Coulter mixer

Abstract

The utility model discloses a coulter mixing machine, which comprises a spherical mixer which comprises an inner ball cylinder, an outer ball cylinder arranged on the outer layer of the inner ball cylinder, and an interlayer formed between the outer side wall of the inner ball cylinder and the inner side wall of the outer ball cylinder; micropores communicated with the inner ball cylinder and the interlayer are uniformly distributed in the side wall of the inner ball cylinder; the coulter assembly comprises a coulter set arranged in the inner ball barrel and a main shaft, and one end of the main shaft penetrates through the outer ball barrel and then is inserted into the inner ball barrel to be connected with the coulter set; the grinding assembly comprises a grinding ball arranged in the interlayer and a pair of arc-shaped stirring paddles; wherein the pair of arc-shaped stirring paddles is connected with the main shaft, so that the pair of arc-shaped stirring paddles is suitable for synchronously rotating along with the movement of the main shaft in the interlayer. According to the utility model, the phenomenon that materials such as raw materials for preparing solid electrolyte are caked on the inner wall of the inner ball cylinder can be reduced; and meanwhile, the grinding balls in the interlayer can reduce the phenomenon that solid electrolyte precursors are not uniformly mixed due to pilling.

Description

Technical Field

[0001] The utility model relates to the technical field of mixing equipment, in particular to a ploughshare mixer. Background Art

[0002] In the prior art, a ploughshare mixer generally includes a cylinder body, a main shaft is rotatably arranged in the cylinder body, one end of the main shaft penetrates out of the cylinder body and is connected with a motor for driving its rotation. A ploughshare is arranged on the part of the main shaft located in the cylinder body. The ploughshare includes a handle and a blade head. The blade head is fixed at one end of the handle, and the other end of the handle is fixed on the main shaft. During operation, the motor outputs power, and thus drives the ploughshare to rotate through the main shaft to realize the mixing and stirring of materials (such as raw materials for preparing solid electrolytes in the field of secondary battery material production).

[0003] For the ploughshare mixer with the above structure, through actual research and use, it is found that it has the following defects:

[0004] First, since there is a gap between the ploughshare and the inner wall of the cylinder, when encountering materials that are easy to absorb moisture, the ploughshare will squeeze the materials against the inner wall, forming lumps and adhering to the inner wall, and it is not easy to return to the mixed materials again.

[0005] Second, since the ploughshare and the flying knife are relatively large in size, it is not easy to break up the materials agglomerated into microspherical shapes, resulting in their inability to disperse, and thus the materials are not mixed evenly enough.

[0006] Third, the operation area is mostly cylindrical, and there are material dead corners on both sides inside the cylinder, resulting in uneven mixing of materials. At the same time, when discharging materials after mixing, the materials cannot be completely discharged, leading to problems of unevenness and instability of subsequent components during continuous production.

[0007] Therefore, regarding the problems existing in the ploughshare mixer used in the current prior art, it is necessary to further optimize and improve its structure. Summary of the Utility Model

[0008] The purpose of the utility model is to provide a ploughshare mixer to solve the technical problem of optimizing its overall performance.

[0009] The ploughshare mixer of the utility model is realized as follows:

[0010] A ploughshare mixer includes:

[0011] A spherical mixer, which includes an inner spherical cylinder, an outer spherical cylinder arranged on the outer layer of the inner spherical cylinder, and a sandwich formed between the outer side wall of the inner spherical cylinder and the inner side wall of the outer spherical cylinder; micro holes communicating the inner spherical cylinder and the sandwich are uniformly distributed on the side wall of the inner spherical cylinder;

[0012] A plow blade assembly, which includes a plow blade group disposed in an inner spherical cylinder, and a main shaft with one end passing through an outer spherical cylinder and inserted into the inner spherical cylinder to be connected with the plow blade group;

[0013] A grinding assembly, which includes grinding balls and a pair of arc-shaped stirring paddles disposed in the interlayer; wherein the pair of arc-shaped stirring paddles are connected to the main shaft so that the pair of arc-shaped stirring paddles are adapted to rotate synchronously in the interlayer along with the movement of the main shaft.

[0014] In an optional implementation case of the present utility model, the outer diameter of the grinding balls is greater than the aperture of the micropores.

[0015] In an optional implementation case of the present utility model, reinforcing ribs are further provided between the outer side wall of the inner spherical cylinder and the inner side wall of the outer spherical cylinder.

[0016] In an optional implementation case of the present utility model, the plow blade group includes three plow blades evenly distributed around the main shaft.

[0017] In an optional implementation case of the present utility model, exhaust holes communicating with the interlayer are provided on the side wall of the outer spherical cylinder.

[0018] In an optional implementation case of the present utility model, the main shaft is connected to a motor for driving the operation of the main shaft.

