Flue gas desulfurization and dust removal all-in-one machine

Abstract

The utility model discloses a flue gas desulfurization and dust removal all-in-one machine, and belongs to the technical field of flue gas desulfurization and dust removal devices. Comprising a cooling box and a reaction box, the upper part of the side wall of the cooling box is communicated with an electrostatic dust collector through a pipeline I, a water circulation filtering cooling mechanism is arranged on the cooling box, the middle part of the side wall of the cooling box is communicated with the upper part of the reaction box through a pipeline II, one end of the pipeline II penetrates through the side wall of the cooling box, and the part in the cooling box is opened downwards; after flue gas enters the electrostatic dust collector, dust in the flue gas carries positive charges, then the dust is adsorbed to a dust collection plate with negative charges, then the dust falls into a dust hopper on the lower portion of the electrostatic dust collector through vibration of the dust collection plate and is collected regularly, and water can be repeatedly used through the water circulation filtering and cooling mechanism. Therefore, waste is avoided; a part of the pipeline II which is positioned in the cooling box and is provided with a downward opening enables water in the cooling box not to enter the reaction box.

Description

Technical Field

[0001] The utility model provides a flue gas desulfurization and dust removal integrated machine, belonging to the technical field of flue gas desulfurization and dust removal devices. Background Technique

[0002] In processes such as combustion and industrial production, a mixed gas containing a large amount of solid particles, harmful gases such as sulfur dioxide and nitrogen oxides, and water vapor is called flue gas. The particles and harmful gases in the flue gas pose a serious impact on the environment and human health.

[0003] Patent number: CN219355664U; discloses a flue gas desulfurization, denitrification and dust removal device, which relates to the technical field of desulfurization, denitrification and dust removal, including a floor. An air dust removal box is arranged on the upper surface of the floor, a cooling box is arranged on the upper surface of the floor, a reaction box is arranged on the upper surface of the floor, a water tank is arranged on the upper surface of the floor, a water supply pipe is fixedly arranged on the water tank, a water outlet pipe is arranged on the cooling box, a plurality of filter bags are arranged in the air dust removal box, and a batch processing mechanism is arranged on the air dust removal box.

[0004] The above patent drives all filter bags to move synchronously through a fixed frame and a movable frame to realize batch operation of the filter bags and improve the replacement speed; by setting a motor to rotate the spray head, the contact area between water and flue gas is increased to improve the cooling efficiency; however, the filter bags are consumables, especially high-quality filter bags, and their cost is relatively high. Moreover, if the particles in the flue gas are too fine, the filter bags are easily blocked, resulting in a reduction in dust removal efficiency and possible damage to the filter bags. In addition, high-temperature flue gas and corrosive gases will also damage the filter bags and affect their service life. Moreover, when cooling the flue gas after dust removal, the water resources are not reused, so the waste is serious. In addition, the connection design between the cooling box and the reaction box easily allows water to enter the reaction box. And the electron beam desulfurization and denitrification technology requires special electron accelerator equipment. The electron accelerator is a precision device, and has high requirements for its operating environment, stability and maintenance. Once the equipment fails, it may affect the normal operation of the entire desulfurization and denitrification system and the desulfurization effect. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is that the filter bags of the bag filter used in the current device are easily blocked, resulting in a reduction in dust removal efficiency, and when cooling the flue gas after dust removal, the waste of water resources is serious.

[0006] In order to solve the above problems, the technical solution proposed by the utility model is: a flue gas desulfurization and dust removal integrated machine, including a cooling box and a reaction box; the upper part of the side wall of the cooling box is connected to an electrostatic precipitator through a first pipeline, a water circulation filtration and cooling mechanism is arranged on the cooling box, the middle part of the side wall of the cooling box is connected to the upper part of the reaction box through a second pipeline, and one end of the second pipeline passes through the side wall of the cooling box and the part located inside the cooling box has an opening facing downwards.

[0007] As an improvement, the water circulation filtration and cooling mechanism includes a hollow motor disposed at the upper end of the cooling box. The output shaft of the hollow motor passes through the upper wall of the cooling box and is connected to a disc at its end. A plurality of nozzles are provided at the lower end of the disc. The upper end of the hollow motor is connected to a third pipe, and the end of the third pipe is connected to the lower part of the water tank. The upper part of the water tank is connected to the lower part of the cooling box through a fourth pipe;

[0008] As an improvement, the lower end surfaces of the plurality of nozzles are higher than the first pipe;

[0009] As an improvement, the output shaft of the hollow motor is connected to the third pipe through a sealed bearing. The outer diameter of the sealed bearing is the same as the inner diameter of the output shaft of the hollow motor, and the inner diameter of the sealed bearing is the same as the outer diameter of the third pipe;

[0010] As an improvement, a first pump is provided on the third pipe, and a second pump and a filtration box are provided on the fourth pipe;

[0011] As an improvement, a fifth pipe for the flue gas to be treated to enter is provided on one side of the electrostatic precipitator, and a sixth pipe for discharging the flue gas after desulfurization and dust removal is provided on one side of the reaction tank.

