Flue gas denitration equipment
By adopting a combined structure of connecting pipes and filter plates in the flue gas denitrification equipment, preliminary filtration of dust particles and cleaning of the filter plates are achieved. Combined with the replacement and cleaning of activated carbon plates, the problems of equipment blockage and inconvenient cleaning are solved, improving work efficiency and equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-04-07
AI Technical Summary
Existing flue gas denitrification equipment has a single denitrification function and is prone to clogging by dust particles, and the internal dust particles are inconvenient to clean.
The system employs a combination structure of connecting pipes, mounting box, limiting block, guide rod, threaded rod, slider and filter plate to achieve filter plate position adjustment and cleaning. The design of activated carbon plate and trapezoidal block facilitates the replacement and cleaning of activated carbon plate.
It effectively prevents dust particles from clogging the equipment, improves work efficiency, and extends the service life of the equipment.
Smart Images

Figure CN224086316U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of denitrification equipment technology, and in particular to a flue gas denitrification equipment. Background Technology
[0002] Flue gas is one of the main emissions from thermal power plants. It is produced by the combustion of combustibles in burners (i.e., boilers). Since flue gas usually contains a large amount of nitrogen oxides (NOx) such as NO, if these nitrogen oxides are directly emitted into the atmosphere, they will cause highly corrosive acid rain. Therefore, flue gas must undergo denitrification (i.e., denitrification) treatment before being emitted.
[0003] In the current technology, most denitrification of flue gas is carried out using chemical or physical methods. However, some equipment has a relatively simple denitrification function. Regardless of whether chemical or physical methods are used for denitrification, dust particles in the flue gas can cause blockages when emitted. In addition, some denitrification equipment is difficult to clean the dust particles trapped inside, which needs to be addressed. Utility Model Content
[0004] The purpose of this utility model is to solve the problems existing in the prior art: most current denitrification of flue gas often uses chemical or physical methods, but some equipment has a relatively simple denitrification function. Moreover, regardless of whether chemical or physical methods are used for denitrification, dust particles in the flue gas will affect and cause blockages when emitted. At the same time, some denitrification equipment has the problem of inconvenient cleaning of dust particles trapped inside.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a connecting pipe; a mounting box, disposed on one end surface of the connecting pipe; and further comprising:
[0006] Two limiting blocks are formed on the symmetrical surface of the mounting box. A guide rod is fixedly installed on the inner wall of one of the limiting blocks, and a discharge pipe is movably sleeved on the outer surface of the guide rod.
[0007] A threaded rod is movably embedded inside another limiting block, and a slider is threaded onto the outer surface of the threaded rod.
[0008] Preferably, the two sliders are connected by a movable frame, and filter plates are provided symmetrically on the inner wall of the movable frame.
[0009] The technical effect of adopting the above-mentioned further solution is that when the slider moves, it drives the moving frame to move inside the mounting box, thereby adjusting the position of the filter plate on the inner wall.
[0010] Preferably, a transmission pipe is provided on one side surface of the mounting box, and a processing box is provided at one end of the transmission pipe.
[0011] The technical effect of adopting the above-mentioned further solution is that the flue gas initially treated inside the installation box is discharged into the interior of the treatment box through the transmission pipeline.
[0012] Preferably, sizing grooves are provided symmetrically on the inner wall of the processing box, and trapezoidal blocks are slidably embedded inside the two sizing grooves.
[0013] The technical effect of adopting the above-mentioned further solution is that the trapezoidal block is positioned by processing the limiting groove opened in the inner wall of the box.
[0014] Preferably, the surfaces of the two trapezoidal blocks are provided with positioning holes, and the two trapezoidal blocks are connected by a mounting bracket.
[0015] The technical effect of adopting the above-mentioned further solution is that the mounting bracket is fixed by the trapezoidal block, and the positioning holes opened on the surface of the trapezoidal block facilitate the positioning work.
[0016] Preferably, the inner wall of the mounting frame is provided with an activated carbon plate, and springs are provided on the surface of the treatment box at symmetrical locations.
[0017] The technical effect of adopting the above-mentioned further solution is that the activated carbon plate on the inner wall of the mounting frame facilitates the adsorption treatment of NOx in the flue gas, while the treatment box fixes the spring.
