Novel upper part hoisting antimagnetic lifting appliance for overhauling electrolytic cell

Abstract

The utility model discloses a novel electrolytic cell overhaul upper part hoisting antimagnetic lifting appliance which comprises an aluminum electrolytic cell and two groups of hoisting structures respectively arranged at two ends of the aluminum electrolytic cell, each hoisting structure consists of a hoisting ring, an upper lifting appliance welding assembly and a lower lifting appliance welding assembly, the hoisting ring is connected with the upper lifting appliance welding assembly, and the hoisting ring is connected with the lower lifting appliance welding assembly. The upper lifting appliance welding assembly and the lower lifting appliance welding assembly are detachably connected, the two groups of lifting structures are respectively arranged at a flue end and an aluminum outlet end of the electrolytic cell, and the lifting ring, the upper lifting appliance welding assembly and the lower lifting appliance welding assembly are all made of white steel materials and are welded into a whole. The utility model belongs to the technical field of electrolytic bath lifting appliances, and particularly relates to a novel upper part lifting antimagnetic lifting appliance for overhauling an electrolytic bath.

Description

Technical Field

[0001] This utility model belongs to the technical field of electrolytic cell lifting tools, specifically referring to a new type of antimagnetic lifting tool for the upper lifting of an electrolytic cell during major overhauls. Background Technology

[0002] Because aluminum electrolysis production requires high-temperature molten electrolyte, the lining is affected by a variety of factors, resulting in a relatively short lifespan for the tank. Therefore, frequent overhauls are necessary. However, the lining of aluminum electrolysis tanks is heavy and inconvenient to transport, so most manufacturers use on-site repair methods. In order to ensure production days, it is necessary to improve the utilization efficiency of aluminum electrolysis tanks. Overhaul work usually has a short period of time and is time-sensitive. Since the working environment of aluminum electrolysis tanks has a strong magnetic field, this places special requirements on the design and performance of lifting equipment.

[0003] The existing steel plate lifting equipment poses safety hazards during installation due to magnetic field influences, including personnel injury from crushing and the risk of the busbar lapping onto the trench. Furthermore, abnormal sliding of the overhead crane hook can easily lead to trench tipping. In particular, the lifting equipment undergoes severe deformation over long-term operation. Additionally, the lifting lugs welded to the upper surface of the lifting beam are highly susceptible to tearing, increasing the risk of the upper part falling. Utility Model Content

[0004] In response to the above situation and to solve the aforementioned problems, it is particularly important to develop an antimagnetic lifting device suitable for the overhaul and hoisting of the upper part of an aluminum electrolytic cell. This utility model provides a novel antimagnetic lifting device for the overhaul and hoisting of the upper part of an electrolytic cell. It offers advantages such as convenient installation, avoiding difficulties in installation under high magnetic fields, preventing device deformation and tearing of the lifting lugs, and the addition of a safety rope to prevent falls in case of equipment malfunctions during use. Furthermore, it possesses the following characteristics:

[0005] Antimagnetic properties: The lifting gear material should have good antimagnetic properties to avoid being magnetized in a strong magnetic field environment, thus ensuring the stability and safety of the lifting gear;

[0006] High temperature resistance: The lifting gear material should have excellent high temperature resistance, be able to maintain strength and stability in high temperature environments, and not deform or oxidize and corrode;

[0007] Structural optimization: The structural design of the lifting equipment should be reasonable, which can reduce weight, improve load-bearing capacity and stability, while simplifying the installation and dismantling process, reducing operational complexity and safety hazards;

[0008] High reliability: The spreader should have high reliability, be able to operate stably for a long time, reduce failures and maintenance frequency, and reduce maintenance costs.

[0009] The technical solution adopted by this utility model is as follows: This utility model proposes a novel antimagnetic lifting device for the upper part of an electrolytic cell overhaul, including an aluminum electrolytic cell and two sets of lifting structures respectively located at both ends of the aluminum electrolytic cell. The lifting structure consists of a lifting ring, an upper lifting device welding assembly, and a lower lifting device welding assembly. The lifting ring is connected to the upper lifting device welding assembly, and the upper lifting device welding assembly is connected to the lower lifting device welding assembly for loading and unloading.

[0010] As an improvement to this scheme, the two sets of hoisting structures are respectively located at the flue end and the aluminum outlet end of the electrolytic cell.

[0011] As an improvement to this solution, the lifting ring, the upper lifting fixture welding assembly, and the lower lifting fixture welding assembly are all made of stainless steel and are welded together to form a whole.

[0012] The beneficial effects of this utility model by adopting the above structure are as follows:

[0013] 1. Equipment structure and manufacturing process, with main structural stiffeners to prevent deformation;

[0014] 2. The lifting lugs adopt an embedded circumferential welding method;

[0015] 3. Anti-tipping device for trough tilting accidents caused by abnormal sliding of the overhead crane fixed hook;

[0016] 4. It can be unaffected by high magnetic field environments, replacing the original steel plate lifting tools. During the installation process, the lifting tools may cause personnel injury due to magnetic field influence, and there are safety hazards such as busbars overlapping with the trough.

