Flue gas denitration device

Abstract

The utility model discloses a flue gas denitration device, relates to flue gas denitration technical field, including base, processing mechanism and denitration mechanism, the upper end face of base is fixedly connected with denitration tank, the outer side wall of denitration tank is provided with a plurality of groups of observation window, denitration tank inside is fixedly connected with first partition plate and second partition plate from top to bottom, a mixing bin is formed in the upper end of the first partition plate in the denitration tank, a feeding port is formed in the upper end of the mixing bin, a filtering bin is formed between the first partition plate and the second partition plate in the denitration tank, and a spraying bin is formed in the bottom end of the second partition plate in the denitration tank; the power output end of the servo motor penetrates through the denitration tank and then is fixedly connected with a rotating rod, the upper end of the rotating rod is provided with a treatment mechanism, and the mixing bin, the filtering bin and the spraying bin are internally provided with a denitration mechanism, so that the denitration efficiency is improved through multi-stage treatment (primary denitration and spraying filtering), flue gas is treated through stirring and a reducing agent for the first time; and nitrogen oxides in the flue gas can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas denitration, in particular to a flue gas denitration device. Background Art

[0002] Flue gas denitrification technologies primarily include dry methods (selective catalytic reduction flue gas denitrification and selective non-catalytic reduction denitrification) and wet methods. Compared to wet flue gas denitrification, dry flue gas denitrification has the following advantages: lower capital investment, simple equipment and process, higher NOx removal efficiency, no wastewater or waste disposal, and less risk of secondary pollution.

[0003] The above utility model has the following problems:

[0004] During the long denitrification process, a large amount of smoke and dust accumulates on the filter plates, causing a large amount of particulate matter to clog the filter screen, thereby affecting the denitrification effect. During the denitrification process of flue gas treatment, water and other substances are mixed with the flue gas to neutralize the denitrification process. The contact time between the flue gas and water is short, resulting in poor flue gas treatment effect and failure to meet emission requirements.

[0005] Therefore, those skilled in the art provide a flue gas denitrification device to solve the problems raised in the above background technology. Utility Model Content

[0006] The purpose of the present utility model is to provide a flue gas denitrification device to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A flue gas denitrification device comprises a base, a processing mechanism and a denitrification mechanism, wherein the upper end face of the base is fixedly connected to a denitrification tank, a plurality of observation windows are provided on the outer side wall of the denitrification tank, a first partition and a second partition are fixedly connected from top to bottom inside the denitrification tank, a mixing chamber is provided at the upper end of the first partition inside the denitrification tank, a feed port is provided at the upper end of the mixing chamber, a filtering chamber is provided between the first partition and the second partition inside the denitrification tank, a spraying chamber is provided at the bottom end of the second partition inside the denitrification tank, a servo motor is fixedly connected to the top end of the base, a power output end of the servo motor passes through the denitrification tank and is fixedly connected to a rotating rod, a processing mechanism is provided on the upper end of the rotating rod, and a denitrification mechanism is provided in the mixing chamber, the filtering chamber and the spraying chamber.

[0009] As a further solution of the present invention: the outer wall of the top end of the rotating rod is fixedly connected to multiple groups of stirring rods, the outer wall of the middle position of the rotating rod is fixedly connected to two groups of cleaning rollers, the outer wall of the bottom end of the rotating rod is fixedly connected to a water retention plate, and the bottom end of the water retention plate is fixedly connected to multiple groups of nozzles.

[0010] As a further solution of the present invention: a protective box is fixedly connected to the side wall of one end of the denitrification tank, a pump body is fixedly connected inside the protective box, the input end of the pump body is connected to the mixing bin, the output end of the pump body is fixedly connected to a water pipe, and the other end of the water pipe is connected to the water storage plate through a sealed bearing.

[0011] As a further solution of the present invention: a V-shaped filter plate is fixedly connected to the bottom end of the filter chamber, a second air pipe is provided between the spray chamber and the mixing chamber, a first air pipe is provided between the filter chamber and the spray chamber, and the upper ends of the first air pipe and the second air pipe are both equipped with one-way valves.

[0012] As a further solution of the present invention: the inner walls at both ends of the filter bin are fixedly connected with mounting seats, the bottom ends of the mounting seats are fixedly connected with extrusion springs, the upper ends of the extrusion springs are fixedly connected with limit plates, and filter screens are movably connected between the two sets of limit plates and the mounting seats, and the filter screens are in contact with the cleaning rollers.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] Because it is equipped with a denitrification mechanism, the denitrification efficiency is improved through multi-stage treatment (primary denitrification and spray filtration). The flue gas is treated with stirring and reducing agents for the first time, which can effectively reduce nitrogen oxides in the flue gas. The subsequent spraying and filtration steps further remove residual pollutants, thereby improving the overall denitrification effect. The spray chamber and V-shaped filter plate can effectively remove particulate matter and impurities in the flue gas, and can also protect subsequent filtering devices and reduce maintenance frequency. The filter is equipped with a cleaning roller, which can automatically clean accumulated dust and impurities. The filter makes maintenance and replacement relatively simple and can be easily removed for cleaning or replacement, reducing maintenance costs and time. Through the comprehensive treatment method of fully mixing the liquid with the flue gas, spraying, and filtering, it not only has a good removal effect on nitrogen oxides, but also effectively treats particulate matter and impurities in the flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a flue gas denitrification device.

