Portable insulation protection device for door-shaped stand column of electrolytic cell in starting process of aluminum electrolytic cell

Abstract

The utility model discloses an aluminium electrolysis cell starting process electrolytic cell door type stand column portable insulation protection device, including iron casing and detachable insulation plate, the iron casing is C-shaped, including back plate and the side plate that is symmetrically arranged on the back plate both sides, detachable insulation plate is arranged in the opening end of iron casing, and the detachable insulation plate is arranged on the back plate. Iron sheets are uniformly arranged between two sides of the detachable insulating plate and the side plates for connection, U-shaped insulating plates are respectively arranged on the inner walls of the two side plates, the opening ends of the U-shaped insulating plates face the side plates, the U-shaped insulating plates are perpendicular to the side plates, grabbing lugs are respectively arranged on the outer walls of the two side plates, and insulating clamping plates are arranged on the top surface of the back plate. The top surface of the backboard is clamped into the open end of the insulation clamping plate, the axis of the insulation clamping plate and the backboard are on the same plane, and the bottom of the iron shell is provided with supporting legs. According to the protective sleeve designed to be of a quick-release structure, the detachable insulating plate is welded to the end of the side wall through the iron sheet, mounting and dismounting are facilitated by removing welding spots, complex operation is not needed, and therefore the daily maintenance and overhaul process of the electrolytic cell is simplified.

Description

Technical Field

[0001] This utility model belongs to the field of aluminum electrolysis production, specifically relating to a convenient insulating protection device for a portal column during the start-up of an aluminum electrolysis cell. Background Technology

[0002] Currently, the following specific treatment solutions are typically adopted for portal columns during the startup process of electrolytic aluminum cells:

[0003] 1. Insulating Sleeve Protection: Specialized insulating sleeves are used for the electrolytic cell portal columns. These sleeves consist of a protective plate and insulating strips, typically in a "U" shape, and can be connected across both ends of the insulating plate to provide insulation and heat insulation. However, while the insulating sleeves provide insulation and heat insulation to a certain extent, after long-term use, due to the high temperature and highly corrosive environment inside the electrolytic cell, the sleeve material is prone to aging and cracking, leading to a decline in insulation performance. Furthermore, the installation and removal of the sleeves are relatively cumbersome, making routine maintenance and repair of the electrolytic cell inconvenient.

[0004] 2. High-Temperature Resistant Material Protection: During the start-up of the electrolytic cell, high-temperature resistant asbestos boards can be used for protection. Before start-up, these protective sleeves should be evenly wrapped around the portal column to provide insulation protection. Although high-temperature resistant asbestos boards can protect the column insulation strips from being burned during electrode switching operations, their material is easily damaged, the protection time is short, and they are difficult to adapt to the specific needs of different electrolytic cells.

[0005] The use of asbestos boards increases the complexity and cost of electrolytic cells, and may also lead to problems such as unstable fixation and easy detachment during use.

[0006] 3. Structural Stability Design: The portal frame columns must be designed with high-temperature deformation in mind, typically using phosphorus-iron steel profiles and tightly hinged to the tank shell via high-strength welding. This design ensures the stability of the electrolytic cell while minimizing damage to the portal frame columns caused by deformation. Although the selection of materials and structural design of the portal frame columns take into account stability under high-temperature environments, in actual operation, due to the complex physicochemical reactions inside the electrolytic cell, the columns may still be subject to varying degrees of corrosion and deformation.

[0007] Existing structural stability designs often focus on overall stability while neglecting the reinforcement and protection of local areas of the column, which may lead to damage to the column due to excessive local stress under certain extreme working conditions. Utility Model Content

[0008] The purpose of this invention is to provide a convenient insulating protection device for the portal column during the start-up of an aluminum electrolysis cell, in order to solve the above-mentioned problems.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0010] A convenient insulating protective device for a portal-type column during the start-up of an aluminum electrolysis cell includes an iron shell and a detachable insulating plate. The iron shell is C-shaped and includes a back plate and side plates symmetrically arranged on both sides of the back plate. The detachable insulating plate is located at the open end of the iron shell. Iron sheets are evenly arranged between the two sides of the detachable insulating plate and the side plates. U-shaped insulating plates are respectively arranged on the inner walls of the two side plates, with the open ends of the U-shaped insulating plates facing the side plates and perpendicular to the side plates. Lugs are respectively arranged on the outer walls of the two side plates. An insulating clamp is arranged on the top surface of the back plate, and the top surface of the back plate is inserted into the open end of the insulating clamp. The axis of the insulating clamp is on the same plane as the back plate. Support legs are arranged at the bottom of the iron shell.

