A centrifugal dispersion device

Abstract

This invention discloses a centrifugal dispersion device, comprising: a cylinder, multiple rotor units, and multiple stator units. When the slurry flows into the rotor cavity, due to the rotation of the rotor units with the shaft core, the slurry is pressed against the inner wall of the rotor outer cylinder under the action of centrifugal force. Local pressure changes occur in the flow holes, and these local pressure changes diffuse around the flow holes, thereby causing the slurry to move irregularly, achieving preliminary overall dispersion of the slurry. After being dispersed through the flow holes on the rotor outer cylinder, the slurry flows into the first flow channel, where a large shear force is generated, resulting in secondary shear dispersion of the slurry. The slurry flows backward along the axis from the first flow channel, and under the action of the baffle, it flows sequentially through the second and third flow channels before entering the next rotor unit for centrifugal dispersion. This centrifugal dispersion device has strong dispersion capabilities, enabling rapid dispersion of the slurry and improving its dispersion efficiency.

Description

Technical Field

[0001] This invention relates to the field of slurry dispersion equipment technology, and specifically to a centrifugal dispersion device. Background Technology

[0002] Existing twin-screw extruders connect all functional components to two parallel screws, including powder conveying, powder mixing, kneading, dilution, and dispersion. However, the speed requirements for dispersion are not consistent with those of the other functions, and the differences are significant, so the dispersion effect cannot meet the usage requirements.

[0003] The current market solution to the problem of insufficient dispersion capacity of twin-screw extruders is to add a buffer tank at the rear end of the twin-screw extruder and use the high-speed and low-speed stirring shafts of the buffer tank to disperse the slurry. However, this solution sacrifices the natural advantage of continuous production of twin-screw extruders. Twin-screw extruders are inherently continuous production lines, which frees up production capacity, but the buffer tank at the rear can only mix batches before outputting to the downstream process, making it impossible to achieve continuous pulping operations and reducing production capacity. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the prior art, such as the inability to achieve continuous pulping operation, small pulping capacity, and low efficiency, thereby providing a centrifugal dispersion device.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0006] A centrifugal dispersing device includes: a cylinder, multiple rotor units, and multiple stator units; the cylinder is connected to the discharge end of a screw extrusion device, and a shaft core driven to rotate by a driving component is provided inside the cylinder; each rotor unit includes an inner rotor cylinder, an outer rotor cylinder, and rotor stiffeners connected between the inner rotor cylinder and the outer rotor cylinder; the inner rotor cylinder is fixedly sleeved on the shaft core and rotates with the shaft core; the inner rotor cylinder and the outer rotor cylinder form a rotor cavity on at least one side of the rotor stiffeners; and multiple flow holes communicating with the rotor cavities are provided on the cylinder wall of the outer rotor cylinder.

[0007] Multiple stator units and multiple rotor units are alternately arranged in the axial direction of the shaft core. Each stator unit includes a stator cylinder fixedly connected to the inner wall of the cylinder and a partition extending from the inner wall of the stator cylinder to the gap between two adjacent rotor units.

[0008] A first flow channel for shearing the slurry is formed between the inner wall of the stator cylinder and the outer wall of the rotor cylinder, and the first flow channel is connected to a plurality of flow holes.

[0009] According to some embodiments of the present invention, a second flow channel for shearing the slurry is formed between the opposite side walls of the partition portion and the corresponding side wall of the rotor outer cylinder, and a third flow channel for shearing the slurry is formed between the inner wall of the partition portion facing the shaft core and the outer wall of the rotor inner cylinder, the first flow channel, the second flow channel and the third flow channel are sequentially connected, and the third flow channel is connected to the two second flow channels on both sides of the corresponding partition portion.

[0010] According to some embodiments of the present invention, in the radial direction of the shaft core, the distance between the inner wall of the partition portion and the inner wall of the stator cylinder is greater than the distance between the inner wall of the rotor outer cylinder and the inner wall of the stator cylinder.

