A waste gas purification and treatment device

Abstract

This invention relates to the field of waste gas treatment technology, specifically providing a waste gas purification device. The invention discloses a waste gas purification device comprising a tower body. Inside the tower body, from top to bottom, are arranged a first packing layer and a second packing layer. Spray mechanisms are correspondingly arranged above both the first and second packing layers. A water tank is connected to one side of the bottom of the tower body, an air inlet is located on one side of the bottom of the tower body, an air outlet is located at the top of the tower body, and an observation port is provided on the tower body. A rolling filter assembly is installed inside the water tank. This invention improves the utilization rate of the washing liquid and the waste gas washing effect: through the set water storage assembly, the washing liquid dripping from the first packing layer can be temporarily stored, allowing the waste gas to mix and contact with the washing liquid in the water storage assembly, increasing the number of waste gas washing cycles. Compared with the traditional mode of purification only through the packing layer, this improves the utilization rate of the washing liquid and the waste gas washing effect.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, specifically to a waste gas purification and treatment device. Background Technology

[0002] Currently, spray towers are commonly used for waste gas treatment. Spray towers are a common type of industrial waste gas treatment equipment that works by spraying liquid into the waste gas, absorbing or neutralizing harmful components to ensure emissions meet environmental standards. For waste gas containing particulate matter, spray towers can use water droplets or other liquid droplets to collide with the particles, causing them to agglomerate and become larger, making them easier to capture and separate, thus achieving dust removal.

[0003] Currently, the washing liquid in spray towers is usually recycled. Generally, a pump is installed on one side of the bottom of the spray tower. The pump pumps the washing liquid that flows back to the water tank at the bottom of the spray tower and sprays it out again from the atomizing nozzles of each layer through liquid pipes. For example, Chinese patent with publication number CN206285623U discloses a spray-type exhaust gas demisting and purification device. Although it can filter exhaust gas by using the combination of packing layer and spray pipe, a large number of particulate impurities in the exhaust gas will continue to accumulate in the water tank. In the prior art, a filter screen is usually installed in the water tank. However, after long-term use, a thick layer of impurities will accumulate on the filter screen, which will reduce the treatment effect of the washing liquid, increase the frequency of filter screen replacement, and increase the cost of later maintenance.

[0004] In addition, existing spray towers are mainly vertical cylindrical spray towers, which usually have multiple layers of packing and spray pipes inside. Under the spray of the spray pipes, the upper packing layer continuously drips sewage onto the lower packing layer. The sewage must pass through the lower packing layer to enter the water pool at the bottom of the spray tower, which causes the lower packing layer to accumulate too much impurity, making it more prone to clogging. Summary of the Invention

[0005] In view of the above situation and to overcome the shortcomings of the prior art, the present invention provides a waste gas purification and treatment device.

[0006] The technical solution adopted by this invention is as follows: This invention provides a waste gas purification and treatment device, comprising a tower body. Inside the tower body, from top to bottom, are arranged a first packing layer and a second packing layer. Spraying mechanisms are correspondingly arranged above the first packing layer and between the first and second packing layers. A water tank is connected to one side of the bottom of the tower body, and an air inlet is opened on the other side of the bottom of the tower body. An air outlet is provided at the top of the tower body, and an observation port is provided on the tower body. A rolling filter assembly is provided inside the water tank, and a water storage assembly is provided inside the tower body. The water storage assembly is located between the first and second packing layers and above the spraying mechanisms between the first and second packing layers. The water storage assembly is connected to the rolling filter assembly. A pump body is provided on the water tank. The inlet end of the pump body extends into the water tank, and the outlet end of the pump body is connected to the spraying mechanism and the water storage assembly respectively through a spraying pipe located outside the tower body.

[0007] Furthermore, the water storage assembly includes a water storage pan, an air diffuser bend, and a siphon bend. The water storage pan is horizontally fixed inside the tower body and located below the first packing layer. The siphon bend is inverted U-shaped, with one end penetrating the water storage pan and the other end contacting the top of the water storage pan. The air diffuser bend is also inverted U-shaped, with one end penetrating the water storage pan and the other end contacting the top of the water storage pan. A water inlet is provided on the other end face of the siphon bend, and an air diffuser is provided on the other end face of the air diffuser bend.

