Raw material mixing device for preparing phosphorus and titanium electrode materials

Abstract

The utility model relates to the technical field of raw material mixing of electrode materials, and discloses a raw material mixing device for preparing phosphorus-based and titanium-based electrode materials, which comprises a tank body provided with a mounting position; the mixing assembly is arranged in the tank body, the mixing assembly is used for mixing raw materials, the mixing assembly comprises a driving roller, a driving motor, a plurality of driven rollers, a plurality of filter cartridges and a bidirectional fan, the driving motor is fixedly connected with the tank body, and the driving roller, the plurality of driven rollers and the plurality of filter cartridges are all in transmission connection with the output end of the driving motor; each filter cartridge is communicated with the bidirectional fan, the bidirectional fan introduces inert gas into the filter cartridges, inhibits the activity of the raw materials and cools the raw materials, after mixing is completed, an extraction mode is switched to discharge the materials, and the driving motor synchronously drives the driving roller, the driven roller and the filter cartridges; the driving roller forms a main stirring area to mix raw materials, the driven roller extends a material path through staggered flow guide and prevents motion interference, and the filter cylinder rubs with the cleaning brush to achieve self-cleaning when rotating.

Description

Technical Field

[0001] This utility model belongs to the field of electrode material raw material mixing technology, specifically, it relates to a raw material mixing device for preparing phosphorus-based and titanium-based electrode materials. Background Technology

[0002] Phosphorus-based and titanium-based electrode materials (such as lithium iron phosphate LiFePO4, lithium titanate Li4Ti5O) 12 The preparation of (etc.) involves complex process control, and the feasibility of material structure, electrochemical performance and large-scale production must be taken into account.

[0003] A document with publication number (CN211411658U) discloses a horizontal mixing device for mixing electrode materials, belonging to the technical field of mixing devices. This horizontal mixing device includes a shell, with a feeding port on one side of the outer wall and a discharge door fixed to the bottom outer wall via hinges. Four support legs are welded to the bottom outer wall of the shell. A first motor is fixed to one side of the outer wall via a first motor base, a second motor via a second motor base, and a third motor via a third motor base. A crushing chamber and a mixing chamber are arranged inside the shell, with the crushing chamber located above the mixing chamber. By incorporating the crushing and mixing chambers, the device can first crush and then mix the raw materials, increasing mixing efficiency.

[0004] However, in the production and mixing of phosphorus-based and titanium-based electrode materials, the activity of the raw materials needs to be controlled. After prolonged operation, the internal temperature of the components inside the aforementioned device continues to rise, leading to excessive oxidation of the phosphorus-based materials and the formation of Fe. 3+ Impurity phases (such as Fe2O3), titanium-based Ti 4 +Over-reduction to Ti 3+ The quality of electrode raw materials is affected during the preparation and mixing stage.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] To solve the technical problem of raw material mixing, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A raw material mixing device for preparing phosphorus-based and titanium-based electrode materials includes a tank with an installation position; a mixing component disposed inside the tank, the mixing component being used to mix the raw materials, the mixing component including a drive roller, a drive motor, driven rollers, filter cartridges and a bidirectional fan, the drive motor being fixedly connected to the tank, the drive roller, multiple driven rollers and multiple filter cartridges being drivenly connected to the output end of the drive motor, and each filter cartridge being connected to the bidirectional fan.

[0008] In a preferred embodiment of this utility model, the output end of the drive motor is fixedly connected to a drive gear, and a plurality of driven gears are meshed around the drive gear. The drive motor and each driven gear are both located at the bottom of the tank, and the drive motor and each driven gear are rotatably connected to the tank.

[0009] In a preferred embodiment of this utility model, the driving roller is fixedly connected to the driving gear, each driven roller and filter cylinder is fixedly connected to the corresponding driven gear, and the driven rollers and filter cylinders are staggered. The bottom of each driven roller and filter cylinder penetrates the bottom of the tank and is rotatably connected to the bottom of the tank.

