A device for collecting, desulfurizing and denitrating VOC released in a rubber modified asphalt paving process

Abstract

The present application relates to the field of desulfurization and denitrification device, specifically to a VOC release collection desulfurization and denitrification device in rubber modified asphalt paving process, including: collection cover, the collection cover is communicated with the processing box through the gas transmission assembly, for transmitting the VOC generated in the rubber modified asphalt paving process into the processing box, desulfurization mechanism, the desulfurization mechanism includes second auxiliary plate, water cavity is opened in the second auxiliary plate, the bottom of the second auxiliary plate is provided with water outlet hole communicated with the water cavity, the second auxiliary plate is also provided with gas outlet hole, the water cavity is communicated with ammonia water tank, for carrying out desulfurization operation, denitrification mechanism, the denitrification mechanism is located at the top of the desulfurization mechanism, the second drive mechanism is arranged, the desulfurization mechanism and the denitrification mechanism can be separated from the processing box, so that the personnel maintenance and replacement of the functional components in it are facilitated, the desulfurization mechanism and the denitrification mechanism are arranged, so that the VOC gas is uniformly desulfurized and denitrified.

Description

Technical Field

[0001] This invention relates to the field of desulfurization and denitrification devices, and more particularly to a desulfurization and denitrification device for collecting VOC release during the laying process of rubber-modified asphalt. Background Technology

[0002] Rubber-modified asphalt (AR) is a new type of high-quality composite material made by adding rubber powder from waste tires as a modifier to base asphalt in a specialized equipment through a series of processes including high temperature, additives, and shear mixing. It can improve road surface service life, reduce noise, mitigate vibration, enhance thermal stability and thermal cracking resistance, and improve icing resistance.

[0003] VOC is an abbreviation for volatile organic compounds. In a general sense, VOC refers to volatile organic compounds; however, in an environmental context, it refers to a more reactive type of volatile organic compound, namely, the kind that can cause harm.

[0004] After collecting VOCs, the sulfur oxides within them can affect environmental quality. Therefore, we typically use common desulfurization and denitrification systems for further treatment. However, after a period of operation, these systems may experience internal component damage, rendering them ineffective. Furthermore, replacing these internal components is not convenient in conventional desulfurization and denitrification systems. To address this, we designed a collection, desulfurization, and denitrification device for VOCs released during the laying of rubber-modified asphalt, facilitating the replacement of desulfurization and denitrification components. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defects of the existing technology. The present invention proposes a device for collecting, desulfurizing and denitrifying VOCs released during the laying process of rubber modified asphalt.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a device for collecting, desulfurizing, and denitrifying VOCs released during the laying process of rubber-modified asphalt, comprising: A collection cover, which is connected to a processing box via a gas transmission component, is used to transfer VOCs generated during the rubber-modified asphalt paving process into the processing box. The desulfurization mechanism includes a second auxiliary plate, a water cavity is provided in the second auxiliary plate, a water outlet is provided at the bottom of the second auxiliary plate and communicates with the water cavity, and an air outlet is also provided on the second auxiliary plate. The water cavity is connected to an ammonia tank and is used for desulfurization operation. A denitrification mechanism is located at the top of the desulfurization mechanism. The denitrification mechanism includes a first auxiliary plate, a flat plate fixedly connected to one side of the first auxiliary plate, a third fixed plate fixedly connected to the front part of the flat plate near the bottom, a first cylindrical plate fixedly connected to the third fixed plate, a rotating cylinder rotatably connected to the first cylindrical plate via a bearing, a conical vent block fixedly connected to the bottom of the rotating cylinder, a second vent hole communicating with the rotating cylinder at the top of the first cylindrical plate, a second flexible tube connecting the top of the first cylindrical plate to a sliding cylindrical plate, and the second vent hole communicating with the through hole of the sliding cylindrical plate, a second limiting groove on the flat plate, the sliding cylindrical plate being slidably connected to the second limiting groove, and a first driving mechanism for moving it back and forth left and right on the sliding cylindrical plate; a second baffle fixedly connected to the front of the flat plate near the top, a denitrification packing layer fixedly installed between the second baffle and the first auxiliary plate, and an ozone tank connected to the ozone tank via a second pipe placed inside the conical vent block; The processing box is slidably connected to a first auxiliary plate and a second auxiliary plate via a first channel and a second channel, respectively. A first connecting plate is connected between the first auxiliary plate and the second auxiliary plate. A second driving mechanism that enables the left and right movement mechanism is connected to the first connecting plate. An air outlet pipe is fixedly connected to the top of the processing box.

