Flue gas denitration device

Abstract

The utility model relates to flue gas denitration technical field especially, it relates to a flue gas denitration device, its technical scheme includes: box and belt, the both sides of box all embed installation has bearing one, two inside ring fixed mounting of bearing one has stirring frame no.

Description

Technical Field

[0001] This utility model relates to the field of flue gas denitrification technology, specifically to a flue gas denitrification device. Background Technology

[0002] Flue gas denitrification devices are equipment used to reduce nitrogen oxide (NOx) emissions generated during industrial processes such as coal combustion. These devices use chemical methods to convert nitrogen oxides into harmless nitrogen gas, thereby reducing the impact on the environment. Common flue gas denitrification technologies include urea selective non-catalytic reduction (SCR), ammonia selective catalytic reduction (SNCR), and ammonia synthesis. Through these devices, the content of harmful nitrogen oxides in flue gas can be effectively reduced, while protecting the atmospheric environment.

[0003] Publication No.: CN219848638U, a flue gas denitrification device includes a treatment box and a dust collection box. The treatment box has an inlet on one side, a stirring mechanism inside, and an outlet at the bottom. The dust collection box has an air inlet on one side and a filter screen inside, located above the air inlet. A cleaning mechanism inside the dust collection box cleans the filter screen. A first air pump is connected to the top of the dust collection box via a pipe, and the first air pump is connected to the treatment box via a pipe. This application, by setting up a dust collection box, a first air pump, and a filter screen, allows dust-laden flue gas to enter the dust collection box through the air inlet, pass through the filter screen to remove dust and impurities, and the first air pump draws air from the dust collection box to facilitate the filtered flue gas passing through the filter screen, preventing dust from entering the treatment box. Ammonia solution is introduced into the treatment box through the inlet, and under the stirring action of the stirring mechanism, the flue gas and the reaction solvent are fully contacted, accelerating the reaction rate.

[0004] In summary, the flue gas denitrification device in the prior art CN219848638U stirs the ammonia solution inside the treatment tank by using stirring rods on both sides of the drive rotor. The large space between adjacent stirring rods results in the ammonia solution inside the treatment tank not being sufficiently stirred, leading to uneven ammonia temperature in some areas. Utility Model Content

[0005] The purpose of this utility model is to provide a flue gas denitrification device that can fully mix ammonia water and flue gas inside the chamber, maintain uniform temperature, and ensure denitrification quality. This solves the problem of uneven temperature caused by insufficient mixing of ammonia water inside the flue gas denitrification device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flue gas denitrification device, comprising a housing and a belt. Bearing 1 is embedded in both sides of the housing, and a stirring frame 1 is fixedly installed within the inner rings of the two bearing 1s. Bearing 2 is embedded in both sides of the housing above the two bearing 1s, and a stirring frame 2 is fixedly installed within the inner rings of the two bearing 2s. The stirring frame 1 and stirring frame 2 are movably connected by the belt. A motor is installed on the side of the housing away from the belt. Support plates are welded to both sides of the bottom of the housing. Fixing plates are welded to opposite sides of the two support plates. Each fixing plate has screw holes, and screw rods are threaded into the inner walls of the screw holes. Connecting plates are movably installed at the bottom of each screw rod.

[0007] When using one of the flue gas denitrification devices in this technical solution, ammonia water is added to the inside of the chamber through the inlet pipe. Two heaters at the bottom of the chamber heat the ammonia water inside the chamber. Flue gas enters the chamber through the inlet pipe. The ammonia water inside the chamber comes into contact with the flue gas and reacts rapidly to remove the nitrate in the flue gas. The motor drives the second stirring frame to rotate through the transmission structure. The second stirring frame drives the first stirring frame to rotate through the belt. The first stirring frame and the second stirring frame mix the ammonia water and flue gas inside the chamber. When it is necessary to move the position of the chamber, the two handles are used to lift the chamber. The two handwheels are used to turn the two screws. The two screws rotate and move in the screw holes of the two fixed plates. The two screws drive the two connecting plates to descend, so that the casters at the bottom of the two connecting plates contact the ground and support the two support plates. The chamber moves to a different position on the ground through the casters.

[0008] Preferably, an air inlet pipe is embedded in the side of the housing away from the motor, and a connecting rod is installed on the side of the air inlet pipe opposite to the housing. Flue gas enters the housing through the air inlet pipe, and the connecting rod increases the connection between the air inlet pipe and the housing.

[0009] Preferably, a water inlet pipe is embedded on one side of the top of the chamber, and a vent pipe is embedded on the other side of the top of the chamber. Ammonia water enters the chamber through the water inlet pipe, and the gas inside the chamber is discharged through the vent pipe.

