Removal device for pollutants in flue gas

Abstract

The utility model discloses a removal device for pollutants in flue gas, and relates to the technical field of removal devices, the removal device for the pollutants in the flue gas comprises a flue tower, the flue tower defines a flue, an air inlet and an air outlet are formed in the flue tower, and the flue is communicated with the air inlet and the air outlet; the plurality of substance removal discs are used for removing pollutants in flue gas, the plurality of substance removal discs are sequentially arranged in the extending direction of the flue, at least part of each substance removal disc is located in the flue, and at least two substance removal discs are used for removing different types of pollutants in the flue gas. Therefore, the plurality of substance removal discs are arranged for removing the pollutants in the flue gas, the plurality of substance removal discs are sequentially arranged along the extending direction of the flue, and the at least two substance removal discs are used for removing different types of pollutants in the flue gas, so that various pollutants can be removed at one time, and the pollutant removal cost can be further reduced; and the device for removing the pollutants in the flue gas is simple in structure, simple to operate and small in occupied area.

Description

Technical Field

[0001] This utility model relates to the field of removal device technology, and in particular to a device for removing pollutants from flue gas. Background Technology

[0002] In related technologies, coal, due to its complex chemical composition, produces a large number of pollutants during combustion, such as SOx, NOx, CO2, CO, volatile heavy metals, and other volatile organic compounds. Therefore, it is necessary to remove pollutants from the flue gas produced by coal combustion. However, existing pollutant removal methods require multiple devices, resulting in a large footprint for the removal equipment. Furthermore, wet desulfurization and dechlorination systems are costly and require multiple removal processes, making the operation quite complex. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one objective of the present invention is to provide a device for removing pollutants from flue gas, which can remove multiple pollutants at once, thereby reducing the cost of pollutant removal. Furthermore, the device for removing pollutants from flue gas has a simple structure, is easy to operate, and occupies a small area.

[0004] The device for removing pollutants from flue gas according to an embodiment of the present invention includes: a flue tower defining a flue, the flue tower having an air inlet and an air outlet, the flue connecting the air inlet and the air outlet; a plurality of substance removal discs for removing pollutants from the flue gas, the plurality of substance removal discs being arranged sequentially along the extension direction of the flue, and at least a portion of each substance removal disc being located within the flue, and at least two substance removal discs removing different types of pollutants from the flue gas.

[0005] According to the present invention, the device for removing pollutants from flue gas is provided with multiple material removal discs for removing pollutants from flue gas. The multiple material removal discs are arranged sequentially along the extension direction of the flue. At least two material removal discs remove different types of pollutants from the flue gas, which can remove multiple pollutants at one time, thereby reducing the cost of pollutant removal. Furthermore, the device for removing pollutants from flue gas has a simple structure, is easy to operate, and occupies a small area.

[0006] According to some embodiments of the present invention, the sidewall of the chimney is formed with a plurality of clearance through holes, the plurality of clearance through holes are arranged sequentially along the extension direction of the flue, a plurality of material removal discs are respectively inserted through the plurality of clearance through holes, and at least one material removal disc rotates around a rotation axis, the rotation axis being parallel to the extension direction of the flue.

[0007] According to some embodiments of this utility model, multiple material removal discs and multiple clearance through holes correspond one-to-one.

[0008] According to some embodiments of the present invention, the device for removing pollutants from flue gas further includes: a mounting shaft, which passes through multiple material removal discs, and the multiple material removal discs are mounted on the mounting shaft. The central axis of the mounting shaft is configured as a rotation axis, and the central axis of the mounting shaft and the central axis of each material removal disc are collinear.

[0009] According to some embodiments of the present invention, each material removal disc includes: a plurality of material removal blocks, which are arranged sequentially along the circumference of the corresponding material removal disc.

[0010] According to some embodiments of the present invention, at least two substance removal blocks in each substance removal disc remove different types of pollutants from the flue gas.

[0011] According to some embodiments of the present invention, the cross-sectional shape of the material removal block is the same as the cross-sectional shape of the flue, and the cross-sectional area of ​​the material removal block is the same as the cross-sectional area of ​​the flue.