[0007] Furthermore, the gas delivery assembly includes an air intake pump and a first delivery pipe. The collection cover is connected to the bottom of the processing box through the first delivery pipe. An air intake pump is provided in the middle of the first delivery pipe to deliver the gas on the collection cover into the processing box.

[0008] Furthermore, the ammonia tank is connected to the water cavity via a first pipe, and a liquid transfer pump is installed on the first pipe to transfer the ammonia from the ammonia tank to the water cavity.

[0009] Furthermore, the water cavity consists of a main cavity and multiple sub-cavities, with the multiple sub-cavities arranged in a staggered manner with the first vent hole to ensure that the released gas is evenly irrigated by ammonia water.

[0010] Furthermore, a first baffle is fixedly connected to the outer wall of both the first auxiliary plate and the second auxiliary plate. A rubber layer is provided on the first baffle to seal the first channel and the second channel.

[0011] Furthermore, the first driving mechanism includes a vortex groove, and the inner wall of the conical vent block is provided with a vortex groove. The gas force of the second pipe causes the conical vent block to rotate automatically, thereby causing the rotating cylinder fixed to the top of the conical vent block to rotate automatically. A second gear is fixedly connected to the outer wall of the rotating cylinder, and a second rotating column is rotatably connected to the third fixed plate. A first gear meshing with the second gear is fixedly connected to the bottom of the second rotating column, and a disc is fixedly connected to the top of the second rotating column. A second connecting plate is fixedly connected to the outer wall of the disc, and a hinge plate is hinged to the side of the second connecting plate away from the disc. The side of the hinge plate away from the second connecting plate is hinged to the sliding cylinder plate.

[0012] Furthermore, a desulfurization packing layer is fixedly connected to the bottom of the conical ventilation block.

[0013] Furthermore, the second driving mechanism includes a second fixed plate, which is fixedly connected to the processing box. A third mounting plate is fixedly connected to the top of the second fixed plate. A first rotating column is rotatably connected between the processing box and the third mounting plate. A spiral plate is fixedly connected to the outer wall of the first rotating column. An L-shaped plate is fixedly connected to the first connecting plate. A U-shaped limiting plate is fixedly connected to the bottom of the L-shaped plate. The spiral plate is engaged in the groove of the U-shaped limiting plate. The mechanism also includes a motor, the power output end of which is connected to the first rotating column.

[0014] Furthermore, a first fixing plate is fixedly connected to the processing box, and a sliding plate is fixedly connected to the top of the L-shaped plate. The sliding plate is slidably connected to the first fixing plate, and the sliding plate is limited and slidably connected to the sliding plate by a first limiting groove thereon.

[0015] Furthermore, a fourth fixing plate is fixedly connected inside the processing box, and a one-way air outlet valve is installed on the fourth fixing plate. The fourth fixing plate is located in the middle of the third fixing plate and the second auxiliary plate.

[0016] Compared with the prior art, the beneficial effects of the present invention include: after the valve on the ozone tank is opened, ozone gas with a certain pressure will be introduced. At this time, the ozone gas outlet is facing the vortex groove inside the conical ventilation block, causing the conical ventilation block to rotate circumferentially. Through the power point of this rotation and the set operating parts, VOC gas and ozone gas are evenly distributed to the bottom of the denitrification packing layer, thereby enabling the denitrification packing layer to perform denitrification operations better. The desulfurization mechanism, through intermittently arranged water outlets and a first air outlet, ensures that VOC gas is desulfurized evenly. The second drive mechanism can detach the desulfurization and denitrification mechanisms from the treatment box, making it easier for personnel to maintain and replace the functional components inside. Attached Figure Description

[0017] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts. Wherein: Figure 1 The schematic diagram shows a first overall structural schematic diagram according to an embodiment of the present invention; Figure 2 A schematic diagram of a second overall structure according to an embodiment of the present invention is shown; Figure 3 The schematic diagram illustrates a third overall structure according to an embodiment of the present invention; Figure 4 The schematic diagram shows a cross-sectional view of the processing box according to one embodiment of the present invention; Figure 5 The schematic diagram shows a structural schematic of section AA according to an embodiment of the present invention; Figure 6 The illustration shows a proposal based on one embodiment of the present invention. Figure 4 A partially enlarged structural diagram; Figure 7 The diagram schematically shows an enlarged structural view of point B according to an embodiment of the present invention.

