An asphalt fume purification device

Abstract

The application discloses a bitumen smoke gas purification device, and relates to the technical field of bitumen smoke gas purification, which comprises a rack, a shell fixedly connected to the rack, a horizontal plate horizontally fixed to one side of the inner wall of the shell, a filter channel and a settling channel formed by the horizontal plate, a conical inner recess-shaped flow guide groove arranged on the other side of the inner wall of the shell, and a flared end of the flow guide groove communicated with the filter channel and the settling channel. The settling channel, the filter channel and the conical inner recess-shaped flow guide groove form a transverse U-shaped channel, so that the smoke gas impacts on the inner recess sidewall of the flow guide groove before being filtered, the smoke gas is buffered, and when the particulate matters in the smoke gas impact on the inner wall of the flow guide groove, the particulate matters are blocked and rebounded by the inner wall of the flow guide groove, so that the particulate matters in the smoke gas are blocked and fall into the settling channel, thereby realizing the preliminary filtration of the smoke gas. Meanwhile, two horizontal water curtains are sprayed on both sides of the fixed pipe, the impurities in the smoke gas can be initially washed, and the effective purification of the smoke gas is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of asphalt fume purification, in particular to an asphalt fume purification device. BACKGROUND

[0002] When the asphalt fume is treated, the general treatment method of the particulate matter, oil mist and other substances in the fume includes physical filtration, cyclone separation, electrostatic trapping, water spray absorption and the like. However, when the particulate matter exists, the physical filtration is prone to cause the filter to be blocked, and the filter needs to be cleaned or replaced frequently; the cyclone separation effect is poor; the electrostatic trapping has a relatively high investment cost, and in order to achieve a better trapping effect, the temperature and other parameters of the fume need to be controlled, which is not suitable for some working conditions.

[0003] In the prior art, when the fume passes through the spray tower, the particulate matter, oil mist or aerosol-like substance entrained by the fume is intercepted by water to form floating substances on the surface of the water. In order to enhance the contact effect between the water and the gas, the tower body needs to be relatively large to reduce the wind speed, and the spray tower is filled with fillers to increase the contact area, which is prone to cause the risk of tower blockage. If the spray water viscosity is reduced to prevent the tower from being blocked, a large amount of sewage will be generated, causing secondary pollution.

[0004] In view of the above problems, an asphalt fume purification device is provided. SUMMARY

[0005] The present application aims to provide an asphalt fume purification device to solve the above problems.

[0006] To solve the above technical problems, the present application specifically provides the following technical scheme:

[0007] An asphalt fume purification device, comprising a rack, a shell fixedly connected to the rack, an air inlet pipe and an air outlet pipe arranged in sequence from bottom to top on one side of the shell, a horizontal plate fixed horizontally on one side of the inner wall of the shell, the horizontal plate separating the inside of the shell into a filtering channel and a settling channel, the air inlet pipe being in communication with the settling channel, the air outlet pipe being in communication with the filtering channel, a liquid outlet pipe provided at the bottom of the shell and in communication with the settling channel, a guide groove in the shape of a conical inner recess provided on the other side of the inner wall of the shell, the wide end of the guide groove being in communication with the filtering channel and the settling channel, a scraping mechanism provided rotatably on one side of the inner wall of the shell and used for cleaning the inner wall of the guide groove, a fixed pipe connected between the scraping mechanism and the horizontal plate, two groups of spray heads symmetrically arranged along the horizontal direction of the fixed pipe, a filtering mechanism arranged on the horizontal plate and used for filtering the fume, and a cleaning mechanism arranged outside the filtering mechanism and connected with the scraping mechanism.

[0008] As a preferred scheme of the present application, the middle part of the horizontal plate is provided with a communication groove in communication with the fixed pipe, and the shell is connected with a liquid inlet pipe in communication with the communication groove.

