Sagger for improving sintering temperature of intermediate lithium iron phosphate battery material
By setting support columns and scraper structures inside the sagger, the problems of temperature gradient and thermal stress caused by dust forming a heat insulation layer are solved, achieving uniform temperature distribution and dust removal inside the sagger, and improving the processing quality of battery materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG SHAN MO NEW MATERIALS TECH CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-21
AI Technical Summary
In the prior art, the dust adhering to the inner wall of the cylinder forms a heat insulation layer, which causes the sagger to be subjected to a large temperature gradient and thermal stress during high-temperature sintering, increasing the risk of sagger cracking or deformation.
A support column and scraper structure are installed inside the sagger. The support column has heat dissipation holes on the outside. The scraper, through the cooperation of the push plate and the elastic element, achieves dust cleaning and vibration of the inner wall of the sagger, ensuring uniform temperature distribution.
Effectively cleans dust, reduces the risk of crucible breakage or deformation, and improves the processing quality and temperature uniformity of battery materials.
Smart Images
Figure CN224151433U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sagger technology, and more specifically, to a sagger for improving the sintering temperature of intermediate lithium iron phosphate battery materials. Background Technology
[0002] When processing battery materials, raw materials such as lithium iron phosphate are usually placed inside a sagger. The main function of the sagger is to provide a suitable sintering environment to ensure that the materials are heated evenly at high temperatures and undergo physical and chemical reactions, thereby producing high-performance battery materials.
[0003] A search revealed a prior art invention for improving the sintering temperature of intermediate lithium iron phosphate battery materials, patent publication number CN219674819U. The specification states that by adding a cylinder to the center of the box, not only can the heat dissipation area of the box be increased, but the air circulation can also be enhanced through the through holes in the cylinder, thereby reducing the temperature of the material at the center of the box.
[0004] However, in actual use, the cylinder is in contact with the outside air for a long time. Once dust adheres to its inner wall, the dust will form a heat insulation layer during the high-temperature sintering process, which slows down the heat dissipation process, causing the temperature of the inner wall of the cylinder to rise. This will affect the temperature distribution inside the entire sagger and make the sagger have to withstand a large temperature gradient and thermal stress, thereby increasing the risk of the sagger breaking or deforming. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a sagger for improving the sintering temperature of intermediate lithium iron phosphate battery materials, so as to solve the problem that in the prior art, after the dust attached to the inner wall of the cylinder forms a heat insulation layer, the sagger needs to withstand a large temperature gradient and thermal stress during the high-temperature sintering process, thereby increasing the risk of sagger cracking or deformation.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a sagger for improving the sintering temperature of intermediate lithium iron phosphate battery materials, comprising a sagger body and a sagger cover, wherein the sagger body and the sagger cover are fitted together, a plurality of placement rings are fixedly connected to the inner wall of the sagger body, a support column is slidably connected inside the sagger body, a plurality of heat dissipation holes are opened on the outside of the support column, a connecting plate is fixedly connected to the upper and lower ends of the support column, a placement groove is opened inside the outer periphery of the connecting plate, a scraper is fixedly connected inside the placement groove, and the outer periphery of the scraper is fitted to the inner wall of the sagger body.
[0007] The connecting plate has multiple mounting slots inside, and multiple push plates are attached to the inner side of the scraper. A push rod is fixedly connected to the side of the push plate away from the scraper, and a mounting piece is fixedly connected to the other end of the push rod. An elastic element is fixedly connected to the end of the mounting piece away from the push rod.
[0008] The connecting plate has a limiting groove in its inner center, a filter screen is slidably connected inside the limiting groove, a limiting ring is fixedly connected to the outer periphery of the filter screen, and a snap-on groove is provided in the middle of the two opposite sides of the connecting plates.
[0009] The scraper slides against the outside of the placement ring, and the support column is connected to the outside via a connecting plate.
[0010] The push plate is slidably connected inside the placement groove, one side of the push rod is slidably connected inside the placement groove, and the other side of the push rod is slidably connected inside the mounting groove.
