Desulfurization and denitrification device based on magnetic suspension fan

Abstract

The invention relates to the technical field of desulfurization and denitrification, and discloses a desulfurization and denitrification device based on a magnetic suspension fan, the desulfurization and denitrification device comprises a desulfurization tower body and a denitrification tower body, flue gas is introduced into the desulfurization tower body for desulfurization, and after desulfurization, the flue gas is introduced into the denitrification tower body; a plurality of groups of dispersing pieces are arranged inside the desulfurization tower body, flue gas is introduced from the bottom of the desulfurization tower body and passes through the plurality of groups of dispersing pieces, and meanwhile, the flue gas is subjected to spraying desulfurization treatment inside the desulfurization tower body. Flue gas rising in the tower body can be dispersed through the multiple groups of dispersing pieces, and meanwhile, the spraying nozzles which are different in angle and cross in covering are matched, so that the flue gas is completely covered, and meanwhile, the corresponding cleaning effect on the dispersing pieces, the filter screen and other structures can be achieved; the smoke inlet position of the mounting piece and the filter screen are scraped and cleaned while the smoke is centrifugally distributed and stirred; and a plurality of nozzles of the spray head can be cleaned along with a transmission structure, so that dust in the flue gas is prevented from being attached to the structures, and continuous desulfurization and denitrification operation is not influenced.

Description

Technical Field

[0001] The invention relates to the technical field of desulfurization and denitrification, and in particular to a desulfurization and denitrification device based on a magnetic suspension fan. Background Art

[0002] The steel industry produces a large amount of sintering flue gas during the production process, which contains a large amount of SO2, SO3, NO X Pollutants are a major source of air pollution and must be treated with desulfurization and denitrification before they can be discharged. The commonly used desulfurization process for flue gas desulfurization is gypsum wet flue gas desulfurization. The main principle is to use limestone and water to mix to make an absorption liquid, and use the absorption tower to react the sulfur dioxide in the flue gas with the calcium carbonate in the absorption liquid to produce substances such as calcium sulfite, and then send it into the air through the desulfurization blower for oxidation reaction, and finally form calcium sulfate, which is gypsum. This process can not only effectively remove sulfur dioxide from the exhaust gas and prevent environmental pollution, but also produce gypsum, a byproduct with economic value. Through the gypsum wet flue gas desulfurization process, not only can environmental protection and waste gas treatment be achieved, but also the byproduct gypsum can be fully utilized to provide raw materials for other industries, realize the recycling of resources, and achieve a win-win situation of economic and environmental benefits. Since a large air flow is required in the flue gas desulfurization process to meet the oxidation needs of the desulfurization process, certain requirements are placed on the fans used. Ordinary centrifugal fans use traditional ball bearings, which operate through rolling friction of the bearings and are connected to the motor main shaft through a coupling. They have poor flow regulation performance, low efficiency, high energy consumption, and require lubrication. They have high operating costs and are prone to mutual interference and surge when multiple machines are operated in parallel. Therefore, magnetic levitation oxidation fans are a better choice in the process of desulfurization and denitrification.

[0003] The prior art discloses a sintering flue gas desulfurization and denitrification device (Announcement No. CN110585874B). The invention filters the flue gas by setting an inclined plate filter assembly, and uses the filter inclined plate as a carrier of the absorption liquid, which can greatly increase the contact probability and contact time between the flue gas and the absorption liquid, ensure that the absorption liquid fully absorbs the sulfur-containing substances in the flue gas, and improve the desulfurization effect. However, the scheme still has the following technical problems in actual use:

[0004] This scheme uses droplets to disperse the desulfurization liquid to achieve sufficient flue gas desulfurization. However, the droplets cannot guarantee sufficient contact with the flue gas, especially the solid fine ash in the flue gas will adhere to the surface of the droplets, thereby affecting the desulfurization effect; at the same time, the flue gas that needs to be desulfurized and denitrified generally contains more solid ash, which will adhere to the liquid distribution tank and other structures in this scheme after accumulation, thereby affecting the treatment effect of the desulfurization liquid. Summary of the invention

