Centrifugal Disperser

Abstract

This centrifugal disperser includes a cylindrical body (1), multiple rotor units (2), and multiple stator units (3). When slurry flows into the rotor cavity (6), the rotor unit (2) rotates along with the shaft core (4), and centrifugal force presses the slurry against the inner wall of the rotor outer cylinder (22), causing it to adhere to the inner wall of the rotor outer cylinder (22). Localized pressure changes occur in the fluid passage holes (221), which spread around the fluid passage holes (221), causing the slurry to move irregularly. After being dispersed by the fluid passage holes (221) in the rotor outer cylinder (22), the slurry flows into the first fluid passage channel (7), where a relatively large shear force is generated within the first fluid passage channel (7). This generates secondary shear dispersion of the slurry. The slurry flows backward along the axis within the first fluid passage channel (7). The blocking section (31) causes the slurry to flow through the second fluid passage (8) and the third fluid passage (9) in this order, and then into the next rotor unit (2) where it is dispersed by centrifugal force.

Description

[Technical Field]

[0001] REFERENCE TO RELATED APPLICATIONS This application claims priority from Chinese Patent Application No. 202211570043.4, filed on December 7, 2022, for an invention entitled "Centrifugal Disperser," the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the technical field of slurry dispersion equipment, and specifically to centrifugal dispersers. [Background technology]

[0003] In existing twin-screw extruders, all screw elements are arranged in series on two parallel screws, and all functions, such as powder conveying, powder mixing, kneading, dilution, and dispersion, are performed. However, the rotation speed requirements for the dispersion function do not match the rotation speed requirements for the other functions mentioned above, and the difference is quite large, so the dispersion effect cannot meet the usage needs.

[0004] In the current market, a solution to the lack of dispersion capability of twin screws is to add a buffer tank to the rear end of the twin screw and disperse the slurry using the buffer tank's high-speed and low-speed stirring shafts. However, this solution sacrifices the advantage of twin screw extruders, which is continuous production. The twin screw production method is continuous production that frees up production capacity, but the buffer tank added to the rear end stirs the slurry batch by batch before transporting it to the back-end process, which results in the inability to produce slurry continuously and a decrease in production capacity.

[0005] Therefore, the technical problem to be solved by the present application is to provide a centrifugal disperser that overcomes the drawbacks of the prior art, such as the inability to realize continuous slurry production, the small production capacity for producing slurry, and the low efficiency.

[0006] In order to solve the above technical problems, the technical solution of this application is as follows: The centrifugal disperser includes a cylindrical body, a plurality of rotor units, and a plurality of stator units. The cylindrical body is in communication with the discharge end of the screw extruder, and a shaft core is provided within the cylindrical body that is rotated by the driving member. The rotor unit includes a rotor inner cylinder, a rotor outer cylinder, and a rotor rib plate connected between the rotor inner cylinder and the rotor outer cylinder. The rotor inner cylinder is fixedly sleeved on the shaft core and rotates together with the shaft core. The rotor inner cylinder and the rotor outer cylinder form a rotor cavity on at least one side of the rotor rib plate. A plurality of fluid passage holes are provided in the wall of the rotor outer cylinder, and the plurality of fluid passage holes communicate with the rotor cavity. The plurality of stator units and the plurality of rotor units are alternately arranged along the axial direction of the shaft core. Each stator unit includes a stator cylinder fixedly connected to an inner wall of the cylinder, and a blocking portion extending from the inner wall of the stator cylinder toward a gap between two adjacent rotor units. A first fluid passage for shearing the slurry is formed between the inner wall of the stator cylinder and the outer wall of the rotor outer cylinder, and the first fluid passage is connected to a plurality of fluid passage holes.

