carbonization column

Abstract

The application relates to a carbonization tower and belongs to the field of ammonium bicarbonate production equipment. The carbonization tower comprises a tower body, a water tank and a first gas conveying pipe. The tower body has a tower cavity and is provided with a liquid inlet and a discharge outlet which are communicated with the tower cavity; the water tank is communicated with a water source, and at least part of the water tank is located in the tower cavity; the first gas conveying pipe is communicated with a dry gas source, and the first gas conveying pipe is rotatably arranged in the tower cavity along an axis of the water tank, and a first through hole is arranged on a side of the first gas conveying pipe which faces the axis of the water tank along a radial direction of the water tank, the first through hole being communicated with a pipe cavity of the first gas conveying pipe; along a gravity direction, the liquid inlet is located above the discharge outlet, and the water tank and the first gas conveying pipe are both located between the liquid inlet and the discharge outlet.

Description

Technical Field

[0001] This application pertains to the field of ammonium bicarbonate production equipment, and particularly relates to carbonation towers. Background Technology

[0002] In the industrial production of ammonium bicarbonate, carbonation is the core process unit. Carbonation is carried out inside a carbonation tower, which is filled with ammonia solution and continuously fed with a shift gas containing carbon dioxide. The ammonia solution reacts with the carbon dioxide in the shift gas to produce ammonium bicarbonate. A water tank is installed inside the carbonation tower to remove the heat of reaction and crystallization released during the ammonium bicarbonate synthesis and crystallization processes.

[0003] In actual production, ammonium bicarbonate crystals tend to adhere to the outer wall of the water tank, forming a solid layer. When the thickness of this solid layer accumulates to a certain extent, it reduces the effective reaction volume inside the carbonization tower and lowers the heat transfer efficiency of the water tank, thus inhibiting the crystallization rate of ammonium bicarbonate and reducing the production efficiency of the product. Utility Model Content

[0004] In view of the above problems, this application provides a carbonization tower that can remove the solid phase adhesion layer, thereby improving the production efficiency of the product.

[0005] This application provides a carbonization tower, including a tower body, a water tank, and a first gas delivery pipe. The tower body has a tower cavity and has a liquid inlet and a discharge outlet communicating with the tower cavity; the water tank is connected to a water source, and at least a portion of the water tank is located inside the tower cavity; the first gas delivery pipe is connected to a drying gas source, and at least a portion of the first gas delivery pipe is rotatably disposed inside the tower cavity around the axis of the water tank. Along the radial direction of the water tank, a first through hole is provided on the side of the first gas delivery pipe facing the axis of the water tank, and the first through hole communicates with the cavity of the first gas delivery pipe; along the direction of gravity, the liquid inlet is located above the discharge outlet, and both the water tank and the first gas delivery pipe are located between the liquid inlet and the discharge outlet.

[0006] Specifically, during normal operation, the first gas supply pipe is closed, the tower cavity is filled with ammonia water, and a shift gas containing carbon dioxide is continuously introduced. The ammonia water reacts with the carbon dioxide in the shift gas to produce ammonium bicarbonate. Simultaneously, cooling water is added to the water tank to absorb heat from the tower. When it is necessary to remove the solid phase deposited in the tower, the cooling water in the water tank is drained, the first gas supply pipe is opened, and high-temperature, high-pressure dry gas is supplied into the first gas supply pipe. On one hand, this causes the ammonia water in the first gas supply pipe to flow out through the first through-hole; on the other hand, high-temperature, high-pressure dry gas is supplied to the outer circumference of the water tank through the first through-hole. Simultaneously, the first gas supply pipe rotates around the axis of the water tank, causing the solid phase deposited on the surface of the water tank to dry and lose water, thus facilitating the breaking up and blowing off of the solid phase deposited by the dry gas. Subsequently, a flushing liquid (such as a saturated ammonium bicarbonate aqueous solution) is injected into the tower cavity through the liquid inlet to cause the broken solid phase deposited by the gas to flow out from the discharge outlet.

[0007] For example, the water source can be a water tank.

[0008] In the above technical solution, by rotatably arranging the first gas delivery pipe at least partially around the axis of the water tank in the tower cavity, and providing a first through hole along the radial direction of the water tank on the side of the first gas delivery pipe facing the water tank, the first through hole is connected to the cavity of the first gas delivery pipe, thereby achieving the effect of removing the solid phase adhesion layer and improving the production efficiency of the product.

