A crust breaker for an aluminium reduction cell
By introducing a dust extraction component into the aluminum electrolytic cell shelling device, the problem of powder accumulation in the alumina shell layer was solved, achieving a highly efficient shelling process and reducing the labor intensity of workers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN YUNLV HAIXIN ALUMINUM CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-06-09
AI Technical Summary
In the existing aluminum electrolytic cell shelling process, the alumina shell powder is scattered and accumulates in the support, affecting the descent of the shelling cylinder, reducing efficiency and increasing the labor intensity of workers.
Design an aluminum electrolytic cell shell-breaking device, comprising a shell-breaking cylinder, a support, and a dust collection assembly. The dust collection assembly includes a dust collection component and a baffle to prevent dust from entering the interior of the support and to discharge the dust through a dust collection pipe and a dust outlet pipe.
It effectively prevents dust from entering the support, ensures the normal descent of the shell-breaking cylinder, improves shell-breaking efficiency, and reduces the labor intensity of workers.
Smart Images

Figure CN224337753U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aluminum electrolysis technology, and in particular to a shell-breaking device for aluminum electrolysis cells. Background Technology
[0002] During electrolysis, a hard alumina shell layer forms on the surface of the molten electrolyte in the electrolytic cell due to heat dissipation. It is necessary to break the alumina shell layer. The opening formed after breaking the shell allows the addition of alumina raw materials into the electrolytic cell to maintain the raw material supply for the electrolysis reaction.
[0003] The existing shell-breaking method involves setting up a support above the electrolytic cell, with a shell-breaking cylinder connected to the support. The hammer of the shell-breaking cylinder continuously strikes the alumina crust layer to break it. Since the shell-breaking cylinder is initially positioned in the middle of the support, the alumina crust layer at the top is scattered into the air as powder during the striking process. Due to the low dispersion height, most of the powder enters the support and is located at the lower end. The powder accumulation inside the support restricts the operation of the drive structure, preventing the shell-breaking cylinder from descending to the lowest point. At this point, the machine must be stopped, and workers must use a handheld blower to blow out the dust inside the support before the shell-breaking cylinder can descend normally. This method greatly reduces the efficiency of shell breaking and increases the labor intensity of the workers. Utility Model Content
[0004] In view of the technical problems existing in the background art, the purpose of this utility model is to provide an aluminum electrolytic cell shell-breaking device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:
[0006] A shell-breaking device for an aluminum electrolytic cell includes a shell-breaking cylinder, a support, and a dust collection assembly. The shell-breaking cylinder is located on the outside of the support, and a driving component is located inside the support. The driving component is connected to the shell-breaking cylinder. The dust collection assembly includes a dust collection component, which is detachably located on one side of the support. The dust collection component includes a dust collection structure, a dust collection pipe, and a dust discharge pipe. The dust collection pipe passes through the support and is aligned with the driving component. The dust discharge pipe is located on the opposite side of the dust collection pipe. The dust collection structure is rotatable, allowing dust inside the support to be sucked out through the dust collection pipe.
[0007] Preferably, the driving component includes a lead screw and a lead screw nut, one end of which is provided with a support plate, and the shell-breaking cylinder is detachably disposed at the support plate position.
[0008] Preferably, the dust collection assembly also includes a baffle, which is L-shaped and disposed between the support and the shell-breaking cylinder. The baffle is detachably connected to the support.
[0009] Preferably, the upper end of the support is provided with a connecting hole I, and the baffle is provided with a connecting hole II, with the connecting hole I and the connecting hole II aligned.
[0010] Preferably, the baffle is provided with a through hole, and when the connecting hole I and the connecting hole II are aligned, the lead screw is disposed in the through hole.
[0011] Preferably, the baffle is provided with a channel, and the support plate is disposed in the channel.
[0012] Preferably, the vacuuming component also includes a housing, the vacuuming structure is disposed inside the housing, the vacuuming pipe is disposed at one end of the housing, and the dust outlet pipe is disposed at the other end of the housing.
[0013] Preferably, the support is provided with hole I, and the shell is provided with hole II, and hole I and hole II are aligned.
