Slurry mixing device for solid oxide fuel cell

Abstract

The utility model provides a solid oxide fuel cell slurry mixing device, which belongs to the technical field of fuel cells and comprises a main cylinder, a mixing mechanism is arranged in an inner cavity of a main cylinder body, the mixing mechanism comprises a surrounding column, a six-claw connecting ring, a mixing rotating shaft and a slotted chassis, a main shaft is arranged on an inner ring of the surrounding column, and the main shaft is connected with the six-claw connecting ring. A second star-shaped plate is arranged at the bottom of the surrounding column, the six-claw connecting ring is fixedly connected to the bottom of the second star-shaped plate, a slotting ring is arranged at the bottom of the six-claw connecting ring, and the mixing rotating shaft is fixedly connected to the bottom of the main shaft. Through the arrangement of the mixing mechanism, the flow direction of the battery slurry liquid not only has rotary motion in the horizontal direction, but also has rotary motion in the vertical direction, the comprehensive performance is that when the liquid of the battery slurry is mixed, the liquid has a spirally upward mixing and stirring effect, and the rotary stirring in the horizontal direction mainly enables the slurry to generate flow and shear force in a transverse plane; and different components can be promoted to be fully diffused and mixed in the horizontal direction.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel cells, in particular to a solid oxide fuel cell slurry mixing device. Background Art

[0002] In the preparation and application of solid oxide fuel cell slurries, slurries are primarily used to prepare key components such as electrolytes, anodes, and cathodes. Slurries are typically composed of oxide powders, solvents, binders, and additives. When preparing the slurry, factors such as the slurry's fluidity, stability, thixotropy, water content, and bubble content must be considered. A good slurry should have appropriate viscosity to facilitate flow to various parts of the mold. At the same time, the barren powder in the slurry should be well suspended to avoid sedimentation and flocculation. Furthermore, the slurry should have appropriate thixotropy to achieve a good green body structure during the molding process.

[0003] During the specific stirring process, the battery slurry usually contains particles of various sizes and densities, and there is a slurry stratification phenomenon caused by gravity. The battery slurry usually contains particles of various sizes and densities. Utility Model Content

[0004] In order to make up for the above deficiencies, the present invention provides a solid oxide fuel cell slurry mixing device that overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a solid oxide fuel cell slurry mixing device, comprising a main cylinder, wherein the main cylinder body inner cavity is provided with a mixing mechanism;

[0007] The mixing mechanism comprises:

[0008] A surrounding column, wherein the inner ring of the surrounding column is provided with a main shaft, and the bottom of the surrounding column is provided with a second star-shaped plate;

[0009] A six-claw connecting ring, the six-claw connecting ring is fixedly connected to the bottom of the second star-shaped plate, and the bottom of the six-claw connecting ring is provided with a slotted ring;

[0010] A mixing shaft, the mixing shaft being fixedly connected to the bottom of the main shaft, and the mixing shaft being fixedly connected around a solid inclined plate located inside the slotted ring;

[0011] The top of the slotted chassis is fixedly connected to the bottom of the slotted ring, and the body of the slotted chassis is provided with a third straight slot in an annular array.

[0012] In one embodiment of the present invention, a first straight groove is formed on the plate body of the second star-shaped plate, and a second straight groove is formed on the ring body of the slotted ring.

[0013] In one embodiment of the present invention, a sealing bearing sleeve is fixedly connected to the top of the surround column, the bottom of the sealing bearing sleeve is fixedly connected to the column body of the surround column, the outer ring of the sealing bearing sleeve is fixedly plugged with a first star-shaped plate, and the end of the first star-shaped plate is fixedly connected to the interior of the main tube.

[0014] In one embodiment of the present invention, the bottom end of the main shaft is welded to the inner ring of the sealed bearing sleeve, and the sealed bearing sleeve is composed of a bearing outer sleeve connecting ring, and the connecting ring of the outer ring of the sealed bearing sleeve is plugged into the first star-shaped plate.

