A boiler flue gas desulfurization and dust removal equipment
By using vacuum pumps and filter frames in boiler flue gas desulfurization and dust removal equipment, the waiting problem of traditional static sedimentation methods has been solved, achieving rapid and efficient solid-liquid separation and ensuring continuous equipment operation and liquid purity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANXI LANTIAN MEIYU ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional static sedimentation methods require a long waiting time in boiler flue gas desulfurization and dust removal equipment, affecting the continuous operation and separation efficiency of the equipment.
A vacuum pump is used to create a negative pressure environment inside the vacuum tank. A filter frame and a limiting plate are used to separate the liquid in the lime slurry. Combined with a water spray nozzle and an adsorption plate, the solid-liquid separation process of the lime slurry is accelerated.
It significantly shortens the separation time, improves separation efficiency, ensures stable equipment operation, and enhances the purity of the liquid, creating conditions for subsequent processing.
Smart Images
Figure CN224541394U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of desulfurization and dust removal, and in particular to a boiler flue gas desulfurization and dust removal device. Background Technology
[0002] Boiler flue gas desulfurization and dust removal equipment is a key environmental protection device for industrial boiler emission control. Its core function is to reduce pollutant emissions in flue gas through desulfurization (using chemical or physical methods to remove sulfur dioxide and other sulfides from flue gas, reducing acid rain, smog, and harm to the human respiratory system) and dust removal (using filtration, electrostatic adsorption, and other methods to remove particulate matter such as smoke dust, reducing air pollution and health risks). At the same time, it helps enterprises meet environmental regulations, thereby reducing the overall harm to the environment and human health.
[0003] In wet desulfurization, lime water reacts with sulfides in flue gas to form lime slurry containing a large number of solid particles. Traditional equipment uses a static sedimentation method, which relies on gravity for natural settling and requires a long waiting time. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this utility model provides a boiler flue gas desulfurization and dust removal device, which solves the problem of the long waiting time required by the static sedimentation method.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a boiler flue gas desulfurization and dust removal device, comprising a vacuum tank, a limiting plate connected to the inner wall of the vacuum tank, a filter frame disposed inside the vacuum tank, the bottom surface of the filter frame contacting the upper surface of the limiting plate, a top cover movably connected to the upper surface of the vacuum tank, a feed pipe connected to the upper surface of the top cover, a first electric valve connected to the outer surface of the feed pipe, a water outlet pipe connected to the outer surface of the vacuum tank, a second electric valve connected to the outer surface of the water outlet pipe, a connecting plate connected to the outer surface of the vacuum tank, a vacuum pump connected to the upper surface of the connecting plate, and the output end of the vacuum pump extending into the interior of the vacuum tank after passing through the connecting plate and the vacuum tank respectively.
[0006] As a further technical solution of this utility model, a processing tank is provided on the left side of the vacuum tank, and three diversion pipes are connected to the inner wall of the processing tank.
[0007] As a further technical solution of this utility model, the outer surface of each of the diversion pipes is connected to a number of water spray nozzles, and the outer surfaces of the three diversion pipes are connected to a connecting pipe.
[0008] As a further technical solution of this utility model, the inner wall of the treatment tank is connected to three adsorption plates, and the upper surface of the treatment tank is connected to a smoke outlet pipe.
[0009] As a further technical solution of this utility model, a storage box is provided behind the treatment tank, a water pump is connected inside the storage box, a liquid addition pipe is connected to the upper surface of the storage box, a delivery pipe is connected to the output end of the water pump, and the delivery pipe passes through the storage box and the treatment tank respectively and is connected to the outer surface of the connecting pipe.
[0010] As a further technical solution of this utility model, the bottom surface of the processing tank is connected to a discharge pipe, the outer surface of the discharge pipe is connected to a third electric valve, the end of the discharge pipe away from the processing tank is connected to a connecting pipe, and a vacuum suction pump is provided on the bottom surface of the processing tank.
[0011] As a further technical solution of this utility model, the input end of the vacuum suction pump is connected to the outer surface of the connecting pipe, the output end of the vacuum suction pump is connected to the conveying pipe, and the end of the conveying pipe away from the vacuum suction pump is connected to the outer surface of the feed pipe.