[0009] As a preferred scheme of the present application, the scraping mechanism comprises a circular plate, a sleeve shaft, a sleeve ring and a plurality of scraping plates, the sleeve shaft is rotatably arranged on one side of the inner wall of the shell and movably sleeved with the fixed pipe, the circular plate and the sleeve ring are respectively arranged on two sides of the flow guide groove, the circular plate is fixedly sleeved on the outer wall of the sleeve shaft, the plurality of scraping plates are evenly arranged on the outer wall of the circular plate in the circumferential direction, and the other ends of all the scraping plates are fixedly connected with the sleeve ring, one side of all the scraping plates is in abutment with the inner wall of the flow guide groove, and the outer part of the shell is provided with a driving motor, and the output shaft of the driving motor is coaxially fixed with the sleeve shaft.

[0010] As a preferred scheme of the present application, the filtering mechanism comprises a first filter plate and a second filter plate, the first filter plate and the second filter plate are fixed on the horizontal plate in sequence, a plurality of rhombic through holes are formed in the first filter plate, air guide holes for the flue gas to pass through are formed in the second filter plate, a sandwich groove is formed in the middle part of the first filter plate and the second filter plate, a filter wire mesh is inserted into the sandwich groove of the first filter plate, and an activated carbon filter layer is inserted into the sandwich groove of the second filter plate.

[0011] As a preferred scheme of the present application, the cleaning mechanism comprises a connecting sleeve, a rotating ring, a rotating rod and two groups of nozzles, the communication groove is internally provided with a movable groove, the rotating ring is rotatably arranged in the movable groove, and the outer wall of the rotating ring is tightly attached to the inner wall of the movable groove, one end of the connecting sleeve is fixedly connected with the rotating ring, the other end of the connecting sleeve penetrates the communication groove, the fixed pipe and is fixedly connected with the inner wall of the sleeve shaft in sequence, an arc-shaped groove in communication with the movable groove is formed in the horizontal plate, one end of the rotating rod penetrates the arc-shaped groove and is fixedly connected with the rotating ring, and the rotating rod is slidably connected with the arc-shaped groove, a water distribution cavity in communication with the interior of the rotating ring is formed in the rotating rod, and the two groups of nozzles are respectively arranged on two sides of the rotating rod, and all the nozzles are in communication with the water distribution cavity.

[0012] As a preferred scheme of the present application, the cleaning mechanism is located between the first filter plate and the second filter plate, and the two groups of nozzles are respectively directed towards the first filter plate and the second filter plate.

[0013] As a preferred scheme of the present application, a circulating water tank is arranged on the rack, the liquid outlet pipe is in communication with the circulating water tank, the other end of the liquid inlet pipe is connected with a three-way pipe, a water pump and an air pump are further arranged on the rack, the output ends of the water pump and the air pump are connected with the three-way pipe, and the input end of the water pump is connected with the circulating water tank.

[0014] As a preferred scheme of the present application, a maintenance door is detachably connected to a maintenance opening formed on one side of the top of the shell near the filtering mechanism.

[0015] As a preferred scheme of the present application, two L-shaped plates are symmetrically arranged inside the sedimentation channel, the bottom of each of the two L-shaped plates is fixedly connected to the inner bottom wall of the shell, and the two L-shaped plates are both located below the air inlet pipe, and the two L-shaped plates together with the inner wall of the shell enclose two oil sumps, and an oil discharge pipe is connected to each side of the bottom of the shell and communicates with the two oil sumps.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] 1. The shell is divided into a sedimentation channel and a filtering channel by the horizontal plate, and the sedimentation channel, the filtering channel and the inwardly recessed flow guide groove form a transverse U-shaped channel, so that the flue gas is first impacted on the inwardly recessed side wall of the flow guide groove before being filtered, and the particulate matters in the flue gas are blocked and bounced by the inner wall of the flow guide groove when impacting on the inner wall, so that the particulate matters in the flue gas are blocked and fall into the sedimentation channel, thereby realizing preliminary filtration of the flue gas, and the spray heads on both sides of the fixed pipe spray two horizontal water curtains, and the water curtains wash the impurities in the flue gas when the flue gas passes through the flow guide groove, thereby washing part of the impurities to the bottom of the sedimentation channel, so that effective purification of the flue gas is realized.

[0018] 2. The setting of the scraping mechanism can drive the sleeve shaft, the circular plate fixedly connected to the sleeve shaft, the abutting scraper and the sleeve ring to rotate synchronously, and the abutting scraper can scrape off the impurities attached to the inner wall of the flow guide groove in the rotating process, thereby avoiding accumulation of the impurities on the inner wall of the flow guide groove and ensuring smoothness of the flow guide groove, and meanwhile, the abutting scraper can disturb the sewage in the flow guide groove in the rotating process, thereby accelerating separation of the oil and dirt particles in the sewage.

