A metal lithium filter mounting and dismounting device

By designing a lithium metal filter assembly and disassembly device that includes a long handle, an active disc, a driven disc, a transmission component, and a permanent magnet ring, the high-temperature safety hazards and operational complexity during the disassembly of lithium metal furnace filters were solved, enabling fast and safe filter assembly and disassembly, and improving production efficiency and safety.

CN224575592UActive Publication Date: 2026-07-31CHONGQING TIANQI LITHIUM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING TIANQI LITHIUM CO LTD
Filing Date
2025-08-05
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

The disassembly process of existing lithium metal furnace filters poses high-temperature safety hazards, is complex and inefficient, and is difficult to automate in a convenient and safe manner.

Method used

Design a filter assembly and disassembly device comprising a long handle, an active disc, a driven disc, a transmission component, a hexagonal sleeve, and a permanent magnet ring. This device enables rapid assembly and disassembly of the filter through remote operation and utilizes the permanent magnet ring to prevent the filter from falling out.

Benefits of technology

It improves operational safety, simplifies operating procedures, reduces human fatigue, lowers the risk of safety accidents, and improves production efficiency and equipment stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a lithium metal filter assembly and disassembly device, relating to the field of liquid metal processing technology. The aim is to provide a simple filter disassembly structure that allows for convenient operation in the high-temperature liquid lithium environment of a lithium metal furnace. The proposed technical solution includes a long handle, an active plate, and a driven plate. Both the active and driven plates are located on the side of the long handle, at opposite ends. The active plate drives the driven plate to rotate via a transmission component. A hexagonal sleeve for assembling and disassembling the online filter is fixedly installed on the outer side of the driven plate. This utility model effectively avoids safety accidents such as high-temperature burns and molten metal splashing, greatly improving operator safety, enabling rapid filter assembly and disassembly, significantly simplifying the filter assembly and disassembly process, and reducing operation steps and time.
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Description

Technical Field

[0001] This utility model relates to the field of liquid metal processing technology, specifically to a lithium metal filter assembly and disassembly device. Background Technology

[0002] The replacement of filters in existing lithium metal furnaces faces significant safety and efficiency challenges. Traditional processes require operators to open the furnace cover and bend over manually with a wrench to disassemble the filter. However, the working temperature around the furnace reaches over 180°C, causing operators to sweat excessively and posing a significant safety hazard: sweat dripping into the hot liquid lithium could trigger a violent reaction. Water reacting with lithium instantly generates hydrogen gas and releases a large amount of heat, potentially causing molten metal to splash or even explode. Furthermore, prolonged bending can lead to operator fatigue, and errors in manual operation can damage the filter's sealing surface, further increasing the risk of liquid lithium leakage. These operational pain points severely restrict the improvement of safety and automation levels in lithium metal production processes, urgently requiring innovative solutions to overcome the bottlenecks of traditional processes.

[0003] Utility model patent CN217511347U discloses a filter replacement device, including a supporting base plate, a first fixing seat for positioning the filter, a second fixing seat for positioning the filter pipeline, and a driving mechanism. A supporting side plate is connected to one side of the supporting base plate, the first fixing seat is disposed on the supporting base plate, and the second fixing seat is disposed on the supporting side plate. The driving mechanism is disposed on the supporting base plate. The driving mechanism connects to and drives the first fixing seat to move, thereby realizing the disassembly and assembly of the filter and the filter pipeline. This utility model achieves the disassembly and assembly of the filter and the filter pipeline by driving the filter to move through the driving mechanism. Although this solution considers long-distance filter removal, its structure is relatively complex and cannot be applied to the filter removal process in lithium metal furnaces, making it inconvenient for operators to operate. Utility Model Content

[0004] This utility model provides a lithium metal filter installation and removal device, aiming to provide a simple filter installation and removal structure that can be easily operated in the high-temperature liquid lithium environment of a lithium metal furnace.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] A lithium metal filter assembly and disassembly device includes: a long handle, an active plate, and a driven plate. The active plate and the driven plate are both disposed on the side of the long handle and are located at both ends of the long handle. The active plate drives the driven plate to rotate through a transmission component. A hexagonal sleeve for removing the filter is fixedly disposed on the outside of the driven plate.

