SCR denitration reactor

Abstract

The present application belongs to the field of reactor technology, and particularly relates to a SCR denitration reactor, which comprises a shell, an air inlet mechanism, a discharge mechanism, a multi-stage turbulence rectification mechanism, a self-rotation catalysis mechanism, a self-ash-removal guide mechanism and a catalyst inlet pipe. One side of the top of the shell is connected with the air inlet mechanism, and the bottom is connected with the discharge mechanism. The side wall of the shell, away from the air inlet mechanism, is connected with the catalyst inlet pipe. The multi-stage turbulence rectification mechanism is arranged in the upper part of the shell, the self-rotation catalysis mechanism is arranged in the middle part of the shell, and the self-ash-removal guide mechanism is arranged below the self-rotation catalysis mechanism. A motor is arranged in the center of the top of the shell, and the output end of the motor is connected with a driving main shaft. The driving main shaft penetrates through the shell and the multi-stage turbulence rectification mechanism, and is mechanically linked with the self-rotation catalysis mechanism. The fullness of the contact between the flue gas and the catalyst is increased, the problems of excessive consumption of the catalyst in local areas and low utilization rate of the catalyst in the remaining areas are avoided, and a large amount of waste is avoided.

Description

Technical Field

[0001] This invention is an SCR denitrification reactor, belonging to the field of reactor technology. Background Technology

[0002] Denitrification, the process of removing nitrogen oxides from combustion flue gas, has become a critical global issue in preventing environmental pollution. The two main technologies worldwide are SCR (Selective Catalytic Reduction) and SNCR (Synthetic Catalytic Reduction). Aside from the lower reaction temperature of SCR due to the use of a catalyst, these two technologies are largely similar. However, in terms of construction and operating costs, SCR requires at least several times, and sometimes more than ten times, the investment of SNCR. SCR is the most mature flue gas denitrification technology; it is a post-furnace denitrification method.

[0003] However, in actual use, the catalysts inside traditional SCR denitrification reactors are mostly fixed. In this case, the utilization of catalysts in different areas can vary greatly, which can easily lead to waste. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an SCR denitrification reactor.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] An SCR denitrification reactor includes a shell, an air inlet mechanism, an exhaust mechanism, a multi-stage turbulence rectification mechanism, a self-rotating catalytic mechanism, a self-cleaning ash guiding mechanism, and a catalyst inlet pipe. The air inlet mechanism is connected to one side of the top of the shell, and the exhaust mechanism is connected to the bottom. The catalyst inlet pipe is connected to the side wall of the shell away from the air inlet mechanism. The multi-stage turbulence rectification mechanism is located in the upper part of the shell, the self-rotating catalytic mechanism is located in the middle of the shell, and the self-cleaning ash guiding mechanism is located below the self-rotating catalytic mechanism. A motor is located at the center of the top of the shell, and the output end of the motor is connected to a drive shaft. The drive shaft passes through the shell and the multi-stage turbulence rectification mechanism and is mechanically linked to the self-rotating catalytic mechanism. Several guide strips are provided on the inner wall of the shell and below the multi-stage turbulence rectification mechanism.

[0007] Furthermore, the intake mechanism is equipped with a differential pressure sensor. The intake mechanism includes an intake pipe, a pipe connector, a filter, a micro actuator, a drive shaft, a first guide plate, and a second guide plate. The filter is located inside the pipe connector. The micro actuator is fixedly installed on the top of the intake pipe, and its output end is connected to the drive shaft, which passes through the intake pipe. Gear sections are symmetrically arranged at both ends of the drive shaft. The first guide plate is symmetrically arranged at the corner of the intake pipe, and the second guide plate is fixed in the middle. Both the first and second guide plates are provided with a plurality of swirling holes.

[0008] Furthermore, the gear section includes a right-angle magnetic coupling, and the right-angle magnetic coupling is provided with a high-temperature resistant sealing sleeve on the outside; the right-angle magnetic coupling includes a permanent magnet one, a permanent magnet two, and a driven shaft; the permanent magnet one is set on the end of the drive shaft, the permanent magnet two is provided on the side of the permanent magnet one away from the drive shaft, the driven shaft is provided at the center of the side of the permanent magnet two away from the permanent magnet one, and a gear is provided on the side of the driven shaft away from the permanent magnet two; the first guide plate is provided with a sandwich layer, and a through hole is provided in the middle. The inner sidewall of the sandwich layer is provided with a ring, and a plurality of inner gear teeth are evenly provided on the inner side of the ring. The outer sidewall of the ring is provided with outer gear teeth that mesh with the gear on the side close to the gear. The inner gear teeth are provided with gear opening and closing arms that mesh with the gear opening and closing arms, which are movably connected in the sandwich layer.

