A heat-insulating type side sealing cover for an electrolytic cell

Abstract

The utility model relates to the technical field of electrolytic aluminium field, especially a kind of heat preservation type side seal cover for electrolytic cell, including as heat preservation structure's lightweight heat preservation layer, the bottom plate of being placed in lightweight heat preservation layer inside, the outer plate of being placed in lightweight heat preservation layer outside, the three shape dimensions are compatible and fixedly connected to form side seal cover cover body;The upper and lower ends of the side seal cover cover body are equipped with the end head aluminum plate with insulating pad, and end head aluminum plate is used to fixed insulating pad and plays the supporting effect;Insulating pad is used for the insulation between side seal cover and electrolytic cell, and handle is equipped on the outer plate.The application structure is simple, maintenance is convenient, and the coefficient of thermal conductivity is low, improves the heat preservation effect of seal cover, reduces the waste of energy, and operation is safe and reliable;Comprehensive density is significantly reduced compared with traditional side seal cover, not only greatly reduces the overall weight of seal cover, so that electrolytic worker can take easily and freely, but also improves the convenience and efficiency of operation, and it is more convenient, fast to take.

Description

Technical Field

[0001] This utility model relates to the technical field of electrolytic aluminum, and in particular to a heat-insulating side sealing cover for an electrolytic cell. Background Technology

[0002] Optimizing production equipment and strengthening energy management and utilization, particularly for aluminum electrolytic cells, has become an inevitable choice for the aluminum electrolytic industry.

[0003] An electrolytic cell side sealing cover is a cover used to seal an electrolytic cell, meeting the basic sealing requirements while maintaining a stable temperature inside the cell and preventing heat loss. Traditional side sealing covers often use solid single-layer thin aluminum plates as the main material. Due to the inherent high thermal conductivity of solid thin aluminum plates, it is difficult to prevent heat exchange between the inside of the electrolytic cell and the external environment, resulting in limited insulation and insufficient retention of the heat energy generated during electrolysis, causing unnecessary heat loss and energy waste. Furthermore, because solid thin aluminum plates require densely welded multiple aluminum frames as a support structure, traditional side sealing covers are quite bulky, making it inconvenient for production operators to handle during production, seriously affecting the convenience of production operations and thus reducing work efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a heat-insulating side sealing cover for electrolytic cells, which can improve the heat preservation effect, has a simple structure, is lightweight, can improve production efficiency, and reduce energy waste.

[0005] The specific technical solution is as follows:

[0006] A heat-insulating side sealing cover for an electrolytic cell includes a lightweight insulation layer as the insulation structure, a bottom plate placed inside the lightweight insulation layer, and an outer plate placed outside the lightweight insulation layer. The three parts are matched in size and fixedly connected to form the side sealing cover body. Both the upper and lower ends of the side sealing cover body are provided with end aluminum plates with insulating pads. The end aluminum plates are used to fix the insulating pads and provide support. The insulating pads are used to insulate between the side sealing cover and the electrolytic cell. The outer plate is provided with a handle.

[0007] Multiple metal crossbars are evenly distributed on the outer plate to enhance the rigidity of the side sealing cover.

[0008] Several metal vertical bars, serving as handles, are installed on the metal crossbar positioned symmetrically. The metal vertical bars have the same curvature as the cover body, serving as handles while further enhancing the rigidity of the side sealing cover.

[0009] The insulating pad includes an insulating pad one placed at the upper end of the cover and an insulating pad two placed at the lower end of the cover. The insulating pad placed at the lower end of the cover is wrapped with a U-shaped metal plate.

[0010] The lightweight insulation layer is a metal frame structure, and the interior of the metal frame includes multiple sets of uniformly arranged stiffeners and ribs forming a grid array.

[0011] Insulation material is filled between the stiffening plates and the ribs.

[0012] The lightweight insulation layer is an insulated aluminum plate.

[0013] The lightweight insulation layer has a certain thickness.

