A heat preservation structure of an electrolytic cell for high-purity aluminum

Abstract

This invention discloses a heat preservation structure for an electrolytic cell used in high-purity aluminum, belonging to the technical field of electrolytic cell heat preservation structures. It includes an electrolytic cell body, with a heat preservation shell fixedly installed on the outside of the body. A heat preservation cavity is formed between the heat preservation shell and the electrolytic cell body. Detachable components are fixedly installed on the inner walls of both sides of the heat preservation shell, each including an insertion slot. The detachable components allow for convenient disassembly and assembly of the heat preservation layer, solving the problem of difficult maintenance and replacement of existing integral heat preservation structures. When the heat preservation layer is partially damaged or aged, rotating the knob on the outside of the heat preservation shell rotates a lead screw on one side. Through a belt pulley and a second belt, the lead screws on both sides rotate synchronously, causing a sliding block to move down the slot, releasing the support for the insertion block. The insertion block retracts into the slot under the action of a spring, allowing the heat preservation layer to be removed for replacement or repair without disassembling the entire structure, reducing maintenance difficulty and cost, and avoiding damage to the electrolytic cell body.

Description

Technical Field

[0001] This invention relates to the technical field of insulation structure for electrolytic cells used in high-purity aluminum, and particularly to an insulation structure for electrolytic cells used in high-purity aluminum. Background Technology

[0002] High-purity aluminum has excellent electrical conductivity, thermal conductivity and corrosion resistance, and is widely used in high-end fields such as electronics, aerospace, and new energy. Electrolysis is one of the main processes for preparing high-purity aluminum. During the electrolysis process, it is necessary to maintain a stable high-temperature environment in the electrolytic cell to ensure the molten state of the electrolyte and the continuous progress of the electrolysis reaction.

[0003] The existing insulation structure of high-purity aluminum electrolytic cells is mostly an integral fixed design, that is, the insulation material is directly built into or pasted on the outside of the cell body and the inside of the cell cover. This structure is not removable. If the local insulation material is damaged or aged, the entire insulation structure needs to be removed and replaced. This not only makes maintenance difficult and costly, but also easily damages the electrolytic cell body. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a heat preservation structure for high-purity aluminum electrolytic cells. This heat preservation structure can solve the problem that most existing heat preservation structures for high-purity aluminum electrolytic cells are integral fixed designs, that is, the heat preservation material is directly built into or pasted on the outside of the cell body and the inside of the cell cover. This structure is not removable. If the local heat preservation material is damaged or aged, the entire heat preservation structure needs to be removed and replaced. This not only makes maintenance difficult and costly, but also easily damages the electrolytic cell body.

[0005] To solve the above problems, the following technical solutions are provided: Design a heat preservation structure for an electrolytic cell used in high-purity aluminum, including an electrolytic cell body, an insulation shell fixedly installed on the outside of the electrolytic cell body, an insulation cavity formed between the insulation shell and the electrolytic cell body, detachable components fixedly installed on the inner walls of both sides of the insulation shell, the detachable components including insertion slots, the insertion slots being symmetrically distributed on one side of the inner wall of the insulation shell, a sliding groove formed on one side of the insertion slot, a rotating screw rotatably connected inside the insulation shell, the rotating screw being symmetrically distributed on one side of the insulation shell, a sliding block being threadedly connected to the outside of the rotating screw, the sliding block being adapted to the sliding groove, the top of the sliding block being movably connected to the bottom of the insertion slot, a pulley one being fixedly connected to the outside of the rotating screw, a belt being movably connected inside the pulley one, and a pulley two being movably connected to one end of the belt.