[0009] Furthermore, the multi-stage turbulence rectification mechanism includes, from top to bottom, a turbulence ball assembly, a rectifier grid, a movable turbulence plate, a secondary flow equalization plate, and a flow stabilizing orifice plate; the rectifier grid is in the shape of a grid bar with several conical protrusions on its surface; the movable turbulence plate is mechanically linked to the movable turbulence plate through an angle-adjustable part; the secondary flow equalization plate has uniformly distributed holes; and the flow stabilizing orifice plate has uniformly distributed small holes.

[0010] Furthermore, the spoiler ball assembly includes a U-shaped frame, which is fixedly installed on the upper wall inside the housing. A ball is located at the center of the bottom of the U-shaped frame and is embedded in the middle of the rectifier grid. The drive shaft passes through the middle of the U-shaped frame and the ball. Several vertical rods are evenly arranged on the U-shaped frame, and spoiler balls are provided at the top and bottom of the vertical rods. A return spring is sleeved on the vertical rod between the bottom wall of the U-shaped frame groove and the spoiler ball at the bottom.

[0011] Furthermore, the angle-adjustable part includes a fixed sleeve, the bottom of the sphere is embedded in the top of the fixed sleeve, and several cylinders are evenly distributed on the lower part of the outer wall of the fixed sleeve. A shaft three is provided inside the cylinder, and the end of the shaft three away from the cylinder is fixedly connected to the inner center position of the movable spoiler. A lifting sleeve is fitted on the lower part of the outer side of the fixed sleeve, and several grooves are evenly distributed on the upper part of the lifting sleeve, with cylinders located in the grooves. A connecting wedge is provided at the center position of the outer wall between adjacent grooves, and a shaft four is inserted into the connecting wedge. A support block is provided at the end of the shaft four away from the connecting wedge, and the support block is fixed to one side of the bottom inner side of the movable spoiler. An internal threaded sleeve is provided at the bottom of the lifting sleeve. A threaded structure that engages with the internal threaded sleeve is provided on the upper part of the drive shaft.

[0012] Furthermore, the self-rotating catalytic mechanism includes an auxiliary part, a connecting rod, and a catalyst mesh frame; the auxiliary part is movably connected to the catalyst mesh frame through symmetrically arranged connecting rods.

[0013] Furthermore, the auxiliary part includes a fixed plate 1, with the bottom of the drive spindle fixed at the top center of the fixed plate 1. Tracks are provided at the center of both sides of the bottom of the fixed plate 1, and matching sliders 1 are provided on the tracks. An impact plate is provided at the bottom of the slider 1, and a moving plate is provided at the bottom of the impact plate. A protrusion is provided at the center of the outer side of the moving plate, and a connecting end is provided at the center of the inner side of the moving plate. A shaft 1 is inserted through the connecting end on the side away from the moving plate. Side arms are provided at both ends of the shaft 1, and a shaft 2 is transversely inserted between the other sides of the side arms. A support block is fitted in the middle of the shaft 2, and a fixed plate 2 is provided on the other side of the support block. Both sides are fixed. An inverted U-shaped lifting plate is provided between the two plates. Elastic plates are provided on both sides of the bottom of the inverted U-shaped lifting plate, and the bottom of the elastic plates is fixed to the catalyst mesh frame. A reset rod is provided at the center of the groove in the inverted U-shaped lifting plate. A cylinder is provided at the center of the bottom of the fixed plate. The reset rod passes through the cylinder and is telescopically connected to the inside of the cylinder via a reset spring. Symmetrical baffles that cooperate with the impact plate are provided on both sides of the cylinder at the bottom of the fixed plate. Track grooves are provided at the center of both sides of the cylinder. A slider 2 that slides in cooperation with the track groove is provided on the inner wall of the groove in the inverted U-shaped lifting plate. The connecting rod is hinged to the outer side of the bottom of the moving plate.

[0014] Furthermore, the self-cleaning ash guiding mechanism includes a filter plate, a swirl blowing guide hood, a reverse blowing pipe, an ash collection hopper, and an ash discharge valve; the swirl blowing guide hood is inverted conical in shape, with several inclined guiding holes on its surface; one end of the reverse blowing pipe is connected to the swirl blowing guide hood tangentially, and the other end is connected to a compressed air machine or steam equipment; the filter plate is fixed above the swirl blowing guide hood; the bottom opening of the swirl blowing guide hood is connected to the ash collection hopper; an ash discharge valve is provided at the bottom discharge port of the ash collection hopper.

[0015] Furthermore, the emission mechanism includes a bottom cover, a Z-shaped exhaust pipe, and a dust-blocking baffle; the Z-shaped exhaust pipe prevents dust backflow.

[0016] Furthermore, the inner wall of the housing is coated with a high-temperature resistant heat-insulating coating.

