Denitration catalyst on-line ash removal device

Abstract

The utility model provides a denitration catalyst on-line deashing device which comprises a soot blowing pipeline and a deashing pipeline, the soot blowing pipeline comprises a soot blowing main pipe, two sides of the soot blowing main pipe are communicated with a plurality of soot blowing branch pipes, the bottom of each soot blowing branch pipe is provided with a plurality of nozzles, the deashing pipeline comprises a deashing main pipe, and the nozzles are communicated with the deashing main pipe. The two sides of the ash cleaning main pipe are communicated with a plurality of ash cleaning branch pipes, a plurality of ash suction ports are formed in the bottoms of the ash cleaning branch pipes, the ash blowing pipeline is located above the ash cleaning pipeline, an air blower is arranged at the tail end of the ash blowing pipeline, an induced draft fan is arranged at the tail end of the ash cleaning pipeline, and the ash blowing pipeline and the ash cleaning pipeline are sleeved with a plurality of fixing rings. A connecting piece is fixed on the outer wall of the fixing ring, and the tail end of the connecting piece is connected with a cylinder piston end. According to the utility model, ash removal is realized through the ash blowing pipeline and the ash removal pipeline in the running state of equipment, so that the ash removal capacity is improved.

Description

Technical Field

[0001] This utility model relates to the field of flue gas purification and treatment, and in particular to an online ash removal device for denitrification catalyst. Background Technology

[0002] Currently, industrial production uses denitrification catalysts (honeycomb catalysts) to remove nitrogen oxides (NOx). x However, after a certain period of operation, the surface of the denitrification catalyst will accumulate ash to varying degrees. Severe ash accumulation can clog the honeycomb-like pores of the denitrification catalyst, causing a decrease in denitrification efficiency and resulting in non-compliance with nitrogen oxide emissions at the outlet, necessitating ash removal. Currently, ash removal is mostly carried out when the equipment is shut down; even during operation, a large amount of ash remains, leading to a large operating pressure differential and impacting overall efficiency. Summary of the Invention

[0003] To address the above problems, this utility model provides an online ash removal device for denitrification catalysts.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an online soot removal device for denitrification catalyst, comprising a soot blowing pipe and a soot removal pipe, wherein the soot blowing pipe includes a main soot blowing pipe, and multiple soot blowing branch pipes are connected to both sides of the main soot blowing pipe, and a number of nozzles are provided at the bottom of the soot blowing branch pipes; the soot removal pipe includes a main soot removal pipe, and multiple soot removal branch pipes are connected to both sides of the main soot removal pipe, and a number of ash suction ports are provided at the bottom of the soot removal branch pipes; the soot blowing pipe is located above the soot removal pipe; a blower is provided at the tail end of the soot blowing pipe; an induced draft fan is provided at the tail end of the soot blowing pipe and the soot removal pipe; a number of fixing rings are fitted around the soot blowing pipe and the soot removal pipe; a connecting piece is fixed to the outer wall of the fixing ring; and the tail end of the connecting piece is connected to the piston end of a cylinder.

[0005] Preferably, the soot blowing branch pipe and the soot cleaning branch pipe are arranged in a cross pattern, and both the soot blowing pipe and the soot cleaning pipe are placed horizontally and are parallel to each other.

[0006] Preferably, the fixing ring includes at least two rings and at least two connecting plates. The two rings are respectively fitted onto the soot blowing main pipe and the soot cleaning main pipe. The inner diameter of the two rings is equal to the outer diameter of the soot blowing main pipe and the soot cleaning main pipe, respectively. The connecting plates connect the two rings.

[0007] Preferably, the connector is square, the inner wall of the connector is connected to the outer wall of the fixing ring, and the connector is placed horizontally.

[0008] Preferably, both the blower and the induced draft fan are fixed on the fan support, and the bottom of the fan support is provided with several casters, and the casters are provided with a track, which is U-shaped.

[0009] Preferably, the cylinder is fixed on a cylinder bracket.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model uses a blowing pipe for blowing dust and a cleaning pipe for suction. The reciprocating motion is achieved by the movement of a cylinder. Utilizing the reciprocating power, the entire cleaning surface is covered during the reciprocating motion, and the cleaning pipe moves synchronously with it, ensuring that the blown-up floating dust can be immediately sucked away, avoiding secondary settling. This enables dust removal while the equipment is running, improving the dust removal capacity. The reciprocating motion ensures that the cleaning pipe and the blowing path are completely aligned, avoiding the problem of uneven suction caused by distance differences in fixed dust suction ports. The casters and rails facilitate the blower and induced draft fan to follow the blowing and cleaning pipes in reciprocating motion, preventing the pipes from falling off due to the reciprocating motion and affecting the dust removal process. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the online ash removal device for the denitrification catalyst of this utility model.

