Desulfurization and denitration filtering device

Abstract

The present application relates to a kind of desulfurization and denitrification filter devices, belong to desulfurization and denitrification technical field.The filter tower is communicated with the air inlet in the bottom end of one side, the ceramic fiber filter tube is communicated with the top end of another side of the filter tower, the bottom end center of the filter tower is communicated with the ash outlet, and the discharge valve is installed in the inside of the ash outlet;Desulfurization component is arranged in the side of the air inlet, and the sulfur element in flue gas is removed;Separation component is arranged in the upper end of the desulfurization component, and the dust impurities in flue gas are separated;Denitration component is arranged in the outside top end of the separation component.The present application is twisted into high-speed rotating airflow by spiral guide vane, and coarse particle dust is quickly thrown to tower wall using centrifugal force, solves the pain point that existing equipment is low in removal efficiency to microfine dust, realizes the efficient removal of dust full particle size section.

Description

Technical Field

[0001] This invention relates to the field of desulfurization and denitrification technology, and in particular to a desulfurization and denitrification filtration device. Background Technology

[0002] The desulfurization and denitrification filtration device is an industrial flue gas purification device that integrates multiple technologies such as physical filtration, chemical absorption, and catalytic reduction. Its core function is to simultaneously remove pollutants such as sulfur oxides, nitrogen oxides, and dust from flue gas within a single device, thereby achieving synergistic treatment of multiple pollutants.

[0003] Most desulfurization and denitrification devices on the market currently adopt a spray structure, which sprays desulfurizing agents into the flue gas through nozzles to achieve gas-liquid reaction desulfurization. However, industrial flue gas is characterized by high temperature and high dust content. Desulfurizing agents are prone to crystallization at the nozzle, and dust in the flue gas is prone to adhere to the nozzle surface, causing frequent nozzle blockage. This not only requires manual disassembly and cleaning at regular intervals, increasing the workload and cost of operation and maintenance, but also reduces desulfurization efficiency due to spray interruption. At the same time, dust is prone to accumulate and caking on the guide plate and inner wall of the tower. Long-term operation will narrow the flue gas flow channel, increase the operating resistance of the equipment, and affect the overall processing capacity. Furthermore, the droplets formed by denitrification reducing agents such as ammonia after being sprayed out of the nozzle have a large particle size and a small contact surface area with the flue gas, resulting in insufficient gas-liquid reaction and limited denitrification efficiency. In addition, the denitrification reaction zone of traditional devices does not have an effective enhanced mixing structure, resulting in a short residence time of flue gas in the reaction zone. The reaction between nitrogen oxides and reducing agents is incomplete, which can easily lead to ammonia escape and secondary pollution.

[0004] Therefore, this application provides a desulfurization and denitrification filtration device to meet the requirements. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a desulfurization and denitrification filtration device to solve the problems that dust in flue gas easily adheres to the nozzle surface, causing frequent nozzle blockage, dust easily accumulates and hardens on the guide plate and inner wall of the tower, flue gas has a short residence time in the reaction zone, nitrogen oxides and reducing agents do not react completely, and ammonia escape is easy to occur.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A desulfurization and denitrification filtration device includes a filter tower. An air inlet is connected to the bottom of one side of the filter tower, and a ceramic fiber filter tube is connected to the top of the other side of the filter tower. An ash discharge port is connected to the center of the bottom of the filter tower, and a discharge valve is installed inside the ash discharge port. A desulfurization component is installed on one side of the air inlet, which is used to remove sulfur from the flue gas. A separation component is installed at the upper end of the desulfurization component, which is used to separate dust impurities from the flue gas. A desulfurization valve is installed at the top outer side of the separation component. The denitrification component is used to remove nitrogen from the flue gas; an isolation component is provided on the outside of the separation component to isolate the flue gas that has not spiraled upward; the desulfurization component includes a feed pipe that is connected to the inside of the filter tower, a feed valve is installed inside the feed pipe, and several guide pipes are connected to the other end of the feed pipe. The several guide pipes are interconnected, and several first nozzles are connected to the bottom end of each guide pipe. An isolation frame is fixedly connected to the outside of the bottom end of each first nozzle.

[0007] Optionally, the desulfurization assembly further includes several annular air slits, which are respectively opened on the inner side of the bottom end of the isolation frame. A first air guide pipe is connected between the several isolation frames, and a first valve is installed inside the other end of the first air guide pipe.