[0014] The metal portion and outer panel of the lightweight insulation layer are made of aluminum; the bottom plate is made of stainless steel.

[0015] The lightweight insulation layer is fixed to the outer panel and the bottom panel by riveting.

[0016] The beneficial effects of this utility model are as follows: The heat-insulating side sealing cover for electrolytic cells provided in this application has a simple structure, is easy to maintain, has a low thermal conductivity, improves the heat insulation effect of the sealing cover, reduces heat loss, reduces energy waste, and ensures safe and reliable operation. Its overall density is significantly lower than that of traditional side sealing covers, which not only greatly reduces the overall weight of the side sealing cover, making it easier for electrolysis workers to handle, but also improves the convenience and efficiency of operation, making handling more convenient and faster. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall assembly structure of a heat-insulating side sealing cover for an electrolytic cell according to the present invention;

[0018] Figure 2 This is a schematic diagram of the aluminum frame in Embodiment 1 of this utility model;

[0019] Figure 3 This is a schematic diagram of the aluminum plate structure in Embodiment 1 of this utility model;

[0020] Figure 4 This is a schematic diagram of the stainless steel plate in Embodiment 1 of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the insulating pad in Embodiment 1 of this utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the insulating pad 2 in Embodiment 1 of this utility model;

[0023] Figure 7 This is a schematic diagram of the aluminum frame filled with thermal insulation material in Embodiment 2 of this utility model;

[0024] Figure 8 This is a schematic diagram of the structure of the aluminum foam board in Embodiment 3 of this utility model;

[0025] The components include: 1. Lightweight insulation layer; 2. Outer panel; 3. Base plate; 4. Ceramic fiber felt; 5. Insulation pad one; 6. Insulation pad two; 7. U-shaped aluminum plate; 8. Square tube crossbar; 9. Square tube vertical bar; 10. Foam aluminum plate; 11. Aluminum frame. Detailed Implementation

[0026] To better explain and facilitate understanding of this utility model, the technical solution and effects of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Example 1, as Figure 1-6 As shown, this embodiment provides a heat-insulating side sealing cover for an electrolytic cell, including a lightweight insulation layer 1 as the insulation structure, a bottom plate 3 placed inside the lightweight insulation layer 1, and an outer plate 2 placed outside the lightweight insulation layer 1. The three parts are matched in size and fixedly connected to form the side sealing cover body. Both the upper and lower ends of the side sealing cover body are provided with end aluminum plates with insulating pads. The end aluminum plates are used to fix the insulating pads and provide support. The insulating pads are used to insulate between the side sealing cover and the electrolytic cell. The outer plate 2 is provided with a handle.

[0028] In this embodiment, the lightweight insulation layer 1, besides serving as a supporting structure for insulation, has a base plate 3 on its inner side and an outer plate 2 on its outer side. The lightweight insulation layer 1, base plate 3, and outer plate 2 are basically the same in shape and size, and are fixedly connected by riveting to form a side sealing cover. The size and curvature of the side sealing cover are adapted to the shape and size of the electrolytic cell, allowing the side sealing cover to be fastened to the edge of the electrolytic cell. Both the upper and lower ends of the side sealing cover are provided with end aluminum plates with insulating pads. The upper end aluminum plate is vertically welded to the upper edge of the lightweight insulation layer 1; the lower end aluminum plate is L-shaped and welded to the lower edge of the lightweight insulation layer 1. After the aluminum plate side sealing cover is fastened to the edge of the electrolytic cell, the upper and lower end aluminum plates of the side sealing cover abut against the edge of the electrolytic cell, thus ensuring that the insulation-type side sealing cover firmly covers the electrolytic cell. The insulating pad ensures insulation between the sealing cover and the electrolytic cell; a handle is located at the center of the outer plate 2 for easy movement of the side sealing cover. Since the electrolytic cell has a continuous structure, multiple insulated side sealing covers can be arranged sequentially to seal the electrolytic cell.

