Slurry suction filtration device

Abstract

The utility model discloses a slurry suction filtration device, which belongs to the technical field of filtering devices and comprises a mixing barrel, a driving component is arranged on the mixing barrel, a stirring shaft is rotatably connected in the mixing barrel and connected with the output end of the driving component, and a plurality of stirring blades are fixedly connected to the side wall of the stirring shaft in the circumferential direction. Included angles are formed between the stirring blades and the axis of the stirring shaft; a material receiving barrel is arranged at the bottom of the material mixing barrel, a mesh screen is arranged at the bottom of the material mixing barrel, the mesh screen is located between the stirring blades and the material receiving barrel, and a negative pressure assembly is arranged on the material receiving barrel. Slurry in the mixing barrel can be quickly pressed into the receiving barrel through the mesh screen under the triple action of the lower pressure of the stirring blades, the gravity and the atmospheric pressure, so that the filtering rate of the slurry is greatly improved, meanwhile, the problem of slurry sedimentation in the stirring process is reduced, and the uniformity of the slurry is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering devices, in particular to a slurry suction filtering device. Background Art

[0002] In the manufacturing process of lithium-ion battery cells, the homogenization and coating processes are carried out first, and then the subsequent process treatments are carried out. The homogenization process is to homogenize the active materials, conductive additives, and binder battery components in the solvent. The particle size of each raw material powder is not completely consistent, especially the active materials often contain a small part of large-size particles and small-size particles. In order to eliminate the adverse effects of large particles on the homogenization and coating process, the mixed slurry needs to be filtered to ensure the stability and uniformity of the slurry.

[0003] During the filtration process, operators often screen the slurry manually. This method is not only inefficient and difficult to ensure the uniformity of the slurry, but also has high labor costs.

[0004] Therefore, a slurry filtration device is proposed. Utility Model Content

[0005] The utility model aims to provide a slurry filtration device, aiming to solve or improve at least one of the above technical problems.

[0006] To achieve the above-mentioned purpose, the utility model provides the following scheme: The utility model provides a slurry filtration device, comprising a mixing barrel, a driving assembly is arranged on the mixing barrel, a stirring shaft is rotatably connected in the mixing barrel, the stirring shaft is connected to the output end of the driving assembly, a plurality of stirring blades are circumferentially fixed to the side wall of the stirring shaft, and an angle is arranged between the stirring blades and the axis of the stirring shaft;

[0007] A material receiving barrel is arranged at the bottom of the mixing barrel, a mesh screen is arranged at the bottom of the mixing barrel, the mesh screen is located between the stirring blade and the material receiving barrel, and a negative pressure component is arranged on the material receiving barrel.

[0008] Preferably, the mixing barrel comprises an upper barrel body and a lower barrel body, the upper barrel body is detachably connected to the lower barrel body, one end of the upper barrel body away from the lower barrel body is threadedly connected to a top cover, the top cover is provided with the driving assembly, the lower barrel body is connected to the material receiving barrel, the inner wall of the lower barrel body is detachably connected to the mesh screen, and the stirring blade is located in the upper barrel body.

[0009] Preferably, an annular bracket is fixedly connected to the inner wall of the lower barrel body, a plurality of threaded holes are opened on the annular bracket, the mesh screen is placed above the annular bracket, a plurality of bolts are threadedly connected to the mesh screen, and the plurality of bolts are arranged in one-to-one correspondence with the plurality of threaded holes and are threadedly connected.

[0010] Preferably, the driving assembly comprises a motor fixedly connected to the top cover, and an output shaft of the motor passes through the top cover and is fixedly connected to the stirring shaft.

[0011] Preferably, the negative pressure component includes a vacuum pump fixedly connected to the outer wall of the material receiving barrel, an exhaust pipe is fixedly connected to the vacuum pump, an air hole is opened on the material receiving barrel, one end of the exhaust pipe away from the vacuum pump is fixedly connected to and communicated with the air hole, and a pressure gauge is fixedly connected to the material receiving barrel.

[0012] Preferably, a feeding pipe is fixedly connected to the bottom of the lower barrel body, and a connecting pipe is fixedly connected to the top of the receiving barrel. The diameter of the connecting pipe is smaller than the diameter of the receiving barrel. The inner wall of the connecting pipe is threadedly connected to the outer wall of the feeding pipe. The bottom of the feeding pipe extends into the receiving barrel, and the air hole is opened at the top of the receiving barrel.

[0013] Preferably, a discharge port is provided at the bottom of the material receiving barrel, and a bottom cover is threadedly connected to the discharge port.

[0014] Preferably, a sealing gasket is sandwiched between the upper barrel body and the lower barrel body.

