Rotary spraying desulfurizer for environmental protection equipment

Abstract

The utility model discloses a rotary jet desulfurizer for environmental protection equipment, which comprises a tower body, an inclined flue gas inlet fixedly communicated with the bottom side of the tower body, a flue gas outlet fixedly communicated with the top of the tower body, a middle shaft rotatably mounted in the tower body, a second water distribution pipe rotatably sleeved at the top end of the middle shaft, a shaft sleeve rotatably sleeved outside the middle shaft, and a second water distribution pipe rotatably sleeved outside the shaft sleeve. The top end of the shaft sleeve is rotationally sleeved with a first water distribution pipe located on the outer side of the second water distribution pipe, and the first water distribution pipe and the second water distribution pipe fixedly communicate with a plurality of atomization nozzles. According to the utility model, the two groups of water distribution pipes respectively rotate forwards and backwards to alternately cover the spraying area, so that the distribution uniformity of the spraying slurry on the whole flue gas flow section is effectively improved, and the sprayed slurry can more comprehensively cover the flue gas flow path due to the rotation action of the water distribution pipes, so that the spraying efficiency is improved. A larger contact area and longer reaction time between the slurry and the rising flue gas are ensured, and the removal effect on sulfur oxides in the flue gas is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of rotary jet desulfurizer technology, and in particular to a rotary jet desulfurizer for use in environmental protection equipment. Background Technology

[0002] Rotary jet desulfurizers, as a key technological equipment designed to reduce sulfur dioxide (SO2) emissions during combustion, play an important role in the field of industrial pollution control.

[0003] However, traditional rotary jet desulfurizers typically arrange the spray layer horizontally and fixedly inside the desulfurization tower. This layout results in the slurry spraying not achieving complete coverage of the flue gas circulation area. Due to insufficient contact between the sprayed slurry and the rising flue gas, especially in areas that are not effectively covered, sulfur oxides in the flue gas cannot be completely removed, thus significantly reducing the overall desulfurization efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a rotary jet desulfurizer for environmental protection equipment in order to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A rotary jet desulfurizer for environmental protection equipment includes a tower body, with an inclined flue gas inlet fixedly connected to the bottom side of the tower body and a flue gas outlet fixedly connected to the top of the tower body. A central shaft is rotatably installed inside the tower body, and a second water distribution pipe is rotatably sleeved at the top of the central shaft. A bushing is rotatably sleeved outside the central shaft, and a first water distribution pipe located outside the second water distribution pipe is rotatably sleeved at the top of the bushing. The central shaft and the bushing rotate in opposite directions. The first and second water distribution pipes are horizontally arranged "J"-shaped pipes with the same diameter. A plurality of atomizing nozzles are fixedly connected to the long sections of the first and second water distribution pipes along their length. The outer diameters of the central shaft and the bushing are both smaller than the diameter of the first water distribution pipe.

[0007] As a further description of the above technical solution:

[0008] A waterproof shell is fixedly connected to the bottom side of the tower body. A central shaft and a bushing pass through the waterproof shell. A first driven bevel gear is fixedly sleeved on the bushing, and a second driven bevel gear is fixedly sleeved on the central shaft. A waterproof motor is fixedly installed inside the waterproof shell. A driving bevel gear is fixedly sleeved on the output shaft of the waterproof motor. The driving bevel gear meshes with the first driven bevel gear and the second driven bevel gear for transmission.

[0009] As a further description of the above technical solution:

[0010] A return pipe is fixedly connected to the bottom side of the tower body, and a circulation pump is installed on the return pipe. The free end of the return pipe extends into the tower body. The short ends of the first water distribution pipe and the second water distribution pipe are connected to the free end of the return pipe through a rotary joint. The rotation axis of the rotary joint is collinear with the rotation axis of the central shaft and the bushing.

[0011] As a further description of the above technical solution:

[0012] A filter plate is fixedly installed at the bottom of the tower body, and the filter plate is located between the flue gas inlet and the connection between the return pipe and the tower body.

[0013] As a further description of the above technical solution:

[0014] A demister is fixedly installed on the top of the tower body, and the position of the demister is higher than the connection between the free end of the return pipe and the tower body.

