Wet flue gas desulfurization device

Abstract

The utility model provides a wet flue gas desulfurization device, which relates to the technical field of flue gas purification, and comprises a desulfurization tower, a first motor is arranged on the left surface of the desulfurization tower close to the upper part, the output end of the first motor penetrates through the left surface of the desulfurization tower and extends to the inner side, and the output end of the first motor is fixedly connected with a flushing pipeline; a plurality of groups of cleaning nozzles are arranged on the outer surface of the flushing pipeline, the right surface of the flushing pipeline is rotationally communicated with a circulating pipeline, and a slurry inlet is fixedly communicated with the position, close to the middle, of the left surface of the desulfurization tower. According to the utility model, the device can rotate along with the flushing pipeline through the cleaning nozzle, so that all-directional and multi-angle spraying coverage is realized, each part in the desulfurization tower can be uniformly and fully sprayed and cleaned, the problem of insufficient cleaning caused by spraying dead angles is effectively avoided, and the overall desulfurization effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas purification, in particular to a wet flue gas desulfurization device. Background Art

[0002] Industrial waste gas refers to the general term of various pollutant-containing gases discharged into the air during fuel combustion and production processes in industrial plants. These waste gases include carbon dioxide, carbon disulfide, soot, and production dust. When discharged into the atmosphere, they will pollute the air. These substances enter the human body through the respiratory tract in different ways. Some directly cause harm, and some have an accumulation effect, which will more seriously endanger human health.

[0003] In the prior art, as disclosed in Chinese Patent Publication No. CN219848951U, a wet flue gas desulfurization device is disclosed. The wet flue gas desulfurization device includes a desulfurization tower body. A flue gas outlet is arranged at the top of the desulfurization tower body. A slurry inlet is arranged on one side of the desulfurization tower body. An engine is arranged on one side of the desulfurization tower body. A flue gas inlet is arranged on one side of the desulfurization tower body. A demister A is arranged inside the desulfurization tower body. A demister B is arranged inside the desulfurization tower body. A liquid delivery pipeline is arranged inside the desulfurization tower body. A gypsum extraction pipe is arranged on the other side of the desulfurization tower body. A circulation pipeline is arranged on the other side of the desulfurization tower body. A circulation pump is arranged on the arc surface of the circulation pipeline. A connecting piece is arranged at the bottom of the liquid delivery pipeline. A rotating rod is rotatably connected inside the connecting piece. A bevel gear B is sleeved on the arc surface of the rotating rod. A spray rod is arranged on the arc surface of the rotating rod. A stirring rod is hinged on the arc surface of the rotating rod. The output end of the engine is fixedly connected with a rotating shaft. A bevel gear A is sleeved at one end of the rotating shaft.

[0004] Although in the above patent, seven spray rods are evenly distributed in a circular array on the arc surface of the rotating rod, and there are three such sets in total. A plurality of spray heads are arranged at the bottom of each spray rod, so that the spraying is more comprehensive and the desulfurization effect is better. However, since both the spray rod and the spray head are fixed, there will be some dead corners that the fixed spray heads cannot reach, resulting in the normal operation of the desulfurization device being affected due to local scale not being removed, and ultimately having a certain impact on the overall desulfurization effect. Therefore, in view of the above problems, we propose a new type of wet flue gas desulfurization device. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problem in the prior art that since both the spray rod and the spray head are fixed, there will be some dead corners that the fixed spray heads cannot reach, resulting in the normal operation of the desulfurization device being affected due to local scale not being removed, and ultimately having a certain impact on the overall desulfurization effect, and to propose a wet flue gas desulfurization device.

[0006] To achieve the above object, the utility model adopts the following technical scheme: A wet flue gas desulfurization device, including a desulfurization tower, a first motor is installed at a position near the upper part of the left surface of the desulfurization tower, the output end of the first motor penetrates through the left surface of the desulfurization tower and extends to the inside, the output end of the first motor is fixedly connected with a flushing pipeline, multiple cleaning nozzles are arranged on the outer surface of the flushing pipeline, a circulating pipeline is rotationally communicated with the right surface of the flushing pipeline, a slurry inlet is fixedly communicated with the left surface of the desulfurization tower near the middle position, a spraying pipeline is fixedly communicated with the bottom of the slurry inlet, a plurality of spraying rods are fixedly communicated with the bottom of the spraying pipeline, a plurality of spraying heads are arranged at the bottom of the plurality of spraying rods, and the right ends of the plurality of spraying rods are fixedly communicated with the circulating pipeline.

