Wet dust removal filtering assembly of asphalt pavement maintenance truck

Abstract

The invention relates to the technical field of dust removal and filtration, and discloses a wet dust removal and filtration assembly of an asphalt pavement maintenance truck, which comprises a front group of supports and a rear group of supports, the front group of supports and the rear group of supports are rotatably connected with a heating stirring tank through driving support pieces, and an air guide assembly at the upper part in the heating stirring tank is communicated with a filtration box body above the front end of a sealing end cover assembly. The bottom of the filtering box body is sequentially communicated with a filtering shell and a negative pressure shell from front to back; the heating and stirring tank and the asphalt raw material stirring assembly rotate synchronously, and the rotating directions of the heating and stirring tank and the asphalt raw material stirring assembly are opposite, so that crushing operation and stirring of blocky asphalt pavement waste in the heating and stirring tank can be achieved, and the heating and melting efficiency of the asphalt pavement waste can be improved; and negative pressure is formed in the negative pressure shell, and smoke and dust in the heating and stirring tank are introduced into the filtering box body through the gas guide assembly and then enter the clean water tank through the smoke dust pipeline, so that rapid dissolution and dust removal of the smoke, the dust and the clean water can be realized.

Description

Technical Field

[0001] The invention relates to the technical field of stacking devices, in particular to a wet dust removal and filtering component for an asphalt pavement maintenance vehicle. Background Art

[0002] When maintaining asphalt pavement, asphalt pavement maintenance vehicles are important equipment. Usually, the asphalt on the damaged road surface is shoveled up, directly crushed and heated, and then mixed with new materials to make asphalt material that is directly used to repair the damaged road surface. When the shoveled asphalt is damaged, dust will be generated. When it is crushed and heated, asphalt fume will be generated. If it is not treated or simply sprayed with clean water to remove dust, it will cause environmental pollution and is not good for the health of workers. The existing asphalt pavement maintenance vehicles have poor efficiency in dealing with the damage and heating and stirring of the shoveled asphalt waste. When filtering dust and asphalt fume, the filter component is easily blocked, resulting in inadequate filtering treatment. For this reason, we have launched a wet dust removal and filtering component for asphalt pavement maintenance vehicles. Summary of the invention

[0003] The object of the present invention is to provide a wet dust removal and filtering assembly for an asphalt pavement maintenance vehicle to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wet dust removal and filtering assembly for an asphalt pavement maintenance vehicle, comprising two groups of front and rear supports, the two groups of front and rear supports being rotatably connected with a heating and stirring tank by a driving support, the rear end of the heating and stirring tank being sealed by a sealing end cover assembly, the sealing end cover assembly comprising a sealing disk and a plug-in ring seat arranged at the front end of the sealing disk, the plug-in ring seat being inserted into the rear end of the heating and stirring tank; The air guide assembly above the interior of the heating and stirring tank is connected to the filter box above the front end of the sealing end cover assembly, and the bottom of the filter box is connected to the filter housing and the negative pressure housing in sequence from front to back; A mounting frame is connected between the front end of the sealing end cover assembly and the front support, a clean water tank is installed in the middle of the rear end of the mounting frame, and a driving mechanism driven by a motor is provided at the front end of the mounting frame; The driving mechanism drives the heating and stirring tank to rotate by driving the support member, and also drives the asphalt raw material stirring assembly arranged in the center of the heating and stirring tank, the filter element assembly arranged in the filter housing, and the fan blades arranged in the negative pressure housing to rotate through the connecting assembly; The rotation of the fan blades forms negative pressure inside the negative pressure shell, and the smoke and dust inside the heating and stirring tank are introduced into the filter box through the air guide component, and then enter the clean water tank through the smoke and dust duct. At the same time, the smoke and dust are filtered through the filter element assembly, and an open through groove is provided at the front part of the filter shell, and an inclined scraper is provided at the bottom of the open through groove. The rear end of the inclined scraper is close to the front end surface of the filter element assembly. When the filter element assembly rotates, the inclined scraper is used to scrape off impurities accumulated on the front end surface of the filter element assembly.

