Stirring equipment

Abstract

According to the stirring equipment, the circulation speed of electrolyte slurry disturbed by rotary cutting blades is high, slurry dispersion is facilitated, and slurry kneading is not facilitated. Therefore, the first jet flow ring piece is arranged close to the central cone, the first jet flow ring piece represses the slurry, the flow direction of low-speed slurry in electrolyte slurry circulation is changed, the low-speed slurry enters the bottom of the rotary cutting paddle, and then kneading is achieved. Meanwhile, the medium-high-speed slurry penetrates through the first jet flow hole, the kinetic energy of the medium-high-speed slurry is integrally reduced, the medium-high-speed slurry collides with the stirring rod, and speed reduction is achieved. After being preliminarily kneaded with the slurry of the first jet flow ring piece and the second jet flow ring piece, the medium-high speed slurry after speed reduction enters the bottom of the rotary cutting paddle, and then kneading is achieved. Therefore, the kneading capacity of the stirring equipment is greatly improved, and the defect that the kneading capacity of a traditional high-speed homogenizing system is weak is overcome.

Description

Technical Field

[0001] The present application relates to the technical field of slurry stirring equipment, and in particular to a stirring equipment. Background Art

[0002] With the development of battery technology, the technical research and development direction of batteries has gradually shifted from the research and development of traditional muddy lead-acid batteries to the research and development of solid or semi-solid lithium-based batteries. In the battery production process, mixing, specifically stirring, is an indispensable process. The stirring process needs to ensure that the viscosity of the solid or semi-solid lithium-based electrolyte meets the requirements.

[0003] Traditionally, in the production process of lithium-based electrolytes, a stirring device is often used to complete the viscosity molding process of the lithium-based electrolyte. Limited by the requirement of higher production capacity, the size of the stirring device is often large. However, such a large-sized stirring device often has a strong dispersion ability, but the kneading ability is limited by the large size of the stirring device and is relatively weak. This will result in poor stirring effect or long stirring time of the stirring device. For this reason, it is necessary to propose a stirring device to address the defect of weak kneading ability of the traditional stirring device. Summary of the invention

[0004] Based on this, it is necessary to propose a stirring device to address the defect of weak kneading ability of traditional stirring devices.

[0005] The present application provides a stirring device, comprising:

[0006] Center cone;

[0007] The rotary cutting blade comprises a plurality of rotary cutting blades, each of which is fixedly connected to the bottom end of the central cone, and the plurality of rotary cutting blades are arranged at intervals and evenly distributed around the central axis of the central cone;

[0008] A second jet ring sheet, wherein one end of each peeling blade close to the central cone is fixedly connected to the central cone, and one end of each peeling blade away from the central cone is fixedly connected to the inner circumference of the second jet ring sheet; the second jet ring sheet is provided with a plurality of second jet holes;

[0009] a first jet ring sheet, wherein the first jet ring sheet is arranged between the central cone and the second jet ring sheet, the outer diameter of the first jet ring sheet is smaller than the inner diameter of the second jet ring sheet, the first jet ring sheet is fixedly connected to each rotary cutting blade, and each rotary cutting blade passes through the middle of the first jet ring sheet; the first jet ring sheet is provided with a plurality of first jet holes;

[0010] A plurality of stirring rods are provided, each of the rotary cutting blades is fixedly connected with a stirring rod, and the bottom of the stirring rod is fixedly connected to the top surface of the rotary cutting blade.

[0011] Furthermore, the working surface of the rotary cutting blade is parallel to the bottom surface of the central cone, and the vertical distance between the plane where the top edge of the first jet ring piece is located and the working surface is smaller than the vertical distance between the plane where the top edge of the second jet ring piece is located and the working surface.

[0012] Furthermore, the first jet hole is a circular hole, and the second jet hole is a quadrilateral hole.

[0013] Furthermore, the first jet ring piece includes a plurality of jet blocks;

[0014] The structure of each jet block is the same;

[0015] Each jet block includes a plurality of first jet holes of the same number;

[0016] The distances between two adjacent first jet holes in the same jet block are equal;

[0017] The hole axes of all the first jet holes in the same jet block are in the same plane; this plane is defined as the jet surface.