[0012] Figure 2 This is a front view of the online cleaning device for denitrification catalyst of this utility model.

[0013] Figure 3 This is a bottom view of the pipeline of the online ash removal device for the denitrification catalyst of this utility model.

[0014] Figure 4 This is an AA cross-sectional view of the online denitrification catalyst cleaning device of this utility model.

[0015] Figure 5 This is a schematic diagram of the fixed ring structure of the online cleaning device for denitrification catalyst of this utility model.

[0016] Attached Figure Descriptions: 1. Soot blowing pipe, 11. Soot blowing branch pipe, 12. Nozzle, 13. Soot blowing main pipe, 2. Soot cleaning pipe, 21. Soot cleaning branch pipe, 22. Soot suction port, 23. Soot cleaning main pipe, 3. Fixing ring, 31. Circular ring, 32. Connecting plate, 4. Connecting piece, 5. Cylinder, 6. Blower, 7. Exhaust fan, 8. Fan bracket, 81. Caster wheel, 82. Rail, 9. Cylinder bracket. Detailed Implementation

[0017] To provide a better understanding of the purpose, structure, features, and functions of this utility model, detailed descriptions are provided below with reference to specific embodiments.

[0018] Please refer to the reference. Figure 1 , Figure 2 , Figure 3 and Figure 4An embodiment of the present invention provides an online soot removal device for a denitrification catalyst, comprising a soot blowing pipe 1 and a soot removal pipe 2. The soot blowing pipe 1 includes a main soot blowing pipe 13, with multiple soot blowing branch pipes 11 connected to both sides of the main soot blowing pipe 13. The bottom of each soot blowing branch pipe 11 is provided with a number of nozzles 12. The soot removal pipe 2 includes a main soot removal pipe 23, with multiple soot removal branch pipes 21 connected to both sides of the main soot removal pipe 23. The bottom of each soot removal branch pipe 21 is provided with a number of suction ports 22. The soot blowing pipe 1 is located above the soot removal pipe 2. A blower 6 is provided at the tail end of the soot blowing pipe 1, and an induced draft fan 7 is provided at the tail end of the soot blowing pipe 1 and the soot removal pipe 2. A number of fixing rings 3 are fitted onto the soot blowing pipe 1 and the soot removal pipe 2. A connecting piece 4 is fixed to the outer wall of the fixing ring 3, and the tail end of the connecting piece 4 is connected to the piston end of a cylinder 5.

[0019] Soot blowing pipe 1 is used for soot blowing, and soot cleaning pipe 2 is used for soot suction. The cylinder is used to realize the reciprocating motion of soot blowing pipe 1 and soot cleaning pipe 2. Utilizing the reciprocating power, the entire soot cleaning surface is covered during the reciprocating process. Soot cleaning pipe 2 moves synchronously to ensure that the blown floating ash can be sucked away immediately to avoid secondary settling. This enables soot cleaning while the equipment is running, improving the soot cleaning capacity. The reciprocating motion optimizes the ash flow direction and reduces escape, enabling soot cleaning while the equipment is running, thus improving the soot cleaning capacity.

[0020] In one embodiment, such as Figure 2 and Figure 3 As shown, the soot blowing branch pipe 11 and the soot cleaning branch pipe 21 are arranged in a cross pattern to facilitate the intake and dispersal of soot. Both the soot blowing pipe 1 and the soot cleaning pipe 2 are placed horizontally and are parallel to each other.

[0021] In one embodiment, such as Figure 4 As shown in the figure, the fixing ring 3 includes at least two rings 31 and at least two connecting plates 32. The two rings 31 are respectively sleeved on the soot blowing pipe 13 and the soot cleaning pipe 23. The inner diameter of the two rings 31 is equal to the outer diameter of the soot blowing pipe 13 and the soot cleaning pipe 23, respectively. The connecting plates 32 connect the two rings 31. The fixing ring 3 is used to fix the soot blowing pipe 1 and the soot cleaning pipe 2, so as to facilitate the synchronous movement of the soot blowing pipe 1 and the soot cleaning pipe 2.