[0015] As a further description of the above technical solution:

[0016] The central shaft and the second water distribution pipe, the first water distribution pipe and the bushing, the central shaft and the bushing, and the bushing and the waterproof shell are all rotatably connected by sealed bearings.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0018] 1. In this utility model, the two sets of water distribution pipes rotate in opposite directions to alternately cover the spraying area, which effectively improves the uniformity of the sprayed slurry distribution across the entire flue gas flow cross section. Furthermore, due to the rotation of the water distribution pipes, the sprayed slurry can more comprehensively cover the flue gas flow path, ensuring a larger contact area and a longer reaction time between the slurry and the rising flue gas. This not only promotes the occurrence of chemical reactions and enhances the removal effect of sulfur oxides in the flue gas, but also improves the overall desulfurization efficiency.

[0019] 2. In this utility model, after the spray liquid completes the absorption of sulfur oxides in the flue gas, it descends to the bottom of the tower. At the bottom of the tower, the spray liquid is filtered by a filter plate to remove particulate matter and other impurities, so as to prevent these impurities from clogging the water distribution pipe or nozzle and to ensure the spraying effect. Attached Figure Description

[0020] Figure 1 This diagram shows the internal structure of a rotary jet desulfurizer for environmental protection equipment according to an embodiment of the present invention.

[0021] Figure 2 It shows Figure 1 Enlarged view of the center;

[0022] Figure 3A partial cross-sectional schematic diagram of the connection between the central shaft and the two water distribution pipes, and the connection between the bushing and the first water distribution pipe, is shown according to an embodiment of the present invention.

[0023] Figure 4 A three-dimensional structural schematic diagram of a rotary jet desulfurizer for environmental protection equipment provided according to an embodiment of the present utility model is shown.

[0024] Legend:

[0025] 1. Tower body; 2. Flue gas inlet; 3. Flue gas outlet; 4. Waterproof shell; 5. Filter plate; 6. Bushing; 7. Central shaft; 8. Atomizing nozzle; 9. First water distribution pipe; 10. Second water distribution pipe; 11. Rotary joint; 12. Return pipe; 13. Circulation pump; 14. Demister; 15. First driven bevel gear; 16. Driving bevel gear; 17. Second driven bevel gear; 18. Waterproof motor. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-4 This utility model provides a technical solution: a rotary jet desulfurizer for environmental protection equipment, comprising a tower body 1, a flue gas inlet 2 fixedly connected to the bottom side of the tower body 1, a flue gas outlet 3 fixedly connected to the top of the tower body 1, a central shaft 7 rotatably installed inside the tower body 1, a second water distribution pipe 10 rotatably sleeved at the top of the central shaft 7, a bushing 6 rotatably sleeved outside the central shaft 7, and a first water distribution pipe 9 located outside the second water distribution pipe 10 rotatably sleeved at the top of the bushing 6. The first water distribution pipe 9 and the second water distribution pipe 10 are horizontally arranged "J"-shaped pipes with the same diameter. The rotational movements of the first water distribution pipe 9 and the second water distribution pipe 10 do not interfere with each other. Several atomizing nozzles 8 are fixedly connected to the long sections of the water pipe 9 and the second water distribution pipe 10 along their length. The outer diameters of the central shaft 7 and the bushing 6 are both smaller than the diameter of the first water distribution pipe 9 to ensure smooth flow of the spray liquid. A waterproof shell 4 is fixedly connected to the bottom side of the tower body 1. The central shaft 7 and the bushing 6 pass through the waterproof shell 4. A first driven bevel gear 15 is fixedly sleeved on the bushing 6, and a second driven bevel gear 17 is fixedly sleeved on the central shaft 7. A waterproof motor 18 is fixedly installed inside the waterproof shell 4. A driving bevel gear 16 is fixedly sleeved on the output shaft of the waterproof motor 18. The driving bevel gear 16 meshes with the first driven bevel gear 15 and the second driven bevel gear 17 for transmission. Flue gas enters the tower body 1 through the flue gas inlet 2 and drives the driving bevel gear 16 to rotate forward through the waterproof motor 18 (see reference). Figure 2 (Looking to the left), under the action of gear meshing transmission, the first driven bevel gear 15 drives the bushing 6 to rotate clockwise (see reference). Figure 2 (View from above) The bushing 6 drives the first water distribution pipe 9 to rotate forward, while the second driven bevel gear 17 drives the central shaft 17 to rotate in reverse. The central shaft 17 then drives the second water distribution pipe 10 to rotate in reverse. The spray liquid is sprayed out through the atomizing nozzle 8. The two sets of water distribution pipes alternately cover the spray area, which effectively improves the uniformity of the spray slurry distribution across the entire flue gas flow cross section. Furthermore, due to the rotation of the water distribution pipes, the sprayed slurry can more comprehensively cover the flue gas flow path, ensuring a larger contact area and a longer reaction time between the slurry and the rising flue gas. This not only promotes the occurrence of chemical reactions and enhances the removal effect of sulfur oxides in the flue gas, but also improves the overall desulfurization efficiency.