[0012] Advantages of the present utility model:

[0013] By providing an electrostatic precipitator, after the flue gas enters, the dust in the flue gas will carry a positive charge. When the dust passes through the dust removal plate of the electrostatic precipitator, since the dust removal plate has a negative charge, the dust will be adsorbed onto the dust removal plate, and then by vibrating the dust removal plate, the dust will fall into the ash hopper at the lower part of the electrostatic precipitator, and then it can be collected regularly. By providing a water circulation filtration and cooling mechanism, after the water cools the flue gas after dust removal, it can be reused, thus avoiding waste; by providing a second pipe with a partially downward opening inside the cooling box, the water in the cooling box will not enter the reaction tank. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of a flue gas desulfurization and dust removal integrated machine of the present utility model Figure 1 。

[0015] Figure 2 is a schematic structural diagram of a flue gas desulfurization and dust removal integrated machine of the present utility model Figure 2 。

[0016] Figure 3 is a schematic diagram of the internal structure of the cooling box of a flue gas desulfurization and dust removal integrated machine of the present utility model.

[0017] 1. Cooling box; 2. Reaction box; 201. Pipe six; 3. Pipe one; 4. Electrostatic precipitator; 401. Pipe five; 5. Water circulation filtration and cooling mechanism; 501. Hollow motor; 502. Disc; 503. Sprinkler; 504. Pipe three; 505. Water tank; 506. Pipe four; 507. Pump one; 508. Pump two; 509. Filter box; 6. Pipe two. Detailed implementation mode

[0018] The present utility model will be further described below with reference to the accompanying drawings.

[0019] According to Figure 1 As shown in FIG. -3: The present utility model provides a flue gas desulfurization and dust removal integrated machine, which includes a cooling box 1 and a reaction box 2; the upper part of the side wall of the cooling box 1 is connected to an electrostatic precipitator 4 through a pipe one 3, a water circulation filtration and cooling mechanism 5 is provided on the cooling box 1, the middle part of the side wall of the cooling box 1 is connected to the upper part of the reaction box 2 through a pipe two 6, one end of the pipe two 6 passes through the side wall of the cooling box 1 and the part located inside the cooling box 1 has an opening facing downwards, a pipe five 401 for the flue gas to be treated to enter is provided on one side of the electrostatic precipitator 4, and a pipe six 201 for discharging the flue gas after desulfurization and dust removal is provided on one side of the reaction box 2; by setting the electrostatic precipitator 4, after the flue gas enters, the dust in the flue gas will carry a positive charge. When the dust passes through the dust removal plate of the electrostatic precipitator 4, because the dust removal plate carries a negative charge, the dust will be adsorbed on the dust removal plate, and then by vibrating the dust removal plate, the dust will fall into the ash hopper at the lower part of the electrostatic precipitator 4, and then it can be collected regularly. By setting the water circulation filtration and cooling mechanism 5, the water can be reused after cooling the flue gas after dust removal, thus avoiding waste; by setting the pipe two 6 with an opening facing downwards inside the cooling box 1, the water in the cooling box 1 will not enter the reaction box 2;

[0020] According to Figure 2 、 3As shown: The water circulation filtration and cooling mechanism 5 includes a hollow motor 501 disposed at the upper end of the cooling box 1. The output shaft of the hollow motor 501 passes through the upper wall of the cooling box 1 and is connected to a disc 502 at its end. A number of spray nozzles 503 are provided at the lower end of the disc 502. The upper end of the hollow motor 501 is connected to a third pipe 504. The end of the third pipe 504 is connected to the lower part of a water tank 505. The upper part of the water tank 505 is connected to the lower part of the cooling box 1 through a fourth pipe 506. The output shaft of the hollow motor 501 is connected to the third pipe 504 through a sealed bearing. The outer diameter of the sealed bearing is the same as the inner diameter of the output shaft of the hollow motor 501, and the inner diameter of the sealed bearing is the same as the outer diameter of the third pipe 504. A first pump 507 is provided on the third pipe 504, and a second pump 508 and a filter box 509 are provided on the fourth pipe 506. In this way, by starting the first pump 507, the water in the water tank 505 can flow into the output shaft of the hollow motor 501, then enter the disc 502, and finally cool the dust after dust removal through the spray nozzles 503. Starting the second pump 508 will transport the water falling below the cooling box 1 into the water tank 505. When the water passes through the filter box 509, it will be filtered by the filter screen in the filter box 509, preventing impurities from entering the water tank 505. The hollow motor 501 enables the disc 502 and the spray nozzles 503 to rotate, thus increasing the coverage area of the sprayed water;

[0021] According to Figure 3 As shown: The lower end surfaces of a number of spray nozzles 503 are higher than the first pipe 3; in this way, the flue gas after dust removal can be completely cooled, thus preventing some hot air from accumulating above the disc 502.