[0007] Preferably, a smoke exhaust pipe is fixedly communicated with the top of the desulfurization tower, an inlet pipe is fixedly communicated with the left surface of the desulfurization tower near the lower position, and a demister is arranged at a position near the top inside the desulfurization tower.

[0008] Preferably, a second motor is installed at a position near the bottom of the left surface of the desulfurization tower, the output end of the second motor penetrates through the left surface of the desulfurization tower and extends to the inside, and the output end of the second motor is fixedly connected with a stirring rod.

[0009] Preferably, multiple groups of stirring blades are fixedly connected to the outer surface of the stirring rod, and a slurry tank is arranged at the inner bottom of the desulfurization tower.

[0010] Preferably, a gypsum outlet pipe is fixedly communicated with the right surface of the desulfurization tower near the bottom, and a circulating pump is installed at a position near the lower part of the right surface of the desulfurization tower.

[0011] Preferably, the input end of the circulating pump is fixedly communicated with the slurry tank, and the output end of the circulating pump is fixedly communicated with the circulating pipeline.

[0012] Preferably, the cleaning nozzles are sequentially arranged on the outer surface of the bottom of the flushing pipeline, and the plurality of spraying rods are arranged in a staggered manner up and down.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are as follows.

[0014] 1. In the utility model, the device can rotate with the flushing pipeline through the cleaning nozzles, so as to realize all-round and multi-angle spraying coverage, thereby ensuring that every part inside the desulfurization tower can be evenly and fully sprayed and cleaned, effectively avoiding the problem of insufficient cleaning caused by spraying dead angles, and thus improving the overall desulfurization effect.

[0015] 2. In the present utility model, the cleaning nozzle is arranged at the bottom of the flushing pipeline. On the one hand, the cost will not be too high, and secondly, the spray cleaning effect will not be reduced. The spray bars are arranged in a staggered manner up and down, which can effectively enhance the spray effect without increasing the cost, making the uniformity of the spray range higher, thereby improving the desulfurization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view of a wet flue gas desulfurization device proposed by the present utility model;

[0017] Figure 2 is a cross-sectional view of a wet flue gas desulfurization device proposed by the present utility model;

[0018] Figure 3 is a developed view of a wet flue gas desulfurization device proposed by the present utility model;

[0019] Figure 4 is a partial structural schematic diagram of a wet flue gas desulfurization device proposed by the present utility model.

[0020] Legend: 1. Desulfurization tower; 11. Smoke exhaust pipe; 12. Slurry inlet; 13. Flue gas inlet pipe; 14. Gypsum extraction pipe; 2. First motor; 21. Flushing pipeline; 22. Cleaning nozzle; 23. Demister; 3. Spray pipeline; 31. Spray bar; 32. Spray head; 4. Circulation pipeline; 41. Circulation pump; 5. Slurry tank; 51. Second motor; 52. Stirring rod; 53. Stirring blade. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the following further describes the present utility model with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0022] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0023] Embodiment 1: As Figures 1 - 4As shown in the figure, the utility model provides a wet flue gas desulfurization device, which includes a desulfurization tower 1. A first motor 2 is installed at a position near the upper part of the left surface of the desulfurization tower 1. The output end of the first motor 2 penetrates through the left surface of the desulfurization tower 1 and extends to the inside. The output end of the first motor 2 is fixedly connected with a flushing pipeline 21. Multiple cleaning nozzles 22 are arranged on the outer surface of the flushing pipeline 21. The right surface of the flushing pipeline 21 is rotationally communicated with a circulating pipeline 4. A slurry inlet 12 is fixedly communicated with the left surface of the desulfurization tower 1 near the middle position. A spraying pipeline 3 is fixedly communicated with the bottom of the slurry inlet 12. A plurality of spraying rods 31 are fixedly communicated with the bottom of the spraying pipeline 3. A plurality of spray heads 32 are arranged at the bottom of the plurality of spraying rods 31. The right ends of the plurality of spraying rods 31 are fixedly communicated with the circulating pipeline 4. A smoke exhaust pipe 11 is fixedly communicated with the top of the desulfurization tower 1. An inlet smoke pipe 13 is fixedly communicated with the left surface of the desulfurization tower 1 near the lower part. A demister 23 is arranged at a position near the top inside the desulfurization tower 1. A second motor 51 is installed at a position near the bottom of the left surface of the desulfurization tower 1. The output end of the second motor 51 penetrates through the left surface of the desulfurization tower 1 and extends to the inside. The output end of the second motor 51 is fixedly connected with a stirring rod 52. Multiple stirring blades 53 are fixedly connected to the outer surface of the stirring rod 52. A slurry tank 5 is arranged at the inner bottom of the desulfurization tower 1. A gypsum outlet pipe 14 is fixedly communicated with the right surface of the desulfurization tower 1 near the bottom. A circulating pump 41 is installed at a position near the lower part of the right surface of the desulfurization tower 1. The input end of the circulating pump 41 is fixedly communicated with the slurry tank 5. The output end of the circulating pump 41 is fixedly communicated with the circulating pipeline 4.