[0018] Furthermore, the angle between the jet surface and the working surface is within an angle range greater than 0 degrees and less than or equal to 90 degrees;

[0019] The distance between two adjacent jet surfaces is equal.

[0020] Furthermore, the shape of the second jet hole projected on the tangent plane of the second jet ring piece is a parallelogram; the projection of the second jet hole on the tangent plane of the second jet ring piece is defined as the projection of the shape of the second jet hole;

[0021] A first central axis of the outer shape projection of each second jet hole is parallel to the working surface;

[0022] The included angle between the second central axis of the outer shape projection of each second jet hole and the working surface is within an angle range greater than 0 degree and less than or equal to 90 degrees.

[0023] Furthermore, each rotary cutting blade has the same structure;

[0024] The rotary cutting blade comprises a blade back and a blade edge;

[0025] The paddle back is fixedly connected to the paddle blade;

[0026] The paddle back is fixedly connected to the stirring rod.

[0027] Furthermore, one end of the stirring rod connected to the rotary cutting blade passes through the blade back;

[0028] The end surface of one end of the stirring rod is configured as a smooth transition curved surface;

[0029] The end surface of the other end of the stirring rod is configured as a smoothly transitioned curved surface.

[0030] Furthermore, each of the stirring rods is disposed between the first jet ring sheet and the second jet ring sheet;

[0031] The distance between every two adjacent stirring rods is the same, so that all the stirring rods are evenly distributed in a ring shape around the central axis of the central cone;

[0032] The first jet ring sheet is arranged between the stirring rod and the central cone.

[0033] Further, the central cone is a cone;

[0034] The angle between the generatrix of the central cone and the central axis of the central cone is within an angle range of greater than or equal to 15 degrees and less than or equal to 60 degrees.

[0035] The present application relates to a stirring device. Based on the production capacity requirement of 320 liters of electrolyte slurry per unit processing volume, the length of the rotary cutting blade will be greater than 180 mm. At a rotary cutting blade speed of 1000 revolutions per minute, the speed of the electrolyte slurry circulation disturbed by the rotary cutting blade is relatively fast, which is conducive to slurry dispersion but not conducive to slurry kneading. To this end, the first jet ring sheet is arranged close to the central cone, and the first jet ring sheet blocks the slurry, so that the low-speed slurry in the electrolyte slurry circulation changes its flow direction, and the low-speed slurry enters the bottom of the rotary cutting blade, thereby achieving kneading. At the same time, the medium and high-speed slurry passes through the first jet hole, and the medium and high-speed slurry as a whole reduces the kinetic energy. The medium and high-speed slurry collides with the stirring rod, thereby achieving speed reduction. After the medium and high-speed slurry after speed reduction is initially kneaded with the slurry of the first jet ring sheet and the second jet ring sheet, it enters the bottom of the rotary cutting blade, thereby achieving kneading. This greatly increases the kneading capacity of the stirring device and solves the defect of the weak kneading capacity of the traditional stirring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic structural diagram of a stirring device provided in one embodiment of the present application.

[0037] Figure 2 A schematic structural diagram of a stirring device provided in yet another embodiment of the present application.

[0038] Figure 3 A schematic structural diagram of a stirring device provided in yet another embodiment of the present application.

[0039] Figure 4 A schematic structural diagram of a stirring device and a slurry container provided in yet another embodiment of the present application.

[0040] Reference numerals:

[0041] 100-center cone; 200-peeling blade; 210-blade back; 220-blade edge; 230-peeling blade;

[0042] 300 - first jet ring plate; 310 - first jet hole; 320 - jet block; 400 - second jet ring plate; 410 - second jet hole; 500 - stirring rod; 610 - working surface; 620 - jet surface; 630 - external projection. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0044] The present application provides a stirring device.

[0045] like Figure 4 As shown, in actual use, the stirring device is arranged at the bottom of the inner cavity of the vessel of the slurry container. The area between the stirring device and the bottom of the inner cavity of the vessel of the slurry container is the space where the preset distance is located.

