Absorption tower demisting device

Abstract

The utility model belongs to the technical field of waste gas treatment, specifically, an absorption tower demisting device, comprising a base; an absorption tower main body is fixedly installed on the base, a demisting box is fixedly installed on the top of the absorption tower main body, a roller is arranged in the demisting box, both ends of the roller are rotatably installed in the demisting box, a plurality of air inlet holes are evenly opened on the outer surface of the roller, a gauze is fixedly installed on the outer surface of the roller, baffles are obliquely arranged on both sides of the roller, a spray pipe is arranged on the top of the absorption tower main body, an air intake grille is arranged below the spray pipe and is fixedly installed in the absorption tower main body, a ball ring is fixedly installed on the upper part of the air intake grille, an air inlet is opened on one side of the lower end of the absorption tower, and an air inlet is fixedly connected to the air inlet; the air is demisted by rotating the roller, and the smoke and dust in the air are filtered through the gauze to prevent the smoke and dust from condensing on the drum surface and affecting the demisting effect.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to an absorption tower demisting device. Background Art

[0002] Absorption tower is a kind of equipment that realizes absorption operation, usually used to treat harmful substances in gas, or for mass transfer between gas and liquid. Absorption tower is widely used in the fields of waste gas treatment, desulfurization, denitrification, as well as in the production process of chemical, electric power, petrochemical and other industries.

[0003] The working principle of the defogger is mainly to use the inertia of fog particles in the moving airflow. By suddenly changing the direction of the fog-containing airflow, the direction of the airflow changes. The fog particles deviate from the airflow under the action of inertia, hit the corrugated plate and are separated.

[0004] Existing defoggers usually use defogger plates to clean the mist in the absorption tower. The smoke in the mist condenses on the defogger plates during the liquefaction process of the mist, affecting the contact area and adhesion between the water mist and the plate surface, thereby reducing the defogger effect. Therefore, an absorption tower defogger is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the shortcomings of the prior art, the existing defogger usually uses a defogger plate to clean the mist in the absorption tower. The smoke in the mist condenses on the defogger plate during the liquefaction process of the mist, affecting the contact area and adhesion between the water mist and the plate surface, thereby reducing the defogger effect. The utility model proposes a defogger device for an absorption tower.

[0006] The technical solution adopted by the utility model to solve its technical problems is: an absorption tower demisting device described in the utility model comprises a base; an absorption tower body is fixedly installed on the base, a demisting box is fixedly installed on the top of the absorption tower body, a roller is arranged in the demisting box, both ends of the roller are rotatably installed in the demisting box, a plurality of air inlet holes are evenly opened on the outer surface of the roller, a gauze is fixedly installed on the outer surface of the roller, baffles are obliquely arranged on both sides of the roller, a spray pipe is arranged on the top of the absorption tower body, an air intake grille is arranged below the spray pipe and is fixedly installed in the absorption tower body, the air intake A ball ring is fixedly installed on the upper part of the air grille plate, an air inlet is opened on one side of the lower end of the absorption tower body, and an air inlet pipe is fixedly connected to the air inlet, a liquid storage tank is provided on one side of the absorption tower body, and a water pump is provided on one side of the liquid storage tank, a water suction pipe is fixedly connected to one side of the lower end of the liquid storage tank, and the other end of the water suction pipe is fixedly connected to the water pump, and a connecting pipe is fixedly connected to the water outlet end of the water pump, and the upper end of the connecting pipe is fixedly connected to one side of the upper end of the absorption tower body and extends to the inside and is fixedly connected to the spray pipe, the air is demisted by the rotation of the drum, and the smoke and dust in the air are filtered through the gauze to prevent the smoke and dust from condensing on the drum surface and affecting the demisting effect.

[0007] Preferably, an air outlet is provided on the top of the defogger box, an exhaust pipe is fixedly connected to the air outlet, support columns are fixedly installed on four sides of the upper part of the top cross-section of the exhaust pipe, a rain shield is fixedly installed on the top of the support column, and a plurality of exhaust holes are evenly provided on the outer surface of the top of the exhaust pipe. The rain shield is used to prevent rainwater from entering the defogger box through the exhaust pipe in rainy and snowy weather and affecting the defogger effect.

[0008] Preferably, one end of the drum passes through the surface of one side of the defogger box and is fixedly installed with a toothed disc, a gear box is fixedly installed on the box body on one side of the defogger box, the toothed disc is rotatably arranged inside the gear box, a rotating gear is arranged below the toothed disc, the rotating gear is meshed with the toothed disc, a motor is fixedly installed at the lower end of the outer side of the gear box, the rotating shaft of the motor is fixedly connected to the rotating gear, and the drum is driven to rotate through the toothed disc.

