Flue gas purification device

Abstract

The invention belongs to the technical field of flue gas purification, and relates to a flue gas purification device. The upper end of the shell is provided with an air outlet pipe and a cleaning port, and the lower end of the shell is provided with a liquid discharge pipe and an air inlet pipe; a purification assembly is arranged in the shell and comprises a plurality of partition plates and partition nets which are arranged in parallel; the partition plate is rotationally mounted in the shell; the separation net is arranged at the end of the purification assembly and used for shielding the end of a gap between every two adjacent separation plates, and the gap between every two adjacent separation plates is filled with adsorption particles. The partition plates are in an inclined state, so that gaps between the adjacent partition plates are narrowed, paths are lengthened, the purification capacity of adsorption particles is fully utilized, and the flue gas purification effect is remarkably improved. When adsorption particles need to be regenerated, the partition plates are rotated to be in a vertical state, at the moment, gaps between the adjacent partition plates are increased, sufficient rolling and collision spaces are provided for the adsorption particles, and therefore smoke dust and dirt which are adsorbed and intercepted are effectively stripped and eluted.

Description

Technical Field

[0001] This invention belongs to the field of flue gas purification technology and relates to a flue gas purification device. Background Technology

[0002] Flue gas purification is a crucial aspect of industrial production and environmental protection. Especially in industries such as power generation, metallurgy, and chemicals, flue gas emissions contain large amounts of particulate matter, sulfur oxides, nitrogen oxides, and other pollutants, which are significant sources of regional air pollution. Therefore, industrial flue gas purification is necessary.

[0003] In the field of industrial flue gas purification, purification devices filled with adsorbent particles (such as activated carbon and molecular sieves) are commonly used. Traditional devices mostly employ a fixed bed structure, requiring sufficient contact between the flue gas and the adsorbent particles to achieve high-efficiency purification. This necessitates narrow, tortuous, and long flue gas channels to force the flue gas to disperse and increase the gas-solid contact area and time. When the adsorbent particles become saturated and require cleaning and regeneration, a spacious and unobstructed space is needed to efficiently remove pollutants captured on the surface and in the pores of the adsorbent particles, allowing the adsorbent particles to tumble and collide fully under the impact of the cleaning medium. However, the internal flow channel dimensions and spatial configuration of existing mainstream adsorption purification devices are difficult to change once manufactured, making it difficult to simultaneously achieve both cleaning and purification efficiency. When cleaning of the adsorbent particles is required, disassembly or inefficient soaking and rinsing are often necessary, resulting in low efficiency and consequently affecting the flue gas purification efficiency.

[0004] To address the above problems, this invention proposes a flue gas purification device. Summary of the Invention

[0005] To address the problems existing in the background art, the present invention proposes a flue gas purification device.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A flue gas purification device includes a housing, with an outlet pipe and a cleaning port at the upper end of the housing, and a drain pipe and an inlet pipe at the lower end; a purification component is disposed inside the housing, the purification component including a plurality of parallel-arranged partitions and a mesh; the partitions are rotatably installed inside the housing; the mesh is disposed at the end of the purification component to block the end of the gap between two adjacent partitions, and the gap between two adjacent partitions is filled with adsorbent particles; The housing is provided with a drive assembly for rotating the partition to change the tilt angle of the partition.

[0007] Furthermore, the drive assembly includes a rack that is slidably mounted on the housing, and a rotating shaft is fixedly connected to the partition. The end of the rotating shaft extends outside the housing and is fixedly connected to a gear that meshes with the rack.

[0008] Furthermore, there are two purification components, arranged one above the other.

[0009] Furthermore, a turntable is rotatably mounted on the housing, and a connecting rod is hinged between the rack and the turntable.

[0010] Furthermore, a protective cover is detachably installed on the housing, a motor is installed on the protective cover, a connecting block is fixedly connected to the output shaft of the motor, and a connecting hole matching the connecting block is opened on the turntable. The connecting block drives the turntable to rotate through the insertion and cooperation between the connecting block and the connecting hole.

[0011] Furthermore, the top of the housing is detachably provided with a sealing cap that blocks the cleaning port.

[0012] Furthermore, a limiting frame is fixedly installed on the housing, and a sliding groove is provided on the rack to slide in cooperation with the limiting frame.

[0013] Furthermore, the sealing cap is detachably connected to the housing by bolts.

[0014] Furthermore, the connecting block is generally toothed.

[0015] Furthermore, the adsorbent particles are activated carbon or zeolite.

[0016] Compared with the prior art, the present invention has the following beneficial effects: when purifying flue gas, the baffle is tilted, which narrows the gap between adjacent baffles and lengthens the path, increases the contact area and contact time between flue gas and adsorbent particles, and makes full use of the purification capacity of adsorbent particles, thereby significantly improving the purification effect of flue gas.