[0017] The beneficial effects of this invention are:

[0018] A multi-stage turbulence rectification mechanism is placed between the air inlet and the catalyst layer, which is located inside the shell, to achieve uniform distribution of flue gas throughout the entire area. After the flue gas is uniformly distributed throughout the entire area, the diffusion mechanism works with the self-rotating catalyst mechanism in the middle of the shell to achieve dynamic swirl contact of the catalyst. The flue gas after reaction is cleaned in real time by a self-cleaning and flow guiding mechanism set in the lower part of the shell to avoid blockage. This increases the sufficiency of contact between the flue gas and the catalyst, avoiding the problem of excessive catalyst loss in some areas and low utilization rate in other areas, thus avoiding a lot of waste.

[0019] The self-rotating catalytic mechanism enables the catalyst to participate in the reaction throughout its entire range, eliminating localized losses and extending its service life.

[0020] The multi-stage turbulence rectification mechanism ensures a uniform flow field, and the resulting dynamics enhance the adequacy of the contact between the flue gas and the catalyst.

[0021] The self-cleaning dust guiding mechanism located in the lower part of the housing can perform real-time rotary dust removal to avoid blockage and eliminate the need for frequent manual cleaning.

[0022] Compared to existing structures, this design solves the problems of catalyst fixation, low utilization, and severe localized losses in traditional SCR reactors; it achieves uniform flue gas distribution, dynamic rotary shearing contact, self-cleaning and anti-clogging, and maintenance-free operation; it improves denitrification efficiency, extends catalyst life, and reduces operating costs; the catalyst participates in the reaction throughout the entire process, eliminating localized overload waste; at the same time, the contact between flue gas and catalyst is more thorough; and the reverse rotary blowing provides real-time cleaning, eliminating the need for manual disassembly and cleaning; it reduces the frequency of catalyst replacement, reduces waste, and saves energy. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a general exterior elevation view of an SCR denitrification reactor according to the present invention;

[0025] Figure 2 This is a schematic diagram of the overall internal structure of an SCR denitrification reactor according to the present invention;

[0026] Figure 3 This is a schematic diagram of the internal structure of the air inlet pipe of an SCR denitrification reactor according to the present invention;

[0027] Figure 4 This is a schematic diagram of a right-angle magnetic coupler structure for an SCR denitrification reactor according to the present invention;

[0028] Figure 5 This is a schematic diagram of the gear section structure of an SCR denitrification reactor according to the present invention;

[0029] Figure 6 This is a schematic diagram of the multi-stage turbulence rectification mechanism of an SCR denitrification reactor according to the present invention;

[0030] Figure 7 This is a schematic diagram of the turbulence ball assembly structure of an SCR denitrification reactor according to the present invention;

[0031] Figure 8 This is a schematic diagram of the angle-adjustable section of an SCR denitrification reactor according to the present invention;

[0032] Figure 9 This is a schematic diagram of the self-rotating catalytic mechanism of an SCR denitrification reactor according to the present invention;

[0033] Figure 10 This is a schematic diagram of the auxiliary structure of an SCR denitrification reactor according to the present invention.