[0019] In an optional implementation case of the present utility model, the pair of arc-shaped stirring paddles are arranged in a symmetric structure.

[0020] In an optional implementation case of the present utility model, the plow blade mixer further includes a feed pipe and a discharge pipe passing through the outer spherical cylinder and the inner spherical cylinder.

[0021] In an optional implementation case of the present utility model, both the feed pipe and the discharge pipe are configured with covers.

[0022] In an optional implementation case of the present utility model, partitions adapted to be opened and communicating with the interlayer are respectively provided on the side walls of the feed pipe and the discharge pipe located in the interlayer.

[0023] Adopting the above technical solution, the utility model has the following beneficial effects: For the plow blade mixer of the utility model, the spherical mixer adopted includes an inner spherical cylinder and an outer spherical cylinder used in cooperation, and micropores communicating the inner spherical cylinder and the interlayer are uniformly distributed on the side wall of the inner spherical cylinder. Under this structure, materials such as raw materials for preparing solid electrolytes can flow between the inner spherical cylinder and the outer spherical cylinder through the micropores, reducing the caking of materials on the inner side wall of the inner spherical cylinder. Even if some materials cake and form on the inner side wall of the inner spherical cylinder, the grinding balls in the interlayer rotate with the arc-shaped stirring paddle, and the grinding balls impact the side wall of the inner spherical cylinder and the micropores of the inner spherical cylinder, causing the side wall of the inner spherical cylinder to vibrate. After the caked materials are shaken loose, they can re-enter the mixed materials or enter the interlayer through the micropores. Moreover, the use of a spherical mixer enables materials in all directions to fall back from above, avoiding dead corners and resulting in uneven material mixing. At the same time, when discharging, it can be completely emptied, reducing the impact of material retention on continuous production. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of the plow blade mixer according to the embodiment of the present application from the first perspective;

[0025] Figure 2 is a schematic structural diagram of the plow blade mixer according to the embodiment of the present application from the second perspective;

[0026] Figure 3 is a schematic structural diagram of the main shaft, arc-shaped stirring paddle and plow blade of the plow blade mixer according to the embodiment of the present application.

[0027] In the figure: frame 1, motor 2, main shaft 3, plow blade 4, arc-shaped stirring paddle 5, inner spherical cylinder 6, outer spherical cylinder 7, grinding ball 8, feed pipe 9, feed inlet 91, discharge pipe 10, discharge outlet 101, exhaust hole 11, partition plate 12, cover plate 13, reinforcing rib 14. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to make the content of the present utility model easier to be clearly understood, the following further detailed description of the present utility model is provided according to specific embodiments in conjunction with the accompanying drawings.

[0029] Embodiment 1:

[0030] Please refer to Figures 1 to 3 as shown. This embodiment provides a plow blade mixer, which can be applicable to the preparation of solid electrolytes. The plow blade mixer includes: a spherical mixer, and a plow blade assembly and a grinding assembly used in cooperation with the spherical mixer. The spherical mixer is fixed on the frame 1.

[0031] Specifically, first is the spherical mixer, which includes an inner spherical cylinder 6, an outer spherical cylinder provided on the outer layer of the inner spherical cylinder 6, and a sandwich layer formed between the outer side wall of the inner spherical cylinder 6 and the inner side wall of the outer spherical cylinder 7. Here, both the inner spherical cylinder 6 and the outer spherical cylinder 7 are spherical bodies, and the difference in their spherical diameters is not too large, so that the space of the sandwich layer is not too large. Considering that a reliable fit can be formed between the inner spherical cylinder 6 and the outer spherical cylinder 7, reinforcing ribs 14 are also provided between the outer side wall of the inner spherical cylinder 6 and the inner side wall of the outer spherical cylinder 7.

[0032] Secondly, micropores communicating the inner spherical cylinder 6 and the sandwich layer are evenly distributed on the side wall of the inner spherical cylinder 6; the shape of the micropores is not absolutely limited in this embodiment. The design of the micropores is mainly to enable the material to flow between the inner spherical cylinder 6 and the outer spherical cylinder 7. In addition, an exhaust hole 11 communicating with the sandwich layer is provided on the side wall of the outer spherical cylinder 7.

[0033] Furthermore, the plow blade assembly includes a plow blade group provided in the inner spherical cylinder 6, and a main shaft 3 whose one end passes through the outer spherical cylinder 7 and then inserts into the inner spherical cylinder 6 to be connected with the plow blade group; the main shaft 3 is connected with a motor 2 for driving the main shaft 3 to operate; the motor 2 is arranged on the outer side of the outer spherical cylinder 7. In a specific optional implementation case, the plow blade group includes three plow blades 4 evenly distributed around the main shaft 3. Here, the three plow blades 4 can be in the same plane or in different planes, which is not absolutely limited in this embodiment. The specific structure of the plow blade 4 itself can optionally adopt any mature means in the prior art, that is, the structure of the specific plow blade 4 is not improved in this embodiment, so its specific structure is not limited either.