[0008] Optionally, the separation assembly includes a spiral guide plate, which is fixedly connected to the inner wall of the top of the filter tower, and spiral vibrating plates are fixedly connected to both the inner and outer sides of the back of the spiral guide plate.

[0009] Optionally, the separation assembly further includes two ultrasonic transducers, which are respectively installed at one end of the helical vibrating plate and respectively fixedly connected to the outer wall of the helical vibrating plate.

[0010] Optionally, the separation assembly further includes a plurality of first waveguide rods, which are respectively fixedly connected to the bottom end of the outer helical vibration plate. The plurality of first waveguide rods are arranged in a helical array at the bottom end of the outer helical vibration plate. The other end of each of the plurality of first waveguide rods is threadedly connected to a first vibrating plate. The plurality of first vibrating plates are respectively attached to the inner wall of the filter tower.

[0011] Optionally, the denitrification assembly includes an inlet pipe that is connected to the interior of the filter tower. An inlet valve is installed inside the inlet pipe. A spiral tube is fixedly connected to the outer top of the spiral guide plate, and the spiral tube is connected to the inlet pipe.

[0012] Optionally, the denitrification assembly further includes a plurality of second nozzles, which are respectively connected to the interior of the spiral tube. Each second nozzle has a second waveguide rod on one side, and each second waveguide rod is fixedly connected to the outer spiral vibrating plate.

[0013] Optionally, the denitrification assembly further includes a plurality of annular diaphragms, which are threadedly connected to the other end of the second waveguide rod. Each annular diaphragm is in contact with the nozzle of the second nozzle. A plurality of third diaphragms are fixedly connected to the inner side of each annular diaphragm, and each third diaphragm is in contact with the nozzle of the second nozzle.

[0014] Optionally, the isolation assembly includes a second air guide pipe connected to the inside of the filter tower, a spiral air slit is provided on the outer side of the spiral guide plate, the spiral air slit is connected to the second air guide pipe, and a second valve is installed inside the second air guide pipe.

[0015] Optionally, the isolation assembly further includes an air inlet pipe connected to the other end of the second air guide pipe and connected to the other end of the first air guide pipe, and an air inlet valve is installed inside the air inlet pipe.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects: In the above scheme, the flue gas is twisted into a high-speed rotating airflow by the spiral guide plate, and the centrifugal force is used to quickly throw the coarse dust particles toward the tower wall, achieving efficient preliminary separation of coarse dust. On the other hand, the spiral ultrasonic field formed by the spiral vibrating plate and the spiral guide plate causes the fine dust in the flue gas to move relative to each other and collide and agglomerate into large particles under the action of the sound field, making them easier to be separated by centrifugal force. This solves the pain point of low efficiency in removing fine dust in existing equipment and achieves efficient removal of dust across the entire particle size range. At the same time, high-frequency vibration can prevent dust from accumulating and caking on the surface of the spiral guide plate, avoid narrowing of the flue gas flow channel, and ensure stable ventilation resistance during long-term operation of the equipment. Moreover, the vibration energy is transmitted to the inner wall of the filter tower through the first wave guide rod and the first vibrating plate, making the dust, ammonium salts, etc. on the tower wall loosen and fall smoothly into the ash hopper, realizing automated dust removal, replacing traditional manual dust removal, further reducing operation and maintenance costs. Furthermore, the spiral channel formed by the spiral guide plate extends the residence time of the flue gas in the equipment, providing sufficient contact time for the subsequent denitrification reaction.

[0017] The air curtain formed by the gas ejected through the annular air gap effectively isolates the high-temperature dusty flue gas from the nozzles, reducing the contact between desulfurization agent crystals and flue gas dust and the nozzles. At the same time, the continuous airflow avoids the accumulation of crystals and dust at the nozzle opening, completely solving the problem of frequent clogging of existing spray desulfurization components. It eliminates the need for frequent manual disassembly and cleaning, reducing maintenance workload, and ensuring that the nozzles are always in a smooth spraying state. The desulfurization agent can be sprayed evenly and stably into the flue gas, ensuring full gas-liquid mixing and reaction, greatly improving the sulfur removal efficiency, while ensuring continuous and uninterrupted operation of the equipment, improving the operational efficiency of industrial production.