[0011] The mounting piece is slidably connected inside the mounting groove, and the end of the elastic element away from the mounting piece is fixedly connected to the inner wall of the mounting groove.
[0012] The limiting ring fits into the inside of the limiting groove, and two grooves are formed on the outside of the filter screen. The snap-on groove is connected to the groove on the filter screen.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] In the above solution, by installing support columns at the cylindrical part of the sagger, the sagger can be supported by the support columns. During the installation of the support columns, the dust can be cleaned by scrapers. Thus, without affecting the heat dissipation effect, the temperature distribution inside the sagger is more uniform, and the risk of sagger cracking or deformation is reduced, resulting in higher processing quality of battery materials. Attached Figure Description
[0015] Figure 1 This is a perspective view of the present utility model;
[0016] Figure 2 This is the right view of the present invention;
[0017] Figure 3 This is a cross-sectional view of the structure at point AA in section 2 of this utility model;
[0018] Figure 4 For the present utility model Figure 3 Enlarged view of the structure at point A in the middle;
[0019] Figure 5 This is a schematic diagram of the support column structure of this utility model;
[0020] Figure 6 For the present utility model Figure 5 Cross-sectional view of the structure at point BB.
[0021] [Figure Labels]
[0022] 1. Sagger body; 2. Sagger cover; 3. Placement ring; 4. Support column; 5. Heat dissipation hole; 6. Connecting plate; 7. Placement groove; 8. Scraper; 9. Mounting groove; 10. Push plate; 11. Push rod; 12. Mounting piece; 13. Elastic element; 14. Limiting groove; 15. Filter screen; 16. Limiting ring; 17. Clipping groove. Detailed Implementation
[0023] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.
[0024] Example 1: Please refer to Figures 1 to 6 This utility model provides a technical solution: a sagger for improving the sintering temperature of intermediate lithium iron phosphate battery materials, comprising a sagger body 1 and a sagger cover 2, the sagger body 1 and the sagger cover 2 being fitted together; multiple placement rings 3 being fixedly connected to the inner wall of the sagger body 1; a support column 4 being slidably connected inside the sagger body 1, the support column 4 being slidably connected to the cylindrical part of the sagger body 1 for supporting the sagger body 1; multiple heat dissipation holes 5 being opened on the outside of the support column 4; connecting plates 6 being fixedly connected to both the upper and lower ends of the support column 4; the support column 4 being connected to the outside through the connecting plates 6, the support column 4 and the heat dissipation holes 5 to allow external air to pass through the connecting plates 6, the support column 4 and the heat dissipation holes 5 to heat the sagger body 1. The inner wall is used for heat dissipation. A placement groove 7 is opened inside the outer periphery of the connecting plate 6. A scraper 8 is fixedly connected inside the placement groove 7. The placement groove 7 provides installation space for the scraper 8. The scraper 8 slides against the outside of the placement ring 3. The outer periphery of the scraper 8 is in contact with the inner wall of the sagger body 1, so that the scraper 8 can deform after contacting the placement ring 3. Then, when the scraper 8 separates from the placement ring 3, the scraper 8 can knock on the inner wall of the sagger body 1, so that the sagger body 1 can vibrate. This not only makes some dust fall off, resulting in a better cleaning effect on the inner wall of the sagger body 1, but also makes the raw material distribution inside the sagger body 1 more uniform, resulting in better processing quality.
[0025] When the raw materials inside the sagger body 1 need to be processed, the support column 4 is slid into the interior of the sagger body 1, allowing the connecting plate 6 to slide inside the sagger body 1, and the scraper 8 to come into contact with the placement ring 3, causing the scraper 8 to deform. After the scraper 8 separates from the placement ring 3, the scraper 8 can strike the inner wall of the sagger body 1, causing the sagger body 1 to vibrate. This not only causes some dust to fall off, resulting in a better cleaning effect on the inner wall of the sagger body 1, but also makes the raw materials inside the sagger body 1 more evenly distributed, resulting in better processing quality. At this time, during processing, external air can circulate inside the sagger body 1 through the connecting plate 6 and the heat dissipation hole 5, making the internal temperature of the sagger body 1 more uniform, thus improving the processing quality.
