Tool trolley for aluminum electrolysis

Abstract

The invention relates to a tool trolley for aluminum electrolysis, which comprises a rotary trolley and an aluminum discharging trolley, the rotary trolley comprises a frame, a rotary disc, and a crust breaking device, a slag salvaging device and a pole changing device which are arranged on the rotary disc; the anode changing device comprises a lifting frame, an anode clamping frame, a clamp mechanism, a straightening mechanism and a rotating head mechanism; the clamp mechanism comprises a positioning frame connected with the anode clamping frame, a clamping arm which is movably connected with the positioning frame and is provided with a clamping piece, and a first driving piece which is connected with the positioning frame and is used for driving the clamping piece to be inserted into or withdrawn from the hoisting hole of the anode rod; and the straightening mechanism comprises a second driving piece connected with the positioning frame and a straightening assembly, and the second driving piece is used for driving the straightening assembly to abut against the two side faces, provided with the hoisting holes, of the anode rod part. The straightening mechanism has the function of adjusting the alignment of the clamping piece and the anode rod, so that an operator can lift the anode rod without accurate alignment, the clamping piece does not collide with the anode rod, and the operation difficulty of the operator is reduced.

Description

Technical Field

[0001] This invention relates to the field of aluminum electrolysis equipment, and more specifically, to a tool cart for aluminum electrolysis. Background Technology

[0002] The process of producing aluminum by electrolysis includes loading the anode into the electrolytic cell using a tool trolley, replacing the old anode in the electrolytic cell, and using the tool trolley to lift the aluminum ladle and extract the molten aluminum from the electrolytic cell. Specifically: the anode is lifted onto the electrolytic cell using the tool trolley and secured to the cell by tightening the bolts on the anode rod. When the anode is depleted and needs replacement, the tool trolley moves above the electrolytic cell where the anode needs to be replaced. A shell-breaking device breaks open the hard material formed by the electrolytic reaction inside the electrolytic cell. Then, a replacement device removes the old anode and lifts it to another location. A slag-removing device then removes the hard material and moves it to another location. Finally, a replacement device installs the new anode onto the electrolytic cell. The extraction of molten aluminum involves using an aluminum ladle to lift the aluminum ladle to the aluminum outlet of the electrolytic cell. The aluminum ladle is then used to siphon molten aluminum from the electrolytic cell, and the molten aluminum in the ladle is transferred to another location.

[0003] In the aforementioned process, whether hoisting the anode or the aluminum cladding, alignment is required by the operator. For example, the electrode-changing device needs to align the positioning frame with the anode rod. The positioning frame then descends and fits onto the anode rod, allowing it to extend into the frame. Once in position, the clamping arm of the electrode-changing device actuates, inserting the clamping element into the hoisting hole of the anode rod, thus clamping it. The bolts can then be removed using a screwdriver, allowing the anode to be lifted and replaced with a new one. However, to ensure good positioning and prevent the clamping element from colliding with the anode rod, the positioning frame's entrance, even with a guide section, is only slightly larger than the anode rod's outer dimensions. Whether the operator is in the overhead crane's control room or standing on the ground, there is a certain distance and obstruction between the operator and the top of the anode, making alignment difficult. Efficient alignment requires highly experienced operators. Similarly, the aluminum ladles are usually lifted by electric hoists when the aluminum trolley is being moved. However, electric hoists are prone to some deviation after being moved, which makes it difficult for the hook to catch on the aluminum ladle during the swing of the electric hoist. After the aluminum ladle is lifted, the swing of the aluminum ladle due to inertia also makes it difficult for the aluminum ladle to be aligned with the aluminum outlet. This means that only operators with rich operating experience can perform the alignment operation efficiently. Summary of the Invention

[0004] To overcome the problem of difficult alignment operation of tool trolleys in the prior art, the present invention provides a tool trolley for aluminum electrolysis, which reduces the difficulty of alignment operation during the working process and makes it easier for operators to operate and control.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a tool trolley for aluminum electrolysis, comprising a rotary car and an aluminum tapping car mounted on a crane, both of which move along the longitudinal direction of the crane. The rotary car includes a frame, a rotary table mounted on the frame, and a shell-breaking device, a slag-removing device, and an electrode-changing device mounted on the rotary table. The aluminum tapping car includes a seat and a first hoisting device and a second hoisting device mounted on the seat, the first hoisting device and the second hoisting device being used to lift the aluminum ladle and tilt it. The electrode-changing device includes a lifting frame connected to the rotary table and a lifting frame connected to the rotary table. The anode clamping frame, clamping mechanism, aligning mechanism, and rotating head mechanism are connected to the lifting frame and move up and down along it. The clamping mechanism includes a positioning frame connected to the anode clamping frame, a clamping arm movably connected to the positioning frame and provided with a clamping member, and a first driving member connected to the positioning frame and used to drive the clamping member to insert or withdraw from the lifting hole of the anode rod. The aligning mechanism includes a second driving member connected to the positioning frame and an aligning assembly. The second driving member is used to drive the aligning assembly to abut against the two sides of the anode rod provided with the lifting hole. The rotating head mechanism is connected to the anode clamping frame and used to tighten or loosen the bolts locking the anode rod.

[0006] In the above technical solution, the rotary car and the aluminum tapping car are installed side by side on the overhead crane, both of which can move longitudinally along the crane. When the anode needs to be replaced, the overhead crane first moves to the top of the electrolytic cell, and the rotary car moves longitudinally to the top of the slot where the anode needs to be replaced. The rotary table rotates, putting the shell-breaking device in the working position. The shell-breaking device starts and breaks up the hard material, then resets. The rotary table rotates, putting the electrode-changing device in the working position, and the lifting frame moves the positioning frame downward along the anode edge. During this process, the alignment component is positioned to abut against the two sides of the anode rod where the lifting holes are located, and the clamping parts of the clamping arm face the side of the anode rod where the lifting holes are located. When the positioning frame descends to the predetermined position, the clamping parts are aligned with the lifting holes in height, but not in the horizontal direction. At this time, the second drive unit drives the alignment component to move. Under the action of the second drive unit, the alignment component simultaneously abuts against both sides, positioning the anode rod in the middle of the alignment component. Since the anode rod is fixed to the electrolytic cell and cannot move, the position of the alignment component changes. The alignment component is connected to the positioning frame, and the clamping mechanism is also connected to the positioning frame. The alignment component then causes the positioning frame to swing, which in turn causes the clamping mechanism to swing, aligning the clamping member of the clamping mechanism with the lifting hole. Once the clamping member is aligned with the lifting hole, the first drive unit drives the clamping arm to insert the clamping member into the lifting hole. Finally, the bolts locking the anode rod are removed via the rotating head mechanism, and the anode is removed and replaced with a new one. Because the rotating head mechanism is also connected to the anode clamping frame, it can also be aligned relative to the anode rod, ensuring better alignment of the anode rod bolt position.