[0005] The purpose of the present invention is to provide a technical solution, which distributes the desulfurization liquid in the form of a spray and uses nozzles with different angles but cross coverage. While completely covering the tower, it can also clean the internal structure of the tower to solve the problems in the prior art raised in the above background technology.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A desulfurization and denitrification device based on a magnetic suspension fan, comprising:

[0008] A desulfurization tower body and a denitrification tower body, the flue gas is passed into the desulfurization tower body for desulfurization, and after desulfurization is completed, it is passed into the denitrification tower body, and the outside of the desulfurization tower body is installed with a liquid inlet pipeline and multiple groups of spray pipelines;

[0009] The desulfurization tower body is provided with multiple groups of dispersion parts, the dispersion parts include dispersion rotating parts and mounting parts, the mounting parts are installed inside the desulfurization tower body, the mounting parts separate the desulfurization tower body, the dispersion rotating parts are rotatably installed on the upper part of the mounting parts, the flue gas enters from the bottom of the desulfurization tower body and passes through the multiple groups of dispersion parts, and the flue gas is sprayed and desulfurized inside the desulfurization tower body;

[0010] The dispersion rotating part is equipped with a rotating shaft for rotating itself, and two groups of dispersion ports are arranged on the dispersion rotating part. The flue gas enters from the bottom of the mounting part and is sprayed out from the two groups of rotating dispersion ports. A spray head is arranged inside the desulfurization tower body, and the spray head sprays water mist to cover the flue gas. An internal scraper is installed on the rotating shaft, and the internal scraper rotates and scrapes the flue gas entry point at the bottom of the mounting part. Multiple groups of spray heads are set to different spraying angles and rotate synchronously to fully cover the flue gas.

[0011] Preferably, a filter is provided at the bottom of the dispersion element, and the filter performs preliminary filtration on the flue gas entering the dispersion element. A filter scraper is installed on the rotating shaft, and the filter scraper rotates with the rotating shaft to scrape the upper and lower surfaces of the filter. A cleaning nozzle is provided inside the desulfurization tower body to flush the surface of the filter.

[0012] Preferably, the spray heads are configured as multiple groups of fan-shaped spray nozzles, which rotate in a direction deviating from their own axes to obtain a larger spray coverage range, and the spray angles of the multiple groups of spray heads are cross-arranged to fully cover the smoke ejected from the two groups of dispersion ports.

[0013] Preferably, a first nozzle is provided at the end of the spray head, and multiple groups of second nozzles are provided on the side of the end of the spray head. A rotatable passive driving wheel is rotatably mounted on the first nozzle, a connecting piece is connected to the passive driving wheel, and a cleaning piece is provided at the end of the connecting piece. The cleaning piece cleans the multiple groups of second nozzles following the rotation of the passive driving wheel.

[0014] Preferably, an active driving wheel is installed on the rotating shaft, and the active driving wheel meshes with the passive driving wheel to drive it; the spray heads are distributed in a circular array and are arranged at different heights, and the active driving wheel is provided in multiple groups to drive multiple groups of spray heads at different heights.

[0015] Preferably, one group of the multiple groups of spray heads is arranged corresponding to the two groups of dispersion ports of the dispersion rotating member, and the group of spray heads covers the flue gas and flushes the two groups of dispersion ports at the same time.

[0016] Preferably, the mounting member is configured to be in a conical shape to increase the flow rate of the smoke, and a connecting rotating member is provided on the top of the mounting member, and the dispersing rotating member is rotatably mounted on the top of the mounting member via the connecting rotating member.

[0017] Preferably, the two groups of dispersion ports are respectively a first dispersion port and a second dispersion port, the first dispersion port is arranged in multiple groups and distributed on the side of the dispersion rotating member, the second dispersion port is arranged in multiple groups and distributed on the top surface of the dispersion rotating member, when the smoke is ejected from the first dispersion port and the second dispersion port of the dispersion rotating member, the rotation of the dispersion rotating member generates a stirring and centrifugal effect on the smoke to achieve uniform dispersion of the smoke.