[0005] Preferably, an arc-shaped groove is provided at the upper end of the support, an arc-shaped inner groove is provided at the top of the arc-shaped groove, and the driving support member comprises a driving wheel and a supporting wheel movably arranged at the middle part and the top of both sides of the arc-shaped inner groove, respectively, and a driving rod is also connected between the front and rear sets of driving wheels; The heating and stirring tank is supported on a driving wheel and a supporting wheel.

[0006] Preferably, a limiting ring is provided on the surface of the heating and stirring tank, and the limiting ring is located on the inner side of the corresponding driving wheel and supporting wheel.

[0007] Preferably, the air guide assembly is an air guide box connected to the upper front end of the sealing disk, the upper and lower surfaces of the air guide box are evenly arc-shaped, and a recessed groove is provided in the middle of the lower end of the air guide box, and the smoke holes evenly spaced on the recessed groove are connected to the inner cavity of the air guide box. The filter box body is connected to the upper rear end of the sealing disk, and the filter box body is connected to the inner cavity of the air guide box.

[0008] Preferably, the mounting frame includes a U-shaped frame fixed to the rear end of the sealing disk and an L-shaped frame connected between the rear end bottom of the U-shaped frame and the front support; The motor is fixed to the rear end of the lower part of the L-shaped frame, and the driving mechanism includes a first gear, a second gear and a third gear arranged in sequence from top to bottom at the front part of the L-shaped frame, and the first gear is meshed with the third gear through the second gear; The rear end of the driving rod is fixedly connected to the middle part of the third gear.

[0009] Preferably, the asphalt raw material stirring assembly comprises a first stirring shaft centrally arranged inside the heating stirring tank and stirring rods evenly spaced on the first stirring shaft; The rear end of the stirring rod extends out of the heating stirring tank and is fixedly connected to the first gear; The connecting assembly includes a first pulley fixed on the rear end of the stirring rod, a connecting shaft fixed between the filter element assembly and the fan blades, a second pulley fixed on the connecting shaft, and a belt connected between the first pulley and the second pulley.

[0010] Preferably, a connecting tube is provided at the front end of the middle part of the sealing disk, two sets of bearings are provided inside the connecting tube, and the bearings are sleeved on the first stirring shaft.

[0011] Preferably, the filter element assembly comprises a rotating cylinder arranged inside the filter housing, an intermediate cylinder arranged centrally inside the rotating cylinder, fastening plates connected between the outer side of the intermediate cylinder and the inner wall of the rotating cylinder at equal intervals, and an activated carbon block embedded between adjacent fastening plates; The front end of the connecting shaft is fixedly connected to the intermediate cylinder.

[0012] Preferably, a second stirring shaft is centrally disposed inside the clean water tank, and a stirring blade is disposed on the second stirring shaft. The front end of the second stirring shaft penetrates the clean water tank and the L-shaped frame and is fixed to the middle of the second gear.