[0010] In a preferred embodiment of this utility model, the bidirectional fan is fixedly connected to multiple connecting pipes, and a sealing ring is installed at the connection between the corresponding filter cartridge and the connecting pipe. Each connecting pipe and its corresponding filter cartridge are rotatably connected to the sealing ring.

[0011] In a preferred embodiment of this utility model, the active roller is provided with an array of stirring blocks, each stirring block is fixedly connected to the active roller, and the stirring blocks around each stirring block are inclined upward.

[0012] In a preferred embodiment of the present invention, each driven roller is provided with an array of guide blocks, each guide block is fixedly connected to the corresponding driven roller, and the end of each guide block is inclined upward in the same direction.

[0013] In a preferred embodiment of this utility model, each filter cartridge is symmetrically provided with a cleaning brush around its periphery, and each cleaning brush abuts against the corresponding filter cartridge and is fixedly connected to the inner wall of the tank.

[0014] In a preferred embodiment of the present invention, a cover plate is provided at the upper end of the tank body, the cover plate is connected to the tank body by fasteners, a pipe is fixedly connected to the middle of the cover plate, and supports are symmetrically provided on the wall of the tank body, and each support is fixedly connected to the tank body.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. A raw material mixing device for preparing phosphorus-based and titanium-based electrode materials, wherein an inert gas is introduced into the filter cartridge by a bidirectional fan to inhibit the activity of the raw materials and cool them down, and after mixing is completed, the device switches to extraction mode to discharge the materials.

[0017] 2. A raw material mixing device for preparing phosphorus-based and titanium-based electrode materials, wherein a drive motor synchronously drives an active roller, a driven roller, and a filter cylinder; the active roller forms the main stirring zone to mix the raw materials, and the driven roller extends the material path and prevents motion interference by staggered flow guidance.

[0018] 3. A raw material mixing device for preparing phosphorus-based and titanium-based electrode materials, wherein the stirring block is tilted to lift the material to achieve scattering and mixing, and the guide block is tilted to form directional flow to prevent accumulation.

[0019] 4. A raw material mixing device for preparing phosphorus-based and titanium-based electrode materials, wherein the filter cartridge is self-cleaning by friction with the cleaning brush when rotating, the support supports the tank, and the cover plate is removable for easy maintenance.

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0021] In the attached diagram:

[0022] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0023] Figure 2 This is a top view of the internal structure of the tank of this utility model;

[0024] Figure 3 This is a schematic diagram of the hybrid component structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure between the driving roller and the driven roller of this utility model;

[0026] Figure 5 This is a schematic diagram of the filter cartridge structure of this utility model.

[0027] In the diagram: 1. Tank body; 11. Cover plate; 12. Support; 2. Drive roller; 21. Stirring block; 3. Drive motor; 31. Drive gear; 32. Driven gear; 4. Driven roller; 41. Guide block; 5. Filter cartridge; 51. Cleaning brush; 6. Two-way fan; 61. Connecting pipe. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0029] Please see Figure 1-5A raw material mixing device for preparing phosphorus-based and titanium-based electrode materials includes a tank 1 with an installation position; a mixing assembly disposed inside the tank 1, used for mixing raw materials, the mixing assembly including a drive roller 2, a drive motor 3, driven rollers 4, filter cartridges 5, and a bidirectional fan 6. The drive motor 3 is fixedly connected to the tank 1. The drive roller 2, multiple driven rollers 4, and multiple filter cartridges 5 are all drivenly connected to the output end of the drive motor 3. Each filter cartridge 5 is connected to the bidirectional fan 6. The drive motor 3 is synchronously connected to the drive motor 6. The system drives the active roller 2, driven roller 4, and filter cartridge 5. The active roller 2 forms the main mixing zone to mix the raw materials, while the driven roller 4 extends the material path and prevents motion interference through staggered flow guidance. The bidirectional fan 6 introduces inert gas into the filter cartridge 5 to suppress the activity of the raw materials and cool them down. After mixing, the system switches to extraction mode to discharge the materials. The stirring block 21 tilts to lift the materials to achieve scattering and mixing, and the guide block 41 tilts to form directional flow to prevent accumulation. When the filter cartridge 5 rotates, it rubs against the cleaning brush 51 for self-cleaning. The bracket 12 supports the tank 1, and the cover plate 11 is detachable for easy maintenance.

