SCR (Selective Catalytic Reduction) denitration catalyst cleaning device

Abstract

The utility model relates to the technical field of cleaning equipment, and provides an SCR (Selective Catalytic Reduction) denitration catalyst cleaning device which is characterized in that a plurality of ultrasonic transducer groups are arranged on the outer side wall of a cleaning tank, and all ultrasonic transducers of the same ultrasonic transducer group are arranged on the same horizontal plane; the ultrasonic generators and the ultrasonic transducer sets are arranged in a one-to-one correspondence mode, and all the ultrasonic transducers of the same ultrasonic transducer set are electrically connected with the same ultrasonic generator. The liquid level sensor is arranged on the inner wall of the cleaning tank; the turbidity sensor is arranged on the inner wall of the cleaning tank; the output end of the liquid level sensor and the output end of the turbidity sensor are both electrically connected with the control module, the controlled end of the ultrasonic generator is electrically connected with the control module, and the controlled ends of the water inlet valve and the blow-down valve are both electrically connected with the control module. By means of the technical scheme, the problem that in the prior art, a denitration catalyst cleaning device cannot adjust the water consumption and the water changing frequency according to the ash volume condition of a denitration catalyst is solved.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, specifically to a cleaning device for SCR denitrification catalyst. Background Technology

[0002] After a period of operation, denitrification catalysts deactivate, leading to reduced denitrification efficiency, increased ammonia slip, and failure to meet emission standards. Based on the principles of resource reuse and cost savings, thermal power plants choose to regenerate catalysts in good mechanical condition to restore their activity. One of the main causes of catalyst deactivation is ash accumulation and blockage in the catalyst channels, preventing flue gas from passing smoothly and hindering the normal denitrification reaction, thus reducing denitrification efficiency. Therefore, a key step in denitrification catalyst regeneration is to use a cleaning device to unclog the ash accumulation in the channels.

[0003] Existing denitrification catalyst cleaning devices are generally not targeted, as they are mass-produced and uniformly cleaned. They cannot adjust the water volume and water change frequency according to the size of the ash on each denitrification catalyst. This results in incomplete cleaning of catalysts with large ash content, leaving ash accumulation in the pores and on the surface, affecting regeneration quality. On the other hand, while catalysts with small ash content are cleaned more thoroughly, they may be over-cleaned, wasting water resources. Utility Model Content

[0004] This invention proposes an SCR denitrification catalyst cleaning device, which solves the problem in related technologies that denitrification catalyst cleaning devices cannot adjust the water consumption and water change frequency according to the size of the ash on each denitrification catalyst.

[0005] The technical solution of this utility model is as follows: an SCR denitrification catalyst cleaning device, the key feature of which includes,

[0006] A cleaning tank, which is equipped with a water inlet valve and a drain valve;

[0007] An ultrasonic transducer is provided on the outer wall of the cleaning tank. Multiple ultrasonic transducer groups are arranged in a vertical direction, and all ultrasonic transducers in the same ultrasonic transducer group are arranged on the same horizontal plane.

[0008] An ultrasonic generator is provided, and the ultrasonic generator is arranged in a one-to-one correspondence with the ultrasonic transducer group. All the ultrasonic transducers in the same ultrasonic transducer group are electrically connected to the same ultrasonic generator.

[0009] A liquid level sensor is disposed on the inner wall of the cleaning tank;

[0010] A turbidity sensor is disposed on the inner wall of the cleaning tank;

[0011] The control module is electrically connected to the output terminals of the liquid level sensor and the turbidity sensor, the controlled terminal of the ultrasonic generator, and the controlled terminals of the inlet valve and the drain valve.

[0012] It also includes,

[0013] A water pump is installed outside the cleaning tank, the outlet end of the water pump is connected to the inlet valve, and the controlled end of the water pump is electrically connected to the control module.

[0014] A sewage pump is installed outside the cleaning tank. The inlet end of the sewage pump is connected to the sewage valve, and the controlled end of the sewage pump is electrically connected to the control module.

[0015] It also includes,

[0016] An air pump is installed outside the cleaning tank, and the controlled end of the air pump is electrically connected to the control module.

