Carbonizing tower for lithium bicarbonate production

Abstract

The utility model discloses a carbonization tower for lithium bicarbonate production, which comprises a tower body, a gas supply unit and a stirring unit, the top of the tower body is provided with a feed end, and the bottom of the tower body is provided with a discharge end; the gas supply unit comprises a first mounting ring, a gas extraction piece and a carbon dioxide generator, the first mounting ring is fixedly connected with the side wall of the top in the tower body, an annular space is defined between the first mounting ring and the inner side wall of the tower body, a plurality of gas guide pipes are fixedly arranged on the first mounting ring at intervals in the circumferential direction, and one end of each gas guide pipe communicates with the annular space; the other end of the carbon dioxide generator extends to the inner bottom of the tower body; an air outlet of the carbon dioxide generator is communicated with the annular space through an air extractor; the stirring unit is connected with the tower body and is used for stirring the lithium carbonate solution in the tower body. The problem that in the prior art, lithium carbonate slurry and CO2 gas are not in sufficient contact is solved.

Description

Technical Field

[0001] This utility model relates to the field of carbonization tower technology, specifically to a carbonization tower for lithium bicarbonate production. Background Technology

[0002] Carbonization towers are important pieces of equipment in chemical production, primarily used for gas-liquid contact reactions, especially chemical reactions involving carbon dioxide (CO2). Industrially, carbonization towers are widely used in industries such as alkali production, ammonia production, and carbonated beverage manufacturing.

[0003] In the existing technology, when producing lithium bicarbonate, lithium carbonate slurry needs to be added into the tower first, and CO2 gas is supplied to the bottom of the tower through a single gas pipe. The lithium carbonate slurry in the tower is stirred by a stirring mechanism. Because CO2 gas is supplied to the tower through a single gas pipe, some lithium carbonate slurry cannot fully contact the CO2 gas, resulting in a long carbonation time and reducing the production rate of lithium bicarbonate. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and provide a carbonation tower for lithium bicarbonate production, which solves the problem of insufficient contact between lithium carbonate slurry and CO2 gas in the prior art.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a carbonation tower for lithium bicarbonate production, including a tower body, a gas supply unit, and a stirring unit. The top of the tower body is provided with a feed end, and the bottom of the tower body is provided with a discharge end. The gas supply unit includes a first mounting ring, a gas extraction component, and a carbon dioxide generator. The first mounting ring is fixedly connected to the side wall of the top of the tower body, and an annular space is formed between the first mounting ring and the inner side wall of the tower body. A plurality of gas guide pipes are fixedly fixed at intervals along the circumference of the first mounting ring. One end of each gas guide pipe communicates with the annular space, and the other end extends to the inner bottom of the tower body. The gas outlet of the carbon dioxide generator communicates with the annular space through the gas extraction component. The stirring unit is connected to the tower body and is used to stir the lithium carbonate slurry in the tower body.

[0007] In this specific embodiment, the top of the tower body is also provided with an air outlet, which is connected to the air inlet of the air extraction component via a pipeline.

[0008] In this specific embodiment, the cross-section of the annular space is a right-angled triangle or a right-angled trapezoid, and the inner diameter of the first mounting ring facing the feed end is gradually increased.

[0009] In this specific embodiment, the stirring unit includes a driving component and a stirring component. The driving component is fixedly disposed on the top of the tower body, and the stirring component is disposed inside the tower body. The stirring component is fixedly connected to the output end of the driving component.

[0010] In this specific embodiment, the stirring component includes a rotating rod and a plurality of stirring blades. The rotating rod is coaxially disposed in the tower body and fixedly connected to the output end of the driving component. The plurality of stirring blades are fixedly disposed on the rotating rod at intervals.

[0011] In this specific embodiment, a cleaning unit is also included. The cleaning unit includes a water storage tank, a liquid extraction component, and a second mounting ring. The second mounting ring is fixedly connected to the side wall at the top of the tower body and is located below the first mounting ring. The inner diameter of the second mounting ring is larger than the inner diameter of the first mounting ring. An annular liquid collection cavity is formed between the second mounting ring and the side wall of the tower body. Multiple nozzles communicating with the annular liquid collection cavity are circumferentially spaced on the second mounting ring. The annular liquid collection cavity is connected to the water storage tank via the liquid extraction component. The water storage tank is used to hold the cleaning liquid.

[0012] In this specific embodiment, the nozzles of the plurality of spray heads are all arranged facing the inner sidewall of the tower body.

[0013] In this specific embodiment, all of the stirring blades are located below the second mounting ring.

[0014] In this specific embodiment, the air extraction component is a Roots blower.

