Flue gas desulfurization and denitrification device

Abstract

This application discloses a flue gas desulfurization and denitrification device, relating to the field of flue gas desulfurization and denitrification technology. It includes: a tower body, with support legs fixedly installed on the four corners of the tower body's bottom outer wall; and further includes: an inlet pipe, an outlet pipe, a reserved pipe, nozzles, a spraying assembly, a swinging assembly, and a scraper assembly. The inlet pipe is horizontally and fixedly installed at the bottom of one side of the tower body's outer wall; the outlet pipe is horizontally and fixedly installed at the top of the other side of the tower body's outer wall; the reserved pipe is horizontally and fixedly installed at the middle position of one side of the tower body's outer wall; there are two nozzles, each disposed within the tower body, with a water inlet hose fixedly installed at the interface of each nozzle. The beneficial effects of this application are: it achieves coordinated spraying through reciprocating movement, synchronous swinging, and overall rotation of the nozzles, forming irregular and overlapping spray paths, eliminating the regular gaps of fixed spraying, and improving the efficiency and effect of desulfurization and denitrification.

Description

Technical Field

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

[0002] Desulfurization and denitrification are core technologies for controlling air pollutant emissions and improving environmental quality. With increasingly stringent environmental standards, higher and higher requirements are being placed on the removal efficiency of sulfur dioxide and nitrogen oxides in industrial flue gas. Currently, mainstream wet flue gas desulfurization and denitrification technologies typically employ a counter-current spray tower structure. This involves spraying alkaline absorbent liquids such as lime water downwards from the top of the tower, while the flue gas to be treated flows upwards from the bottom. The gas and liquid phases react counter-currently within the tower, and the purified flue gas is discharged from the exhaust pipe at the top of the tower.

[0003] Most existing flue gas desulfurization and denitrification devices use fixed-installation nozzles for spraying, with multiple nozzles combined to cover the entire cross-section of the tower body. However, this fixed spraying method results in a relatively regular spray path and a relatively uniform distribution of gaps between spray droplets. When the flue gas rises at a high speed, a large amount of flue gas will escape directly from these gaps without fully contacting and reacting with the absorbent liquid, leading to a reduction in desulfurization and denitrification efficiency and affecting the flue gas treatment effect. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a flue gas desulfurization and denitrification device. Its advantages lie in: achieving coordinated spraying through reciprocating movement, synchronous oscillation, and overall rotation of the nozzles, forming irregular and overlapping spray paths, eliminating the regular gaps of fixed spraying, and improving the efficiency and effectiveness of desulfurization and denitrification.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a flue gas desulfurization and denitrification device, comprising: a tower body, wherein support legs are fixedly installed on the outer walls of the four corners of the bottom of the tower body, and further comprising: an inlet pipe, an outlet pipe, a reserved pipe, nozzles, a spraying assembly, a swinging assembly, and a scraper assembly; the inlet pipe is horizontally and fixedly installed at the bottom of one side of the outer wall of the tower body; the outlet pipe is horizontally and fixedly installed at the top of the other side of the outer wall of the tower body; the reserved pipe is horizontally and fixedly installed at the middle position of one side of the outer wall of the tower body; there are two nozzles, and the two nozzles are... Spray nozzles are respectively installed inside the tower body, and water inlet hoses are fixedly installed at the interfaces of the two spray nozzles respectively; the spraying assembly is installed on the inner wall of the top of the tower body to drive the two spray nozzles to move back and forth and spray lime water covering the entire cross-section of the tower body; there are two sets of swinging assemblies, and the two sets of swinging assemblies are respectively installed on one side of the two spray nozzles to drive them to swing synchronously when the spray nozzles move back and forth; the scraper assembly is installed inside the tower body to scrape off the lime water synchronously with the spraying assembly.

[0006] Preferably, the spraying assembly includes: a rotary motor, a rotating rod, a first mounting plate, four second mounting plates, two first connecting pipes, a first connecting hose, two pistons, two first insert rods, a reciprocating push assembly, and two sets of sliding assemblies. The rotary motor is fixedly installed at the center of the outer wall of the top of the tower body. The rotating rod is vertically arranged, and its top is rotatably installed at the center of the inner wall of the top of the tower body. The top of the rotating rod is fixedly installed to the output shaft of the rotary motor. The first mounting plate is horizontally fixedly installed at the bottom of the rotating rod. Two second mounting plates form a group, and four second mounting plates are respectively fixedly installed at the bottom of the first mounting plate. The sliding assembly is installed between the two mounting plates 2 in the two groups respectively. One end of each of the two connecting pipes 1 is horizontally fixed to one side of one of the mounting plates 2 in the two groups. The connecting hose 1 is fixedly installed between the other ends of the two connecting pipes 1. The two pistons are slidably sealed at one end of one of the connecting pipes 1 and the other end of the other connecting pipe 1 respectively. One side of each of the two insert rods 1 is fixedly installed on one side of the two pistons respectively. The other side of each of the two insert rods 1 passes through one side of the corresponding two mounting plates 2. The reciprocating pushing assembly is located between the mounting plate 1 and the other side of one of the insert rods 1.

[0007] Preferably, the reciprocating push assembly includes: a protrusion, a mounting block, and a rotating roller. The protrusion is horizontally positioned directly above the top of the mounting plate. The protrusion is fixedly installed to the inner wall of the top of the tower body via a mounting bracket. The protrusion is arranged in a symmetrical paddle shape. A limiting opening is provided on one side of the top of the mounting plate. The mounting block is vertically fixedly installed on the other side of one of the insert rods. The mounting block is located within the limiting opening. The rotating roller is horizontally rotatably mounted on the top of the mounting block. The rotating roller contacts the edge of the protrusion.

[0008] Preferably, the sliding assembly includes: a sliding rod, two sliding sleeves, and a connecting block. The sliding rod is horizontally fixedly installed between the two corresponding mounting plates on their adjacent sides. The two sliding sleeves are respectively slidably fitted onto the sliding rod. The connecting block is fixedly installed between the top of the outer circumferential walls of the two sliding sleeves. One side of the connecting block is fixedly installed to the other side of the corresponding insertion rod.