[0029] Multiple metal crossbars are evenly distributed on the outer plate 2 to enhance the rigidity of the side sealing cover.

[0030] In this embodiment, four aluminum square tube crossbars 8 are evenly welded laterally onto the outer plate 2 to enhance the rigidity of the side sealing cover.

[0031] Several metal vertical bars, serving as handles, are installed on the metal crossbar positioned symmetrically. These metal vertical bars have the same curvature as the side sealing cover, serving as handles while further enhancing the rigidity of the side sealing cover.

[0032] In this embodiment, two aluminum square tube vertical rods 9 are welded to two aluminum square tube horizontal rods 8 in the middle to serve as handles. This facilitates the electrolysis worker in taking the sealing cover during operations such as slag removal from the electrolytic cell, and further enhances the rigidity of the side sealing cover. The handles are not directly welded to the outer plate 2 to avoid excessive stress on the outer plate 2 at the weld point, which could cause damage.

[0033] The insulating pad includes an insulating pad 5 placed at the upper end of the cover and an insulating pad 6 placed at the lower end of the cover. The insulating pad 6 placed at the lower end of the cover is wrapped with a U-shaped metal plate.

[0034] In this embodiment, the insulating pad 6 placed at the lower end of the cover is wrapped with a U-shaped aluminum plate 7. Since the lower end of the cover needs to bear the weight of the entire cover, wrapping the insulating pad 6 at the lower end of the cover with the U-shaped aluminum plate 7 can increase the strength of the lower end of the cover. At the same time, when the cover is moved frequently, the U-shaped aluminum plate 7 will also increase the wear resistance.

[0035] The lightweight insulation layer 1 has a certain thickness.

[0036] In this embodiment, the lightweight insulation layer 1 can be 50mm thick, and different thicknesses can be set to meet the usage requirements in different application scenarios.

[0037] The metal part of the lightweight insulation layer 1 and the outer plate 2 are made of aluminum; the bottom plate 3 is made of stainless steel.

[0038] In this embodiment, the metal part of the lightweight insulation layer 1 and the outer plate 2 are both made of lightweight aluminum material, thereby reducing the weight of the sealing cover and making it easy to move. The bottom plate 3, as the part in contact with the inside of the electrolytic cell, is made of stainless steel plate, which has strong stability and can effectively prevent the sealing cover from being damaged by high temperature radiant heat, thereby playing a stable protective role.

[0039] The lightweight insulation layer 1 is fixed to the outer panel 2 and the bottom panel 3 by riveting.

[0040] In this embodiment, the outer panel 2 and its surrounding area of ​​the sealing cover are riveted together with 10mm thick rectangular aluminum plates, and the bottom plate 3 is riveted together with 10mm thick rectangular stainless steel plates. That is, after the lightweight insulation layer 1 is riveted together with the outer panel 2 and the bottom plate 3, the surrounding area is riveted together with 10mm thick rectangular aluminum plates, thereby effectively preventing damage to the sealing cover due to high-temperature radiant heat.

[0041] The lightweight insulation layer 1 is a metal frame structure, and the interior of the metal frame includes multiple sets of uniformly arranged stiffeners and ribs forming a grid array.

[0042] In this embodiment, the lightweight insulation layer 1 is an aluminum frame 11, which includes multiple sets of aluminum stiffeners and ribs arranged in a grid array in both longitudinal and transverse directions. These, together with the outer frame of the aluminum frame 11, form the entire lightweight insulation layer 1 structure, thereby reducing the overall weight and providing insulation. The various metal components of the aluminum frame 11 can be fixedly connected by welding. The stiffeners and ribs, along with the certain thickness of the entire lightweight insulation layer 1, create an air layer within the aluminum frame 11. After connecting with the outer plate 2 and the bottom plate 3, this forms a cover structure with a certain degree of insulation. The overall thermal conductivity is lower than that of a solid aluminum plate insulation layer, thus achieving insulation.

