode guide rod is moved upward along the surface of the continuous anode, controlling the distance between the anode guide rod and the alumina shell within a preset value. The second end of the flexible belt connected to the anode guide rod is also moved upward, while the anode busbar and the first end of the flexible belt connected to it remain stationary. The clamping of the anode guide rod on the continuous anode is restored, and the second driver is removed.

[0067] There is no distinction between starting the first drive and starting the second drive; they are simply used in different situations.

[0068] In the first scenario: when the tank voltage exceeds the process control range, the first driver is activated under the action of the clamping mechanism, which drives the transmission component to drive the elevator to work, causing the anode guide rod and the clamped continuous anode to move up and down synchronously. At the same time, the second end of the soft strip connected to the anode guide rod moves up and down, while the anode busbar and the first end of the soft strip connected to it remain stationary.

[0069] The second scenario: A set of anode guide rods is close to the alumina shell. The second driver is connected to the lifting joint corresponding to the anode guide rod near the alumina shell. By adjusting the clamping mechanism in contact with the anode guide rod, the second driver is activated when the clamping of the anode guide rod on the continuous anode is reduced or released. This drives the lifting output shaft connected to the anode guide rod to move upward. Under the action of the connector, the non-rotating anode guide rod moves upward along the surface of the continuous anode, controlling the distance between the anode guide rod and the alumina shell within a preset value. It also drives the second end of the flexible belt connected to the anode guide rod to move upward, while the anode busbar and the first end of the flexible belt connected to it remain stationary. The clamping of the anode guide rod on the continuous anode is restored, the connection between the anode guide rod and the second driver is disconnected, and the second driver is removed.

[0070] The third scenario: Several or all groups of anode guide rods are close to the alumina shell. The second driver is connected to the lifting joint corresponding to at least one (group) of anode guide rods. By adjusting the clamping mechanism in contact with the anode guide rods, the second driver is activated to reduce or release the clamping of the anode guide rods on the continuous anode. This drives the lifting output shaft connected to the anode guide rods to move upward. Under the action of the connector, the non-rotating anode guide rods are moved upward along the surface of the continuous anode, controlling the distance between the anode guide rods and the alumina shell within a preset value. The second end of the flexible belt connected to the anode guide rods is also moved upward, while the anode busbar and the first end of the flexible belt connected to it remain stationary. The clamping of the anode guide rods on the continuous anode is restored, and the connection between the anode guide rods and the second driver is disconnected.

[0071] Next, following the above method, the distance between the next set of anode guide rods and the alumina shell is controlled within a preset value; and the second end of the soft strip connected to the anode guide rod is moved upward, while the anode busbar and the first end of the soft strip connected to it remain stationary; the clamping of the anode guide rod on the continuous anode is restored, and the connection between the anode guide rod and the second driver is disconnected; after all the anode guide rods to be lifted are moved to the designated position, the second driver is removed, so that the anode guide rod continuously clamps the continuous anode.

[0072] There is no restriction on the order of the above steps.

[0073] The distance between the anode guide rod and the alumina shell refers to the vertical distance between the lower edge of the anode guide rod and the upper surface of the alumina shell.

[0074] The electrode spacing is controlled between 25 and 80 mm, preferably between 40 and 50 mm.

[0075] Preferably, the preset value of the anode guide rod and the alumina shell is between 1 and 110 cm, and more preferably, the preset value is between 5 and 55 cm.

[0076] In the specific implementation, Example 1, a 160ka electrolytic cell, is equipped with three sets of continuous anodes, surrounded by a clamping frame. Each set of continuous anodes has four anode guide rods installed on both the inlet and outlet sides (located within the clamping frame). A lift is installed at the clamping frame position corresponding to each anode guide rod. Each anode guide rod is connected to the lift's output shaft via a connector with a rotator. The lift is connected to the first driver via a drive shaft and a corner steering box. Each lift's output shaft has a connector at its upper end that connects to the second driver. The anode busbar is connected to the anode guide rod via a flexible strap. The first driver controls the electrode gap and cell voltage, while the second driver controls the distance between the anode guide rod and the alumina crust. During the six months of operation of the electrolytic cell, the cell voltage was set to 3.92V on the computer and controlled by the first driver. The actual cell operating voltage was 3.91V, the current efficiency was 93.5%, and the DC power consumption per ton of aluminum was 12462kw.h. The second driver was used to control the distance between the anode guide rod and the alumina shell to 3-48cm, and the anode guide rod was lifted by 45cm.