[0011] According to some embodiments of the present invention, the flow direction of the first flow channel and the third flow channel is in the same direction as the axial direction of the shaft core, and the flow direction of the second flow channel is perpendicular to the axial direction of the shaft core.

[0012] According to some embodiments of the present invention, the width of the first flow channel is 2-3 mm.

[0013] According to some embodiments of the present invention, the rotor cavity is a cavity structure with the rotor stiffener as the bottom wall of the cavity, the outer wall of the rotor inner cylinder as the inner peripheral wall of the cavity, the inner wall of the rotor outer cylinder as the outer peripheral wall of the cavity, and the end facing away from the rotor stiffener as an open cavity structure. The rotor cavity is directly connected to both the second flow channel and the third flow channel.

[0014] According to some embodiments of the present invention, the rotor stiffener is integrally formed in the middle of the rotor inner cylinder and the rotor outer cylinder, and the rotor cavity is formed on both opposite sides of the rotor stiffener. The flow hole is provided on the rotor outer cylinder corresponding to the two rotor cavities.

[0015] According to some embodiments of the present invention, there are multiple flow passages, and the multiple flow passages are evenly spaced along the circumference of the rotor outer cylinder.

[0016] According to some embodiments of the present invention, a front end plate suitable for connection with an extruder is provided at the end of the cylinder, and the front end plate is sealed to the outer cylinder of the continuous pulping equipment by fasteners.

[0017] According to some embodiments of the present invention, a rear end plate is provided on the side of the cylinder near the slurry outlet, the driving component is sealed to the rear end plate, the driving component is a motor, a main shaft extending into the cylinder is connected to the output end of the motor, the shaft core is connected to the outer periphery of the main shaft, and the cylinder and the main shaft are sealed to each other.

[0018] According to some embodiments of the present invention, the dispersion speed of the rotor unit is 10-30 m / s.

[0019] The technical solution of this invention has the following advantages:

[0020] 1. The centrifugal dispersion device provided by the present invention comprises multiple stator units and multiple rotor units interlocked and installed in a cylindrical body. The inner rotor cylinder is fixedly sleeved on a shaft and rotates with the shaft. A rotor cavity is formed on at least one side of the rotor ribs of both the inner and outer rotor cylinders. Multiple flow holes communicating with the rotor cavity are provided on the wall of the outer rotor cylinder. A first flow channel is formed between the inner wall of the stator cylinder and the outer wall of the outer rotor cylinder, and the first flow channel communicates with the multiple flow holes. When slurry is extruded from the screw extrusion device and flows into the cylindrical body, and the slurry flows into the rotor cavity, due to the rotation of the rotor units with the shaft, under the action of centrifugal force, the slurry is dispersed towards… The inner wall of the rotor outer cylinder is pressed against the slurry, meaning the slurry flows through the flow holes. The flow holes, filled with slurry, generate localized pressure changes, which diffuse around the flow holes, causing the slurry to move irregularly, thus achieving initial overall dispersion. Furthermore, the turbulence created in the flow holes further disperses the slurry. After being dispersed through the flow holes on the rotor outer cylinder, the slurry flows into the first flow channel. During the rotation of the rotor unit, the relative motion between the rotor and stator units generates significant shear force within the first flow channel, performing secondary shear dispersion on the slurry. The slurry then flows backward along the axis from the first flow channel. This centrifugal dispersion device has strong dispersion capabilities, enabling rapid slurry dispersion and improving dispersion efficiency.

[0021] 2. The centrifugal dispersion device provided by the present invention comprises a second flow channel formed between the opposite side walls of the partition and the corresponding side wall of the rotor outer cylinder, and a third flow channel formed between the inner wall of the partition facing the shaft core and the outer wall of the rotor inner cylinder; the first flow channel, the second flow channel, and the third flow channel are sequentially connected, and the third flow channel connects the two second flow channels on both sides of the corresponding partition. Under the action of the partition, the slurry flows sequentially through the second flow channel and the third flow channel, and enters the next rotor unit to be centrifugally dispersed.