[0009] Preferably, the limiting opening is provided with an installation opening on the side away from the rotating rod. A sleeve is fixedly installed on the inner circumference of the installation opening. A rod is horizontally inserted into one side of the sleeve. The side of the rod away from the sleeve is fixedly installed with the mounting block. A buffer spring is fixedly installed between the other side of the rod and the inner wall of one side of the sleeve.

[0010] Preferably, the swing assembly includes: a third mounting plate, a second protrusion, a second sleeve, an insert plate, a support plate, a limiting rod, a second rotating roller, and a second buffer spring. The third mounting plate is vertically fixed to the bottom of the first mounting plate, and the two third mounting plates are respectively located on one side of the two sliding rods. The second protrusion is fixedly installed on the bottom of one side of the third mounting plate, and the second protrusion is wavy. The top outer wall of the second sleeve is hinged to the bottom of the corresponding two outer circumferential walls of the sliding sleeves via a torsion spring hinge. The insert plate is inserted into the... Inside the second sleeve, the second buffer spring is fixedly installed between the insert plate and the bottom inner wall of the second sleeve. The bottom of the insert plate is fixedly installed with the top of the nozzle. The support plate is vertically fixedly installed between one side of the outer circumference of the two corresponding sliding sleeves. A limit opening is opened on one side of the support plate. The limit rod is horizontally set in the limit opening. One side of the limit rod is hinged to one side of the insert plate. The second rotating roller is rotatably installed on the other side of the limit rod. The second rotating roller is in contact with the second protrusion.

[0011] Preferably, the scraper assembly includes: two mounting rings, several scrapers, and several connecting plates. The two mounting rings are rotatably mounted on the top and middle positions of the inner circumference of the tower body, respectively. The several scrapers are vertically arranged and fixedly mounted between the two mounting rings. The several connecting plates are arranged and fixedly mounted between the top of one of the mounting rings and the top edge of the first mounting plate.

[0012] Preferably, the top of the other mounting ring is tapered with a higher outer edge and a lower inner edge. The height of the outer circumference of the top of the other mounting ring gradually decreases towards the inner circumference. Several water screening holes are evenly distributed near the inner edge of the top of the other mounting ring. An annular smoke baffle is fixedly installed at the bottom of the other mounting ring near the outer circumference. The bottom of the annular smoke baffle is set with a smooth slope from the outer circumference to the inner circumference.

[0013] Preferably, a ring-shaped water collection chamber is horizontally arranged directly above the top of the mounting plate. The top of the water collection chamber penetrates the outer wall of the top of the tower body. The water collection chamber is rotatably installed with the tower body. Several support rods are fixedly arranged at equal intervals between the bottom outer wall of the water collection chamber and the top of the mounting plate. A protective shell is fixedly installed at the center of the top outer wall of the tower body. The protective shell is sleeved on the outside of the rotating motor. An installation shell is fixedly installed on the top outer wall of the tower body. A water inlet pipe is fixedly installed on one side of the installation shell. One side of the water inlet pipe penetrates the installation shell and extends into the water collection chamber. The ends of the two water inlet hoses away from the nozzle penetrate the top of the mounting plate and are fixedly installed on both sides of the bottom outer wall of the water collection chamber.

[0014] Preferably, the two mounting plates of one group are close to the edge of the mounting plate of one group, the line connecting the two mounting plates of one group is parallel to one of the radii of the mounting plate of one group, and the line connecting the two mounting plates of the other group passes through the center of the mounting plate of one group and is perpendicular to the line connecting the two mounting plates of one group.

[0015] Compared with the prior art, the beneficial effects of this application are as follows: (1) The present invention proposes a flue gas desulfurization and denitrification device, which is equipped with a rotating motor, a rotating rod, a mounting plate 1, four mounting plates 2, two connecting pipes 1, a connecting hose 1, two pistons, two insert rods 1, a reciprocating push assembly and two sets of sliding assemblies. The rotating motor drives the mounting plate 1 to rotate as a whole, and the reciprocating push assembly drives one side of the insert rod 1 to slide back and forth. Through the air pressure transmission of the closed chamber, the other side of the insert rod 1 moves synchronously in the opposite direction at the same speed. The two sets of sliding assemblies move in mutually perpendicular directions, so that the two nozzles form a trajectory of advancing and retreating, and cross-alignment, realizing the linkage spraying of the nozzle reciprocating movement and the overall rotation, forming an irregular and overlapping spray path.

[0016] (2) The present invention proposes a flue gas desulfurization and denitrification device, which is provided with a protrusion, a mounting block, a rotating roller, a sleeve, a plug rod, and a buffer spring. When the mounting plate rotates, it drives the rotating roller to roll along the edge of the fixed protrusion. The contour of the protrusion pushes the mounting block and the plug rod to slide back and forth in a straight line. The buffer spring keeps the rotating roller in contact with the protrusion through the plug rod, realizing automatic reset, buffering and vibration reduction, and ensuring the reciprocating sliding of the plug rod.

[0017] (3) The present invention proposes a flue gas desulfurization and denitrification device, which is provided with a mounting plate three, a protrusion two, a sleeve two, an insert plate, a support plate, a limiting rod, a rotating roller two and a buffer spring two. When the swing assembly moves with the sliding sleeve, the buffer spring two makes the rotating roller two always fit against the wave-shaped protrusion two. The rotating roller two rolls along the protrusion two and pushes the limiting rod to move horizontally, driving the insert plate to rotate and extend around the hinge point. With the help of the torsion spring, the nozzle can swing continuously back and forth, disrupting the spray path and eliminating regular gaps. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention.

[0019] Figure 2 This is a perspective view highlighting the interior of the tower body in this invention.

[0020] Figure 3 This is a perspective view highlighting the water collection tank in this invention.

[0021] Figure 4 For the present invention Figure 3 The 3D image highlighting point A is shown in the image.

[0022] Figure 5 This is a perspective view highlighting the support rod in this invention.

[0023] Figure 6 This is a perspective view highlighting the connecting pipe one in this invention.

[0024] Figure 7 This is a perspective view highlighting the sliding rod in this invention.

[0025] Figure 8 For the present invention Figure 7 The 3D diagram highlighting point B is shown in the image.

