High-temperature purification modification furnace for preparing lithium ion battery negative electrode material

Abstract

The utility model discloses a kind of high-temperature purification modification furnaces for preparing lithium ion battery negative electrode material;The utility model relates to lithium ion battery negative electrode material preparation equipment technical field.It includes lower shell, upper shell, multiple heating components, adjusting installation component and controller;Upper and lower shell both ends transverse plate are connected with adjusting component, lower shell transverse plate is equipped with hydraulic adjusting rod, and rod top mounting plate is connected with upper shell transverse plate by bolt;Upper and lower shell are equipped with sleeve in heating port, high-temperature heating pipe is equipped in sleeve inner chamber, and chamber top sealing plate is closed;Controller controls hydraulic rod and heating tube.Solve the problem that traditional equipment is not heated evenly, spacing is difficult to adjust, realize uniform heating and flexible adjustment, and guarantee material purification modification quality.

Description

Technical Field

[0001] This utility model relates to the technical field of lithium-ion battery anode material preparation equipment, specifically a high-temperature purification and modification furnace for preparing lithium-ion battery anode materials. Background Technology

[0002] High-temperature purification and modification of lithium-ion battery anode materials is a key process for improving battery capacity and cycle performance. It requires removing impurities and optimizing the crystal structure of the anode material under high-temperature conditions. Therefore, extremely high requirements are placed on the temperature uniformity, ease of opening and closing of the furnace shell, and equipment controllability. This equipment is widely used in the field of new energy material production. Its core requirement is to achieve uniform heating inside the furnace to ensure effective material purification and modification. It also needs flexible shell spacing adjustment to adapt to different batch sizes of material processing, and precise control to ensure process stability.

[0003] A search revealed that Chinese patent CN219117845U discloses a "high-temperature treatment furnace for lithium-ion battery anode materials". This device achieves high-temperature treatment of materials through a single heating chamber. Although it can meet basic heating requirements, the uneven distribution of heating components can easily lead to large temperature differences within the furnace, resulting in inconsistent material purification and modification effects. Furthermore, the furnace body has a fixed structure, making it impossible to adjust the shell spacing according to the batch size of materials, resulting in poor adaptability. At the same time, the control module can only achieve single-parameter temperature regulation and lacks linkage control of heating components and adjustment structures, leading to insufficient process stability.

[0004] Currently available high-temperature purification and modification furnaces for preparing lithium-ion battery anode materials still have the following drawbacks:

[0005] 1. Most of them adopt a single-sided or local heating structure, resulting in uneven temperature distribution inside the furnace. The negative electrode material is prone to local overheating or incomplete purification, which leads to fluctuations in material performance and affects the quality of subsequent battery products. In addition, the heating components are mostly fixed installations, and the furnace body needs to be disassembled for maintenance, which is cumbersome and affects the efficiency of equipment operation and maintenance.

[0006] 2. The distance between the upper and lower shells of the furnace is fixed and cannot be flexibly adjusted according to the batch size of materials. When processing a small amount of materials, it is easy to waste energy, and when processing a large amount of materials, it is easy to overload and cause uneven heating. At the same time, the opening, closing and fixing of the shells depends on manual operation, which is not only labor-intensive, but also makes it difficult to ensure the sealing of the shells after they are closed, resulting in heat loss and further affecting temperature stability. Utility Model Content

[0007] The purpose of this invention is to provide a high-temperature purification and modification furnace for preparing lithium-ion battery anode materials, so as to solve the problems mentioned in the background art.

[0008] To solve the above technical problems, this utility model provides the following technical solution: a high-temperature purification and modification furnace for preparing lithium-ion battery anode materials, comprising a lower shell, an upper shell disposed on the top of the lower shell, multiple heating components disposed inside the upper shell and the lower shell, and an adjustment and installation component disposed between the upper shell and the lower shell, and further comprising controllers respectively installed on the surfaces of the upper shell and the lower shell;

[0009] The upper housing and the lower housing are evenly and fixedly connected to each other at both ends; the adjustment and mounting assembly includes multiple mounting seats detachably connected to the surfaces of the horizontal plates on both sides of the lower housing, a hydraulic adjustment rod detachably connected to the surface of the mounting seat, and a mounting plate detachably connected to the top of the hydraulic adjustment rod. The mounting plate has a connecting hole on its surface, and a bolt is fitted inside the connecting hole. The mounting plate is fixed to the bottom of the horizontal plates on both sides of the upper housing by the bolt.

