Biomass boiler flue gas denitration treatment equipment

Abstract

The invention particularly relates to biomass boiler flue gas denitration treatment equipment, which belongs to the technical field of flue gas denitration treatment and comprises a partition plate, and a plurality of support rods are arranged at the top of the partition plate. Through a denitration structure and a rotating structure, after flue gas enters a denitration tank through a flue gas passing pipe and is subjected to denitration treatment, nitrogen enters a cooling groove of a cylinder through a connecting hole, after the cooling groove is full, a disc is driven by a second motor to rotate, and due to the fact that the side edge of a spline gear is attached to an arc of a clamping column, when the clamping column rotates, the groove plate is clamped into a groove of the spline gear; and then intermittent rotation of a third rotating rod can be achieved, so that six cooling grooves can be filled with nitrogen one by one, at the moment, the whole cylinder is cooled through liquid nitrogen in a liquid nitrogen groove, the nitrogen can be liquefied into liquid nitrogen, and at the moment, a pulling plate is pulled upwards, a pulling rod drives a movable plug to suck the liquid nitrogen into a sealing tank, so that the sealing tank is sealed. And at the moment, the sealing tank is extracted from the sealing plate to collect the internal liquid nitrogen, so that the purpose of collecting the nitrogen is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of flue gas denitrification treatment, and specifically to a biomass boiler flue gas denitrification treatment device. Background Art

[0002] The flue gas denitrification technologies mainly include dry selective catalytic reduction flue gas denitrification, selective non-catalytic reduction denitrification and wet method. Compared with the wet flue gas denitrification technology, the main advantages of the dry flue gas denitrification technology are: low basic investment, simple equipment and process, relatively high efficiency in removing NOX, no wastewater and waste treatment, and not easy to cause secondary pollution.

[0003] In the prior art, when a biomass boiler burns, a denitrifying agent is often used to denitrify the flue gas. After treatment, the flue gas decomposes into a certain amount of nitrogen and water. However, in the prior art, there is no structure for integrally collecting the nitrogen and water decomposed from the flue gas, and they are all directly discharged. Nitrogen has good functions of isolation, flame retardancy, explosion prevention and anti-corrosion. The non-collection will cause a certain amount of resource waste. Based on the existing technical deficiencies, the present invention designs a biomass boiler flue gas denitrification treatment device. Summary of the Invention

[0004] The present invention provides a biomass boiler flue gas denitrification treatment device, which has the advantage of being able to separately collect the generated nitrogen and water after denitrification is completed, and solves the problems mentioned in the above background.

[0005] The present invention provides the following technical solution: a flue gas denitrification treatment device for a biomass boiler, including a partition plate. A plurality of support rods are arranged on the top of the partition plate, and a mounting platform is fixedly installed on the tops of the plurality of support rods. A liquefaction structure is arranged inside the mounting platform, and a denitrification structure is arranged inside the mounting platform; the liquefaction structure includes a filter water tank. A collecting water pipe is fixedly installed on one side of the outer surface of the filter water tank. A liquefaction tank is arranged on the top of the filter water tank, and a rotating structure is arranged inside the liquefaction tank; the rotating structure includes a second circular bottom plate and a third rotating rod. The second circular bottom plate is fixedly connected to the liquefaction tank. A fixing ring is fixedly installed at the bottom of the second circular bottom plate. A second motor is fixedly installed inside the fixing ring. One end of the output shaft of the second motor is fixedly installed with a disc. A clamping column is fixedly installed on the top of the disc. A groove plate is fixedly installed on one side of the top of the disc. A spline gear is fixedly installed on the outer surface of the third rotating rod. The arc of the spline gear is in contact with the side of the clamping column. A cylinder is fixedly installed on the top of the third rotating rod. Six connecting holes are opened on one side of the cylinder. Six cooling grooves are fixedly installed inside the cylinder. A liquid nitrogen tank is arranged inside the cylinder. The six cooling grooves are communicated with the corresponding connecting holes. A sealing plate is fixedly installed on the top of the six cooling grooves. A sealing can is placed inside the sealing plate. A pulling rod is arranged inside the sealing can. A movable plug is fixedly installed at the bottom of the pulling rod. A pulling plate is fixedly installed on the top of the pulling rod.

