carbonization column

Abstract

The application provides a carbonization tower, belonging to the technical field of chemical industry, comprising a tank body, a gas collecting pipe and multiple-component gas pipes; the tank body adopts a hollow structure to form an inner cavity; a gas inlet is arranged at the bottom of the tank body and communicates with the inner cavity, and the gas inlet is used for supplying carbon dioxide; the gas collecting pipe is arranged in the inner cavity and axially parallel to the inner cavity and communicates with the gas inlet; the gas collecting pipe can rotate around its axis and is drivingly connected with a rotating driving member; the multiple-component gas pipes are arranged along the axial direction of the gas collecting pipe; each component gas pipe comprises multiple gas pipes arranged along the circumferential direction of the gas collecting pipe; each gas pipe is connected with the gas collecting pipe and extends outward along the radial direction of the gas collecting pipe to move synchronously with the rotation of the gas collecting pipe; the length of each component gas pipe is different, and each spiral gas flow surrounds the gas inlet. The carbonization tower provided by the application can form spiral gas flows through the multiple-component gas pipes, thereby ensuring the uniform distribution of the gas concentration in the tank.

Description

Technical Field

[0001] This utility model belongs to the field of chemical technology, and more specifically, it relates to a carbonization tower. Background Technology

[0002] The carbonation tower is an important piece of equipment for producing calcium carbonate. The carbonation tower mainly uses carbon dioxide gas and calcium hydroxide suspension (lime milk) to carry out a carbonation reaction inside the tower to generate calcium carbonate precipitate. The obtained calcium carbonate precipitate is then processed by subsequent filtration, drying and other processes to obtain the finished calcium carbonate product.

[0003] Currently, the carbon dioxide required for the carbonization reaction usually enters from the air inlet at the bottom of the carbonization tower, while lime slurry is sprayed down from the top of the carbonization tower. The gas and liquid phases come into countercurrent contact inside the tower, thus causing the carbonization reaction.

[0004] The inventors discovered that the distribution of carbon dioxide across the cross-section of the carbonization tower is uneven; typically, the carbon dioxide concentration is higher near the central axis of the inlet and lower further away. This uneven distribution of carbon dioxide, coupled with the downward diffusion of the sprayed lime slurry in an umbrella-like pattern, leads to slow reactions in localized areas within the tower, ultimately resulting in reduced carbonization efficiency. Utility Model Content

[0005] The purpose of this application is to provide a carbonization tower to solve the technical problem that existing carbonization towers have uneven carbon dioxide distribution and fail to achieve planar gas distribution.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: A carbonization tower is provided, comprising: The tank body has a hollow internal structure to form an inner cavity; the bottom of the tank body has an air inlet that communicates with the inner cavity and is used to allow carbon dioxide to enter. A gas collecting pipe is disposed within the inner cavity and parallel to the axial direction of the inner cavity, and is also connected to the air inlet; the gas collecting pipe is rotatable about its central axis and is connected to a rotation drive component; and The gas distribution tubes are arranged at intervals along the axial direction of the gas collecting tube; each group of gas distribution tubes includes multiple gas distribution tubes arranged at intervals along the circumference of the gas collecting tube, each gas distribution tube is connected to the gas collecting tube and extends outward along the radial direction of the gas collecting tube so as to move synchronously with the rotation of the gas collecting tube. The lengths of each set of air distribution pipes are different, so as to form multiple sets of spiral airflows arranged along the axial direction of the air collection pipe, and each set of spiral airflows is arranged around the air inlet.

[0007] In one possible implementation, the gas collecting pipe has a plurality of support discs spaced apart along its axial direction; the plurality of support discs correspond one-to-one with a plurality of sets of gas distributing pipes, and each support disc is fixedly sleeved on the gas collecting pipe; The support plate has a plurality of mounting holes spaced apart along its circumference to accommodate the insertion of a plurality of corresponding air distribution pipes; and the outer surface of the support plate is aligned with the exhaust end of the air distribution pipe.

[0008] In one possible implementation, the outer diameter of the support disk gradually decreases from bottom to top.