[0018] Preferably, one end of each of the two springs is provided with a circular mounting plate, and the surfaces of the two circular mounting plates opposite each other are provided with positioning pins.
[0019] The technical effect of adopting the above-mentioned further solution is that the spring provides a reset function for the circular mounting piece, and when the circular mounting piece moves, it drives the positioning pin to move.
[0020] Preferably, one end of each of the two positioning pins is movably embedded inside the positioning hole, and a discharge pipe is provided on one side surface of the processing box.
[0021] The technical advantage of adopting the above-mentioned further solution is that the trapezoidal block is fixed by embedding the positioning pin inside the positioning hole, which facilitates disassembly and cleaning in the later stage, and the treated flue gas is discharged through the exhaust pipe.
[0022] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0023] 1. In this utility model, the flue gas is installed at the exhaust pipe opening by connecting pipes and using bolts and other parts to exhaust the flue gas into the installation box. The filter plate inside the moving frame performs preliminary filtration of dust particles in the flue gas. When the threaded rod is rotated, the slider on the outer surface moves laterally along the guide rod to adjust the position of the filter plate inside the moving frame. Since there are two filter plates inside, when one is filtering, the other can be cleaned to prevent dust particles from clogging the filter and improve work efficiency.
[0024] 2. In this utility model, when the circular mounting piece on the surface of the spring is pulled, the positioning pin is disengaged from the inside of the positioning hole, and the trapezoidal block on the surface of the mounting bracket is taken out along the inside of the limiting groove. The activated carbon plate that has been working for a long time is replaced and cleaned. Then, the treated flue gas is discharged through the exhaust pipe, thereby improving the service life. Attached Figure Description
[0025] Figure 1 This utility model provides a top view structural diagram of a flue gas denitrification device;
[0026] Figure 2 This utility model provides a partially unfolded structural diagram of a flue gas denitrification device;
[0027] Figure 3 This utility model proposes a flue gas denitrification device. Figure 1 Enlarged structural diagram at point A in the middle;
[0028] Figure 4 This utility model proposes a flue gas denitrification device. Figure 2 Enlarged structural diagram at point B.
[0029] Legend:
[0030] 1. Connecting pipe; 101. Mounting box; 1011. Limiting block; 1012. Guide rod; 1013. Threaded rod; 1014. Slider; 1015. Moving frame; 1016. Filter plate; 102. Transmission pipe; 103. Processing box; 1031. Spring; 1032. Circular mounting plate; 1033. Positioning pin; 1034. Limiting groove; 104. Discharge pipe; 105. Trapezoidal block; 1051. Positioning hole; 1052. Mounting bracket; 1053. Activated carbon plate. Detailed Implementation
[0031] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0032] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0033] Example 1, as Figures 1 to 4 As shown, this utility model provides a flue gas denitrification device, including: a connecting pipe 1; a mounting box 101, disposed on one end surface of the connecting pipe 1; and further including: two limiting blocks 1011, formed on the symmetrical surfaces of the mounting box 101, wherein a guide rod 1012 is fixedly installed on the inner wall of one of the limiting blocks 1011, and an exhaust pipe 104 is movably sleeved on the outer surface of the guide rod 1012; and a threaded rod 1013, movably embedded inside the other limiting block 1011, and a slider 1014 is threadedly sleeved on the outer surface of the threaded rod 1013.
[0034] In this embodiment, the flue gas is discharged into the installation box 101 by means of bolts and other parts installed at the flue gas duct opening through the connecting pipe 1. The filter plate 1016 inside the moving frame 1015 performs preliminary filtration of dust particles in the flue gas. When the threaded rod 1013 is rotated, the slider 1014 on the outer surface moves laterally along the guide rod 1012, adjusting the position of the filter plate 1016 inside the moving frame 1015. Since there are two filter plates 1016 inside, when one is filtering, the other can be cleaned to prevent dust particles from clogging the filter and improve work efficiency.