[0022] 3. The centrifugal dispersing device provided by the present invention includes a baffle between two rotor units that separates the slurry within the rotor cavity, preventing the slurry from flowing out of the rotor cavity during rotation. This ensures the slurry adheres to the outer cylinder of the rotor. Furthermore, the baffle creates turbulence in the slurry flow, causing some slurry to flow back into the first flow channel for further shearing and dispersion, thus improving the slurry's dispersion degree. The baffle effectively enhances the dispersing capability of the centrifugal dispersing device, enabling the slurry to be fully dispersed.

[0023] 4. The centrifugal dispersion device provided by this invention has rotor cavities formed on both opposite sides of the rotor ribs on the outer cylinder of the rotor. Flow holes are provided on the walls of the two rotor cavities on corresponding sides of the outer cylinder. After centrifugal dispersion in the rotor cavity at the front end, the slurry enters the first flow channel and is further sheared and dispersed. The slurry flows along the rear side of the axis in the first flow channel, and upon being blocked by the baffle, turbulence is formed. Part of the slurry flows back to the first flow channel, and part flows along the second flow channel. The opening of the rotor cavity at the rear end communicates with the second flow channel, allowing some slurry to enter the rotor cavity at the rear end and be centrifugally dispersed again before re-entering the first flow channel. The formation of rotor cavities on both opposite sides of the rotor ribs allows for reciprocating centrifugal dispersion of the slurry, ensuring thorough dispersion and effectively improving the efficiency of centrifugal dispersion. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 An exploded view of a centrifugal dispersion device provided in some embodiments of the present invention;

[0026] Figure 2 This is a half-sectional view of a centrifugal dispersion device provided in some embodiments of the present invention;

[0027] Figure 3 for Figure 2 The structural view at point A shown;

[0028] Figure 4 This is a schematic diagram of the rotor unit of a centrifugal dispersion device provided in some embodiments of the present invention.

[0029] Explanation of reference numerals in the attached drawings: 1. Cylinder; 2. Rotor unit; 3. Stator unit; 4. Shaft core; 5. Drive component; 6. Rotor cavity; 7. First flow channel; 8. Second flow channel; 9. Third flow channel; 11. Front end plate; 12. Rear end plate; 21. Inner rotor cylinder; 22. Outer rotor cylinder; 23. Rotor stiffener; 221. Flow hole; 30. Stator cylinder; 31. Partition; 51. Main shaft. Detailed Implementation

[0030] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] Reference Figures 1 to 4 As shown, the centrifugal dispersion device proposed in this invention includes: a cylinder 1,

[0035] Multiple rotor units 2 and multiple stator units 3; the cylinder 1 is connected to the discharge end of the screw extrusion device, and the cylinder 1 is provided with a shaft core 4 driven to rotate by the driving component 5; the rotor unit 2 includes an inner rotor cylinder 21, an outer rotor cylinder 22 and a rotor stiffener 23 connected between the inner rotor cylinder 21 and the outer rotor cylinder 22, the inner rotor cylinder 21 is fixedly sleeved on the shaft core 4 and rotates with the shaft core 4, the inner rotor cylinder 21 and the outer rotor cylinder 22 form a rotor cavity 6 on at least one side of the rotor stiffener 23, and the outer rotor cylinder 22 has multiple flow holes 221 communicating with the rotor cavity 6 on its cylinder wall;

[0036] Multiple stator units 3 and multiple rotor units 2 are alternately arranged in the axial direction of the shaft core 4. The stator unit 3 includes a stator cylinder 301 fixedly connected to the inner wall of the cylinder 1 and a partition 31 extending from the inner wall of the stator cylinder 301 to the gap between two adjacent rotor units 2.

[0037] A first flow channel 7 is formed between the inner wall of the stator cylinder 301 and the outer wall of the rotor outer cylinder 22, and the first flow channel 7 is connected to a plurality of flow holes 221; a second flow channel 8 is formed between the opposite side walls of the partition part 31 and the corresponding side wall of the rotor outer cylinder 22; a third flow channel 9 is formed between the inner wall of the partition part 31 facing the shaft core 4 and the outer wall of the rotor inner cylinder 21; the first flow channel 7, the second flow channel 8 and the third flow channel 9 are connected in sequence, and the third flow channel 9 is connected to the two second flow channels 8 on both sides of the corresponding partition part 31.

