Slurry dispersing device
By using an internal dispersion and external conveying structure, the problems of structural redundancy and low efficiency in existing dispersion devices are solved, achieving efficient dispersion and conveying, reducing cavitation effects, and extending the service life of stators and rotors.
Patent Information
- Application Number
- CN202423209724.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Existing distributed devices separate the distributed functional module and the conveying functional module, resulting in structural redundancy and low efficiency. The arrangement of conveying on the inside and distributing on the outside reduces the conveying efficiency and increases the cavitation effect, affecting the service life of the stator and rotor.
The structure adopts an internal dispersion and external conveying arrangement. The stator ring is provided with dispersion holes and the stator ring is provided with conveying blades. The shearing rotor has shearing blades on the inside and conveying blades on the outside. The shearing rotor is provided with a substrate flow port. The shearing blades have different inclination angles. The arch-breaking head is used for powder-liquid mixing. The rotor components are sleeved on the main shaft, and the mixing chamber and dispersion chamber are connected.
It improves dispersion and conveying efficiency, reduces cavitation effects, and extends the service life of stators and rotors.
Smart Images
Figure CN223654891U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to pulping equipment technical field especially a slurry dispersing device. BACKGROUND
[0002] The pulping equipment mainly mixes two or more than two materials of different forms to obtain slurry. In the production process of the slurry, a dispersing device is needed to disperse the slurry.
[0003] The existing dispersing device usually separates the dispersing function module and the conveying function module, which is not only redundant in structure but also low in efficiency. At present, some dispersing devices integrate the dispersing function and the conveying function into one module. The structure arrangement of this integrated structure is usually inside conveying and outside dispersing. Using this structure arrangement, the conveying efficiency is reduced, the cavitation effect is increased, and the service life of the stator and rotor is affected. SUMMARY
[0004] In view of the above-mentioned shortcomings of the existing dispersing device, the applicant provides a slurry dispersing device with reasonable structure, which adopts inside dispersing and outside conveying structure arrangement to improve the conveying efficiency, reduce the cavitation effect, and prolong the service life of the stator and rotor.
[0005] The technical scheme adopted by the utility model is as follows:
[0006] A slurry dispersing device, a dispersing conveying cavity is arranged in the shell part, and a stator part and a rotor part are arranged in the dispersing conveying cavity;
[0007] A stator ring is arranged on the stator part, a plurality of dispersing holes are arranged on the stator ring, the stator ring divides the dispersing conveying cavity into an outside conveying area and an inside dispersing area, and the dispersing holes communicate the conveying area and the dispersing area;
[0008] The rotor part includes a conveying rotor and a shearing rotor, and the shearing rotor is fixed on the conveying rotor;
[0009] A plurality of conveying blades are arranged on the conveying rotor, the conveying blades are arranged in the conveying area and located outside the stator ring;
[0010] The shearing rotor is arranged in the dispersing area and located inside the stator ring; a base plate is arranged on the shearing rotor, a plurality of flow passages are arranged on the base plate, the base plate divides the dispersing area into an upper dispersing area and a lower dispersing area, the upper dispersing area and the lower dispersing area are communicated through the flow passages on the base plate, and a plurality of shearing blades are arranged on the top surface and the bottom surface of the base plate, the upper shearing blades are located in the upper dispersing area, and the lower shearing blades are located in the lower dispersing area.
[0011] As a further improvement of the above technical scheme:
[0012] The dispersion holes of the stator ring include upper holes and lower holes, the upper holes have a larger diameter than the lower holes, the upper holes communicate the upper dispersion area and the dispersion conveying cavity, and the lower holes communicate the lower dispersion area and the dispersion conveying cavity.
[0013] The upper shear blades and the lower shear blades of the shear rotor are inclined rearward along the rotation direction from outside to inside.
[0014] The inclination angle of the upper shear blades is larger than that of the lower shear blades, the upper shear blades have an included angle β of 25-45° with a radial line, the lower shear blades have an included angle γ of 10-25° with the radial line, and the number of the upper shear blades is less than that of the lower shear blades.
