Atomized ammonia water denitration device

Abstract

The utility model relates to the technical field of atomized ammonia water denitration devices, in particular to an atomized ammonia water denitration device which comprises a device main body for denitration, and the device main body comprises a reducing agent storage tank, a gas storage tank, a compressor, a connecting pipe, a turbulator, a spray gun header pipe, a linear nozzle and a cyclone cylinder, a gas storage tank is arranged on one side of the reducing agent storage tank, one side of the gas storage tank communicates with a compressor, a turbulator is arranged on one side of the compressor, a spray gun header pipe is arranged on one side of the turbulator, and one end of the spray gun header pipe communicates with a linear nozzle. One end of the reducing agent storage tank, one end of the gas storage tank, one end of the compressor, one end of the turbulator, one end of the cyclone cylinder and one end of the spray gun header pipe are all communicated with a connecting pipe, and the gas flow speed reducing device is arranged, so that the gas flow speed in the cyclone cylinder can be reduced, the time of gas passing through the cyclone cylinder is prolonged, and the mixing effect of ammonia water and gas is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of atomized ammonia water denitration devices, and specifically relates to an atomized ammonia water denitration device. Background Technique

[0002] The SNCR denitration technology is a clean denitration technology that does not use a catalyst. In the temperature range of 850 - 1100 °C, a reducing agent containing amino groups (such as ammonia water, urea solution, etc.) is sprayed into the furnace to reduce and remove NOx in the flue gas, generating nitrogen and water. The ammonia water denitration device usually consists of a spray gun main pipe, a reducing agent storage tank, a gas storage tank, a compressor, a turbulator, a cyclone, etc.

[0003] When the ammonia water denitration device is in use, ammonia water contacts with nitrogen oxide gas in the straight section of the five - stage cyclone. Due to the certain flow rate of the gas in the five - stage cyclone, after the ammonia water is sprayed, it is easy to be washed away by the impact force of the gas during diffusion, resulting in insufficient reaction with the flue gas and low utilization rate of ammonia water, causing a certain degree of waste. Therefore, an atomized ammonia water denitration device is proposed for the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide an atomized ammonia water denitration device to solve the problems of insufficient reaction between ammonia water and flue gas and low utilization rate of ammonia water.

[0005] To achieve the above purpose, the utility model provides the following technical solution:

[0006] An atomized ammonia water denitration device includes a device main body for denitration. The device main body includes a reducing agent storage tank, a gas storage tank, a compressor, a connecting pipe, a turbulator, a spray gun main pipe, a linear nozzle, and a cyclone. A gas storage tank is arranged on one side of the reducing agent storage tank. The gas storage tank is communicated with a compressor on one side. A turbulator is arranged on one side of the compressor. A spray gun main pipe is arranged on one side of the turbulator. One end of the spray gun main pipe is communicated with a linear nozzle. One end of the linear nozzle is inserted into the cyclone. One end of the reducing agent storage tank, the gas storage tank, the compressor, the turbulator, the cyclone, and the spray gun main pipe are all communicated with a connecting pipe. A gas flow rate reducing device is arranged on one side of the cyclone. The gas flow rate reducing device includes a valve, a fan, a connecting piece, an air outlet, and a support plate. A valve for reducing the gas flow rate is arranged outside the connecting pipe at the top of the cyclone. A hollow - shaped connecting piece is closely attached to the outside of the conical part in the lower half of the cyclone. A fan is communicated with one side of the connecting piece. A plurality of air outlets are communicated with the other side of the connecting piece. A support plate with a protruding end is closely attached to the bottom of the connecting piece. A limiting device is arranged below the connecting piece.

[0007] Preferably, several of the linear nozzles are arranged in a group at equal intervals in a staggered up-and-down manner at the main gun pipe, and the main gun pipe and the turbulator are connected and communicated through a connecting pipe.

[0008] Preferably, the connecting member is arranged in a semi-circular shape, several of the air outlets are arranged to incline upward at the same angle, and the protruding part of the support plate is closely attached to the fan.

[0009] Preferably, the limiting device includes a fixing plate, a hard spring and a moving rod, and the fixing plate is fixedly connected to the cyclone.

