Flue gas desulfurization and denitrification treatment device

Abstract

The application discloses a flue gas desulfurization and denitrification treatment device and relates to the technical field of flue gas treatment. The device comprises a dust removal box, a box cover, a flue gas inlet pipe, a flue gas outlet pipe, an air inlet pipe, a mounting plate, an air outlet pipe, a connecting seat, a cylindrical body, a conical cylindrical body, a central pipe and a Tesla valve body. The device is provided with the Tesla valve body. Flue gas enters the cylindrical body, is discharged through the central pipe, dust falls along the conical cylindrical body, flue gas passes through the Tesla valve body into the air outlet pipe and is discharged through the flue gas outlet pipe. When flue gas passes through the Tesla valve body, due to the structure of the Tesla valve body, strong resistance and vortex area are generated when the flue gas flows in the reverse direction. Any suspended particles or impurities that attempt to move in the reverse direction of the fluid are trapped or decelerated by the complex and high-energy vortex area, are deposited on the corners and walls of the flow channel and are difficult to continue to move forward, so that the dust in the gas passing through the Tesla valve body is trapped, and the dust escaping with the gas flow is reduced.

Description

Technical Field

[0001] This invention relates to the field of flue gas treatment technology, specifically a flue gas desulfurization and denitrification treatment device. Background Technology

[0002] Flue gas desulfurization and denitrification technology is a boiler flue gas purification technology applied in industries such as coal-fired power plants, steel, and chemicals. It is mainly used to reduce sulfur dioxide (SO2) and nitrogen oxides (NOx). x The technology mainly includes wet desulfurization, semi-dry desulfurization, selective catalytic reduction (SCR), selective non-catalytic reduction (SNCR), and various combined desulfurization and denitrification processes. These technologies remove pollutants through mechanisms such as physical absorption, chemical oxidation, or catalytic reduction. In typical desulfurization and denitrification processes, dust removal plays a crucial role. First, for SCR denitrification processes, high concentrations of dust in the flue gas can wear down the catalyst and cover its active sites, leading to catalyst deactivation and severely affecting denitrification efficiency and service life. Second, in wet desulfurization, if the flue gas carries a large amount of dust into the absorption tower, it can cause "poisoning" of the desulfurization slurry, reduce gypsum quality, and exacerbate equipment scaling and corrosion. Therefore, configuring efficient and stable dust removal equipment before the desulfurization and denitrification unit is of great significance for ensuring the long-term stable operation of the entire system and reducing maintenance costs.

[0003] In conventional dust removal processes, cyclone separators are widely used due to their simple structure and low operating costs. However, cyclone separators are prone to airflow re-carrying under high-speed airflow, causing some fine dust to escape with the outlet airflow, affecting the final emission standards. Especially when the flue gas flow rate fluctuates or the dust concentration is high, the separation efficiency of traditional cyclone dust collectors further decreases, making it difficult to meet increasingly stringent ultra-low emission requirements.

[0004] To enhance dust removal efficiency, existing technologies have attempted to add auxiliary interception structures such as filters, porous ceramics, or corrugated plates to the exhaust pipe. However, these structures are prone to clogging, offer high resistance, are difficult to clean, and have limited efficiency in capturing particles smaller than micrometers. Furthermore, some devices employ multi-stage cyclones in series or are combined with electrostatic precipitators or bag filters. While this improves efficiency, it significantly increases equipment size, energy consumption, and maintenance complexity.

[0005] As a fluid control structure without moving parts, the Tesla valve has an internal asymmetric flow channel. Theoretically, based on fluid dynamics principles, it can generate high resistance and vortex zones during reverse flow, possessing the potential to trap suspended particles. However, current technologies lack solutions for optimizing the Tesla valve structure and integrating it into flue gas dust removal systems, especially for organically combining it with cyclone separators to achieve efficient secondary capture of escaping dust while maintaining low-resistance operation. Furthermore, traditional Tesla valves are mostly integrally molded from metal or plastic, making them unsuitable for high-temperature and corrosive flue gas environments, and they lack a modular design for easy maintenance and replacement, limiting their practical application in industrial flue gas treatment.