[0015] In this specific embodiment, the outlet of the carbon dioxide generator is equipped with a regulating valve.

[0016] Compared with the prior art, the present invention provides a carbonization tower for lithium bicarbonate production. A first mounting ring is fixedly connected to the side wall at the top of the tower body. An annular space is formed between the first mounting ring and the inner side wall of the tower body. Multiple gas guide pipes are fixedly fixed at intervals along the circumference of the first mounting ring. One end of the gas guide pipe is connected to the annular space, and the other end extends to the bottom of the tower body. A carbon dioxide generator is connected to the annular space through an exhaust device. CO2 gas is transported into the tower body through the multiple gas guide pipes. A stirring unit is used to stir the lithium carbonate slurry in the tower body, so that the CO2 gas and the lithium carbonate slurry are in full contact, ensuring that the lithium carbonate slurry can be completely carbonized. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a carbonization tower for lithium bicarbonate production provided in an embodiment of this utility model;

[0018] Figure 2This is a partial internal structure diagram of a carbonization tower for lithium bicarbonate production provided in an embodiment of this utility model;

[0019] Figure 3 yes Figure 2 Enlarged view of region A in the middle;

[0020] Figure 4 This is a schematic diagram of the structure of the first mounting ring provided in an embodiment of the present invention. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0022] To address the technical problem of insufficient contact between lithium carbonate slurry and CO2 gas in existing technologies, this invention provides a carbonation tower for lithium bicarbonate production. Multiple gas guide pipes are inserted into the lithium carbonate slurry along the circumference of the tower body, while simultaneously stirring the lithium carbonate slurry to ensure sufficient contact with CO2 gas.

[0023] Please see Figure 1-Figure 4 , Figure 1-Figure 4 A carbonation tower for lithium bicarbonate production according to one embodiment of the present invention includes a tower body 1, a gas supply unit 2, and a stirring unit 3. The top of the tower body 1 is provided with a feed end 11, and the bottom of the tower body 1 is provided with a discharge end 12. The gas supply unit 2 includes a first mounting ring 21, a gas extraction component 22, and a carbon dioxide generator 23. The first mounting ring 21 is fixedly connected to the inner top side wall of the tower body 1, and an annular space is formed between the first mounting ring 21 and the inner side wall of the tower body 1. A plurality of gas guide pipes 24 are fixedly fixed at intervals along the circumference of the first mounting ring 21. One end of each gas guide pipe 24 communicates with the annular space, and the other end extends to the inner bottom of the tower body 1. The carbon dioxide generator 23 communicates with the annular space via the gas extraction component 22. The stirring unit 3 is connected to the tower body 1 and is used to stir the lithium carbonate slurry in the tower body 1.

[0024] It should be noted that the gas guide pipe 24 is cylindrical in shape and is inserted into the lithium carbonate slurry along the height direction of the tower body 1. This can prevent the lithium carbonate slurry that has not been fully carbonized from depositing in the gas guide pipe 24 under the action of gravity due to the lack of gas agitation, thus avoiding blockage of the gas guide pipe 24.

[0025] Based on the above scheme, in order to recycle the unreacted CO2 gas in the tower body, the top of the tower body 1 is provided with an outlet 13, which is connected to the air inlet of the extraction component 22 via a pipeline.

[0026] It should be noted that unreacted CO2 gas inside the tower body 1 can be discharged through the outlet end 13 to the inlet of the extraction component 22, and then transported back into the tower body 1 for recycling via the extraction component 22.

[0027] In this specific embodiment, the extraction component 22 is a Roots blower, and the outlet of the carbon dioxide generator 23 is equipped with a regulating valve, which can regulate the gas flow rate delivered to the tower body 1.

[0028] In this specific embodiment, the cross-section of the annular space is a right-angled trapezoid, which can effectively prevent the first mounting ring 21 from blocking the lithium carbonate slurry when adding lithium carbonate slurry into the tower body, thus preventing some lithium carbonate slurry from falling to the bottom of the tower body 1. Of course, in other embodiments, the cross-section of the annular space can also be a right-angled triangle. Specifically, the inner diameter of the first mounting ring 21 towards the feed end 11 is gradually increased.

[0029] It should be noted that the stirring unit 3 is not limited to a specific structure. In this specific embodiment, the stirring unit 3 includes a driving component 31 and a stirring component 32. The driving component 31 is fixedly disposed on the top of the tower body 1, and the stirring component 32 is disposed inside the tower body 1. The stirring component 32 is fixedly connected to the output end of the driving component 31.

