Production equipment for synthesizing lithium iron phosphate by hydrothermal method

By designing an automatic lid-opening adjustment structure and an easily movable auxiliary structure on the reactor, the safety hazards of manual operation under high temperature and high pressure conditions have been solved, and safety and efficiency have been improved.

CN224147732UActive Publication Date: 2026-04-21SICHUAN SHENGHONGHUI NEW ENERGY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN SHENGHONGHUI NEW ENERGY TECH CO LTD
Filing Date
2025-05-19
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing reactors require manual opening of the lid under high temperature and high pressure conditions, posing safety hazards such as burns and pressure leaks.

Method used

A hydrothermal synthesis equipment for lithium iron phosphate was designed, which includes an adjustment structure and an auxiliary structure. The reactor lid is automatically opened through the adjustment structure, avoiding manual operation, and the auxiliary structure facilitates the movement of the reactor.

Benefits of technology

It improves operational safety, reduces human error, lowers labor intensity, and increases work efficiency and the smoothness of the production process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of lithium battery raw material production equipment, in particular to production equipment for synthesizing lithium iron phosphate by a hydrothermal method. Comprising a reaction kettle, a kettle cover, a feeding port, an adjusting structure and an auxiliary structure, the kettle cover is fixed to the upper surface of the reaction kettle through the adjusting structure, the feeding port is formed in the upper surface of the kettle cover, the arc surface of the reaction kettle is provided with the adjusting structure, the adjusting structure comprises a fixing frame, and the fixing frame is fixedly connected with the reaction kettle; the inner wall of the fixing frame is slidably connected with a sliding column, the upper surface of the sliding column is fixedly connected with a fixing block, the fixing block is fixedly connected with the kettle cover, one side of the sliding column is provided with a plurality of tooth grooves, and the arc surface of the reaction kettle is fixedly connected with a positioning plate. The production equipment for synthesizing the lithium iron phosphate by the hydrothermal method has the advantages that the kettle cover can be automatically opened, and the dangers of high temperature, high pressure and the like caused by manually opening the kettle cover by personnel are avoided, so that the operation safety is effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of lithium battery raw material production equipment, and in particular to a production equipment for hydrothermal synthesis of lithium iron phosphate. Background Technology

[0002] The production equipment for lithium battery raw materials includes a reaction vessel. In the manufacturing process of lithium batteries, the reaction vessel is used to synthesize key materials required for batteries, such as positive electrode materials such as lithium iron phosphate, lithium cobalt oxide, and lithium nickel cobalt manganese oxide. The reaction vessel is equipped with heating, stirring, and pressure control systems to ensure the uniformity and efficiency of the reaction, thereby obtaining high-quality battery materials.

[0003] Existing technologies, such as the utility model patent with publication number CN219836479U, disclose a reaction vessel. This patent includes a body, with a rotating shaft rotatably connected to the inner wall of the bottom of the body. One end of the rotating shaft is fixedly connected to a motor, and one output shaft of the motor is fixedly connected to the end of the rotating shaft. Connecting rods are evenly spaced on the outer wall of the rotating shaft. A detection mechanism is provided on the inner wall of the body, with a screw hole and a detection port corresponding to the detection mechanism. A grooved tube is provided on the outer wall of the body corresponding to the detection port. The detection mechanism includes a rotating wheel. This reaction vessel, through the design of the detection mechanism, screw hole, and detection port, allows for the removal and testing of the mixed materials inside the reaction vessel during operation. This enables operators to confirm the mixing state of the materials, ensuring the quality of the subsequently produced materials and thus improving the overall quality of the materials produced by this reaction vessel.

[0004] In daily use, it has been found that the reactor lid usually needs to be opened manually by the operator. However, manually opening the lid poses certain safety hazards, especially in high temperature and high pressure working environments, where operators are prone to burns, pressure leaks, and other risks.