[0043] Example 2, as Figure 7 As shown, the difference from Embodiment 1 is that thermal insulation material is filled between the stiffening plates and the ribs.

[0044] Insulation material, specifically ceramic fiber felt 4, is filled between the stiffeners and ribs of the aluminum frame 11. The insulation material is divided into sizes that fit the space formed by the stiffeners and ribs. Based on Embodiment 1, the insulation material filling between the stiffeners and ribs, due to its structural characteristics, has a significantly lower thermal conductivity compared to a solid thin aluminum plate. This effectively reduces heat loss inside the electrolytic cell, improves the insulation effect of the sealing cover, and maintains a more stable and efficient working environment.

[0045] Example 3, as Figure 8 As shown, the difference from Embodiment 1 and Embodiment 2 is that the lightweight insulation layer 1 is an insulation aluminum plate.

[0046] In this embodiment, the lightweight insulation layer 1 is made of 50mm thick aluminum foam board 10. Due to its porous material characteristics, its thermal conductivity is significantly lower than that of a solid thin aluminum board, which can effectively reduce heat loss inside the electrolytic cell, improve the insulation effect of the sealing cover, and maintain a more stable and efficient working environment. It also provides support and is more convenient and simple to use.

[0047] The scope of protection of this application is not limited to the above-described embodiments. Obviously, those skilled in the art can make various modifications and variations to this disclosure without departing from the scope and spirit of this disclosure.

Claims

1. A heat-insulating side sealing cover for an electrolytic cell, characterized in that: The structure includes a lightweight insulation layer, a base plate inside the lightweight insulation layer, and an outer plate outside the lightweight insulation layer. The three components are matched in size and fixedly connected to form a side sealing cover. Both the upper and lower ends of the side sealing cover are provided with end aluminum plates with insulating pads. The end aluminum plates are used to fix the insulating pads and provide support. The insulating pads are used to insulate between the side sealing cover and the electrolytic cell. The outer plate is provided with a handle.

2. The heat-insulating side sealing cover for an electrolytic cell according to claim 1, characterized in that: Multiple metal crossbars are evenly distributed on the outer plate to enhance the rigidity of the side sealing cover.

3. The heat-insulating side sealing cover for an electrolytic cell according to claim 2, characterized in that: Several metal vertical bars, serving as handles, are installed on the metal crossbar positioned symmetrically. The metal vertical bars have the same curvature as the cover body, serving as handles while further enhancing the rigidity of the side sealing cover.

4. The heat-insulating side sealing cover for an electrolytic cell according to claim 1, characterized in that: The insulating pad includes an insulating pad one placed at the upper end of the cover and an insulating pad two placed at the lower end of the cover. The insulating pad placed at the lower end of the cover is wrapped with a U-shaped metal plate.

5. The heat-insulating side sealing cover for an electrolytic cell according to claim 1, characterized in that: The lightweight insulation layer is a metal frame structure, and the interior of the metal frame includes multiple sets of uniformly arranged stiffeners and ribs forming a grid array.

6. The heat-insulating side sealing cover for an electrolytic cell according to claim 5, characterized in that: Insulation material is filled between the stiffening plates and the ribs.

7. The heat-insulating side sealing cover for an electrolytic cell according to claim 1, characterized in that: The lightweight insulation layer is an insulated aluminum plate.

8. The heat-insulating side sealing cover for an electrolytic cell according to claim 1, characterized in that: The lightweight insulation layer has a certain thickness.

9. The heat-insulating side sealing cover for an electrolytic cell according to claim 1, characterized in that: The metal portion and outer panel of the lightweight insulation layer are made of aluminum; the bottom plate is made of stainless steel.

10. The heat-insulating side sealing cover for an electrolytic cell according to claim 1, characterized in that: The lightweight insulation layer is fixed to the outer panel and the bottom panel by riveting.

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