[0013] Preferably, the smoke duct includes a first duct connected to the lower rear end of the negative pressure shell and a second duct connected to the bottom of the first duct, the bottom of the second duct extends into the clean water tank, and a water inlet pipe and a sewage pipe are respectively provided at the upper and lower ends of the rear of the clean water tank.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the driving mechanism of the present invention drives the heating and stirring tank to rotate by driving the support member, and also drives the asphalt raw material stirring assembly arranged in the center of the heating and stirring tank to rotate through the connecting assembly, and the two rotation directions are opposite, so that the blocky asphalt pavement waste in the heating and stirring tank can be crushed and stirred, which is beneficial to improving the heating and melting efficiency of the asphalt pavement waste; The driving mechanism also drives the filter element assembly arranged inside the filter housing and the fan blades arranged inside the negative pressure housing to rotate. The rotation of the fan blades forms a negative pressure inside the negative pressure housing. The smoke and dust inside the heating and stirring tank are introduced into the filter housing through the air guide assembly and then enter the clean water tank through the smoke and dust pipe. In this way, the smoke and dust can be quickly dissolved and removed with clean water. At the same time, smoke and dust are filtered through the filter element assembly, and an open through groove is provided at the front of the filter shell, and an inclined scraper is provided at the bottom of the open through groove. The rear end of the inclined scraper is close to the front end surface of the filter element assembly. When the filter element assembly rotates, the inclined scraper is used to scrape off impurities accumulated on the front end surface of the filter element assembly to avoid clogging of the filter element assembly and increase the service life of the filter element assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the structure of the connection between the support and the driving support member of the present invention; Figure 3 This is a schematic diagram of the first three-dimensional structure of the heating and stirring tank of the present invention; Figure 4 This is a second three-dimensional structural schematic diagram of the heating and stirring tank of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the connection between the filter box body, the sealing end cover assembly and the driving mechanism of the present invention; Figure 6 For the present invention Figure 5 Schematic diagram of the three-dimensional structure from another perspective; Figure 7 For the present invention Figure 6 Schematic diagram of the three-dimensional structure from another perspective; Figure 8 For the present invention Figure 5 A first cross-sectional structural schematic diagram of; Fig. 9 For the present invention Figure 5 A second cross-sectional structural schematic diagram of; Fig.10 For the present invention Figure 5 A third cross-sectional structural schematic diagram of ; Fig.11 For the present invention Fig.10 The enlarged structural diagram at A in the middle; Fig.12 It is a three-dimensional structural schematic diagram of the filter element assembly of the present invention; Fig.13 It is a schematic side view of the structure of the present invention as a whole; Fig.14 It is a schematic cross-sectional structural diagram of the present invention as a whole.

[0016] In the figure: 1, support; 2, heating and stirring tank; 3, limit ring; 4, filter box; 5, clean water tank; 6, motor; 7, drive rod; 8, first gear; 9, second gear; 10, third gear; 11, arc groove; 12, arc inner groove; 13, drive wheel; 14, support wheel; 15, open through groove; 16, scraper; 17, discharge tank; 18, inclined sheet; 19, sealing plate; 20, plug-in ring seat; 21, air guide box; 22, first stirring shaft; 23, stirring rod; 24, U-shaped frame; 25, L-shaped frame ; 26. Drain pipe; 27. Water inlet pipe; 28. Second pipeline; 29. ​​First pipeline; 30. Negative pressure shell; 31. Filter shell; 32. First pulley; 33. Second pulley; 34. Belt; 35. Connecting shaft; 36. Recessed groove; 37. Smoke hole; 38. Bearing; 39. Connecting cylinder; 40. Fan blade; 41. Second stirring shaft; 42. Stirring blade; 43. Filter element assembly; 431. Rotating cylinder; 432. Intermediate cylinder; 433. Fastening plate; 434. Activated carbon block; 44. Oblique scraper. DETAILED DESCRIPTION

[0017] 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. Example

[0018] See also Figure 1-14 , the present invention provides a technical solution: A wet dust removal and filtering assembly for an asphalt pavement maintenance vehicle comprises two groups of front and rear supports 1, on which a heating and stirring tank 2 is rotatably connected by a driving support member; The upper end of the support 1 is provided with an arc groove 11, and the top of the arc groove 11 is provided with an arc inner groove 12. The driving support member includes a driving wheel 13 and a supporting wheel 14 which are movably arranged in the middle and the top of both sides of the arc inner groove 12, and a driving rod 7 is also connected between the front and rear sets of driving wheels 13; The heating stirring tank 2 is supported on the driving wheel 13 and the supporting wheel 14. In this way, when the motor 6 drives the driving rod 7 to rotate through the third gear 10, the driving wheel 13 on the driving rod 7 and the heating stirring tank 2 generate friction, thereby driving the heating stirring tank 2 to rotate.

