A stirring device for alumina slurry

Abstract

The invention discloses a stirring device for alumina slurry, which relates to the technical field of stirring devices and comprises a tank body, an upper crossbeam and a rotating shaft one. Lifting cylinders are fixedly arranged on both sides of the rotating shaft one, a rotating shaft two is rotatably arranged in the lifting cylinder, a plurality of propellers are fixedly arranged on the rotating shaft two, a liquid outlet is provided on one side wall of the lifting cylinder, a chute is provided on one side of the liquid outlet, a baffle for blocking the liquid outlet is slidably arranged in the chute, a floating ball is fixedly arranged on one side of the baffle, when slurry is contained in the tank body, the height of the baffle can be controlled by the floating ball floating on the slurry liquid surface, and the slurry in the lifting cylinder can flow out through the liquid outlet located above the baffle, and the sediment at the bottom of the tank body can be sucked into the lifting cylinder and then discharged through the liquid outlet by the rotation of the propeller, and the height of the baffle can be controlled by the floating ball, so that the slurry flowing out of the liquid outlet can always be discharged to the liquid surface.

Description

Technical Field

[0001] The invention relates to the technical field of stirring devices, in particular to a stirring device for alumina slurry. Background Art

[0002] During the production process of alumina powder, it is necessary to stir it. A common stirring device is to install stirring blades in a stirring chamber. For example, the patent with announcement number CN214973956U discloses a flake caustic soda adding and mixing device for alumina production and processing, including an adding and mixing device body and an electromagnetic driver. The adding and mixing device body is a gyro-shaped structure, and the bottom is a convex disc surface tilted downward by 45 degrees. A circular connecting groove plate is installed around the arc at the transverse central axis of the outer side of the adding and mixing device body. The circular connecting groove plate is installed on the surface of the adding and mixing device body and does not extend into the interior thereof. A circular fixed groove plate is installed near the top edge line of the outer side of the adding and mixing device body.

[0003] However, alumina has a greater specific gravity than water. Most of it will sink to the bottom of the stirring chamber after entering the stirring chamber, causing sinking. The stirring method of the existing stirring device is relatively simple, and the slurry cannot flow up and down, resulting in difficulty in allowing the alumina precipitated at the bottom to participate in the stirring, and the stirring effect is not good. In addition, in the production process of alumina slurry, the stirring volume is usually large. In order to increase the volume of the stirring chamber, the diameter of the stirring chamber is usually increased. As the diameter increases, it is more difficult to allow the alumina precipitated at the bottom to participate in the stirring. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a stirring device for alumina slurry, which solves the technical problem that the prior device has poor stirring effect due to the inconvenience of the slurry flowing up and down in the stirring chamber.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a stirring device for alumina slurry, comprising a trough body, an upper crossbeam is fixedly arranged on the top of the trough body, a rotating shaft 1 is rotatably arranged in the upper crossbeam, the bottom of the rotating shaft 1 is rotatably connected to the bottom center of the trough body, lifting cylinders are fixedly arranged on both sides of the rotating shaft 1 through an extension rod 1, a gap is left between the bottom of the lifting cylinder and the bottom of the trough body for liquid flow, a rotating shaft 2 is rotatably arranged in the lifting cylinder, a plurality of propellers are fixedly arranged on the rotating shaft 2, a liquid outlet is provided on one side wall of the lifting cylinder, a slide groove is provided on one side of the liquid outlet, and the slide groove A baffle is slidably provided in the groove for blocking the liquid outlet, a float is fixedly provided on one side of the baffle, and the vertical height of the float is higher than the upper end surface of the baffle. When the groove body is filled with slurry, the height of the baffle can be controlled by the float floating on the slurry liquid surface, and the slurry in the lifting cylinder can flow out through the liquid outlet located above the baffle. An inner gear ring is fixedly provided on the inner side of the upper end of the groove body through a plurality of connecting rods, and a planetary gear one is fixedly provided on the top of the rotating shaft two extending to the outside of the lifting cylinder, and the planetary gear one is meshed with the inner gear ring, and a motor for driving the rotating shaft one to rotate is fixedly provided on the upper cross beam.