[0009] In some embodiments, the carbonization tower includes a heat dissipation device and a water source, both located outside the tower body. The outlet of the heat dissipation device is connected to the inlet of the water source. The water tank includes a tank body, an inlet pipe, and an outlet pipe. The inlet pipe and the outlet pipe are located at opposite ends of the water tank along its axial direction. One end of the inlet pipe is connected to the tank body, and the other end extends out of the tower body and is connected to the outlet of the water source. One end of the outlet pipe is connected to the tank body, and the other end extends out of the tower body and is connected to the inlet of the heat dissipation device.

[0010] In the above technical solution, by setting up a heat dissipation device and forming a circulation between the heat dissipation device, water source and tank through the liquid inlet pipe and liquid outlet pipe, the cooling water can be recycled, reducing the amount of cooling water used.

[0011] In some embodiments, the first gas delivery pipe includes a first support section and a pipe body. The first support section is rotatably mounted on the tower body and sleeved outside the liquid inlet pipe. The inner circumferential surface of the first support section abuts against the outer circumferential surface of the liquid inlet pipe. A first cavity communicating with a dry gas source is provided in the peripheral wall of the first support section. One end of the pipe body is connected to the first support section, and the other end of the pipe body extends axially along the water tank and is located on the outer circumference of the tank body. A second cavity communicating with the first cavity is provided in the pipe body. A first through hole is located in the pipe body and communicates with the second cavity.

[0012] In the above technical solution, by setting a first bearing section and making the inner circumferential surface of the first bearing section abut against the outer circumferential surface of the liquid inlet pipe, the liquid inlet pipe can be stably supported during the rotation of the first gas delivery pipe, thereby reducing the risk of water tank shaking.

[0013] In some embodiments, the first gas delivery pipe further includes a second support section. The second support section is rotatably mounted on the tower body and sleeved outside the liquid outlet pipe. The inner circumferential surface of the second support section abuts against the outer circumferential surface of the liquid outlet pipe, and the end of the pipe body away from the first support section is connected to the second support section.

[0014] In the above technical solution, by setting a second bearing section and making the inner circumferential surface of the second bearing section abut against the outer circumferential surface of the liquid outlet pipe, the liquid outlet pipe can be stably supported during the rotation of the first gas supply pipe, thereby further reducing the risk of water tank shaking.

[0015] In some embodiments, the radial dimension of the tank body is greater than the radial dimension of the inlet pipe, and the outer peripheral surface of the tank body and the outer peripheral surface of the inlet pipe are connected by a first stepped surface; along the axial direction of the water tank, one end of the first bearing section connected to the pipe body abuts against the first stepped surface, and the first bearing section has a first portion protruding from the outer peripheral surface of the tank body, and the pipe body is connected to the first portion.

[0016] In the above technical solution, the risk of the water tank shifting axially is reduced by abutting the end of the first bearing section connected to the pipe body against the first stepped surface. Simultaneously, a first portion protruding from the outer circumference of the tank body is provided to facilitate the connection between the pipe body and the first bearing section.

[0017] In some embodiments, the water tank and the first air supply pipe are multiple units spaced apart along the direction of gravity.

[0018] In the above technical solution, multiple water tanks are spaced apart along the direction of gravity to facilitate uniform absorption of heat inside the tower, and multiple first gas pipelines are spaced apart along the direction of gravity to facilitate removal of the solid phase deposited layer from the multiple water tanks.

[0019] In some embodiments, along the radial direction of the water tank, a second through hole is provided on the side of the first air supply pipe opposite to the axis of the water tank, and the second through hole communicates with the lumen of the first air supply pipe.

[0020] In the above technical solution, by setting a second through hole, when the first gas pipe rotates between two adjacent water tanks, it can provide high-temperature and high-pressure drying gas to the adjacent water tanks and the first gas pipe on the adjacent water tanks, so that the solid phase adhesion layer attached to the surface of the adjacent water tanks and the first gas pipe dries and loses water, and facilitates the drying gas to break up and blow off the solid phase adhesion layer.

[0021] In some embodiments, the first gas delivery pipe that is closest to the liquid inlet in the direction of gravity among the plurality of first gas delivery pipes is the first sub-gas delivery pipe; the carbonization tower includes a second gas delivery pipe that is connected to a dry gas source. Along the direction of gravity, the second gas delivery pipe is located between the first sub-gas delivery pipe and the liquid inlet. A third through hole is provided on the side of the second gas delivery pipe away from the liquid inlet, and the third through hole is connected to the lumen of the second gas delivery pipe.