[0014] This utility model has the following advantages and beneficial effects:
[0015] In this invention, since the dust has a certain mass, when the shell-breaking cylinder is working, the dust often accumulates at the lower end of the support. The dust collection component is set at the lower end of the support, and the baffle can block a large amount of dust when the shell-breaking cylinder is working, preventing a large amount of dust from entering the inside of the support. When the shell-breaking cylinder is about to descend, the motor is turned on to make the fan blades rotate, and the dust accumulated inside the support is sucked out through the dust collection pipe and then blown out through the dust outlet pipe. This avoids the accumulation of dust inside the support, which would affect the normal operation of the drive component, greatly increasing the shell-breaking efficiency and reducing the labor intensity of the workers. Attached Figure Description
[0016] Figure 1 This is a structural diagram of an aluminum electrolytic cell shell-breaking device proposed in this utility model;
[0017] Figure 2 This is a schematic diagram showing the connection between the support and the dust collection component of the aluminum electrolytic cell shell-breaking device proposed in this utility model;
[0018] Figure 3 Exploded view of the baffle and support of the aluminum electrolytic cell shell-breaking device proposed in this utility model;
[0019] Figure 4 This is a cross-sectional view of the dust collection component of an aluminum electrolytic cell shell-breaking device proposed in this utility model;
[0020] Reference numerals: 1-Casing cylinder, 2-Support, 21-Lead screw, 22-Lead screw nut, 23-Support plate, 24-Connecting hole I, 25-Hole I, 3-Baffle, 31-Through hole, 32-Connecting hole II, 33-Channel, 4-Dust suction component, 41-Casing, 411-Dust suction pipe, 412-Dust discharge pipe, 42-Fan blade, 43-Hole II, 44-Motor. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.
[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0023] Example
[0024] like Figures 1-4 As shown, an aluminum electrolytic cell shell-removing device includes a shell-removing cylinder 1, a support 2, and a dust collection assembly. The shell-removing cylinder 1 is located on the outside of the support 2. A driving component is installed inside the support 2 and connected to the shell-removing cylinder 1. The driving component includes a lead screw 21 and a lead screw nut 22, which are fitted together with the lead screw 21. The lead screw 21 is rotatably inserted through the middle of the support 2, and its upper end passes through the upper end of the support 2. When the lead screw 21 rotates, the lead screw nut 22 slides along the direction of the lead screw 21. A support plate 23 is provided at one end of the lead screw nut 22. The shell-removing cylinder 1 is detachably mounted. At the support plate 23, the lower end of the shell-piercing cylinder 1 is supported on the support plate 23, and the support plate 23 and the shell-piercing cylinder 1 are respectively provided with corresponding threaded holes. The shell-piercing cylinder 1 and the support plate 23 are connected by bolts. The shaft of the shell-piercing cylinder 1 passes through the support plate 23. The support plate 23 connects the shell-piercing cylinder 1 and the lead screw nut 22. By rotating the lead screw 21, the lead screw nut 22 slides on the lead screw 21, thereby making the shell-piercing cylinder 1 move synchronously through the support plate 23 and the lead screw nut 22. Adjusting the position of the lead screw nut 22 can realize the lifting and lowering of the shell-piercing cylinder 1, thus adjusting the height of the shell-piercing cylinder 1.
[0025] like Figures 1-4As shown, the vacuuming assembly includes a vacuuming component 4 and a baffle 3. The baffle 3 has an L-shaped structure and is positioned between the support 2 and the shell-opening cylinder 1. The baffle 3 is detachably connected to the support 2. The upper end of the support 2 is provided with a connecting hole I 24, and the baffle 3 is provided with a connecting hole II 32. The connecting holes I 24 and II 32 are aligned. Bolts are screwed into the connecting holes I 24 and II 32 to connect the baffle 3 and the support 2. The baffle 3 is provided with a through hole 31. When the connecting holes I 24 and II 32 are aligned, the lead screw 21 is positioned in the through hole 31. The installation of the baffle 3 does not affect the overall structure of the support 2 itself. Only a hole needs to be drilled in the existing support 2 to achieve the positioning of the baffle 3 and the support 2. When the lead screw 21 is driven to rotate, the through hole 31 will not affect the normal rotation of the lead screw 21.
[0026] like Figures 1-3 As shown, the baffle 3 is provided with a channel 33, and the support plate 23 is set in the channel 33. The channel 33 is directly opposite the position of the lead screw 21, and the width of the channel 33 is smaller than the diameter of the lead screw 21. In the existing support 2, one end of the lead screw nut 22 has a large contact area with the outside. When dust rises, the dust will fall into the inside of the support 2 and get stuck in the thread gap of the lead screw 21. When the lead screw nut 22 moves, the dust will affect the normal sliding of the lead screw nut 22. The baffle 3 is set at the front end of the support 2, and the channel 33 is directly opposite the lead screw 21. This reduces the contact area between the lead screw nut 22 and the lead screw 21 and the outside, reduces the amount of dust entering the support 2, and does not affect the normal movement of the shell-breaking cylinder 1. This greatly protects the cleanliness of the inside of the support 2 and reduces the impact of dust on the structure of the lead screw 21.
