Atomization spraying device for flue gas desulfurization

Abstract

The utility model provides an atomizing spray device for flue gas desulfurization, which relates to the technical field of flue gas desulfurization and comprises a tank body, a filter cartridge is fixedly connected to one side of the outer wall of the tank body, a gas inlet pipe is fixedly connected to the side face of the filter cartridge, and a driving motor is fixedly mounted at the top of the filter cartridge. A first water pump and a second water pump are fixedly mounted on the other side of the outer wall of the tank body, a spraying pipe is fixedly mounted in the tank body, a frame is arranged in a filter cartridge, an annular pipe is fixedly mounted at the top of a partition plate, a filter screen in the frame can filter impurities, and a driving motor is started to drive the frame to move up and down; impurities adhering to the surface of the filter screen are scraped off through cooperation with the brush, the first water pump pumps reaction liquid to the spray head to be sprayed out, gas makes contact with water mist to form impurity precipitates, the second water pump pumps washing liquid in the tank body to the top of the partition plate, the gas is discharged from the annular pipe and subjected to a secondary reaction with the washing liquid, and therefore the gas desulfurization effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of flue gas desulfurization technology, and in particular to an atomizing spray device for flue gas desulfurization. Background Technology

[0002] Flue gas desulfurization refers to the removal of sulfur oxides from flue gas or other industrial waste gas. It mainly uses limestone, lime or sodium carbonate slurry as washing liquid to wash the flue gas in a reaction tower, thereby removing sulfur oxides from the flue gas.

[0003] Because the flue gas contains a lot of particulate impurities, these impurities can easily mix with the treatment liquid when they enter the spray box together. Therefore, it is necessary to increase the replacement frequency of the treatment liquid. In addition, because the flue gas flow rate is too fast, the contact time between the flue gas and the treatment liquid is short. As a result, the treated flue gas still contains residual sulfur compounds, which leads to poor desulfurization effect. Utility Model Content

[0004] The purpose of this invention is to solve the problems of the above-mentioned impurities entering the spray box requiring an increased frequency of treatment liquid replacement, and the short contact time between the flue gas and the treatment liquid due to the excessively fast flue gas flow rate, resulting in poor desulfurization effect. Therefore, an atomizing spray device for flue gas desulfurization is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an atomizing spray device for flue gas desulfurization, comprising a tank, an inlet pipe and an outlet pipe fixedly installed on the surface of the tank, a control panel fixedly installed on the surface of the tank, a partition fixedly connected to the inner wall of the tank, a filter cylinder fixedly connected to one side of the outer wall of the tank, an air inlet pipe fixedly connected to the side of the filter cylinder, a drive motor fixedly installed on the top of the filter cylinder, a first water pump and a second water pump fixedly installed on the other side of the outer wall of the tank, a spray pipe fixedly installed inside the tank, a frame provided inside the filter cylinder, and an annular pipe fixedly installed on the top of the partition.

[0006] Preferably, a movable baffle is movably installed at the bottom of the filter cartridge, a storage base is fixedly connected to the top of the inner wall of the filter cartridge, and a brush is fixedly connected to the bottom of the storage base.

[0007] Preferably, the top of the frame is movably installed inside the storage base, the inside of the frame is provided with a filter screen, and the top of the frame is fixedly connected with a toothed rack.

[0008] Preferably, the output shaft of the drive motor is fixedly connected to a transmission gear, and the side of the transmission gear meshes with the side of the rack.

[0009] Preferably, the inlet ends of the first water pump and the second water pump are both connected to the bottom of the tank, the outlet end of the first water pump is fixedly connected to a connecting pipe, the top of the connecting pipe is connected to the inside of the spray pipe, and a spray head is fixedly installed on the outer wall of the spray pipe.

[0010] Preferably, the outlet end of the second water pump is fixedly connected to a second connecting pipe, and the top end of the second connecting pipe is installed inside the tank.

[0011] Preferably, a solenoid valve is fixedly connected to the bottom of the partition, the input end of the solenoid valve is electrically connected to the output end of the control panel, and the air inlet of the annular pipe is installed at the bottom of the partition.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, a frame is installed inside the filter cylinder, which covers the inside of the filter cylinder. The filter screen inside the frame can filter impurities entering the tank. By starting the drive motor and driving the transmission gear to rotate back and forth, the frame can be moved up and down. In cooperation with the brush, the impurities adhering to the surface of the filter screen can be scraped off, making it convenient to clean the filter screen.