[0038] Specifically, multiple stator units 3 and multiple rotor units 2 are interlocked and installed inside the cylinder 1. The rotor inner cylinder 21 is fixedly sleeved on the shaft core 4 and rotates with the shaft core 4. The rotor inner cylinder 21 and the rotor outer cylinder 22 form a rotor cavity 6 on at least one side of the rotor stiffener 23. Multiple flow holes 221 communicating with the rotor cavity 6 are opened on the cylinder wall of the rotor outer cylinder 22. A first flow channel 7 for shearing the slurry is formed between the inner wall of the stator cylinder 301 and the outer wall of the rotor outer cylinder 22. The first flow channel 7 communicates with the multiple flow holes 221.

[0039] A second flow channel 8 for shearing the slurry is formed between the opposite side walls of the partition part 31 and the side wall of the corresponding rotor outer cylinder 22. A third flow channel 9 for shearing the slurry is formed between the inner wall of the partition part 31 facing the shaft core 4 and the outer wall of the rotor inner cylinder 21. The first flow channel 7, the second flow channel 8 and the third flow channel 9 are connected in sequence. The third flow channel 9 connects the two second flow channels 8 on both sides of the corresponding partition part 31.

[0040] Understandably, when the slurry is extruded from the screw extruder and flows into the cylinder 1, and then into the rotor cavity 6, the rotor unit 2 rotates with the shaft core 4. Under centrifugal force, the slurry adheres to and is squeezed against the inner wall of the rotor outer cylinder 22. That is, the slurry flows through the flow holes 221. The flow holes 221, filled with slurry, generate local pressure changes due to the slurry flow. These local pressure changes diffuse around the flow holes 221, thereby causing the slurry to move irregularly, thus achieving preliminary slurry processing. The slurry is dispersed as a whole; moreover, the slurry forms turbulence in the flow holes 221, which can further disperse the slurry. After being dispersed by the flow holes 221 on the rotor outer cylinder 22, the slurry flows to the first flow channel 7. After the slurry flows to the first flow channel 7, the stator cylinder 301 blocks the slurry flowing out of the flow holes 221, causing some of the slurry to flow back. The slurry will flow back and forth through the flow holes 221, and dense convection can be formed between multiple flow holes 221, which can quickly complete the initial dispersion of the slurry.

[0041] During the rotation of rotor unit 2, the relative motion between rotor unit 2 and stator unit 3 generates a large shear force within the first flow channel 7, thus performing secondary shearing and dispersion on the slurry within the first flow channel 7. The slurry flows backward along the axis from the first flow channel 7, and under the action of the baffle 31, the slurry flows sequentially through the second flow channel 8 and the third flow channel 9, entering the next rotor unit 2 for centrifugal dispersion. This centrifugal dispersion device has strong dispersion capability, enabling rapid dispersion of the slurry and improving the dispersion efficiency.

[0042] It should be noted that the outer cylinder 22 of the rotor has multiple flow holes 221 that communicate with the rotor cavity 6. The number, shape and size of the flow holes 221 are not limitations of this invention. The smaller the size of the flow holes 221, the stronger its centrifugal dispersion ability, but the slower the dispersion efficiency. The dispersion holes can be evenly distributed or irregularly distributed along the circumference of the outer cylinder 22 of the rotor.

[0043] Stator unit 3 and rotor unit 2 are arranged alternately. The specific number of stator unit 3 and rotor unit 2 can be determined according to the slurry introduced in actual application. Increasing the number of stator unit 3 and rotor unit 2 groups can enhance the dispersion ability. In some embodiments of the present invention, a structure of three stator unit 3 and three rotor unit 2 is adopted. The specific number of rotor unit 2 and stator unit 3 is not a limitation of the present invention.