[0009] In one possible implementation, the mounting hole includes: A straight cavity is formed on the inner circumferential surface of the support plate; and A bent cavity is formed on the bottom surface of the support plate and communicates with the straight cavity; In particular, the bend in the gas collection pipe is inclined toward the central axis of the gas collection pipe along the direction of gas inlet.

[0010] In one possible implementation, each of the support disks has multiple dials, and each dial is fixedly connected to the outer peripheral surface of the support disk.

[0011] In one possible implementation, the outer diameter of the plurality of support discs gradually decreases along the direction of gas flow in the gas collecting pipe.

[0012] In one possible implementation, the carbonization tower further includes: Multiple anti-reverse components are provided, each corresponding to one of the multiple gas distribution pipes; each anti-reverse component is respectively disposed in the gas distribution pipe; when the pressure in the gas distribution pipe is greater than the pressure inside the tank, the anti-reverse component is adapted to connect the gas distribution pipe and the tank to allow gas in the gas distribution pipe to pass through; when the pressure in the gas distribution pipe is less than the pressure inside the tank, the anti-reverse component is adapted to block the gas distribution pipe to prevent material in the tank from entering the gas distribution pipe.

[0013] In one possible implementation, the anti-reverse component includes: A baffle ring is coaxially disposed inside the gas distribution pipe. The outer peripheral wall of the baffle ring is sealed to the inner wall of the gas distribution pipe, and the baffle ring has a through hole for gas to pass through. A sealing plate is slidably connected to the gas distribution pipe along its axial direction within the pipe, and the sealing plate is located on the side of the retaining ring facing away from the outlet end of the gas distribution pipe; the diameter of the sealing plate is smaller than the inner diameter of the gas distribution pipe, and the diameter of the sealing plate is larger than the diameter of the through hole; and A compression spring is coaxially disposed inside the air distribution pipe; one end of the compression spring is connected to the side of the sealing plate facing away from the retaining ring, and the other end is connected to the inner wall of the air distribution pipe; the compression spring is used to drive the sealing plate to move towards the retaining ring, so as to close the through hole.

[0014] In one possible implementation, the lower end of the gas collecting pipe extends through the air inlet, and the rotation drive component includes: The first sprocket is coaxially mounted at the extended end of the gas collecting pipe; A second sprocket is disposed outside the tank body, and is horizontally spaced from the first sprocket, with the axis of the second sprocket parallel to the axis of the first sprocket; the second sprocket is driven by a motor to rotate around its own axis; and A chain is fitted onto the first sprocket and the second sprocket to synchronize the rotation of the first sprocket and the second sprocket.

[0015] In one possible implementation, each of the gas distribution pipes is provided with a filter screen at its outlet.

[0016] In this embodiment, carbon dioxide gas is introduced through the inlet at the bottom of the tank and directly enters the gas collecting pipe connected to the inlet. The rotation drive component drives the gas collecting pipe to rotate around its central axis. Since the gas distribution pipe is fixedly connected to the gas collecting pipe, the gas distribution pipe rotates synchronously with the gas collecting pipe. The carbon dioxide in the gas collecting pipe is ejected outward through the radially extending gas distribution pipe. Due to the different lengths of each gas distribution pipe and the rotation of the gas distribution pipe with the gas collecting pipe, the ejected gas flow trajectory exhibits the following characteristics: multiple gas distribution pipes in the same group will form annular airflow on the same horizontal plane due to rotation; the gas distribution pipes in different groups have different lengths, different radii of the annular airflow, and different axial positions, which eventually superimpose to form a multi-layered spiral airflow arranged along the axial direction of the gas collecting pipe. The multi-layered spiral airflow covers different areas inside the tank, making the carbon dioxide distribution more uniform and allowing it to fully contact the liquid inside the tank, promoting gas-liquid mixing and chemical reaction.