[0007] During the lifting of the aluminum liner, the first lifting device and the second lifting device move longitudinally along the seat. The first lifting device and the second lifting device are connected to the center and the back side of the aluminum liner, respectively. After moving to the aluminum outlet, the lifting height of the second lifting device is greater than that of the first lifting device, so that the front of the aluminum liner, that is, the side with the extraction port, tilts downward and is inserted into the aluminum outlet.

[0008] Furthermore, the alignment assembly includes two symmetrically arranged swing linkage groups on both sides of the second drive member. Each swing linkage group includes a first linkage hinged to the output end of the second drive member, a second linkage hinged to one end of the first linkage, an alignment plate connected to the other end of the second linkage, and a rotating shaft installed between the two ends of the second linkage. The rotating shaft is rotatably connected to the anode clamping frame. The alignment plate is used to abut against the side of the anode rod where a lifting hole is provided. The second drive member is a linear drive member. Since both ends of the second linkage are rotatably connected to the positioning frame, when the second drive member moves linearly, the movement of the first linkage on both sides of the second drive member will cause the second linkage to rotate around the rotatable connection point with the positioning frame, thereby causing the alignment plates to move closer or further apart. When the alignment plates move closer together, they gradually abut against the anode rod, ultimately positioning the anode rod in the middle of the alignment plate and completing centering. The clamping member is also located in the middle position between the two alignment plates or the two swinging members. Therefore, after the clamping member swings with the entire positioning frame, it can align with the lifting hole. The swing linkage assembly can also be a gear and rack assembly, a cam assembly, a helical drive assembly, or a Soren drive assembly, etc., which are mechanical components that make the swing plates move closer or further apart.

[0009] Furthermore, adjusting members are installed on both sides of the positioning frame, with one end of each adjusting member engaging with the hinge joints of the second and first connecting rods, respectively. The adjusting members are detachably and fixedly connected to the positioning frame via fasteners. By adjusting the position of the adjusting members relative to the hinge joints of the second and first connecting rods, the final state of the second connecting rod, i.e., the distance between the balancing plates in their final state, can be adjusted according to the size of the anode rod to be clamped. When the balancing plate abuts against the anode rod, one end of the adjusting member engaging with the hinge joints of the second and first connecting rods, respectively, can prevent the second connecting rod from shifting when subjected to the reaction force transmitted by the anode rod, thus preventing the anode rod from being positioned in the center of the entire swing assembly.

[0010] Furthermore, limiting plates are provided on both opposite sides of the positioning frame, and the two limiting plates and the two aligning plates form a cavity to accommodate the anode rod; the limiting plate on one side of the clamping arm has a hollow portion for the clamping member to pass through. If the positioning frame has no restriction in the direction where the anode rod has the lifting hole, the structure of the electrode switching device with only a single clamping arm and clamping member will result in a lack of restriction on one side of the anode rod, making it impossible to stably clamp the anode rod. However, after the limiting plate and the two aligning plates form a cavity to accommodate the anode rod, the limiting plate can restrict the anode rod in the direction where the lifting hole is located. When the clamping member passes through the hollow portion, the anode rod cannot leave the cavity, thus achieving stable clamping of the anode rod.

[0011] Furthermore, the positioning frame is provided with a first mounting part and a second mounting part. The first mounting part is provided with a first mounting hole and a second mounting hole. The second mounting hole is located below the first mounting hole. The axes of the first mounting hole and the second mounting hole are perpendicular to each other. The line connecting the midpoint of the first mounting hole in the horizontal direction and the axis of the second mounting hole is parallel to the vertical direction. One end of the clamping arm is installed in the first mounting hole and is rotatably connected to the positioning frame. The fixed end of the first driving member is installed on the second mounting part. The output end of the first driving member is connected to the clamping arm. The first driving member drives the clamping arm to rotate, thereby causing the clamping member to insert into or exit the lifting hole of the anode rod. The fixed end of the second driving member is installed at the second mounting hole. The swing of the swivel assembly will cause the entire swivel mechanism to swing. Because the force can also be transmitted to the positioning frame through the first drive component, and the clamping arm and the first drive component are both mounted on the first mounting part, the clamping arm can better maintain the consistency of swinging with the swivel mechanism. Furthermore, the line connecting the midpoint of the first mounting hole in the horizontal direction and the axis of the second mounting hole is parallel to the vertical direction. The swivel assembly is symmetrically mounted on both sides of the first drive component. That is, the axis of the second mounting hole actually corresponds to the middle position between the two swivel plates or the two swing components. Correspondingly, the centerline of the clamping arm installed in the first mounting hole can also correspond to the middle position between the two swivel plates or the swing components. By assembling according to this structure, the clamping component can be positioned at the middle position between the two swivel plates or the swing components.

[0012] Furthermore, the end of the limiting plate is provided with a flared portion. The flared portion can increase the inlet size of the cavity, making it easier for the positioning frame to be fitted onto the anode rod.

[0013] Furthermore, the rotating head mechanism includes a mounting base connected to the anode clamp, a drive device mounted on the mounting base, a transmission shaft rotatably connected to the mounting base, a universal joint connected to the end of the transmission shaft, and a universal rotating head connected to one end of the universal joint. With the cooperation of the universal joint and the universal rotating head, even if the universal rotating head is slightly offset relative to the bolt of the anode rod, it can still be fitted onto the bolt. Combined with the alignment mechanism driving the anode clamp to center relative to the anode rod, the offset between the universal rotating head and the bolt of the anode rod becomes very small, ultimately allowing the universal rotating head of the rotating head mechanism to easily fit onto the bolt and tighten it.