[0006] Therefore, there is an urgent need for a flue gas treatment device that can further efficiently trap fine dust on the basis of cyclone dust removal, and has a compact structure and is easy to maintain, in order to solve the technical problems of serious dust escape, easy clogging and damage of auxiliary dust removal structure, and difficulty in equipment maintenance and replacement in the existing technology. Summary of the Invention

[0007] The purpose of this invention is to provide a flue gas desulfurization and denitrification treatment device in order to reduce the amount of dust discharged with the gas flow.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a flue gas desulfurization and denitrification treatment device, comprising a desulfurization and denitrification module and a dust removal module, wherein the dust removal module is connected to the desulfurization and denitrification module, the dust removal module includes a dust removal box, a box cover is fixedly connected to the top of the dust removal box by bolts, a dust discharge port is fixedly connected to the bottom of the dust removal box, a valve is installed on the outer wall of the dust discharge port, a flue gas inlet pipe is provided at one end of the dust removal box, a flue gas outlet pipe is provided at the other end of the dust removal box, a plurality of air inlet pipes are fixedly connected to the outer wall of the flue gas inlet pipe, the air inlet pipes are fixedly connected to the dust removal box and extend into the inner cavity of the dust removal box, and an mounting plate is fixedly connected to the inner wall of the dust removal box above the air inlet pipes, the mounting plate... An exhaust pipe is provided at the top, and a connecting seat is fixedly connected to the other end of the dust collector. The connecting seat is fixedly connected to the exhaust pipe and their inner cavities are interconnected. Multiple exhaust pipes are connected to the connecting seat. A cylindrical body is fixedly connected to the bottom end of the mounting plate. The air inlet pipe is connected to the cylindrical body. A conical cylinder is fixedly connected to the bottom end of the cylindrical body. A central tube is fixedly connected to the top of the inner wall of the cylindrical body. An installation groove is opened at the top of the mounting plate at the top of the central tube. A Tesla valve body is slidably connected to the inner wall of the installation groove. A support ring is fixedly connected to the top of the Tesla valve body. The Tesla valve body is positioned by a positioning mechanism, and the air inlet pipe is opened and closed by a blocking mechanism.

[0009] As a further aspect of the present invention: the Tesla valve body includes a valve body shell and an asymmetric flow channel structure disposed therein. The flow channel structure has multiple continuous and gradually narrowing-expanding semi-circular folding channels, which makes the resistance smaller when the fluid flows in the forward direction and the resistance significantly increased when it flows in the reverse direction, forming a vortex region.

[0010] As a further embodiment of the present invention: the positioning mechanism includes a connecting pipe, which is fixedly connected to the bottom end of the exhaust pipe. A positioning seat is fixedly connected to the bottom end of the connecting pipe. Slots are symmetrically provided on both sides of the outer wall of the positioning seat. Insert rods are symmetrically fixedly connected to the top of the mounting plate on both sides of the Tesla valve body. A horizontal plate is fixedly connected to the inner wall of the dust collector above the exhaust pipe. A rotating column is rotatably connected to the top of the horizontal plate. A first threaded rod is fixedly connected to the bottom end of the rotating column. A displacement plate is slidably connected to the outer wall of the first threaded rod. The displacement plate is fixedly connected to the exhaust pipe. Limiting posts are symmetrically fixedly connected to the top of the displacement plate. The limiting posts penetrate the horizontal plate. A baffle is fixedly connected to the bottom end of the exhaust pipe near the connecting seat.

[0011] As a further embodiment of the present invention: the blocking mechanism includes a mounting rod, which is fixedly connected to one end of the box cover. A positioning block is fixedly connected to the bottom end of the mounting rod. A fixing plate is fixedly connected to one end of the dust collector box. A rotating disk is rotatably connected to the top end of the fixing plate. A locking block is fixedly connected to the top end of the rotating disk. A second threaded rod is fixedly connected to the bottom end of the rotating disk. A movable seat is slidably connected to the outer wall of the second threaded rod. The movable seat slides along the outer wall of the dust collector box. A partition is fixedly connected to the bottom end of the movable seat. A docking groove is opened at the upper end of the air inlet pipe, and the lower end of the partition is inserted into the docking groove. When the partition moves down, it can close the air inlet pipe.

[0012] As a further embodiment of the present invention: a limiting block extending from the insert rod is slidably connected inside the insert rod, a first spring is connected between the limiting block and the insert rod, a vertical rod is slidably connected inside the insert rod below the limiting block, a sliding rod is slidably connected inside the mounting plate at the bottom end of the vertical rod, a push frame is slidably connected inside the mounting plate at one end of the sliding rod, a second spring is connected between the push frame and the mounting plate, and one end of the push frame extends out of the dust collection box.