[0046] like Figure 1 and Figure 2 As shown, in one embodiment of the present application, a stirring device includes a central cone 100 , a rotary cutting blade 200 , a first jet ring sheet 300 , a second jet ring sheet 400 and a stirring rod 500 .

[0047] The peeling paddle 200 includes a plurality of peeling blades 230 , each of which is fixedly connected to the bottom end of the central cone 100 , and the peeling blades 230 are spaced apart from each other and evenly distributed around the central axis of the central cone 100 .

[0048] One end of each peeling blade 230 close to the central cone 100 is fixedly connected to the central cone 100 , and one end of each peeling blade 230 away from the central cone 100 is fixedly connected to the inner circumference of the second jet ring sheet 400 . The second jet ring sheet 400 is provided with a plurality of second jet holes 410 .

[0049] The first jet ring piece 300 is disposed between the central cone 100 and the second jet ring piece 400. The outer diameter of the first jet ring piece 300 is smaller than the inner diameter of the second jet ring piece 400. The first jet ring piece 300 is fixedly connected to each peeling blade 230, and each peeling blade 230 passes through the middle of the first jet ring piece 300. The first jet ring piece 300 is provided with a plurality of first jet holes 310.

[0050] Each of the peeling blades 230 is fixedly connected to a stirring rod 500 , and the bottom of the stirring rod 500 is fixedly connected to the top surface of the peeling blade 230 .

[0051] Specifically, based on the production capacity requirement of 320 liters of electrolyte slurry per unit processing volume, the length dimension of a single rotary cutting blade 230 will be greater than 180 mm. When the rotary cutting blade 230 rotates at a speed of 1000 revolutions per minute, the speed of the electrolyte slurry circulation disturbed by the rotary cutting blade 230 is relatively fast, which is conducive to slurry dispersion but not conducive to slurry kneading. In this embodiment, the first jet ring sheet 300 is arranged closer to the central cone 100 than the second jet ring sheet 400. The first jet ring sheet 300 plays a role in blocking the slurry, so that the low-speed slurry in the electrolyte slurry circulation changes its flow direction, and the low-speed slurry enters the bottom of the rotary cutting blade 230, thereby achieving kneading. At the same time, the medium and high-speed slurry passes through the first jet hole 310, and the medium and high-speed slurry reduces its kinetic energy as a whole. The medium and high-speed slurry collides with the stirring rod 500, thereby achieving speed reduction. After the decelerated medium and high speed slurry is preliminarily kneaded with the slurry of the first jet ring piece 300 and the second jet ring piece 400, they enter the bottom of the rotary cutting blade 230 together to achieve further sufficient kneading.

[0052] More specifically, the mechanism by which the rotary blade 230 disturbs the entire slurry is as follows:

[0053] The rotary cutting blade 230 rotates to disturb the slurry. Part of the slurry undergoes centrifugal motion, and the other part enters the bottom of the rotary cutting blade 230. The first jet hole 310 and the second jet hole 410 provide a centrifugal channel for the slurry. After the slurry moves away from the rotary cutting blade 230, the central cone 100 drains and diverts the slurry to the top of the rotary cutting blade 230, thereby forming a slurry stirring circulation.

[0054] It is worth mentioning that the above stirring equipment was model modified under the following experimental conditions:

[0055] The effective processing capacity of the stirring equipment is 320 liters, the diameter of the container where the stirring equipment is located is 850 mm, the liquid level of the slurry is 583 mm, the nature of the slurry is negative electrode graphite slurry, and the density of the slurry is 1250 kg / m 3 , the rheological index of the slurry is 0.574, the critical yield strength of the material of the stirring device is 3.056 Pascals, the diameter of the rotary cutting blade 230 is 400 mm, and the rotation speed of the rotary cutting blade 230 is 1098.2 revolutions per minute.