[0017] When regeneration of the adsorbed particles is required, the baffles are rotated to a vertical position. At this time, the gap between adjacent baffles increases, providing ample space for the adsorbed particles to tumble and collide. With the high-pressure cleaning medium introduced from the cleaning port, the adsorbed particles can move fully within the gap. The dirt adsorbed on their surface and in the pores is efficiently removed under the action of particle collision and fluid shearing, achieving deep cleaning without disassembly, which in turn helps to ensure the purification effect of the flue gas.

[0018] The cleaning and working states can be switched by adjusting the angle of the partition. It has a compact structure, a high degree of automation, and is easy to maintain. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the driving component in this invention; Figure 3 In this invention Figure 2Enlarged view of part A; Figure 4 In this invention Figure 3 Enlarged view of part B; Figure 5 This is a schematic diagram of the connecting block in this invention; Figure 6 This is a schematic diagram of the internal structure of the shell in this invention; Figure 7 In this invention Figure 6 Enlarged view of part C; Figure 8 This is a schematic diagram of the state of the purification component when the present invention is in a clean state; Figure 9 This is a schematic diagram of the state of the purification component when the present invention is in operation.

[0020] In the diagram: 1. Housing; 2. Inlet pipe; 3. Outlet pipe; 4. Drain pipe; 5. Sealing cap; 6. Cleaning port; 7. Rotating shaft; 8. Partition plate; 9. Partition mesh; 10. Gear; 11. Rack; 12. Slide groove; 13. Limiting frame; 14. First hinge seat; 15. Connecting rod; 16. Turntable; 17. Second hinge seat; 18. Connecting hole; 19. Protective cover; 20. Motor; 21. Connecting block. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figures 1-9 As shown, the technical solution adopted by the present invention is as follows: A flue gas purification device includes a housing 1, with an outlet pipe 3 and a cleaning port 6 at the upper end of the housing 1, and a drain pipe 4 and an inlet pipe 2 at the lower end. Purifying liquid can be added into the housing 1 through the cleaning port 6, and the flue gas to be purified is introduced into the housing 1 through the inlet pipe 2. The flue gas entering the housing 1 passes through the purifying liquid, which performs preliminary purification of the flue gas, and finally, it is discharged through the outlet pipe 3.

[0023] A sealing cover 5 is detachably installed on the housing 1 by bolts. The sealing cover 5 is used to block the cleaning port 6. A sealing gasket is provided between the sealing cover 5 and the housing 1 to enhance the sealing performance of the cleaning port 6.

[0024] like Figure 6 As shown, a purification component for purifying flue gas is disposed inside the housing 1. In this embodiment, two purification components are provided, and the two purification components are arranged one above the other to enhance the treatment effect on the flue gas.

[0025] Each purification component includes multiple parallel-arranged partitions 8. The partitions 8 are rectangular plates with a certain spacing between adjacent partitions 8. Each partition 8 is rotatably mounted within the housing 1 via a rotating shaft 7 fixedly connected to it. The gaps between adjacent partitions 8 are filled with adsorption particles. The adsorption particles can be activated carbon, zeolite, or other porous adsorption materials.

[0026] The purification component has mesh screens 9 at both its top and bottom ends, which are connected to the ends of the partition plates 8. The mesh screens 9 are used to seal the ends of the gaps between two adjacent partition plates 8. The mesh screens 9 can effectively prevent adsorbed particles from falling from the end gaps between the partition plates 8, while allowing flue gas to pass through smoothly.

[0027] In this embodiment, the rotating shaft 7 is fixedly connected to the middle of the partition plate 8. For example... Figure 8 As shown, when the baffle 8 is in a vertical position, it is in the clean state. The gap between adjacent baffles 8 is at its maximum, providing ample space for the adsorbed particles to tumble and collide, facilitating the rinsing of the adsorbed particles. Figure 9 As shown, the baffle 8 is in an inclined state, i.e., the working state. At this time, compared with the vertical state, the gap between adjacent baffles 8 becomes narrower, which makes the thickness of the adsorption layer formed by the adsorption particles larger. Under the compression of the baffle 8, the adsorption particles fill the gap between adjacent baffles 8 more tightly, thereby improving the purification effect on flue gas.

[0028] The housing 1 is provided with a drive assembly for driving the partition 8 to rotate. The drive assembly drives the rotating shaft 7 to rotate, thereby changing the tilt angle of the partition 8. This can change the effective flow cross section of the adjacent partitions 8, so that the gap between the adjacent partitions 8 is narrowed in the working state to enhance the contact between the flue gas and the adsorbed particles, and the gap between the adjacent partitions 8 is widened in the cleaning state to facilitate cleaning, so as to adapt to the different needs of the working state and the cleaning state.