[0017] The above solutions solve the following problems:

[0018] Magnetic resistance issue: The working environment of aluminum electrolysis cells is usually in the presence of strong magnetic fields, which places special requirements on the materials of the lifting equipment. Ordinary steel may be magnetized in a strong magnetic field environment, which may lead to a decrease in the performance of the lifting equipment or create safety hazards. Therefore, how to ensure the stability and safety of the lifting equipment in a strong magnetic field environment is a technical challenge.

[0019] High temperature resistance issue: The working temperature of aluminum electrolysis cells is extremely high, close to 1,000 degrees Celsius. Such a high temperature environment poses a severe challenge to the high temperature resistance of lifting gear materials. Conventional materials may deform, lose strength, or oxidize and corrode at high temperatures, thus affecting the service life and safety performance of the lifting gear.

[0020] Load adaptability: The upper structure of the aluminum electrolysis cell has a complex shape and heavy weight, which places high demands on the load adaptability of the lifting equipment. The lifting equipment needs to be able to stably support and lift upper structures of various shapes and weights, while ensuring that no safety accidents such as slippage or tilting occur during the lifting process.

[0021] Maintenance cost issue: Although the patent literature does not directly mention maintenance costs, in practical applications, the long-term use of lifting equipment will inevitably bring about the need for maintenance and repair. How to reduce the maintenance cost of lifting equipment and improve its service life and reliability is an important issue that enterprises need to consider when selecting and using lifting equipment. Attached Figure Description

[0022] Figure 1 This is a front view schematic diagram of the overall structure of a novel antimagnetic lifting device for the upper part of an electrolytic cell during overhaul, as proposed in this utility model.

[0023] Figure 2 This is a side view structural diagram of a novel antimagnetic lifting device for the upper part of an electrolytic cell during major overhaul, as proposed in this utility model.

[0024] Figure 3 This is a top view schematic diagram of the overall structure of a novel antimagnetic lifting device for the upper part of an electrolytic cell during overhaul, as proposed in this utility model.

[0025] Among them, 1. aluminum electrolytic cell; 2. hoisting structure; 3. lifting ring; 4. upper lifting fixture welding assembly; 5. lower lifting fixture welding assembly.

[0026] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] like Figure 1 and Figure 2 As shown, the present invention proposes a novel antimagnetic lifting device for the upper part of an electrolytic cell during overhaul, comprising an aluminum electrolytic cell 1 and two sets of lifting structures 2 respectively located at both ends of the aluminum electrolytic cell 1. The lifting structure 2 consists of a lifting ring 3, an upper lifting device welding assembly 4, and a lower lifting device welding assembly 5. The lifting ring 3 is connected to the upper lifting device welding assembly 4, and the upper lifting device welding assembly 4 and the lower lifting device welding assembly 5 are connected for loading and unloading.

[0029] The two sets of hoisting structures 2 are respectively located at the flue end and the aluminum outlet end of the electrolytic cell.

[0030] The lifting ring 3, the upper lifting fixture welding assembly 4, and the lower lifting fixture welding assembly 5 are all made of stainless steel and are welded together to form a whole.

[0031] In practical use, the two sets of lifting structures 2 are respectively arranged at the flue end and aluminum outlet end of the aluminum electrolysis cell 1, so that the lifting rings 3 are respectively connected to the two hooks of a crane. This reduces the lateral length and lifting volume, and can be used for lifting the upper structure of the aluminum electrolysis cell 1 near the end corridor to the end corridor. It also avoids the situation of false welding caused by temporary welding of lifting lugs in a magnetic field environment. The above is the entire process of using the new type of anti-magnetic lifting device for the upper lifting of the electrolysis cell overhaul.

[0032] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A novel hoist for preventing magnetism during hoisting of an upper part of a pot for major repair, comprising an aluminum electrolysis pot (1) and two groups of hoisting structures (2) respectively arranged at both ends of the aluminum electrolysis pot (1), characterized in that: The lifting structure (2) is composed of a lifting ring (3), an upper lifting tool welded assembly (4) and a lower lifting tool welded assembly (5), wherein the lifting ring (3) is connected with the upper lifting tool welded assembly (4), and the upper lifting tool welded assembly (4) is detachably connected with the lower lifting tool welded assembly (5).

2. A new type of upper hoisting anti-magnetic lifting tool for the overhaul of an electrolytic cell, according to claim X, characterized in that: Two groups of the lifting structure (2) are respectively arranged at the flue end and the aluminum outlet end of the electrolytic cell.

3. A new type of magnetic lifting magnet lifting device for hoisting the upper part of a potshell during a major repair of an electrolytic cell, according to claim 1 or 2, characterized in that: The lifting ring (3), the upper lifting tool welded assembly (4) and the lower lifting tool welded assembly (5) are all made of white steel material and are welded to form an integral whole.

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