[0019] The supporting wheels 14 are supported on both sides of the heating and stirring tank 2 to further improve the stability of the heating and stirring tank 2 during rotation.

[0020] A limiting ring 3 is provided on the surface of the heating stirring tank 2, and the limiting ring 3 is located on the inner side of the corresponding driving wheel 13 and the supporting wheel 14. Such a setting can prevent the heating stirring tank 2 from moving forward and backward when the heating stirring tank 2 rotates, so that the heating stirring tank 2 rotates stably and the position does not shift.

[0021] A discharge tank 17 with a gradually narrowing opening is provided at the front end of the heating and stirring tank 2. Such a setting allows the asphalt raw material to be retained in the heating and stirring tank 2 when the heating and stirring tank 2 rotates clockwise; scrapers 16 are evenly spaced on the inner wall of the heating and stirring tank 2. The setting of the scrapers 16 can improve the stirring effect of the asphalt raw material; The inner wall of the discharge tank 17 is evenly spaced with inclined plates 18 . When the heating and stirring tank 2 rotates counterclockwise, the inclined plates 18 can continuously guide the asphalt raw materials in the heating and stirring tank 2 into the discharge tank 17 , and finally discharge them through the front end of the discharge tank 17 .

[0022] The rear end of the heating and stirring tank 2 is sealed by a sealing end cover assembly, which includes a sealing disk 19 and a plug-in ring seat 20 arranged at the front end of the sealing disk 19, and the plug-in ring seat 20 is inserted into the rear end of the heating and stirring tank 2. Such an arrangement allows the sealing end cover assembly to remain stationary when the heating and stirring tank 2 rotates, and the sealing end cover assembly can seal the rear end of the heating and stirring tank 2 to prevent the asphalt raw material from flowing out from the rear end. The air guide assembly above the interior of the heating and stirring tank 2 is connected to the filter box 4 above the front end of the sealing end cover assembly, and the bottom of the filter box 4 is connected to the filter housing 31 and the negative pressure housing 30 in sequence from front to back; The air guide assembly is an air guide box 21 connected to the upper front end of the sealing disk 19. The upper and lower surfaces of the air guide box 21 are evenly arc-shaped, and a recessed groove 36 is provided in the middle of the lower end of the air guide box 21. The smoke holes 37 distributed at equal intervals on the recessed groove 36 are connected to the inner cavity of the air guide box 21. The filter box body 4 is connected to the upper rear end of the sealing disk 19, and the filter box body 4 is connected to the inner cavity of the air guide box 21.

[0023] The air guide box 21 extends into the heating and stirring tank 2, and is located at the upper side of the heating and stirring tank 2, that is, the air guide box 21 is located between the scraper 16 on the top of the heating and stirring tank 2 and the stirring rod 23 placed on the first stirring shaft 22, and they do not contact each other, so that when the heating and stirring tank 2 and the first stirring shaft 22 rotate, the air guide box 21 is in a stationary state; As the first stirring shaft 22 rotates, the stirring rod 23 always rotates under the air guide box 21, and the asphalt raw material falling through the top wall of the heating stirring tank 2 falls through the top of the air guide box 21, so as to prevent the asphalt raw material from entering the recessed groove 36, thereby preventing the asphalt raw material from clogging the smoke hole 37.

[0024] A mounting frame is connected between the front end of the sealing end cover assembly and the front support 1, a clean water tank 5 is installed in the middle of the rear end of the mounting frame, and a driving mechanism driven by a motor 6 is provided at the front end of the mounting frame; The motor 6 is controlled by PLC, and the model of the motor 6 is Mitsubishi HC-SF202B motor, Mitsubishi HG-SR702B motor, Mitsubishi HK-KT7M3UWBJ or other models that meet the use requirements.

