Hard flexible guide rod sealing device for aluminum electrolytic cell

Abstract

The utility model discloses a hard flexible guide rod sealing device for aluminum electrolytic cell, including two around in the guide rod both sides's "7" type structure unit, and each unit is by phenolic resin main part, spring, "7" type crook baffle and stainless steel screw rod and is composed, "7" type crook baffle is welded on electrolytic cell upper horizontal board, and stainless steel screw rod passes through crook baffle middle hole and is connected with phenolic resin main part, and spring is installed on screw rod and provides elastic support. When the anode guide rod enters, the phenolic resin main part is pushed away, and the spring is compressed, when the guide rod is completely entered, the spring resets the phenolic resin main part through the elastic potential, realizes the sealing, and the two "7" type structure units adopt the virtual connection mode and are connected, and the sealing area can be adjusted to adapt to the anode guide rod of different size. The utility model can solve the poor sealing effect, short service life and frequent dismounting etc. of prior art, has the advantages of reducing the labor intensity of workers, improving the sealing reliability, reducing the production cost etc.

Description

Technical Field

[0001] This utility model relates to a rigid-flexible guide rod sealing device for aluminum electrolysis cells, belonging to the technical field of auxiliary tools for aluminum electrolysis cell production. Background Technology

[0002] In the electrolytic aluminum production process, various sealing devices are added to the electrolytic cell to reduce emissions and achieve green and environmentally friendly production. The anode guide rod seal is a crucial component. Traditional aluminum electrolytic cell guide rod sealing structures typically involve stuffing sealing strips into the gap between the guide rod and the horizontal plate. However, this sealing method has the following problems:

[0003] (1) Durability of sealing materials: Traditional sealing strips or rubber gaskets are prone to aging and deformation under high temperature conditions, resulting in a decrease in sealing effect. In the electrolytic aluminum production process, the internal temperature of the electrolytic cell is usually as high as several hundred degrees Celsius. This high temperature environment places extremely high demands on the heat resistance and thermal insulation performance of sealing materials. Sealing strips are prone to becoming brittle and breaking under high temperature, while rubber gaskets are prone to softening and deformation, thus losing their sealing effect.

[0004] (2) Frequent replacement and maintenance: Due to the continuous consumption and replacement of the anode, the guide rod needs to frequently enter and exit the electrolytic cell. Each time the anode is replaced, the sealing strip or rubber gasket needs to be removed and reinstalled. This process is not only time-consuming and labor-intensive, but also increases the labor intensity of workers. In addition, frequent disassembly and reassembly can easily lead to damage to the sealing material, further reducing the sealing effect.

[0005] (3) Burning phenomenon: During the replacement of anodes, the sealing strips or rubber gaskets are easily burned by high temperature. This not only leads to the waste of sealing materials, but may also cause production accidents, affecting the production efficiency and safety of enterprises, and increasing the production costs of enterprises.

[0006] Therefore, developing and designing a new type of sealing device that eliminates the need for repeated disassembly and assembly and is less prone to burnout, thereby improving the reliability and stability of the seal, reducing maintenance workload, and lowering production costs, is of great significance for the green development of the electrolytic aluminum industry. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a rigid flexible guide rod sealing device for aluminum electrolysis cells, which addresses the shortcomings of existing technologies and solves the problems of poor sealing effect, short service life and frequent disassembly and assembly in existing technologies. It is specifically used for sealing the anode guide rod of electrolysis cells, eliminating the need for repeated disassembly and assembly and making it less prone to burnout, which is conducive to green, environmentally friendly and low-carbon production in electrolysis workshops.

[0008] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0009] A sealing device for a rigid-flexible guide rod in an aluminum electrolytic cell includes two "7"-shaped structural units surrounding both sides of the guide rod. Each "7"-shaped structural unit includes a phenolic resin body, a spring, a "7"-shaped bend baffle, and a stainless steel screw. The "7"-shaped bend baffle is welded to a horizontal plate on the upper part of the electrolytic cell. One end of the stainless steel screw passes through the middle hole of the "7"-shaped bend baffle and connects to the phenolic resin body. The spring, a compression spring, is installed on the stainless steel screw between the phenolic resin body and the "7"-shaped bend baffle to provide elastic support. When the anode is lowered into the cell, the elastic potential energy of the spring resets the phenolic resin body, thus sealing the anode guide rod.