[0034] In addition, the grinding assembly includes grinding balls 8 and a pair of arc-shaped stirring paddles 5 provided in the sandwich layer; one pair of arc-shaped stirring paddles 5 is connected with the main shaft 3 so that the pair of arc-shaped stirring paddles 5 is adapted to rotate synchronously in the sandwich layer along with the movement of the main shaft 3. It should be noted that the outer diameter of the grinding balls 8 here is larger than the aperture of the micropores. In a selectable implementation case here, the pair of arc-shaped stirring paddles 5 is arranged in a symmetric structure. Here, preferably, the filling rate of the grinding balls 8 in the sandwich layer is 30% - 50%.

[0035] Based on the above structure, it is also necessary to explain that the plow blade mixer adopted in this embodiment further includes a feed pipe 9 and a discharge pipe 10 passing through the outer spherical cylinder 7 and the inner spherical cylinder 6. Here, preferably, the feed pipe 9 is arranged at the top of the spherical mixer, and the discharge pipe 10 is arranged at the bottom of the spherical mixer. The feed pipe 9 and the discharge pipe 10 are both configured with covers 13. When feeding and discharging are not required, the covers 13 are used to block the material ports of the feed pipe 9 and the discharge pipe 10, and the covers 13 are preferably formed at the interfaces where the discharge pipe 10 and the feed pipe 9 are respectively lapped with the outer spherical cylinder 7.

[0036] In summary, for the plowshare mixer of this embodiment, the spherical mixer used includes an inner spherical cylinder 6 and an outer spherical cylinder 7 that are used in cooperation, and micropores communicating the inner spherical cylinder 6 and the interlayer are uniformly distributed on the side wall of the inner spherical cylinder 6. Under this structure, materials such as raw materials for preparing solid electrolytes can flow between the inner spherical cylinder 6 and the outer spherical cylinder 7 through the micropores, reducing the caking of materials on the inner side wall of the inner spherical cylinder 6. Even if some materials cake and form on the inner side wall of the inner spherical cylinder 6, the grinding balls 8 in the interlayer rotate with the arc-shaped stirring paddle 5, and the grinding balls 8 impact the side wall of the inner spherical cylinder 6 and the micropores of the inner spherical cylinder 6, causing the side wall of the inner spherical cylinder 6 to vibrate. After the caked materials are shaken loose, they can re-enter the mixed materials or enter the interlayer through the micropores. Moreover, the use of a spherical mixer enables materials in all directions to fall back from above, avoiding dead corners and resulting in uneven mixing of materials. At the same time, when discharging, it can also be completely emptied, reducing the impact of material retention on continuous production.

[0037] Embodiment 2:

[0038] Please refer to Figures 1 to 3 As shown, on the basis of the plowshare mixer of Embodiment 1, the plowshare mixer provided in this embodiment takes into account simplifying the overall structure while meeting the requirements for the feeding and discharging and replacement of the grinding balls 8 in the interlayer. The following design is also made in this embodiment:

[0039] On the side walls of the feeding pipe 9 and the discharging pipe 10 located in the interlayer, a partition plate 12 suitable for opening and communicating with the interlayer is respectively provided. The partition plate 12 can be a microporous plate, and the inner diameter of the holes designed on the microporous plate is smaller than the outer diameter of the grinding balls 8. Based on this design, when it is necessary to put the grinding balls 8 into the interlayer, by opening the partition plate 12 on the side wall of the feeding pipe 9, the grinding balls 8 can be directly put into the interlayer through the feeding port 91 and the side wall of the feeding pipe 9. When it is necessary to replace the grinding balls 8 in the interlayer, the grinding balls 8 can also be discharged by using the side wall of the discharging pipe 10 and the discharging port 101. Under this design, it is convenient to replace the grinding balls 8 appropriately according to the particle size of the materials to be ground.

[0040] On the basis of the above structure, it is also necessary to supplement that considering the convenient disassembly and assembly between the partition plate 12 and the side walls of the feeding pipe 9 and the discharging pipe 10, in this embodiment, the partition plate 12 and the side walls of the feeding pipe 9 and the discharging pipe 10 are designed to be in an insertion and matching manner. Specifically, slots can be formed on the inner pipe walls of the feeding pipe 9 and the discharging pipe 10, and the slots directly extend to the feeding port 91 and the discharging port 101, so that the partition plate 12 can directly enter and exit the feeding pipe 9 through the feeding port 91. Similarly, the partition plate 12 can directly enter and exit the discharging pipe 10 through the discharging port 101.