[0018] The high-frequency vibration energy of the spiral vibrating plate is transmitted to the nozzle through the linkage of the second waveguide rod, the annular vibrator, the third vibrator and the spiral vibrating plate. This causes the nozzle to vibrate while spraying ammonia water, thus preventing the ammonium salts and flue gas dust generated by the ammonia water reaction from crystallizing and clogging the nozzle orifice. This ensures the stable delivery and spraying of the denitrification reducing agent. At the same time, the vibration energy of the nozzle further breaks the ammonia water droplets into ultrasonic droplets, which greatly increases the contact surface area between the ammonia water and the flue gas. This allows the reduction reaction of nitrogen oxides and ammonia water to be more complete, significantly improving the denitrification efficiency. This reduces the amount of unreacted ammonia water discharged with the flue gas, reduces ammonia escape, and avoids secondary pollution.

[0019] The spiral air curtain wall formed by the spiral air gap and the second air guide pipe effectively seals the gap between the spiral guide plate and the tower body, completely avoiding the short circuit caused by the straight rise of flue gas. It forces all flue gas to form a rotating airflow through the spiral guide plate, ensuring the effective implementation of each link such as centrifugal separation, ultrasonic enhancement, desulfurization and denitrification reaction. It solves the problems of incomplete dust removal and insufficient reaction caused by flue gas short circuit in existing equipment. Attached Figure Description

[0020] Figure 1 A frontal three-dimensional structural diagram of a desulfurization and denitrification filtration device; Figure 2 A frontal cross-sectional three-dimensional structural diagram of a desulfurization and denitrification filtration device; Figure 3 This is a schematic diagram of the three-dimensional structure of the desulfurization component; Figure 4 This is a schematic diagram of the three-dimensional structure of a desulfurization component. Figure 5 A three-dimensional structural diagram of the desulfurization component, separation component, and isolation component; Figure 6 This is a schematic diagram of the three-dimensional structure of the separated components; Figure 7 A schematic diagram of the unfolded three-dimensional structure of the separated components; Figure 8 This is a schematic diagram of the three-dimensional structure of the denitrification component; Figure 9 This is a schematic diagram of the three-dimensional structure of the denitrification component. Figure 10 This is a schematic diagram of the three-dimensional structure of the isolation component. Figure 11 for Figure 3 Enlarged schematic diagram of the structure at point A in the diagram.

[0021] Figure label: 1. Filter tower; 2. Air inlet; 3. Ceramic fiber filter tube; 4. Desulfurization assembly; 401. Feed pipe; 402. Feed valve; 403. Feed guide pipe; 404. Isolation frame; 405. Annular air gap; 406. First air guide pipe; 407. First valve; 408. First nozzle; 5. Separation assembly; 501. Spiral guide plate; 502. Spiral vibrating plate; 503. Ultrasonic transducer; 504. First wave... 505. Guide rod; 6. First vibrating plate; 7. Denitrification assembly; 8. Liquid inlet pipe; 9. Liquid inlet valve; 10. Spiral tube; 11. Second nozzle; 12. Second waveguide rod; 13. Annular vibrating plate; 14. Third vibrating plate; 15. Isolation assembly; 16. Second air guide pipe; 17. Spiral air gap; 18. Second valve; 19. Air inlet pipe; 10. Air inlet valve; 11. Ash discharge port; 12. Discharge valve. Detailed Implementation

[0022] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0023] like Figures 1 to 11As shown, an embodiment of the present invention provides a desulfurization and denitrification filtration device, including a filter tower 1. An air inlet 2 is connected to the bottom of one side of the filter tower 1, and a ceramic fiber filter tube 3 is connected to the top of the other side of the filter tower 1. The ceramic fiber filter tube 3 re-filters the purified flue gas, improving the filtration efficiency of the device. An ash discharge port 8 is connected to the center of the bottom of the filter tower 1, discharging dust and impurities that fall into the bottom of the filter tower 1 to reduce residue. A discharge valve 9 is installed inside the ash discharge port 8. A desulfurization component 4 is provided on one side of the air inlet 2, used to remove sulfur from the flue gas. A separation component 5 is provided at the upper end of the desulfurization component 4, used to separate dust and impurities from the flue gas. A denitrification component 6 is provided at the top of the outer side of the separation component 5, used to remove nitrogen from the flue gas. An isolation component 7 is provided outside the separation component 5, used to isolate flue gas that has not spiraled upwards. The desulfurization component 4 includes an air inlet 2, a denitrification component 3, a denitrification component 4, a denitrification component 5, a denitrification component 6 ... a denitrification component 6, used to remove nitrogen from the flue gas. An isolation component 7 is provided outside the separation component 5, used to isolate flue gas that has not spiraled upwards. Feed pipe 401 is connected to the inside of filter tower 1. Feed valve 402 is installed inside feed pipe 401. The other end of feed pipe 401 is connected to several guide pipes 403, which are interconnected. The bottom end of each guide pipe 403 is connected to several first nozzles 408. The bottom end of each first nozzle 408 is fixedly connected to an isolation frame 404. Desulfurization component 4 also includes several annular air slits 405, which are connected to the first nozzles 408. The nozzle of a nozzle 408 is flush with the nozzle height. The air curtain formed by the annular air slit 405 separates the nozzle from the high-temperature dusty flue gas, reducing the contact between crystals and dust and the nozzle. The continuous airflow washes the nozzle surface to prevent the desulfurization agent from crystallizing or dust from accumulating at the nozzle opening. Several annular air slits 405 are respectively opened on the inner side of the bottom end of the isolation frame 404. The several isolation frames 404 are connected by a first air guide pipe 406. A first valve 407 is installed inside the other end of the first air guide pipe 406.