[0010] Preferably, the two “7” shaped structural units are connected by a loose connection or an adjustable connector, which can open and close according to the actual size of the guide rod, thereby adjusting the sealing area to accommodate anode guide rods of different sizes.

[0011] Preferably, the adjustable connector is an elastic connector that can automatically adjust the distance between the two “7” shaped structural units according to the size change of the anode guide rod, ensuring that the sealing device fits tightly with the anode guide rod.

[0012] Preferably, the anode guide rod entry point of the phenolic resin body is designed with an arc structure to facilitate the smooth entry of the anode guide rod, further improving the practicality and convenience of the device.

[0013] Preferably, the phenolic resin body has good heat resistance and thermal insulation properties, and can withstand high temperature environments of at least 250°C. It also has high strength and hardness, and can withstand greater impact and pressure. The thickness of the phenolic resin body is 2cm, which facilitates bolt drilling.

[0014] The stainless steel screw 5 is of specification M10 and is made of stainless steel, which can effectively avoid rusting caused by flue gas corrosion and ensure the long-term stable operation of the device.

[0015] Preferably, the "7"-shaped bend baffle is made of stainless steel, which has strong magnetic resistance and high temperature resistance. It is welded to the horizontal plate on the upper part of the electrolytic cell and together with the stainless steel screw and the phenolic resin body, it forms a unit, which enhances the stability and reliability of the device.

[0016] Preferably, the spring, in its relaxed state, matches the area of ​​the groove in the anode guide rod. It needs to be inspected and lubricated regularly to ensure its flexibility and elastic tension, thus ensuring the device can work properly.

[0017] Installation process of this utility model:

[0018] (1) Welding “7” shaped bend baffles: Weld the two “7” shaped bend baffles onto the horizontal plate on the upper part of the electrolytic cell respectively, ensuring that their positions are accurate and the welding is firm;

[0019] (2) Install stainless steel screw: Pass one end of the stainless steel screw through the middle hole of the “7” shaped bend baffle to ensure that the screw can move freely;

[0020] (3) Install the spring: Install the spring on the stainless steel screw to ensure that the spring can be freely compressed and extended;

[0021] (4) Install the phenolic resin body: Install the phenolic resin body at the other end of the stainless steel screw 5, ensuring that it can move along the screw;

[0022] (5) Connecting two “7” shaped structural units: Using a loose connection or an adjustable connector, the two “7” shaped structural units are connected together, allowing the two units to open and close according to the actual size of the guide rod, thereby adjusting the sealing area to accommodate anode guide rods of different sizes.

[0023] The working principle of this utility model:

[0024] (1) When the anode guide rod enters: When the anode guide rod enters the electrolytic cell, the phenolic resin body is pushed open and the spring is compressed; the stainless steel screw moves along its axis, allowing the movement of the phenolic resin body; due to the use of a loose connection or adjustable connector, the two “7” shaped structural units can automatically adjust the opening and closing degree according to the actual size of the anode guide rod, ensuring that the sealing device can fit tightly against the anode guide rod.

[0025] (2) After the anode guide rod is fully inserted: When the anode guide rod is fully inserted into the electrolytic cell, the spring will reset the phenolic resin body through its elastic potential energy, and the stainless steel screw will also be reset. The anode guide rod entry point of the phenolic resin body is designed with an arc structure to facilitate the smooth entry of the anode guide rod and further improve the practicality and convenience of the device. Through the elastic support of the spring and the flexible adjustment of the interlocking method, the sealing device can fit tightly against the anode guide rod to achieve a reliable sealing effect.

[0026] In this invention, the anode enters the groove through the arc-shaped inlet, and then pushes the phenolic resin to open the left and right sides. After the entire anode guide rod enters, the spring closes the two pieces of phenolic resin according to the elastic potential energy, achieving the purpose of sealing, without the need for manual back-and-forth installation and sealing.

