Waste gas reaction device for deamination tower

Abstract

The utility model provides a waste gas reaction device for a deamination tower, which relates to the technical field of deamination towers and comprises a first reaction tank, the outer surface wall of the first reaction tank is fixedly communicated with a gas inlet pipe, a connecting pipe and a first liquid conveying pipe, and the output end of the connecting pipe is fixedly communicated with a second reaction tank. The top of the second reaction tank is fixedly communicated with a second liquid conveying pipe, the output end of the second liquid conveying pipe is fixedly communicated with a flow dividing disc, and the bottom of the flow dividing disc is fixedly communicated with a plurality of atomizing nozzles. Therefore, the condition that residual ammonia gas in the deamination tower is discharged into air is avoided, and the discharged waste gas cannot cause resource waste and air pollution.

Description

Technical Field

[0001] The utility model relates to the technical field of deamination towers, in particular to a waste gas reaction device for deamination towers. Background Art

[0002] The deamination tower is a device used to burn ammonia in exhaust gas. Its main function is to remove ammonia from N2O2 exhaust gas.

[0003] Existing, such as Chinese patent publication number CN218077212U discloses a waste gas reaction device for a deamination tower, including a reaction tank, a triangular column is provided in the reaction tank, a motor is provided in the triangular column, the output shaft of the motor is connected to a rotating shaft, a plurality of supporting mesh plates are sleeved around the rotating shaft, two semicircular mesh frames are provided above the supporting mesh plates, a limit frame is provided above the supporting mesh plates and around the semicircular mesh frames, an arc sleeve is provided around the rotating shaft and above the semicircular mesh frames, an arc door is provided in the reaction tank, a diamond column is provided in the reaction tank, a plurality of stirring shafts are provided around the rotating shaft in the reaction tank, a plurality of heating wires are provided in the reaction tank, a liquid outlet pipe is inserted in the reaction tank, a switch valve is provided in the liquid outlet pipe sleeve, a horizontal plate is provided above the reaction tank, and the reaction tank and the horizontal plate are connected by an annular mesh plate. The utility model provides a waste gas reaction device for a deamination tower that can perform waste gas treatment in multiple stages and is convenient for replacing substances that react with waste gas.

[0004] Although the above patent provides a waste gas reaction device for a deamination tower that can perform waste gas treatment at multiple stages and is convenient for replacing substances that react with waste gas, there are still some shortcomings. For example, some ammonia will inevitably remain in the waste gas during the deamination process of the deamination tower, and the device can only treat the waste gas, and there is no subsequent treatment method for recovering the ammonia. As a result, the residual ammonia is directly discharged into the air, which not only causes a waste of resources, but also causes air pollution. Therefore, it is necessary to propose a new type of waste gas reaction device for a deamination tower. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that in the prior art, some ammonia will inevitably remain in the waste gas during the deamination process of the deamination tower, and the device can only treat the waste gas, and there is no subsequent treatment method for recovering the ammonia, resulting in the residual ammonia being directly discharged into the air, which not only causes a waste of resources but also causes air pollution. By setting up a water absorption method and an aqueous solution absorption method to perform secondary absorption of ammonia in the waste gas, the problems raised in the background technology are solved.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a waste gas reaction device for a deammonification tower, comprising: a first reaction tank, the outer wall of the first reaction tank is fixedly connected with an air inlet pipe, a connecting pipe and a first liquid infusion pipe, the output end of the connecting pipe is fixedly connected with a second reaction tank, the top of the second reaction tank is fixedly connected with a second liquid infusion pipe, the output end of the second liquid infusion pipe is fixedly connected with a diverter disk, the bottom of the diverter disk is fixedly connected with a plurality of atomizing nozzles, the outer wall of the second reaction tank is fixedly connected with a discharge pipe, and the bottoms of the first reaction tank and the second reaction tank are both fixedly connected with discharge pipes.

[0007] Preferably, the output end of the discharge pipe is fixedly connected to a disinfection pipe, a filter frame is fixedly installed on the inner surface wall of the disinfection pipe, and an activated carbon net is fixedly installed on the inner surface wall of the filter frame, so as to facilitate the disinfection operation of the waste gas from the secondary reaction.

[0008] Preferably, the output end of the discharge pipe is fixedly connected to a detection tube, and an ammonia sensor is fixedly installed on the inner surface wall of the detection tube to facilitate the detection of whether there is any gas residue inside the exhaust gas.

[0009] Preferably, the output end of the detection tube is fixedly connected to a steering valve, and the two output ends of the steering valve are respectively fixedly connected to a first collecting tube and a second collecting tube, so that once the ammonia sensor detects that there is residual ammonia in the exhaust gas, the exhaust gas can be transported to the inside of the first collecting tube.

[0010] Preferably, an indicator light is fixedly mounted on one side of the outer wall of the steering valve, and the indicator light is electrically connected to the ammonia sensor, so that when the ammonia sensor detects the presence of ammonia, the indicator light can be used to remind the staff.

[0011] Preferably, a temperature sensor is fixedly mounted on the inner wall of the first reaction tank, a display screen is fixedly mounted on the outer wall of the first reaction tank, and the display screen is electrically connected to the temperature sensor, so as to facilitate real-time monitoring of the temperature inside the first reaction tank.

