An efficient ionic liquid desulfurization equipment for waste gas treatment

Abstract

The utility model relates to the field of desulfurization technology, and discloses an ionic liquid desulfurization device for high-efficiency waste gas treatment, including a bottom plate, a desulfurization tower is fixedly connected to the upper right side of the bottom plate, an air inlet is fixedly connected to the lower left side of the desulfurization tower, a first filter plate and a second filter plate are equidistantly fixedly connected to the upper inner side of the desulfurization tower, a plurality of mounting blocks are equidistantly fixedly connected to the upper parts of the first filter plate and the second filter plate, an air outlet is fixedly connected to the upper part of the desulfurization tower, and a purification mechanism is arranged on the right front side of the air outlet. In the utility model, by using structures such as a high-temperature cylinder and a gas-liquid separator, the waste gas is first sprayed with ionic liquid through the filter plate, so that the ionic liquid adsorbs sulfur dioxide, and the sprayed ionic liquid is processed by the high-temperature cylinder and the gas-liquid separator to separate sulfur dioxide and collect it in a gas collecting tank, thereby reducing resource waste and raw material consumption.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization, in particular to an ion liquid desulfurization device for high-efficiency waste gas treatment. Background Art

[0002] Sulfur dioxide is a common compound with the chemical formula SO2. It is usually a colorless gas with a strong pungent odor and is a byproduct of many combustion processes, such as the burning of coal, oil, etc. The presence of sulfur dioxide in the atmosphere can lead to the formation of acid rain, which has negative effects on the environment and human health. However, sulfur dioxide is also an important intermediate in many industrial processes and is used to prepare chemicals such as sulfuric acid, so its control and utilization are of great significance;

[0003] Desulfurization equipment is a device used for flue gas desulfurization. Common main equipment includes wet desulfurization tower and dry desulfurization equipment. The wet desulfurization tower is mainly composed of a feeding system, a reactor, an oxidizing gas spray system, a gypsum output system, etc. Its working principle is to convert sulfur dioxide into sulfate ions by contacting and reacting the sulfur-containing flue gas with the spray liquid, and then combining with hydrogen ions to form sulfuric acid to achieve the purpose of desulfurization. Dry desulfurization equipment uses adsorbents to adsorb sulfur dioxide in the flue gas, and then regenerates or treats it to achieve the effect of desulfurization;

[0004] Some ionic liquid desulfurization equipment has some problems in absorbing sulfur dioxide. First, the ionic liquid that absorbs sulfur dioxide is discarded without being treated, resulting in a waste of resources and increased raw material consumption, thereby increasing operating costs. Secondly, the spray system fails to completely absorb the sulfur dioxide in the exhaust gas, resulting in some pollutants still being discharged into the atmosphere, which in turn causes environmental pollution. Therefore, an efficient ionic liquid desulfurization equipment for waste gas treatment is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an ionic liquid desulfurization device for high-efficiency waste gas treatment, aiming to improve the problems of resource waste and environmental pollution existing in some ionic liquid desulfurization devices in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an ionic liquid desulfurization equipment for efficient waste gas treatment, comprising a base plate, a desulfurization tower is fixedly connected to the upper right side of the base plate, an air inlet is fixedly connected to the lower left side of the desulfurization tower, a first filter plate and a second filter plate are equidistantly fixedly connected to the inner upper side of the desulfurization tower, a plurality of mounting blocks are equidistantly fixedly connected to the upper parts of the first filter plate and the second filter plate, an air outlet is fixedly connected to the upper part of the desulfurization tower, a purification mechanism is arranged on the right side of the front of the air outlet, a fixed block is fixedly connected to the upper part of the fixed block, a first water pump is fixedly connected to the upper part of the fixed block, an input end of the first water pump is connected to the lower right side of the desulfurization tower through a liquid extraction pipe, an output end of the first water pump is fixedly connected to the lower left side of the high-temperature cylinder, a gas-liquid separator is fixedly connected to the right side of the base plate, and the input end of the gas-liquid separator is fixedly connected to At the lower rear side of the high-temperature cylinder, the upper rear side of the bottom plate is fixedly connected with a fixing frame, the upper part of the fixing frame is fixedly connected with a cooling cylinder, the lower right side of the cooling cylinder is fixedly connected with a water inlet, the upper left side of the cooling cylinder is fixedly connected with a water outlet, the interior of the cooling cylinder is fixedly connected with a serpentine pipe, the liquid output end of the gas-liquid separator is fixedly connected with one end of the serpentine pipe through the water outlet pipe, the other end of the serpentine pipe is fixedly connected with a first liquid delivery pipe, the middle side of the rear of the desulfurization tower is fixedly connected with a second water pump, the input end of the second water pump is fixedly connected with the first liquid delivery pipe, the output end of the second water pump is fixedly connected with the second liquid delivery pipe, the middle part and the upper end of the second liquid delivery pipe are respectively fixedly connected with a first annular pipe and a second annular pipe, the inner sides of the first annular pipe and the second annular pipe are fixedly connected with a plurality of water spray pipes and penetrate the desulfurization tower, and the lower parts of the water spray pipes are fixedly connected with a plurality of nozzles at equal distances;