[0034] In the diagram, 1. Housing; 2. Intake mechanism; 201. Intake pipe; 202. Pipe connector; 203. Filter screen; 204. Miniature actuator; 205. Drive shaft; 206. First guide plate; 207. Second guide plate; 208. Swirl hole; 209. Right-angle magnetic coupling; 211. Driven shaft; 212. Gear; 213. Through hole; 214. Ring; 215. Inner gear tooth; 216. Outer gear tooth; 217. Gear opening / closing arm; 218. Permanent magnet. Body 1; 219. Permanent Magnet 2; 3. Emission Mechanism; 301. Bottom Cover; 302. Z-shaped Exhaust Pipe; 303. Dust Barrier Plate; 4. Multi-stage Turbulence Rectification Mechanism; 401. Rectifier Grid Plate; 402. Movable Turbulence Plate; 403. Secondary Flow Equalizer Plate; 404. Flow Stabilizing Orifice Plate; 405. Turbulence Ball Assembly; 406. U-shaped Frame; 407. Sphere; 408. Vertical Rod; 409. Turbulence Ball; 410. Return Spring; 411. Fixing Sleeve; 412. Circular 413. Column; 414. Shaft 3; 415. Lifting sleeve; 416. Groove; 417. Connecting inclined block; 418. Shaft 4; 419. Support block; 420. Internal threaded sleeve; 420. Threaded structure; 5. Self-rotating catalytic mechanism; 501. Auxiliary part; 502. Connecting rod; 503. Catalyst mesh frame; 504. Fixing plate 1; 505. Track; 506. Slider 1; 507. Impact plate; 508. Moving plate; 509. Protrusion; 510. Connecting end; 511. Side arm; 512. Support block; 513. Fixed plate two; 514. Inverted U-shaped lifting plate; 515. Elastic sheet; 516. Reset rod; 517. Cylinder body; 518. Baffle; 519. Track groove; 6. Self-cleaning ash guiding mechanism; 601. Filter plate; 602. Swirl blowing guide hood; 603. Reverse blowing pipe; 604. Ash collection hopper; 605. Inclined guide hole; 7. Catalyst inlet pipe; 8. Motor; 9. Drive spindle; 10. Guide convex strip. 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] Please see Figures 1-10This invention provides a SCR denitrification reactor technical solution, including a shell 1, an air inlet mechanism 2, an exhaust mechanism 3, a multi-stage turbulence rectification mechanism 4, a self-rotating catalytic mechanism 5, a self-cleaning and flow guiding mechanism 6, and a catalyst inlet pipe 7; the air inlet mechanism 2 is connected to one side of the top of the shell 1, and the exhaust mechanism 3 is connected to the bottom; the catalyst inlet pipe 7 is connected to the side wall of the shell 1 away from the air inlet mechanism 2; the multi-stage turbulence rectification mechanism 4 is located in the upper part of the shell 1, the self-rotating catalytic mechanism 5 is located in the middle of the shell 1, and the self-cleaning and flow guiding mechanism 6... 6 is located below the self-rotating catalytic mechanism 5; a motor 8 is provided at the top center of the housing 1, and the output end of the motor 8 is connected to a drive shaft 9. The drive shaft 9 passes through the housing 1 and the multi-stage turbulence rectification mechanism 4, and is mechanically linked with the self-rotating catalytic mechanism 5. A high-temperature graphite mechanical seal is provided at the point where the drive shaft 9 passes through the housing 1. A heat-insulating bushing and rolling bearing are provided at the point where the multi-stage turbulence rectification mechanism 4 and the main shaft cooperate to prevent flue gas leakage and main shaft shaking; a number of guide strips 10 are provided on the inner wall of the housing 1 and below the multi-stage turbulence rectification mechanism 4.

[0037] See Figures 2-5 The intake mechanism 2 is equipped with a differential pressure sensor. The intake mechanism 2 includes an intake pipe 201, a pipe connector 202, a filter screen 203, a micro-driver 204, a drive shaft 205, a first guide plate 206, and a second guide plate 207. The filter screen 203 is located inside the pipe connector 202. The micro-driver 204 is fixedly installed on the top of the intake pipe 201, and its output end is connected to the drive shaft 205. The drive shaft 205 passes through the intake pipe 201, and gear sections are symmetrically arranged at both ends. The first guide plate 206 is symmetrically arranged at the corners of the intake pipe 201, and the second guide plate 207 is fixed in the middle. Both the first guide plate 206 and the second guide plate 207 have several swirling holes 208. The gear section includes a right-angle magnetic coupling 209, which has a high-temperature resistant sealing sleeve. The right-angle magnetic coupling 209 includes a permanent magnet. The drive shaft 205 consists of a first part 218, a second part 219, and a driven shaft 211. The first part 218 is sleeved on the end of the drive shaft 205. The second part 219 is located on the side of the first part 218 away from the drive shaft 205. The driven shaft 211 is located at the center of the side of the second part 219 away from the first part 218. A gear 212 is located on the side of the driven shaft 211 away from the second part 219. The first guide plate 206 has a sandwich structure and a through hole 213 in the middle. The inner wall of the interlayer is provided with a ring 214, and a number of inner gear teeth 215 are evenly provided on the inner side of the ring 214. The outer wall of the ring 214 is provided with an outer gear tooth 216 that meshes with the gear 212 on the side close to the gear 212. The inner gear teeth 215 are provided with a gear opening and closing arm 217 that meshes with the gear opening and closing arm 217. The gear opening and closing arm 217 is movably connected in the interlayer. The side of the gear opening and closing arm 217 away from the through hole 213 is provided with an elastic reset member. The other end of the elastic reset member is fixed to the inner wall of the interlayer.

[0038] Two permanent magnets are installed on the motor end and the driven end, respectively. The motor end is connected to permanent magnet 218 through the drive shaft 205, and the driven end is connected to permanent magnet 219 through the driven shaft 211. Under the interaction of the magnetic fields, a strong thrust and pull force of attraction and repulsion are generated, which successfully completes the torque output and realizes the contactless transmission of torque. One drive wheel of the right-angle magnetic coupler can be paired with one driven wheel, or multiple driven wheels can be equipped to drive simultaneously, realizing a transmission structure of one to four. The right-angle magnetic coupler relies entirely on magnetic force to realize torque transmission. There is no mechanical contact or friction, no noise or oil stains, etc. It can realize synchronous transmission within the load, with high efficiency, effectively reducing energy loss, and can realize reciprocating transmission.