[0030] The drive motor 3 has a fixedly connected drive gear 31 at its output end. Multiple driven gears 32 are meshed around the drive gear 31. The drive motor 3 and each driven gear 32 are located at the bottom of the tank body 1 and are rotatably connected to the tank body 1. The drive roller 2 is fixedly connected to the drive gear 31. Each driven roller 4 and filter cylinder 5 is fixedly connected to its corresponding driven gear 32, and the driven rollers 4 and filter cylinders 5 are staggered. The bottom of each driven roller 4 and filter cylinder 5 penetrates the bottom of the tank body 1 and is rotatably connected to the bottom of the tank body 1. The drive motor 3 drives the drive gear 31 to rotate through its output end. The drive gear 31 meshes with multiple driven gears 32. Gears 32 mesh, and the driving gear 31 and driven gear 32 drive the driving roller 2, driven roller 4 and filter cylinder 5 to rotate respectively. The driving roller 2 forms the main stirring area during rotation, which fully mixes the raw materials in the central area. The driven roller 4 stirs the surrounding area and forms a directional flow, which increases the movement trajectory of the raw materials and guides the movement trajectory of the raw materials to the periphery of the filter cylinder 5. The staggered arrangement between the driven roller 4 and the filter cylinder 5 avoids motion interference between the internal components during movement, and the staggered arrangement extends the processing path of the raw materials. Furthermore, the drive motor 3, driving gear 31 and driven gear 32 form a multi-axis synchronous drive and realize the power distribution.

[0031] The bidirectional blower 6 is fixedly connected to multiple connecting pipes 61. A sealing ring is installed at the connection point between the corresponding filter cartridge 5 and the connecting pipe 61. Each connecting pipe 61 and its corresponding filter cartridge 5 are rotatably connected to the sealing ring. During the raw material mixing inside the tank 1, the port of the bidirectional blower 6 is connected to an inert gas source. The inert gas is then fed into the filter cartridge 5 through the connecting pipe 61, and then into the tank 1 through the filter cartridge 5. The inert gas inhibits the activity of the raw materials inside the tank 1, and the gas flow further stimulates the reaction within the tank 1. The temperature of the components is carried away to prevent the raw materials from reacting excessively and affecting the quality, or from exploding due to excessive temperature, which could threaten the safety of surrounding personnel. The inert gas is used to prevent the raw materials from entering the filter cartridge 5, which would cause unmixed raw materials to be discharged directly. After the raw materials in the tank 1 are mixed, the port of the bidirectional fan 6 is pulled out from the inert gas and placed in a collection device (such as a box or tank). The bidirectional fan 6 is used to inhibit the activity of the raw materials in the tank 1 and to quickly discharge the mixed materials.

[0032] It is worth noting that the bidirectional fan 6 is an existing mature technology. To achieve the opposite extraction direction of the bidirectional fan 6, it is only necessary to change the rotation direction of the fan blades inside the bidirectional fan 6. Therefore, the bidirectional motor 6 is not fully disclosed in the article and will not be elaborated here.

[0033] The active roller 2 is equipped with an array of stirring blocks 21, each of which is fixedly connected to the active roller 2. The stirring blocks around the periphery of each stirring block 21 are inclined upwards. The driven roller 4 is equipped with an array of guide blocks 41, each of which is fixedly connected to the corresponding driven roller 4. The ends of each guide block 41 are inclined upwards in the same direction. When the active roller 2 rotates, it drives the corresponding stirring block 21 to rotate. The upward inclination of the stirring blocks around the stirring block 21 lifts and scatters the raw material during rotation. This lifting and scattering of the raw material promotes the uniformity of mixing. When the driven roller 4 rotates, it drives the guide blocks 41 to rotate. The inclined guide blocks 41 form a cone shape during rotation. The upward inclination of the guide blocks 41 forms a directional flow path, optimizing the flow efficiency of the raw material, preventing local accumulation of the raw material in the tank 1, avoiding insufficient mixing of the raw material due to accumulation, and increasing the contact area between the raw material and the filter cartridge 5.

