Rotary liquid filter for aluminum oxide production

Abstract

The utility model belongs to the field of aluminum oxide production, and provides a liquid rotary filter for aluminum oxide production, which comprises a casing, a centrifugal component and a backflushing component, a support is arranged in the casing, a filter cartridge penetrates through the middle of the support, the top end of the filter cartridge is connected with a rotating pipe, and the top end of the rotating pipe is rotatably connected with the top of the inner wall of the casing. A centrifugal assembly is arranged in the middle of the rotating pipe, the bottom end of the filter cartridge is connected with a slag outlet pipe penetrating through the shell, and a backflushing assembly is arranged on one side of the filter cartridge; the filter cartridge and the centrifugal component are arranged in the shell, the centrifugal component drives the filter cartridge to quickly rotate, liquid is quickly thrown out of the filter cartridge by centrifugal force, and the overall filtering efficiency and filtering effect are improved; the swinging piece can drive the back-flushing pipe to perform back-flushing type cleaning on the filter cartridge, so that the subsequent filtering effect of the filter cartridge is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of alumina production, specifically a liquid rotary filter used in alumina production. Background Technology

[0002] Alumina production typically involves the Bayer process, which includes steps such as decomposition, sedimentation, and filtration. Liquid filtration is important in this process, especially in removing impurities and fine particles from the aluminum hydroxide slurry;

[0003] A search revealed a Chinese patent with publication number CN217247184U, which describes a liquid rotary filter for alumina production. The filter includes an installation assembly with a filter device mounted on it. The filter device has a rotating mechanism installed inside, and a collection device is installed on the top of the installation assembly. When the operator rotates the screw clockwise, the stabilizing plate moves downward. Because the anti-slip pad is fixedly installed at the bottom of the stabilizing plate, the friction between the plate and the ground is increased, thus improving the stability during use.

[0004] However, the aforementioned liquid rotary filter has a fixed filter cartridge (3) during the liquid filtration process, and mainly relies on the gravity of the liquid itself for filtration. The filtration effect is poor, and it is inconvenient to clean and maintain the filter cartridge.

[0005] To address these issues, those skilled in the art have proposed a liquid rotary filter for alumina production to solve the problems raised in the background art. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a liquid rotary filter for alumina production, which solves the problems of poor filtration effect and inconvenience in cleaning and maintaining the filter cartridge in existing rotary filters.

[0007] A liquid rotary filter for alumina production includes a housing, a centrifugal assembly, and a backwash assembly. A support is provided inside the housing, and a filter cylinder passes through the middle of the support. A rotating tube is connected to the top of the filter cylinder, and the top of the rotating tube is rotatably connected to the top of the inner wall of the housing. A centrifugal assembly for driving the filter cylinder to filter the liquid is provided in the middle of the rotating tube. A slag discharge pipe passing through the housing is connected to the bottom of the filter cylinder. A backwash assembly that cooperates with the centrifugal assembly is provided on one side of the filter cylinder.

[0008] Preferably, an inlet pipe is installed through the top of the housing, the inlet pipe is coaxially arranged with the rotating pipe, and the bottom end of the inlet pipe is inserted into the rotating pipe.

[0009] Preferably, a liquid outlet pipe is provided on one side of the bottom of the shell, and a manual valve is provided in the middle of both the liquid outlet pipe and the slag outlet pipe.

[0010] Preferably, the centrifugal assembly includes a motor, a drive gear, and a driven gear. The motor is mounted on the top of the housing, and the output end of the motor passes through the housing and is connected to the drive gear. The driven gear is meshed with one side of the drive gear and is mounted on the outside of the rotating tube.

[0011] Preferably, the backflush assembly includes a backflush pipe, a nozzle, a swinging component, and a pump body. Ear plates are installed at both ends of the inner wall of the housing, and a backflush pipe is rotatably arranged between the two ear plates. A swinging component is provided at the top of the backflush pipe. Multiple sets of nozzles are linearly arranged on one side of the backflush pipe. A pump body is installed on the outer wall of the housing. The water inlet of the pump body is connected to an external water pipe, and the water outlet of the pump body is connected to a water delivery hose. One end of the water delivery hose passes through the housing and is connected to the backflush pipe.

[0012] Preferably, the swing component includes a connecting shaft, a connecting plate, and a guide shaft. The top end of the recoil tube is connected to the connecting shaft, one end of the connecting shaft passes through the ear plate and is connected to the connecting plate, and a guide shaft is provided at the eccentric part of the lower end face of the drive gear. A strip-shaped slot is provided on the connecting plate for the guide shaft to pass through.