[0044] Reference Figure 3 As shown, in some embodiments of the present invention, in the radial direction of the shaft core 4, the distance between the inner wall of the partition portion 31 and the inner wall of the stator cylinder 301 is greater than the distance between the inner wall of the rotor outer cylinder 22 and the stator cylinder.

[0045] The distance between the inner walls of body 301.

[0046] Specifically, due to centrifugal force, the slurry preferentially adheres to the inner wall of the rotor outer cylinder 22. Therefore, before flowing through the third flow channel 9 into the next rotor unit 2, the slurry automatically fills the area outside the inner wall of the partition 31, meaning the slurry completely submerges all the flow holes 221 on the rotor unit 2, achieving sufficient centrifugal dispersion of the slurry. The partition 31, located between the two rotor units 2, separates the slurry located in the rotor cavity 6, preventing the slurry from flowing out of the cavity 6 during rotation, thus ensuring the slurry adheres to the rotor outer cylinder 22. Furthermore, the partition 31 creates turbulence in the slurry flow, causing some slurry to flow back into the first flow channel 7 for further shearing and dispersion, improving the slurry dispersion. The partition 31 effectively improves the dispersion capability of this centrifugal dispersion device, ensuring sufficient slurry dispersion.

[0047] In some embodiments of the present invention, the flow direction of the first flow channel 7 and the third flow channel 9 is in the same direction as the axial direction of the shaft core 4, and the flow direction of the second flow channel 8 is perpendicular to the axial direction of the shaft core 4.

[0048] In some embodiments of the present invention, the width of the first flow channel 7 is 2-3 mm.

[0049] Specifically, the width of the first flow channel 7 is the distance between the outer wall of the rotor outer cylinder 22 and the inner wall of the stator cylinder 301. The smaller this distance, i.e., the narrower the width of the first flow channel 7, the greater the shear force within the first flow channel 7, and the slower the rotation speed of the rotor unit 2. The greater the shear force, the higher the dispersion of the slurry; the slower the rotation speed of the rotor unit 2, the slower the dispersion efficiency of the slurry. In some embodiments of the present invention, the width of the first flow channel is set at 2-3 mm, and the dispersion speed of the rotor unit 2 is 10-30 m / s.

[0050] It should be noted that the dispersion speed of rotor unit 2 is adjustable. In practical applications, the rotation speed of rotor unit 2 can be adjusted according to the composition, viscosity and other characteristics of the slurry to match the requirements of different slurries for shear dispersion efficiency. The rotation speed of rotor unit 2 can be adjusted by changing the rotation speed of drive component 5 through PLC controller. The rotation speed adjustment method of rotor unit 2 is not a limitation of this invention.

[0051] The specifications and dimensions of the rotor unit 2 and stator unit 3 can be changed according to the properties of the slurry introduced, so as to change the width of the first flow channel 7.

[0052] Reference Figure 4 As shown, in some embodiments of the present invention, the rotor cavity 6 is a cavity structure with the rotor stiffener 23 as the bottom wall of the cavity, the outer wall of the rotor inner cylinder 21 as the inner peripheral wall of the cavity, the inner wall of the rotor outer cylinder 22 as the outer peripheral wall of the cavity, and the end facing away from the rotor stiffener 23 is open. The rotor cavity 6 is directly connected to the second flow channel 8 and the third flow channel 9.

[0053] In some embodiments of the present invention, the rotor stiffener 23 is integrally formed in the middle of the rotor inner cylinder 21 and the rotor outer cylinder 22, and rotor cavities 6 are formed on both opposite sides of the rotor stiffener 23. The rotor outer cylinder 22 corresponding to the two rotor cavities 6 is provided with flow holes 221.