[0018] Labels in the diagram: 1. Collection cover; 2. First air delivery pipe; 3. Suction pump; 4. Processing box; 5. Air outlet pipe; 6. First fixing plate; 7. Sliding plate; 8. L-shaped plate; 9. C-shaped limiting plate; 10. Ammonia tank; 11. First rotating column; 12. Second fixing plate; 13. Spiral plate; 14. Third mounting plate; 15. Motor; 16. First pipe; 17. First baffle; 18. First auxiliary plate; 19. First connecting plate; 20. Second pipe; 21. Ozone tank; 22. First limiting slide; 23. Second auxiliary plate; 24. First channel; 25. 26. Second channel; 27. Flat plate; 28. Second baffle; 29. ​​Denitrification packing layer; 30. Third fixing plate; 31. Fourth fixing plate; 32. One-way air outlet valve; 33. Second gear; 34. Water outlet; 35. First air outlet; 36. First gear; 37. Second rotating column; 38. Disc; 39. Conical air block; 41. Desulfurization packing layer; 42. First cylinder plate; 43. Second air outlet; 44. Second hose; 45. Sliding cylinder plate; 46. Second connecting plate; 47. Hinge plate; 48. Second limiting slide groove; 49. Rotating cylinder. Detailed Implementation

[0019] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0020] According to one embodiment of the present invention, Figures 1 to 7 As shown. A device for collecting, desulfurizing, and denitrifying VOCs released during the laying process of rubber-modified asphalt, comprising: Collection cover 1 is connected to treatment box 4 via a gas transmission component, which is used to transfer VOCs generated during the rubber modified asphalt paving process into treatment box 4. The desulfurization mechanism includes a second auxiliary plate 23, a water cavity 34 is provided in the second auxiliary plate 23, a water outlet 33 communicating with the water cavity 34 is provided at the bottom of the second auxiliary plate 23, and a first air outlet 35 is also provided on the second auxiliary plate 23. The water cavity 34 is connected to the ammonia tank 10 and is used for desulfurization operation. The denitrification mechanism is located at the top of the desulfurization mechanism. The denitrification mechanism includes a first auxiliary plate 18, a flat plate 26 fixedly connected to one side of the first auxiliary plate 18, a third fixed plate 29 fixedly connected to the front part of the flat plate 26 near its bottom, a first cylindrical plate 42 fixedly connected to the third fixed plate 29, a rotating cylinder 49 rotatably connected to the first cylindrical plate 42 via a bearing, a conical vent block 39 fixedly connected to the bottom of the rotating cylinder 49, a second vent 43 communicating with the rotating cylinder 49 at the top of the first cylindrical plate 42, and a sliding cylindrical plate connected to the top of the first cylindrical plate 42 via a second flexible hose 44. 45 is connected, and the second air outlet 43 is connected to the through hole of the sliding cylinder plate 45. The plate 26 is provided with a second limiting slide groove 48. The sliding cylinder plate 45 is slidably connected to the second limiting slide groove 48. The sliding cylinder plate 45 is provided with a first driving mechanism that moves it back and forth. The front of the plate 26 near the top is fixedly connected with a second baffle 27. A denitrification packing layer 28 is fixedly installed between the second baffle 27 and the first auxiliary plate 18. It also includes an ozone tank 21. The ozone tank 21 is connected to a second pipe 20. The second pipe 20 is placed inside the conical ventilation block 39. The processing box 4 is slidably connected to the first auxiliary plate 18 and the second auxiliary plate 23 via the first channel 24 and the second channel 25 respectively. The first auxiliary plate 18 and the second auxiliary plate 23 are connected to the first connecting plate 19, and the first connecting plate 19 is connected to the second driving mechanism that moves it left and right. An air outlet pipe 5 is fixedly connected to the top of the processing box 4.

[0021] First, the collection box 1 is placed in the area paved with rubber-modified asphalt. The VOC gas at the bottom of the collection box 1 is collected into the bottom of the treatment box 4 via a gas transmission component. The VOC gas then passes through a desulfurization mechanism followed by a denitrification mechanism. Specifically, after entering the treatment box 4, the VOC gas moves upwards, causing the ammonia in the ammonia tank 10 to be transferred to the water chamber 34. The ammonia then falls from the water outlet 33. The treatment box 4 also has a water outlet valve at the bottom. The VOC gas and ammonia work together to perform desulfurization. Then, the desulfurized VOC gas moves upwards from the first outlet 35, then enters the rotating cylinder 49, the second flexible hose 44, the first cylinder plate 42, and the sliding cylinder plate 45 through the conical ventilation block 39, reaching the denitrification packing layer 28 for denitrification. Finally, the desulfurized and denitrified VOC gas is discharged from the outlet pipe 5.