[0018] Preferably, the outside of the desulfurization tower body and the denitrification tower body are provided with a liquid inlet pipe and multiple groups of spray pipes, the liquid inlet pipe is connected to the multiple groups of spray pipes to supply liquid to the spray head and the cleaning nozzle, and the spray pipe is installed with a rotating joint with an inclined angle on the inner side of the denitrification tower body to realize the installation of the spray head at different angles of rotation; the liquid inlet pipe is provided with a control valve to switch between the use of desulfurization spray liquid and tap water.

[0019] Preferably, the desulfurization tower body and the denitrification tower body are connected by a connecting pipe, and the flue gas after desulfurization is passed into the denitrification tower body through the connecting pipe. The bottoms of the desulfurization tower body and the denitrification tower body are both provided with air inlets and are transported by magnetic levitation oxidation fans; the sides of the desulfurization tower body and the denitrification tower body are provided with reserved pipe openings and flue gas inlet pipes, the reserved pipe openings are provided in multiple groups and are arranged corresponding to the dispersion components, and the flue gas inlet pipe is arranged at the bottom of the side of the tower body.

[0020] Technical effects and advantages of the present invention: Compared with the prior art, the desulfurization and denitrification device based on the magnetic suspension fan proposed by the present invention has the following advantages:

[0021] The present invention can disperse the flue gas rising from the inside of the tower body through multiple groups of dispersion parts, and at the same time cooperate with spray nozzles with different angles but cross coverage to fully cover the flue gas and also have a corresponding cleaning effect on structures such as the dispersion parts and the filter screen; the rotating shaft drives multiple components to rotate while the flue gas is desulfurized, so that the flue gas is centrifugally distributed and stirred while the smoke inlet position of the mounting part and the filter screen are scraped and cleaned; the follower transmission structure can also clean the multiple nozzles of the nozzle to prevent dust in the flue gas from adhering to these structures and thus affecting the continuous desulfurization and denitrification operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the desulfurization and denitration device of the present invention;

[0023] Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 3 This is one of the schematic diagrams of the internal structure of the desulfurization tower body of the present invention;

[0025] Figure 4 This is the second schematic diagram of the internal structure of the desulfurization tower body of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of gas dispersion inside the desulfurization tower body of the present invention;

[0027] Figure 6 It is a schematic diagram of the structures such as the dispersed rotating parts and the mounting parts in the present invention;

[0028] Figure 7 It is a structural schematic diagram of the installation method of the dispersed rotating member and the installation member in the present invention;

[0029] Figure 8 It is a schematic diagram of the structure of the shower head in the present invention.

[0030] In the figure:

[0031] 11. Desulfurization tower body; 12. Denitrification tower body; 13. Connecting pipes; 14. Magnetic suspension oxidation fan; 15. Liquid inlet pipe; 16. Spray pipe; 17. Reserved pipe opening; 18. Flue gas inlet pipe; 19. Air inlet; 110. Dispersion plate;

[0032] 21. Dispersing member; 22. Dispersing rotating member; 23. Mounting member; 24. First dispersing port; 25. Second dispersing port; 26. Sprinkler head; 261. First nozzle; 262. Second nozzle; 27. Rotating shaft; 28. Filter; 29. ​​Filter scraper; 210. Internal scraper; 211. Mounting bracket; 212. Active driving wheel; 213. Rotating joint; 214. Passive driving wheel; 215. Connecting rotating member; 216. Connecting member; 217. Cleaning member; 218. Cleaning nozzle. DETAILED DESCRIPTION

[0033] The subject matter described herein will now be discussed with reference to example implementations. It should be understood that the discussion of these implementations is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Various examples may omit, replace, or add various processes or components as needed. In addition, the features described in some examples may also be combined in other examples.