[0015] The base plate of the shear rotor is provided with a shaft sleeve.
[0016] The conveying blades of the conveying rotor are inclined rearward along the rotation direction from outside to inside, and the conveying blades have an included angle α of 10-20° with a radial line.
[0017] The conveying rotor is provided with a bottom plate, the conveying blades are arranged on the bottom plate, and a central through hole is formed in the bottom plate; the central through hole is located on the inner side of the lower shear blades, and the diameter of the central through hole is less than or equal to the radius from the inner side edge of the lower shear blades to the center point.
[0018] The rotor component further comprises an arch breaking head, which is arranged at the center of the top surface of the base plate of the shear rotor; the arch breaking head is a tapered head.
[0019] The stator ring of the stator component is arranged on a cover plate, the cover plate is arranged on the top of the housing component and is fixed to the housing component; the cover plate is provided with a powder inlet, the powder inlet communicates with the dispersion conveying cavity, and the powder inlet is opposite to the arch breaking head.
[0020] The housing component is further provided with a mixing cavity, the dispersion conveying cavity and the mixing cavity are arranged in a vertical manner and are communicated through a flow passage; the housing component is provided with a liquid inlet communicating with the mixing cavity and a discharge outlet communicating with the dispersion conveying cavity; the rotor component is sleeved on the main shaft component, the main shaft component passes through the mixing cavity and is arranged outside the housing component, and the main shaft component is sleeved with a spacer sleeve on the shaft part located in the mixing cavity.
[0021] The beneficial effects of the utility model are as follows:
[0022] The utility model adopts the structure arrangement of inside dispersion and outside conveying, the shear rotor is arranged on the inside of the stator ring, the conveying rotor is arranged on the outside of the stator ring, the slurry is fully sheared and dispersed in the inside of the stator ring by the shear rotor, and then is pushed outward by the conveying rotor on the outside of the stator ring, which not only improves the dispersion efficiency and conveying efficiency, but also reduces the cavitation effect and improves the service life of the stator and rotor. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1The utility model discloses a structure schematic drawing.
[0024] Figure 2 For Figure 1 The sectional view of A-A in the drawing, the arrow shows the rotation direction.
[0025] Figure 3 For Figure 1 The sectional view of B-B in the drawing, the arrow shows the rotation direction.
[0026] Figure 4 The structure schematic drawing of stator part.
[0027] Figure 5 The explosion view of rotor part.
[0028] Figure 6 The structure schematic drawing of shearing rotor.
[0029] In the drawing: 1, the shell part;11, dispersion conveying cavity;111, conveying area;112, upper dispersion area;113, lower dispersion area;12, mixing cavity;13, overflow passage;14, liquid inlet;15, discharge port;16, spacer sleeve;
[0030] 2, stator part;21, cover plate;22, powder inlet;23, stator ring;24, dispersion hole;241, upper layer hole;242, lower layer hole;
[0031] 10, rotor part;3, conveying rotor;31, bottom plate;311, central through hole;32, conveying blade;4, shearing rotor;41, base plate;42, shaft sleeve;43, upper shearing blade;44, lower shearing blade;45, overflow port;5, arch breaking head;
[0032] 20, main shaft part. Specific embodiments
[0033] The specific embodiments of the utility model will be described below in combination with the drawings.
[0034] As Figures 1 to 3 The utility model discloses a shell part 1 is equipped with dispersion conveying cavity 11 and mixing cavity 12, and dispersion conveying cavity 11 and mixing cavity 12 are arranged up and down, and two cavity bodies are communicated through overflow passage 13.Shell part 1 lower part is equipped with the liquid inlet 14 of communication mixing cavity 12, and shell part 1 upper part is equipped with the discharge port 15 of communication dispersion conveying cavity 11.
[0035] The stator part 2 is fixed on the shell part 1, and the rotor part 10 is sleeved on the main shaft part 20, which vertically penetrates through the mixing cavity 12 and the bottom of the shell part 1. The main shaft part 20 is sleeved with a spacer 16 on the shaft part of the mixing cavity 12, which protects the main shaft part 20 from contacting with the material.