[0022] Furthermore, during the denitrification process, the sliding cylinder plate 45 moves back and forth about 45 through the first driving mechanism, so that the denitrification packing layer 28 can perform a full denitrification operation.

[0023] When the desulfurization and denitrification mechanisms cannot operate normally, in order to maintain or replace functional components, the second drive mechanism causes the first connecting plate 19 to move to one side, thereby moving the desulfurization mechanism and the denitrification mechanism out of the treatment box 4, which facilitates maintenance or replacement of functional components.

[0024] In an embodiment, such as Figure 1 As shown, the gas delivery assembly includes an air pump 3 and a first delivery pipe 2. The collection cover 1 is connected to the bottom of the processing box 4 through the first delivery pipe 2. The air pump 3 is installed in the middle of the first delivery pipe 2, and the air pump 3 delivers the gas on the collection cover 1 to the processing box 4.

[0025] Specifically, the suction pump 3 is activated to collect the VOC gas in the collection cover 1 to the bottom of the treatment box 4.

[0026] In an embodiment, such as Figure 1 As shown, the ammonia tank 10 is connected to the water chamber 34 through the first pipe 16. A liquid transfer pump is installed on the first pipe 16 to transfer the ammonia from the ammonia tank 10 to the water chamber 34.

[0027] Specifically, the liquid transfer pump is started to transfer ammonia water from the ammonia tank 10 to the water chamber 34 through the first pipe 16.

[0028] In an embodiment, such as Figure 5 As shown, the water chamber 34 consists of a main chamber and multiple sub-chambers. The multiple sub-chambers are staggered with the first vent 35 to ensure that the released gas is evenly sprayed with ammonia water.

[0029] Specifically, the staggered arrangement of the first vent 35 and multiple sub-cavities ensures that VOC gas is desulfurized evenly.

[0030] In an embodiment, such as Figure 1 As shown, the outer walls of the first auxiliary plate 18 and the second auxiliary plate 23 are both fixedly connected to the first baffle 17, and the first baffle 17 is provided with a rubber layer to seal the first channel 24 and the second channel 25.

[0031] Specifically, the first baffle 17 and the rubber layer are designed to prevent VOC gas from leaking during the desulfurization and denitrification process.

[0032] In an embodiment, such as Figure 4 As shown, the first driving mechanism includes a vortex groove. The inner wall of the conical vent block 39 is provided with a vortex groove. The gas force of the second pipe 20 causes the conical vent block 39 to rotate automatically, thereby causing the rotating cylinder 49 fixed on the top of the conical vent block 39 to rotate automatically. The outer wall of the rotating cylinder 49 is fixedly connected to a second gear 32. A second rotating column 37 is rotatably connected to the third fixed plate 29. The bottom of the second rotating column 37 is fixedly connected to a first gear 36 that meshes with the second gear 32. The top of the second rotating column 37 is fixedly connected to a disc 38. The outer wall of the disc 38 is fixedly connected to a second connecting plate 46. A hinge plate 47 is hinged to the side of the second connecting plate 46 away from the disc 38. The side of the hinge plate 47 away from the second connecting plate 46 is hinged to the sliding cylinder plate 45.

[0033] Specifically, the second pipe 20 is placed inside the conical vent block 39, and the outlet of the second pipe 20 faces the vortex groove of the conical vent block 39. The vortex groove is similar to a threaded groove. At this time, the gas pressure causes the conical vent block 39 to rotate circumferentially, which in turn causes the rotating cylinder 49 and the second gear 32 to rotate. The rotating cylinder 49 is rotatably connected to the first cylinder plate 42 through a bearing. The first cylinder plate 42 does not move. At this time, the second gear 32 meshes with the first gear 36, thereby causing the second rotating column 37 and the disc to rotate. The rotating disc 38, via the second connecting plate 46 and hinge plate 47, causes the sliding cylinder plate 45 to move back and forth, ensuring even gas distribution to the denitrification packing layer 28. Furthermore, by adjusting the outlet pressure of the ozone tank 21, the conical ventilation block 39 rotates faster, increasing the speed of gas distribution. For situations with high VOC sulfur concentrations, increasing the outlet pressure of the ozone tank 21 further enhances gas distribution efficiency, resulting in higher denitrification efficiency. This system possesses significant substantive features and represents a marked improvement.