[0017] Compared with the prior art, the carbonization tower provided in this application embodiment can form multiple sets of spiral airflows around the air inlet, ensuring uniform gas concentration distribution in the tank and full gas participation in the reaction. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A three-dimensional structural schematic diagram of the carbonization tower provided in the embodiments of this application; Figure 2 A cross-sectional structural schematic diagram of the carbonization tower provided in an embodiment of this application; Figure 3 This is a three-dimensional structural diagram of the support disk used in the embodiments of this application; Figure 4 for Figure 3 A top view of the support plate structure shown; Figure 5 For along Figure 4 Schematic diagram of the cross-sectional structure along line AA; Figure 6 for Figure 5 A magnified structural diagram of region I in the middle; The following are the labeling elements in the figure: 1. Tank body; 2. Gas collecting pipe; 21. Support plate; 211. Dial plate; 3. Gas distribution pipe; 31. Filter screen; 4. Rotation drive component; 41. First sprocket; 42. Second sprocket; 43. Chain; 44. Drive motor; 5. Anti-reverse component; 51. Retaining ring; 52. Sealing plate; 53. Compression spring. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0021] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0022] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0024] Please refer to the following: Figures 1 to 6 The carbonization tower provided in this application will now be described. The carbonization tower includes a tank 1, a gas collecting pipe 2, and a multi-component gas pipe 3.

[0025] The tank body 1 has an internal hollow structure to form an inner cavity; the bottom of the tank body 1 has an air inlet that communicates with the inner cavity and is used to allow carbon dioxide to enter.

[0026] The air collecting pipe 2 is installed in the inner cavity and is parallel to the inner cavity axis, and is also connected to the air inlet; the air collecting pipe 2 can rotate about its central axis and is connected to a rotation drive component 4.

[0027] The multi-component air pipes 3 are spaced apart along the axial direction of the air collecting pipe 2; each component air pipe 3 includes multiple branch air pipes 3 spaced apart along the circumference of the air collecting pipe 2, each branch air pipe 3 is connected to the air collecting pipe 2 and extends outward along the radial direction of the air collecting pipe 2 so as to move synchronously with the rotation of the air collecting pipe 2.

[0028] Each of the gas collection pipes 3 has a different length, forming multiple sets of spiral airflows arranged along the axial direction of the gas collection pipe 2, and each set of spiral airflows is arranged around the air inlet.

[0029] Carbon dioxide is introduced through the air inlet at the bottom of the tank 1 and enters the gas collecting pipe 2, which is connected to the air inlet. Under the action of the rotation drive component 4, the gas collecting pipe 2 rotates around its own axis, driving the multi-component gas pipes 3, which are arranged at intervals along its axis, to rotate synchronously. Since the length of each component gas pipe 3 is different, the airflow discharged from each component gas pipe 3 during rotation will form a multi-layered spiral airflow arranged along the axis of the gas collecting pipe 2 in the inner cavity of the tank 1 due to the difference in radial position and rotation speed. The radius and angle of each spiral are different, and all spiral airflows are distributed around the center of the air inlet.

[0030] The spiral airflow can enhance the contact area and mixing uniformity between the gas and the material in the tank, thereby improving the carbonization reaction efficiency; the multi-layer gas distribution pipe design of different lengths avoids localized uneven reactions caused by a single spiral airflow, achieving airflow coverage across the entire height range.

[0031] The rotation of the gas collecting pipe 2 drives the movement of the gas distributing pipe 3, which can dynamically adjust the airflow distribution and prevent materials from settling at the bottom of the tank.

[0032] In this embodiment, carbon dioxide gas is introduced through the air inlet at the bottom of the tank 1 and directly enters the gas collecting pipe 2 connected to the air inlet. The rotation drive component 4 is used to drive the gas collecting pipe 2 to rotate around its central axis. Since the gas distribution pipe 3 is fixedly connected to the gas collecting pipe 2, the gas distribution pipe 3 will rotate synchronously with the gas collecting pipe 2. The carbon dioxide in the gas collecting pipe 2 is ejected outward through the radially extending gas distribution pipe 3. Since the length of each gas distribution pipe 3 is different and the gas distribution pipe 3 rotates with the gas collecting pipe 2, the ejected gas flow trajectory will exhibit the following characteristics: multiple gas distribution pipes 3 in the same group will form an annular airflow on the same horizontal plane due to rotation; the gas distribution pipes 3 in different groups have different lengths, different radii of the annular airflow, and different axial positions, and finally superimpose to form a multi-layered spiral airflow arranged along the axial direction of the gas collecting pipe 2. The multi-layered spiral airflow covers different areas inside the tank 1, making the carbon dioxide distribution more uniform and fully contacting the liquid in the tank 1, promoting gas-liquid mixing and chemical reaction.

