Removal device for pollutants in flue gas

Abstract

The invention discloses a device for removing pollutants in flue gas, and relates to the technical field of removing devices.The device for removing pollutants in flue gas comprises a flue tower, a gas inlet and a gas outlet are formed in the flue tower, and the flue is communicated with the gas inlet and the gas 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] The invention relates to the technical field of removal devices, and in particular to a device for removing pollutants from flue gas. Background Art

[0002] In the related technology, coal will produce a large amount of pollutants during the combustion process due to its complex chemical composition, such as SOx, NOx, CO2, CO, heavy metal volatiles and other volatile organic compounds. Therefore, it is necessary to remove the pollutants in the flue gas produced by coal combustion. However, the existing pollutant removal method requires multiple equipment for removal, resulting in a large footprint of the removal device, and the use of a wet desulfurization and dechlorination system has a high cost and requires multiple removal processes, which is relatively complicated to operate. Summary of the invention

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

[0004] According to an embodiment of the present invention, a device for removing pollutants from flue gas includes: a chimney tower, which defines a flue, the chimney tower is formed with an air inlet and an air outlet, and the flue connects the air inlet and the air outlet; a plurality of material removal disks, the plurality of material removal disks are used to remove pollutants from the flue gas, the plurality of material removal disks are arranged in sequence along the extension direction of the flue, and at least a portion of each material removal disk is located in the flue, and at least two material removal disks remove different types of pollutants from the flue gas.

[0005] According to the device for removing pollutants from flue gas according to the embodiment of the present invention, a plurality of material removal disks are provided for removing pollutants from flue gas. The plurality of material removal disks are arranged in sequence along the extension direction of the flue. At least two material removal disks remove different types of pollutants from the flue gas. Multiple pollutants can be removed at one time, thereby reducing the cost of removing pollutants. In addition, the device for removing pollutants from flue gas has a simple structure, simple operation and small footprint.

[0006] According to some embodiments of the present invention, a plurality of avoidance holes are formed on the side wall of the smoke tower, and the plurality of avoidance holes are arranged in sequence along the extension direction of the smoke duct. A plurality of material removal disks are respectively inserted into the plurality of avoidance holes, and at least one material removal disk rotates around a rotation axis, and the rotation axis is parallel to the extension direction of the smoke duct.

[0007] According to some embodiments of the present invention, the plurality of material removal disks and the plurality of avoidance 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, the mounting shaft passing through a plurality of material removal disks, the plurality of material removal disks being mounted on the mounting shaft, the central axis of the mounting shaft being constructed as a rotation axis, and the central axis of the mounting shaft and the central axis of each material removal disk being collinear.

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

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

[0011] According to some embodiments of the present invention, 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.

[0012] According to some embodiments of the present invention, each material removal disk 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 passes through the inner rotating block, the inner rotating block is rotatably mounted on the mounting shaft, and the material removal block is detachably mounted on the corresponding inner rotating block.

[0013] According to some embodiments of the present invention, the inner rotating block is formed with a plurality of installation spaces, the plurality of installation spaces are sequentially arranged along the circumference of the corresponding substance removal disk, and the corresponding substance removal blocks are installed in the installation spaces.

[0014] According to some embodiments of the present invention, the device for removing pollutants from flue gas further includes: an escalator, and the outer fixing ring is 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 extends along the height direction of the device for removing pollutants from flue gas, and the dust collector is arranged at the lower end of the flue and is connected to the flue.

[0016] According to some embodiments of the present invention, the device for removing pollutants from flue gas further includes: a plurality of soot blowers, which are arranged in sequence along the height direction of the device for removing pollutants from flue gas and fixed to the smoke tower, and the plurality of 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, which is located on the upstream side of the plurality of material removal disks along the gas flow direction in the flue.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 Schematic diagram of the structure of a device for removing pollutants from flue gas according to an embodiment of the present invention;

[0021] Figure 2 is a top view of the substance removal disk after the substance removal block is installed in the embodiment of the present invention;

[0022] Figure 3 Schematic diagram of the structure of the material removal disk according to an embodiment of the present invention.

[0023] Reference numerals:

[0024] Removal device 100;

[0025] Smoke tower 10; flue 11; air inlet 12; air outlet 13;

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

[0027] Install shaft 30;

[0028] Escalator 40;

[0029] Dust collector 50. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] Reference below Figure 1-Figure 3 The device 100 for removing pollutants from flue gas according to an embodiment of the present invention is described, and can be used to remove pollutants from flue gas generated by coal combustion.