[0034] In an embodiment, such as Figure 6 As shown, a desulfurization packing layer 41 is fixedly connected to the bottom of the conical ventilation block 39.

[0035] Specifically, the desulfurization packing layer 41 is set up to perform desulfurization operations again.

[0036] In an embodiment, such as Figure 1 As shown, the second drive mechanism includes a second fixed plate 12, which is fixedly connected to the processing box 4. A third mounting plate 14 is fixedly connected to the top of the second fixed plate 12. A first rotating column 11 is rotatably connected between the processing box 4 and the third mounting plate 14. A spiral plate 13 is fixedly connected to the outer wall of the first rotating column 11. An L-shaped plate 8 is fixedly connected to the first connecting plate 19. A U-shaped limiting plate 9 is fixedly connected to the bottom of the L-shaped plate 8. The spiral plate 13 is inserted into the groove of the U-shaped limiting plate 9. The mechanism also includes a motor 15, whose power output end is connected to the first rotating column 11.

[0037] Specifically, when the power supply to the motor 15 is turned on, the motor 15 drives the first rotating column 11 and the spiral plate 13 to rotate. The spiral plate 13 cooperates with the U-shaped limiting plate 9 to press, causing the U-shaped limiting plate 9 to move to one side, thereby causing the L-shaped plate 8 and the first connecting plate 19 to move to one side, thus causing the desulfurization mechanism and the denitrification mechanism to move to one side, thereby facilitating the maintenance or replacement of functional components.

[0038] In an embodiment, such as Figure 2 As shown, a first fixed plate 6 is fixedly connected to the processing box 4, and a sliding plate 7 is fixedly connected to the top of the L-shaped plate 8. The sliding plate 7 is slidably connected to the first fixed plate 6, and the sliding plate 7 is limited and slidably connected to the first fixed plate 6 through the first limiting groove 22 on it.

[0039] Specifically, the mutually cooperating sliding plate 7 and the first limiting slide groove 22 enable the desulfurization mechanism and the denitrification mechanism to move stably to one side.

[0040] In an embodiment, such as Figure 4 As shown, a fourth fixing plate 30 is fixedly connected inside the processing box 4. A one-way air valve 31 is installed on the fourth fixing plate 30. The fourth fixing plate 30 is located in the middle of the third fixing plate 29 and the second auxiliary plate 23.

[0041] Specifically, the one-way exhaust valve 31 allows the ozone gas to stably cause the conical ventilation block 39 to rotate circumferentially, and also ensures the stable operation of the internal mechanism of the treatment box 4.

[0042] The denitrification packing layer consists of active components and a packing carrier. By mass percentage, the active components include: 5-15 wt% vanadium pentoxide, 3-8 wt% cobalt oxide, 3-5 wt% tungsten trioxide, 1-2 wt% heteropoly acid, and 0.5-1 wt% isopropachlor. The packing carrier includes: 20-30 wt% vermiculite, 6-10 wt% ball clay, 3-10 wt% nano titanium dioxide, and 7-12 wt% glass fiber.

[0043] The desulfurization packing layer is composed of activated coke, activated carbon, porous ceramics, and diatomaceous earth mixed in a mass ratio of 7:2:3:1.

[0044] In this embodiment, the collection box 1 is first placed in the area paved with rubber-modified asphalt. The suction pump 3 is activated to collect the VOC gas in the collection cover 1 to the bottom of the treatment box 4. At this time, the VOC gas first passes through the desulfurization mechanism and then through the denitrification mechanism. Specifically, after the VOC gas enters the treatment box 4, it moves upward, causing the ammonia water in the ammonia water tank 10 to be transferred to the water chamber 34. The ammonia water then falls from the water outlet 33. The water outlet 33 and the first air outlet 35 are staggered to ensure that the ammonia water and VOC gas are in full contact, facilitating efficient desulfurization. The bottom of the treatment box 4 is also equipped with a water outlet valve. Then, the desulfurized VOC gas moves upward from the first outlet 35 to the one-way outlet valve 31 and flows upward. Then, it enters the rotating cylinder 49, the second hose 44, the first cylinder plate 42, and the sliding cylinder plate 45 from the conical ventilation block 39, and then reaches the denitrification packing layer 28 to carry out denitrification. Finally, the desulfurized and denitrified VOC gas is discharged from the outlet pipe 5.