[0008] Furthermore, the height of the bend in the siphon bend is lower than the height of the bend in the diffuser bend.

[0009] Furthermore, the water storage assembly also includes a conical hopper, which is fixed to the bottom of the water storage pan, with one end of the siphon bend extending into the conical hopper. The air diffuser bend is located outside the conical hopper, and the bottom end of the conical hopper is connected to a drain pipe. The bottom end of the drain pipe penetrates the inner wall of the tower body and is connected to the rolling filter assembly.

[0010] Furthermore, the top of the water storage pan is concave and the middle is a circular plane. The siphon bend is circumferentially distributed in the middle of the water storage pan, and the air diffuser bend is circumferentially distributed around the siphon bend.

[0011] Furthermore, the rolling filter assembly includes a drive box, a filter cylinder, a partition, a first rotating shaft, and a second rotating shaft. The drive box is connected to the top of the water tank and located on one side of the tower body. The partition is vertically fixed inside the water tank. One end of the filter cylinder is connected to a support pipe, which rotates horizontally through the partition via a sealed bearing. The filter cylinder is cylindrical and coaxial with the support pipe. The filter cylinder is located inside the water tank, between the partition and the tower body. A conical tooth is fixedly provided on the end of the support pipe away from the filter cylinder. Wheel 1, the rotating shaft 1 passes through the top of the water tank via a bearing, the bottom end of the rotating shaft 1 is fixed with a bevel gear 2, the bevel gear 1 meshes with the bevel gear 2, the top end of the rotating shaft 1 is fixed with a bevel gear 3, the rotating shaft 2 rotates horizontally through the inner walls of the left and right sides of the drive box via a bearing, one end of the rotating shaft 2 is fixed with a bevel gear 4, the bevel gear 4 meshes with the bevel gear 3, the other end of the rotating shaft 2 is fixed with a fan blade, the fan blade is opposite to the air inlet, and the bottom end of the drain pipe is connected to the top of the drive box.

[0012] Furthermore, the rolling filter assembly also includes a scraping unit, which includes a scraper, a spring, a sliding rod, and a horizontal plate. The horizontal plate is fixed to the right side wall of the partition, the sliding rod slides through the horizontal plate, the scraper is fixed at the top of the sliding rod and contacts the bottom of the filter cylinder, and the spring is slidably sleeved on the sliding rod and abuts against the scraper and the horizontal plate.

[0013] Furthermore, the rolling filter assembly also includes an impeller, which is fixedly mounted on the second rotating shaft and located below the bottom end of the drain pipe.

[0014] Furthermore, the spray pipeline includes a main water pipe, a first branch water pipe, a second branch water pipe, and a third branch water pipe. One end of the main water pipe is connected to the outlet end of the pump body. One end of the first branch water pipe is connected to the other end of the main water pipe, and the other end of the first branch water pipe is connected to the spraying mechanism located above the first packing layer. One end of the second branch water pipe is connected to the spraying mechanism located above the second packing layer, and the other end of the second branch water pipe is connected to the main water pipe. One end of the third branch water pipe is connected to the sewage pipe, and the other end of the third branch water pipe is connected to the main water pipe.

[0015] Furthermore, the main water pipe is equipped with a control valve one and a control valve two. The control valve one is located between the branch water pipe one and the branch water pipe two. The control valve two is located between the branch water pipe two and the branch water pipe three. The branch water pipe three is equipped with a control valve three. The sewage pipe is equipped with a control valve four. The control valve four is located below the connection between the branch water pipe three and the sewage pipe.

[0016] The beneficial effects achieved by the present invention using the above structure are as follows:

[0017] 1. Improve the utilization rate of washing liquid and the effect of exhaust gas washing: The water storage component can temporarily store the washing liquid that drips from the packing layer, so that the exhaust gas can mix and contact with the washing liquid in the water storage component, increasing the number of times the exhaust gas is washed. Compared with the traditional mode of purification only through the packing layer, the utilization rate of washing liquid and the effect of exhaust gas washing are improved.

[0018] 2. Automatic filtration and cleaning of impurities: The rolling filter assembly can continuously filter the washing liquid in the water tank. Driven by the exhaust gas and washing liquid, the filter cylinder rotates, and the scraper can automatically remove impurities from its surface to prevent clogging. Compared with the traditional fixed filter screen, it increases the filtration effect, extends the service life of the filter cylinder, and reduces the later maintenance cost.