[0026] Figure 9 This is a perspective view of the second protrusion in this invention.

[0027] Figure 10 For the present invention Figure 9 The 3D image highlighting point C is shown in the image.

[0028] Figure 11 The present invention highlights a cross-sectional view of the piston.

[0029] Figure 12 The present invention highlights a cross-sectional view of a buffer spring.

[0030] Figure 13 The present invention highlights the cross-sectional view of the second buffer spring.

[0031] In the diagram: 1. Tower body; 10. Support leg; 11. Air inlet pipe; 12. Air outlet pipe; 13. Reserved pipe; 14. Nozzle; 15. Water inlet hose; 201. Rotating motor; 202. Rotating rod; 203. Mounting plate one; 204. Mounting plate two; 205. Connecting pipe one; 206. Connecting hose one; 207. Piston; 208. Insert rod one; 301. Protrusion one; 302. Mounting block one; 303. Rotating roller one; 401. Sliding rod; 402. Sliding sleeve; 403. Connecting block ; 501. Sleeve 1; 502. Insert rod 2; 503. Buffer spring 1; 601. Mounting plate 3; 602. Protrusion 2; 603. Sleeve 2; 604. Insert plate; 605. Support plate; 606. Limiting rod; 607. Rotating roller 2; 608. Buffer spring 2; 701. Mounting ring; 702. Scraper; 703. Connecting plate; 801. Annular smoke baffle; 901. Water collection tank; 902. Support rod; 903. Protective shell; 904. Mounting shell; 905. Water inlet pipe. Detailed Implementation

[0032] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0033] In the description of this application, it should be noted that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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 should not be construed as limiting the specific protection scope of this application.

[0034] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0035] One preferred embodiment of this application, such as Figures 1 to 13As shown, a flue gas desulfurization and denitrification device includes: a tower body 1, with support legs 10 fixedly installed on the outer walls of the four corners of the bottom of the tower body 1; and further includes: an inlet pipe 11, an outlet pipe 12, a reserved pipe 13, nozzles 14, a spraying assembly, a swinging assembly, and a scraper assembly; the inlet pipe 11 is horizontally fixedly installed at the bottom of one side of the outer wall of the tower body 1; the outlet pipe 12 is horizontally fixedly installed at the top of the other side of the outer wall of the tower body 1; the reserved pipe 13 is horizontally fixedly installed at the middle position of one side of the outer wall of the tower body 1; there are two nozzles 14, each spraying... The nozzles 14 are respectively installed inside the tower body 1, and the interfaces of the two nozzles 14 are respectively fixedly installed with water inlet hoses 15; the spraying assembly is installed on the inner wall of the top of the tower body 1 to drive the two nozzles 14 to move back and forth and spray lime water covering the entire cross-section inside the tower body 1; there are two sets of swinging assemblies, which are respectively set on one side of the two nozzles 14 to drive the nozzles 14 to swing synchronously when they move back and forth; the scraper assembly is set inside the tower body 1 to scrape the lime water synchronously with the spraying assembly.

[0036] The flue gas to be treated enters the bottom of the tower body 1 through the inlet pipe 11 and flows upward. The spraying assembly is activated, which drives the two nozzles 14 to move back and forth and rotate as a whole. At the same time, the swinging assembly moves synchronously with the nozzles 14 and drives them to swing, so that the two nozzles 14 form an irregular and overlapping spray path, eliminating the regular gaps of the fixed spray. The lime water comes into full contact with the upward-flowing flue gas to carry out the desulfurization and denitrification reaction. The purified flue gas is discharged from the outlet pipe 12. During this process, the scraper assembly rotates synchronously with the spraying assembly to continuously scrape off the lime water and solid scale adhering to the inner wall of the tower body 1.

[0037] Further reference Figures 2-3 and Figures 5-11The spraying assembly includes: a rotary motor 201, a rotating rod 202, a mounting plate 1 203, four mounting plates 204, two connecting pipes 205, a connecting hose 206, two pistons 207, two insert rods 208, a reciprocating push assembly, and two sets of sliding assemblies. The rotary motor 201 is fixedly installed at the center of the top outer wall of the tower body 1. The rotating rod 202 is vertically arranged, and its top is rotatably installed at the center of the top inner wall of the tower body 1. The top of the rotating rod 202 is fixedly installed to the output shaft of the rotary motor 201. The mounting plate 1 203 is horizontally fixedly installed at the bottom of the rotating rod 202. The two mounting plates 204 form a group, and the four mounting plates 204 are respectively fixedly installed at the bottom of the mounting plate 1 203. The two sets of sliding assemblies are respectively installed between the two mounting plates 204 in the two groups. One end of each of the two connecting pipes 205 is horizontally fixedly installed in the two groups. On one side of one of the mounting plates 204, a connecting hose 206 is fixedly installed between the other ends of two connecting pipes 205. Two pistons 207 are respectively slidably and sealingly installed at one end of one connecting pipe 205 and the other end of the other connecting pipe 205. One side of two insert rods 208 is fixedly installed on one side of the two pistons 207. The other side of the two insert rods 208 passes through one side of the corresponding two mounting plates 204. A reciprocating push assembly is set between the mounting plate 203 and the other side of one of the insert rods 208. The two mounting plates 204 in one group are close to the edge of the mounting plate 203. The line connecting the two mounting plates 204 in one group is parallel to one of the radii of the mounting plate 203. The line connecting the two mounting plates 204 in the other group passes through the center of the mounting plate 203 and is perpendicular to the line connecting the two mounting plates 204 in one group.