[0045] During the denitrification process, the second pipe 20 is placed inside the conical vent block 39, and the outlet of the second pipe 20 faces the vortex groove of the conical vent block 39. The vortex groove is similar to a threaded groove. At this time, the gas pressure at the outlet causes the conical vent block 39 to rotate circumferentially, which in turn causes the rotating cylinder 49 and the second gear 32 to rotate. The rotating cylinder 49 is rotatably connected to the first cylinder plate 42 through a bearing. The first cylinder plate 42 does not move. At this time, the second gear 32 meshes with the first gear 36, thereby causing the second rotating column 37 and the disc 38 to rotate. The disc 38, via the second connecting plate 46 and hinge plate 47, causes the sliding cylinder plate 45 to move back and forth, thus evenly distributing the gas from the sliding cylinder plate 45 to the denitrification packing layer 28. Furthermore, by adjusting the outlet pressure of the ozone tank 21, the conical ventilation block 39 rotates faster, increasing the speed of gas distribution and ensuring thorough denitrification of the denitrification packing layer 28. When the VOC sulfur concentration is high, increasing the outlet pressure of the ozone tank 21 further enhances gas distribution efficiency, resulting in higher denitrification efficiency. This system possesses outstanding substantive features and represents a significant advancement.

[0046] When the desulfurization and denitrification mechanisms cannot operate normally, in order to maintain or replace functional components, the power supply of the motor 15 is turned on. The motor 15 drives the first rotating column 11 and the spiral plate 13 to rotate. The spiral plate 13 cooperates with the U-shaped limiting plate 9 to press, causing the U-shaped limiting plate 9 to move to one side, thereby causing the L-shaped plate 8 and the first connecting plate 19 to move to one side, thus causing the desulfurization mechanism and the denitrification mechanism to move to one side, thereby facilitating the maintenance or replacement of functional components.

[0047] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A collection desulfurization and denitrification device of VOC released in a rubber modified asphalt paving process, characterized by, include: A collection cover (1) is connected to a processing box (4) via a gas transmission assembly, which is used to transmit the VOCs generated during the rubber-modified asphalt paving process to the processing box (4). The desulfurization mechanism includes a second auxiliary plate (23), a water cavity (34) is provided in the second auxiliary plate (23), a water outlet (33) communicating with the water cavity (34) is provided at the bottom of the second auxiliary plate (23), and a first air outlet (35) is also provided on the second auxiliary plate (23). The water cavity (34) is connected to the ammonia tank (10) and is used for desulfurization operation. A denitrification mechanism is located at the top of the desulfurization mechanism. The denitrification mechanism includes a first auxiliary plate (18), a flat plate (26) is fixedly connected to one side of the first auxiliary plate (18), a third fixed plate (29) is fixedly connected to the front part of the flat plate (26) near the bottom, a first cylindrical plate (42) is fixedly connected to the third fixed plate (29), a rotating cylinder (49) is rotatably connected to the first cylindrical plate (42) through a bearing, a conical vent block (39) is fixedly connected to the bottom of the rotating cylinder (49), a second vent hole (43) communicating with the rotating cylinder (49) is opened at the top of the first cylindrical plate (42), and the top of the first cylindrical plate (42) is connected to a sliding cylindrical plate (49) through a second flexible hose (44). 45) Connected, and the second air outlet (43) is connected to the through hole of the sliding cylinder plate (45). The plate (26) is provided with a second limiting slide groove (48). The sliding cylinder plate (45) is limited and slidably connected to the second limiting slide groove (48). The sliding cylinder plate (45) is provided with a first driving mechanism that moves back and forth to the left and right. The front of the plate (26) near the top is fixedly connected with a second baffle (27). A denitrification packing layer (28) is fixedly installed between the second baffle (27) and the first auxiliary plate (18). It also includes an ozone tank (21). The ozone tank (21) is connected with a second pipe (20). The second pipe (20) is placed inside the conical ventilation block (39). The processing box (4) is connected to a first auxiliary plate (18) and a second auxiliary plate (23) through a first channel (24) and a second channel (25) respectively. A first connecting plate (19) is connected between the first auxiliary plate (18) and the second auxiliary plate (23). A second driving mechanism is connected to the first connecting plate (19) to move it left and right. The top of the processing box (4) is fixedly connected to an air outlet pipe (5); The first driving mechanism includes a vortex groove. The inner wall of the conical vent block (39) is provided with a vortex groove. The gas force of the second pipe (20) causes the conical vent block (39) to rotate automatically, thereby causing the rotating cylinder (49) fixed on the top of the conical vent block (39) to rotate automatically. The outer wall of the rotating cylinder (49) is fixedly connected to a second gear (32). The third fixed plate (29) is rotatably connected to a second rotating column (37). The bottom of the second rotating column (37) is fixedly connected to a first gear (36) that meshes with the second gear (32). The top of the second rotating column (37) is fixedly connected to a disc (38). The outer wall of the disc (38) is fixedly connected to a second connecting plate (46). The side of the second connecting plate (46) away from the disc (38) is hinged to a hinge plate (47). The side of the hinge plate (47) away from the second connecting plate (46) is hinged to the sliding cylinder plate (45).