[0010] Preferably, the fixing plate is fixedly connected to the support plate, a moving rod is slidably connected inside the fixing plate, a hard spring is arranged outside the moving rod, and the hard spring is arranged between the fixing plate and the moving rod.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] In the present utility model, through the arranged device main body, reducing agent storage tank, gas storage tank, compressor, connecting pipe, turbulator, main gun pipe, linear nozzle and cyclone, the reducing agent and the compressed gas are mixed in the turbulator, and after passing through the main gun pipe, they are sprayed out in a mist form through the linear nozzle, and react with the flue gas in the cyclone. The linear nozzles arranged in a staggered up-and-down manner prevent the re-aggregation and uneven distribution of the atomized ammonia water, improving the utilization rate of ammonia water. Through the arranged gas flow rate reducing device, valve, fan, connecting member, air outlet and support plate, the air flow rate in the cyclone can be controlled by adjusting the valve, and by controlling the fan, an upward impact force generated by the upwardly inclined air outlets is used to fully mix the flue gas and ammonia water in the cyclone, thereby increasing the reaction effect. Through the arranged limiting device, fixing plate, hard spring and moving rod, the support plate effectively supports the connecting member and the air outlet under the action of the hard spring, facilitating the removal and cleaning of the air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0014] Figure 2 is of the present utility model Figure 1 structural schematic diagram of part A;

[0015] Figure 3 is a schematic sectional view of the cyclone of the present utility model;

[0016] Figure 4 is of the present utility model Figure 3 structural schematic diagram of part B.

[0017] In the figure: 1. Device main body; 11. Reducing agent storage tank; 12. Gas storage tank; 13. Compressor; 14. Connecting pipe; 15. Turbulator; 16. Spray gun main pipe; 17. Linear nozzle; 18. Cyclone; 2. Gas flow rate reducing device; 21. Valve; 22. Fan; 23. Connector; 24. Air outlet; 25. Support plate; 3. Limiting device; 31. Fixed plate; 32. Hard spring; 33. Moving rod. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] It should be noted that the terms used herein are only for describing specific implementation manners and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless otherwise clearly specified in the context, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0020] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of differentiating the corresponding components. Without further declaration, the above terms have no special meanings, so they cannot be understood as limiting the protection scope of the present invention.

[0021] Please refer to Figures 1-4 , the present invention provides a technical solution:

[0022] An atomized ammonia water denitration device includes a device main body 1 for denitration. The device main body 1 includes a reductant storage tank 11, a gas storage tank 12, a compressor 13, a connecting pipe 14, a turbulator 15, a spray gun main pipe 16, a linear nozzle 17 and a cyclone 18. A gas storage tank 12 is arranged on one side of the reductant storage tank 11. The gas storage tank 12 is communicated with a compressor 13 on one side. A turbulator 15 is arranged on one side of the compressor 13. A spray gun main pipe 16 is arranged on one side of the turbulator 15. One end of the spray gun main pipe 16 is communicated with a linear nozzle 17. One end of the linear nozzle 17 is inserted into the cyclone 18. One ends of the reductant storage tank 11, the gas storage tank 12, the compressor 13, the turbulator 15, the cyclone 18 and the spray gun main pipe 16 are all communicated with a connecting pipe 14. A gas flow rate reducing device 2 is arranged on one side of the cyclone 18. The gas flow rate reducing device 2 includes a valve 21, a fan 22, a connecting piece 23, an air outlet 24 and a support plate 25. A valve 21 for reducing the gas flow rate is arranged on the outer side of the connecting pipe 14 at the top of the cyclone 18. A hollow connecting piece 23 is closely attached to the outer side of the conical part in the lower half of the cyclone 18. A fan 22 is communicated with one side of the connecting piece 23. A plurality of air outlets 24 are communicated with the other side of the connecting piece 23. A support plate 25 with a protruding end is closely attached to the bottom of the connecting piece 23. A limiting device 3 is arranged below the connecting piece 23. By arranging the gas flow rate reducing device 2, the gas flow rate in the cyclone 18 can be reduced, and the time for the gas to pass through the cyclone 18 can be prolonged, thereby increasing the mixing effect of ammonia water and the gas.

[0023] Several linear nozzles 17 are distributed in a group at the spray gun main pipe 16 in a staggered and equidistant manner up and down. The spray gun main pipe 16 and the turbulator 15 are connected and communicated through the connecting pipe 14 to prevent the atomized ammonia water from aggregating again and uneven distribution, and improve the utilization rate of ammonia water. The connecting piece 23 is arranged in a semi-circular shape. A plurality of air outlets 24 are arranged to tilt upward at the same angle. The protruding part of the support plate 25 is closely attached to the fan 22. The air outlets 24 can reduce the gas flow rate in the cyclone 18 and increase the mixing effect in the cyclone 18. The limiting device 3 includes a fixing plate 31, a hard spring 32 and a moving rod 33. The fixing plate 31 is fixedly connected to the cyclone 18 to facilitate the support of the connecting piece 23. The fixing plate 31 is fixedly connected to the support plate 25. A moving rod 33 is slidably connected in the fixing plate 31. A hard spring 32 is arranged on the outer side of the moving rod 33. The hard spring 32 is arranged between the fixing plate 31 and the moving rod 33 to facilitate the downward movement of the support plate 25.