[0025] The mounting frame includes a U-shaped frame 24 fixed to the rear end of the sealing plate 19 and an L-shaped frame 25 connected between the rear end bottom of the U-shaped frame 24 and the front support 1; The motor 6 is fixed to the rear end of the lower part of the L-shaped frame 25, and the driving mechanism includes a first gear 8, a second gear 9 and a third gear 10 arranged in sequence from top to bottom at the front part of the L-shaped frame 25, and the first gear 8 is meshed with the third gear 10 through the second gear 9; The rear end of the driving rod 7 is fixedly connected to the middle of the third gear 10 .

[0026] The diameters of the first gear 8, the second gear 9 and the third gear 10 are gradually increased, so that when the motor 6 drives the third gear 10 to rotate, the rotation speeds of the first gear 8, the second gear 9 and the third gear 10 are increased in sequence; that is, the rotation speed of the first gear 8 is greater than the rotation speed of the second gear 9, and the rotation speed of the second gear 9 is greater than the rotation speed of the third gear 10; In this way, when the first gear 8 drives the filter element assembly 43 and the fan blade 40 to rotate through the belt 34 , the second pulley 33 and the connecting shaft 35 , the fan blade 40 rotates at a high speed to form a negative pressure in the negative pressure housing 30 .

[0027] A second stirring shaft 41 is centrally disposed inside the clean water tank 5, and a stirring blade 42 is disposed on the second stirring shaft 41. The front end of the second stirring shaft 41 penetrates the clean water tank 5 and the L-shaped frame 25 and is fixed to the middle of the second gear 9. In this way, when the stirring blade 42 rotates, the clean water in the clean water tank 5 is stirred, which can improve the rapid dissolution of smoke and clean water entering the clean water tank 5 through the second pipe 28.

[0028] The third gear 10 drives the heating stirring tank 2 to rotate through the driving rod 7 and the driving wheel 13. The third gear 10 drives the second stirring shaft 41 and the stirring blade 42 to rotate through the second gear 9. The second gear 9 drives the first stirring shaft 22 and the stirring rod 23 to rotate through the first gear 8. The first gear 8 drives the filter element assembly 43 and the fan blade 40 to rotate through the belt 34, the second pulley 33 and the connecting shaft 35.

[0029] In this way, the heating and stirring tank 2 and the first stirring shaft 22 can rotate in opposite directions, so that when the two rotate at the same time, the crushing efficiency of the blocky asphalt pavement waste inside the heating and stirring tank 2 is improved, and the mixing efficiency of the crushed and heated asphalt pavement waste is improved, so that after adding new raw materials, new asphalt material can be quickly produced for on-site pavement paving.

[0030] The driving mechanism drives the heating and stirring tank 2 to rotate by driving the supporting member, and also drives the asphalt raw material stirring assembly arranged in the center of the heating and stirring tank 2, the filter element assembly 43 arranged in the filter housing 31, and the fan blade 40 arranged in the negative pressure housing 30 to rotate through the connecting assembly; The asphalt raw material stirring assembly includes a first stirring shaft 22 centrally arranged inside the heating stirring tank 2 and stirring rods 23 evenly spaced on the first stirring shaft 22; The rear end of the stirring rod 23 extends out of the heating and stirring tank 2 and is fixedly connected to the first gear 8; The connecting assembly includes a first pulley 32 fixed on the rear end of the stirring rod 23, a connecting shaft 35 fixed between the filter element assembly 43 and the fan blade 40, a second pulley 33 fixed on the connecting shaft 35, and a belt 34 connected between the first pulley 32 and the second pulley 33.

[0031] A connecting tube 39 is provided at the front end of the middle of the sealing disk 19 . Two sets of bearings 38 are provided inside the connecting tube 39 . The bearings 38 are sleeved on the first stirring shaft 22 .