[0038] The starting motor 201 drives the rotating rod 202 to rotate at a constant speed around the central axis of the tower body 1. The rotating rod 202 drives the mounting plate 203 to rotate synchronously, which in turn drives the four mounting plates 204, two connecting pipes 205, connecting hoses 206, two pistons 207, two insert rods 208, reciprocating push assembly, and two sets of sliding assembly fixed to the bottom of the mounting plate 203 to perform a circular motion as a whole. During the rotation, the reciprocating push assembly cooperates with the fixed part of the tower body to continuously push one of the insert rods 208 to slide back and forth along its own axis. The insert rod 208 drives the piston 207 fixed to it to perform a sliding sealing movement in the corresponding connecting pipe 205. Since the two connecting pipes 205 are connected through the connecting hose 206 to form a completely closed gas chamber, the change in gas pressure in the chamber will synchronously push the other piston 207 and the piston fixed to it. The other connecting rod 208 slides back and forth in the opposite direction at the same speed, so that only one power input drives the two rods 208 to move synchronously in opposite directions. The two rods 208 drive two sets of sliding components to slide back and forth along their respective axes. One set of sliding components near the edge of the mounting plate 203 slides in a direction parallel to the radius of the mounting plate 203, and the other set of sliding components slides in a direction passing through the center of the mounting plate 203. The sliding directions of the two sets of sliding components are perpendicular to each other, so that the two nozzles 14 form a back-and-forth, cross-aligned reciprocating movement trajectory. With the overall circumferential rotation of the mounting plate 203, the two nozzles 14 simultaneously perform circular motion and cross-aligned reciprocating motion within the tower body 1. After rotating half a circle, the relative positions of the two nozzles are interchanged, and the spray path is reversed accordingly. Finally, a full cross-section coverage spray with irregular and overlapping paths is formed, avoiding the problem of uneven local spraying.

[0039] Further reference Figure 2 , Figure 5 , Figure 6 , Figure 10 as well as Figure 12 The reciprocating push assembly includes: a protrusion 301, a mounting block 302, and a rotating roller 303. The protrusion 301 is horizontally positioned directly above the top of the mounting plate 203. The protrusion 301 is fixedly installed to the inner wall of the top of the tower body 1 via a mounting bracket. The protrusion 301 is arranged in a symmetrical paddle shape. A limiting opening is provided on one side of the top of the mounting plate 203. The mounting block 302 is vertically fixedly installed on the other side of one of the insert rods 208. The mounting block 302 is located inside the limiting opening. The rotating roller 303 is horizontally rotatably mounted on the top of the mounting block 302. The rotating roller 303 is in contact with the edge of the protrusion 301.

[0040] The protrusion 301 is fixed to the inner wall of the top of the tower body 1 by the mounting bracket and remains stationary. The mounting plate 203 rotates around the central axis of the tower body 1 with the rotating rod 202, causing the mounting block 302 and the rotating roller 303 rotatably mounted on its top to perform synchronous circular motion. The rotating roller 303 is always in rolling contact with the edge of the protrusion 301. The mounting block 302 is restricted by the limiting opening and can only slide in a direction perpendicular to the rotating rod 202. When the rotating roller 303 rolls from the closest point of the protrusion 301 to the farthest point away from the rotating rod 202, the paddle-shaped edge of the protrusion 301 pushes... The rotating roller 303 and the mounting block 302 slide away from the rotating rod 202 along the limiting opening. When the rotating roller 303 rolls from the farthest point of the protrusion 301 to the nearest point, the edge of the protrusion 301 gradually falls back. The mounting block 302 slides back to its original position along the limiting opening towards the rotating rod 202. For each rotation of the mounting plate 203, the rotating roller 303 completes one complete roll along the edge of the protrusion 301, driving the mounting block 302 and the fixedly connected insertion rod 208 to complete one complete reciprocating slide, providing continuous linear power for the subsequent movement of the nozzle.

[0041] Further reference Figure 3 , Figure 7 , Figure 8 as well as Figure 11 The sliding assembly includes: a sliding rod 401, two sliding sleeves 402 and a connecting block 403. The sliding rod 401 is horizontally fixedly installed between the two corresponding mounting plates 204 on their respective sides. The two sliding sleeves 402 are slidably sleeved on the sliding rod 401. The connecting block 403 is fixedly installed between the top of the outer circumference of the two sliding sleeves 402. One side of the connecting block 403 is fixedly installed with the other side of the corresponding insertion rod 208.

[0042] The sliding rod 401 is horizontally fixed between the two corresponding mounting plates 204 and moves in a circular motion synchronously with the mounting plate 203. The reciprocating push component drives the insertion rod 208 to generate a reciprocating linear motion. This power is transmitted synchronously to the two sliding sleeves 402 through the connecting block 403 fixedly connected to the insertion rod 208. Under the drive of the connecting block 403, the two sliding sleeves 402 slide smoothly back and forth along the axis of the sliding rod 401. The sliding rod 401 provides precise linear guidance and stable support for the sliding sleeves 402. The sliding sleeves 402 then drive the nozzle 14 and the swing component fixedly installed below it to move back and forth synchronously along the axis of the sliding rod 401, realizing the linear reciprocating spraying action of the nozzle.

[0043] Further reference Figures 5-7 , Figure 10 and Figure 12An installation opening is provided on the side of the limiting opening away from the rotating rod 202. A sleeve 501 is fixedly installed on the inner circumference of the installation opening. A rod 502 is horizontally inserted into one side of the sleeve 501. The side of the rod 502 away from the sleeve 501 is fixedly installed with the mounting block 302. A buffer spring 503 is fixedly installed between the other side of the rod 502 and the inner wall of one side of the sleeve 501.

[0044] Initially, the buffer spring 503 is compressed, and the insert rod 502 applies a continuous pushing force to the mounting block 302, ensuring that the rotating roller 303 remains tightly fitted to the edge of the protrusion 301 without detachment. When the edge of the protrusion 301 pushes the mounting block 302 to slide away from the rotating rod 202, the mounting block 302 drives the insert rod 502 to slide into the sleeve 501, further compressing the buffer spring 503. The sleeve 501 serves as the base for the insert rod 502. 02 provides precise linear guidance. As the edge of protrusion 301 gradually falls back, buffer spring 503 releases elastic potential energy, pushing insert rod 502 to slide outward of sleeve 501, thereby driving mounting block 302 and rotating roller 303 to synchronously reset towards rotating rod 202. During this process, buffer spring 503 can also absorb the impact vibration generated when rotating roller 303 contacts protrusion 301, ensuring that the entire reciprocating motion is smooth and stable, and avoiding jamming.