[0013] As a further embodiment of the present invention: the outer wall of the displacement plate is provided with a first threaded hole, which matches the first threaded rod; the outer wall of the horizontal plate is provided with a limiting hole, the inner wall of the limiting hole is in contact with the outer wall of the limiting post.

[0014] As a further embodiment of the present invention: the outer wall of the support ring is fitted with the inner wall of the positioning seat, and the inner wall of the slot is fitted with the outer wall of the insertion rod.

[0015] As a further aspect of the present invention, a sealing ring is provided between the inner wall of the connecting seat and the outer wall of the exhaust pipe.

[0016] As a further embodiment of the present invention: the positioning block engages with the card block.

[0017] As a further embodiment of the present invention: the outer wall of the movable seat is provided with a second threaded hole, which matches the second threaded rod.

[0018] As a further embodiment of the present invention: a first inclined surface is provided at one end of the push frame extending from the dust collection box; a second inclined surface is provided on the outer wall of the push frame, and the slide rod contacts the second inclined surface; a third inclined surface is provided at the bottom end of the vertical rod, and the slide rod contacts the third inclined surface; a fourth inclined surface is provided at the bottom end of the limiting block, and the top end of the vertical rod contacts the fourth inclined surface; a semi-circular surface is provided at one end of the limiting block extending from the insertion rod.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. By setting up a Tesla valve body, the flue gas enters the cylindrical body and is discharged through the central pipe. Dust falls down along the conical cylinder. The flue gas passes through the Tesla valve body and enters the exhaust pipe, and is finally discharged through the exhaust pipe. When the flue gas passes through the Tesla valve body, its structure generates extremely strong resistance and vortex zones when flowing in the opposite direction. Any suspended particles or impurities that attempt to move in the opposite direction with the fluid will be "trapped" or slowed down by these complex, high-energy-consuming vortex zones and deposited on the corners and walls of the flow channel, making it difficult to continue moving forward. This traps the passing dust, making it easier to trap dust in the gas passing through the Tesla valve body and reduce the amount of dust discharged with the gas flow.

[0021] 2. By specifically designing the Tesla valve body as a structure comprising a valve body shell and an internal asymmetric flow channel, where the flow channel has multiple continuous, gradually contracting-expanding semi-circular folding channels, it achieves both high-efficiency interception and low-resistance operation: when the flue gas flows in the forward direction, the flow channel follows the flow direction, resulting in low resistance and not affecting the overall system energy consumption; while when dust attempts to escape in the reverse direction with the airflow, the asymmetric contracting-expanding structure significantly increases local resistance and forms a controllable vortex zone, enhancing the inertial capture and settling of fine particles. This structure effectively solves the problems of easy clogging and high resistance in traditional filter elements, and is particularly suitable for the deep purification of dusty flue gas. Without increasing moving parts or external energy consumption, it achieves secondary high-efficiency capture of escaping dust, improving overall dust removal efficiency and stability.

[0022] 3. By setting up positioning and blocking mechanisms, the cover is removed, the rotating disc is rotated to move the partition, and the intake pipe is closed. The rotating column is rotated to move the exhaust pipe upward, causing the positioning seat to move upward. At this time, the Tesla valve body of one row can be replaced. After the replacement is completed, the exhaust pipe moves downward to position the Tesla valve body, and then the intake pipe is opened. At this time, the position of the positioning seat is automatically fixed, thereby reinforcing the installation of the Tesla valve body and facilitating the replacement of the Tesla valve body. When replacing one row, the other Tesla valve bodies can continue to operate. At the same time as the replacement, the exhaust pipe and intake pipe of the corresponding line are closed to prevent smoke leakage. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the dust collector box of the present invention;

[0025] Figure 3 This is a schematic diagram of the installation of the Tesla valve body of the present invention;

[0026] Figure 4 This is a schematic diagram of the internal structure of the Tesla valve body of the present invention;

[0027] Figure 5 This is a schematic diagram of the installation of the exhaust pipe of the present invention;

[0028] Figure 6 This is a schematic diagram of the internal structure of the exhaust pipe of the present invention;

[0029] Figure 7 This is a schematic diagram of the installation of the rotating disk of the present invention;

[0030] Figure 8 This is a schematic diagram of the rotating disk of the present invention;

[0031] Figure 9 This is a schematic diagram of the installation of the pusher frame of the present invention;

[0032] Figure 10 For the present invention Figure 9 Enlarged view of point A in the middle;

[0033] Figure 11 This is a schematic diagram of the installation of the limiting block of the present invention.

