A special sagger for firing positive electrode materials
By improving the sagger structure, the problems of difficulty in removing materials after high-temperature roasting and the risk of burns were solved, achieving efficient processing and safe operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN CHUANGCHEN XINGNENG NEW MATERIAL TECHNOLOGY CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-07-03
AI Technical Summary
In the existing technology, it is difficult to remove the sintered material from the sagger after high-temperature baking, resulting in a low natural cooling rate, which affects the processing efficiency of the cathode material, and also poses a high risk of burns to workers.
A crucible structure was designed, comprising a protective top cover, a transmission disc, a limiting mechanism, and a protective handle. The transmission disc and the limiting rod work together to facilitate the removal of the protective top cover and the dumping of materials. Combined with ventilation windows and ventilation micro-holes, it achieves uniform heating and reduces the risk of high-temperature burns.
It improves the processing efficiency of cathode materials, reduces the risk of workers being burned by high temperatures, reduces raw material waste and cleaning difficulty, and achieves uniform heating.
Smart Images
Figure CN224455427U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a firing sagger, specifically a special sagger for firing positive electrode materials, belonging to the field of positive electrode material processing technology. Background Technology
[0002] The cathode material is a core component of lithium-ion batteries, primarily responsible for storing and releasing energy. Common lithium-ion battery cathode materials include nickel-cobalt-manganese, nickel-cobalt-aluminum, lithium iron phosphate, and lithium manganese oxide. During high-temperature furnace firing, a crucible is used to support the reactants.
[0003] According to patent CN216523113U, a special sagger for firing positive electrode materials is disclosed, including a box body and a lid that is fastened to the box body. Handles are provided on both sides of the box body, a raised edge is provided on the top of the box body, a pad is provided on the bottom of the box body, a through hole and a ventilation micro-hole are provided on the lid, and a retaining edge is provided on the edge of the lid.
[0004] The above-mentioned solution has the advantages of being easy to use and having a reasonable structural design. However, during the implementation of the above-mentioned solution, it is inconvenient to remove the sintered material from the sagger, resulting in a low natural cooling rate of the material and affecting the processing efficiency of the cathode material. To this end, we provide a special sagger for cathode material sintering to solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide a special sagger for firing positive electrode materials in order to solve the above-mentioned problems. This solves the problem in the prior art that the outer shell of the sagger is at a high temperature after being heated for a long time, and workers are easily burned by the high temperature when handling or opening the sagger.
[0006] This utility model is achieved through the following technical solution: a special sagger for firing positive electrode materials, comprising a sagger shell, a protective top cover movably connected to the top of the sagger shell, an internally threaded sleeve fixedly connected to the top surface of the protective top cover, an extension sleeve fixedly connected to the bottom surface of the protective top cover, a transmission disc movably connected inside the extension sleeve, a return spring fixedly connected to the bottom surface of the transmission disc, a protective handle provided on the outside of the protective top cover, and a set of limiting mechanisms provided inside the protective top cover, the limiting mechanism including a limiting rod sliding inside the protective top cover, and a transmission rod provided outside the limiting rod.
[0007] Preferably, the end of the limiting rod and the outer surface of the transmission disc are both fixedly connected to hinge blocks, and the two ends of the transmission rod are respectively hinged to the two hinge blocks through pins, so that the transmission rod can play a transmission role.
[0008] Preferably, the inner wall of the sagger shell is provided with a set of insertion holes, and the end of each limiting insertion rod is slidably connected to the insertion hole, and the limiting insertion rod plays the role of fixing the protective top cover.
[0009] Preferably, the end of the return spring away from the transmission disc is fixedly connected to the inner bottom wall of the extension sleeve, and the return spring can push the transmission disc to return to its original position.
[0010] Preferably, the bottom end of the protective handle is threadedly connected to the internal threaded sleeve, and an auxiliary grip is fixedly connected to the outer surface of the protective handle, so that the protective top cover can be easily removed from the crucible housing.
[0011] Preferably, a pressing block is fixedly connected to the bottom surface of the protective handle. The pressing block penetrates the protective top cover and is slidably connected to the protective top cover. The pressing block functions as a pressing drive disc.
[0012] Preferably, a connecting column is fixedly connected to the bottom surface of the extended sleeve, and a sintering disc is fixedly connected to the bottom end of the connecting column. The sintering disc slides inside the sagger shell and serves to support the processing materials.