[0026] Example 2: Based on Example 1, to further improve the cleaning effect and vibration amplitude of the scraper 8, multiple mounting slots 9 are provided inside the connecting plate 6. Multiple push plates 10 are attached to the inner side of the scraper 8. The push plates 10 are used to push the scraper 8 to deform. The push plates 10 are slidably connected inside the placement slot 7, providing installation space for the placement slot 7. A push rod 11 is fixedly connected to the side of the push plate 10 away from the scraper 8. The push rod 11 is used to push the push plate 10 to move. One side of the push rod 11 is slidably connected inside the placement slot 7. The other side of the rod 11 is slidably connected to the inside of the mounting groove 9. The placement groove 7 and the mounting groove 9 limit the push rod 11, so that the push rod 11 will not deviate when sliding. The other end of the push rod 11 is fixedly connected to the mounting piece 12. The mounting piece 12 is slidably connected to the inside of the mounting groove 9. The mounting groove 9 limits the mounting piece 12, so that the mounting piece 12 can slide smoothly. The end of the mounting piece 12 away from the push rod 11 is fixedly connected to the elastic element 13. The end of the elastic element 13 away from the mounting piece 12 is fixedly connected to the inner wall of the mounting groove 9.
[0027] When the scraper 8 slides inside the sagger body 1, it pushes the push plate 10 to move inward, which in turn pushes the push rod 11 to move inward. This push rod 11 then pushes the mounting plate 12 to move inward, causing the mounting plate 12 to compress the elastic element 13 and deform. When the scraper 8 comes into contact with the placement ring 3, the push plate 10 continues to push the mounting plate 12 to compress the elastic element 13 and deform. After the scraper 8 separates from the placement ring 3, the elastic element 13 returns to its original position, allowing it to push the push plate 10 outward via the mounting plate 12 and the push rod 11. This causes the push plate 10 to push the scraper 8 to strike the inner wall of the sagger body 1, increasing the striking force of the scraper 8 and improving the vibration effect. This allows some dust inside the sagger body 1 to fall off and makes the raw materials inside the sagger body 1 more evenly dispersed.
[0028] Example 3: Based on Example 2, in order to reduce dust entering the interior of the sagger body 1, a limiting groove 14 is provided in the inner center of the connecting plate 6. A filter screen 15 is slidably connected inside the limiting groove 14, providing installation space for the filter screen 15. A limiting ring 16 is fixedly connected to the outer periphery of the filter screen 15, and the limiting ring 16 fits into the interior of the limiting groove 14, thereby limiting the limiting ring 16 by the limiting groove 14, and thus allowing the filter screen 15 to be stably installed inside the sagger body 1. A snap-on groove 17 is provided in the middle of the opposite side of the two connecting plates 6. Two grooves are provided on the outside of the filter screen 15. The snap-on groove 17 is connected to the groove on the filter screen 15, thereby facilitating the snap-on of the filter screen 15. This allows for convenient installation and removal of the filter screen 15. When the raw materials inside the sagger body 1 do not need to be processed, the support column 4, the connecting plate 6, and the filter screen 15 can be installed inside the sagger body 1 for a long time, thereby reducing the impact of external dust on the sagger body 1.
[0029] When it is necessary to filter the air entering the sagger body 1, the filter screen 15 is slid into the limiting groove 14 so that the limiting ring 16 fits into the limiting groove 14, thereby making it easy to install the filter screen 15, and thus the air entering the sagger body 1 is filtered, making the inner wall of the sagger body 1 cleaner.