[0014] Furthermore, the lifting frame includes a frame body and a lifting device mounted on the frame body; the anode clamping frame is slidably connected to the frame body in the vertical direction, and the lifting device drives the anode clamping frame to slide on the frame body. The frame body is used to connect to the tool trolley on the electrolysis crane, and the lifting device drives the anode clamping frame to descend, thereby lowering the clamping mechanism, the aligning mechanism, and the rotating head mechanism to their corresponding working positions and lifting the anode rod.

[0015] Furthermore, the first hoisting device includes a first traveling seat, a third driving member mounted on the first traveling seat and driving the first traveling seat to move along the vehicle seat, and a first electric hoist device mounted on the first traveling seat; the second hoisting device includes a second traveling seat, a fourth driving member mounted on the second traveling seat and driving the second traveling seat to move along the vehicle seat, and a second electric hoist device mounted on the second traveling seat.

[0016] Furthermore, the axes of the unwinding shafts of the first and second electric hoists are perpendicular to the traveling direction of the aluminum unloading vehicle. During the movement of the first and second electric hoists, the hooks of both hoists swing in the longitudinal direction, and the connection point between the hook and the aluminum ladle is also in this direction. This means that even if the hook swings at a certain angle in the longitudinal direction, it can still connect with the aluminum ladle. Similarly, the same principle applies when the aluminum ladle's extraction port needs to be inserted into the aluminum outlet; longitudinal swinging still allows the extraction port to align with the outlet. Conversely, lateral swinging will cause misalignment, i.e., misalignment between the hook and the aluminum ladle, and misalignment between the extraction port and the outlet.

[0017] Furthermore, the rotary table is also equipped with an ejector device for creating a negative pressure inside the aluminum ladle. The ejector device includes a mounting frame connected to the rotary table, a winch mechanism and a fixed frame mounted on the mounting frame, a movable frame slidably connected to the fixed frame, a fixed base connected to the movable frame, and an ejector and a reel containing an air hose, all mounted on the fixed base; one end of the air hose is connected to the fluid outlet of the ejector. The movable frame is fitted over the fixed frame and slidably connected to the fixed frame via a pulley assembly. When extracting molten aluminum from the aluminum ladle, a certain negative pressure needs to be created inside the ladle. At this time, the rotary table rotates to bring its ejector device to the working position, the winch mechanism lowers the movable frame, and the movable frame moves downwards along the fixed frame via the pulley assembly. After reaching the working position, the operator pulls out the air hose and connects it to the aluminum ladle, activating the ejector to create negative pressure in the aluminum ladle. After extracting the molten aluminum, the connection between the air hose and the aluminum ladle is disconnected, and the ejector device resets. The connection between the air hose and the aluminum ladle can be performed close to the ground, making alignment easy.

[0018] Compared with the prior art, the beneficial effects are: (1) When the anode rod is hoisted by the pole changing device, since the aligning mechanism has the function of adjusting the clamping part and the anode rod, the operator can set the size of the aligning mechanism and the positioning frame to have a large distance between them and the anode rod, so that the operator can hoist the anode rod without precise alignment and without causing the clamping part to collide with the anode rod, thus reducing the difficulty of operation for the operator. (2) With the setting of the first hoisting device and the second hoisting device, even if the first hoisting device and the second hoisting device swing during the process of aligning with the aluminum tundish and aligning the aluminum tundish extraction port with the aluminum outlet, the alignment of the connection between the hook and the aluminum tundish and the alignment of the aluminum tundish extraction port and the aluminum outlet can be achieved with lower operation difficulty. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a tool cart for aluminum electrolysis according to the present invention; Figure 2 This is a side view of a tool cart for aluminum electrolysis according to the present invention. Figure 3 This is a schematic diagram of the structure of a tool cart for aluminum electrolysis according to the present invention; Figure 4 yes Figure 3 A magnified view of a portion of position A; Figure 5 This is an exploded view of the clamping structure and the aligning mechanism of the present invention; Figure 6 This is a schematic diagram of the positioning frame of the present invention; Figure 7 This is a structural schematic diagram of the positioning frame of the present invention from the bottom view; Figure 8 yes Figure 3 A magnified view of position B; Figure 9 This is a schematic diagram of the structure of the first hoisting device of the present invention; Figure 10 This is a schematic diagram of the structure of the second hoisting device of the present invention; Figure 11 This is a schematic diagram of the ejector device of the present invention; Figure 12 yes Figure 11 A cross-sectional view along the CC direction; Figure 13 This is a schematic diagram of the anode rod.

[0020] In the diagram, 100 – rotary car; 200 – aluminum unloading car; 210 – car seat; 220 – first hoisting device; 221 – first traveling seat; 222 – third drive unit; 223 – first electric hoist device; 230 – second hoisting device; 231 – second traveling seat; 232 – fourth drive unit; 233 – second electric hoist device; 240 – unwinding shaft; 300 – car frame; 400 – rotary table; 500 - Shell-breaking device; 600- Slag-removing device; 700- Anode-changing device; 710- Lifting frame; 711- Frame body; 712- Lifting device; 720- Anode clamping frame; 730- Clamping mechanism; 731- Positioning frame; 7311- Limiting plate; 7312- Hollowed-out part; 7313- Flared part; 7314- Limiting plate; 7315- Cavity; 732- Clamping element; 733- Clamping arm; 734- 735 - First driving component; 736 - Adjusting component; 736 - First mounting part; 7361 - First mounting hole; 7362 - Second mounting hole; 737 - Second mounting part; 740 - Alignment mechanism; 741 - Second driving component; 742 - Alignment assembly; 7421 - First connecting rod; 7422 - Second connecting rod; 7423 - Alignment plate; 7424 - Rotating shaft; 750 - Rotating head mechanism; 751 - Mounting base; 752 – Drive unit; 753 – Drive shaft; 754 – Universal joint; 755 – Universal swivel head; 800 – Ejector device; 810 – Mounting bracket; 820 – Hoisting mechanism; 830 – Fixed bracket; 840 – Moving bracket; 850 – Fixed base; 860 – Ejector; 870 – Reel; 880 – Pulley assembly; 881 – Pulley frame; 882 – Pulley; 900 – Anode rod; 910 – Lifting hole. Detailed Implementation