[0006] The above technical solution enables convenient disassembly and assembly of the insulation layer by setting up detachable components, solving the problem of difficult maintenance and replacement of existing integral insulation structures. When the insulation layer is partially damaged or aged, simply turn the rotating knob on the outside of the insulation shell to drive the rotating screw on one side to rotate. Through the transmission of pulley one, belt and pulley two, the rotating screws on both sides rotate synchronously, thereby driving the sliding block to move downward along the sliding groove, releasing the support on the insertion block. At this time, the insertion block retracts into the moving groove under the elastic action of the telescopic spring, and the insulation layer can be taken out from the insulation cavity for replacement or repair without dismantling the entire insulation structure, which greatly reduces the difficulty and cost of maintenance, and at the same time avoids damage to the electrolytic cell body during maintenance.

[0007] Furthermore, the second pulley is fixedly connected to the outside of the rotating screw on the other side. One end of the rotating screw extends out of the insulation shell and is fixedly connected to a rotating knob. The same detachable component is fixedly installed on one side of the insulation shell. An insulation layer is fixedly installed inside the insulation cavity. Several moving slots are opened on one side of the insulation layer. A telescopic spring is fixedly installed inside the several moving slots. An insertion block is fixedly connected to one end of the telescopic spring. The insertion block is adapted to the moving slot. The bottom of the insertion block is in contact with the top of the sliding block.

[0008] The above technical solution further optimizes the locking and unlocking mechanism of the detachable component by setting a cooperative structure between the telescopic spring and the insertion block. When the insulation layer needs to be installed, the insulation layer is placed into the insulation cavity, and the insertion block is aligned with the insertion slot. At this time, the sliding block is at the bottom of the insertion slot. Under the elastic force of the telescopic spring, the insertion block partially extends out of the moving slot and abuts against the top of the sliding block, completing the initial positioning. Then, the rotating knob is turned, which drives the sliding block to move upward along the sliding slot. The sliding block pushes the insertion block to be completely inserted into the insertion slot, realizing the firm fixation of the insulation layer and preventing the insulation layer from shifting due to vibration during the operation of the electrolytic cell. This structural design not only simplifies the installation steps, but also ensures the connection stability between the insulation layer and the insulation shell, effectively improving the overall reliability of the insulation structure.

[0009] Furthermore, an adhesive plate is fixedly connected to the inner side of the insulation layer, and the inner wall of the adhesive plate is bonded to the outer side of the electrolytic cell body. An insulation pipe is fixedly installed inside the insulation layer. A sealing groove is opened on the top of the insulation shell. A closing cover is movably installed on the top of the insulation shell. A sealing ring is fixedly connected to one side of the closing cover. The sealing ring is adapted to the sealing groove. Several threaded holes are opened on the top of the electrolytic cell body. Several fixing nuts are threadedly connected around the circumference of the closing cover. The fixing nuts are threadedly connected to the threaded holes.

