A microporous atomizing hydrogen peroxide desulfurization tower

Abstract

This utility model relates to the field of flue gas desulfurization technology, specifically a microporous atomizing hydrogen peroxide desulfurization tower, including a desulfurization tower body and a flue gas conveying pipe connected to the top of the desulfurization tower body. One end of the flue gas conveying pipe is connected to an atomizing microporous mechanism. This application uses the atomizing microporous mechanism immersed in a hydrogen peroxide solution, allowing the flue gas to directly react and undergo comprehensive desulfurization upon discharge. This solves the problem of current desulfurization towers that desulfurize flue gas by spraying hydrogen peroxide solution from the top, resulting in dead zones, uneven spraying, and insufficient reaction with the flue gas. This improves the working efficiency of the desulfurization tower. Furthermore, this application uses a circulating desulfurization mechanism to circulate the hydrogen peroxide solution in the desulfurization tower and perform secondary desulfurization of the flue gas. This solves the problem of insufficient sulfur dioxide removal when desulfurizing sulfur-containing flue gas in current desulfurization towers, improving the desulfurization effect and working quality of the desulfurization tower.

Description

Technical Field

[0001] This utility model relates to the field of flue gas desulfurization technology, specifically a microporous atomized hydrogen peroxide desulfurization tower. Background Technology

[0002] A desulfurization tower is a device used for desulfurization of industrial flue gas. It mainly utilizes the strong oxidizing properties of hydrogen peroxide to oxidize and absorb sulfur dioxide in the flue gas, thereby achieving the purpose of desulfurization.

[0003] Currently, desulfurization towers desulfurize flue gas by spraying hydrogen peroxide solution from the top. However, this method results in dead zones and uneven spraying of hydrogen peroxide, leading to incomplete reaction with the flue gas. Consequently, the desulfurization effect of the reaction between the flue gas and the hydrogen peroxide solution is poor, resulting in low working efficiency of the desulfurization tower.

[0004] Furthermore, desulfurization towers typically only perform a single desulfurization operation on sulfur-containing flue gas, resulting in insufficient contact time between the hydrogen peroxide solution and the flue gas. This leads to incomplete removal of sulfur dioxide, resulting in poor desulfurization efficiency and work quality of the desulfurization tower. Utility Model Content

[0005] The purpose of this invention is to provide a microporous atomizing hydrogen peroxide desulfurization tower to solve the technical problems of low working efficiency, poor desulfurization effect and working quality of desulfurization towers.

[0006] The above-mentioned utility model objective is achieved through the following technical solution:

[0007] A microporous atomizing hydrogen peroxide desulfurization tower includes a desulfurization tower body and a flue gas conveying pipe connected to the top of the desulfurization tower body, wherein one end of the flue gas conveying pipe is connected to an atomizing microporous mechanism.

[0008] The atomizing microporous mechanism includes an atomizing disk, the top of which is connected to one end of a flue gas conveying pipe. A dispersing disk is connected inside the atomizing disk, and several atomizing nozzles are connected inside the dispersing disk. The exterior of each of the several atomizing nozzles is connected to the side of the atomizing disk.

[0009] Several atomizing nozzles are arranged in a circular pattern. A spiral flow divider plate is connected inside the desulfurization tower body. Several flow divider holes are opened on the spiral flow divider plate. The spiral flow divider plate is located above the atomizing disc.

[0010] The desulfurization tower body is equipped with a circulating desulfurization mechanism, which includes a guide plate and two circulation pipes. The guide plate is divided into a guide section and a flow guide section, and a connecting section is connected between the guide section and the flow guide section. An installation ring is connected to one end of the guide section and the flow guide section respectively.

[0011] Preferably, the bottom ends of the two circulation pipes are connected to the lower part of the desulfurization tower body, and the upper ends of the circulation pipes are connected to the middle part of the desulfurization tower body.

[0012] Preferably, the desulfurization tower body has two external supports, and a water pump is connected to the top of the supports. One end of the water pump is connected to a circulation pipe.

[0013] Preferably, the upper ends of the two circulation pipes are connected to a flow divider, and the bottom of the flow divider is connected to a plurality of nozzles. The flow divider is positioned above the guide plate.