[0007] According to some embodiments of the present application, a second fluid-passing passage for shearing the slurry is formed between the opposing side walls of the blocking section and the side wall of the rotor outer cylinder facing the blocking section. A third fluid-passing passage for shearing the slurry is formed between the inner wall of the blocking section facing the axis and the outer wall of the rotor inner cylinder. The first fluid-passing passage, the second fluid-passing passage, and the third fluid-passing passage are sequentially connected. The third fluid-passing passage is connected to two second fluid-passing passages on both sides of the blocking section corresponding to the third fluid-passing passage 9.

[0008] According to some embodiments of the present application, the distance between the inner wall of the blocking portion and the inner wall of the stator cylinder in the radial direction of the axis is greater than the distance between the inner wall of the rotor outer cylinder and the inner wall of the stator cylinder.

[0009] According to some embodiments of the present application, the flow direction of the first fluid-passing flow path and the flow direction of the third fluid-passing flow path are the same as the axial direction of the shaft core, and the flow direction of the second fluid-passing flow path is perpendicular to the axial direction of the shaft core.

[0010] According to some embodiments of the present application, the first fluid-passing channel has a width of 2 to 3 mm.

[0011] According to some embodiments of the present application, the rotor cavity has a cavity structure in which the rotor rib plate serves as the bottom wall of the cavity, the outer wall of the rotor inner cylinder serves as the inner peripheral wall of the cavity, and the inner wall of the rotor outer cylinder serves as the outer peripheral wall of the cavity, and one end facing away from the rotor rib plate is open. The rotor cavity is in direct communication with both the second fluid passage and the third fluid passage.

[0012] According to some embodiments of the present application, the rotor rib plate is integrally molded in the center of the rotor inner cylinder and the rotor outer cylinder. Rotor cavities are formed on opposite sides of the rotor rib plate. Fluid passage holes are provided in the rotor outer cylinders corresponding to the two rotor cavities.

[0013] According to some embodiments of the present application, there are a plurality of fluid passage holes, and the plurality of fluid passage holes are arranged at uniform intervals along the circumferential direction of the rotor outer cylinder.

[0014] According to some embodiments of the present application, the port of the barrel is provided with a tip plate suitable for connection to a screw extruder, and the tip plate is sealingly connected to the outer barrel of the continuous slurry manufacturing apparatus via a fastening member.

[0015] According to some embodiments of the present application, a rear end plate is provided on one side of the cylinder near the slurry discharge port. A driving member is sealedly connected to the rear end plate. The driving member is a motor. A main shaft extending into the cylinder is connected to an output port of the motor. A shaft core is connected to the outer periphery of the main shaft. The cylinder is sealedly connected to the main shaft.

[0016] According to some embodiments of the present application, the dispersion speed of the rotor unit is 10-30 m / s.

