Carbon separation tank device for aluminum oxide production
By designing a carbon trough separation device in the alumina production device, the uniform reaction between carbon dioxide and solution and the efficient precipitation of aluminum ions is achieved, and the problems of uneven mixing and low precipitation efficiency in the prior art are solved, and the safety of the equipment is improved. Productivity.
Patent Information
- Application Number
- CN202520046307.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2035-01-09
AI Technical Summary
In the existing alumina production equipment, the uneven mixing of carbon dioxide and solution leads to low precipitation efficiency of aluminum ions and easy shaking of ventilation pipes, affecting the safe operation of the equipment.
Design a carbon trough division device, where carbon dioxide is directly passed into the bottom of the inner cavity of the carbon trough body, and carbon dioxide is uniformly introduced into the inner cavity of the carbon trough through multiple carbon trough tubes, reserve reaction time, and improve precipitation efficiency with the mixing component .
The uniform reaction between carbon dioxide and solution is achieved, the precipitation efficiency of aluminum ions is improved, and the safety and stability of the equipment are enhanced.
Smart Images
Figure CN222469080U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of aluminum oxide production devices, in particular to a carbon trough separation device for aluminum oxide production. Background Art
[0002] With the continuous development of industrial technology, the quality and output requirements of products such as alumina are constantly increasing. The design and technology of the carbon separation tank are mainly used to decompose compound solutions containing aluminum. By introducing carbon dioxide gas into the solution, aluminum is precipitated in the form of alumina to achieve separation of aluminum from other impurities, thereby obtaining a relatively pure alumina product. However, in the production and preparation of alumina, a vertically arranged ventilation pipe is usually used in the prior art to send carbon dioxide gas to the bottom of the solution, but this operation is not conducive to the uniform mixing of carbon dioxide and solution. Although the existing reactor is equipped with a stirring device, due to the large volume of the reactor, the diameter is usually about 10 meters. If the position of carbon dioxide entering the reactor is single, it is still not conducive to the full and uniform mixing of carbon dioxide gas and solution, and the reaction time will be longer; in addition, in the process of introducing carbon dioxide gas into the reactor, the ventilation pipe is also prone to shaking, and the stirring mechanism in the reactor is also easily shaken by the impact of the solution during the stirring process, which is not conducive to the safe operation of the equipment as a whole. Utility Model Content
[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a carbon separation tank device for alumina production. Carbon dioxide is directly introduced into the bottom of the inner cavity of the carbon separation tank body to ensure that the carbon dioxide effectively reacts with the compound solution containing aluminum, so that the aluminum ions in the solution are precipitated out in the form of alumina. At the same time, the device can evenly introduce carbon dioxide into various parts of the inner cavity of the carbon separation tank body, and reserve a certain reaction time to ensure the effective precipitation of aluminum ions. In addition, the device is also assisted by a stirring component to improve the aluminum ion precipitation efficiency, facilitate the production and preparation of alumina, and can effectively solve the problems in the background technology.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A carbon separation trough device for alumina production comprises a carbon separation trough body with an open top, a heat preservation cover for sealing the open top of the carbon separation trough body, a carbon separation tank installed on the top of the heat preservation cover above the carbon separation trough body, a carbon dioxide inlet pipe connected with the inner cavity of the carbon separation tank is installed on the top of the carbon separation tank, a carbon separation tube connected with the inner cavity of the carbon separation tank is installed on the side of the carbon separation tank, an end of the carbon separation tube away from the carbon separation tank passes through and extends into the carbon separation trough body, and the end of the carbon separation tube away from the carbon separation tank is located at the lower part of the inner cavity of the carbon separation trough body, a plurality of positioning members for positioning the carbon separation tube are installed on the inner side of the carbon separation trough body, and a stirring assembly is arranged in the carbon separation trough body.
[0006] As a preferred technical solution of the utility model, the positioning member includes a fixing seat fixed on the inner wall of the carbon dividing groove body, a positioning sleeve is fixedly mounted on the fixing seat, and the carbon dividing pipe is installed in the positioning sleeve.
[0007] As a preferred technical solution of the utility model, the positioning sleeve is arranged in an hourglass shape, both ends of the positioning sleeve are open, and the positioning pieces are evenly arranged along the height direction of the carbon slot body.
[0008] As a preferred technical solution of the utility model, a plurality of carbon branch tubes are provided, and the plurality of carbon branch tubes are evenly distributed in the carbon branch tank body.
[0009] As a preferred technical solution of the utility model, the carbon branch pipe is formed by splicing a plurality of pipes, and two adjacent pipes are connected and fixed by a connecting flange.
[0010] As a preferred technical solution of the utility model, the stirring assembly includes a stirring shaft rotatably installed in the carbon tank body, the end of the stirring shaft is rotatably connected to the carbon tank body through a bearing assembly, the stirring shaft is equipped with a stirring blade located in the lower part of the inner cavity of the carbon tank body, and a driving assembly for driving the stirring assembly is arranged above the carbon tank body.