[0012] According to some embodiments of the present invention, each material removal disc further includes: an outer fixing ring and an inner rotating block, the outer fixing ring being sleeved on the inner rotating block, the mounting shaft passing through the inner rotating block, the inner rotating block being rotatably mounted on the mounting shaft, and the material removal block being detachably mounted on the corresponding inner rotating block.

[0013] According to some embodiments of the present invention, the inner rotating block forms multiple installation spaces, which are arranged sequentially along the circumference of the corresponding material removal disc, and the corresponding material removal block is installed in the installation space.

[0014] According to some embodiments of the present invention, the device for removing pollutants from flue gas further includes: an escalator, with an outer fixing ring fixed to the escalator.

[0015] According to some embodiments of the present invention, the device for removing pollutants from flue gas further includes: a dust collector, the flue extending along the height direction of the device for removing pollutants from flue gas, and the dust collector located at the lower end of the flue and connected to the flue.

[0016] According to some embodiments of the present invention, the device for removing pollutants from flue gas further includes: multiple soot blowers, which are arranged sequentially along the height direction of the device for removing pollutants from flue gas and fixed in the flue tower, and the multiple soot blowers are located in the flue.

[0017] According to some embodiments of the present invention, the device for removing pollutants from flue gas further includes a dust filter located upstream of multiple material removal discs along the gas flow direction within the flue.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of the structure of the pollutant removal device in flue gas according to an embodiment of the present invention;

[0021] Figure 2 This is a top view of the material removal disc after the material removal block is installed according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the material removal disc according to an embodiment of the present invention.

[0023] Figure label:

[0024] Removal device 100;

[0025] 10. Chimney; 11. Flue; 12. Air inlet; 13. Air outlet;

[0026] Material removal disc 20; material removal block 21; outer fixing ring 22; inner rotating block 23; mounting hole 231; mounting space 24;

[0027] Mounting shaft 30;

[0028] Escalator 40;

[0029] Dust collector 50. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] The following is for reference. Figures 1-3 The present invention describes a device 100 for removing pollutants from flue gas according to an embodiment of the present invention, which can be used to remove pollutants from flue gas generated by coal combustion.

[0032] like Figures 1-3As shown, the flue gas pollutant removal device 100 according to an embodiment of the present invention includes: a flue tower 10, the flue tower 10 defining a flue 11, the flue tower 10 having an air inlet 12 and an air outlet 13, the flue 11 connecting the air inlet 12 and the air outlet 13; a plurality of substance removal discs 20, the plurality of substance removal discs 20 being used to remove pollutants from the flue gas, the plurality of substance removal discs 20 being arranged sequentially along the extension direction of the flue 11, and at least a portion of each substance removal disc 20 being located within the flue 11, and at least two substance removal discs 20 removing different types of pollutants from the flue gas.

[0033] The flue 10 defines a flue 11, which has an inlet 12 and an outlet 13. The flue 11 connects the inlet 12 and the outlet 13. The flue gas generated by coal combustion enters the flue 11 through the inlet 12 and then exits through the outlet 13, ensuring a stable flow path for the flue gas within the flue 10. The pollutant removal device 100 has multiple material removal discs 20. For example, the pollutant removal device 100 can have two, three, four, or five material removal discs 20, but this invention is not limited to this. The pollutant removal device 100 can also have other numbers of material removal discs 20, as long as the pollutant removal device 100 has multiple material removal discs 20. This application uses four material removal discs 20 as an example for illustration.

[0034] Multiple material removal discs 20 are used to remove pollutants from flue gas. The multiple material removal discs 20 are arranged sequentially along the extension direction of the flue 11, and at least a portion of each material removal disc 20 is located inside the flue 11. For example, one-quarter or one-fifth of each material removal disc 20 is located inside the flue 11. However, this utility model is not limited to this. Each material removal disc 20 may also have other proportions located inside the flue 11, as long as at least a portion of each material removal disc 20 is located inside the flue 11. This allows the flue gas to flow sequentially through the multiple material removal discs 20 inside the flue 11, so that the flue gas can effectively contact each material removal disc 20, thereby enabling each material removal disc 20 to remove pollutants from the flue gas. At least two of the substance removal discs 20 remove different types of pollutants from the flue gas. For example, there can be two, three, or four different types of pollutants removed from the flue gas. However, this invention is not limited to this; other numbers of substance removal discs 20 can also remove different types of pollutants from the flue gas, as long as at least two of the substance removal discs 20 remove different types of pollutants. This application uses the example of multiple substance removal discs 20 removing different types of pollutants from the flue gas for illustration.