[0024] like Figures 2 to 10As shown, the separation assembly 5 includes a spiral guide plate 501, which is fixedly connected to the inner wall of the top of the filter tower 1. Spiral vibrating plates 502 are fixedly connected to both the inner and outer sides of the back of the spiral guide plate 501. The separation assembly 5 also includes two ultrasonic transducers 503, which are respectively installed at one end of the spiral vibrating plate 502 and fixedly connected to the outer wall of the spiral vibrating plate 502. The separation assembly 5 also includes several first waveguide rods 504, which are threadedly connected to the first vibrating plate 505. A spherical washer is installed at the location to accommodate the slight deformation of the inner wall of the filter tower 1 during vibration. Several first waveguide rods 504 are fixedly connected to the bottom end of the outer spiral vibrating plate 502. Several first waveguide rods 504 are spirally arrayed at the bottom end of the outer spiral vibrating plate 502. The other end of several first waveguide rods 504 is threadedly connected to a first vibrating plate 505. Several first vibrating plates 505 are respectively attached to the inner wall of the filter tower 1. The first vibrating plates 505 are bonded and fixed to the inner wall of the filter tower 1 with a high-temperature resistant adhesive to facilitate the transmission of vibration energy to the inner wall of the filter tower 1.

[0025] like Figures 5 to 9 As shown, the denitrification assembly 6 includes an inlet pipe 601, which is connected to the interior of the filter tower 1. An inlet valve 602 is installed inside the inlet pipe 601. A spiral tube 603 is fixedly connected to the outer top of the spiral guide plate 501, and the spiral tube 603 is connected to the inlet pipe 601. The denitrification assembly 6 also includes several second nozzles 604, which are respectively connected to the interior of the spiral tube 603. A second waveguide rod 605 is provided on one side of each second nozzle 604, and each second waveguide rod 605 is fixedly connected to the outer spiral vibrating plate 502. The denitrification assembly 6 also includes several annular vibrating plates 606. The annular diaphragms 606 are threaded to the other end of the second waveguide rod 605. Each annular diaphragm 606 is in contact with the nozzle of the second nozzle 604. Several third diaphragms 607 are fixedly connected to the inner side of each annular diaphragm 606. Each third diaphragm 607 is in contact with the nozzle of the second nozzle 604. The annular diaphragms 606 and the third diaphragms 607 are bonded together with adhesive to facilitate bonding the annular diaphragms 606 and the third diaphragms 607 to the nozzle of the second nozzle 604. At the same time, the annular diaphragms 606 and the third diaphragms 607 are elastically pre-tightened to the nozzle of the second nozzle 604 to improve the bonding performance.

[0026] like Figures 5 to 10As shown, the isolation assembly 7 includes a second air guide pipe 701, which is connected to the interior of the filter tower 1. A spiral air slit 702 is provided on the outer side of the spiral guide plate 501. There is a small gap between the spiral air slit 702 and the filter tower 1. The small deformation caused by high temperature expansion is also facilitated by the spiral air curtain wall contacting the inner wall of the filter tower 1 to form an air seal. The spiral air slit 702 is connected to the second air guide pipe 701. A second valve 703 is installed inside the second air guide pipe 701. The isolation assembly 7 also includes an air inlet pipe 704, which is connected to the other end of the second air guide pipe 701. The air inlet pipe 704 is connected to the other end of the first air guide pipe 406. An air inlet valve 705 is installed inside the air inlet pipe 704.