[0013] Preferably, a set of ventilation windows is fixedly connected to the top surface of the protective top cover, and each ventilation window has ventilation micro-holes inside, which enables the sintering material to be heated evenly.
[0014] This utility model provides a special sagger for firing positive electrode materials, which has the following beneficial effects:
[0015] 1. This utility model, by setting up components such as a protective handle, an internal threaded sleeve, a transmission disc, and a limiting mechanism, utilizes the transmission cooperation between the transmission disc and the limiting rod to release the insertion effect of the limiting rod and the insertion hole when the protective handle is inserted into the internal threaded sleeve. This facilitates the removal of the protective top cover from the sagger shell and allows the sintered material to be poured into a suitable place for cooling, thereby improving the efficiency of processing the positive electrode material and effectively reducing the risk of workers being burned by high temperatures during the material handling process.
[0016] 2. This utility model, through the setting of the transmission disc and the return spring, can keep the limiting rod stably inserted into the insertion hole, thereby improving the connection stability between the protective top cover and the sagger shell; through the setting of the connecting column and the sintering plate, when the sintering plate is pulled out from the sagger shell, the sintering material attached to the inner wall of the sagger shell can be scraped off by the tilt angle, which can reduce the waste of raw materials and reduce the workload of workers in cleaning the inner wall of the sagger shell.
[0017] 3. By setting up ventilation windows and ventilation micro-holes, the air pressure inside the sagger shell is prevented from being pushed open from the inside of the sagger shell due to prolonged high-temperature calcination. The ventilation micro-holes are set at an angle, which allows air circulation to keep the inside and outside of the sagger shell at the same temperature, thereby ensuring that the placed positive electrode material is heated evenly and improving the processing effect of the positive electrode material. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a partial structural exploded view of the present invention;
[0020] Figure 3 This is a partial cross-sectional view of the present invention;
[0021] Figure 4 This is a schematic diagram of the limiting mechanism of this utility model;
[0022] Figure 5 This is a schematic diagram of the structure of the protective handle of this utility model.
[0023] [Explanation of Key Component Symbols]
[0024] 1. Sagger housing; 2. Protective top cover; 3. Internal threaded sleeve; 4. Extension sleeve; 5. Transmission disc; 6. Return spring;
[0025] 7. Limiting mechanism; 701. Limiting rod; 702. Transmission rod; 703. Hinge block;
[0026] 8. Protective handle; 9. Auxiliary grip; 10. Extrusion block; 11. Connecting column; 12. Sintering plate; 13. Ventilation window. Detailed Implementation
[0027] This utility model embodiment provides a special sagger for firing positive electrode materials.
[0028] Please see Figure 1 , Figure 2 and Figure 3 The sagger includes a sagger shell 1, with a protective top cover 2 movably connected to the top of the sagger shell 1. The sagger shell 1 and the protective top cover 2 are made of refractory materials such as high alumina, silicon aluminum, silicon carbide, and magnesium oxide, which have good high temperature resistance and can calcine the reactants such as lithium carbonate and metal oxides placed inside, providing reaction space and conditions for the processing and production of cathode materials. The sagger shell 1 and the protective top cover 2 have a good sealing effect, which can effectively prevent raw materials from splashing out of the sagger shell 1 during sintering.
[0029] A set of ventilation windows 13 are fixedly connected to the top surface of the protective top cover 2. Each ventilation window 13 has ventilation micro-holes inside. The ventilation windows 13 and the ventilation micro-holes inside can achieve the effect of ventilation, preventing the air pressure inside the sagger shell 1 from being pushed open from the inside of the sagger shell 1 due to long-term high-temperature calcination. The ventilation micro-holes are set at an angle, which can keep the inside and outside of the sagger shell 1 at the same temperature through air circulation, so that the placed positive electrode material is heated evenly.
[0030] Please see Figure 2 and Figure 3 An extension sleeve 4 is fixedly connected to the bottom surface of the protective top cover 2, and a connecting post 11 is fixedly connected to the bottom surface of the extension sleeve 4. The connecting post 11 serves as a connection. When the protective top cover 2 is opened, it can drive the sintering plate 12 to detach from the sagger shell 1, thereby reducing the difficulty of manually collecting the sintering material from the bottom of the sagger shell 1, making it easier to remove the sintered material and place it in another place for cooling, thus improving the processing efficiency of the cathode material.