[0035] The working principle of the flue gas pollutant removal device 100 is as follows: Flue gas enters the flue gas tower 10 through the inlet 12 and flows within the flue duct 11. During its flow, the flue gas passes through multiple material removal discs 20 in sequence. Each material removal disc 20 removes a specific type of pollutant. After being processed by multiple material removal discs 20, the pollutants in the flue gas can be effectively removed. Finally, the purified flue gas is discharged from the flue gas tower 10 through the outlet 13. This configuration allows the flue gas pollutant removal device 100 to remove multiple pollutants from the flue gas at once, eliminating the need for additional pollutant removal equipment and multiple processes. This reduces the cost of pollutant removal. Furthermore, the flue gas pollutant removal device 100 has a simple structure, is easy to operate, and occupies a small area, thereby enhancing its practical value and reducing operating costs.

[0036] According to the present invention, the flue gas pollutant removal device 100 uses multiple material removal discs 20 to remove pollutants from the flue gas. The multiple material removal discs 20 are arranged sequentially along the extension direction of the flue duct 11. At least two material removal discs 20 remove different types of pollutants from the flue gas, which can remove multiple pollutants at one time, thereby shortening the pollutant removal process, reducing the number of pollutant removal devices, and thus reducing the pollutant removal cost. Furthermore, the flue gas pollutant removal device 100 has a simple structure, is easy to operate, and occupies a small area.

[0037] According to some embodiments of the present invention, such as Figure 2 As shown, each material removal disk 20 may include multiple material removal blocks 21, which are arranged sequentially along the circumference of the corresponding material removal disk 20.

[0038] Each substance removal disc 20 may include multiple substance removal blocks 21. For example, each substance removal disc 20 may include two, three, four, five, or other numbers of substance removal blocks 21. However, this invention is not limited to this; each substance removal disc 20 may also include other numbers of substance removal blocks 21, as long as each substance removal disc 20 includes multiple substance removal blocks 21. This application uses an example of each substance removal disc 20 including six substance removal blocks 21 for illustration. The substance removal blocks 21 may be equipment, catalysts, adsorbents, etc. The substance removal blocks 21 in multiple substance removal discs 20 may be equipment or catalysts or adsorbents with different functions and properties. Multiple material removal blocks 21 are arranged sequentially along the circumference of the corresponding material removal disk 20, so that each material removal block 21 is arranged as an independent unit, which facilitates maintenance and upgrading. When a material removal block 21 fails, malfunctions, or needs to be replaced, the material removal block 21 can be replaced individually without affecting the operation of the entire flue gas pollutant removal device 100, thereby improving the working efficiency of the flue gas pollutant removal device 100.

[0039] According to some embodiments of the present invention, the sidewall of the chimney 10 is formed with a plurality of clearance through holes, the plurality of clearance through holes are arranged sequentially along the extension direction of the flue 11, a plurality of material removal discs 20 are respectively inserted through the plurality of clearance through holes, and at least one material removal disc 20 rotates around a rotation axis, the rotation axis being parallel to the extension direction of the flue 11.

[0040] The sidewall of the chimney 10 can have multiple clearance through holes, such as two, three, four, or five. However, this invention is not limited to this; the sidewall of the chimney 10 can also have other numbers of clearance through holes, as long as the sidewall of the chimney 10 can have multiple clearance through holes. This application uses four clearance through holes on the sidewall of the chimney 10 as an example for explanation. The number of clearance through holes is the same as the number of material removal discs 20, and the multiple clearance through holes correspond one-to-one with the multiple material removal discs 20. Multiple clearance through holes are arranged sequentially along the extension direction of the flue 11, and multiple material removal discs 20 are respectively inserted through the multiple clearance through holes, so that each of the multiple material removal discs 20 is at least partially located inside the flue 11. This allows the flue gas in the flue 11 to pass through the multiple material removal discs 20, thereby allowing the multiple material removal discs 20 to remove pollutants from the flue gas, achieving the purpose of removing pollutants from the flue gas. Furthermore, the multiple material removal discs 20 remove different types of pollutants from the flue gas, so that the pollutant removal device 100 can remove multiple pollutants at once, thereby shortening the pollutant removal process, reducing the number of pollutant removal devices, and thus reducing the pollutant removal cost.

