A waste gas treatment anti-fouling type mist eliminator

Abstract

This utility model relates to the field of waste gas demisting technology, and particularly to a waste gas treatment anti-scaling demisting device, comprising a housing with a demisting chamber. One end of the housing has an air inlet connected to the demisting chamber, and the other end has an air outlet connected to the demisting chamber. A demisting mechanism is installed along the direction from the air inlet to the air outlet in the demisting chamber. The demisting mechanism demistifies the waste gas entering from the air inlet and discharges it from the air outlet, forming a demisting path. A rotating shaft is provided along the horizontal axis of the demisting chamber, with one end of the shaft near the air inlet and the other end near the air outlet. The rotating shaft is connected to a drive mechanism located on the outer periphery of the housing. Multiple water-spraying discs are spaced along the demisting path on the rotating shaft. The inner wall of the demisting chamber is circumferentially connected to the outer periphery of the water-spraying discs. The housing has a spray structure facing the water-spraying discs. This utility model aims to improve the demisting efficiency of the demisting device.

Description

Technical Field

[0001] This utility model relates to the field of waste gas defogging technology, and in particular to a waste gas treatment anti-scaling defogging device. Background Technology

[0002] Industrial production generates a large amount of organic waste gas that needs to be treated in a timely manner. This waste gas is usually passed into purification equipment such as packed towers and cyclone plate towers to remove dust, organic particles and other substances. However, because the waste gas carries a large number of mist droplets, the large number of mist droplets entering the purification equipment will put great pressure on the operation of the purification equipment and may even directly cause damage to the purification equipment. Therefore, a demisting device is usually installed upstream of the purification path of the purification equipment to protect it.

[0003] Existing exhaust gas demisting and separation devices typically employ an air inlet and an air outlet set on both sides of a hollow box, with multiple demisting nets and air-blocking guide plates installed inside the box. When gas needs to pass through the above structure, it will collide with the structure, causing small droplets to aggregate and separate from the gas. However, this structure is relatively complex and inconvenient to clean, and it relies solely on active gas collision, resulting in low demisting efficiency. Utility Model Content

[0004] The main purpose of this utility model is to provide a defogging device for treating exhaust gas that prevents scaling, aiming to improve the defogging efficiency of the device.

[0005] To achieve the above objectives, this utility model proposes a waste gas treatment anti-scaling demisting device, comprising a housing, wherein the housing has a demisting chamber, one end of the housing has an air inlet communicating with the demisting chamber, and the other end has an air outlet communicating with the demisting chamber, wherein a demisting mechanism is provided through the demisting chamber along the direction from the air inlet to the air outlet, the demisting mechanism demisting the waste gas entering from the air inlet and discharging it from the air outlet, forming a demisting path;

[0006] The demisting mechanism has a rotating shaft along the horizontal axis of the demisting chamber. One end of the rotating shaft is located near the air inlet, and the other end is located near the air outlet. The rotating shaft is connected to a drive mechanism located on the outer periphery of the housing. Multiple water-spraying discs are spaced along the demisting path on the rotating shaft. The inner wall of the demisting chamber is circumferentially connected to the outer periphery of the water-spraying discs. The housing has a spray structure facing the water-spraying discs.

[0007] In one embodiment of this application, the water-spraying plate includes a base coaxially connected to the rotating shaft and water-spraying blades circumferentially disposed on the outer periphery of the base and connected to the inner wall of the demisting chamber. Multiple water-spraying blades are provided, and the extension direction of the water-spraying blades is arranged opposite to the rotation direction of the water-spraying plate. The water-spraying blades have water-spraying ridges protruding upstream of the demisting path.

[0008] In one embodiment of this application, a reinforcing portion is connected to a plurality of the water-spraying plates, the reinforcing portion and the base are coaxially arranged, and the reinforcing portion has a water-spraying sub-plate between two adjacent water-spraying plates.

[0009] In one embodiment of this application, the rotating shaft is provided with a plurality of first gears relative to a plurality of water-spraying discs, the first gears are inserted through the base, the inner wall of the base is provided with an inner gear relative to the first gears, and a second gear is provided between the first gears and the inner gears.