[0031] A sintering disc 12 is fixedly connected to the bottom end of the connecting column 11. The sintering disc 12 slides inside the sagger shell 1. The periphery of the sintering disc 12 has a certain inclination angle. When the sintering disc 12 is pulled out from the sagger shell 1, the sintered material attached to the inner wall of the sagger shell 1 can be scraped off by the inclination angle. This can reduce the waste of raw materials and reduce the workload of the staff in cleaning the inner wall of the sagger shell 1.
[0032] Please see Figure 4 and Figure 5 The extension sleeve 4 is internally connected to a transmission disc 5. A return spring 6 is fixedly connected to the bottom surface of the transmission disc 5. The end of the return spring 6 away from the transmission disc 5 is fixedly connected to the inner bottom wall of the extension sleeve 4. When the transmission disc 5 is squeezed by the pressing block 10, it can compress the return spring 6 and descend inside the extension sleeve 4, thereby providing power for the operation of the limiting mechanism 7. When the transmission disc 5 is not under external pressure, the return spring 6 will give the transmission disc 5 a momentary elastic force, so that the transmission disc 5 maintains a relatively stable state, thereby enabling the limiting rod 701 to be stably inserted into the insertion hole, and the protective top cover 2 to stably cover the top of the casket shell 1. The return spring 6 is supported by a high temperature resistant material, and its elastic coefficient is sufficient to enable the limiting rod 701 to be stably inserted into the insertion hole. The small amplitude vibration caused by the characteristics of the return spring 6 is within the acceptable range of this application and will not affect the insertion stability of the limiting rod 701 and the insertion hole.
[0033] Please see Figure 1 , Figure 2 , Figure 3 and Figure 5The top surface of the protective top cover 2 is fixedly connected to the internal threaded sleeve 3. The protective top cover 2 is provided with a protective handle 8. The bottom end of the protective handle 8 is threadedly connected to the internal threaded sleeve 3. When the protective handle 8 is rotated and installed inside the internal threaded sleeve 3, the extrusion block 10 will extrude the transmission disc 5, thereby canceling the limiting effect of the limiting mechanism 7. At this time, the workers can remove the protective top cover 2 from the saggar shell 1 through the protective handle 8 and pour out the sintering material in the sintering tray 12 through the protective handle 8, which effectively reduces the risk of high temperature to the workers.
[0034] An auxiliary gripping rod 9 is fixedly connected to the outer surface of the protective handle 8, and a pressing block 10 is fixedly connected to the bottom surface of the protective handle 8. The pressing block 10 penetrates the protective top cover 2 and is slidably connected to the protective top cover 2. A handle is installed on the top of the protective handle 8. Both the handle and the auxiliary gripping rod 9 are made of heat-insulating material, which can reduce the risk of burns caused by the high temperature on the surface of the protective top cover 2 when the staff uses the protective handle 8, and improve the safety performance of the device. When the protective handle 8 is installed inside the internal threaded sleeve 3, the pressing block 10 can just press the transmission disc 5 to a certain position, so that the limiting rod 701 is disengaged from the insertion hole.
[0035] The protective top cover 2 is equipped with a set of limiting mechanisms 7. The limiting mechanism 7 includes a limiting rod 701 that slides inside the protective top cover 2. The inner wall of the sagger housing 1 is provided with a set of insertion holes. The end of each limiting rod 701 is slidably connected to the insertion hole. Two handles are installed on the top surface of the protective top cover 2. The operator can use the handles to smoothly place the protective top cover 2 into the inside of the sagger housing 1. When the protective top cover 2 and the sagger housing 1 are close to a certain position, the limiting rod 701 will be squeezed by the sagger housing 1, thereby retracting into the inside of the protective top cover 2. After the protective top cover 2 is placed, the transmission disc 5 will be reset under the action of the return spring 6, thereby pushing the limiting rod 701 to slide into the insertion hole opened on the inner wall of the sagger housing 1. At this time, the limiting rod 701 can be stably placed inside the insertion hole, thereby keeping the protective top cover 2 and the sagger housing 1 in a relatively stable state.