[0032] like Figure 1-Figure 3As shown, a device 100 for removing pollutants from flue gas according to an embodiment of the present invention includes: a smoke tower 10, the smoke tower 10 defines a smoke duct 11, the smoke tower 10 is formed with an air inlet 12 and an air outlet 13, and the smoke duct 11 connects the air inlet 12 and the air outlet 13; a plurality of material removal disks 20, the plurality of material removal disks 20 are used to remove pollutants from the flue gas, the plurality of material removal disks 20 are arranged in sequence along the extension direction of the smoke duct 11, and at least a portion of each material removal disk 20 is located in the smoke duct 11, and at least two material removal disks 20 remove different types of pollutants from the smoke.

[0033] Among them, the smoke tower 10 defines a flue 11, and the smoke tower 10 is formed with an air inlet 12 and an air outlet 13. The flue 11 connects the air inlet 12 and the air outlet 13. The smoke generated by the combustion of coal enters the flue 11 from the air inlet 12 and is then discharged from the air outlet 13 to ensure that the smoke can form a stable flow path inside the smoke tower 10. The device 100 for removing pollutants from flue gas has a plurality of material removal discs 20. For example, the device 100 for removing pollutants from flue gas can have two, three, four, five or other number of material removal discs 20, but the present invention is not limited thereto. The device 100 for removing pollutants from flue gas can also have other number of material removal discs 20, as long as the device 100 for removing pollutants from flue gas has a plurality of material removal discs 20. This application is described by taking four material removal discs 20 as an example.

[0034] Multiple material removal disks 20 are used to remove pollutants from the flue gas. The multiple material removal disks 20 are arranged in sequence along the extension direction of the flue 11, and at least a portion of each material removal disk 20 is located in the flue 11. For example, a quarter, a fifth, etc. portion of each material removal disk 20 is located in the flue 11, but the present invention is not limited to this. Each material removal disk 20 may also have other proportions located in the flue 11, as long as at least a portion of each material removal disk 20 is located in the flue 11, the flue gas can flow through the multiple material removal disks 20 in sequence in the flue 11, so that the flue gas effectively contacts each material removal disk 20, so that each material removal disk 20 can remove pollutants from the flue gas. At least two material removal discs 20 remove different types of pollutants from the flue gas. For example, there may be two, three, four, etc. material removal discs 20 that remove different types of pollutants from the flue gas, but the present invention is not limited thereto. There may also be other numbers of material removal discs 20 that remove different types of pollutants from the flue gas, as long as at least two material removal discs 20 remove different types of pollutants from the flue gas. This application is described by taking the example that multiple material removal discs 20 remove different types of pollutants from the flue gas.

[0035] The working principle of the device 100 for removing pollutants from flue gas is as follows: the flue gas enters the smoke tower 10 from the air inlet 12 and flows in the flue 11. During the flow, the flue gas will pass through a plurality of material removal discs 20 in sequence. Each material removal disc 20 will remove a specific type of pollutants. After the removal treatment by the plurality of material removal discs 20, the pollutants in the flue gas can be effectively removed. Finally, the flue gas after removal and purification is discharged from the smoke tower 10 from the air outlet 13. With such a configuration, the device 100 for removing pollutants from flue gas can remove multiple pollutants from the flue gas at one time, without the need to set up more pollutant removal equipment or to remove pollutants through multiple processes, which can reduce the cost of removing pollutants from flue gas. In addition, the device 100 for removing pollutants from flue gas has a simple structure, simple operation, and small footprint, thereby improving the practical value and use cost of the device 100 for removing pollutants from flue gas.

[0036] According to the device 100 for removing pollutants from flue gas according to the embodiment of the present invention, a plurality of material removal discs 20 are provided for removing pollutants from flue gas. The plurality of material removal discs 20 are arranged in sequence along the extension direction of the flue 11. At least two material removal discs 20 remove different types of pollutants from the flue gas, and a plurality of pollutants can be removed at one time, thereby shortening the pollutant removal process, reducing the number of pollutant removal equipment, and further reducing the pollutant removal cost. In addition, the device 100 for removing pollutants from flue gas has a simple structure, is easy to operate, and occupies a small area.