[0039] See Figures 6-8 The multi-stage turbulence rectification mechanism 4 includes, from top to bottom, a turbulence ball group 405, a rectifier grid plate 401, a movable turbulence plate 402, a secondary flow equalization plate 403, and a flow stabilizing orifice plate 404; the rectifier grid plate 401 is grid-shaped with several conical protrusions on its surface, which makes it difficult for dust to adhere and achieves self-cleaning; the movable turbulence plate 402 is mechanically linked to the movable turbulence plate 403 through an angle adjustable part; the secondary flow equalization plate 403 has uniformly distributed holes, and the flow stabilizing orifice plate 404 has uniformly distributed small holes.

[0040] The spoiler ball assembly 405 includes a U-shaped frame 406, which is fixedly installed on the upper wall inside the housing 1. A ball 407 is provided at the center of the bottom of the U-shaped frame 406. The ball 407 is embedded in the middle of the rectifier grid plate 401. The drive shaft 9 passes through the middle of the U-shaped frame 406 and the ball 407. Several vertical rods 408 are evenly provided on the U-shaped frame 406. Spoiler balls 409 are provided at the top and bottom of the vertical rods 408. A return spring 410 is sleeved on the vertical rod 408 between the bottom wall of the groove in the U-shaped frame 406 and the bottom spoiler ball 409.

[0041] The angle-adjustable part includes a fixed sleeve 411, with the bottom of the ball 407 embedded in the top of the fixed sleeve 411. A plurality of cylinders 412 are evenly distributed on the lower part of the outer wall of the fixed sleeve 411. A shaft 413 is provided inside each cylinder 412, and one end of the shaft 413 away from the cylinder 412 is fixedly connected to the inner center of the movable spoiler 402. A lifting sleeve 414 is fitted onto the lower outer part of the fixed sleeve 411. A plurality of grooves 415 are evenly distributed on the upper part of the lifting sleeve 414. The column 412 is located in the groove 415; a connecting wedge 416 is provided at the center of the outer wall between adjacent grooves 415, a shaft 417 is inserted in the connecting wedge 416, a support block 418 is provided at the end of the shaft 417 away from the connecting wedge 416, and the support block 418 is fixed to one side of the bottom inner side of the movable spoiler 402; the bottom of the lifting sleeve 414 is provided with an internal threaded sleeve 419; the upper part of the drive main shaft 9 is provided with a threaded structure 420 that is threaded with the internal threaded sleeve 419.

[0042] See Figures 7-8 The self-rotating catalytic mechanism 5 includes an auxiliary part 501, a connecting rod 502, and a catalyst mesh frame 503. The auxiliary part 501 is movably connected to the catalyst mesh frame 503 via symmetrically arranged connecting rods 502. The auxiliary part 501 includes a fixed plate 504. The bottom of the drive shaft 9 is fixed at the top center of the fixed plate 504. Tracks 505 are provided at the center of both sides of the bottom of the fixed plate 504. Matching sliders 506 are provided on the tracks 505. Impact plates 507 are provided at the bottom of sliders 506. Moving plates 508 are provided at the bottom of impact plates 507. A protrusion 509 is provided at the center of the outer side of the moving plate 508. A connecting end 510 is provided at the center of the inner side of the moving plate 508. A shaft 1 is inserted through the side of the connecting end 510 away from the moving plate 508. Side arms 511 are provided at both ends of the shaft 1. A shaft 2 is transversely inserted between the other sides of the side arms 511. A support block 512 is sleeved in the middle of the shaft 2. On the other side, there is a second fixed plate 513, and between the two fixed plates 513, there is an inverted U-shaped lifting plate 514. On both sides of the bottom of the inverted U-shaped lifting plate 514, there are elastic plates 515. The bottom of the elastic plates 515 is fixed to the catalyst mesh frame 503. A reset rod 516 is provided in the center of the groove of the inverted U-shaped lifting plate 514. A cylinder 517 is provided at the center of the bottom of the first fixed plate 504. The reset rod 516 passes through the cylinder 517 and is telescopically connected to the inside of the cylinder 517 through a reset spring. On both sides of the cylinder 517, there are baffles 518 that cooperate with the impact plate 507 at the bottom of the first fixed plate 504. On both sides of the cylinder 517, there are track grooves 519 at the center. The inner wall of the groove of the inverted U-shaped lifting plate 514 is provided with a slider 519 that slides in cooperation with the track groove 519. The connecting rod 502 is hinged to the outside of the bottom of the moving plate 508. The impact vibration generated by the self-rotating catalyst mechanism 5 is an elastic collision to avoid damage to the shell 1.