[0007] Furthermore, the transmission component is a chain or a timing belt.

[0008] Furthermore, a cylindrical sleeve is coaxially arranged outside the hexagonal sleeve, and the open end of the cylindrical sleeve is located away from the driven plate.

[0009] Furthermore, the inner wall of the cylindrical sleeve is provided with a permanent magnet ring for magnetically attracting the online filter.

[0010] Furthermore, a rotating handle for rotating the drive disc is fixedly provided on the side of the drive disc.

[0011] Furthermore, a first fixed rod and a second fixed rod are respectively vertically arranged on the side of the long handle. A first bearing is fixed on the first fixed rod, and a driving disc is sleeved on the outside of the first bearing. A second bearing is fixed on the second fixed rod, and a driven disc is sleeved on the outside of the second bearing.

[0012] This utility model has the following beneficial effects:

[0013] In the operating environment of a lithium metal furnace, the temperature is extremely high and there are risks such as molten metal splashing. This device, with its long handle design, allows operators to perform filter installation and removal work without directly approaching the furnace. They can operate from a relatively safe distance, effectively avoiding safety accidents such as high-temperature burns and molten metal splashing, and greatly improving operator safety.

[0014] Previously, installing and removing online filters could require multiple people and various tools, making the process complex and time-consuming. This device, through the transmission design of the active and driven discs and transmission components, as well as the precise fit between the hexagonal sleeve and the filter, allows operators to quickly install and remove the filter simply by turning the handle, thus greatly simplifying the operation process and reducing the number of steps and time required.

[0015] During filter disassembly, the filter is prone to falling off due to loss of support after being removed from the furnace. A cylindrical sleeve is positioned outside the hexagonal sleeve, and its inner wall is equipped with a permanent magnet ring. When the filter is rotated by the hexagonal sleeve and removed from the furnace, the cylindrical sleeve's enveloping effect and the strong magnetic attraction generated by the permanent magnet ring firmly hold the filter inside the cylindrical sleeve. This effectively prevents the filter from falling into the furnace or other hazardous areas during disassembly, avoiding production interruptions, equipment damage, or even safety accidents caused by a fallen filter. Attached Figure Description

[0016] Figure 1 This is a perspective view of the lithium metal filter assembly and disassembly device of this utility model;

[0017] Figure 2 This is a side view of the lithium metal filter assembly / disassembly device of this utility model;

[0018] Figure 3 This is a schematic diagram of the cylindrical sleeve structure;

[0019] Figures 1 to 3 The reference numerals in the attached drawings are respectively: long handle 1, driving disc 2, driven disc 3, first bearing 4, second bearing 5, transmission component 6, cylindrical sleeve 7, open end 71, hexagonal sleeve 8, rotating handle 9, permanent magnet ring 10, first fixed rod 11, second fixed rod 12. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] In this utility model, the terms "longitudinal," "lateral," "vertical," "upper," "lower," "front," "rear," "left," "right," "top," and "bottom," etc., indicate the orientation or positional relationship based on the appendix. Figure 2 The orientation or positional relationship shown is for the purpose of describing the present invention only, and is not intended to 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 present invention.

[0022] Please refer to Figure 1-3 In the process of lithium metal smelting and casting, online filtration of the melt is necessary to ensure its purity. However, the assembly and disassembly of traditional filters are cumbersome and inefficient, and pose safety risks during assembly and disassembly. Therefore, this embodiment provides a lithium metal filter assembly and disassembly device, aiming to simplify the filter assembly and disassembly process and improve production efficiency and safety.