[0037] According to some embodiments of the present invention, Figure 2 As shown, each substance removal disk 20 may include: a plurality of substance removal blocks 21 , and the plurality of substance removal blocks 21 are sequentially arranged along the circumference of the corresponding substance removal disk 20 .

[0038] Each substance removal tray 20 may include: a plurality of substance removal blocks 21, for example: each substance removal tray 20 may include two, three, four, five, etc., substance removal blocks 21, but the present invention is not limited thereto, each substance removal tray 20 may also include other numbers of substance removal blocks 21, as long as each substance removal tray 20 includes a plurality of substance removal blocks 21. This application is described by taking each substance removal tray 20 including six substance removal blocks 21 as an example, the substance removal blocks 21 may be equipment, catalysts, adsorbents, etc., and the substance removal blocks 21 in the plurality of substance removal trays 20 may be equipment or catalysts, adsorbents with different functions and properties. Multiple material removal blocks 21 are arranged in sequence along the circumference of the corresponding material removal disk 20, so that each material removal block 21 is arranged as an independent unit, which is convenient for 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, a plurality of avoidance holes are formed on the side wall of the smoke tower 10, and the plurality of avoidance holes are arranged in sequence along the extension direction of the flue 11. A plurality of material removal disks 20 are respectively inserted into the plurality of avoidance holes, and at least one material removal disk 20 rotates around a rotation axis, and the rotation axis is parallel to the extension direction of the flue 11.

[0040] The side wall of the smoke tower 10 may be formed with a plurality of avoidance through holes, for example, the side wall of the smoke tower 10 may be formed with two, three, four, five, etc. avoidance through holes, but the present invention is not limited thereto, and the side wall of the smoke tower 10 may also be formed with other numbers of avoidance through holes, as long as the side wall of the smoke tower 10 can be formed with a plurality of avoidance through holes. This application takes the example of the side wall of the smoke tower 10 being formed with four avoidance through holes, the number of avoidance through holes is the same as the number of the material removal disks 20, and the plurality of avoidance through holes is arranged in a one-to-one correspondence with the plurality of material removal disks 20. A plurality of avoidance through holes are arranged in sequence along the extension direction of the flue 11, and a plurality of material removal disks 20 are respectively penetrated through the plurality of avoidance through holes, so that the plurality of material removal disks 20 are at least partially located in the flue 11, so that the flue gas in the flue 11 can pass through the plurality of material removal disks 20, and then the plurality of material removal disks 20 can remove pollutants in the flue gas, so as to achieve the purpose of removing pollutants in the flue gas, and the plurality of material removal disks 20 remove different types of pollutants in the flue gas, so that the device 100 for removing pollutants in the flue gas can remove multiple pollutants at one time, thereby shortening the pollutant removal process, reducing the number of pollutant removal equipment, and thus reducing the pollutant removal cost.

[0041] At least one material removal disk 20 rotates around the rotation axis, and the rotation axis is parallel to the extension direction of the flue 11. For example, there may be one, two, three or other number of material removal disks 20 rotating around the rotation axis, but the present invention is not limited thereto. There may also be other numbers of material removal disks 20 rotating around the rotation axis, as long as at least one material removal disk 20 rotates around the rotation axis. The present invention is described by taking the example that each material removal disk 20 rotates around the rotation axis.

[0042] As an example of the present application, when the device 100 for removing pollutants from flue gas is working, each material removal disc 20 has a material removal block 21 that is inserted into the corresponding avoidance through 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. And by rotating the material removal disc 20 around the rotation axis, the material removal block 21 inserted into the avoidance through hole in the material removal disc 20 can be replaced. Specifically, when the material removal block 21 inserted into the avoidance through hole fails, the material removal disc 20 rotates around the rotation axis, and the failed material removal block 21 located in the flue 11 can be transferred out of the flue 11, and the new material removal block 21 is immediately transferred into the flue 11 to continue the removal work, so that the failed material removal block 21 can be directly replaced during the operation of the device 100 for removing pollutants from flue gas without stopping the machine, thereby greatly improving the working efficiency of the device 100 for removing pollutants from flue gas.