[0012] As a further technical solution of this utility model, the outer surface of the treatment tank is connected to a smoke inlet pipe, the end of the smoke inlet pipe away from the treatment tank is connected to a flange, the outer surface of the treatment tank is connected to a control box, and the bottom surface of the treatment tank is connected to four mounting plates.
[0013] This utility model provides a boiler flue gas desulfurization and dust removal device, which has the following advantages compared with the prior art: This invention utilizes the negative pressure environment created by a vacuum pump within a vacuum tank to quickly separate the liquid from the lime slurry through a filter frame. Compared to traditional methods such as static sedimentation, this significantly shortens the separation time and improves separation efficiency. It can promptly handle the large amounts of lime slurry generated during desulfurization, preventing slurry accumulation from affecting continuous equipment operation. The separated liquid has higher purity, creating favorable conditions for subsequent liquid recycling or further processing. The limiting plate ensures that the filter frame will not shift or shake due to force during vacuum adsorption, guaranteeing the stability of the solid-liquid separation process and preventing positional deviations from affecting liquid permeation efficiency, thus improving the separation effect. Attached Figure Description
[0014] Figure 1 A front view of a boiler flue gas desulfurization and dust removal device; Figure 2 This is a schematic diagram of the internal structure of a vacuum tube in a boiler flue gas desulfurization and dust removal device. Figure 3 Left view of a boiler flue gas desulfurization and dust removal device; Figure 4 This is a schematic diagram of the internal structure of a storage box in a boiler flue gas desulfurization and dust removal device. Figure 5 This is a schematic diagram of the internal structure of a treatment tank in a boiler flue gas desulfurization and dust removal device.
[0015] In the diagram: 1. Vacuum tank; 2. Limiting plate; 3. Filter frame; 4. Top cover; 5. Feed pipe; 6. First solenoid valve; 7. Water outlet pipe; 8. Second solenoid valve; 9. Connecting plate; 10. Vacuum pump; 11. Processing tank; 12. Diverter pipe; 13. Spray nozzle; 14. Connecting pipe; 15. Adsorption plate; 16. Smoke outlet pipe; 17. Storage tank; 18. Water pump; 19. Infusion pipe; 20. Liquid addition pipe; 21. Third solenoid valve; 22. Vacuum suction pump; 23. Connecting pipe; 24. Conveying pipe; 25. Flange; 26. Control box; 27. Mounting plate; 28. Discharge pipe; 29. Smoke inlet pipe. Detailed Implementation
[0016] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0017] Please see Figure 1-5 This utility model provides a technical solution for boiler flue gas desulfurization and dust removal equipment: it includes a vacuum tank 1, a limiting plate 2 connected to the inner wall of the vacuum tank 1, a filter frame 3 installed inside the vacuum tank 1, the bottom surface of the filter frame 3 contacting the upper surface of the limiting plate 2, an upper cover 4 movably connected to the upper surface of the vacuum tank 1, a feed pipe 5 connected to the upper surface of the upper cover 4, a first electric valve 6 connected to the outer surface of the feed pipe 5, a water outlet pipe 7 connected to the outer surface of the vacuum tank 1, a second electric valve 8 connected to the outer surface of the water outlet pipe 7, a connecting plate 9 connected to the outer surface of the vacuum tank 1, a vacuum pump 10 connected to the upper surface of the connecting plate 9, and the output end of the vacuum pump 10 extending into the interior of the vacuum tank 1 after passing through the connecting plate 9 and the vacuum tank 1 respectively. Since the upper cover 4 is installed on the vacuum tank 1 in a fitting manner, as the negative pressure inside the tank gradually increases, the external atmospheric pressure will generate downward pressure, making the fitting between the upper cover 4 and the vacuum tank 1 increasingly tighter, effectively ensuring the sealing of the vacuum tank 1 and avoiding the impact of air leakage on the stability of the negative pressure environment.