[0023] This utility model includes: a long handle 1, an active disc 2, and a driven disc 3. The active disc 2 and the driven disc 3 are both disposed on the side of the long handle 1 and are located at both ends of the long handle 1 respectively. The active disc 2 drives the driven disc 3 to rotate through the transmission component 6. A hexagonal sleeve 8 for installing and removing the online filter is fixedly disposed on the outside of the driven disc 3.

[0024] The long handle 1, serving as both a support and operating component of the entire device, must be designed with ergonomic principles in mind to ensure operator comfort during extended use. The length of the long handle 1 is customized based on the actual furnace height and operating space to ensure easy access and operation of the online filter. The long handle 1 is made of high-strength, corrosion-resistant alloy steel with an anti-slip surface treatment to enhance operational safety. The handheld end of the long handle 1 can be designed as an arc or triangle for comfortable prolonged gripping. The driving disc 2 and driven disc 3 are rotatably mounted on the sides of the long handle 1 and connected via a transmission component 6. The diameters of the driving disc 2 and driven disc 3 are designed according to actual needs, ensuring sufficient torque transmission capacity while avoiding excessive size that could hinder operation. The driving disc 2 and driven disc 3 are made of wear-resistant, high-temperature-resistant alloy materials with a hardened surface treatment to improve service life. The hexagonal sleeve 8, used for installing and removing the online filter, must consider the size and shape of the filter's hexagonal nut. The inner diameter of the hexagonal sleeve 8 is customized according to the size of the hexagonal nut of the filter to ensure that the sleeve can be tightly fitted into the nut for a secure connection. The hexagonal sleeve 8 is made of high-strength, corrosion-resistant alloy steel with a rust-proof surface treatment to improve its service life.

[0025] To increase the stability of power transmission between the driving disc 2 and the driven disc 3, the transmission component 6 is preferably a chain or a synchronous belt. In this embodiment, both the chain and the synchronous belt of the transmission component 6 have good power transmission performance and stability. The chain is a high-strength, wear-resistant roller chain, and the synchronous belt is a polyurethane synchronous belt with accurate tooth profile and smooth transmission. The length of the transmission component 6 is customized according to the distance between the driving disc 2 and the driven disc 3 to ensure the accuracy and efficiency of power transmission. At the same time, the transmission component 6 needs to be inspected and replaced regularly to prevent power transmission failure due to wear or aging.

[0026] In addition, to prevent the filter from falling off during disassembly, a cylindrical sleeve 7 is fitted on the outside of the hexagonal sleeve 8, with the open end 71 of the cylindrical sleeve 7 located on the side away from the driven plate 3.

[0027] To further prevent the filter from falling off during disassembly, a permanent magnet ring 10 is installed on the inner wall of the cylindrical sleeve 7 to magnetically attract the online filter, thus preventing it from falling off during disassembly. Meanwhile, the cylindrical sleeve 7 is made of a non-magnetic material, such as stainless steel or aluminum alloy, to avoid interfering with the magnetism of the permanent magnet ring 10.

[0028] To facilitate the operator's rotation of the drive disc 2, a rotating handle 9 is fixedly installed on the side of the drive disc 2. As a component for operating the drive disc 2, the design of the rotating handle 9 must fully consider ease of operation and comfort. The rotating handle 9 is made of high-strength, wear-resistant plastic or rubber material, with a non-slip surface treatment to improve operational safety. The length and diameter of the rotating handle 9 are designed according to actual needs, ensuring sufficient torque transmission capacity while avoiding inconvenience caused by excessive size. Furthermore, the rotating handle 9 can be welded to the drive disc 2 or a detachable connection can be used for easy replacement and maintenance.

[0029] To increase the rotational stability and smoothness of the driving disc 2 and the driven disc 3, and to reduce the wear of the components, a first fixing rod 11 and a second fixing rod 12 are respectively vertically arranged on the side of the long handle 1. The first bearing 4 is fixed on the first fixing rod 11, and the driving disc 2 is sleeved on the outside of the first bearing 4; the second bearing 5 is fixed on the second fixing rod 12, and the driven disc 3 is sleeved on the outside of the second bearing 5.