[0043] According to some embodiments of the present invention, a plurality of material removal disks 20 and a plurality of avoidance holes are arranged in a one-to-one correspondence, which can ensure that the flue gas can smoothly flow through each material removal disk 20 when flowing in the smoke tower 10, and the material removal block 21 in the material removal disk 20 can efficiently remove specific substances in the flue gas. The one-to-one corresponding arrangement ensures that each material removal disk 20 can fully play its role, thereby improving the overall removal efficiency, avoiding the turbulent flow of flue gas inside the smoke tower 10, reducing energy loss, and improving the efficiency of flue gas treatment, making the entire flue gas pollutant removal device 100 more compact and efficient, reducing unnecessary pipeline connections and auxiliary equipment, and reducing the complexity and maintenance cost of the flue gas pollutant removal device 100.

[0044] According to some embodiments of the present invention, Figure 1 As shown, the device 100 for removing pollutants from flue gas also includes: a mounting shaft 30, the mounting shaft 30 is passed through a plurality of material removal disks 20, a plurality of material removal disks 20 are mounted on the mounting shaft 30, the central axis of the mounting shaft 30 is constructed as a rotation axis, and the central axis of the mounting shaft 30 is collinear with the central axis of each material removal disk 20.

[0045] Among them, a mounting hole 231 is formed at the center of each of the plurality of material removal disks 20, which penetrates the corresponding material removal disk 20 along the thickness direction of the material removal disk 20. The mounting shaft 30 is penetrated through the mounting holes 231 of the plurality of material removal disks 20. The plurality of material removal disks 20 are mounted on the mounting shaft 30. In some examples, the mounting shaft 30 and the material removal disk 20 can be rotatably connected through a bearing, or the mounting shaft 30 and the material removal disk 20 can be rotatably connected through a hinge, but the present invention is not limited thereto. The mounting shaft 30 and the material removal disk 20 can also be rotatably connected in other ways, as long as the plurality of material removal disks 20 are mounted on the mounting shaft 30, and the material removal disk 20 can rotate relative to the mounting shaft 30. In other examples, the mounting shaft 30 is fixedly connected to the material removal disk 20, and the rotation of the mounting shaft 30 drives the plurality of material removal disks 20 to rotate.

[0046] The present application takes the example of the rotational connection between the mounting shaft 30 and the material removal disk 20 through a bearing. Furthermore, the outer circumferential wall of the bearing is assembled with the inner wall of the mounting hole 231 of the material removal disk 20, and the inner circumferential wall of the bearing is assembled with the outer circumferential wall of the mounting shaft 30, so that the material removal disk 20 can rotate relative to the mounting shaft 30, and each material removal disk 20 can be connected to a driving device, such as: a motor, an internal combustion engine or other driving device, and the corresponding material removal disk 20 is driven by the driving device to rotate around the mounting shaft 30, so that each material removal disk 20 can replace the material removal block 21 located in the flue 11, so that the failed material removal block 21 can be rotated out of the flue 11 in time, and replaced with a new material removal block 21, thereby improving the reliability of the device 100 for removing pollutants in the flue gas.

[0047] The central axis of the mounting shaft 30 is constructed as a rotation axis, and the central axis of the mounting shaft 30 is colinear with the central axis of each material removal disk 20, so that the material removal disk 20 can rotate around the rotation axis. By rotating the material removal disk 20 around the rotation axis, the material removal block 21 located in the flue 11 can be replaced, so that the failed material removal block 21 can be promptly rotated out of the flue 11, and multiple material removal blocks 21 are arranged in sequence along the circumference of the corresponding material removal disk 20. After the failed material removal block 21 is rotated out of the flue 11, a new material removal block 21 is transferred into the flue 11 to continue the removal work, so that the device 100 for removing pollutants from the flue gas can replace the failed material removal block 21 without stopping during operation, thereby greatly improving the working efficiency of the device 100 for removing pollutants from the flue gas. In addition, by aligning the central axis of the installation shaft 30 and the central axis of each material removal disk 20 , it is helpful to reduce the size of the removal device 100 along the radial direction of the flue 11, thereby facilitating the improvement of 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 disk 20 remove different types of pollutants in the flue gas.