[0017] The technical solution of this application has the following advantages: Advantage 1: In the centrifugal disperser according to the present application, multiple stator units and multiple rotor units are alternately arranged within the cylindrical body. The rotor inner cylinder is fixedly sleeved to the shaft core and rotates together with the shaft core. The rotor inner cylinder and the rotor outer cylinder form a rotor cavity on at least one side of the rotor rib plate. The cylindrical wall of the rotor outer cylinder is provided with multiple fluid passage holes, which are in communication with the rotor cavity. A first fluid passage is formed between the inner wall of the stator cylinder and the outer wall of the rotor outer cylinder, which is in communication with the multiple fluid passage holes. When the slurry is extruded from the screw extruder and flows into the cylindrical body and then into the rotor cavity, the rotor unit rotates together with the shaft core, so that the slurry is pressed against the inner wall of the rotor outer cylinder by centrifugal force and is in close contact with the inner wall of the rotor outer cylinder, i.e., the slurry flows through the fluid passage holes. Within the fluid passage holes filled with slurry, local pressure changes occur due to the flow of the slurry. These local pressure changes spread around the fluid passage holes, causing the slurry to move irregularly and initially dispersing the entire slurry. Furthermore, turbulence caused by the slurry in the fluid passage holes can further disperse the slurry. After being dispersed through the fluid passage holes in the rotor outer casing, the slurry flows into the first fluid passage. During rotation of the rotor unit, the relative motion between the rotor unit and the stator unit generates a relatively large shear force within the first fluid passage, thereby causing secondary shear dispersion of the slurry within the first fluid passage. The slurry flows backward along the axis within the first fluid passage. This centrifugal disperser has a relatively strong dispersion ability, enabling rapid dispersion of the slurry and improving the efficiency of slurry dispersion. Advantage 2: In the centrifugal disperser according to the present application, a second fluid passage is formed between the opposing side walls of the blocking section and the side wall of the rotor outer cylinder facing the blocking section. A third fluid passage is formed between the inner wall of the blocking section facing the axis and the outer wall of the rotor inner cylinder. The first fluid passage, the second fluid passage, and the third fluid passage are sequentially connected. The third fluid passage is connected to two second fluid passages on both sides of the blocking section corresponding to the third fluid passage 9. The blocking section allows the slurry to flow sequentially through the second fluid passage and the third fluid passage, and then into the next rotor unit where it is dispersed by centrifugal force. Advantage 3: In the centrifugal disperser according to the present application, the blocking section provided between the two rotor units blocks the slurry in the rotor cavity, preventing the slurry from flowing out of the rotor cavity during rotation, thereby causing the slurry to adhere closely to the rotor outer cylinder. Furthermore, the blocking section creates turbulence in the flow of the slurry, causing a portion of the slurry to return to the first fluid passage and be shear-dispersed again. Therefore, the degree of dispersion of the slurry is improved. The blocking section effectively improves the dispersion ability of the centrifugal disperser described above, allowing the slurry to be thoroughly dispersed. Advantage 4: In the centrifugal disperser according to the present application, rotor cavities are formed on both opposing sides of the rotor rib plate in the rotor outer cylinder, and fluid passage holes are provided in the wall of the rotor outer cylinder corresponding to the two rotor cavities on both sides. After the slurry is centrifuged and dispersed in the rotor cavities at the leading end of the rotary rib plate, it flows into the first fluid passage and is shear-dispersed again. The slurry flows backward along the axis in the first fluid passage and is blocked by the blocking section, generating turbulence. Some of the slurry returns to the first fluid passage, and some of the slurry flows along the second fluid passage. The opening of the rotor cavity at the rear end of the rotary rib plate is connected to the second fluid passage. Some of the slurry flows into the rotor cavity at the rear end of the rotary rib plate, is centrifuged and dispersed again, and then flows again into the first fluid passage. Rotor cavities are formed on both opposing sides of the rotary rib plate. This allows the slurry to be centrifuged back and forth, resulting in sufficient dispersion of the slurry and effectively improving the efficiency of centrifugal dispersion. [Brief explanation of the drawings]

[0018] In order to more clearly describe the technical solutions of the specific embodiments of the present application or the prior art, the drawings necessary for describing the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described are some embodiments of the present application, and those skilled in the art can obtain other drawings from these drawings without creative efforts. [Figure 1] FIG. 1 is an exploded view of a centrifugal disperser according to some embodiments of the present application. [Figure 2] FIG. 2 is a half cross-sectional view of a centrifugal disperser according to some embodiments of the present application. [Figure 3] FIG. 3 is a schematic diagram showing the structure of the portion A shown in FIG. [Figure 4] FIG. 4 is a schematic diagram showing the structure of a rotor unit in a centrifugal disperser according to some embodiments of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0019] The technical solution of the present application will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments that can be obtained by those skilled in the art without creative efforts all belong to the protection scope of the present application.

[0020] In the description of this application, directional or positional relationships indicated by terms such as "center," "upper," "lower," "left," "right," "upright," "horizontal," "inner," and "outer" are based on directional or positional relationships shown in the accompanying drawings, and are intended for the purpose of conveniently explaining and simplifying this application. They do not express or imply that a device or element necessarily has a specific orientation or is constructed or operated in a specific direction, and therefore should not be construed as limiting this application. Furthermore, terms such as "first," "second," and "third" are used merely for descriptive purposes and should not be understood as expressing or implying relative importance.