[0030] The driving disc 2 and the driven disc 3 are securely connected to the long handle 1 via the first bearing 4 and the second bearing 5, respectively. The first bearing 4 and the second bearing 5 are high-precision, low-friction rolling bearings to reduce energy loss and wear during rotation.

[0031] In the specific implementation of the device, the cylindrical sleeve 7 must first be placed in a suitable position on the online filter, ensuring that the operator can easily access the online filter through the device. Then, the hexagonal sleeve 8 is fitted onto the hexagonal nut of the online filter, ensuring a tight connection between the hexagonal sleeve 8 and the hexagonal nut. At this point, the operator rotates the drive disc 2 by turning the handle 9. The drive disc 2 drives the driven disc 3 to rotate together via the transmission component 6. The rotation of the driven disc 3 causes the cylindrical sleeve 7 and the hexagonal sleeve 8 to rotate, thereby removing the online filter from the furnace. During the disassembly process, the permanent magnet ring 10 inside the cylindrical sleeve 7 firmly holds the online filter in place, preventing it from falling off.

[0032] After the online filter is removed, the operator must continue rotating the drive disc 2 until the online filter has completely fallen into the cylindrical sleeve 7. At this point, the operator can remove the entire device from the furnace using the lifting handle 1. Then, the online filter is removed for cleaning or replacement. After cleaning or replacement, the online filter is then reinstalled into the furnace using the same device.

[0033] The lithium metal filter assembly / disassembly device described in this embodiment achieves rapid and stable assembly / disassembly of the online filter through the coordinated action of key components such as the long handle 1, the driving disc 2, the driven disc 3, the transmission component 6, the hexagonal sleeve 8, the cylindrical sleeve 7, and the rotating handle 9. This device has a simple structure, is easy to operate, and is safe and reliable, effectively improving production efficiency and product quality in the lithium metal smelting and casting process.

[0034] Furthermore, this embodiment fully considers ergonomic principles and operational safety in the design of the device. The long handle 1 is designed in accordance with ergonomic principles, allowing the operator to remain comfortable during prolonged use; the anti-slip treatment and detachable connection of the rotating handle 9 improve the convenience and safety of operation; the permanent magnet ring 10 inside the cylindrical sleeve 7 effectively prevents the online filter from falling off during disassembly.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lithium metal filter assembly / disassembly device, characterized in that, include: The long handle (1), the active disc (2) and the driven disc (3) are provided on the side of the long handle (1) and are located at both ends of the long handle (1). The active disc (2) is connected to the driven disc (3) through the transmission component (6). A hexagonal sleeve (8) for removing the filter is fixedly provided on the outside of the driven disc (3).

2. The lithium metal filter assembly / disassembly device according to claim 1, characterized in that, The transmission component (6) is a chain or a synchronous belt.

3. The lithium metal filter assembly / disassembly device according to claim 1, characterized in that, A cylindrical sleeve (7) is coaxially arranged outside the hexagonal sleeve (8), and the open end (71) of the cylindrical sleeve (7) is located away from the driven plate (3).

4. The lithium metal filter assembly / disassembly device according to claim 3, characterized in that, The inner wall of the cylindrical sleeve (7) is provided with a permanent magnet ring (10) for magnetically attracting the online filter.

5. The lithium metal filter assembly / disassembly device according to claim 1, characterized in that, The active disk (2) is fixedly provided with a rotating handle (9) for rotating the active disk (2) on its side.

6. The lithium metal filter assembly / disassembly device according to any one of claims 1 to 5, characterized in that, The long handle (1) is vertically provided with a first fixed rod (11) and a second fixed rod (12) on its side. A first bearing (4) is fixed on the first fixed rod (11), and the driving disc (2) is sleeved on the outside of the first bearing (4). A second bearing (5) is fixed on the second fixed rod (12), and the driven disc (3) is sleeved on the outside of the second bearing (5).