[0030] Specifically, the stirring component 32 includes a rotating rod 321 and a plurality of stirring blades 322. The rotating rod 321 is coaxially disposed inside the tower body 1 and fixedly connected to the output end of the driving component 31. The plurality of stirring blades 322 are fixedly disposed at intervals on the rotating rod 321, wherein the plurality of stirring blades 322 are all located below the second mounting ring 43.

[0031] Based on the above scheme, in order to facilitate the rinsing of the inner wall of the tower body 1, a cleaning unit 4 is specifically included. The cleaning unit 4 includes a water storage tank 41, a liquid extraction component 42, and a second mounting ring 43. The second mounting ring 43 is fixedly connected to the side wall of the top of the inner wall of the tower body 1, and the second mounting ring 43 is located below the first mounting ring 21. The inner diameter of the second mounting ring 43 is larger than the inner diameter of the first mounting ring 21. An annular liquid collection cavity is formed between the second mounting ring 43 and the side wall of the tower body 1. Multiple nozzles 44 that communicate with the annular liquid collection cavity are circumferentially spaced on the second mounting ring 43. The annular liquid collection cavity is connected to the water storage tank 41 via the liquid extraction component 42. The water storage tank 41 is used to hold the cleaning liquid.

[0032] It should be noted that the nozzles of the multiple spray heads 44 are all arranged facing the inner wall of the tower body 1. The cleaning liquid in the water storage tank 41 is pumped to the second mounting ring 43 by the liquid pumping component 42 and sprayed out through the multiple spray heads 44, which can rinse the inner wall of the tower body 1.

[0033] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A carbonization tower for lithium bicarbonate production, comprising a tower body, a gas supply unit, and a stirring unit, wherein the top of the tower body is provided with a feed end, and the bottom of the tower body is provided with a discharge end; characterized in that, The gas supply unit includes a first mounting ring, an air extraction component, and a carbon dioxide generator. The first mounting ring is fixedly connected to the side wall at the top of the tower body, and an annular space is formed between the first mounting ring and the inner side wall of the tower body. Multiple air guide pipes are fixedly installed at intervals along the circumference of the first mounting ring. One end of each air guide pipe communicates with the annular space, and the other end extends to the inner bottom of the tower body. The outlet of the carbon dioxide generator is connected to the annular space via the air extraction component. The stirring unit is connected to the tower body and is used to stir the lithium carbonate slurry inside the tower body.

2. The carbonization tower for lithium bicarbonate production according to claim 1, characterized in that, The top of the tower body is also provided with an air outlet, which is connected to the air inlet of the air extraction component via a pipeline.

3. The carbonization tower for lithium bicarbonate production according to claim 1, characterized in that, The cross-section of the annular space is a right-angled triangle or a right-angled trapezoid, and the inner diameter of the first mounting ring facing the feed end gradually increases.

4. The carbonization tower for lithium bicarbonate production according to claim 1, characterized in that, The stirring unit includes a driving component and a stirring component. The driving component is fixedly mounted on the top of the tower body, and the stirring component is disposed inside the tower body. The stirring component is fixedly connected to the output end of the driving component.

5. A carbonization tower for lithium bicarbonate production according to claim 4, characterized in that, The stirring component includes a rotating rod and multiple stirring blades. The rotating rod is coaxially disposed in the tower body and fixedly connected to the output end of the driving component. The multiple stirring blades are fixedly disposed on the rotating rod at intervals.

6. A carbonization tower for lithium bicarbonate production according to claim 5, characterized in that, It also includes a cleaning unit, which comprises a water storage tank, a liquid extraction component, and a second mounting ring. The second mounting ring is fixedly connected to the side wall at the top of the tower body and is located below the first mounting ring. The inner diameter of the second mounting ring is larger than the inner diameter of the first mounting ring. An annular liquid collection cavity is formed between the second mounting ring and the side wall of the tower body. Multiple nozzles communicating with the annular liquid collection cavity are circumferentially spaced on the second mounting ring. The annular liquid collection cavity is connected to the water storage tank via the liquid extraction component. The water storage tank is used to hold the cleaning liquid.

7. A carbonization tower for lithium bicarbonate production according to claim 6, characterized in that, The nozzles of the multiple nozzles are all positioned facing the inner wall of the tower body.

8. A carbonization tower for lithium bicarbonate production according to claim 6, characterized in that, The plurality of stirring blades are located below the second mounting ring.

9. A carbonization tower for lithium bicarbonate production according to claim 1, characterized in that, The extraction component is a Roots blower.

10. A carbonization tower for lithium bicarbonate production according to claim 1, characterized in that, The outlet of the carbon dioxide generator is equipped with a regulating valve.

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