[0007] As a further description of the above technical solution: the purification mechanism includes a mounting plate and a square box, the mounting plate is provided on the front right side of the air outlet, the rear part of the mounting plate is respectively fixedly connected with a limestone gypsum board, an activated carbon board and a biological absorption board, the square box is fixedly connected to the front right side of the air outlet, one end of a spring is fixedly connected to the right side of the interior of the square box, the other end of the spring is fixedly connected to a moving block, the moving block is fixedly connected to one side of the middle part of the fork rod, the right end of the fork rod is fixedly connected with a pull ring, a round hole is opened on one side of the right part of the mounting plate, and the left end of the fork rod is engaged with the round hole;

[0008] As a further description of the above technical solution: the moving block slides inside the square box;

[0009] As a further description of the above technical solution: a fan is provided on one side of the rear portion of the air outlet;

[0010] As a further description of the above technical solution: the gas output end of the gas-liquid separator is fixedly connected to the gas collecting port of the gas collecting tank through a gas collecting pipe;

[0011] As a further description of the above technical solution: a plurality of the nozzles are respectively close to the first filter plate and the second filter plate;

[0012] As a further description of the above technical solution: a plurality of air holes are evenly spaced on the upper parts of the first filter plate and the second filter plate;

[0013] As a further description of the above technical solution: a first annular pipe and a second annular pipe are equidistantly fixedly connected to the upper outer side of the desulfurization tower.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, by utilizing the structural coordination of the high-temperature cylinder and the gas-liquid separator, we transport the sprayed ionic liquid into the high-temperature cylinder through the first water pump, and in the high-temperature cylinder, precipitate sulfur dioxide in the ionic liquid. Then, the sulfur dioxide is separated from the ionic liquid through the gas-liquid separator, and the sulfur dioxide is collected in a gas collecting tank. Subsequently, the high-temperature ionic liquid is transported to the cooling cylinder, and after the cooling process in the serpentine tube, it reaches a suitable temperature again, thereby reducing resource waste and raw material consumption.

[0016] 2. In the utility model, the interaction between the second water pump and the purification mechanism is utilized, and the exhaust gas first enters the first and second filter plates with air holes through the air inlet. Through the second water pump, we spray the ionic liquid that has been cooled through the spray pipe to cover the exhaust gas. After spraying the exhaust gas twice, the ionic liquid absorbs the sulfur dioxide in the exhaust gas. Then, through the fan, the flow containing a small amount of exhaust gas is sent to the limestone gypsum board, the activated carbon board and the biological absorption board for the second filtration, and then discharged into the atmosphere, which effectively purifies the exhaust gas, makes it meet the environmental protection standards, and reduces the pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the overall structure diagram of an efficient ionic liquid desulfurization device for waste gas treatment proposed by the utility model;

[0018] Figure 2 This is a rear view of an ionic liquid desulfurization device for high-efficiency waste gas treatment proposed by the utility model;

[0019] Figure 3 This is a left sectional view of an ionic liquid desulfurization device for high-efficiency waste gas treatment proposed by the utility model;

[0020] Figure 4 This is a rear cross-sectional view of an ionic liquid desulfurization device for high-efficiency waste gas treatment proposed by the utility model;

[0021] Figure 5 for Figure 1 A detailed enlarged view of the purification mechanism in the overall structure diagram.