[0014] Preferably, an exhaust pipe is connected to the upper part of the desulfurization tower body, and a discharge pipe is connected to the lower part of the desulfurization tower body.

[0015] Preferably, a filling pipe is connected to the middle of the desulfurization tower body, and the filling pipe is positioned higher than the guide plate.

[0016] Preferably, the desulfurization tower body is provided with hydrogen peroxide solution, and both the atomizing disc and the spiral diverter are disposed in the hydrogen peroxide solution.

[0017] In summary, the beneficial technical effects of this utility model are as follows:

[0018] 1. This application uses an atomizing microporous mechanism immersed in hydrogen peroxide solution in the desulfurization tower, so that the flue gas can directly react with the hydrogen peroxide solution for comprehensive desulfurization when it is discharged. This achieves the effect of full reaction between flue gas and hydrogen peroxide solution for desulfurization, which solves the problem of dead corners and uneven spraying of hydrogen peroxide solution in the current desulfurization tower for desulfurization, which is not thorough enough. This is conducive to improving the working efficiency of the desulfurization tower.

[0019] 2. This application utilizes a circulating desulfurization mechanism to circulate the hydrogen peroxide solution in the desulfurization tower and perform secondary desulfurization on the flue gas. The circulating flow creates a continuous liquid flow of the hydrogen peroxide solution within the tower, resulting in longer and more thorough contact time with the flue gas, thereby improving the overall sulfur dioxide removal rate. This solves the problem of insufficient sulfur dioxide removal when desulfurizing sulfur-containing flue gas in current desulfurization towers, and is beneficial for improving the desulfurization effect and working quality of the desulfurization tower. Attached Figure Description

[0020] Figure 1 This is a first-person view structural diagram of the entire utility model;

[0021] Figure 2 This is a structural schematic diagram of the entire utility model from a second perspective;

[0022] Figure 3 This is a partial cross-sectional structural schematic diagram of the desulfurization tower body of this utility model;

[0023] Figure 4 This is a schematic diagram of the overall cross-section of this utility model;

[0024] Figure 5 This is a cross-sectional structural schematic diagram of the atomizing disc of this utility model;

[0025] Figure 6 This is a schematic diagram of the circulating desulfurization mechanism of this utility model.

[0026] In the diagram: 1. Desulfurization tower body; 2. Flue gas conveying pipe; 3. Exhaust pipe; 4. Filling pipe; 5. Discharge pipe; 6. Atomizing micro-pore mechanism; 7. Atomizing disc; 8. Dispersion disc; 9. Atomizing nozzle; 10. Spiral flow divider plate; 11. Flow divider hole; 12. Circulating desulfurization mechanism; 13. Guide disc; 14. Guide section; 15. Flow guide section; 16. Connection section; 17. Mounting ring; 18. Support platform; 19. Water pump; 20. Circulation pipe; 21. Flow divider plate; 22. Nozzle. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Please see Figures 1 to 6 A microporous atomizing hydrogen peroxide desulfurization tower includes a desulfurization tower body 1 and a flue gas conveying pipe 2 connected to the top of the desulfurization tower body 1. One end of the flue gas conveying pipe 2 is connected to an atomizing microporous mechanism 6. The flue gas conveying pipe 2 conveys sulfur-containing flue gas through the top of the desulfurization tower body 1 into the tower. Specifically, the flue gas is conveyed through the flue gas conveying pipe 2 to the atomizing microporous mechanism 6. Because the atomizing microporous mechanism 6 is immersed in the hydrogen peroxide solution in the desulfurization tower body 1, the flue gas is dispersed into a large number of tiny bubbles under pressure through the atomizing microporous mechanism 6. These bubbles, because their density is less than that of the liquid, will float upward from the hydrogen peroxide solution in a dispersed state. In this way, the sulfur-containing flue gas can directly react with the hydrogen peroxide solution for comprehensive desulfurization when discharged.

[0029] The atomizing microporous mechanism 6 includes an atomizing disk 7. The top of the atomizing disk 7 is connected to one end of the flue gas conveying pipe 2. A dispersing disk 8 is connected inside the atomizing disk 7. Several atomizing nozzles 9 are connected inside the dispersing disk 8. The outside of the several atomizing nozzles 9 is connected to the side of the atomizing disk 7. The sulfur-containing flue gas is conveyed to the dispersing disk 8 in the atomizing disk 7 through the flue gas conveying pipe 2. At this time, the sulfur-containing flue gas enters the circumferentially distributed atomizing nozzles 9 through the dispersing disk 8, and is discharged into the hydrogen peroxide solution through the atomizing nozzles 9.

