Connecting and sealing device for blanking device on upper portion of electrolytic cell and material box

Abstract

The utility model discloses a connecting and sealing device for an upper feeder and a material box of an electrolytic bath, which comprises a mounting seat, an I-shaped sealing element and a connecting pipe, a mounting position is arranged on the upper side of the mounting seat, the mounting seat is provided with a feeding hole, and the I-shaped sealing element comprises an upper sealing plate, a sealing cylinder and a lower sealing plate. The upper end and the lower end of the sealing cylinder communicate with the feeding hole and the connecting pipe correspondingly, the upper end and the lower end of the sealing cylinder are fixedly connected with the upper sealing plate and the lower sealing plate correspondingly, the upper sealing plate is provided with an upper pressing plate, the upper side and the lower side of the upper sealing plate are connected with the mounting base and the upper pressing plate in a clamped mode correspondingly, and the lower sealing plate is provided with a lower pressing plate. The sealing cylinder is fixedly connected with a flange plate, and the upper side and the lower side of the lower sealing plate are connected with the lower pressing plate and the flange plate in a clamped mode respectively. The utility model has the beneficial effects that the phenomena of material spraying and material overflowing are effectively reduced, and the advantage of better sealing performance is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of connection and sealing structures, specifically to a connection and sealing device between the upper feeder of an electrolytic cell and the material box. Background Technology

[0002] The upper part of the electrolytic cell is a crucial piece of equipment in aluminum electrolysis production. It mainly includes a feed hopper, a feeder, and a shell-breaking cylinder. The feed hopper and feeder are responsible for controlling the addition of alumina raw materials during the aluminum electrolysis process. The feeder uses a feeding cylinder and is installed on top of the feed hopper. The feeding action is controlled by a solenoid valve controlled by the cell control machine.

[0003] Traditionally, the connection between the feeder base and the hopper uses a straight-through PVC rubber tube, with both ends sealed with clamps. During the feeding process, the pressure inside the hopper is higher than outside, causing the rubber tube ends to easily detach. Simultaneously, the vibration from frequent feeder movements can loosen the feeder's fixing bolts, leading to the feeder base becoming loose and shifting, further exacerbating seal failure. This results in material leakage at the connection point, significant alumina loss, and dust pollution in the electrolysis workshop. While the maintenance workshop allocates a large number of personnel to troubleshoot and repair leaks, the limited installation space for the feeder and the high temperature at the top of the electrolytic cell make replacing seals and tightening bolts inefficient, and the sealing effect is difficult to maintain after replacement, making it difficult to completely eliminate the leakage problem. Therefore, the existing connection structure between the electrolytic cell feeder and the hopper suffers from insufficient sealing. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a sealing device for the connection between the upper feeder of the electrolytic cell and the material box, which includes a mounting base, an I-shaped seal and a connecting pipe. This sealing device for the connection between the upper feeder of the electrolytic cell and the material box has the advantage of good sealing performance.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0006] A sealing device for connecting the upper feeder of an electrolytic cell to a material box includes a mounting base, an H-shaped seal, and a connecting pipe. The mounting base has an mounting position on its upper side and a feed hole. The H-shaped seal includes an upper sealing plate, a sealing cylinder, and a lower sealing plate. The upper and lower ends of the sealing cylinder are respectively connected to the feed hole and the connecting pipe. The upper and lower ends of the sealing cylinder are respectively fixedly connected to the upper sealing plate and the lower sealing plate. The upper sealing plate has an upper pressure plate. The upper and lower sides of the upper sealing plate are respectively engaged with the mounting base and the upper pressure plate. The lower sealing plate has a lower pressure plate. The sealing cylinder is fixedly connected to a flange. The upper and lower sides of the lower sealing plate are respectively engaged with the lower pressure plate and the flange.

[0007] This configuration effectively increases the contact area of ​​the upper sealing plate's mounting base and improves the stability of the upper sealing plate and mounting base. It also effectively increases the contact area of ​​the lower sealing plate's flange and improves the stability of the lower sealing plate and flange, effectively reducing material leakage and achieving better sealing performance.

[0008] Preferably, the system also includes a support screw, which passes through the mounting base, upper sealing plate, upper pressure plate, lower pressure plate, lower sealing plate, and flange. The support screw is threaded with a first nut and a second nut. The first nut engages with the lower side of the flange, and the second nut engages with the upper side of the lower pressure plate.