[0015] The utility model discloses the following technical effects: the slurry is poured into a mixing barrel, and the driving component drives the stirring shaft to rotate, thereby driving the stirring blades to rotate. During the rotation of the stirring blades, downward pressure is provided to the slurry, and the negative pressure component makes the receiving barrel in a negative pressure state. Therefore, the slurry in the mixing barrel can be quickly pressed into the receiving barrel through the mesh screen under the triple effects of the downward pressure of the stirring blades, gravity and atmospheric pressure, thereby greatly improving the filtration rate of the slurry, reducing the occurrence of slurry sedimentation problems during the stirring process, and improving the uniformity of the slurry. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 It is an axonometric drawing of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the mixing barrel in the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the upper barrel body, the lower barrel body and the sealing gasket in the utility model;

[0020] Figure 4 It is an exploded view of the annular bracket, mesh screen and bolts in the utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the material receiving barrel in the utility model;

[0022] Figure 6 It is an exploded view of the lower material pipe, the material receiving barrel and the bottom cover in the utility model.

[0023] In the figure: 1. stirring shaft; 2. stirring blade; 3. collecting barrel; 4. mesh screen; 5. upper barrel body; 6. lower barrel body; 7. top cover; 8. ring bracket; 9. threaded hole; 10. bolt; 11. motor; 12. vacuum pump; 13. exhaust pipe; 14. pressure gauge; 15. discharge pipe; 16. connecting pipe; 17. discharge port; 18. bottom cover; 19. sealing gasket. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] Reference Figure 1-Figure 6 The utility model provides a slurry filtration device, including a mixing barrel, a driving assembly is arranged on the mixing barrel, a stirring shaft 1 is rotatably connected in the mixing barrel, the stirring shaft 1 is connected to the output end of the driving assembly, a plurality of stirring blades 2 are circumferentially fixedly connected to the side wall of the stirring shaft 1, an angle is arranged between the stirring blade 2 and the axis of the stirring shaft 1, and the angle is between 0° and 90°, so that the stirring blade 2 can apply downward pressure to the slurry in the mixing barrel when rotating;

[0027] A material receiving barrel 3 is provided at the bottom of the mixing barrel, a mesh screen 4 is provided at the bottom of the mixing barrel, the mesh screen 4 is located between the stirring blade 2 and the material receiving barrel 3, and a negative pressure component is provided on the material receiving barrel 3;

[0028] The distance between the edge of the stirring blade 2 and the inner wall of the mixing barrel is greater than 2 cm, and the distance between the bottom end of the stirring blade 2 and the mesh screen 4 is greater than 1 cm;

[0029] The slurry is poured into the mixing barrel, and the driving component drives the stirring shaft 1 to rotate, and then drives the stirring blade 2 to rotate. The stirring blade 2 provides downward pressure to the slurry during rotation, and the negative pressure component makes the receiving barrel 3 in a negative pressure state. Therefore, the slurry in the mixing barrel can be quickly pressed into the receiving barrel 3 through the mesh screen 4 under the triple action of the downward pressure of the stirring blade 2, gravity and atmospheric pressure, which greatly improves the filtration rate of the slurry. At the same time, the occurrence of slurry sedimentation problems is reduced during the stirring process, and the uniformity of the slurry is improved.

[0030] Further optimized solution, the mixing barrel includes an upper barrel body 5 and a lower barrel body 6, the upper barrel body 5 and the lower barrel body 6 are detachably connected, one end of the upper barrel body 5 away from the lower barrel body 6 is threadedly connected with a top cover 7, a driving assembly is arranged on the top cover 7, the lower barrel body 6 is connected with the receiving barrel 3, the inner wall of the lower barrel body 6 is detachably connected with the mesh screen 4, and the stirring blade 2 is located in the upper barrel body 5;

[0031] The upper barrel body 5 and the lower barrel body 6 can be detachably connected by multiple buckles, or can be connected by threaded connections or the like. This embodiment is not limited thereto, and any method is acceptable as long as it is convenient to open the upper barrel body 5 and the lower barrel body 6. Open the top cover 7 and add the paddle slurry into the upper barrel body 5.

[0032] Further optimizing the scheme, the inner wall of the lower barrel body 6 is fixedly connected with an annular bracket 8, and a plurality of threaded holes 9 are opened on the annular bracket 8. The mesh screen 4 is placed above the annular bracket 8, and a plurality of bolts 10 are threadedly connected on the mesh screen 4. The plurality of bolts 10 are arranged one by one corresponding to the plurality of threaded holes 9 and are threadedly connected;

[0033] The upper barrel body 5 and the lower barrel body 6 are opened and separated, and then the bolts 10 are removed, so that the mesh screen 4 can be removed, which is convenient for replacement and cleaning of the mesh screen 4.

[0034] According to a further optimized solution, the driving assembly includes a motor 11 fixedly connected to the top cover 7 , and an output shaft of the motor 11 passes through the top cover 7 and is fixedly connected to the stirring shaft 1 .

