Single-barrel type flue gas ash removal and desulfurization electrostatic tower

Abstract

The utility model provides a single-barrel type flue gas ash removal and desulfurization electrostatic tower which comprises an ash inlet barrel, a flue gas inlet is formed in the side edge of the ash inlet barrel, a liquid inlet pipe is connected to the bottom of a water tank, a spray head is communicated with the liquid inlet pipe and the water tank through an upper liquid conveying pipe, and a dust removal demister is arranged on the side edge of a dust removal chamber. According to the single-barrel type flue gas ash removal and desulfurization electrostatic tower, the flue gas inlet is formed in the side edge of the ash inlet barrel, when the flue gas is subjected to ash removal and desulfurization, the flue gas is sucked through the flue gas inlet, the entering flue gas enters the dust removal chamber, at the moment, the liquid inlet pipe conveys adsorption liquid in the water tank into the liquid conveying pipe, and the adsorption liquid enters the spray head through the liquid conveying pipe; according to the flue gas dust removal device, adsorption liquid is sprayed to flue gas entering the dust removal chamber through a spray head, so that dust, oxygen and sulfur in the flue gas can be adsorbed by the adsorption liquid, the adsorbed dust, oxygen and sulfur drop to a first filter screen in a first partition plate through the adsorption liquid, and the dust, oxygen and sulfur adsorbed by the adsorption liquid are filtered through the first filter screen.

Description

Technical Field

[0001] This utility model relates to the field of flue gas treatment technology in thermal power plants, specifically a single-barrel electrostatic tower for flue gas ash removal and desulfurization. Background Technology

[0002] With increasingly stringent environmental protection requirements, the emission standards for flue gas from thermal power plants are also becoming more stringent. Therefore, modern combustion furnaces are generally required to be equipped with desulfurization and ash removal electrostatic precipitators to reduce the ash and sulfur oxide content of the emitted flue gas. Desulfurization electrostatic precipitators are an important treatment device in industrial waste gas treatment, achieving different dust removal effects by using different dust removal agents. Currently, most existing equipment has poor dust removal efficiency, and the generated dust is difficult to remove, reducing both dust removal effectiveness and work efficiency, thus causing environmental pollution. Furthermore, the inability to recycle the adsorbent liquid leads to significant waste during flue gas treatment, thereby reducing its effectiveness. Summary of the Invention

[0003] In view of the above-mentioned defects or deficiencies in the prior art, this application aims to provide a single-barrel flue gas ash removal and desulfurization electrostatic tower, including an ash inlet barrel, a flue gas inlet on the side of the ash inlet barrel, a dust removal chamber on the side of the flue gas inlet, a water tank at the top of the ash inlet barrel, a liquid inlet pipe connected to the bottom of the water tank, the liquid inlet pipe being fixedly connected to a liquid delivery pipe at the bottom, a nozzle connected to the bottom of the liquid delivery pipe, the nozzle being connected to the liquid inlet pipe and the water tank through the upper liquid delivery pipe, and a dust collector and demister on the side of the dust removal chamber. The dust collector and demister has a flue gas outlet on its side. The bottom of the dust collection chamber has a first partition, the inner wall of the first partition has a first filter screen, the side of the first filter screen has a first retaining plate, the other side of the first retaining plate has a second retaining plate, the side of the second retaining plate has a pull ring, the lower part of the first filter screen has a liquid inlet tank, the lower part of the liquid inlet tank has a second partition, the inside of the second partition has a second filter screen, the lower part of the second filter screen has a liquid storage chamber, the side of the liquid storage chamber has a return pipe, and the return pipe has a water pump.

[0004] Preferably, the flue gas inlet is located on one side of the ash inlet bin, and the dust removal chamber is installed on one side of the flue gas inlet.

[0005] Preferably, the water tank is connected to the infusion pipe and the nozzle, which are installed on the inlet pipe.

[0006] Preferably, the dust collector and demister are installed on one side of the dust collection chamber, and the flue gas outlet is located on one side of the dust collector and demister.