[0009] This setup ensures that the mounting base and upper pressure plate can stably clamp the upper sealing plate, and that the lower pressure plate and flange can stably clamp the lower sealing plate.

[0010] Preferably, the support screw is threaded with a third nut and a fourth nut, the third nut is engaged with the lower side of the upper pressure plate, and the support screw is provided with a washer located on the mounting base, the upper and lower sides of the washer being engaged with the fourth nut and the mounting base respectively.

[0011] By tightening the third and fourth nuts, the mounting base and the upper pressure plate are clamped together, providing a preload force on the upper pressure plate and pressing the upper sealing plate onto the mounting base.

[0012] Preferably, multiple support screws are provided.

[0013] This configuration further enhances structural stability.

[0014] Preferably, the plurality of the support screws are evenly distributed around the sealing cylinder.

[0015] This setting improves reliability.

[0016] Preferably, a total of four support screws are provided.

[0017] With this setup, the installation process is also quite simple.

[0018] Preferably, the mounting base, upper pressure plate, lower pressure plate, and flange are all quadrilaterals in horizontal projection, and the mounting base, upper pressure plate, lower pressure plate, and flange are aligned in rotation angle. The outer edge of the mounting base has four right angles, and the four support screws are respectively located near the four right angles.

[0019] This setting facilitates installation.

[0020] Preferably, the sidewall of the sealing cylinder is arc-shaped, and the diameter of the sealing cylinder gradually decreases from the middle to the upper and lower ends.

[0021] This design prevents material leakage caused by damage to the sealing cylinder.

[0022] Preferably, the upper sealing plate, the sealing cylinder, and the lower sealing plate are integrally formed.

[0023] This design improves the sealing performance and structural stability of the upper sealing plate, sealing cylinder, and lower sealing plate.

[0024] Compared with the prior art, this utility model has achieved beneficial technical effects:

[0025] 1. The upper end of the sealing cylinder is sealed using an upper sealing plate, a mounting base, and an upper pressure plate. The mounting base and upper pressure plate clamp the upper sealing plate from both the top and bottom, effectively increasing the contact area between the upper sealing plate and the mounting base, thus improving the sealing effect between them. This also enhances the stability of the upper sealing plate and the mounting base, further improving the reliability of the seal and effectively reducing material leakage, achieving superior sealing performance.

[0026] 2. The lower end of the sealing cylinder is sealed using a lower sealing plate, a lower pressure plate, and a flange. The lower pressure plate and flange clamp the lower sealing plate from both the top and bottom, effectively increasing the contact area between the lower sealing plate and the flange, thus improving the sealing effect between the lower sealing plate and the lower pressure plate. This also enhances the stability of the lower sealing plate and the flange, further improving the reliability of the seal between them, effectively reducing material leakage and achieving superior sealing performance. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the connection and sealing device between the upper feeder of the electrolytic cell and the material box in an embodiment of this utility model;

[0028] Figure 2 This is a cross-sectional view of a sealing device for connecting the upper feeder of an electrolytic cell and the material box in an embodiment of this utility model.

[0029] The technical features referred to by the various reference numerals in the accompanying drawings are as follows:

[0030] 11. Mounting base; 12. Mounting position; 13. Feed hole; 14. Upper pressure plate; 21. Upper sealing plate; 22. Sealing cylinder; 23. Lower sealing plate; 31. Connecting pipe; 32. Flange; 33. Lower pressure plate; 41. Support screw; 42. First nut; 43. Second nut; 44. Third nut; 45. Fourth nut; 46. Gasket. Detailed Implementation

[0031] To make the objectives, technical solutions and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments. However, the scope of protection of this utility model is not limited to the specific embodiments described below.

[0032] refer to Figure 1 and Figure 2 A sealing device for connecting the upper feeder of an electrolytic cell to a material box includes a mounting base 11, an I-shaped seal, a connecting pipe 31, and a support screw 41. The mounting base 11 has a mounting position 12 on its upper side and a feed hole 13. The I-shaped seal includes an upper sealing plate 21, a sealing cylinder 22, and a lower sealing plate 23. The upper and lower ends of the sealing cylinder 22 are respectively connected to the feed hole 13 and the connecting pipe 31. The upper and lower ends of the sealing cylinder 22 are respectively fixedly connected to the upper sealing plate 21 and the lower sealing plate 23. The upper sealing plate 21 has an upper pressure plate 14. The upper and lower sides of the upper sealing plate 21 are respectively engaged with the mounting base 11 and the upper pressure plate 14. The lower sealing plate 23 has a lower pressure plate 33. The sealing cylinder 22 is fixedly connected to a flange 32. The upper and lower sides of the lower sealing plate 23 are respectively engaged with the lower pressure plate 33 and the flange 32.