[0034] The invention provides Figures 1 to 4 As shown, a desulfurization and denitrification device based on a magnetic suspension fan comprises:

[0035] A desulfurization tower body 11 and a denitration tower body 12. The flue gas is passed into the desulfurization tower body 11 for desulfurization, and then passed into the denitration tower body 12 after desulfurization. A liquid inlet pipe 15 and a plurality of spray pipes 16 are installed outside the desulfurization tower body 11.

[0036] The desulfurization tower body 11 is provided with a plurality of dispersing members 21, and the dispersing members 21 include a dispersing rotating member 22 and a mounting member 23. The mounting member 23 is installed inside the desulfurization tower body 11, and the mounting member 23 divides the desulfurization tower body 11. The dispersing rotating member 22 is rotatably mounted on the upper part of the mounting member 23. The flue gas enters from the bottom of the desulfurization tower body 11 and passes through the plurality of dispersing members 21. At the same time, the flue gas is sprayed and desulfurized inside the desulfurization tower body 11;

[0037] The dispersion rotating member 22 is provided with a rotating shaft 27 for rotating itself, and two groups of dispersion ports are arranged on the dispersion rotating member 22. The flue gas enters from the bottom of the mounting member 23 and is ejected from the two groups of rotating dispersion ports. A spray head 26 is arranged inside the desulfurization tower body 11, and the spray head 26 sprays water mist to cover the flue gas. An internal scraper 210 is installed on the rotating shaft 27 through a mounting bracket 211. The internal scraper 210 rotates and scrapes the flue gas entry point at the bottom of the mounting member 23. Multiple groups of spray heads 26 are set to different spraying angles and rotate synchronously to fully cover the flue gas.

[0038] Working principle: Flue gas enters from the bottom of the desulfurization tower body 11 and flows through multiple groups of dispersion parts 21, wherein the dispersion rotating part 22 rotates under the drive of the driving shaft 27, disperses the flue gas and sprays it out from two groups of dispersion ports to achieve uniform distribution of the flue gas; spray desulfurization treatment, the spray head 26 arranged inside the desulfurization tower body 11 sprays water mist to cover the dispersed flue gas, achieve full contact between the flue gas and the desulfurization liquid, and promote the desulfurization chemical reaction; internal cleaning mechanism, the internal scraper 210 installed on the shaft 27 scrapes the flue gas inlet at the bottom of the mounting part 23 as the shaft 27 rotates, removes the solid fine ash carried in the flue gas, and prevents it from adhering to the inner wall of the tower body or the dispersion part 21;

[0039] The design of the spray head 26 with full coverage, multiple groups of spray heads 26 are set to different spray angles and rotate synchronously to achieve full coverage of the dispersed flue gas, ensuring sufficient contact between the desulfurization liquid and the flue gas; the design of the dispersion member 21 makes the flue gas evenly distributed in the tower, and cooperates with the rotating spray head 26 to increase the contact area between the flue gas and the desulfurization liquid, thereby improving the desulfurization efficiency; prevent blockage and wear, the rotation and scraping of the internal scraper 210 effectively removes the solid fine ash that may be attached to the inner wall of the tower body, preventing the flue clogging and tower body wear; reduce secondary pollution, through the full coverage spray design, reduce the escape of unreacted SO2 in the flue gas, and reduce the risk of secondary pollution; reduce maintenance costs, automatic cleaning machine The system reduces the need for manual cleaning, reduces maintenance costs and downtime; improves operational safety, reduces the need for manual cleaning, reduces the risk of operators being exposed to harmful flue gases, and improves operational safety; optimizes spatial layout, the compact design of the desulfurization tower body 11 and the denitrification tower body 12 saves space and optimizes the factory layout; improves system stability and reliability, the use of the magnetic suspension oxidation fan 14 reduces mechanical wear and improves the long-term stability and reliability of the system; this desulfurization and denitrification device based on the magnetic suspension oxidation fan 14 achieves efficient flue gas treatment through its innovative dispersion element 21 and spray head 26 design, while ensuring the long-term stable operation of the equipment and low maintenance requirements;