[0034] Each filter cartridge 5 is symmetrically equipped with a cleaning brush 51 around its periphery. Each cleaning brush 51 abuts against the corresponding filter cartridge 5 and is fixedly connected to the inner wall of the tank 1. The filter cartridge 5 increases the contact area with the raw material during rotation. The centrifugal force and extraction force generated by the bidirectional fan 6 after the raw material is mixed increase the discharge rate of the raw material. During the rotation of the filter cartridge 5, it rubs against the corresponding cleaning brush 51. The friction between the cleaning brush 51 and the filter cartridge 5 performs self-cleaning on the wall surface of the filter cartridge 5, preventing the raw material from getting stuck and accumulating on the wall surface of the filter cartridge 5, which would affect the exhaust and extraction rate of the filter cartridge 5.

[0035] The tank 1 has a cover plate 11 at its upper end, which is connected to the tank 1 by fasteners, including but not limited to bolts. A pipe is fixedly connected to the middle of the cover plate 11. Supports 12 are symmetrically arranged on the wall of the tank 1, and each support 12 is fixedly connected to the tank 1. The tank 1 is supported by the bottom supports 12. Raw materials are fed into the tank 1 through the pipe in the middle of the cover plate 11. When it is necessary to repair or replace the parts inside the device, the tank 1 and the cover plate 11 are separated by fasteners, which facilitates the repair and replacement of the parts inside the tank 1, extends the service life of the device, and improves the repair and replacement efficiency.

[0036] Working principle: The drive motor 3 drives the drive gear 31 to rotate through its output end. The drive gear 31 meshes with the driven gear 32, which in turn drives the drive roller 2, driven roller 4, and filter cylinder 5 to rotate. The drive roller 2 forms the main mixing zone during rotation, thoroughly mixing the raw materials in the central area. The driven roller 4 stirs the surrounding area and forms a directional flow, increasing the movement trajectory of the raw materials and guiding them to the periphery of the filter cylinder 5. The staggered arrangement between the driven roller 4 and the filter cylinder 5 avoids motion interference between internal components during movement and extends the processing path of the raw materials. Furthermore, the drive motor 3, drive gear 31, and driven gear 32 form a multi-axis synchronous system. Driven and realizing the power diversion, the bidirectional blower 6, during the raw material mixing inside the tank 1, connects its port to the inert gas, which is then sent into the filter cartridge 5 through the connecting pipe 61. The filter cartridge 5 then sends the inert gas into the tank 1. The inert gas inhibits the activity of the raw materials in the tank 1, and the gas flow carries away the temperature of the components inside the tank 1, preventing the raw materials from reacting excessively and affecting quality, or from exploding due to excessive temperature, posing a safety threat to surrounding personnel. Furthermore, the inert gas delivery prevents raw materials from entering the filter cartridge 5, causing unmixed raw materials to be directly discharged. Once the raw materials in the tank 1 are mixed, the port of the bidirectional blower 6 is withdrawn from the inert gas, and the bidirectional blower 6... The port is placed inside the collection device (such as a box, tank, etc.). The bidirectional fan 6 completes the activity inhibition of the raw materials in the tank 1 and the rapid discharge of the mixed materials. The active roller 2 drives the corresponding stirring block 21 to rotate during rotation. The stirring blocks around the stirring block 21 are set to be tilted upwards, which lifts and throws the raw materials upwards during rotation. The lifting and throwing of the raw materials promotes the uniformity of mixing. The driven roller 4 drives the guide block 41 to rotate during rotation. The tilted guide block 41 forms a cone shape during rotation. The upward tilt of the guide block 41 forms a directional flow path, optimizes the flow efficiency of the raw materials, prevents local accumulation of raw materials in the tank 1, avoids insufficient mixing of raw materials due to accumulation, and increases the contact area between the raw materials and the filter cartridge 5. The rotation increases the contact area with the raw materials. The centrifugal force and extraction force generated by the bidirectional fan 6 after the raw materials are mixed increase the discharge rate of the raw materials. During the rotation of the filter cartridge 5, it rubs against the corresponding cleaning brush 51. The friction between the cleaning brush 51 and the filter cartridge 5 cleans the wall of the filter cartridge 5, preventing the raw materials from getting stuck and accumulating on the wall of the filter cartridge 5, which would affect the exhaust and extraction rate of the filter cartridge 5. The bottom bracket 12 supports the tank 1. The raw materials are sent into the tank 1 through the pipe in the middle of the cover plate 11. When it is necessary to repair or replace the parts inside the device, the tank 1 and the cover plate 11 are separated by fasteners, which facilitates the repair and replacement of the parts inside the tank 1, extends the service life of the device, and improves the repair and replacement efficiency.

