Lithium manganese iron phosphate nitrogen protection roller way sintering furnace

Abstract

The lithium manganese iron phosphate nitrogen protection roller way sintering furnace comprises a sintering furnace body, a communication mechanism installed on the outer side of the sintering furnace body and a roller way mechanism communicated with the communication mechanism, the communication mechanism comprises a connecting frame, a circulation hole, a limiting groove and an inserting groove, the circulation hole penetrates through the inner side and the outer side of the connecting frame, and the limiting groove is communicated with the inserting groove. The limiting groove is formed in the upper half portion of the interior of the connecting frame, the inserting-connecting groove is formed in the half portion of the interior of the connecting frame, the limiting groove, the inserting-connecting groove and the circulating hole communicate with one another, the circulating hole communicates with the interior of the sintering furnace body, and the roller way mechanism comprises a circulating pipeline, an inserting-connecting plate and a positioning screw barrel. And the plug board is mounted on the outer side of the circulation pipeline. Under the support of multiple specifications of the communication mechanism, the specification of the roller way mechanism is adjusted, installed and used according to the actual situation, the diversity of the circulation use specification of the device is improved, and the circulation use of the device under different volumes is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium manganese iron phosphate processing, in particular to a lithium manganese iron phosphate nitrogen-protected roller sintering furnace. Background Art

[0002] Lithium manganese iron phosphate is a new type of lithium-ion battery positive electrode material, which is formed by doping a certain proportion of manganese into lithium iron phosphate.

[0003] In the industrialization process of lithium manganese iron phosphate, it is processed through a sintering furnace and then assisted by nitrogen. While protecting the material from oxidation, it also helps to improve the performance of the material. During the preparation process of lithium manganese iron phosphate, the demand for nitrogen will vary depending on the amount of preparation and different stages. The specifications of the gas pipes of existing roller sintering furnaces are usually fixed. A large pipe diameter will affect the efficiency of nitrogen transportation and the production of lithium manganese iron phosphate. When the pipe diameter is small, its internal pressure is large, and there is a certain risk of "pipe explosion". Therefore, it is necessary to adjust the specifications of the gas pipe to ensure that the nitrogen transportation volume is always at a peak state compared to the demand for lithium manganese iron phosphate production. For this reason, we propose a lithium manganese iron phosphate nitrogen-protected roller sintering furnace. Summary of the Invention

[0004] The present invention addresses the problem of relatively single specifications of circulation pipes in the prior art and proposes the following technical solutions:

[0005] A lithium manganese iron phosphate nitrogen-protected roller sintering furnace comprises a sintering furnace body, a connecting mechanism installed outside the sintering furnace body, and a roller mechanism connected to the connecting mechanism.

[0006] The connecting mechanism includes a connecting frame, a circulation hole, a limiting groove, and a plug-in groove. The circulation hole runs through the inner and outer sides of the connecting frame. The limiting groove is opened in the upper half of the interior of the connecting frame. The plug-in groove is opened in the inner half of the connecting frame. The limiting groove, the plug-in groove, and the circulation hole are connected to each other, and the circulation hole is connected to the interior of the sintering furnace body.

[0007] The roller mechanism includes a circulation pipe, a plug-in plate, and a positioning screw barrel. The plug-in plate is installed on the outside of the circulation pipe, the positioning screw barrel is threadedly screwed and installed on the outside of the circulation pipe, and the plug-in plate is plugged into the plug-in groove, and the circulation pipe is connected to the circulation hole.

[0008] The communication mechanism includes a sealing frame for sealing the upper half of the connecting frame, and a sealing block plugged into the plug-in groove and the limiting groove at the same time, and the sealing block is installed at the lower end of the sealing frame.

[0009] As a preferred embodiment of the above technical solution, the connecting mechanism further includes an auxiliary plug-in groove for limiting support, the auxiliary plug-in groove is opened at the lower end of the sealing block, and the auxiliary plug-in groove is plugged into the plug-in board.

[0010] As a preferred embodiment of the above technical solution, the component for limiting support in the connecting mechanism also includes a fastening groove and a fastening bolt, the fastening bolt is threadedly connected to the sealing frame and extends to its lower end, and the fastening bolt is threadedly connected to the fastening groove.