[0033] Support bolts 41 pass through the mounting base 11, upper sealing plate 21, upper pressure plate 14, lower pressure plate 33, lower sealing plate 23, and flange 32. Multiple support bolts 41 are provided to further improve structural stability. The multiple support bolts 41 are evenly distributed around the sealing cylinder 22, ensuring balanced force distribution and improved reliability. A total of four support bolts 41 are provided. The four support bolts 41 are spaced 90° apart, resulting in a more stable structure and simpler installation. The mounting base 11, upper pressure plate 14, lower pressure plate 33, and flange 32 are all quadrilaterals in horizontal projection. They are aligned in rotational angles. The outer edge of the mounting base 11 has four right angles, and the four support bolts 41 are located near these four right angles. The distance between the right-angled edge of the mounting base 11 and the sealing cylinder 22 is relatively large, so its width is also relatively large. Setting the support screw 41 at the right angle allows the mounting base 11 to have a large installation space, which facilitates installation.

[0034] The support screw 41 is threaded with a first nut 42 and a second nut 43. The first nut 42 engages with the lower side of the flange 32, and the second nut 43 engages with the upper side of the lower pressure plate 33. Passing the support screw 41 through the mounting base 11, upper sealing plate 21, upper pressure plate 14, lower pressure plate 33, lower sealing plate 23, and flange 32, the support screw 41 positions the mounting angles of these components, ensuring they align with the flange 32. This guarantees that the mounting base 11 and upper pressure plate 14 stably clamp the upper sealing plate 21, and that the lower pressure plate 33 and flange 32 stably clamp the lower sealing plate 23. Tighten the first nut 42 and the second nut 43 to clamp the flange 32 and the lower pressure plate 33, providing a preload force on the lower pressure plate 33, which then presses the lower sealing plate 23 onto the flange 32. The support screw 41 is threaded with a third nut 44 and a fourth nut 45. The third nut 44 engages with the lower side of the upper pressure plate 14. The support screw 41 has a washer 46 located on the mounting base 11, with its upper and lower sides engaging with the fourth nut 45 and the mounting base 11, respectively. Tighten the third nut 44 and the fourth nut 45 to clamp the mounting base 11 and the upper pressure plate 14, providing a preload force on the upper pressure plate 14, which then presses the upper sealing plate 21 onto the mounting base 11. The support screw 41 provides support to the upper pressure plate 14 and the mounting base 11, keeping the mounting base 11 in a stable position. Therefore, the support screw 41 can provide positioning, locking and support for the upper pressure plate 14 and the lower pressure plate 33, realizing the connection and sealing functions of the connection sealing device.

[0035] The sealing cylinder 22 has an arc-shaped sidewall, and its diameter gradually decreases from the middle to both ends. When the pressure inside the hopper increases, if the middle of the sealing cylinder 22 contracts inward, it will be stretched open, causing significant deformation. Repeated deformation over a long period can lead to excessive fatigue wear, potentially causing cracking and breakage. Therefore, this application design features a protruding sidewall in the middle of the sealing cylinder 22. When the pressure inside the hopper increases, this protruding sidewall can better withstand the tension, improving the stability of the sealing cylinder 22 under increased pressure, extending its service life, and preventing material leakage due to breakage. The upper sealing plate 21, sealing cylinder 22, and lower sealing plate 23 are integrally formed, improving their sealing performance and structural stability.

[0036] This embodiment has the following advantages:

[0037] The connecting pipe 31 is welded to the top of the material box, and the feeder is installed on the mounting position 12. The feeder is connected to the top of the material box through the connecting sealing device. The material delivered by the feeder is fed into the material box through the feed hole 13, the sealing cylinder 22 and the connecting pipe 31 to realize the feeding function.

[0038] The upper end of the sealing cylinder 22 is sealed using an upper sealing plate 21, a mounting base 11, and an upper pressure plate 14. The mounting base 11 and the upper pressure plate 14 clamp the upper sealing plate 21 from both the top and bottom, effectively increasing the contact area between the upper sealing plate 21 and the mounting base 11, thus improving the sealing effect between them. Furthermore, the upper pressure plate 14 presses the upper sealing plate 21 onto the mounting base 11, resulting in better stability between the upper sealing plate 21 and the mounting base 11, further enhancing the sealing reliability and effectively reducing material leakage. This achieves better sealing performance and is more reliable than sealing methods that use clamps at both ends of the rubber tube.