[0036] A transmission rod 702 is provided on the outside of the limiting rod 701. The end of the limiting rod 701 and the outer surface of the transmission disc 5 are both fixedly connected to the hinge block 703. The two ends of the transmission rod 702 are respectively hinged to the two hinge blocks 703 through pins. The transmission rod 702 and the hinge block 703 play a transmission role, which allows the limiting rod 701 to slide inside the protective top cover 2 as the transmission disc 5 rises and falls. The protective top cover 2 has a channel inside that matches the movement trajectory of the transmission rod 702 to ensure that the transmission rod 702 can perform normal transmission operation.
[0037] Working principle: When the operator uses this sagger to fire the positive electrode material, the positive electrode material is first evenly placed on the sintering plate 12. Then, the protective top cover 2 is smoothly placed into the inside of the sagger shell 1 using the handle on the top surface of the protective top cover 2. During the placement process, the limiting rod 701 will be compressed by the sagger shell 1 and retract into the inside of the protective top cover 2. After placement, it will automatically insert into the insertion hole, thereby fixing the protective top cover 2. After firing is completed, the operator inserts the protective handle 8 into the internal threaded sleeve 3 and rotates the protective handle 8 to stabilize it inside. Inside the threaded sleeve 3, during insertion, the protective handle 8 can squeeze the transmission disc 5 through the squeezing block 10. The transmission disc 5 is compressed by the force to return the spring 6, and through the transmission rod 702, it drives the limiting insertion rod 701 to retract into the protective top cover 2, thereby canceling the insertion effect with the insertion hole. At this time, the operator can easily remove the protective top cover 2 from the saggar shell 1 through the protective handle 8 and the auxiliary grip rod 9, and pour the sintering material on the sintering plate 12 into a suitable place for cooling, effectively reducing the risk of the operator being burned by high temperature when picking up or opening the saggar.
[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A special saggar for firing a positive electrode material, comprising a saggar shell (1), characterized in that: A protective top cover (2) is movably connected to the top of the sagger shell (1). An internal threaded sleeve (3) is fixedly connected to the top surface of the protective top cover (2). An extension sleeve (4) is fixedly connected to the bottom surface of the protective top cover (2). A transmission disc (5) is movably connected inside the extension sleeve (4). A return spring (6) is fixedly connected to the bottom surface of the transmission disc (5). A protective handle (8) is provided on the outside of the protective top cover (2). A set of limiting mechanisms (7) is provided inside the protective top cover (2). The limiting mechanism (7) includes a limiting rod (701) that slides inside the protective top cover (2), and a transmission rod (702) is provided on the outside of the limiting rod (701).
2. The special sagger for firing positive electrode materials according to claim 1, characterized in that: The end of the limiting rod (701) and the outer surface of the transmission disc (5) are both fixedly connected to hinge blocks (703), and the two ends of the transmission rod (702) are respectively hinged to the two hinge blocks (703) through pins.
3. The special saggar for firing a cathode material according to claim 1, characterized in that: The inner wall of the sagger housing (1) is provided with a set of insertion holes, and the end of each limiting insertion rod (701) is slidably connected to the insertion hole.
4. The kiln special saggar for positive material of claim 1, wherein: The end of the return spring (6) away from the transmission disc (5) is fixedly connected to the inner bottom wall of the extension sleeve (4).
5. The special saggar for firing a cathode material according to claim 1, wherein: The bottom end of the protective handle (8) is threadedly connected to the internal threaded sleeve (3), and an auxiliary grip (9) is fixedly connected to the outer surface of the protective handle (8).
6. The special saggar for firing a cathode material according to claim 1, wherein: The bottom surface of the protective handle (8) is fixedly connected to a squeezing block (10), which penetrates the protective top cover (2) and is slidably connected to the protective top cover (2).
7. The special saggar for firing a cathode material according to claim 1, wherein: The bottom surface of the extension sleeve (4) is fixedly connected to a connecting column (11), and the bottom end of the connecting column (11) is fixedly connected to a sintering plate (12). The sintering plate (12) slides inside the sagger shell (1).
8. The special sagger for firing positive electrode materials according to claim 1, characterized in that: The top surface of the protective cover (2) is fixedly connected to a set of ventilation windows (13), and each ventilation window (13) has ventilation micro-holes inside.