Flue gas desulfurization and denitrification process device

Abstract

The utility model relates to the technical field of flue gas desulfurization and denitrification, particularly relates to a flue gas desulfurization and denitrification process device, which can cool and dedust flue gas before desulfurization and denitrification, avoids the influence of subsequent flue gas desulfurization and denitrification, makes flue gas and desulfurization and denitrification solution contact more uniform and sufficient, improves the desulfurization and denitrification treatment effect of flue gas, and is more practical, including bottom plate, characterized by, the bottom plate top end left side is fixedly connected with the water storage tank, the bottom plate top end middle is fixedly connected with the flue gas treatment box, the bottom plate top end right side is fixedly connected with the liquid storage tank, is provided with the air inlet component between water storage tank and flue gas treatment box for conveying flue gas, is provided with the sprayer between flue gas treatment box and liquid storage tank for spraying desulfurization and denitrification solution.

Description

Technical Field

[0001] This utility model relates to the technical field of flue gas desulfurization and denitrification, and in particular to a flue gas desulfurization and denitrification process device. Background Technology

[0002] Flue gas desulfurization and denitrification devices are used when treating flue gas, mainly to remove nitrogen oxides and sulfur oxides from the flue gas. Existing flue gas desulfurization and denitrification devices, such as the flue gas desulfurization and denitrification device with a cleaning mechanism disclosed in the utility model patent with patent publication number CN218795029U, have certain drawbacks in use. They cannot cool and remove dust from the flue gas before desulfurization and denitrification, and the contact between the flue gas and the desulfurization and denitrification solution is insufficient, resulting in poor desulfurization and denitrification treatment effect and insufficient practicality. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a flue gas desulfurization and denitrification process device that can cool and remove dust from flue gas before desulfurization and denitrification, avoid affecting the subsequent desulfurization and denitrification of flue gas, make the contact between flue gas and desulfurization and denitrification solution more uniform and sufficient, improve the desulfurization and denitrification treatment effect of flue gas, and has higher practicality.

[0004] Technical solution

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flue gas desulfurization and denitrification process device, comprising a base plate, an air inlet assembly, and a sprayer. A water storage tank is fixedly connected to the left side of the top of the base plate, a flue gas treatment box is fixedly connected to the middle of the top of the base plate, and a liquid storage tank is fixedly connected to the right side of the top of the base plate. The air inlet assembly includes an air inlet bend and a guide bend. The air inlet bend is fixedly installed inside the left side of the water storage tank. The input end of the air inlet bend extends from the left end of the water storage tank, and the output end of the air inlet bend is fixedly connected to an E-shaped pipe. The right end of the E-shaped pipe is fixedly connected to the inner wall of the right side of the water storage tank. Multiple sets of air inlets are equidistantly opened at the bottom of the E-shaped pipe. An air outlet is opened at the right end of the water storage tank. The guide bend is fixedly installed inside the left side of the flue gas treatment box, and the input end of the guide bend is fixedly connected to the air outlet. The output end of the guide bend is fixedly connected to a flow equalization cylinder. Air outlets are evenly opened on the outer wall of the flow equalization cylinder, and the bottom of the flow equalization cylinder... The sprayer is fixedly connected to the center of the bottom of the flue gas treatment box. The sprayer includes a high-pressure water pump, which is fixedly installed on the top of the base plate and located between the flue gas treatment box and the liquid storage tank. The input end of the high-pressure water pump is fixedly connected to a liquid extraction pipe, and the right end of the liquid extraction pipe is fixedly connected to the inside of the liquid storage tank. A liquid extraction valve is installed on the liquid extraction pipe. The output end of the high-pressure water pump is fixedly connected to a conveying bend pipe, which is fixedly installed on the upper right side of the flue gas treatment box and extends into the inside of the flue gas treatment box. The upper left side of the conveying bend pipe is fixedly connected to a diverter pipe, which is fixedly installed on the flue gas treatment box. The output end of the conveying bend pipe is fixedly connected to a spray plate, which is coaxial with the flue gas treatment box. The output end of the diverter pipe is fixedly connected to a spiral spray plate, which is fixedly connected to the inner wall of the flue gas treatment box. Multiple sets of atomizing nozzles are evenly fixedly connected to the bottom of both the spray plate and the spiral spray plate.