[0010] In one embodiment of this application, the radius of the plurality of first gears gradually decreases along the direction from the beginning to the end of the defogging path.

[0011] In one embodiment of this application, the inner wall of the demisting chamber is provided with a liquid guiding groove around the outer periphery of the water-spinning plate, and the outer periphery of the water-spinning plate is connected to the bottom of the liquid guiding groove; one end of the liquid guiding groove is provided with a guide portion relative to the water-spinning plate, the guide portion is located on the side of the liquid guiding groove facing the air inlet, and the thickness of the guide portion gradually decreases along the direction from the beginning end to the end end of the demisting path.

[0012] In one embodiment of this application, the spray structure is provided with multiple spray plates relative to multiple water-spraying plates, the spray structure is located on the top of the housing, and the spray structure passes through the guide portion and is arranged towards the water-spraying plates.

[0013] In one embodiment of this application, the air outlet is provided with an air filter.

[0014] In one embodiment of this application, the bottom array of the housing is provided with multiple support feet.

[0015] By adopting the above technical solution, this utility model has the following advantages:

[0016] The demisting device has an air inlet and an air outlet on both sides of its housing, and a demisting chamber inside the housing. The demisting chamber is equipped with a demisting mechanism arranged along the direction from the air inlet to the air outlet. Exhaust gas can enter through the air inlet, pass through the demisting mechanism, and be discharged from the air outlet. The whole process forms a demisting path for separating small water droplets in the exhaust gas, thereby improving the demisting efficiency of the demisting device.

[0017] To ensure efficient demisting, the demisting mechanism itself includes a rotating shaft, a drive mechanism, and a water-spinning disc. The rotating shaft is set along the horizontal axis of the demisting chamber, making the arrangement of multiple water-spinning discs more stable and facilitating the installation of the drive mechanism that drives the rotating shaft. Generally, the air inlet is located below the drive mechanism, allowing the air outlet to be located above the rotating shaft. This ensures that the air outlet is as far away from the discharged water as possible, improving the demisting effect. With the help of the rotating shaft, the water-spinning disc rotates at high speed. When exhaust gas passes through, it collides at high speed with the surface of the water-spinning disc and is thrown onto the inner wall of the demisting chamber under centrifugal force. At the same time, a large number of small droplets are thrown onto the inner wall, causing these droplets to aggregate and achieve separation from the gas. The inner wall of the demisting chamber is connected to the outer periphery of the water-spinning disc, preventing the gas from leaving directly without passing through the water-spinning disc. Through the above structure, the purpose of improving demisting efficiency can be achieved.

[0018] Multiple spray structures can be installed on the shell, with the spray structures facing the water-spinning plate. When it is necessary to clean the demisting device to prevent scaling, the demisting mechanism is also turned on. At this time, the air inlet does not need to be filled with air, but the spray structure is turned on. While the water is washing the water-spinning plate at high speed, it can clean the inner wall of the demisting chamber under the action of centrifugal force, thus achieving the purpose of preventing scaling of the demisting device. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the anti-scaling demisting device for waste gas treatment according to this utility model;

[0021] Figure 2 This is a cross-sectional view of the anti-scaling demisting device for waste gas treatment according to this utility model;

[0022] Figure 3 This is a schematic diagram of the demisting mechanism of the anti-scaling demisting device for waste gas treatment according to this utility model;

[0023] Figure 4 This is a schematic diagram of the water-spinning disc of the anti-scaling demister device for waste gas treatment according to this utility model;

[0024] Figure 5 This is a schematic diagram of the water-spinning plate of the anti-scaling demister device for exhaust gas treatment according to this utility model.

[0025] Explanation of icon numbers:

[0026] 1. Shell; 11. Demisting chamber; 12. Liquid guiding groove; 13. Guide part; 14. Air inlet; 15. Air outlet; 16. Drain outlet; 2. Spray structure; 3. Demisting mechanism; 31. Drive mechanism; 4. Rotating shaft; 41. First gear; 5. Water-slinging plate; 51. Base; 52. Water-slinging blade; 53. Water-slinging ridge; 54. Reinforcing part.

[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0029] The following is in conjunction with the appendix Figures 1 to 5 The present invention will be further described below.