[0019] 3. The setting of the filtering mechanism enables the first filter plate to preliminarily filter the larger particulate impurities in the flue gas through the diamond-shaped through holes in the first filter plate, and the setting of the filter wire mesh further improves the filtering effect on the fine particulate impurities, and the active carbon filter layer in the interlayer groove can effectively adsorb harmful substances in the flue gas, such as odors and toxic flue gas, thereby realizing deep purification of the flue gas. The combination of the first filter plate and the second filter plate not only improves the purification efficiency, but also ensures the purification quality, so that the flue gas treated by the filtering mechanism is more pure. BRIEF DESCRIPTION OF DRAWINGS

[0020] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0021] Figure 1 The present invention provides an overall structural diagram of an asphalt fume purification device. Figure 1 ;

[0022] Figure 2 The present invention provides an overall structural diagram of an asphalt fume purification device. Figure 2 ;

[0023] Figure 3 A cross-sectional view of the internal structure of the housing is provided for the present invention;

[0024] Figure 4 The present invention provides Figure 3 A magnified view of the structure at point A;

[0025] Figure 5 A partial structural cross-sectional view of the housing is provided for the present invention;

[0026] Figure 6 Provides a structural schematic diagram of a scraping mechanism and a filtering mechanism for the present invention;

[0027] Figure 7 A partial structural cross-sectional view of the filtering mechanism of the present invention is provided.

[0028] The numbers in the figure represent the following:

[0029] 1. Frame; 2. Housing; 3. Air inlet duct; 4. Air outlet duct; 5. Scraping mechanism; 6. Fixing pipe; 7. Liquid outlet pipe; 8. Filter mechanism; 9. Cleaning mechanism; 10. Circulating water tank; 11. Tee pipe; 12. Water pump; 13. Air pump; 14. Drive motor; 15. Inspection door; 16. Oil drain pipe; 17. Liquid inlet pipe

[0030] 21. Horizontal plate; 22. Filtration channel; 23. Sedimentation channel; 24. Guide groove; 25. L-shaped plate; 26. Oil trough; 27. Connecting groove; 51. Circular plate; 52. Sleeve; 53. Ring; 54. Contact scraper; 61. Sprinkler head; 81. First filter plate; 82. Second filter plate; 83. Through hole; 84. Air guide hole; 85. Interlayer groove; 86. Filter screen; 87. Activated carbon filter layer; 91. Connecting sleeve; 92. Rotating ring; 93. Rotating rod; 94. Sprinkler head; 95. Arc groove; 96. Water distribution chamber; 97. Movable groove. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0032] As shown in Figure 1 Figure 7 The present application provides an asphalt fume purification device, which comprises a rack 1, a shell 2 fixedly connected to the rack 1, an air inlet pipeline 3 and an air outlet pipeline 4 arranged in sequence from bottom to top on one side of the shell 2, a horizontal plate 21 fixed horizontally on one side of the inner wall of the shell 2, the horizontal plate 21 separating the shell 2 into a filtering channel 22 and a settling channel 23, the air inlet pipeline 3 being in communication with the settling channel 23, the air outlet pipeline 4 being in communication with the filtering channel 22, a liquid outlet pipe 7 provided at the bottom of the shell 2 and in communication with the settling channel 23, a conical inner recess-shaped flow guide groove 24 provided on the other side of the inner wall of the shell 2, the flared end of the flow guide groove 24 being in communication with the filtering channel 22 and the settling channel 23, a scraping mechanism 5 provided on one side of the inner wall of the shell 2 and used for cleaning the inner wall of the flow guide groove 24, a fixed pipe 6 connected between the scraping mechanism 5 and the horizontal plate 21, two groups of spray heads 61 symmetrically provided on the fixed pipe 6 in the horizontal direction, a filtering mechanism 8 provided on the horizontal plate 21 and used for filtering fume, and a cleaning mechanism 9 provided outside the filtering mechanism 8 and connected with the scraping mechanism 5.

