Device for removing dust in flue gas

Abstract

The invention discloses a device for removing dust in flue gas, and relates to the field of flue gas treatment.The device comprises a box body, a first purification bin and a second purification bin, the first purification bin and the second purification bin are formed in the box body, opening and closing doors are arranged at the front ends of the first purification bin and the second purification bin, and a gas inlet pipeline is installed at the lower end of the left side of the box body in a penetrating mode; and the right side of the air inlet pipeline is located in the first purification bin, an air collecting plate is rotationally installed in the box body, and a preliminary removal anti-blocking mechanism is arranged on the right side of the air collecting plate. According to the device for removing the dust in the flue gas, when a filter screen plate vibrates back and forth, a traction rope is pulled, the traction rope can pull a lifting plate at the upper end to descend under the conversion of a guide wheel, and when the traction rope is loosened, the lifting plate ascends under the action of a reset spring, so that the flue gas can be intermittently conveyed; the poor secondary removal effect caused by continuous feeding of the flue gas is avoided, the efficiency of removing dust in the flue gas can be improved, and the practicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flue gas treatment, in particular to a device for removing dust in flue gas. BACKGROUND

[0002] The device for removing dust in flue gas is a device for removing particulate matter (dust) in discharged flue gas to reduce environmental pollution and protect human health. These dust removal devices can be used alone or in combination to improve dust removal efficiency and adapt to different working conditions. Selecting the appropriate removal device usually requires comprehensive consideration of factors such as the characteristics of the flue gas, the properties and concentration of the dust, etc. In the prior art, the dust in the flue gas is filtered through a filter screen. The filtered gas tends to accumulate on the surface of the filter screen. If the device is used for a long time, the filter screen is likely to be blocked, which requires manual cleaning and is inconvenient, which can affect the use of the device. In order to overcome the above shortcomings, the prior art (publication number CN113181717A) discloses an energy-saving and environmentally friendly flue gas dust treatment device. The treatment device includes a filter box, a flue gas purification device is arranged in the filter box, the flue gas purification device is rotatably connected with the filter box, an activated carbon filter plate is arranged in the filter box, a dust cleaning device is arranged between the activated carbon filter plate and the flue gas purification device for simultaneously cleaning the dust on the flue gas purification device and the activated carbon filter plate, a purification tower is arranged on one side of the filter box and communicates with the filter box, a rotatable filter assembly is arranged in the purification tower, and a scale cleaning piece is arranged between the filter assembly and the inner wall of the purification tower. This can reduce the blockage of filter holes by dust and also clean impurities adhering to the inner wall of the device, and has the characteristics of wide adaptability and strong practicality. In order to overcome the above shortcomings, the prior art (publication number CN113856361B) discloses a flue gas dust purification device for prebaked anode production. By setting a shielding mechanism, the first baffle and the second baffle are rotated by ninety degrees by rotating the bidirectional bevel gear by ninety degrees. At this time, the second baffle shields the inner side of the first connecting pipe, and the second connecting pipe is opened by the rotation of the first baffle. At this time, the flue gas will enter the second connecting pipe, and the flue gas and dust will be filtered by the filter bin and filter screen on the inner side of the second connecting pipe. Thus, the filter bin on the inner side of the first connecting pipe can be disassembled and replaced without affecting the operation of the equipment, providing convenience for the use of the equipment. Although the prior art can overcome the above-mentioned shortcomings, there are still other problems in its operation, such as: if too much flue gas is added at one time for dust filtration, the filtration effect will be poor, and dust will be left in the flue gas, resulting in the presence of dust residues, which cannot achieve the removal of dust in the flue gas. SUMMARY