[0013] Compared with the prior art, the present invention has the following advantages: by setting a filter cylinder and a centrifugal assembly inside the housing, the centrifugal assembly drives the filter cylinder to rotate rapidly, and the centrifugal force is used to quickly throw the liquid out of the filter cylinder, thereby accelerating the overall filtration efficiency and filtration effect. In addition, by setting a backwash assembly, the backwash assembly has a swinging component that cooperates with the centrifugal assembly, so that the swinging component can drive the backwash pipe to swing back and forth to backwash and clean the rotating filter cylinder, thus ensuring the subsequent filtration effect of the filter cylinder. Attached Figure Description

[0014] Figure 1 This is the main view of the present invention.

[0015] Figure 2 This is a side sectional view of the present invention;

[0016] Figure 3 This is a top cross-sectional view of the present invention;

[0017] Figure 4 This is a diagram showing the internal structure of the shell of this utility model;

[0018] Figure 5 This utility model Figure 4 Enlarged structural diagram of part A.

[0019] In the picture:

[0020] 1. Shell; 2. Support; 3. Filter cartridge; 4. Rotating tube; 5. Slag discharge tube; 6. Liquid inlet tube; 7. Liquid outlet tube; 8. Manual valve; 9. Motor; 10. Drive gear; 11. Driven gear; 12. Backflush tube; 13. Nozzle; 14. Pump body; 15. Ear plate; 16. Water delivery hose; 17. Connecting shaft; 18. Connecting plate; 19. Guide shaft; 20. Strip groove. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] As attached Figure 1 To be continued Figure 5 As shown:

[0023] This utility model provides a liquid rotary filter for alumina production, including a housing 1, a centrifugal assembly, and a backwash assembly. A support 2 is provided inside the housing 1, and a filter cylinder 3 passes through the middle of the support 2. A rotating tube 4 is connected to the top of the filter cylinder 3, and the top of the rotating tube 4 is rotatably connected to the top of the inner wall of the housing 1. A centrifugal assembly for driving the filter cylinder 3 to filter the liquid is provided in the middle of the rotating tube 4. A slag discharge pipe 5 passing through the housing 1 is connected to the bottom of the filter cylinder 3. A backwash assembly that cooperates with the centrifugal assembly is provided on one side of the filter cylinder 3.

[0024] refer to Figure 2 The top of the housing 1 is fitted with a liquid inlet pipe 6, which is coaxial with the rotating pipe 4. The bottom end of the liquid inlet pipe 6 is inserted into the rotating pipe 4.

[0025] The liquid to be filtered is introduced into the inside of the filter cylinder 3 through the connection between the liquid inlet pipe 6 and the rotating pipe 4.

[0026] refer to Figure 2 A liquid outlet pipe 7 is provided on one side of the bottom of the shell 1, and a manual valve 8 is provided in the middle of both the liquid outlet pipe 7 and the slag outlet pipe 5.

[0027] Material is discharged in sections via liquid outlet pipe 7 and slag outlet pipe 5. Liquid outlet pipe 7 and slag outlet pipe 5 can be manually opened via manual valve 8.

[0028] refer to Figure 2 The centrifugal assembly includes a motor 9, a drive gear 10, and a driven gear 11. The motor 9 is mounted on the top of the housing 1. The output end of the motor 9 passes through the housing 1 and is connected to the drive gear 10. The driven gear 11 is meshed with one side of the drive gear 10 and is mounted on the outside of the rotating tube 4.

[0029] Among them, the motor 9 drives the drive gear 10 to rotate, and the drive gear 10 meshes with the driven gear 11. Under the action of the meshing force, the filter cylinder 3 is driven to rotate through the rotating tube 4, thereby centrifugally filtering the liquid.

[0030] refer to Figure 3 The backflush assembly includes a backflush pipe 12, a nozzle 13, a swinging component, and a pump body 14. Ear plates 15 are installed at both ends of the inner wall of the housing 1. The backflush pipe 12 is rotatably arranged between the two ear plates 15. A swinging component is provided at the top of the backflush pipe 12. Multiple sets of nozzles 13 are linearly arranged on one side of the backflush pipe 12. The pump body 14 is installed on the outer wall of the housing 1. The water inlet end of the pump body 14 is connected to an external water pipe. The water outlet end of the pump body 14 is connected to a water delivery hose 16. One end of the water delivery hose 16 passes through the housing 1 and is connected to the backflush pipe 12.

[0031] Water is drawn from an external water pipe by the pump body 14, and then transmitted to the backwash pipe 12 via the water delivery hose 16. The filter cartridge 3 is then backwashed by the nozzle 13, thereby maintaining and cleaning the filter cartridge 3.