[0035] In Example 2, two sliders 1014 are connected by a movable frame 1015. A filter plate 1016 is symmetrically positioned on the inner wall of the movable frame 1015. A transmission pipe 102 is provided on one side surface of the mounting box 101. A processing box 103 is provided at one end of the transmission pipe 102. Limiting grooves 1034 are symmetrically positioned on the inner wall of the processing box 103. Trapezoidal blocks 105 are slidably embedded inside the two limiting grooves 1034. Positioning holes 1051 are provided on the surfaces of the two trapezoidal blocks 105. The blocks 105 are connected by the mounting bracket 1052. The inner wall of the mounting bracket 1052 is provided with activated carbon plate 1053. Springs 1031 are provided on the symmetrical surface of the treatment box 103. A circular mounting piece 1032 is provided at one end of the two springs 1031. A positioning pin 1033 is provided on the opposite surface of the two circular mounting pieces 1032. One end of the two positioning pins 1033 is movably embedded in the interior of the positioning hole 1051. A discharge pipe 104 is provided on one side surface of the treatment box 103.
[0036] In this embodiment, when the circular mounting piece 1032 on the surface of the spring 1031 is pulled, the positioning pin 1033 is disengaged from the interior of the positioning hole 1051, and the trapezoidal block 105 on the surface of the mounting bracket 1052 is removed along the interior of the limiting groove 1034. The activated carbon plate 1053, which has been working for a long time, is replaced and cleaned. Then, the treated flue gas is discharged through the discharge pipe 104, thereby improving the service life.
[0037] Working principle: During use, the flue gas is installed at the exhaust pipe opening via connecting pipe 1 and bolts, allowing the flue gas to be discharged into the mounting box 101. The filter plate 1016 inside the moving frame 1015 performs preliminary filtration of dust particles in the flue gas. When the threaded rod 1013 is rotated, the slider 1014 on the outer surface moves laterally along the guide rod 1012, adjusting the position of the filter plate 1016 inside the moving frame 1015. Since there are two filter plates 1016 inside, when one is filtering, the other can be cleaned to prevent dust particles from clogging the filter and improve work efficiency. In addition, when no flue gas is being discharged, pulling the circular mounting piece 1032 on the surface of the spring 1031 causes the positioning pin 1033 to disengage from the positioning hole 1051. The trapezoidal block 105 on the surface of the mounting bracket 1052 is then removed along the limit groove 1034, allowing the activated carbon plate 1053, which has been in use for a long time, to be replaced and cleaned. Finally, the treated flue gas is discharged through the exhaust pipe 104, thereby extending the service life.
[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A flue gas denitrification device, comprising: A connecting pipe (1); a mounting box (101) disposed on one end surface of the connecting pipe (1); characterized in that it further comprises: Two limiting blocks (1011) are provided on the symmetrical surface of the mounting box (101), and a guide rod (1012) is fixedly installed on the inner wall of one of the limiting blocks (1011), and a discharge pipe (104) is movably sleeved on the outer surface of the guide rod (1012). A threaded rod (1013) is movably embedded inside another limiting block (1011), and a slider (1014) is threadedly fitted on the outer surface of the threaded rod (1013).
2. The flue gas denitrification equipment according to claim 1, characterized in that: The two sliders (1014) are connected by a movable frame (1015), and a filter plate (1016) is provided symmetrically on the inner wall of the movable frame (1015).
3. The flue gas denitrification equipment according to claim 2, characterized in that: A transmission pipe (102) is provided on one side surface of the mounting box (101), and a processing box (103) is provided at one end of the transmission pipe (102).
4. The flue gas denitrification equipment according to claim 3, characterized in that: The processing box (103) has symmetrically provided limiting grooves (1034) on its inner wall, and trapezoidal blocks (105) are slidably embedded in the two limiting grooves (1034).
5. The flue gas denitrification equipment according to claim 4, characterized in that: The surfaces of the two trapezoidal blocks (105) are provided with positioning holes (1051), and the two trapezoidal blocks (105) are connected by a mounting bracket (1052).
6. The flue gas denitrification device according to claim 5, characterized in that: The inner wall of the mounting frame (1052) is provided with an activated carbon plate (1053), and springs (1031) are provided on the surface of the treatment box (103) at symmetrical locations.
7. The flue gas denitrification device according to claim 6, characterized in that: One end of each of the two springs (1031) is provided with a circular mounting plate (1032), and a positioning pin (1033) is provided on the surface of the two circular mounting plates (1032) facing each other.
8. The flue gas denitrification device according to claim 7, characterized in that: One end of each of the two positioning pins (1033) is movably embedded inside the positioning hole (1051), and a discharge pipe (104) is provided on one side surface of the processing box (103).