[0032] The rotation of the fan blades 40 forms a negative pressure inside the negative pressure shell 30, and the smoke and dust inside the heating and stirring tank 2 are introduced into the filter box 4 through the air guide component, and then enter the clean water tank 5 through the smoke and dust duct. At the same time, the smoke and dust are filtered through the filter element assembly 43, and an open groove 15 is provided at the front part of the filter shell 31, and an inclined scraper 44 is provided at the bottom of the open groove 15. The rear end of the inclined scraper 44 is close to the front end surface of the filter element assembly 43. When the filter element assembly 43 rotates, the inclined scraper 44 is used to scrape off impurities accumulated on the front end surface of the filter element assembly 43.

[0033] The filter element assembly 43 includes a rotating cylinder 431 disposed inside the filter housing 31, an intermediate cylinder 432 disposed in the center inside the rotating cylinder 431, fastening plates 433 connected between the outer side of the intermediate cylinder 432 and the inner wall of the rotating cylinder 431 at equal intervals, and activated carbon blocks 434 embedded between adjacent fastening plates 433; The front end of the connecting shaft 35 is fixedly connected to the intermediate cylinder 432. A mesh baffle is also provided between the front and rear ends of the adjacent fastening plates 433 to prevent the activated carbon block 434 from falling off.

[0034] When the smoke inside the heating and stirring tank 2 enters the filter box 4 through the air guide box 21, the connecting shaft 35 drives the filter element assembly 43 to rotate rapidly, so that the smoke and the surface of the filter element assembly 43 are in contact with each other for a period of time, thereby preventing the smoke from only passing through the fixed position of the filter element assembly 43 and causing the surface of the filter element assembly 43 at that position to be blocked, thereby increasing the service life of the filter element assembly 43.

[0035] The smoke and dust duct includes a first pipe 29 connected to the lower part of the rear end of the negative pressure shell 30 and a second pipe 28 connected to the bottom of the first pipe 29. The bottom of the second pipe 28 extends into the interior of the clean water tank 5. The upper and lower ends of the rear part of the clean water tank 5 are respectively provided with a water inlet pipe 27 and a sewage pipe 26.

[0036] Specifically, when in use, after the asphalt pavement is shoveled up, the blocky asphalt pavement waste is put into the heating and stirring tank 2 through the discharge tank 17, and then the motor 6 works, so that the third gear 10 drives the heating and stirring tank 2 to rotate through the driving rod 7 and the driving wheel 13, the third gear 10 drives the second stirring shaft 41 and the stirring blade 42 to rotate through the second gear 9, the second gear 9 drives the first stirring shaft 22 and the stirring rod 23 to rotate through the first gear 8, and the first gear 8 drives the filter element assembly 43 and the fan blade 40 to rotate through the belt 34, the second pulley 33 and the connecting shaft 35; The heated stirring tank 2 rotates, and the scraper 16 on the inner wall thereof and the stirring rod 23 on the first stirring shaft 22 jointly realize the crushing operation of the blocky asphalt pavement waste, and dust is generated in the process; At this time, due to the high-speed rotation of the fan blades 40, negative pressure is formed inside the negative pressure housing 30, and the dust enters the air guide box 21 through the smoke holes 37 under the action of suction, and then enters the filter box 4 through the air guide box 21; The dust enters the negative pressure housing 30 after being filtered by the activated carbon block 434 on the filter element assembly 43, and the fan blade 40 rotates at a high speed to introduce the filtered air in the negative pressure housing 30 into the clean water tank 5 through the first pipe 29 and the second pipe 28; At this time, since the third gear 10 drives the second stirring shaft 41 and the stirring blade 42 to rotate through the second gear 9, the air is further quickly connected with the clean water in the clean water tank 5, so that the dust in the air that has not been filtered out is dissolved in the clean water; Subsequently, as the heating and mixing tank 2 is heated, the high temperature causes the asphalt in the crushed asphalt pavement waste to gradually melt, and asphalt fume is generated; As the fan blades 40 rotate at high speed, negative pressure is formed inside the negative pressure housing 30, and the asphalt smoke enters the air guide box 21 through the smoke holes 37 under the action of suction, and then enters the filter box 4 through the air guide box 21; The asphalt fume is filtered by the activated carbon block 434 on the filter element assembly 43 and enters the negative pressure housing 30. The fan blade 40 rotates at a high speed to introduce the filtered asphalt fume in the negative pressure housing 30 into the clean water tank 5 through the first pipe 29 and the second pipe 28. At this time, since the third gear 10 drives the second stirring shaft 41 and the stirring blade 42 to rotate through the second gear 9, the asphalt fume is further quickly connected with the clean water in the clean water tank 5, so that the asphalt fume that has not been filtered out in the asphalt fume is dissolved in the clean water; After the dust and asphalt fume are adsorbed and filtered by the activated carbon block 434 of the filter element assembly 43, the dust and asphalt fume impurities will gather on the front end surface of the filter element assembly 43. At this time, as the filter element assembly 43 rotates, the rear end of the inclined scraper 44 is close to the front end surface of the filter element assembly 43. The inclined scraper 44 is used to scrape off the impurities accumulated on the front end surface of the filter element assembly 43. The impurities fall through the open groove 15, which can further improve the service life of the filter element assembly 43.