[0006] As a preferred technical solution of the present invention, the denitrification structure includes an overhead plate. A denitrification tank is arranged on the top of the overhead plate. An extension block is fixedly installed on one side of the outer surface of the denitrification tank. A circular groove plate is fixedly installed inside the denitrification tank. An air pipe is fixedly installed on one side of the outer surface of the denitrification tank. The air pipe is connected to the through hole on the outer surface of the liquefaction tank. A water pipe is fixedly installed on one side of the outer surface of the denitrification tank. The water pipe is communicated with the filter water tank. A dirty water pipe is fixedly installed on one side of the outer surface of the denitrification tank.

[0007] As a preferred technical solution of the present invention, two shaft rods are rotatably installed inside the extension block. The two shaft rods penetrate through the four slots of the circular groove plate. A turning handle is fixedly installed at one end of the two shaft rods. Four opening and closing plates are fixedly installed on the outer surfaces of the two shaft rods. The four opening and closing plates are closely fitted with the four slots of the circular groove plate.

[0008] As a preferred technical solution of the present invention, a first circular bottom plate is fixedly installed inside the denitrification tank. A hanging wall structure is fixedly installed inside the overhead plate. The hanging wall structure includes a fixing plate, a first rotating rod, and a second rotating rod. A connecting rod is fixedly installed on one side of the outer surface of the fixing plate. A first motor is fixedly installed inside the connecting rod.

[0009] As a preferred technical solution of the present invention, one end of the output shaft of the first motor is fixedly installed with a first bevel gear. The first rotating rod passes through the first circular bottom plate and the circular groove plate and extends to the top of the inner wall of the denitration tank. A plurality of atomization holes are formed on the outer surface of the first rotating rod.

[0010] As a preferred technical solution of the present invention, a second bevel gear is fixedly installed on the outer surface of the first rotating rod, and the outer surface of the second bevel gear meshes with the outer surface of the first bevel gear.

[0011] As a preferred technical solution of the present invention, the second rotating rod is rotatably connected to the circular groove plate and the first circular bottom plate and is sleeved outside the first rotating rod. A third bevel gear is fixedly installed on the outer surface of the second rotating rod, and the outer surface of the third bevel gear meshes with the outer surface of the first bevel gear. Cross bars are fixedly installed on both sides of the outer surface of the second rotating rod, and a fitting scraping rod is fixedly installed inside the two cross bars. Chamfers are arranged on the sides of the two fitting scraping rods.

[0012] As a preferred technical solution of the present invention, a biomass boiler body is fixedly installed on the top of the outer surface of the partition plate. A smoke pipe is fixedly installed on one side of the biomass boiler body, and one end of the smoke pipe communicates with the inside of the denitration tank.

[0013] As a preferred technical solution of the present invention, a denitration agent storage box is fixedly installed on the top of the outer surface of the erection platform. A first connecting pipe is arranged on the top of the denitration agent storage box, and one end of the first connecting pipe communicates with the denitration tank.

[0014] As a preferred technical solution of the present invention, a water pump is fixedly installed on the top of the outer surface of the erection platform. A second connecting pipe is arranged on the top of the water pump, and one end of the second connecting pipe is connected to the first rotating rod passing through the top of the denitration tank through a connecting shaft.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The biomass boiler flue gas denitrification treatment equipment, through the denitrification structure and the rotation structure, when the flue gas enters the denitrification tank through the smoke pipe and is denitrified, nitrogen and water are produced. The nitrogen enters the cylinder through the connecting hole from the gas pipe. At this time, by rotating the two turning handles, the two shaft rods drive the four opening and closing plates to turn over. At this time, the produced water falls into the interlayer between the circular groove plate and the first circular bottom plate, enters the filter water tank through the water pipe, flows out through the collection water pipe after filtration, and is collected by the staff. The produced nitrogen enters the cooling tank of the cylinder through the connecting hole. After being filled, it is driven by the second motor to make the disc rotate. Since the side of the flower gear is in contact with the arc of the clamping column, when the clamping column rotates, the groove plate is clamped into the groove of the flower gear, and thus the intermittent rotation of the third rotating rod can be realized. Thus, the six cooling tanks can be filled with nitrogen one by one. At this time, the liquid nitrogen in the liquid nitrogen tank cools the entire inside of the cylinder, so that the nitrogen can be liquefied into liquid nitrogen. At this time, the staff pulls up the pull plate upward, so that the pulling rod drives the movable plug to pump the liquid nitrogen into the sealed tank. At this time, the staff pulls out the sealed tank from the sealing plate to collect the internal liquid nitrogen. Thus, the purpose of separately collecting the produced nitrogen and water after denitrification is achieved;