[0010] The above technical solution improves the thermal insulation performance of the electrolytic cell by incorporating a bonding plate, insulation pipes, and a sealing structure. The bonding plate, made of high-temperature resistant elastic material, fits tightly against the outer surface of the electrolytic cell, eliminating air gaps between the insulation layer and the cell body and reducing heat loss due to air convection. The insulation pipes, evenly distributed within the insulation layer and filled with high-density aluminum silicate fiber, effectively block heat transfer, keeping temperature fluctuations within the electrolytic cell within ±5℃. Simultaneously, the sealing ring at the bottom of the sealing cover precisely engages with the sealing groove of the insulation shell, and is securely connected with a fixing nut and threaded hole, forming a fully enclosed insulation space. This prevents the intrusion of cold air from the outside, ensuring long-term efficient thermal insulation of the electrolytic cell and reducing electrolysis energy consumption costs.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This high-purity aluminum electrolytic cell insulation structure features a detachable component that allows for convenient disassembly and assembly of the insulation layer. This solves the problem of difficult maintenance and replacement of existing integral insulation structures. When the insulation layer is partially damaged or aged, simply turn the rotating knob on the outside of the insulation shell to rotate one side of the rotating screw. Through the transmission of pulley one, belt, and pulley two, the rotating screws on both sides rotate synchronously, thereby driving the sliding block to move downward along the sliding groove and releasing the support for the insertion block. At this time, the insertion block retracts into the moving groove under the elastic action of the telescopic spring, allowing the insulation layer to be removed from the insulation cavity for replacement or maintenance. There is no need to dismantle the entire insulation structure, which greatly reduces the difficulty and cost of maintenance and avoids damage to the electrolytic cell body during maintenance. 2. This high-purity aluminum electrolytic cell insulation structure further optimizes the locking and unlocking mechanism of detachable components by setting a cooperative structure of telescopic spring and insertion block. When the insulation layer needs to be installed, the insulation layer is placed into the insulation cavity, and the insertion block is aligned with the insertion slot. At this time, the sliding block is at the bottom of the insertion slot. Under the elastic force of the telescopic spring, the insertion block partially extends out of the moving slot and abuts against the top of the sliding block, completing the initial positioning. Then, the rotating knob is turned to drive the sliding block to move upward along the sliding slot. The sliding block pushes the insertion block to be completely inserted into the insertion slot, realizing the firm fixation of the insulation layer and preventing the insulation layer from shifting due to vibration during the operation of the electrolytic cell. This structural design not only simplifies the installation steps, but also ensures the connection stability between the insulation layer and the insulation shell, effectively improving the overall reliability of the insulation structure. 3. The insulation structure of this high-purity aluminum electrolytic cell improves its insulation performance through the use of a bonding plate, insulation pipes, and a sealing structure. The bonding plate, made of high-temperature resistant elastic material, fits tightly against the outer surface of the electrolytic cell body, eliminating air gaps between the insulation layer and the cell body and reducing heat loss due to air convection. The insulation pipes, evenly distributed within the insulation layer and filled with high-density aluminum silicate fiber, effectively block heat transfer, keeping the temperature fluctuation within the electrolytic cell within ±5℃. Simultaneously, the sealing ring at the bottom of the sealed cover plate precisely engages with the sealing groove of the insulation shell, and is securely connected with fixing nuts and threaded holes, forming a fully enclosed insulation space. This prevents the intrusion of cold air from the outside, ensuring long-term efficient insulation of the electrolytic cell and reducing electrolysis energy consumption costs. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a perspective view of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal three-dimensional structure of the present invention; Figure 3 This is an enlarged three-dimensional schematic diagram of a partial structure of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of the present invention; Figure 5 This is a three-dimensional structural diagram of the detachable component of the present invention; Figure 6 This is a partial cross-sectional three-dimensional structural diagram of the present invention.

[0013] In the diagram: 1. Electrolytic cell body; 2. Insulation shell; 3. Insulation cavity; 4. Detachable component; 5. Insulation layer; 6. Adhesive plate; 7. Insulation pipe; 8. Sealing groove; 9. Sealing cover plate; 10. Sealing ring; 11. Threaded hole; 12. Fixing nut; 401. Insertion groove; 402. Sliding groove; 403. Rotating screw; 404. Sliding block; 405. Belt pulley one; 406. Belt; 407. Belt pulley two; 408. Rotating knob; 409. Moving groove; 410. Telescopic spring; 411. Insertion block. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] like Figure 1 - Figure 6 As shown in the figure, this embodiment provides a heat preservation structure for an electrolytic cell used for high-purity aluminum, including an electrolytic cell body 1, an insulation shell 2 fixedly installed on the outside of the electrolytic cell body 1, an insulation cavity 3 formed between the insulation shell 2 and the electrolytic cell body 1, and detachable components 4 fixedly installed on the inner walls of both sides of the insulation shell 2. The detachable components 4 include insertion slots 401, which are symmetrically distributed on one side of the inner wall of the insulation shell 2. A sliding groove 402 is formed on one side of the insertion slots 401. A rotating screw 403 is rotatably connected inside the insulation shell 2, which is symmetrically distributed on one side of the insulation shell 2. A sliding block 404 is threadedly connected to the outside of the rotating screw 403. The sliding block 404 is adapted to the sliding groove 402. The top of the sliding block 404 is movably connected to the bottom of the insertion slot 401. A pulley 405 is fixedly connected to the outside of the rotating screw 403, and a belt is movably connected inside the pulley 405. 406, one end of belt 406 is movably connected to pulley 407. The detachable component 4 enables convenient disassembly and assembly of insulation layer 5, solving the problem of difficult maintenance and replacement of existing integral insulation structures. When insulation layer 5 is partially damaged or aged, simply turn the rotating knob 408 on the outside of the insulation shell 2 to rotate one side of the rotating screw 403. Through the transmission of pulley 405, belt 406 and pulley 407, the rotating screws 403 on both sides rotate synchronously, thereby driving the sliding block 404 to move downward along the sliding groove 402, releasing the support of the insertion block 411. At this time, the insertion block 411 retracts into the moving groove 409 under the elastic action of the telescopic spring 410, and the insulation layer 5 can be taken out from the insulation cavity 3 for replacement or maintenance without dismantling the entire insulation structure, greatly reducing the difficulty and cost of maintenance, and avoiding damage to the electrolytic cell body 1 during maintenance.