[0045] Further reference Figures 7-9 and Figure 13 The swing assembly includes: mounting plate 3 601, protrusion 2 602, sleeve 2 603, insert plate 604, support plate 605, limiting rod 606, rotating roller 2 607, and buffer spring 2 608. Mounting plate 3 601 is vertically fixed to the bottom of mounting plate 1 203. The two mounting plates 3 601 are located on one side of the two sliding rods 401 respectively. Protrusion 2 602 is fixedly installed on the bottom of one side of mounting plate 3 601 and is wavy. The top outer wall of sleeve 2 603 is hinged to the bottom of the corresponding two sliding sleeves 402's circumferential outer walls via a torsion spring hinge. Insert plate 604... 604 is inserted into sleeve 603. Buffer spring 608 is fixedly installed between insert plate 604 and the bottom inner wall of sleeve 603. The bottom of insert plate 604 is fixedly installed with the top of nozzle 14. Support plate 605 is vertically fixedly installed between one side of the outer circumference of the corresponding two sliding sleeves 402. Limit opening 2 is opened on one side of support plate 605. Limit rod 606 is horizontally set in limit opening 2. One side of limit rod 606 is hinged to one side of insert plate 604. Rotating roller 607 is rotatably installed on the other side of limit rod 606. Rotating roller 607 contacts protrusion 602.

[0046] In the initial state, the insert plate 604 is vertical, and the second buffer spring 608 is compressed. The insert plate 604 pushes the limiting rod 606, causing the second rotating roller 607 to fit tightly against the edge of the fixed wavy protrusion 602. The entire swing assembly moves synchronously back and forth along the axis of the sliding rod 401 with the sliding sleeve 402. During the movement, the second rotating roller 607 rolls along the wavy edge of the second protrusion 602. The limiting opening on the support plate 605 restricts the limiting rod 606 to move horizontally only in a direction perpendicular to the sliding rod 401. When the protrusion of the second protrusion 602 pushes the second rotating roller 607 and the limiting rod 606 to move horizontally away from the mounting plate 601, the limiting rod 606 drives the insert plate 604 to move around the top of the sleeve 603. The torsion spring hinge point rotates, and at the same time, the insert plate 604 extends outward from the sleeve 603, stretching the buffer spring 608. When the rotating roller 607 rolls to the recess of the protrusion 602, the buffer spring 608 contracts and resets, causing the insert plate 604 to retract into the sleeve 603. At the same time, the torsion spring releases its elastic potential energy, causing the insert plate 604 to rotate in the opposite direction around the hinge point and reset, so that the rotating roller 607 always fits against the surface of the protrusion 602. Every time the sliding sleeve 402 completes a complete reciprocating movement, the rotating roller 607 completes a complete rolling along the wavy edge of the protrusion 602, causing the insert plate 604 and the bottom-fixed nozzle 14 to complete multiple continuous reciprocating swings, further disrupting the spray path and eliminating regular spray gaps.

[0047] Further reference Figures 2-5 The scraper assembly includes: two mounting rings 701, several scraper blades 702, and several connecting plates 703. The two mounting rings 701 are rotatably mounted on the top and middle positions of the inner circumference of the tower body 1, respectively. The several scraper blades 702 are vertically arranged and fixedly mounted between the two mounting rings 701. The several connecting plates 703 are arranged and fixedly mounted between the top of one of the mounting rings 701 and the top edge of the mounting plate 703.

[0048] When the mounting plate 203 rotates with the rotating rod 202, it transmits power to the top mounting ring 701 through several connecting plates 703, causing the top mounting ring 701 to rotate along the inner circumference of the tower body 1. The top mounting ring 701 drives the bottom mounting ring 701 to rotate synchronously through several vertically fixed scrapers 702, so that all scrapers 702 are in close contact with the inner wall of the tower body 1 to perform a circumferential scraping motion.

[0049] Further reference Figures 2-5The top of the other mounting ring 701 is tapered with a higher outer edge and a lower inner edge. The height of the outer circumference of the top of the other mounting ring 701 gradually decreases from the inner circumference. Several water screening holes are evenly opened at the position of the top of the other mounting ring 701 near the inner edge. An annular smoke baffle 801 is fixedly installed at the bottom of the other mounting ring 701 near the outer circumference. The bottom of the annular smoke baffle 801 is set with a smooth slope from the outer circumference to the inner circumference.

[0050] The lime water droplets, reaction residues, and flue gas dust scraped off by scraper 702 flow to the top surface of bottom mounting ring 701. Since the top surface of bottom mounting ring 701 is a cone shape with a higher outer surface and a lower inner surface, all liquid and solid particles will automatically collect along the inclined surface to the inner edge. When the collected continuous water flow passes through several water screening holes evenly opened on the inner edge, it is cut and dispersed into a large number of fine water droplets by the water screening holes, which drip downwards in a spray pattern, greatly increasing the contact area between the liquid and the flue gas. At the same time, when the upward-flowing flue gas encounters the annular smoke baffle 801 on the outer edge of the bottom of bottom mounting ring 701, it cannot rise directly along the inner wall of the tower. Instead, it is forced to flow along the smooth inclined surface of the annular smoke baffle 801 with a higher outer surface and a lower inner surface to the center area of ​​the tower. The flue gas flowing towards the center forms a sufficient countercurrent contact with the fine water droplets falling from the water screening holes, resulting in desulfurization and denitrification reactions. This avoids the problem of insufficient reaction when the flue gas directly contacts the continuous water flow flowing down the tower wall, further improving the flue gas purification effect.

[0051] Further reference Figures 1-3 and Figure 5 A ring-shaped water collection chamber 901 is horizontally arranged directly above the top of the mounting plate 203. The top of the water collection chamber 901 penetrates the top outer wall of the tower body 1. The water collection chamber 901 is rotatably installed with the tower body 1. Several support rods 902 are fixedly installed at equal intervals between the bottom outer wall of the water collection chamber 901 and the top of the mounting plate 203. A protective shell 903 is fixedly installed at the center of the top outer wall of the tower body 1. The protective shell 903 is sleeved on the outside of the rotating motor 201. An installation shell 904 is fixedly installed on the top outer wall of the tower body 1. A water inlet pipe 905 is fixedly installed on one side of the installation shell 904. One side of the water inlet pipe 905 penetrates the installation shell 904 and extends into the water collection chamber 901. The ends of two water inlet hoses 15 away from the nozzle 14 penetrate the top of the mounting plate 203 and the two sides of the bottom outer wall of the water collection chamber 901 and are fixedly installed.