[0040] The flue gas enters the interior of the desulfurization tower body 11 through the flue gas inlet pipe 18, and the sulfur dioxide in the flue gas reacts with the calcium carbonate in the absorption liquid through the desulfurization tower body 11 to generate substances such as calcium sulfite, and then the air sent in by the magnetic levitation oxidation fan 14 undergoes an oxidation reaction to finally form calcium sulfate; the magnetic levitation oxidation fan used in the present application is actively suspended and controlled, with precise control of the center of the shaft position, first suspended and then rotated, and can be started and stopped at will, running at a low speed, and starting and stopping without friction. The motor has high efficiency, low energy consumption, low noise, and no mechanical maintenance; the magnetic levitation blower can provide the required gas pressurization in the desulfurization equipment to ensure that the gas pressure and flow rate inside the desulfurization reactor meet the desulfurization process requirements.

[0041] like Figure 5 and Figure 6 As shown, in order to preliminarily filter the flue gas entering the dispersion element 21, a filter 28 is arranged at the bottom of the dispersion element 21, and the filter 28 preliminarily filters the flue gas entering the dispersion element 21. A filter scraper 29 is installed on the rotating shaft 27, and the filter scraper 29 follows the rotation of the rotating shaft 27 to scrape the upper and lower surfaces of the filter 28. A cleaning nozzle 218 is arranged inside the desulfurization tower body 11, and the cleaning nozzle 218 flushes the surface of the filter 28.

[0042] like Figure 5 As shown, specifically, the spray heads 26 are configured as multiple groups of fan-shaped spray heads, and the multiple groups of spray heads 26 rotate in a direction deviating from their own axis to obtain a larger spray coverage range, and the spray angles of the multiple groups of spray heads 26 are cross-arranged to fully cover the smoke sprayed from the two groups of dispersion ports. Figure 5 and Figure 6 As shown, a first nozzle 261 is provided at the end of the spray head 26, and a plurality of second nozzles 262 are provided on the side of the end of the spray head 26. A rotatable passive driving wheel 214 is rotatably mounted on the first nozzle 261, and a connecting member 216 is connected to the passive driving wheel 214. A cleaning member 217 is provided at the end of the connecting member 216. The cleaning member 217 cleans the plurality of second nozzles 262 by following the rotation of the passive driving wheel 214.

[0043] like Figure 5 As shown in FIG. 1 , regarding the rotation driving mode of the spray head 26, an active driving wheel 212 is installed on the rotating shaft 27, and the active driving wheel 212 is engaged with the passive driving wheel 214 to drive it; the spray heads 26 are distributed in a circular array and are arranged at different heights, and the active driving wheel 212 is provided with multiple groups to drive multiple groups of spray heads 26 at different heights, such as Figure 5 As shown, the arrangement of multiple groups of sprinkler heads 26 is shown in the figure, with three groups being shown as an example. The three groups of sprinkler heads 26 are distributed at different heights. A lower group of sprinkler heads 26 sprays horizontally inward for coverage, a middle group of sprinkler heads 26 sprays vertically downward for coverage, and a higher group of sprinkler heads 26 sprays obliquely toward the side for coverage. The arrangement of two groups of dispersion ports of the dispersion rotating member 22 can effectively cover the smoke.

[0044] like Figure 6 As shown, in order to clean the dispersion openings of the dispersion rotating member 22, one of the multiple groups of spray heads 26 is disposed corresponding to the two groups of dispersion openings of the dispersion rotating member 22, and the group of spray heads 26 covers the smoke and flushes the two groups of dispersion openings. Figure 7As shown, the mounting member 23 is configured to be in a conical shape to increase the flow rate of the smoke, and a connecting rotating member 215 is provided at the top of the mounting member 23, and the dispersion rotating member 22 is rotatably mounted on the top of the mounting member 23 via the connecting rotating member 215. Figure 7 As shown, in order to obtain different smoke dispersion methods, the two groups of dispersion ports are respectively a first dispersion port 24 and a second dispersion port 25. The first dispersion port 24 is arranged in multiple groups and distributed on the side of the dispersion rotating member 22, and the second dispersion port 25 is arranged in multiple groups and distributed on the top surface of the dispersion rotating member 22. When the smoke is ejected from the first dispersion port 24 and the second dispersion port 25 of the dispersion rotating member 22, the rotation of the dispersion rotating member 22 generates a stirring and centrifugal effect on the smoke to achieve uniform dispersion of the smoke.