[0017] 2. The biomass boiler flue gas denitrification treatment equipment, through the denitrification structure, the flue gas enters the denitrification tank through the smoke pipe and is denitrified. Driven by the first motor, its output shaft drives the first bevel gear to rotate. Since the outer surface of the first bevel gear meshes with the outer surfaces of the second bevel gear and the third bevel gear, the rotation of the first bevel gear can drive the second rotating rod and the first rotating rod to rotate in the opposite direction. Thus, the attachment on the inner wall of the denitrification tank can be scraped off by the two matching scraping rods on both sides. At the same time, by connecting the water pump with the ammonia water tank, when the matching scraping rod scrapes, the second connecting pipe injects the ammonia water into the first rotating rod. Through the rotation of the first rotating rod and the setting of the atomizing holes, the ammonia water can be atomized and sprayed into the denitrification tank. Thus, the attachments can be knocked off and discharged through the dirty water pipe. At the same time, by spraying the ammonia water from the atomizing holes, the denitrification efficiency inside the denitrification tank can be improved.

[0018] 3. The biomass boiler flue gas denitrification treatment equipment, through the denitrification structure and the denitrifying agent storage box, when denitrification treatment is carried out, the flue gas generated by the combustion of the biomass boiler body enters the inside of the denitrification tank through the smoke pipe. At this time, the denitrifying agent storage box introduces the denitrifying agent into the denitrification tank through the first connecting pipe. At this time, through the rotation of the matching scraping rod and the first rotating rod, the denitrifying agent can be fully mixed with the flue gas. At the same time, by spraying the ammonia water through the atomizing holes, the rate of flue gas treatment can be improved and the denitrification time can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the external structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the smoke pipe structure of the present invention;

[0021] Figure 3 Schematic diagram of the first connecting pipe structure of the present invention;

[0022] Figure 4 Schematic diagram of the gas passing pipe structure of the present invention;

[0023] Figure 5 Schematic diagram of the dirty water pipe structure of the present invention;

[0024] Figure 6 Schematic diagram of the circular groove plate structure of the present invention;

[0025] Figure 7 Schematic diagram of the opening and closing plate structure of the present invention;

[0026] Figure 8 Schematic diagram of the filter water tank structure of the present invention;

[0027] Figure 9 Schematic diagram of the collecting water pipe structure of the present invention;

[0028] Figure 10 Schematic diagram of the second motor structure of the present invention;

[0029] Figure 11 Schematic diagram of the connecting hole structure of the present invention;

[0030] Figure 12 Schematic diagram of the flower gear structure of the present invention;

[0031] Figure 13 Schematic diagram of the liquid nitrogen tank structure of the present invention.

[0032] In the figure: 1, partition board; 2, support rod; 3, erection platform; 4, liquefaction structure; 41, filter water tank; 42, liquefaction tank; 43, collection water pipe; 5, denitration structure; 51, overhead board; 52, denitration tank; 53, extension block; 531, circular groove plate; 532, shaft rod; 533, turning handle; 534, opening and closing plate; 54, gas passing pipe; 55, water passing pipe; 56, dirty water pipe; 6, biomass boiler body; 7, smoke passing pipe; 8, denitration agent storage box; 81, first connecting pipe; 9, water pump; 91, second connecting pipe; 10, first circular bottom plate; 11, wall hanging structure; 111, fixing plate; 112, connecting rod; 113, first motor; 114, first bevel gear; 115, first rotating rod; 116, second bevel gear; 117, second rotating rod; 118, third bevel gear; 119, cross bar; 1110, atomizing hole; 1111, adapting scraping rod; 12, rotating structure; 121, second circular bottom plate; 122, fixing ring; 123, second motor; 124, disc; 125, groove plate; 126, clamping column; 127, third rotating rod; 128, flower gear; 129, cylinder; 1210, liquid nitrogen tank; 1211, cooling tank; 1212, sealing plate; 1213, sealing tank; 1214, pulling rod; 1215, pulling plate; 1216, movable plug; 1217, connecting hole. Detailed implementation manner