2. The device for collecting, desulfurizing, and denitrifying VOCs released during the laying process of rubber-modified asphalt according to claim 1, characterized in that, The gas delivery assembly includes an air pump (3) and a first delivery pipe (2). The collection cover (1) is connected to the bottom of the processing box (4) through the first delivery pipe (2). The air pump (3) is provided in the middle of the first delivery pipe (2). The air pump (3) delivers the gas on the collection cover (1) to the processing box (4).

3. The device for collecting, desulfurizing, and denitrifying VOCs released during the laying process of rubber-modified asphalt according to claim 2, characterized in that, The ammonia tank (10) is connected to the water chamber (34) through a first pipe (16). A liquid transfer pump is provided on the first pipe (16) to transfer the ammonia from the ammonia tank (10) to the water chamber (34).

4. The device for collecting, desulfurizing, and denitrifying VOCs released during the laying process of rubber-modified asphalt according to claim 3, characterized in that, The water cavity (34) consists of a main cavity and multiple sub-cavities. The multiple sub-cavities are staggered with the first air outlet (35) to ensure that the released gas is evenly irrigated with ammonia water.

5. The device for collecting, desulfurizing, and denitrifying VOCs released during the laying process of rubber-modified asphalt according to claim 4, characterized in that, The outer walls of the first auxiliary plate (18) and the second auxiliary plate (23) are both fixedly connected with a first baffle (17). The first baffle (17) is provided with a rubber layer to seal the first channel (24) and the second channel (25).

6. The device for collecting, desulfurizing, and denitrifying VOCs released during the laying process of rubber-modified asphalt according to claim 5, characterized in that, The bottom of the conical ventilation block (39) is fixedly connected to a desulfurization packing layer (41).

7. The device for collecting, desulfurizing, and denitrifying VOCs released during the laying process of rubber-modified asphalt according to claim 6, characterized in that, The second driving mechanism includes a second fixed plate (12), which is fixedly connected to the processing box (4). A third mounting plate (14) is fixedly connected to the top of the second fixed plate (12). A first rotating column (11) is rotatably connected between the processing box (4) and the third mounting plate (14). A spiral plate (13) is fixedly connected to the outer wall of the first rotating column (11). An L-shaped plate (8) is fixedly connected to the first connecting plate (19). A U-shaped limiting plate (9) is fixedly connected to the bottom of the L-shaped plate (8). The spiral plate (13) is stuck in the groove of the U-shaped limiting plate (9). The mechanism also includes a motor (15), whose power output end is connected to the first rotating column (11).

8. The device for collecting, desulfurizing, and denitrifying VOCs released during the laying process of rubber-modified asphalt according to claim 7, characterized in that, A first fixing plate (6) is fixedly connected to the processing box (4), and a sliding plate (7) is fixedly connected to the top of the L-shaped plate (8). The sliding plate (7) is slidably connected to the first fixing plate (6), and the first fixing plate (6) is slidably connected to the sliding plate (7) by a first limiting groove (22) on it.

9. The device for collecting, desulfurizing, and denitrifying VOCs released during the laying process of rubber-modified asphalt according to claim 1, characterized in that, The processing box (4) is fixedly connected to a fourth fixing plate (30), and a one-way air valve (31) is installed on the fourth fixing plate (30). The fourth fixing plate (30) is located between the third fixing plate (29) and the second auxiliary plate (23).

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