[0017] An air duct is provided outside the cleaning tank and connected to the outlet of the air pump.

[0018] An air-blowing branch pipe is installed inside the cleaning tank. The inlet end of the air-blowing branch pipe is connected to the main air-blowing pipe. There are multiple air-blowing branch pipes, all of which are arranged along the length direction of the cleaning tank and along the width direction of the cleaning tank. Each air-blowing branch pipe has an air outlet.

[0019] It also includes a switching valve, the inlet end of which is connected to the main air pipe via the switching valve.

[0020] It also includes a first protective cabinet, which is located on one side of the cleaning tank, and the water pump, the sewage pump and the air pump are all installed inside the first protective cabinet.

[0021] It also includes a second protective cabinet, which is located on one side of the cleaning tank, and the ultrasonic generator and the control module are both installed inside the second protective cabinet.

[0022] It also includes,

[0023] A base, on which the cleaning tank is disposed;

[0024] The wheels are rotatably mounted on the bottom of the base.

[0025] It also includes,

[0026] A positioning frame, which is located above the base and around the periphery of the cleaning tank;

[0027] A support column is located around the cleaning tank, with its upper end connected to the positioning frame and its lower end connected to the base.

[0028] A protective plate is mounted on the support column, and the ultrasonic transducer is located inside the protective plate.

[0029] It also includes a lifting outrigger, the upper end of which is threadedly connected to the base. After the lifting outrigger is rotated, the lower end face of the lifting outrigger is used to move down to below the lowest point of the walking wheel.

[0030] It also includes a reinforcing nut, which is threadedly connected to the lifting outrigger, and the upper end face of the reinforcing nut contacts the lower end face of the base.

[0031] The working principle and beneficial effects of this utility model are as follows: The cleaning tank has an inlet valve and a drain valve; multiple ultrasonic transducer groups are arranged on the outer wall of the cleaning tank, all ultrasonic transducer groups are arranged in the vertical direction, and all ultrasonic transducers in the same ultrasonic transducer group are arranged on the same horizontal plane; an ultrasonic generator is set in a one-to-one correspondence with the ultrasonic transducer group, and all ultrasonic transducers in the same ultrasonic transducer group are electrically connected to the same ultrasonic generator; a liquid level sensor is set on the inner wall of the cleaning tank; a turbidity sensor is set on the inner wall of the cleaning tank; the output terminals of the liquid level sensor and the turbidity sensor are both electrically connected to the control module, the controlled terminal of the ultrasonic generator is electrically connected to the control module, and the controlled terminals of the inlet valve and the drain valve are both electrically connected to the control module.

[0032] The cleaning tank holds the denitrification catalyst to be cleaned. An inlet valve controls the inflow of clean water, while a drain valve discharges wastewater after cleaning. An ultrasonic generator, in conjunction with an ultrasonic transducer, generates ultrasonic waves to clean the denitrification catalyst. A level sensor detects the water level in the cleaning tank, and a turbidity sensor detects the turbidity of the cleaning solution. Initially, both the inlet and drain valves are closed. After the denitrification catalyst is placed in the cleaning tank, the control module first opens the inlet valve, injecting clean water into the tank. As the water level rises, the level sensor transmits the water level information to the control module in real time. When the water level reaches the set value, the control module closes the inlet valve and activates the ultrasonic generator connected to the ultrasonic transducer located below the liquid surface. The ultrasonic generator, in conjunction with its corresponding ultrasonic transducer array, generates ultrasonic waves to clean the denitrification catalyst. After cleaning, the turbidity sensor sends the detected turbidity of the water in the cleaning tank to the control module. If the turbidity meets the discharge requirements, it indicates that the denitrification catalyst has not been cleaned thoroughly. The control module opens the drain valve to drain the liquid. After draining, the drain valve is closed, and the inlet valve is opened to inject clean water back into the cleaning tank for the next cleaning cycle. If the turbidity does not meet the discharge requirements, it indicates that the denitrification catalyst has been cleaned thoroughly. The control module opens the drain valve to drain the liquid. After draining, the drain valve is closed, and the cleaned denitrification catalyst is removed from the cleaning tank. The next denitrification catalyst to be cleaned is then placed in, the inlet valve is opened, and clean water is injected back into the cleaning tank for the next cleaning cycle. This system can adjust the water consumption and water change frequency according to the volume of ash on each denitrification catalyst, effectively avoiding situations where large amounts of ash are not thoroughly cleaned, leaving ash accumulation in the pores and on the surface, affecting regeneration quality; while smaller amounts of ash may be cleaned more thoroughly, but this can lead to over-cleaning and wasted water resources. Attached Figure Description

[0033] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0034] Figure 1 This is a schematic diagram of the connection structure between the ultrasonic transducers in this utility model.

