Reaction device for denitration

Abstract

The utility model relates to the technical field of denitration, and provides a denitration reaction device which comprises a denitration tank, a denitration motor is arranged at the top of the denitration tank, a main breather pipe is arranged at the output end of the denitration motor, and the output end of the denitration motor penetrates through the top of the denitration tank and is connected to the main breather pipe. A plurality of groups of branch breather pipes are uniformly and symmetrically arranged on the side wall of the main breather pipe, fan blades are arranged below the branch breather pipes, spray pipes are uniformly arranged above the branch breather pipes, and the main breather pipe, the branch breather pipes and the spray pipes are all communicated; the rotation of the fan blades and the spraying of ammonia gas of the spraying pipe form a synergistic effect, so that the flue gas and the ammonia gas are fully mixed, the catalytic reaction is accelerated, the efficiency of the whole denitration process is improved, the purpose of efficient denitration is finally achieved, the denitration effect is optimized in the process, the denitration rate is also improved, and the service life of the denitration device is prolonged. Powerful guarantee is provided for industrial waste gas treatment.

Description

Technical Field

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

[0002] Nitrogen oxide emissions are a prevalent environmental problem in existing industrial production processes. Nitrogen oxides not only exacerbate air pollution but also lead to problems such as acid rain and photochemical smog, which have a serious impact on human health and the ecological environment. Therefore, how to effectively remove or reduce nitrogen oxide emissions has become an important issue in environmental protection and industrial technology development.

[0003] With the advancement of science and technology, various denitrification technologies have been continuously developed and improved. Among them, reaction devices are a commonly used denitrification method. These devices mix gases containing nitrogen oxides with specific reactants and use chemical reactions to convert them into harmless substances, thereby achieving the effective removal of nitrogen oxides.

[0004] However, in the current denitrification reactor operation, if ammonia is injected into the flue gas through ammonia injection nozzles, insufficient ammonia injection coverage can easily occur if the angle, number, and other parameters of the ammonia injection nozzles are not set precisely enough. This directly leads to poor mixing of ammonia with some areas of the flue gas. Under such conditions, ammonia cannot achieve uniform mixing with nitrogen oxides in the flue gas, causing a considerable portion of nitrogen oxides to fail to react properly due to insufficient contact with ammonia. Ultimately, these nitrogen oxides are emitted into the atmosphere in their original form with the flue gas. This undoubtedly significantly affects the efficiency of the entire denitrification process, preventing the achievement of the ideal nitrogen oxide removal level and resulting in a significant decrease in the denitrification rate. Therefore, a denitrification reactor is proposed to improve the existing problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a denitrification reaction device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a denitrification reaction device, including a denitrification tank, a denitrification motor is provided at the top of the denitrification tank, a main vent pipe is provided at the output end of the denitrification motor, the output end of the denitrification motor passes through the top of the denitrification tank and is connected to the main vent pipe, multiple sets of branch vent pipes are uniformly and symmetrically arranged on the side wall of the main vent pipe, fan blades are provided below the branch vent pipes, and spray pipes are uniformly arranged above the branch vent pipes, and the main vent pipe, branch vent pipes and spray pipes are all connected.

[0007] The present invention is further configured such that: the side wall of the denitrification tank is provided with an inlet, and the side wall of the inlet is provided with a first check valve.

[0008] The present invention is further configured such that: an outlet is provided on the side of the denitrification tank away from the inlet, and a second check valve is provided on the side wall of the outlet; the height of the outlet is greater than the height of the inlet.

[0009] The present invention is further configured such that: an ammonia inlet is provided at the bottom of the denitrification tank, a third check valve is provided on the side wall of the ammonia inlet, the ammonia inlet penetrates the bottom of the denitrification tank and is connected to the main vent pipe, and the ammonia inlet is connected to the main vent pipe.

[0010] The present invention is further configured such that: the bottom of the denitrification tank is provided with multiple support frames.

[0011] The present invention is further configured such that both the fan blades and the nozzle are inclined.

[0012] The present invention is further configured such that a nozzle is provided at the output end of the nozzle.