[0022] In the above technical solution, a second gas supply pipe is provided, and a third through hole is provided on the side of the second gas supply pipe away from the liquid inlet, so as to provide high temperature and high pressure dry gas to the first sub-gas supply pipe, so that the solid phase adhesion layer attached to the surface of the first sub-gas supply pipe dries and loses water, and facilitates the dry gas to break up and blow off the solid phase adhesion layer.

[0023] In some embodiments, the carbonization tower further includes a drive member, a first gear, and a second gear. The drive member is disposed outside the tower body and has a drive end; the first gear is pulsatorically connected to the drive end, and the drive member is used to drive the first gear to rotate; the second gear is sleeved on the first gas supply pipe and located outside the tower body, and the first gear meshes with the second gear.

[0024] In the above technical solution, the first gas pipe is driven to rotate by setting a driving component, a first gear and a second gear, which is simple in structure and easy to implement.

[0025] In some embodiments, the carbonization tower further includes a water pump, the outlet of which is connected to the inlet, and the water pump is used to drive the rinsing liquid toward the inlet.

[0026] In the above technical solution, the flushing fluid is driven to the inlet by a water pump, which is simple in structure and easy to implement. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, 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.

[0028] Figure 1 A cross-sectional view of a carbonization tower provided in an embodiment of this application; Figure 2 for Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is a schematic diagram of the structure of the water tank provided in an embodiment of this application; Figure 4 This is a schematic diagram of the structure of the first gas transmission pipe provided in an embodiment of this application; Figure 5 A cross-sectional view of another carbonization tower provided in an embodiment of this application; Figure 6 A cross-sectional view of another carbonization tower provided in an embodiment of this application; Figure 7 A cross-sectional view of another carbonization tower provided in an embodiment of this application.

[0029] In the picture: 100-Carbonization tower, 10-Tower body, 11-Tower cavity, 12-Liquid inlet, 13-Discharge outlet, 20-Water tank, 21-Box body, 22-Liquid inlet pipe, 23-Liquid outlet pipe, 30-First gas delivery pipe, 30A-First sub-gas delivery pipe, 31-First bearing section, 31A-First cavity, 32-Pipe body, 32A-Second cavity, 32B-First through hole, 32C-Second through hole, 33-Second bearing section, 40-Water source, 41-Heat dissipation device, 50-Second gas delivery pipe, 50A-Third through hole, 60-Drive component, 61-First gear, 62-Second gear, 70-Water pump. Detailed Implementation

[0030] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0031] In the description of this application, it should be understood that the terms "center", "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.

[0032] 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] Reference Figures 1-4This application provides a carbonization tower 100, including a tower body 10, a water tank 20, and a first gas delivery pipe 30. The tower body 10 has a tower cavity 11 and a liquid inlet 12 and a discharge outlet 13 communicating with the tower cavity 11; the water tank 20 is connected to a water source 40, and at least a portion of the water tank 20 is located inside the tower cavity 11; the first gas delivery pipe 30 is connected to a dry gas source, and at least a portion of the first gas delivery pipe 30 is rotatably disposed inside the tower cavity 11 around the axis of the water tank 20. Along the radial direction of the water tank 20, a first through hole 32B is provided on the side of the first gas delivery pipe 30 facing the axis of the water tank 20, and the first through hole 32B communicates with the cavity of the first gas delivery pipe 30; along the direction of gravity, the liquid inlet 12 is located above the discharge outlet 13, and both the water tank 20 and the first gas delivery pipe 30 are located between the liquid inlet 12 and the discharge outlet 13.