[0010] Preferably, the motor transmission structure is fixedly connected to the second stirring frame, and the outer stirring rods of the second stirring frame and the first stirring frame are interleaved. The motor drives the second stirring frame to rotate through the transmission structure, and the second stirring frame drives the first stirring frame to rotate through a belt. The first and second stirring frames do not interfere with each other when rotating.

[0011] Preferably, an observation window is embedded in the rear side of the tank, and a water outlet pipe is embedded in the bottom of the tank. The liquid level inside the tank can be observed through the observation window, and the ammonia water inside the tank can be discharged through the water outlet pipe.

[0012] Preferably, two heaters are symmetrically installed at the bottom of the tank on both sides of the outlet pipe. The two heaters can heat the ammonia water inside the tank.

[0013] Preferably, each of the two screws is equipped with a handwheel at its top, and each of the two connecting plates has a sliding rod on its opposite side. Each of the two support plates has a sliding groove on its opposite side, and the two sliding rods are slidably connected to the two sliding grooves. Casters are installed at the bottom of each of the two connecting plates. Using the two handwheels, the two screws can be rotated, causing the two connecting plates to descend. The two sliding rods slide within the two sliding grooves as the connecting plates descend, preventing the connecting plates from wobbling. The casters at the bottom of the two connecting plates contact the ground, facilitating the movement of the housing.

[0014] Preferably, handles are installed on the opposite sides of the two support plates. The two handles can be used to elevate the housing.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention utilizes a belt, a first stirring rack, and a second stirring rack. After ammonia and the flue gas to be denitrated enter the chamber, two heaters at the bottom of the chamber heat the ammonia inside. A motor drives the second stirring rack to rotate via a transmission structure, and the second stirring rack drives the first stirring rack to rotate via a belt. The first and second stirring racks mix the ammonia and flue gas inside the chamber. The ammonia comes into contact with the flue gas and reacts rapidly, removing the nitrate from the flue gas. This achieves the goal of thoroughly mixing the ammonia and flue gas inside the chamber, maintaining a uniform temperature, and ensuring the quality of denitrification. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention from a first angle;

[0018] Figure 2 This is a two-dimensional structural diagram of the present invention from a second angle;

[0019] Figure 3 This is a schematic diagram of the support plate, fixing plate, and connecting plate of this utility model;

[0020] Figure 4 This is a cross-sectional structural diagram of the box body of this utility model.

[0021] In the diagram: 1. Support plate; 2. Handle; 3. Air inlet pipe; 4. Connecting rod; 5. Bearing 1; 6. Bearing 2; 7. Housing; 8. Water inlet pipe; 9. Observation window; 10. Air outlet pipe; 11. Motor; 12. Water outlet pipe; 13. Heater; 14. Handwheel; 15. Fixing plate; 16. Connecting plate; 17. Caster; 18. Stirring rack 1; 19. Belt; 20. Stirring rack 2; 21. Screw; 22. Screw hole; 23. Slide groove; 24. Slide rod. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] 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. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0026] Example 1

[0027] like Figures 1-4As shown, the present invention proposes a flue gas denitrification device, comprising a housing 7 and a belt 19. Bearings 5 ​​are embedded in both sides of the housing 7, and stirring frames 18 are fixedly installed within the inner rings of the two bearings 5. Bearings 6 are embedded in both sides of the housing 7 above the two bearings 5, and stirring frames 20 are fixedly installed within the inner rings of the two bearings 6. The stirring frames 18 and 20 are movably connected by the belt 19. A motor 11 is fixedly connected to the stirring frame 20 via a transmission structure. The outer stirring rods of the stirring frames 20 and 18 are interleaved. A motor 11 is installed on the side of the housing 7 away from the belt 19. An air inlet pipe 3 is embedded in the side of the housing 7 away from the motor 11. A connecting rod 4 is installed on the side of the air inlet pipe 3 opposite to the housing 7. A water inlet pipe 8 is embedded on one side of the top of the box 7, and an air outlet pipe 10 is embedded on the other side of the top of the box 7. An observation window 9 is embedded on the rear side of the box 7. A water outlet pipe 12 is embedded on the bottom of the box 7. Two heaters 13 are symmetrically installed on the bottom of the box 7 on both sides of the water outlet pipe 12. Support plates 1 are welded to both sides of the bottom of the box 7. Fixing plates 15 are welded to the opposite side of the two support plates 1. Both fixing plates 15 have screw holes 22. Screws 21 are threaded into the inner walls of the two screw holes 22. Connecting plates 16 are movably installed at the bottom of the two screws 21. Handwheels 14 are installed on the top of the two screws 21. Casters 17 are installed at the bottom of the two connecting plates 16. Handles 2 are installed on the opposite sides of the two support plates 1.

