Slurry solid-liquid mixing system

Abstract

The present application provides a kind of slurry solid-liquid mixing system, it includes: mixing box, the open is provided with on the upper end surface of the mixing box, the bottom of the mixing box is fixedly connected with the discharge pipe that communicates inside and outside it;First rotary drum, the inner bottom surface of the mixing box is rotatably connected with the first rotary drum;Second rotary drum, the second rotary drum is coaxially arranged in the first rotary drum and there is a gap between the drum wall of each other, the shaft rod that extends to the mixing box outside by the open is further fixedly connected in the second rotary drum, the connecting rod is further fixedly connected between the shaft rod and the second rotary drum;First drive motor, for driving the first rotary drum;Second drive motor, for driving the second rotary drum.The present application solves the problem that solid component can be agglomerated and then removed in the prior art, thereby causing slurry component change.

Description

Technical Field

[0001] This invention relates to the field of auxiliary equipment for slurry processing, and more particularly to a slurry solid-liquid mixing system. Background Technology

[0002] In slurry processing, stirring is one of the key steps (i.e., solid-liquid mixing). For example, when processing color pastes, stirring is necessary to ensure uniform mixing of liquid and solid components. In existing technologies, stirring is generally performed using a stirring device. Specifically, the stirring device includes a stirring tank and stirring components housed within the tank. A motor is also located outside the tank to drive the stirring components. Materials (including liquid and solid components) are added to the stirring tank, and the motor is started to activate the stirring components. After a period of stirring, the mixture is discharged through a discharge pipe located at the bottom of the tank. However, in actual operation, some solid components may clump together, making them difficult to disperse. This results in clumps in the slurry after stirring, requiring filtration to remove them (although the clumps are removed, they are still components, thus altering the composition of the slurry). Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a slurry solid-liquid mixing system that solves the problem that solid components may agglomerate and need to be removed, causing changes in slurry composition.

[0004] According to an embodiment of the present invention, a slurry solid-liquid mixing system includes:

[0005] A mixing tank body, wherein the upper end face of the mixing tank body is provided with an opening, and the bottom of the mixing tank body is fixedly connected with a discharge pipe that communicates with the inside and outside of it;

[0006] The first rotating drum is rotatably connected to the inner bottom surface of the mixing tank.

[0007] The second rotating drum is coaxially arranged inside the first rotating drum with a gap between their walls. A shaft extending out of the mixing tank body through the opening is also fixedly connected inside the second rotating drum. A connecting rod is also fixedly connected between the shaft and the second rotating drum.

[0008] A first drive motor is used to drive the first rotating drum;

[0009] The second drive motor is used to drive the second rotating drum;

[0010] The first rotating drum and the second rotating drum are respectively provided with a first sieve hole and a second sieve hole located on the lower side wall, and the diameter of the first sieve hole is smaller than the diameter of the second sieve hole.

[0011] In the above embodiments, the material can be fed into the second rotating drum through an open opening, stirred inside the second rotating drum, and then enters the space between the first and second rotating drums through the second sieve holes. The first and second rotating drums can rotate in opposite directions or at different speeds under the drive of the first and second drive motors, so that the material can be squeezed and ground between them. If there are clumps, they can be easily dispersed. Then, the material enters the outer side through the first sieve holes and is finally discharged through the discharge pipe. The process avoids the formation of clumps. Therefore, it solves the problem in the prior art that solid components may clump together and need to be removed, which may cause changes in the composition of the slurry.

[0012] Furthermore, an upper partition and a lower partition are fixedly connected inside the mixing tank, surrounding the first rotating cylinder. The first rotating cylinder is slidably engaged with both the upper and lower partitions. The first and second rotating cylinders are respectively provided with a first liquid passage hole and a second liquid passage hole located between the upper and lower partitions. An inlet pipe is also fixedly connected to the mixing tank, with one end of the inlet pipe communicating with the upper and lower partitions and the other end communicating with the outside of the mixing tank.

[0013] Furthermore, both the first sieve hole and the second sieve hole are located below the lower partition plate.

[0014] Furthermore, the upper partition is also fixedly connected to a sliding cylinder located above it and in sliding contact with the first rotating cylinder.

[0015] Furthermore, a support box is fixedly connected to the upper end of the sliding cylinder, and the end of the support box away from the upper partition is fixedly connected to the mixing tank body, with the orthographic projection of the opening located inside the support box. A through frame is provided at the bottom of the support box, and a support ring that slides and overlaps with the outer periphery above the through frame is fixedly connected to the upper end of the second rotating cylinder.