[0027] like Figures 1-4 As shown, the dust collection component 4 is detachably mounted on one side of the support 2. The dust collection component 4 is located at the lower end of the support 2. The dust collection component 4 includes a housing 41, a dust collection structure, a dust collection pipe 411, and a dust discharge pipe 412. The dust collection structure is located inside the housing 41. The dust collection pipe 411 is located at one end of the housing 41, and the dust discharge pipe 412 is located at the other end of the housing 41. The dust collection pipe 411 passes through the support 2 and is aligned with the driving component. The dust discharge pipe 412 is located on the opposite side of the dust collection pipe 411. The dust collection structure can rotate. The dust collection structure includes a fan blade 42 and a motor 44. The fan blade 42 is located inside the housing 41. The motor 44 is connected to the fan blade 42 and drives the fan blade 42 to rotate. When the fan blade 42 rotates, the dust inside the support 2 is sucked out through the dust collection pipe 411 and blown out from the dust discharge pipe 412. The end of the dust discharge pipe 412 can be connected to a dust collection structure such as a cloth bag to collect the dust inside the support 2.
[0028] like Figures 1-4As shown, the support 2 is provided with hole I 25, and the housing 41 is provided with hole II 43. Holes I 25 and II 43 are aligned. The housing 41 is placed on the support 2, so that holes I 25 and II 43 are aligned. Bolts are screwed into holes I 25 and II 43, so that the support 2 and the vacuum cleaner 4 can be detachably connected. The detachable connection method makes it easy to assemble and disassemble the vacuum cleaner 4.
[0029] Since the dust has a certain mass, when the shell-breaking cylinder 1 is working, the dust often accumulates at the lower end of the support 2. The dust collection component 4 is set at the lower end of the support 2. The baffle 3 can block a large amount of dust when the shell-breaking cylinder 1 is working, preventing a large amount of dust from entering the interior of the support 2. When the shell-breaking cylinder 1 is still in the middle position of the lead screw 21, the motor 44 is turned on to make the fan blade 42 rotate. The dust accumulated inside the support 2 is sucked out through the dust collection pipe 411 and then blown out through the dust outlet pipe 412, which avoids the dust accumulating inside the support 2 and thus affecting the normal operation of the drive component. The shell-breaking cylinder 1 can descend normally. The whole process does not require stopping the machine, which greatly increases the shell-breaking efficiency and reduces the labor intensity of the workers.
[0030] This is merely a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A shell-breaking device for an aluminum electrolytic cell, characterized in that, The device includes a shell-piercing cylinder, a support, and a dust collection assembly. The shell-piercing cylinder is located on the outside of the support, and a driving component is located inside the support. The driving component is connected to the shell-piercing cylinder and is used to drive the shell-piercing cylinder to move up and down. The dust collection assembly includes a dust collection component, which is detachably located on one side of the support. The dust collection component includes a dust collection structure, a dust collection pipe, and a dust discharge pipe. The dust collection pipe passes through the support and is aligned with the driving component. Dust inside the support is sucked out through the dust collection pipe.
2. The aluminum electrolytic cell shell-breaking device according to claim 1, characterized in that: The driving component includes a lead screw and a lead screw nut. One end of the lead screw nut is provided with a support plate, and the shell-breaking cylinder is detachably installed at the support plate position.
3. The aluminum electrolytic cell shell-breaking device according to claim 2, characterized in that: The dust collection assembly also includes a baffle, which has an L-shaped structure and is disposed between the support and the shell-breaking cylinder. The baffle is detachably connected to the support.
4. The aluminum electrolytic cell shell-breaking device according to claim 3, characterized in that: The upper end of the support is provided with a connecting hole I, and the baffle is provided with a connecting hole II, with the connecting hole I and the connecting hole II aligned.
5. The aluminum electrolytic cell shell-breaking device according to claim 4, characterized in that: The baffle is provided with a through hole. When the connecting hole I and the connecting hole II are aligned, the lead screw is placed in the through hole.
6. The aluminum electrolytic cell shell-breaking device according to claim 3, characterized in that: The baffle is provided with a channel, and the support plate is disposed in the channel.
7. The aluminum electrolytic cell shell-breaking device according to claim 1, characterized in that: The dust collection component also includes a housing, the dust collection structure is disposed inside the housing, the dust collection pipe is disposed at one end of the housing, and the dust discharge pipe is disposed at the other end of the housing.
8. The aluminum electrolytic cell shell-breaking device according to claim 7, characterized in that: The support has a hole I, and the housing has a hole II, with the holes I and II aligned.