[0029] In this embodiment, as Figure 2 , Figure 3 , Figure 4 As shown, the drive assembly includes a rack 11, a limit frame 13 fixed on the housing 1, and a groove 12 on the rack 11 that engages with the limit frame 13. The rack 11 slides with the limit frame 13 through the groove 12 to achieve limited sliding. The end of the rotating shaft 7 extends outside the housing 1, and a gear 10 is fixedly connected to the end of the rotating shaft 7. The gear 10 meshes with the rack 11. When the rack 11 slides along the limit frame 13, it can drive the gear 10 and the rotating shaft 7 to rotate, thereby realizing the angle adjustment of the partition 8.

[0030] To achieve synchronous and opposite movement of the partition plates 8 in the upper and lower purification components, a turntable 16 is rotatably mounted on the outer side of the housing 1, positioned between two racks 11. The racks 11 and the turntable 16 are hinged together by a connecting rod 15. The turntable 16 pushes or pulls the racks 11 in a linear motion via the connecting rod 15. Specifically, one end of the connecting rod 15 is hinged to a first hinge seat 14, and the other end is hinged to a second hinge seat 17. The first hinge seat 14 is fixedly connected to the racks 11, and the second hinge seat 17 is fixedly connected to the turntable 16. The two second hinge seats 17 on the turntable 16 are symmetrically arranged. When the turntable 16 rotates, it causes the two racks 11 to move in opposite directions in a linear motion, driving the corresponding gears 10 to rotate.

[0031] like Figure 1 , Figure 3 , Figure 5 As shown, a protective cover 19 is detachably mounted on the housing 1, and a motor 20 is fixedly mounted on the protective cover 19. A connecting block 21 is fixedly connected to the output shaft of the motor 20, and a connecting hole 18 matching the shape of the connecting block 21 is provided at the center of the turntable 16. When the protective cover 19 is installed, the connecting block 21 is inserted into the connecting hole 18, thereby enabling the motor 20 to drive the turntable 16. When the protective cover 19 is removed, the connecting block 21 is moved out along with the motor 20, separating from the turntable 16, facilitating maintenance and repair of the drive assembly. In this embodiment, the connecting block 21 is generally toothed.

[0032] Working principle: Initially, the baffles 8 in the purification component are in a vertical position, i.e., in a clean state, and the gap between adjacent baffles 8 is at its maximum. The adsorbed particles between adjacent baffles 8 do not fill the space formed between them.

[0033] Open the sealing cover 5 and inject sufficient purification liquid (such as alkaline solution, water or other media) into the housing 1 through the cleaning port 6 until the set liquid level is reached. At this time, the liquid level completely submerges the end of the air inlet pipe 2 connected to the housing 1. During this process, the injected purification liquid flows through the vertically positioned baffle 8 and mesh 9, which preliminarily wets and cleans the adsorbed particles, removing surface dust and preparing for subsequent high-efficiency adsorption.

[0034] After the injection is complete, replace and tighten the sealing cap 5 to ensure that the cleaning port 6 is sealed.

[0035] The motor 20 is started and rotates forward. The output shaft of the motor 20 drives the connecting block 21 to rotate, and the connecting block 21 drives the turntable 16 to rotate synchronously. When the turntable 16 rotates, it pushes the rack 11 to move linearly along the limit frame 13 through the connecting rod 15. The two racks 11 move in opposite directions. Each rack 11 drives the gear 10 meshing with it to rotate, and the gear 10 drives the corresponding rotating shaft 7 to rotate, ultimately causing all the partitions 8 in the upper and lower purification components to rotate simultaneously. Figure 9As shown, the partition 8 in the upper purification assembly rotates to the left, and the partition 8 in the lower purification assembly rotates to the right. This continues until the upper left side of the upper purification assembly abuts against the inner wall of the housing 1, and the lower right side abuts against the inner wall of the housing 1, thus purifying the flue gas flowing through the housing 1. Simultaneously, the upper right side of the lower purification assembly abuts against the inner wall of the housing 1, and the lower left side abuts against the inner wall of the housing 1, thus purifying the flue gas flowing through the housing 1.

[0036] At this point, within the same purification component, the vertical gap between two adjacent baffles 8 is significantly reduced compared to the vertical state, forming a narrower and longer flue gas passage. Under the squeezing and guiding action of the inclined baffles 8, the adsorbed particles are redistributed and more tightly fill the gaps between adjacent baffles 8, increasing the thickness of the adsorption layer formed by the adsorbed particles and lengthening the path of the adsorbed particles that the flue gas is forced to pass through.

[0037] The flue gas to be treated is introduced into the bottom of the housing 1 through the inlet pipe 2. The flue gas first enters the purification liquid inside the housing 1 for first-stage purification, removing some soluble pollutants and larger particles. Subsequently, the flue gas escapes from the purification liquid and rises into the purification assembly below.