[0034] In the diagram: 1. Dust collection box; 2. Box cover; 3. Dust discharge port; 4. Valve; 5. Smoke inlet pipe; 6. Air inlet pipe; 7. Mounting plate; 8. Positioning mechanism; 801. Connecting pipe; 802. Positioning seat; 803. Slot; 804. Insert rod; 805. Horizontal plate; 806. Rotating column; 807. First threaded rod; 808. Displacement plate; 809. Limiting column; 810. Baffle; 901. Blocking mechanism; 902. Mounting rod; 903. Positioning block; 904. Locking block; 905. 4. Fixed plate; 905. Rotating disk; 906. Second threaded rod; 907. Movable seat; 908. Partition plate; 909. Limiting block; 910. First spring; 911. Vertical rod; 912. Slide rod; 913. Push frame; 914. Second spring; 10. Exhaust pipe; 11. Connecting seat; 12. Smoke exhaust pipe; 13. Cylindrical body; 14. Central tube; 15. Mounting groove; 16. Tesla valve body; 17. Support ring; 18. Conical cylinder; 19. Sealing ring. Detailed Implementation

[0035] 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.

[0036] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0037] Please see Figures 1 to 11In this embodiment of the invention, a flue gas desulfurization and denitrification treatment device includes a desulfurization and denitrification module and a dust removal module. The dust removal module is connected to the desulfurization and denitrification module. The dust removal module includes a dust collection box 1. A box cover 2 is fixedly connected to the top of the dust collection box 1 by bolts. A dust discharge port 3 is fixedly connected to the bottom of the dust collection box 1. A valve 4 is installed on the outer wall of the dust discharge port 3. A flue gas inlet pipe 5 is provided at one end of the dust collection box 1, and a flue gas exhaust pipe 12 is provided at the other end of the dust collection box 1. Multiple air inlet pipes 6 are fixedly connected to the outer wall of the flue gas inlet pipe 5. The air inlet pipes 6 are fixedly connected to the dust collection box 1 and extend into the inner cavity of the dust collection box 1. An installation plate 7 is fixedly connected to the inner wall of the dust collection box 1 above the air inlet pipes 6. An exhaust pipe 10 is provided above the installation plate 7. The other end of 1 is fixedly connected to a connecting seat 11. The connecting seat 11 is fixedly connected to the exhaust pipe 12 and their inner cavities are interconnected. Multiple exhaust pipes 10 are connected to the connecting seat 11. The bottom end of the mounting plate 7 is fixedly connected to a cylindrical body 13. The air inlet pipe 6 is connected to the cylindrical body 13. The bottom end of the cylindrical body 13 is fixedly connected to a conical cylinder 18. The top of the inner wall of the cylindrical body 13 is fixedly connected to a central tube 14. The top of the mounting plate 7 is located at the top of the central tube 14 and has a mounting groove 15. The inner wall of the mounting groove 15 is slidably connected to a Tesla valve body 16. The top of the Tesla valve body 16 is fixedly connected to a support ring 17. The Tesla valve body 16 is positioned by a positioning mechanism 8. The air inlet pipe 6 is opened and closed by a blocking mechanism 9.

[0038] like Figure 4 As shown, the Tesla valve body 16 is a passive one-way valve, which includes a valve body shell and an asymmetric flow channel structure inside it. The flow channel structure has multiple continuous and gradually narrowing-expanding semi-circular folding channels, which makes the resistance small when the fluid flows in the forward direction and the resistance significantly increases and forms a vortex zone when it flows in the reverse direction.

[0039] In this embodiment: flue gas enters the cylindrical body 13 through the flue gas inlet pipe 5 and the air inlet pipe 6. The flue gas rotates spirally inside the cylindrical body 13 and is finally discharged through the central pipe 14. Dust falls along the conical body 18 and is collected in the dust collection box 1. The flue gas passing through the central pipe 14 passes through the Tesla valve body 16 and enters the exhaust pipe 10, and is finally discharged through the connecting seat 11 and the exhaust pipe 12. When the flue gas passes through the Tesla valve body 16, its structure generates extremely strong resistance and vortex areas when flowing in the opposite direction. Any suspended particles or impurities that attempt to move in the opposite direction with the fluid will be "trapped" or slowed down by these complex, high-energy-consuming vortex areas and deposited on the corners and walls of the flow channel, making it difficult to continue moving forward, thereby intercepting the passing dust. This design facilitates the trapping of dust in the gas passing through the Tesla valve body 16, reducing the amount of dust discharged with the gas flow. When discharging dust from the dust collection box 1, the dust discharge port 3 is opened through the valve 4, allowing the dust in the dust collection box 1 to be discharged through the dust discharge port 3. It is worth noting that the Tesla valve body 16 needs to be cleaned or replaced regularly.