[0077] Example 2: A 240 kA electrolytic cell is equipped with four sets of continuous anodes, surrounded by a clamping frame. Each set of continuous anodes has four anode guide rods installed on both the inlet and outlet sides (located within the clamping frame). A lift is installed at the clamping frame position corresponding to each anode guide rod. Each anode guide rod is connected to the lift's output shaft via a connector with a rotator. The lift is connected to a first driver via a drive shaft and a corner steering box. Each lift's output shaft has a connector at its upper end that connects to a second driver. The anode busbar is connected to the anode guide rods via a flexible strap. The first driver controls the electrode pitch and cell voltage, while the second driver controls the distance between the anode guide rods and the alumina crust. During the six months of operation of the electrolytic cell, the cell voltage was set to 3.92V on the computer and controlled by the first driver. The actual cell operating voltage was 3.91V, the current efficiency was 93.3%, and the DC power consumption per ton of aluminum was 12489kw.h. The second driver was used to control the distance between the anode guide rod and the alumina shell between 5 and 48cm, and the anode guide rod was lifted by 43cm.

[0078] Example 3: A 300 kA electrolytic cell is equipped with 5 sets of continuous anodes, surrounded by a clamping frame. Each set of continuous anodes has 4 anode guide rods installed on both the inlet and outlet sides (located within the clamping frame). A lift is installed at the clamping frame position corresponding to each anode guide rod. Each anode guide rod is connected to the lift's output shaft via a connector with a rotator. The lift is connected to a first driver via a drive shaft and a corner steering box. Each lift's output shaft has a connector at its upper end that connects to a second driver. The anode busbar is connected to the anode guide rods via a flexible strap. The first driver controls the electrode pitch and cell voltage, while the second driver controls the distance between the anode guide rods and the alumina crust. During the six months of operation of the electrolytic cell, the cell voltage was set to 3.92V on the computer and controlled by the first driver. The actual cell operating voltage was 3.91V, the current efficiency was 93.6%, and the DC power consumption per ton of aluminum was 12449kw.h. The second driver was used to control the distance between the anode guide rod and the alumina shell to 5-50cm, and the anode guide rod was lifted by 45cm.

[0079] Comparative example:

[0080] Example 1: A 160 kA electrolytic cell is equipped with three sets of continuous anodes, surrounded by a clamping frame. Each set of continuous anodes has four anode guide rods installed on both the inlet and outlet sides (located within the clamping frame). A lifting mechanism is installed at the clamping frame position corresponding to each anode guide rod. Each anode guide rod is connected to the output shaft of the lifting mechanism via a lifting device. The lifting mechanism is connected to the first drive unit via a clutch, steering box, drive shaft, and corner steering box. The anode busbar is connected to the anode guide rod. The first drive unit controls the electrode gap and cell voltage, as well as adjusts the distance between the anode guide rod and the alumina crust. During six months of operation, the cell voltage was set to 3.92V on the computer. Under the control of the first drive unit, the actual cell operating voltage was 3.95V, the current efficiency was 93.1%, and the DC power consumption per ton of aluminum was 12644 kWh. The distance between the anode guide rod and the alumina crust was controlled between 3 and 23 cm, and the anode guide rod lifting range was 20 cm.

[0081] Example 2: A 240 kA electrolytic cell is equipped with four sets of continuous anodes, surrounded by a clamping frame. Each set of continuous anodes has four anode guide rods installed on both the inlet and outlet sides (located within the clamping frame). A lift is installed at the clamping frame position corresponding to each anode guide rod. Each anode guide rod is connected to the output shaft of the lift via a hoist. The lift is connected to the first drive unit via a clutch, steering box, drive shaft, and corner steering box. The anode busbar is connected to the anode guide rod. The first drive unit controls the electrode pitch and cell voltage, as well as adjusts the distance between the anode guide rod and the alumina crust. During six months of operation, the cell voltage was set to 3.92V on the computer. Under the control of the first drive unit, the actual cell operating voltage was 3.95V, the current efficiency was 92.8%, and the DC power consumption per ton of aluminum was 12685 kWh. The distance between the anode guide rod and the alumina crust was controlled between 5 and 25 cm, and the anode guide rod lifting range was 20 cm.

[0082] Example 3: A 300 kA electrolytic cell is equipped with 5 sets of continuous anodes, surrounded by a clamping frame. Each set of continuous anodes has 4 anode guide rods installed on both the inlet and outlet sides (located within the clamping frame). A lift is installed at the clamping frame position corresponding to each anode guide rod. Each anode guide rod is connected to the output shaft of the lift via a hoist. The lift is connected to the first driver via a clutch, steering box, drive shaft, and corner steering box. The anode busbar is connected to the anode guide rod. The first driver controls the electrode gap and cell voltage, as well as adjusts the distance between the anode guide rod and the alumina shell. During 6 months of operation, the cell voltage was set to 3.92V on the computer. Under the control of the first driver, the actual cell operating voltage was 3.96V, the current efficiency was 92.6%, and the DC power consumption per ton of aluminum was 12744 kWh. The distance between the anode guide rod and the alumina shell was controlled between 5 and 26 cm, and the anode guide rod lifting range was 21 cm.