[0005] Therefore, it is necessary to provide a new production equipment for the hydrothermal synthesis of lithium iron phosphate to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this invention is to address the problem that in the existing technology, the reactor lid usually needs to be manually opened by the operator during use. However, manually opening the lid poses certain safety hazards, especially in high-temperature and high-pressure working environments, where operators are prone to burns, pressure leaks, and other disadvantages. Therefore, this invention proposes a production equipment for the hydrothermal synthesis of lithium iron phosphate.

[0007] To solve the above-mentioned technical problems, this utility model provides a production equipment for hydrothermal synthesis of lithium iron phosphate, including: a reactor, a reactor cover, a feed inlet, an adjustment structure, and an auxiliary structure. The reactor cover is fixed to the upper surface of the reactor by means of the adjustment structure, and the feed inlet is installed on the upper surface of the reactor cover. The adjustment structure is provided on the arc surface of the reactor. The adjustment structure includes a fixed frame, which is fixedly connected to the reactor. A sliding column is slidably connected to the inner wall of the fixed frame. A fixed block is fixedly connected to the upper surface of the sliding column. The fixed block is fixedly connected to the reactor cover. Several toothed grooves are opened on one side of the sliding column. A positioning plate is fixedly connected to the arc surface of the reactor. A motor is fixedly connected to one side of the positioning plate. A gear is fixedly connected to the output end of the motor, and the gear meshes with the toothed grooves.

[0008] The effect achieved by the above components is that the adjustment structure can automatically open the lid, avoiding the dangers of high temperature and high pressure caused by manual opening of the lid, thereby effectively improving the safety of operation.

[0009] Preferably, a connecting plate is fixedly connected to the arc surface of the reactor, a connecting rod is slidably connected to the inner wall of the connecting plate, an auxiliary plate is fixedly connected to one end of the connecting rod, and the auxiliary plate is fixedly connected to the reactor lid.

[0010] The effect achieved by the above components is that the connecting plate, connecting rod and auxiliary plate can make the movement of the lid more stable, thus making the movement of the lid smoother.

[0011] Preferably, a limiting block is fixedly connected to the lower surface of the sliding column, and the limiting block has a rectangular cross-section.

[0012] The effect achieved by the above components is that the limiting block can limit the sliding column and prevent the sliding column from detaching.

[0013] Preferably, the motor is fitted with a protective cover, and the protective cover and the positioning plate are fixedly connected.

[0014] The effect achieved by the above components is that the protective cover can protect the motor and prevent dust and other debris from entering the motor.

[0015] Preferably, the lower surface of the reactor is provided with an auxiliary structure, the auxiliary structure including a connecting plate, the connecting plate being fixedly connected to the reactor, a plurality of universal wheels being rotatably connected to the lower surface of the connecting plate, two auxiliary frames being fixedly connected to both sides of the connecting plate, a limit plate being slidably connected to the inner wall of the auxiliary frame, a plurality of fixing grooves being opened on one side of the limit plate, a connecting seat being fixedly connected to one side of the auxiliary frame, an insert plate being slidably connected to the inner wall of the connecting seat, the insert plate being slidably connected to the auxiliary frame, the size of the insert plate being adapted to the fixing groove, a pull plate being fixedly connected to one side of the insert plate, two springs being fixedly connected to one side of the pull plate, and the other ends of the two springs being fixedly connected to the connecting seat.

[0016] The effect achieved by the above components is that the auxiliary structure can be set up to facilitate the movement of the reactor, avoiding the inconvenience of personnel moving the reactor directly, thereby saving physical strength and time.

[0017] Preferably, the pull plate has anti-slip textures on both sides, and the anti-slip textures are evenly distributed on both sides of the pull plate.

[0018] The effect achieved by the above components is that the anti-slip texture can increase the friction of the pull plate, preventing people's hands from slipping when moving the pull plate.

[0019] Preferably, a soft pad, which is a rubber pad, is fixedly connected to the lower surface of the limiting plate.