[0033] Compared with the prior art, the carbonization tower provided in this application embodiment can form multiple sets of spiral airflows around the air inlet, ensuring uniform distribution of gas concentration in the tank and full participation of gas in the reaction.

[0034] In some embodiments, the gas collecting pipe 2 can be adopted as follows: Figure 2 and Figure 5 The structure shown is described in the following document. Figure 2 and Figure 5 The gas collecting pipe 2 has multiple support discs 21 spaced apart along its axial direction; the multiple support discs 21 correspond one-to-one with the multiple component gas pipes 3, and each support disc 21 is fixedly sleeved on the gas collecting pipe 2.

[0035] The support plate 21 has a plurality of mounting holes spaced apart along its circumference to accommodate the insertion of a plurality of corresponding air distribution pipes 3; and the outer surface of the support plate 21 is aligned with the exhaust end of the air distribution pipe 3.

[0036] Multiple support plates 21 are fitted onto the gas collection pipe 2. Each support plate 21 fixes the corresponding group of gas distribution pipes 3 through circumferentially spaced mounting holes. After the gas distribution pipe 3 is inserted into the mounting hole, its exhaust end is aligned with the outer surface of the support plate 21, that is, the end of the gas distribution pipe 3 is flush with the edge of the support plate 21, ensuring that the exhaust position height of each gas distribution pipe 3 in the same group is consistent.

[0037] The support plate 21 serves as a fixed carrier for the air distribution pipe 3, enhancing the structural stability of the air distribution pipe 3 during rotation and preventing deformation or detachment due to centrifugal force or airflow impact. The exhaust end is aligned with the outer surface of the support plate 21, ensuring that the exhaust positions of each air distribution pipe 3 in the same group are strictly synchronized, guaranteeing the regularity of the spiral airflow, and preventing airflow turbulence caused by inconsistent extension lengths of the air distribution pipe 3.

[0038] In some embodiments, the aforementioned support disk 21 may be adopted as follows: Figures 2 to 6 The structure shown is described in the following document. Figures 2 to 6 The outer diameter of the support plate 21 gradually decreases from bottom to top.

[0039] The outer diameter of the support plate 21 gradually decreases from bottom to top, that is, the bottom support plate 21 is the widest and the top support plate 21 is the narrowest. Since the radial length of the gas distribution pipe 3 after it is inserted into the support plate 21 is determined by the outer diameter of the support plate 21, the lower gas distribution pipe 3 is longer and the upper one is shorter.

[0040] The lower long gas distribution pipe 3 covers a larger radial range to contact more materials, while the upper short gas distribution pipe 3 focuses on the central area, optimizing airflow distribution and reaction efficiency. Reducing the outer diameter of the upper support plate 21 can reduce rotational resistance, especially in high-viscosity material environments, thereby reducing drive energy consumption.

[0041] In some embodiments, the mounting holes described above can be as follows: Figure 2 , Figure 5 and Figure 6 The structure shown is described in the following document. Figure 2 , Figure 5 and Figure 6 The mounting holes include straight cavities and bent cavities.

[0042] The straight cavity is located on the inner circumferential surface of the support plate 21.

[0043] The bent cavity is located on the bottom surface of the support plate 21 and is connected to the straight cavity.

[0044] In particular, along the direction of gas flow in the gas collecting pipe 2, the bent cavity is inclined toward the central axis of the gas collecting pipe 2.

[0045] When the gas enters the straight cavity from the gas collecting pipe 2, it changes direction through the bend cavity and finally enters the tank 1 at an inclined angle. The inclined design of the bend cavity gives the gas a tangential velocity when it enters the tank 1, and it works in coordination with the rotation direction of the gas collecting pipe 2, thereby enhancing the rotation effect of the spiral airflow. This avoids turbulence or pressure loss at the right-angle connection between the straight cavity and the gas distribution pipe 3, thus improving the gas delivery efficiency.

