Flue gas purification device for wet desulphurization

Abstract

The utility model provides a flue gas purification device for wet desulphurization, which comprises an absorption tower, the absorption tower comprises a gas inlet and a gas outlet, one side of the absorption tower is provided with two first water delivery pipes, and the two first water delivery pipes are correspondingly arranged up and down. Through the permutation and combination effects of the plurality of first water pipes, the second water pipes and the spray heads, the internal flue gas can be subjected to multi-directional, multi-angle and multi-layer crossed spraying during spraying work, so that the spraying range is widened, the desulfurization working efficiency is enhanced, and meanwhile, the desulfurization efficiency is improved. Through cooperation of the servo motor, the connecting shaft and the negative-pressure fan, the servo motor is driven to drive the negative-pressure fan to rotate and generate air pressure difference, part of flue gas on the inner wall of the absorption tower can be gathered in the center, contact between the flue gas and the inner wall of the absorption tower is reduced, the possibility that the inner wall of the absorption tower is corroded is reduced, and therefore the service life of the device is prolonged; the working efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of flue gas purification equipment, and more specifically, it relates to a flue gas purification device for wet desulfurization. Background Technology

[0002] With the rapid development of industry, the emission of large amounts of sulfur-containing flue gas has caused serious harm to the environment and human health. Among the many desulfurization technologies, wet desulfurization is widely used in flue gas purification in industries such as power, chemical, and metallurgy due to its advantages such as high desulfurization efficiency and strong reliability.

[0003] With increasingly stringent environmental protection requirements, wet desulfurization technology has gradually emerged. Early wet desulfurization devices had certain limitations in structure and function. Regarding the absorption tower, traditional spray absorption towers had simple nozzle designs, resulting in large and unevenly distributed droplets from the spray liquid. This led to limited gas-liquid contact area and insufficient spray range, causing some flue gas to be discharged directly without being sprayed, reducing desulfurization efficiency. Furthermore, as the flue gas rises within the absorption tower, excessive gas rises along the inner wall, which, over time, can damage or corrode the inner wall, thus affecting the overall efficiency of the system.

[0004] Therefore, in view of this, we will study and improve the existing structure and its shortcomings, and provide a flue gas purification device for wet desulfurization, in order to achieve a more practical value. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a flue gas purification device for wet desulfurization, which is achieved by the following specific technical means:

[0006] A flue gas purification device for wet desulfurization includes an absorption tower, which has an inlet and an outlet. Two first water supply pipes are installed on one side of the absorption tower, and the two first water supply pipes are arranged vertically opposite each other. Second water supply pipes are provided on both sides of the two first water supply pipes. One end of each of the multiple first and second water supply pipes passes through the absorption tower and is fixed to one side of its inner wall. Spray nozzles are installed below the multiple first and second water supply pipes. A filtration mechanism is provided above the inner wall of the absorption tower.

[0007] Preferably, the filtration mechanism includes a mounting base, which is installed on the inner top of the absorption tower. Connecting plates are installed on both sides of the inner wall of the mounting base. A fixed housing is installed on the upper surface of the connecting plates. A servo motor is installed on the upper part of the inner wall of the fixed housing. A connecting shaft is installed at the output end of the servo motor. A negative pressure fan is installed at the bottom of the connecting shaft.

[0008] Preferably, the filtration mechanism further includes a first filter plate, which is embedded in the upper surface of the mounting base, and a second filter plate is installed on the top of the absorption tower. The upper surfaces of both the first and second filter plates are provided with multiple filter holes.

[0009] Preferably, the nozzles below the two first water supply pipes are both vertically downward, and the nozzles below the multiple second water supply pipes are respectively inclined towards the inner wall of the absorption tower.

[0010] Preferably, the upper surface of the absorption tower is provided with a through groove, the side of the second filter plate is fixed to the inner wall of the through groove, and the through groove is located directly above the mounting base.

[0011] Preferably, a fixing ring is installed on the outer side of the mounting base, and two bolts are threaded together on the fixing ring and the inner wall of the absorption tower.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model, through the arrangement and combination of multiple first water supply pipes, second water supply pipes, and nozzles, enables multi-directional, multi-angle, and multi-layer cross-spraying of the internal flue gas during spraying operations, thereby increasing the spraying range and enhancing desulfurization efficiency. Simultaneously, through the coordinated action of a servo motor, connecting shaft, and negative pressure fan, the servo motor drives the negative pressure fan to rotate and generate a pressure difference, which can concentrate some of the flue gas on the inner wall of the absorption tower at the center, reducing the contact between the flue gas and the inner wall of the absorption tower, reducing the possibility of corrosion of the inner wall of the absorption tower, thereby extending the life of the device and improving working efficiency.

