Reaction tower for flue gas denitration and desulfurization

Abstract

The invention discloses a reaction tower for flue gas denitration and desulfurization, and relates to the technical field of flue gas denitration and desulfurization, the reaction tower comprises a tower body and a wall scraping mechanism, the wall scraping mechanism comprises a rotational flow plate, a wall scraping plate, a connecting shaft and a stirring fan, the rotational flow plate is movably arranged in the tower body, and the wall scraping plate is movably arranged in the tower body; the plurality of wall scraping plates are fixedly mounted on the outer side walls of the rotational flow plates respectively, and are movably connected with the inner wall of the tower body. The rotational flow plate rotates while ascending and descending, the wall scraping plate rotates along with the rotational flow plate at the same time, scales which are attached to the inner wall of the tower body and generated during reaction are scraped through the wall scraping plate, the situation that the scales are accumulated on the inner wall of the reaction tower and are difficult to clean is avoided, and when the rotational flow plate moves downwards, the stirring fan is driven to descend and rotate, so that the stirring effect is improved. The reaction liquid in the reaction liquid pool is stirred by the rotating stirring fan, so that the uniformity of the reaction liquid is improved, scales on the inner wall of the reaction tower are scraped and separated, and the desulfurization and denitrification efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of flue gas denitration and desulfurization, and in particular to a reaction tower for flue gas denitration and desulfurization. Background Art

[0002] Flue gas desulfurization and denitrification is a technology that removes sulfur dioxide (SO2) and nitrogen oxides (NOx) from flue gas generated by the combustion of fossil fuels such as coal and oil through a series of chemical or physical processes. These two gases are one of the main sources of air pollution, which not only poses a threat to human health, but also seriously affects the natural environment and ecological balance. Therefore, flue gas desulfurization and denitrification have become an indispensable part of modern industry, especially in the power and metallurgical industries. The Chinese patent application with application number 202410546036.3 discloses "a desulfurization and denitrification environmentally friendly flue gas treatment reaction tower, including a tower body, the tower body includes a bottom layer and a top layer distributed in parallel and a linear array distributed between the two layers. the middle layer; the bottom layer is provided with an air inlet, the bottom layer is provided with an axle rod which passes through the air inlet, the middle layer and extends to the inside of the top layer, the axle rod is provided with a pressurizing assembly located inside the air inlet, and the pressurizing assembly includes a coaxially distributed moving wheel and a fixed wheel. The desulfurization and denitrification environmentally friendly flue gas treatment reaction tower provided by the invention has a moving wheel and a fixed wheel which cooperate to accelerate the flow of exhaust gas. The exhaust gas with a faster flow rate will disperse after colliding with the solid particles constituting the cushion layer, and the dispersed exhaust gas still has a certain flow rate. The dispersed airflow collides with other solid particles, and the lateral flow of the airflow is strengthened. The neutralizer located in the gap at the edge of the cushion layer can also fully contact with the exhaust gas, thereby improving the utilization rate of the neutralizer. " This technical solution only solves the problem that the neutralizer in the gap at the edge of the cushion layer is not fully utilized. In addition, the inner wall of the common flue gas desulfurization and denitrification reaction tower is prone to scaling, which can easily affect the flow trajectory of the flue gas entering the reaction tower, making the flue gas unable to be evenly distributed, affecting the contact and reaction between the flue gas and the reaction tower slurry. In addition, the flue gas passes through the curved channel of the demister, and the droplets entrained in the airflow are separated under the action of inertia and gravity. When a large amount of flue gas passes through the demister, if the droplets cannot fall quickly, it will affect the gas-liquid separation effect in the flue gas. Summary of the invention

[0003] The object of the present invention is to provide a reaction tower for flue gas denitration and desulfurization to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a reaction tower for flue gas denitration and desulfurization, comprising a tower body, a smoke inlet pipe is fixedly installed at the left bottom end of the tower body, and a smoke outlet pipe is fixedly installed at the top end of the tower body; A circulating spray mechanism, the circulating spray mechanism comprising a reaction liquid pool, the reaction liquid pool being fixedly mounted at the inner bottom end of the tower body; The scraping mechanism comprises a swirl plate, a scraping plate, a connecting shaft and a stirring fan. The swirl plate is movably arranged inside the tower body. There are a number of scraping plates, which are respectively fixedly mounted on the outer side walls of the swirl plate. The scraping plates are movably connected to the inner wall of the tower body. There are a number of connecting shafts, and the top ends are evenly fixedly mounted on the bottom end of the swirl plate. The stirring fan is fixedly mounted on the bottom end of the connecting shaft. The knocking mechanism comprises a fixing frame, a force storage box and a knocking rod, wherein the fixing frame is fixedly arranged inside the tower body, the force storage box is fixedly installed at the bottom end of the side wall of the fixing frame, and the knocking rod is movably installed inside the force storage box.