[0010] The multiple heating assembly includes heating ports formed inside the lower and upper housings, a sleeve connected to the heating ports, and an inner cavity formed inside the sleeve wall. Multiple high-temperature heating tubes are installed inside the inner cavity, and a sealing plate is connected to the top of the inner cavity.

[0011] As a further embodiment of this utility model: the horizontal plates are symmetrically distributed at both ends of the upper and lower housings, and the horizontal plates are integrally formed with the upper and lower housings, and are used to connect the adjustment and installation components.

[0012] As a further embodiment of this utility model: multiple mounting seats are evenly distributed along the length direction of the horizontal plates on both sides of the lower housing; the bottom of the hydraulic adjusting rod is detachably connected to the mounting seat by bolts; and the top of the hydraulic adjusting rod is detachably connected to the mounting plate by bolts.

[0013] As a further improvement of this utility model: the connecting holes correspond one-to-one with the bolts, the bolts pass through the connecting holes and are threaded to the bottom of the horizontal plates on both sides of the upper housing, thereby fixing the mounting plate to the horizontal plates of the upper housing.

[0014] As a further embodiment of this utility model: the heating ports are respectively opened on the top inner wall of the lower housing and the bottom inner wall of the upper housing, the shape and size of the sleeve are adapted to the shape and size of the heating ports, and the sleeve is tightly fitted to the heating ports.

[0015] As a further embodiment of this utility model: a plurality of the high-temperature heating tubes are evenly distributed along the circumferential or length direction of the inner cavity, the high-temperature heating tubes are electrically connected to the controller, and the sealing plate is detachably connected to the top of the sleeve by bolts.

[0016] As a further solution of the present utility model: the controller is built-in with a temperature control module and a hydraulic control module, which can preset the heating temperature of the high-temperature heating pipe and the telescopic stroke of the hydraulic adjusting rod, so as to realize the linkage control of heating and adjustment.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] In the present utility model, a multi-layer heating assembly composed of a heating port, a sleeve, an inner cavity, high-temperature heating pipes and a sealing plate is arranged inside the upper shell and the lower shell. A plurality of high-temperature heating pipes are evenly distributed in the inner cavity of the sleeve, which can perform all-round and uniform heating on the inside of the furnace body, effectively avoid the temperature difference caused by traditional single-side heating, ensure that all parts of the lithium ion battery negative electrode material are heated uniformly, and improve the purification and modification effect and the stability of material performance; at the same time, the sleeve is connected with the heating port in a matching way, and the sealing plate is detachable. When performing maintenance, there is no need to disassemble the furnace body, and the high-temperature heating pipes can be inspected or replaced only by removing the sealing plate, which is convenient to operate, greatly improves the operation and maintenance efficiency of the equipment, and solves the problems of uneven heating and cumbersome maintenance of traditional equipment.

[0019] In the present utility model, an adjusting and mounting assembly comprising a mounting base, a hydraulic adjusting rod, a mounting plate and bolts is arranged between the upper shell and the lower shell. The controller can control the extension and retraction of the hydraulic adjusting rod to drive the upper shell to move in the vertical direction, so as to flexibly adjust the distance between the upper shell and the lower shell — reduce the distance when processing a small amount of materials to reduce energy waste, and expand the distance when processing a large amount of materials to meet the loading requirements, so as to adapt to material processing scenarios of different batches; in addition, the mounting plate is fixed to the transverse plate of the upper shell through bolts, which ensures the sealing performance after the shells are closed and reduces heat loss; the whole adjustment process does not require manual operation, which reduces the labor intensity, and the linkage control of the controller ensures that the distance adjustment and temperature control are carried out in coordination, further ensuring the process stability, and solving the problems of fixed distance and cumbersome operation of traditional equipment. Brief Description of the Drawings

[0020] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present utility model;

[0021] Figure 2 is a schematic diagram of the sleeve structure of the embodiment of the present utility model;

[0022] Figure 3 is a schematic diagram of the heating port structure of the embodiment of the present utility model;

[0023] Figure 4 is a schematic diagram of the hydraulic adjusting rod structure of the embodiment of the present utility model.