[0011] As a preferred technical solution of the utility model, the driving assembly includes a driving motor installed above the carbon tank body, and a reducer is installed on the output shaft of the driving motor, and the output shaft of the reducer is fixedly connected to the top of the stirring shaft.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] In the carbon separation tank device for alumina production of the utility model, carbon dioxide is directly introduced into the bottom of the inner cavity of the carbon separation tank body, ensuring that the carbon dioxide effectively reacts with the compound solution containing aluminum, so that the aluminum ions in the solution are precipitated out in the form of alumina. At the same time, in this device, carbon dioxide can be evenly introduced into various places in the inner cavity of the carbon separation tank body, and a certain reaction time is reserved to ensure the effective precipitation of aluminum ions. In addition, this device is also assisted by a stirring component to improve the aluminum ion precipitation efficiency, which is convenient for the production and preparation of alumina. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure of the utility model;
[0015] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;
[0016] Figure 3 It is a schematic diagram of the top structure of the utility model.
[0017] In the figure: 1 carbon separation tank body, 2 insulation cover, 3 carbon separation tank, 4 carbon dioxide intake pipe, 5 carbon separation pipe, 6 connecting flange, 7 fixing seat, 8 positioning sleeve, 9 driving motor, 10 reducer, 11 stirring shaft, 12 bearing assembly, 13 stirring blade. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.
[0019] See also Figure 1-3The utility model provides a technical solution: a carbon separation tank device for alumina production, comprising a carbon separation tank body 1 with an open top, the carbon separation tank body 1 is used to store a compound solution containing aluminum, and at the same time provides a place for the reaction of the compound solution containing aluminum with carbon dioxide, so as to facilitate the precipitation of aluminum ions in the compound solution, and a heat-insulating cover 2 is provided on the top of the carbon separation tank body 1 to seal the open top, the temperature of the solution inside the carbon separation tank body 1 is about 70°C, and the heat-insulating cover 2 is provided to reduce heat loss, and at the same time, the heat-insulating cover 2 is used to isolate the internal heat of the carbon separation tank body 1 to prevent personnel from being scalded by high temperature when working on the top of the carbon separation tank body 1. It should be noted that the heat-insulating cover 2 is composed of a heat-insulating material and a supporting steel frame. The supporting steel frame is convenient for the installation of the heat-insulating material on the one hand, and the supporting steel frame is convenient for personnel to perform appropriate operations on the top of the carbon separation tank body 1 on the other hand, and a sampling port, a pressure relief port and an observation port are reserved on the heat-insulating cover 2, and each reserved window can be shielded and sealed by a cover plate, and the cover plate can be opened when the window is used.
[0020] A carbon separation tank 3 installed on the top of the insulation cover 2 is arranged above the carbon separation tank body 1, and a carbon dioxide inlet pipe 4 connected to its inner cavity is installed on the top of the carbon separation tank 3, and a carbon separation tube 5 connected to its inner cavity is installed on the side of the carbon separation tank 3. The end of the carbon separation tube 5 away from the carbon separation tank 3 penetrates and extends into the carbon separation tank body 1, and the external carbon dioxide gas is transported to the carbon separation tank 3 through the carbon dioxide inlet pipe 4, and the carbon separation tank 3 transports the carbon dioxide inside it to the carbon separation tank body 1 through the carbon separation tube 5, so that the carbon dioxide reacts with the compound solution containing aluminum in the carbon separation tank body 1 to generate aluminum oxide, and the end of the carbon separation tube 5 away from the carbon separation tank 3 is located at the lower part of the inner cavity of the carbon separation tank body 1, so as to ensure that the carbon dioxide effectively reacts with the aluminum-containing compound solution and facilitate the oxidation and precipitation of aluminum ions in the compound solution.
[0021] A plurality of carbon branch tubes 5 are provided, and the plurality of carbon branch tubes 5 are evenly distributed in the carbon branch tank body 1, so that the carbon branch tank 3 can evenly introduce carbon dioxide gas into various places inside the carbon branch tank body 1, thereby ensuring the effective precipitation of aluminum ions in the aluminum compound solution. Preferably, four carbon branch tubes 5 are provided, and the angle between two adjacent carbon branch tubes 5 in the carbon branch tank body 1 is 90°. The carbon branch tube 5 is formed by splicing a plurality of pipes, and the two adjacent pipes are connected and fixed by a connecting flange 6. When the carbon branch tube 5 is provided and installed, an appropriate number of pipes can be selected for splicing and assembly according to the height of the carbon branch tank body 1, so that the carbon dioxide gas can be introduced into the bottom of the inner cavity of the carbon branch tank body 1 through the carbon branch tube 5.
