Flue gas desulfurization spray tower device based on liquid ammonia dilution

Abstract

This utility model discloses a flue gas desulfurization spray tower device based on liquid ammonia dilution, belonging to the field of flue gas treatment technology. It includes a tank with a bearing fixedly embedded in the inner top wall. A rotating shaft is fixedly connected to the inner ring of the bearing. A drive motor rotates the rotating shaft and a stirring plate, rapidly and uniformly mixing liquid ammonia and water, significantly improving the dilution efficiency and uniformity of liquid ammonia. A water pump evenly sprays water from the tank through water pipes, a distributor, spray pipes, and spray heads, further promoting the mixing of liquid ammonia and water and ensuring a stable ammonia solution concentration. A concentration sensor monitors the solution concentration inside the tank in real time, providing timely feedback to adjust the amount of liquid ammonia and water added, achieving precise desulfurization. The overall device has a compact structure and reasonable design, effectively improving the efficiency and quality of flue gas desulfurization while reducing environmental pollution caused by insufficient desulfurization, demonstrating good economic and environmental benefits.

Description

Technical Field

[0001] This utility model relates to the field of flue gas treatment technology, specifically a flue gas desulfurization spray tower device based on liquid ammonia dilution. Background Technology

[0002] Among numerous flue gas desulfurization technologies, ammonia desulfurization technology has been widely used in the industrial field due to its advantages such as a desulfurization efficiency of over 95% and the secondary utilization of ammonium sulfate as a byproduct as fertilizer. In particular, the market share of ammonia desulfurization in flue gas treatment technology of large coal-fired power plants has been increasing year by year.

[0003] However, the traditional flue gas desulfurization spray towers that are widely used still have many problems to be solved in actual operation. For example, in terms of the structural design of the spray tower, the layout of the spray device in the traditional spray tower is unreasonable, and the uniformity of the distribution of the spray liquid in the tower is poor. In addition, in the liquid ammonia dilution stage of the traditional flue gas desulfurization spray tower, some companies still use manual stirring. This primitive operation mode has many drawbacks and seriously affects the stable and efficient operation of the desulfurization system. Therefore, those skilled in the art provide a flue gas desulfurization spray tower device based on liquid ammonia dilution to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a flue gas desulfurization spray tower device based on liquid ammonia dilution to solve the problems mentioned in the background art.

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

[0006] A flue gas desulfurization spray tower device based on liquid ammonia dilution includes a tank. A bearing is fixedly embedded in the inner top wall of the tank. A rotating shaft is fixedly connected to the inner ring of the bearing. A stirring plate is fixedly connected to the outer surface of the rotating shaft. A drive motor is mounted on the upper surface of the tank. The output end of the drive motor is connected to one end of the rotating shaft. Two vertical plates are fixedly connected to the upper surface of the tank. A water tank is fixedly connected to the upper surface of the two vertical plates. A water pump is fixedly installed on the inner bottom wall of the water tank. A water inlet is opened on the upper surface of the water tank. A water pipe is fixedly connected to the output end of the water pump. The output end of the water pipe passes through the inner top wall of the tank and extends into the interior of the tank. A set of equally spaced distributors is fixedly connected to the outer surface of the water pipe. A spray pipe is fixedly connected to the outer surface of each distributor. A set of annularly arranged spray heads is fixedly connected to the outer surface of each spray pipe. A concentration sensor is fixedly installed on the inner top wall of the tank.

[0007] As a further embodiment of this utility model: a bracket is fixedly connected to the upper surface of the tank, the bottom surface of the bracket is connected to the upper surface of the drive motor, and a first sealing plug is provided inside the water tank.

[0008] As a further improvement of this utility model: the upper surface of the tank is provided with a feed inlet, and the inside of the feed inlet is provided with a second sealing plug.

[0009] As a further improvement of this utility model: an observation groove is provided on the front of the tank, and a transparent glass plate is fixedly connected to the inner wall of the observation groove.