[0040] Please refer to this carefully. Figures 2 to 6 The positioning mechanism 8 includes a connecting pipe 801, which is fixedly connected to the bottom end of the exhaust pipe 10. A positioning seat 802 is fixedly connected to the bottom end of the connecting pipe 801. Slots 803 are symmetrically opened on both sides of the outer wall of the positioning seat 802. Insert rods 804 are symmetrically fixedly connected to the top of the mounting plate 7 on both sides of the Tesla valve body 16. A horizontal plate 805 is fixedly connected to the inner wall of the dust collection box 1 above the exhaust pipe 10. A rotating column 806 is rotatably connected to the top of the horizontal plate 805. A first threaded rod 807 is fixedly connected to the bottom end of the rotating column 806. A displacement plate 808 is slidably connected to the outer wall of the first threaded rod 807. The displacement plate 808 is fixedly connected to the exhaust pipe 10. A limit post 809 is symmetrically fixedly connected to the top of the displacement plate 808. The limit post 809 passes through the horizontal plate 805. A baffle 810 is fixedly connected to the bottom end of the exhaust pipe 10 near the connecting seat 11.

[0041] In this embodiment: When replacing the Tesla valve body 16, the cover 2 is removed with bolts. The operator drives the rotating column 806 to rotate using a tool. The rotation of the rotating column 806 drives the first threaded rod 807 to rotate, which in turn drives the displacement plate 808 to move. The displacement of the displacement plate 808 then drives the exhaust pipe 10 to move. When installing the Tesla valve body 16, the Tesla valve body 16 is placed in the mounting groove 15, and the support ring 17 contacts the top of the mounting plate 7. Then, the exhaust pipe 10 moves downward, which drives the connecting pipe 801 and the positioning seat 802 to move synchronously until the bottom of the positioning seat 802 contacts the mounting plate 7. The support ring 17 enters the inner wall of the positioning seat 802 to position the Tesla valve body 16. At this time, the insertion rod 804 is inserted into the slot 803. When the exhaust pipe 10 moves upward, it causes the positioning seat 802 to separate from the mounting plate 7, thus facilitating the replacement of the Tesla valve body 16. During the replacement operation, the displacement of the exhaust pipe 10 causes the baffle 810 to move as well. The baffle 810 blocks the opening on the connecting seat 11 that connects with the exhaust pipe 10, preventing smoke from leaking out of the opening on the connecting seat 11.

[0042] Please refer to this carefully. Figures 7 to 11The blocking mechanism 9 includes a mounting rod 901, which is fixedly connected to one end of the cover 2. A positioning block 902 is fixedly connected to the bottom end of the mounting rod 901. A fixing plate 904 is fixedly connected to one end of the dust collector 1. A rotating disk 905 is rotatably connected to the top end of the fixing plate 904. A locking block 903 is fixedly connected to the top end of the rotating disk 905. A second threaded rod 906 is fixedly connected to the bottom end of the rotating disk 905. A movable seat 907 is slidably connected to the outer wall of the second threaded rod 906. The movable seat 907 slides along the outer wall of the dust collector 1. A partition 908 is fixedly connected to the bottom end of the movable seat 907. A docking groove is opened at the upper end of the air inlet pipe 6. The lower end of the partition 908 is inserted into the docking groove. When the partition 908 moves down, it can close the air inlet pipe 6.

[0043] The insertion rod 804 has a sliding connection to a limiting block 909 extending out of the insertion rod 804. A first spring 910 is connected between the limiting block 909 and the insertion rod 804. A vertical rod 911 is slidably connected to the inside of the insertion rod 804 below the limiting block 909. A sliding rod 912 is slidably connected to the inside of the mounting plate 7 at the bottom end of the vertical rod 911. A pusher 913 is slidably connected to the inside of the mounting plate 7 at one end of the sliding rod 912. A second spring 914 is connected between the pusher 913 and the mounting plate 7. One end of the pusher 913 extends out of the dust collection box 1.