[0027] The working principle of the technical solution provided by this invention is as follows: During operation, flue gas enters the filter tower 1 through inlet 2. At this time, inlet pipe 704 is connected to gas pipe, and inlet valve 705 and first valve 407 are opened simultaneously, allowing gas inside the gas pipe to enter inlet pipe 704. The gas is then guided through inlet pipe 704 to first guide pipe 406, and then through first guide pipe 406 to annular gas slit 405. The gas is then sprayed out through annular gas slit 405 to form an air curtain and isolate and protect the nozzle part of first nozzle 408. At the same time, desulfurization agent pipe is connected to feed pipe 401, and feed valve 402 is opened, allowing desulfurization agent to enter the interior through feed pipe 401. The desulfurization agent is then guided through guide pipe 403 to first nozzle 408, and then sprayed out through first nozzle 408, allowing the desulfurization agent to mix and react with the flue gas.

[0028] Furthermore, after the reaction is complete, the flue gas continues to rise and enters the spiral guide plate 501. At the same time, the second valve 703 is opened, causing the gas inside the inlet pipe 704 to be diverted into the second guide pipe 701. The gas is then guided into the interior through the second guide pipe 701 and sprayed onto the inner wall of the filter tower 1 through the spiral air gap 702 to form a spiral air curtain. This seals the gap between the spiral guide plate 501 and the filter tower 1, preventing the flue gas from rising in a straight line. After the flue gas enters the spiral guide plate 501, it is twisted into a high-speed rotating airflow. The centrifugal force generated by the high-speed rotating airflow during the rotation throws the dust particles in the flue gas toward the surrounding tower wall, achieving the initial separation of coarse dust particles. At the same time, the spiral channel prolongs the residence time of the flue gas in the reaction zone.

[0029] In addition, the ammonia water pipeline is connected to the inlet pipe 601, and the inlet valve 602 is opened to allow the ammonia water to enter the inlet pipe 601. The ammonia water is then introduced into the spiral tube 603 through the inlet pipe 601, and then introduced into the second nozzle 604 through the spiral tube 603. Finally, the ammonia water is sprayed out through the second nozzle 604 and reacts with the flue gas.

[0030] In addition, when the flue gas enters the spiral guide plate 501, the ultrasonic generator is connected to the ultrasonic transducer 503. The ultrasonic transducer 503 converts the high-frequency electrical signal of the ultrasonic generator into high-frequency vibration, and then transmits the high-frequency vibration to the spiral vibrating plate 502. The spiral vibrating plate 502 transmits the high-frequency vibration to the spiral guide plate 501 and forms a spiral ultrasonic field. At this time, the fine dust in the flue gas generates relative motion in the sound field, collides and agglomerates into large particles, which are more easily separated by centrifugal force. At the same time, the high-frequency vibration prevents the dust from accumulating and caking on the surface of the spiral guide plate 501. Meanwhile, the acoustic flow effect enhances gas-solid mixing and promotes the reaction between flue gas and ammonia water.

[0031] Furthermore, when the spiral vibrating plate 502 vibrates, the outer spiral vibrating plate 502 transmits the vibration energy to the second waveguide rod 605, which in turn transmits the vibration energy to the annular vibrator 606, which in turn transmits the vibration energy to the third vibrator 607. The annular vibrator 606 and the third vibrator 607 then transmit the vibration energy to the nozzle of the second nozzle 604, causing the nozzle of the second nozzle 604 to vibrate while spraying ammonia water. This prevents the nozzle from clogging due to crystallization at the source. At the same time, the vibration energy generated by the nozzle of the second nozzle 604 further breaks the ammonia water droplets into ultrasonic droplets, thereby increasing the reaction surface area and improving the denitrification efficiency.

[0032] Furthermore, when the spiral vibrating plate 502 vibrates, the outer side transmits the vibration energy to the first waveguide rod 504, and then the first waveguide rod 504 transmits the vibration energy to the first vibrating plate 505, and then the first vibrating plate 505 transmits the vibration energy to the inner wall of the filter tower 1, causing the inner wall of the filter tower 1 to vibrate at high frequency. This causes the dust and ammonium salts thrown towards the inner wall of the filter tower 1 to become loose during the vibration process, and at the same time helps the dust thrown towards the inner wall by centrifugal force to slide smoothly into the bottom ash hopper.

[0033] In addition, when the purified flue gas moves to the top of the filter tower 1 and is further filtered through the ceramic fiber filter tube 3, the discharge valve 9 is opened to allow the dust and impurities at the bottom of the filter tower 1 to be discharged through the ash discharge port 8.