[0014] 2. In this utility model, the first water pump draws the reaction liquid inside the tank to the nozzle and sprays it out, so that the gas comes into contact with the water mist to form impurity precipitation. The second water pump draws the washing liquid inside the tank to the top of the baffle. The washing liquid covers the outlet of the annular pipe. The gas rises and is discharged from the annular pipe. It will come into contact with the washing liquid to carry out a secondary reaction, thereby improving the desulfurization effect on the gas. Attached Figure Description

[0015] Figure 1 This utility model provides a three-dimensional structural diagram of the tank body of an atomizing spray device for flue gas desulfurization;

[0016] Figure 2 This utility model provides a schematic diagram of the internal structure of the tank of an atomizing spray device for flue gas desulfurization;

[0017] Figure 3 This utility model provides a schematic diagram of the cross-sectional structure of the filter cylinder of an atomizing spray device for flue gas desulfurization;

[0018] Figure 4 This utility model presents a three-dimensional structural diagram of a frame for an atomizing spray device for flue gas desulfurization.

[0019] Legend: 1. Tank body; 11. Inlet pipe; 12. Drain pipe; 13. Control panel; 14. Baffle; 15. Solenoid valve; 2. Filter cartridge; 21. Air inlet pipe; 22. Movable baffle; 23. Storage base; 24. Brush; 3. Drive motor; 31. Transmission gear; 4. First water pump; 41. Connecting pipe one; 5. Second water pump; 51. Connecting pipe two; 6. Spray pipe; 61. Spray head; 7. Frame; 71. Filter screen; 72. Rack; 8. Annular pipe. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification. Example

[0022] like Figures 1-4 As shown, this utility model provides a technical solution: an atomizing spray device for flue gas desulfurization, including a tank 1. An inlet pipe 11 and an outlet pipe 12 are fixedly installed on the surface of the tank 1. A control panel 13 is fixedly installed on the surface of the tank 1. A partition 14 is fixedly connected to the inner wall of the tank 1. A filter cylinder 2 is fixedly connected to one side of the outer wall of the tank 1. An air inlet pipe 21 is fixedly connected to the side of the filter cylinder 2. A drive motor 3 is fixedly installed on the top of the filter cylinder 2. A first water pump 4 and a second water pump 5 are fixedly installed on the other side of the outer wall of the tank 1. The interior of the tank 1 is fixedly... The filter cylinder 2 is equipped with a spray pipe 6, and has a frame 7 inside. An annular pipe 8 is fixedly installed on the top of the partition 14. A movable baffle 22 is movably installed on the bottom of the filter cylinder 2. A storage seat 23 is fixedly connected to the top of the inner wall of the filter cylinder 2. A brush 24 is fixedly connected to the bottom of the storage seat 23. The top of the frame 7 is movably installed inside the storage seat 23. A filter screen 71 is installed inside the frame 7. A rack 72 is fixedly connected to the top of the frame 7. A transmission gear 31 is fixedly connected to the output shaft of the drive motor 3. The side of the transmission gear 31 meshes with the side of the rack 72.

[0023] In this embodiment, limestone solution is added to the inlet pipe 11 and stored inside the tank 1. Then, the flue gas required for desulfurization is injected into the inlet pipe 21. The flue gas passes through the filter cylinder 2 and enters the tank. The filter screen 71 inside the frame 7 filters and sieves the solid particles in the gas, reducing the content of fixed impurities in the gas, thereby reducing the frequency of solution replacement. When too many impurities adhere to the surface of the filter screen 71 and affect the gas flow effect, the drive motor 3 is started to drive the transmission gear 31 to rotate. The transmission gear 31 meshes with the rack 72, thereby driving the frame 7 to rise vertically and move the frame 7 into the storage seat 23. The drive motor 3 drives the transmission gear 31 to reverse so that the frame 7 can fall down and reset. One end of the brush 24 is attached to the side of the filter screen 71. By moving the frame 7 up and down, the impurities adhering to the surface of the filter screen 71 are scraped off. The impurities can be cleaned by opening the movable baffle 22. Example

[0024] like Figures 1-4 As shown, the inlet ends of the first water pump 4 and the second water pump 5 are both connected to the bottom of the tank 1. The outlet end of the first water pump 4 is fixedly connected to a connecting pipe 41. The top of the connecting pipe 41 is connected to the inside of the spray pipe 6. The outer wall of the spray pipe 6 is fixedly installed with a nozzle 61. The outlet end of the second water pump 5 is fixedly connected to a connecting pipe 51. The top of the connecting pipe 51 is installed inside the tank 1. The bottom of the partition 14 is fixedly connected to a solenoid valve 15. The input end of the solenoid valve 15 is electrically connected to the output end of the control panel 13. The air inlet of the annular pipe 8 is installed at the bottom of the partition 14.