[0044] In this embodiment: when the cover 2 is fixed at the top of the dust collector 1, the positioning block 902 and the locking block 903 engage to prevent the rotating disk 905 from rotating; when the cover 2 is removed, the positioning block 902 and the locking block 903 separate, and the rotating disk 905 can rotate. Rotating the rotating disk 905 drives the second threaded rod 906 to rotate, and the rotation of the second threaded rod 906 drives the movable seat 907 to move. The movement of the movable seat 907 drives the partition 908 to move, and the downward movement of the partition 908 closes the air inlet pipe 6.

[0045] When positioning the Tesla valve body 16, the insert rod 804 is inserted into the slot 803. At this time, the limiting block 909 is displaced by the elastic force of the first spring 910 and contacts the top of the positioning seat 802. When the movable seat 907 moves upward and drives the partition 908 to move upward, opening the air intake pipe 6, the movable seat 907 contacts the end of the push frame 913 that extends out of the dust collector box 1, pushing the push frame 913 to move and compressing the second spring 914. The displacement of the push frame 913 pushes the slide rod 912 to move, and the displacement of the slide rod 912 pushes the vertical rod 911 to move. The vertical rod 911 moves and contacts the limiting block 909, preventing the limiting block 909 from retracting into the insert rod 804, thus maintaining the engagement state with the positioning seat 802, thereby fixing the position of the positioning seat 802 and reinforcing the position of the Tesla valve body 16.

[0046] When replacing the Tesla valve body 16, the cover 2 is removed, and the rotating disk 905 is rotated to move the partition 908, closing the intake pipe 6. At this time, the fixing of the positioning seat 802 is automatically released. Rotating the rotating column 806 moves the exhaust pipe 10 upwards, causing the positioning seat 802 to move upwards. This allows for cleaning or replacement of one row of Tesla valve bodies 16. After replacement, the exhaust pipe 10 moves downwards to position the Tesla valve body 16, and then the intake pipe 6 is opened. This automatically fixes the position of the positioning seat 802, thus reinforcing the installation of the Tesla valve body 16. This design facilitates the replacement of the Tesla valve body 16, and while replacing one row, the other Tesla valve bodies 16 can continue to operate. Simultaneously, the exhaust pipe 10 and intake pipe 6 of the corresponding line are closed to prevent smoke leakage.

[0047] Please refer to this carefully. Figures 2 to 6 The outer wall of the displacement plate 808 is provided with a first threaded hole, which matches the first threaded rod 807.

[0048] In this embodiment: the rotation of the rotating column 806 drives the first threaded rod 807 to rotate, the rotation of the first threaded rod 807 drives the displacement plate 808 to move, and the displacement of the displacement plate 808 drives the exhaust pipe 10 to move.

[0049] Please refer to this carefully. Figures 2 to 6 A limiting hole is provided on the outer wall of the horizontal plate 805, and the inner wall of the limiting hole fits against the outer wall of the limiting post 809.

[0050] In this embodiment: when the displacement plate 808 is displaced, the displacement of the displacement plate 808 causes the limiting post 809 to be displaced. The limiting post 809 slides in the limiting hole to limit the movement direction of the displacement plate 808.

[0051] Please refer to this carefully. Figures 2 to 6 The outer wall of the support ring 17 fits against the inner wall of the positioning seat 802, and the inner wall of the slot 803 fits against the outer wall of the insertion rod 804.

[0052] In this embodiment: the Tesla valve body 16 is placed into the mounting groove 15, the support ring 17 contacts the top of the mounting plate 7, and then the exhaust pipe 10 moves downward. The displacement of the exhaust pipe 10 drives the connecting pipe 801 and the positioning seat 802 to move synchronously until the bottom of the positioning seat 802 contacts the mounting plate 7. The support ring 17 enters the inner wall of the positioning seat 802 to position the Tesla valve body 16. At this time, the insertion rod 804 is inserted into the slot 803.

[0053] Please refer to this carefully. Figures 2 to 6A sealing ring 19 is provided between the inner wall of the connecting seat 11 and the outer wall of the exhaust pipe 10.

[0054] In this embodiment, the sealing ring 19 is used to improve the sealing performance of the connection between the connecting seat 11 and the exhaust pipe 10 and the baffle 810 respectively. When the exhaust pipe 10 and the baffle 810 move, the sealing ring 19 always maintains a sealed connection or sealing blockage of the connecting seat 11.