[0030] The working process of this utility model is as follows:
[0031] When the raw materials inside the sagger body 1 need to be processed, the filter screen 15 is slid into the limiting groove 14, so that the limiting ring 16 fits into the limiting groove 14. This allows the filter screen 15 to be conveniently installed inside the connecting plate 6, thus filtering the air entering the sagger body 1. At this time, the support column 4 is slid into the sagger body 1, so that the connecting plate 6 and the scraper 8 can slide inside the sagger body 1. The scraper 8 pushes the mounting piece 12 inward through the push plate 10 and the push rod 11, causing the mounting piece 12 to compress the elastic element 13 and deform. When the scraper 8 contacts the placement ring 3, the push plate 10 continues to push the mounting piece 12 to compress the elastic element 13 and deform. When the scraper 8 separates from the placement ring 3... Afterwards, the elastic element 13 can perform a reset movement, allowing it to push the push plate 10 outwards via the mounting plate 12 and the push rod 11. This causes the push plate 10 to push the scraper 8 to strike the inner wall of the sagger body 1, increasing the striking force of the scraper 8 and causing the sagger body 1 to vibrate. As the support column 4 continues to move, the scraper 8 can strike the sagger body 1 multiple times, not only causing some dust to fall off and improving the cleaning effect on the inner wall of the sagger body 1, but also making the material distribution inside the sagger body 1 more uniform, resulting in better processing quality. At this time, during processing, external air can circulate inside the sagger body 1 through the connecting plate 6 and the heat dissipation hole 5, making the internal temperature of the sagger body 1 more uniform, thus further improving the processing quality.
[0032] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0033] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A sagger for improving the sintering temperature of intermediate lithium iron phosphate battery material, characterized in that, The utility model relates to a sagger, which comprises a sagger body (1) and a sagger cover (2), the sagger body (1) and the sagger cover (2) are attached, the inner wall of the sagger body (1) is fixedly connected with a plurality of placing rings (3), the inside of the sagger body (1) is slidably connected with a support column (4), a plurality of heat dissipation holes (5) are formed in the outer portion of the support column (4), the upper and lower ends of the support column (4) are fixedly connected with connecting plates (6), a placing groove (7) is formed in the inner periphery of the connecting plate (6), a scraping blade (8) is fixedly connected in the inside of the placing groove (7), and the outer periphery of the scraping blade (8) is attached to the inner wall of the sagger body (1).
2. The saggar for improving the sintering temperature of intermediate lithium iron phosphate battery material according to claim 1, wherein A plurality of mounting grooves (9) are formed in the inside of the connecting plate (6), a plurality of push plates (10) are attached to the inner side of the scraping blade (8), a push rod (11) is fixedly connected to the side of the push plate (10) away from the scraping blade (8), an installation piece (12) is fixedly connected to the other end of the push rod (11), and an elastic member (13) is fixedly connected to the end of the installation piece (12) away from the push rod (11).
3. The saggar for improving the sintering temperature of intermediate lithium iron phosphate battery material according to claim 2, wherein, A limiting groove (14) is formed in the inner middle portion of the connecting plate (6), a filter screen (15) is slidably connected in the inside of the limiting groove (14), and a limiting ring (16) is fixedly connected to the outer periphery of the filter screen (15); a buckling groove (17) is formed in the middle portion of the side of each connecting plate (6) away from the other connecting plate (6).
4. The saggar for improving sintering temperature of intermediate lithium iron phosphate battery material according to claim 1, wherein, The scraping blade (8) and the placing ring (3) are slidably connected to the outside of the sagger body (1), and the support column (4) is connected to the outside through the connecting plate (6).
5. The saggar for improving the sintering temperature of intermediate lithium iron phosphate battery material according to claim 2, wherein The push plate (10) is slidably connected in the inside of the placing groove (7), one side of the push rod (11) is slidably connected in the inside of the placing groove (7), and the other side of the push rod (11) is slidably connected in the inside of the mounting groove (9).
6. The saggar for improving sintering temperature of intermediate lithium iron phosphate battery material according to claim 2, wherein The installation piece (12) is slidably connected in the inside of the mounting groove (9), and the elastic member (13) is fixedly connected to the inner wall of the mounting groove (9) at the end away from the installation piece (12).
7. The saggar for improving the sintering temperature of intermediate lithium iron phosphate battery material according to claim 3, wherein The limiting ring (16) is attached to the inside of the limiting groove (14), two grooves are formed in the outside of the filter screen (15), and the buckling groove (17) is connected to the groove on the filter screen (15).