[0006] Preferably, an extension rod 2 is fixedly arranged on the side wall of the rotating shaft 1 and is arranged at a right angle to the extension rod 1. A rotating shaft 3 is rotatably arranged at the end of the extension rod 2. A plurality of stirring rods are fixedly arranged on the side wall of the rotating shaft 3. A planetary gear 2 meshing with the inner gear ring is fixedly arranged on the top of the rotating shaft 3.

[0007] Preferably, a large pulley is fixedly provided on the top of the rotating shaft 1, a small pulley is fixedly provided on the driving end of the motor, and a belt is sleeved between the large pulley and the small pulley.

[0008] Preferably, an annular groove is provided at the bottom of the trough body, and the lower port of the lifting cylinder is placed in the annular groove.

[0009] Preferably, the lower surface of the groove body is an inclined surface inclined toward the annular groove.

[0010] The present invention provides a stirring device for alumina slurry, which has the following beneficial effects: the device places a lifting cylinder in a tank body, which can be wrapped by the slurry in the tank body, and the slurry can be absorbed around the bottom of the lifting cylinder, thereby increasing the circumferential range of the bottom suction port. The lifting cylinder can be fixed on a rotating shaft and can be rotated and moved in the tank body, so that the sediments at various places on the bottom of the circular tank body can be sucked out and discharged above the liquid surface, preventing the sediments at the bottom of the tank body from being difficult to participate in stirring and avoiding the generation of flow dead angles. At the same time, the structure can be more suitable for large-diameter tank bodies, providing a good circulation environment for the slurry in the large-diameter tank body; when the lifting cylinder rotates circumferentially, the propeller inside it can rotate at the same time, and the sediments at the bottom of the tank body can be sucked into the lifting cylinder through the rotation of the propeller and then discharged through the liquid outlet. The slurry can flow up and down to prevent the precipitation of alumina. The height of the baffle can be automatically controlled by the buoyancy of the float itself. The float is higher than the upper end of the baffle, so that a slurry outflow channel with a fixed spacing between the upper end of the baffle and the liquid surface is always left, so that the lowest point of the liquid outlet can change with the height of the liquid surface, so that the slurry flowing out of the liquid outlet can always be discharged to the liquid surface, ensuring the mixing effect of the alumina slurry. In addition, when the rotating shaft 1 rotates, the rotating shaft 3 can rotate on its own while rotating circumferentially in the tank body. The slurry in the tank body can be stirred by the stirring rod on the rotating shaft 3, so as to further promote the flow of the slurry in the tank body and reduce the occurrence of precipitation. The annular groove at the bottom of the tank body can facilitate the collection of sediment, and the bottom of the lifting cylinder is placed in the annular groove, so that the sediment can be sucked in and discharged to the liquid surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A perspective view of the present invention;

[0012] Figure 2 A three-dimensional diagram of the internal structure of the present invention;

[0013] Figure 3 A top view of the present invention;

[0014] Figure 4 for Figure 3 Sectional view of AA in the middle;

[0015] Figure 5 for Figure 3 Cross-sectional view of the middle BB;

[0016] Figure 6 It is a cross-sectional view of the internal structure of the lifting cylinder.