[0009] Preferably, a drain pipe is fixedly connected to the outer wall on the other side of the demister box, the drain pipe is connected to the inside of the drum, the lower end of the drain pipe is fixedly connected to the lower end of the absorption tower body and is connected to the inside of the absorption tower body, and the liquid inside the drum is discharged into the bottom of the absorption tower body through the drain pipe.

[0010] Preferably, a soft brush is obliquely provided on one side of the lower part of the drum, and both ends of the soft brush are fixedly mounted on the inner walls of both sides of the defogger box. The soft brush is tangent to the drum, and the surface of the gauze is cleaned by the soft brush to prevent the mesh from being clogged.

[0011] Preferably, a drain pipe is fixedly connected to one side of the bottom end of the absorption tower body, and a control valve is provided in the drain pipe, so that the liquid at the bottom of the absorption tower body is discharged through the drain pipe.

[0012] The utility model is beneficial in that:

[0013] 1. The utility model starts the water pump when using the absorption tower demisting device, extracts the absorption liquid in the liquid storage tank through the water pumping pipe, and then pumps it into the spray pipe through the connecting pipe to spray it in the absorption tower body, so that the absorption tower body is filled with absorption liquid mist, and blows the exhaust gas from the air intake pipe into the absorption tower body through the fan. The exhaust gas is evenly distributed through the air intake grid plate and the ball ring, and reacts with the absorption liquid. Then the gas enters the demisting box through the atomizing pipe, enters the drum through the gauze, and starts the motor to drive the rotating gear to rotate, and the rotating gear drives the drum to rotate through the gear plate The mist collides with each other inside the drum and condenses into liquid. At the same time, a soft brush cleans the dust particles attached to the surface of the rotating gauze. After the mist in the gas condenses, the clean gas passes through the gauze and the exhaust pipe to the outside. The structural design realizes the function of automatic cleaning defogger, solves the problem that the existing defogger usually uses the defogger plate to clean the mist in the absorption tower, and the smoke in the mist condenses on the defogger plate during the liquefaction process of the mist, affecting the contact area and adhesion between the water mist and the plate surface, thereby reducing the defogger effect. The reliability of the defogger improves the reliability of the defogger. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a schematic diagram of the structure of one side of the absorption tower;

[0016] Figure 2 This is a schematic diagram of the structure on the other side of the absorption tower;

[0017] Figure 3 It is a schematic diagram of the internal structure of the absorption tower and the demisting box;

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the demisting box;

[0019] Figure 5 Schematic diagram of the internal structure of the gearbox.

[0020] In the figure: 1. base; 2. absorption tower body; 3. defogger box; 4. exhaust pipe; 5. rain shield; 6. support column; 7. roller; 8. mesh; 9. toothed disc; 10. gear box; 11. motor; 12. rotating gear; 13. drain pipe; 14. baffle; 15. soft brush; 16. spray pipe; 17. connecting pipe; 18. ball ring; 19. air intake grille plate; 20. drain pipe; 21. control valve; 22. water pump; 23. water suction pipe; 24. liquid storage tank; 25. air intake pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5As shown, an absorption tower demisting device comprises a base 1; an absorption tower body 2 is fixedly mounted on the base 1, a demisting box 3 is fixedly mounted on the top of the absorption tower body 2, a drum 7 is arranged in the demisting box 3, both ends of the drum 7 are rotatably mounted in the demisting box 3, a plurality of air inlet holes are evenly opened on the outer surface of the drum 7, a gauze 8 is fixedly mounted on the outer surface of the drum 7, baffles 14 are obliquely arranged on both sides of the drum 7, a spray pipe 16 is arranged at the top of the absorption tower body 2, and an air intake grille plate 19 is fixed below the spray pipe 16. Installed inside the absorption tower body 2, a ball ring 18 is fixedly installed on the upper part of the air intake grille plate 19, an air inlet is opened on one side of the lower end of the absorption tower body 2, and an air inlet pipe 25 is fixedly connected to the air inlet, a liquid storage tank 24 is arranged on one side of the absorption tower body 2, a water pump 22 is arranged on one side of the liquid storage tank 24, a water suction pipe 23 is fixedly connected to one side of the lower end of the liquid storage tank 24, and the other end of the water suction pipe 23 is fixedly connected to the water pump 22, and the water outlet end of the water pump 22 is fixedly connected to a connecting pipe 17, and the upper end of the connecting pipe 17 is fixedly connected to one side of the upper end of the absorption tower body 2 And it extends to the inside and is fixedly connected to the spray pipe 16; when working, the existing demisting device usually uses a demisting plate to clean the mist in the absorption tower. The smoke in the mist condenses on the demisting plate during the liquefaction process of the mist, affecting the contact area and adhesion between the water mist and the plate surface, thereby reducing the demisting effect. When using the demisting device for the absorption tower, start the water pump 22, extract the absorption liquid in the liquid storage tank 24 through the water suction pipe 23, and then pump it into the spray pipe 16 through the connecting pipe 17 for atomization and spraying in the absorption tower body 2, so that the absorption tower body 2 is filled with absorption liquid mist, and the exhaust gas is blown out from the absorption tower body 2 through the fan. The air intake pipe 25 blows into the absorption tower body 2, and the exhaust gas is evenly distributed through the air intake grille plate 19 and the ball ring 18, and reacts with the absorption liquid. Then the gas enters the demisting box 3 through the atomizing pipe, and enters the drum 7 through the gauze 8. The starting motor 11 drives the rotating gear 12 to rotate, and the rotating gear 12 drives the drum 7 to rotate through the gear plate 9. The mist collides with each other inside the drum 7 and condenses into liquid. At the same time, the soft brush 15 cleans the dust particles attached to the surface of the rotating gauze 8. After the mist in the gas condenses, the clean gas passes through the gauze 8 and the exhaust pipe 4 to the outside.