[0021] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0022] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0025] The technical solution of the present invention will be further described in detail below through specific embodiments and with reference to the accompanying drawings: Example 1 like Figure 1-7The illustration shows an embodiment 1 of a tool trolley for aluminum electrolysis, comprising a rotary trolley 100 and an aluminum discharge trolley 200 mounted on a crane. Both the rotary trolley 100 and the aluminum discharge trolley 200 move along the longitudinal direction of the crane. The rotary trolley 100 includes a frame 300, a rotary table 400 mounted on the frame 300, and a shell-breaking device 500, a slag-removing device 600, and an electrode-changing device 700, all mounted on the rotary table 400. The aluminum discharge trolley 200 is characterized by comprising a seat 210 and a first hoisting device 220 and a second hoisting device 230 mounted on the seat 210. The first hoisting device 220 and the second hoisting device 230 are used to lift the aluminum ladle and tilt it. The electrode-changing device 700 includes a lifting frame 710 connected to the rotary table 400, and a lifting device 710 connected to and extending along the lifting frame. The anode clamping frame 720, clamping mechanism 730, aligning mechanism 740, and rotating head mechanism 750 are movable up and down. The clamping mechanism 730 includes a positioning frame 731 connected to the anode clamping frame 720, a clamping arm 733 movably connected to the positioning frame 731 and provided with a clamping member 732, and a first driving member 734 connected to the positioning frame 731 and used to drive the clamping member 732 to insert or withdraw into the lifting hole 910 of the anode rod 900. The aligning mechanism 740 includes a second driving member 741 connected to the positioning frame 731 and an aligning assembly 742. The second driving member 741 is used to drive the aligning assembly 742 to abut against the two sides of the anode rod 900 that are not provided with the lifting hole 910. The rotating head mechanism 750 is connected to the anode clamping frame 720 and used to tighten or loosen the bolts locking the anode rod 900.

[0026] like Figure 5 As shown, the alignment assembly 742 includes two first connecting rods 7421, two second connecting rods 7422, and two alignment plates 7423. The two first connecting rods 7421 are located on both sides of the second driving member 741, with one end hinged to the output end of the second driving member 741. One end of each of the two second connecting rods 7422 is hinged to the other end of the first connecting rods 7421. The alignment plates 7423 are respectively installed on the other end of the second connecting rods 7422. The alignment plates 7423 are used to abut against the two sides of the anode rod 900 where the lifting hole 910 is provided. The two ends of the two second connecting rods 7422 are rotatably connected to the positioning frame 731 through a rotating shaft 7424. The second driving member 741 is a linear driving member, and in this embodiment, the second driving member 741 is a hydraulic cylinder. Adjustable members 735 are installed on both sides of the positioning frame 731. One end of the adjustable member 735 is respectively attached to the hinge joint of the second connecting rod 7422 and the first connecting rod 7421. The adjustable member 735 is detachably fixed to the positioning frame 731 by fasteners. In this embodiment, the two first connecting rods 7421 are symmetrically arranged on both sides of the second driving member 741, and the two swing members and the two balancing plates 7423 are also symmetrically arranged.

[0027] like Figure 5 and Figure 6 As shown, the positioning frame 731 is provided with a first mounting part 736 and a second mounting part 737. The first mounting part 736 is provided with a first mounting hole 7361 and a second mounting hole 7362. The second mounting hole 7362 is located below the first mounting hole 7361. The axes of the first mounting hole 7361 and the second mounting hole 7362 are perpendicular to each other. The line connecting the midpoint of the first mounting hole 7361 in the horizontal direction and the axis of the second mounting hole 7362 is parallel to the vertical direction. One end of the clamping arm 733 is installed in the first mounting hole 7361 and is rotatably connected to the positioning frame 731. The fixed end of the first driving member 734 is installed on the second mounting part 737, and the output end of the first driving member 734 is connected to the clamping arm 733. The fixed end of the second driving member 741 is installed at the second mounting hole 7362. In this embodiment, the first driving member 734 is a cylinder.

[0028] In this embodiment, limiting plates 7311 are provided on both opposite sides of the positioning frame 731. The two limiting plates 7311 and the two aligning plates 7423 form a cavity 7315 for accommodating the anode rod 900. The limiting plate 7311 located on one side of the clamping arm 733 is provided with a hollow portion 7312 for the clamping member 732 to pass through. The end of the limiting plate 7311 is provided with a flared portion 7313. The flared portion 7313 can increase the entrance size of the cavity 7315, making it easier for the positioning frame 731 to be fitted onto the anode rod 900.

[0029] In this embodiment, the lifting frame 710 includes a frame body 711 and a lifting device 712 mounted on the frame body 711; the anode clamping frame 720 is slidably connected to the frame body in the vertical direction, and the lifting device 712 drives the anode clamping frame 720 to slide on the frame body. The frame body is used to connect to the tool trolley on the electrolysis crane. The lifting device 712 drives the anode clamping frame 720 to descend, thereby lowering the clamping mechanism 730, the aligning mechanism 740, and the rotating head mechanism 750 to their corresponding working positions and lifting the anode rod 900. The lifting device is a hydraulic cylinder or a pneumatic cylinder.

[0030] In this embodiment, the rotating head mechanism 750 includes a mounting base 751 connected to the anode clamp 720, a drive device 752 mounted on the mounting base 751, a transmission shaft 753 rotatably connected to the mounting base 751, a universal joint 754 connected to the end of the transmission shaft 753, and a universal rotating head 755 connected to one end of the universal joint 754. With the cooperation of the universal joint 754 and the universal rotating head 755, the universal rotating head 755 can be fitted onto the bolt even if it is slightly offset relative to the bolt of the anode rod 900. Combined with the alignment mechanism 740 driving the anode clamp 720 to center relative to the anode rod 900, the offset between the universal rotating head 755 and the bolt of the anode rod 900 becomes very small, ultimately allowing the universal rotating head 755 of the rotating head mechanism 750 to easily fit onto the bolt and tighten it.