[0056] The present application relates to a stirring device, which contains a semi-finished slurry through a slurry container (not shown in the figure), and the stirring device preliminarily cuts the semi-finished slurry through a rotary cutting blade 200. The preliminarily cut semi-finished slurry is divided into two parts under the centrifugal force and thrust of the rotary cutting blade 200. At the initial stage of stirring, a part of the semi-finished slurry is dispersed through the first jet hole 310 and the second jet hole 410. The dispersed slurry refluxes in the fluid field and is diverted to the rotary cutting blade 200 by the central cone 100. At this time, the stirring rod 500 preliminarily kneads the dispersed slurry so that the preliminarily kneaded slurry can be dispersed again by the stirring blade. It is worth mentioning that the viscosity of the dispersed slurry at this time can adapt to the thrust of the slurry circulation. Another part of the slurry semi-finished product contacts the bottom of the rotary cutting blade 200 under the action of the thrust, and is kneaded under the action of the entire fluid force field and the thrust. According to the design structure and design speed of the stirring equipment, when the slurry that meets the viscosity appears, preliminary slurry mass deposition occurs, thereby solving the defect of weak kneading ability of traditional stirring devices.

[0057] like Figure 1 and Figure 2 As shown, in one embodiment of the present application, the working surface 610 of the rotary blade 200 is parallel to the bottom surface of the central cone 100, and the vertical distance between the plane where the top edge of the first jet ring piece 300 is located and the working surface 610 is smaller than the vertical distance between the plane where the top edge of the second jet ring piece 400 is located and the working surface 610. The first jet hole 310 is a circular hole, and the second jet hole 410 is a quadrilateral hole.

[0058] Specifically, Figure 1 As shown, a vertical distance h1 between a plane where the top edge of the first jet ring piece 300 is located and the working surface 610 is smaller than a vertical distance h2 between a plane where the top edge of the second jet ring piece 400 is located and the working surface 610 .

[0059] More specific:

[0060] As shown in Table 1: Kneading performance parameters of stirring plates with jet holes of different shapes.

[0061] It is worth mentioning that the difference between the second jet hole 410 of the parallelogram jet hole and the first jet ring plate 300 of the circular jet hole lies in the difference in the jet ring plate and the jet hole structure, and other structures such as the paddle body size, the bevel size, the cone size, the rod pin size, etc. remain completely consistent.

[0062] Table 1: Performance parameters

[0063]

[0064] More specifically, a first jet ring sheet 300 and a second jet ring sheet 400 are added on the upper part of the rotary cutting blade 230, and the slurry thrown out by the stirring rod 500 is forced to flow to the extrusion kneading area at the bottom of the container, thereby enhancing the kneading effect.

[0065] In fact, through the test data of the circular jet hole and the quadrilateral jet hole under their own optimal stirring power, it can be seen that the circular jet hole is suitable for stirring power with lower stirring power, while the quadrilateral jet hole is suitable for stirring power with higher stirring power.

[0066] In fact, in this embodiment Figure 1 The circular jet hole, namely the first jet hole 310, is arranged on the first jet ring piece 300. The first jet ring piece 300 is arranged close to the central cone 100 and bears less stirring power.

[0067] The quadrilateral jet hole, namely the second jet hole 410 , is arranged on the second jet ring piece 400 away from the central cone 100 and bears a larger stirring power.

[0068] Furthermore, a plurality of holes, namely, the first jet holes 310 and the second jet holes 410, are evenly arranged on the first jet ring plate 300 and the second jet ring plate 400 to avoid the occurrence of a discontinuity layer, thereby affecting the overall fluidity of the slurry and causing deposition.

[0069] The first jet hole 310 is a circular hole, and the second jet hole 410 is a quadrilateral hole.

[0070] The slurry kneading area is the space where the preset spacing is located, and the preset spacing is within a numerical range of greater than or equal to 0.5 times the height of the second jet ring piece and less than or equal to 0.7 times the height of the second jet ring piece, and the diameter of the second jet ring piece is within a numerical range of greater than or equal to 0.3 times the diameter of the slurry container and less than or equal to 0.6 times the diameter of the slurry container.

[0071] This embodiment relates to jet holes. The jet holes increase the circulation speed of the slurry, because the flow area of ​​the quadrilateral jet hole stirring guardrail is increased to varying degrees compared with the circular jet hole stirring guardrail.

[0072] The stirring equipment has a strong kneading effect, which can promote the rapid fusion of powder and liquid, thereby shortening the stirring time of the entire slurry and improving production efficiency.