[0011] As a preferred embodiment of the above technical solution, an auxiliary ring is installed on a surface of the connecting frame away from the sintering furnace body, and the auxiliary ring is threadedly connected to the positioning screw barrel.

[0012] As a preferred embodiment of the above technical solution, a fastening block is provided above the auxiliary ring, a positioning head is installed at the lower end of the fastening block, the positioning head is plugged into the auxiliary ring, and the positioning screw barrel is simultaneously screwed together with the inner wall thread of the positioning head.

[0013] The beneficial effects of the utility model are:

[0014] (1) With the support of multiple specifications of the connecting mechanism, the specifications of the roller mechanism are adjusted and installed according to actual conditions to improve the diversity of the specifications of the device circulation and use, so as to improve the circulation and use of the device under different volumes;

[0015] (2) When the sealing block is plugged into the plug-in slot, the plug-in plate is plugged into the plug-in auxiliary slot, which further improves the accuracy of the sealing frame position and achieves a tight connection and sealing effect on the upper end of the plug-in plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is an exploded view of the connection method;

[0017] Figure 2 Shown is a cross-sectional view of the plug-in method;

[0018] Figure 3 Shown is an overall view of the sealing frame;

[0019] Figure 4 Shown is a front view of the entire device.

[0020] In the figure: 1. Sintering furnace body; 2. Connecting frame; 201. Circulation hole; 202. Limiting groove; 203. Plug-in groove; 204. Fastening groove; 205. Sealing frame; 206. Sealing block; 207. Plug-in auxiliary groove; 208. Fastening bolt; 209. Auxiliary ring; 210. Fastening block; 211. Positioning head; 3. Circulation pipe; 301. Plug-in plate; 302. Positioning screw. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0022] Example

[0023] Figures 1-4 What is shown is a schematic diagram of the overall structure of a specific embodiment of the utility model. Figures 1-4 A lithium manganese iron phosphate nitrogen-protected roller sintering furnace includes a sintering furnace body 1, a connecting mechanism installed on the outside of the sintering furnace body 1, and a roller mechanism connected to the connecting mechanism.

[0024] The connecting mechanism includes a connecting frame 2, a circulation hole 201, a limiting groove 202, and a plug-in groove 203. The circulation hole 201 runs through the inner and outer sides of the connecting frame 2, the limiting groove 202 is opened in the upper half of the interior of the connecting frame 2, and the plug-in groove 203 is opened in the inner half of the connecting frame 2. The limiting groove 202, the plug-in groove 203, and the circulation hole 201 are connected to each other, and the circulation hole 201 is connected to the interior of the sintering furnace body 1.

[0025] The roller mechanism includes a circulation pipe 3, a plug-in plate 301, and a positioning screw 302. The plug-in plate 301 is installed on the outside of the circulation pipe 3, and the positioning screw 302 is threadedly installed on the outside of the circulation pipe 3. The plug-in plate 301 is plugged into the plug-in groove 203, and the circulation pipe 3 is connected to the circulation hole 201.

[0026] Under the support of multiple specifications of the connecting mechanism, the specifications of the roller mechanism are adjusted and installed according to actual conditions to improve the diversity of the circulation and use specifications of the device, so as to improve the circulation and use of the device under different volumes. Specifically, the circulation pipe 3 is moved to drive the plug-in plate 301 to be plugged into the plug-in slot 203 from above the connecting frame 2, and then, under the connection between the flow hole 201 and the inside of the connecting frame 2 and the flow pipe 3, the gas inside the sintering furnace body 1 is guided to flow after passing through the connecting frame 2 and the flow pipe 3, and then the gas inside the sintering furnace body 1 is guided to flow according to the actual circulation volume and flow rate. According to the needs of degree, the circulation pipes 3 of different specifications are replaced, and each circulation pipe 3 is connected with a plug board 301 with the same specifications as the plug slot 203, and the specifications of the plug slot 203 increase from the inside to the outside. While ensuring the stability of the plug board 301 of the corresponding specification, the smooth flow of the circulation pipe 3 of each specification and the plug board 301 when placed is improved, and the plug slot 203 itself is effectively prevented from blocking the gas flow, so that the device has the effect of convenient replacement of roller assemblies of different specifications, and at the same time, the accurate and stable circulation is guaranteed.