[0005] Preferably, the circulating spray mechanism includes a liquid extraction pipe, a circulating pump, a liquid outlet pipe, a spray pipe and a nozzle. The liquid extraction pipe is fixedly installed at the right bottom end of the tower body by insertion, and is fixedly installed inside the reaction liquid pool by insertion. The circulating pump is fixedly installed at the right bottom end of the tower body by bolts. The top end of the liquid extraction pipe is fixedly installed in the liquid inlet of the circulating pump by insertion. The bottom end of the liquid outlet pipe is fixedly installed in the liquid outlet of the circulating pump by insertion. The top end of the liquid outlet pipe is fixedly installed at the middle upper part of the right side of the tower body by insertion. The spray pipe is fixedly installed at the middle upper end of the inside of the tower body by bolts. One end of the liquid outlet pipe located inside the tower body is connected to the spray pipe. There are several nozzles and they are evenly fixedly installed at the bottom end of the spray pipe by insertion.

[0006] Preferably, the wall scraping mechanism includes a support column, a threaded rod, a transmission shaft and a lower connecting seat, the bottom end of the support column is fixedly installed in the middle of the inner bottom end of the reaction liquid tank by bolts, the bottom end of the threaded rod is fixedly installed in the middle of the top end of the support column by bolts, the top end of the transmission shaft is movably installed on the inner top end of the smoke outlet pipe by a bearing, and the lower connecting seat is movably sleeved on the top end of the support column by a bearing.

[0007] Preferably, the scraping mechanism includes an upper connecting seat, a limiting shaft, a motor and a scraping head, the upper connecting seat is fixedly sleeved on the bottom end of the transmission shaft by bolts, there are several limiting shafts and they are evenly fixedly installed between the lower connecting seat and the upper connecting seat by bolts, the middle of the swirl plate is movably sleeved on the outside of the threaded rod by a thread, the swirl plate is movably sleeved on the limiting shaft, the stirring fan is movably sleeved on the outside of the support column by sliding, the motor is fixedly installed on the top of the smoke outlet pipe by bolts, the output shaft of the motor is fixedly installed on the top of the transmission shaft by bolts, there are two scraping heads and they are respectively fixedly installed in the middle of the top and bottom of the swirl plate by bolts, and the scraping head and the threaded groove of the threaded rod are movably connected by insertion.

[0008] Preferably, the knocking mechanism includes a demister, a gear rack and a first gear, the demister is fixedly mounted on the inner top of the tower body by bolts, the gear rack is fixedly mounted on the inner top of the tower body by bolts and is located above the demister, the first gear is fixedly mounted in the middle of the bottom end of the gear rack by bolts, and the intermediate movably sleeve between the gear rack and the first gear is connected to the outside of the transmission shaft.

[0009] Preferably, the knocking mechanism includes a gear shaft, a second gear and a rotating rod, the fixed frame is fixedly mounted on the transmission shaft by bolts and is located between the gear frame and the defogger, the gear shaft is installed on the top of the fixed frame by insertion, the second gear is fixedly sleeved on the gear shaft by bolts and is located inside the top of the fixed frame, the second gear is connected to the first gear by meshing, and the rotating rod is fixedly sleeved on the end of the gear shaft away from the transmission shaft by bolts.

[0010] Preferably, the knocking mechanism includes a rotating plate, a baffle rod and a connecting rod. The rotating plate is movably connected to the end of the gear shaft away from the transmission shaft through a bearing and is located between the rotating rod and the fixed frame. The baffle rod is fixedly installed in the middle of the side of the rotating plate away from the fixed frame by bolts, and the top end of the connecting rod is movably installed on the bottom end of the rotating plate through a rotating shaft.