[0041] At least one material removal disc 20 rotates around a rotation axis, which is parallel to the extension direction of the flue 11. For example, there may be one, two, or three material removal discs 20 rotating around the rotation axis, but this invention is not limited to this. Other numbers of material removal discs 20 may also rotate around the rotation axis, as long as at least one material removal disc 20 rotates around the rotation axis. This invention is illustrated by taking the example that each material removal disc 20 rotates around the rotation axis.

[0042] As an example of this application, when the pollutant removal device 100 in flue gas is in operation, each material removal disc 20 has a material removal block 21 inserted through a corresponding clearance hole, so that the flue gas can pass through the material removal block 21 to achieve the effect of removing pollutants from the flue gas. Furthermore, by rotating the material removal disc 20 around its rotation axis, the material removal block 21 inserted through the clearance hole in the material removal disc 20 can be replaced. Specifically, when the material removal block 21 inserted through the clearance hole fails, the material removal disc 20 rotates around its rotation axis, which can rotate the failed material removal block 21 located in the flue duct 11 out of the flue duct 11, and a new material removal block 21 is then inserted into the flue duct 11 to continue the removal work. This allows for the direct replacement of the failed material removal block 21 during the operation of the pollutant removal device 100 without stopping the machine, thereby greatly improving the working efficiency of the pollutant removal device 100 in flue gas.

[0043] According to some embodiments of this utility model, multiple material removal discs 20 and multiple clearance through holes are arranged in a one-to-one correspondence, which can ensure that the flue gas can flow smoothly through each material removal disc 20 when flowing in the flue gas tower 10. The material removal blocks 21 in the material removal disc 20 can efficiently remove specific substances in the flue gas. The one-to-one correspondence arrangement ensures that each material removal disc 20 can fully play its role, thereby improving the overall removal efficiency, avoiding turbulent flow of flue gas inside the flue gas tower 10, reducing energy loss, and improving the efficiency of flue gas treatment. This makes the entire flue gas pollutant removal device 100 more compact and efficient, reduces unnecessary pipe connections and auxiliary equipment, and lowers the complexity and maintenance cost of the flue gas pollutant removal device 100.

[0044] According to some embodiments of the present invention, such as Figure 1 As shown, the pollutant removal device 100 in flue gas further includes: a mounting shaft 30, which passes through multiple material removal discs 20. The multiple material removal discs 20 are mounted on the mounting shaft 30. The central axis of the mounting shaft 30 is configured as a rotation axis, and the central axis of the mounting shaft 30 and the central axis of each material removal disc 20 are collinear.

[0045] In this invention, each of the multiple material removal discs 20 has a mounting hole 231 formed at its center, extending through the thickness of the respective disc 20. A mounting shaft 30 passes through the mounting holes 231 of the multiple material removal discs 20, and the multiple material removal discs 20 are mounted on the mounting shaft 30. In some examples, the mounting shaft 30 and the material removal discs 20 are rotatably connected by bearings, or by hinges. However, this invention is not limited to these methods; the mounting shaft 30 and the material removal discs 20 can also be rotatably connected in other ways, as long as the multiple material removal discs 20 are mounted on the mounting shaft 30 and can rotate relative to the mounting shaft 30. In other examples, the mounting shaft 30 is fixedly connected to the material removal discs 20, and rotation of the mounting shaft 30 drives the multiple material removal discs 20 to rotate.

[0046] This application uses the example of a rotating connection between the mounting shaft 30 and the material removal disc 20 via a bearing. Further, the outer peripheral wall of the bearing is fitted with the inner wall of the mounting hole 231 of the material removal disc 20, and the inner peripheral wall of the bearing is fitted with the outer peripheral wall of the mounting shaft 30, so that the material removal disc 20 can rotate relative to the mounting shaft 30. Each material removal disc 20 can be connected to a drive device, such as a motor or internal combustion engine, which drives the corresponding material removal disc 20 to rotate around the mounting shaft 30. This allows each material removal disc 20 to replace the material removal block 21 located in the flue 11, enabling timely removal of the failed material removal block 21 from the flue 11 and replacement with a new one, thereby improving the reliability of the pollutant removal device 100 in the flue gas.