[0019] 3. Reduced fouling in the packing layer: The washing liquid in the water storage pan enters the water tank through the siphon bend and drain pipe, bypassing the second packing layer. This reduces fouling accumulation in the second packing layer, lowers the risk of blockage, and the concave shape of the water storage pan facilitates the collection of dripping washing liquid to the center, making it easier for the siphon bend to draw it in and for the washing liquid in the water storage pan to drain. When the level of the washing liquid exceeds the height of the bend in the siphon bend, the liquid in the siphon bend begins to enter the conical hopper. Due to the siphon effect of the pipe, the washing liquid in the water storage pan is discharged into the conical hopper through the siphon bend until the liquid level in the water storage pan is lower than the inlet hole, at which point the drainage stops. Then the water storage pan continues to store water, waiting for the next siphon effect to drain, thus achieving the purpose of automatic water storage and drainage.

[0020] 4. Energy Saving: The system utilizes the airflow from the exhaust gas entering the tower to rotate the fan blades. Simultaneously, the impact force of the washing liquid falling from the drain pipe also drives the impeller. The rotation of the fan blades and impeller drives the second rotating shaft, which in turn drives the fourth bevel gear, which in turn drives the third bevel gear, which in turn drives the first rotating shaft. The first rotating shaft then drives the second bevel gear, which in turn drives the first bevel gear, which in turn drives the support pipe, thus rotating the filter cylinder. At this time, the scraper can scrape off impurities on the surface of the filter cylinder, preventing the washing liquid from clogging the filter cylinder. The filter cylinder can be rotated without the need for additional electric drive equipment, saving electricity and reducing later maintenance costs. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a top view of the present invention;

[0024] Figure 3 for Figure 2 Schematic diagram of the cross section at point AA;

[0025] Figure 4 This is a three-dimensional structural diagram of the water storage component in this invention;

[0026] Figure 5 This is a three-dimensional structural schematic diagram of the water storage component in this invention from another perspective;

[0027] Figure 6 This is a top view of the water storage component in this invention;

[0028] Figure 7 for Figure 6 A cross-sectional view at point CC;

[0029] Figure 8 This is a schematic diagram showing the connection relationship between the water tank and the rolling filter assembly in this invention;

[0030] Figure 9 for Figure 8 Top view;

[0031] Figure 10 for Figure 9 Schematic diagram of the cross section at BB;

[0032] Figure 11 for Figure 10 Enlarged view of point A;

[0033] Figure 12 This is a schematic diagram showing the connection relationship between the filter cylinder and the support tube.

[0034] Figure 13 for Figure 12 A cross-sectional schematic diagram.

[0035] The components include: 1. Tower body; 2. Packing layer one; 3. Packing layer two; 4. Spraying mechanism; 5. Rolling filter assembly; 6. Water storage assembly; 7. Pump body; 8. Spraying pipeline; 9. Water tank; 10. Air inlet; 11. Air outlet; 12. Observation port; 61. Water storage tray; 62. Aeration bend; 63. Siphon bend; 64. Conical bucket; 65. Water inlet; 66. Aeration hole; 67. Sewage pipe; 51. Scraping unit; 52. Drive box; 53. Filter cylinder; 54. Isolation... 55. Plate, Rotating Shaft 1, 56. Rotating Shaft 2, 57. Support Pipe, 58. Bevel Gear 1, 59. Bevel Gear 2, 510. Bevel Gear 3, 511. Bevel Gear 4, 512. Fan Blade, 513. Impeller, 5101. Scraper, 5102. Spring, 5103. Sliding Rod, 5104. Horizontal Plate, 81. Water Distribution Pipe 1, 82. Water Distribution Pipe 2, 83. Water Distribution Pipe 3, 84. Control Valve 1, 85. Control Valve 2, 86. Control Valve 3, 87. Control Valve 4, 88. Main Water Pipe. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0037] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0038] like Figures 1-3As shown, the present invention discloses a waste gas purification device, comprising a tower body 1. Inside the tower body 1, from top to bottom, are arranged a first packing layer 2 and a second packing layer 3. Spraying mechanisms 4 are correspondingly arranged above the first packing layer 2 and between the first packing layer 2 and the second packing layer 3. A water tank 9 is connected to one side of the bottom of the tower body 1, and an air inlet 10 is opened on the other side of the bottom of the tower body 1. An air outlet 11 is provided at the top of the tower body 1, and an observation port 12 is provided on the tower body 1. A rolling filter assembly 5 is provided inside the water tank 9, and a water storage assembly 6 is provided inside the tower body 1. The water storage assembly 6 is located between the first packing layer 2 and the second packing layer 3, and above the spraying mechanisms 4 between the first packing layer 2 and the second packing layer 3. The water storage assembly 6 is connected to the rolling filter assembly 5. A pump body 7 is provided on the water tank 9. The inlet end of the pump body 7 extends into the water tank 9, and the outlet end of the pump body 7 is connected to the spraying mechanism 4 and the water storage assembly 6 respectively through a spraying pipe 8 located outside the tower body 1.