[0021] In the description of this application, unless otherwise clearly specified or limited, the terms "attach," "couple," "connect," and the like should be understood in a broader sense. For example, they may be fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via a medium, or internally connected between two elements. Those skilled in the art will be able to understand the specific meanings of the above terms in this application depending on the specific circumstances.

[0022] Furthermore, the technical features according to different embodiments of the present application described below can be combined with each other unless there is a contradiction.

[0023] 1 to 4, the centrifugal disperser according to the present application includes a cylindrical body 1, a plurality of rotor units 2, and a plurality of stator units 3. The cylindrical body 1 is connected to the discharge end of a screw extruder, and a shaft core 4 that is rotated by driving a drive member 5 is provided within the cylindrical body 1. The rotor unit 2 includes a rotor inner cylinder 21, a rotor outer cylinder 22, and a rotor rib plate 23 connected between the rotor inner cylinder 21 and the rotor outer cylinder 22. The rotor inner cylinder 21 is fixedly fitted to the shaft core 4 and rotates together 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 rib plate 23. A plurality of fluid passage holes 221 are provided in the cylindrical wall of the rotor outer cylinder 22, and the plurality of fluid passage holes 221 are connected to the rotor cavity 6.

[0024] The plurality of stator units 3 and the plurality of rotor units 2 are arranged alternately along 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 blocking portion 31 extending from the inner wall of the stator cylinder 30 toward the gap between two adjacent rotor units 2.

[0025] A first fluid passage 7 is formed between the inner wall of the stator cylinder 30 and the outer wall of the rotor outer cylinder 22, and the first fluid passage 7 is in communication with the plurality of fluid passage holes 221. A second fluid passage 8 is formed between the opposing side walls of the blocking section 31 and the side wall of the rotor outer cylinder 22 facing the blocking section 31. A third fluid passage 9 is formed between the inner wall of the blocking section 31 facing the shaft core 4 and the outer wall of the rotor inner cylinder 21. The first fluid passage 7, the second fluid passage 8, and the third fluid passage 9 are in communication with each other in sequence. The third fluid passage 9 is in communication with the two second fluid passages 8 on both sides of the blocking section 31 that correspond to the third fluid passage 9.

[0026] Specifically, the plurality of stator units 3 and the plurality of rotor units 2 are alternately arranged along the axial direction of the shaft core 4. The rotor inner cylinder 21 is fixedly sleeved on the shaft core 4 and rotates together 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 rib plate 23. A plurality of fluid passing holes 221 are provided in the cylindrical wall of the rotor outer cylinder 22, and the plurality of fluid passing holes 221 communicate with the rotor cavity 6. A first fluid passing flow path 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 fluid passing flow path 7 communicates with the plurality of fluid passing holes 221.

[0027] A second fluid passage 8 for shearing the slurry is formed between the opposing side walls of the blocking section 31 and the side wall of the rotor outer cylinder 22 facing the blocking section 31. A third fluid passage 9 for shearing the slurry is formed between the inner wall of the blocking section 31 facing the shaft core 4 and the outer wall of the rotor inner cylinder 21. The first fluid passage 7, the second fluid passage 8, and the third fluid passage 9 are sequentially connected to each other. The third fluid passage 9 is connected to the two second fluid passages 8 on both sides of the blocking section 31 that correspond to the third fluid passage 9.