[0035] Figure 2 This is a top view of the present invention.

[0036] Figure 3 This is a schematic diagram of the principle of this utility model.

[0037] Figure 4 This is a schematic diagram of the external structure of this utility model.

[0038] In the diagram: 1. Cleaning tank; 2. Ultrasonic transducer; 3. Ultrasonic generator; 4. Liquid level sensor; 5. Turbidity sensor; 6. Control module; 7. Inlet valve; 8. Drain valve; 9. Water pump; 10. Drain pump; 11. Air pump; 12. Main air blower pipe; 13. Branch air blower pipe; 14. Switch valve; 15. First protective cabinet; 16. Second protective cabinet; 17. Base; 18. Wheels; 19. Positioning frame; 20. Support column; 21. Protective plate; 22. Lifting outrigger; 23. Reinforcing nut. Detailed Implementation

[0039] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0040] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0041] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0043] Example, refer to Figures 1-3This invention provides an SCR denitrification catalyst cleaning device, comprising a cleaning tank 1, ultrasonic transducers 2, ultrasonic generators 3, a liquid level sensor 4, a turbidity sensor 5, and a control module 6. The cleaning tank 1 has an inlet valve 7 and a drain valve 8. Multiple ultrasonic transducer groups are arranged on the outer wall of the cleaning tank 1, all arranged vertically, with all ultrasonic transducers 2 in the same group arranged on the same horizontal plane. The ultrasonic generator 3 is arranged in a one-to-one correspondence with the ultrasonic transducer groups, and all ultrasonic transducers 2 in the same group are electrically connected to the same ultrasonic generator 3. The liquid level sensor 4 is located on the inner wall of the cleaning tank 1. The turbidity sensor 5 is located on the inner wall of the cleaning tank 1. The output terminals of the liquid level sensor 4 and the turbidity sensor 5 are both electrically connected to the control module 6. The controlled terminals of the ultrasonic generator 3 are also electrically connected to the control module 6. The controlled terminals of the inlet valve 7 and the drain valve 8 are also electrically connected to the control module 6.

[0044] In this embodiment, the cleaning tank 1 is used to hold the denitrification catalyst to be cleaned, the inlet valve 7 is used to control the entry of clean water, and the drain valve 8 is used to discharge the wastewater after cleaning. The ultrasonic waves generated by the ultrasonic generator 3 and the ultrasonic transducer 2 can clean the denitrification catalyst. The level sensor 4 is used to detect the water level in the cleaning tank 1. The turbidity sensor 5 is used to detect the turbidity of the cleaning solution in the cleaning tank 1. Figure 1 As shown, taking the example of three ultrasonic transducer groups (upper, middle, and lower) installed on the front and rear outer side walls of the cleaning tank 1, all ultrasonic transducers 2 located on the same layer are electrically connected to the same ultrasonic generator 3.