[0047] The central axis of the mounting shaft 30 is designed as a rotation axis, and the central axis of the mounting shaft 30 is collinear with the central axis of each material removal disc 20, so that the material removal disc 20 can rotate around the rotation axis. By rotating the material removal disc 20 around the rotation axis, the material removal block 21 located in the flue 11 can be replaced, thereby enabling the timely removal of the failed material removal block 21 from the flue 11. Furthermore, multiple material removal blocks 21 are arranged sequentially along the circumference of the corresponding material removal disc 20. After the failed material removal block 21 is removed from the flue 11, a new material removal block 21 is transferred into the flue 11 to continue the removal work. This allows the pollutant removal device 100 to replace the failed material removal block 21 without stopping during operation, thereby greatly improving the working efficiency of the pollutant removal device 100. In addition, by making the central axis of the mounting shaft 30 collinear with the central axis of each material removal disc 20, it is beneficial to reduce the size of the removal device 100 in the radial direction of the flue 11, thereby improving the structural compactness of the removal device 100.

[0048] According to some embodiments of the present invention, at least two substance removal blocks 21 in each substance removal disc 20 remove different types of pollutants from the flue gas.

[0049] In this design, each material removal disc 20 may contain at least two material removal blocks 21 that remove different types of pollutants from the flue gas. For example, each material removal disc 20 may contain two, three, or four material removal blocks 21 that remove different types of pollutants from the flue gas. However, this invention is not limited to this; each material removal disc 20 may also contain other numbers of material removal blocks 21 that remove different types of pollutants from the flue gas, as long as at least two material removal blocks 21 in each material removal disc 20 remove different types of pollutants from the flue gas. With this configuration, by rotating the material removal disc 20 around its axis of rotation, material removal blocks 21 that remove different types of pollutants from the flue gas can be replaced, allowing multiple pollutants to be removed within the same material removal disc 20. This helps reduce operating costs and improve energy efficiency.

[0050] According to some embodiments of the present invention, the cross-sectional shape of the material removal block 21 is the same as the cross-sectional shape of the flue 11, and the cross-sectional area of ​​the material removal block 21 is the same as the cross-sectional area of ​​the flue 11.

[0051] The cross-sectional shape of the material removal block 21 is the same as that of the flue 11, so that the material removal block 21 can be adapted to the flue 11. This not only improves the stability of the material removal block 21, but also allows the material removal block 21 to cover a larger area of ​​the flue 11, thereby increasing the contact area between the material removal block 21 and the flue gas. This makes the contact between the material removal block 21 and the flue gas more uniform, which can improve the uniformity and stability of the material removal block 21 in removing pollutants, and thus improve the pollutant removal efficiency.

[0052] Furthermore, the cross-sectional area of ​​the material removal block 21 is the same as that of the flue 11. When the flue gas flows through the flue 11, it can maintain a relatively stable flow velocity and direction. The material removal block 21 located in the flue 11 can cover the entire flue 11, reducing the eddies and turbulence caused by the sudden change in cross-sectional area. The stable flow state helps the pollutants in the flue gas to be more evenly distributed on the surface of the material removal block 21, improving the removal efficiency of pollutants and also enhancing the stability and reliability of the pollutant removal device 100 in the flue gas.

[0053] According to some embodiments of the present invention, such as Figures 2-3 As shown, each material removal disc 20 may further include: an outer fixing ring 22 and an inner rotating block 23. The outer fixing ring 22 is sleeved on the inner rotating block 23, the mounting shaft 30 passes through the inner rotating block 23, the inner rotating block 23 is rotatably mounted on the mounting shaft 30, and the material removal block 21 is detachably mounted on the corresponding inner rotating block 23.

[0054] The outer fixing ring 22 is fitted onto the inner rotating block 23, providing stable support and positioning for the inner rotating block 23. The mounting shaft 30 passes through the inner rotating block 23, allowing the inner rotating block 23 to be rotatably mounted on the mounting shaft 30. This ensures stable rotation of the inner rotating block 23 on the mounting shaft 30, preventing performance degradation due to shaking or misalignment. Furthermore, because the outer fixing ring 22 and the inner rotating block 23 have relatively independent structures, they can be easily disassembled and replaced, reducing maintenance costs and allowing for easy upgrades or improvements to the flue gas pollutant removal device 100 when needed.