[0031] The working principle or workflow of this embodiment is as follows: In the prior art, the electrode switching device 700, the shell-breaking device 500, and the slag-removing device 600 can be offset by a certain angle relative to the rotary table 400, generally controlled at around 20 degrees. That is, the anode clamping frame 720 in this embodiment can be deflected under the action of external force.

[0032] The installation position of the adjusting member 735 is adjusted according to the dimensions of the anode rod 900 and locked with fasteners. The adjustment involves the distance the adjusting member 735 extends into the positioning frame 731, ensuring that when the balancing plate 7423 abuts against the anode rod 900, one end of the adjusting member 735 is engaged with the hinge joints of the second connecting rod 7422 and the first connecting rod 7421, respectively. The adjusting member 735 is also symmetrically arranged along the axis of the second drive member and remains symmetrical after adjustment. This prevents the second connecting rod 7422 from shifting under the reaction force transmitted by the anode rod 900, thus preventing the anode rod 900 from being positioned in the center of the entire swing assembly.

[0033] The rotary car 100 and the aluminum tapping car 200 are installed side-by-side on the overhead crane, both capable of moving longitudinally along the crane. When anode replacement is required, the overhead crane first moves to above the electrolytic cell. The rotary car 100 then moves longitudinally to above the slot where the anode needs replacement. The rotary table 400 rotates, positioning the shell-breaking device 500 in its working position. The shell-breaking device 500 is activated and breaks up hard objects, then resets. The rotary table 400 rotates, positioning the electrode-changing device 700 in its working position. The lifting frame 710 moves the positioning frame 731 downwards along the anode edge, allowing the anode rod 900 to enter the cavity 7315 formed by the two limiting plates 7311 and the two aligning plates 7423, and move downwards along the anode rod until it reaches the preset position. This embodiment increases the inlet size of the cavity 7315 by setting the initial distance between the flared portion 7313 and the aligning plate 7423 to be significantly larger than the size of the anode rod 900, making it easier for the positioning frame 731 to be fitted onto the anode rod 900. In this embodiment, as... Figure 7 As shown, by setting a limiting plate 7314 on the positioning frame 731, the anode rod 900 reaches the preset position when it touches the limiting plate 7314, and the operator stops the movement of the anode clamping frame 720.

[0034] After the anode clamp 720 is moved into place, the two aligning plates 7423 are located on the side of the anode rod 900 where the lifting hole 910 is provided, while the two limiting plates 7311 are located on the other side. Since both ends of the second connecting rod 7422 are rotatably connected to the positioning frame 731, when the second driving member 741 moves linearly, the movement of the first connecting rod 7421 on both sides of the second driving member 741 will cause the second connecting rod 7422 to rotate around the rotatable connection with the positioning frame 731, thereby causing the aligning plates 7423 to move closer or further apart. When the aligning plates 7423 move closer together, they will gradually abut against the anode rod 900. Since the anode rod 900 is fixed to the electrolytic cell and cannot move, the position of the aligning assembly 742 will change, ultimately causing the anode rod 900 to be located in the middle of the aligning plate 7423 and completed. Both the clamping arm 733 and the first driving member 734 are mounted on the first mounting part 736. The aligning component 742 will cause the positioning frame 731 to swing, and the swing of the positioning frame 731 will also cause the clamping mechanism 730 to swing, and the movement of the three can be kept consistent. Since the line connecting the midpoint of the first mounting hole 7361 in the horizontal direction and the axis of the second mounting hole 7362 is parallel to the vertical direction, the aligning component 742 is symmetrically mounted on both sides of the first driving member 734. That is, the axis of the second mounting hole 7362 actually corresponds to the middle position between the two aligning plates 7423 or the two swinging members. Correspondingly, the center line of the clamping arm 733 installed in the first mounting hole 7361 can also correspond to the middle position between the two aligning plates 7423 or the two swinging members. According to this structure, the clamping member 732 can be positioned at the middle position between the two aligning plates 7423 or the two swinging members. Therefore, after the anode rod 900 and the swing mechanism are aligned, the positioning frame 731 and the clamping mechanism 730 in the mechanical structure are also aligned with the anode rod 900. This is reflected in the fact that the clamping member 732 will gradually align with the lifting hole 910 until it is completely aligned as the aligning component 742 moves.

[0035] Once the clamping member 732 is aligned with the lifting hole 910, the anode rod 900 is confined within the cavity 7315 and clamped by the aligning plate 7423. The first driving member 734 drives the clamping arm 733 to swing, causing the clamping member 732 to pass through the hollow part 7312 and insert into the lifting hole 910. The anode rod 900 cannot detach from the cavity 7315, thus achieving stable clamping of the anode rod 900. The bolts locking the anode rod 900 are then removed via the rotating head mechanism 750, and the anode is removed and replaced with a new one. Since the rotating head mechanism 750 is also connected to the anode clamping frame 720, it can also be aligned relative to the anode rod 900, better aligning the position of the bolts on the anode rod 900. Finally, the anode rod 900 is lifted, and a new anode is replaced.

[0036] The beneficial effects of this embodiment are as follows: When the anode rod 900 is hoisted by the electrode switching device 700, since the alignment mechanism 740 has the function of adjusting the clamping member 732 and the anode rod 900 for alignment, the operator can set the size of the alignment mechanism 740 and the positioning frame 731 to have a large distance between them and the anode rod 900. This allows the operator to hoist the anode rod 900 without precise alignment and prevents the clamping member 732 from colliding with the anode rod 900, thus reducing the difficulty of operation for the operator.

[0037] Example 2 Embodiment 2 of a tool trolley for aluminum electrolysis, based on Embodiment 1, differs from Embodiment 1 in that the first hoisting device 220 includes a first traveling seat 221, a third driving member 222 mounted on the first traveling seat 221 and driving the first traveling seat 221 to move along the trolley seat 210, and a first electric hoist device 223 mounted on the first traveling seat 221; the second hoisting device 230 includes a second traveling seat 231, a fourth driving member 232 mounted on the second traveling seat 231 and driving the second traveling seat 231 to move along the trolley seat 210, and a second electric hoist device 233 mounted on the second traveling seat 231. The axis of the unwinding shaft 240 of the first electric hoist device 223 and the second electric hoist device 233 is perpendicular to the traveling direction of the aluminum unloading trolley 200.