[0016] Figure 2 It is a schematic diagram of the front cross-sectional structure of a flue gas denitrification device.

[0017] Figure 3 This is a structural schematic diagram of a transfer rod in a flue gas denitrification device.

[0018] Figure 4 This is a schematic diagram of the enlarged structure of point A in a flue gas denitrification device.

[0019] In the figure: 1. Base; 2. Denitrification tank; 3. Observation window; 4. First partition; 5. Second partition; 6. Mixing chamber; 7. Filter chamber; 8. Spray chamber; 9. Servo motor; 10. Rotating rod; 11. Stirring rod; 12. Cleaning roller; 13. Water retention plate; 14. Nozzle; 15. Sealed bearing; 16. Protective box; 17. Pump body; 18. Water pipe; 19. Feed port; 20. V-shaped filter plate; 21. First air pipe; 22. Second air pipe; 23. Extrusion spring; 24. Limiting plate; 25. Filter screen; 26. Mounting base. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example 1

[0022] Reference Figure 1-4 This embodiment provides a flue gas denitrification device, including a base 1, a denitrification tank 2, an observation window 3, a first partition 4, a second partition 5, a mixing chamber 6, a filter chamber 7, a spray chamber 8, a servo motor 9, a rotating rod 10, a stirring rod 11, a cleaning roller 12, a water retaining plate 13, a nozzle 14, a sealing bearing 15, a protective box 16, a pump body 17, a water pipe 18, a feed port 19, a V-shaped filter plate 20, a first air pipe 21, a second air pipe 22, an extrusion spring 23, a limit plate 24, a filter screen 25, and a mounting seat 26; the upper end surface of the base 1 is fixedly connected to the denitrification tank 2, and the outer wall of the denitrification tank 2 is provided with multiple An observation window 3 is provided. A first partition 4 and a second partition 5 are fixedly connected to the inside of the denitrification tank 2 from top to bottom. A mixing chamber 6 is provided on the upper end of the first partition 4 inside the denitrification tank 2. A feed port 19 is provided on the upper end of the mixing chamber 6. A filtering chamber 7 is provided between the first partition 4 and the second partition 5 inside the denitrification tank 2. A spraying chamber 8 is provided at the bottom end of the second partition 5 inside the denitrification tank 2. A servo motor 9 is fixedly connected to the top of the base 1. The power output end of the servo motor 9 passes through the denitrification tank 2 and is fixedly connected to a rotating rod 10. A processing mechanism is provided on the upper end of the rotating rod 10. Denitrification mechanisms are provided in the mixing chamber 6, the filtering chamber 7 and the spraying chamber 8.

[0023] Example 2

[0024] Reference Figure 1 、 23. This embodiment is based on the previous embodiment and differs from the previous embodiment in that a plurality of stirring rods 11 are fixedly connected to the outer wall of the top end of the rotating rod 10, two sets of cleaning rollers 12 are fixedly connected to the outer wall at the middle position of the rotating rod 10, a water retaining plate 13 is fixedly connected to the outer wall of the bottom end of the rotating rod 10, and a plurality of nozzles 14 are fixedly connected to the bottom end of the water retaining plate 13;

[0025] Start the servo motor 9, the servo motor 9 drives the rotating rod 10 to rotate, and the rotating rod 10 can drive the stirring rod 11, the cleaning roller 12, and the water storage plate 13 to rotate, waiting for subsequent work.

[0026] Example 3

[0027] Reference Figure 1 、 2 4. This embodiment is based on the previous embodiment, and differs from the previous embodiment in that a protective box 16 is fixedly connected to the side wall of the denitrification tank 2 at one end, a pump body 17 is fixedly connected inside the protective box 16, the input end of the pump body 17 is connected to the mixing chamber 6, the output end of the pump body 17 is fixedly connected to a water pipe 18, and the other end of the water pipe 18 is connected to the water retaining plate 13 through a sealed bearing 15, a V-shaped filter plate 20 is fixedly connected to the bottom end of the filter chamber 7, and a spray chamber 8 is provided between the mixing chamber 6 and the spray chamber 8. A second air supply pipe 22 is provided between the filter bin 7 and the spray bin 8. A first air supply pipe 21 is provided at the upper end of each of the first and second air supply pipes 21 and 22. A one-way valve is provided. The inner walls of the left and right ends of the filter bin 7 are fixedly connected with mounting seats 26. The bottom ends of the mounting seats 26 are fixedly connected with extrusion springs 23. The upper ends of the extrusion springs 23 are fixedly connected with limit plates 24. A filter screen 25 is movably connected between the two sets of limit plates 24 and the mounting seats 26. The filter screens 25 are in contact with the cleaning rollers 12.