[0022] Legend:

[0023] 1. Bottom plate; 2. Desulfurization tower; 3. Air outlet; 4. Fan; 5. Purification mechanism; 6. Air inlet; 7. Fixed block; 8. First water pump; 9. Liquid extraction pipe; 10. High temperature cylinder; 11. Gas collecting tank; 12. Gas collecting pipe; 13. Spring; 14. Cooling cylinder; 15. First liquid delivery pipe; 16. Second water pump; 17. First annular pipe; 18. Gas-liquid separator; 19. Water outlet pipe; 20. Water outlet; 21. Water inlet ; 22. Second annular tube; 23. First filter plate; 24. Second filter plate; 25. Water spray pipe; 26. Nozzle; 27. Mounting block; 28. Fixing frame; 29. ​​Serpentine tube; 30. Limestone gypsum board; 31. Activated carbon board; 32. Bioabsorption board; 33. Mounting plate; 34. Round hole; 35. Pull ring; 36. Fork rod; 37. Square box; 38. Moving block; 39. Second liquid delivery pipe; 40. Air vent. DETAILED DESCRIPTION

[0024] 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.

[0025] Reference Figure 1-Figure 5, the utility model provides an embodiment of an ionic liquid desulfurization device for high-efficiency waste gas treatment: an ionic liquid desulfurization device for high-efficiency waste gas treatment, comprising a bottom plate 1, a desulfurization tower 2 is fixedly connected to the right side of the upper part of the bottom plate 1, an air inlet 6 is fixedly connected to the lower left side of the desulfurization tower 2, a first filter plate 23 and a second filter plate 24 are fixedly connected to the upper side of the inner part of the desulfurization tower 2 at equal distances, a plurality of mounting blocks 27 are fixedly connected to the upper part of the first filter plate 23 and the second filter plate 24 at equal distances, an air outlet 3 is fixedly connected to the upper part of the desulfurization tower 2, a purification mechanism 5 is arranged on the right side of the front part of the air outlet 3, a fixed block 7 is fixedly connected to the middle side of the upper part of the bottom plate 1, and a first water pump is fixedly connected to the upper part of the fixed block 7 8, the input end of the first water pump 8 is connected to the lower right side of the desulfurization tower 2 through the liquid extraction pipe 9, the output end of the first water pump 8 is fixedly connected to the lower left side of the high-temperature cylinder 10, the right side of the bottom plate 1 is fixedly connected to the gas-liquid separator 18, the input end of the gas-liquid separator 18 is fixedly connected to the lower rear side of the high-temperature cylinder 10, the upper rear side of the bottom plate 1 is fixedly connected to the fixing frame 28, the upper part of the fixing frame 28 is fixedly connected to the cooling cylinder 14, the lower right side of the cooling cylinder 14 is fixedly connected to the water inlet 21, the upper left side of the cooling cylinder 14 is fixedly connected to the water outlet 20, the interior of the cooling cylinder 14 is fixedly connected to the serpentine pipe 29, the liquid output end of the gas-liquid separator 18 is fixedly connected to the serpentine pipe 19 through the outlet pipe 19 One end of the tube 29 and the other end of the serpentine tube 29 are fixedly connected to the first liquid delivery pipe 15, the second water pump 16 is fixedly connected to the middle side of the rear part of the desulfurization tower 2, the input end of the second water pump 16 is fixedly connected to the first liquid delivery pipe 15, and the output end of the second water pump 16 is fixedly connected to the second liquid delivery pipe 39, the middle and upper ends of the second liquid delivery pipe 39 are respectively fixedly connected to the first annular pipe 17 and the second annular pipe 22, the inner sides of the first annular pipe 17 and the second annular pipe 22 are fixedly connected to a plurality of water spray pipes 25 and penetrate the desulfurization tower 2, and the lower parts of the water spray pipes 25 are evenly fixedly connected to a plurality of nozzles 26, the purification mechanism 5 includes a mounting plate 33, a square box 37, and a front right side of the air outlet 3 is provided There is a mounting plate 33, and the rear part of the mounting plate 33 is fixedly connected with a limestone gypsum board 30, an activated carbon board 31 and a biological absorption board 32 respectively. A square box 37 is fixedly connected to the front right side of the air outlet 3, and one end of a spring 13 is fixedly connected to the inner right side of the square box 37, and the other end of the spring 13 is fixedly connected to a moving block 38. The moving block 38 is fixedly connected to one side of the middle part of a fork rod 36, and a pull ring 35 is fixedly connected to the right end of the fork rod 36. A circular hole 34 is opened on one side of the right part of the mounting plate 33, and the left end of the fork rod 36 is engaged with the circular hole 34. A fan 4 is arranged on one side of the rear part of the air outlet 3, and the gas output end of the gas-liquid separator 18 is fixedly connected to the gas collecting port of the gas collecting tank 11 through the gas collecting pipe 12.