[0024] In the diagram: 1. Lower housing; 2. Upper housing; 3. Horizontal plate; 4. Controller; 5. Multiple heating components; 501. Sleeve; 502. Inner cavity; 503. High-temperature heating tube; 504. Sealing plate; 505. Heating port; 6. Adjustment and mounting components; 601. Hydraulic adjusting rod; 602. Mounting base; 603. Mounting plate; 604. Connecting hole; 605. Bolt. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0026] Example 1

[0027] like Figures 1 to 4 As shown, this embodiment provides a high-temperature purification and modification furnace for preparing lithium-ion battery anode materials, including a lower shell 1, an upper shell 2 disposed on top of the lower shell 1, multiple heating components 5 disposed inside the upper shell 2 and the lower shell 1, and an adjustment and mounting assembly 6 disposed between the upper shell 2 and the lower shell 1. It also includes a controller 4 respectively mounted on the surfaces of the upper shell 2 and the lower shell 1. Horizontal plates 3 are evenly distributed and fixedly connected to both ends of the upper shell 2 and the lower shell 1. The adjustment and mounting assembly 6 includes multiple mounting seats 602 detachably connected to the surfaces of the horizontal plates 3 on both sides of the lower shell 1, and hydraulic adjustment rods 60 detachably connected to the surfaces of the mounting seats 602. 1. A mounting plate 603 is detachably connected to the top of the hydraulic adjusting rod 601. The mounting plate 603 has a connecting hole 604 on its surface. A bolt 605 is fitted inside the connecting hole 604. The mounting plate 603 is fixed to the bottom of the horizontal plates 3 on both sides of the upper housing 2 by the bolt 605. The multi-heating assembly 5 includes a heating port 505 opened inside the lower housing 1 and the upper housing 2, a sleeve 501 fitted inside the heating port 505, and an inner cavity 502 opened inside the sleeve 501. Multiple high-temperature heating tubes 503 are installed inside the inner cavity 502. A sealing plate 504 is fitted to the top of the inner cavity 502.

[0028] Example 2

[0029] In addition to all the technical features in Embodiment 1, this embodiment also includes: the connecting hole 604 corresponds one-to-one with the bolt 605, the bolt 605 passes through the connecting hole 604 and is threadedly connected to the bottom of the horizontal plates 3 on both sides of the upper housing 2, thereby fixing the mounting plate 603 to the horizontal plates 3 of the upper housing 2; the heating port 505 is respectively opened on the top inner wall of the lower housing 1 and the bottom inner wall of the upper housing 2; the shape and size of the sleeve 501 are adapted to the shape and size of the heating port 505; the sleeve 501 and the heating port 505 fit tightly together; and the horizontal plates 3 increase the connection points, allowing adjustment between the upper housing 2 and the lower housing 1.

[0030] Furthermore, the horizontal plates 3 are symmetrically distributed at both ends of the upper housing 2 and the lower housing 1. The horizontal plates 3 are integrally formed with the upper housing 2 and the lower housing 1 and are used to connect the adjustment and mounting assembly 6. Multiple mounting seats 602 are evenly distributed along the length direction of the horizontal plates 3 on both sides of the lower housing 1. The bottom of the hydraulic adjustment rod 601 is detachably connected to the mounting seat 602 by bolts 605, and the top of the hydraulic adjustment rod 601 is detachably connected to the mounting plate 603 by bolts 605. The bolts 605 facilitate the connection of the mounting plate 603 and facilitate disassembly and use.

[0031] Furthermore, multiple high-temperature heating tubes 503 are evenly distributed along the circumference or length of the inner cavity 502. The high-temperature heating tubes 503 are electrically connected to the controller 4. The sealing plate 504 is detachably connected to the top of the sleeve 501 by bolts 605. The controller 4 has a built-in temperature control module and a hydraulic control module, which can preset the heating temperature of the high-temperature heating tubes 503 and the extension stroke of the hydraulic adjustment rod 601 to realize the linkage control of heating and adjustment. The controller 4 controls the electrical appliances, increasing the overall usability.

[0032] Working principle: A multi-stage heating assembly 5, consisting of a heating port 505, a sleeve 501, an inner cavity 502, high-temperature heating tubes 503, and a sealing plate 504, is installed inside the upper shell 2 and lower shell 1. Multiple high-temperature heating tubes 503 are evenly distributed within the inner cavity 502 of the sleeve 501, enabling comprehensive and uniform heating of the furnace interior. This effectively avoids temperature differences caused by traditional single-sided heating, ensuring consistent heating of all parts of the lithium-ion battery negative electrode material, improving purification and modification effects and material performance stability. Simultaneously, the sleeve 501 and... The heating port 505 is connected in conjunction with the removable sealing plate 504. During maintenance, the furnace body does not need to be disassembled; only the sealing plate 504 needs to be removed to inspect or replace the high-temperature heating tube 503. This convenient operation significantly improves equipment maintenance efficiency. An adjustment and installation assembly 6, including a mounting base 602, a hydraulic adjusting rod 601, a mounting plate 603, and bolts 605, is set between the upper shell 2 and the lower shell 1. The controller 4 can control the extension and retraction of the hydraulic adjusting rod 601, which moves the upper shell 2 vertically, flexibly adjusting the distance between the upper and lower shells 1. When processing a small amount of material, the distance can be reduced to reduce energy waste, while the distance can be increased to meet loading requirements when processing a large amount of material, adapting to different batch material processing scenarios. Furthermore, the mounting plate 603 is fixed to the horizontal plate 3 of the upper shell 2 by bolts 605, ensuring the airtightness of the shell after closure and reducing heat loss. The entire adjustment process requires no manual operation, reducing labor intensity. At the same time, the linkage control of the controller 4 ensures that the distance adjustment and temperature control are carried out in tandem, further ensuring process stability.