[0055] The material removal block 21 is detachably installed on the corresponding inner rotating block 23. For example, the material removal block 21 and the inner rotating block 23 can be connected by a snap-fit, or the material removal block 21 can be embedded in the corresponding inner rotating block 23. However, this utility model is not limited to these methods; as long as the material removal block 21 is detachably installed on the corresponding inner rotating block 23, it is acceptable. This makes the replacement of the material removal block 21 relatively simple. When the material removal block 21 fails, the failed material removal block 21 can be removed from the corresponding inner rotating block 23 and replaced with a new material removal block 21 in a timely manner. Since the material removal block 21 can be replaced individually, it is not necessary to replace the entire material removal disc 20, thereby reducing the maintenance cost of the pollutant removal device 100 in the flue gas.

[0056] According to some embodiments of the present invention, such as Figure 3 As shown, the inner rotating block 23 forms multiple installation spaces 24, which are arranged sequentially along the circumference of the corresponding material removal disk 20, and the corresponding material removal block 21 is installed in the installation space 24.

[0057] The inner rotating block 23 forms multiple installation spaces 24, for example, the inner rotating block 23 can form two, three, four, five, six, or other numbers of installation spaces 24. However, this utility model is not limited to this, and the inner rotating block 23 can also form other numbers of installation spaces 24, as long as the inner rotating block 23 forms multiple installation spaces 24. This application describes an example where the inner rotating block 23 forms six installation spaces 24. Corresponding material removal blocks 21 are installed in the installation spaces 24. The installation spaces 24 can be constructed as through holes that penetrate the inner rotating block 23 along the thickness direction. When the material removal blocks 21 are installed in the installation spaces 24, the flue gas can flow through the material removal blocks 21 to achieve the removal effect. Multiple installation spaces 24 are arranged sequentially along the circumference of the corresponding material removal disc 20, so that multiple material removal blocks 21 are installed in the corresponding installation spaces 24 and then arranged sequentially along the circumference of the corresponding material removal disc 20. This allows the inner rotating block 23 to replace the material removal block 21 in the through hole when it rotates. When the failed material removal block 21 rotates out of the flue 11, the next new material removal block 21 is immediately rotated into the flue 11 to continue the removal work. This allows the failed material removal block 21 to be replaced during the operation of the pollutant removal device 100 in the flue gas without stopping the machine, thereby greatly improving the working efficiency of the pollutant removal device 100 in the flue gas.

[0058] According to some embodiments of the present invention, such as Figure 1 As shown, the pollutant removal device 100 in flue gas may further include: a ladder 40, with an outer fixing ring 22 fixed to the ladder 40. For example, the outer fixing ring 22 and the ladder 40 can be fixedly connected by welding, or the outer fixing ring 22 and the ladder 40 can be fixedly connected by bolts. However, this invention is not limited to these methods; the outer fixing ring 22 and the ladder 40 can also be fixedly connected by other methods, as long as the outer fixing ring 22 is fixed to the ladder 40. By fixing the outer fixing ring 22 to the ladder 40, workers can access the failed substance removal block 21 via the ladder 40, remove the failed substance removal block 21 from the corresponding installation space 24, and install a new substance removal block 21. This ensures that the pollutant removal device 100 in flue gas can operate continuously and normally, thereby improving the removal efficiency of the pollutant removal device 100 in flue gas.

[0059] According to some embodiments of the present invention, the pollutant removal device 100 in flue gas may further include: a dust collector 50, a flue 11 extending along the height direction of the removal device, and the dust collector 50 being disposed at the lower end of the flue 11 and communicating with the flue 11.

[0060] The flue 11 extends along the height of the pollutant removal device 100 in the flue gas, ensuring that the flue gas has sufficient time to react and contact with the material removal block 21 when it flows through the pollutant removal device 100. The dust collector 50 is located at the lower end of the flue 11 and is connected to the flue 11, so that the dust removed from the flue gas can naturally settle into the dust collector 50 at the lower end of the flue 11, which can effectively collect and treat the dust in the flue gas and avoid pollution to the environment.