[0011] To further realize this utility model, the back plate and side plate are made of steel plates with a wall thickness of 3mm.

[0012] To further realize this utility model, the height of the back plate and side plate is 800mm, the width of the side plate is 580mm, and the width of the back plate is 360mm.

[0013] To further realize this utility model, the detachable insulating board has a length of 800mm, a width of 360mm, and a thickness of 3mm.

[0014] To further realize this utility model, the transverse axis of the U-shaped insulating plate is parallel to the top surface of the side plate.

[0015] To further realize this utility model, the distance between the U-shaped insulating plate and the top surface of the side plate is 200mm.

[0016] To further realize this utility model, the longitudinal axis of the U-shaped insulating plate overlaps with the longitudinal axis of the side plate.

[0017] To further realize this utility model, the horizontal axis of the grab ear is parallel to the top surface of the side plate.

[0018] To further realize this utility model, the width of the gripper is 60mm and the length is 120mm.

[0019] To further realize this utility model, the longitudinal axis of the grab ear overlaps with the longitudinal axis of the side plate.

[0020] The advantages of this utility model compared to the prior art are as follows:

[0021] The sheath designed with a "quick-release" structure in this utility model uses iron sheets to weld the detachable insulating plate to the end of the side wall. The method of removing the solder joints facilitates installation and disassembly without complicated operations, thereby simplifying the daily maintenance and repair process of the electrolytic cell.

[0022] In key parts of the iron shell, such as areas susceptible to corrosion or stress concentration, such as the side walls of the side plates and the top surface of the back plate, the present invention uses U-shaped insulating plates as reinforcing structures to improve the strength and corrosion resistance of these areas, thereby extending the service life of the present invention and protecting the column from damage.

[0023] This invention improves insulation performance: Made of a new type of high-temperature and corrosion-resistant material, this invention can maintain excellent insulation performance for a long time and effectively prevent damage to this invention from the high-temperature and highly corrosive environment inside the electrolytic cell.

[0024] This utility model simplifies the maintenance process: the detachable design and convenient installation accessories make the installation and disassembly process of this utility model easier, reducing the difficulty and cost of daily maintenance and repair of the electrolytic cell.

[0025] This invention enhances structural stability: through localized reinforcement and protection and a highly adaptable shape design, this invention can better adapt to the complex physicochemical reactions inside the electrolytic cell, reduce corrosion and deformation of the columns, and thus improve the overall stability of the electrolytic cell.

[0026] This utility model improves economic efficiency: Due to the extended service life and reduced maintenance costs of this utility model, it can significantly improve economic efficiency in practical applications. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0028] Figure 2 This is the front view of the present invention;

[0029] Figure 3 This is a rear view of the present invention;

[0030] Figure 4 This is a top view of the present invention;

[0031] Figure 5 This is a bottom view of the present invention;

[0032] Figure 6 This is the right view of the present invention;

[0033] The meanings of the symbols in the attached diagram are as follows: 1. Iron shell; 2. Removable insulating board; 3. Back plate; 4. Side plate; 5. Iron sheet; 6. U-shaped insulating board; 7. Grab; 8. Insulating clamp; 9. Support leg. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0035] As shown in 1-4, a convenient insulating protective device for a portal column during the start-up of an aluminum electrolysis cell includes an iron shell 1 and a detachable insulating plate 2. The iron shell 1 is C-shaped and includes a back plate 3 and side plates 4 symmetrically arranged on both sides of the back plate 3. The detachable insulating plate 2 is located at the open end of the iron shell 1. Iron sheets 5 are evenly arranged between the two sides of the detachable insulating plate 2 and the side plates 4. U-shaped insulating plates 6 are respectively arranged on the inner walls of the two side plates 4. The open ends of the U-shaped insulating plates 6 face the side plates 4 and are perpendicular to the side plates 4. The outer walls of the two side plates 4 are respectively provided with grab ears 7. An insulating clamp 8 is provided on the top surface of the back plate 3. The top surface of the back plate 3 is inserted into the open end of the insulating clamp 8. The axis of the insulating clamp 8 is on the same plane as the back plate 3. Support legs 9 are provided at the bottom of the iron shell 1.