[0030] It is important to note that the "atomization" mentioned in this application refers to the dispersion state of the gas. Although strictly speaking, the formation of tiny droplets from a liquid through an atomizing nozzle is typical atomization, in this application, the flue gas is dispersed into a large number of tiny bubbles through the atomizing nozzle 9 immersed in hydrogen peroxide solution. This process of breaking the gas into fine dispersions can also be understood as a dispersion effect similar to "atomization". The purpose is to increase the contact area with the hydrogen peroxide solution and promote the reaction between the sulfur-containing flue gas and the hydrogen peroxide solution. This "atomization" (i.e., bubble formation) of the gas allows the sulfur dioxide in the flue gas to come into more complete contact with the hydrogen peroxide solution, thereby improving the reaction efficiency.

[0031] Several atomizing nozzles 9 are arranged in a circular pattern. A spiral diverter plate 10 is connected inside the desulfurization tower body 1. Several diverter holes 11 are opened on the spiral diverter plate 10. The spiral diverter plate 10 is set above the atomizing disk 7. When the sulfur-containing flue gas is discharged through the atomizing nozzles 9, it will be dispersed into a large number of tiny bubbles. Because these bubbles are less dense than liquids, they will float upward from the hydrogen peroxide solution in a dispersed state. During the floating process, they will be blocked by the spiral diverter plate 10. Thus, the bubbles will be blocked and diverted by the spiral diverter plate 10 as they rise, and will be forced to change their path, increasing the chance of contact with the hydrogen peroxide solution. This will increase the reaction time between the hydrogen peroxide solution and the sulfur-containing flue gas, thereby improving the desulfurization effect.

[0032] It should be further added that the flow diversion holes 11 opened on the spiral flow diversion plate 10 can also allow bubbles to flow through. The flow diversion holes 11 are mainly to prevent bubbles from being blocked by the spiral flow diversion plate 10, forming dead points at the contact point between the inner wall of the desulfurization tower body 1 and the spiral flow diversion plate 10, causing some bubbles to be unable to carry out desulfurization work normally.

[0033] The desulfurization tower body 1 is equipped with a circulating desulfurization mechanism 12. The circulating desulfurization mechanism 12 includes a guide plate 13 and two circulating pipes 20. The guide plate 13 is divided into a guide section 14 and a flow guide section 15. A connecting section 16 is connected between the guide section 14 and the flow guide section 15. An installation ring 17 is connected to one end of the guide section 14 and the flow guide section 15 respectively.

[0034] After the reaction during the bubble rising process, most of the sulfur dioxide in the sulfur-containing flue gas has been absorbed and removed. The remaining flue gas will continue to rise after leaving the hydrogen peroxide solution. During the rising process, it will be guided by the guide part 14 of the guide plate 13, so that the flue gas will move towards the middle when rising. This is mainly to avoid the problem that the flue gas near the inner wall of the desulfurization tower 1 cannot have a secondary and sufficient reaction with the hydrogen peroxide solution sprayed by the nozzle 22 when the flue gas rises.

[0035] Specifically, the guide plate 13 is installed on the inner wall of the desulfurization tower body 1 via the mounting ring 17. It should be further added that the guide section 15 can guide the sprayed hydrogen peroxide solution and the hydrogen peroxide solution injected by the injection pipe 4, so that these hydrogen peroxide solutions can flow normally to the bottom of the desulfurization tower body 1 without being blocked by the guide section 14 and unable to flow normally.

[0036] The bottom ends of the two circulation pipes 20 are connected to the lower part of the desulfurization tower body 1, and the upper ends of the circulation pipes 20 are connected to the middle part of the desulfurization tower body 1.