[0061] According to some embodiments of the present invention, the pollutant removal device 100 in flue gas may further include: a plurality of soot blowers, which are arranged sequentially along the height direction of the pollutant removal device 100 in flue gas and fixed in the flue tower 10, and the plurality of soot blowers are located in the flue duct 11.

[0062] Among them, the soot blower can be used to remove accumulated ash. The soot blower can be an air soot blower, a pulse soot blower, or other types of soot blowers. Multiple soot blowers are arranged sequentially along the height direction of the pollutant removal device 100 in the flue gas and fixed in the flue tower 10. Multiple soot blowers are located in the flue 11 and can remove accumulated ash from the flue 11 and the material removal block 21 in the flue 11, reducing the risk of accumulated ash obstructing the flow of flue gas, helping to optimize the flow of flue gas in the flue 11, reducing the residence time and eddy phenomenon of flue gas in the flue 11, thereby improving the uniformity of contact between flue gas and material removal block 21, and thus improving the removal efficiency of the pollutant removal device.

[0063] According to some embodiments of the present invention, the pollutant removal device 100 in flue gas may further include: a dust filter located upstream of the plurality of material removal discs 20 along the gas flow direction in the flue 11.

[0064] The main function of the dust filter is to remove large dust particles from the flue gas. Through the filtration effect of the dust filter, the amount of dust entering the material removal block 21 can be significantly reduced, thereby reducing the burden on the material removal block 21 and improving its service life and removal efficiency. Along the gas flow direction in the flue 11, the dust filter is located upstream of the multiple material removal discs 20. In other words, the dust filter is located closer to the air inlet 12 of the flue 11, so that the flue gas undergoes preliminary dust removal treatment, and then passes through the material removal block 21. Through the pretreatment of the dust filter, the amount of dust in the flue gas is significantly reduced, which helps to improve the removal efficiency of the material removal discs 20, and thus improves the removal efficiency of the pollutant removal device 100 in the flue gas.

[0065] Furthermore, as an example of this application, the pollutant removal device 100 in the flue gas of this application can be provided with four material removal discs 20. Along the height direction of the flue 10, four clearance through holes are formed on the side wall of the flue 10. The four material removal discs 20 are arranged one-to-one with the four clearance through holes. Each material removal disc 20 can contain multiple material removal blocks 21. For example, each material removal disc 20 can contain six material removal blocks 21. The six material removal blocks 21 are installed sequentially in the installation space 24 along the circumference of the inner rotating block 23. One of the six material removal blocks 21 in each material removal disc 20 is located in the flue 11. When the material removal block 21 in the flue 11 fails, the inner rotating block 23 in the corresponding material removal disc 20 can be rotated by a motor to rotate the corresponding material removal block 21 out of the flue 11 and allow a new corresponding material removal block 21 to rotate into the flue 11 for removal.

[0066] like Figure 1 As shown, along the height direction of the smoke tower 10 from bottom to top, there are four material removal disks 20:

[0067] The material removal block 21 in the material removal disc 20 of the first layer can be a dust filter. The dust filter performs preliminary dust removal treatment on the flue gas, which can greatly reduce the amount of dust in the flue gas. A pulse soot blower can be installed in the chimney 10 at the position corresponding to the material removal disc 20 of the first layer. The pulse soot blower has a strong blowing ability and can effectively blow away larger volumes of dust and other materials. The pulse soot blower blows the dust filter of the material removal disc 20 of the first layer. The dust filtered by the dust filter falls into the dust collector 50 after being blown away.

[0068] The material removal block 21 in the second layer material removal disk 20 can be a desulfurizing agent, used to adsorb sulfur-containing substances in flue gas.

[0069] The substance removal block 21 in the third layer substance removal disk 20 can be a triple-effect catalyst, used to adsorb or catalyze substances such as NOx, CHx, and CO in flue gas.

[0070] The material removal block 21 in the fourth layer material removal disk 20 can be activated carbon or molecular sieve adsorbent, which is used to further adsorb gaseous pollutants in the flue gas. The flue gas that has been removed and purified is then discharged through the gas outlet 13 of the flue gas tower 10.

