Dismounting device for fuel gas roasting cover plate of aluminum electrolysis cell

Abstract

The utility model provides a dismounting device for a fuel gas roasting cover plate of an aluminum electrolysis cell, relates to the technical field of aluminum electrolysis production, and solves the technical problems that a high-temperature cover plate is easy to shake after being lifted by an existing cover plate lifting device, and potential safety hazards exist. The cover plate lifting device comprises a support, a fulcrum shaft arranged on the support and a lever rotationally arranged on the fulcrum shaft, one end of the lever is connected with a lifting hook used for lifting a cover plate through a lifting chain, the lifting hook is provided with a limiting chain used for tensioning and stabilizing the lifting hook, and the end, away from the lifting hook, of the limiting chain is connected to the support in a sliding mode. According to the utility model, long-distance operation of operators can be realized, the risks of high-temperature roasting, splashing scalding and personnel treading scalding in the operation process are effectively prevented, and the safety of the operators in the operation process is greatly improved; and the hoisting use and the fixing are more stable, and the safety of operation through the device is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum electrolysis production, and particularly relates to a device for disassembling a gas roasting cover plate of an aluminum electrolysis cell. Background Technique

[0002] The gas roasting method is a roasting method commonly adopted by major aluminum electrolysis enterprises in recent years due to its high efficiency, low consumption, energy conservation, and environmental protection. It has good energy-saving effects, but the disadvantages are that there are many combustion devices and a large amount of manpower is required for installation and disassembly. In the actual production of electrolytic aluminum, after the start-up is completed, the gas roasting cover plates (made of stainless steel) need to be removed one by one. Before the existing technology is used for removal, the operator needs to shovel out part of the electrolyte powder material covered by the roasting cover plate, directly wear heat-insulating gloves and hold the hanging ears of the roasting cover plate by hand, turn over the roasting cover plate and then clean the electrolyte covering material. In some places, after the electrolyte powder material is sintered at high temperature, the roasting cover plate is not easy to pull. The operator needs to use tools such as a crowbar to pry it loose, turn it over and clean the surface of the roasting cover plate, and then lift the roasting cover plate out of the specified position on the large surface for placement. During the process of the operator turning over the roasting cover plate, the operator faces problems such as the large weight, high temperature, and harsh operation environment of the roasting cover plate, long operation time of the workers, and high labor intensity. Due to operational errors or the workers holding the high-temperature handle for a long time, personal injury accidents such as burns, electric shock, object strikes, mechanical injuries, and other injuries may occur.

[0003] Therefore, as proposed in the patent with the publication number CN104577865A, a cable trench cover plate lifting device uses the lever principle to hook the cable cover plate, and uses the flexible steering function of the universal wheel to place the lifted cover plate on one side; and the position of the lever sleeve can be flexibly adjusted to facilitate the flexible operation of the staff, reduce the labor intensity of the staff; and the structure is simple, and the operation, disassembly, and assembly are convenient.

[0004] However, for the roasting cover plate with high temperature, after it is lifted by the lever, it cannot be well fixed, the cover plate itself will shake, and the lever fulcrum may also shake, resulting in unstable lifting and potential safety hazards. Content of the Utility Model

[0005] The purpose of the utility model is to provide a device for disassembling a gas roasting cover plate of an aluminum electrolysis cell to solve the technical problem that the existing cover plate lifting device is prone to shaking after lifting the high-temperature cover plate, resulting in potential safety hazards.

[0006] The embodiments of the utility model are realized through the following technical solutions:

[0007] A device for disassembling the gas baking cover of an aluminum electrolysis cell, comprising a bracket, a fulcrum shaft provided on the bracket, and a lever rotatably provided on the fulcrum shaft. One end of the lever is connected by a lifting chain to a hook for lifting the cover plate. The hook is provided with a limiting chain for tightening and stabilizing it, and the end of the limiting chain away from the hook is slidably connected to the bracket.

[0008] Preferably, it further includes a base for supporting and locking the bracket. The base is further provided with a rear stabilizer rod for limiting the rear end of the lever, and the rear stabilizer rod is provided with a card slot for limiting the lever.

[0009] Preferably, the rear stabilizer rod is further provided with a fixed hook chain for fixing the rear end of the lever and a pull rod for enhancing stability. The pull rod connects the bracket and the rear stabilizer rod.

[0010] Preferably, the base is further provided with rollers for moving and a rotating disk for rotating the bracket.

[0011] Preferably, the rotating disk is provided with a fixing member for fixing.

[0012] Preferably, the limiting chain is hinged to a slider, and the bracket is provided with a chute for slidably connecting the slider.