[0045] like Figure 1 and Figure 2 As shown, specifically, the outside of the desulfurization tower body 11 and the denitration tower body 12 is provided with a liquid inlet pipe 15 and a plurality of spray pipes 16. The liquid inlet pipe 15 is connected to the plurality of spray pipes 16 to supply liquid to the spray head 26 and the cleaning spray head 218. The spray pipe 16 is provided with a rotating joint 213 with an inclined angle on the inner side of the denitration tower body 12 to realize the installation of the spray head 26 at different angles of rotation; the liquid inlet pipe 15 is provided with a control valve to switch between the use of desulfurization spray liquid and tap water. Figure 3 and Figure 4 As shown, the desulfurization tower body 11 and the denitration tower body 12 are connected by a connecting pipe 13, and the flue gas after desulfurization is passed into the denitration tower body 12 through the connecting pipe 13. The bottoms of the desulfurization tower body 11 and the denitration tower body 12 are both provided with air inlets 19 and are transported by a magnetic suspension oxidation fan 14. Figure 4 As shown, a dispersion plate 110 is provided at the inner bottom of the desulfurization tower body 11 and the denitrification tower body 12, and a plurality of groups of air holes are provided on the dispersion plate 110 so that the oxidizing air entering through the air inlet 19 can be evenly dispersed and ascended; reserved pipe openings 17 and flue gas inlet pipes 18 are provided on the sides of the desulfurization tower body 11 and the denitrification tower body 12, and the reserved pipe openings 17 are provided in a plurality of groups and are arranged corresponding to the dispersion element 21, and the flue gas inlet pipe 18 is arranged at the bottom of the side of the tower body.

[0046] In summary, the present invention has the following comprehensive effects: flue gas flow and dispersion, the flue gas enters from the bottom of the desulfurization tower body 11, flows through multiple groups of dispersion parts 21, wherein the dispersion rotating part 22 rotates under the drive of the driving shaft 27, disperses the flue gas and sprays it from two groups of dispersion ports to achieve uniform distribution of the flue gas; spray desulfurization treatment, the spray head 26 arranged inside the desulfurization tower body 11 sprays water mist to cover the dispersed flue gas, achieves full contact between the flue gas and the desulfurization liquid, and promotes the desulfurization chemical reaction; internal cleaning mechanism, the internal scraper 210 installed on the shaft 27 scrapes the flue gas inlet at the bottom of the mounting part 23 as the shaft 27 rotates, and removes the flue gas carried in the flue gas. The solid fine ash carried by the blower can be prevented from adhering to the inner wall of the tower body or the dispersion member 21; the design of the spray head 26 with full coverage, multiple groups of spray heads 26 are set at different spraying angles and rotate synchronously to achieve full coverage of the flue gas after dispersion, ensuring sufficient contact between the desulfurization liquid and the flue gas; at the same time, the magnetic levitation blower adopts magnetic levitation technology and permanent magnet synchronous motor, has stable operating characteristics, can operate continuously for a long time without mechanical wear or vibration problems, ensuring the continuous and stable operation of the desulfurization system, the magnetic levitation blower adopts advanced permanent magnet synchronous motor and magnetic levitation technology, has the characteristics of high efficiency and low energy consumption, can effectively improve the operating efficiency of the desulfurization system, reduce losses, save energy and increase efficiency.