[0039] Working principle: The water storage component 6 temporarily stores the washing liquid dripping from the packing layer 2, allowing the exhaust gas to mix and contact with the washing liquid in the water storage component 6, thus purifying the exhaust gas again and improving the utilization rate of the washing liquid. Compared with the traditional purification mode where the exhaust gas only passes through the packing layer, this application adds the water storage component 6, allowing the exhaust gas to mix with the washing liquid in the water storage component 6 again, increasing the washing effect of the exhaust gas. At the same time, the rolling filter component 5 continuously filters the washing liquid in the water tank 9 and automatically cleans the filtered impurities, increasing the filtration effect.

[0040] like Figures 3-7 As shown, the water storage assembly 6 includes a water storage pan 61, an air diffuser bend 62, and a siphon bend 63. The water storage pan 61 is horizontally fixed inside the tower body 1 and located below the packing layer 2. The siphon bend 63 is inverted U-shaped, with one end penetrating the water storage pan 61 and the other end contacting the top of the water storage pan 61. The air diffuser bend 62 is also inverted U-shaped, with one end penetrating the water storage pan 61 and the other end contacting the top of the water storage pan 61. The siphon bend 63 contacts the water storage pan 61. The end face is provided with a water inlet hole 65, and the end face of the venting bend 62 that contacts the water storage pan 61 is provided with a venting hole 66. By opening the water inlet hole 65 at the joint between the siphon bend 63 and the water storage pan 61, the washing liquid in the water storage pan 61 can enter the siphon bend 63 through the water inlet hole 65. By opening the venting hole 66 at the joint between the venting bend 62 and the water storage pan 61, the rising exhaust gas can be discharged into the water storage pan 61 through the venting hole 66 after passing through the venting bend 62, and come into contact with the washing liquid in the water storage pan 61.

[0041] like Figures 3-7As shown, the height of the bend in the siphon bend 63 is lower than the height of the bend in the diffuser bend 62. This is designed so that when the siphon bend 63 experiences a siphon effect during waste gas treatment, the washing liquid in the water storage pan 61 will only be discharged downwards from the siphon bend 63 and will not enter the diffuser bend 62, thus avoiding affecting the passage of waste gas through the diffuser bend 62 and also preventing turbid washing liquid from entering the packing layer 2 3.

[0042] like Figures 3-7 As shown, the water storage component 6 also includes a conical hopper 64, which is fixed to the bottom of the water storage pan 61. One end of the siphon bend 63 extends into the conical hopper 64, and the air diffuser bend 62 is located outside the conical hopper 64. The bottom end of the conical hopper 64 is connected to a drain pipe 67. The bottom end of the drain pipe 67 penetrates the inner wall of the tower body 1 and is connected to the rolling filter component 5. The washing liquid discharged by the siphon bend 63 can be introduced into the drain pipe 67 through the conical hopper 64.

[0043] like Figures 3-7 As shown, the top of the water storage pan 61 is concave and the middle is a circular plane. The siphon bend 63 is distributed around the middle of the water storage pan 61, and the air diffuser bend 62 is distributed around the siphon bend 63.