[0007] Preferably, the first partition is installed below the dust removal chamber, the first filter screen is installed on the inner wall of the first partition, the first retaining plate is installed on one side of the first filter screen, the second retaining plate is installed on the other side of the first filter screen, the pull ring is installed on one side of the second retaining plate, the liquid inlet tank is installed below the first filter screen, the second partition is installed below the liquid inlet tank, the second partition and the first partition have a hollow structure, the second filter screen is installed on the inner wall of the second partition, and the liquid storage chamber is installed below the second filter screen.

[0008] Preferably, the return pipe is connected to one side of the liquid storage chamber, and the water pump is connected to the liquid storage chamber and the water tank through the return pipe. Beneficial effects

[0009] This single-barrel electrostatic precipitator for flue gas ash removal and desulfurization is installed on the side of the ash inlet barrel via the flue gas inlet. During flue gas ash removal and desulfurization, the flue gas is drawn in through the inlet and enters the dust removal chamber. At this time, the liquid inlet pipe delivers the adsorbent liquid from the water tank to the delivery pipe, which then enters the nozzle. The nozzle sprays the adsorbent liquid onto the flue gas entering the dust removal chamber, thereby adsorbing the dust, oxygen, and sulfur in the flue gas. The adsorbed dust, oxygen, and sulfur drip through the adsorbent liquid onto the first filter screen in the first partition. The filter screens filter the dust, oxygen, and sulfur adsorbed by the adsorbent solution. While the first filter screen filters the adsorbent solution, the solution drips through it into the inlet tank and then into the second filter screen. The second filter screen then filters the adsorbent solution again, effectively removing the dust, oxygen, and sulfur adsorbed by the solution, ensuring that the filtered solution can be reused. When a large amount of dust accumulates on the first and second filter screens, the operator can pull the pull rings outwards. This allows for cleaning or replacement of the pulled-out first and second filter screens. Pushing the cleaned screens inwards facilitates cleaning and improves the filtration efficiency of the adsorbent solution. The adsorbent solution then passes through the second filter screen into the storage chamber. A water pump then transports the adsorbent solution from the storage chamber to the return pipe, and through the return pipe, the clean adsorbent solution is transported to the water tank, allowing for the recycling of the adsorbent solution. This system effectively avoids wasting the adsorption liquid. After dust, oxygen, and sulfur drip down with the adsorption liquid, the flue gas enters the flue gas outlet through the dust removal chamber. At the same time, the flue gas passes through the dust collector and demister, which removes oxygen, sulfur, and dust from the flue gas again. Through the coordinated use of the dust removal chamber, water tank, inlet pipe, delivery pipe, nozzles, and dust collector and demister, the system ensures that dust, oxygen, sulfur, and other pollutants in the flue gas can be effectively removed during the flue gas treatment process, so that the emitted flue gas can meet environmental protection standards. Attached Figure Description

[0010] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0011] Figure 1 This is a schematic diagram of the overall structure of the single-barrel flue gas desulfurization electrostatic tower of this utility model;

[0012] Figure 2 This is a schematic diagram of the right side of the single-barrel flue gas desulfurization electrostatic tower of this utility model;

[0013] Figure 3 This utility model Figure 1 Enlarged structural diagram at point P.

[0014] In the diagram: 1. Ash inlet bin; 2. Flue gas inlet; 3. Dust removal chamber; 4. Water tank; 5. Liquid inlet pipe; 6. Liquid delivery pipe; 7. Nozzle; 8. Dust removal sprayer; 9. Flue gas outlet; 10. First partition; 11. First filter screen; 12. First clamping plate; 13. Second clamping plate; 14. Pull ring; 15. Liquid inlet bin; 16. Second partition; 17. Second filter screen; 18. Liquid storage chamber; 19. Return pipe; 20. Water pump. Detailed Implementation

[0015] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0016] The accompanying drawings in this utility model embodiment: different types of cross-sectional lines in the drawings are not labeled according to national standards, nor do they specify the material requirements of the components. They are used to distinguish the cross-sectional views of the components in the drawings.