[0045] Initially, both the inlet valve 7 and the drain valve 8 are closed. After the denitrification catalyst is placed into the cleaning tank 1, the control module 6 first controls the inlet valve 7 to open, injecting clean water into the cleaning tank 1. As the water level rises, the level sensor 4 transmits the water level information to the control module 6 in real time. When the water level reaches the set value, the control module 6 closes the inlet valve 7 and turns on the ultrasonic generator 3 connected to the ultrasonic transducer 2 located below the liquid surface. The ultrasonic generator 3 generates ultrasonic waves through its corresponding ultrasonic transducer group to clean the denitrification catalyst. After cleaning, the turbidity sensor 5 sends the detected turbidity of the water in the cleaning tank 1 to the control module 6. If the turbidity meets the discharge requirements, it indicates that the denitrification catalyst has not been cleaned properly. The control module 6 then opens the drain valve 8 to drain the liquid. After draining, the drain valve 8 is closed, and the inlet valve 7 is opened again to inject clean water into the cleaning tank 1 for the next cleaning cycle. If the turbidity does not meet the emission requirements, it indicates that the denitrification catalyst has been cleaned. Control module 6 opens drain valve 8 to drain the liquid. After drainage, drain valve 8 is closed, and the cleaned denitrification catalyst is removed from cleaning tank 1. The next denitrification catalyst to be cleaned is placed in, and water inlet valve 7 is opened to inject clean water into cleaning tank 1 again for the next cleaning cycle. The system can adjust the water volume and water change frequency according to the volume of ash on each denitrification catalyst. This effectively avoids situations where large amounts of ash are not thoroughly cleaned, leaving ash accumulation in the pores and on the surface, affecting regeneration quality; while smaller amounts of ash may be cleaned more thoroughly, but this can lead to over-cleaning and wasted water resources.

[0046] Furthermore, such as Figure 3 As shown, the system also includes a water pump 9 and a sewage pump 10. The water pump 9 is located outside the cleaning tank 1, with its outlet connected to the inlet valve 7 and its controlled end electrically connected to the control module 6. The sewage pump 10 is also located outside the cleaning tank 1, with its inlet connected to the sewage valve 8 and its controlled end electrically connected to the control module 6. When clean water needs to be injected into the cleaning tank 1, the control module 6 controls the water pump 9 to operate and opens the inlet valve 7, allowing the water pump 9 to quickly and stably inject clean water into the cleaning tank 1 through the inlet valve 7. Once the water level reaches the set value, the control module 6 shuts off the water pump 9 and the inlet valve 7. When wastewater needs to be discharged after cleaning, the control module 6 controls the sewage pump 10 to operate and opens the sewage valve 8, allowing the sewage pump 10 to promptly and effectively pump the wastewater out of the cleaning tank 1 through the sewage valve 8. After drainage is complete, the sewage pump 10 and the sewage valve 8 are shut off. This improves the efficiency and controllability of water intake and sewage discharge.

[0047] Furthermore, such as Figure 3As shown, the system also includes an air pump 11, a main air pipe 12, and branch air pipes 13. The air pump 11 is located outside the cleaning tank 1, and its controlled end is electrically connected to the control module 6. The main air pipe 12 is located outside the cleaning tank 1 and is connected to the outlet of the air pump 11. The branch air pipes 13 are located inside the cleaning tank 1, with their inlets connected to the main air pipe 12. There are multiple branch air pipes 13, all arranged along the length of the cleaning tank 1 and along its width. Each branch air pipe 13 has an air outlet. For example, if the main air pipe 12 is arranged horizontally and all branch air pipes 13 are arranged horizontally, the branch air pipes 13 are arranged vertically. When the air pump 11 is working, it delivers air through the main air pipe 12 to each branch air pipe 13. The air is discharged from the air outlet of the branch air pipe 13, forming bubbles in the cleaning tank 1. As the bubbles rise in the cleaning solution, they create agitation, enhancing the solution's fluidity and improving the cleaning effect on the denitrification catalyst. This bubble agitation allows the cleaning solution to better contact all parts of the catalyst, especially the pores and surfaces, aiding in the removal of accumulated dust. To ensure more uniform bubble distribution, a set of air outlets is provided along the length of the blower pipe 13 at its top and on both sides.

[0048] Furthermore, such as Figure 2 As shown, it also includes a switch valve 14, and the inlet end of the air blower branch pipe 13 is connected to the air blower main pipe 12 via the switch valve 14. By controlling the opening and closing of the switch valve 14, the air flow of the air blower branch pipe 13 can be controlled. The air flow of the air blower branch pipe 13 can be flexibly controlled according to the actual cleaning needs, thereby adjusting the amount and distribution of bubbles, so that denitrification catalysts with different degrees of ash accumulation can achieve the best cleaning effect.