[0037] 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 wet dust removal and filtering assembly for an asphalt pavement maintenance vehicle, comprising two sets of front and rear supports (1), characterized in that: The front and rear two sets of supports (1) are rotatably connected to a heating and stirring tank (2) by a driving support member, and the rear end of the heating and stirring tank (2) is sealed by a sealing end cover assembly, wherein the sealing end cover assembly comprises a sealing disk (19) and a plug-in ring seat (20) arranged at the front end of the sealing disk (19), and the plug-in ring seat (20) is inserted into the rear end of the heating and stirring tank (2); The air guide assembly at the upper part of the interior of the heating and stirring tank (2) is connected to the filter box (4) at the upper part of the front end of the sealing end cover assembly, and the bottom of the filter box (4) is connected to the filter housing (31) and the negative pressure housing (30) in sequence from front to back; A mounting frame is connected between the front end of the sealing end cover assembly and the front support (1), a clean water tank (5) is installed in the middle of the rear end of the mounting frame, and a driving mechanism driven by a motor (6) is provided at the front end of the mounting frame; The driving mechanism drives the heating and stirring tank (2) to rotate by driving the support member, and also drives the asphalt raw material stirring assembly arranged centrally inside the heating and stirring tank (2), the filter element assembly (43) arranged inside the filter housing (31), and the fan blade (40) arranged inside the negative pressure housing (30) to rotate through the connecting assembly; The fan blades (40) rotate to form a negative pressure inside the negative pressure housing (30), and the smoke and dust inside the heating and stirring tank (2) are introduced into the filter box (4) through the air guide component, and then enter the clean water tank (5) through the smoke and dust duct. At the same time, the smoke and dust are filtered through the filter element component (43), and the front part of the filter housing (31) is provided with an open groove (15), and the bottom of the open groove (15) is provided with an inclined scraper (44), and the rear end of the inclined scraper (44) is closely attached to the front end surface of the filter element component (43). When the filter element component (43) rotates, the inclined scraper (44) is used to scrape off impurities accumulated on the front end surface of the filter element component (43).

2. The wet dust removal and filtering assembly for an asphalt pavement maintenance vehicle according to claim 1, characterized in that: The upper end of the support (1) is provided with an arc-shaped groove (11), the top of the arc-shaped groove (11) is provided with an arc-shaped inner groove (12), the driving support member comprises a driving wheel (13) and a supporting wheel (14) which are movably arranged in the middle part and the top of both sides of the arc-shaped inner groove (12), and a driving rod (7) is also connected between the front and rear sets of driving wheels (13); The heating and stirring tank (2) is supported on a driving wheel (13) and a supporting wheel (14).

3. The wet dust removal and filtering assembly for an asphalt pavement maintenance vehicle according to claim 2, characterized in that: A limiting ring (3) is provided on the surface of the heating and stirring tank (2), and the limiting ring (3) is located on the inner side of the corresponding driving wheel (13) and supporting wheel (14).