[0046] In some embodiments, the aforementioned support disk 21 may be adopted as follows: Figures 2 to 6 The structure shown is described in the following document. Figures 2 to 6 Each support plate 21 has multiple levers 211, and each lever 211 is fixedly connected to the outer peripheral surface of the support plate 21.

[0047] Multiple levers 211 are fixed on the outer periphery of the support plate 21. When the gas collecting pipe 2 drives the support plate 21 to rotate, the levers 211 rotate synchronously with the support plate 21, generating a mechanical stirring effect on the material in the tank.

[0048] The stirring plate 211 can prevent local blockage or stratification of materials due to gravity or deposition of reaction products; combined with the mixing effect of the spiral airflow, it further improves the contact uniformity of the gas-solid / gas-liquid two phases and shortens the reaction time.

[0049] In some embodiments, the aforementioned support disk 21 may be adopted as follows: Figures 2 to 6 The structure shown is described in the following document. Figures 2 to 6 Along the direction of gas flow in the gas collecting pipe 2, the outer diameter of the multiple support disks 21 gradually decreases.

[0050] Along the gas inlet direction, that is, the flow direction from the inlet to the top of the gas collecting pipe 2, the outer diameter of the support plate 21 gradually decreases.

[0051] Adapting to the gas flow direction, the gas rises through the gradually shrinking support plate 21 and gas distribution pipe 3, dynamically adjusting the airflow coverage range, making the lower layer wider and the upper layer narrower; matching changes in material concentration or reaction progress, such as requiring large coverage for unreacted materials at the bottom and centralized treatment for materials nearing completion at the top.

[0052] In some embodiments, the carbonization tower described above may employ, for example... Figure 2 , Figure 5 and Figure 6 The structure shown is described in the following document. Figure 2 , Figure 5 and Figure 6 The carbonization tower also includes multiple anti-reverse components.

[0053] Multiple anti-reverse components 5 correspond one-to-one with multiple gas distribution pipes 3; each anti-reverse component 5 is respectively installed in the gas distribution pipe 3; when the pressure in the gas distribution pipe 3 is greater than the pressure inside the tank 1, the anti-reverse component 5 is adapted to connect the gas distribution pipe 3 and the tank 1 so that the gas in the gas distribution pipe 3 can pass through; when the pressure in the gas distribution pipe 3 is less than the pressure inside the tank 1, the anti-reverse component 5 is adapted to block the gas distribution pipe 3 so as to prevent the material in the tank 1 from entering the gas distribution pipe 3.

[0054] Each gas distribution pipe 3 is equipped with an anti-backflow component 5. When the gas pressure in the gas distribution pipe 3 is greater than the pressure inside the tank 1, the anti-backflow component 5 opens. When the pressure in the gas distribution pipe 3 decreases, such as when the gas intake is interrupted or the flow rate is reduced, the material in the tank 1 may backflow. At this time, the anti-backflow component 5 closes to prevent the material from entering the gas distribution pipe 3. The anti-backflow structure can prevent the material in the tank from backflowing and clogging the gas distribution pipe 3, especially during intermittent gas intake or shutdown, ensuring the long-term reliability of the equipment. It also avoids the accumulation of material in the gas distribution pipe 3, which can lead to increased airflow resistance or contamination of reaction products.

[0055] In some embodiments, the anti-reverse component 5 may be adopted as follows: Figure 2 , Figure 5 and Figure 6 The structure shown is described in the following document. Figure 2 , Figure 5 and Figure 6 The anti-reverse component 5 includes a retaining ring 51, a sealing plate 52, and a compression spring 53.

[0056] The baffle ring 51 is coaxially disposed inside the gas distribution pipe 3. The outer peripheral wall of the baffle ring 51 is sealed to the inner wall of the gas distribution pipe 3, and the baffle ring 51 has a through hole for gas to pass through. The sealing plate 52 is slidably connected to the gas distribution pipe 3 along its axial direction, and is located on the side of the retaining ring 51 facing away from the outlet end of the gas distribution pipe 3; the diameter of the sealing plate 52 is smaller than the inner diameter of the gas distribution pipe 3, and the diameter of the sealing plate 52 is larger than the diameter of the through hole; and The compression spring 53 is coaxially arranged inside the air distribution pipe 3; one end of the compression spring 53 is connected to the side of the sealing plate 52 facing away from the retaining ring 51, and the other end is connected to the inner wall of the air distribution pipe 3; the compression spring 53 is used to drive the sealing plate 52 to move towards the retaining ring 51 to close the through hole.