[0022] In one embodiment, such as Figure 3 and Figure 4 As shown, the connector 4 is square, and the inner wall of the connector 4 is connected to the outer wall of the fixing ring 3. The connector 4 is placed horizontally and connects the fixing ring 3, which facilitates the synchronous movement of the soot blowing pipe 1 and the soot cleaning pipe 2.

[0023] In one embodiment, such as Figure 1 and Figure 2As shown, the blower 6 and the induced draft fan 7 are both fixed on the fan bracket 8. The bottom of the fan bracket 8 is provided with several casters 81, and the casters 81 are provided with a track 82. The track 82 is U-shaped. The casters 81 and the track 82 facilitate the blower 6 and the induced draft fan 7 to move back and forth together with the soot blowing pipe 1 and the soot cleaning pipe 2, and prevent the pipes from falling off due to the back and forth movement and affecting the soot cleaning.

[0024] In one embodiment, such as Figure 1 and Figure 2 As shown, the cylinder 5 is fixed on the cylinder bracket 9.

[0025] Usage: Combine Figures 1-5 As shown, blower 6 blows ash through blowing pipe 1, and induced draft fan 7 sucks ash through cleaning pipe 2. Fixing ring 3 fixes the positions of blowing pipe 1 and cleaning pipe 2. Connector 4 is fixedly connected to fixing ring 3. Cylinder 5 moves to drive connector 4 to move back and forth. Blowing pipe 1 and cleaning pipe 2 move back and forth together with connector 4. Using the back and forth power, they cover the entire cleaning surface during the back and forth process. Cleaning pipe 2 moves synchronously to ensure that the blown floating ash can be sucked away immediately to avoid secondary settling.

[0026] This utility model has been described by the above-described embodiments; however, these embodiments are merely examples for implementing this utility model. It must be noted that the disclosed embodiments do not limit the scope of this utility model. Conversely, any modifications and refinements made without departing from the spirit and scope of this utility model are within the scope of patent protection of this utility model.

Claims

1. An online dust removal device for denitrification catalysts, characterized in that: The system includes a soot blowing pipe (1) and a soot cleaning pipe (2). The soot blowing pipe (1) includes a soot blowing main pipe (13), and multiple soot blowing branch pipes (11) are connected on both sides of the soot blowing main pipe (13). Several nozzles (12) are provided at the bottom of the soot blowing branch pipes (11). The soot cleaning pipe (2) includes a soot cleaning main pipe (23), and multiple soot cleaning branch pipes (21) are connected on both sides of the soot cleaning main pipe (23). Several suction ports (22) are provided at the bottom of the soot cleaning branch pipes (21). The soot blowing pipe (1) is located above the soot cleaning pipe (2). A blower (6) is provided at the tail end of the soot blowing pipe (1). An induced draft fan (7) is provided at the tail end of the soot blowing pipe (1) and the soot cleaning pipe (2). Several fixing rings (3) are fitted on the soot blowing pipe (1) and the soot cleaning pipe (2). A connecting piece (4) is fixed to the outer wall of the fixing ring (3). The tail end of the connecting piece (4) is connected to the piston end of the cylinder (5).

2. The online denitrification catalyst cleaning device as described in claim 1, characterized in that: The soot blowing branch pipe (11) and the soot cleaning branch pipe (21) are arranged in a cross pattern. The soot blowing pipe (1) and the soot cleaning pipe (2) are both placed horizontally and are parallel to each other.

3. The online denitrification catalyst cleaning device as described in claim 1, characterized in that: The fixing ring (3) includes at least two rings (31) and at least two connecting plates (32). The two rings (31) are respectively fitted on the soot blowing pipe (13) and the soot cleaning pipe (23). The inner diameter of the two rings (31) is equal to the outer diameter of the soot blowing pipe (13) and the soot cleaning pipe (23). The connecting plate (32) connects the two rings (31).

4. The online denitrification catalyst cleaning device as described in claim 1, characterized in that: The connector (4) is square, and the inner wall of the connector (4) is connected to the outer wall of the fixing ring (3). The connector (4) is placed horizontally.

5. The online denitrification catalyst cleaning device as described in claim 1, characterized in that: The blower (6) and the induced draft fan (7) are both fixed on the fan bracket (8). The bottom of the fan bracket (8) is provided with several casters (81), and the casters (81) are provided with a track (82), which is U-shaped.

6. The online denitrification catalyst cleaning device as described in claim 1, characterized in that: The cylinder (5) is fixed on the cylinder bracket (9).

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