[0028] As can be seen, when the slurry is extruded from the screw extruder and flows into the cylindrical body 1 and then into the rotor cavity 6, the rotor unit 2 rotates together with the shaft core 4. Because of this, centrifugal force presses the slurry against the inner wall of the rotor outer cylinder 22, forcing it into intimate contact with the inner wall of the rotor outer cylinder 22. That is, the slurry flows through the fluid passage holes 221. Within the fluid passage holes 221, which are filled with the slurry, local pressure changes occur due to the flow of the slurry. These local pressure changes spread around the fluid passage holes 221, causing the slurry to move irregularly and initially dispersing the entire slurry. Furthermore, turbulent flow caused by the slurry in the fluid passage holes 221 further disperses the slurry. After being dispersed by the fluid passage holes 221 in the rotor outer cylinder 22, the slurry flows into the first fluid passage 7. When the slurry flows into the first fluid passage 7, the stator cylinder 30 blocks the slurry flowing out of the fluid passage holes 221, thereby causing a portion of the slurry to return and flow back and forth through the fluid passage holes 221. As a result, dense convection occurs between the multiple fluid passage holes 221, quickly completing the initial dispersion of the slurry. During rotation of the rotor unit 2, the relative motion between the rotor unit 2 and the stator unit 3 generates a relatively large shear force within the first fluid passage 7, thereby causing secondary shear dispersion of the slurry within the first fluid passage 7. The slurry flows backward along the axis within the first fluid passage 7. The blocking portion 31 allows the slurry to flow sequentially through the second fluid passage 8 and the third fluid passage 9 before flowing into the next rotor unit 2 and being dispersed by centrifugal force. This centrifugal disperser has a relatively strong dispersion ability, enabling rapid dispersion of the slurry and improving the efficiency of slurry dispersion.

[0029] The rotor outer cylinder 22 has a plurality of fluid passage holes 221 in its cylindrical wall, which are in communication with the rotor cavity 6. The number, shape, and size of the fluid passage holes 221 do not limit the present application. The smaller the size of the fluid passage holes 221, the stronger the centrifugal dispersion ability of the fluid passage holes 221, but the lower the dispersion efficiency of the fluid passage holes 221. The dispersion holes can be regularly arranged in the circumferential direction along the cylindrical wall of the rotor outer cylinder 22, or can be irregularly arranged in the circumferential direction along the cylindrical wall of the rotor outer cylinder 22.

[0030] The stator units 3 and the rotor units 2 are arranged alternately. The specific number of stator units 3 and rotor units 2 can be determined according to the slurry flowing in the actual application. Increasing the number of groups of stator units 3 and rotor units 2 can improve the dispersion ability. In some embodiments of the present application, a structure combining three stator units 3 and three rotor units 2 is adopted. The specific number of rotor units 2 and stator units 3 is not a limitation of the present application.

[0031] Referring to Figure 3, in some embodiments of the present application, in the radial direction of the axis 4, the distance between the inner wall of the blocking portion 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.

[0032] Specifically, because centrifugal force preferentially causes the slurry to adhere to the inner wall of the rotor outer cylinder 22, the slurry automatically fills the area other than the inner wall of the blocking section 31 before flowing through the third fluid passage 9 into the next rotor unit 2. That is, all of the fluid passage holes 221 in the rotor unit 2 are completely submerged in the slurry. This ensures sufficient centrifugal dispersion of the slurry. The blocking section 31 installed between two rotor units 2 blocks the slurry in the rotor cavity 6, preventing the slurry from leaking out of the rotor cavity 6 during rotation, thereby ensuring that the slurry adheres to the rotor outer cylinder 22. Furthermore, the blocking section 31 creates turbulence in the slurry flow, causing some of the slurry to return to the first fluid passage 7 and be shear-dispersed again. This improves the degree of dispersion of the slurry. The blocking section 31 effectively improves the dispersion ability of the centrifugal disperser described above, ensuring sufficient dispersion of the slurry.

[0033] In some embodiments of the present application, the flow direction of the first fluid-passing flow channel 7 and the flow direction of the third fluid-passing flow channel 9 are the same as the axial direction of the shaft core 4, and the flow direction of the second fluid-passing flow channel 8 is perpendicular to the axial direction of the shaft core 4.

[0034] In some embodiments of the present application, the width of the first fluid-passing channel 7 is 2 to 3 mm.