[0030] To achieve the above objectives, this utility model proposes a waste gas treatment anti-scaling demisting device, including a housing 1, a demisting chamber 11, an air inlet 14 communicating with the demisting chamber 11 at one end of the housing 1, and an air outlet 15 communicating with the demisting chamber 11 at the other end. A demisting mechanism 3 is provided through the demisting chamber 11 along the direction from the air inlet 14 to the air outlet 15. The demisting mechanism 3 demistates the waste gas entering from the air inlet 14 and discharges it from the air outlet 15, forming a demisting path.

[0031] The demisting mechanism 3 has a rotating shaft 4 along the horizontal axis of the demisting chamber 11. One end of the rotating shaft 4 is located near the air inlet 14, and the other end is located near the air outlet 15. The rotating shaft 4 is connected to a drive mechanism 31 located on the outer periphery of the housing 1. Multiple water-spraying discs 5 are spaced along the demisting path on the rotating shaft 4. The inner wall of the demisting chamber 11 is circumferentially connected to the outer periphery of the water-spraying discs 5. The housing 1 has a spray structure 2 facing the water-spraying discs 5.

[0032] The housing 1 of the demisting device is provided with an air inlet 14 and an air outlet 15 on both sides, and a demisting chamber 11 is provided inside the housing 1. At the same time, a demisting mechanism 3 is provided in the demisting chamber 11 along the direction from the air inlet 14 to the air outlet 15. Exhaust gas can enter from the air inlet 14, pass through the demisting mechanism 3 and be discharged from the air outlet 15. The whole process forms a demisting path for separating small water droplets in the exhaust gas, thereby improving the demisting efficiency of the demisting device.

[0033] To ensure efficient demisting, the demisting mechanism 3 itself includes a rotating shaft 4, a drive mechanism 31, and a water-spinning plate 5. The rotating shaft 4 is set along the horizontal axis of the demisting chamber 11, which makes the arrangement of multiple water-spinning plates 5 more stable and facilitates the installation of the drive mechanism 31 used to drive the rotating shaft 4. Generally, the air inlet 14 is located below the drive mechanism 31, so that the air outlet 15 can be located above the rotating shaft 4, making the position of the air outlet 15 as separate as possible from the discharged water, which can improve the demisting effect. With the help of the rotating shaft 4, the water-spinning plate 5 rotates at high speed. When the exhaust gas passes through, the exhaust gas will collide with the surface of the water-spinning plate 5 at high speed and be thrown onto the inner wall of the demisting chamber 11 under the action of centrifugal force. At the same time, a large number of small droplets will be thrown onto the inner wall, which will aggregate and achieve the effect of separation from the gas. The inner wall of the demisting chamber 11 is connected to the outer periphery of the water-spinning plate 5, which can prevent the gas from leaving directly without passing through the water-spinning plate 5. Through the above structure, the purpose of improving the demisting efficiency can be achieved.

[0034] Multiple spray structures 2 can be installed on the housing 1. The spray structures 2 are set towards the water-spinning plate 5. When it is necessary to clean the demisting device to prevent scaling, the demisting mechanism 3 is also opened. At this time, the air inlet 14 does not need to be filled with air, while the spray structure 2 is opened. At the same time, the water washes the water-spinning plate 5 at high speed and can clean the inner wall of the demisting chamber 11 under the action of centrifugal force, so as to achieve the purpose of preventing scaling of the demisting device.

[0035] In one embodiment of this application, the water-spraying plate 5 includes a base 51 coaxially connected to the rotating shaft 4, and water-spraying blades 52 circumferentially disposed on the outer periphery of the base 51 and connected to the inner wall of the demisting chamber 11. Multiple water-spraying blades 52 are provided, and the extension direction of the water-spraying blades 52 is arranged away from the rotation direction of the water-spraying plate 5. Water-spraying ridges 53 protrude from the upstream of the demisting path of the water-spraying blades 52.