[0054] Specifically, the rotor outer cylinder 22 has rotor cavities 6 formed on both opposite sides of the rotor stiffener 23. Each of the two rotor cavities 6 on opposite sides of the rotor outer cylinder 22 has a flow-through hole 221. After centrifugal dispersion in the rotor cavity 6 at the front end, the slurry enters the first flow-through channel 7 and is further sheared and dispersed. The slurry flows along the rear side of the axis in the first flow-through channel 7, and after being blocked by the baffle 31, turbulence is formed. Part of the slurry flows back to the first flow-through channel 7, and part flows along the second flow-through channel 8. The opening of the rotor cavity 6 on the rear side is connected to the second flow-through channel 8, allowing some slurry to enter the rotor cavity 6 on the rear side and be centrifugally dispersed again before re-entering the first flow-through channel 7. The formation of rotor cavities 6 on both opposite sides of the rotor stiffener 23 allows the slurry to be reciprocated and centrifugally dispersed, ensuring thorough dispersion and effectively improving the efficiency of centrifugal dispersion.

[0055] It is understandable that the rotor cavity 6 is a smooth cavity without dead corners, which avoids the accumulation of slurry in the dead zone, thus affecting the dispersion and flow of the slurry.

[0056] In some embodiments of the present invention, there are multiple flow holes 221, and the multiple flow holes 221 are evenly spaced along the circumference of the rotor outer cylinder 22.

[0057] Specifically, multiple flow holes 221 are evenly spaced along the circumference of the rotor outer cylinder 22, so that when the rotor unit 2 rotates, the slurry is dispersed from the rotor cavity 6. The multiple flow holes 221 can form dense convection, quickly completing the dispersion of the slurry. The shape of the flow holes 221 can be circular, elliptical, or square, and the specific shape of the flow holes 221 is not a limitation of the present invention.

[0058] According to some embodiments of the present invention, a front end plate 11 suitable for connection with an extruder is provided at the end of the cylinder 1, and the front end plate 11 is sealed to the outer cylinder of the continuous pulping equipment by fasteners.

[0059] Specifically, the barrel 1 is sealed to the end plate at the extruder's discharge end. Specifically, a front end plate 11 is fixedly mounted on one end of the barrel 1, and the front end plate 11 and the extruder's discharge end are fixedly connected by multiple connecting bolts. A sealing component is provided on the connection surface between the front end plate 11 and the extruder's discharge end. This design not only ensures a good seal at the connection between the barrel 1 and the extruder, preventing slurry leakage, but also simplifies the structure, facilitates installation, and helps shorten the interval between the extruder end and the rotor unit 2, avoiding the problem of localized slurry settling due to excessively long intervals, which could affect the quality of the slurry product.

[0060] According to some embodiments of the present invention, a rear end plate 12 is provided on the side of the cylinder 1 near the slurry outlet, and a drive member 5 is sealed to the rear end plate 12. The drive member 5 is a motor, and a main shaft 51 extending into the cylinder 1 is connected to the output end of the motor. The shaft core 4 is connected to the outer periphery of the main shaft 51, and the cylinder 1 and the main shaft 51 are sealed to each other.

[0061] Specifically, the driving component 5 is a motor, and a main shaft 51 extending into the cylinder 1 is connected to the output end of the motor. The shaft core 4 is fixedly connected to the outer periphery of the main shaft 51. As the main shaft 51 rotates, the cylinder 1 and the main shaft 51 are sealed together. Specifically, a sealing structure is provided at the connection between the rear end plate 12 of the cylinder 1 and the main shaft 51. The sealing structure can prevent slurry from leaking outward from the gap at the connection between the cylinder 1 and the main shaft 51.

[0062] It is understood that the cylinder wall of the cylinder 1 is provided with a medium heat exchange channel, which has a medium inlet and a medium outlet, and is spirally arranged around the circumference of the cylinder 1. Specifically, the medium heat exchange channel is a cold medium channel, in which the cold medium enters from the medium inlet, passes through the cold medium channel, and flows out from the medium outlet. The cold medium can carry away some of the heat from the cylinder 1 to cool the slurry inside the cylinder 1. Alternatively, the medium heat exchange channel is a hot medium channel, in which the hot medium enters from the medium inlet, passes through the hot medium channel, and flows out from the medium outlet. The hot medium can heat the slurry inside the cylinder 1.