[0044] The working principle of the water storage component 6: The concave water storage tray 61 facilitates the collection of dripping washing liquid into the middle of the water storage tray 61, which is convenient for the siphon bend 63 to draw in the liquid and facilitates the discharge of the washing liquid in the water storage tray 61. The washing liquid in the water storage tray 61 enters the siphon bend 63 through the water inlet 65. When the liquid level of the washing liquid exceeds the height of the bend of the siphon bend 63, the liquid in the siphon bend 63 begins to enter the conical hopper 64. According to the siphon effect of the pipe, the washing liquid in the water storage tray 61 is discharged into the conical hopper 64 through the siphon bend 63 until the liquid level in the water storage tray 61 is lower than the water inlet 65, at which point the drainage stops. Then the water storage tray 61 continues to store water, waiting for the next siphon effect to drain the water, thus achieving the purpose of automatic water storage and drainage.

[0045] like Figures 8-13As shown, the rolling filter assembly 5 includes a drive box 52, a filter cylinder 53, a partition plate 54, a first rotating shaft 55, and a second rotating shaft 56. The drive box 52 is connected to the top of the water tank 9 and is located on one side of the tower body 1. The partition plate 54 is vertically fixed inside the water tank 9. One end of the filter cylinder 53 is connected to a support pipe 57, which rotates horizontally through the partition plate 54 via a sealed bearing. The filter cylinder 53 is cylindrical and coaxial with the support pipe 57. The filter cylinder 53 is located inside the water tank 9 and between the partition plate 54 and the tower body 1. A bevel gear 5 is fixedly installed on the end of the support pipe 57 away from the filter cylinder 53. 8. Rotary shaft 1 55 passes through the top of water tank 9 via bearing. Bevel gear 2 59 is fixed at the bottom of rotary shaft 1 55. Bevel gear 1 58 meshes with bevel gear 2 59. Bevel gear 3 510 is fixed at the top of rotary shaft 1 55. Rotary shaft 2 56 passes through the inner walls of the left and right sides of drive box 52 via bearing. Bevel gear 4 511 is fixed at one end of rotary shaft 2 56. Bevel gear 4 511 meshes with bevel gear 3 510. Fan blade 512 is fixed at the other end of rotary shaft 2 56. Fan blade 512 is opposite to air inlet 10. The bottom of drain pipe 67 is connected to the top of drive box 52.

[0046] like Figures 8-13 As shown, the rolling filter assembly 5 also includes a scraping unit 51, which includes a scraper 5101, a spring 5102, a sliding rod 5103, and a horizontal plate 5104. The horizontal plate 5104 is fixed to one side wall of the partition 54. The sliding rod 5103 slides through the horizontal plate 5104. The scraper 5101 is fixed to the top of the sliding rod 5103 and contacts the bottom of the filter cylinder 53. The spring 5102 is slidably sleeved on the sliding rod 5103 and abuts against the scraper 5101 and the horizontal plate 5104. By utilizing the elasticity of the spring 5102, the scraper 5101 can be pressed against the filter cylinder 53. When the filter cylinder 53 rotates, the scraper 5101 can scrape off the dirt on the filter cylinder 53.

[0047] like Figures 8-13 As shown, the rolling filter assembly 5 also includes an impeller 513, which is fixed on the rotating shaft 56 and located below the bottom end of the drain pipe 67.

[0048] The working principle of the rolling filter assembly 5: When exhaust gas enters the tower body 1 from the inlet 10, it blows the fan blades 512 to rotate. In the prior art, exhaust gas is usually introduced into the tower body 1 by a centrifugal fan. Therefore, the exhaust gas has an impact force that can drive the blades 512 to rotate. At the same time, the washing liquid falling from the drain pipe 67 also drives the impeller 513 to rotate. The rotation of the fan blades 512 can also agitate the exhaust gas, so that the exhaust gas can pass through the packing layer 2 3 more evenly, and the exhaust gas can contact the washing liquid more evenly. In addition, the rotation of the impeller 513 can also disperse the washing liquid falling from the drain pipe 67, so that the dirt in the washing liquid can fall more dispersedly into the water tank 9. The rotation of the fan blades 512 and the impeller 513 drives the rotating shaft 2 56 to rotate. Rotating shaft 2 56 drives bevel gear 4 511 to rotate, bevel gear 4 511 drives bevel gear 3 510 to rotate, bevel gear 3 510 drives rotating shaft 1 55 to rotate, rotating shaft 1 55 drives bevel gear 2 59 to rotate, bevel gear 2 59 drives bevel gear 1 58 to rotate, which in turn drives support tube 57 to rotate, thereby driving filter cylinder 53 to rotate. At this time, scraper 5101 can scrape off impurities on the surface of filter cylinder 53 to prevent impurities from clogging the filter cylinder 53 and preventing the washing liquid from entering the filter cylinder 53. Compared with the traditional fixed filter screen, the rotating filter cylinder 53 used in this application improves the filtration effect, extends the service life of filter cylinder 53, does not need to be replaced frequently, and reduces the cost of later maintenance.