[0024] Workflow: When the device is in operation, it is powered by an external power supply. When the atomized ammonia denitration device is in use, first place the main body 1 of this device in a suitable position, start the main body 1 of the device to make it in a working state. The gas in the gas storage tank 12 is compressed by the compressor 13. The compressed gas and the reducing agent in the reducing agent storage tank 11 enter the turbulator 15 through the connecting pipe 14. The turbulator 15 mixes them and transmits them to the spray gun main pipe 16 through the connecting pipe 14. The atomized ammonia water is sprayed out at high speed through the linear nozzle 17. The spraying angle is between 150° and 160°. A spray gun with a total length of 2.2 m can be selected and enter the inner wall of the cyclone 18 at a distance of 1.5 - 1.7 m. The effective spraying distance is about 2 m. The spraying area of the linear nozzle 17 can cover more than 90% of the circular area of the inner cylinder of the cyclone 18 and react fully with the flue gas in the cyclone 18. At this time, the valve 21 at the connecting pipe 14 at the top of the cyclone 18 can be adjusted to reduce the gas flow rate. At the same time, the fan 22 can be started to drive the air outlet 24 to blow an upwardly inclined wind force in the cyclone 18, further reducing the gas flow rate, prolonging the time for the gas to pass through the cyclone 18, and increasing the mixing effect of the atomized ammonia water and the flue gas. When the air outlet 24 needs to be cleaned after long-term use, the user holds the support plate 25 and moves it downward. The hard spring 32 is in a compressed state, driving the moving rod 33 to move downward at the same time. After moving to a suitable position, the semi-circular connecting piece 23 and the air outlet 24 can be moved downward at an inclined angle until they are taken out. Through the set main body 1 of the device, the atomized ammonia water and the flue gas react fully, improving the utilization rate of ammonia water. Through the set gas flow rate reducing device 2, the gas flow rate in the cyclone 18 can be reduced, and the time for the gas to pass through the cyclone 18 can be prolonged, thereby increasing the mixing effect of ammonia water and gas.

[0025] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection method in the prior art, it will not be elaborated here.

[0026] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An atomized ammonia water denitrification device, comprising a device body (1) for denitrification, characterized in that: The device body (1) comprises a reducing agent storage tank (11), a gas storage tank (12), a compressor (13), a connecting pipe (14), a turbulator (15), a spray gun main pipe (16), a straight-line nozzle (17) and a cyclone (18), wherein the reducing agent storage tank (11) is provided with a gas storage tank (12) on one side, the gas storage tank (12) is connected to the compressor (13) on one side, the compressor (13) is provided with a turbulator (15) on one side, the spray gun main pipe (16) is provided with a straight-line nozzle (17) on one side, one end of the spray gun main pipe (16) is connected to the straight-line nozzle (17), one end of the straight-line nozzle (17) is inserted into the cyclone (18), and the reducing agent storage tank (11), the gas storage tank (12), the compressor (13), the turbulator (15), the cyclone (18) and the spray gun main pipe (16) are connected to the straight-line nozzle (17) at one end. One end of the gun main pipe (16) is connected to a connecting pipe (14); one side of the cyclone barrel (18) is provided with a gas flow rate reducing device (2); the gas flow rate reducing device (2) comprises a valve (21), a fan (22), a connecting piece (23), an air outlet (24) and a support plate (25); a valve (21) for reducing the gas flow rate is provided on the outside of the connecting pipe (14) at the top of the cyclone barrel (18); a hollow connecting piece (23) is tightly fitted on the outside of the conical part of the lower half of the cyclone barrel (18); one side of the connecting piece (23) is connected to the fan (22); the other side of the connecting piece (23) is connected to a plurality of air outlets (24); the bottom of the connecting piece (23) is tightly fitted to a support plate (25) with one end protruding; a limit device (3) is provided below the connecting piece (23).

2. The atomized ammonia denitrification device according to claim 1, characterized in that: The straight-line nozzles (17) are arranged in groups at the spray gun main pipe (16) in an equidistant and staggered manner, and the spray gun main pipe (16) and the turbulator (15) are connected via a connecting pipe (14).

3. The atomized ammonia denitrification device according to claim 1, characterized in that: The connecting piece (23) is arranged in a semi-circular shape, a plurality of the air outlets (24) are arranged to be inclined upward at the same angle, and the protruding portion of the support plate (25) is tightly fitted to the fan (22).

4. The atomized ammonia denitrification device according to claim 1, characterized in that: The limiting device (3) comprises a fixed plate (31), a hard spring (32) and a moving rod (33); the fixed plate (31) and the cyclone barrel (18) are fixedly connected.

5. The atomized ammonia denitrification device according to claim 4, characterized in that: The fixed plate (31) and the support plate (25) are fixedly connected, a moving rod (33) is slidably connected inside the fixed plate (31), a hard spring (32) is provided outside the moving rod (33), and the hard spring (32) is arranged between the fixed plate (31) and the moving rod (33).

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