[0033] A communication groove 27 in communication with the fixed pipe 6 is formed in the middle of the horizontal plate 21, and a liquid inlet pipe 17 in communication with the communication groove 27 is connected to one side of the shell 2.

[0034] ​In use, the flue gas is introduced into the settling channel 23 through the air inlet pipe 3, the flow guide groove 24 communicates the settling channel 23 with the filtering channel 22, so that the flue gas flows to the flow guide groove 24, the conical recess design of the flow guide groove 24 can guide the flue gas flow, so that it smoothly enters the settling channel 23, then the cleaning liquid is injected into the communication groove 27 through the liquid inlet pipe 17, the cleaning liquid is sprayed through the spray heads 61 on both sides of the fixed pipe 6, so that two horizontal water curtains are sprayed on both sides of the fixed pipe 6, when the flue gas passes through the flow guide groove 24, the water curtain performs primary flushing on the impurities in the flue gas, and part of the impurities are flushed to the bottom of the settling channel 23, and because of the conical recess design of the flow guide groove 24, when the flue gas enters the inside of the shell 2, it first impacts on the recessed side wall of the flow guide groove 24, so that the flue gas is preliminarily buffered, and when the particulate matter in the flue gas impacts on the inner wall of the flow guide groove 24, it is blocked and bounced by the inner wall of the flow guide groove 24, so that the particulate matter in the flue gas is blocked and falls into the settling channel, after being guided and primarily flushed by the flow guide groove 24, the flue gas enters the filtering channel 22, at this time, the filtering mechanism 8 starts to finely filter the flue gas, effectively intercepts and removes the remaining small particles and harmful substances, at the same time, the scraping mechanism 5 rotates under the power driving, and with the rotation of the scraping mechanism 5, it can continuously scrape the inner wall of the flow guide groove 24, and the impurities adhering to the inner wall of the flow guide groove 24 are scraped off, so as to avoid the accumulation of impurities on the inner wall of the flow guide groove 24 to affect the flow efficiency of the flue gas. The scraping mechanism 5 is connected with the cleaning mechanism 9, when the scraping mechanism 5 rotates, it can drive the cleaning mechanism 9 to clean the outside of the filtering mechanism 8, further ensuring the filtering effect and improving the filtering efficiency of the flue gas. The flue gas filtered and purified is discharged by the air outlet pipe 4, and the impurities at the bottom of the settling channel 23 are discharged by the liquid outlet pipe 7, so as to realize the purification treatment of the flue gas. The pre-treatment equipment of the prior art cannot filter the flue gas containing oil mist and asphalt smoke. The oil mist and asphalt smoke contained in the flue gas are removed, and the plugging of the filter is reduced.

[0035] Among them, after the flue gas is sprayed by the water curtain, the sewage falls into the settling channel 23, the heavier impurity particles in the sewage gradually deposit to the bottom under the action of gravity, and are regularly discharged through the liquid outlet pipe 7, so as to realize the effective purification of the flue gas. The purified flue gas is smoothly discharged from the device through the air outlet pipe 4, and the expected purification effect is achieved.

[0036] Further, two L-shaped plates 25 are symmetrically arranged inside the settling channel 23, the bottoms of the two L-shaped plates 25 are fixedly connected with the inner bottom wall of the shell 2, and the two L-shaped plates 25 are located below the air inlet pipe 3, and the two L-shaped plates 25 and the inner wall of the shell 2 form two oil grooves 26, and the bottom of the shell 2 is connected with the oil discharge pipe 16 which communicates with the two oil grooves 26.

[0037] Because the flue gas contains particulate matter, oil mist and other substances. Therefore, when the flue gas is sprayed, the oil stains in the sewage will float on the water surface. When the water level of the sewage is higher than the L-shaped plate 25, the oil stains on the surface of the sewage are effectively guided into the oil stain tank 26. The oil stain tank 26 is located between the L-shaped plate 25 and the inner wall of the shell 2, forming a relatively closed collection space, so that the oil stain particles can accumulate therein. When the oil stain reaches a certain degree, it can be smoothly discharged outside the device through the oil discharge pipe 16. Not only avoids the accumulation of oil stains in the device, reduces the maintenance cost, but also ensures the continuous and stable flue gas purification effect. It is worth noting that in order to prevent the sewage in the sedimentation channel 23 from entering the air inlet pipe, the height of the L-shaped plate 25 should be lower than the air inlet pipe to ensure that the flue gas can smoothly enter the sedimentation channel 23, and to prevent the backflow of sewage from affecting the flue gas purification process.