[0036] As shown in Figure 1 , Figure 4 , the stator part 2 comprises a cover plate 21, which is sleeved on the top of the shell part 1 and is fixed on the shell part 1 by fasteners. The cover plate 21 is centrally provided with a powder inlet 22, which communicates with the dispersion conveying cavity 11 and vertically extends upward. The bottom surface of the cover plate 21 is vertically downwardly provided with a stator ring 23, which extends into the dispersion conveying cavity 11 and divides the dispersion conveying cavity 11 into an outer conveying area 111 and an inner dispersion area. The stator ring 23 is provided with a plurality of dispersion holes 24, which communicate the conveying area 111 and the dispersion area. The dispersion holes 24 comprise upper holes 241 and lower holes 242, the diameter of the upper holes 241 is larger than that of the lower holes 242. Since the upper holes 241 are closer to the powder inlet 22, the upper material flowing through the upper holes 241 is relatively more viscous. Therefore, the upper holes 241 are designed to be larger in diameter, so that the upper material can more easily pass through the upper holes 241. In addition, the upper holes 241 are designed to be larger in diameter, and the lower holes 242 are designed to be smaller in diameter, so that the pressure can be balanced, the impact and cavitation on the stator part 2 can be reduced, and the pressure in the dispersion conveying cavity 11 can be more uniform.
[0037] As shown in Figure 1 , Figure 5 , the rotor part 10 comprises a conveying rotor 3, a shearing rotor 4, and an arch-breaking head 5. The shearing rotor 4 is fixed on the conveying rotor 3 by fasteners, and the arch-breaking head 5 is fixed on the main shaft part 20 by fasteners.
[0038] As shown in Figure 5 , the conveying rotor 3 comprises a bottom plate 31, which is centrally provided with a central through hole 311. The top surface of the bottom plate 31 is upwardly provided with a plurality of conveying blades 32, which are uniformly arranged in the circumferential direction. Figure 2 , Figure 3 The conveying blades 32 are inclined rearward along the rotation direction from the outside to the inside, that is, the inclination direction of the conveying blades 32 from the outside to the inside is opposite to the rotation direction, and the conveying blades 32 have an included angle α with the radial line, which is 10-20°. The conveying blades 32 are inclined, which can assist in discharging the material during the rotation of the device, thereby reducing the local pressure loss and avoiding the accumulation of dead material. Figures 1 to 3As shown, the bottom plate 31 of the conveying rotor 3 separates the dispersion conveying cavity 11 from the mixing cavity 12, and the central through hole 311 constitutes part of the flow passage 13 and communicates the dispersion conveying cavity 11 with the mixing cavity 12. The conveying blades 32 of the conveying rotor 3 extend into the conveying area 111 and are located outside the stator ring 23.