[0023] An air outlet is provided at the top of the defogger box 3, an exhaust pipe 4 is fixedly connected to the air outlet, support columns 6 are fixedly installed on four sides of the upper part of the top cross-section of the exhaust pipe 4, a rain shield 5 is fixedly installed on the top of the support column 6, and a plurality of exhaust holes are evenly provided on the outer surface of the top of the exhaust pipe 4; during operation, when the absorption tower defogger is used, the exhaust gas enters the exhaust pipe 4 through the air outlet after being subjected to absorption and defog treatment, and is then discharged to the external environment through the pipe mouth and the exhaust holes, and the function of the rain shield 5 is to prevent rainwater from entering the defogger box 3 through the pipe mouth in rainy and snowy weather.

[0024] One end of the drum 7 passes through the surface of one side of the defogger box 3 and is fixedly installed with a toothed disc 9. A gear box 10 is fixedly installed on the box body of one side of the defogger box 3. The toothed disc 9 is rotatably arranged inside the gear box 10. A rotating gear 12 is arranged below the toothed disc 9. The rotating gear 12 is meshed with the toothed disc 9. A motor 11 is fixedly installed at the lower end of the outer side of the gear box 10, and the rotating shaft of the motor 11 is fixedly connected to the rotating gear 12. During operation, when the absorption tower defogger is used, the motor 11 fixed on the gear box 10 is started, the motor 11 drives the rotating gear 12 to rotate, and the rotating gear 12 drives the drum 7 to rotate through the toothed disc 9.

[0025] A drain pipe 13 is fixedly connected to the outer wall on the other side of the demister box 3, and the drain pipe 13 is communicated with the inside of the drum 7. The lower end of the drain pipe 13 is fixedly connected to the lower end of the absorption tower body 2 and is communicated with the absorption tower body 2. During operation, when the absorption tower demister device is used, the gas is defogged in the drum 7, and the mist condenses into liquid state, and then is discharged into the bottom of the absorption tower body 2 through the drain pipe 13, and the liquid level at the bottom of the absorption tower body 2 is higher than the pipe mouth of the drain pipe 13, so as to prevent the exhaust gas from entering the demister box 3 through the drain pipe 13 without being treated.

[0026] A soft brush 15 is obliquely arranged on one side of the lower part of the drum 7, and both ends of the soft brush 15 are fixedly mounted on the inner walls of the demister box 3 on both sides, and the soft brush 15 is tangent to the drum 7; during operation, when the absorption tower demister device is used, the drum 7 drives the gauze 8 to rotate, and the soft brush 15 cleans the dust particles attached to the rotating gauze 8 to prevent the dust from condensing on the surface of the gauze 8 and clogging the mesh holes, thereby affecting the gas discharge.

[0027] A drain pipe 20 is fixedly connected to one side of the bottom end of the absorption tower body 2, and a control valve 21 is arranged in the drain pipe 20; during operation, when the absorption tower demisting device is used, when the liquid inside the absorption tower body 2 reaches a certain amount, the control valve 21 is opened to discharge the liquid through the drain pipe 20.