[0037] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A raw material mixing apparatus for preparing phosphorus-based and titanium-based electrode materials, characterized in that, include: Tank body (1), with an installation position provided on the tank body (1); The mixing component is set inside the tank (1) and is used to mix the raw materials. The mixing component includes an active roller (2), a drive motor (3), a driven roller (4), a filter cartridge (5) and a bidirectional fan (6). The drive motor (3) is fixedly connected to the tank (1). The active roller (2), multiple driven rollers (4) and multiple filter cartridges (5) are all connected to the output end of the drive motor (3). Each filter cartridge (5) is connected to the bidirectional fan (6).

2. The raw material mixing device for phosphorus-based and titanium-based electrode material production according to claim 1, characterized in that, The output end of the drive motor (3) is fixedly connected to the drive gear (31), and multiple driven gears (32) are meshed around the drive gear (31). The drive motor (3) and each driven gear (32) are located at the bottom of the tank (1), and the drive motor (3) and each driven gear (32) are rotatably connected to the tank (1).

3. The raw material mixing device for phosphorus-based and titanium-based electrode material production according to claim 1, characterized in that, The driving roller (2) is fixedly connected to the driving gear (31), and each driven roller (4) and filter cylinder (5) is fixedly connected to the corresponding driven gear (32). The driven rollers (4) and filter cylinders (5) are staggered. The bottom of each driven roller (4) and filter cylinder (5) penetrates the bottom of the tank (1) and is rotatably connected to the bottom of the tank (1).

4. The raw material mixing device for phosphorus-based and titanium-based electrode material production according to claim 1, characterized in that, The bidirectional fan (6) is fixedly connected to multiple connecting pipes (61), and a sealing ring is installed at the connection between the corresponding filter cartridge (5) and the connecting pipe (61). Each connecting pipe (61) and the corresponding filter cartridge (5) are rotatably connected to the sealing ring.

5. The raw material mixing device for phosphorus-based and titanium-based electrode material production according to claim 1, characterized in that, The active roller (2) is provided with an array of stirring blocks (21), each stirring block (21) is fixedly connected to the active roller (2), and the stirring blocks around each stirring block (21) are inclined upward.

6. The raw material mixing device for phosphorus-based and titanium-based electrode material production according to claim 1, characterized in that, Each driven roller (4) is provided with an array of guide blocks (41), each guide block (41) is fixedly connected to the corresponding driven roller (4), and the end of each guide block (41) is inclined upward in the same direction.

7. The raw material mixing device for phosphorus-based and titanium-based electrode material production according to claim 1, characterized in that, Each of the filter cartridges (5) is symmetrically provided with cleaning brushes (51) around its periphery, and each cleaning brush (51) abuts against the corresponding filter cartridge (5), and each cleaning brush (51) is fixedly connected to the inner wall of the tank (1).

8. The raw material mixing device for phosphorus-based and titanium-based electrode material production according to claim 1, characterized in that, The upper end of the tank (1) is provided with a cover plate (11), and the cover plate (11) is connected to the tank (1) by fasteners. A pipe is fixedly connected to the middle of the cover plate (11). Supports (12) are symmetrically provided on the wall of the tank (1), and each support (12) is fixedly connected to the tank (1).

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