[0017] In the figure: 1. tank body; 2. rotating shaft 1; 3. extension rod 1; 4. lifting cylinder; 5. rotating shaft 2; 6. propeller; 7. slideway; 8. liquid outlet; 9. baffle; 10. float; 11. planetary gear 1; 12. connecting rod; 13. inner ring gear; 14. upper crossbeam; 15. large pulley; 16. motor; 17. small pulley; 18. belt; 19. extension rod 2; 20. rotating shaft 3; 21. stirring rod; 22. planetary gear 2; 23. annular groove. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] See also Figure 1-6 The present invention provides a technical solution: a stirring device for alumina slurry, comprising a tank body 1, an upper crossbeam 14 is fixedly arranged on the top of the tank body 1, a rotating shaft 2 is rotatably arranged in the upper crossbeam 14, the bottom of the rotating shaft 2 is rotatably connected to the bottom center of the tank body 1, and lifting cylinders 4 are fixedly arranged on both sides of the rotating shaft 2 through extension rods 3. When the rotating shaft 2 rotates, the lifting cylinder 4 can rotate circumferentially in the tank body 1, and a gap for liquid flow is left between the bottom of the lifting cylinder 4 and the bottom of the tank body 1. A rotating shaft 2 is rotatably arranged in the lifting cylinder 4. Axis 2 5, a plurality of propellers 6 are fixedly arranged on the rotating shaft 2 5, and when the rotating shaft 2 5 rotates, the slurry at the bottom of the tank body 1 can be sucked into the lifting cylinder 4 through the propeller 6, and a liquid outlet 8 is opened on one side wall of the lifting cylinder 4, and a chute 7 is opened on one side of the liquid outlet 8, and a baffle 9 for blocking the liquid outlet 8 is slidably arranged in the chute 7, and a floating ball 10 is fixedly arranged on one side of the baffle 9, and the vertical height of the floating ball 10 is higher than the upper end surface of the baffle 9. When the tank body 1 is filled with slurry, the baffle can be controlled by the floating ball 10 floating on the slurry liquid surface 9, and at the same time ensure that a slurry outflow channel with a fixed spacing can be left between the upper end of the baffle 9 and the slurry liquid surface. The slurry in the lifting cylinder 4 can flow out through the liquid outlet 8 located above the baffle 9, and the slurry at the bottom of the tank body 1 is transported to the top of the tank body 1 through the lifting cylinder 4. The height of the baffle 9 can be adjusted by the float 10 to always discharge the slurry flowing out of the liquid outlet 8 to a position close to the liquid surface, so that the lowest point of the liquid outlet 8 can change with the height of the liquid surface, so that when there is a small difference in the slurry loaded each time, To ensure the up and down flow of the slurry; an inner gear ring 13 is fixedly arranged on the inner side of the upper end of the trough body 1 through a plurality of connecting rods 12, the top of the rotating shaft 2 5 extends to the outside of the lifting cylinder 4 and a planetary gear 11 is fixedly arranged, the planetary gear 11 is meshed with the inner gear ring 13, and a motor 16 for driving the rotating shaft 2 to rotate is fixedly arranged on the upper cross beam 14. The rotating shaft 2 can be driven to rotate by the motor 16, and when the lifting cylinder 4 rotates circumferentially, the rotating shaft 2 5 can be rotated by the meshing of the planetary gear 11 with the inner gear ring 13, thereby rotating the propeller 6.

[0020] As an embodiment of the present invention, an extension rod 2 19 arranged at a right angle to the extension rod 1 3 is fixedly arranged on the side wall of the rotating shaft 2, and a rotating shaft 3 20 is rotatably arranged at the end of the extension rod 2 19. A plurality of stirring rods 21 are fixedly arranged on the side wall of the rotating shaft 3 20, and a planetary gear 2 22 meshing with the inner gear ring 13 is fixedly arranged on the top of the rotating shaft 3 20. When the rotating shaft 1 2 rotates, the rotating shaft 3 20 can also rotate circumferentially in the tank body 1. The rotating shaft 3 20 can be rotated by the meshing of the planetary gear 2 22 with the inner gear ring 13, and the slurry in the tank body 1 can be stirred by the stirring rod 21 on the rotating shaft 3 20.

[0021] As an embodiment of the present invention, a large pulley 15 is fixedly provided on the top of the rotating shaft 2, a small pulley 17 is fixedly provided on the driving end of the motor 16, and a belt 18 is installed between the large pulley 15 and the small pulley 17. Through the cooperation between the small pulley 17 and the large pulley 15, the rotation speed of the rotating shaft 2 can be reduced and its torque can be increased.

[0022] As an embodiment of the present invention, an annular groove 23 is opened at the bottom of the tank body 1, and the lower end of the lifting cylinder 4 is placed in the annular groove 23. The sediment in the slurry can be collected through the annular groove 23 to be easily sucked into the lifting cylinder 4.

[0023] As an embodiment of the present invention, the lower surface of the tank body 1 is an inclined surface inclined toward the annular groove 23 , so as to facilitate the sediment outside the annular groove 23 to slide into the annular groove 23 .

[0024] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and a suitable controller should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and no longer explains the electrical control.