[0014] 2. This utility model, through the combined action of the first filter plate, the second filter plate, and the through groove, plus the action of the negative pressure fan, can draw part of the flue gas into the through groove through the first filter plate, and finally discharge it through the second filter plate. Moreover, during discharge, it is filtered again through the filter holes on the first and second filter plates, and the quality of the discharged flue gas is further purified. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the flue gas purification device for wet desulfurization according to this utility model.

[0016] Figure 2 This is a schematic diagram of the first and second water supply pipes of the flue gas purification device for wet desulfurization according to this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the first filter plate and the second filter plate of this utility model.

[0018] Figure 4This is a partial cross-sectional structural diagram of the present invention.

[0019] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0020] 1. Absorption tower; 2. Air inlet; 3. Air outlet; 4. First water supply pipe; 5. Second water supply pipe; 6. Nozzle; 7. Second filter plate; 8. Through groove; 9. Mounting base; 10. Connecting plate; 11. Fixed housing; 12. Servo motor; 13. Connecting shaft; 14. Negative pressure fan; 15. Fixing ring; 16. Bolt; 17. First filter plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example:

[0023] As attached Figure 1 To be continued Figure 4 As shown:

[0024] This utility model provides a flue gas purification device for wet desulfurization, including an absorption tower 1. The absorption tower 1 includes an inlet 2 and an outlet 3. Two first water supply pipes 4 are installed on one side of the absorption tower 1, and the two first water supply pipes 4 are arranged vertically. Second water supply pipes 5 are arranged on both sides of the two first water supply pipes 4. One end of each of the multiple first water supply pipes 4 and second water supply pipes 5 passes through the absorption tower 1 and is fixed to one side of its inner wall. Spray nozzles 6 are installed below the multiple first water supply pipes 4 and second water supply pipes 5. A filter mechanism is arranged above the inner wall of the absorption tower 1. Through the arrangement and combination of multiple first water supply pipes 4, second water supply pipes 5 and spray nozzles 6, the internal flue gas can be cross-sprayed in multiple directions, angles and layers during spraying, which improves the spraying range and enhances the desulfurization efficiency.

[0025] The filtration mechanism includes a mounting base 9, which is installed on the inner top of the absorption tower 1. Connecting plates 10 are installed on both sides of the inner wall of the mounting base 9. A fixed housing 11 is installed on the upper surface of the connecting plates 10. A servo motor 12 is installed on the upper part of the inner wall of the fixed housing 11. A connecting shaft 13 is installed at the output end of the servo motor 12. A negative pressure fan 14 is installed at the bottom of the connecting shaft 13. Through the coordinated action of the servo motor 12, the connecting shaft 13, and the negative pressure fan 14, the servo motor 12 drives the negative pressure fan 14 to rotate and generate a pressure difference. This can concentrate some of the flue gas on the inner wall of the absorption tower 1 at the center, reducing the contact between the flue gas and the inner wall of the absorption tower 1, reducing the possibility of corrosion of the inner wall of the absorption tower 1, thereby extending the life of the device and improving working efficiency.

[0026] The filtration mechanism also includes a first filter plate 17, which is embedded in the upper surface of the mounting base 9. A second filter plate 7 is installed on the top of the absorption tower 1. Both the first filter plate 17 and the second filter plate 7 have multiple filter holes on their upper surfaces. Through the combined action of the first filter plate 17, the second filter plate 7, and the through groove 8, plus the action of the negative pressure fan 14, some of the flue gas can be drawn into the through groove 8 through the first filter plate 17 and finally discharged through the second filter plate 7. When discharged, the flue gas is filtered again through the filter holes on the first filter plate 17 and the second filter plate 7, and the quality of the discharged flue gas is further purified.

[0027] Among them, the nozzles 6 below the two first water supply pipes 4 are all set vertically downward, and the nozzles 6 below the multiple second water supply pipes 5 are respectively set inclined towards the inner wall of the absorption tower 1. By setting the nozzles 6 in both vertical and inclined arrangements, cross spraying can be carried out during spraying, increasing the contact area with flue gas and improving the desulfurization efficiency.