[0010] As a further embodiment of this utility model: two support plates are fixedly connected to the bottom surface of the tank, and a filter box is fixedly connected to the bottom surface of the two support plates. A first discharge pipe is fixedly connected to the bottom surface of the tank, and a first valve is fixedly connected to the outer surface of the first discharge pipe.

[0011] As a further embodiment of this utility model: a filter screen is fixedly connected to the inner wall of the filter box, a second discharge pipe is fixedly connected to the bottom surface of the filter box, and a second valve is fixedly connected to the outer surface of the second discharge pipe.

[0012] As a further improvement of this utility model: two sets of support legs are fixedly connected to the bottom surface of the tank, and a base plate is fixedly connected to the bottom surface of the two sets of support legs.

[0013] As a further embodiment of this utility model: a fixing plate is fixedly connected to the upper surface of the base plate, a control box is fixedly installed on the front of the fixing plate, and a display screen is fixedly installed on the front of the control box.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This flue gas desulfurization spray tower device based on liquid ammonia dilution uses a drive motor to rotate the shaft and stirring plate, which can quickly and evenly mix liquid ammonia and water, significantly improving the dilution efficiency and uniformity of liquid ammonia. The water pump sprays water from the tank evenly through water pipes, distributors, spray pipes, and spray heads, further promoting the mixing of liquid ammonia and water and ensuring a stable concentration of ammonia solution. A concentration sensor monitors the concentration of the solution inside the tank in real time and can promptly provide feedback on the concentration data to adjust the amount of liquid ammonia and water added, achieving precise desulfurization. The overall device has a compact structure and reasonable design, effectively improving the efficiency and quality of flue gas desulfurization, while reducing environmental pollution caused by insufficient desulfurization, and has good economic and environmental benefits. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a flue gas desulfurization spray tower device based on liquid ammonia dilution;

[0017] Figure 2 A side view of a flue gas desulfurization spray tower device based on liquid ammonia dilution;

[0018] Figure 3 This is a front sectional view of a flue gas desulfurization spray tower device based on liquid ammonia dilution;

[0019] Figure 4 This is a top view of a flue gas desulfurization spray tower device based on liquid ammonia dilution;

[0020] Figure 5 This is a top sectional view of a flue gas desulfurization spray tower device based on liquid ammonia dilution.

[0021] In the diagram: 1. Tank body; 2. Bearing; 3. Drive motor; 4. Rotating shaft; 5. Stirring plate; 6. Vertical plate; 7. Water tank; 8. Water pump; 9. Inlet; 10. Water pipe; 11. Diverter; 12. Transparent glass plate; 13. Spray pipe; 14. Spray head; 15. Concentration sensor; 16. Support; 17. Feed inlet; 18. Second sealing plug; 19. First sealing plug; 20. Support plate; 21. First discharge pipe; 22. First valve; 23. Filter box; 24. Filter screen; 25. Second discharge pipe; 26. Second valve; 27. Support leg; 28. Base plate; 29. ​​Fixing plate; 30. Control box; 31. Display screen; 32. Observation slot. Detailed Implementation