[0026] A desulfurization tower 2 is arranged on the bottom plate 1, and the exhaust gas enters through the air inlet 6 of the desulfurization tower 2, flows to the first filter plate 23 and the second filter plate 24 inside the desulfurization tower 2, and passes through the second water pump 16 at the rear of the desulfurization tower 2. The cooled ion liquid passes through the first liquid delivery pipe 15 and the second liquid delivery pipe 39, and is delivered to the water spray pipe 25 of the first annular pipe 17 and the second annular pipe 22 through the second liquid delivery pipe 39. The exhaust gas is sprayed through a plurality of nozzles 26 at the lower part of the water spray pipe 25. After spraying the exhaust gas twice, the ionic liquid absorbs the sulfur dioxide in the exhaust gas. A purification mechanism 5 is arranged on the right side of the front of the air outlet 3. The purification mechanism 5 includes a mounting plate 33, a square box 37, a limestone gypsum board 30, an activated carbon board 31 and a biological absorption board 32. The purification mechanism 5 can be replaced at any time through the fork rod 36, and then the flow containing a small amount of exhaust gas is sent to the limestone gypsum board 30, the activated carbon board 31 and the biological absorption board 32 through the fan 4 for a second filtration, and then discharged to the atmosphere through the air outlet 3. A first water pump 8 is arranged on the bottom plate 1. The first water pump 8 transports the ionic liquid that has absorbed sulfur dioxide to the high-temperature cylinder 10 through the liquid suction pipe 9, and precipitates sulfur dioxide in the ionic liquid in the high-temperature cylinder 10. Then, the sulfur dioxide is separated from the ionic liquid through the gas-liquid separator 18 on the bottom plate 1, and the sulfur dioxide is collected in the gas collecting tank 11. The high-temperature ionic liquid is transported to the cooling cylinder 14, and after the cooling process in the serpentine tube 29, it reaches a suitable temperature again, and is recycled to reduce the waste of resources and the consumption of raw materials.

[0027] Working principle: a desulfurization tower 2 is arranged on the bottom plate 1, and the exhaust gas enters through the air inlet 6 of the desulfurization tower 2, flows to the first filter plate 23 and the second filter plate 24 inside the desulfurization tower 2, and passes through the second water pump 16 at the rear of the desulfurization tower 2, and the cooled ion liquid is sent to the first annular pipe 17 and the second annular pipe 22 through the second liquid delivery pipe 39. The exhaust gas is sprayed through a plurality of nozzles 26 at the lower part of the water spray pipe 25. After spraying the exhaust gas twice, the ion liquid absorbs the sulfur dioxide in the exhaust gas. A purification mechanism 5 is arranged on the right side of the front of the air outlet 3. The purification mechanism 5 includes a mounting plate 33, a square box 37, a limestone gypsum board 30, an activated carbon board 31 and a biological absorption board 32, etc. The components cooperate with each other, and the fork rod 3 6 The purification mechanism 5 can be replaced at any time, and then the flow containing a small amount of exhaust gas is sent to the limestone gypsum board 30, the activated carbon board 31 and the biological absorption board 32 through the fan 4 for a second filtration, and then discharged to the atmosphere through the outlet 3. A first water pump 8 is arranged on the bottom plate 1. The first water pump 8 transports the ionic liquid that has absorbed sulfur dioxide to the high-temperature cylinder 10 through the liquid extraction pipe 9, and precipitates sulfur dioxide in the ionic liquid in the high-temperature cylinder 10. Then, the sulfur dioxide is separated from the ionic liquid through the gas-liquid separator 18 on the bottom plate 1, and the sulfur dioxide is collected in the gas collecting tank 11. The high-temperature ionic liquid is transported to the cooling cylinder 14, and after the cooling process in the serpentine tube 29, it reaches a suitable temperature again, and is recycled to reduce the waste of resources and the consumption of raw materials.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An ionic liquid desulfurization device for high-efficiency waste gas treatment, comprising a bottom plate (1), characterized in that: The upper right side of the bottom plate (1) is fixedly connected to a desulfurization tower (2), the lower left side of the desulfurization tower (2) is fixedly connected to an air inlet (6), the upper inner side of the desulfurization tower (2) is equidistantly fixedly connected to a first filter plate (23) and a second filter plate (24), the upper parts of the first filter plate (23) and the second filter plate (24) are equidistantly fixedly connected to a plurality of mounting blocks (27), the upper part of the desulfurization tower (2) is fixedly connected to an air outlet (3), a purification mechanism (5) is arranged on the right side of the front part of the air outlet (3), and the upper part of the bottom plate (1) is fixedly connected to a first filter plate (23) and a second filter plate (24). A fixed block (7) is fixedly connected to the middle side, a first water pump (8) is fixedly connected to the upper part of the fixed block (7), an input end of the first water pump (8) is connected to the lower right side of the desulfurization tower (2) through a liquid extraction pipe (9), an output end of the first water pump (8) is fixedly connected to the lower left side of the high-temperature cylinder (10), a gas-liquid separator (18) is fixedly connected to the right side of the bottom plate (1), an input end of the gas-liquid separator (18) is fixedly connected to the lower rear side of the high-temperature cylinder (10), a fixed frame (28) is fixedly connected to the upper rear side of the bottom plate (1), The upper part of the fixed frame (28) is fixedly connected to a cooling cylinder (14), the lower right side of the cooling cylinder (14) is fixedly connected to a water inlet (21), the upper left side of the cooling cylinder (14) is fixedly connected to a water outlet (20), the interior of the cooling cylinder (14) is fixedly connected to a serpentine pipe (29), the liquid output end of the gas-liquid separator (18) is fixedly connected to one end of the serpentine pipe (29) through the water outlet pipe (19), the other end of the serpentine pipe (29) is fixedly connected to a first liquid delivery pipe (15), and the middle side of the rear part of the desulfurization tower (2) is fixedly connected to a first liquid delivery pipe (15). Two water pumps (16), the input end of the second water pump (16) is fixedly connected to the first liquid delivery pipe (15), the output end of the second water pump (16) is fixedly connected to the second liquid delivery pipe (39), the middle part and the upper end of the second liquid delivery pipe (39) are respectively fixedly connected to the first annular pipe (17) and the second annular pipe (22), the inner sides of the first annular pipe (17) and the second annular pipe (22) are fixedly connected to a plurality of water spray pipes (25) and penetrate the desulfurization tower (2), and the lower parts of the water spray pipes (25) are fixedly connected to a plurality of nozzles (26) at equal intervals.