[0017] Please see Figure 1-3A single-barrel flue gas ash removal and desulfurization electrostatic tower includes an ash inlet 1, a flue gas inlet 2 on the side of the ash inlet 1, a dust removal chamber 3 on the side of the flue gas inlet 2, a water tank 4 at the top of the ash inlet 1, a liquid inlet pipe 5 connected to the bottom of the water tank 4, the liquid inlet pipe 5 being fixedly connected to a liquid delivery pipe 6 at the bottom, a nozzle 7 connected to the bottom of the liquid delivery pipe 6, the nozzle 7 being connected to the liquid inlet pipe 5 and the water tank 4 through the upper liquid delivery pipe 6, a dust collector and demister 8 on the side of the dust removal chamber 3, and a flue gas outlet 9 on the side of the dust collector and demister 8. The bottom is provided with a first partition 10, the inner wall of the first partition 10 is provided with a first filter screen 11, the side of the first filter screen 11 is provided with a first retaining plate 12, the other side of the first retaining plate 12 is provided with a second retaining plate 13, the side of the second retaining plate 13 is provided with a pull ring 14, the lower part of the first filter screen 11 is provided with a liquid inlet tank 15, the lower part of the liquid inlet tank 15 is provided with a second partition 16, the inside of the second partition 16 is provided with a second filter screen 17, the lower part of the second filter screen 17 is provided with a liquid storage chamber 18, the side of the liquid storage chamber 18 is provided with a return pipe 19, and a water pump 20 is provided in the return pipe 19.

[0018] The flue gas inlet 2 is located on one side of the ash inlet 1, and the dust removal chamber 3 is installed on one side of the flue gas inlet 2.

[0019] The water tank 4 is connected to the infusion pipe 6, which is installed on the infusion pipe 5, and the nozzle 7.

[0020] The dust collector and demister 8 is installed on one side of the dust removal chamber 3, and the flue gas outlet 9 is located on one side of the dust collector and demister 8.

[0021] The first partition 10 is installed below the dust removal chamber 3, the first filter screen 11 is installed on the inner wall of the first partition 10, the first retaining plate 12 is installed on one side of the first filter screen 11, the second retaining plate 13 is installed on the other side of the first filter screen 11, the pull ring 14 is installed on one side of the second retaining plate 13, the liquid inlet tank 15 is installed below the first filter screen 11, the second partition 16 is installed below the liquid inlet tank 15, the second partition 16 and the first partition 10 have a hollow structure, the second filter screen 17 is installed on the inner wall of the second partition 16, and the liquid storage chamber 18 is installed below the second filter screen 17.

[0022] The return pipe 19 is connected to one side of the liquid storage chamber 18, and the water pump 20 is connected to the liquid storage chamber 18 and the water tank 4 through the return pipe 19.

[0023] In use, the flue gas inlet 2 is installed on the side of the ash inlet 1. When desulfurizing and removing ash from the flue gas, the flue gas is drawn in through the flue gas inlet 2 and enters the dust removal chamber 3. At this time, the liquid inlet pipe 5 transports the adsorbent liquid in the water tank 4 to the liquid delivery pipe 6, and then into the nozzle 7 through the liquid delivery pipe 6. The nozzle 7 sprays the adsorbent liquid onto the flue gas entering the dust removal chamber 3, so that the dust and oxygen sulfur in the flue gas are adsorbed by the adsorbent liquid. The adsorbed dust and oxygen sulfur drip through the adsorbent liquid onto the first filter screen 11 in the first partition 10. The dust adsorbed by the adsorbent liquid passes through the first filter screen 11. The adsorbent is filtered for oxygen and sulfur. While the first filter 11 filters the adsorbent, the adsorbent drips through the first filter 11 into the inlet tank 15 and then enters the second filter 17. The second filter 17 then filters the adsorbent again, effectively removing the dust, oxygen, and sulfur adsorbed by the adsorbent, ensuring that the filtered adsorbent can be reused. When a large amount of dust accumulates on the first and second filters 17, the operator can pull the first and second filters 11 and 17 outwards by holding the pull ring 14. Pulling 14 outwards allows staff to clean or replace the first filter screen 11 and the second filter screen 17. The cleaned screens are then pushed inwards, facilitating cleaning and improving their filtration efficiency. The adsorbent then passes through the second filter screen 17 into the storage chamber 18. The water pump 20 then transports the adsorbent from the storage chamber 18 to the return pipe 19, and through the return pipe 19, the clean adsorbent is transported to the water tank 4. The adsorbent solution can be recycled, effectively avoiding waste. When dust, oxygen, and sulfur drip down with the adsorbent solution, the flue gas enters the flue gas outlet 9 through the dust removal chamber 3. At the same time as the flue gas enters the flue gas outlet 9, it passes through the dust collector and demister 8, which removes oxygen, sulfur, and dust from the flue gas again. Through the coordinated use of the dust removal chamber 3, water tank 4, liquid inlet pipe 5, liquid delivery pipe 6, nozzle 7, and dust collector and demister 8, the dust, oxygen, sulfur, and other pollutants in the flue gas can be effectively removed during the flue gas treatment process, so that the emitted flue gas can meet environmental protection standards.