[0027] Figure 1 Shown is a schematic diagram of the sealing structure of a specific embodiment of the present invention. Figure 1In the embodiment, the connecting mechanism includes a sealing frame 205 for sealing the upper half of the connecting frame 2, and a sealing block 206 that is plugged into the plug-in groove 203 and the limiting groove 202. The sealing block 206 is installed at the lower end of the sealing frame 205.

[0028] By moving the sealing frame 205, the sealing block 206 is driven to be plugged into the limiting groove 202 and the plug-in groove 203 at the same time. At the same time, the plug-in groove 203 and the sealing block 206 play a plug-in limiting role, ensuring the accurate position of the sealing frame 205 when sealing in use.

[0029] Figure 1-Figure 3 What is shown is a schematic diagram of the limiting structure of a specific embodiment of the utility model. Figure 1-Figure 3 In the embodiment, the connecting mechanism further includes an auxiliary plug-in groove 207 for limiting support. The auxiliary plug-in groove 207 is opened at the lower end of the sealing block 206 , and the auxiliary plug-in groove 207 is plugged into the plug-in board 301 .

[0030] The components used for position limiting support in the communication mechanism also include a fastening groove 204 and a fastening bolt 208 . The fastening bolt 208 is threadedly connected to the sealing frame 205 and extends to its lower end. The fastening bolt 208 is threadedly connected to the fastening groove 204 .

[0031] When the sealing block 206 is plugged into the plug-in groove 203, the plug-in plate 301 is plugged into the plug-in auxiliary groove 207, which further improves the accuracy of the position of the sealing frame 205 and has a tight connection and sealing effect on the upper end of the plug-in plate 301. Then, the fastening bolt 208 is rotated to rotate and fasten it with the fastening groove 204, and a rubber ring is added between the limit groove 202 and the connecting frame 2 for sealing, so as to achieve a stable sealing connection between the connecting frame 2 and the sealing frame 205, thereby ensuring the stability of the device during circulation and use.

[0032] Figure 1 Shown is a schematic diagram of an auxiliary limiting structure as a specific embodiment of the utility model. Figure 1 In the embodiment, an auxiliary ring 209 is installed on the surface of the connecting frame 2 on the side away from the sintering furnace body 1 , and the auxiliary ring 209 is screwed together with the positioning screw barrel 302 .

[0033] A fastening block 210 is provided above the auxiliary ring 209 , and a positioning head 211 is installed at the lower end of the fastening block 210 . The positioning head 211 is plugged into the auxiliary ring 209 , and the positioning screw 302 is simultaneously screwed into the inner wall of the positioning head 211 by threads.

[0034] By rotating the positioning screw 302, its inner wall is rotated and tightened with the outer side of the circulation pipe 3, and its outer side is rotated and tightened with the positioning head 211 and the inner wall of the auxiliary ring 209, the circulation pipe 3 is limited inside the auxiliary ring 209 to ensure its reliable position when connected and used, and then the fastening bolt 208 on the fastening block 210 is rotated and tightened to achieve the profile sealing effect between the auxiliary ring 209, the fastening block 210, and the positioning screw 302, as well as the sealed connection between the auxiliary ring 209 itself and the connecting frame 2, further improving the air tightness of the internal circulation support of the connecting frame 2.