[0036] The back plate 3 and side plate 4 are made of 3mm thick steel plates. The height of the back plate 3 and side plate 4 is 800mm, the width of the side plate 4 is 580mm, and the width of the back plate 3 is 360mm.

[0037] The removable insulating board 2 is 800mm long, 360mm wide, and 3mm thick.

[0038] The transverse axis of the U-shaped insulating plate 6 is parallel to the top surface of the side plate 4, the distance between the U-shaped insulating plate 6 and the top surface of the side plate 4 is 200mm, and the longitudinal axis of the U-shaped insulating plate 6 overlaps with the longitudinal axis of the side plate 4.

[0039] The horizontal axis of the grab ear 7 is parallel to the top surface of the side plate 4. The width of the grab ear 7 is 60mm and the length is 120mm. The vertical axis of the grab ear 7 overlaps with the vertical axis of the side plate 4.

Claims

1. A convenient insulating protection device for the gate-type column of an aluminum electrolytic cell during startup, characterized in that: The device includes an iron shell (1) and a detachable insulating plate (2). The iron shell (1) is "C" shaped and includes a back plate (3) and side plates (4) symmetrically arranged on both sides of the back plate (3). The detachable insulating plate (2) is located at the open end of the iron shell (1). Iron sheets (5) are evenly arranged between the two sides of the detachable insulating plate (2) and the side plates (4). U-shaped insulating plates (6) are respectively arranged on the inner walls of the two side plates (4). The open end of the U-shaped insulating plate (6) faces the side plate (4). The U-shaped insulating plate (6) is perpendicular to the side plate (4). The grab ears (7) are respectively arranged on the outer walls of the two side plates (4). An insulating clamp (8) is arranged on the top surface of the back plate (3). The top surface of the back plate (3) is inserted into the open end of the insulating clamp (8). The axis of the insulating clamp (8) is on the same plane as the back plate (3). Support legs (9) are arranged at the bottom of the iron shell (1).

2. An aluminium electrolytic cell start-up process cell door post portable insulation guard as claimed in claim 1 characterised in that: The back plate (3) and side plate (4) are made of steel plates with a wall thickness of 3mm.

3. An aluminium reduction cell start-up process cell door post portable insulation guard as claimed in claim 1 or 2 characterised in that: The height of the back plate (3) and the side plate (4) is 800mm, the width of the side plate (4) is 580mm, and the width of the back plate (3) is 360mm.

4. An aluminium reduction cell start-up process cell door post portable insulation guard as claimed in claim 3 characterised in that: The detachable insulating board (2) has a length of 800mm, a width of 360mm, and a thickness of 3mm.

5. An aluminium reduction cell start-up process cell door post portable insulation guard as claimed in claim 4 characterised in that: The transverse axis of the U-shaped insulating plate (6) is parallel to the top surface of the side plate (4).

6. An aluminium electrolytic cell start-up process cell door post portable insulation guard as claimed in claim 5, characterised in that: The distance between the top surface of the U-shaped insulating plate (6) and the side plate (4) is 200mm.

7. An aluminium reduction cell start-up process cell door post portable insulation guard as claimed in claim 6 characterised in that: The longitudinal axis of the U-shaped insulating plate (6) overlaps with the longitudinal axis of the side plate (4).

8. An aluminium electrolytic cell start-up process cell door post portable insulation guard as claimed in claim 7, characterised in that: The horizontal axis of the grab (7) is parallel to the top surface of the side plate (4).

9. The portable insulating protection device for the gate-type column of the aluminum electrolytic cell during the start-up process as described in claim 8, characterized in that: The width of the gripper (7) is 60mm and the length is 120mm.

10. An aluminium reduction cell start-up process cell door post portable insulation guard as claimed in claim 9, characterised in that: The longitudinal axis of the grab (7) overlaps with the longitudinal axis of the side plate (4).

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