[0052] Lime water is continuously injected into the annular water collection chamber 901 through the inlet pipe 905, which is fixedly installed on the outer wall of the top of the tower body 1, and then through the housing 904. The water collection chamber 901 is fixedly connected to the top of the mounting plate 203 by several equidistantly arranged support rods 902. When the rotating motor 201 drives the mounting plate 203 to rotate, the water collection chamber 901 rotates synchronously with the mounting plate 203 around the central axis of the tower body 1. The outlet end of the inlet pipe 905 is always located inside the water collection chamber 901, achieving continuous and uninterrupted water supply during the rotation process. The lime water in the collection tank 901 is continuously delivered to the two nozzles 14 below for spraying through two water inlet hoses 15 fixedly connected to the bottom sides. Since the collection tank 901 and the nozzles 14 rotate synchronously, the water inlet hoses 15 will not be tangled or pulled, ensuring a stable water supply. During this process, the protective shell 903, which is fitted over the rotating motor 201, isolates water vapor and dust, protecting the motor to operate normally. The housing 904 protects the rotating interface between the water inlet pipe 905 and the collection tank 901, preventing external impurities from entering the water supply system.

[0053] Working principle: The flue gas to be treated enters the bottom of the tower body 1 through the inlet pipe 11 and flows upward. Lime water is continuously injected into the annular water collection chamber 901 through the water inlet pipe 905 fixedly installed on the outer wall of the top of the tower body 1 and the housing 904. The water collection chamber 901 is fixedly connected to the top of the mounting plate 203 by several equidistantly arranged support rods 902. When the rotating motor 201 is started, it drives the rotating rod 202 to rotate at a constant speed around the central axis of the tower body 1. The rotating rod 202 drives the mounting plate 203 and all the components fixed on it to perform a synchronous overall circular motion. The water collection chamber 901 rotates synchronously with the mounting plate 203. The water outlet of the water inlet pipe 905 is always located inside the water collection chamber 901, realizing a continuous and uninterrupted water supply during the rotation process. The lime water in the water collection tank 901 is continuously delivered to the two nozzles 14 below for spraying through two water inlet hoses 15 fixedly connected to both sides of the bottom. During this process, the protective shell 903, which is fitted over the rotating motor 201, isolates water vapor and dust, protecting the motor's normal operation. The mounting shell 904 protects the rotating interface between the water inlet pipe 905 and the water collection tank 901, preventing external impurities from entering the water supply system. The protrusion 301 is fixed to the inner wall of the top of the tower body 1 by the mounting bracket and remains stationary. When the mounting plate 203 rotates, it drives the mounting block 302 and the rotating roller 303 mounted on its top to perform synchronous circular motion. In the initial state, the buffer spring 503 is in a compressed state, and the mounting block is compressed through the insertion rod 502. A continuous thrust is applied to the rotating roller 303, ensuring it remains tightly fitted against the edge of the protrusion 301. The mounting block 302 is restricted by the limiting opening to slide only in a direction perpendicular to the rotating rod 202. As the rotating roller 303 rolls from the closest point of the protrusion 301 to the farthest point away from the rotating rod 202, the paddle-shaped edge of the protrusion 301 pushes the rotating roller 303 and the mounting block 302 to slide away from the rotating rod 202 along the limiting opening. Simultaneously, the mounting block 302 drives the insertion rod 502 to slide into the sleeve 501, further compressing the buffer spring 503. The sleeve 501 provides precise linear guidance for the insertion rod 502. When the rotating roller 303 moves from the protrusion 301 to the farthest point away from the rotating rod 202, the paddle-shaped edge of the protrusion 301 pushes the rotating roller 303 and the mounting block 302 to slide along the limiting opening away from the rotating rod 202. As block 301 rolls from its furthest point to its closest point, the edge of protrusion 301 gradually falls back. The buffer spring 503 releases its elastic potential energy, pushing the insert rod 502 to slide outwards from the sleeve 501. This, in turn, causes mounting block 302 and rotating roller 303 to synchronously reset towards the rotating rod 202. Each rotation of mounting plate 203 completes one full roll along the edge of protrusion 301, driving mounting block 302 and its fixedly connected insert rod 208 to complete one full reciprocating slide. During this process, the buffer spring 503 also absorbs the impact vibration generated when rotating roller 303 contacts protrusion 301, ensuring a smooth and stable reciprocating motion and preventing jamming.The insert rod 208 drives the piston 207, which is fixedly connected to it, to slide and seal within the corresponding connecting pipe 205. Since the two connecting pipes 205 are connected by a connecting hose 206 to form a completely sealed gas chamber, changes in gas pressure within the chamber synchronously push the other piston 207 and the other insert rod 208, which is fixedly connected to it, to slide back and forth at the same speed in opposite directions. This achieves synchronous reverse movement of the two insert rods 208 with only one power input. The two insert rods 208 respectively drive two sets of sliding components to slide back and forth along their respective axes. The sliding rod 401 is horizontally fixed between the two corresponding mounting plates 204, and moves in a circular motion synchronously with the mounting plates 203. The reciprocating linear motion generated by the insert rod 208... Power is synchronously transmitted to the two sliding sleeves 402 via the connecting block 403, which is fixedly connected to the insert rod 208. Driven by the connecting block 403, the two sliding sleeves 402 synchronously and smoothly reciprocate along the axis of the sliding rod 401. The sliding rod 401 provides precise linear guidance and stable support for the sliding sleeves 402. The sliding sleeves 402 then drive the nozzles 14 and the swing assembly fixedly installed below them to reciprocate synchronously along the axis of the sliding rod 401. One set of sliding assemblies near the edge of the mounting plate 203 slides in a direction parallel to the radius of the mounting plate 203, while the other set slides in a direction passing through the center of the mounting plate 203. The sliding directions of the two sets of sliding assemblies are perpendicular to each other, causing the two nozzles 14 to move in a forward and backward, intersecting pattern. The misaligned reciprocating movement trajectory begins with the insert plate 604 in a vertical position and the second buffer spring 608 in a compressed state. The insert plate 604 pushes the limiting rod 606, causing the second rotating roller 607 to tightly adhere to the edge of the fixed wavy protrusion 602. The entire swing assembly reciprocates synchronously along the axis of the sliding rod 401 with the sliding sleeve 402. During this movement, the second rotating roller 607 rolls along the wavy edge of the second protrusion 602. The limiting opening on the support plate 605 restricts the limiting rod 606 to move horizontally only in a direction perpendicular to the sliding rod 401. When the protrusion of the second protrusion 602 pushes the second rotating roller 607 and the limiting rod 606 to move horizontally away from the mounting plate 601, the limiting rod 606 drives the insert plate 604 to rotate around the sleeve. The torsion spring hinge point at the top of cylinder 2 603 rotates, while the insert plate 604 extends outward from inside sleeve 2 603, stretching the buffer spring 2 608. When the rotating roller 2 607 rolls to the recess of protrusion 2 602, the buffer spring 2 608 contracts and resets, causing the insert plate 604 to retract into sleeve 2 603. At the same time, the torsion spring releases its elastic potential energy, causing the insert plate 604 to rotate in the opposite direction around the hinge point and reset, ensuring that the rotating roller 2 607 always adheres to the surface of protrusion 2 602. Each time the sliding sleeve 402 completes a full reciprocating movement, the rotating roller 2 607 completes a full roll along the wavy edge of protrusion 2 602, causing the insert plate 604 and the nozzle 14 fixed at the bottom to complete multiple continuous reciprocating swings, coordinating with the overall circumferential rotation of mounting plate 1 203.Two nozzles 14 simultaneously perform circular, reciprocating, and continuous oscillating motions within the tower body 1. After rotating half a circle, the relative positions of the two nozzles are interchanged, and the spray path is reversed accordingly. This ultimately forms a spray field that covers the entire cross-section, has no fixed dead angles, and features irregular and overlapping paths, eliminating the regular gaps of fixed spraying. The lime water and the upward-flowing flue gas come into full contact, resulting in a desulfurization and denitrification reaction. During this process, the mounting plate 203 transmits power to the top mounting ring 701 through several connecting plates 703, causing the top mounting ring 701 to rotate along the inner circumference of the tower body 1. The top mounting ring 701, through several vertically fixed scrapers 702, drives the bottom mounting ring 701 to rotate synchronously, causing all scrapers 702 to closely adhere to the inner wall of the tower body 1 and perform a circular scraping motion, continuously scraping away the lime water film, reaction-generated solid scale, and dust carried by the flue gas adhering to the inner wall of the tower body 1. The lime water droplets and reaction residue scraped off by the scrapers 702 are also removed. Slag and flue gas dust flow to the top surface of the bottom mounting ring 701. Because the top surface of the bottom mounting ring 701 is conical with a higher outer surface and a lower inner surface, all liquid and solid particles automatically collect along the inclined surface towards the inner edge. When the collected continuous water flow passes through several evenly spaced water-screening holes on the inner edge, it is cut and dispersed into numerous fine water droplets, which drip downwards in a spray pattern, significantly increasing the contact area between the liquid and the flue gas. Simultaneously, when the upward-flowing flue gas encounters the annular baffle plate 801 at the bottom outer edge of the bottom mounting ring 701, it cannot rise directly along the inner wall of the tower. Instead, it is forced to flow along the smooth inclined surface of the annular baffle plate 801 towards the center of the tower. The flue gas flowing towards the center forms a sufficient counter-current contact with the fine water droplets falling from the water-screening holes, resulting in a secondary desulfurization and denitrification reaction. This avoids the problem of insufficient reaction due to direct contact between the flue gas and the continuous water flow flowing down the tower wall, further improving the flue gas purification effect. Finally, the purified flue gas is discharged from the outlet pipe 12.