[0047] Improve desulfurization efficiency. The design of the dispersion element 21 makes the flue gas evenly distributed in the tower. The rotating spray head 26 increases the contact area between the flue gas and the desulfurization liquid, thereby improving the desulfurization efficiency. Prevent blockage and wear. The rotation and scraping of the internal scraper 210 effectively removes solid fine ash that may adhere to the inner wall of the tower body, preventing flue blockage and tower body wear. Reduce secondary pollution. The fully covered spray design reduces the escape of unreacted SO2 in the flue gas and reduces the risk of secondary pollution. Reduce maintenance costs. The automatic cleaning mechanism reduces the need for manual cleaning, reducing maintenance costs and downtime. Improve operation Safety, reducing the need for manual cleaning, reducing the risk of operators being exposed to harmful flue gases, and improving the safety of operation; optimizing the spatial layout, the compact design of the desulfurization tower body 11 and the denitrification tower body 12 saves space and optimizes the factory layout; improving the stability and reliability of the system, the use of the magnetic suspension oxidation fan 14 reduces mechanical wear and improves the long-term stability and reliability of the system; this desulfurization and denitrification device based on the magnetic suspension oxidation fan 14 achieves efficient flue gas treatment through its innovative dispersion element 21 and spray head 26 design, while ensuring the long-term stable operation of the equipment and low maintenance requirements;

[0048] The above describes an embodiment of the present invention, but this embodiment is not limited to the above specific implementation methods. The above specific implementation methods are merely illustrative and not restrictive. Under the guidance of this embodiment, ordinary technicians in this field can also make many forms, all of which are protected by this embodiment.

Claims

1. A desulfurization and denitrification device based on a magnetic suspension fan, characterized in that: include: A desulfurization tower body (11) and a denitration tower body (12), wherein the flue gas is passed into the desulfurization tower body (11) for desulfurization, and then passed into the denitration tower body (12) after desulfurization is completed, and a liquid inlet pipe (15) and a plurality of spray pipes (16) are installed outside the desulfurization tower body (11); The desulfurization tower body (11) is provided with a plurality of dispersion components (21) inside. The dispersion components (21) include dispersion rotating components (22) and mounting components (23). The mounting components (23) are mounted inside the desulfurization tower body (11). The mounting components (23) divide the desulfurization tower body (11). The dispersion rotating components (22) are rotatably mounted on the upper part of the mounting components (23). Flue gas enters from the bottom of the desulfurization tower body (11) and passes through the plurality of dispersion components (21). At the same time, the flue gas is sprayed and desulfurized inside the desulfurization tower body (11). The dispersion rotating member (22) is provided with a rotating shaft (27) for rotating itself, and the dispersion rotating member (22) is provided with two groups of dispersion ports. Flue gas enters from the bottom of the mounting member (23) and is sprayed out from the two groups of rotating dispersion ports. A spray head (26) is provided inside the desulfurization tower body (11). The spray head (26) sprays water mist to cover the flue gas. An internal scraper (210) is installed on the rotating shaft (27). The internal scraper (210) rotates and scrapes the flue gas entrance at the bottom of the mounting member (23). Multiple groups of spray heads (26) are set to different spraying angles and rotate synchronously to fully cover the flue gas.

2. A desulfurization and denitrification device based on a magnetic suspension fan according to claim 1, characterized in that: A filter (28) is arranged at the bottom of the dispersion element (21), and the filter (28) performs preliminary filtering on the flue gas entering the dispersion element (21). A filter scraper (29) is installed on the rotating shaft (27), and the filter scraper (29) follows the rotation of the rotating shaft (27) to scrape the upper and lower surfaces of the filter (28). A cleaning nozzle (218) is arranged inside the desulfurization tower body (11), and the cleaning nozzle (218) flushes the surface of the filter (28).

3. A desulfurization and denitrification device based on a magnetic suspension fan according to claim 1, characterized in that: The spray heads (26) are configured as a plurality of fan-shaped spray heads. The plurality of spray heads (26) rotate in a direction deviating from their own axes to obtain a larger spray coverage range. The spray angles of the plurality of spray heads (26) are arranged crosswise to fully cover the smoke sprayed from the two groups of dispersion ports.