[0024] The effect achieved by the entire Example 1 is that when using this device, industrial waste gas is discharged into the interior of the desulfurization tower 1 through the smoke inlet pipe 13, and the absorbent slurry is discharged into the spray pipe 3 through the slurry inlet 12, and then respectively discharged into multiple spray rods 31. Finally, it is evenly sprayed out through multiple spray nozzles 32 at the bottom of each spray rod 31. When spraying, it will come into full contact with the industrial waste gas inside the desulfurization tower 1, and SO2 is absorbed by the absorbent slurry. Then, the second motor 51 is started. Under the action of the second motor 51, the stirring rod 52 is driven to rotate. The rotation of the stirring rod 52 will drive multiple groups of stirring blades 53 on its surface, so as to stir the absorbent slurry that has fallen to the bottom again, making the desulfurization effect better. And because multiple spray rods 31 are all in communication with the circulation pipe 4, the unused absorbent slurry and the used absorbent slurry can be continuously circulated and sprayed through the circulation pump 41 on the circulation pipe 4, ensuring the continuous progress of the desulfurization reaction. Finally, the products such as gypsum generated in the slurry tank 5 are discharged through the gypsum outlet pipe 14. When cleaning is required, the first motor 2 is started. Under the action of the first motor 2, the flushing pipe 21 rotates, so as to drive multiple cleaning nozzles 22 on the outer surface of the flushing pipe 21 to evenly spray the cleaning liquid while rotating, so as to effectively clean all parts such as the inner wall of the desulfurization tower 1, the spray layer, and the demister 23 in all directions. No matter where the scale is distributed, it can ensure that the cleaning water jet can cover it, improving the cleaning effect. And because of the good cleaning effect and high efficiency, the rotating cleaning nozzles 22 can reduce the amount of cleaning liquid used and the number of cleaning times. This not only saves water resources but also reduces the cleaning cost. The function of the demister 23 is to remove the water mist in the flue gas to prevent the corrosion and blockage of downstream equipment. The exhaust pipe 11 discharges the clean flue gas treated by the wet flue gas desulfurization device from the desulfurization tower 1. This device can rotate with the flushing pipe 21 through the cleaning nozzles 22, so as to achieve all-round and multi-angle spray coverage, thus ensuring that every part in the desulfurization tower can be evenly and fully sprayed and cleaned, effectively avoiding the problem of insufficient cleaning caused by spray dead angles, and thus improving the overall desulfurization effect.

[0025] Example 2: As Figures 1 - 4 shown, the cleaning nozzles 22 are sequentially arranged on the outer surface of the bottom of the flushing pipe 21, and multiple spray rods 31 are arranged in a staggered manner up and down.

[0026] The effect achieved by the entire Example 2 is that the cleaning nozzles 22 are arranged at the bottom of the flushing pipe 21. On the one hand, the cost will not be too high, and secondly, the spray cleaning effect will not be reduced. And the spray rods 31 are arranged in a staggered manner up and down, which can effectively enhance the spray effect without increasing the cost, making the uniformity of the spray range higher, thus improving the desulfurization effect.