[0049] Among them, each material removal disk 20 may also have at least two material removal blocks 21 that remove different types of pollutants in the flue gas. For example, each material removal disk 20 may have two, three, four, etc. material removal blocks 21 that remove different types of pollutants in the flue gas, but the present invention is not limited to this. Each material removal disk 20 may also have other numbers of material removal blocks 21 that remove different types of pollutants in the flue gas, as long as at least two material removal blocks 21 in each material removal disk 20 remove different types of pollutants in the flue gas. With such an arrangement, by rotating the material removal disk 20 around the axis of rotation, the material removal blocks 21 that remove different types of pollutants in the flue gas can be replaced, so that multiple pollutants can be removed and processed in the same material removal disk 20, which helps to reduce operating costs and improve energy efficiency.

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

[0051] Among them, the cross-sectional shape of the material removal block 21 is the same as the cross-sectional shape of the flue 11, so that the material removal block 21 is adapted to the flue 11, which not only improves the stability of the material removal block 21, but also enables the material removal block 21 to cover a larger area of ​​the flue 11 as much as possible, thereby increasing the contact area between the material removal block 21 and the flue gas, making the contact between the material removal block 21 and the flue gas more uniform, which can improve the uniformity and stability of pollutant removal by the material removal block 21, and thus can improve the pollutant removal efficiency.

[0052] Moreover, the cross-sectional area of ​​the material removal block 21 is the same as that of the flue 11. The flue gas can maintain a relatively stable flow velocity and direction when flowing through the flue 11. The material removal block 21 located in the flue 11 can cover the entire flue 11, reducing eddies and turbulence caused by sudden changes in cross-sectional area. The stable flow state helps to distribute pollutants in the flue gas more evenly to the surface of the material removal block 21, thereby improving the removal efficiency of pollutants and also improving the stability and reliability of the device 100 for removing pollutants in flue gas.

[0053] According to some embodiments of the present invention, Figure 2-Figure 3 As shown, each material removal disk 20 may also include: an outer fixed ring 22 and an inner rotating block 23, the outer fixed 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] Among them, the outer fixing ring 22 is sleeved on the inner rotating block 23, providing stable support and positioning for the inner rotating block 23, and the mounting shaft 30 is penetrated by the inner rotating block 23, and the inner rotating block 23 is rotatably mounted on the mounting shaft 30, ensuring the stable rotation of the inner rotating block 23 on the mounting shaft 30, and avoiding the performance degradation of the inner rotating block 23 due to shaking or offset. And because the structures of the outer fixing ring 22 and the inner rotating block 23 are relatively independent, they can be easily disassembled and replaced, reducing maintenance costs, and making it easy to upgrade or improve the device 100 for removing pollutants from flue gas when necessary.

[0055] The material removal block 21 is detachably mounted on the corresponding inner rotating block 23, for example, the material removal block 21 and the inner rotating block 23 can be connected by snapping, or the material removal block 21 can be embedded in the corresponding inner rotating block 23, but the present invention is not limited thereto, as long as the material removal block 21 is detachably mounted on the corresponding inner rotating block 23. In this way, the replacement of the material removal block 21 is 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 in time and replaced with a new material removal block 21. Since the material removal block 21 can be replaced separately, there is no need to replace the entire material removal disk 20, thereby reducing the maintenance cost of the device 100 for removing pollutants from flue gas.

[0056] According to some embodiments of the present invention, Figure 3 As shown, the inner rotating block 23 is formed with a plurality of installation spaces 24 , which are arranged in sequence along the circumference of the corresponding substance removal disk 20 , and the corresponding substance removal blocks 21 are installed in the installation spaces 24 .

[0057] Among them, the inner rotating block 23 is formed with a plurality of installation spaces 24, for example: the inner rotating block 23 can be formed with two, three, four, five, six or other number of installation spaces 24. However, the present invention is not limited thereto, and the inner rotating block 23 can also be formed with other number of installation spaces 24, as long as the inner rotating block 23 is formed with a plurality of installation spaces 24. This application is explained by taking the inner rotating block 23 having six installation spaces 24 as an example. The corresponding material removal block 21 is installed in the installation space 24, and the installation space 24 can be constructed as a through hole that penetrates the inner rotating block 23 along the thickness direction of the inner rotating block 23. When the material removal block 21 is installed in the installation space 24, the flue gas can flow through the material removal block 21 to achieve the removal effect. A plurality of installation spaces 24 are arranged in sequence along the circumference of the corresponding material removal disk 20, so that a plurality of material removal blocks 21 are installed in the corresponding installation spaces 24 and then arranged in sequence along the circumference of the corresponding material removal disk 20, so that the material removal block 21 in the avoidance hole can be replaced when the inner rotating block 23 rotates, and 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, so that the failed material removal block 21 can be replaced during the operation of the device 100 for removing pollutants in the flue gas without stopping the machine, thereby greatly improving the working efficiency of the device 100 for removing pollutants in the flue gas.