[0003] The present application aims to provide a device for removing dust in flue gas to solve the problem that when flue gas is added for dust filtration, excessive flue gas added at one time can easily lead to poor filtration effect.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a device for removing dust in flue gas, comprising a box body and a first purification bin and a second purification bin opened inside the box body, and the front ends of the first purification bin and the second purification bin are provided with a switch door, a gas inlet pipe is installed through the left lower end of the box body, and the right side of the gas inlet pipe is located inside the first purification bin; A wind collecting plate is rotatably installed inside the box body, and a preliminary removal anti-blocking mechanism is provided on the right side of the wind collecting plate, and the preliminary removal anti-blocking mechanism is provided with a filter screen plate, and the filter screen plate is located inside the first purification bin; A connecting channel is installed through the inside of the box body, and an intermittent feeding mechanism is provided inside the connecting channel, and the intermittent feeding mechanism is provided with a rubber sealing sleeve, and the rubber sealing sleeve is fixedly installed at the bottom of the connecting channel, the rubber sealing sleeve is in the shape of a sheet, the number of rubber sealing sleeves is four, and the rubber sealing sleeves seal the bottom of the connecting channel; A water storage tank is fixedly installed on the inner wall of the box body, a first air bag is provided at the bottom of the water storage tank, a receiving plate is fixedly installed at the upper end of the first air bag, an automatic discharge mechanism is provided on the outer side of the receiving plate, and the automatic discharge mechanism is provided with a discharge port, and the front end of the discharge port is installed through the rear end of the air guide pipe.

[0005] Further, a limiting groove is opened on the inner wall of the box body, and limiting blocks are fixedly installed at the upper and lower ends of the filter screen plate, and the connecting mode of the limiting blocks and the limiting grooves is sliding connection.

[0006] Further, a transmission belt is nestedly installed at the rear end of the wind collecting plate, a round rod is nestedly installed at the right side of the transmission belt, the rear end of the round rod is rotatably installed on the inner wall of the box body, the front end of the round rod is fixedly installed with a round rod, the surface of the round rod is nestedly installed with a push rod, and the right side of the push rod is fixedly installed on the left side of the filter screen plate.

[0007] Further, an inclined push block is fixedly installed on the outer side of the filter screen plate, and the outer side of the inclined push block is attached to the inner wall of the box body, a discharge port is opened at the bottom of the box body, a clamping collection box is provided below the discharge port, a protrusion is provided on the outer side of the clamping collection box, and the clamping collection box is clamped at the bottom of the box body.

[0008] Furthermore, a reset spring is provided at the lower end of the connecting channel, and a lifting plate is provided at the lower end of the reset spring. A traction rope is fixedly installed at the lower end of the lifting plate, and the left side of the traction rope is fixedly installed on the right side of the filter screen plate. A guide wheel is attached to the middle end of the traction rope, and the right side of the guide wheel is fixedly installed on the inner wall of the box.

[0009] Furthermore, a top block is installed through the interior of the lifting plate, and the top of the top block corresponds to the position of the rubber sealing sleeve. The interior of the top block is also through, and a second magnet is fixedly installed at the upper end of the top block. A first magnet is provided at the lower end of the rubber sealing sleeve, and the positions of the first magnet and the second magnet correspond, and the magnetic poles of the first magnet and the second magnet are opposite.

[0010] Furthermore, an air guide pipe is fixedly installed at the upper end of the connecting channel, and a water storage tank is installed through the left side of the air guide pipe, with the lower left end of the air guide pipe located at the bottom of the water storage tank.

[0011] Furthermore, an air outlet pipe is installed through the left side of the water storage tank, and a water inlet is installed through the upper end of the water storage tank, and the water inlet is a knob type.

[0012] Furthermore, a sliding groove is provided on the inner wall of the front end of the water storage tank, and a slider is fixedly installed on the front end of the receiving plate, and the slider is connected to the sliding groove in a sliding connection manner.