[0027] Working principle: When using this device, industrial waste gas is discharged into the interior of the desulfurization tower 1 through the smoke inlet pipe 13, and the absorbent slurry is discharged into the spray pipe 3 through the slurry inlet 12, and then respectively discharged into multiple spray rods 31. Finally, it is evenly sprayed out through multiple spray nozzles 32 at the bottom of each spray rod 31. When spraying, it will fully contact the industrial waste gas inside the desulfurization tower 1, and SO2 is absorbed by the absorbent slurry. Then, the second motor 51 is started. Under the action of the second motor 51, the stirring rod 52 is driven to rotate. The rotation of the stirring rod 52 will drive multiple groups of stirring blades 53 on its surface, so as to stir the absorbent slurry that has fallen to the bottom again, making the desulfurization effect better. And because multiple spray rods 31 are all in communication with the circulation pipe 4, the unused absorbent slurry and the used absorbent slurry can be continuously circulated and sprayed through the circulation pump 41 on the circulation pipe 4, ensuring the continuous progress of the desulfurization reaction. Finally, products such as gypsum generated in the slurry tank 5 are discharged through the gypsum outlet pipe 14. When cleaning is required, the first motor 2 is started. Under the action of the first motor 2, the flushing pipe 21 rotates, so as to drive multiple cleaning nozzles 22 on the outer surface of the flushing pipe 21 to evenly spray the cleaning liquid while rotating, so as to effectively clean all parts such as the inner wall of the desulfurization tower 1, the spray layer, and the demister 23 in all directions. No matter where the scale is distributed, it can ensure that the cleaning water jet can cover it, improving the cleaning effect. And because of the good cleaning effect and high efficiency, the rotating cleaning nozzles 22 can reduce the amount of cleaning liquid used and the number of cleaning times. This not only saves water resources but also reduces the cleaning cost. This device can realize all-round and multi-angle spray coverage through the fact that the cleaning nozzles 22 can rotate with the flushing pipe 21, so as to ensure that every part in the desulfurization tower can be evenly and fully sprayed and cleaned, effectively avoiding the problem of insufficient cleaning caused by spray dead angles, thereby improving the overall desulfurization effect. And, the cleaning nozzles 22 are arranged at the bottom of the flushing pipe 21. On the one hand, the cost will not be too high, and secondly, the spray cleaning effect will not be reduced. And the spray rods 31 are arranged in a staggered manner up and down, which can effectively enhance the spray effect without increasing the cost, making the uniformity of the spray range higher, thereby improving the desulfurization effect.

[0028] The above is only the preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A wet flue gas desulfurization device, comprising a desulfurization tower (1), characterized in that: A first motor (2) is installed near the top of the left surface of the desulfurization tower (1), the output end of the first motor (2) penetrates the left surface of the desulfurization tower (1) and extends to the inside, the output end of the first motor (2) is fixedly connected to a flushing pipe (21), the outer surface of the flushing pipe (21) is provided with a plurality of cleaning nozzles (22), the right surface of the flushing pipe (21) is rotatably connected to a circulation pipe (4), a slurry inlet (12) is fixedly connected to the middle of the left surface of the desulfurization tower (1), the bottom of the slurry inlet (12) is fixedly connected to a spray pipe (3), the bottom of the spray pipe (3) is fixedly connected to a plurality of spray rods (31), the bottoms of the plurality of spray rods (31) are provided with a plurality of spray heads (32), and the right ends of the plurality of spray rods (31) are fixedly connected to the circulation pipe (4).

2. The wet flue gas desulfurization device according to claim 1, characterized in that: The top of the desulfurization tower (1) is fixedly connected to a smoke exhaust pipe (11), a left surface of the desulfurization tower (1) near the bottom is fixedly connected to a smoke inlet pipe (13), and a demister (23) is provided inside the desulfurization tower (1) near the top.

3. The wet flue gas desulfurization device according to claim 2, characterized in that: A second motor (51) is installed on the left surface of the desulfurization tower (1) near the bottom, and the output end of the second motor (51) passes through the left surface of the desulfurization tower (1) and extends to the inside, and the output end of the second motor (51) is fixedly connected to a stirring rod (52).

4. The wet flue gas desulfurization device according to claim 3, characterized in that: The outer surface of the stirring rod (52) is fixedly connected to a plurality of stirring blades (53), and the inner bottom of the desulfurization tower (1) is provided with a slurry tank (5).

5. The wet flue gas desulfurization device according to claim 4, characterized in that: A gypsum outlet pipe (14) is fixedly connected to a position near the bottom of the right surface of the desulfurization tower (1), and a circulation pump (41) is installed near the bottom of the right surface of the desulfurization tower (1).

6. The wet flue gas desulfurization device according to claim 5, characterized in that: The input end of the circulation pump (41) is fixedly connected to the slurry tank (5), and the output end of the circulation pump (41) is fixedly connected to the circulation pipeline (4).

7. The wet flue gas desulfurization device according to claim 6, characterized in that: The cleaning nozzles (22) are sequentially arranged on the outer surface of the bottom of the flushing pipe (21), and the plurality of spray rods (31) are arranged in an up-and-down staggered manner.

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