[0027] Maintenance and care of this utility model:

[0028] (1) Regularly check the springs: Regularly check the springs' elasticity and wear to ensure they are working properly. If the springs are found to have decreased elasticity or are damaged, they should be replaced promptly.

[0029] (2) Check the connection parts: Regularly check the connection parts of the stainless steel screw and the “7” shaped bend baffle to ensure that they are tight and reliable and that there is no looseness.

[0030] (3) Cleaning and maintenance: Clean the sealing device regularly to remove dust and impurities from the surface and ensure the normal operation of the device; in particular, the surface of the phenolic resin body should be kept clean to ensure its good sealing performance.

[0031] The positive and beneficial effects of this utility model are as follows:

[0032] 1. Significantly reduces the labor intensity of workers: Traditional sealing devices require disassembly and assembly each time the anode is replaced, a process that is not only cumbersome but also increases the labor intensity of workers. This invention, by adopting an elastic support structure (such as a spring) and a loose connection method, achieves automatic reset and size adjustment of the sealing device, eliminating the need for frequent manual disassembly and assembly, and significantly reducing the labor intensity of workers.

[0033] 2. High-Temperature Resistance of the Phenolic Resin Body: The phenolic resin body possesses excellent heat resistance and insulation properties, capable of withstanding high-temperature environments of at least 250°C, and is not prone to aging or deformation at high temperatures. The use of this material not only extends the service life of the sealing device but also reduces production interruptions and maintenance costs caused by sealant damage. Furthermore, the high strength and hardness of phenolic resin enable it to withstand significant impact and pressure, further enhancing the stability and reliability of the sealing device.

[0034] 3. Reliability and stability of the seal: By employing an elastic support structure (such as a spring) and a loose connection method, this invention can automatically adjust the sealing area according to the actual size of the anode guide rod, ensuring a tight fit between the sealing device and the anode guide rod, effectively improving the reliability and stability of the seal. The elastic support structure automatically compresses when the anode guide rod enters and automatically resets after the anode guide rod is fully inserted, achieving rapid sealing, reducing flue gas leakage, lowering energy consumption, and meeting the requirements of green and environmentally friendly production.

[0035] 4. Reduced production costs: This utility model significantly reduces production costs by reducing the maintenance time and replacement frequency of the sealing device; the high temperature resistance and long life of phenolic resin reduce material waste, further reducing production costs; the use of stainless steel screws and "7"-shaped bend baffles enhances the stability and reliability of this utility model, effectively avoids rusting problems caused by flue gas corrosion, further extends the service life of this utility model, and reduces maintenance costs.

[0036] 5. Improved production efficiency: Since there is no need to frequently disassemble and assemble the sealing device, workers can devote more time and energy to other production processes, thereby improving overall production efficiency; and the rapid response capability of the elastic support structure and adjustable connectors makes the replacement process of the anode guide rod faster, reducing the production interruption time caused by anode replacement, and further improving production efficiency.

[0037] 6. Enhanced safety in the production process: By reducing the number of times the sealing device is manually disassembled and assembled, the frequency of workers working in dangerous environments such as high temperature and high pressure is reduced, thereby reducing the risk of safety accidents caused by improper operation or equipment failure; the stable and reliable sealing effect reduces the possibility of high temperature and high pressure gas leakage in the electrolytic cell, ensuring a safe environment at the production site.

[0038] 7. Extended equipment lifespan: The phenolic resin body and stainless steel bend plates and screws have high temperature resistance and corrosion resistance, enabling long-term stable operation in harsh working environments, reducing wear and damage, thus extending the equipment's lifespan and lowering equipment replacement costs. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the structure of this utility model. In the diagram, the two “7” shaped structural units are connected in a loose manner.