[0013] Furthermore, ventilation pipes are installed through the left and right sides of the first airbag, and a second airbag is installed through the rear end of the ventilation pipes. The lower end of the second airbag is fixedly installed on the outside of the discharge port, and a lifting sealing plate is fixedly installed on the upper end of the second airbag. The lower end of the lifting sealing plate is nested inside the discharge port, and the material of the second airbag is elastically designed.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. The housing is equipped with a first purification chamber and a second purification chamber, and a switch door is provided at the front end of the first and second purification chambers. As the push rod moves back and forth, the filter screen can move back and forth and shake under the limit of the limit block and the limit groove, so as to avoid the filter screen from clogging after long-term use when filtering dust in flue gas, thereby improving the effect of the device. Furthermore, when the device is in use, the dust shaken off by the back-and-forth movement of the filter screen falls into the bottom of the box along the inclined push block. Under the push of the inclined push block, the dust enters the interior of the snap-fit ​​collection box through the discharge port. The snap-fit ​​collection box is equipped with a snap-fit ​​block on the outside, which can snap into the inside of the box and can also be easily removed and installed, providing convenience for the staff and making it easy for them to use and clean. 2. Add dust removal water to the inside of the water storage tank through the water inlet. When removing dust from the flue gas, the flue gas that has been initially filtered enters the air guide pipe through the connecting channel. The air guide pipe delivers the gas to the clean water inside the water storage tank. As the flue gas rises through the water, the dust is adsorbed by the water, and the clean flue gas is discharged through the air outlet pipe, achieving a secondary removal effect and improving the dust removal efficiency in the flue gas. Furthermore, when the filter screen vibrates back and forth, it pulls the traction rope. Under the switching of the guide wheel, the traction rope can pull the upper lifting plate down. When the traction rope is released, the lifting plate rises under the action of the return spring. Therefore, it can intermittently transport flue gas, avoid the poor effect of secondary removal caused by continuous flue gas input, improve the efficiency of dust removal in flue gas, and improve the practicality of the device. 3. After secondary dust filtration, a lot of impurities accumulate inside the water flow after long-term use. The impurities accumulate inside the receiving plate. The receiving plate slides along the chute under the action of the slider. As the impurities accumulate, the discharge port opens, and the wastewater and impurities are discharged together, thus achieving the effect of automatic discharge and making it convenient for operators to use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention viewed from below; Figure 3 This is a rear-view stereoscopic structural diagram of the present invention; Figure 4 This is a frontal sectional view of the three-dimensional structure of the present invention; Figure 5 This is a preliminary three-dimensional structural diagram of the anti-blocking mechanism of the present invention; Figure 6 This is a three-dimensional structural diagram of the feed port of the present invention (front sectional view). Figure 7 This is a three-dimensional structural diagram of the intermittent feeding mechanism of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the top block of the present invention in frontal cross-section; Figure 9 This is a side view of the three-dimensional structure of the receiving plate of the present invention; Figure 10 This is a side-sectional three-dimensional structural diagram of the discharge port of the present invention.

[0016] In the diagram: 1. Box body; 2. First purification chamber; 3. Second purification chamber; 4. Opening and closing door; 5. Air inlet pipe; 6. Air collection plate; 7. Drive belt; 8. Round wheel rod; 9. Round rod; 10. Push rod; 11. Filter screen plate; 12. Limiting block; 13. Limiting groove; 14. Inclined push block; 15. Discharge port; 16. Engaging collection box; 17. Traction rope; 18. Guide wheel; 19. Lifting plate; 20. Top block; 21. Return spring; 22. Connecting channel; 23. Rubber sealing sleeve; 24. First magnet; 25. Second magnet; 26. Air guide pipe; 27. Water storage tank; 28. Air outlet pipe; 29. ​​Water inlet; 30. First airbag; 31. Receiving plate; 32. Slider; 33. Slide groove; 34. Discharge port; 35. Air exchange pipe; 36. Second airbag; 37. Lifting sealing plate. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1:

[0019] like Figures 1-6 and Figure 9The technical solution shown addresses the problem of filter clogging during prolonged use of dust removal equipment in flue gas. It discloses: a housing 1 and a first purification chamber 2 and a second purification chamber 3 within the housing 1. Each purification chamber 2 and 3 has a door 4 at its front end. An air inlet pipe 5 is installed through the lower left side of the housing 1, with its right side located inside the first purification chamber 2. An air collection plate 6 is rotatably mounted inside the housing 1, and a preliminary anti-clogging mechanism is located on the right side of the air collection plate 6. This mechanism includes a filter screen 11 located inside the first purification chamber 2. A limiting groove 13 is formed on the inner wall of the housing 1, and limiting blocks 12 are fixedly installed at both the upper and lower ends of the filter screen 11. Furthermore, the connection between the limiting block 12 and the limiting groove 13 is a sliding connection. The rear end of the air collecting plate 6 is nested with a transmission belt 7, and the right side of the transmission belt 7 is nested with a round wheel rod 8. The rear end of the round wheel rod 8 is rotatably installed on the inner wall of the box 1, and the front end of the round wheel rod 8 is fixedly installed with a round rod 9. The surface of the round rod 9 is nested with a push rod 10, and the right side of the push rod 10 is fixedly installed on the left side of the filter screen plate 11. The outer side of the filter screen plate 11 is fixedly installed with an inclined push block 14, and the outer side of the inclined push block 14 is attached to the inner wall of the box 1. The bottom of the box 1 is provided with a discharge port 15, and a snap-fit ​​collection box 16 is provided below the discharge port 15. The outer side of the snap-fit ​​collection box 16 is provided with a protrusion, and the snap-fit ​​collection box 16 is snapped into the bottom of the box 1. In this embodiment, a first purification chamber 2 and a second purification chamber 3 are provided inside the housing 1, and a switch door 4 is provided at the front end of the first purification chamber 2 and the second purification chamber 3 to open the device for setting. When flue gas dust removal is required, flue gas is introduced through the air inlet pipe 5. The flue gas is filtered through the filter screen 11 and rotated by the air collector plate 6 receiving the flue gas. When the air collector plate 6 rotates, it drives the wheel rod 8 to rotate through the transmission belt 7 at the rear end. When the wheel rod 8 rotates, it drives the push rod 10 to move through the round rod 9 at the front end. As the push rod 10 moves back and forth, the filter screen 11 is limited by the limiting block 12 and the limiting groove 13, and the filter screen 11 is driven by the push rod 10 to enter the air. The filter screen 11 can be adjusted by swaying left and right. Therefore, the filter screen 11 can move with the push rod 10, which can prevent the filter screen 11 from becoming clogged after long-term use when filtering dust in flue gas, thus improving the effectiveness of the device. At the same time, when the device is in use, the dust shaken off by the back and forth movement of the filter screen 11 falls into the bottom of the box 1 along the inclined push block 14. Under the push of the inclined push block 14, the dust enters the interior of the snap-fit ​​collection box 16 through the discharge port 15. The snap-fit ​​collection box 16 is provided with a locking block on the outside, which can lock into the interior of the box 1 and can also be easily removed and installed, providing convenience for the staff and facilitating the use and cleaning of the device.

[0020] Example 2:

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 and Figure 8 The technical solution shown, in order to solve the problem that adding too much flue gas at once can easily lead to poor filtration effect, discloses the following: A connecting channel 22 is installed through the interior of the housing 1, and an intermittent feeding mechanism is provided inside the connecting channel 22. The intermittent feeding mechanism is equipped with rubber sealing sleeves 23, which are fixedly installed at the bottom of the connecting channel 22. The rubber sealing sleeves 23 are sheet-shaped, and there are four rubber sealing sleeves 23, which seal the bottom of the connecting channel 22. A return spring 21 is provided at the lower end of the connecting channel 22, and a lifting plate 19 is provided at the lower end of the return spring 21. A traction rope 17 is fixedly installed at the lower end of the lifting plate 19, and the left side of the traction rope 17 is fixedly installed on the right side of the filter screen plate 11. A guide is attached to the middle end of the traction rope 17. A guide wheel 18 is fixedly installed on the inner wall of the housing 1 on the right side. A top block 20 is installed through the inside of the lifting plate 19, and the top of the top block 20 corresponds to the position of the rubber sealing sleeve 23. The inside of the top block 20 is open, and a second magnet 25 is fixedly installed at the upper end of the top block 20. A first magnet 24 is provided at the lower end of the rubber sealing sleeve 23, and the positions of the first magnet 24 and the second magnet 25 correspond. The magnetic poles of the first magnet 24 and the second magnet 25 are opposite. An air guide pipe 26 is fixedly installed at the upper end of the connecting channel 22, and a water storage tank 27 is installed through the left side of the air guide pipe 26. The lower left end of the air guide pipe 26 is located at the bottom of the water storage tank 27. An air outlet pipe 28 is installed through the left side of the water storage tank 27, and a water inlet 29 is installed through the upper end of the water storage tank 27. The water inlet 29 is a knob type. In this embodiment, dust removal water is added inside the water storage tank 27 through the water inlet 29. During dust removal from the flue gas, the flue gas, after preliminary filtration, enters the air guide pipe 26 through the connecting channel 22. The air guide pipe 26 delivers the gas to the clean water inside the water storage tank 27. As the flue gas rises through the water, the dust is adsorbed by the water, and the clean flue gas is discharged through the air outlet pipe 28, achieving a secondary removal effect and improving the dust removal efficiency in the flue gas. At the same time, when the filter screen 11 moves back and forth, it pulls the traction rope 17. The traction rope 17 is rotated by the guide wheel 18. The lifting plate 19 at the top can be pulled down. When the traction rope 17 is released, the lifting plate 19 rises under the action of the return spring 21, so that the top block 20 passes through the rubber sealing sleeve 23, thereby connecting the connecting channel 22. At the same time, the magnetic poles of the first magnet 24 and the second magnet 25 are opposite, which can expand the opening degree of the rubber sealing sleeve 23 and improve the conveying efficiency. Therefore, it can convey flue gas intermittently, avoiding the poor effect of secondary removal caused by continuous input of flue gas, improving the efficiency of dust removal in flue gas and improving the practicality of the device.