[0028] Working principle: the existing defogger usually uses a defogger plate to clean the mist in the absorption tower. The smoke in the mist condenses on the defogger plate during the liquefaction process of the mist, affecting the contact area and adhesion between the water mist and the plate surface, thereby reducing the defogger effect. When using the defogger of the absorption tower, start the water pump 22, extract the absorption liquid in the liquid storage tank 24 through the water suction pipe 23, and then pump it into the spray pipe 16 through the connecting pipe 17 to spray it in the absorption tower body 2, so that the absorption tower body 2 is filled with absorption liquid mist, and the exhaust gas is blown into the absorption tower from the air inlet pipe 25 through the fan. In the collecting tower body 2, the exhaust gas is evenly distributed through the air intake grille plate 19 and the ball ring 18, reacts with the absorption liquid, and then the gas enters the demisting box 3 through the atomizing pipe, and enters the drum 7 through the gauze 8. The starting motor 11 drives the rotating gear 12 to rotate, and the rotating gear 12 drives the drum 7 to rotate through the toothed disc 9. The mist collides with each other inside the drum 7 and condenses into liquid. At the same time, the soft brush 15 cleans the dust particles attached to the surface of the rotating gauze 8. After the mist in the gas condenses, the clean gas passes through the gauze 8 and the exhaust pipe 4 to the outside.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An absorption tower demisting device, characterized in that: The invention comprises a base (1); an absorption tower body (2) is fixedly mounted on the base (1); a demister box (3) is fixedly mounted on the top of the absorption tower body (2); a roller (7) is arranged inside the demister box (3); both ends of the roller (7) are rotatably mounted inside the demister box (3); a plurality of air inlet holes are evenly arranged on the outer surface of the roller (7); a gauze net (8) is fixedly mounted on the outer surface of the roller (7); baffles (14) are obliquely arranged on both sides of the roller (7); a spray pipe (16) is arranged at the top of the absorption tower body (2); an air inlet grille plate (19) is arranged below the spray pipe (16) and is fixedly mounted inside the absorption tower body (2); A ball ring (18) is fixedly mounted on the upper part of the air intake grille plate (19); an air intake port is opened on one side of the lower end of the absorption tower body (2); an air intake pipe (25) is fixedly connected to the air intake port; a liquid storage tank (24) is arranged on one side of the absorption tower body (2); a water pump (22) is arranged on one side of the liquid storage tank (24); a water suction pipe (23) is fixedly connected to one side of the lower end of the liquid storage tank (24); the other end of the water suction pipe (23) is fixedly connected to the water pump (22); a connecting pipe (17) is fixedly connected to the water outlet end of the water pump (22); the upper end of the connecting pipe (17) is fixedly connected to one side of the upper end of the absorption tower body (2) and extends to the inside to be fixedly connected to the spray pipe (16).

2. The demisting device for an absorption tower according to claim 1, characterized in that: The demister box (3) has an air outlet at the top, an exhaust pipe (4) is fixedly connected to the air outlet, support columns (6) are fixedly installed on four sides of the upper part of the top cross section of the exhaust pipe (4), a rainproof plate (5) is fixedly installed on the top of the support column (6), and a plurality of exhaust holes are evenly arranged on the outer surface of the top of the exhaust pipe (4).

3. The demisting device for an absorption tower according to claim 1, characterized in that: One end of the roller (7) passes through the surface of one side of the defogger box (3) and is fixedly mounted with a toothed disc (9); a gear box (10) is fixedly mounted on a box body of one side of the defogger box (3); the toothed disc (9) is rotatably arranged inside the gear box (10); a rotating gear (12) is arranged below the toothed disc (9); the rotating gear (12) is meshed with the toothed disc (9); a motor (11) is fixedly mounted on the lower end of the outer side of the gear box (10); a rotating shaft of the motor (11) is fixedly connected to the rotating gear (12).

4. The demisting device for an absorption tower according to claim 1, characterized in that: A drain pipe (13) is fixedly connected to the outer wall of the other side of the demister box (3), the drain pipe (13) is communicated with the interior of the drum (7), and the lower end of the drain pipe (13) is fixedly connected to the lower end of the absorption tower body (2) and is communicated with the interior of the absorption tower body (2).

5. The demisting device for an absorption tower according to claim 1, characterized in that: A soft brush (15) is obliquely arranged on one side of the lower part of the roller (7), and both ends of the soft brush (15) are fixedly mounted on the inner walls of both sides of the demisting box (3), and the soft brush (15) is tangent to the roller (7).

6. The demisting device for an absorption tower according to claim 1, characterized in that: A drainage pipe (20) is fixedly connected to one side of the bottom end of the absorption tower body (2), and a control valve (21) is arranged in the drainage pipe (20).

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