[0043] See Figure 2 The self-cleaning dust guiding mechanism 6 includes a filter plate 601, a vortex blowing guide hood 602, a reverse blowing pipe 603, a dust collection hopper 604, and a dust discharge valve. The vortex blowing guide hood 602 is inverted conical in shape, with several inclined guiding holes 605 on its surface. One end of the reverse blowing pipe 603 is connected to the vortex blowing guide hood 602 tangentially, and the other end is connected to a compressed air machine or steam equipment. The filter plate 601 is fixed above the vortex blowing guide hood 602. The bottom opening of the vortex blowing guide hood 602 is connected to the dust collection hopper 604. A dust discharge valve is provided at the bottom outlet of the dust collection hopper 604. The reverse tangential vortex blowing forms a vortex field, blowing upwards to sweep the bottom surface of the catalyst, causing the dust to fall into the dust collection hopper 604 under the action of centrifugal force and gravity.

[0044] The emission mechanism 3 includes a bottom cover 301, a Z-shaped exhaust pipe 302, and a dust-blocking baffle 303; the Z-shaped exhaust pipe 302 prevents dust backflow; the inner wall of the housing 1 is coated with a high-temperature resistant heat-insulating coating; the bottom cover 301 seals the bottom of the housing 1 for easy maintenance; the Z-shaped exhaust pipe 302 prevents dust backflow and ensures stable emission of purified flue gas; the dust-blocking baffle 303 further intercepts residual dust to avoid contaminating downstream equipment.

[0045] The workflow is as follows:

[0046] The catalyst is loaded into the catalyst mesh frame 503 through the catalyst inlet pipe 7;

[0047] The flue gas is filtered, guided, and dispersed by the air intake mechanism 2 before entering the housing 1;

[0048] The multi-stage turbulence rectification mechanism 4 uniformly rectifies the flue gas;

[0049] Motor 8 drives main shaft 9 to rotate and vibrate the catalytic mechanism;

[0050] Dynamic contact denitrification of flue gas with catalyst;

[0051] The self-cleaning mechanism synchronously blows dust, and the dust falls into the dust collection hopper 604 for discharge.

[0052] The clean gas is stably discharged through the emission mechanism 3.

[0053] Specifically:

[0054] During use, flue gas flows in through the inlet pipe 201, passes through the filter screen 203 to filter impurities, and activates the micro-drive 204 to rotate the drive shaft 205. The drive shaft 205 drives the right-angle magnetic coupling 209 connected at both ends to rotate, which in turn drives the driven shaft 211. The driven shaft 211 drives the gear 212 connected at its end, which in turn drives the outer gear teeth 216 on one side of the outer wall of the ring 214. The protruding parts on both sides of the ring 214 are embedded in the annular grooves provided on the inner wall of the interlayer. After the ring 214 rotates... The inner gear teeth 215 drive the gear opening and closing arm 217 to rotate. The gear opening and closing arm 217 is a guide vane. The gear opening and closing arm 217 opens and closes synchronously. After the through hole 213 opens and closes through the gear opening and closing arm 217, it disperses the flue gas entering the interior, thereby controlling the air intake state. The flue gas passes through the second guide plate 207 and then passes through the first guide plate 206 again to enter the housing 1. After the flue gas passes through the swirl holes 208 of the first guide plate 206 and the second guide plate 207, it forms a swirling flow, which improves the subsequent flow uniformity effect.

[0055] The flue gas passes through the multi-stage turbulence rectification mechanism 4 to form a uniform vertical downward airflow. The flue gas first passes through the rectifier grid plate 401, which initially disperses the intake vortex. Then it passes through the movable turbulence plate 402 to change the airflow direction and eliminate flow deviation. Subsequently, it passes through the secondary flow equalization plate 403 to make the flue gas vertically downward and uniformly distributed. Finally, it passes through the flow stabilizing orifice plate 404 to ensure that the flue gas enters the lower catalytic layer at a stable flow rate.

[0056] When the motor 8 is started, it drives the drive shaft 9 to rotate. The drive shaft 9 drives the fixed plate 504 to rotate, and the fixed plate 504 drives the lower auxiliary part 501 to rotate. In its original state, the return spring inside the cylinder 517 always keeps the moving plate 508 against the inner wall of the housing 1. After the drive shaft 9 rotates, the protrusion 509 on the outer side of the moving plate 508 hits the guide protrusion 10 and is squeezed towards the center. The moving plate 508 pushes the impact plate 507 to hit the baffle 518. The vibration generated by the impact is transmitted to the inverted U-shaped lifting plate 514. The vibration force received by the inverted U-shaped lifting plate 514 is output to the elastic sheet 515. The elastic sheet 515 then transmits the vibration force to the catalyst mesh frame 503. The catalyst mesh frame 503 is a hollow frame filled with honeycomb catalyst. After the moving plate 508 is squeezed, the connecting rod 502 drives the catalyst mesh frame 503 below to shake, so as to achieve loosening and uniform contact of the catalyst.