[0013] In summary, this application includes at least one of the following beneficial technical effects: the rotation of the fan blades and the ammonia gas ejection from the nozzle form a synergistic effect, which not only fully mixes the flue gas and ammonia gas, but also accelerates the catalytic reaction, thereby improving the efficiency of the entire denitrification process and ultimately achieving the goal of high-efficiency denitrification. This process not only optimizes the denitrification effect, but also improves the denitrification rate, providing a strong guarantee for industrial waste gas treatment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the reaction device for denitrification according to this utility model;

[0015] Figure 2 This is an isometric side view of the denitrification reaction apparatus of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the main vent pipe, branch vent pipes, fan blades and nozzle in this utility model;

[0017] Explanation of reference numerals in the attached diagram: 1. Denitrification tank; 11. Support frame; 2. Denitrification motor; 3. Main vent pipe; 4. Branch vent pipe; 5. Fan blade; 6. Spray pipe; 61. Nozzle; 7. Inlet; 71. First check valve; 8. Outlet; 81. Second check valve; 9. Ammonia inlet; 91. Third check valve. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0020] Please see Figures 1-3 The present invention provides the following technical solution:

[0021] Example 1, see Figures 1-3 A denitrification reaction device includes a denitrification tank 1, a denitrification motor 2 is installed on the top of the denitrification tank 1, a main vent pipe 3 is installed at the output end of the denitrification motor 2, the output end of the denitrification motor 2 passes through the top of the denitrification tank 1 and is connected to the main vent pipe 3, a number of branch vent pipes 4 are evenly and symmetrically arranged on the side wall of the main vent pipe 3, fan blades 5 are installed below the branch vent pipes 4, and nozzles 6 are evenly arranged above the branch vent pipes 4, and the main vent pipe 3, the branch vent pipes 4 and the nozzles 6 are all connected.

[0022] The denitrification tank 1 is mainly used to contain the denitrification gas to be treated. The denitrification motor 2 can drive the main ventilation pipe 3 to rotate, thereby driving the fan blade 5 to rotate. This process helps the flue gas and ammonia to mix fully and react. The main ventilation pipe 3 is equipped with multiple branch ventilation pipes 4. The nozzles 6 are evenly distributed on the branch ventilation pipes 4, which can spray ammonia to further accelerate the entire denitrification process.

[0023] During denitrification operation, the flue gas first enters the denitrification tank 1, and then the denitrification motor 2 is started. Its output end rotates, which in turn drives the main ventilation pipe 3 and the branch ventilation pipe 4 to rotate. The fan blades 5 below the branch ventilation pipe 4 also rotate. At the same time, ammonia gas is sprayed out synchronously through the nozzles 6 evenly distributed on the branch ventilation pipe 4. The rotation of the fan blades 5 and the sprayed ammonia gas form a synergistic effect, which promotes the full mixing of flue gas and ammonia gas, significantly improves the mixing effect and accelerates the catalytic reaction process, thereby optimizing the process efficiency and improving the denitrification rate.

[0024] See Figures 1-3 Furthermore, the denitrification tank 1 is provided with an inlet 7 on its side wall, and a first check valve 71 is provided on the side wall of the inlet 7.

[0025] Inlet 7 is the channel through which flue gas enters the denitrification tank 1. Its side wall is equipped with a first check valve 71, which can control the flow of flue gas and prevent flue gas from flowing in during non-working periods. When the denitrification tank 1 is running, the first check valve 71 is opened, and the flue gas enters the denitrification tank through inlet 7 for treatment. When the flue gas in the tank meets the standard and there is no need to continue to introduce flue gas, the first check valve 71 is closed to prevent the flue gas from continuing to enter.

[0026] See Figures 1-3 Furthermore, the denitrification tank 1 has an outlet 8 on the side away from the inlet 7, and a second check valve 81 is installed on the side wall of the outlet 8; the height of the outlet 8 is greater than the height of the inlet 7.

[0027] The inlet 7 is used to introduce waste gas containing nitrogen oxides, while the outlet 8 is used to discharge the treated waste gas. The height of the outlet 8 is greater than that of the inlet 7, which helps to use buoyancy to smoothly discharge the treated waste gas, reduce internal pressure, and improve exhaust efficiency. The second check valve 81 is set on the side wall of the outlet 8 and can be opened or closed as needed to control the flow rate of the waste gas and ensure the adjustability and safety of the exhaust process. The waste gas containing nitrogen oxides enters the denitrification tank 1 through the inlet 7, is treated inside, and is discharged through the outlet 8. The second check valve 81 is used to control the exhaust flow rate to ensure the stable operation of the system.