[0038] Further, the scraping mechanism 5 includes a circular plate 51, a sleeve shaft 52, a sleeve ring 53 and a plurality of abutting scrapers 54. The sleeve shaft 52 is rotatably arranged on one side of the inner wall of the shell 2 and movably sleeved with the fixed pipe 6. The circular plate 51 and the sleeve ring 53 are respectively located on both sides of the flow guide groove 24, and the circular plate 51 is fixedly sleeved on the outer wall of the sleeve shaft 52. A plurality of abutting scrapers 54 are uniformly arranged on the outer wall of the circular plate 51 in the circumferential direction, and the other end of all the abutting scrapers 54 is fixedly connected with the sleeve ring 53. One side of all the abutting scrapers 54 abuts against the inner wall of the flow guide groove 24. A driving motor 14 is installed outside the shell 2, and the output shaft of the driving motor 14 is coaxially fixed with the sleeve shaft 52.

[0039] When the driving motor 14 works, it can drive the sleeve shaft 52 and the circular plate 51, the abutting scrapers 54 and the sleeve ring 53 fixedly connected therewith to rotate synchronously. In the rotating process, the abutting scrapers 54 can scrape off the impurities adhered to the inner wall of the flow guide groove 24, avoiding the accumulation of impurities on the inner wall of the flow guide groove 24 and ensuring the smoothness of the flow guide groove 24. At the same time, in the rotating process, the abutting scrapers 54 can disturb the sewage in the flow guide groove 24, accelerating the separation of oil stain particles in the sewage, improving the efficiency of oil stain particles entering the oil stain tank 26, and further improving the purification effect of the device.

[0040] The filtering mechanism 8 includes a first filter plate 81 and a second filter plate 82. The first filter plate 81 and the second filter plate 82 are fixed in sequence on the horizontal plate 21. A plurality of diamond-shaped through holes 83 are formed in the first filter plate 81. A gas guide hole 84 for flue gas to pass through is formed in the second filter plate 82. A sandwich recess 85 is formed in the middle of the first filter plate 81 and the second filter plate 82. A filter wire mesh 86 is inserted into the sandwich recess 85 of the first filter plate 81. An activated carbon filter layer 87 is inserted into the sandwich recess 85 of the second filter plate 82.

[0041] The first filter plate 81 can preliminarily filter larger particulate impurities in the flue gas through the diamond-shaped through holes 83 in the interior thereof, and the filter wire screen 86 is arranged to further improve the filtering effect on fine particulate impurities. The air guide holes 84 on the second filter plate 82 allow the flue gas to pass through, ensuring that the flue gas that has been preliminarily filtered can smoothly enter the second filter plate 82 and be further purified. At the same time, the activated carbon filter layer 87 in the interlayer groove 85 can effectively adsorb harmful substances in the flue gas, such as odors and toxic smoke, thereby achieving deep purification of the flue gas. The combined use of the first filter plate 81 and the second filter plate 82 not only improves the purification efficiency but also ensures the purification quality, so that the flue gas treated by the filtering mechanism 8 is more pure. In addition, the arrangement of the interlayer groove 85 also facilitates the cleaning and replacement of the filter wire screen 86 and the activated carbon filter layer 87, ensuring the continuous and efficient operation of the device.

[0042] Further, a maintenance opening is formed on one side of the top of the shell 2 close to the filtering mechanism 8, and a maintenance door 15 is detachably connected in the maintenance opening.

[0043] The arrangement of the maintenance door 15 enables the user to conveniently replace the filter wire screen 86 and the activated carbon filter layer 87 in the filtering mechanism 8, as well as clean and maintain the filtering mechanism 8 and other components that may accumulate dirt, greatly improving the ease of use and maintainability of the device. At the same time, the detachable connection between the maintenance door 15 and the maintenance opening ensures that the maintenance door 15 can tightly fit the shell 2 when closed, preventing unfiltered flue gas from leaking from the maintenance opening and ensuring the sealing and purification effect of the device.