[0006] Preferably, a demister is fixedly connected to the upper side inside the flue gas treatment box, an exhaust pipe is fixedly connected to the top of the flue gas treatment box, a chimney hood is fixedly connected to the top of the exhaust pipe, a drain pipe is fixedly connected to the lower front side of the flue gas treatment box, and a drain valve is installed on the drain pipe.

[0007] Preferably, the water tank has a rotating cover at the top and a thermometer embedded at the front. A drain pipe is fixedly connected to the lower front of the water tank, and a drain valve is provided on the drain pipe.

[0008] Preferably, the top rotating cover of the liquid storage tank is equipped with a liquid storage cap, the right end of the liquid storage tank has an opening, and the front end of the liquid storage tank is equipped with a liquid level mirror.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: During use, flue gas enters the water storage tank through the inlet bend and E-shaped pipe. The water in the storage tank cools and removes dust from the flue gas. Then, the flue gas enters the flue gas treatment box through the guide bend and flow equalization cylinder. The solution at the bottom of the flue gas treatment box performs desulfurization and denitrification treatment on the flue gas. Simultaneously, a high-pressure water pump is activated, which extracts the solution from the storage tank and delivers it to the spray plate and spiral spray plate through the conveying bend and diversion pipe. The solution is then evenly atomized at the bottom of the spray plate and spiral spray plate. The nozzles atomize and spray the solution. Guided by the spiral spray disc, the flue gas will spiral upward, ensuring that the sprayed atomized solution comes into full and uniform contact with the flue gas. During the upward process, the flue gas continues to mix with the solution, thus continuously treating the flue gas for desulfurization and denitrification. In this overall coordination, the flue gas can be cooled and dust removed before desulfurization and denitrification. By using atomizing nozzles spirally distributed on the spiral spray disc and atomizing nozzles at the bottom of the spray disc to spray the solution, the desulfurization and denitrification treatment effect of the flue gas is improved, enhancing its practicality. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the isometric cross-sectional structure of this utility model;

[0012] Figure 3 This is a partial bottom-view axonometric structural schematic diagram of this utility model;

[0013] Figure 4 This is an isometric structural diagram of the air guide bend and the flow equalization cylinder connected in this utility model;

[0014] Figure 5 This is a schematic diagram of the bottom isometric structure of the E-shaped tube in this utility model;

[0015] The attached diagram shows the following components: 1. Base plate; 2. Water tank; 3. Flue gas treatment box; 4. Liquid storage tank; 5. Air inlet assembly; 6. Sprayer; 7. Air inlet bend; 8. E-shaped pipe; 9. Air inlet hole; 10. Air guide bend; 11. Flow equalization cylinder; 12. Air outlet hole; 13. High-pressure water pump; 14. Liquid extraction pipe; 15. Liquid extraction valve; 16. Conveying bend; 17. Diverter pipe; 18. Spray plate; 19. Spiral spray plate; 20. Atomizing nozzle; 21. Opening; 22. Demister; 23. Exhaust pipe; 24. Chimney hood; 25. Liquid drain pipe; 26. Liquid drain valve; 27. Water tank cover; 28. Thermometer; 29. ​​Drain pipe; 30. Drain valve; 31. Liquid storage cover; 32. Liquid level mirror. Detailed Implementation

