Device for extracting aluminum oxide from aluminum ash

Abstract

The utility model relates to the technical field of aluminum ash recovery, and discloses a device for extracting aluminum oxide from aluminum ash, which comprises a treatment container and a solid-liquid separation cylinder rotatably connected in the treatment container, the top of the treatment container is fixedly connected with a stand column, the upper end of the stand column is connected with a cross rod, and the upper end of the stand column is fixedly connected with a mounting block. A mounting groove matched with the mounting block is formed in one end of the cross rod, and limiting assemblies are arranged on the two sides of the mounting block; according to the device for extracting the aluminum oxide from the aluminum ash, the inner wall of the solid-liquid separation barrel can be cleaned through the cleaning assembly on the outer wall of the vertical rod, so that the situation that a large amount of aluminum ash adheres to the inner wall of the solid-liquid separation barrel, and a through hole is blocked can be effectively prevented; and after a limiting assembly on a mounting block is removed, a cross rod is pulled to take out a vertical rod and a cleaning assembly from the interior of the treatment container, so that a worker can conveniently clean the cleaning assembly, and the cleaning effect of the cleaning assembly on the interior of the solid-liquid separation barrel can be effectively guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of aluminum ash slag recycling technology, specifically to a device for extracting alumina from aluminum ash slag. Background Technology

[0002] Aluminum ash is a byproduct of the production of metallic aluminum and aluminum alloys. It contains a lot of toxic and harmful substances. Direct landfilling will cause great harm to the environment. Therefore, the treatment of aluminum ash and the effective recycling of the secondary aluminum resources contained in it are of great significance to the sustainable development of the aluminum industry and environmental protection.

[0003] In the prior art, such as the device for extracting alumina from aluminum ash slag disclosed in announcement number CN219730552U, this technical solution discloses a device for extracting alumina from aluminum ash slag, including a processing container, a solid-liquid separation cylinder, an aluminum slag recovery tank, an aluminum powder recovery tank, and a calcining kiln. The processing container is connected to the aluminum slag recovery tank through the solid-liquid separation cylinder. The acid leaching solution generated from the acid leaching and desalination of the aluminum ash slag is output to the processing container through the liquid passage as the solid-liquid separation cylinder rotates centrifugally. The separated aluminum slag is discharged into the aluminum slag recovery tank through the aluminum slag outlet. The acid leaching solution separated through the liquid passage falls onto an arc-shaped filter plate. The aluminum powder obtained by the precipitation of sodium aluminate through the arc-shaped filter plate is output to the aluminum powder recovery tank through the feed port on the aluminum powder recovery tank. The aluminum slag in the aluminum slag recovery tank and the aluminum powder in the aluminum powder recovery tank are output to the calcining kiln through the first extraction pump and the second extraction pump. The aluminum slag and aluminum powder are calcined to obtain alumina, thereby achieving a high recovery rate of alumina extraction from aluminum ash slag and reducing the waste rate of aluminum resources.

[0004] However, in the current aluminum ash slag extraction alumina equipment, after the aluminum ash slag and the liquid used for acid leaching and desalting the aluminum ash slag are put into the solid-liquid separation cylinder, the lack of a stirring device inside the solid-liquid separation cylinder not only results in poor mixing between the aluminum ash slag and the liquid, but also causes a large amount of aluminum ash slag to adhere to the inner wall of the solid-liquid separation cylinder. If the inside of the solid-liquid separation cylinder is not cleaned in time, it may cause blockage of the through holes on the solid-liquid separation cylinder, thereby affecting the normal operation of the equipment.

[0005] To address the aforementioned problems, this application proposes an apparatus for extracting alumina from aluminum ash slag. Utility Model Content

[0006] This utility model aims to provide a device for extracting alumina from aluminum ash slag, mainly to solve the problem that the solid-liquid separation cylinder inside the existing aluminum ash slag extraction alumina device has a poor mixing effect between aluminum ash slag and liquid, and that a large amount of aluminum ash slag will adhere to the inner wall of the solid-liquid separation cylinder.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] An apparatus for extracting alumina from aluminum ash slag includes a processing container and a solid-liquid separation cylinder rotatably connected inside the processing container. A column is fixedly connected to the top of the processing container, a crossbar is connected to the upper end of the column, and an mounting block is fixedly connected to the upper end of the column. One end of the crossbar has an installation groove that matches the mounting block. Limiting components are provided on both sides of the mounting block. A vertical rod is fixedly connected to the bottom end of the crossbar away from the installation groove. Multiple sets of cleaning components are fixedly connected to the outer wall of the vertical rod.