[0041] In this embodiment, the method of directly designing the partition plate 12 on the side wall of the discharge pipe 10 can also facilitate the discharge of the materials remaining in the interlayer into the discharge pipe 10 through the holes of the partition plate 12.

[0042] For the plowshare mixer of this embodiment, its specific usage steps are as follows:

[0043] Step S1: Filling of the grinding balls 8. Open the cover plate 13 configured on the feed pipe 9, and keep the cover plate 13 of the discharge pipe 10 in a state of blocking the discharge port 101. Then disassemble the partition plate 12 on the side wall of the feed pipe 9, and add the grinding balls 8 into the interlayer formed by the inner cylinder 6 and the outer cylinder 7 through a feeding tool. After the filling of the grinding balls 8 is completed, assemble and fix the partition plate 12 on the side wall of the feed pipe 9 again.

[0044] Step S2: Feeding. Put various materials in the formula amount directly into the inner cylinder 6 through the feed port 91 and the feed pipe 9. After the feeding is completed, close the cover plate 13 configured on the feed pipe 9.

[0045] Step S3: Mixing. Start the motor 2, and the plowshare 4 and the arc-shaped stirring paddle 5 on the main shaft 3 start to rotate synchronously. The various materials in the inner cylinder 6 start to mix with the rotation of the plowshare 4. At the same time, part of the materials enter the interlayer through the micropores of the inner cylinder 6; the arc-shaped stirring paddle 5 stirs the grinding balls 8 to disperse the agglomerated materials entering the interlayer, and part of them re-enter the inner cylinder 6 through the micropores and mix with the plowshare 4 again. The gas generated during the mixing process is discharged through the exhaust hole 11.

[0046] Step S4: Discharging. After the materials are mixed, turn off the motor 2, open the cover plate 13 of the discharge pipe 10, and the mixed materials are discharged from the discharge port 101. Then start the motor 2 again, rotate the plowshare 4 and the arc-shaped stirring paddle 5 to discharge all the materials that are not easy to fall automatically. Repeating steps S2 - S4 can carry out continuous production operations.

[0047] The above specific embodiments have further elaborated in detail the purpose, technical solution and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

[0048] In the description of the present invention, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present invention.

[0049] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0050] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0051] In addition, terms such as "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0052] In the present utility model, unless otherwise clearly specified and defined, the first feature being above or below the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being above, over and on the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being below, under and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

Claims

1. A plowshare mixer, characterized in that: include: A spherical mixer comprises an inner spherical cylinder, an outer spherical cylinder arranged on the outer layer of the inner spherical cylinder, and an interlayer formed between the outer side wall of the inner spherical cylinder and the inner side wall of the outer spherical cylinder; micropores connecting the inner spherical cylinder and the interlayer are uniformly distributed on the side wall of the inner spherical cylinder; A plow assembly includes a plow group arranged in the inner ball cylinder, and a main shaft connected to the plow group, one end of which passes through the outer ball cylinder and is inserted into the inner ball cylinder; The grinding assembly comprises grinding balls and a pair of arc-shaped stirring paddles arranged in an interlayer; wherein the pair of arc-shaped stirring paddles are connected to a main shaft so that the pair of arc-shaped stirring paddles are suitable for synchronously rotating in the interlayer along with the movement of the main shaft.

2. A plowshare mixer according to claim 1, characterized in that: The outer diameter of the grinding ball is larger than the aperture of the micropore.

3. A plowshare mixer according to claim 1 or 2, characterized in that: A reinforcing rib is also provided between the outer side wall of the inner ball cylinder and the inner side wall of the outer ball cylinder.

4. A plowshare mixer according to claim 1, characterized in that: The plow group includes three plows evenly distributed around the main axis.

5. A plowshare mixer according to claim 1, characterized in that: The side wall of the outer ball cylinder is provided with an exhaust hole communicating with the interlayer.

6. A plowshare mixer according to claim 1, characterized in that: The main shaft is connected with a motor for driving the main shaft to operate.

7. A plowshare mixer according to claim 1, characterized in that: The pair of arc-shaped stirring paddles are symmetrically arranged.

8. A plowshare mixer according to claim 1, characterized in that: The plowshare mixer also includes a feed pipe and a discharge pipe which penetrate through the outer ball barrel and the inner ball barrel.

9. A plowshare mixer according to claim 8, characterized in that: The feed pipe and the discharge pipe are both provided with cover plates.

10. A plowshare mixer according to claim 8 or 9, characterized in that: The side walls of the feed pipe and the discharge pipe located in the interlayer are respectively provided with a partition plate suitable for opening and connected to the interlayer at the back.

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