[0016] Furthermore, the second drive motor is fixedly installed on the upper end of the mixing tank and its shaft is fixedly connected to the first drive shaft. The first drive shaft extends rotatably into the support box and is fixedly connected to the drive gear. The outer ring wall of the support ring is provided with an annular toothed belt and the annular toothed belt meshes with the drive gear.

[0017] Furthermore, a positioning ring is fixedly connected to the bottom surface of the support box, surrounding the through frame, and a positioning groove is recessed on the lower ring surface of the support ring for the positioning ring to slide into.

[0018] Furthermore, a support platform is fixedly connected to the bottom surface of the mixing tank, the top surface of the support platform is spherical, and the lower end of the first rotating cylinder is in sliding contact with the top surface of the support platform.

[0019] Furthermore, the first drive motor is fixedly installed at the bottom of the mixing tank and its shaft is fixedly connected to a second drive shaft. The second drive shaft extends rotatably to the top of the support platform and is fixedly connected to the bottom of the first rotating drum.

[0020] Furthermore, the upper end of the second drive shaft is fixedly extended into the first rotating drum, and the bottom of the second rotating drum is recessed to accommodate the second drive shaft located inside the first rotating drum.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The arrangement of the first and second rotating drums allows the material to be crushed and dispersed between them, preventing agglomerates from entering the slurry and avoiding the formation of agglomerates. This solves the problem in the prior art where solid components may agglomerate and need to be removed, causing changes in the slurry composition. Attached Figure Description

[0023] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0024] Figure 2 is a magnified schematic diagram of the local structure at point A in Figure 1;

[0025] Figure 3 is a magnified schematic diagram of the local structure at point B in Figure 1;

[0026] Figure 4 is a magnified schematic diagram of the local structure at point C in Figure 1;

[0027] In the above attached figures:

[0028] 1. Mixing tank body; 2. Discharge pipe; 3. First rotating drum; 4. Second rotating drum; 5. Shaft; 6. Connecting rod; 7. First drive motor; 8. Second drive motor; 9. First sieve hole; 10. Second sieve hole; 11. Mixing blade; 12. Third drive motor; 13. Upper partition plate; 14. Lower partition plate; 15. First liquid passage hole; 16. Second liquid passage hole; 17. Liquid inlet pipe; 18. Slurry pump; 19. Connecting pipe; 20. Three-way valve; 21. Sliding cylinder; 22. Support box; 23. Support ring; 24. First drive shaft; 25. Drive gear; 26. Annular toothed belt; 27. Positioning ring; 28. Support platform; 29. ​​Second drive shaft; 30. Cover; 31. Outlet cylinder; 32. Guide pipe. Detailed Implementation

[0029] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" 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 this invention and 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 this invention.

[0031] In an exemplary embodiment, as shown in Figures 1 and 2, this embodiment provides a slurry solid-liquid mixing system, which includes:

[0032] A mixing tank 1, the upper end face of which is provided with an opening, and a discharge pipe 2 connecting the inside and outside of which is fixedly connected to the bottom of the mixing tank 1;

[0033] The first rotating drum 3 is rotatably connected to the inner bottom surface of the mixing tank 1;

[0034] The second rotating drum 4 is coaxially arranged inside the first rotating drum 3 with a gap between their walls. The second rotating drum 4 is also fixedly connected to a shaft 5 that extends through the opening to the outside of the mixing tank 1. A connecting rod 6 is also fixedly connected between the shaft 5 and the second rotating drum 4.

[0035] The first drive motor 7 is used to drive the first rotating drum 3;

[0036] The second drive motor 8 is used to drive the second rotating drum 4;

[0037] The first rotating drum 3 and the second rotating drum 4 are respectively provided with a first sieve hole 9 and a second sieve hole 10 located on the lower end side wall, and the diameter of the first sieve hole 9 is smaller than the diameter of the second sieve hole 10.

[0038] In the above embodiments, the material can be fed into the second rotating drum 4 through an open opening, stirred inside the second rotating drum 4, and then enter the space between the first rotating drum 3 and the second rotating drum 4 through the second screen hole 10. The first rotating drum 3 and the second rotating drum 4 can rotate in opposite directions or at different speeds under the drive of the first drive motor 7 and the second drive motor 8, so that the material can be squeezed and ground between the two. If there are clumps, they can be dispersed smoothly. Then, the material enters the outer side through the first screen hole 9 and is finally discharged through the discharge pipe 2. The process avoids the formation of clumps. Therefore, it solves the problem in the prior art that solid components may clump together and need to be removed, which may cause changes in the composition of the slurry.