[0018] like Figure 1 and Figure 5As shown, a treatment tank 11 is located to the left of the vacuum tank 1. Three diversion pipes 12 are connected to the inner wall of the treatment tank 11. Several water spray nozzles 13 are connected to the outer surface of each diversion pipe 12. The water spray nozzles 13 are one of the key components for desulfurization within the treatment tank 11. They spray lime water, delivered through the diversion pipes 12, in a mist form into the interior space of the treatment tank 11. This spraying method greatly increases the contact area between the absorbent and the flue gas entering the treatment tank 11, allowing the absorbent to fully contact and chemically react with pollutants such as sulfides in the flue gas, thereby efficiently absorbing harmful components in the flue gas and achieving the purpose of desulfurization. The outer surfaces of the three diversion pipes 12 are connected to a connecting pipe 14. The inner wall of the treatment tank 11 is connected to three adsorption plates 15. The upper surface of the treatment tank 11 is connected to a flue gas outlet pipe 16. The water pump 18 is started through the control box 26. The lime water is transported to the connecting pipe 14 through the infusion pipe 19, and then diverted to the three diversion pipes 12. Finally, it is evenly sprayed into the treatment tank 11 through several water spray nozzles 13 on the diversion pipes. The lime water comes into full contact with the flue gas and absorbs pollutants such as sulfides. The three adsorption plates 15 in the treatment tank 11 further adsorb particulate matter and untreated pollutants. The purified flue gas is discharged through the flue gas outlet pipe 16.
[0019] like Figure 1 and Figure 4 As shown, a storage tank 17 is provided behind the treatment tank 11. The lime water in the storage tank 17 is replenished through the liquid addition pipe 20. A water pump 18 is connected inside the storage tank 17. The liquid addition pipe 20 is connected to the upper surface of the storage tank 17. The output end of the water pump 18 is connected to the delivery pipe 19. The delivery pipe 19 passes through the storage tank 17 and the treatment tank 11 respectively and is connected to the outer surface of the connecting pipe 14.
[0020] like Figure 1 and Figure 5As shown, the bottom surface of the treatment tank 11 is connected to the discharge pipe 28, and the outer surface of the discharge pipe 28 is connected to the third solenoid valve 21. The end of the discharge pipe 28 away from the treatment tank 11 is connected to the connecting pipe 23. A vacuum suction pump 22 is installed on the bottom surface of the treatment tank 11. The input end of the vacuum suction pump 22 is connected to the connecting pipe 23. Under the action of the pump, a negative pressure environment is formed in the connecting pipe 23 and the connected discharge pipe 28. Using the suction force generated by this negative pressure, the waste liquid in the treatment tank 11 is sucked into the vacuum tank 1. The input end of the vacuum suction pump 22 is connected to the outer surface of the connecting pipe 23, and the output end of the vacuum suction pump 22 is connected to the conveying pipe 24. The end of the conveying pipe 24 away from the vacuum suction pump 22 is connected to the outer surface of the feed pipe 5. After the absorbent liquid in the treatment tank 11 reacts with the flue gas for a period of time, waste liquid containing solid impurities will be generated. At this time, the third electric valve 21 on the outer surface of the discharge pipe 28 is opened, and the waste liquid at the bottom of the treatment tank 11 flows into the connecting pipe 23 through the discharge pipe 28. The vacuum suction pump 22 at the bottom of the treatment tank 11 is started, and its input end is connected to the connecting pipe 23. Under the action of the vacuum suction pump 22, the waste liquid in the connecting pipe 23 is sucked into the pump body. Subsequently, the waste liquid is transported through the conveying pipe 24 connected to the output end of the vacuum suction pump 22. Since the end of the conveying pipe 24 away from the vacuum suction pump 22 is connected to the feed pipe 5, the waste liquid will enter the feed pipe 5 through the conveying pipe 24 and then enter the vacuum tank 1 for subsequent solid-liquid separation treatment.
[0021] like Figure 1 and Figure 3 As shown, the outer surface of the treatment tank 11 is connected to a flue gas inlet pipe 29. The end of the flue gas inlet pipe 29 away from the treatment tank 11 is connected to a flange 25. The flange 25 is a key structure for achieving a reliable connection between the flue gas inlet pipe 29 and the boiler exhaust pipe. The outer surface of the treatment tank 11 is connected to a control box 26. The bottom surface of the treatment tank 11 is connected to four mounting plates 27. The main function of the mounting plates 27 is to securely install the treatment tank 11 in the designated position by fixing it to the mounting surface.