[0011] Preferably, the knocking mechanism includes a lifting plate, a spring and a knocking frame. The lifting plate is located in the force storage box and is fixedly sleeved on the knocking rod by bolts. The spring is movably sleeved between the lifting plate and the top inner side of the fixing frame. The knocking frame is fixedly installed on the top of the defogger by bolts.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The present invention is designed and installed with a scraper mechanism, and the swirl plate is raised and lowered while rotating, and the scraper plate rotates simultaneously with the swirl plate, and the scale generated during the reaction attached to the inner wall of the tower body is scraped off by the scraper plate, so that the scale is prevented from accumulating on the inner wall of the reaction tower and being difficult to clean. When the swirl plate moves downward, the stirring fan is driven to descend and rotate, and the reaction liquid in the reaction liquid pool is stirred by the rotating stirring fan, so that the uniformity of the reaction liquid is improved, and the scale on the inner wall of the reaction tower is scraped off and separated, thereby improving the efficiency of desulfurization and denitrification. The present invention is installed with a knocking mechanism by design, and the second gear is driven to revolve through the rotating transmission shaft, and the second gear is made to rotate by itself by meshing with the first gear, so as to drive the knocking rod to rise and accumulate force in the force storage box, and then the knocking frame is ejected to knock, so that the vibration generated by the knocking is transmitted to the demister, and the droplets intercepted on the demister are made to fall quickly by the vibration, thereby improving the gas-liquid separation effect after the flue gas passes through the demister. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1Provides an overall structural diagram for an embodiment of the present invention; Figure 2 A schematic diagram of the internal structure of a tower body provided by an embodiment of the present invention; Figure 3 A schematic diagram of a circulating spray mechanism provided in an embodiment of the present invention; Figure 4 A schematic diagram of a wall scraping mechanism provided in an embodiment of the present invention; Figure 5 A schematic diagram of the structure of a swirl plate provided in an embodiment of the present invention; Figure 6 A schematic diagram of a knocking mechanism provided by an embodiment of the present invention; Figure 7 A schematic diagram of the internal structure of a structural energy storage box provided in an embodiment of the present invention.

[0014] In the figure: 1, tower body; 2, smoke inlet pipe; 3, smoke outlet pipe; 4, circulating spray mechanism; 401, reaction liquid pool; 402, liquid extraction pipe; 403, circulating pump; 404, liquid outlet pipe; 405, spray pipe; 406, nozzle; 5, scraping mechanism; 501, support column; 502, threaded rod; 503, transmission shaft; 504, lower connecting seat; 505, upper connecting seat; 506, limit shaft; 507, swirl plate; 508, scraping plate; 509, Connecting shaft; 510, stirring fan; 511, motor; 512, scraping head; 6, knocking mechanism; 601, defogger; 602, gear rack; 603, first gear; 604, fixed frame; 605, gear shaft; 606, second gear; 607, rotating rod; 608, rotating plate; 609, stop rod; 610, connecting rod; 611, power storage box; 612, knocking rod; 613, lifting plate; 614, spring; 615, knocking frame. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] See also Figures 1 to 7 The present invention provides a technical solution: a reaction tower for flue gas denitration and desulfurization, comprising a tower body 1, a smoke inlet pipe 2 is fixedly installed at the bottom left end of the tower body 1, and a smoke outlet pipe 3 is fixedly installed at the top of the tower body 1; The circulating spray mechanism 4 includes a reaction liquid pool 401, and the reaction liquid pool 401 is fixedly installed at the inner bottom end of the tower body 1; The scraping mechanism 5 includes a swirl plate 507, a scraping plate 508, a connecting shaft 509 and a stirring fan 510. The swirl plate 507 is movably arranged inside the tower body 1. There are a number of scraping plates 508, which are respectively fixedly installed on the outer side walls of the swirl plate 507. The scraping plates 508 are movably connected to the inner wall of the tower body 1. There are a number of connecting shafts 509, and the top ends are evenly fixedly installed on the bottom end of the swirl plate 507. The stirring fan 510 is fixedly installed on the bottom end of the connecting shaft 509. The knocking mechanism 6 includes a fixing frame 604, a force storage box 611 and a knocking rod 612. The fixing frame 604 is fixedly arranged inside the tower body 1, the force storage box 611 is fixedly installed at the bottom end of the side wall of the fixing frame 604, and the knocking rod 612 is movably installed inside the force storage box 611.