[0039] As shown in Figures 1 and 2, in the detailed implementation scheme, several stirring blades 11 are arranged around the first rotating drum 3 inside the mixing tank 1. These stirring blades 11 stir and mix the material again inside the mixing tank 1, so that the material continues to be stirred and mixed after passing through the second sieve hole 10 and the first sieve hole 9, in order to form a uniform slurry, which is finally discharged through the discharge pipe 2. Specifically, the stirring blades 11 can be arranged on the inner side wall of the mixing tank 1, and a third drive motor 12 is installed outside the mixing tank 1 to drive the stirring blades 11. In this way, when the third drive motor 12 is running, the stirring blades 11 can stir the material, and at the same time, the liquid components can move between the space outside the first rotating drum 3 and the space inside the second rotating drum 4 in the mixing tank 1, thereby further improving the material mixing efficiency.

[0040] As shown in Figures 1 and 3, the mixing tank 1 is further fixedly connected to an upper partition 13 and a lower partition 14 surrounding the first rotating drum 3. The first rotating drum 3 is slidably engaged with the upper partition 13 and the lower partition 14. The first rotating drum 3 and the second rotating drum 4 are respectively provided with a first liquid passage hole 15 and a second liquid passage hole 16 located between the upper partition 13 and the lower partition 14. The mixing tank 1 is also fixedly connected to an inlet pipe 17, one end of which is connected to the upper partition 13 and the lower partition 14, and the other end is connected to the outside of the mixing tank 1. Solid components can be first fed into the second rotating drum 4 through the open end, while liquid components can be introduced through the inlet pipe 17 between the upper partition 13 and the lower partition 14, and then enter the second rotating drum 4 through the first liquid passage 15 and the second liquid passage 16 to mix with the solid components. During the operation of the first drive motor 7, the second drive motor 8, and the third drive motor 12, the liquid components first mix with the solid components and then enter the outer mixing chamber 1, and then circulate back and forth between the outer space and the second rotating drum 4 until they are fully mixed, and finally pass through the discharge pipe 2. During operation, liquid components can partially pass through the gap between the lower partition 14 and the first rotating drum 3 and directly enter the outer space (similarly, they can also first enter the gap between the first rotating drum 3 and the second rotating drum 4). However, the diameters of the first liquid passage hole 15 and the second liquid passage hole 16 are larger, allowing most of the liquid components to directly enter the second rotating drum 4. The liquid components in the gap can assist in flushing within the gap or mix more thoroughly with the agglomerates entering the gap, which is beneficial for crushing the agglomerates and thus further improving the overall efficiency.

[0041] In a further detailed implementation scheme, as shown in Figure 1, a slurry pump 18 located outside the mixing tank 1 is also included. The pump inlet pipe of the slurry pump 18 is connected to the discharge pipe 2, and the pump outlet pipe is connected to a connecting pipe 19. The connecting pipe 19 extends into the mixing tank 1 and is fixedly connected to the upper partition 13. Simultaneously, the connecting pipe 19 also communicates with the space between the upper partition 13 and the lower partition 14. This allows the slurry pump 18 to pump the liquid outside the first rotating drum 3 to the space between the upper partition 13 and the lower partition 14, then partially enters the second rotating drum 4, and then re-enters the first rotating drum 3, forming a circulation. This allows for simultaneous mixing and... The liquid is circulated, thus mixing the materials more efficiently and ultimately forming a more uniform slurry. The pump outlet pipe of the slurry pump 18 is also connected to a three-way valve 20. Two ports of the three-way valve 20 are connected to the pump outlet pipe and the connecting pipe 19, respectively, and the other port is connected to a guide pipe 32 for finally exporting the formed slurry. More specifically, the first screen hole 9 and the second screen hole 10 are both located below the lower partition plate 14, so that the material will not enter the space between the upper partition plate 13 and the lower partition plate 14 through the first screen hole 9 and the second screen hole 10, thus allowing the material to smoothly enter the space of the outer mixing tank 1.