[0028] See Figures 1-3 Furthermore, the bottom of the denitrification tank 1 is also provided with an ammonia inlet 9, and the side wall of the ammonia inlet 9 is provided with a third check valve 91. The ammonia inlet 9 passes through the bottom of the denitrification tank 1 and is connected to the main vent pipe 3. The ammonia inlet 9 is connected to the main vent pipe 3.

[0029] The ammonia inlet 9 is used to introduce ammonia into the bottom of the denitrification tank 1. The third check valve 91 is used to control the flow rate of ammonia to ensure that ammonia can safely enter the denitrification tank 1. Ammonia is input into the main ventilation pipe 3 through the ammonia inlet 9, then flows into the branch ventilation pipe 4, and finally is sprayed into the denitrification tank 1 through the nozzle 6, where it is fully mixed with the flue gas and undergoes a catalytic reaction to achieve efficient denitrification.

[0030] See Figures 1-3 Furthermore, the bottom of the denitrification tank 1 is provided with multiple support frames 11.

[0031] The support frame 11 is used to support the bottom of the denitrification tank 1, ensuring that it is stably installed on the ground.

[0032] See Figures 1-3 Furthermore, both the fan blade 5 and the nozzle 6 are set at an angle.

[0033] Among them, the fan blade 5, by being tilted, can generate more effective airflow guidance, increase the kinetic energy of the airflow, and improve the air velocity, thereby enhancing the ability to propel the gas; the tilted setting of the nozzle 6 helps to optimize the outlet direction of the airflow, so that the airflow can more accurately cover the required area, improving work efficiency and effectiveness.

[0034] See Figures 1-3 Furthermore, a nozzle 61 is also provided at the output end of the nozzle 6.

[0035] Ammonia gas is sprayed from nozzle 61 through nozzle 6 into denitrification tank 1 and mixed with flue gas in denitrification tank 1.

[0036] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

Claims

1. A denitrification reaction apparatus, characterized in that: include, A denitrification tank (1) is provided with a denitrification motor (2) at the top of the denitrification tank (1). A main vent pipe (3) is provided at the output end of the denitrification motor (2). The output end of the denitrification motor (2) passes through the top of the denitrification tank (1) and is connected to the main vent pipe (3). Multiple sets of branch vent pipes (4) are evenly and symmetrically arranged on the side wall of the main vent pipe (3). Fan blades (5) are provided below the branch vent pipes (4). Spray pipes (6) are evenly arranged above the branch vent pipes (4). The main vent pipe (3), branch vent pipes (4) and spray pipes (6) are all connected.

2. The denitrification reaction apparatus according to claim 1, characterized in that: The denitrification tank (1) is provided with an inlet (7) on its side wall, and a first check valve (71) is provided on the side wall of the inlet (7).

3. The denitrification reaction apparatus according to claim 2, characterized in that: The denitrification tank (1) has an outlet (8) on the side away from the inlet (7), and a second check valve (81) is provided on the side wall of the outlet (8); the height of the outlet (8) is greater than the height of the inlet (7).

4. The denitrification reaction apparatus according to claim 1, characterized in that: The bottom of the denitrification tank (1) is also provided with an ammonia inlet (9), and the side wall of the ammonia inlet (9) is provided with a third check valve (91). The ammonia inlet (9) penetrates the bottom of the denitrification tank (1) and is connected to the main vent pipe (3). The ammonia inlet (9) is connected to the main vent pipe (3).

5. The denitrification reaction apparatus according to claim 1, characterized in that: The bottom of the denitrification tank (1) is provided with multiple support frames (11).

6. The denitrification reaction apparatus according to claim 2, characterized in that: Both the fan blades (5) and the nozzle (6) are inclined.

7. The denitrification reaction apparatus according to claim 6, characterized in that: The nozzle (6) is also provided with a nozzle (61) at the output end of the nozzle (6).

Images