[0017] The circulating spray mechanism 4 includes a liquid extraction pipe 402, a circulating pump 403, a liquid outlet pipe 404, a spray pipe 405 and a nozzle 406. The liquid extraction pipe 402 is fixedly installed at the right bottom end of the tower body 1 by insertion, and is also fixedly installed inside the reaction liquid pool 401 by insertion. The circulating pump 403 is fixedly installed at the right bottom end of the tower body 1 by bolts. The top end of the liquid extraction pipe 402 is fixedly installed in the liquid inlet of the circulating pump 403 by insertion. The bottom end of the liquid outlet pipe 404 is fixedly installed in the liquid outlet of the circulating pump 403 by insertion. The liquid outlet pipe 404 The top of the tower body 1 is fixedly installed at the upper middle part of the right side of the tower body 1 by insertion, the spray pipe 405 is fixedly installed at the upper middle part of the inside of the tower body 1 by bolts, the end of the liquid outlet pipe 404 located inside the tower body 1 is connected with the spray pipe 405, and there are a total of several nozzles 406 which are evenly fixedly installed at the bottom of the spray pipe 405 by insertion; the reaction liquid in the reaction liquid pool 401 is extracted by the liquid extraction pipe 402, and then the reaction liquid is passed into the spray pipe 405 through the liquid outlet pipe 404, and then the reaction liquid is sprayed downwards through the nozzle 406; The scraping mechanism 5 includes a support column 501, a threaded rod 502, a transmission shaft 503 and a lower connecting seat 504. The bottom end of the support column 501 is fixedly installed in the middle of the inner bottom end of the reaction liquid pool 401 by bolts, the bottom end of the threaded rod 502 is fixedly installed in the middle of the top end of the support column 501 by bolts, the top end of the transmission shaft 503 is movably installed in the inner top end of the smoke outlet pipe 3 by bearings, and the lower connecting seat 504 is movably sleeved on the top end of the support column 501 by bearings; the threaded rod 502 is supported by the support column 501, and the lower connecting seat 504 is installed, and power is transmitted through the transmission shaft 503; The scraping mechanism 5 includes an upper connecting seat 505, a limiting shaft 506, a motor 511 and a scraping head 512. The upper connecting seat 505 is fixedly sleeved on the bottom end of the transmission shaft 503 by bolts. There are a number of limiting shafts 506 that are evenly fixedly installed between the lower connecting seat 504 and the upper connecting seat 505 by bolts. The middle of the swirl plate 507 is movably sleeved on the outside of the threaded rod 502 by threads. The swirl plate 507 is movably sleeved on the limiting shaft 506. The stirring fan 510 is movably sleeved on the outside of the support column 501 by sliding. The motor 511 is fixedly installed on the top of the smoke outlet pipe 3 by bolts. The output shaft of the motor 511 is screwed in The bolt is fixedly installed at the top of the transmission shaft 503, and there are two scraper heads 512, which are respectively fixedly installed at the middle of the top and bottom of the swirl plate 507 by bolts. The scraper heads 512 are connected to the threaded grooves of the threaded rod 502 by insertion. The transmission shaft 503 is driven to rotate by the motor 511. When the transmission shaft 503 rotates, the swirl plate 507 is driven to rotate through the limit shaft 506. When the swirl plate 507 rotates, the scraper plate 508 rotates with the swirl plate 507. The scale generated during the reaction attached to the inner wall of the tower body 1 is scraped off by the scraper plate 508 to avoid the accumulation of scale on the inner wall of the reaction tower and the difficulty in cleaning. The knocking mechanism 6 includes a demister 601, a gear rack 602 and a first gear 603. The demister 601 is fixedly installed at the top of the tower body 1 by bolts. The gear rack 602 is fixedly installed at the top of the tower body 1 by bolts and is located above the demister 601. The first gear 603 is fixedly installed at the middle of the bottom end of the gear rack 602 by bolts. The middle of the gear rack 602 and the first gear 603 is movably sleeved outside the transmission shaft 503. The flue gas after the reaction is separated into gas and liquid by the demister 601, and the first gear 603 is installed by the gear rack 602. The knocking mechanism 6 includes a gear shaft 605, a second gear 606 and a rotating rod 607. The fixing frame 604 is fixedly installed on the transmission shaft 503 by bolts and is located between the gear frame 602 and the defogger 601. The gear shaft 605 is installed on the top of the fixing frame 604 by insertion. The second gear 606 is fixedly sleeved on the gear shaft 605 by bolts and is located inside the top of the fixing frame 604. The second gear 606 is connected to the first gear 603 by meshing. The rotating rod 607 is fixedly sleeved on the end of the gear shaft 605 away from the transmission shaft 503 by bolts; the second gear 606 is driven by the fixing frame 604 to rotate simultaneously with the transmission shaft 503. Since the second gear 606 is meshed with the first gear 603, the second gear 606 revolves around the transmission shaft 503 as the axis and rotates around the gear shaft 605 as the axis, and drives the gear shaft 605 to rotate. When the gear shaft 605 rotates, the rotating rod 607 is driven to rotate. The knocking mechanism 6 includes a rotating plate 608, a blocking rod 609 and a connecting rod 610. The rotating plate 608 is movably sleeved on the end of the gear shaft 605 away from the transmission shaft 503 through a bearing, and is located between the rotating rod 607 and the fixed frame 604. The blocking rod 609 is fixedly installed in the middle of the side of the rotating plate 608 away from the fixed frame 604 through bolts, and the top of the connecting rod 610 is movably installed on the bottom end of the rotating plate 608 through a rotating shaft; the rotating plate 608 is driven to rotate around the gear shaft 605 through the blocking rod 609. When the blocking rod 609 rotates, the knocking rod 612 is driven to rise in the power storage box 611 through the connecting rod 610, so that the lifting plate 613 rises with the knocking rod 612; The knocking mechanism 6 includes a lifting plate 613, a spring 614 and a knocking frame 615. The lifting plate 613 is located in the force storage box 611 and is fixedly sleeved on the knocking rod 612 by bolts. The spring 614 is movably sleeved between the lifting plate 613 and the top of the inner part of the fixing frame 604. The knocking frame 615 is fixedly installed on the top of the defogger 601 by bolts. The knocking rod 612 is popped out by the elastic force of the spring 614, and the knocking frame 615 is knocked by the popped-out knocking rod 612. The vibration generated by the knocking is transmitted to the defogger 601 through the knocking frame 615. The droplets intercepted on the defogger 601 fall down quickly by vibration, thereby improving the defogger effect of the defogger 601.