[0038] The working principle or workflow of this embodiment is as follows: Both the third driving component 222 and the fourth driving component 232 are motors and transmission mechanisms, and the transmission structure can be a gear structure. The third driving component 222 drives the first traveling seat 221 to move on the carriage seat 210, and the fourth driving component drives the second traveling seat 231 to move on the carriage seat 210. During the movement of the first electric hoist device 223 and the second electric hoist device 233 following the first traveling seat 221 and the second traveling seat 231, the hooks of the first electric hoist device 223 and the second electric hoist device 233 swing in the longitudinal direction, and the connection point between the hook and the aluminum package is also in this direction. That is, even if the hook swings at a certain angle in the longitudinal direction, it can still connect with the connection point of the aluminum package. Similarly, when the aluminum package's extraction port needs to be inserted into the aluminum outlet, the same principle applies; the longitudinal swing still allows the extraction port of the aluminum package to align with the aluminum outlet. Conversely, if a lateral swing occurs, misalignment will occur, i.e., the hook and the aluminum package will be misaligned, and the extraction port of the aluminum package will be misaligned with the aluminum outlet.

[0039] The beneficial effects of this embodiment are: the arrangement of the first hoisting device 220 and the second hoisting device 230 is such that even if the first hoisting device 220 and the second hoisting device 230 swing during the process of aligning the aluminum liner and aligning the aluminum liner extraction port with the aluminum outlet, the alignment of the connection between the hook and the aluminum liner and the alignment of the aluminum liner extraction port and the aluminum outlet can be achieved with low operational difficulty.

[0040] The remaining features and working principles of this embodiment are the same as those of Embodiment 2.

[0041] Example 3 An embodiment 3 of a tool cart for aluminum electrolysis, based on embodiment 1 or 2, differs from embodiment 1 or 2 in that an ejector device 800 for creating a negative pressure inside the aluminum ladle is also installed on the rotary table 400. The ejector device 800 includes a mounting frame 810 connected to the rotary table 400, a hoisting mechanism 820 and a fixed frame 830 mounted on the mounting frame 810, a movable frame 840 slidably connected to the fixed frame 830, a fixed base 850 connected to the movable frame 840, an ejector 860 mounted on the fixed base 850, and a reel 870 equipped with an air pipe; one end of the air pipe is connected to the fluid outlet of the ejector 860. The movable frame 840 is fitted around the fixed frame 830 and slidably connected to the fixed frame 830 via a pulley assembly 880.

[0042] In this embodiment, the pulley assembly 880 includes a pulley frame 881 connected to the outer surface of the movable frame 840 and a pulley 882 rotatably connected to the pulley frame 881. The movable frame 840 is connected to the fixed frame 830 through the pulley 882.

[0043] The working principle or workflow of this embodiment is as follows: When extracting molten aluminum from the aluminum ladle, a certain negative pressure needs to be formed inside the ladle. At this time, the rotary table 400 rotates, causing its ejector device 800 to reach the working position. The hoisting mechanism 820 lowers the moving frame 840, which moves downward along the fixed frame 830 via the pulley assembly 880. After reaching the working position, the operator pulls out the air hose and connects it to the aluminum ladle, activating the ejector 860 to create negative pressure in the aluminum ladle. After extracting the molten aluminum, the connection between the air hose and the aluminum ladle is disconnected, and the ejector device 800 resets. The connection between the air hose and the aluminum ladle can be made close to the ground, making alignment and connection easy.

[0044] Example 4 An embodiment 4 of a tool cart for aluminum electrolysis, based on embodiment 2, differs from embodiment 2 in that the limiting plate 7314 on the positioning frame 731 is equipped with a sensing device for sensing the anode rod 900 into position, and the positioning frame 731 is equipped with a camera for identifying the position of the anode rod 900. The sensing device is electrically connected to the controller of the tool cart, and the first drive member 734 and the second drive member 741 are also electrically connected to the controller. The rotating head mechanism 750 is also electrically connected to the controller.

[0045] The second traveling seat 231 is equipped with a distance measuring sensor for measuring the distance between itself and the first traveling seat 221. The distance measuring sensor is electrically connected to the controller. The motors of the third drive unit 222 and the fourth drive unit are electrically connected to the controller.

[0046] In this embodiment, after the positioning frame 731 moves along the anode rod 900 to a preset position, the sensing device can emit an electrical signal. Upon receiving the electrical signal, the controller stops the downward movement of the anode clamping frame 720 and starts the action of the first driving member 734. When the second driving member 741 reaches its position, it sends an electrical signal to the controller. Upon receiving the signal that the second driving member 741 has completed its action, the controller starts the first driving member 734, causing the clamping member 732 to be inserted into the lifting hole 910. Finally, the rotating head mechanism 750 is activated to remove the bolts and reset the anode clamping frame 720, realizing the automatic lifting of the old anode during anode replacement.

[0047] After the first traveling bracket 221 moves above the aluminum liner, the second traveling bracket 231 begins to move until the distance between the second traveling bracket 231 and the first traveling bracket 221 reaches a preset value, which is the longitudinal distance between the two lifting points of the aluminum liner. At this point, the controller stops the fourth drive unit. This ensures that the longitudinal distance between the first electric hoist 223 and the second electric hoist is equal to the longitudinal distance between the two lifting points of the aluminum liner. In other words, it only requires aligning the hook on the first traveling bracket 221 with the lifting point of the aluminum liner, and the corresponding hook on the second traveling bracket 231 is also aligned with the other lifting point of the aluminum liner, reducing the alignment difficulty by half.

[0048] The sensing device in this embodiment can be a pressure sensor, an infrared ranging sensor, an ultrasonic sensor, a limit switch, or a proximity switch, etc. The ranging sensor in this embodiment can be either an infrared ranging sensor or an ultrasonic ranging sensor.

[0049] Example 5 An embodiment of a control method for a working trolley used in aluminum electrolysis, based on any one of the tool trolleys in embodiments 2-3, includes changing the anode and hoisting the aluminum ladle.