[0049] like Figures 8-13 As shown, the spray pipeline 8 includes a main water pipe 88, a first branch water pipe 81, a second branch water pipe 82, and a third branch water pipe 83. One end of the main water pipe 88 is connected to the outlet end of the pump body 7. One end of the first branch water pipe 81 is connected to the other end of the main water pipe 88, and the other end of the first branch water pipe 81 is connected to the spray mechanism 4 located above the packing layer 2. One end of the second branch water pipe 82 is connected to the spray mechanism 4 located above the packing layer 3, and the other end of the second branch water pipe 82 is connected to the main water pipe 88. One end of the third branch water pipe 83 is connected to the sewage pipe 67, and the other end of the third branch water pipe 83 is connected to the main water pipe 88.

[0050] like Figures 8-13 As shown, the main water pipe 88 is equipped with control valve 1 84 and control valve 2 85. Control valve 1 84 is located between branch water pipe 1 81 and branch water pipe 2 82. Control valve 2 85 is located between branch water pipe 2 82 and branch water pipe 3 83. Control valve 3 86 is installed on branch water pipe 3 83. Control valve 4 87 is installed on sewage pipe 67. Control valve 4 87 is located below the connection between branch water pipe 3 83 and sewage pipe 67. The spray pipe 8 facilitates the control of the spraying mechanism 4 and the cleaning of sewage pipe 67.

[0051] In practical use, exhaust gas is introduced into the tower body 1 through the air inlet 10. The pump body 7 is started to draw the washing liquid in the water tank into the spraying mechanism 4, and sprays it onto the packing layer 2 and the packing layer 3 through the spraying mechanism 4 (which is a pipe with nozzles, existing technology). The packing layer 2 and the packing layer 3 are both existing technologies, where packing balls are stacked on the grid plate installed in the tower body 1, and the exhaust gas comes into contact with the wetted packing balls after passing through the grid plate. After the exhaust gas is purified by the packing layer 3, it continues to rise. At this time, the exhaust gas enters the water storage pan 61 through the diffuser bend 62. The water storage pan 61 collects the waste gas from the packing layer 2. The washing liquid dripping from the packing layer 2 is mixed again with the washing liquid in the water storage pan 61 when the exhaust gas is sent in from the diffuser bend 62. The exhaust gas is purified again, improving the utilization rate of the washing liquid. After the exhaust gas emerges from the washing liquid in the water storage pan 61, it continues to rise. At this time, the exhaust gas will encounter the washing liquid dripping from the packing layer 2, which will purify the exhaust gas again. After being purified by the packing layer 2, it is discharged from the outlet 11. Compared with the traditional exhaust gas purification mode that only passes through the packing layer, this application adds the water storage pan 61, which allows the exhaust gas to mix again with the washing liquid in the water storage pan 61, increasing the washing effect of the exhaust gas.

[0052] The washing liquid in the water storage pan 61 will enter the siphon bend 63 through the water inlet 65. When the liquid level of the washing liquid exceeds the height of the bend of the siphon bend 63, the liquid in the siphon bend 63 will begin to enter the conical hopper 64. According to the siphon effect of the pipe, the washing liquid in the water storage pan 61 will be discharged into the conical hopper 64 through the siphon bend 63 until the liquid level in the water storage pan 61 is lower than the water inlet 65, at which point the drainage will stop. Then the water storage pan 61 will continue to store water, waiting for the next siphon effect to drain.

[0053] The washing liquid entering the conical hopper 64 will enter the drive box 52 through the drain pipe 67, and then enter the water tank 9. It will no longer pass through the packing layer 2 3 to enter the water tank 9, which can reduce the accumulation of dirt in the packing layer 2 3 and reduce clogging. After being filtered by the filter cylinder 53, the washing liquid in the water tank 9 enters one side of the baffle 54 through the support pipe 57, and is then pumped away again by the pump body 7 to achieve the purpose of recycling.