2. The high-efficiency ionic liquid desulfurization equipment for waste gas treatment according to claim 1 is characterized in that: The purification mechanism (5) comprises a mounting plate (33) and a square box (37). The mounting plate (33) is arranged on the front right side of the air outlet (3). The rear part of the mounting plate (33) is respectively fixedly connected with a limestone gypsum board (30), an activated carbon board (31) and a biological absorption board (32). The square box (37) is fixedly connected to the front right side of the air outlet (3). One end of a spring (13) is fixedly connected to the right side of the interior of the square box (37). The other end of the spring (13) is fixedly connected to a moving block (38). The moving block (38) is fixedly connected to one side of the middle part of a fork rod (36). The right end of the fork rod (36) is fixedly connected with a pull ring (35). A round hole (34) is opened on one side of the right part of the mounting plate (33). The left end of the fork rod (36) is engaged with the round hole (34).

3. The high-efficiency ionic liquid desulfurization equipment for waste gas treatment according to claim 2 is characterized in that: The moving block (38) slides inside the square box (37).

4. The high-efficiency ionic liquid desulfurization equipment for waste gas treatment according to claim 1 is characterized in that: A fan (4) is provided on one side of the rear portion of the air outlet (3).

5. The high-efficiency ionic liquid desulfurization equipment for waste gas treatment according to claim 1 is characterized in that: The gas output end of the gas-liquid separator (18) is fixedly connected to the gas collecting port of the gas collecting tank (11) via a gas collecting pipe (12).

6. The high-efficiency ionic liquid desulfurization equipment for waste gas treatment according to claim 1 is characterized in that: A plurality of the nozzles (26) are respectively close to the first filter plate (23) and the second filter plate (24).

7. The high-efficiency ionic liquid desulfurization equipment for waste gas treatment according to claim 1 is characterized in that: A plurality of air holes (40) are equidistantly formed on the upper parts of the first filter plate (23) and the second filter plate (24).

8. The high-efficiency ionic liquid desulfurization equipment for waste gas treatment according to claim 1 is characterized in that: A first annular pipe (17) and a second annular pipe (22) are equidistantly fixedly connected to the upper outer side of the desulfurization tower (2).

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