[0015] In one embodiment of the present invention, a scraping mechanism located inside the main cylinder is provided on the shaft body of the main shaft, and the scraping mechanism includes a connecting disk, which is fixedly connected to the shaft body of the main shaft, and the outer ring of the connecting disk is provided with a transverse scraping plate, and the outer ring side of the transverse scraping plate is fixedly connected to an oblique scraping plate.

[0016] In one embodiment of the present invention, a fourth straight groove in a linear array is provided on the transverse scraping plate, and a fifth straight groove in a linear array is provided on the oblique scraping plate.

[0017] In one embodiment of the present invention, a cover plate is clamped on the top edge of the main tube, the main shaft is movably inserted at the center of the cover plate, a quick release mechanism is provided on the top of the cover plate, and the quick release mechanism includes a key shaft, the key shaft and the top end of the main shaft are connected by a movable insertion shaft, and one side of the key shaft is provided with a mounting bracket fixedly connected to the top of the cover plate.

[0018] In one embodiment of the present utility model, a servo motor is provided on the top of the mounting frame, the housing of the servo motor is connected to the upper surface of the mounting frame, the rotating shaft of the servo motor is provided with a driving gear through a connecting shaft, the top of the key shaft is provided with a connecting frustum, the top of the connecting frustum is provided with a passive gear, and the passive gear and the active gear are meshed and connected.

[0019] The utility model provides a solid oxide fuel cell slurry mixing device, the beneficial effects of which include:

[0020] 1. By setting up a mixing mechanism, the battery slurry liquid flow direction has not only horizontal rotation movement, but also vertical rotation movement. The overall performance is that the battery slurry liquid has a spiral upward mixing and stirring effect when mixing. The horizontal rotation stirring mainly causes the slurry to generate flow and shear force in the transverse plane, which can promote the full diffusion and mixing of different components in the horizontal direction. After the well-mixed slurry is applied to the electrode current collector, it can form a more uniform electrode coating. The vertical stirring helps the binder in the slurry to play a better role in the vertical direction, enhancing the bonding force between the active material and the current collector.

[0021] 2. By setting up a scraping mechanism, the solid powder on the inner wall of the container can be continuously scraped and dropped onto the liquid when the battery slurry is added, and at the same time, the accumulation of solid powder or particles on the top of the liquid surface can be prevented. Without a scraping mechanism, the solid powder adhering to the inner wall may be wasted in the subsequent production process or cause environmental pollution when cleaning the container. Through scraping, these powders are recovered to the maximum extent, the utilization rate of raw materials is improved, and the production cost is reduced. The scraping mechanism prevents the accumulation of solid powder or particles on the top of the liquid surface, so that the solid components can be more evenly dispersed in the liquid. During the stirring process, this uniform distribution helps to improve mixing efficiency and reduce mixing time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a structural diagram provided by an embodiment of the present utility model;

[0024] Figure 2 A schematic structural diagram of a scraping mechanism provided in an embodiment of the present utility model;

[0025] Figure 3 A schematic diagram of the structure of a mixing mechanism provided in an embodiment of the present utility model;

[0026] Figure 4 This is a schematic diagram of the quick-release mechanism structure provided by an embodiment of the utility model.

[0027] In the figure: 1. main cylinder; 101. cover plate; 102. main shaft; 103. sealed bearing sleeve; 1031. first star-shaped plate; 2. mixing mechanism; 201. surrounding column; 202. second star-shaped plate; 2021. first straight groove; 203. six-claw connecting ring; 204. slotted ring; 2041. second straight groove; 205. mixing shaft; 2051. solid inclined plate; 206. slotted chassis; 2061. third straight groove; 3. scraping mechanism; 301. connecting plate; 302. horizontal scraping plate; 3021. fourth straight groove; 303. oblique scraping plate; 3031. fifth straight groove; 4. quick release mechanism; 401. key shaft; 402. connecting frustum; 403. passive gear; 404. mounting frame; 405. servo motor; 406. driving gear. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Example