[0025] The working principle and use process of the present invention are as follows: when in use, the slurry is loaded into the tank body 1, and the motor 16 is started to drive the rotating shaft 2 to rotate. When the rotating shaft 2 rotates, the lifting cylinder 4 can rotate circumferentially in the tank body 1, and the propeller 6 in the lifting cylinder 4 is driven by the rotating shaft 5 to rotate, so that the sediment at the bottom of the tank body 1 can be sucked in, and then discharged through the liquid outlet 8, so as to realize the up and down flow of the slurry. The buoyancy of the float 10 itself can automatically control the height of the baffle 9. By making the float 10 higher than the upper end of the baffle 9, a slurry outflow channel with a fixed spacing can always be left between the upper end of the baffle 9 and the liquid surface, so that the slurry flowing out of the liquid outlet 8 can always be discharged to the liquid surface, so that when there is a small gap in the slurry loaded each time, It can ensure the effective up and down flow of the slurry, prevent the slurry at the liquid surface from being difficult to participate in the mixing due to the distance between the discharged slurry and the liquid surface when more slurry is stirred, and also prevent the slurry in the lifting cylinder 4 from being difficult to pump to the liquid outlet 8 when less slurry is stirred; when the rotating shaft 2 rotates, the rotating shaft 3 20 can rotate on its own while rotating circumferentially in the tank body 1, and the slurry in the tank body 1 can be stirred by the stirring rod 21 on the rotating shaft 3 20, further promoting the flow of the slurry in the tank body 1 and reducing the occurrence of sedimentation; the annular groove 23 at the bottom of the tank body 1 can facilitate the collection of sediment, and by placing the bottom of the lifting cylinder 4 in the annular groove 23, the sediment can be easily sucked in and discharged to the liquid surface.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stirring device for alumina slurry, characterized in that: The invention comprises a tank body (1), wherein an upper crossbeam (14) is fixedly arranged on the top of the tank body (1), a rotating shaft (2) is rotatably arranged inside the upper crossbeam (14), the bottom of the rotating shaft (2) is rotatably connected to the bottom center of the tank body (1), a lifting cylinder (4) is fixedly arranged on both sides of the rotating shaft (2) through an extension rod (3), a gap for liquid flow is left between the bottom of the lifting cylinder (4) and the bottom of the tank body (1), a rotating shaft (5) is rotatably arranged inside the lifting cylinder (4), a plurality of propellers (6) are fixedly arranged on the rotating shaft (5), a liquid outlet (8) is provided on one side wall of the lifting cylinder (4), a slide groove (7) is provided on one side of the liquid outlet (8), a baffle (9) for blocking the liquid outlet (8) is slidably arranged in the slide groove (7), A float (10) is fixedly provided on one side of the baffle (9), and the vertical height of the float (10) is higher than the upper end surface of the baffle (9). When the tank body (1) is filled with slurry, the height of the baffle (9) can be controlled by the float (10) floating on the slurry liquid surface, and the slurry in the lifting cylinder (4) can flow out through the liquid outlet (8) located above the baffle (9). An inner gear ring (13) is fixedly provided on the inner side of the upper end of the tank body (1) through a plurality of connecting rods (12). A planetary gear one (11) is fixedly provided on the top of the rotating shaft (5) extending to the outer side of the lifting cylinder (4), and the planetary gear one (11) is meshed with the inner gear ring (13). A motor (16) for driving the rotating shaft one (2) to rotate is fixedly provided on the upper crossbeam (14). The bottom of the trough body (1) is provided with an annular groove (23), the lower end of the lifting cylinder (4) is placed in the annular groove (23), and the lower surface of the trough body (1) is an inclined surface inclined in the direction of the annular groove (23).

2. A stirring device for alumina slurry according to claim 1, characterized in that: An extension rod 2 (19) is fixedly arranged on the side wall of the rotating shaft 1 (2) and is arranged at a right angle to the extension rod 1 (3). A rotating shaft 3 (20) is rotatably arranged at the end of the extension rod 2 (19). A plurality of stirring rods (21) are fixedly arranged on the side wall of the rotating shaft 3 (20). A planetary gear 2 (22) meshing with the inner gear ring (13) is fixedly arranged on the top of the rotating shaft 3 (20).

3. The stirring device for alumina slurry according to claim 1, characterized in that: A large pulley (15) is fixedly arranged on the top of the rotating shaft (2), a small pulley (17) is fixedly arranged on the driving end of the motor (16), and a belt (18) is sleeved between the large pulley (15) and the small pulley (17).

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