[0055] Please refer to this carefully. Figures 7 to 11 Positioning block 902 engages with card block 903.

[0056] In this embodiment: when the cover 2 is fixed on the top of the dust collector 1, the positioning block 902 and the locking block 903 engage to prevent the rotating disk 905 from rotating.

[0057] Please refer to this carefully. Figures 7 to 11 The outer wall of the movable seat 907 is provided with a second threaded hole, which matches the second threaded rod 906.

[0058] In this embodiment: rotating the rotating disk 905 causes the second threaded rod 906 to rotate, the second threaded rod 906 rotates and causes the movable seat 907 to move, and the movable seat 907 moves and causes the partition 908 to move.

[0059] Please refer to this carefully. Figures 7 to 11 The pusher frame 913 extends out of the dust collector 1 and has a first inclined surface; the outer wall of the pusher frame 913 has a second inclined surface, and the slide rod 912 contacts the second inclined surface; the bottom end of the vertical rod 911 has a third inclined surface, and the slide rod 912 contacts the third inclined surface; the bottom end of the limiting block 909 has a fourth inclined surface, and the top end of the vertical rod 911 contacts the fourth inclined surface; the end of the limiting block 909 extending out of the insertion rod 804 has a semi-circular surface.

[0060] In this embodiment: when positioning the Tesla valve body 16, the insert rod 804 is inserted into the slot 803. At this time, the limiting block 909 is displaced by the elastic force of the first spring 910 and contacts the top of the positioning seat 802. When the movable seat 907 moves upward, it drives the partition 908 to move upward and opens the air intake pipe 6. The movable seat 907 contacts the push frame 913 and pushes the push frame 913 to move, which compresses the second spring 914. The displacement of the push frame 913 pushes the slide rod 912 to move, and the displacement of the slide rod 912 pushes the vertical rod 911 to move. The displacement of the vertical rod 911 contacts the limiting block 909, so that the limiting block 909 cannot move into the insert rod 804 and separate from the positioning seat 802, thereby fixing the position of the positioning seat 802 and reinforcing the position of the Tesla valve body 16.

[0061] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A flue gas desulfurization and denitrification treatment device, comprising a desulfurization and denitrification module and a dust removal module, wherein the dust removal module is connected to the desulfurization and denitrification module, characterized in that, The dust removal module includes a dust collection box (1), with a box cover (2) fixedly connected to the top of the dust collection box (1) by bolts. A dust discharge port (3) is fixedly connected to the bottom of the dust collection box (1), and a valve (4) is installed on the outer wall of the dust discharge port (3). A smoke inlet pipe (5) is provided at one end of the dust collection box (1), and a smoke exhaust pipe (12) is provided at the other end of the dust collection box (1). Multiple air inlet pipes (6) are fixedly connected to the outer wall of the smoke inlet pipe (5). The air inlet pipes (6) are fixedly connected to the dust collection box (1) and extend into the inner cavity of the dust collection box (1). An installation plate (7) is fixedly connected to the inner wall of the dust collection box (1) above the air inlet pipes (6). An exhaust pipe (10) is provided above the installation plate (7). A connecting seat (11) is fixedly connected to the other end of the dust collection box (1). The connecting seat (11) is connected to the... The exhaust pipe (12) is fixedly connected and its inner cavity is interconnected. Multiple exhaust pipes (10) are connected to the connecting seat (11). A cylindrical body (13) is fixedly connected to the bottom end of the mounting plate (7). The air inlet pipe (6) is connected to the cylindrical body (13). A conical cylinder (18) is fixedly connected to the bottom end of the cylindrical body (13). A central tube (14) is fixedly connected to the top of the inner wall of the cylindrical body (13). An installation groove (15) is opened at the top of the central tube (14) at the top end of the mounting plate (7). A Tesla valve body (16) is slidably connected to the inner wall of the installation groove (15). A support ring (17) is fixedly connected to the top end of the Tesla valve body (16). The Tesla valve body (16) is positioned by a positioning mechanism (8). The air inlet pipe (6) is switched on and off by a blocking mechanism (9). The positioning mechanism (8) includes a connecting pipe (801), which is fixedly connected to the bottom end of the exhaust pipe (10). A positioning seat (802) is fixedly connected to the bottom end of the connecting pipe (801). Slots (803) are symmetrically provided on both sides of the outer wall of the positioning seat (802). Insert rods (804) are symmetrically fixedly connected to the top of the mounting plate (7) on both sides of the Tesla valve body (16). A horizontal plate (805) is fixedly connected to the inner wall of the dust collection box (1) above the exhaust pipe (10). 5) The top end is rotatably connected to a rotating column (806), the bottom end of the rotating column (806) is fixedly connected to a first threaded rod (807), the outer wall of the first threaded rod (807) is slidably connected to a displacement plate (808), the displacement plate (808) is fixedly connected to the exhaust pipe (10), the top end of the displacement plate (808) is symmetrically fixedly connected to a limiting column (809), the limiting column (809) passes through the horizontal plate (805), and the bottom end of the exhaust pipe (10) near the connecting seat (11) is fixedly connected to a baffle (810). The blocking mechanism (9) includes a mounting rod (901), which is fixedly connected to one end of the box cover (2). A positioning block (902) is fixedly connected to the bottom end of the mounting rod (901). A fixing plate (904) is fixedly connected to one end of the dust collection box (1). A rotating disk (905) is rotatably connected to the top end of the fixing plate (904). A locking block (903) is fixedly connected to the top end of the rotating disk (905). The bottom end of the air inlet pipe (6) is fixedly connected to a second threaded rod (906), and the outer wall of the second threaded rod (906) is slidably connected to a movable seat (907). The movable seat (907) slides along the outer wall of the dust collector (1), and the bottom end of the movable seat (907) is fixedly connected to a partition plate (908). A docking groove is opened at the upper end of the air inlet pipe (6), and the lower end of the partition plate (908) is inserted into the docking groove. When the partition plate (908) moves down, it can close the air inlet pipe (6).