[0073] like Figures 1 to 3As shown, in one embodiment of the present application, the plurality of first jet holes 310 are divided into a plurality of jet blocks 320. Each jet block 320 has the same structure. Each jet block 320 includes a plurality of first jet holes 310 of the same number. The distance between two adjacent first jet holes 310 of the same jet block 320 is equal. The hole axes of all first jet holes 310 of the same jet block 320 are in the same plane. The plane is defined as the jet surface 620.

[0074] Specifically, the plurality of first jet holes 310 are divided into a plurality of jet blocks 320, which is conducive to the orderly flow of the slurry circulation. Since each jet block 320 is provided with a plurality of first jet holes 310, the slurry can be dispersed in an orderly manner.

[0075] The included angle between the jet surface 620 and the working surface 610 is within an angle range greater than 0 degree and less than or equal to 90 degrees.

[0076] The distances between adjacent jet surfaces 620 are equal.

[0077] It is worth mentioning that the jet surfaces 620 are arranged in a circumferential manner with equal distances around the central axis of the central cone 100 .

[0078] Specifically, the jet surface 620 through which the slurry flows is within an angle range greater than 0 degrees and less than or equal to 90 degrees, which is conducive to the generation of deflection force during the circulation of the slurry. The slurry contacts the bottom of the rotary cutting blade 230 under the action of the deflection force of the material, and is kneaded under the action of the entire fluid force field and thrust. According to the design structure and design speed of the stirring equipment, when the slurry that meets the viscosity appears, a preliminary slurry mass deposition occurs, and the screw pump can export the preliminary slurry mass deposition.

[0079] More specifically, the angle between the working surface 610 and the jet surface 620 is within the range of greater than 0 degrees and less than or equal to 90 degrees. The slurry passing through the first jet hole 310 of the jet surface 620 will form a spiral jet due to the inclination of the jet block 320, so that the slurry can be better kneaded.

[0080] like Figure 1 and Figure 2 As shown, in one embodiment of the present application, the outer shape of the second jet hole 410 projected on the tangent plane of the second jet ring plate 400 is a parallelogram. The tangent plane projection of the second jet hole 410 on the second jet ring plate 400 is defined as the outer shape projection 630 of the second jet hole 410. The first central axis O1 of each second jet hole 410 outer shape projection 630 is parallel to the working surface 610. The angle between the second central axis O2 of the outer shape projection 630 of each second jet hole 410 and the working surface 610 is within an angle range greater than 0 degrees and less than or equal to 90 degrees.

[0081] Specifically, the quadrilateral second jet ring piece 400 can accelerate the circulation velocity of the electrolyte slurry.

[0082] As shown in Table 2: Kneading performance parameters of stirring plates with jet holes of different quadrilateral shapes.

[0083] Table 2 Performance parameters

[0084]

[0085]

[0086] It is worth mentioning that the quadrilateral holes of the second jet ring plates, namely Parallelogram 1, Parallelogram 2, Parallelogram 3 and Parallelogram 4, have different sizes. Through different stirring powers, the effect comparison between the sizes of quadrilateral holes can be achieved, and the effect comparison of the same size of quadrilateral holes but different stirring powers can also be achieved.

[0087] The main parameters of kneading are average shear stress, maximum shear stress, average shear rate and maximum shear rate.

[0088] The slurry circulation effect is mainly reflected in the top suction flow rate and material circulation rate.

[0089] More specifically, the angle between the second central axis of each outer projection 630 and the working surface 610 is within an angle range of greater than 0 degrees and less than or equal to 90 degrees. This is conducive to the generation of deflection force during the slurry circulation process. The slurry contacts the bottom of the rotary cutting blade 230 under the action of the deflection force of the material, and is kneaded under the action of the entire fluid force field and thrust. According to the design structure and design speed of the stirring equipment, when the slurry that meets the viscosity appears, the initial slurry mass deposition occurs, and the screw pump can guide the initial slurry mass deposition out.

[0090] like Figure 2 As shown, in one embodiment of the present application, each peeling blade 230 has the same structure. The peeling blade 230 includes a paddle back 210 and a paddle blade 220. The paddle back 210 is fixedly connected to the paddle blade 220. The paddle back 210 is fixedly connected to the stirring rod 500.