[0036] The water-spinning plate 5 includes a base 51 and water-spinning plates 52. The water-spinning plates 52 are arc-shaped with the apex facing the rotation direction of the water-spinning plate 5. Multiple water-spinning plates 52 are provided and are circumferentially connected to the outer periphery of the base 51. When the water-spinning plate 5 rotates, small water droplets will hit the surface of the water-spinning plate 5 and be thrown along the water-spinning plates 52 and eventually towards the inner wall of the demisting chamber 11. The water-spinning plates 52 have water-spinning ridges 53 facing upstream of their demisting path. The water-spinning ridges 53 can increase the contact area between the water-spinning plates 52 and the exhaust gas to improve the demisting effect.

[0037] In one embodiment of this application, a reinforcing part 54 is connected to a plurality of water-spraying blades 52. The reinforcing part 54 and the base 51 are coaxially arranged. The reinforcing part 54 has a water-spraying sub-blade between two adjacent water-spraying blades 52.

[0038] The reinforcing part 54 is a complete connecting ring, which is used to stabilize the structure of the water-spraying plate 52 and prevent the structure of the water-spraying plate 52 itself from being damaged. The reinforcing part 54 has water-spraying sub-plates between adjacent water-spraying plates 52 and at the same angle as the water-spraying plates 52, which is used to increase the structural density of the water-spraying plate 5 and achieve high-efficiency water spraying.

[0039] In one embodiment of this application, the rotating shaft 4 is provided with a plurality of first gears 41 relative to a plurality of water-spraying discs 5. The first gears 41 pass through the base 51. The inner wall of the base 51 is provided with an inner gear relative to the first gears 41. A second gear is provided between the first gears 41 and the inner gear.

[0040] In one feasible embodiment, the base 51 is only connected to the rotating shaft 4, and the two are slidably connected. The rotating shaft 4 is provided with a first gear 41, which is located inside the base 51. An internal gear is provided on the inner wall of the base 51 relative to the first gear 41. A second gear is provided in the bottom inner wall of the base 51. One end of the second gear is connected to the first gear 41, and the other end is connected to the internal gear. In this way, when the first gear 41 is working, it can drive the second gear to rotate, and the second gear drives the internal gear, thereby causing the water-spinning disc 5 to rotate. This structure has a graded deceleration effect and can also achieve an energy storage effect, which is used to accumulate kinetic energy for the water-spinning disc 5 and improve the water-spinning effect.

[0041] In one embodiment of this application, the radius of the plurality of first gears 41 gradually decreases along the direction from the beginning to the end of the defogging path.

[0042] In one feasible embodiment, the rotating shaft 4 is provided with a plurality of first gears 41, and the smaller the radius of the first gear 41 that is closer to the starting end A of the demisting path, the higher the reduction ratio of the first gear 41 that is closer to the air inlet 14 can be, and at the same time the water-slinging force of the water-slinging disc 5 that is closer to the air inlet 14 can be increased. Under this structure, the water-slinging disc 5 that is downstream of the demisting path has a higher rotation speed, which can effectively prevent incomplete demisting.

[0043] In one embodiment of this application, the inner wall of the demisting chamber 11 is provided with a liquid guiding groove 12 around the outer periphery of the water-spinning plate 5, and the outer periphery of the water-spinning plate 5 is connected to the bottom of the liquid guiding groove 12; one end of the liquid guiding groove 12 is provided with a guide portion 13 opposite to the water-spinning plate 5, the guide portion 13 is located on the side of the liquid guiding groove 12 facing the air inlet 14, and the thickness of the guide portion 13 gradually decreases along the direction from the beginning end to the end end of the demisting path.

[0044] The inner wall of the demisting chamber 11 is provided with a liquid guiding groove 12 surrounding the water-throwing plate 5. The liquid guiding groove 12 can effectively prevent water splashing and can intercept the water that is thrown out. The side of the liquid guiding groove 12 near the air inlet 14 is cut with a slope to serve as a guide part 13. The slope is set along the end point B to the beginning point A of the demisting path. The guide part 13 is used to increase the contact area between the guide groove and the splashed water, thereby improving the anti-splashing effect.

[0045] The bottom of the liquid guiding tank 12 is connected to a drainage tank. The drainage tank has a drain outlet 16 at the bottom of the housing. The drain outlet 16 is located below the air inlet 14 and is used to discharge the separated water so that the demisting chamber 11 can be cleaner.