Claims

1. A high-temperature purification and modification furnace for preparing lithium-ion battery anode materials, characterized in that: It includes a lower housing (1), an upper housing (2) disposed on the top of the lower housing (1), a multi-heating assembly (5) disposed inside the upper housing (2) and the lower housing (1), and an adjustment and mounting assembly (6) disposed between the upper housing (2) and the lower housing (1), and also includes a controller (4) respectively mounted on the surfaces of the upper housing (2) and the lower housing (1). The upper housing (2) and the lower housing (1) are evenly and fixedly connected with horizontal plates (3) at both ends; the adjustment and installation assembly (6) includes multiple mounting seats (602) detachably connected to the surface of the horizontal plates (3) on both sides of the lower housing (1), a hydraulic adjustment rod (601) detachably connected to the surface of the mounting seat (602), and a mounting plate (603) detachably connected to the top of the hydraulic adjustment rod (601). The mounting plate (603) has a connecting hole (604) on its surface. A bolt (605) is fitted inside the connecting hole (604). The mounting plate (603) is fixed to the bottom of the horizontal plates (3) on both sides of the upper housing (2) by the bolt (605). The multiple heating assembly (5) includes a heating port (505) opened inside the lower housing (1) and the upper housing (2), a sleeve (501) connected to the heating port (505), and an inner cavity (502) opened on the inner side of the sleeve (501). Multiple high-temperature heating tubes (503) are installed inside the inner cavity (502), and a sealing plate (504) is connected to the top of the inner cavity (502).

2. The high-temperature purification and modification furnace for preparing lithium-ion battery anode materials according to claim 1, characterized in that: The horizontal plate (3) is symmetrically distributed at both ends of the upper shell (2) and the lower shell (1). The horizontal plate (3) is integrally formed with the upper shell (2) and the lower shell (1) and is used to connect the adjustment and installation assembly (6).

3. The high-temperature purification and modification furnace for preparing lithium-ion battery anode materials according to claim 1, characterized in that: Multiple mounting bases (602) are evenly distributed along the length direction of the horizontal plates (3) on both sides of the lower housing (1). The bottom of the hydraulic adjustment rod (601) is detachably connected to the mounting base (602) by bolts (605), and the top of the hydraulic adjustment rod (601) is detachably connected to the mounting plate (603) by bolts (605).

4. The high-temperature purification and modification furnace for preparing lithium-ion battery anode materials according to claim 1, characterized in that: The connecting hole (604) corresponds to the bolt (605) one by one. The bolt (605) passes through the connecting hole (604) and is threaded to the bottom of the horizontal plates (3) on both sides of the upper housing (2), thereby fixing the mounting plate (603) to the horizontal plates (3) of the upper housing (2).

5. A high-temperature purification and modification furnace for preparing lithium-ion battery anode materials according to claim 1, characterized in that: The heating ports (505) are respectively opened on the top inner wall of the lower housing (1) and the bottom inner wall of the upper housing (2). The shape and size of the sleeve (501) are adapted to the shape and size of the heating ports (505), and the sleeve (501) is tightly fitted to the heating ports (505).

6. The high-temperature purification and modification furnace for preparing lithium-ion battery anode materials according to claim 1, characterized in that: Multiple high-temperature heating tubes (503) are evenly distributed along the circumference or length of the inner cavity (502). The high-temperature heating tubes (503) are electrically connected to the controller (4). The sealing plate (504) is detachably connected to the top of the sleeve (501) by bolts (605).

7. A high-temperature purification and modification furnace for preparing lithium-ion battery anode materials according to claim 1, characterized in that: The controller (4) has a built-in temperature control module and a hydraulic control module, which can preset the heating temperature of the high-temperature heating tube (503) and the extension stroke of the hydraulic adjusting rod (601) to realize the linkage control of heating and adjustment.

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