[0030] Reference Figures 1-4The present technical solution provides a solid oxide fuel cell slurry mixing device, which includes a main barrel 1, a mixing mechanism 2 is provided in the inner cavity of the main barrel 1, and the mixing mechanism 2 includes: a surrounding column 201, a six-claw connecting ring 203, a mixing shaft 205 and a slotted bottom plate 206. The inner ring of the surrounding column 201 is provided with a main shaft 102, and the bottom of the surrounding column 201 is provided with a second star-shaped plate 202. The six-claw connecting ring 203 is fixedly connected to the bottom of the second star-shaped plate 202, and the bottom of the six-claw connecting ring 203 is provided with a slotted ring 204. The mixing shaft 205 is fixedly connected to the bottom of the main shaft 102, and the four sides of the mixing shaft 205 are fixedly connected to the solid The top of the center inclined plate 2051, the slotted chassis 206, and the bottom of the slotted ring 204 are fixedly connected. The main body of the slotted chassis 206 is provided with a third straight groove 2061 in an annular array. By setting up the mixing mechanism 2, the battery slurry liquid flow direction has not only horizontal rotational movement, but also vertical rotational movement. The overall performance is that the battery slurry liquid has a spiral upward mixing and stirring effect when mixing. The horizontal rotation stirring mainly causes the slurry to generate flow and shear force in the transverse plane, which can promote the full diffusion and mixing of different components in the horizontal direction. After the well-mixed slurry is applied to the electrode current collector, it can form a more uniform electrode coating. The vertical stirring helps the binder in the slurry to better play its role in the vertical direction, enhancing the bonding force between the active material and the current collector.

[0031] Reference Figures 1-4 Based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that a first straight groove 2021 is opened on the plate body of the second star-shaped plate 202, and a second straight groove 2041 is opened on the ring body of the slotted ring 204 in an oblique direction.

[0032] Reference Figures 1-4 Based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes that a sealed bearing sleeve 103 is fixedly connected to the top of the surround column 201, the bottom of the sealed bearing sleeve 103 is fixedly connected to the column body of the surround column 201, the outer ring of the sealed bearing sleeve 103 is fixedly plugged with a first star-shaped plate 1031, and the end of the first star-shaped plate 1031 is fixedly connected to the interior of the main tube 1.

[0033] Reference Figures 1-4 Based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes welding the bottom end of the main shaft 102 and the inner ring of the sealed bearing sleeve 103. The sealed bearing sleeve 103 is composed of a bearing outer sleeve connecting ring, and the connecting ring of the outer ring of the sealed bearing sleeve 103 is plugged into the first star-shaped plate 1031.

[0034] Reference Figures 1-4Based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that a scraping mechanism 3 located inside the main cylinder 1 is provided on the shaft body of the main shaft 102, and the scraping mechanism 3 includes a connecting disk 301, and the connecting disk 301 is fixedly connected to the shaft body of the main shaft 102. The outer ring of the connecting disk 301 is provided with a transverse scraping plate 302, and the outer ring side of the transverse scraping plate 302 is fixedly connected to an oblique scraping plate 303. By setting the scraping mechanism 3, the solid powder on the inner wall of the container can be continuously scraped and dropped onto the liquid when the battery slurry is fed. At the same time, it can prevent the accumulation of solid powder or particles on the top of the liquid surface. When there is no scraping mechanism 3, the solid powder adhering to the inner wall may be wasted in the subsequent production process, or cause environmental pollution when cleaning the container. Through scraping, these powders are recovered to the maximum extent, the utilization rate of raw materials is improved, and the production cost is reduced. The scraping mechanism 3 prevents the accumulation of solid powder or particles on the top of the liquid surface, so that the solid components can be more evenly dispersed in the liquid. During the stirring process, this uniform distribution helps to improve the mixing efficiency and reduce the mixing time.