[0016] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, pulley 407 is fixedly connected to the outside of the rotating screw 403 on the other side. One end of the rotating screw 403 extends out of the insulation shell 2 and is fixedly connected to a rotating knob 408. The same detachable component 4 is fixedly installed on one side of the insulation shell 2. An insulation layer 5 is fixedly installed inside the insulation cavity 3. Several moving slots 409 are opened on one side of the insulation layer 5. A telescopic spring 410 is fixedly installed inside the several moving slots 409. An insertion block 411 is fixedly connected to one end of the telescopic spring 410. The insertion block 411 is adapted to the moving slot 409. The bottom of the insertion block 411 contacts the top of the sliding block 404. By setting the cooperation structure between the telescopic spring 410 and the insertion block 411, the locking and unlocking mechanism of the detachable component 4 is further optimized. When it is necessary to install... When installing insulation layer 5, place insulation layer 5 into insulation cavity 3, aligning insertion block 411 with insertion slot 401. At this time, sliding block 404 is at the bottom of insertion slot 401. Insertion block 411 partially extends out of moving slot 409 and abuts against top of sliding block 404 under the elastic force of telescopic spring 410, completing initial positioning. Then, rotate rotating knob 408 to drive sliding block 404 to move upward along sliding slot 402. Sliding block 404 pushes insertion block 411 to fully engage in insertion slot 401, achieving firm fixation of insulation layer 5 and preventing insulation layer 5 from shifting due to vibration during electrolytic cell operation. This structural design not only simplifies the installation steps but also ensures the connection stability between insulation layer 5 and insulation shell 2, effectively improving the overall reliability of the insulation structure.

[0017] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, an adhesive plate 6 is fixedly connected to the inner side of the insulation layer 5. The inner wall of the adhesive plate 6 is bonded to the outer side of the electrolytic cell body 1. An insulation pipe 7 is fixedly installed inside the insulation layer 5. A sealing groove 8 is provided on the top of the insulation shell 2. A sealing cover 9 is movably installed on the top of the insulation shell 2. A sealing ring 10 is fixedly connected to one side of the sealing cover 9. The sealing ring 10 is compatible with the sealing groove 8. Several threaded holes 11 are provided on the top of the electrolytic cell body 1. Several fixing nuts 12 are threaded around the sealing cover 9. The fixing nuts 12 are threadedly connected to the threaded holes 11. By setting the adhesive plate 6, the insulation pipe 7, and the sealing structure, the insulation performance of the electrolytic cell is improved. The adhesive plate 6 is made of high-temperature resistant elastic material and is tightly bonded to the outer surface of the electrolytic cell body 1, eliminating the air gap between the insulation layer 5 and the cell body and reducing heat loss caused by air convection. The insulation pipes 7 are evenly distributed within the insulation layer 5 and filled with high-density aluminum silicate fiber, effectively blocking heat transfer and keeping the temperature fluctuation inside the electrolytic cell within ±5℃. At the same time, the sealing ring 10 at the bottom of the sealing cover 9 is precisely fitted with the sealing groove 8 of the insulation shell 2, and is tightly connected with the fixing nut 12 and threaded hole 11 to form a fully enclosed insulation space, preventing the intrusion of cold air from the outside, ensuring long-term efficient insulation of the electrolytic cell, and reducing the cost of electrolysis energy consumption.