[0022] Please see Figures 1-5In this embodiment of the present invention, a flue gas desulfurization spray tower device based on liquid ammonia dilution includes a tank 1. A bearing 2 is fixedly embedded in the inner top wall of the tank 1. A rotating shaft 4 is fixedly connected to the inner ring of the bearing 2. A stirring plate 5 is fixedly connected to the outer surface of the rotating shaft 4. A drive motor 3 is provided on the upper surface of the tank 1. The output end of the drive motor 3 is connected to one end of the rotating shaft 4. The drive motor 3 drives the rotating shaft 4 and the stirring plate 5 to rotate, which can quickly and evenly stir and mix liquid ammonia and water, significantly improving the dilution efficiency and uniformity of liquid ammonia. Two vertical plates 6 are fixedly connected to the upper surface of the tank 1. A water tank 7 is fixedly connected to the upper surface of the two vertical plates 6. A water pump 8 is fixedly installed on the inner bottom wall of the water tank 7. A water inlet 9 is opened on the upper surface of the water tank 7. A water pipe 10 is fixedly connected to the output end of the water pump 8. The output end of the water pipe 10 penetrates the inner top wall of the tank 1 and extends to the inner top wall of the tank 1. Inside, a set of equally spaced diverters 11 are fixedly connected to the outer surface of the water pipe 10. Each diverter 11 is fixedly connected to the outer surface of a spray pipe 13, and each spray pipe 13 is fixedly connected to the outer surface of a set of annularly arranged spray heads 14. A concentration sensor 15 is fixedly installed on the inner top wall of the tank 1. The water pump 8 sprays water from the water tank 7 evenly through the water pipe 10, diverters 11, spray pipes 13, and spray heads 14 to further promote the mixing of liquid ammonia and water, ensuring a stable concentration of the ammonia solution. The concentration sensor 15 monitors the concentration of the solution inside the tank 1 in real time and can promptly provide feedback on the concentration data so as to adjust the amount of liquid ammonia and water added, thereby achieving precise desulfurization. The overall device has a compact structure and reasonable design, effectively improving the efficiency and quality of flue gas desulfurization, reducing operating costs, and reducing environmental pollution caused by insufficient desulfurization, thus achieving good economic and environmental benefits.

[0023] A bracket 16 is fixedly connected to the upper surface of the tank body 1. The bottom surface of the bracket 16 is connected to the upper surface of the drive motor 3. A first sealing plug 19 is provided inside the water tank 7. A feed inlet 17 is opened on the upper surface of the tank body 1. A second sealing plug 18 is provided inside the feed inlet 17. An observation slot 32 is opened on the front of the tank body 1. A transparent glass plate 12 is fixedly connected to the inner wall of the observation slot 32. The bracket 16 on the upper surface of the tank body 1 stably supports the drive motor 3, ensuring stable operation of the stirring. The design of the feed inlet 17 and the sealing plug facilitates the addition and sealing of materials. The observation slot 32, together with the transparent glass plate 12, allows for real-time observation of the internal situation. The coordinated action of all structures makes the device more efficient to operate, more convenient to operate, and more intuitive to maintain.

[0024] Two support plates 20 are fixedly connected to the bottom surface of the tank body 1. A filter box 23 is fixedly connected to the bottom surface of the two support plates 20. A first discharge pipe 21 is fixedly connected to the bottom surface of the tank body 1. A first valve 22 is fixedly connected to the outer surface of the first discharge pipe 21. A filter screen 24 is fixedly connected to the inner wall of the filter box 23. A second discharge pipe 25 is fixedly connected to the bottom surface of the filter box 23. A second valve 26 is fixedly connected to the outer surface of the second discharge pipe 25. Two sets of support legs 27 are fixedly connected to the bottom surface of the tank body 1. A base plate 28 is fixedly connected to the bottom surface of the two sets of support legs 27. A fixing plate 29 is fixedly connected to the upper surface of the base plate 28. A control box 30 is fixedly installed on the front of the fixing plate 29. A display screen 31 is fixedly installed on the front of the control box 30. The bottom support plate 20 and support legs 27 of the tank body 1 form a stable support device, which, together with the base plate 28, enhances stability. The arrangement of the first discharge pipe 21, filter box 23 and filter screen 24, and second discharge pipe 25 enables the filtration and orderly discharge of impurities in the ammonia solution. The control box 30 and display screen 31 facilitate real-time monitoring and control. All components work together to ensure stable operation, precise control, and efficient filtration of the device.

[0025] The working principle of this utility model is as follows: First, the operator adds liquid ammonia by opening the second sealing plug 18 through the feed inlet 17 and injecting water into the water tank 7 by opening the first sealing plug 19 through the water inlet 9. Then, the drive motor 3 is started to drive the rotating shaft 4 and the stirring plate 5 to rotate and stir the liquid ammonia. Subsequently, the water pump 8 draws water out of the water tank 7 and sprays it evenly into the tank 1 through the water pipe 10, the distributor 11, the spray pipe 13 and the spray head 14 to promote the mixing of liquid ammonia and water. At this time, the concentration sensor 15 monitors the concentration of the solution in the tank 1 in real time and transmits the data to the control box 30 and displays it on the display screen 31. The operator can adjust the amount of liquid ammonia and water added accordingly. At the same time, the transparent glass plate 12 at the observation tank 32 facilitates the observation of the situation inside the tank. Finally, the mixed ammonia solution flows into the filter box 23 through the first discharge pipe 21 under the control of the first valve 22. After filtering impurities through the filter screen 24, it is discharged through the second discharge pipe 25 under the control of the second valve 26 for flue gas desulfurization.