[0035] Specifically, during normal operation, the first gas supply pipe 30 is closed, the tower cavity 11 is filled with ammonia water, and a shift gas containing carbon dioxide is continuously introduced. The ammonia water reacts with the carbon dioxide in the shift gas to produce ammonium bicarbonate. At the same time, cooling water is added to the water tank 20 to absorb heat from the tower body 10. When it is necessary to remove the solid phase deposited layer inside the tower body 10, the cooling water in the water tank 20 is drained, the first gas supply pipe 30 is opened, and high-temperature and high-pressure dry gas is supplied to the first gas supply pipe 30. On the one hand, this causes the ammonia water in the first gas supply pipe 30 to flow out through the first through hole 32B; on the other hand, high-temperature and high-pressure dry gas is supplied to the outer circumference of the water tank 20 through the first through hole 32B. At the same time, the first gas supply pipe 30 rotates around the axis of the water tank 20, so that the solid phase deposited layer attached to the surface of the water tank 20 dries and loses water, thereby facilitating the breaking up and blowing off of the solid phase deposited layer by the dry gas. Then, flushing liquid (such as saturated ammonium bicarbonate aqueous solution) is injected into the tower cavity 11 through the liquid inlet 12 to drive the broken solid phase adhering layer to flow out from the discharge outlet 13.

[0036] It is understandable that a saturated ammonium bicarbonate aqueous solution can be the mother liquor produced when carbonization tower 100 is operating normally.

[0037] In this technical solution, the first gas delivery pipe 30 is rotatably disposed in the tower cavity 11 at least partially around the axis of the water tank 20, and a first through hole 32B is provided on the side of the first gas delivery pipe 30 facing the axis of the water tank 20 along the radial direction of the water tank 20, so that the first through hole 32B communicates with the cavity of the first gas delivery pipe 30, thereby achieving the effect of removing the solid phase adhesion layer and improving the production efficiency of the product.

[0038] Please refer to Figure 5According to some embodiments of this application, the carbonization tower 100 includes a heat dissipation device 41 and a water source 40, both located outside the tower body 10. The outlet of the heat dissipation device 41 is connected to the inlet of the water source 40. The water tank 20 includes a tank body 21, an inlet pipe 22, and an outlet pipe 23. The inlet pipe 22 and the outlet pipe 23 are located at opposite ends of the water tank 20 along its axial direction. One end of the inlet pipe 22 is connected to the tank body 21, and the other end of the inlet pipe 22 extends out of the tower body 10 and is connected to the outlet of the water source 40. One end of the outlet pipe 23 is connected to the tank body 21, and the other end of the outlet pipe 23 extends out of the tower body 10 and is connected to the inlet of the heat dissipation device 41.

[0039] It is understandable that the heat dissipation device 41 can be a finned tube air-cooled heat sink.

[0040] In this technical solution, by setting up a heat dissipation device 41, and by using an inlet pipe 22 and an outlet pipe 23 to form a circulation between the heat dissipation device 41, the water source 40, and the housing 21, the cooling water can be recycled, thus reducing the amount of cooling water used.

[0041] Please refer to Figure 1 , Figure 3 and Figure 4 According to some embodiments of this application, the first gas supply pipe 30 includes a first supporting section 31 and a pipe body 32. The first supporting section 31 is rotatably mounted on the tower body 10 and sleeved outside the liquid inlet pipe 22. The inner circumferential surface of the first supporting section 31 abuts against the outer circumferential surface of the liquid inlet pipe 22. A first cavity 31A communicating with a dry gas source is provided in the peripheral wall of the first supporting section 31. One end of the pipe body 32 is connected to the first supporting section 31, and the other end of the pipe body 32 extends along the axial direction of the water tank 20 and is located on the outer circumference of the tank body 21. The pipe body 32 has a second cavity 32A communicating with the first cavity 31A. A first through hole 32B is located in the pipe body 32 and communicates with the second cavity 32A.

[0042] It should be noted that gaps are provided between the outer peripheral surface of the first bearing section 31 and the tower body 10, and between the inner peripheral surface of the first bearing section 31 and the outer peripheral surface of the liquid inlet pipe 22.

[0043] In this technical solution, by setting a first bearing section 31 and making the inner circumferential surface of the first bearing section 31 abut against the outer circumferential surface of the liquid inlet pipe 22, the liquid inlet pipe 22 can be stably supported during the rotation of the first gas delivery pipe 30, thereby reducing the risk of water tank 20 shaking.

[0044] Please refer to Figure 1 , Figure 3 and Figure 4According to some embodiments of this application, the first gas delivery pipe 30 further includes a second support section 33. The second support section 33 is rotatably mounted on the tower body 10 and sleeved outside the liquid outlet pipe 23. The inner circumferential surface of the second support section 33 abuts against the outer circumferential surface of the liquid outlet pipe 23, and the end of the pipe body 32 away from the first support section 31 is connected to the second support section 33.