[0035] Reference Figures 1-4 Based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that a fourth straight groove 3021 in a linear array is provided on the horizontal scraping plate 302, and a fifth straight groove 3031 in a linear array is provided on the oblique scraping plate 303. During the rotation of the scraping mechanism 3, the oblique scraping plate 303 can scrape the solid particles or powder substances on the liquid surface, and can scrape off the adhesive substances attached to the inner wall of the main cylinder 1 and let them fall on the liquid surface, and the fifth straight groove 3031 of the horizontal scraping plate 302 can allow some solid powder to pass through, and will not allow the solid to re-accumulate on the liquid surface.

[0036] Reference Figures 1-4 Based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that a cover plate 101 is clamped on the top edge of the main tube 1, and the main shaft 102 is movably inserted at the center of the cover plate 101. A quick release mechanism 4 is provided on the top of the cover plate 101. The quick release mechanism 4 includes a key shaft 401. The key shaft 401 and the top end of the main shaft 102 are connected by a movable insertion shaft. One side of the key shaft 401 is provided with a mounting bracket 404 fixedly connected to the top of the cover plate 101. The key shaft 401 can be removed, so that the cover plate 101 can be removed together with the quick release mechanism 4 without any obstruction from components.

[0037] Reference Figures 1-4Based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that a servo motor 405 is provided on the top of the mounting frame 404, the housing of the servo motor 405 is connected to the upper surface of the mounting frame 404, the rotating shaft of the servo motor 405 is provided with a driving gear 406 through a connecting shaft, the top of the key shaft 401 is provided with a connecting frustum 402, the top of the connecting frustum 402 is provided with a passive gear 403, and the passive gear 403 is meshed with the active gear.

[0038] Specifically, the working process or working principle of the solid oxide fuel cell slurry mixing device is as follows: when in use, the servo motor 405 is driven, and under the transmission action of the meshing relationship between the active gear and the passive gear 403, the key shaft 401 is linked to the main shaft 102 to rotate. At this time, the main shaft 102 drives the transverse scraping plate 302 and the oblique scraping plate 303 to rotate. During the rotation process, since the main shaft 102 and the sealed bearing sleeve 103 are in a relative relationship with the inner and outer rings of the bearing, the main shaft 102 can rotate freely and will not fall off. During the rotation of the scraping mechanism 3, the oblique scraping plate 303 can scrape the solid particles or powder substances on the liquid surface, and can scrape off the adhesive substances attached to the inner wall of the main cylinder 1 and let them fall on the liquid surface, and the fifth straight groove 3031 of the transverse scraping plate 302 can make some solid The powder passes through without allowing the solid to re-accumulate on the liquid surface. At this time, the flow action inside the liquid is that the obliquely arranged solid inclined plate 2051 will allow the liquid on the top of the slotted ring 204 to enter the slotted ring 204 through the six-claw connecting ring 203. Part of this liquid is discharged outward from the second straight groove 2041 of the slotted ring 204, and the other part flows out from the bottom of the third straight groove 2061 of the slotted bottom plate 206. Since the water flow at the inner circle of the slotted ring 204 has a downward flow, the water flow at the outer circle of the slotted ring 204 flows upward. This process will also drive the liquid flowing out from the lower part of the slotted bottom plate 206 to flow upward. In summary, the liquid flow direction in the main barrel 1 not only has horizontal rotation movement, but also vertical rotation movement. The comprehensive performance is that the liquid of the battery slurry has a spiral upward mixing and stirring effect when mixing.

[0039] It should be noted that the servo motor 405 is a device or equipment existing in the prior art, or a device or equipment that can be implemented in the prior art. Its power supply, specific composition and principles are clear to those skilled in the art, so they are not described in detail.