[0040] In the diagram: 1--Phenolic resin body, 2--Spring, 3--"7" shaped bend baffle, 4--Arc structure, 5--Stainless steel bolt, 6--Loose joint. Detailed Implementation

[0041] The present invention will be further explained and described below with reference to the accompanying drawings and specific embodiments:

[0042] Example 1: See Figure 1 A rigid-flexible guide rod sealing device for an aluminum electrolytic cell includes two "7"-shaped structural units surrounding both sides of the guide rod. Each "7"-shaped structural unit includes a phenolic resin body 1, a spring 2, a "7"-shaped bend baffle 3, and a stainless steel screw 5. The "7"-shaped bend baffle 3 is welded to a horizontal plate on the upper part of the electrolytic cell. One end of the stainless steel screw 5 passes through the middle hole of the "7"-shaped bend baffle 3 and connects to the phenolic resin body 1. A spring 2 is installed on the stainless steel screw 5 between the phenolic resin body 1 and the "7"-shaped bend baffle 3. The spring 2 is a compression spring that provides elastic support. When the anode is lowered into the cell, the elastic potential energy of the spring 2 resets the phenolic resin body 1, thereby sealing the anode guide rod.

[0043] The two “7” shaped structural units are connected in a loose manner (not connected, and the two units are relatively independent of each other), which can open and close according to the actual size of the guide rod, thereby adjusting the sealing area to adapt to anode guide rods of different sizes.

[0044] The anode guide rod entry point of the phenolic resin body 1 is designed with an arc structure 4, which facilitates the smooth entry of the anode guide rod and further improves the practicality and convenience of the device.

[0045] The phenolic resin body 1 has good heat resistance and thermal insulation properties, and can withstand high temperature environments of at least 250°C. It also has high strength and hardness, and can withstand greater impact and pressure. The thickness of the phenolic resin body 1 is 2cm, which facilitates bolt drilling.

[0046] The stainless steel screw 5 is M10 and made of stainless steel, which can effectively avoid rusting caused by flue gas corrosion and ensure the long-term stable operation of the equipment.

[0047] The “7”-shaped bend baffle 3 is made of stainless steel and has strong magnetic resistance and high temperature resistance. It is welded to the horizontal plate on the upper part of the electrolytic cell and together with the stainless steel screw 5 and the phenolic resin body 1, it forms a unit, which enhances the stability and reliability of the device.

[0048] Installation process of the rigid-flexible guide rod sealing device for the aluminum electrolysis cell:

[0049] (1) Welding “7” shaped bend baffles: Weld the two “7” shaped bend baffles 3 onto the horizontal plate on the upper part of the electrolytic cell respectively, ensuring that their positions are accurate and the welding is firm;

[0050] (2) Install stainless steel screw: Pass one end of stainless steel screw 5 through the middle hole of the “7” shaped bend baffle to ensure that the screw can move freely;

[0051] (3) Install spring 2: Install spring on stainless steel screw 5 to ensure that spring 2 can be freely compressed and extended;

[0052] (4) Install the phenolic resin body: Install the phenolic resin body 1 at the other end of the stainless steel screw 5, ensuring that it can move along the screw;

[0053] (5) Connecting two “7” shaped structural units: The two “7” shaped structural units are connected together by a loose connection method, allowing the two units to open and close according to the actual size of the guide rod, thereby adjusting the sealing area to adapt to anode guide rods of different sizes.

[0054] The working principle is as follows:

[0055] (1) When the anode guide rod enters: When the anode guide rod enters the electrolytic cell, the phenolic resin body is pushed open and the spring is compressed; the stainless steel screw 5 moves along its axis, allowing the phenolic resin body 1 to move; due to the use of the interlocking method, the two “7” shaped structural units can automatically adjust the opening and closing degree according to the actual size of the anode guide rod, ensuring that the sealing device can fit tightly against the anode guide rod.

[0056] (2) After the anode guide rod is fully inserted: When the anode guide rod is fully inserted into the electrolytic cell, the spring 2 resets the phenolic resin body 1 through its elastic potential energy, and the stainless steel screw 5 is also reset. The anode guide rod entry point of the phenolic resin body 1 is designed as an arc structure 4, which facilitates the smooth entry of the anode guide rod and further improves the practicality and convenience of the device. Through the elastic support of the spring and the flexible adjustment of the interlocking method, the sealing device can fit tightly against the anode guide rod to achieve a reliable sealing effect.