[0035] Specifically, the width of the first fluid passage 7 is the distance between the outer wall of the rotor outer cylinder 22 and the inner wall of the stator cylinder 30. The smaller this distance, i.e., the narrower the width of the first fluid passage 7, the greater the shear force in the first fluid passage 7 and the slower the rotation speed of the rotor unit 2. The greater the shear force, the higher the degree of dispersion of the slurry. The slower the rotation speed of the rotor unit 2, the lower the efficiency of dispersing the slurry.

[0036] In some embodiments of the present application, the width of the first fluid-passing channel 7 is 2 to 3 mm, and the dispersion speed of the rotor unit 2 is 10 to 30 m / s.

[0037] The dispersion speed of the rotor unit 2 is adjustable. In practical applications, the rotation speed of the rotor unit 2 can be adjusted according to the components, viscosity, and other characteristics of the slurry, thereby meeting the needs for shear dispersion efficiency of different slurries. The rotation speed of the rotor unit 2 can be adjusted by adjusting the rotation speed of the driving member 5 using a programmable logic controller (PLC). The method for adjusting the rotation speed of the rotor unit 2 is not a limitation of this application.

[0038] The standard sizes of the rotor unit 2 and the stator unit 3 can be changed depending on the properties of the slurry that flows in, thereby realizing the change of the width of the first fluid passage 7.

[0039] 4 , in some embodiments of the present application, the rotor cavity 6 has a cavity structure in which the rotor rib plate 23 serves as the bottom wall of the cavity, the outer wall of the rotor inner cylinder 21 serves as the inner peripheral wall of the cavity, and the inner wall of the rotor outer cylinder 22 serves as the outer peripheral wall of the cavity, with one end facing away from the rotor rib plate 23 being open. The rotor cavity 6 directly communicates with both the second fluid passage 8 and the third fluid passage 9.

[0040] In some embodiments of the present application, the rotor rib plate 23 is integrally molded in the center of the rotor inner cylinder 21 and the rotor outer cylinder 22, and rotor cavities 6 are formed on opposite sides of the rotor rib plate 23, and all of the rotor outer cylinders 22 corresponding to the two rotor cavities 6 are provided with fluid passage holes 221.

[0041] Specifically, for the rotor outer cylinder 22, rotor cavities 6 are formed on both opposing sides of the rotor rib plate 23, and fluid passage holes 221 are formed in the wall of the rotor outer cylinder 22 corresponding to the two rotor cavities 6 on both sides. After being centrifugally dispersed in the rotor cavities 6 at the leading end of the rotary rib plate 23, the slurry flows into the first fluid passage 7 and is shear-dispersed again. The slurry flows backward along the axis in the first fluid passage 7 and is blocked by the blocking portion 31, where turbulence occurs. Some of the slurry returns to the first fluid passage 7, and some of the slurry flows along the second fluid passage 8. Because the opening of the rotor cavity 6 at the rear end of the rotary rib plate 23 communicates with the second fluid passage 8, some of the slurry flows into the rotor cavity 6 at the rear end of the rotary rib plate 23, is centrifugally dispersed again, and then flows into the first fluid passage 7 again. A rotor cavity 6 is formed on both opposing sides of the rotary rib plate 23. This allows the slurry to be centrifuged back and forth, resulting in sufficient dispersion of the slurry and effectively improving the efficiency of centrifugal dispersion.

[0042] As can be seen, the rotor cavity 6 is a smooth cavity with no dead corners inside, thus avoiding accumulation of slurry in dead zones and thus not affecting the dispersion and flow of the slurry.

[0043] In some embodiments of the present application, there are a plurality of fluid passing holes 221, and the plurality of fluid passing holes 221 are arranged at uniform intervals along the circumferential direction of the rotor outer cylinder 22.

[0044] Specifically, the plurality of fluid passage holes 221 are uniformly spaced apart along the circumferential direction of the rotor outer cylinder 22. As a result, when the rotor unit 2 rotates, the slurry is dispersed from the rotor 6 into the first fluid passage 7. The plurality of fluid passage holes 221 can generate dense convection, which can quickly complete the dispersion of the slurry. The fluid passage holes 221 may be circular, elliptical, or rectangular. The specific shape of the fluid passage holes 221 is not a limitation of the present application.