[0020] The effect achieved by the above components is that the soft pad can increase the friction of the limiting plate, making the limiting plate more stable in contact with the ground.

[0021] Compared with related technologies, the production equipment for hydrothermal synthesis of lithium iron phosphate provided by this utility model has the following beneficial effects:

[0022] This invention provides a production equipment for the hydrothermal synthesis of lithium iron phosphate. By setting an adjustment structure, the reactor lid can be opened automatically, thereby avoiding safety risks such as burns or pressure leaks caused by operators manually opening the reactor lid under high temperature and high pressure environments. This not only improves the safety of the operation process, but also effectively reduces the possibility of human error.

[0023] By setting up auxiliary structures, the reactor can be moved, avoiding the tediousness and inconvenience caused by operators directly moving the reactor. This effectively reduces labor intensity, saves physical strength and time, improves work efficiency and the smoothness of the production process, and enhances the flexibility and operability of the equipment. Attached Figure Description

[0024] Figure 1 A schematic diagram of the structure of a production equipment for the hydrothermal synthesis of lithium iron phosphate provided by this utility model;

[0025] Figure 2 for Figure 1 The diagram shows the structural schematic of the adjustment structure.

[0026] Figure 3 for Figure 2 A partial structural schematic diagram of the adjustment structure shown;

[0027] Figure 4 for Figure 1 The diagram shows the structure of the auxiliary structure.

[0028] Figure 5 for Figure 4 The enlarged schematic diagram at point A is shown.

[0029] The diagram is labeled as follows: 1. Reactor; 2. Reactor lid; 3. Feed inlet; 4. Adjustment structure; 401. Fixing frame; 402. Sliding column; 403. Fixing block; 404. Gear groove; 405. Positioning plate; 406. Motor; 407. Gear; 408. Protective cover; 409. Limiting block; 410. Connecting plate; 411. Connecting rod; 412. Auxiliary plate; 5. Auxiliary structure; 501. Connecting plate; 502. Casters; 503. Auxiliary frame; 504. Limiting plate; 505. Fixing groove; 506. Connecting seat; 507. Insert plate; 508. Pull plate; 509. Spring; 510. Anti-slip texture; 511. Soft pad. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0031] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0032] Please see Figures 1 to 5 The present invention provides a production equipment for hydrothermal synthesis of lithium iron phosphate, comprising: a reactor 1, a reactor cover 2, a feed inlet 3, an adjustment structure 4, and an auxiliary structure 5. The reactor cover 2 is fixed to the upper surface of the reactor 1 by means of the adjustment structure 4. The feed inlet 3 is installed on the upper surface of the reactor cover 2. The adjustment structure 4 is provided on the arc surface of the reactor 1, and the auxiliary structure 5 is provided on the lower surface of the reactor 1.

[0033] In the embodiments of this utility model, please refer to Figure 2 and Figure 3The adjusting structure 4 includes a fixed frame 401, which is fixedly connected to the reactor 1. A sliding column 402 is slidably connected to the inner wall of the fixed frame 401. A fixed block 403 is fixedly connected to the upper surface of the sliding column 402, and the fixed block 403 is fixedly connected to the reactor lid 2. Several toothed grooves 404 are provided on one side of the sliding column 402. A positioning plate 405 is fixedly connected to the arc surface of the reactor 1. A motor 406 is fixedly connected to one side of the positioning plate 405. A gear 407 is fixedly connected to the output end of the motor 406. The gear 407 meshes with the toothed grooves 404. By setting the adjusting structure 4, the reactor lid 2 can be opened automatically, avoiding the dangers of high temperature and high pressure caused by manual opening of the reactor lid 2, thereby effectively improving the safety of operation. A connecting... A connecting rod 411 is slidably connected to the inner wall of a plate 410. An auxiliary plate 412 is fixedly connected to one end of the connecting rod 411. The auxiliary plate 412 is fixedly connected to the lid 2. The connecting plate 410, the connecting rod 411, and the auxiliary plate 412 can make the lid 2 move more stably, achieving the effect of making the lid 2 move more smoothly. A limit block 409 is fixedly connected to the lower surface of the sliding column 402. The limit block 409 has a rectangular cross section. The limit block 409 can limit the sliding column 402 to prevent the sliding column 402 from detaching. A protective cover 408 is sleeved on the outside of the motor 406. The protective cover 408 is fixedly connected to the positioning plate 405. The protective cover 408 can protect the motor 406 and prevent dust and other debris from entering the inside of the motor 406.