[0022] Principle of the utility model: During use, first start the electrostatic precipitator 4, the hollow motor 501, the first pump body 507, the second pump body 508, and the electron beam flue gas desulfurization device in the reaction tank 2. Then connect the fifth pipeline 401 to the discharge pipeline of the flue gas to be treated. When the flue gas enters the electrostatic precipitator 4, the dust in the flue gas will carry a positive charge. When the dust passes through the dust removal plate of the electrostatic precipitator 4, the dust will be adsorbed onto the dust removal plate with a negative charge. Then, by vibrating the dust removal plate, the dust will fall into the ash hopper at the lower part of the electrostatic precipitator 4. Next, the dust-removed flue gas will enter the cooling tank 1 through the first pipeline 3. The first pump body 507 will cause the water in the water tank 505 to flow into the output shaft of the hollow motor 501, then enter the disc 502, and finally cool the dust after dust removal through the spray head 503. The second pump body 508 will transport the water that has fallen below the cooling tank 1 to the water tank 505. When the water passes through the filter tank 509, it will be filtered by the filter screen in the filter tank 509 to prevent impurities from entering the water tank 505. At the same time, the hollow motor 501 enables the disc 502 and the spray head 503 to rotate, increasing the coverage area of the sprayed water. When the flue gas is cooled, it will enter the reaction tank 2 through the second pipeline 6 with a partially downward opening inside the cooling tank 1, so that water will not enter the reaction tank 2, and then be desulfurized by the electron beam flue gas desulfurization device in the reaction tank 2, and finally be discharged through the sixth pipeline 201;

[0023] When there is a lot of dust in the ash hopper of the electrostatic precipitator 4, place a container below, and then open the ash hopper to collect the fallen dust.

[0024] The above describes the utility model and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the utility model, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it and, without departing from the creative concept of the utility model, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the utility model.

Claims

1. A flue gas desulfurization and dust removal integrated machine, comprising a cooling box (1) and a reaction box (2); characterized in that: The upper part of the side wall of the cooling box (1) is connected to the electrostatic precipitator (4) via a pipe 1 (3), and a water circulation filtering and cooling mechanism (5) is provided on the cooling box (1). The middle part of the side wall of the cooling box (1) is connected to the upper part of the reaction box (2) via a pipe 2 (6), and one end of the pipe 2 (6) passes through the side wall of the cooling box (1) and is located inside the cooling box (1) with the opening facing downward.

2. The integrated flue gas desulfurization and dust removal machine according to claim 1, characterized in that: The water circulation filtering and cooling mechanism (5) comprises a hollow motor (501) arranged at the upper end of the cooling box (1); the output shaft of the hollow motor (501) passes through the upper wall of the cooling box (1) and the end thereof is connected to the disc (502); a plurality of nozzles (503) are arranged at the lower end of the disc (502); the upper end of the hollow motor (501) is connected to a pipe three (504); the end of the pipe three (504) is connected to the lower part of the water tank (505); the upper part of the water tank (505) is connected to the lower part of the cooling box (1) via a pipe four (506).

3. The integrated flue gas desulfurization and dust removal machine according to claim 2 is characterized in that: The lower end surfaces of the plurality of nozzles (503) are higher than the pipe one (3).

4. The integrated flue gas desulfurization and dust removal machine according to claim 2, characterized in that: The output shaft of the hollow motor (501) is connected to the pipeline three (504) via a sealed bearing, the outer diameter of the sealed bearing is the same as the inner diameter of the output shaft of the hollow motor (501), and the inner diameter of the sealed bearing is the same as the outer diameter of the pipeline three (504).

5. The integrated flue gas desulfurization and dust removal machine according to claim 2, characterized in that: The pipeline three (504) is provided with a pump body one (507), and the pipeline four (506) is provided with a pump body two (508) and a filter box (509).

6. The integrated flue gas desulfurization and dust removal machine according to claim 1, characterized in that: One side of the electrostatic precipitator (4) is provided with a pipe five (401) for the flue gas to be treated to enter, and one side of the reaction box (2) is provided with a pipe six (201) for discharging the flue gas after desulfurization and dust removal.

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