[0045] According to some embodiments of the present application, the port of the barrel 1 is provided with a tip plate 11 suitable for connection to a screw extruder, and the tip plate 11 is sealedly connected to the outer barrel of the screw extruder via a fastening member.

[0046] Specifically, the cylinder 1 is sealed to an end plate at the discharge end of the screw extruder. Specifically, a tip plate 11 is fixedly mounted on one end of the cylinder 1. The tip plate 11 of the cylinder 1 and the discharge end of the screw extruder are fixedly connected by a number of connecting bolts. A sealing member is provided on the connection surface between the tip plate 11 and the discharge end of the screw extruder. This not only ensures good sealing at the connection point between the cylinder 1 and the discharge end of the screw extruder, but also prevents slurry leakage. Furthermore, the structure is simple and installation is convenient. This is advantageous in that it shortens the gap between the base end of the screw extruder and the rotor unit 2, thereby avoiding localized settling of the slurry due to a long gap, which could affect the product quality of the slurry.

[0047] According to some embodiments of the present application, a rear end plate 12 is provided on one side of the cylinder 1 near the slurry discharge port. A driving member 5 is hermetically connected to the rear end plate 12. The driving member 5 is a motor. A main shaft 51 extending toward the inside of the cylinder 1 is connected to an output port of the motor. The shaft core 4 is connected to the outer periphery of the main shaft 51. The cylinder 1 is hermetically connected to the main shaft 51.

[0048] Specifically, the driving member 5 is a motor. A main shaft 51 extending toward the inside of the cylindrical body 1 is connected to an output port of the motor. The shaft core 4 is fixedly connected to the outer periphery of the main shaft 51 and rotates as the main shaft 51 rotates. The cylindrical body 1 is connected to the main shaft 51 in a sealed manner. Specifically, a sealing structure is provided at the connection point between the rear end plate 12 of the cylindrical body 1 and the main shaft 51. This sealing structure can prevent the slurry from leaking out through a gap at the connection point between the cylindrical body 1 and the main shaft 51.

[0049] As can be seen, a medium heat exchange channel is provided in the cylindrical wall of the cylindrical body 1. The medium heat exchange channel has a medium inlet and a medium outlet. The medium heat exchange channel is provided in a spiral shape around the peripheral wall of the cylindrical body 1. Specifically, the medium heat exchange channel is a refrigerant channel. The refrigerant flows in from the medium inlet, flows through the refrigerant channel, and flows out from the medium outlet. The refrigerant can remove some of the heat from the cylindrical body 1, thereby cooling the slurry inside the cylindrical body 1. In addition, the medium heat exchange channel is a heat medium channel. The heat medium flows in from the medium inlet, flows through the heat medium channel, and flows out from the medium outlet. The heat medium can heat the slurry inside the cylindrical body 1.

[0050] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation mode. Those skilled in the art may make other different types of changes or variations based on the above description. It is not possible to list all embodiments here, and it is not necessary. Any obvious changes or variations derived from these remain within the scope of protection of the present invention. [Explanation of symbols]

[0051] 1...cylinder, 2...rotor unit, 3...stator unit, 4...shaft core, 5...driving member, 6...rotor cavity, 7...first fluid passage, 8...second fluid passage, 9...third fluid passage, 11...front plate, 12...rear end plate, 21...rotor inner cylinder, 22...rotor outer cylinder, 23...rotor rib plate, 221...fluid passage hole, 30...stator cylinder, 31...blocking portion, 51...main shaft