[0022] Example 3:

[0023] like Figure 3 , Figure 4 , Figure 9 and Figure 10 The technical solution shown, in order to solve the problem of inconvenient replacement of filtered water, discloses the following: a water storage tank 27 is fixedly installed on the inner wall of the housing 1, and a first air bladder 30 is provided at the bottom of the water storage tank 27. A receiving plate 31 is fixedly installed at the upper end of the first air bladder 30, and an automatic discharge mechanism is provided on the outer side of the receiving plate 31. The automatic discharge mechanism is provided with a discharge port 34, the front end of which is installed through the rear end of the air guide pipe 26. A sliding groove 33 is opened on the inner wall of the front end of the water storage tank 27, and the receiving plate... A slider 32 is fixedly installed at the front end of 31, and the slider 32 is connected to the slide groove 33 by a sliding connection. Air exchange pipes 35 are installed through the left and right sides of the first airbag 30, and a second airbag 36 is installed through the rear end of the air exchange pipe 35. The lower end of the second airbag 36 is fixedly installed on the outside of the discharge port 34. A lifting sealing plate 37 is fixedly installed on the upper end of the second airbag 36, and the lower end of the lifting sealing plate 37 is nested inside the discharge port 34. The material of the second airbag 36 is elastically set. In this embodiment, after secondary dust filtration, fine particles still remain in the flue gas. As the usage time gradually increases, the impurities inside the flue gas mix with the water flow inside the water storage tank 27. When the water inside the water storage tank 27 is static, the impurities inside settle and accumulate. The impurities accumulate on the surface of the receiving plate 31 along with the static water source. The receiving plate 31 slides along the slide groove 33 under the action of the slider 32. As the impurities accumulate, the receiving plate 31 descends and squeezes the first airbag 30. The first airbag 30 is squeezed and the internal air is exchanged through the air exchanger. The air pipe 35 delivers the wastewater to the second airbag 36. The second airbag 36 inflates and lifts the lifting sealing plate 37, thereby opening the discharge port 34. The discharge port 34 discharges wastewater and impurities together, thus achieving an automatic discharge effect, which is convenient for operators. At the same time, when water is added through the water inlet 29, the receiving plate 31 floats up under the action of buoyancy. Under the elastic force of the second airbag 36, the lifting sealing plate 37 re-seals the discharge port 34, thus achieving an automatic discharge effect, improving the use efficiency of the device, and making it convenient for operators.

[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust removal device for flue gas, comprising a housing (1) and a first purification chamber (2) and a second purification chamber (3) opened inside the housing (1), wherein the front end of the first purification chamber (2) and the second purification chamber (3) is provided with a switch door (4), and an air inlet pipe (5) is installed through the lower left side of the housing (1), and the right side of the air inlet pipe (5) is located inside the first purification chamber (2); Its features are: The air collection plate (6) is rotatably installed inside the box (1), and a preliminary anti-clogging mechanism is provided on the right side of the air collection plate (6), and a filter screen plate (11) is provided on the preliminary anti-clogging mechanism. The filter screen plate (11) is located inside the first purification chamber (2). The box (1) has a connecting channel (22) installed through it, and the connecting channel (22) is provided with an intermittent feeding mechanism. The intermittent feeding mechanism is provided with a rubber sealing sleeve (23). The rubber sealing sleeve (23) is fixedly installed at the bottom of the connecting channel (22). The rubber sealing sleeve (23) is in the shape of a sheet, and there are four rubber sealing sleeves (23). The rubber sealing sleeves (23) seal the bottom of the connecting channel (22). A water storage tank (27) is fixedly installed on the inner wall of the box (1), and a first air bladder (30) is provided at the bottom of the water storage tank (27). A receiving plate (31) is fixedly installed at the upper end of the first air bladder (30), and an automatic discharge mechanism is provided on the outer side of the receiving plate (31). The automatic discharge mechanism is provided with a discharge port (34), and the front end of the discharge port (34) is installed through the rear end of the air guide pipe (26).