[0050] Replacing the anode involves the following steps: Step 1: Lower the alignment mechanism 740 and the clamping mechanism 730 along the anode rod 900 to the preset position; Step 2: Align the clamping arm 733 of the clamping mechanism 730 with the lifting hole 910 of the anode rod 900 by the alignment mechanism 740. Step 3: The clamping part 732 of the drive clamping arm 733 is inserted into the lifting hole 910 of the anode rod 900; Step 4: Remove the bolts locking the anode rod 900 from the rotating head mechanism 750; Step 5: Remove the anode rod 900 and replace it with a new anode rod 900.

[0051] The lifting and transporting of aluminum ladles includes the following steps: Step 1: Move the first hoisting device 220 above the first hoisting point of the aluminum bag, and move the second hoisting device 230 above the second hoisting point of the aluminum bag; the first hoisting point is located at the center of the top of the aluminum bag, and the second hoisting point is located on the side of the aluminum bag away from the extraction port.

[0052] Step 2: Lower the hook of the first hoisting device 220 and connect it to the first hoisting point; lower the hook of the second hoisting device 230 and connect it to the second hoisting point. Step 3: Lift the aluminum cladding, ensuring that the lifting height of the second lifting device 230 is greater than that of the first lifting device 220; Step 4: Move the first hoisting device 220 and the second hoisting device 230 synchronously to move the aluminum cladding to the aluminum outlet and insert the extraction port into the aluminum outlet.

[0053] The working principle of this embodiment is as follows: The alignment mechanism 740 and the clamping mechanism 730 descend along the anode rod 900. The alignment mechanism 740 can also contact the anode rod 900. When the alignment mechanism 740 and the clamping mechanism 730 descend to a preset position along the anode rod 900, they stop descending. At this time, the alignment mechanism 740 operates. Since the anode rod 900 is fixed to the electrolytic cell, the alignment mechanism 740 drives the clamping member 732 of the clamping arm 733 to align with the lifting hole 910 of the anode rod 900, so that the clamping member 732 can be inserted into the lifting hole 910 of the anode rod 900 without colliding with the anode rod 900. Before descending along the anode rod 900, the alignment mechanism 740 can be at a large distance from the anode rod 900. Even if accurate alignment is not possible, the alignment mechanism 740 and the clamping mechanism 730 can still descend along the anode rod 900, reducing the difficulty of operation for the operator.

[0054] The beneficial effects of this embodiment are as follows: Using this electrode-switching method, the operator can easily operate the electrode-switching device 700 to be fitted onto the anode rod 900 without precise alignment. Before clamping the anode rod 900, the position of the clamping arm 733 relative to the anode rod 900 is aligned by driving the alignment mechanism 740, so that the clamping member 732 of the clamping arm 733 can be aligned with the lifting hole 910 of the anode rod 900. When the clamping member 732 is inserted into the lifting hole 910, it will not collide with the anode rod 900. Ultimately, this reduces the difficulty of operation for the operator and avoids collision between the clamping member 732 and the anode rod 900.

[0055] Example 6 Another embodiment of a control method for a working trolley for aluminum electrolysis, based on the tool trolley of embodiment 4, includes anode replacement and aluminum ladle hoisting.

[0056] Replacing the anode involves the following steps: Step 1: Identify the position of the anode rod 900 using a camera and position the positioning frame 731 above the anode rod 900; start the anode clamping frame 720 to move downwards, and after the straightening mechanism 740 and the clamping mechanism 730 descend along the anode rod 900 to the preset position, trigger the sensing device of the limit plate 7314; Step 2: After receiving the signal from the sensing device, the second drive unit 741 is activated, and the alignment mechanism 740 moves to align the clamping member 732 of the clamping arm 733 of the clamping mechanism 730 with the lifting hole 910 of the anode rod 900. Step 3: After receiving the action completion signal of the second driving component 741, drive the first driving component 734 to drive the clamping component 732 of the clamping arm 733 to insert into the lifting hole 910 of the anode rod 900; Step 4: After receiving the signal from the first driving component 734, the driving rotating head mechanism 750 removes the bolts locking the anode rod 900; Step 5: After receiving the action completion signal from the first drive component 734, the anode clamp 720 is reset, the anode rod 900 is lifted, and a new anode rod 900 is replaced.

[0057] The lifting and transporting of aluminum ladles includes the following steps: Step 1: Start the third drive unit 222 to move the first traveling seat 221 on the seat 210 until it reaches above the first lifting point of the aluminum cladding; the first lifting point is located at the center of the top of the aluminum cladding.

[0058] Step 2: Activate the fourth drive unit. The second traveling seat 231 moves on the seat 210 toward the first traveling seat 221 until the ranging sensor detects that the distance between the first traveling seat 221 and the second traveling seat 231 has reached the preset distance, and then stop the fourth drive unit. Step 3: Lower the hook of the first electric hoist device 223 and connect it to the first hoisting point; lower the hook of the first electric hoist device 223 and connect it to the second hoisting point; the second hoisting point is located on the side of the aluminum liner away from the extraction port.

[0059] Step 3: Lift the aluminum cladding, ensuring that the lifting height of the second lifting device 230 is greater than that of the first lifting device 220; Step 4: Move the first hoisting device 220 and the second hoisting device 230 synchronously to move the aluminum cladding to the aluminum outlet and insert the extraction port into the aluminum outlet.

[0060] In this embodiment, a camera can be mounted at the end of the positioning frame 731. The camera cannot accurately identify the position of the anode rod 900, which typically leads to the switching device 700 failing to meet the alignment requirements of the anode rod 900. Specifically, in the prior art, using a camera for positioning causes the switching device 700 to collide with the anode rod 900 during descent. However, because the cavity 7315 of the switching device 700 in this embodiment for accommodating the anode rod 900 has a larger inlet, the positioning frame 731 can still be fitted onto the anode rod 900 even if it is not perfectly aligned. Furthermore, by sensing the anode rod 900's arrival signal and controlling other power components via a controller, the old anode can be automatically lifted during the anode switching process, improving automation and reducing the experience requirements for operators.