[0009] The working principle and beneficial effects of this utility model:

[0010] 1. Working Principle: When using this aluminum ash slag extraction alumina device, aluminum ash slag and the liquid from acid leaching and desalting the aluminum ash slag are fed into the solid-liquid separation cylinder. (The operation of the first drive motor generates centrifugal force to rotate the solid-liquid separation cylinder, thereby improving the solid-liquid separation effect of the aluminum ash slag. The acid leaching liquid produced from the acid leaching and desalting of the aluminum ash slag is output to the processing container through the liquid passage as the solid-liquid separation cylinder rotates centrifugally. The separated aluminum slag is discharged into the aluminum slag recovery tank through the aluminum slag outlet. The acid leaching liquid from the liquid passage falls onto the arc-shaped filter plate. A certain proportion of hydrogen peroxide and sodium hydroxide are added to the processing container through the addition port. The hydrogen peroxide and sodium hydroxide react with the acid leaching liquid to obtain sodium aluminate, which is then filtered through the arc-shaped filter plate.) The aluminum powder obtained from precipitation is output to the aluminum powder recovery tank through the feed port on the aluminum powder recovery tank. The aluminum slag in the aluminum slag recovery tank and the aluminum powder in the aluminum powder recovery tank are output to the calcining kiln through the first extraction pump and the second extraction pump. The aluminum slag and aluminum powder are calcined to produce alumina. (The part in parentheses is prior art, which is not described in detail in this application.) While the solid-liquid separation cylinder rotates, the cleaning component on the outer wall of the vertical rod can clean the inner wall of the solid-liquid separation cylinder. After releasing the limiting component on the mounting block, pulling the horizontal bar can remove the vertical rod and the cleaning component from the inside of the processing container, so as to facilitate the cleaning component to be cleaned by the staff. After the cleaning component is cleaned, the vertical rod and the cleaning component are inserted into the inside of the processing container, and then the horizontal bar is fixed to the upper end of the column by the limiting component. The device can then operate normally.

[0011] 2. Beneficial Effects: During the operation of this aluminum ash slag extraction alumina device, the cleaning component on the outer wall of the vertical rod can clean the inner wall of the solid-liquid separation cylinder. This effectively prevents a large amount of aluminum ash slag from adhering to the inner wall of the solid-liquid separation cylinder and clogging the through holes, thus ensuring the normal operation of the device. After releasing the limiting component on the mounting block, pulling the horizontal bar can remove the vertical rod and the cleaning component from inside the processing container, making it convenient for staff to clean the cleaning component. This effectively ensures the cleaning effect of the cleaning component on the inside of the solid-liquid separation cylinder.

[0012] Preferably, the limiting component includes sliding cavities on both sides of the mounting block. Limiting blocks are slidably connected inside the sliding cavities. One side of the limiting block extends out of the sliding cavity, and the other side is fixedly connected to a symmetrical spring. The other end of the spring is fixedly connected to the inner wall of the sliding cavity. Pressing the limiting blocks on both sides of the mounting block causes them to slide into the sliding cavity. When the limiting blocks are fully inserted into the sliding cavity, pulling the crossbar can remove the vertical rod and cleaning component from the processing container, making it convenient for workers to clean the cleaning component. After the cleaning component is cleaned, the vertical rod and cleaning component are inserted into the processing container. Then, the limiting blocks are pressed to enter the sliding cavity, and the mounting block is inserted into the mounting groove on the crossbar. After the mounting block is fully inserted into the mounting groove, the limiting block will pop out under the action of the spring, thus fixing the crossbar to the upper end of the column. The device can then operate normally.

[0013] Preferably, the cleaning component includes a connecting block fixedly connected to the outer wall of the vertical rod. A connecting rod is rotatably connected to the connecting block via a spring shaft. A cleaning rod is rotatably connected to the end of the connecting rod away from the connecting block. A brush is fixedly connected to one side of the cleaning rod. While the solid-liquid separation cylinder rotates, the brush on one side of the cleaning rod will scrub the inner wall of the solid-liquid separation cylinder. This effectively prevents a large amount of aluminum ash residue adhering to the inner wall of the solid-liquid separation cylinder from clogging the through holes, thus ensuring the normal operation of the device. Pulling the horizontal bar upwards, when the end of the uppermost connecting rod on the cleaning component abuts against the inner wall of the solid-liquid separation cylinder, continuing to pull the horizontal bar causes the connecting rod to rotate downwards due to compression. This allows the worker to pull the cleaning component on the vertical rod out of the solid-liquid separation cylinder, facilitating cleaning. After the cleaning component is cleaned, the connecting rod is rotated downwards to a certain extent, and then the vertical rod and the cleaning component are inserted into the processing container. When the cleaning component is completely inside the solid-liquid separation cylinder, the connecting rod will rotate upwards and unfold under the action of the spring shaft. The horizontal bar is fixed to the upper end of the column by a limiting component, and the device can then operate normally.