[0013] Preferably, the lever is provided with a lever sleeve for rotatably connecting to the fulcrum shaft, and the lever is slidably connected to the lever sleeve for adjusting the force arm.

[0014] Adopting this technical solution, the cover plate can be lifted by the hook and the lever for labor-saving operation at a long distance, effectively preventing the risks of high-temperature roasting, splashing and scalding, and personnel trampling and scalding during the operation process, and greatly improving the safety of employees during the operation process;

[0015] At the same time, during the process of lifting the cover plate, by sliding the slider in the chute, the horizontal pipe length of the limiting chain is controlled, and then the horizontal shaking of the hook and the cover plate is controlled, thus forming a potential safety hazard;

[0016] During the operation process after the cover plate is lifted, in order to maintain the lifted state of the cover plate, the rear end of the lever is fixed by the rear stabilizer rod at the rear end of the lever. The card slot holds the lever to prevent it from shaking left and right. The fixed hook chain hooks the rear end of the lever to prevent it from tilting and causing the hook and the cover plate at the front end to fall or even drop, resulting in a safety accident;

[0017] It completely solves the long-term production situation that during the anode lowering process when starting a gas-roasted cell, it is not easy to handle the short circuit of the roasting cover plate and the operators' bodies are directly exposed above the high-temperature molten liquid. By using the fulcrum and lever principle, this device can be rotated 360° over a long distance by simply hooking a handle at one end of the roasting cover plate, achieving the flipping of the roasting cover plate and the cleaning of the electrolyte powder covering material. It not only solves the problem that operators need to carry the heavy and high-temperature roasting cover plate for flipping and cleaning, avoiding the burning of labor protection supplies by holding the handle for a long time, but also solves the problems that the roasting cover plate is prone to slipping during the flipping and cleaning process, causing short circuit and sparking, and other injuries caused by improper force during cleaning. After cleaning, the operator only needs to rotate the pressure rod to place the roasting cover plate on the air grille plate for cooling, which is convenient for other personnel to carry it out, and to a certain extent solves the potential safety hazards of manual operation.

[0018] The technical solutions of the embodiments of the present utility model at least have the following advantages and beneficial effects:

[0019] 1. The present utility model can enable operators to work at a long distance, effectively preventing the risks of high-temperature roasting, splashing and scalding, and personnel trampling and scalding during the operation process, and greatly improving the safety of employees during the operation process;

[0020] 2. The present utility model has a simple and reliable structure, is easy to operate, has a fast installation, is flexible to use, can be quickly moved to be used when disassembling the roasting cover plate of a gas-roasted cell, and the operation is safe and reliable;

[0021] 3. The present utility model is easy to operate, can greatly reduce the labor intensity of operators, improve the working environment, and has a better effect;

[0022] 4. The present utility model is more stable when lifted and fixed, ensuring the safety of the operation through this device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0024] Figure 1 It is a schematic diagram of the overall structure of a device for disassembling the gas-roasted cover plate of an aluminum electrolysis cell provided in Embodiment 1 of the present invention;

[0025] Figure 2 It is a schematic diagram of the top view of the base of a device for disassembling the gas-roasted cover plate of an aluminum electrolysis cell provided in Embodiment 1 of the present invention;

[0026] Icon: 1. Base; 11. Roller; 2. Bracket; 21. Slide block; 22. Slide groove; 3. Fulcrum shaft; 4. Lever; 41. Lever sleeve; 5. Hook; 61. Suspension chain; 62. Limit chain; 7. Rear stabilizer bar; 71. Card slot; 72. Fixed hook chain; 8. Tie rod; 9. Rotating disk; 91. Fixed part. Detailed implementation mode

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0030] In the description of the present utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship when the product of this application is usually placed. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0031] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, if terms such as "set", "installed", "connected", "connected" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0032] Embodiment 1

[0033] An aluminum electrolytic cell gas baking cover disassembly device, including a bracket 2, a fulcrum shaft 3 provided on the bracket 2, and a lever 4 rotatably provided on the fulcrum shaft 3. One end of the lever 4 is connected by a lifting chain 61 to a hook 5 for lifting the cover. The hook 5 is provided with a limiting chain 62 for tightening and stabilizing it, and one end of the limiting chain 62 away from the hook 5 is slidably connected to the bracket 2.

[0034] In this embodiment, it also includes a base 1 for supporting and locking the bracket 2. The base 1 is also provided with a rear stabilizer rod 7 for limiting the rear end of the lever 4, and the rear stabilizer rod 7 is provided with a card slot 71 for limiting the lever 4.

[0035] In this embodiment, the rear stabilizer rod 7 is also provided with a fixing hook chain 72 for fixing the rear end of the lever 4 and a pull rod 8 for enhancing stability. The pull rod 8 links the bracket 2 and the rear stabilizer rod 7.