[0045] In this technical solution, by setting a second bearing section 33 and making the inner circumferential surface of the second bearing section 33 abut against the outer circumferential surface of the liquid outlet pipe 23, the liquid outlet pipe 23 can be stably supported during the rotation of the first gas supply pipe 30, thereby further reducing the risk of water tank 20 shaking.

[0046] Please refer to Figure 1 , Figure 3 and Figure 4 According to some embodiments of this application, the radial dimension of the housing 21 is greater than the radial dimension of the inlet pipe 22, and the outer peripheral surface of the housing 21 and the outer peripheral surface of the inlet pipe 22 are connected by a first stepped surface; along the axial direction of the water tank 20, one end of the first bearing section 31 connected to the pipe body 32 abuts against the first stepped surface, and the first bearing section 31 has a first part protruding from the outer peripheral surface of the housing 21, and the pipe body 32 is connected to the first part.

[0047] In this technical solution, the risk of the water tank 20 shifting axially is reduced by abutting the end of the first bearing section 31 connected to the pipe body 32 against the first stepped surface. Simultaneously, a first portion protruding from the outer circumferential surface of the tank body 21 is provided to facilitate the connection between the pipe body 32 and the first bearing section 31.

[0048] Please refer to Figure 1 According to some embodiments of this application, the water tank 20 and the first air supply pipe 30 are multiple units spaced apart along the direction of gravity.

[0049] In this technical solution, multiple water tanks 20 are spaced apart along the direction of gravity to uniformly absorb heat from the tower body 10, and multiple first gas delivery pipes 30 are spaced apart along the direction of gravity to remove the solid phase deposited layer from the multiple water tanks 20.

[0050] Please refer to Figure 1 and Figure 2 According to some embodiments of this application, along the radial direction of the water tank 20, a second through hole 32C is provided on the side of the first air supply pipe 30 away from the axis of the water tank 20, and the second through hole 32C communicates with the lumen of the first air supply pipe 30.

[0051] In this technical solution, by setting a second through hole 32C, when the first gas pipe 30 rotates between two adjacent water tanks 20, it can provide high temperature and high pressure drying gas to the adjacent water tanks 20 and the first gas pipe 30 on the adjacent water tanks 20, so that the solid phase adhesion layer attached to the surface of the adjacent water tanks 20 and the first gas pipe 30 dries and loses water, and facilitates the drying gas to break up and blow off the solid phase adhesion layer.

[0052] Please refer to Figure 6 According to some embodiments of this application, the one of the plurality of first gas supply pipes 30 that is closest to the liquid inlet 12 in the direction of gravity is the first sub-gas supply pipe 30A; the carbonization tower 100 includes a second gas supply pipe 50, which is connected to a dry gas source. Along the direction of gravity, the second gas supply pipe 50 is located between the first sub-gas supply pipe 30A and the liquid inlet 12. A third through hole 50A is provided on the side of the second gas supply pipe 50 away from the liquid inlet 12, and the third through hole 50A is connected to the lumen of the second gas supply pipe 50.

[0053] For example, the dry gas source can be a direct-fired hot air furnace.

[0054] In this technical solution, a second gas supply pipe 50 is provided, and a third through hole 50A is provided on the side of the second gas supply pipe 50 away from the liquid inlet 12, so as to provide high temperature and high pressure dry gas to the first sub-gas supply pipe 30A, so that the solid phase adhesion layer attached to the surface of the first sub-gas supply pipe 30A dries and loses water, and facilitates the dry gas to break up and blow off the solid phase adhesion layer.

[0055] Please refer to Figure 7 According to some embodiments of this application, the carbonization tower 100 further includes a drive member 60, a first gear 61, and a second gear 62. The drive member 60 is disposed outside the tower body 10 and has a drive end; the first gear 61 is connected to the drive end for transmission, and the drive member 60 is used to drive the first gear 61 to rotate; the second gear 62 is sleeved on the first gas supply pipe 30 and located outside the tower body 10, and the first gear 61 meshes with the second gear 62.

[0056] For example, the drive element 60 can be a drive motor.

[0057] In this technical solution, the first gas pipe 30 is driven to rotate by setting a driving component 60, a first gear 61 and a second gear 62, which is simple in structure and easy to implement.

[0058] Please refer to Figure 5 According to some embodiments of this application, the carbonization tower 100 also includes a water pump 70, the outlet of which is connected to the inlet 12, and the water pump 70 is used to drive the rinsing liquid toward the inlet 12.