[0028] The upper surface of the absorption tower 1 is provided with a through groove 8, the side of the second filter plate 7 is fixed to the inner wall of the through groove 8, and the through groove 8 is located directly above the mounting base 9.

[0029] The mounting base 9 is equipped with a fixing ring 15 on its outer side. The fixing ring 15 and the inner wall of the absorption tower 1 are threaded together with two bolts 16. The stability of the mounting base 9 can be improved through the cooperation of the bolts 16 and the fixing ring 15.

[0030] The working principle of this embodiment is as follows: Sulfur-containing flue gas enters the absorption tower 1 through the inlet 2. Two first water pipes 4, positioned vertically on one side of the absorption tower 1, and two second water pipes 5 on both sides, are equipped with nozzles 6 below them. It should be noted that the nozzles 6 below the first water pipes 4 are vertically downwards, while the nozzles 6 below the second water pipes 5 are inclined towards the inner wall of the absorption tower 1. This combination of vertical and inclined spraying creates a cross-spraying effect, providing multi-directional, multi-angle, and multi-layered spraying of the internal flue gas, increasing the contact area with the flue gas, and allowing the sulfur to fully react with the spray liquid to improve desulfurization efficiency. The filter mechanism installed on the top mounting base 9 inside the absorption tower 1 is activated by the servo motor 12, which drives the filter via the connecting shaft 13. The rotating fan 14 generates a pressure difference, which gathers some of the flue gas on the inner wall of the absorption tower 1 to the center, reducing the contact between the flue gas and the inner wall, reducing the possibility of corrosion, thus extending the life of the device and improving efficiency. At the same time, under the suction of the negative pressure fan 14, some of the flue gas enters the through groove 8 located directly above the mounting base 9 through multiple filter holes of the first filter plate 17 installed on the upper surface of the mounting base 9. It should be noted that the through groove 8 is on the upper surface of the absorption tower 1 and the side of the second filter plate 7 is fixed to the inner wall of the through groove 8. The flue gas is then discharged through the top second filter plate 7. During the process, the flue gas is filtered twice through filter holes, which further purifies the quality of the discharged flue gas. The remaining flue gas is discharged normally from the outlet 3.

[0031] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A flue gas purification device for wet desulfurization, comprising an absorption tower (1), characterized in that: The absorption tower (1) includes an air inlet (2) and an air outlet (3). Two first water supply pipes (4) are installed on one side of the absorption tower (1). The two first water supply pipes (4) are arranged vertically and vertically. A second water supply pipe (5) is provided on both sides of the two first water supply pipes (4). One end of the multiple first water supply pipes (4) and the second water supply pipes (5) penetrates the absorption tower (1) and is fixed to one side of its inner wall. A nozzle (6) is installed below the multiple first water supply pipes (4) and the second water supply pipes (5). A filter mechanism is provided above the inner wall of the absorption tower (1).

2. The flue gas purification device for wet desulfurization as described in claim 1, characterized in that: The filtration mechanism includes a mounting base (9), which is installed on the inner top of the absorption tower (1). A connecting plate (10) is installed on both sides of the inner wall of the mounting base (9). A fixed housing (11) is installed on the upper surface of the connecting plate (10). A servo motor (12) is installed on the upper part of the inner wall of the fixed housing (11). A connecting shaft (13) is installed at the output end of the servo motor (12). A negative pressure fan (14) is installed at the bottom of the connecting shaft (13).

3. The flue gas purification device for wet desulfurization as described in claim 2, characterized in that: The filtration mechanism also includes a first filter plate (17), which is embedded in the upper surface of the mounting base (9). A second filter plate (7) is installed on the top of the absorption tower (1). The upper surfaces of the first filter plate (17) and the second filter plate (7) are provided with multiple filter holes.

4. The flue gas purification device for wet desulfurization as described in claim 1, characterized in that: The nozzles (6) below the two first water supply pipes (4) are both set vertically downwards, and the nozzles (6) below the multiple second water supply pipes (5) are respectively set inclined towards the inner wall of the absorption tower (1).

5. The flue gas purification device for wet desulfurization as described in claim 3, characterized in that: The upper surface of the absorption tower (1) is provided with a through groove (8), the side of the second filter plate (7) is fixed to the inner wall of the through groove (8), and the through groove (8) is located directly above the mounting base (9).

6. The flue gas purification device for wet desulfurization as described in claim 2, characterized in that: A fixing ring (15) is installed on the outside of the mounting base (9), and two bolts (16) are threaded together on the inner wall of the fixing ring (15) and the absorption tower (1).

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