[0046] In one embodiment of this application, a plurality of spray structures 2 are provided opposite to a plurality of water-spraying trays 5. The spray structures 2 are located on the top of the housing 1 and pass through the guide portion 13 and are arranged toward the water-spraying trays 5.

[0047] The housing 1 is equipped with multiple spray structures 2. Generally, in order to improve the cleaning effect and avoid the spray head from being contaminated, the spray structure 2 is located at the top of the housing 1. The spray structure 2 passes through the guide part 13 and is set towards the water-spraying plate 5, which can effectively improve the cleaning effect and effectively prevent the defogging device from being contaminated.

[0048] In one embodiment of this application, the air outlet 15 is provided with an air filter.

[0049] An air filter screen is installed at the air outlet 15 of the demisting device, which can be used to improve the demisting effect.

[0050] In one embodiment of this application, the bottom array of the housing 1 is provided with multiple support legs; the support can make the whole structure more stable and effectively prevent damage to the structure of the defogging device.

[0051] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," 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 application 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, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0052] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An anti-fouling type mist eliminator for exhaust gas treatment comprising a housing, characterized by, The housing has a demisting chamber. One end of the housing has an air inlet connected to the demisting chamber, and the other end has an air outlet connected to the demisting chamber. A demisting mechanism is installed in the demisting chamber along the direction from the air inlet to the air outlet. The demisting mechanism demistates the exhaust gas entering from the air inlet and discharges it from the air outlet, forming a demisting path. The demisting mechanism has a rotating shaft along the horizontal axis of the demisting chamber. One end of the rotating shaft is located near the air inlet, and the other end is located near the air outlet. The rotating shaft is connected to a drive mechanism located on the outer periphery of the housing. Multiple water-spraying discs are spaced along the demisting path on the rotating shaft. The inner wall of the demisting chamber is circumferentially connected to the outer periphery of the water-spraying discs. The housing has a spray structure facing the water-spraying discs.

2. The anti-fouling mist eliminator for exhaust gas treatment according to claim 1, characterized by The water-spraying disc includes a base coaxially connected to the rotating shaft, and water-spraying blades circumferentially disposed on the outer periphery of the base and connected to the inner wall of the demisting chamber. Multiple water-spraying blades are provided, and the extension direction of the water-spraying blades is arranged opposite to the rotation direction of the water-spraying disc. The water-spraying blades have water-spraying ridges protruding upstream of the demisting path.

3. The anti-fouling mist eliminator for exhaust gas treatment according to claim 2, characterized by A reinforcing section is connected to a plurality of the water-spraying plates, the reinforcing section and the base are coaxially arranged, and the reinforcing section has a water-spraying sub-plate between two adjacent water-spraying plates.

4. The anti-fouling mist eliminator for exhaust gas treatment according to claim 2, characterized by The rotating shaft is provided with multiple first gears relative to multiple water-spraying discs. The first gears pass through the base. The inner wall of the base is provided with an inner gear relative to the first gears. A second gear is provided between the first gears and the inner gears.

5. The anti-fouling mist eliminator for exhaust gas treatment according to claim 4, characterized by The radii of the plurality of first gears gradually decrease along the direction from the beginning to the end of the demisting path.

6. The anti-fouling mist eliminator for exhaust gas treatment according to claim 1, wherein The inner wall of the demisting chamber is provided with a liquid guiding groove around the outer periphery of the water-spinning plate, and the outer periphery of the water-spinning plate is connected to the bottom of the liquid guiding groove; one end of the liquid guiding groove is provided with a guide part relative to the water-spinning plate, the guide part is located on the side of the liquid guiding groove facing the air inlet, and the thickness of the guide part gradually decreases along the direction from the beginning end to the end end of the demisting path.

7. The anti-fouling mist eliminator for exhaust gas treatment according to claim 6, characterized by The spray structure is provided in multiple ways relative to the multiple water-spraying plates. The spray structure is located on the top of the shell and passes through the guide portion and is arranged towards the water-spraying plates.

8. The anti-fouling mist eliminator for exhaust gas treatment according to claim 1, characterized by The air outlet is equipped with an air filter.

9. The anti-fouling mist eliminator for exhaust gas treatment according to claim 1, characterized by The bottom array of the housing is provided with multiple support legs.

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