[0057] External compressed air is injected tangentially into the swirl blowing guide hood 602 through the reverse blowing pipe 603 to form a swirl blowing airflow. The airflow blows upward and in the opposite direction to sweep the bottom surface of the catalyst, stripping off the dust. The dust falls into the bottom ash collection hopper 604 under the action of gravity and airflow, and is periodically discharged by the ash discharge valve.

[0058] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An SCR denitrification reactor, characterized in that, Includes a housing (1), an air intake mechanism (2), an exhaust mechanism (3), a multi-stage turbulence rectification mechanism (4), a self-rotating catalytic mechanism (5), a self-cleaning ash guiding mechanism (6), and a catalyst inlet pipe (7); The top side of the housing (1) is connected to the air intake mechanism (2), and the bottom side is connected to the exhaust mechanism (3); the side wall of the housing (1) away from the air intake mechanism (2) is connected to the catalyst inlet pipe (7); the multi-stage turbulence rectification mechanism (4) is located in the upper part of the housing (1), the self-rotating catalytic mechanism (5) is located in the middle part of the housing (1), and the self-cleaning ash guiding mechanism (6) is located below the self-rotating catalytic mechanism (5); The top center of the housing (1) is provided with a motor (8), the output end of the motor (8) is connected to a drive shaft (9), the drive shaft (9) passes through the housing (1) and the multi-stage turbulence rectification mechanism (4), and is mechanically linked with the self-rotating catalytic mechanism (5); a number of guide strips (10) are provided on the inner wall of the housing (1) and below the multi-stage turbulence rectification mechanism (4).

2. The SCR denitrification reactor according to claim 1, characterized in that, The intake mechanism (2) is equipped with a differential pressure sensor. The intake mechanism (2) includes an intake pipe (201), a pipe joint (202), a filter screen (203), a micro driver (204), a drive shaft (205), a first guide plate (206), and a second guide plate (207). The filter screen (203) is located inside the pipe joint (202). The micro driver (204) is fixedly installed on the top of the intake pipe (201). The output end of the micro driver (204) is connected to the drive shaft (205). The drive shaft (205) passes through the intake pipe (201). Gears are symmetrically arranged at both ends of the drive shaft (205). The first guide plate (206) is symmetrically arranged at the corner of the intake pipe (201), and the second guide plate (207) is fixed in the middle. Both the first guide plate (206) and the second guide plate (207) are provided with a number of swirling holes (208).

3. The SCR denitrification reactor according to claim 2, characterized in that, The gear unit includes a right-angle magnetic coupling (209), and the right-angle magnetic coupling (209) is provided with a high-temperature resistant sealing sleeve on the outside; the right-angle magnetic coupling (209) includes permanent magnet one (218), permanent magnet two (219), and driven shaft (211). A permanent magnet 1 (218) is sleeved on the end of the drive shaft (205). A permanent magnet 2 (219) is provided on the side of the permanent magnet 1 (218) away from the drive shaft (205). A driven shaft (211) is provided at the center of the side of the permanent magnet 2 (219) away from the permanent magnet 1 (218). A gear (212) is provided on the side of the driven shaft (211) away from the permanent magnet 2 (219). The first guide plate (206) has a sandwich layer with a through hole (213) in the middle. The inner side wall of the sandwich layer has a ring (214). The inner side of the ring (214) has a number of inner gear teeth (215) evenly distributed. The outer side of the ring (214) near the gear (212) has an outer gear tooth (216) that meshes with the gear (212). The inner gear teeth (215) have a meshing gear opening and closing arm (217). The gear opening and closing arm (217) is movably connected in the sandwich layer. The side of the gear opening and closing arm (217) away from the through hole (213) has an elastic reset member. The other end of the elastic reset member is fixed to the inner wall of the sandwich layer.

4. The SCR denitrification reactor according to claim 1, characterized in that, The multi-stage turbulence rectification mechanism (4) includes, from top to bottom, a turbulence ball group (405), a rectifier grid plate (401), a movable turbulence plate (402), a secondary flow equalization plate (403), and a flow stabilizing orifice plate (404); the rectifier grid plate (401) is in the shape of a grid bar, and has several conical protrusions on its surface, which makes it difficult for dust to adhere and achieves self-cleaning; the movable turbulence plate (402) is mechanically linked with the movable turbulence plate (402) through an angle adjustable part, the secondary flow equalization plate (403) has uniformly distributed holes, and the flow stabilizing orifice plate (404) has uniformly distributed small holes.