[0054] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A flue gas desulfurization and denitrification device, comprising: The tower body (1), wherein support legs (10) are fixedly installed on the outer walls of the four corners of the bottom of the tower body (1), is characterized in that it further includes: Air inlet pipe (11): The air inlet pipe (11) is horizontally fixedly installed at the bottom of the outer wall of one side of the tower body (1); Air outlet pipe (12): The air outlet pipe (12) is horizontally fixedly installed on the top of the outer wall of the other side of the tower body (1); Reserved pipe (13): The reserved pipe (13) is horizontally fixedly installed at the middle position of the outer wall of one side of the tower body (1); Nozzle (14): There are two nozzles (14), and the two nozzles (14) are respectively installed in the tower body (1). The interfaces of the two nozzles (14) are respectively fixedly installed with water inlet hoses (15). Spraying assembly: The spraying assembly is installed on the inner wall of the top of the tower body (1) to drive the two nozzles (14) to move back and forth and spray lime water covering the entire cross-section inside the tower body (1). Oscillating assembly: There are two sets of oscillating assemblies, which are respectively disposed on one side of the two nozzles (14) to drive the nozzles (14) to oscillate synchronously when they move back and forth. Scraper assembly: The scraper assembly is disposed inside the tower body (1) for scraping off lime water in sync with the spraying assembly.

2. The flue gas desulfurization and denitrification device as described in claim 1, characterized in that, The spraying assembly includes: a rotary motor (201), a rotating rod (202), a mounting plate 1 (203), four mounting plates 2 (204), two connecting pipes 1 (205), a connecting hose 1 (206), two pistons (207), two insert rods 1 (208), a reciprocating push assembly, and two sets of sliding assemblies. The rotary motor (201) is fixedly installed at the center of the top outer wall of the tower body (1). The rotating rod (202) is vertically arranged, and the top of the rotating rod (202) is rotatably installed at the center of the top inner wall of the tower body (1). The top of the rotating rod (202) is fixedly installed with the output shaft of the rotary motor (201). The mounting plate 1 (203) is horizontally fixedly installed at the bottom of the rotating rod (202). Two mounting plates 2 (204) form a group, and four mounting plates 2 (204) are respectively fixedly installed on the mounting plate 1 (205). At the bottom of 03), the two sets of sliding components are respectively installed between the two mounting plates (204) in the two sets. One end of the two connecting pipes (205) is respectively horizontally fixedly installed on one side of one of the mounting plates (204) in the two sets. The connecting hose (206) is fixedly installed between the other ends of the two connecting pipes (205). The two pistons (207) are respectively slidably sealed at one end of one connecting pipe (205) and the other end of the other connecting pipe (205). One side of the two insert rods (208) is respectively fixedly installed on one side of the two pistons (207). The other side of the two insert rods (208) respectively penetrates one side of the corresponding two mounting plates (204). The reciprocating push component is set between the mounting plate (203) and the other side of one of the insert rods (208).