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Please refer to Figure 1 , Figure 2 , Figure 4 , and Figure 10 and Figure 13, a flue gas denitrification treatment device for a biomass boiler, including a partition plate 1. A plurality of support rods 2 are arranged at the top of the partition plate 1. A mounting platform 3 is fixedly installed at the top of the plurality of support rods 2. A liquefaction structure 4 is arranged inside the mounting platform 3, and a denitrification structure 5 is arranged inside the mounting platform 3; The liquefaction structure 4 includes a filter water tank 41. A collecting water pipe 43 is fixedly installed on one side of the outer surface of the filter water tank 41. A liquefaction tank 42 is arranged at the top of the filter water tank 41. A rotating structure 12 is arranged inside the liquefaction tank 42; The rotating structure 12 includes a second circular bottom plate 121 and a third rotating rod 127. The second circular bottom plate 121 is fixedly connected to the liquefaction tank 42. A fixing ring 122 is fixedly installed at the bottom of the second circular bottom plate 121. A second motor 123 is fixedly installed inside the fixing ring 122. One end of the output shaft of the second motor 123 is fixedly installed with a disc 124. A clamping column 126 is fixedly installed at the top of the disc 124. A groove plate 125 is fixedly installed on one side of the top of the disc 124. A flower gear 128 is fixedly installed on the outer surface of the third rotating rod 127. The arc of the flower gear 128 is in contact with the side of the clamping column 126. A cylinder 129 is fixedly installed at the top of the third rotating rod 127. Six connecting holes 1217 are opened on one side of the cylinder 129. Six cooling grooves 1211 are fixedly installed inside the cylinder 129. A liquid nitrogen tank 1210 is arranged inside the cylinder 129. The six cooling grooves 1211 communicate with the corresponding connecting holes 1217. A sealing plate 1212 is fixedly installed at the top of the six cooling grooves 1211. A sealing tank 1213 is placed inside the sealing plate 1212. A pulling rod 1214 is arranged inside the sealing tank 1213. A movable plug 1216 is fixedly installed at the bottom of the pulling rod 1214. A pulling plate 1215 is fixedly installed at the top of the pulling rod 1214.

[0035] Please refer to Figures 5 - 7 , the denitrification structure 5 includes an overhead plate 51. A denitrification tank 52 is arranged at the top of the overhead plate 51. An extension block 53 is fixedly installed on one side of the outer surface of the denitrification tank 52. A circular groove plate 531 is fixedly installed inside the denitrification tank 52. An air pipe 54 is fixedly installed on one side of the outer surface of the denitrification tank 52. The air pipe 54 is connected to the through hole on the outer surface of the liquefaction tank 42. A water pipe 55 is fixedly installed on one side of the outer surface of the denitrification tank 52. The water pipe 55 communicates with the filter water tank 41. A dirty water pipe 56 is fixedly installed on one side of the outer surface of the denitrification tank 52. Two shaft rods 532 are rotatably installed inside the extension block 53. The two shaft rods 532 penetrate through the four slots of the circular groove plate 531. A turning handle 533 is fixedly installed at one end of the two shaft rods 532. Four opening and closing plates 534 are fixedly installed on the outer surface of the two shaft rods 532. The four opening and closing plates 534 are in close fit with the four slots of the circular groove plate 531.

[0036] When nitrogen and water are produced after the denitrification treatment of the flue gas in the denitrification tank 52, at this time, by rotating two turning handles 533, the two shaft rods 532 drive the four opening and closing plates 534 to turn over. At this time, the generated water falls into the interlayer between the circular groove plate 531 and the first circular bottom plate 10, enters the filter water tank 41 through the water pipe 55, flows out through the collection water pipe 43 after filtration, and is collected by the staff.