[0049] Furthermore, such as Figure 1 , Figure 2 and Figure 4 As shown, the system also includes a first protective cabinet 15, located on one side of the cleaning tank 1. The water pump 9, sewage pump 10, and air pump 11 are all housed within the first protective cabinet 15. The first protective cabinet 15 provides protection for the water pump 9, sewage pump 10, and air pump 11, preventing them from being affected by external interference and damage. The first protective cabinet 15 also protects electronic components from electromagnetic interference, dust, moisture, and other factors, ensuring the normal operation of the equipment. Furthermore, it facilitates centralized management and maintenance of the equipment.

[0050] Furthermore, such as Figure 2As shown, a second protective cabinet 16 is also included, located on one side of the cleaning tank 1. The ultrasonic generator 3 and control module 6 are both housed within the second protective cabinet 16. The second protective cabinet 16 provides protection for the ultrasonic generator 3 and control module 6, preventing them from being affected by external interference and damage. The second protective cabinet 16 also protects electronic components from electromagnetic interference, dust, moisture, etc., ensuring the normal operation of the equipment. Furthermore, it facilitates centralized management and maintenance of the equipment.

[0051] Furthermore, such as Figure 1 and Figure 4 As shown, it also includes a base 17, casters 18, and a cleaning tank 1 mounted on the base 17; the casters 18 are rotatably mounted on the bottom of the base 17. Casters 18 are provided below the four corners of the base 17, which allows the cleaning device to be easily moved to the desired position, improving the flexibility and mobility of the cleaning device.

[0052] Furthermore, such as Figure 1 and Figure 4 As shown, it also includes a positioning frame 19, a support column 20, and a protective plate 21. The positioning frame 19 is located above the base 17 and around the periphery of the cleaning tank 1. The support column 20 is located around the periphery of the cleaning tank 1, with its upper end connected to the positioning frame 19 and its lower end connected to the base 17. The protective plate 21 is mounted on the support column 20, and the ultrasonic transducer 2 is located inside the protective plate 21. Taking the example of ultrasonic transducers 2 being installed on both the front and rear outer walls of the cleaning tank 1, protective plates 21 are installed at the front and rear of the cleaning tank 1. The positioning frame 19 and the support column 20 serve to fix and support the protective plates 21. The protective plates 21 can protect the ultrasonic transducers 2 from external collisions and damage, and can also reduce the impact of ultrasonic waves on the surrounding environment. To make the overall appearance neater and more aesthetically pleasing, protective plates 21 are also installed on the left and right sides of the cleaning tank 1, and the four protective plates 21 form a sealed shell. The protective plate 21 located on the outside of the ultrasonic transducer 2 is detachably connected to the base 17, and the ultrasonic transducer 2 is detachably connected to the cleaning tank 1. The ultrasonic transducer 2 can be maintained by removing the protective plate 21, which is more convenient.

[0053] Furthermore, such as Figure 1 and Figure 4As shown, the device also includes a lifting leg 22. The upper end of the lifting leg 22 is threadedly connected to the base 17. After the lifting leg 22 is rotated, its lower end face is lowered to below the lowest point of the traveling wheel 18. When it is necessary to fix the cleaning device, the lifting leg 22 is rotated so that its lower end face contacts the ground, lifting the traveling wheel 18 and thus placing the cleaning device stably on the ground. When it is necessary to move the cleaning device, the lifting leg 22 is rotated so that its lower end face moves up to above the lowest point of the traveling wheel 18, allowing the traveling wheel 18 to contact the ground. This improves the stability of the cleaning device during use.