[0057] In this invention, the anode enters the groove from the entrance of the arc structure 4, and then pushes the phenolic resin body to open the left and right sides. After the entire anode guide rod enters, the spring 2 closes the two pieces of phenolic resin 1 according to the elastic potential energy, so as to achieve the purpose of sealing without the need for manual back-and-forth installation and sealing.

[0058] Example 2: The structure of this example is basically the same as that of Example 1, and the similarities will not be repeated. The difference is that an adjustable connector is used between the two "7"-shaped structural units, which can automatically adjust the sealing area according to the actual size of the anode guide rod, ensuring that the sealing device fits tightly with the anode guide rod, effectively improving the reliability and stability of the seal. No drawings are provided in this example; the connection method is conceived by those skilled in the art based on this function and is existing technology, so it will not be described further.

[0059] The foregoing has shown and described the basic principles, main features and advantages of this utility model. For those skilled in the art, various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model, which is defined by the appended claims and their equivalents.

Claims

1. A sealing device for a rigid-flexible guide rod in an aluminum electrolysis cell, characterized in that: The guide rod sealing device includes two “7” shaped structural units surrounding both sides of the guide rod. Each “7” shaped structural unit includes a phenolic resin body (1), a spring (2), a “7” shaped bend baffle (3), and a stainless steel screw (5). The “7” shaped bend baffle (3) is welded to the horizontal plate on the upper part of the electrolytic cell. One end of the stainless steel screw (5) passes through the middle hole of the “7” shaped bend baffle (3) and is connected to the phenolic resin body (1). The spring (2) is installed on the stainless steel screw (5) between the phenolic resin body (1) and the “7” shaped bend baffle (3). The spring (2) is a compression spring that provides elastic support. When the anode is lowered into the cell, the elastic potential energy of the spring (2) resets the phenolic resin body (1) and achieves the sealing of the anode guide rod.

2. The rigid-flexible guide rod sealing device for aluminum electrolytic cells according to claim 1, characterized in that: The two "7"-shaped structural units are connected by a loose connection or an adjustable connector, which can open and close according to the actual size of the guide rod, thereby adjusting the sealing area to accommodate anode guide rods of different sizes.

3. The rigid-flexible guide rod sealing device for aluminum electrolytic cells according to claim 2, characterized in that: The adjustable connector is an elastic connector that can automatically adjust the distance between the two "7" shaped structural units according to the size change of the anode guide rod, ensuring that the sealing device fits tightly with the anode guide rod.

4. The rigid-flexible guide rod sealing device for aluminum electrolytic cells according to claim 1, characterized in that: The anode guide rod entry point of the phenolic resin body (1) is designed with an arc structure (4) to facilitate the smooth entry of the anode guide rod and further improve the practicality and convenience of the device.

5. The rigid-flexible guide rod sealing device for aluminum electrolytic cells according to claim 1, characterized in that: The phenolic resin body (1) has good heat resistance and heat insulation properties, and can withstand a high temperature environment of at least 250°C. It also has high strength and hardness, and can withstand greater impact and pressure. The thickness of the phenolic resin body (1) is 2cm, which is convenient for bolt drilling.

6. The rigid-flexible guide rod sealing device for aluminum electrolytic cells according to claim 1, characterized in that: The stainless steel screw (5) is of specification M10 and is made of stainless steel, which can effectively avoid rusting caused by flue gas corrosion and ensure the long-term stable operation of the device.

7. The rigid-flexible guide rod sealing device for aluminum electrolytic cells according to claim 1, characterized in that: The "7"-shaped bend baffle (3) is made of stainless steel and has strong magnetic resistance and high temperature resistance. It is welded to the horizontal plate on the upper part of the electrolytic cell and together with the stainless steel screw (5) and the phenolic resin body (1) form a unit, which enhances the stability and reliability of the device.

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