2. The flue gas desulfurization and denitrification treatment device according to claim 1, characterized in that, The Tesla valve body (16) includes a valve body shell and an asymmetric flow channel structure disposed therein, the flow channel structure having multiple continuous and gradually narrowing-expanding frustum-shaped return channels.

3. The flue gas desulfurization and denitrification treatment device according to claim 1, characterized in that, The insertion rod (804) has a sliding connection inside a limiting block (909) extending out of the insertion rod (804). A first spring (910) is connected between the limiting block (909) and the insertion rod (804). A vertical rod (911) is slidably connected inside the insertion rod (804) below the limiting block (909). A sliding rod (912) is slidably connected inside the mounting plate (7) at the bottom end of the vertical rod (911). A pusher frame (913) is slidably connected inside the mounting plate (7) at one end of the sliding rod (912). A second spring (914) is connected between the pusher frame (913) and the mounting plate (7). One end of the pusher frame (913) extends out of the dust collection box (1).

4. The flue gas desulfurization and denitrification treatment device according to claim 1, characterized in that, The outer wall of the displacement plate (808) is provided with a first threaded hole, which matches the first threaded rod (807); the outer wall of the horizontal plate (805) is provided with a limiting hole, the inner wall of the limiting hole is in contact with the outer wall of the limiting post (809).

5. The flue gas desulfurization and denitrification treatment device according to claim 1, characterized in that, The outer wall of the support ring (17) is in contact with the inner wall of the positioning seat (802), and the inner wall of the slot (803) is in contact with the outer wall of the insertion rod (804).

6. The flue gas desulfurization and denitrification treatment device according to claim 1, characterized in that, A sealing ring (19) is provided between the inner wall of the connecting seat (11) and the outer wall of the exhaust pipe (10).

7. The flue gas desulfurization and denitrification treatment device according to claim 1, characterized in that, The positioning block (902) engages with the locking block (903); the outer wall of the movable seat (907) is provided with a second threaded hole, which matches the second threaded rod (906).

8. The flue gas desulfurization and denitrification treatment device according to claim 3, characterized in that, The pusher (913) extends out of the dust collector (1) and has a first inclined surface; the outer wall of the pusher (913) has a second inclined surface, and the slide rod (912) is in contact with the second inclined surface; the bottom end of the vertical rod (911) has a third inclined surface, and the slide rod (912) is in contact with the third inclined surface; the bottom end of the limiting block (909) has a fourth inclined surface, and the top end of the vertical rod (911) is in contact with the fourth inclined surface; the end of the limiting block (909) extending out of the insertion rod (804) has a semi-circular surface.

Images