Claims

1. A solid oxide fuel cell slurry mixing device, comprising a main barrel (1), characterized in that: The main body cavity of the main cylinder (1) is provided with a mixing mechanism (2); The mixing mechanism (2) comprises: A surrounding column (201), wherein the inner ring of the surrounding column (201) is provided with a main shaft (102), and the bottom of the surrounding column (201) is provided with a second star-shaped plate (202); A six-claw connecting ring (203), the six-claw connecting ring (203) is fixedly connected to the bottom of the second star-shaped plate (202), and a slotted ring (204) is provided at the bottom of the six-claw connecting ring (203); A mixing shaft (205), the mixing shaft (205) being fixedly connected to the bottom of the main shaft (102), and a solid inclined plate (2051) located inside the slotted ring (204) being fixedly connected around the mixing shaft (205); A slotted chassis (206) is provided, wherein the top of the slotted chassis (206) is fixedly connected to the bottom of the slotted ring (204), and the body of the slotted chassis (206) is provided with third straight slots (2061) in an annular array.

2. A solid oxide fuel cell slurry mixing device according to claim 1, characterized in that: A first straight groove (2021) is provided on the plate body of the second star-shaped plate (202), and a second straight groove (2041) arranged obliquely is provided on the ring body of the slotted ring (204).

3. A solid oxide fuel cell slurry mixing device according to claim 1, characterized in that: The top of the surrounding column (201) is fixedly connected to a sealed bearing sleeve (103), the bottom of the sealed bearing sleeve (103) is fixedly connected to the column of the surrounding column (201), the outer ring of the sealed bearing sleeve (103) is fixedly plugged with a first star-shaped plate (1031), and the end of the first star-shaped plate (1031) is fixedly connected to the interior of the main cylinder (1).

4. A solid oxide fuel cell slurry mixing device according to claim 1, characterized in that: The bottom end of the main shaft (102) is welded to the inner ring of the sealed bearing sleeve (103); the sealed bearing sleeve (103) is composed of a bearing outer sleeve connecting ring; the connecting ring of the outer ring of the sealed bearing sleeve (103) is plugged into the first star-shaped plate (1031).

5. A solid oxide fuel cell slurry mixing device according to claim 4, characterized in that: A scraping mechanism (3) located inside the main cylinder (1) is provided on the shaft body of the main shaft (102), and the scraping mechanism (3) comprises a connecting disk (301), the connecting disk (301) is fixedly connected to the shaft body of the main shaft (102), the outer ring of the connecting disk (301) is provided with a transverse scraping plate (302), and the outer ring side of the transverse scraping plate (302) is fixedly connected to an oblique scraping plate (303).

6. A solid oxide fuel cell slurry mixing device according to claim 5, characterized in that: The transverse scraping plate (302) is provided with a fourth straight groove (3021) in a linear array, and the oblique scraping plate (303) is provided with a fifth straight groove (3031) in a linear array.

7. A solid oxide fuel cell slurry mixing device according to claim 1, characterized in that: The top edge of the main cylinder (1) is clamped with a cover plate (101), the main shaft (102) is movably plugged into the center of the cover plate (101), and a quick-release mechanism (4) is provided on the top of the cover plate (101). The quick-release mechanism (4) includes a key shaft (401), and the top of the key shaft (401) and the main shaft (102) are connected via a movable plug shaft. One side of the key shaft (401) is provided with a mounting bracket (404) fixedly connected to the top of the cover plate (101).

8. A solid oxide fuel cell slurry mixing device according to claim 7, characterized in that: A servo motor (405) is provided on the top of the placement frame (404), a housing of the servo motor (405) is connected to the upper surface of the placement frame (404), a rotating shaft of the servo motor (405) is provided with a driving gear (406) via a connecting shaft, a connecting truncated cone (402) is provided on the top of the key shaft (401), a driven gear (403) is provided on the top of the connecting truncated cone (402), and the driven gear (403) is meshedly connected with the driving gear.

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