[0022] The working principle of this utility model is as follows: First, filter paper is laid on the filter frame 3. Then, the lime slurry to be treated is introduced into the vacuum tank 1 through the feed pipe 5. At this time, the first electric valve 6 is in the open state, and the lime slurry is injected into the filter frame 3. The limiting plate 2 supports and positions the filter frame 3 to ensure that it is stably placed in the vacuum tank 1. After the lime slurry is injected, the first electric valve 6 is closed, and the vacuum pump 10 installed on the connecting plate 9 is started. The output end of the vacuum pump 10 extends into the tank through the connecting plate 9 and the vacuum tank 1. By pumping air, a negative pressure environment is formed inside the vacuum tank 1. Under pressure, the liquid components in the lime slurry will pass through the filter paper and filter frame 3 in sequence and drip into the cavity of the vacuum tank 1. The solid particles in the lime slurry are intercepted by the filter paper and filter frame 3. After separation, the second electric valve 8 is opened, and the liquid collected in the cavity of the vacuum tank 1 can be discharged through the water outlet pipe 7 for subsequent recycling or treatment. When it is necessary to clean the solids in the filter frame 3, the top cover 4 can be opened to remove the filter frame 3. The used filter paper and solids can be disposed of together. After replacing the filter paper, the filter frame 3 and the top cover 4 can be reinstalled to enter the next round of processing.
[0023] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.
Claims
1. A boiler flue gas desulfurization and dust removal device, characterized in that, The device includes a vacuum tank (1), with a limiting plate (2) connected to the inner wall of the vacuum tank (1). A filter frame (3) is provided inside the vacuum tank (1), with the bottom surface of the filter frame (3) in contact with the upper surface of the limiting plate (2). A top cover (4) is movably connected to the upper surface of the vacuum tank (1), and a feed pipe (5) is connected to the upper surface of the top cover (4). A first electric valve (6) is connected to the outer surface of the feed pipe (5). A water outlet pipe (7) is connected to the outer surface of the vacuum tank (1), and a second electric valve (8) is connected to the outer surface of the water outlet pipe (7). A connecting plate (9) is connected to the outer surface of the vacuum tank (1), and a vacuum pump (10) is connected to the upper surface of the connecting plate (9). The output end of the vacuum pump (10) extends into the interior of the vacuum tank (1) after passing through the connecting plate (9) and the vacuum tank (1).
2. The boiler flue gas desulfurization and dust removal equipment according to claim 1, characterized in that, A processing tank (11) is provided on the left side of the vacuum tank (1), and three diversion pipes (12) are connected to the inner wall of the processing tank (11).
3. The boiler flue gas desulfurization and dust removal equipment according to claim 2, characterized in that, The outer surface of each of the diversion pipes (12) is connected to a plurality of water spray nozzles (13), and the outer surfaces of the three diversion pipes (12) are connected to a connecting pipe (14).
4. The boiler flue gas desulfurization and dust removal equipment according to claim 2, characterized in that, The inner wall of the treatment tank (11) is connected to three adsorption plates (15), and the upper surface of the treatment tank (11) is connected to a smoke outlet pipe (16).
5. The boiler flue gas desulfurization and dust removal equipment according to claim 2, characterized in that, A storage tank (17) is provided behind the processing tank (11). A water pump (18) is connected inside the storage tank (17). A liquid addition pipe (20) is connected to the upper surface of the storage tank (17). An infusion pipe (19) is connected to the output end of the water pump (18). The infusion pipe (19) passes through the storage tank (17) and the processing tank (11) respectively and is connected to the outer surface of the connecting pipe (14).
6. The boiler flue gas desulfurization and dust removal equipment according to claim 2, characterized in that, The bottom surface of the processing tank (11) is connected to a discharge pipe (28), the outer surface of the discharge pipe (28) is connected to a third electric valve (21), the end of the discharge pipe (28) away from the processing tank (11) is connected to a connecting pipe (23), and a vacuum suction pump (22) is provided on the bottom surface of the processing tank (11).
7. The boiler flue gas desulfurization and dust removal equipment according to claim 6, characterized in that, The input end of the vacuum suction pump (22) is connected to the outer surface of the connecting pipe (23), and the output end of the vacuum suction pump (22) is connected to the conveying pipe (24). The end of the conveying pipe (24) away from the vacuum suction pump (22) is connected to the outer surface of the feed pipe (5).
8. The boiler flue gas desulfurization and dust removal equipment according to claim 2, characterized in that, The outer surface of the treatment tank (11) is connected to a smoke inlet pipe (29), and the end of the smoke inlet pipe (29) away from the treatment tank (11) is connected to a flange (25). The outer surface of the treatment tank (11) is connected to a control box (26), and the bottom surface of the treatment tank (11) is connected to four mounting plates (27).