[0059] In this technical solution, the flushing fluid is driven to the inlet by a water pump, which is simple in structure and easy to implement.

[0060] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0061] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit this application. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., 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 tower body has a tower cavity and has a liquid inlet and a material outlet communicating with the tower cavity; A water tank connected to a water source, at least a portion of which is located within the tower cavity; The first gas supply pipe is connected to the drying gas source. The first gas supply pipe is rotatably disposed in the tower cavity at least partially around the axis of the water tank. Along the radial direction of the water tank, the first gas supply pipe has a first through hole on the side facing the axis of the water tank. The first through hole is connected to the cavity of the first gas supply pipe. Along the direction of gravity, the liquid inlet is located above the discharge outlet, and the water tank and the first gas supply pipe are both located between the liquid inlet and the discharge outlet.

2. The carbonization tower according to claim 1, characterized in that, The carbonization tower includes: The heat dissipation device and the water source are both located outside the tower body, and the outlet of the heat dissipation device is connected to the inlet of the water source; The water tank includes: Box; The inlet pipe and outlet pipe are located at opposite ends of the water tank along its axial direction. One end of the inlet pipe is connected to the tank body, and the other end of the inlet pipe extends out of the tower body and is connected to the outlet of the water source. One end of the outlet pipe is connected to the tank body, and the other end of the outlet pipe extends out of the tower body and is connected to the inlet of the heat dissipation device.

3. The carbonization tower according to claim 2, characterized in that, The first gas pipeline includes: The first bearing section is rotatably installed on the tower body and sleeved outside the liquid inlet pipe. The inner circumferential surface of the first bearing section abuts against the outer circumferential surface of the liquid inlet pipe. A first cavity communicating with the drying gas source is provided in the peripheral wall of the first bearing section. The pipe body has one end connected to the first bearing section, and the other end of the pipe body extends along the axial direction of the water tank and is located on the outer periphery of the tank. The pipe body has a second cavity that communicates with the first pipe cavity, and the first through hole is located in the pipe body and communicates with the second pipe cavity.

4. The carbonization tower according to claim 3, characterized in that, The first gas pipeline also includes: The second bearing section is rotatably installed on the tower body and sleeved outside the liquid outlet pipe. The inner circumferential surface of the second bearing section abuts against the outer circumferential surface of the liquid outlet pipe, and the end of the pipe body away from the first bearing section is connected to the second bearing section.

5. The carbonization tower according to claim 3, characterized in that, The radial dimension of the housing is greater than the radial dimension of the inlet pipe, and the outer peripheral surface of the housing and the outer peripheral surface of the inlet pipe are connected by a first stepped surface; Along the axial direction of the water tank, one end of the first bearing section connected to the pipe body abuts against the first stepped surface. The first bearing section has a first portion protruding from the outer peripheral surface of the tank body, and the pipe body is connected to the first portion.

6. The carbonization tower according to any one of claims 1-5, characterized in that, The water tank and the first gas supply pipe are multiple units spaced apart along the direction of gravity.

7. The carbonization tower according to claim 6, characterized in that, Along the radial direction of the water tank, a second through hole is provided on the side of the first gas supply pipe opposite to the axis of the water tank, and the second through hole communicates with the lumen of the first gas supply pipe.

8. The carbonization tower according to claim 7, characterized in that, The one of the plurality of first gas delivery pipes that is closest to the liquid inlet in the direction of gravity is the first sub-gas delivery pipe; The carbonization tower includes: The second gas supply pipe is connected to the dry gas source. Along the direction of gravity, the second gas supply pipe is located between the first sub-gas supply pipe and the liquid inlet. A third through hole is provided on the side of the second gas supply pipe away from the liquid inlet. The third through hole is connected to the lumen of the second gas supply pipe.

9. The carbonization tower according to any one of claims 1-5, characterized in that, The carbonization tower also includes: A driving component is disposed outside the tower body and has a driving end; The first gear is connected to the driving end, and the driving component is used to drive the first gear to rotate. The second gear is sleeved on the first gas supply pipe and located outside the tower body, and the first gear meshes with the second gear.

10. The carbonization tower according to any one of claims 1-5, characterized in that, The carbonization tower also includes: A water pump, the outlet of which is connected to the inlet, is used to drive the flushing fluid toward the inlet.

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