[0014] Preferably, the number of connecting rods on the multiple sets of cleaning components is multiple, and the connecting rods are distributed linearly and equidistantly on the outer wall of the vertical rod. By setting the number of connecting rods on the cleaning components to multiple, the connecting rods can play a better stirring effect on the liquid inside the solid-liquid separation cylinder, thereby making the mixing effect of the liquid inside the solid-liquid separation cylinder better.

[0015] Preferably, the uppermost connecting rod of each of the multiple cleaning components is rotatably connected to a roller at the end furthest from the connecting block. After the limiting component is released, the horizontal bar is pulled upward. When the end of the uppermost connecting rod on the cleaning component abuts against the inner wall of the solid-liquid separation cylinder, the horizontal bar is pulled further. The connecting rod rotates downward due to the compression, thus ensuring that the worker can pull the cleaning component on the vertical rod out of the solid-liquid separation cylinder. The roller at one end of the connecting rod can effectively reduce the friction between the connecting rod and the inner wall of the solid-liquid separation cylinder. This not only makes it easier and less strenuous for people to pull the horizontal bar to pull the vertical rod and the cleaning component out of the processing container, but also effectively reduces the wear between the connecting rod and the inner wall of the solid-liquid separation cylinder, thereby effectively extending the service life of the device.

[0016] Preferably, the corners on both sides of the bottom of the inner wall of the mounting groove are beveled. By setting the corners on both sides of the bottom of the inner wall of the mounting groove as beveled, it is not only more convenient to insert the mounting block into the mounting groove, but also the bevels on both sides of the bottom of the inner wall of the mounting groove will squeeze the limiting block during the insertion process, causing it to slide automatically into the sliding cavity. This makes the installation of the cleaning component more convenient.

[0017] Preferably, the outer wall of the crossbar is fitted with a rubber sleeve, and the rubber sleeve has anti-slip texture. The rubber sleeve makes it more comfortable for the worker to hold and pull the crossbar. The anti-slip texture on the rubber sleeve increases the friction between the worker's hand and the crossbar, thereby effectively preventing the worker's hand from slipping when pulling the crossbar. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the overall structure of the processing container of this utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of the cleaning component of this utility model;

[0021] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A;

[0022] Figure 5 This utility model Figure 2 A magnified structural diagram at point B in the middle.

[0023] In the diagram: 1. Processing container; 2. Solid-liquid separation cylinder; 3. Column; 4. Horizontal bar; 5. Mounting block; 6. Mounting groove; 7. Vertical bar; 8. Sliding cavity; 9. Limiting block; 10. Spring; 11. Connecting block; 12. Connecting rod; 13. Cleaning rod; 14. Brush; 15. Roller; 16. Rubber sleeve. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 An apparatus for extracting alumina from aluminum ash slag includes a processing container 1 and a solid-liquid separation cylinder 2 rotatably connected inside the processing container 1. The solid-liquid separation cylinder 2 generates a centrifugal force, thereby improving the solid-liquid separation effect of the aluminum ash slag. A column 3 is fixedly connected to the top of the processing container 1, and a crossbar 4 is connected to the upper end of the column 3. The outer wall of the crossbar 4 is fitted with a rubber sleeve 16, which makes it more comfortable for the operator to grip and pull the crossbar 4. The rubber sleeve 16 has anti-slip textures to increase the friction between the operator's hand and the crossbar 4, effectively preventing the operator's hand from slipping when pulling the crossbar 4. The upper end of the column 3 is fixedly connected to... There is an installation block 5, and one end of the crossbar 4 is provided with an installation groove 6 that matches the installation block 5. The corners on both sides of the bottom of the inner wall of the installation groove 6 are set with bevels. Limiting components are provided on both sides of the installation block 5. The crossbar 4 is fixed to the upper end of the column 3 by the limiting components, which makes it easier to assemble and disassemble the crossbar 4. The bottom end of the crossbar 4 away from the installation groove 6 is fixedly connected to a vertical rod 7. Multiple sets of cleaning components are fixedly connected to the outer wall of the vertical rod 7. When the solid-liquid separation cylinder 2 rotates, the cleaning components on the outer wall of the vertical rod 7 can clean the inner wall of the solid-liquid separation cylinder 2. This can effectively prevent a large amount of aluminum ash slag from adhering to the inner wall of the solid-liquid separation cylinder 2 and causing blockage of the through hole.