4. A desulfurization and denitrification device based on a magnetic suspension fan according to claim 3, characterized in that: The end of the spray head (26) is provided with a first nozzle (261), and the side of the end of the spray head (26) is provided with multiple groups of second nozzles (262). A rotatable passive driving wheel (214) is rotatably mounted on the first nozzle (261), and a connecting piece (216) is connected to the passive driving wheel (214). A cleaning piece (217) is provided at the end of the connecting piece (216), and the cleaning piece (217) cleans the multiple groups of second nozzles (262) following the rotation of the passive driving wheel (214).

5. A desulfurization and denitrification device based on a magnetic suspension fan according to claim 4, characterized in that: An active driving wheel (212) is mounted on the rotating shaft (27), and the active driving wheel (212) meshes with a passive driving wheel (214) to drive the same; the spray heads (26) are distributed in a circular array and are arranged at different heights, and the active driving wheel (212) is arranged in multiple groups to drive multiple groups of spray heads (26) at different heights.

6. A desulfurization and denitrification device based on a magnetic suspension fan according to claim 3, characterized in that: One group of spray heads (26) among the multiple groups of spray heads (26) is arranged corresponding to the two groups of dispersion ports of the dispersion rotating member (22), and the group of spray heads (26) covers the smoke and flushes the two groups of dispersion ports at the same time.

7. The desulfurization and denitrification device based on a magnetic suspension fan according to claim 3 is characterized in that: The mounting member (23) is configured to be in a conical shape to increase the flow rate of the smoke, and a connecting rotating member (215) is provided at the top of the mounting member (23), and the dispersing rotating member (22) is rotatably mounted on the top of the mounting member (23) via the connecting rotating member (215).

8. A desulfurization and denitrification device based on a magnetic suspension fan according to any one of claims 1 to 7, characterized in that: The two groups of dispersion ports are respectively a first dispersion port (24) and a second dispersion port (25); the first dispersion ports (24) are arranged in a plurality of groups and are distributed on the side surface of the dispersion rotating member (22); the second dispersion ports (25) are arranged in a plurality of groups and are distributed on the top surface of the dispersion rotating member (22); when smoke is ejected from the first dispersion port (24) and the second dispersion port (25) of the dispersion rotating member (22), the rotation of the dispersion rotating member (22) generates a stirring and centrifugal effect on the smoke, thereby achieving uniform dispersion of the smoke.

9. A desulfurization and denitrification device based on a magnetic suspension fan according to claim 8, characterized in that: A liquid inlet pipe (15) and a plurality of spray pipes (16) are arranged outside the desulfurization tower body (11) and the denitration tower body (12); the liquid inlet pipe (15) is connected to the plurality of spray pipes (16) to supply liquid to the spray head (26) and the cleaning spray head (218); the spray pipe (16) is provided with a rotating joint (213) with an inclined angle on the inner side of the denitration tower body (12) to realize the installation of the spray head (26) rotating at different angles; and a control valve is arranged on the liquid inlet pipe (15) to switch between the use of desulfurization spray liquid and tap water.

10. A desulfurization and denitrification device based on a magnetic suspension fan according to claim 9, characterized in that: The desulfurization tower body (11) and the denitration tower body (12) are connected via a connecting pipe (13), and the flue gas after desulfurization is introduced into the denitration tower body (12) via the connecting pipe (13). The bottoms of the desulfurization tower body (11) and the denitration tower body (12) are both provided with air inlets (19), and air is transported by a magnetic suspension oxidation fan (14). The sides of the desulfurization tower body (11) and the denitration tower body (12) are provided with reserved pipe openings (17) and flue gas inlet pipes (18), and the reserved pipe openings (17) are provided in multiple groups and are arranged corresponding to the dispersion components (21), and the flue gas inlet pipes (18) are arranged at the bottom of the side of the tower body.

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