[0037] Please refer to Figures 6 - 7 , a first circular bottom plate 10 is fixedly installed inside the denitrification tank 52, and a wall hanging structure 11 is fixedly installed inside the overhead plate 51. The wall hanging structure 11 includes a fixed plate 111, a first rotating rod 115, and a second rotating rod 117. One side of the outer surface of the fixed plate 111 is fixedly installed with a connecting rod 112, and a first motor 113 is fixedly installed inside the connecting rod 112. One end of the output shaft of the first motor 113 is fixedly installed with a first bevel gear 114. The first rotating rod 115 passes through the first circular bottom plate 10 and the circular groove plate 531 and extends to the top of the inner wall of the denitrification tank 52. A plurality of atomization holes 1110 are formed on the outer surface of the first rotating rod 115. A second bevel gear 116 is fixedly installed on the outer surface of the first rotating rod 115, and the outer surface of the second bevel gear 116 meshes with the outer surface of the first bevel gear 114. The second rotating rod 117 is rotatably connected to the circular groove plate 531 and the first circular bottom plate 10 and is sleeved outside the first rotating rod 115. A third bevel gear 118 is fixedly installed on the outer surface of the second rotating rod 117, and the outer surface of the third bevel gear 118 meshes with the outer surface of the first bevel gear 114. Cross bars 119 are fixedly installed on both sides of the outer surface of the second rotating rod 117, and a matching scraping rod 1111 is fixedly installed inside the two cross bars 119. Chamfers are provided on the sides of the two matching scraping rods 1111.

[0038] Driven by the first motor 113, its output shaft drives the first bevel gear 114 to rotate. Since the outer surface of the first bevel gear 114 meshes with the outer surfaces of the second bevel gear 116 and the third bevel gear 118, the rotation of the first bevel gear 114 can drive the second rotating rod 117 and the first rotating rod 115 to rotate in opposite directions. Thus, the attachment on the inner wall of the denitrification tank 52 can be scraped off by the two matching scraping rods 1111 on both sides. At the same time, by connecting the water pump 9 with the ammonia water tank, when the matching scraping rod 1111 scrapes, the second connecting pipe 91 injects ammonia water into the first rotating rod 115. Through the rotation of the first rotating rod 115 and the setting of the atomization holes 1110, the ammonia water can be atomized and sprayed into the denitrification tank 52. Thus, the attachments can be knocked off and discharged through the dirty water pipe 56.

[0039] Please refer to Figures 1 - 3, a biomass boiler body 6 is fixedly installed at the top of the outer surface of the partition plate 1. A smoke pipe 7 is fixedly installed on one side of the biomass boiler body 6, and one end of the smoke pipe 7 communicates with the interior of the denitration tank 52. A denitration agent storage box 8 is fixedly installed at the top of the outer surface of the erection platform 3. A first connecting pipe 81 is arranged at the top of the denitration agent storage box 8, and one end of the first connecting pipe 81 communicates with the denitration tank 52. A water pump 9 is fixedly installed at the top of the outer surface of the erection platform 3. A second connecting pipe 91 is arranged at the top of the water pump 9, and one end of the second connecting pipe 91 is connected to a first rotating rod 115 passing through the top of the denitration tank 52 through a connecting shaft.

[0040] The denitration agent storage box 8 introduces the denitration agent into the denitration tank 52 through the first connecting pipe 81. At this time, through the rotation of the matching scraping rod 1111 and the first rotating rod 115, the denitration agent can be fully mixed with the flue gas. By connecting the water pump 9 to the ammonia water tank, when the matching scraping rod 1111 scrapes, the second connecting pipe 91 injects ammonia water into the first rotating rod 115. Through the rotation of the first rotating rod 115 and the arrangement of the atomization holes 1110, the ammonia water can be atomized and sprinkled into the denitration tank 52.