[0022] A plurality of positioning members for positioning the carbon branch tube 5 are installed on the inner side of the carbon branch tank body 1. The positioning members include a fixing seat 7 fixed on the inner wall of the carbon branch tank body 1. A positioning sleeve 8 is fixedly installed on the fixing seat 7. The carbon branch tube 5 is installed in the positioning sleeve 8. The positioning sleeve 8 is provided to limit the position of the carbon branch tube 5 to prevent the carbon branch tube 5 from being squeezed by the compound solution and causing its installation position to change, which is convenient for the installation and use of the carbon branch tube 5. Preferably, the positioning sleeve 8 is arranged in an hourglass shape, that is, both ends of the positioning sleeve 8 are open, which is convenient for placing the carbon branch tube 5 during installation. It is installed in the positioning sleeve 8. Specifically, the upper and lower ends of the hourglass-shaped positioning sleeve 8 have larger openings, so the carbon branch tube 5 is easy to pass through the positioning sleeve 8 from top to bottom. At the same time, since the middle part of the hourglass-shaped positioning sleeve 8 has a smaller diameter than the openings at both ends, it is convenient to limit the carbon branch tube 5 and reduce the shaking amplitude of the carbon branch tube 5. At the same time, the hourglass-shaped positioning sleeve 8 is also convenient for installation with the fixing seat 7; the positioning pieces are evenly arranged along the height direction of the carbon branch slot body 1, and the arranged several positioning pieces are used to improve the structural strength of the carbon branch tube 5 after installation.
[0023] A stirring assembly is arranged in the carbon tank body 1, and the stirring assembly includes a stirring shaft 11 rotatably installed in the carbon tank body 1, and the end of the stirring shaft 11 is rotatably connected to the carbon tank body 1 through a bearing assembly 12. A stirring blade 13 located at the lower part of the inner cavity of the carbon tank body 1 is installed on the stirring shaft 11, and a driving assembly for driving the stirring assembly is arranged above the carbon tank body 1. The driving assembly drives the stirring shaft 11 to rotate, so that the stirring blade 13 stirs the solution in the carbon tank body 1 to ensure that the carbon dioxide and the aluminum compound solution fully react. The reaction efficiency is improved by stirring. In addition, excessive precipitation of aluminum oxide is avoided by stirring, so that the aluminum oxide precipitate can be extracted from the carbon tank body 1 through the pump body.
[0024] The driving assembly includes a driving motor 9 installed above the carbon tank body 1, and a reducer 10 is installed on the output shaft of the driving motor 9. The output shaft of the reducer 10 is fixedly connected to the top of the stirring shaft 11. The reducer 10 is used to increase the torque to facilitate the driving motor 9 to drive the stirring shaft 11 to rotate.
[0025] The undisclosed parts in the present utility model are all prior art, and their specific structures, materials and working principles are not described in detail. Although the embodiments of the present utility model have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the attached claims and their equivalents.
Claims
1. A carbon separation tank device for alumina production, comprising a carbon separation tank body (1) with an open top, characterized in that: The top of the carbon separation tank body (1) is provided with a heat-insulating cover (2) for sealing the opening; a carbon separation tank (3) mounted on the top of the heat-insulating cover (2) is provided above the carbon separation tank body (1); a carbon dioxide inlet pipe (4) connected to the inner cavity of the carbon separation tank (3) is installed on the top; a carbon separation pipe (5) connected to the inner cavity of the carbon separation tank (3) is installed on the side of the carbon separation tank (3); an end of the carbon separation pipe (5) away from the carbon separation tank (3) penetrates and extends into the carbon separation tank body (1); an end of the carbon separation pipe (5) away from the carbon separation tank (3) is located at the lower part of the inner cavity of the carbon separation tank body (1); a plurality of positioning members for positioning the carbon separation pipe (5) are installed on the inner side of the carbon separation tank body (1); and a stirring assembly is provided in the carbon separation tank body (1).
2. The carbon separation tank device for alumina production according to claim 1, characterized in that: The positioning member comprises a fixing seat (7) fixed on the inner wall of the carbon dividing slot body (1), a positioning sleeve (8) is fixedly mounted on the fixing seat (7), and the carbon dividing tube (5) is mounted in the positioning sleeve (8).
3. The carbon separation tank device for alumina production according to claim 2, characterized in that: The positioning sleeve (8) is arranged in an hourglass shape, and both ends of the positioning sleeve (8) are open. The positioning pieces are evenly arranged along the height direction of the carbon slot body (1).
4. The carbon separation tank device for alumina production according to claim 1, characterized in that: A plurality of carbon branch tubes (5) are provided, and the plurality of carbon branch tubes (5) are evenly distributed in the carbon branch tank body (1).
5. The carbon separation tank device for alumina production according to claim 1 or 4, characterized in that: The carbon branch pipe (5) is formed by splicing a plurality of pipes, and two adjacent pipes are connected and fixed via a connecting flange (6).
6. The carbon separation tank device for alumina production according to claim 1, characterized in that: The stirring assembly comprises a stirring shaft (11) rotatably mounted in a carbon separation tank body (1); the end of the stirring shaft (11) is rotatably connected to the carbon separation tank body (1) via a bearing assembly (12); a stirring blade (13) located at the lower part of the inner cavity of the carbon separation tank body (1) is mounted on the stirring shaft (11); and a driving assembly for driving the stirring assembly to work is arranged above the carbon separation tank body (1).
7. The carbon separation tank device for alumina production according to claim 6, characterized in that: The driving assembly comprises a driving motor (9) mounted above the carbon separation tank body (1), and a reducer (10) is mounted on the output shaft of the driving motor (9), and the output shaft of the reducer (10) is fixedly connected to the top end of the stirring shaft (11).