4. The wet dust removal and filtering assembly for an asphalt pavement maintenance vehicle according to claim 1, characterized in that: The air guide assembly is an air guide box (21) connected to the upper front end of the sealing disk (19); the upper and lower surfaces of the air guide box (21) are evenly arranged in an arc shape; a recessed groove (36) is provided in the middle of the lower end of the air guide box (21); smoke holes (37) distributed at equal intervals on the recessed groove (36) are communicated with the inner cavity of the air guide box (21); the filter box body (4) is connected to the upper rear end of the sealing disk (19); and the filter box body (4) is communicated with the inner cavity of the air guide box (21).

5. The wet dust removal and filtering assembly for an asphalt pavement maintenance vehicle according to claim 2, characterized in that: The mounting frame comprises a U-shaped frame (24) fixed to the rear end of the sealing disk (19) and an L-shaped frame (25) connected between the bottom of the rear end of the U-shaped frame (24) and the support (1) at the front; The motor (6) is fixed to the rear end of the lower part of the L-shaped frame (25); the driving mechanism comprises a first gear (8), a second gear (9) and a third gear (10) which are arranged in sequence from top to bottom at the front part of the L-shaped frame (25); the first gear (8) is meshed with the third gear (10) via the second gear (9); The rear end of the driving rod (7) is fixedly connected to the middle part of the third gear (10).

6. The wet dust removal and filtering assembly for an asphalt pavement maintenance vehicle according to claim 5, characterized in that: The asphalt raw material stirring assembly comprises a first stirring shaft (22) centrally arranged inside the heating stirring tank (2) and stirring rods (23) evenly spaced on the first stirring shaft (22); The rear end of the stirring rod (23) extends out of the heating stirring tank (2) and is fixedly connected to the first gear (8); The connection assembly comprises a first pulley (32) fixed on the rear end of the stirring rod (23), a connecting shaft (35) fixed between the filter element assembly (43) and the fan blade (40), a second pulley (33) fixed on the connecting shaft (35), and a belt (34) connecting the first pulley (32) and the second pulley (33).

7. The wet dust removal and filtering assembly for an asphalt pavement maintenance vehicle according to claim 6, characterized in that: A connecting tube (39) is provided at the front end of the middle portion of the sealing disk (19), and two sets of bearings (38) are provided inside the connecting tube (39), and the bearings (38) are sleeved on the first stirring shaft (22).

8. The wet dust removal and filtering assembly for an asphalt pavement maintenance vehicle according to claim 6, characterized in that: The filter element assembly (43) comprises a rotating cylinder (431) arranged inside the filter housing (31), an intermediate cylinder (432) arranged centrally inside the rotating cylinder (431), fastening plates (433) connected at equal intervals between the outer side of the intermediate cylinder (432) and the inner wall of the rotating cylinder (431), and an activated carbon block (434) embedded between adjacent fastening plates (433); The front end of the connecting shaft (35) is fixedly connected to the intermediate cylinder (432).

9. The wet dust removal and filtering assembly for an asphalt pavement maintenance vehicle according to claim 5, characterized in that: A second stirring shaft (41) is centrally disposed inside the clean water tank (5), and a stirring blade (42) is disposed on the second stirring shaft (41). The front end of the second stirring shaft (41) passes through the clean water tank (5) and the L-shaped frame (25) and is fixed to the middle of the second gear (9).

10. The wet dust removal and filtering assembly for an asphalt pavement maintenance vehicle according to claim 1, characterized in that: The smoke duct comprises a first duct (29) connected to the lower portion of the rear end of the negative pressure housing (30) and a second duct (28) connected to the bottom of the first duct (29); the bottom of the second duct (28) extends into the interior of the clean water tank (5); and a water inlet pipe (27) and a sewage discharge pipe (26) are respectively provided at the upper and lower ends of the rear portion of the clean water tank (5).

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