[0034] In the embodiments of this utility model, please refer to Figure 4 and Figure 5The auxiliary structure 5 includes a connecting plate 501, which is fixedly connected to the reactor 1. Several casters 502 are rotatably connected to the lower surface of the connecting plate 501. Two auxiliary frames 503 are fixedly connected to both sides of the connecting plate 501. A limiting plate 504 is slidably connected to the inner wall of the auxiliary frame 503. Several fixing grooves 505 are provided on one side of the limiting plate 504. A connecting seat 506 is fixedly connected to one side of the auxiliary frame 503. An insert plate 507 is slidably connected to the inner wall of the connecting seat 506. The insert plate 507 is slidably connected to the auxiliary frame 503, and its size matches the fixing grooves 505. A pull plate 508 is fixedly connected to one side of the insert plate 507. A pull plate 508 is fixedly connected to one side of the pull plate 508. There are two springs 509, and the other end of the two springs 509 is fixedly connected to the connecting seat 506. By setting the auxiliary structure 5, the reactor 1 can be moved easily, avoiding the inconvenience of personnel moving the reactor 1 directly, thus saving physical strength and time. The pull plate 508 has anti-slip textures 510 on both sides. The anti-slip textures 510 are evenly distributed on both sides of the pull plate 508. The anti-slip textures 510 can increase the friction of the pull plate 508 and prevent personnel from slipping when moving the pull plate 508. The lower surface of the limiting plate 504 is fixedly connected to a soft pad 511. The soft pad 511 is a rubber pad. The soft pad 511 can increase the friction of the limiting plate 504 and make the limiting plate 504 more stable in contact with the ground.

[0035] The working principle of the hydrothermal synthesis equipment for lithium iron phosphate provided by this utility model is as follows: By setting the adjustment structure 4, the raw materials are first added through the feed port 3 of the lid 2, so that the raw materials enter the interior of the reactor 1. After the raw materials are mixed and reacted, the motor 406 on one side of the positioning plate 405 is started, so that the motor 406 drives the gear 407 to rotate on the tooth groove 404 of the slide column 402. When the gear 407 rotates, it will drive the slide column 402 to move on the fixed frame 401. When the slide column 402 moves, it will drive the fixed block 403 to move. At the same time, the fixed block 403 drives the lid 2 to move until the lid 2 is opened. The connecting plate 410, the connecting rod 411 and the auxiliary plate 412 can make the movement of the lid 2 more stable, so as to achieve the effect of making the movement of the lid 2 smoother. The limiting block 409 can limit the slide column 402 to prevent the slide column 402 from detaching. The protective cover 408 can protect the motor 406 to prevent dust and other debris from entering the motor 406.

[0036] By setting the auxiliary structure 5, the reactor 1 is moved first. When the reactor 1 moves, the caster 502 under the connecting plate 501 will move. Then, the anti-slip texture 510 pulls the pull plate 508. When the pull plate 508 moves, it will drive the spring 509 to stretch. At the same time, the insert plate 507 will move inside the connecting seat 506 and the auxiliary frame 503, so that the insert plate 507 disengages from the fixing groove 505 of the limiting plate 504. At the same time, the limiting plate 504 will contact the ground for support. After releasing the pull plate 508... When the pull plate 508 is released, the spring 509 will drive it to move. At the same time, the pull plate 508 will drive the insert plate 507 to move, so that the insert plate 507 is inserted into the fixing groove 505 of the limiting plate 504. At this time, the fixing of the limiting plate 504 is completed. The anti-slip texture 510 can increase the friction of the pull plate 508 and prevent the personnel from slipping when moving the pull plate 508. The soft pad 511 can increase the friction of the limiting plate 504, making the limiting plate 504 more stable in contact with the ground.