[0058] According to some embodiments of the present invention, Figure 1 As shown, the device 100 for removing pollutants from flue gas may further include: a ladder 40, and an outer fixing ring 22 is fixedly mounted on the ladder 40. For example, the outer fixing ring 22 and the ladder 40 may be fixedly connected by welding, or the outer fixing ring 22 and the ladder 40 may be fixedly connected by bolts, but the present invention is not limited thereto. The outer fixing ring 22 and the ladder 40 may also be fixedly connected by other means, as long as the outer fixing ring 22 is fixedly mounted on the ladder 40. The outer fixing ring 22 is fixedly mounted on the ladder 40, so that the staff can approach the failed substance removal block 21 through the ladder 40, remove the failed substance removal block 21 from the corresponding installation space 24, and install a new substance removal block 21, so as to ensure that the device 100 for removing pollutants from flue gas can operate continuously and normally, thereby improving the removal efficiency of the device 100 for removing pollutants from flue gas.

[0059] According to some embodiments of the present invention, the device 100 for removing pollutants from flue gas may further include: a dust collector 50 , wherein the flue 11 extends along the height direction of the removal device, and the dust collector 50 is disposed at the lower end of the flue 11 and is connected to the flue 11 .

[0060] Among them, the flue 11 extends along the height direction of the device for removing pollutants from the flue gas 100, which can ensure that the flue gas has enough time to fully react and contact with the material removal block 21 when flowing through the device for removing pollutants from the flue gas 100. The dust collector 50 is arranged 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 and fall into the dust collector 50 at the lower end of the flue 11, which can effectively collect and process the dust in the flue gas to avoid pollution to the environment.

[0061] According to some embodiments of the present invention, the device for removing pollutants from flue gas 100 may further include: a plurality of soot blowers, which are arranged in sequence along the height direction of the device for removing pollutants from flue gas 100 and fixed to the smoke tower 10, and the plurality of soot blowers are located in the flue 11.

[0062] Among them, the soot blower can be used to remove the 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 in sequence along the height direction of the device for removing pollutants from the flue gas 100 and are fixed to the smoke tower 10. Multiple soot blowers are located in the flue 11, and can remove the accumulated ash from the flue 11 and the material removal block 21 in the flue 11, thereby reducing the risk of obstruction to the flow of flue gas caused by accumulated ash, helping to optimize the flow of flue gas in the flue 11, reducing the residence time and eddy current phenomenon of the flue gas in the flue 11, thereby improving the contact uniformity between the flue gas and the material removal block 21, and further improving the removal efficiency of the pollutant removal device.

[0063] According to some embodiments of the present invention, the device 100 for removing pollutants from flue gas may further include: a dust filter, which is located on the upstream side of the plurality of material removal disks 20 along the gas flow direction in the flue 11 .

[0064] Among them, the main function of the dust filter is to remove large particles of dust in the flue gas. Through the filtering effect of the dust filter, the amount of dust entering the material removal block 21 can be significantly reduced, thereby reducing the burden of 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 on the upstream side of the multiple material removal disks 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 disk 20, and then can improve the removal efficiency of the device 100 for removing pollutants in the flue gas.

[0065] Further, as an example of the present application, the device 100 for removing pollutants from flue gas of the present application may be provided with four material removal disks 20. Four avoidance through holes are formed on the side walls of the smoke tower 10 along the height direction of the smoke tower 10. The four material removal disks 20 are arranged one-to-one corresponding to the four avoidance through holes. Each material removal disk 20 may have multiple material removal blocks 21. For example, each material removal disk 20 may have six material removal blocks 21. The six material removal blocks 21 are sequentially installed 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 disk 20 is arranged 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 disk 20 can be driven by a motor to rotate, so that the corresponding material removal block 21 can be rotated out of the flue 11, and a new corresponding material removal block 21 can be rotated into the flue 11 for removal.