[0042] In a further exemplary embodiment, as shown in Figures 1 and 4, the upper partition 13 is also fixedly connected to a sliding cylinder 21 located above it and in sliding contact with the first rotating drum 3. The sliding cylinder 21, located above the upper partition 13, can block the liquid, preventing the liquid from entering the upper partition 13 through the gap between the upper partition 13 and the first rotating drum 3. At the same time, the sliding plate also provides a rotation limit for the upper end of the first rotating drum 3 on the outside, preventing the first rotating drum 3 from shaking during rotation. In a more detailed exemplary embodiment, the upper end of the sliding cylinder 21 is also fixedly connected to a support box 22. The end of the support box 22 facing away from the upper partition 13 is also fixedly connected to the stirring tank body 1, and the orthographic projection of the opening is located inside the support box 22. The bottom of the 22 is provided with a through frame, and the upper end of the second rotating cylinder 4 is also fixedly connected with a support ring 23 that slides and overlaps with the outer periphery of the through frame. The upper end of the sliding cylinder 21 directly separates the space above the upper partition 13 from the first rotating cylinder 3, so that liquid will not enter the space. At the same time, the support box 22 provides rotational support for the upper end of the second rotating cylinder 4, which enables the second rotating cylinder 4 to rotate smoothly, so that the overall structure can operate more smoothly. Specifically, the support ring 23 and the support box 22 overlap to realize rotational support for the upper end of the second rotating cylinder 4. At the same time, the shaft 5 is set to rotate with the second rotating cylinder 4. After the operation is completed, the second rotating cylinder 4 can be lifted out of the mixing box 1 by the shaft 5, which is convenient for cleaning the first rotating cylinder 3 and the second rotating cylinder 4.

[0043] In a further detailed exemplary embodiment, as shown in Figures 1 and 4, the second drive motor 8 is fixedly installed on the upper end of the mixing tank 1 and its shaft is fixedly connected to the first drive shaft 24. The first drive shaft 24 extends rotatably into the support box 22 and is fixedly connected to the drive gear 25. The outer ring wall of the support ring 23 is provided with an annular toothed belt 26 and the annular toothed belt 26 meshes with the drive gear 25. The second drive motor 8 drives the drive gear 25, which in turn drives the second rotating drum 4 to rotate through the meshing of the drive gear 25 and the annular toothed belt 26 on the support ring 23. At the same time, both the support ring 23 and the drive gear 25 are horizontally arranged, so that when the shaft 5 is lifted, the annular toothed belt 26 can be smoothly disengaged from the drive gear 25 (when the shaft 5 is lifted upward, the annular toothed belt 26 also moves upward, thus smoothly disengaging from the drive gear 25), thereby not affecting the removal of the second rotating drum 4. The first drive shaft 24 can also be fixedly connected to the support box 22 after passing through the drive gear 25, which allows the drive gear 25 to run more stably under the drive of the first drive motor 7.

[0044] In a more detailed implementation, a positioning ring 27 is fixedly connected to the bottom surface of the support box 22, surrounding the through frame. The lower ring surface of the support ring 23 is recessed with a positioning groove for the positioning ring 27 to slide into. The cooperation between the positioning ring 27 and the positioning groove ensures that the relative position between the support ring 23 and the support box 22 is stable. At the same time, the drive gear 25 and the annular toothed belt 26 mesh together, working together to make the entire second rotating drum 4 rotate stably.

[0045] In another exemplary embodiment, as shown in Figures 1 and 2, a support platform 28 is also fixedly connected to the inner bottom surface of the mixing tank 1. The top surface of the support platform 28 is spherical, and the lower end of the first rotating cylinder 3 slides in contact with the top surface of the support platform 28. The support platform 28 raises the first rotating cylinder 3 above the inner bottom surface of the mixing tank 1, and at the same time protrudes upward to form a spherical surface. Correspondingly, the outer bottom surface of the first rotating cylinder 3 is concave to accommodate the top surface of the support platform 28. The two have a larger contact area, thereby enabling the first rotating cylinder 3 to rotate more stably. That is, the support platform 28 provides more stable rotation support for the first rotating cylinder 3.

[0046] In a further detailed exemplary embodiment, as shown in Figures 1 and 2, the first drive motor 7 is fixedly installed at the bottom of the mixing tank 1, and its shaft is fixedly connected to a second drive shaft 29. The second drive shaft 29 extends rotatably above the support platform 28 and is fixedly connected to the bottom of the first rotating drum 3. That is, the first drive motor 7 operates at the lower end of the mixing tank 1, and drives the first rotating drum 3 to rotate through the second drive shaft 29. This allows the first rotating drum 3 to rotate in the opposite direction to the second rotating drum 4, or to rotate in the same direction but the second rotating drum 4 rotates faster than the first rotating drum 3, so that clumps can be smoothly crushed between the first rotating drum 3 and the second rotating drum 4.