[0039] As shown in the figures, Figure 5 , Figure 6 The shearing rotor 4 comprises a base plate 41, the central part of which extends downward and vertically and is provided with a shaft sleeve 42, which is sleeved on the main shaft component 20. The top surface of the base plate 41 extends upward and is provided with a plurality of upper shearing blades 43, which are uniformly arranged in the circumferential direction. The bottom surface of the base plate 41 extends downward and is provided with a plurality of lower shearing blades 44, which are uniformly arranged in the circumferential direction. A plurality of flow ports 45 are formed on the outer side plate surface of the base plate 41. As shown in the figures, Figure 2 , Figure 3 The upper shearing blades 43 and the lower shearing blades 44 are inclined rearward along the rotation direction from outside to inside, that is, the inclination direction of the conveying blades 32 from outside to inside is opposite to the rotation direction. The inclination angle of the upper shearing blades 43 is greater than that of the lower shearing blades 44. The upper shearing blades 43 have an included angle β with the radial line, and the included angle β is 25-45°. The lower shearing blades 44 have an included angle γ with the radial line, and the included angle γ is 10-25°. The number of the upper shearing blades 43 is less than that of the lower shearing blades 44, which can balance the pressure of the shearing rotor 4 and make the upper layer cavity have a larger contact area to ensure the dispersion effect. Figures 1 to 3 As shown in the figures, the shearing rotor 4 is arranged in the dispersion area of the dispersion conveying cavity 11 and is located inside the stator ring 23. The base plate 41 of the shearing rotor 4 divides the dispersion area into an upper dispersion area 112 and a lower dispersion area 113. The upper shearing blades 43 are located in the upper dispersion area 112, and the lower shearing blades 44 are located in the lower dispersion area 113. The upper dispersion area 112 and the lower dispersion area 113 are communicated through the flow ports 45 on the base plate 41. The upper layer holes 241 of the stator ring 23 communicate the upper dispersion area 112 with the dispersion conveying cavity 11, and the lower layer holes 242 of the stator ring 23 communicate the lower dispersion area 113 with the dispersion conveying cavity 11. The lower shearing blades 44 of the shearing rotor 4 are arranged on the bottom plate 31 of the conveying rotor 3 and are located outside the central through hole 311 without extending into the central through hole 311. The radius from the inside edge of the lower shearing blades 44 to the center point is greater than or equal to the hole diameter of the central through hole 311, which prevents the lower shearing blades 44 from extending into the central through hole 311 and reducing the flow area of the central through hole 311, thereby ensuring the flow capacity of the central through hole 311.
[0040] As shown in the figures, Figure 1 , Figure 5As shown, the arch breaking head 5 is a tapered head, which is arranged at the central top surface of the base plate 41 of the shearing rotor 4, at the interface between the powder and the liquid, and directly opposite the powder inlet 22, so as to scatter the powder input by the powder inlet 22 and destroy the surface tension of the liquid surface, so that the powder and the liquid can be mixed more easily.
[0041] In actual use, the driving mechanism drives the rotor component 10 to rotate at high speed through the main shaft component 20, the liquid material is input from the liquid inlet 14, flows over the mixing cavity 12 and enters the dispersion conveying cavity 11, the powder material is input from the powder inlet 22 into the upper dispersion area 112 under the negative pressure generated by the rotor component 10 and is preliminarily mixed with the liquid material into slurry, part of the slurry is sheared by the upper shearing blade 43 of the shearing rotor 4, enters the conveying area 111 through the upper layer hole 241 of the stator ring 23, part of the slurry enters the lower dispersion area 113 from the overflow port 45 of the shearing rotor 4, is sheared by the lower shearing blade 44, enters the conveying area 111 through the lower layer hole 242 of the stator ring 23, and the slurry in the conveying area 111 is pushed to the discharge port 15 by the conveying blade 32 of the conveying rotor 3 and is output from the discharge port 15, and the slurry output from the discharge port 15 is sent into the liquid inlet 14 again, so as to be circulated and repeated until the dispersion of the slurry is completed and qualified slurry is obtained.
[0042] The utility model adopts the structure arrangement of inside dispersion and outside conveying, sets the shearing rotor 4 inside the stator ring 23 and sets the conveying rotor 3 outside the stator ring 23, and the slurry is pushed outward by the conveying rotor 3 outside the stator ring 23 after being sheared and dispersed sufficiently by the shearing rotor 4 inside the stator ring 23, which not only improves the dispersion efficiency and the conveying efficiency, but also reduces the cavitation effect and improves the service life of the stator and the rotor.
[0043] The above description is the explanation of the utility model, not the limitation of the utility model, and the utility model can be modified in any form without departing from the spirit of the utility model.