[0012] Preferably, a motor is fixedly inserted on the top of the first reaction tank through a reducer, a rotating shaft is fixedly installed on the output end of the reducer, and a rotating paddle is fixedly installed on the output end of the rotating shaft, so as to facilitate stirring of the concentrated sulfuric acid solution and improve the efficiency of sulfuric acid and ammonia generation.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] In the utility model, by setting a first reaction tank and a second reaction tank, concentrated sulfuric acid and ammonia are first added into the first reaction tube to react by water absorption method, ammonia and other gases that are not reacted in time will enter the second reaction tank through the connecting tube, and sodium hydroxide aqueous solution is transported through the second infusion tube, and ammonia is absorbed again by aqueous solution absorption method, and then the ammonia remaining in the deamination tower is absorbed through the secondary absorption reaction, thereby avoiding the situation that the ammonia remaining in the deamination tower is discharged into the air, so that the discharged waste gas will not cause waste of resources and pollute the air.

[0015] 2. In the utility model, by setting an activated carbon net, the ammonia gas that still remains after two absorptions can be disinfected, and then the remaining gas will be detected by the ammonia sensor through the detection tube to determine whether there is any residual ammonia gas in the discharged gas, and through the operation of the steering valve, the residual gas will be discharged into the first collecting tube for collection, and the gas without residual gas will be processed through the second collecting tube for other gases, thereby improving the stability of exhaust gas emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a main structural stereogram of a waste gas reaction device for a deamination tower proposed by the utility model;

[0017] Figure 2 It is a sectional perspective view of the interior of the first reaction tank and the second reaction tank in a waste gas reaction device for a deammonification tower proposed by the utility model;

[0018] Figure 3 This is a three-dimensional diagram of the structure of the part near the detection tube in the waste gas reaction device for the deamination tower proposed by the utility model;

[0019] Figure 4 This is a partial cross-sectional structural stereogram of a disinfection pipe in a waste gas reaction device for a deammonification tower proposed by the utility model.

[0020] Legend: 1. First reaction tank; 2. Air inlet pipe; 3. Connecting pipe; 4. Second reaction tank; 5. First infusion tube; 6. Second infusion tube; 7. Diverter plate; 8. Atomizing nozzle; 9. Discharge pipe; 10. Discharge pipe; 11. Disinfection tube; 12. Filter frame; 13. Activated carbon net; 14. Detection tube; 15. Ammonia sensor; 16. Steering valve; 17. First collection tube; 18. Second collection tube; 19. Indicator light; 20. Temperature sensor; 21. Display screen; 22. Motor; 23. Rotating shaft; 24. Rotating paddle. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1, as Figure 1-Figure 2 As shown, the utility model provides a waste gas reaction device for a deammonification tower, comprising: a first reaction tank 1, the outer wall of the first reaction tank 1 is fixedly connected with an air inlet pipe 2, a connecting pipe 3 and a first liquid infusion pipe 5, the output end of the connecting pipe 3 is fixedly connected with a second reaction tank 4, the top of the second reaction tank 4 is fixedly connected with a second liquid infusion pipe 6, the output end of the second liquid infusion pipe 6 is fixedly connected with a diverter plate 7, the bottom of the diverter plate 7 is fixedly connected with a plurality of atomizing nozzles 8, the outer wall of the second reaction tank 4 is fixedly connected with a discharge pipe 10, and the bottoms of the first reaction tank 1 and the second reaction tank 4 are both fixedly connected with a discharge pipe 9.

[0024] The effect achieved by the entire embodiment 1 is that by setting the first reaction tank 1 and the second reaction tank 4, concentrated sulfuric acid is first added to the first reaction tube to react with ammonia by water absorption method. Ammonia and other gases that are not reacted in time will enter the second reaction tank 4 through the connecting pipe 3, and the sodium hydroxide aqueous solution is transported through the second infusion pipe 6. The ammonia is absorbed again by the aqueous solution absorption method, and then the ammonia remaining in the deamination tower is absorbed through the secondary absorption reaction, thereby avoiding the situation where the ammonia remaining in the deamination tower is discharged into the air, so that the discharged waste gas will not cause waste of resources and pollute the air.

[0025] Embodiment 2, as Figure 1-Figure 4As shown, the output end of the discharge pipe 10 is fixedly connected to a disinfection pipe 11, a filter frame 12 is fixedly installed on the inner wall of the disinfection pipe 11, an activated carbon net 13 is fixedly installed on the inner wall of the filter frame 12, a detection tube 14 is fixedly connected to the output end of the discharge pipe 10, an ammonia sensor 15 is fixedly installed on the inner wall of the detection tube 14, a steering valve 16 is fixedly connected to the output end of the detection tube 14, two output ends of the steering valve 16 are respectively fixedly connected to a first collecting tube 17 and a second collecting tube 18, an indicator light 19 is fixedly installed on one side of the outer wall of the steering valve 16, and the indicator light 19 is electrically connected to the ammonia sensor 15, a temperature sensor 20 is fixedly installed on the inner wall of the first reaction tank 1, a display screen 21 is fixedly installed on the outer wall of the first reaction tank 1, and the display screen 21 is electrically connected to the temperature sensor 20, a motor 22 is fixedly inserted on the top of the first reaction tank 1 through a reducer, a rotating shaft 23 is fixedly installed on the output end of the reducer, and a rotating paddle 24 is fixedly installed on the output end of the rotating shaft 23.