[0047] In a more detailed exemplary embodiment, as shown in Figures 1 and 2, the upper end of the second drive shaft 29 extends fixedly into the first rotating drum 3, and the bottom of the second rotating drum 4 is recessed with a groove for the second drive shaft 29 located within the first rotating drum 3 to rotate and accommodate. In addition to being fixedly connected to the bottom of the first rotating drum 3, the second drive shaft 29 also provides a rotation limit for the bottom of the second rotating drum 4, thereby enabling the second rotating drum 4 and the first rotating drum 3 to rotate more stably.

[0048] In a more detailed exemplary embodiment, as shown in FIG1, a cover 30 is fastened to the upper end of the mixing tank 1 and covers the opening. The cover 30 is also provided with a through-hole cylinder 31 for the shaft 5 to pass through. The cover 30 can prevent external impurities from falling in, and the through-hole cylinder 31 also avoids adverse effects on the rotation of the shaft 5. More specifically, the connecting rod 6 in this embodiment can strengthen the connection between the shaft 5 and the second rotating drum 4, and can also increase the degree of mixing of materials when the second rotating drum 4 rotates, thereby helping to improve the overall efficiency.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A slurry solid-liquid mixing system, characterized in that, include: A mixing tank body, wherein the upper end face of the mixing tank body is provided with an opening, and the bottom of the mixing tank body is fixedly connected with a discharge pipe that communicates with the inside and outside of it; The first rotating drum is rotatably connected to the inner bottom surface of the mixing tank. The second rotating drum is coaxially arranged inside the first rotating drum with a gap between their walls. A shaft extending out of the mixing tank body through the opening is also fixedly connected inside the second rotating drum. A connecting rod is also fixedly connected between the shaft and the second rotating drum. A first drive motor is used to drive the first rotating drum; The second drive motor is used to drive the second rotating drum; The first rotating drum and the second rotating drum are respectively provided with a first sieve hole and a second sieve hole located on the lower end side wall, and the diameter of the first sieve hole is smaller than the diameter of the second sieve hole. The mixing tank is also fixedly connected to an upper partition and a lower partition surrounding the first rotating cylinder. The first rotating cylinder is slidably engaged with the upper partition and the lower partition. The first rotating cylinder and the second rotating cylinder are respectively provided with a first liquid passage hole and a second liquid passage hole located between the upper partition and the lower partition. The mixing tank is also fixedly connected to a liquid inlet pipe, one end of which is connected to the upper partition and the lower partition, and the other end is connected to the outside of the mixing tank.

2. The slurry solid-liquid mixing system as described in claim 1, characterized in that, Both the first sieve hole and the second sieve hole are located below the lower partition plate.

3. The slurry solid-liquid mixing system as described in claim 2, characterized in that, The upper partition is also fixedly connected to a sliding cylinder located above it and in sliding contact with the first rotating cylinder.

4. The slurry solid-liquid mixing system as described in claim 3, characterized in that, A support box is fixedly connected to the upper end of the sliding cylinder. The end of the support box away from the upper partition is also fixedly connected to the mixing tank body, and the orthographic projection of the opening is located inside the support box. A through frame is provided at the bottom of the support box, and a support ring that slides and overlaps with the outer periphery above the through frame is fixedly connected to the upper end of the second rotating cylinder.

5. The slurry solid-liquid mixing system as described in claim 4, characterized in that, The second drive motor is fixedly installed on the upper end of the mixing tank and its shaft is fixedly connected to the first drive shaft. The first drive shaft extends rotatably into the support box and is fixedly connected to the drive gear. The outer ring wall of the support ring is provided with an annular toothed belt and the annular toothed belt meshes with the drive gear.

6. The slurry solid-liquid mixing system as described in claim 4, characterized in that, A positioning ring is also fixedly connected to the bottom surface of the support box, surrounding the through frame. The lower ring surface of the support ring is recessed with a positioning groove into which the positioning ring slides.

7. The slurry solid-liquid mixing system as described in claim 1, characterized in that, A support platform is also fixedly connected to the bottom surface of the mixing tank. The top surface of the support platform is spherical and the lower end of the first rotating cylinder slides in contact with the top surface of the support platform.

8. The slurry solid-liquid mixing system as described in claim 7, characterized in that, The first drive motor is fixedly installed at the bottom of the mixing tank and its shaft is fixedly connected to the second drive shaft. The second drive shaft extends rotatably to the top of the support platform and is fixedly connected to the bottom of the first rotating drum.

9. The slurry solid-liquid mixing system as described in claim 8, characterized in that, The upper end of the second drive shaft is fixedly extended into the first rotating drum, and the bottom of the second rotating drum is recessed to accommodate the second drive shaft located inside the first rotating drum.

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