[0057] The anti-backflow component 5 consists of a retaining ring 51, a sealing plate 52, and a compression spring 53. During normal ventilation, the gas pressure in the gas distribution pipe 3 pushes the sealing plate 52 to compress the spring 53, causing the sealing plate 52 to move away from the retaining ring 51, opening the through hole, and allowing gas to escape. When the pressure in the gas distribution pipe 3 decreases, such as when the gas supply stops, the spring rebounds and pushes the sealing plate 52 to press tightly against the retaining ring 51. The diameter of the sealing plate 52 is larger than the diameter of the through hole, thereby blocking the through hole and preventing material backflow.

[0058] By adopting the above technical solutions, the anti-reverse component 5 adopts a purely mechanical structure, which has high reliability and is suitable for chemical environments; the spring force can be adjusted according to the working conditions to adapt to different pressure scenarios; and no additional power source is required, resulting in low maintenance costs.

[0059] In some embodiments, the rotation drive member 4 described above may be as follows: Figure 1 and Figure 2 The structure shown is described in the following document. Figure 1 and Figure 2 The lower end of the air collection pipe 2 extends through the air inlet, and the rotation drive component 4 includes a first sprocket 41, a second sprocket 42, and a chain 43.

[0060] The first sprocket 41 is coaxially mounted at the extended end of the air collecting pipe 2.

[0061] The second sprocket 42 is disposed outside the tank body 1. The second sprocket 42 and the first sprocket 41 are spaced apart in the horizontal direction, and the axial direction of the second sprocket 42 is parallel to the axial direction of the first sprocket 41. The second sprocket 42 is connected to a drive motor 44 so that the second sprocket 42 rotates around its own axis.

[0062] Chain 43 is fitted onto first sprocket 41 and second sprocket 42 to synchronize the rotation of first sprocket 41 and second sprocket 42.

[0063] The lower end of the gas collecting pipe 2 extends out of the tank body 1 and is connected to the external second sprocket 42 via a chain 43 through a first sprocket 41. When the motor rotates, the second sprocket 42 drives the chain 43, and the chain 43 drives the first sprocket 41, thereby driving the gas collecting pipe 2 to rotate.

[0064] By adopting the above technical solution, the sprocket-chain 43 transmission has the advantages of simple structure, stable transmission ratio, and suitability for low-speed, high-torque scenarios; the sprocket and chain 43 are exposed outside the tank 1, which facilitates inspection, lubrication, and replacement, and makes maintenance convenient; the horizontally spaced sprockets avoid the axial load problem of vertical transmission and extend bearing life.

[0065] In some embodiments, the above-mentioned air distribution pipe 3 can be adopted as follows: Figure 2 , Figure 5 and Figure 6 The structure shown is described in the following document. Figure 2 , Figure 5 and Figure 6 Each air outlet of the air distribution pipe 3 is equipped with a filter screen 31.

[0066] A filter screen 31, such as a metal screen, is installed at the outlet of the gas distribution pipe 3 to allow only gas to pass through and to prevent large particles of material in the tank, such as unreacted solid raw materials or crystal products, from entering the gas distribution pipe 3.

[0067] As the first barrier against clogging, filter screen 31 can reduce the burden on anti-reverse component 5 and prevent large particles from directly impacting sealing plate 52 or clogging through holes. Staff can replace or clean filter screen 31 regularly, reducing the overall maintenance frequency of gas distribution pipe 3. Filter screen 31 can adapt to environments with high solid content materials, such as those that generate a large number of solid particles in carbonization reactions, thus improving the applicability of the equipment.