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A single-barrel flue gas ash removal and desulfurization electrostatic tower, comprising an ash inlet barrel (1), characterized in that: The ash inlet (1) is provided with a flue gas inlet (2) on its side, and a dust removal chamber (3) is provided on its side. A water tank (4) is provided on the upper part of the ash inlet (1). A liquid inlet pipe (5) is connected to the bottom of the water tank (4). The liquid inlet pipe (5) is fixedly connected to the liquid delivery pipe (6) at the bottom. A nozzle (7) is connected to the bottom of the liquid delivery pipe (6). The nozzle (7) is connected to the liquid inlet pipe (5) and the water tank (4) through the liquid delivery pipe (6) at the top. A dust collector and demister (8) is provided on the side of the dust removal chamber (3). A flue gas outlet (9) is provided on the side of the dust collector and demister (8). A first partition (10) is provided at the bottom of the dust removal chamber (3). The inner wall of the first partition (10) is provided with a first filter screen (11), the side of the first filter screen (11) is provided with a first retaining plate (12), the other side of the first retaining plate (12) is provided with a second retaining plate (13), the side of the second retaining plate (13) is provided with a pull ring (14), the lower part of the first filter screen (11) is provided with a liquid inlet tank (15), the lower part of the liquid inlet tank (15) is provided with a second partition (16), the second partition (16) is provided with a second filter screen (17) inside, the lower part of the second filter screen (17) is provided with a liquid storage chamber (18), the side of the liquid storage chamber (18) is provided with a return pipe (19), and the return pipe (19) is provided with a water pump (20).

2. The single-barrel flue gas desulfurization electrostatic tower according to claim 1, characterized in that: The flue gas inlet (2) is located on one side of the ash inlet (1), and the dust removal chamber (3) is installed on one side of the flue gas inlet (2).

3. The single-barrel flue gas desulfurization electrostatic tower according to claim 1, characterized in that: The water tank (4) is connected to the infusion pipe (6) and the nozzle (7) which are set on the inlet pipe (5).

4. The single-barrel flue gas desulfurization electrostatic tower according to claim 1, characterized in that: The dust collector and demister (8) is installed on one side of the dust removal chamber (3), and the flue gas outlet (9) is located on one side of the dust collector and demister (8).

5. A single-barrel flue gas desulfurization electrostatic tower according to claim 1, characterized in that: The first partition (10) is installed below the dust removal chamber (3), the first filter screen (11) is installed on the inner wall of the first partition (10), the first clamping plate (12) is installed on one side of the first filter screen (11), the second clamping plate (13) is installed on the other side of the first filter screen (11), the pull ring (14) is installed on one side of the second clamping plate (13), the liquid inlet tank (15) is installed below the first filter screen (11), the second partition (16) is installed below the liquid inlet tank (15), the second partition (16) and the first partition (10) are hollow structures, the second filter screen (17) is installed on the inner wall of the second partition (16), and the liquid storage chamber (18) is installed below the second filter screen (17).

6. The single-barrel flue gas desulfurization electrostatic tower according to claim 1, characterized in that: The return pipe (19) is connected to one side of the liquid storage chamber (18), and the water pump (20) is connected to the liquid storage chamber (18) and the water tank (4) through the return pipe (19).

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