[0071] Air blowers can be installed at the positions of the material removal plates 20 corresponding to the second, third, and fourth layers inside the chimney 10 to blow away dust and other substances from the surface of the material removal blocks 21 of the second, third, and fourth layers. The blown dust and other substances fall into the dust collector 50.

[0072] However, this utility model is not limited to this. There may be more material removal discs 20. The number of material removal discs 20 can be increased according to the composition or concentration of pollutants in the flue gas to be removed. The rotation speed of each material removal disc 20 can also be reasonably set according to the failure time of the corresponding material removal block 21.

[0073] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0074] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An apparatus for removing pollutants from flue gas, characterized in that, The utility model relates to a kind of flue gas treatment device, including: Flue tower, the flue tower defines flue, the flue tower is formed with air inlet and air outlet, the flue is communicated with the air inlet and the air outlet; Multiple substance removal discs, multiple the substance removal discs are used to remove pollutants in flue gas, multiple the substance removal discs are sequentially arranged along the extension direction of the flue, and at least part of each the substance removal disc is located in the flue, and at least two the substance removal discs remove different types of pollutants in flue gas.

2. The device for removing pollutants from flue gases according to claim 1, characterized in that, The side wall of the flue tower is formed with multiple avoidance through holes, multiple the avoidance through holes are sequentially arranged along the extension direction of the flue, multiple the substance removal discs are respectively arranged in multiple the avoidance through holes, at least one the substance removal disc rotates around rotation axis, and the rotation axis is parallel to the extension direction of the flue.

3. The device for removing pollutants from flue gases according to claim 2, characterized in that, Multiple the substance removal discs and multiple the avoidance through holes are one-to-one corresponding.

4. The device for removing pollutants from flue gases according to claim 2, characterized in that, Further including: Mounting shaft, the mounting shaft is arranged in multiple the substance removal discs, multiple the substance removal discs are mounted on the mounting shaft, the central axis of the mounting shaft is configured as the rotation axis, and the central axis of the mounting shaft is collinear with the central axis of each the substance removal disc.

5. The device for removing pollutants from flue gas according to claim 4, characterized in that, Each the substance removal disc includes multiple substance removal blocks, and multiple the substance removal blocks are sequentially arranged along the circumference of the corresponding the substance removal disc.

6. The device for removing pollutants from flue gas according to claim 5, characterized in that, At least two the substance removal blocks in each the substance removal disc remove different types of pollutants in flue gas.

7. The device for removing pollutants from flue gas according to claim 5, characterized in that, The cross-sectional shape of the substance removal block is the same as the cross-sectional shape of the flue, and the cross-sectional area of the substance removal block is the same as the cross-sectional area of the flue.

8. The device for removing pollutants from flue gas according to claim 5, characterized in that, Each the substance removal disc further includes an outer fixed ring and an inner rotating block, the outer fixed ring is sleeved on the inner rotating block, the mounting shaft is arranged in the inner rotating block, the inner rotating block is rotatably mounted on the mounting shaft, and the substance removal block is detachably mounted on the corresponding inner rotating block.

9. The device for removing pollutants from flue gas according to claim 8, characterized in that, The inner rotating block is formed with multiple mounting spaces, multiple the mounting spaces are sequentially arranged along the circumference of the corresponding the substance removal disc, and the corresponding the substance removal block is mounted in the mounting space.

10. The device for removing pollutants from flue gas according to claim 8, characterized in that, Further including: Escalator, the outer fixed ring is fixedly arranged on the escalator.

11. The device for removing pollutants from flue gases according to any one of claims 1-10, characterized in that, Further including: Dust collector, the flue extends along the height direction of the flue gas pollutant removal device, and the dust collector is arranged at the lower end of the flue and communicates with the flue.

12. The device for removing pollutants from flue gas according to claim 11, characterized in that, Further including: Multiple soot blowers, multiple the soot blowers are sequentially arranged along the height direction of the flue gas pollutant removal device and fixedly arranged on the flue tower, and multiple the soot blowers are located in the flue.

13. The device for removing pollutants from flue gases according to any one of claims 1-10, characterized in that, Further including: Dust filter, along the gas flow direction in the flue, the dust filter is located on the upstream side of multiple the substance removal discs.

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