[0035] Working principle: First, move the circulation pipe 3, drive the plug-in plate 301 to plug and limit the position with the plug-in groove 203 from the top of the connecting frame 2, then move the sealing frame 205, drive the sealing block 206 to plug into the limiting groove 202 and the plug-in groove 203 at the same time, plug the plug-in plate 301 into the plug-in auxiliary groove 207, then rotate the fastening bolt 208 to rotate and fasten it with the fastening groove 204, and at the same time rotate the positioning screw barrel 302 to rotate and fasten its inner wall with the outer side of the circulation pipe 3, and rotate and fasten its outer side with the positioning head 211 and the inner wall of the auxiliary ring 209, limit the circulation pipe 3 inside the auxiliary ring 209, ensure its reliable position when connected and used, and then rotate and fasten the fastening bolt 208 on the fastening block 210 to make the auxiliary ring 209, the fastening block 210, and the positioning screw barrel 302 rotate and fasten it. 302, and then the gas inside the sintering furnace body 1 is guided to flow through the connecting frame 2 and the flow pipe 3 under the connection between the flow hole 201 and the inside of the connecting frame 2 and the flow pipe 3. Then, according to the actual flow volume and flow speed requirements, the flow pipes 3 of different specifications are replaced, and each flow pipe 3 is connected with a plug-in board 301 with the same specifications as the plug-in slot 203, and the specifications of the plug-in slot 203 increase from the inside to the outside, ensuring the stability of the plug-in board 301 of the corresponding specification, while improving the smoothness of the flow of each specification of the flow pipe 3 and the plug-in board 301 when placed, effectively preventing the plug-in slot 203 itself from blocking the gas flow, so that the device has the effect of convenient replacement of roller assemblies of different specifications.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. A nitrogen-protected roller sintering furnace for lithium manganese iron phosphate, comprising a sintering furnace body (1), a connecting mechanism installed outside the sintering furnace body (1), and a roller mechanism connected to the connecting mechanism, characterized in that: The communication mechanism comprises a connecting frame (2), a circulation hole (201), a limiting groove (202), and a plug-in groove (203); the circulation hole (201) runs through both the inner and outer sides of the connecting frame (2); the limiting groove (202) is provided in the upper half of the interior of the connecting frame (2); the plug-in groove (203) is provided in the inner half of the connecting frame (2); the limiting groove (202), the plug-in groove (203), and the circulation hole (201) are interconnected, and the circulation hole (201) is connected to the interior of the sintering furnace body (1); The roller mechanism comprises a circulation pipe (3), a plug-in plate (301), and a positioning screw barrel (302); the plug-in plate (301) is installed on the outside of the circulation pipe (3); the positioning screw barrel (302) is screwed and installed on the outside of the circulation pipe (3); the plug-in plate (301) is plugged into the plug-in groove (203), and the circulation pipe (3) is communicated with the circulation hole (201).

2. A lithium manganese iron phosphate nitrogen-protected roller sintering furnace according to claim 1, characterized in that: The connecting mechanism comprises a sealing frame (205) for sealing the upper half of the connecting frame (2), and a sealing block (206) plugged into the plug-in slot (203) and the limiting slot (202), wherein the sealing block (206) is installed at the lower end of the sealing frame (205).

3. A lithium manganese iron phosphate nitrogen-protected roller sintering furnace according to claim 2, characterized in that: The communication mechanism further comprises an auxiliary plug-in groove (207) for position limiting support, the auxiliary plug-in groove (207) is opened at the lower end of the sealing block (206), and the auxiliary plug-in groove (207) is plugged into the plug-in board (301).

4. The lithium manganese iron phosphate nitrogen-protected roller sintering furnace according to claim 2, characterized in that: The components for position limiting support in the communication mechanism also include a fastening groove (204) and a fastening bolt (208). The fastening bolt (208) is threadedly connected to the sealing frame (205) and extends to its lower end. The fastening bolt (208) is threadedly connected to the fastening groove (204).

5. The lithium manganese iron phosphate nitrogen-protected roller sintering furnace according to claim 2, characterized in that: An auxiliary ring (209) is installed on the surface of the connecting frame (2) on one side away from the sintering furnace body (1), and the auxiliary ring (209) is threadedly connected to the positioning screw barrel (302).

6. The lithium manganese iron phosphate nitrogen-protected roller sintering furnace according to claim 5, characterized in that: A fastening block (210) is provided above the auxiliary ring (209), a positioning head (211) is installed at the lower end of the fastening block (210), the positioning head (211) is plugged into the auxiliary ring (209), and the positioning screw barrel (302) is simultaneously screwed and connected with the inner wall of the positioning head (211).

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