[0054] When exhaust gas enters the tower body 1 through the air inlet 10, it blows the fan blades 512 to rotate. At the same time, the washing liquid falling from the drain pipe 67 also drives the impeller 513 to rotate. The rotation of the fan blades 512 and the impeller 513 drives the rotating shaft 2 56 to rotate. The rotating shaft 2 56 drives the bevel gear 4 511 to rotate. The bevel gear 4 511 drives the bevel gear 3 510 to rotate. The bevel gear 3 510 drives the rotating shaft 1 55 to rotate. The rotating shaft 1 55 drives the bevel gear 2 59 to rotate. The bevel gear 2 59 drives the bevel gear 1 58 to rotate, which in turn drives the support pipe 57 to rotate, thereby driving the filter cylinder 53 to rotate. At this time, the scraper 5101 can scrape off the impurities on the surface of the filter cylinder 53 to prevent the washing liquid from clogging and entering the filter cylinder 53. Compared with the traditional fixed filter screen, the rotating filter cylinder 53 used in this application increases the filtration effect, extends the service life of the filter cylinder 53, does not need to be replaced frequently, and reduces the cost of later maintenance.

[0055] After prolonged use, dirt from exhaust gas will accumulate inside the air diffuser bend 62 and the drain pipe 67, requiring cleaning. During cleaning, first close control valve 4 87 on the drain pipe 67, then open control valve 3 86, and close control valve 1 84 and control valve 2 85. Start pump 7 to draw the cleaning solution into the drain pipe 67. The cleaning solution flows along the drain pipe 67, the conical hopper 64, and the siphon bend 63 into the water storage pan 61. When the level of the cleaning solution in the water storage pan 61 exceeds that of the air diffuser bend... When the height of the bend at 62 is reached, the washing liquid in the water storage pan 61 is discharged into the water tank 9 at the bottom of the tower body 1 through the air diffuser bend 62. After continuous rinsing for a period of time, the air diffuser bend 62 and the drain pipe 67 can be cleaned. It should be noted that when the packing in the first and second packing layers needs to be replaced, the packing in the packing layer should be cleaned first, and then the air diffuser bend 62 and the drain pipe 67 should be cleaned to prevent the sewage discharged from the air diffuser bend 62 from falling onto the second packing layer 3 and causing pollution to the second packing layer 3.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0057] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0058] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A waste gas purification and treatment device, characterized in that: The tower includes a tower body (1), inside which a packing layer 1 (2) and a packing layer 2 (3) are arranged sequentially from top to bottom. A spraying mechanism (4) is arranged above the packing layer 1 (2) and between the packing layer 1 (2) and the packing layer 2 (3). A water tank (9) is connected to one side of the bottom of the tower body (1), and an air inlet (10) is opened on the other side of the bottom of the tower body (1). An air outlet (11) is provided at the top of the tower body (1), and an observation port (12) is provided on the tower body (1). A rolling filter assembly (5) is provided inside the water tank (9). The tower body (1) is equipped with a water storage component (6), which is located between the first packing layer (2) and the second packing layer (3), and above the spray mechanism (4) between the first packing layer (2) and the second packing layer (3). The water storage component (6) is connected to the rolling filter component (5). The water tank (9) is equipped with a pump body (7), the inlet end of the pump body (7) extends into the water tank (9), and the outlet end of the pump body (7) is connected to the spray mechanism (4) and the water storage component (6) respectively through the spray pipe (8) set outside the tower body (1). The water storage component (6) includes a water storage pan (61), an air diffuser bend (62), and a siphon bend (63). The water storage pan (61) is horizontally fixed inside the tower body (1) and located below the packing layer (2). The siphon bend (63) is inverted U-shaped. One end of the siphon bend (63) passes through the water storage pan (61), and the other end of the siphon bend (63) contacts the top of the water storage pan (61). The air diffuser bend (62) is inverted U-shaped. One end of the air diffuser bend (62) passes through the water storage pan (61), and the other end of the air diffuser bend (62) contacts the top of the water storage pan (61). A water inlet hole (65) is provided on the other end face of the siphon bend (63), and an air diffuser hole (66) is provided on the other end face of the air diffuser bend (62). The height of the bend in the siphon bend (63) is lower than the height of the bend in the diffuser bend (62); The water storage component (6) also includes a conical bucket (64), which is fixed to the bottom of the water storage pan (61), and one end of the siphon bend (63) extends into the conical bucket (64). The air diffuser bend (62) is located outside the conical bucket (64). The bottom end of the conical bucket (64) is connected to a drain pipe (67), and the bottom end of the drain pipe (67) penetrates the inner wall of the tower body (1) and is connected to the rolling filter component (5). The top of the water storage pan (61) is concave and the middle is a circular plane. The siphon bend (63) is circumferentially distributed in the middle of the water storage pan (61), and the air diffuser bend (62) is circumferentially distributed around the siphon bend (63).