[0032] refer to Figure 4 and Figure 5 The swing component includes a connecting shaft 17, a connecting plate 18, and a guide shaft 19. The top end of the recoil tube 12 is connected to the connecting shaft 17. One end of the connecting shaft 17 passes through the ear plate 15 and is connected to the connecting plate 18. The guide shaft 19 is provided at the eccentric part of the lower end face of the drive gear 10. A strip-shaped slot 20 is provided on the connecting plate 18 for the guide shaft 19 to pass through.

[0033] When the motor 9 drives the drive gear 10 to rotate, the drive gear 10 drives the guide shaft 19 to make a circular motion. When the guide shaft 19 makes a circular motion, it drives the connecting plate 18 to swing the backwash tube 12 left and right around the connecting shaft 17. During the swinging process, it expands the rinsing area of ​​the filter cartridge 3.

[0034] Working principle: In use, the liquid to be filtered is introduced into the filter cylinder 3 through the inlet pipe 6 and the rotating pipe 4. Then, the motor 9 is started, and the motor 9 drives the drive gear 10 to rotate. The drive gear 10 meshes with the driven gear 11. Under the action of the meshing force, the filter cylinder 3 is driven to rotate rapidly through the rotating pipe 4. During the rotation, the liquid is centrifugally filtered. The filtered liquid can be discharged through the outlet pipe 7, and the filtered residue can be discharged through the slag outlet pipe 5. When the filter cylinder 3 needs to be maintained and cleaned, the motor 9 drives the drive gear 10 to rotate. The drive gear 10 and the driven gear 11 work together to drive the filter cylinder 3 to rotate. At the same time, the drive gear 10 drives the guide shaft 19 to make a circular motion. When the guide shaft 19 moves in a circular motion, it drives the connecting plate 18 to swing left and right around the connecting shaft 17. During the swing, it expands the rinsing area of ​​the filter cylinder 3.

[0035] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model, which is defined by the appended claims and their equivalents.

Claims

1. A liquid rotary filter for use in alumina production, characterized by, The device includes a housing (1), a centrifugal assembly, and a backwash assembly. A support (2) is provided inside the housing (1). A filter cylinder (3) passes through the middle of the support (2). A rotating tube (4) is connected to the top of the filter cylinder (3). The top of the rotating tube (4) is rotatably connected to the top of the inner wall of the housing (1). A centrifugal assembly for driving the filter cylinder (3) to filter the liquid is provided in the middle of the rotating tube (4). A slag discharge pipe (5) that passes through the housing (1) is connected to the bottom of the filter cylinder (3). A backwash assembly that cooperates with the centrifugal assembly is provided on one side of the filter cylinder (3).

2. A liquid rotary filter for use in alumina production as claimed in claim 1, characterized in that: The top of the housing (1) is fitted with a liquid inlet pipe (6), which is coaxial with the rotating pipe (4). The bottom end of the liquid inlet pipe (6) is inserted into the rotating pipe (4).

3. A liquid rotary filter for use in alumina production as claimed in claim 1, characterized in that: A liquid outlet pipe (7) is provided on one side of the bottom of the shell (1), and a manual valve (8) is provided in the middle of both the liquid outlet pipe (7) and the slag outlet pipe (5).

4. The liquid rotary filter for use in alumina production according to claim 1, characterized in that: The centrifugal assembly includes a motor (9), a drive gear (10) and a driven gear (11). The motor (9) is mounted on the top of the housing (1). The output end of the motor (9) passes through the housing (1) and is connected to the drive gear (10). The driven gear (11) is meshed on one side of the drive gear (10). The driven gear (11) is mounted on the outside of the rotating tube (4).

5. A liquid rotary filter for use in alumina production as claimed in claim 4, characterized in that: The backflush assembly includes a backflush pipe (12), a nozzle (13), a swinging component, and a pump body (14). Ear plates (15) are installed at both ends of the inner wall of the housing (1). The backflush pipe (12) is rotatably arranged between the two ear plates (15). A swinging component is provided at the top of the backflush pipe (12). Multiple nozzles (13) are linearly arranged on one side of the backflush pipe (12). The pump body (14) is installed on the outer wall of the housing (1). The water inlet of the pump body (14) is connected to an external water pipe. The water outlet of the pump body (14) is connected to a water delivery hose (16). One end of the water delivery hose (16) passes through the housing (1) and is connected to the backflush pipe (12).

6. A liquid rotary filter for use in alumina production as claimed in claim 5, characterized in that: The swing component includes a connecting shaft (17), a connecting plate (18), and a guide shaft (19). The top end of the recoil tube (12) is connected to the connecting shaft (17). One end of the connecting shaft (17) passes through the ear plate (15) and is connected to the connecting plate (18). The guide shaft (19) is provided at the eccentric part of the lower end face of the drive gear (10). The connecting plate (18) has a strip-shaped slot (20) for the guide shaft (19) to pass through.

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