[0028] In this embodiment, a slurry containing an absorbent (such as limestone, lime, or seawater) is typically used as the spray liquid. It is sprayed into the desulfurization tower through a nozzle to fully contact the flue gas containing sulfur dioxide (SO2), thereby achieving a chemical reaction to remove sulfur oxides from the flue gas.

[0029] Specifically, such as Figure 1 As shown, a return pipe 12 is fixedly connected to the bottom side of the tower body 1. A circulation pump 13 is installed on the return pipe 12. The free end of the return pipe 12 extends into the tower body 1. A filter plate 5 is fixedly installed at the bottom of the tower body 1. The filter plate 5 is located between the flue gas inlet 2 and the connection between the return pipe 12 and the tower body 1. The short ends of the first water distribution pipe 9 and the second water distribution pipe 10 are connected to the free end of the return pipe 12 through a rotary joint 11. The rotation axis of the rotary joint 11 is collinear with the rotation axis of the central shaft 7 and the bushing 6. The setting of the rotary joint 11 allows the spray liquid to smoothly enter the rotating first water distribution pipe 9 and the second water distribution pipe 10 without causing the pipe to twist or be damaged due to the rotation of the water distribution pipe. This solves the connection problem between dynamic components and static pipes and ensures the continuity and stability of liquid transmission. After absorbing sulfur oxides in the flue gas, the spray liquid descends to the bottom of tower 1. At the bottom of the tower, the spray liquid is filtered by filter plate 5 to remove particulate matter and other impurities, preventing these impurities from clogging the water distribution pipes or nozzles and ensuring the spraying effect. The filtered spray liquid will accumulate at the bottom of the tower. Subsequently, powered by the circulation pump 13, the purified spray liquid will be drawn out and transported through the return pipe 12, and redistributed to the two sets of water distribution pipes. It will then be evenly dispersed again in the form of spray, making full contact with the rising flue gas and continuing to perform its desulfurization task.

[0030] Specifically, such as Figure 1As shown, a demister 14 is fixedly installed on the top of the tower body 1. It is mainly used to capture and remove tiny droplets (mainly mist droplets formed by desulfurization slurry) carried in the flue gas after desulfurization treatment, to prevent these droplets from being emitted into the atmosphere with the purified flue gas and causing secondary pollution. The position of the demister 14 is higher than the connection between the free end of the return pipe 12 and the tower body 1, to ensure that all tiny droplets that may be carried away by the flue gas can be intercepted by the demister. If the position of the demister is too low, some droplets may directly enter the return pipe, affecting the normal operation of the system or causing unnecessary material loss.

[0031] It should be noted that the central shaft 7 and the second water distribution pipe 10, the first water distribution pipe 9 and the bushing 6, the central shaft 7 and the bushing 6, and the bushing 6 and the waterproof shell 4 are all rotatably connected by sealed bearings. The sealed bearings not only provide the necessary support force, but also effectively prevent the desulfurization slurry from seeping into the mechanical components, thus avoiding failures caused by corrosion or blockage.

[0032] Working principle: In operation, flue gas first enters the tower body 1 through flue gas inlet 2. The waterproof motor 18 drives the active bevel gear 16 to rotate forward. Under the action of gear meshing transmission, the first driven bevel gear 15 drives the bushing 6 to rotate forward, and the bushing 6 drives the first water distribution pipe 9 to rotate forward. At the same time, the second driven bevel gear 17 drives the central shaft 17 to rotate in reverse, and the central shaft 17 drives the second water distribution pipe 10 to rotate in reverse. The spray liquid is sprayed out through the atomizing nozzle 8. The two sets of water distribution pipes alternately cover the spray area, which effectively improves the uniformity of the distribution of the spray slurry on the entire flue gas flow section. Moreover, due to the rotation of the water distribution pipe, the sprayed slurry can more comprehensively cover the flue gas flow path, ensuring a larger contact area and a longer reaction time between the slurry and the rising flue gas. This not only promotes the occurrence of chemical reactions and enhances the removal effect of sulfur oxides in the flue gas, but also improves the overall desulfurization efficiency.