[0018] The working principle of the high-purity aluminum electrolytic cell insulation structure proposed in this embodiment is as follows: When applying this high-purity aluminum electrolytic cell insulation structure, firstly, the electrolytic cell body 1 should be placed stably in the designated work position. Then, the insulation layer 5 should be installed. Before installation, first confirm that the detachable components 4 on both sides of the insulation shell 2 are in the unlocked state—that is, rotate the knob 408 to the initial position, and slide the sliding block 404 down the sliding groove 402 to the bottom. Align the pre-made insulation layer 5 with the opening of the insulation cavity 3 and slowly push it into the insulation cavity 3. During the process, it is necessary to ensure... The insertion block 411 on one side of the insulation layer 5 is precisely aligned with the insertion slot 401 on the inner wall of the insulation shell 2. When the insulation layer 5 is fully embedded in the insulation cavity 3, the insertion block 411, under the elastic thrust of the telescopic spring 410, partially extends out of the moving slot 409 and abuts against the top of the sliding block 404. At this time, the insulation layer 5 completes its initial positioning and will not shift left or right within the insulation cavity 3. Next, the rotating knob 408 on the outside of the insulation shell 2 is rotated clockwise. Rotating the knob 408 drives the rotating screw 403 fixed to it to rotate. The external pulley 405 rotates synchronously, and through the transmission action of the belt 406, it drives the second pulley 407 to rotate, which in turn causes the rotating screw 403 on the other side to rotate synchronously. The synchronous rotation of the rotating screws 403 on both sides causes the externally threaded sliding block 404 to move smoothly upward along the sliding groove 402. During the upward process, the sliding block 404 gradually pushes the insertion block 411 into the insertion groove 401 until the top of the sliding block 404 is completely in contact with the bottom of the insertion groove 401. At this time, the insertion block 411 is supported by the sliding block 404. The insulation layer 5 is fully inserted into the insertion slot 401 and is firmly locked in the insulation cavity 3. Due to its high temperature resistance and elasticity, the inner bonding plate 6 is tightly attached to the outer surface of the electrolytic cell body 1, eliminating the air gap between the insulation layer 5 and the electrolytic cell body 1. Then, the top sealing operation is performed: the sealing cover 9 with the sealing ring 10 is aligned with the top opening of the insulation shell 2, so that the sealing ring 10 at the bottom of the sealing cover 9 is fully embedded in the sealing groove 8 at the top of the insulation shell 2. At this time, the edge of the sealing cover 9 is aligned with the top edge of the electrolytic cell body 1. Use a wrench to tighten the fixing nuts 12 around the sealing cover 9 in sequence, so that the fixing nuts 12 are tightly engaged with the threaded holes 11 on the top of the electrolytic cell body 1, until the sealing cover 9, the insulation shell 2, and the electrolytic cell body 1 form a seamless, fully enclosed structure. When the electrolytic cell starts to run, the insulation pipes 7 evenly distributed inside the insulation layer 5 can effectively block the heat generated by the electrolytic cell body 1 from being conducted outward, and the bonding plate 6 further suppresses the air convection heat dissipation between the insulation layer 5 and the cell body, so that the working temperature inside the electrolytic cell is stably maintained within the process requirements range, and the temperature fluctuation is controlled within ±5℃.If the insulation layer 5 is partially damaged or aged after long-term use and needs to be repaired or replaced, simply turn the knob 408 counterclockwise to move the sliding block 404 downward along the sliding groove 402, releasing the support for the insertion block 411. Under the contraction force of the telescopic spring 410, the insertion block 411 retracts into the moving groove 409, and the insulation layer 5 can be easily removed from the insulation cavity 3 without removing the insulation shell 2 and the sealing cover 9, which greatly shortens the repair and replacement time and reduces the impact on the normal production of the electrolytic cell.