[0037] The external connection of the desulfurization tower body 1 is two support platforms 18. The top of the support platform 18 is connected to a water pump 19. One end of the water pump 19 is connected to the circulation pipe 20. The hydrogen peroxide solution at the bottom of the desulfurization tower body 1 can be pumped and transported to the upper end of the circulation pipe 20 through the water pump 19. The water pump 19 is a known technology and the technology is very mature at present. Those skilled in the art can and should understand its specific function and structure, so it will not be described in detail here.

[0038] Specifically, the upper end of the circulation pipe 20 delivers hydrogen peroxide solution to the diversion plate 21, and then the nozzle 22 at the bottom of the diversion plate 21 can spray out these hydrogen peroxide solutions. These sprayed hydrogen peroxide solutions will react with the rising flue gas in a secondary reaction to desulfurize the flue gas, which greatly improves the working quality of the desulfurization tower.

[0039] It should be noted that the flue gas after desulfurization will rise to the top of the desulfurization tower 1 and then be discharged through the exhaust pipe 3.

[0040] The upper ends of the two circulation pipes 20 are connected to a flow divider 21, and the bottom of the flow divider 21 is connected to several nozzles 22. The flow divider 21 is located above the guide plate 13.

[0041] The upper part of the desulfurization tower body 1 is connected to the exhaust pipe 3, and the lower part of the desulfurization tower body 1 is connected to the discharge pipe 5.

[0042] A filling pipe 4 is connected to the middle of the desulfurization tower body 1. The filling pipe 4 is positioned higher than the guide plate 13. The hydrogen peroxide solution at the bottom of the desulfurization tower body 1 can be discharged through the discharge pipe 5. The filling pipe 4 is used to fill the hydrogen peroxide solution at the bottom of the desulfurization tower body 1. It should be further noted that the desulfurization tower uses an online concentration monitor to detect the concentration of the hydrogen peroxide solution in real time. When the concentration is lower than the threshold, fresh hydrogen peroxide solution is automatically added to avoid incomplete desulfurization due to insufficient concentration.

[0043] The desulfurization tower body 1 is equipped with a hydrogen peroxide solution. The atomizing plate 7 and the spiral diverter plate 10 are both placed in the hydrogen peroxide solution. The height of the hydrogen peroxide solution is higher than the spiral diverter plate 10 and lower than the guide plate 13.

[0044] The working principle of this utility model is as follows:

[0045] First, the flue gas conveying pipe 2 transports the sulfur-containing flue gas through the top of the desulfurization tower 1 into the tower. Specifically, the flue gas is transported through the flue gas conveying pipe 2 to the atomizing microporous mechanism 6. Since the atomizing microporous mechanism 6 is immersed in the hydrogen peroxide solution in the desulfurization tower 1, the flue gas is dispersed into a large number of tiny bubbles under pressure through the atomizing microporous mechanism 6. Because these bubbles have a density less than that of the liquid, they will float upward from the hydrogen peroxide solution in a dispersed state. In this way, the sulfur-containing flue gas can directly react with the hydrogen peroxide solution for complete desulfurization when it is discharged.

[0046] Secondly, the sulfur-containing flue gas is transported to the dispersion disk 8 in the atomizing disk 7 through the flue gas conveying pipe 2. At this time, the sulfur-containing flue gas enters the circumferentially distributed atomizing nozzles 9 through the dispersion disk 8, and is discharged into the hydrogen peroxide solution through the atomizing nozzles 9. When the sulfur-containing flue gas is discharged through the atomizing nozzles 9, it will disperse into a large number of tiny bubbles. Because these bubbles are less dense than the liquid, they will float upward from the hydrogen peroxide solution in a dispersed state. During the floating process, they will be blocked by the spiral diverting plate 10. Thus, the bubbles will be blocked and diverted by the spiral diverting plate 10 as they rise, and will be forced to change their path, increasing the contact opportunity with the hydrogen peroxide solution. This will increase the reaction time between the hydrogen peroxide solution and the sulfur-containing flue gas, thereby improving the desulfurization effect.