[0036] In this embodiment, the base 1 is also provided with rollers 11 for moving and a rotating disk 9 for rotating the bracket 2.

[0037] In this embodiment, the rotating disk 9 is provided with a fixing member 91 for fixing.

[0038] In this embodiment, the limiting chain 62 is hinged to a slider 21, and the bracket 2 is provided with a chute 22 for slidably connecting the slider 21.

[0039] In this embodiment, the lever 4 is provided with a lever sleeve 41 for rotatably connecting to the fulcrum shaft 3, and the lever 4 is slidably connected to the lever sleeve 41 for adjusting the force arm.

[0040] Adopting this technical solution, the cover can be lifted by the hook 5 and the lever 4 for labor-saving operation at a distance, effectively preventing the risks of high-temperature roasting, splashing scalding, and personnel trampling and scalding during the operation process, and greatly improving the safety of employees during the operation process;

[0041] At the same time, during the process of lifting the cover, by sliding the slider 21 in the chute 22, the horizontal tube length of the limiting chain 62 is controlled, and then the hook 5 and the cover are controlled to sway in the horizontal direction, thus forming a potential safety hazard;

[0042] During the operation process after the cover is lifted, in order to maintain the lifted state of the cover, the rear end of the lever 4 is fixed by the rear stabilizer rod 7 at the rear end of the lever 4. The card slot 71 clamps the lever to prevent it from swaying left and right, and the fixing hook chain 72 hooks the rear end of the lever 4 to prevent it from tilting and causing the hook 5 and the cover at the front end to fall or even drop, resulting in a safety accident;

[0043] It has completely solved the long-term production situation that during the anode lowering process when starting a gas roasting cell, it is not easy to handle the short circuit of the roasting cover plate, and the operator's body is directly exposed above the high-temperature molten liquid. By using the principle of the fulcrum and the lever 4, this device can be rotated 360° over a long distance by simply hooking a handle at one end of the roasting cover plate, achieving the flipping and cleaning of the electrolyte powder covering material on the roasting cover plate. It not only solves the problem that the operator has to carry the heavy and high-temperature roasting cover plate for flipping and cleaning, avoiding the burning of labor protection supplies by holding the handle for a long time, but also solves the problems that the roasting cover plate is prone to slipping during the flipping and cleaning process, causing short circuit and sparking, and other injuries caused by improper force during cleaning. After cleaning, the operator only needs to rotate the pressure rod to place the roasting cover plate on the air grille for cooling, which is convenient for other personnel to carry it out, and to a certain extent solves the potential safety hazards of manual operation.

[0044] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A device for disassembling the gas baking cover of an aluminum electrolysis cell, comprising a bracket (2), a fulcrum shaft (3) provided on the bracket (2), and a lever (4) rotatably provided on the fulcrum shaft (3), characterized in that: One end of the lever (4) is connected to a hook (5) for lifting the cover plate through a suspension chain (61). The hook (5) is provided with a limit chain (62) for tightening and stabilizing it. One end of the limit chain (62) away from the hook (5) is slidably connected to the bracket (2).

2. The aluminum electrolytic cell gas baking cover disassembly device according to claim 1, wherein: It further includes a base (1) for supporting and locking the bracket (2). The base (1) is further provided with a rear stabilizer rod (7) for limiting the rear end of the lever (4). The rear stabilizer rod (7) is provided with a card slot (71) for limiting the lever (4).

3. The aluminum electrolytic cell gas roasting cover disassembling device according to claim 2, characterized in that: The rear stabilizer rod (7) is further provided with a fixed hook chain (72) for fixing the rear end of the lever (4) and a pull rod (8) for enhancing stability. The pull rod (8) connects the bracket (2) and the rear stabilizer rod (7).

4. An aluminum electrolytic cell gas roasting cover disassembling device according to claim 2 or 3, characterized in that: The base (1) is further provided with rollers (11) for moving and a rotating disc (9) for rotating the bracket (2).

5. The aluminum electrolysis cell gas baking cover disassembly device according to claim 4, characterized in that: The rotating disc (9) is provided with a fixing member (91) for fixing.

6. A device for disassembling a gas roasting cover of an aluminum electrolysis cell according to any one of claims 1-3, characterized in that: The limit chain (62) is hinged to a slider (21). The bracket (2) is provided with a chute (22) for slidably connecting the slider (21).

7. A disassembly device for a gas baking cover of an aluminum electrolytic cell according to any one of claims 1-3, characterized in that: The lever (4) is provided with a lever sleeve (41) for rotatably connecting to the fulcrum shaft (3). The lever (4) is slidably connected to the lever sleeve (41) for adjusting the force arm.

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