[0037] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A production equipment for hydrothermal synthesis of lithium iron phosphate, characterized in that, include: The reactor (1), reactor lid (2), feed inlet (3), adjustment structure (4), and auxiliary structure (5) are provided. The reactor lid (2) is fixed to the upper surface of the reactor (1) by means of the adjustment structure (4). The feed inlet (3) is installed on the upper surface of the reactor lid (2). The adjustment structure (4) is provided on the arc surface of the reactor (1). The adjustment structure (4) includes a fixing frame (401). The fixing frame (401) is fixedly connected to the reactor (1). The inner wall of the fixing frame (401) is slidably connected to a sliding column (402). A fixing block (403) is fixedly connected to the upper surface of the sliding column (402), and the fixing block (403) is fixedly connected to the lid (2). Several toothed grooves (404) are opened on one side of the sliding column (402). A positioning plate (405) is fixedly connected to the arc surface of the reactor (1). A motor (406) is fixedly connected to one side of the positioning plate (405). A gear (407) is fixedly connected to the output end of the motor (406), and the gear (407) meshes with the toothed grooves (404).

2. The production apparatus for synthesizing lithium iron phosphate by a hydrothermal method according to claim 1, wherein A connecting plate (410) is fixedly connected to the arc surface of the reactor (1). A connecting rod (411) is slidably connected to the inner wall of the connecting plate (410). An auxiliary plate (412) is fixedly connected to one end of the connecting rod (411). The auxiliary plate (412) is fixedly connected to the reactor lid (2).

3. The production apparatus for synthesizing lithium iron phosphate by a hydrothermal method according to claim 1, wherein A limiting block (409) is fixedly connected to the lower surface of the sliding column (402), and the cross-section of the limiting block (409) is rectangular.

4. The production apparatus for synthesizing lithium iron phosphate by a hydrothermal method according to claim 1, wherein The motor (406) is covered with a protective cover (408), and the protective cover (408) and the positioning plate (405) are fixedly connected.

5. The production apparatus for synthesizing lithium iron phosphate by a hydrothermal method according to claim 1, wherein The lower surface of the reactor (1) is provided with an auxiliary structure (5), which includes a connecting plate (501). The connecting plate (501) is fixedly connected to the reactor (1). Several casters (502) are rotatably connected to the lower surface of the connecting plate (501). Two auxiliary frames (503) are fixedly connected to both sides of the connecting plate (501). A limiting plate (504) is slidably connected to the inner wall of the auxiliary frame (503). Several fixing grooves (505) are opened on one side of the limiting plate (504). A connecting seat (506) is fixedly connected to one side of the auxiliary frame (503). A insert plate (507) is slidably connected to the inner wall of the connecting seat (506). The insert plate (507) is slidably connected to the auxiliary frame (503). The size of the insert plate (507) is adapted to the size of the fixing groove (505). A pull plate (508) is fixedly connected to one side of the insert plate (507). Two springs (509) are fixedly connected to one side of the pull plate (508). The other ends of the two springs (509) are fixedly connected to the connecting seat (506). 6.The hydrothermal synthesis lithium iron phosphate production equipment according to claim 5, characterized in that, The pull plate (508) has anti-slip textures (510) on both sides, and the anti-slip textures (510) are evenly distributed on both sides of the pull plate (508).

7. The production apparatus for synthesizing lithium iron phosphate by a hydrothermal method according to claim 5, wherein A soft pad (511) is fixedly connected to the lower surface of the limiting plate (504), and the soft pad (511) is a rubber pad.

Citation Information

Patent Citations

  • Reaction kettle

    CN219836479U