[0026] The effect achieved by the entire embodiment 2 is that, by setting up the activated carbon net 13, the ammonia gas that still remains after two absorptions can be disinfected, and then the remaining gas will be detected by the ammonia sensor 15 through the detection tube 14, so as to determine whether there is any residual ammonia gas in the discharged gas, and through the operation of the diverter valve 16, the residual gas is discharged into the first collecting tube 17 for collection, and the gas without residual gas is processed by the second collecting tube 18 for other gases, thereby improving the stability of exhaust gas emissions.

[0027] The working principle of the whole device is as follows: firstly, concentrated sulfuric acid and water are discharged into the first infusion pipe 5 of the first reaction tank 1, and after the water level of the sulfuric acid solution exceeds the bottom of the air inlet pipe 2, the waste gas to be treated is discharged into the first reaction tank 1 through the air inlet pipe 2, and then the ammonia in the waste gas reacts with the sulfuric acid solution. At this time, the motor 22 is started to drive the paddle 24 to stir the solution to form salt. Since heat is released when ammonia reacts with sulfuric acid, the temperature sensor 20 will detect the first reaction tank 1 at this time to prevent the first reaction tank 1 from exploding at high temperature. Other gases and ammonia that does not react in time will enter the second reaction tank 4 through the first connecting pipe 3. At this time, the sodium hydroxide solution is transported through the second infusion pipe 6. Ammonia will react with the sodium hydroxide solution and be absorbed by the sodium hydroxide solution. Since ammonia releases heat when reacting with sulfuric acid, the heat generated can catalyze the reaction between sodium hydroxide and ammonia, further improving the efficiency of the reaction. At this time, other gases will be discharged into the disinfection pipe 11 through the discharge pipe 10, and then the activated carbon net 13 will adsorb the residual ammonia and other toxic gases, and enter the detection tube 14 to be detected by the ammonia sensor 15. If it is found that there is still residual ammonia, the gas will be discharged into the first collection tube 17 for collection through the diverter valve 16, and the indicator light 19 will generate a red light to alarm. If there is no residual ammonia, it will be transmitted to the inside of the second collection tube 18 to enter the next step of waste gas treatment.

[0028] The above description is only a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A waste gas reaction device for a deamination tower, characterized in that: The invention comprises a first reaction tank (1), wherein an outer wall of the first reaction tank (1) is fixedly connected to an air inlet pipe (2), a connecting pipe (3) and a first liquid infusion pipe (5), an output end of the connecting pipe (3) is fixedly connected to a second reaction tank (4), a top of the second reaction tank (4) is fixedly connected to a second liquid infusion pipe (6), an output end of the second liquid infusion pipe (6) is fixedly connected to a diverter plate (7), a bottom of the diverter plate (7) is fixedly connected to a plurality of atomizing nozzles (8), an outer wall of the second reaction tank (4) is fixedly connected to a discharge pipe (10), and the bottoms of the first reaction tank (1) and the second reaction tank (4) are fixedly connected to a discharge pipe (9).

2. The waste gas reaction device for a deamination tower according to claim 1, characterized in that: The output end of the discharge pipe (10) is fixedly connected to a disinfection pipe (11), a filter frame (12) is fixedly mounted on the inner surface wall of the disinfection pipe (11), and an activated carbon net (13) is fixedly mounted on the inner surface wall of the filter frame (12).

3. The waste gas reaction device for a deamination tower according to claim 2, characterized in that: The output end of the discharge pipe (10) is fixedly connected to a detection tube (14), and an ammonia sensor (15) is fixedly mounted on the inner surface wall of the detection tube (14).

4. The waste gas reaction device for a deamination tower according to claim 3, characterized in that: The output end of the detection tube (14) is fixedly connected to a steering valve (16), and the two output ends of the steering valve (16) are respectively fixedly connected to a first collecting tube (17) and a second collecting tube (18).

5. The waste gas reaction device for a deamination tower according to claim 4, characterized in that: An indicator light (19) is fixedly mounted on one side of the outer wall of the steering valve (16), and the indicator light (19) is electrically connected to the ammonia sensor (15).

6. The waste gas reaction device for a deamination tower according to claim 1, characterized in that: A temperature sensor (20) is fixedly mounted on the inner wall of the first reaction tank (1), and a display screen (21) is fixedly mounted on the outer wall of the first reaction tank (1), and the display screen (21) is electrically connected to the temperature sensor (20).

7. The waste gas reaction device for a deamination tower according to claim 1, characterized in that: A motor (22) is fixedly inserted into the top of the first reaction tank (1) via a reducer, a rotating shaft (23) is fixedly mounted on the output end of the reducer, and a rotating paddle (24) is fixedly mounted on the output end of the rotating shaft (23).

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