[0016] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0017] Example

[0018] Please see Figures 1-5This utility model discloses a flue gas desulfurization and denitrification process device, comprising a base plate 1, an inlet bend 7, a guide bend 10, and a high-pressure water pump 13. A water storage tank 2 is fixedly connected to the top left side of the base plate 1, a flue gas treatment box 3 is fixedly connected to the top middle of the base plate 1, and a liquid storage tank 4 is fixedly connected to the top right side of the base plate 1. The inlet bend 7 is fixedly installed inside the left side of the water storage tank 2, with its input end extending from the left end of the water storage tank 2, and its output end fixedly connected to an E-shaped pipe 8. The right end of the E-shaped tube 8 is fixedly connected to the inner wall of the right side of the water storage tank 2. Multiple sets of air inlets 9 are equidistantly spaced at the bottom of the E-shaped tube 8. An air outlet is provided at the right end of the water storage tank 2. The air guide bend 10 is fixedly installed inside the left side of the flue gas treatment box 3, with its input end fixedly connected to the air outlet. The output end of the air guide bend 10 is fixedly connected to a flow equalization cylinder 11. Air outlets 12 are evenly spaced on the outer wall of the flow equalization cylinder 11, and the bottom end of the flow equalization cylinder 11 is fixedly connected to the center of the bottom of the inside of the flue gas treatment box 3. A high-pressure water pump 13 is fixedly installed at the top of the base plate 1, located between the flue gas treatment box 3 and the liquid storage tank 4. A liquid extraction pipe 14 is fixedly connected to the input end of the high-pressure water pump 13, and the right end of the liquid extraction pipe 14 is fixedly connected to the inside of the liquid storage tank 4. A liquid extraction valve 15 is installed on the liquid extraction pipe 14. A conveying bend 16 is fixedly connected to the output end of the high-pressure water pump 13, and the conveying bend 16 is fixedly installed on the upper right side of the flue gas treatment box 3, with its output end extending into the flue gas treatment box. Inside the flue gas treatment box 3, a diversion pipe 17 is fixedly connected to the upper left side of the conveying bend 16. The diversion pipe 17 is fixedly installed on the flue gas treatment box 3. A spray plate 18 is fixedly connected to the output end of the conveying bend 16. The spray plate 18 is coaxial with the flue gas treatment box 3. A spiral spray plate 19 is fixedly connected to the output end of the diversion pipe 17. The spiral spray plate 19 is fixedly connected to the inner wall of the flue gas treatment box 3. Multiple sets of atomizing nozzles 20 are evenly fixedly connected to the bottom of both the spray plate 18 and the spiral spray plate 19.In operation, flue gas enters the water storage tank 2 through the inlet bend 7 and E-shaped pipe 8. The water in the water storage tank 2 cools and removes dust from the flue gas. Then, the flue gas enters the flue gas treatment box 3 through the guide bend 10 and flow equalization cylinder 11. The flue gas undergoes desulfurization and denitrification treatment through the solution at the bottom of the flue gas treatment box 3. Simultaneously, the high-pressure water pump 13 is activated, drawing the solution from the liquid storage tank 4 and delivering it through the conveying bend 16 and diversion pipe 17 to the spray plate 18 and spiral spray plate 19. The solution is then atomized by evenly distributed atomizing nozzles at the bottom of the spray plate 18 and spiral spray plate 19. 20. The solution is atomized and sprayed out. Guided by the spiral spray plate 19, the flue gas will spiral upward, ensuring that the sprayed atomized solution comes into full and uniform contact with the flue gas. During the upward process, the flue gas continues to mix with the solution, thus continuously treating the flue gas for desulfurization and denitrification. In this overall coordinated process, the flue gas can be cooled and dust removed before desulfurization and denitrification. The atomizing spraying of the solution by the spirally distributed atomizing nozzles 20 on the spiral spray plate 19 and the atomizing nozzles 20 at the bottom of the spray plate 18 improves the desulfurization and denitrification effect of the flue gas, enhancing its practicality.

[0019] A demister 22 is fixedly connected to the upper side inside the flue gas treatment box 3. An exhaust pipe 23 is fixedly connected to the top of the flue gas treatment box 3. A chimney hood 24 is fixedly connected to the top of the exhaust pipe 23. A drain pipe 25 is fixedly connected to the lower front side of the flue gas treatment box 3. A drain valve 26 is installed on the drain pipe 25. After the flue gas undergoes desulfurization and denitrification treatment, the demister 22 can remove water mist from the flue gas to prevent the flue gas from carrying water mist out. The chimney hood 24 can change the exhaust path of the flue gas and prevent rain and snow from falling into the flue gas treatment box 3 during rainy or snowy weather. After treatment, the wastewater is discharged through the drain pipe 25 by opening the drain valve 26.

