Settling tank for aluminum oxide production

Abstract

The utility model discloses a settling tank for aluminum oxide production, which comprises a tank body and a support, the tank body is mounted in the support, a discharge port is arranged at the bottom of the tank body, a top cover is mounted at the top of the tank body, a driving motor is mounted on the top cover, an output end of the driving motor penetrates through the top cover, and the output end of the driving motor is connected with the support. The lower portion of the output end of the driving motor is connected with a rotating shaft, the bottom end of the rotating shaft is slidably sleeved with a sleeve, the sleeve is located in the discharging port, stirring rods are evenly arranged on the annular outer wall of the sleeve, the position, located above the sleeve, of the bottom end of the rotating shaft is fixedly sleeved with a lantern ring, and the rotating shaft is sleeved with a spring; one end of the spring is connected to the lantern ring, and the other end of the spring is connected to the sleeve. The utility model belongs to the technical field of aluminum oxide production, and particularly relates to a settling tank for aluminum oxide production.

Description

Technical Field

[0001] The utility model belongs to the technical field of alumina production, in particular to a sedimentation tank for alumina production. Background Art

[0002] Adding flocculants during the separation and washing of Bayer red mud is an effective method commonly used in the alumina industry to accelerate the sedimentation rate of red mud. Its function is to make the red mud particles in the dissolved and diluted slurry unite into agglomerates, increase the particle size, and thus greatly accelerate the sedimentation rate, which is convenient for the separation of red mud and the clarification of sodium aluminate. Sedimentation tanks are required in the red mud sedimentation process.

[0003] When the existing rake arm in the sedimentation tank cleans the sediment at the bottom of the sedimentation tank, the cleaned sediment flows out through the discharge port. During the outflow process, the discharge port is easily blocked by larger pieces of sediment, which is not conducive to the smooth outflow of the sediment. When manual tools are used to clear the blockage, the sediment is easy to fall on the hands, which is relatively unclean. Utility Model Content

[0004] In order to solve the above-mentioned problem that when the sediment at the bottom of the sedimentation tank is cleaned, the cleaned sediment flows out through the discharge port, and during the outflow process, the discharge port is easily blocked by larger pieces of sediment, which is not conducive to the smooth outflow of the sediment, the utility model provides a sedimentation tank for aluminum oxide production.

[0005] In order to achieve the above functions, the technical solution adopted by the utility model is as follows: a sedimentation tank for alumina production, comprising a tank body and a bracket, the tank body is installed in the bracket, a discharge port is arranged at the bottom of the tank body, a top cover is installed on the top of the tank body, a driving motor is installed on the top cover, the output end of the driving motor passes through the top cover, a rotating shaft is connected under the output end of the driving motor, a sleeve is slidably sleeved on the bottom end of the rotating shaft, the sleeve is located inside the discharge port, stirring rods are evenly arranged on the annular outer wall of the sleeve, a ring is fixedly sleeved on the bottom end of the rotating shaft and located above the sleeve, a spring is sleeved on the rotating shaft, one end of the spring is connected to the ring, and the other end of the spring is connected to the sleeve.

[0006] As a preferred technical solution of the utility model, rake tooth plates are arranged on both sides of the rotating shaft near the bottom side of the tank body, and the rake tooth plates are arranged in close contact with the bottom wall of the tank body.

[0007] As an optimal technical solution of the utility model, a support plate is provided on the outer wall of the discharge port, an electric push rod is installed under the support plate, a sealing plug is screwed under the output end of the electric push rod, and the sealing plug is adapted to the discharge port plug.

[0008] As a preferred technical solution of the utility model, a mounting slot hole is opened on the side wall of the slot body, and a transparent observation window is embedded in the mounting slot hole.

[0009] As a preferred technical solution of the utility model, the bottom of the trough body is a conical structure.

[0010] As a preferred technical solution of the utility model, a feed port is provided on the top cover.

[0011] Compared with the prior art, the utility model adopts the above structure to achieve the following beneficial effects: stirring rods are evenly arranged on the sleeve elastically connected by a spring in the discharge port, and the driving motor drives the rotating shaft to rotate, and the rotating shaft drives the stirring rod on the bottom sleeve to rotate back and forth in the discharge port, and the sleeve and the rotating shaft are elastically connected by a spring. When rotating, the sleeve will also telescope and move on the rotating shaft due to the elastic force, thereby driving the stirring rod on the sleeve to not only stir at the discharge port but also move up and down, thereby better cleaning the discharge port and making the discharge port cleaning process smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of a sedimentation tank for alumina production proposed by the utility model;

[0013] Figure 2 A cross-sectional view of a sedimentation tank for alumina production proposed by the utility model;

[0014] Figure 3 A cross-sectional view of a sedimentation tank for alumina production proposed by the utility model;

[0015] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0016] Among them, 1. trough body, 2. bracket, 3. discharge port, 4. top cover, 5. drive motor, 6. rotating shaft, 7. sleeve, 8. stirring rod, 9. collar, 10. spring, 11. rake tooth plate, 12. support plate, 13. electric push rod, 14. sealing plug, 15. installation slot, 16. transparent observation window, 17. feed port. DETAILED DESCRIPTION

[0017] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. The present utility model is further described in detail below in conjunction with the accompanying drawings.