[0035] A further optimized solution is that the negative pressure component includes a vacuum pump 12 fixedly connected to the outer wall of the material receiving barrel 3, an exhaust pipe 13 is fixedly connected to the vacuum pump 12, an air hole is opened on the material receiving barrel 3, an end of the exhaust pipe 13 away from the vacuum pump 12 is fixedly connected to and communicated with the air hole, and a pressure gauge 14 is fixedly connected to the material receiving barrel 3; the vacuum pump 12 is used to make the inside of the material receiving barrel 3 in a negative pressure state, and the pressure value is monitored by the pressure gauge 14.

[0036] Further optimization scheme, a feed pipe 15 is fixedly connected to the bottom of the lower barrel body 6, a connecting pipe 16 is fixedly connected to the top of the receiving barrel 3, the diameter of the connecting pipe 16 is smaller than the diameter of the receiving barrel 3, the inner wall of the connecting pipe 16 is threadedly connected to the outer wall of the feed pipe 15, the bottom of the feed pipe 15 extends into the receiving barrel 3, and the air hole is opened at the top of the receiving barrel 3;

[0037] Such an arrangement allows the slurry to directly enter the material receiving barrel 3 through the discharge pipe 15 without being sucked away by the exhaust pipe 13 .

[0038] According to a further optimized solution, a discharge port 17 is provided at the bottom of the material receiving barrel 3 , and a bottom cover 18 is threadedly connected to the discharge port 17 .

[0039] To further optimize the solution, a sealing gasket 19 is provided between the upper barrel body 5 and the lower barrel body 6 to ensure the sealing of the connection.

[0040] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A slurry filtration device, characterized in that: The invention comprises a mixing barrel, wherein a driving assembly is arranged on the mixing barrel, a stirring shaft (1) is rotatably connected in the mixing barrel, the stirring shaft (1) is connected to the output end of the driving assembly, a plurality of stirring blades (2) are circumferentially fixedly connected to the side wall of the stirring shaft (1), and an angle is arranged between the stirring blades (2) and the axis of the stirring shaft (1); A material receiving barrel (3) is arranged at the bottom of the mixing barrel, a mesh screen (4) is arranged at the bottom of the mixing barrel, the mesh screen (4) is located between the stirring blade (2) and the material receiving barrel (3), and a negative pressure component is arranged on the material receiving barrel (3).

2. The slurry filtration device according to claim 1, characterized in that: The mixing barrel comprises an upper barrel body (5) and a lower barrel body (6), wherein the upper barrel body (5) is detachably connected to the lower barrel body (6), a top cover (7) is threadedly connected to one end of the upper barrel body (5) away from the lower barrel body (6), the driving assembly is arranged on the top cover (7), the lower barrel body (6) is connected to the material receiving barrel (3), the inner wall of the lower barrel body (6) is detachably connected to the mesh screen (4), and the stirring blade (2) is located in the upper barrel body (5).

3. The slurry filtration device according to claim 2, characterized in that: The inner wall of the lower barrel body (6) is fixedly connected with an annular bracket (8), and a plurality of threaded holes (9) are formed on the annular bracket (8). The mesh screen (4) is placed above the annular bracket (8), and a plurality of bolts (10) are threadedly connected to the mesh screen (4). The plurality of bolts (10) are arranged in a one-to-one correspondence with the plurality of threaded holes (9) and are threadedly connected.

4. The slurry filtration device according to claim 2, characterized in that: The driving assembly comprises a motor (11) fixedly connected to the top cover (7), and an output shaft of the motor (11) passes through the top cover (7) and is fixedly connected to the stirring shaft (1).

5. The slurry filtration device according to claim 2, characterized in that: The negative pressure component comprises a vacuum pump (12) fixedly connected to the outer wall of the material receiving barrel (3), an exhaust pipe (13) fixedly connected to the vacuum pump (12), an air hole is opened on the material receiving barrel (3), one end of the exhaust pipe (13) away from the vacuum pump (12) is fixedly connected to and communicated with the air hole, and a pressure gauge (14) is fixedly connected to the material receiving barrel (3).

6. The slurry filtration device according to claim 5, characterized in that: A feeding tube (15) is fixedly connected to the bottom of the lower barrel body (6), and a connecting tube (16) is fixedly connected to the top of the receiving barrel (3). The diameter of the connecting tube (16) is smaller than the diameter of the receiving barrel (3). The inner wall of the connecting tube (16) is threadedly connected to the outer wall of the feeding tube (15). The bottom of the feeding tube (15) extends into the receiving barrel (3), and the air hole is opened at the top of the receiving barrel (3).

7. The slurry filtration device according to claim 1, characterized in that: The bottom of the material receiving barrel (3) is provided with a material discharge port (17), and a bottom cover (18) is threadedly connected to the material discharge port (17).

8. The slurry filtration device according to claim 2, characterized in that: A sealing gasket (19) is sandwiched between the upper barrel body (5) and the lower barrel body (6).

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