[0026] like Figure 2 and Figure 4 As shown, the limiting component includes sliding cavities 8 on both sides of the mounting block 5. Limiting blocks 9 are slidably connected inside the sliding cavities 8. One side of the limiting block 9 extends out of the sliding cavity 8, and the other side is fixedly connected to a symmetrical spring 10. The other end of the spring 10 is fixedly connected to the inner wall of the sliding cavity 8. Pressing the limiting blocks 9 on both sides of the mounting block 5 causes them to slide into the sliding cavity 8. When the limiting blocks 9 are fully inserted into the sliding cavity 8, the horizontal bar 4 can be pulled to remove the vertical bar 7 and the cleaning component from the processing container 1, making it convenient for the staff to clean the cleaning component. After the cleaning component is cleaned, the vertical bar 7 and the cleaning component are inserted into the processing container 1. Then, the limiting blocks 9 are pressed to make them enter the sliding cavity 8. The mounting block 5 is then inserted into the mounting groove 6 on the horizontal bar 4. After the mounting block 5 is fully inserted into the mounting groove 6, the limiting blocks 9 will pop out under the action of the spring 10, thus fixing the horizontal bar 4 to the upper end of the column 3. The device can then operate normally.

[0027] like Figure 2 and Figure 3 As shown, the cleaning assembly includes a connecting block 11 fixedly connected to the outer wall of the vertical rod 7. A connecting rod 12 is rotatably connected to the connecting block 11 via a spring shaft. Rollers 15 are rotatably connected to the uppermost connecting rod 12 on each of the multiple cleaning assemblies, with the end furthest from the connecting block 11. Multiple connecting rods 12 are arranged in a linear array, equidistantly distributed on the outer wall of the vertical rod 7. A cleaning rod 13 is rotatably connected to the end of the connecting rod 12 furthest from the connecting block 11. A brush 14 is fixedly connected to one side of the cleaning rod 13. While the solid-liquid separation cylinder 2 rotates, the brush 14 on one side of the cleaning rod 13 scrubs the inner wall of the solid-liquid separation cylinder 2, effectively preventing a large amount of aluminum ash residue from adhering to the inner wall of the solid-liquid separation cylinder 2. The through hole is blocked, thus effectively ensuring the normal operation of the device. Pull the horizontal bar 4 upward. When the roller 15 at one end of the uppermost connecting rod 12 on the cleaning component abuts against the inner wall of the solid-liquid separation cylinder 2, continue to pull the horizontal bar 4. The connecting rod 12 rotates downward due to the compression, thus ensuring that the worker can pull the cleaning component on the vertical rod 7 out of the solid-liquid separation cylinder 2. This makes it convenient for the worker to clean the cleaning component. After the cleaning component is cleaned, rotate the connecting rod 12 downward to a certain extent, and then insert the vertical rod 7 and the cleaning component into the processing container 1. The connecting rod 12 will rotate upward and unfold under the action of the spring shaft. The horizontal bar 4 is fixed to the upper end of the column 3 by the limiting component, and the device can then operate normally.

[0028] As can be seen from the above, the specific embodiments of this utility model are as follows:

[0029] When using this alumina extraction device from aluminum ash slag, the aluminum ash slag and the liquid from acid leaching and desalting the aluminum ash slag are fed into the solid-liquid separation cylinder 2. The first drive motor rotates the solid-liquid separation cylinder, generating centrifugal force, thereby improving the solid-liquid separation effect of the aluminum ash slag. The acid leaching liquid from the acid leaching and desalting of the aluminum ash slag is output to the processing container through the liquid passage as the solid-liquid separation cylinder rotates centrifugally. The separated aluminum slag is discharged into the aluminum slag recovery tank through the aluminum slag outlet. The acid leaching liquid separated through the liquid passage falls onto the arc-shaped filter plate. A certain ratio of [amount missing] is added to the processing container through the addition port. For example, hydrogen peroxide and sodium hydroxide react with the acid leaching solution to obtain sodium aluminate. The sodium aluminate is then precipitated through an arc-shaped filter plate, and the resulting aluminum powder is output through the inlet of the aluminum powder recovery tank. The aluminum slag in the aluminum slag recovery tank and the aluminum powder in the aluminum powder recovery tank are then pumped out to a calcining kiln by a first and a second extraction pump. The aluminum slag and aluminum powder are calcined to produce alumina. (The part in parentheses represents prior art, which is not described in detail in this application.) While the solid-liquid separation cylinder 2 rotates, the brush 14 on one side of the cleaning rod 13 cleans the inner wall of the solid-liquid separation cylinder 2. Scrubbing is performed to effectively prevent a large amount of aluminum ash residue from adhering to the inner wall of the solid-liquid separation cylinder 2 and clogging the through holes, thus ensuring the normal operation of the device. Simultaneously, the limiting blocks 9 on both sides of the mounting block 5 are pressed to slide into the sliding cavity 8. When the limiting blocks 9 are fully inside the sliding cavity 8, pulling the horizontal bar 4 moves the vertical bar 7 and the cleaning assembly upwards. When the roller 15 at one end of the uppermost connecting rod 12 on the cleaning assembly abuts against the inner wall of the solid-liquid separation cylinder 2, continue pulling the horizontal bar 4. The connecting rod 12 rotates downwards due to the pressure, ensuring that the worker can remove the cleaning assembly from the solid-liquid separation cylinder on the vertical bar 7. Pulling out the internal part of component 2 makes it convenient for staff to clean the cleaning component. After the cleaning component is cleaned, rotate the connecting rod 12 downwards to a certain extent, and then insert the vertical rod 7 and the cleaning component into the processing container 1. The connecting rod 12 will rotate upwards and unfold under the action of the spring shaft. Then insert the mounting block 5 into the mounting groove 6 on the horizontal rod 4. After the mounting block 5 is fully inserted into the mounting groove 6, the limiting block 9 will pop out under the action of the spring 10 to fix the horizontal rod 4 to the upper end of the column 3. The device can then operate normally, which can effectively ensure the cleaning effect of the cleaning component on the inside of the solid-liquid separation cylinder 2.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An apparatus for extracting alumina from aluminum ash slag, comprising a processing container (1) and a solid-liquid separation cylinder (2) rotatably connected inside the processing container (1), characterized in that, A column (3) is fixedly connected to the top of the processing container (1). A horizontal bar (4) is connected to the upper end of the column (3). An installation block (5) is fixedly connected to the upper end of the column (3). An installation groove (6) matching the installation block (5) is opened at one end of the horizontal bar (4). Limiting components are provided on both sides of the installation block (5). A vertical bar (7) is fixedly connected to the bottom of the horizontal bar (4) away from the installation groove (6). Multiple cleaning components are fixedly connected to the outer wall of the vertical bar (7).

2. The apparatus for extracting alumina from aluminum ash slag according to claim 1, characterized in that: The limiting component includes sliding cavities (8) opened on both sides of the mounting block (5). A limiting block (9) is slidably connected inside the sliding cavity (8). One side of the limiting block (9) extends out of the sliding cavity (8), and the other side is fixedly connected with a symmetrical spring (10). The other end of the spring (10) is fixedly connected to the inner wall of the sliding cavity (8).

3. The apparatus for extracting alumina from aluminum ash slag according to claim 1, characterized in that: The cleaning assembly includes a connecting block (11) fixedly connected to the outer wall of the vertical rod (7), a connecting rod (12) rotatably connected to the connecting block (11) via a spring shaft, a cleaning rod (13) rotatably connected to the end of the connecting rod (12) away from the connecting block (11), and a brush (14) fixedly connected to one side of the cleaning rod (13).

4. The apparatus for extracting alumina from aluminum ash slag according to claim 3, characterized in that: The number of connecting rods (12) on the multiple cleaning components is set to multiple, and the connecting rods (12) are distributed in a linear array at equal intervals on the outer wall of the vertical rod (7).

5. The apparatus for extracting alumina from aluminum ash slag according to claim 3, characterized in that: Each of the uppermost connecting rods (12) on the multiple cleaning components has a roller (15) rotatably connected to the end away from the connecting block (11).

6. The apparatus for extracting alumina from aluminum ash slag according to claim 1, characterized in that: The corners on both sides of the bottom of the inner wall of the mounting groove (6) are all set with slopes.

7. The apparatus for extracting alumina from aluminum ash slag according to claim 1, characterized in that: The outer wall of the crossbar (4) is fitted with a rubber sleeve (16), and the rubber sleeve (16) has anti-slip texture.

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