Claims

1. A centrifugal disperser, The rotor assembly includes a cylindrical body (1), a plurality of rotor units (2), and a plurality of stator units (3), The cylindrical body (1) is connected to the discharge end of the screw extruder, and a shaft core (4) that is rotated by the driving member (5) is provided within the cylindrical body (1). The rotor unit (2) includes a rotor inner cylinder (21), a rotor outer cylinder (22), and a rotor rib plate (23) connected between the rotor inner cylinder (21) and the rotor outer cylinder (22), the rotor inner cylinder (21) is fixedly sleeved on the shaft core (4) and rotates together 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 rib plate (23), a plurality of fluid passage holes (221) are provided in the cylindrical wall of the rotor outer cylinder (22), and the plurality of fluid passage holes (221) are in communication with the rotor cavity (6), The plurality of stator units (3) and the plurality of rotor units (2) are alternately arranged along the axial direction of the shaft core (4), and the stator unit (3) includes a stator cylinder (30) fixedly connected to the inner wall of the cylinder (1), and a blocking portion (31) extending from the inner wall of the stator cylinder (30) toward a gap between two adjacent rotor units (2), A first fluid passage (7) for shearing a 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 fluid passage (7) is in communication with the plurality of fluid passage holes (221). A centrifugal disperser characterized by:

2. A second fluid passage (8) for shearing the slurry is formed between the opposing side walls of the blocking portion (31) and the side wall of the rotor outer cylinder (22) facing the blocking portion (31), and a third fluid passage (9) for shearing the slurry is formed between the inner wall of the blocking portion (31) facing the axis (4) and the outer wall of the rotor inner cylinder (21), the first fluid passage (7), the second fluid passage (8), and the third fluid passage (9) are sequentially connected to each other, and the third fluid passage (9) is connected to the two second fluid passages (8) on both sides of the blocking portion (31) corresponding to the third fluid passage 9.

2. The centrifugal disperser according to claim 1, wherein the disperser is a centrifugal disperser.

3. In the radial direction of the axis (4), the distance between the inner wall of the blocking portion (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).

2. The centrifugal disperser according to claim 1, wherein the disperser is a centrifugal disperser.

4. The flow direction of the first fluid passage (7) and the flow direction of the third fluid passage (9) are the same as the axial direction of the shaft core (4), and the flow direction of the second fluid passage (8) is perpendicular to the axial direction of the shaft core (4).

3. The centrifugal disperser according to claim 2, wherein the disperser is a centrifugal disperser.

5. The width of the first fluid-passing channel (7) is 2 to 3 mm; 5. The centrifugal disperser according to claim 4, wherein the disperser is a centrifugal disperser.

6. The rotor cavity (6) has a cavity structure in which the rotor rib plate (23) serves as a bottom wall of the cavity, the outer wall of the rotor inner cylinder (21) serves as an inner peripheral wall of the cavity, and the inner wall of the rotor outer cylinder (22) serves as an outer peripheral wall of the cavity, and one end facing away from the rotor rib plate (23) is open, and the rotor cavity (6) directly communicates with both the second fluid passage (8) and the third fluid passage (9).

3. The centrifugal disperser according to claim 2, wherein the disperser is a centrifugal disperser.

7. The rotor rib plate (23) is integrally formed in the center of the rotor inner cylinder (21) and the rotor outer cylinder (22), and the rotor cavities (6) are formed on both opposing sides of the rotor rib plate (23), and the fluid passage holes (221) are all provided in the rotor outer cylinder (22) corresponding to the two rotor cavities (6).

7. The centrifugal disperser according to claim 6,

8. The fluid passage holes (221) are plural, and the plural fluid passage holes (221) are arranged at uniform intervals along the circumferential direction of the rotor outer cylinder (22). The centrifugal disperser according to claim 7 .

9. The port of the cylinder (1) is provided with a tip plate (11) suitable for connection with the screw extruder, and the tip plate (11) is sealed and connected to the outer cylinder of the screw extruder via a fastening member.

2. The centrifugal disperser according to claim 1, wherein the disperser is a centrifugal disperser.

10. The dispersion speed of the rotor unit (2) is 10 to 30 m / s.

2. The centrifugal disperser according to claim 1, wherein the disperser is a centrifugal disperser.

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