3. The flue gas desulfurization and denitrification device as described in claim 2, characterized in that, The reciprocating push assembly includes: a protrusion (301), a mounting block (302), and a rotating roller (303). The protrusion (301) is horizontally positioned directly above the top of the mounting plate (203). The protrusion (301) is fixedly installed to the inner wall of the top of the tower body (1) via a mounting bracket. The protrusion (301) is arranged in a symmetrical paddle shape. A limiting opening is provided on one side of the top of the mounting plate (203). The mounting block (302) is vertically fixedly installed on the other side of one of the insert rods (208). The mounting block (302) is located inside the limiting opening. The rotating roller (303) is horizontally rotatably installed on the top of the mounting block (302). The rotating roller (303) is in contact with the edge of the protrusion (301).

4. The flue gas desulfurization and denitrification device as described in claim 2, characterized in that, The sliding assembly includes: a sliding rod (401), two sliding sleeves (402), and a connecting block (403). The sliding rod (401) is horizontally fixed between the two corresponding mounting plates (204) on their respective sides. The two sliding sleeves (402) are slidably sleeved on the sliding rod (401). The connecting block (403) is fixedly installed between the top of the outer circumferential walls of the two sliding sleeves (402). One side of the connecting block (403) is fixedly installed with the other side of the corresponding insertion rod (208).

5. The flue gas desulfurization and denitrification device as described in claim 3, characterized in that, The limiting opening is provided with an installation opening on the side away from the rotating rod (202). A sleeve (501) is fixedly installed on the inner circumference of the installation opening. A rod (502) is horizontally inserted into one side of the sleeve (501). The side of the rod (502) away from the sleeve (501) is fixedly installed with the mounting block (302). A buffer spring (503) is fixedly installed between the other side of the rod (502) and the inner wall of one side of the sleeve (501).

6. The flue gas desulfurization and denitrification device as described in claim 4, characterized in that, The swing assembly includes: mounting plate three (601), protrusion two (602), sleeve two (603), insert plate (604), support plate (605), limiting rod (606), rotating roller two (607), and buffer spring two (608). The mounting plate three (601) is vertically fixedly installed at the bottom of the mounting plate one (203). The two mounting plates three (601) are respectively located on one side of the two sliding rods (401). The protrusion two (602) is fixedly installed at the bottom of one side of the mounting plate three (601). The protrusion two (602) is wavy. The top outer wall of the sleeve two (603) is hinged to the bottom of the circumferential outer wall of the corresponding two sliding sleeves (402) through a torsion spring hinge. The insert plate (604) is inserted into the sleeve. Inside the sleeve two (603), the buffer spring two (608) is fixedly installed between the insert plate (604) and the bottom inner wall of the sleeve two (603). The bottom of the insert plate (604) is fixedly installed with the top of the nozzle (14). The support plate (605) is vertically fixedly installed between one side of the outer circumference of the corresponding two sliding sleeves (402). A limit opening two is opened on one side of the support plate (605). The limit rod (606) is horizontally set in the limit opening two. One side of the limit rod (606) is hinged to one side of the insert plate (604). The rotating roller two (607) is rotatably installed on the other side of the limit rod (606). The rotating roller two (607) is in contact with the protrusion two (602).

7. A flue gas desulfurization and denitrification device as described in claim 2, characterized in that, The scraper assembly includes: two mounting rings (701), several scraper blades (702), and several connecting plates (703). The two mounting rings (701) are rotatably mounted on the top and middle positions of the inner circumference of the tower body (1), respectively. The several scraper blades (702) are vertically arranged and fixedly mounted between the two mounting rings (701), and the several connecting plates (703) are arranged and fixedly mounted between the top of one of the mounting rings (701) and the top edge of the first mounting plate (203).

8. The flue gas desulfurization and denitrification device as described in claim 7, characterized in that, The top of the other mounting ring (701) is tapered with a higher outer edge and a lower inner edge. The height of the outer circumference of the top of the other mounting ring (701) gradually decreases towards the inner circumference. Several water screening holes are evenly provided at the top of the other mounting ring (701) near the inner edge. An annular smoke baffle (801) is fixedly installed at the bottom of the other mounting ring (701) near the outer circumference. The bottom of the annular smoke baffle (801) is set with a smooth slope from the outer circumference to the inner circumference.

9. A flue gas desulfurization and denitrification device as described in claim 2, characterized in that, A ring-shaped water collection chamber (901) is horizontally arranged directly above the top of the mounting plate (203). The top of the water collection chamber (901) penetrates the top outer wall of the tower body (1). The water collection chamber (901) is rotatably installed with the tower body (1). Several support rods (902) are fixedly installed at equal intervals between the bottom outer wall of the water collection chamber (901) and the top of the mounting plate (203). A protective shell (903) is fixedly installed at the center of the top outer wall of the tower body (1). The rotating motor (201) is sleeved on the outside of the tower body (1). The top outer wall of the tower body (1) is fixedly installed with an installation shell (904). A water inlet pipe (905) is fixedly installed on one side of the installation shell (904). One side of the water inlet pipe (905) extends through the installation shell (904) into the water collection tank (901). The two water inlet hoses (15) are fixedly installed at one end away from the nozzle (14) through the top of the installation plate (203) and the two sides of the bottom outer wall of the water collection tank (901).

10. A flue gas desulfurization and denitrification device as described in claim 2, characterized in that, Two of the mounting plates (204) in one group are close to the edge of the mounting plate (203). The line connecting the two mounting plates (204) in one group is parallel to one of the radii of the mounting plate (203). The line connecting the two mounting plates (204) in the other group passes through the center of the mounting plate (203) and is perpendicular to the line connecting the two mounting plates (204) in one group.

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