[0041] Working principle: when a biomass boiler flue gas denitration treatment device is used, in the initial state, the biomass boiler body 6 burns to generate flue gas that enters the denitration tank 52 through the smoke pipe 7. At this time, the denitration agent storage box 8 introduces the denitration agent into the denitration tank 52 through the first connecting pipe 81. At the same time, the water pump 9 is connected to the ammonia tank through the second connecting pipe 91 to spray the ammonia water from the atomization hole 1110 through the first rotating rod 115, thereby denitrifying the flue gas in the denitration tank 52. After the flue gas is denitrated, nitrogen and water are generated. The nitrogen enters the cylinder 129 from the air pipe 54 through the connecting hole 1217. At this time, by rotating the two turning handles 533, The two shafts 532 drive the four opening and closing plates 534 to flip. At this time, the water generated falls into the interlayer between the circular groove plate 531 and the first circular bottom plate 10, enters the filtered water tank 41 through the water pipe 55, flows out through the collecting water pipe 43 after being filtered, and is collected by the staff. The generated nitrogen enters the cooling groove 1211 of the cylinder 129 through the connecting hole 1217. After it is full, it is driven by the second motor 123 to make the disc 124 rotate. Since the side of the flower gear 128 is attached to the arc of the clamping column 126, the groove plate 125 is clamped into the groove of the flower gear 128 when the clamping column 126 rotates, so that the intermittent rotation of the third rotating rod 127 can be realized, thereby making the six The cooling tanks 1211 are filled with nitrogen one by one. At this time, the liquid nitrogen in the liquid nitrogen tank 1210 cools the entire cylinder 129, so that the nitrogen can be liquefied into liquid nitrogen. At this time, the staff pulls the pull plate 1215 upward, so that the pull rod 1214 drives the movable plug 1216 to draw the liquid nitrogen into the sealed tank 1213. At this time, the staff draws the sealed tank 1213 out of the sealing plate 1212 to collect the internal liquid nitrogen. When the flue gas treatment is completed, the opening and closing plate 534 is reset. At this time, the first motor 113 is driven to make its output shaft drive the first bevel gear 114 to rotate. Since the outer surface of the first bevel gear 114 is connected with the second bevel gear 116 and the third bevel gear 116, the outer surface of the first bevel gear 114 is connected with the second bevel gear 116 and the third bevel gear 116. The outer surfaces of the gears 118 mesh with each other, so the rotation of the first bevel gear 114 can drive the second rotating rod 117 and the first rotating rod 115 to rotate in the opposite direction, thereby allowing the adapter scraper rods 1111 on both sides to hang down the attachments on the inner wall of the denitrification tank 52, and at the same time connect with the ammonia tank through the water pump 9, and when the adapter scraper rod 1111 scrapes, the second connecting pipe 91 injects ammonia into the first rotating rod 115, and through the rotation of the first rotating rod 115 and the setting of the atomization hole 1110, the ammonia can be atomized and sprinkled into the denitrification tank 52, thereby knocking off the attachments and discharging them through the dirty water pipe 56, and at the same time, the ammonia sprayed out from the atomization hole 1110 can improve the denitrification efficiency inside the denitrification tank 52.

[0042] It should be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0043] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A biomass boiler flue gas denitrification treatment device, comprising a partition plate (1), characterized in that: A plurality of support rods (2) are arranged on the top of the partition plate (1), a mounting platform (3) is fixedly installed on the top of the plurality of support rods (2), a liquefaction structure (4) is arranged inside the mounting platform (3), and a denitration structure (5) is arranged inside the mounting platform (3); The liquefaction structure (4) comprises a filter water tank (41), a collecting water pipe (43) is fixedly mounted on one side of the outer surface of the filter water tank (41), a liquefaction tank (42) is arranged on the top of the filter water tank (41), and a rotating structure (12) is arranged inside the liquefaction tank (42); The rotating structure (12) comprises a second circular bottom plate (121) and a third rotating rod (127); the second circular bottom plate (121) is fixedly connected to the liquefied tank (42); a fixing ring (122) is fixedly installed at the bottom of the second circular bottom plate (121); a second motor (123) is fixedly installed inside the fixing ring (122); a disc (124) is fixedly installed at one end of the output shaft of the second motor (123); a clamping column (126) is fixedly installed at the top of the disc (124); a groove plate (125) is fixedly installed at one side of the top of the disc (124); a flower gear (128) is fixedly installed on the outer surface of the third rotating rod (127); the arc of the flower gear (128) is in contact with the side of the clamping column (126); the arc of the third rotating rod (127) is fixedly installed at ... A cylinder (129) is fixedly installed on the top, and six connecting holes (1217) are opened on one side of the cylinder (129). Six cooling grooves (1211) are fixedly installed inside the cylinder (129). A liquid nitrogen groove (1210) is arranged inside the cylinder (129). The six cooling grooves (1211) are connected with the corresponding connecting holes (1217). A sealing plate (1212) is fixedly installed on the top of the six cooling grooves (1211). A sealing tank (1213) is placed inside the sealing plate (1212). A pulling rod (1214) is arranged inside the sealing tank (1213). A movable plug (1216) is fixedly installed on the bottom of the pulling rod (1214), and a pulling plate (1215) is fixedly installed on the top of the pulling rod (1214).