[0039] The lower end of the sealing cylinder 22 is sealed using a lower sealing plate 23, a lower pressure plate 33, and a flange 32. The lower pressure plate 33 and flange 32 clamp the lower sealing plate 23 from both the top and bottom, effectively increasing the contact area between the lower sealing plate 23 and the flange 32, thus improving the sealing effect between them. Furthermore, the lower pressure plate 33 presses the lower sealing plate 23 onto the flange 32, resulting in good stability between the two, further enhancing the sealing reliability and effectively reducing material leakage. This achieves better sealing performance and is more reliable than sealing methods that use clamps at both ends of the rubber tube.

[0040] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the utility model.

Claims

1. A sealing device for connecting a cell upper tundish with a material box, characterized in that: The utility model provides a sealing device for material feeding, including mounting seat (11), I -shaped sealing piece and connecting pipe (31), mounting seat (11) upside is equipped with mounting site (12), mounting seat (11) is equipped with feed hole (13), I -shaped sealing piece includes upper sealing plate (21), sealing cylinder (22) and lower sealing plate (23), sealing cylinder (22) upper and lower two ends are communicated with feed hole (13) and connecting pipe (31) respectively, sealing cylinder (22) upper and lower two ends are fixedly connected with upper sealing plate (21) and lower sealing plate (23) respectively, upper sealing plate (21) is equipped with upper pressing plate (14), upper sealing plate (21) upper and lower two sides are clamped with mounting seat (11) and upper pressing plate (14) respectively, lower sealing plate (23) is equipped with lower pressing plate (33), sealing cylinder (22) is fixedly connected with flange (32), lower sealing plate (23) upper and lower two sides are clamped with lower pressing plate (33) and flange (32) respectively.

2. The connection sealing device of the upper part of the electrolytic cell, blanking device and material box according to claim 1, characterized in that: It also includes a support screw (41), the support screw (41) is provided in the mounting seat (11), the upper sealing plate (21), the upper pressing plate (14), the lower pressing plate (33), the lower sealing plate (23) and the flange (32), the support screw (41) is threadedly connected with a first nut (42) and a second nut (43), the first nut (42) is clamped with the lower side of the flange (32), the second nut (43) is clamped with the upper side of the lower pressing plate (33).

3. The connection sealing device of the upper part of the electrolytic cell with the material box according to claim 2, characterized in that: The support screw (41) is threadedly connected with a third nut (44) and a fourth nut (45), the third nut (44) is clamped with the lower side of the upper pressing plate (14), the support screw (41) is provided with a gasket (46) located in the mounting seat (11), the gasket (46) upper and lower two sides are clamped with the fourth nut (45) and the mounting seat (11) respectively.

4. The seal assembly of claim 2, wherein: The support screw (41) is provided with a plurality of.

5. The seal for the connection between the upper material distributor and the material box of the electrolytic cell according to claim 4, characterized in that: The plurality of support screws (41) are evenly distributed around the sealing cylinder (22).

6. The seal for the connection between the upper material distributor and the material box of the electrolytic cell according to claim 5, characterized in that: The support screw (41) is provided with four.

7. The seal for the connection between the upper material distributor and the material box of an electrolytic cell according to claim 6, characterized in that: The mounting seat (11), the upper pressing plate (14), the lower pressing plate (33), the flange (32) are all quadrilaterals in horizontal projection, the mounting seat (11), the upper pressing plate (14), the lower pressing plate (33), the flange (32) are aligned in rotation angle, the outer edge of the mounting seat (11) is provided with four right angles, and the four support screws (41) are located near the four right angles respectively.

8. The seal for the connection between the upper material distributor and the material box of the electrolytic cell according to claim 1, characterized in that: The sidewall of the sealing cylinder (22) is arc-shaped, and the diameter of the sealing cylinder (22) gradually decreases from the middle to the upper and lower ends.

9. The seal for the connection between the upper material distributor and the material box of the electrolytic cell according to claim 1, characterized in that: The upper sealing plate (21), the sealing cylinder (22) and the lower sealing plate (23) are integrally formed.

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