[0028] First, water, reducing agent and flue gas are fed into the mixing chamber 6 of the denitrification tank 2 through the feed port 19. The flue gas is denitrated once by the water and reducing agent through continuous stirring by the stirring rod 11.

[0029] The pump body 17 is started, and the pump body 17 draws the liquid in the mixing chamber 6 into the water retaining plate 13 through the water pipe 18, and draws the smoke into the spray chamber 8 through the second air pipe 22. The nozzle 14 is started, and the nozzle 14 sprays the liquid on the smoke again. The water retaining plate 13 performs a circular motion synchronously with the rotation of the rotating rod 10. Due to the setting of the sealed bearing 15, the water pipe 18 is not affected. As the liquid sprays the smoke downward, the particles or impurities contained in the smoke can be filtered twice through the V-shaped filter plate 20;

[0030] The flue gas is drawn from the spray chamber 8 into the filter chamber 7 through the first air supply pipe 21, and the flue gas is finally filtered and adsorbed by the filter screen 25. The filter screen 25 will be cleaned by the continuous rotation of the cleaning roller 12 to prevent blockage. The staff can also press down the limit plate 24 and the extrusion spring 23 to remove the filter screen 25 for maintenance or replacement.

[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0032] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A flue gas denitrification device, comprising a base (1), a processing mechanism and a denitrification mechanism, characterized in that: The upper end surface of the base (1) is fixedly connected to a denitration tank (2), and the outer wall of the denitration tank (2) is provided with multiple groups of observation windows (3). The interior of the denitration tank (2) is fixedly connected with a first partition (4) and a second partition (5) from top to bottom. The upper end of the first partition (4) inside the denitration tank (2) is provided with a mixing chamber (6), and the upper end of the mixing chamber (6) is provided with a feed port (19). A filtering chamber (7) is provided between the first partition (4) and the second partition (5) inside the denitration tank (2), and a spray chamber (8) is provided at the bottom end of the second partition (5) inside the denitration tank (2). The top end of the base (1) is fixedly connected to a servo motor (9), and the power output end of the servo motor (9) passes through the denitration tank (2) and is fixedly connected to a rotating rod (10). The upper end of the rotating rod (10) is provided with a processing mechanism. The mixing chamber (6), the filtering chamber (7), and the spray chamber (8) are provided with a denitration mechanism.

2. A flue gas denitrification device according to claim 1, characterized in that: The processing mechanism comprises a stirring rod (11), a cleaning roller (12), and a water storage plate (13); the outer wall at the top end of the rotating rod (10) is fixedly connected to a plurality of stirring rods (11); the outer wall at the middle position of the rotating rod (10) is fixedly connected to two groups of cleaning rollers (12); the outer wall at the bottom end of the rotating rod (10) is fixedly connected to the water storage plate (13); and the bottom end of the water storage plate (13) is fixedly connected to a plurality of nozzles (14).

3. The flue gas denitrification device according to claim 1, characterized in that: The denitration mechanism comprises a sealed bearing (15), a protective box (16), a pump body (17), a water pipe (18), a feed port (19), a V-shaped filter plate (20), a first air pipe (21), a second air pipe (22), an extrusion spring (23), a limit plate (24), a filter screen (25), and a mounting seat (26). One end of the side wall of the denitration tank (2) is fixedly connected to the protective box (16), the protective box (16) is fixedly connected to the pump body (17), the input end of the pump body (17) is connected to the mixing chamber (6), the output end of the pump body (17) is fixedly connected to the water pipe (18), and the other end of the water pipe (18) is connected to the water storage plate (13) through the sealed bearing (15).

4. A flue gas denitrification device according to claim 3, characterized in that: A V-shaped filter plate (20) is fixedly connected to the bottom end of the filter chamber (7), a second air supply pipe (22) is provided between the spray chamber (8) and the mixing chamber (6), a first air supply pipe (21) is provided between the filter chamber (7) and the spray chamber (8), and the upper ends of the first air supply pipe (21) and the second air supply pipe (22) are both equipped with one-way valves.

5. A flue gas denitrification device according to claim 4, characterized in that: The inner walls of the left and right ends of the filter bin (7) are fixedly connected to mounting seats (26), the bottom ends of the mounting seats (26) are fixedly connected to extrusion springs (23), the upper ends of the extrusion springs (23) are fixedly connected to limit plates (24), and filter screens (25) are movably connected between the two sets of limit plates (24) and the mounting seats (26), and the filter screens (25) are in contact with the cleaning rollers (12).

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