[0028] In this embodiment, ammonia water is added to the inside of the tank 7 through the water inlet pipe 8. Two heaters 13 at the bottom of the tank 7 heat the ammonia water inside the tank 7. Flue gas enters the inside of the tank 7 through the air inlet pipe 3. The ammonia water inside the tank 7 comes into contact with the flue gas and reacts rapidly to remove nitrates from the flue gas. The motor 11 drives the second stirring frame 20 to rotate through the transmission structure. The second stirring frame 20 drives the first stirring frame 18 to rotate through the belt 19. The first stirring frame 18 and the second stirring frame 20 stir and mix the ammonia water and flue gas inside the tank 7. The ammonia inside the box 7 is discharged from the water outlet pipe 12, and the gas inside the box 7 is discharged from the gas outlet pipe 10. When it is necessary to move the position of the box 7, use the two handles 2 to lift the box 7, use the two handwheels 14 to turn the two screws 21, the two screws 21 rotate and move in the screw holes 22 of the two fixing plates 15, the two screws 21 drive the two connecting plates 16 to descend, so that the casters 17 at the bottom of the two connecting plates 16 contact the ground, and support the two support plates 1, and the box 7 moves to a different position on the ground by means of the casters 17.

[0029] Example 2

[0030] like Figures 1-4As shown, the flue gas denitrification device proposed in this utility model, compared with the first embodiment, further includes: a sliding groove 23 and a sliding rod 24. A sliding rod 24 is installed on the opposite side of the two connecting plates 16, and a sliding groove 23 is opened on the opposite side of the two support plates 1. The two sliding rods 24 are slidably connected to the two sliding grooves 23.

[0031] In this embodiment, two sliding rods 24 limit the two connecting plates 16. When the two connecting plates 16 are raised and lowered, the two sliding rods 24 slide in the two sliding grooves 23 to prevent the two connecting plates 16 from shaking.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A flue gas denitrification device, comprising a housing (7) and a belt (19), characterized in that: Bearing 1 (5) is embedded in both sides of the box (7). A stirring rack 1 (18) is fixedly installed in the inner ring of the two bearing 1 (5). Bearing 2 (6) is embedded in both sides of the box (7) above the two bearing 1 (5). A stirring rack 2 (20) is fixedly installed in the inner ring of the two bearing 2 (6). The stirring rack 1 (18) and the stirring rack 2 (20) are movably connected by a belt (19). A motor (11) is installed on the side of the box (7) away from the belt (19). Support plates (1) are welded to both sides of the bottom of the box (7). Fixing plates (15) are welded to the opposite side of the two support plates (1). Screw holes (22) are opened in both fixing plates (15). Screws (21) are threaded to the inner wall of the two screw holes (22). Connecting plates (16) are movably installed at the bottom of the two screws (21).

2. The flue gas denitrification device according to claim 1, characterized in that: An air inlet pipe (3) is embedded on the side of the housing (7) away from the motor (11), and a connecting rod (4) is installed on the side of the air inlet pipe (3) opposite to the housing (7).

3. The flue gas denitrification device according to claim 1, characterized in that: A water inlet pipe (8) is embedded on one side of the top of the box (7), and an air outlet pipe (10) is embedded on the other side of the top of the box (7).

4. The flue gas denitrification device according to claim 1, characterized in that: The motor (11) transmission structure is fixedly connected to the stirring rack two (20), and the stirring rods on the outer sides of the stirring rack two (20) and the stirring rack one (18) are intertwined.

5. The flue gas denitrification device according to claim 1, characterized in that: An observation window (9) is embedded in the rear side of the box (7), and a water outlet pipe (12) is embedded in the bottom of the box (7).

6. The flue gas denitrification device according to claim 5, characterized in that: Two heaters (13) are symmetrically installed at the bottom of the box (7) on both sides of the water outlet pipe (12).

7. The flue gas denitrification device according to claim 1, characterized in that: Handwheels (14) are installed on the top of both screws (21), slide rods (24) are installed on the opposite sides of the two connecting plates (16), and slide grooves (23) are opened on the opposite sides of the two support plates (1). The two slide rods (24) are slidably connected to the two slide grooves (23), and casters (17) are installed at the bottom of the two connecting plates (16).

8. The flue gas denitrification device according to claim 1, characterized in that: Handles (2) are installed on opposite sides of the two support plates (1).

Images