[0025] In this embodiment, when the gas enters the tank 1, the first water pump 4 draws the solution at the bottom of the tank 1 into the spray pipe 6, and then atomizes it through each nozzle 61, so that the solution mist fills the inside of the tank 1 and reacts with the sulfides in the gas. The second water pump 5 draws the solution at the bottom of the tank to the top of the baffle 14, so that the solution covers the gas outlet of the annular pipe 8. The solution height should not exceed the highest point of the annular pipe 8. According to the principle of communicating vessels, this can prevent the solution from flowing back into the annular pipe 8 and flowing out. The gas rises into the annular pipe 8 and flows out from the gas outlet of the annular pipe 8. The gas settles in the solution, which reacts and precipitates the sulfides in the gas, thereby improving the desulfurization effect of the gas. By opening the control panel 13 to put the solenoid valve 15 in the flow state, the solution at the top of the baffle 14 can be discharged.

[0026] The working principle of this embodiment is as follows: Flue gas enters the limestone solution tank 1 through the filter cylinder 2. The filter screen 71 filters and sieves the solid particles in the gas. When too many impurities adhere to the surface of the filter screen 71, affecting the gas flow, the drive motor 3 is activated, driving the transmission gear 31 to rotate reciprocally. The transmission gear 31, through meshing with the rack 72, drives the frame 7 to move up and down. Combined with the brush 24, the impurities adhering to the surface of the filter screen 71 are scraped off. When the gas enters the tank 1, the first water pump 4 draws the solution from the bottom of the tank 1 into the nozzle 61 and sprays it out. The solution mist reacts with the sulfides in the gas. The second water pump 5 draws the solution from the bottom of the tank to the top of the baffle 14. The gas rises and enters the annular pipe 8, flowing out from the top outlet. The gas settles in the solution, undergoing a secondary reaction and precipitation of the sulfides in the gas, thereby improving the desulfurization effect on the gas.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A fogging spray device for flue gas desulfurization comprising a tank body (1), characterized in that: The surface of the tank (1) is fixedly equipped with an inlet pipe (11) and an outlet pipe (12). The surface of the tank (1) is fixedly equipped with a control panel (13). The inner wall of the tank (1) is fixedly connected with a partition (14). The outer wall of the tank (1) is fixedly connected with a filter cylinder (2). The side of the filter cylinder (2) is fixedly connected with an air inlet pipe (21). The top of the filter cylinder (2) is fixedly equipped with a drive motor (3). The other side of the outer wall of the tank (1) is fixedly equipped with a first water pump (4) and a second water pump (5). The inside of the tank (1) is fixedly equipped with a spray pipe (6). The inside of the filter cylinder (2) is equipped with a frame (7). The top of the partition (14) is fixedly equipped with an annular pipe (8).

2. The atomizing and spraying device for flue gas desulfurization according to claim 1, characterized in that: A movable baffle (22) is movably installed at the bottom of the filter cylinder (2), a storage seat (23) is fixedly connected to the top of the inner wall of the filter cylinder (2), and a brush (24) is fixedly connected to the bottom of the storage seat (23).

3. The atomizing and spraying device for flue gas desulfurization according to claim 1, characterized in that: The top of the frame (7) is movably installed inside the storage base (23), and a filter (71) is provided inside the frame (7). A rack (72) is fixedly connected to the top of the frame (7).

4. The atomizing spray device for flue gas desulfurization according to claim 1, characterized in that: The output shaft of the drive motor (3) is fixedly connected to a transmission gear (31), and the side of the transmission gear (31) meshes with the side of the rack (72).

5. The atomizing and spraying device for flue gas desulfurization according to claim 1, characterized in that: The inlet ends of the first water pump (4) and the second water pump (5) are both connected to the bottom of the tank (1). The outlet end of the first water pump (4) is fixedly connected to a connecting pipe (41). The top of the connecting pipe (41) is connected to the inside of the spray pipe (6). The outer wall of the spray pipe (6) is fixedly equipped with a nozzle (61).

6. The atomizing and spraying device for flue gas desulfurization according to claim 1, characterized in that: The outlet end of the second water pump (5) is fixedly connected to a connecting pipe two (51), and the top end of the connecting pipe two (51) is installed inside the tank (1).

7. The atomizing and spraying device for flue gas desulfurization according to claim 1, characterized in that: A solenoid valve (15) is fixedly connected to the bottom of the partition (14). The input end of the solenoid valve (15) is electrically connected to the output end of the control panel (13). The air inlet of the annular pipe (8) is installed at the bottom of the partition (14).

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