5. An SCR denitrification reactor according to claim 4, characterized in that, The spoiler ball assembly (405) includes a U-shaped frame (406), which is fixedly installed on the upper wall of the housing (1). A ball (407) is provided at the center of the bottom of the U-shaped frame (406), and the ball (407) is embedded in the middle of the rectifier grid plate (401). The drive shaft (9) passes through the middle of the U-shaped frame (406) and the ball (407). Several vertical rods (408) are evenly provided on the U-shaped frame (406). Spoiler balls (409) are provided at the top and bottom of the vertical rods (408). A return spring (410) is sleeved between the bottom wall of the groove of the U-shaped frame (406) and the bottom spoiler ball (409) on the vertical rod (408). The angle-adjustable part includes a fixed sleeve (411), the bottom of a sphere (407) is embedded in the top of the fixed sleeve (411), and a plurality of cylinders (412) are evenly arranged on the lower part of the outer wall of the fixed sleeve (411). A shaft three (413) is provided inside the cylinder (412), and one end of the shaft three (413) away from the cylinder (412) is fixedly connected to the inner center position of the movable spoiler (402). A lifting sleeve (414) is fitted on the lower part of the outer side of the fixed sleeve (411), and a plurality of grooves (415) are evenly arranged on the upper part of the lifting sleeve (414). 412) Located in the groove (415); a connecting inclined block (416) is provided at the center of the outer wall between adjacent grooves (415), a shaft four (417) is inserted in the connecting inclined block (416), a support block (418) is provided at the end of the shaft four (417) away from the connecting inclined block (416), and the support block (418) is fixed on one side of the bottom inner side of the movable spoiler (402); the bottom of the lifting sleeve (414) is provided with an internal thread sleeve (419); the upper part of the drive spindle (9) is provided with a threaded structure (420) that is threaded with the internal thread sleeve (419).

6. The SCR denitrification reactor according to claim 1, characterized in that, The self-rotating catalytic mechanism (5) includes an auxiliary part (501), a connecting rod (502), and a catalyst mesh frame (503); the auxiliary part (501) is movably connected to the catalyst mesh frame (503) through the symmetrically arranged connecting rods (502).

7. An SCR denitrification reactor according to claim 6, characterized in that, The auxiliary part (501) includes a fixed plate (504), the bottom of the drive spindle (9) is fixed at the top center of the fixed plate (504), and the bottom of the fixed plate (504) is provided with rails (505) at the center of both sides. The rails (505) are provided with matching sliders (506), the bottom of the sliders (506) is provided with impact plates (507), the bottom of the impact plates (507) is provided with moving plates (508), the center of the outer side of the moving plates (508) is provided with protrusions (509), the center of the inner side of the moving plates (508) is provided with connecting ends (510), the side of the connecting ends (510) away from the moving plates (508) is provided with shafts, both ends of shafts are provided with side arms (511), the other side of the side arms (511) is provided with shafts, the middle of shafts is provided with support blocks (512), the other side of the support blocks (512) is provided with fixed plates (513), and the two fixed plates (513) are provided with support blocks (512). An inverted U-shaped lifting plate (514) is provided between 513. An elastic sheet (515) is provided on both sides of the bottom of the inverted U-shaped lifting plate (514). The bottom of the elastic sheet (515) is fixed on the catalyst mesh frame (503). A reset rod (516) is provided at the center of the groove of the inverted U-shaped lifting plate (514). A cylinder (517) is provided at the center of the bottom of the first fixed plate (504). The reset rod (516) passes through the cylinder (517) and is telescopically connected to the inside of the cylinder (517) through a reset spring. Baffles (518) that cooperate with the impact plate (507) are symmetrically provided on both sides of the cylinder (517) at the bottom of the first fixed plate (504). A track groove (519) is provided at the center of both sides of the cylinder (517). A slider two that slides in cooperation with the track groove (519) is provided on the inner wall of the groove of the inverted U-shaped lifting plate (514). The connecting rod (502) is hinged to the outside of the bottom of the moving plate (508).

8. The SCR denitrification reactor according to claim 1, characterized in that, The self-cleaning ash guiding mechanism (6) includes a filter plate (601), a vortex blowing guide hood (602), a reverse blowing pipe (603), an ash collection hopper (604), and an ash discharge valve; the vortex blowing guide hood (602) is an inverted cone shape with several inclined guiding holes (605) on its surface; one end of the reverse blowing pipe (603) is connected to the vortex blowing guide hood (602) along the tangential direction, and the other end is connected to a compressed air machine or steam equipment; the filter plate (601) is fixed above the vortex blowing guide hood (602); the bottom opening of the vortex blowing guide hood (602) is connected to the ash collection hopper (604); an ash discharge valve is provided at the bottom discharge port of the ash collection hopper (604).

9. An SCR denitrification reactor according to claim 1, characterized in that, The emission mechanism (3) includes a bottom cover (301), a Z-shaped exhaust pipe (302), and a dust barrier (303); the Z-shaped exhaust pipe (302) prevents dust from flowing back in.

10. An SCR denitrification reactor according to claim 1, characterized in that, The inner wall of the housing (1) is coated with a high-temperature resistant heat insulation coating.

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