[0038] Due to the narrow, multi-channel structure formed by the inclined baffle 8, the flue gas is divided into multiple fine streams and passes through the adsorption layer. During this process, the contact area and time between the flue gas and the adsorbed particles are increased, and fine particulate matter and gaseous pollutants in the flue gas are adsorbed and trapped. The flue gas treated by the lower purification components continues to rise, and after being purified by the upper purification components, it continues to flow upward and is discharged through the outlet pipe 3, entering subsequent processes or meeting emission standards.

[0039] After the device has been running for a period of time, the adsorbed particles tend to become saturated, the purification efficiency decreases, and cleaning and regeneration are required.

[0040] Open the valve of drain pipe 4 to completely drain the waste purification liquid inside shell 1.

[0041] The motor 20 is started in reverse. The motor 20 drives the turntable 16 to rotate via the connecting block 21. The turntable 16 drives the rack 11 to move via the connecting rod 15, thereby causing the partition 8 to rotate to a vertical position until the partition 8 returns to a clean state. Figure 8 As shown.

[0042] As the partition 8 rotates to a vertical position, the gap between adjacent partitions 8 gradually increases. The originally tightly compressed adsorbent particles loosen and collapse under the action of gravity, accumulating on the mesh 9, thus creating an upper gap between adjacent partitions 8.

[0043] Keep drain pipe 4 open.

[0044] Open the sealing cover 5, insert the high-pressure water gun or cleaning nozzle into the housing 1 through the cleaning port 6, and vigorously rinse the gap between the adjacent partitions 8.

[0045] Under the impact of high-pressure water flow, the adsorbed particles in the gap of the baffle 8 obtain sufficient space for tumbling and collision. The particles rub and collide violently with each other and with the baffle 8 and the mesh 9, thereby effectively peeling off and washing away the smoke and dirt adsorbed and trapped on their surface and in their internal pores.

[0046] The wastewater generated during cleaning, carrying the detached dirt, falls under gravity and is discharged through the drain pipe 4 at the bottom of the shell 1.

[0047] After cleaning, close the drain pipe 4. Inject fresh purified liquid again through the cleaning port 6 to the set level. Cover with the sealing cap 5. Start the motor 20 to rotate forward, driving the baffle 8 to tilt back to the working angle. The device then returns to a ready state for a new round of flue gas purification.

[0048] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A flue gas purification device, comprising a housing (1), wherein an outlet pipe (3) and a cleaning port (6) are provided at the upper end of the housing (1), and a drain pipe (4) and an inlet pipe (2) are provided at the lower end; characterized in that: The housing (1) is provided with a purification component, which includes a plurality of parallel partitions (8) and a mesh (9); the partitions (8) are rotatably installed in the housing (1); the mesh (9) is provided at the end of the purification component to cover the gap between two adjacent partitions (8), and the gap between two adjacent partitions (8) is filled with adsorbent particles. The housing (1) is provided with a drive assembly for rotating the partition (8) to change the tilt angle of the partition (8).

2. The flue gas purification device according to claim 1, characterized in that: The drive assembly includes a rack (11) that is slidably mounted on the housing (1), and a rotating shaft (7) is fixedly connected to the partition (8). The end of the rotating shaft (7) extends outside the housing (1) and is fixedly connected to a gear (10) that meshes with the rack (11).

3. The flue gas purification device according to claim 1, characterized in that: There are two purification components, arranged one above the other.

4. The flue gas purification device according to claim 2, characterized in that: A turntable (16) is rotatably mounted on the housing (1), and a connecting rod (15) is hinged between the rack (11) and the turntable (16).

5. The flue gas purification device according to claim 4, characterized in that: A protective cover (19) is detachably installed on the housing (1). A motor (20) is installed on the protective cover (19). The output shaft of the motor (20) is fixedly connected to a connecting block (21). A connecting hole (18) matching the connecting block (21) is opened on the turntable (16). The connecting block (21) drives the turntable (16) to rotate through the insertion and cooperation of the connecting block (21) and the connecting hole (18).

6. The flue gas purification device according to claim 1, characterized in that: The top of the housing (1) is detachably provided with a sealing cover (5) that blocks the cleaning port (6).

7. The flue gas purification device according to claim 2, characterized in that: A limiting frame (13) is fixedly installed on the housing (1), and a sliding groove (12) is provided on the rack (11) to slide in cooperation with the limiting frame (13).

8. The flue gas purification device according to claim 6, characterized in that: The sealing cap (5) is detachably connected to the housing (1) by bolts.

9. The flue gas purification device according to claim 5, characterized in that: The connecting block (21) is toothed in shape.

10. The flue gas purification device according to claim 1, characterized in that: The adsorbent particles are activated carbon or zeolite.

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