[0063] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A centrifugal dispersion device, characterized in that, include: The cylinder (1) is connected to the discharge end of the screw extrusion device, and the cylinder (1) is provided with a shaft (4) that is driven to rotate by the driving component (5); Multiple rotor units (2) are provided. Each rotor unit (2) includes an inner rotor cylinder (21), an outer rotor cylinder (22), and a rotor stiffener (23) connecting the inner rotor cylinder (21) and the outer rotor cylinder (22). The inner rotor cylinder (21) is fixedly sleeved on the shaft core (4) and rotates with the shaft core (4). The inner rotor cylinder (21) and the outer rotor cylinder (22) each have a rotor cavity (6) formed on opposite sides of the rotor stiffener (23). The rotor cavity (6) is a cavity structure with the rotor stiffener (23) as the bottom wall of the cavity, the outer wall of the inner rotor cylinder (21) as the inner peripheral wall of the cavity, the inner wall of the outer rotor cylinder (22) as the outer peripheral wall of the cavity, and the end facing away from the rotor stiffener (23) is open. The outer rotor cylinder (22) has multiple flow holes (221) that communicate with the rotor cavity (6). Multiple stator units (3) and multiple rotor units (2) are alternately arranged in the axial direction of the shaft core (4). The stator unit (3) includes a stator cylinder (30) fixedly connected to the inner wall of the cylinder (1) and a partition (31) extending from the inner wall of the stator cylinder (30) to the gap between two adjacent rotor units (2). A first flow channel (7) for shearing the slurry is formed between the inner wall of the stator cylinder (30) and the outer wall of the rotor outer cylinder (22), and the first flow channel (7) is connected to a plurality of flow holes (221).

2. The centrifugal dispersion device according to claim 1, characterized in that, A second flow channel (8) for shearing the slurry is formed between the opposite side walls of the partition (31) and the corresponding side wall of the rotor outer cylinder (22). A third flow channel (9) for shearing the slurry is formed between the inner wall of the partition (31) facing the shaft core (4) and the outer wall of the rotor inner cylinder (21). The first flow channel (7), the second flow channel (8) and the third flow channel (9) are connected in sequence. The third flow channel (9) is connected to the two second flow channels (8) on both sides of the corresponding partition (31).

3. The centrifugal dispersion device according to claim 1, characterized in that, In the radial direction of the shaft core (4), the distance between the inner wall of the partition (31) and the inner wall of the stator cylinder (30) is greater than the distance between the inner wall of the rotor outer cylinder (22) and the inner wall of the stator cylinder (30).

4. The centrifugal dispersion device according to claim 2, characterized in that, The flow direction of the first flow channel (7) and the third flow channel (9) is in the same direction as the axis of the shaft core (4), and the flow direction of the second flow channel (8) is perpendicular to the axis of the shaft core (4).

5. The centrifugal dispersion device according to claim 4, characterized in that, The width of the first flow channel (7) is 2-3 mm.

6. The centrifugal dispersion device according to claim 2, characterized in that, The rotor cavity (6) is directly connected to both the second flow passage (8) and the third flow passage (9).

7. The centrifugal dispersion device according to claim 6, characterized in that, The rotor stiffener (23) is integrally formed in the middle of the rotor inner cylinder (21) and the rotor outer cylinder (22), and the flow hole (221) is provided on the rotor outer cylinder (22) of both rotor cavities (6).

8. The centrifugal dispersion device according to claim 7, characterized in that, There are multiple flow holes (221), and the multiple flow holes (221) are evenly spaced along the circumference of the rotor outer cylinder (22).

9. The centrifugal dispersion device according to claim 1, characterized in that, The cylinder (1) is provided with a front end plate (11) at the port suitable for connection with an extruder. The front end plate (11) is sealed to the outer cylinder of the continuous pulping equipment by fasteners.

10. The centrifugal dispersion device according to claim 1, characterized in that, The dispersion speed of the rotor unit (2) is 10-30 m / s.

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