[0054] Furthermore, such as Figure 1 and Figure 4 As shown, it also includes reinforcing nuts 23, which are threadedly connected to the lifting legs 22. The upper end face of the reinforcing nuts 23 contacts the lower end face of the base 17. Each lifting leg 22 is threaded with two reinforcing nuts 23, which can support the base 17, enhance the connection strength between the lifting legs 22 and the base 17, prevent the lifting legs 22 from loosening, and further improve the stability of the cleaning device.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A cleaning device for SCR denitrification catalyst, characterized in that: include, A cleaning tank (1) is provided with a water inlet valve (7) and a drain valve (8). An ultrasonic transducer (2) is provided on the outer wall of the cleaning tank (1). Multiple ultrasonic transducer groups are arranged in the vertical direction, and all ultrasonic transducers (2) in the same ultrasonic transducer group are arranged on the same horizontal plane. An ultrasonic generator (3) is provided in a one-to-one correspondence with the ultrasonic transducer group. All ultrasonic transducers (2) in the same ultrasonic transducer group are electrically connected to the same ultrasonic generator (3). A liquid level sensor (4) is disposed on the inner wall of the cleaning tank (1); Turbidity sensor (5), the turbidity sensor (5) is disposed on the inner wall of the cleaning tank (1); The output terminals of the liquid level sensor (4) and the turbidity sensor (5) are electrically connected to the control module (6), the controlled terminal of the ultrasonic generator (3) is electrically connected to the control module (6), and the controlled terminals of the water inlet valve (7) and the sewage discharge valve (8) are electrically connected to the control module (6).

2. The SCR denitrification catalyst cleaning device according to claim 1, characterized in that: It also includes, Water pump (9), the water pump (9) is located outside the cleaning tank (1), the outlet end of the water pump (9) is connected to the water inlet valve (7), and the controlled end of the water pump (9) is electrically connected to the control module (6); A sewage pump (10) is installed outside the cleaning tank (1). The inlet end of the sewage pump (10) is connected to the sewage valve (8), and the controlled end of the sewage pump (10) is electrically connected to the control module (6).

3. The SCR denitrification catalyst cleaning device according to claim 2, characterized in that: It also includes, An air pump (11) is disposed outside the cleaning tank (1), and the controlled end of the air pump (11) is electrically connected to the control module (6). Air main pipe (12), which is located outside the cleaning tank (1) and connected to the outlet of the air pump (11); An air-blowing branch pipe (13) is installed in the cleaning tank (1). The inlet end of the air-blowing branch pipe (13) is connected to the main air-blowing pipe (12). There are multiple air-blowing branch pipes (13). All the air-blowing branch pipes (13) are arranged along the length direction of the cleaning tank (1). The length direction of the air-blowing branch pipes (13) is arranged along the width direction of the cleaning tank (1). The air-blowing branch pipes (13) have air outlets.

4. The SCR denitrification catalyst cleaning device according to claim 3, characterized in that: It also includes a switch valve (14), the inlet end of which is connected to the main air pipe (12) via the switch valve (14).

5. The SCR denitrification catalyst cleaning device according to claim 3, characterized in that: It also includes a first protective cabinet (15), which is located on one side of the cleaning tank (1), and the water pump (9), the sewage pump (10) and the air pump (11) are all installed inside the first protective cabinet (15).

6. The SCR denitrification catalyst cleaning device according to claim 1, characterized in that: It also includes a second protective cabinet (16), which is located on one side of the cleaning tank (1), and the ultrasonic generator (3) and the control module (6) are both located inside the second protective cabinet (16).

7. The SCR denitrification catalyst cleaning device according to claim 1, characterized in that: It also includes, The base (17) and the cleaning tank (1) are disposed on the base (17); The walking wheel (18) is rotatably mounted at the bottom of the base (17).

8. The SCR denitrification catalyst cleaning device according to claim 7, characterized in that: It also includes, Positioning frame (19), the positioning frame (19) is located above the base (17) and around the cleaning tank (1); Support column (20), the support column (20) is located outside the cleaning tank (1), the upper end of the support column (20) is connected to the positioning frame (19), and the lower end of the support column (20) is connected to the base (17); The protective plate (21) is mounted on the support column (20), and the ultrasonic transducer (2) is located inside the protective plate (21).

9. The SCR denitrification catalyst cleaning device according to claim 8, characterized in that: It also includes a lifting leg (22), the upper end of which is threadedly connected to the base (17). After the lifting leg (22) is rotated, the lower end face of the lifting leg (22) is used to move down to below the lowest point of the walking wheel (18).

10. The SCR denitrification catalyst cleaning device according to claim 9, characterized in that: It also includes a reinforcing nut (23), which is threadedly connected to the lifting leg (22), and the upper end face of the reinforcing nut (23) is in contact with the lower end face of the base (17).

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