[0034] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A desulfurization and denitrification filtration device, characterized in that, The filter tower (1) is connected to an air inlet (2) at one bottom and to a ceramic fiber filter tube (3) at the other top. The filter tower (1) is connected to an ash discharge port (8) at the bottom center and a discharge valve (9) is installed inside the ash discharge port (8). A desulfurization component (4) is provided on one side of the air inlet (2), and the desulfurization component (4) is used to remove sulfur from the flue gas. The upper end of the desulfurization component (4) is provided with a separation component (5), which is used to separate dust impurities in the flue gas. The outer top of the separation component (5) is provided with a denitrification component (6), which is used to remove nitrogen from the flue gas; An isolation component (7) is provided on the outside of the separation component (5), and the isolation component (7) is used to isolate the flue gas that has not spiraled upward. The desulfurization component (4) includes a feed pipe (401), which is connected to the inside of the filter tower (1). A feed valve (402) is installed inside the feed pipe (401). The other end of the feed pipe (401) is connected to several guide pipes (403), which are interconnected. The bottom end of each guide pipe (403) is connected to several first nozzles (408), and an isolation frame (404) is fixedly connected to the outside of the bottom end of each first nozzle (408).

2. The desulfurization and denitrification filtration device according to claim 1, characterized in that, The desulfurization component (4) also includes several annular air slits (405), which are respectively opened on the inner side of the bottom end of the isolation frame (404). A first air guide pipe (406) is connected between the several isolation frames (404), and a first valve (407) is installed inside the other end of the first air guide pipe (406).

3. The desulfurization and denitrification filtration device according to claim 2, characterized in that, The separation component (5) includes a spiral guide plate (501), which is fixedly connected to the inner wall of the top of the filter tower (1). Spiral vibrating plates (502) are fixedly connected to the inner and outer sides of the back of the spiral guide plate (501).

4. The desulfurization and denitrification filtration device according to claim 3, characterized in that, The separation component (5) also includes two ultrasonic transducers (503), which are respectively installed at one end of the spiral vibrating plate (502) and are respectively fixedly connected to the outer wall of the spiral vibrating plate (502).

5. The desulfurization and denitrification filtration device according to claim 4, characterized in that, The separation component (5) also includes a plurality of first waveguide rods (504), which are fixedly connected to the bottom end of the outer spiral vibrating plate (502). The plurality of first waveguide rods (504) are spirally arrayed at the bottom end of the outer spiral vibrating plate (502). The other end of the plurality of first waveguide rods (504) is threadedly connected to a first vibrating plate (505). The plurality of first vibrating plates (505) are respectively attached to the inner wall of the filter tower (1).

6. The desulfurization and denitrification filtration device according to claim 5, characterized in that, The denitrification assembly (6) includes an inlet pipe (601) which is connected to the inside of the filter tower (1). An inlet valve (602) is installed inside the inlet pipe (601). A spiral tube (603) is fixedly connected to the top of the outer side of the spiral guide plate (501). The spiral tube (603) is connected to the inlet pipe (601).

7. The desulfurization and denitrification filtration device according to claim 6, characterized in that, The denitrification assembly (6) also includes a plurality of second nozzles (604), which are respectively connected to the interior of the spiral tube (603). Each second nozzle (604) has a second waveguide rod (605) on one side, and each second waveguide rod (605) is fixedly connected to the outer spiral vibrating plate (502).

8. The desulfurization and denitrification filtration device according to claim 7, characterized in that, The denitrification assembly (6) also includes a plurality of annular diaphragms (606), which are threadedly connected to the other end of the second waveguide rod (605). Each annular diaphragm (606) is in contact with the nozzle of the second nozzle (604). A plurality of third diaphragms (607) are fixedly connected to the inner side of each annular diaphragm (606), and each third diaphragm (607) is in contact with the nozzle of the second nozzle (604).

9. The desulfurization and denitrification filtration device according to claim 3, characterized in that, The isolation assembly (7) includes a second air guide pipe (701), which is connected to the interior of the filter tower (1). A spiral air slit (702) is provided on the outer side of the spiral guide plate (501), which is connected to the second air guide pipe (701). A second valve (703) is installed inside the second air guide pipe (701).

10. The desulfurization and denitrification filtration device according to claim 9, characterized in that, The isolation assembly (7) also includes an air inlet pipe (704), which is connected to the other end of the second air guide pipe (701). The air inlet pipe (704) is connected to the other end of the first air guide pipe (406). An air inlet valve (705) is installed inside the air inlet pipe (704).

Images