[0019] In the description of this invention, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In the description of this invention, unless otherwise specified and limited, it should be noted that the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two elements; they can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0020] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. 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 heat preservation structure for an electrolytic cell used for high-purity aluminum, comprising an electrolytic cell body (1), characterized in that: An insulating shell (2) is fixedly installed on the outside of the electrolytic cell body (1). An insulating cavity (3) is provided between the insulating shell (2) and the electrolytic cell body (1). Detachable components (4) are fixedly installed on the inner walls of both sides of the insulating shell (2). The detachable components (4) include an insertion groove (401). The insertion groove (401) is symmetrically distributed on one side of the inner wall of the insulating shell (2). A sliding groove (402) is provided on one side of the insertion groove (401). A rotating screw (403) is rotatably connected inside the insulating shell (2). The rotating screw (403) is symmetrically distributed on one side of the insulating shell (2).

2. The heat preservation structure for a high-purity aluminum electrolytic cell according to claim 1, characterized in that: The rotating lead screw (403) is externally threaded with a sliding block (404), which is adapted to the sliding groove (402). The top of the sliding block (404) is movably connected to the bottom of the insertion groove (401).

3. The heat preservation structure for a high-purity aluminum electrolytic cell according to claim 2, characterized in that: The rotating lead screw (403) is externally fixedly connected to a pulley (405), and a belt (406) is movably connected inside the pulley (405). One end of the belt (406) is movably connected to a pulley (407).

4. The heat preservation structure for a high-purity aluminum electrolytic cell according to claim 3, characterized in that: The second pulley (407) is fixedly connected to the outside of the rotating screw (403) on the other side. One end of the rotating screw (403) extends out of the heat insulation shell (2) and is fixedly connected to a rotating knob (408). The same detachable component (4) is fixedly installed on one side of the heat insulation shell (2).

5. The heat preservation structure for a high-purity aluminum electrolytic cell according to claim 4, characterized in that: An insulation layer (5) is fixedly installed inside the insulation cavity (3). Several moving grooves (409) are opened on one side of the insulation layer (5), and a telescopic spring (410) is fixedly installed inside the several moving grooves (409).

6. The heat preservation structure for a high-purity aluminum electrolytic cell according to claim 5, characterized in that: One end of the telescopic spring (410) is fixedly connected to an insertion block (411), which is adapted to the moving groove (409), and the bottom of the insertion block (411) is in contact with the top of the sliding block (404).

7. The heat preservation structure for a high-purity aluminum electrolytic cell according to claim 6, characterized in that: The inner side of the insulation layer (5) is fixedly connected to the bonding plate (6), the inner wall of the bonding plate (6) is bonded to the outer side of the electrolytic cell body (1), the insulation layer (5) is fixedly installed with the insulation pipe (7), the top of the insulation shell (2) is provided with a sealing groove (8), and the top of the insulation shell (2) is movably installed with a sealing cover plate (9).

8. The heat preservation structure for a high-purity aluminum electrolytic cell according to claim 7, characterized in that: A sealing ring (10) is fixedly connected to one side of the closed cover plate (9). The sealing ring (10) is adapted to the sealing groove (8). Several threaded holes (11) are opened on the top of the electrolytic cell body (1). Several fixing nuts (12) are threaded around the closed cover plate (9). The fixing nuts (12) are threaded to the threaded holes (11).

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