[0091] Specifically, the rotary blade 230 mainly shears, squeezes and disperses the slurry during the entire stirring process. The semi-finished slurry is preliminarily cut by a plurality of blades 220, and the preliminarily cut semi-finished slurry is divided into two parts under the centrifugal force and thrust of the blade back 210 and the blade 220.

[0092] More specifically, the rotary cutting blade 230 divides the space plane into a sector-shaped area where a blank space and a rotary cutting blade 230 are interlaced. The direction trend of the rotary cutting blade 230 from the initial position to the blank space is the rotation direction of the rotary cutting blade 230.

[0093] The peeling blade 230 includes a blade back 210 and a blade edge 220. Under normal working conditions, along the rotation direction of the peeling blade 230, the blade back 210, the blade edge 220 and the blank space are arranged in sequence to form a structural arrangement cycle.

[0094] This embodiment involves the rotary cutting blade 230. Part of the slurry contacts the bottom of the rotary cutting blade 230 under the action of the thrust, and is kneaded under the action of the entire fluid force field and the thrust. According to the design structure and design speed of the stirring device, when the slurry that meets the viscosity appears, the initial slurry mass deposition occurs, and the screw pump can guide the initial slurry mass deposition out, thereby solving the defect of the weak kneading ability of the traditional high-speed homogenization system.

[0095] like Figure 1 As shown, in one embodiment of the present application, one end of the stirring rod 500 connected to the peeling blade 210 passes through the paddle back 210. The end surface of one end of the stirring rod 500 is set as a smoothly transitioned curved surface. The end surface of the other end of the stirring rod 500 is set as a smoothly transitioned curved surface.

[0096] It is worth mentioning that the end surfaces of both ends of the stirring rod 500 are smooth transition curved surfaces, and the disturbance of the electrolyte slurry by the two ends of the stirring rod 500 can be effectively reduced.

[0097] Specifically, the rotary blade 230, the stirring rod 500, the first jet ring piece 300 and the second jet ring piece 400, when fixedly connected, can improve the kneading effect of the dispersed slurry, wherein the stirring rod 500 can achieve preliminary kneading, and the jet holes of the first jet ring piece 300 and the second jet ring piece 400 can further knead. It is worth mentioning that the rotary blade 230 mainly plays the role of shearing, squeezing and dispersing the slurry during the whole stirring process.

[0098] In one embodiment of the present application, each stirring rod 500 is disposed between the first jet ring piece 300 and the second jet ring piece 400. The distance between each two adjacent stirring rods 500 is the same, so that all stirring rods 500 are evenly distributed in a ring shape around the central axis of the central cone 100. The first jet ring piece 300 is disposed between the stirring rod 500 and the central cone 100.

[0099] Specifically, the stirring rod 500 can enhance the interaction between the force fields of the slurry fluid and enhance the kneading effect between the first jet ring piece 300 and the second jet ring piece 400. In the face of different rotation rates of the rotary cutting blade 230, while maintaining the relative positions of the stirring rod 500, the first jet ring piece 300 and the second jet ring piece 400, the distance between the stirring rod 500, the first jet ring piece 300 and the second jet ring piece 400 can be changed to sequentially enhance the average shear stress, maximum shear stress, average shear rate and maximum shear rate of the entire slurry circulation. At the same time, the extrusion and kneading ability of the entire slurry circulation can also be enhanced.

[0100] In one embodiment of the present application, the central cone 100 is a cone, and the angle between the generatrix of the central cone 100 and the central axis of the central cone 100 is within an angle range of greater than or equal to 15 degrees and less than or equal to 60 degrees.

[0101] Specifically, regarding the center cone 100, the center cone 100 has a connection part for replacing a torque wrench for the center cone 100, and the connection part is used to replace the center cone 100 to achieve the adaptation of the taper of the center cone 100 to the stirring condition. Generally speaking, the center cone 100 will be higher than the height of the stirring rod 500.