2. The waste gas purification and treatment device according to claim 1, characterized in that: The rolling filter assembly (5) includes a drive box (52), a filter cylinder (53), a partition plate (54), a first rotating shaft (55), and a second rotating shaft (56). The drive box (52) is connected to the top of the water tank (9) and is located on one side of the tower body (1). The partition plate (54) is vertically fixed inside the water tank (9). One end of the filter cylinder (53) is connected to a support pipe (57). The support pipe (57) rotates horizontally through the partition plate (54) via a sealed bearing. The filter cylinder (53) is cylindrical and coaxial with the support pipe (57). The filter cylinder (53) is located inside the water tank (9) and between the partition plate (54) and the tower body (1). A bevel gear (56) is fixed on the end of the support pipe (57) away from the filter cylinder (53). 8) The first rotating shaft (55) passes through the top of the water tank (9) through the bearing. The bottom end of the first rotating shaft (55) is fixedly provided with a second bevel gear (59). The first bevel gear (58) meshes with the second bevel gear (59). The top end of the first rotating shaft (55) is fixedly provided with a third bevel gear (510). The second rotating shaft (56) passes through the inner walls of the left and right sides of the drive box (52) through the bearing. One end of the second rotating shaft (56) is fixedly provided with a fourth bevel gear (511). The fourth bevel gear (511) meshes with the third bevel gear (510). The other end of the second rotating shaft (56) is fixedly provided with a fan blade (512). The fan blade (512) is opposite to the air inlet (10). The bottom end of the drain pipe (67) is connected to the top of the drive box (52).

3. The waste gas purification and treatment device according to claim 2, characterized in that: The rolling filter assembly (5) further includes a scraping unit (51), which includes a scraper (5101), a spring (5102), a sliding rod (5103), and a horizontal plate (5104). The horizontal plate (5104) is fixed on the right side wall of the partition (54). The sliding rod (5103) slides through the horizontal plate (5104). The scraper (5101) is fixed at the top of the sliding rod (5103) and contacts the bottom of the filter cylinder (53). The spring (5102) is slidably sleeved on the sliding rod (5103) and abuts against the scraper (5101) and the horizontal plate (5104).

4. The waste gas purification and treatment device according to claim 2, characterized in that: The rolling filter assembly (5) also includes an impeller (513), which is fixed on the rotating shaft (56) and located below the bottom end of the drain pipe (67).

5. The waste gas purification and treatment device according to claim 1, characterized in that: The spray pipeline (8) includes a main water pipe (88), a first branch water pipe (81), a second branch water pipe (82), and a third branch water pipe (83). One end of the main water pipe (88) is connected to the outlet end of the pump body (7). One end of the first branch water pipe (81) is connected to the other end of the main water pipe (88). The other end of the first branch water pipe (81) is connected to the spray mechanism (4) located above the first packing layer (2). One end of the second branch water pipe (82) is connected to the spray mechanism (4) located above the second packing layer (3). The other end of the second branch water pipe (82) is connected to the main water pipe (88). One end of the third branch water pipe (83) is connected to the sewage pipe (67). The other end of the third branch water pipe (83) is connected to the main water pipe (88).

6. The waste gas purification and treatment device according to claim 5, characterized in that: The main water pipe (88) is equipped with a control valve one (84) and a control valve two (85). The control valve one (84) is located between the branch water pipe one (81) and the branch water pipe two (82). The control valve two (85) is located between the branch water pipe two (82) and the branch water pipe three (83). The branch water pipe three (83) is equipped with a control valve three (86). The sewage pipe (67) is equipped with a control valve four (87). The control valve four (87) is located below the connection between the branch water pipe three (83) and the sewage pipe (67).

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