[0083] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A lifting device for adjusting the distance between an anode guide rod and an alumina crust, comprising at least one continuous anode, at least one clamping frame surrounding the continuous anode, a plurality of anode guide rods disposed between the clamping frame and the continuous anode, at least one clamping mechanism for contacting the anode guide rods with the continuous anode being installed on the clamping frame or the anode guide rods, and at least one lifting mechanism being provided on the clamping frame, characterized in that: The lifting mechanism includes a first drive, a second drive, and several lifting platforms. A lifting platform joint connected to the second drive is provided on the upper part of the lifting platform output shaft and / or on the drive shaft. An anode busbar is provided on the outer side of the anode guide rod, and a flexible belt connected to both is provided between the anode busbar and at least one anode guide rod.

2. The lifting device for adjusting the distance between the anode guide rod and the alumina shell according to claim 1, characterized in that: The elevator includes an output shaft. The elevator is connected to the first driver of the lifting anode guide rod and the continuous anode via a transmission component. The lower part of the elevator output shaft is connected to the anode guide rod, or the lower part of the elevator output shaft is connected to the anode guide rod via a connector. The elevator is connected to the corresponding second driver. When the second driver is running, the installed first driver remains stationary. When the first driver is running, the elevator connector is separated from the second driver.

3. The lifting device for adjusting the distance between the anode guide rod and the alumina shell according to claim 1, characterized in that: The elevator connector is matched with the second drive connector.

4. A lifting device for adjusting the distance between the anode guide rod and the alumina shell according to claim 2, characterized in that: The connector includes a first connector and a second connector. The first connector is connected to the second connector, or the first connector is connected to the second connector via a connecting plate or a rotator. The first connector is connected to the anode guide rod, or the first connector is connected to the anode guide rod via a lifting point. The second connector is connected to the elevator output shaft via a rotator, or the second connector is connected to the elevator output shaft.

5. A lifting device for adjusting the distance between the anode guide rod and the alumina shell according to claim 2, characterized in that: The anode guide rod includes a first anode guide rod, a second anode guide rod, or a first anode guide rod and a second anode guide rod. The second anode guide rod includes an upper guide rod and a lower guide rod connected to the upper guide rod. The upper guide rod is connected to the second end of the flexible strip, and the lower guide rod is connected to the first connecting member of the connector. The current on the flexible strip is conducted to the lower guide rod through the upper guide rod; or the upper guide rod is connected to the first connecting member of the connector, and the lower guide rod is connected to the second end of the flexible strip.

6. A lifting device for adjusting the distance between the anode guide rod and the alumina shell according to claim 1, characterized in that: The anode busbar includes an input-side anode busbar, an output-side anode busbar, or an input-side anode busbar and an output-side anode busbar installed around the anode guide rod. The input-side anode busbar is connected to the first end of the flexible strip, or the output-side anode busbar is connected to the first end of the flexible strip, or both the input-side anode busbar and the output-side anode busbar are connected to the first end of the flexible strip.

7. A lifting device for adjusting the distance between the anode guide rod and the alumina shell according to claim 1, characterized in that: The clamping mechanism includes a spring assembly vertically mounted on the clamping frame, a cylinder mounted on the upper end or front of the spring assembly, the spring assembly or the cylinder and spring assembly being connected to a linkage mechanism for adjusting the pressure of the anode guide rod, the linkage mechanism being connected to a roller assembly, the roller assembly contacting the anode guide rod and pressing the anode guide rod against the continuous anode.

8. A lifting device for adjusting the distance between the anode guide rod and the alumina shell according to claim 1, characterized in that: The clamping frame includes an upper beam, a lower beam, and a support member, with the support member connecting the upper beam and the lower beam; or the upper beam and the lower beam are connected with a support member, and at least one window is provided between the upper beam, the lower beam, and the support member or on the support member.

9. A lifting device for adjusting the distance between the anode guide rod and the alumina shell according to claim 8, characterized in that: The clamping frame is mounted above the cathode of the electrolytic cell via several support pillars.

10. A lifting device for adjusting the distance between the anode guide rod and the alumina shell according to claim 8, characterized in that: The second end of the flexible strip passes over the top surface of the upper beam of the clamping frame and connects to the anode guide rod, or the second end of the flexible strip passes over the bottom surface of the lower beam of the clamping frame and connects to the anode guide rod, or the second end of the flexible strip passes through the window on the clamping frame and connects to the anode guide rod.

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