[0019] like Figure 1-4 As shown, the utility model provides a sedimentation tank for alumina production, including a tank body 1 and a bracket 2, the tank body 1 is installed in the bracket 2, the bracket 2 supports and fixes the tank body 1, the bottom of the tank body 1 is a conical structure, the bottom of the tank body 1 is provided with a discharge port 3, the top of the tank body 1 is provided with a top cover 4, the top cover 4 is provided with a feed port 17, a driving motor 5 is installed on the top cover 4, the output end of the driving motor 5 passes through the top cover 4, the output end of the driving motor 5 is connected to a rotating shaft 6, the bottom end of the rotating shaft 6 is slidably sleeved with a sleeve 7, the sleeve 7 is located inside the discharge port 3, stirring rods 8 are evenly arranged on the annular outer wall of the sleeve 7, the bottom end of the rotating shaft 6 and located at the sleeve A ring 9 is fixedly sleeved above 7, and a spring 10 is sleeved on the rotating shaft 6, one end of the spring 10 is connected to the ring 9, and the other end of the spring 10 is connected to the sleeve 7. When the sediment in the tank body 1 is cleared, the driving motor 5 drives the rotating shaft 6 to rotate, and the rotating shaft 6 drives the stirring rod on the bottom sleeve 7 to rotate back and forth in the discharge port 3, and the sleeve 7 and the rotating shaft 6 are elastically connected by the spring 10. When rotating, the sleeve 7 will also telescope and move on the rotating shaft 6 due to the elastic force, thereby driving the stirring rod on the sleeve 7 to not only stir at the discharge port 3 but also move up and down, so as to better clean the discharge port 3 and make the cleaning process of the discharge port 3 smoother.

[0020] like Figure 2 and 3 As shown, rake plates 11 are provided on both sides of the rotating shaft 6 near the bottom of the tank body, and the rake plates 11 are arranged in close contact with the bottom wall of the tank body 1. When the driving motor 5 drives the rotating shaft 6 to rotate, the rotating shaft 6 drives the rake plates 11 to shovel and clean the sediment at the bottom of the tank body 1.

[0021] like Figure 1-3As shown, a support plate 12 is provided on the outer wall of the discharge port 3, and an electric push rod 13 is installed under the support plate 12. A sealing plug 14 is screwed on the lower output end of the electric push rod 13, and the sealing plug 14 is adapted to the discharge port 3. The electric push rod 13 drives the sealing plug 14 to tightly seal the bottom side of the discharge port 3. When it is necessary to discharge the sediment at the bottom of the tank body 1, the electric push rod 13 extends to separate the sealing plug 14 from the discharge port 3, and then rotates the sealing plug 14 to the side away from the discharge port 3, which does not affect the discharge of sediment from the discharge port 3.

[0022] like Figure 1 As shown, a mounting slot hole 15 is provided on the side wall of the tank body 1 , and a transparent observation window 16 is embedded in the mounting slot hole 15 , so that the operator can observe the settling condition of the red mud particles in the tank body 1 conveniently.

[0023] During specific use, after the red mud particles in the tank body 1 are settled, the clarified liquid of sodium aluminate in the upper layer is discharged from the pipeline, and the electric push rod 13 is started. The electric push rod 13 drives the sealing plug 14 to tightly seal the bottom side of the discharge port 3. When the sediment at the bottom of the tank body 1 needs to be discharged, the electric push rod 13 extends to separate the sealing plug 14 from the discharge port 3, and then rotates the sealing plug 14 to the side away from the discharge port 3, and then starts the driving motor 5. The driving motor 5 drives the rotating shaft 6 to rotate, and the rotating shaft 6 drives the stirring rod on the bottom sleeve 7 to rotate back and forth in the discharge port 3, and the sleeve 7 and the rotating shaft 6 are elastically connected by the spring 10. When rotating, the sleeve 7 will also telescope on the rotating shaft 6 due to the elastic force, thereby driving the stirring rod on the sleeve 7 to not only stir but also move up and down at the discharge port 3, so as to better clean the discharge port 3, and the sediment is discharged smoothly from the discharge port 3.

[0024] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A settling tank for alumina production, comprising a tank body (1) and a bracket (2), wherein the tank body (1) is installed in the bracket (2), characterized in that: The bottom of the trough body (1) is provided with a discharge port (3), the top of the trough body (1) is provided with a top cover (4), a driving motor (5) is provided on the top cover (4), the output end of the driving motor (5) is arranged through the top cover (4), a rotating shaft (6) is connected below the output end of the driving motor (5), a sleeve (7) is slidably sleeved at the bottom end of the rotating shaft (6), the sleeve (7) is located inside the discharge port (3), stirring rods (8) are evenly arranged on the annular outer wall of the sleeve (7), a sleeve ring (9) is fixedly sleeved at the bottom end of the rotating shaft (6) and located above the sleeve (7), a spring (10) is sleeved on the rotating shaft (6), one end of the spring (10) is connected to the sleeve ring (9), and the other end of the spring (10) is connected to the sleeve (7).

2. A settling tank for alumina production according to claim 1, characterized in that: Rake tooth plates (11) are arranged on both sides of the rotating shaft (6) near the bottom side of the tank body, and the rake tooth plates (11) are arranged in close contact with the bottom wall of the tank body (1).

3. A settling tank for alumina production according to claim 1, characterized in that: A support plate (12) is provided on the outer wall of the discharge port (3), an electric push rod (13) is installed under the support plate (12), a sealing plug (14) is screwed under the output end of the electric push rod (13), and the sealing plug (14) is adapted to be sealed with the discharge port (3).

4. A settling tank for alumina production according to claim 1, characterized in that: A mounting slot hole (15) is provided on the side wall of the slot body (1), and a transparent observation window (16) is embedded in the mounting slot hole (15).

5. A settling tank for alumina production according to claim 1, characterized in that: The bottom of the tank body (1) is in a conical structure.

6. A settling tank for alumina production according to claim 1, characterized in that: The top cover (4) is provided with a feed port (17).

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