Claims
1. A slurry dispersion device, wherein a dispersion conveying chamber (11) is provided inside a housing component (1), and a stator component (2) and a rotor component (10) are disposed inside the dispersion conveying chamber (11); characterized in that: The stator component (2) is provided with a stator ring (23), and a plurality of dispersion holes (24) are opened on the stator ring (23). The stator ring (23) divides the dispersion conveying cavity (11) into an outer conveying area (111) and an inner dispersion area. The dispersion holes (24) connect the conveying area (111) and the dispersion area. The rotor assembly (10) includes a conveying rotor (3) and a shearing rotor (4), with the shearing rotor (4) fixed on the conveying rotor (3); The conveying rotor (3) is provided with several conveying blades (32), which are located in the conveying area (111) and outside the stator ring (23); The shear rotor (4) is located in the dispersion area and inside the stator ring (23); a base plate (41) is provided on the shear rotor (4), and several flow ports (45) are opened on the base plate (41). The base plate (41) divides the dispersion area into an upper dispersion area (112) and a lower dispersion area (113). The upper dispersion area (112) and the lower dispersion area (113) are connected through the flow ports (45) on the base plate (41); several shear blades are provided on the top and bottom surfaces of the base plate (41), the upper shear blade (43) is located in the upper dispersion area (112), and the lower shear blade (44) is located in the lower dispersion area (113).
2. The slurry dispersion device according to claim 1, characterized in that: The dispersion hole (24) of the stator ring (23) includes an upper hole (241) and a lower hole (242). The diameter of the upper hole (241) is larger than that of the lower hole (242). The upper hole (241) connects the upper dispersion region (112) and the dispersion conveying cavity (11), and the lower hole (242) connects the lower dispersion region (113) and the dispersion conveying cavity (11).
3. The slurry dispersion device according to claim 1, characterized in that: The upper shear blade (43) and lower shear blade (44) of the shear rotor (4) are inclined backward from the outside to the inside along the rotation direction.
4. The slurry dispersion device according to claim 3, characterized in that: The tilt angle of the upper shear blade (43) is greater than that of the lower shear blade (44). The upper shear blade (43) has an angle β of 25-45° with the radial line, and the lower shear blade (44) has an angle γ of 10-25° with the radial line. The number of upper shear blades (43) is less than the number of lower shear blades (44).
5. The slurry dispersion device according to claim 1, characterized in that: A bushing (42) is provided on the base plate (41) of the shear rotor (4).
6. The slurry dispersion device according to claim 1, characterized in that: The conveying blades (32) of the conveying rotor (3) are inclined backward along the rotation direction from the outside to the inside, and the conveying blades (32) have an angle α of 10-20° with the radial line.
7. The slurry dispersion apparatus according to claim 1, characterized in that: The conveying rotor (3) is provided with a base plate (31), and the conveying blade (32) is provided on the base plate (31). A central through hole (311) is provided on the base plate (31). The central through hole (311) is located inside the lower shear blade (44), and the diameter of the central through hole (311) is less than or equal to the radius from the inner side of the lower shear blade (44) to the center point.
8. The slurry dispersion apparatus according to claim 1, characterized in that: The rotor component (10) also includes an arch-breaking head (5), which is located at the center of the top surface of the base plate (41) of the shear rotor (4); the arch-breaking head (5) is a cone.
9. The slurry dispersion apparatus according to claim 1, characterized in that: The stator ring (23) of the stator component (2) is set on the cover plate (21), the cover plate (21) is placed on the top of the housing component (1) and fixed to the housing component (1); the cover plate (21) is provided with a powder inlet (22), the powder inlet (22) is connected to the dispersion conveying chamber (11), and the powder inlet (22) is directly opposite the arch breaking head (5).
10. The slurry dispersion apparatus according to claim 1, characterized in that: The housing component (1) is also provided with a mixing chamber (12), the dispersion conveying chamber (11) and the mixing chamber (12) are arranged vertically and connected through the flow channel (13); the housing component (1) is provided with an inlet (14) that connects to the mixing chamber (12) and an outlet (15) that connects to the dispersion conveying chamber (11); the rotor component (10) is sleeved on the main shaft component (20), the main shaft component (20) passes through the mixing chamber (12) and exits from the housing component (1), and the main shaft component (20) is provided with a spacer (16) on the shaft part located in the mixing chamber (12).