[0033] Secondly, after the spray liquid absorbs sulfur oxides in the flue gas, it descends to the bottom of the tower 1. At the bottom of the tower, the spray liquid is filtered by the filter plate 5 to remove particulate matter and other impurities, so as to prevent these impurities from clogging the water distribution pipe or nozzle and to ensure the spraying effect. The filtered spray liquid will accumulate at the bottom of the tower. Then, with the power provided by the circulating pump 13, the purified spray liquid will be drawn out and transported through the return pipe 12, and redistributed to the two sets of water distribution pipes. It will then be evenly dispersed again in the form of spray to fully contact the rising flue gas and continue to perform its desulfurization task.

[0034] The entire process forms a closed-loop reflux system, allowing the spray liquid to be continuously recycled inside the desulfurization tower until its absorption capacity reaches saturation and needs to be replaced or regenerated.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A rotary jet desulfurizer for environmental protection equipment, comprising a tower body (1), an inclined flue gas inlet (2) fixedly connected to the bottom side of the tower body (1), and a flue gas outlet (3) fixedly connected to the top of the tower body (1), characterized in that, The tower body (1) is rotatably installed with a central shaft (7). The top of the central shaft (7) is rotatably fitted with a second water distribution pipe (10). The central shaft (7) is rotatably fitted with a bushing (6). The top of the bushing (6) is rotatably fitted with a first water distribution pipe (9) located outside the second water distribution pipe (10). The central shaft (7) and the bushing (6) rotate in opposite directions. The first water distribution pipe (9) and the second water distribution pipe (10) are horizontally arranged "J" shaped pipes with the same diameter. The long sections of the first water distribution pipe (9) and the second water distribution pipe (10) are fixedly connected to several atomizing nozzles (8) along their length. The outer diameter of the central shaft (7) and the bushing (6) is smaller than the diameter of the first water distribution pipe (9).

2. The rotary jet desulfurizer for environmental protection equipment according to claim 1, characterized in that, A waterproof shell (4) is fixedly connected to the bottom side of the tower body (1). A central shaft (7) and a bushing (6) pass through the waterproof shell (4). A first driven bevel gear (15) is fixedly sleeved on the bushing (6), and a second driven bevel gear (17) is fixedly sleeved on the central shaft (7). A waterproof motor (18) is fixedly installed inside the waterproof shell (4). A driving bevel gear (16) is fixedly sleeved on the output shaft of the waterproof motor (18). The driving bevel gear (16) meshes with the first driven bevel gear (15) and the second driven bevel gear (17) for transmission.

3. A rotary jet desulfurizer for environmental protection equipment according to claim 2, characterized in that, The bottom side of the tower body (1) is fixedly connected to a return pipe (12), and a circulation pump (13) is installed on the return pipe (12). The free end of the return pipe (12) extends into the tower body (1). The short ends of the first water distribution pipe (9) and the second water distribution pipe (10) are connected to the free end of the return pipe (12) through a rotary joint (11). The rotation axis of the rotary joint (11) is collinear with the rotation axis of the central shaft (7) and the bushing (6).

4. A rotary jet desulfurizer for environmental protection equipment according to claim 3, characterized in that, A filter plate (5) is fixedly installed at the bottom of the tower body (1). The filter plate (5) is located between the flue gas inlet (2) and the connection between the return pipe (12) and the tower body (1).

5. A rotary jet desulfurizer for environmental protection equipment according to claim 4, characterized in that, A demister (14) is fixedly installed on the top of the tower body (1). The position of the demister (14) is higher than the connection between the free end of the return pipe (12) and the tower body (1).

6. A rotary jet desulfurizer for environmental protection equipment according to claim 5, characterized in that, The central shaft (7) and the second water distribution pipe (10), the first water distribution pipe (9) and the bushing (6), the central shaft (7) and the bushing (6), and the bushing (6) and the waterproof shell (4) are all rotatably connected by sealed bearings.

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