[0047] Then, through the reaction during the bubble rising process, most of the sulfur dioxide in the sulfur-containing flue gas has been absorbed and removed. The remaining flue gas will continue to rise after leaving the hydrogen peroxide solution. During the rise, it will be guided by the guide part 14 of the guide plate 13, so that the flue gas will move towards the middle when rising. This is mainly to avoid the problem that the flue gas near the inner wall of the desulfurization tower 1 cannot fully react with the hydrogen peroxide solution sprayed by the nozzle 22. The hydrogen peroxide solution at the bottom of the desulfurization tower 1 can be drawn from the water pump 19 and transported to the upper end of the circulation pipe 20 through the circulation pipe 20. The upper end of the circulation pipe 20 transports the hydrogen peroxide solution to the diversion plate 21. Then, the nozzle 22 at the bottom of the diversion plate 21 can spray out these hydrogen peroxide solutions. These sprayed hydrogen peroxide solutions will react with the rising flue gas for a second reaction, thereby performing secondary desulfurization of the flue gas, which greatly improves the working quality of the desulfurization tower.

[0048] Finally, the hydrogen peroxide solution at the bottom of the desulfurization tower 1 can be discharged through the discharge pipe 5, and the hydrogen peroxide solution at the bottom of the desulfurization tower 1 can be added through the injection pipe 4. It should be further noted that the desulfurization tower uses an online concentration monitor to detect the concentration of the hydrogen peroxide solution in real time. When the concentration is lower than the threshold, fresh hydrogen peroxide solution is automatically added to avoid incomplete desulfurization due to insufficient concentration.

[0049] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A microporous atomizing hydrogen peroxide desulfurization tower, comprising a desulfurization tower body (1) and a flue gas conveying pipe (2) connected to the top of the desulfurization tower body (1), characterized in that: One end of the flue gas conveying pipe (2) is connected to an atomizing micropore mechanism (6); The atomizing micropore mechanism (6) includes an atomizing disk (7), the top of which is connected to one end of the flue gas conveying pipe (2). A dispersing disk (8) is connected inside the atomizing disk (7), and a plurality of atomizing nozzles (9) are connected inside the dispersing disk (8). The exterior of the plurality of atomizing nozzles (9) is connected to the side of the atomizing disk (7). The plurality of atomizing nozzles (9) are distributed in a circular pattern. A spiral diverter plate (10) is connected inside the desulfurization tower body (1). A plurality of diverter holes (11) are opened on the spiral diverter plate (10). The spiral diverter plate (10) is positioned above the atomizing disk (7). The desulfurization tower body (1) is equipped with a circulating desulfurization mechanism (12). The circulating desulfurization mechanism (12) includes a guide plate (13) and two circulation pipes (20). The guide plate (13) is divided into a guide part (14) and a flow guide part (15). A connecting part (16) is connected between the guide part (14) and the flow guide part (15). An installation ring (17) is connected to one end of the guide part (14) and the flow guide part (15).

2. A micro-porous atomized hydrogen peroxide desulphurization tower as claimed in claim 1, wherein: The bottom ends of the two circulation pipes (20) are connected to the lower part of the desulfurization tower body (1), and the upper end of the circulation pipes (20) is connected to the middle part of the desulfurization tower body (1).

3. A micro-porous atomized hydrogen peroxide desulphurization tower as claimed in claim 1, wherein: The desulfurization tower body (1) has two external supports (18), and a water pump (19) is connected to the top of the supports (18). One end of the water pump (19) is connected to the circulation pipe (20).

4. A micro-porous atomized hydrogen peroxide desulphurization tower as claimed in claim 2, wherein: The upper ends of the two circulation pipes (20) are connected to a flow divider (21), and the bottom of the flow divider (21) is connected to a number of nozzles (22). The flow divider (21) is located above the guide plate (13).

5. A micro-porous atomized hydrogen peroxide desulphurization tower as claimed in claim 1, wherein: The upper part of the desulfurization tower body (1) is connected to an exhaust pipe (3), and the lower part of the desulfurization tower body (1) is connected to an exhaust pipe (5).

6. A micro-porous atomized hydrogen peroxide desulphurization tower as claimed in claim 1, wherein: The desulfurization tower body (1) is connected to a filling pipe (4) in the middle, and the filling pipe (4) is positioned higher than the guide plate (13).

7. A micro-porous atomized hydrogen peroxide desulphurization tower as claimed in claim 1, wherein: The desulfurization tower body (1) is provided with hydrogen peroxide solution, and the atomizing disc (7) and the spiral diverter plate (10) are both provided in the hydrogen peroxide solution.

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