[0026] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalent elements of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A flue gas desulfurization spray tower device based on liquid ammonia dilution, characterized by, The system includes a tank (1), with a bearing (2) fixedly embedded in the inner top wall of the tank (1). A rotating shaft (4) is fixedly connected to the inner ring of the bearing (2). A stirring plate (5) is fixedly connected to the outer surface of the rotating shaft (4). A drive motor (3) is provided on the upper surface of the tank (1). The output end of the drive motor (3) is connected to one end of the rotating shaft (4). Two vertical plates (6) are fixedly connected to the upper surface of the tank (1). A water tank (7) is fixedly connected to the upper surface of the two vertical plates (6). A water pump (8) is fixedly installed on the inner bottom wall of the water tank (7). (7) has an inlet (9) on its upper surface. The output end of the water pump (8) is fixedly connected to a water pipe (10). The output end of the water pipe (10) passes through the inner top wall of the tank (1) and extends into the interior of the tank (1). The outer surface of the water pipe (10) is fixedly connected to a set of equally spaced diverters (11). The outer surface of each diverter (11) is fixedly connected to a spray pipe (13). The outer surface of each spray pipe (13) is fixedly connected to a set of annularly arranged spray heads (14). The inner top wall of the tank (1) is fixedly installed with a concentration sensor (15).

2. The flue gas desulfurization spray tower device based on liquid ammonia dilution according to claim 1, characterized in that, A bracket (16) is fixedly connected to the upper surface of the tank (1), and the bottom surface of the bracket (16) is connected to the upper surface of the drive motor (3). A first sealing plug (19) is provided inside the water tank (7).

3. The flue gas desulfurization spray tower device based on liquid ammonia dilution according to claim 1, characterized in that, The upper surface of the tank (1) is provided with a feed inlet (17), and the inside of the feed inlet (17) is provided with a second sealing plug (18).

4. The flue gas desulfurization spray tower device based on liquid ammonia dilution according to claim 1, characterized in that, The tank (1) has an observation slot (32) on the front, and a transparent glass plate (12) is fixedly connected to the inner wall of the observation slot (32).

5. The flue gas desulfurization spray tower device based on liquid ammonia dilution according to claim 1, characterized in that, The bottom surface of the tank (1) is fixedly connected to two support plates (20), and the bottom surfaces of the two support plates (20) are fixedly connected to a filter box (23). The bottom surface of the tank (1) is fixedly connected to a first discharge pipe (21), and the outer surface of the first discharge pipe (21) is fixedly connected to a first valve (22).

6. The flue gas desulfurization spray tower device based on liquid ammonia dilution according to claim 5, characterized in that, The filter box (23) is fixedly connected to the inner wall of the filter screen (24), and the bottom surface of the filter box (23) is fixedly connected to the second discharge pipe (25). The outer surface of the second discharge pipe (25) is fixedly connected to the second valve (26).

7. The flue gas desulfurization spray tower device based on liquid ammonia dilution according to claim 1, characterized in that, The bottom surface of the tank (1) is fixedly connected to two sets of support legs (27), and the bottom surfaces of the two sets of support legs (27) are fixedly connected to a base plate (28).

8. The flue gas desulfurization spray tower device based on liquid ammonia dilution according to claim 7, characterized in that, A fixing plate (29) is fixedly connected to the upper surface of the base plate (28), and a control box (30) is fixedly installed on the front of the fixing plate (29). A display screen (31) is fixedly installed on the front of the control box (30).

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