2. A biomass boiler flue gas denitrification treatment equipment according to claim 1, characterized in that: The denitration structure (5) comprises an overhead plate (51), a denitration tank (52) is arranged on the top of the overhead plate (51), an extension block (53) is fixedly installed on one side of the outer surface of the denitration tank (52), a circular groove plate (531) is fixedly installed inside the denitration tank (52), an air pipe (54) is fixedly installed on one side of the outer surface of the denitration tank (52), the air pipe (54) is connected to the through hole on the outer surface of the liquefaction tank (42), a water pipe (55) is fixedly installed on one side of the outer surface of the denitration tank (52), the water pipe (55) is connected to the filtered water tank (41), and a dirty water pipe (56) is fixedly installed on one side of the outer surface of the denitration tank (52).

3. A biomass boiler flue gas denitrification treatment equipment according to claim 2, characterized in that: Two shafts (532) are rotatably mounted inside the extension block (53), and the two shafts (532) penetrate through the four grooves of the circular groove plate (531). A turning handle (533) is fixedly mounted on one end of the two shafts (532), and four opening and closing plates (534) are fixedly mounted on the outer surfaces of the two shafts (532), and the four opening and closing plates (534) are tightly fitted with the four grooves of the circular groove plate (531).

4. The biomass boiler flue gas denitrification treatment equipment according to claim 2 is characterized in that: A first circular bottom plate (10) is fixedly installed inside the denitration tank (52), a wall-mounted structure (11) is fixedly installed inside the overhead plate (51), the wall-mounted structure (11) comprises a fixed plate (111), a first rotating rod (115), and a second rotating rod (117), a connecting rod (112) is fixedly installed on one side of the outer surface of the fixed plate (111), and a first motor (113) is fixedly installed inside the connecting rod (112).

5. The biomass boiler flue gas denitrification treatment equipment according to claim 4 is characterized in that: A first bevel gear (114) is fixedly mounted on one end of the output shaft of the first motor (113); the first rotating rod (115) penetrates the first circular bottom plate (10) and the circular groove plate (531) and extends to the top of the inner wall of the denitration tank (52); and a plurality of atomization holes (1110) are formed on the outer surface of the first rotating rod (115).

6. A biomass boiler flue gas denitrification treatment equipment according to claim 5, characterized in that: A second bevel gear (116) is fixedly mounted on the outer surface of the first rotating rod (115), and the outer surface of the second bevel gear (116) is meshed with the outer surface of the first bevel gear (114).

7. The biomass boiler flue gas denitrification treatment equipment according to claim 4, characterized in that: The second rotating rod (117) is rotatably connected to the circular groove plate (531) and the first circular bottom plate (10), and is sleeved on the outside of the first rotating rod (115). A third bevel gear (118) is fixedly mounted on the outer surface of the second rotating rod (117). The outer surface of the third bevel gear (118) is meshed with the outer surface of the first bevel gear (114). Cross bars (119) are fixedly mounted on both sides of the outer surface of the second rotating rod (117). Adaptive scraper rods (1111) are fixedly mounted inside the two cross bars (119). The sides of the two adaptive scraper rods (1111) are chamfered.

8. The biomass boiler flue gas denitrification treatment equipment according to claim 1, characterized in that: A biomass boiler body (6) is fixedly mounted on the top of the outer surface of the partition plate (1), a smoke pipe (7) is fixedly mounted on one side of the biomass boiler body (6), and one end of the smoke pipe (7) is connected to the interior of the denitration tank (52).

9. The biomass boiler flue gas denitrification treatment equipment according to claim 1, characterized in that: A denitrification agent storage box (8) is fixedly mounted on the top of the outer surface of the mounting platform (3), and a first connecting pipe (81) is provided on the top of the denitrification agent storage box (8), one end of the first connecting pipe (81) is connected to the denitrification tank (52).

10. The biomass boiler flue gas denitrification treatment equipment according to claim 1, characterized in that: A water pump (9) is fixedly mounted on the top of the outer surface of the mounting platform (3), a second connecting pipe (91) is arranged on the top of the water pump (9), and one end of the second connecting pipe (91) is connected to a first rotating rod (115) penetrating the top of the denitration tank (52) via a connecting shaft.

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