[0018] Working principle: When the present invention is used, the flue gas is introduced into the tower body 1 through the smoke inlet pipe 2, the circulation pump 403 is started, the reaction liquid in the reaction liquid pool 401 is extracted through the liquid extraction pipe 402, and then the reaction liquid is introduced into the spray pipe 405 through the liquid outlet pipe 404, and then the reaction liquid is sprayed downward through the nozzle 406; When desulfurization and denitration are performed in the tower body 1, the motor 511 is started, and the transmission shaft 503 is driven to rotate by the motor 511. When the transmission shaft 503 rotates, the swirl plate 507 is driven to rotate by the limit shaft 506. When the swirl plate 507 rotates, the scraper plate 508 rotates simultaneously with the swirl plate 507. The scale generated during the reaction and attached to the inner wall of the tower body 1 is scraped off by the scraper plate 508, so as to avoid the scale accumulation on the inner wall of the reaction tower that is difficult to clean; When the swirl plate 507 rotates, since the swirl plate 507 is movably sleeved on the threaded rod 502 through a thread, the swirl plate 507 moves downward while rotating. When the swirl plate 507 moves downward, the scraper plate 508 is driven to move downward, so that the scale on the inner wall of the tower body 1 between the smoke inlet pipe 2 and the spray pipe 405 can be completely scraped off and separated; When the swirl plate 507 moves downward, the stirring fan 510 is driven downward by the connecting shaft 509, and rotates along with the swirl plate 507 at the same time, and the reaction liquid in the reaction liquid pool 401 is stirred by the rotating stirring fan 510. The reverse rotation of the motor 511 can make the swirl plate 507 rise and rotate at the same time, so as to perform reciprocating lifting and lowering, so that the scale on the inner wall of the reaction tower can be scraped and separated while the flue gas is reacting; The scale in the thread groove of the threaded rod 502 is cleaned by the scraper head 512 to avoid affecting the lifting of the swirl plate 507; When the transmission shaft 503 rotates, the second gear 606 is driven to rotate simultaneously with the transmission shaft 503 through the fixed frame 604. Since the second gear 606 is meshed with the first gear 603, the second gear 606 revolves around the transmission shaft 503 as the axis and rotates around the gear shaft 605 as the axis, and drives the gear shaft 605 to rotate. When the gear shaft 605 rotates, it drives the rotating rod 607 to rotate. When the bottom end of the rotating rod 607 rotates to the stop rod 609, the stop rod 609 drives the rotating plate 608 to rotate around the gear shaft 605 as the axis. When the stop rod 609 rotates, the connecting rod 610 drives the knocking rod 612 to rise in the power storage box 611, so that the lifting and lowering The plate 613 rises along with the knocking rod 612. When the lifting plate 613 rises, the spring 614 is compressed. When the bottom end of the rotating rod 607 rotates half a circle, the spring 614 is compressed to the shortest state, so that the knocking rod 612 obtains the maximum power storage. The rotating rod 607 continues to rotate and separates from the blocking rod 609. At the same time, the knocking rod 612 is popped out by the elastic force of the spring 614. The knocking rod 612 that pops out knocks the knocking frame 615. The vibration generated by the knocking is transmitted to the defogger 601 through the knocking frame 615. The droplets intercepted on the defogger 601 fall down quickly through the vibration, thereby improving the defogger effect of the defogger 601.