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

[0067] The material removal block 21 in the material removal disk 20 of the first layer can be a dust filter. The dust filter can greatly reduce the amount of dust in the flue gas by performing preliminary dust removal treatment on the flue gas, and a pulse soot blower can be arranged at the position corresponding to the material removal disk 20 of the first layer in the smoke tower 10. The pulse soot blower has a strong soot blowing ability and can effectively blow away a large volume of dust and other substances. The pulse soot blower blows soot on the dust filter of the material removal disk 20 of the first layer, and the dust filtered by the dust filter falls into the dust collector 50 after soot blowing.

[0068] The substance removal block 21 in the substance removal disk 20 of the second layer may be a desulfurizing agent for absorbing sulfur-containing substances in the flue gas.

[0069] The substance removal block 21 in the substance removal disk 20 of the third layer may be a three-way catalyst for adsorbing or catalyzing substances such as NOx, CHx, and CO in the flue gas.

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

[0071] Air soot blowers can be provided at the positions corresponding to the second, third and fourth material removal plates 20 in the smoke tower 10 to blow away dust and other substances on the surfaces of the material removal blocks 21 of the second, third and fourth layers, and the blown dust and other substances fall into the dust collector 50.

[0072] However, the present invention is not limited to this. There may be a larger number of material removal disks 20. The number of material removal disks 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 disk 20 can also be reasonably set according to the expiration time of the corresponding material removal block 21.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

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

Claims

1. A device for removing pollutants from flue gas, characterized in that: include: A smoke tower, wherein the smoke tower defines a smoke duct, the smoke tower is formed with an air inlet and an air outlet, and the smoke duct communicates with the air inlet and the air outlet; A plurality of material removal discs are provided, and the plurality of material removal discs are used to remove pollutants in flue gas. The plurality of material removal discs are arranged in sequence along the extension direction of the flue, and at least a portion of each of the material removal discs is located in the flue, and at least two of the material removal discs remove different types of pollutants in flue gas.

2. The device for removing pollutants from flue gas according to claim 1, characterized in that: The side wall of the smoke tower is formed with a plurality of avoidance holes, which are arranged in sequence along the extension direction of the smoke duct, and a plurality of material removal disks are respectively penetrated through the plurality of avoidance holes, at least one material removal disk rotates around a rotation axis, and the rotation axis is parallel to the extension direction of the smoke duct.

3. The device for removing pollutants from flue gas according to claim 2, characterized in that: The plurality of material removal disks and the plurality of avoidance through holes correspond one to one.

4. The device for removing pollutants from flue gas according to claim 2, characterized in that: Also includes: A mounting shaft is provided, wherein the mounting shaft passes through the plurality of material removal disks, the plurality of material removal disks 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 and the central axis of each of the material removal disks are collinear.

5. The device for removing pollutants from flue gas according to claim 4, characterized in that: Each of the material removal disks comprises: a plurality of material removal blocks, and the plurality of material removal blocks are arranged in sequence along the circumference of the corresponding material removal disk.

6. The device for removing pollutants from flue gas according to claim 5, characterized in that: At least two of the substance removal blocks in each substance removal disk 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 of the material removal disks further comprises: an outer fixed ring and an inner rotating block, wherein the outer fixed ring is sleeved on the inner rotating block, the mounting shaft passes through the inner rotating block, the inner rotating block is rotatably mounted on the mounting shaft, and the material 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 a plurality of installation spaces, which are arranged in sequence along the circumference of the corresponding substance removal disk, and the corresponding substance removal blocks are installed in the installation spaces.

10. The device for removing pollutants from flue gas according to claim 8, characterized in that: Also includes: The escalator is provided with the outer fixing ring fixedly disposed on the escalator.

11. The device for removing pollutants from flue gas according to any one of claims 1 to 10, characterized in that: Also includes: A dust collector, the flue extends in the height direction of the device for removing pollutants in the flue gas, and the dust collector is arranged at the lower end of the flue and communicated with the flue.

12. The device for removing pollutants from flue gas according to claim 11, characterized in that: Also includes: A plurality of soot blowers are arranged in sequence along the height direction of the device for removing pollutants from the flue gas and fixed to the smoke tower, and the plurality of soot blowers are located in the flue.

13. The device for removing pollutants from flue gas according to any one of claims 1 to 10, characterized in that: Also includes: A dust filter is located on the upstream side of the plurality of material removal disks along the gas flow direction in the flue.

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