[0020] The water tank 2 has a rotating cover 27 on top and a thermometer 28 embedded in the front. A drain pipe 29 is fixedly connected to the lower front of the water tank 2, and a drain valve 30 is provided on the drain pipe 29. In use, the temperature of the water in the water tank 2 can be observed through the thermometer 28. After the water tank 2 stabilizes and reaches the corresponding value, the drain valve 30 is opened to drain the higher temperature water through the drain pipe 29. After the water tank is refilled by opening the water tank cover 27, it can be used again.

[0021] The top of the storage tank 4 is fitted with a rotating cover 31, and the right end of the storage tank 4 has an opening 21. A liquid level mirror 32 is provided at the front end of the storage tank 4. In use, the remaining amount of desulfurization and denitrification solution in the storage tank 4 can be observed through the liquid level mirror 32 so that the storage cover 31 can be opened in time to replenish it.

[0022] This utility model discloses a flue gas desulfurization and denitrification process device. In operation, the water storage tank 2 is filled with an appropriate amount of water, the water level being two-thirds of the tank's height. The flue gas treatment tank 3 and the liquid storage tank 4 contain solutions for desulfurization and denitrification of the flue gas. The solution in the flue gas treatment tank 3 submerges the flow equalization cylinder 11. The desulfurization and denitrification solution can be sodium chlorite solution or an alkaline aqueous solution containing strong oxidants such as NaClO, KMnO4, Na2S2O8, O3, emulsified yellow phosphorus, and H2O2. Initially, the flue gas enters the water storage tank 2 at an appropriate flow rate through the inlet bend 7 and the E-shaped pipe 8, and then passes through the inlet hole at the bottom of the E-shaped pipe 8. 9. The flue gas is evenly filled into the water in the water storage tank 2. The water in the water storage tank 2 cools and removes dust from the flue gas. Then, the flue gas enters the flue gas treatment box 3 through the air guide bend 10 and the flow equalization cylinder 11. Through the air outlet 12 on the outer wall of the flow equalization cylinder 11, the flue gas is evenly filled into the desulfurization and denitrification solution at the bottom of the flue gas treatment box 3, thereby performing desulfurization and denitrification treatment on the flue gas. The liquid extraction valve 15 is opened, and the high-pressure water pump 13 is started. The high-pressure water pump 13 extracts the desulfurization and denitrification solution from the liquid storage tank 4 through the liquid extraction pipe 14, and then delivers it to the spray plate 18 and the spiral spray plate 19 through the conveying bend 16 and the diversion pipe 17, respectively. The atomizing nozzles 20 evenly distributed at the bottom of the spray plate 18 and the spiral spray plate 19 atomize and spray the solution. The atomizing nozzles 20 at the bottom of the spiral spray plate 19 are spirally distributed inside the flue gas treatment box 3. Guided by the spiral spray plate 19, the flue gas will spiral upwards, allowing the atomized solution sprayed by the atomizing nozzles 20 to fully contact the flue gas. As the flue gas rises, it continuously mixes with the solution, thus continuously desulfurizing and denitrifying the flue gas. In this overall coordinated process, the flue gas is cooled, dusted, and desulfurized / denitred. After desulfurization and denitrification, the flue gas passes through the demister 22 to remove impurities. Water mist is introduced to prevent the flue gas from carrying water mist out. The chimney hood 24 can change the exhaust path of the flue gas and prevent rain and snow from falling into the flue gas treatment box 3 during rainy or snowy weather. After treatment, the waste liquid is discharged through the drain pipe 25 by opening the drain valve 26. The temperature of the water in the water storage tank 2 can be observed by the thermometer 28. After the water storage tank 2 stabilizes and reaches the corresponding value, the drain valve 30 is opened to discharge the higher temperature water through the drain pipe 29. After the water tank cover 27 is opened to replenish the water, it can continue to be used. The remaining amount of desulfurization and denitrification solution in the liquid storage tank 4 can be observed by the liquid level mirror 32 so that the liquid storage cover 31 can be opened in time for replenishment.

[0023] The flue gas desulfurization and denitrification process device of this utility model has common mechanical installation, connection or setting methods, and can be implemented as long as it can achieve its beneficial effect. The high-pressure water pump 13, liquid extraction valve 15, demister 22, liquid discharge valve 26, thermometer 28 and drain valve 30 of the flue gas desulfurization and denitrification process device of this utility model are purchased from the market. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual.