[0102] More specifically, the central cone 100 divides the entire slurry into:

[0103] The rotary cutting blade 230 rotates to disturb the slurry. Part of the slurry undergoes centrifugal motion, and the other part enters the bottom of the rotary cutting blade 230. The first jet hole 310 and the second jet hole 410 provide a centrifugal channel for the slurry. After the slurry moves away from the rotary cutting blade 230, the central cone 100 drains and diverts the slurry to the top of the rotary cutting blade 230, thereby forming a slurry stirring circulation.

[0104] The technical features of the above-described embodiments may be arbitrarily combined, and the execution order of the method steps is not limited. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0105] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A stirring device, characterized in that: include: Center cone; The rotary cutting blade comprises a plurality of rotary cutting blades, each of which is fixedly connected to the bottom end of the central cone, and the plurality of rotary cutting blades are arranged at intervals and evenly distributed around the central axis of the central cone; A second jet ring sheet, wherein one end of each peeling blade close to the central cone is fixedly connected to the central cone, and one end of each peeling blade away from the central cone is fixedly connected to the inner circumference of the second jet ring sheet; the second jet ring sheet is provided with a plurality of second jet holes; The first jet ring piece is arranged between the central cone and the second jet ring piece, the outer diameter of the first jet ring piece is smaller than the inner diameter of the second jet ring piece, the first jet ring piece is fixedly connected to each rotary cutting blade, and each rotary cutting blade passes through the middle part of the first jet ring piece; the first jet ring piece is provided with a plurality of first jet holes; a plurality of stirring rods, each rotary cutting blade is fixedly connected with a stirring rod, and the bottom of the stirring rod is fixedly connected to the top surface of the rotary cutting blade.

2. The stirring device according to claim 1, characterized in that: The working surface of the rotary cutting blade is parallel to the bottom surface of the central cone, and the vertical distance between the plane where the top edge of the first jet ring piece is located and the working surface is smaller than the vertical distance between the plane where the top edge of the second jet ring piece is located and the working surface.

3. The stirring device according to claim 2, characterized in that: The first jet hole is a circular hole, and the second jet hole is a quadrilateral hole.

4. The stirring device according to claim 3, characterized in that: The first jet ring sheet includes a plurality of jet blocks; The structure of each jet block is the same; Each jet block includes a plurality of first jet holes of the same number; The distances between two adjacent first jet holes in the same jet block are equal; The hole axes of all the first jet holes in the same jet block are in the same plane; this plane is defined as the jet surface.

5. The stirring device according to claim 4, characterized in that: The included angle between the jet surface and the working surface is within an angle range greater than 0 degrees and less than or equal to 90 degrees; The distance between two adjacent jet surfaces is equal.

6. The stirring device according to claim 5, characterized in that: The shape of the projection of the second jet hole on the tangent plane of the second jet ring piece is a parallelogram; the projection of the second jet hole on the tangent plane of the second jet ring piece is defined as the projection of the shape of the second jet hole; A first central axis of the outer shape projection of each second jet hole is parallel to the working surface; The included angle between the second central axis of the outer shape projection of each second jet hole and the working surface is within an angle range greater than 0 degree and less than or equal to 90 degrees.

7. The stirring device according to claim 6, characterized in that: Each rotary cutting blade has the same structure; The rotary cutting blade comprises a blade back and a blade edge; The paddle back is fixedly connected to the paddle blade; The paddle back is fixedly connected to the stirring rod.

8. The stirring device according to claim 7, characterized in that: One end of the stirring rod connected to the rotary cutting blade passes through the blade back; The end surface of one end of the stirring rod is configured as a smooth transition curved surface; The end surface of the other end of the stirring rod is configured as a smoothly transitioned curved surface.

9. The stirring device according to claim 8, characterized in that: Each of the stirring rods is disposed between the first jet ring sheet and the second jet ring sheet; The distance between every two adjacent stirring rods is the same, so that all the stirring rods are evenly distributed in a ring shape around the central axis of the central cone; The first jet ring sheet is arranged between the stirring rod and the central cone.

10. The stirring device according to claim 9, characterized in that: The central cone is a cone; The angle between the generatrix of the central cone and the central axis of the central cone is within an angle range of greater than or equal to 15 degrees and less than or equal to 60 degrees.

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