[0019] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reaction tower for flue gas denitration and desulfurization, comprising a tower body (1), a smoke inlet pipe (2) being fixedly mounted on the left bottom end of the tower body (1) by bolts, and a smoke outlet pipe (3) being fixedly mounted on the top end of the tower body (1) by bolts, characterized in that: A circulating spray mechanism (4), the circulating spray mechanism (4) comprising a reaction liquid pool (401), the reaction liquid pool (401) being fixedly mounted on the inner bottom end of the tower body (1) by means of bolts; A wall scraping mechanism (5), the wall scraping mechanism (5) comprising a swirl plate (507), a wall scraping plate (508), a connecting shaft (509) and a stirring fan (510), the swirl plate (507) being movably arranged inside the tower body (1), the wall scraping plates (508) being in total a plurality and being respectively fixedly mounted on the outer wall of the swirl plate (507) by bolts, the wall scraping plates (508) being movably connected to the inner wall of the tower body (1), the connecting shafts (509) being in total a plurality and having their top ends evenly fixedly mounted on the bottom end of the swirl plate (507) by bolts, and the stirring fan (510) being fixedly mounted on the bottom end of the connecting shaft (509) by bolts; A knocking mechanism (6), the knocking mechanism (6) comprising a fixing frame (604), a force storage box (611) and a knocking rod (612), the fixing frame (604) being fixedly arranged inside the tower body (1), the force storage box (611) being fixedly mounted on the bottom end of the side wall of the fixing frame (604) by means of bolts, and the knocking rod (612) being movably mounted inside the force storage box (611) by means of insertion.

2. A reaction tower for flue gas denitration and desulfurization according to claim 1, characterized in that: The circulating spray mechanism (4) comprises a liquid extraction pipe (402), a circulating pump (403), a liquid outlet pipe (404), a spray pipe (405) and a spray head (406); the liquid extraction pipe (402) is fixedly installed at the right bottom end of the tower body (1) by insertion, and is also fixedly installed inside the reaction liquid pool (401) by insertion; the circulating pump (403) is fixedly installed at the right bottom end of the tower body (1) by bolts; the top end of the liquid extraction pipe (402) is fixedly installed in the liquid inlet of the circulating pump (403) by insertion, The bottom end of the liquid outlet pipe (404) is inserted and fixed in the liquid outlet of the circulation pump (403), the top end of the liquid outlet pipe (404) is inserted and fixedly installed at the middle upper part of the right side of the tower body (1), the spray pipe (405) is fixedly installed at the middle upper end of the inside of the tower body (1) by bolts, one end of the liquid outlet pipe (404) located inside the tower body (1) is connected to the spray pipe (405), and there are a plurality of spray heads (406) which are evenly inserted and fixedly installed at the bottom end of the spray pipe (405).