2. The dust removal device for flue gas according to claim 1, characterized in that: The inner wall of the box (1) is provided with a limiting groove (13), and the upper and lower ends of the filter screen (11) are fixedly installed with limiting blocks (12), and the limiting blocks (12) and the limiting groove (13) are connected by a sliding connection.

3. The dust removal device for flue gas according to claim 2, characterized in that: The rear end of the air collecting plate (6) is fitted with a transmission belt (7), and the right side of the transmission belt (7) is fitted with a round wheel rod (8). The rear end of the round wheel rod (8) is rotatably mounted on the inner wall of the box (1), and the front end of the round wheel rod (8) is fixedly mounted with a round rod (9). The surface of the round rod (9) is fitted with a push rod (10), and the right side of the push rod (10) is fixedly mounted on the left side of the filter screen plate (11).

4. The dust removal device for flue gas according to claim 3, characterized in that: An inclined pusher (14) is fixedly installed on the outer side of the filter screen (11), and the outer side of the inclined pusher (14) is attached to the inner wall of the box (1). A discharge port (15) is opened at the bottom of the box (1), and a snap-fit ​​collection box (16) is provided below the discharge port (15). A protrusion is provided on the outer side of the snap-fit ​​collection box (16), and the snap-fit ​​collection box (16) is snapped into the bottom of the box (1).

5. The dust removal device for flue gas according to claim 1, characterized in that: The lower end of the connecting channel (22) is provided with a reset spring (21), and the lower end of the reset spring (21) is provided with a lifting plate (19). The lower end of the lifting plate (19) is fixedly installed with a traction rope (17), and the left side of the traction rope (17) is fixedly installed on the right side of the filter screen plate (11). The middle end of the traction rope (17) is fitted with a guide wheel (18), and the right side of the guide wheel (18) is fixedly installed on the inner wall of the box (1).

6. The dust removal device for flue gas according to claim 5, characterized in that: The lifting plate (19) has a top block (20) installed inside, and the top of the top block (20) corresponds to the position of the rubber sealing sleeve (23). The top block (20) is internally connected, and a second magnet (25) is fixedly installed at the upper end of the top block (20). A first magnet (24) is provided at the lower end of the rubber sealing sleeve (23), and the positions of the first magnet (24) and the second magnet (25) correspond. The magnetic poles of the first magnet (24) and the second magnet (25) are opposite.

7. The dust removal device for flue gas according to claim 6, characterized in that: An air duct (26) is fixedly installed at the upper end of the connecting channel (22), and a water storage tank (27) is installed through the left side of the air duct (26), with the lower left end of the air duct (26) located at the bottom of the water storage tank (27).

8. The dust removal device for flue gas according to claim 7, characterized in that: An air outlet pipe (28) is installed through the left side of the water storage tank (27), and an inlet (29) is installed through the upper end of the water storage tank (27), and the inlet (29) is a knob type.

9. The dust removal device for flue gas according to claim 1, characterized in that: The water storage tank (27) has a sliding groove (33) on its front inner wall, and a slider (32) is fixedly installed on the front end of the receiving plate (31), and the slider (32) and the sliding groove (33) are connected by a sliding connection.

10. The dust removal device for flue gas according to claim 9, characterized in that: The first airbag (30) has air exchange pipes (35) installed through its left and right sides, and the second airbag (36) is installed through its rear end. The lower end of the second airbag (36) is fixedly installed on the outside of the discharge port (34). The upper end of the second airbag (36) is fixedly installed with a lifting sealing plate (37), and the lower end of the lifting sealing plate (37) is nested inside the discharge port (34). The material of the second airbag (36) is elastically set.

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