[0024] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A flue gas desulfurization and denitrification process device, comprising a base plate (1), characterized in that, A water storage tank (2) is fixedly connected to the top left of the base plate (1), a flue gas treatment box (3) is fixedly connected to the top middle of the base plate (1), and a liquid storage tank (4) is fixedly connected to the top right of the base plate (1). An air inlet assembly (5) is provided between the water storage tank (2) and the flue gas treatment box (3) for conveying flue gas. A sprayer (6) is provided between the flue gas treatment box (3) and the liquid storage tank (4) for spraying the desulfurization and denitrification solution.

2. The flue gas desulfurization and denitrification process device as described in claim 1, characterized in that, The air intake assembly (5) includes an air intake bend (7) and a guide bend (10). The air intake bend (7) is fixedly installed inside the water storage tank (2) on the left side. The input end of the air intake bend (7) extends from the left end of the water storage tank (2). The output end of the air intake bend (7) is fixedly connected to an E-shaped pipe (8). The right end of the E-shaped pipe (8) is fixedly connected to the inner wall of the right side of the water storage tank (2). Multiple sets of air intake holes (9) are equidistantly opened at the bottom end of the E-shaped pipe (8). An air outlet is opened at the right end of the water storage tank (2). The guide bend (10) is fixedly installed inside the left side of the flue gas treatment box (3). The input end of the guide bend (10) is fixedly connected to the air outlet. The output end of the guide bend (10) is fixedly connected to a flow equalization cylinder (11). Air outlet holes (12) are evenly opened on the outer wall of the flow equalization cylinder (11). The bottom end of the flow equalization cylinder (11) is fixedly connected to the center of the bottom end inside the flue gas treatment box (3).

3. The flue gas desulfurization and denitrification process device as described in claim 2, characterized in that, The sprayer (6) includes a high-pressure water pump (13), which is fixedly installed on the top of the base plate (1). The high-pressure water pump (13) is located between the flue gas treatment box (3) and the liquid storage tank (4). The input end of the high-pressure water pump (13) is fixedly connected to a liquid extraction pipe (14), and the right end of the liquid extraction pipe (14) is fixedly connected to the inside of the liquid storage tank (4). A liquid extraction valve (15) is installed on the liquid extraction pipe (14). The output end of the high-pressure water pump (13) is fixedly connected to a conveying bend pipe (16), which is fixedly installed on the upper right side of the flue gas treatment box (3). The conveying bend pipe (16) delivers... The outlet extends into the flue gas treatment box (3). A diversion pipe (17) is fixedly connected to the upper left side of the conveying bend (16). The diversion pipe (17) is fixedly installed on the flue gas treatment box (3). A spray plate (18) is fixedly connected to the output end of the conveying bend (16). The spray plate (18) is coaxial with the flue gas treatment box (3). A spiral spray plate (19) is fixedly connected to the output end of the diversion pipe (17). The spiral spray plate (19) is fixedly connected to the inner wall of the flue gas treatment box (3). Multiple sets of atomizing nozzles (20) are evenly fixedly connected to the bottom of both the spray plate (18) and the spiral spray plate (19).

4. The flue gas desulfurization and denitrification process device as described in claim 3, characterized in that, A demister (22) is fixedly connected to the upper side inside the flue gas treatment box (3). An exhaust pipe (23) is fixedly connected to the top of the flue gas treatment box (3). A chimney hood (24) is fixedly connected to the top of the exhaust pipe (23). A drain pipe (25) is fixedly connected to the lower front side of the flue gas treatment box (3). A drain valve (26) is installed on the drain pipe (25).

5. The flue gas desulfurization and denitrification process device as described in claim 4, characterized in that, The water tank (2) has a rotating cover at the top with a water tank cover (27), a thermometer (28) is embedded at the front end of the water tank (2), and a drain pipe (29) is fixedly connected to the lower front end of the water tank (2). A drain valve (30) is provided on the drain pipe (29).

6. The flue gas desulfurization and denitrification process device as described in claim 5, characterized in that, The top of the liquid storage tank (4) is fitted with a liquid storage cap (31), the right end of the liquid storage tank (4) is provided with an opening (21), and the front end of the liquid storage tank (4) is provided with a liquid level mirror (32).

Images