3. A reaction tower for flue gas denitration and desulfurization according to claim 2, characterized in that: The wall scraping mechanism (5) comprises a support column (501), a threaded rod (502), a transmission shaft (503) and a lower connecting seat (504); the bottom end of the support column (501) is fixedly mounted at the middle of the inner bottom end of the reaction liquid pool (401) by means of bolts; the bottom end of the threaded rod (502) is fixedly mounted at the middle of the top end of the support column (501) by means of bolts; the top end of the transmission shaft (503) is movably mounted at the inner top end of the smoke outlet pipe (3) by means of a bearing; and the lower connecting seat (504) is movably sleeved on the top end of the support column (501) by means of a bearing.

4. A reaction tower for flue gas denitration and desulfurization according to claim 3, characterized in that: The wall scraping mechanism (5) comprises an upper connecting seat (505), a limiting shaft (506), a motor (511) and a scraping head (512); the upper connecting seat (505) is fixedly sleeved on the bottom end of the transmission shaft (503) by means of bolts; a plurality of limiting shafts (506) are evenly fixedly installed between the lower connecting seat (504) and the upper connecting seat (505) by means of bolts; the middle of the swirl plate (507) is movably sleeved on the outside of the threaded rod (502) by means of threads; the swirl plate (507) is movably sleeved on the outside of the threaded rod (502); and the swirl plate (507) is movably sleeved on the The stirring fan (510) is slidably sleeved on the outside of the support column (501) on the limiting shaft (506), the motor (511) is fixedly mounted on the top of the smoke outlet pipe (3) by bolts, the output shaft of the motor (511) is fixedly mounted on the top of the transmission shaft (503) by bolts, there are two scraper heads (512) and they are respectively fixedly mounted in the middle of the top and bottom of the swirl plate (507) by bolts, and the scraper heads (512) are movably connected to the threaded groove of the threaded rod (502) by insertion.

5. A reaction tower for flue gas denitration and desulfurization according to claim 4, characterized in that: The knocking mechanism (6) comprises a demister (601), a gear rack (602) and a first gear (603); the demister (601) is fixedly mounted on the top of the interior of the tower body (1) by means of bolts; the gear rack (602) is fixedly mounted on the top of the interior of the tower body (1) by means of bolts and is located above the demister (601); the first gear (603) is fixedly mounted on the middle of the bottom end of the gear rack (602) by means of bolts; and the middle portion between the gear rack (602) and the first gear (603) is movably sleeved outside the transmission shaft (503).

6. A reaction tower for flue gas denitration and desulfurization according to claim 5, characterized in that: The knocking mechanism (6) comprises a gear shaft (605), a second gear (606) and a rotating rod (607); the fixing frame (604) is fixedly mounted on the transmission shaft (503) by means of bolts and is located between the gear frame (602) and the demister (601); the gear shaft (605) is installed on the top of the fixing frame (604) by means of insertion; the second gear (606) is fixedly sleeved on the gear shaft (605) by means of bolts and is located inside the top of the fixing frame (604); the second gear (606) is connected to the first gear (603) by means of meshing; and the rotating rod (607) is fixedly sleeved on the end of the gear shaft (605) away from the transmission shaft (503) by means of bolts.

7. A reaction tower for flue gas denitration and desulfurization according to claim 6, characterized in that: The knocking mechanism (6) comprises a rotating plate (608), a blocking rod (609) and a connecting rod (610); the rotating plate (608) is movably sleeved on an end of the gear shaft (605) away from the transmission shaft (503) via a bearing and is located between the rotating rod (607) and the fixing frame (604); the blocking rod (609) is fixedly mounted on the middle of a side of the rotating plate (608) away from the fixing frame (604) via bolts; and the top end of the connecting rod (610) is movably mounted on the bottom end of the rotating plate (608) via a rotating shaft.

8. A reaction tower for flue gas denitration and desulfurization according to claim 7, characterized in that: The knocking mechanism (6) comprises a lifting plate (613), a spring (614) and a knocking frame (615); the lifting plate (613) is located in the power storage box (611) and is fixedly sleeved on the knocking rod (612) by means of bolts; the spring (614) is movably sleeved between the lifting plate (613) and the top end of the fixing frame (604); and the knocking frame (615) is fixedly mounted on the top end of the demister (601) by means of bolts.

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