[0061] In this embodiment, the distance sensor can be installed on the side of the second traveling seat 231 close to the first traveling seat 221. The distance sensor controls the distance between the first traveling seat 221 and the second traveling seat 231. It is only necessary to align the first traveling seat 221 with the first lifting point of the aluminum cladding to assist the second traveling seat 231 in aligning with the second lifting point, thereby reducing the difficulty of alignment operation during the lifting of the aluminum cladding.

[0062] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A tool trolley for aluminum electrolysis, comprising a rotary car (100) and an aluminum tapping car (200) for installation on a crown block, the rotary car (100) comprising a car frame (300), a rotary disc (400) installed on the car frame (300), and a crust breaking device (500), a slag skimming device (600), and a pole changing device (700) all installed on the rotary disc (400); characterized in that, The pole changing device (700) comprises a lifting frame (710) connected with the rotary disc (400), an anode clamping frame (720) connected with the lifting frame (710) and moving up and down along the lifting frame (710), a clamp mechanism (730), a righting mechanism (740) and a head rotating mechanism (750); the clamp mechanism (730) comprises a positioning frame (731) connected with the anode clamping frame (720), a clamping arm (733) movably connected with the positioning frame (731) and provided with a clamping piece (732), and a first driving piece (734) connected with the positioning frame (731) and used for driving the clamping piece (732) to insert into or exit from a lifting hole (910) of an anode rod (900); the righting mechanism (740) comprises a second driving piece (741) connected with the positioning frame (731) and a righting assembly (742), and the second driving piece (741) is used for driving the righting assembly (742) to abut against two sides of the anode rod without the lifting hole; and the head rotating mechanism (750) is connected with the anode clamping frame (720) and used for tightening or disassembling a bolt locking the anode rod.

2. A tool carriage for aluminum electrolysis according to claim 1, characterized in that, The righting assembly (742) comprises two symmetrical swing linkages arranged on two sides of the second driving piece (741), the swing linkages comprise a first linkage (7421) hinged with an output end of the second driving piece (741), a second linkage (7422) hinged with one end of the first linkage (7421), a righting plate (7423) connected with the other end of the second linkage (7422), and a rotating shaft piece (7424) installed between two ends of the second linkage (7422); the rotating shaft piece (7424) is rotationally connected with the anode clamping frame (720); the righting plate (7423) is used for abutting against the side of the anode rod part provided with the lifting hole; two sides of the positioning frame (731) are provided with adjusting pieces (735), one end of each adjusting piece (735) is fitted with the hinge position of the second linkage (7422) and the first linkage (7421) respectively; and the adjusting pieces (735) are detachably fixedly connected with the positioning frame (731) through fasteners.

3. A tool carriage for aluminum electrolysis according to claim 2, characterized in that, The positioning frame (731) is provided with a first mounting portion (736) and a second mounting portion (737), the first mounting portion (736) is provided with a first mounting hole (7361) and a second mounting hole (7362), the second mounting hole (7362) is below the first mounting hole (7361), the axes of the first mounting hole (7361) and the second mounting hole (7362) are perpendicular to each other, and the line connecting the midpoint of the first mounting hole (7361) in the horizontal direction and the axis of the second mounting hole (7362) is parallel to the vertical direction; one end of the clamping arm (733) is mounted in the first mounting hole (7361) and rotationally connected with the positioning frame (731), the fixed end of the first driving member (734) is mounted on the second mounting portion (737), the output end of the first driving member (734) is connected with the clamping arm (733), and the first driving member (734) drives the clamping arm (733) to swing, so that the clamping member (732) is inserted into or withdrawn from the lifting hole (910) of the anode rod (900); the fixed end of the second driving member (741) is mounted at the second mounting hole (7362).

4. A tool carriage for aluminum electrolysis according to claim 2, characterized in that, The positioning frame (731) is provided with a limiting plate (7311) on each of the opposite sides, the two limiting plates (7311) and the two swing plates (7423) form a cavity for accommodating the anode rod; the limiting plate (7311) on one side of the clamping arm (733) is provided with a hollow portion (7312) for the clamping member (732) to pass through; and the end of the limiting plate (7311) is provided with a flared portion (7313).

5. A tool carriage for aluminum electrolysis according to claim 1, characterized in that, The swivel head mechanism (750) comprises a mounting seat (751) connected with the anode clamping frame (720), a driving device (752) mounted on the mounting seat (751), a transmission shaft (753) rotationally connected with the mounting seat (751), a universal joint (754) connected with the end of the transmission shaft (753), and a universal swivel head (755) connected with one end of the universal joint (754).

6. A tool carriage for use in aluminium electrolysis according to any of claims 1-5, characterised in that The aluminum output vehicle (200) comprises a vehicle seat (210) and first lifting devices (220) and second lifting devices (230) mounted on the vehicle seat (210), and the first lifting devices (220) and the second lifting devices (230) are used for lifting the aluminum bags and making the aluminum bags inclined.

7. A tool carriage for aluminum electrolysis according to claim 6, characterized in that, The first lifting devices (220) comprise first walking seats (221), third driving members (222) mounted on the first walking seats (221) and driving the first walking seats (221) to move along the vehicle seat (210), and first electric hoist devices (223) mounted on the first walking seats (221); the second lifting devices (230) comprise second walking seats (231), fourth driving members (232) mounted on the second walking seats (231) and driving the second walking seats (231) to move along the vehicle seat (210), and second electric hoist devices (233) mounted on the second walking seats (231).

8. A tool carriage for aluminum electrolysis according to claim 7, characterized in that, The unwinding shaft (240) of the first electric hoist device (223) and the second electric hoist device (233) is perpendicular to the traveling direction of the aluminum unloading car (200).

9. A tool carriage for aluminum electrolysis according to claim 6, characterized in that, The rotary table (400) is also equipped with an ejector device (800) for creating a negative pressure inside the aluminum cladding.

10. A tool carriage for aluminum electrolysis according to claim 9, characterized in that, The ejector device (800) includes a mounting frame (810) connected to the rotary table (400), a hoisting mechanism (820) and a fixed frame (830) mounted on the mounting frame (810), a movable frame (840) slidably connected to the fixed frame (830), a fixed seat (850) connected to the movable frame (840), an ejector (860) mounted on the fixed seat (850), and a reel (870) with an air pipe; one end of the air pipe is connected to the fluid outlet of the ejector (860).

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