[0068] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A carbonization tower, characterized in that, include: The tank body has a hollow internal structure to form an inner cavity; the bottom of the tank body has an air inlet that communicates with the inner cavity and is used to allow carbon dioxide to enter. A gas collecting pipe is disposed within the inner cavity and parallel to the axial direction of the inner cavity, and is also connected to the air inlet; the gas collecting pipe is rotatable about its central axis and is connected to a rotation drive component; and The gas distribution tubes are arranged at intervals along the axial direction of the gas collecting tube; each group of gas distribution tubes includes multiple gas distribution tubes arranged at intervals along the circumference of the gas collecting tube, each gas distribution tube is connected to the gas collecting tube and extends outward along the radial direction of the gas collecting tube so as to move synchronously with the rotation of the gas collecting tube. The lengths of each set of air distribution pipes are different, so as to form multiple sets of spiral airflows arranged along the axial direction of the air collection pipe, and each set of spiral airflows is arranged around the air inlet.

2. The carbonization tower as described in claim 1, characterized in that, The gas collecting pipe has a plurality of support discs spaced apart along its axial direction; the plurality of support discs correspond one-to-one with the plurality of sets of gas distribution pipes, and each support disc is fixedly sleeved on the gas collecting pipe. The support plate has a plurality of mounting holes spaced apart along its circumference to accommodate the insertion of a plurality of corresponding air distribution pipes; and the outer surface of the support plate is aligned with the exhaust end of the air distribution pipe.

3. The carbonization tower as described in claim 2, characterized in that, The outer diameter of the support plate gradually decreases from bottom to top.

4. The carbonization tower as described in claim 2, characterized in that, The mounting holes include: A straight cavity is formed on the inner circumferential surface of the support plate; and A bent cavity is formed on the bottom surface of the support plate and communicates with the straight cavity; In particular, the bend in the gas collection pipe is inclined toward the central axis of the gas collection pipe along the direction of gas inlet.

5. The carbonization tower as described in claim 2, characterized in that, Each of the support plates has multiple levers, and each lever is fixedly connected to the outer peripheral surface of the support plate.

6. The carbonization tower according to any one of claims 2-5, characterized in that, Along the direction of gas flow in the gas collecting pipe, the outer diameter of the plurality of support discs gradually decreases.

7. The carbonization tower as described in claim 1, characterized in that, The carbonization tower also includes: Multiple anti-reverse components are provided, each corresponding to one of the multiple gas distribution pipes; each anti-reverse component is respectively disposed in the gas distribution pipe; when the pressure in the gas distribution pipe is greater than the pressure inside the tank, the anti-reverse component is adapted to connect the gas distribution pipe and the tank to allow gas in the gas distribution pipe to pass through; when the pressure in the gas distribution pipe is less than the pressure inside the tank, the anti-reverse component is adapted to block the gas distribution pipe to prevent material in the tank from entering the gas distribution pipe.

8. The carbonization tower as described in claim 7, characterized in that, The anti-reverse component includes: A baffle ring is coaxially disposed inside the gas distribution pipe. The outer peripheral wall of the baffle ring is sealed to the inner wall of the gas distribution pipe, and the baffle ring has a through hole for gas to pass through. A sealing plate is slidably connected to the gas distribution pipe along its axial direction within the pipe, and the sealing plate is located on the side of the retaining ring facing away from the outlet end of the gas distribution pipe; the diameter of the sealing plate is smaller than the inner diameter of the gas distribution pipe, and the diameter of the sealing plate is larger than the diameter of the through hole; and A compression spring is coaxially disposed inside the air distribution pipe; one end of the compression spring is connected to the side of the sealing plate facing away from the retaining ring, and the other end is connected to the inner wall of the air distribution pipe; the compression spring is used to drive the sealing plate to move towards the retaining ring, so as to close the through hole.

9. The carbonization tower as described in claim 1, characterized in that, The lower end of the gas collecting pipe extends through the air inlet, and the rotation drive component includes: The first sprocket is coaxially mounted at the extended end of the gas collecting pipe; A second sprocket is disposed outside the tank body, and is horizontally spaced from the first sprocket, with the axis of the second sprocket parallel to the axis of the first sprocket; the second sprocket is driven by a motor to rotate around its own axis; and A chain is fitted onto the first sprocket and the second sprocket to synchronize the rotation of the first sprocket and the second sprocket.

10. The carbonization tower as described in claim 1, characterized in that, Each of the gas distribution pipes is equipped with a filter screen at its outlet.

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