[0044] The cleaning mechanism 9 includes a connecting sleeve 91, a rotating ring 92, a rotating rod 93, and two groups of spray heads 94. An active groove 97 is formed in the communication groove 27, the rotating ring 92 is rotationally arranged in the active groove 97, and the outer wall of the rotating ring 92 tightly fits the inner wall of the active groove 97. One end of the connecting sleeve 91 is fixedly connected with the rotating ring 92, and the other end of the connecting sleeve 91 is fixedly connected with the inner wall of the sleeve shaft 52 after sequentially penetrating the communication groove 27 and the fixed pipe 6. An arc-shaped groove 95 that communicates with the active groove 97 is formed on the horizontal plate 21. One end of the rotating rod 93 penetrates the arc-shaped groove 95 and is fixedly connected with the rotating ring 92, and the rotating rod 93 is slidingly connected with the arc-shaped groove 95. A water distribution cavity 96 that communicates with the interior of the rotating ring 92 is formed in the rotating rod 93. The two groups of spray heads 94 are arranged on the two sides of the rotating rod 93, and all the spray heads 94 communicate with the water distribution cavity 96.

[0045] The cleaning mechanism 9 is located between the first filter plate 81 and the second filter plate 82, and the two groups of spray heads 94 are respectively directed towards the first filter plate 81 and the second filter plate 82.

[0046] The rack 1 is provided with a circulating water tank 10, the liquid outlet pipe 7 is communicated with the circulating water tank 10, one end of the liquid inlet pipe 17 is connected with the three-way pipe 11, the rack 1 is further provided with a water pump 12 and an air pump 13, the output ends of the water pump 12 and the air pump 13 are connected with the three-way pipe 11, and the input end of the water pump 12 is connected with the circulating water tank 10. Further, the three-way pipe 11 is provided with a valve, when it is needed to clean the filtering mechanism 8, the user can inject the water from the external water source or the water in the circulating water tank 10 into the connecting sleeve pipe 91 through the water pump 12, the water source enters the water distribution cavity 96 through the rotating ring 92 after entering the connecting sleeve pipe 91, and is finally sprayed from the two groups of spray heads 94 to wash the first filter plate 81 and the second filter plate 82. Since the rotating rod 93 is slidably connected with the arc-shaped groove 95, and the rotating ring 92 can rotate in the movable groove 97, therefore, the rotating rod 93 and the spray head 94 also rotate and move along with the sleeve shaft 52 driven by the driving motor 14, the cleaning of the filtering mechanism 8 is realized, the dead angle of cleaning is avoided, and the cleaning efficiency is improved. In addition, the cleaning mechanism 9 is arranged, so that the user can clean without disassembling the filtering mechanism 8, the cleaning process is greatly simplified, and the usability of the device is improved.

[0047] It is worth noting that the valve can be arranged in the rotating rod 93 to control the water flow in the water distribution cavity 96, so that the filtering mechanism 8 is not affected by the water sprayed from the cleaning mechanism 9 when the filtering mechanism 8 works.

[0048] After the filtering mechanism 8 is cleaned, the valve connected with the water pump 12 on the three-way pipe 11 is closed, the valve connected with the air pump 13 is opened, the air pump 13 is started, the external clean gas is delivered into the communicating groove 27, and is blown to the inner walls of the filtering mechanism 8 and the flow guide groove 24 through the spray head 94 and the spray head 61 respectively, so that the water droplets attached to the inner walls of the filtering mechanism 8 and the flow guide groove 24 are blown dry, the secondary pollution problem caused by the residual water droplets is avoided, the dryness of the internal environment of the device is ensured, and the service life of the device is prolonged. In addition, the circulating water tank 10 can collect and store the sewage generated in the cleaning process, so that the sewage can be filtered and reused, the water resource is saved and recycled. The bottom of the circulating water tank 10 is further provided with a sewage discharge valve, when the sewage in the circulating water tank 10 accumulates to a certain degree, the user can open the sewage discharge valve to discharge the sewage, and the subsequent sewage treatment work is facilitated.

[0049] The protection scope of the application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the application within the spirit and protection scope of the application, and the modification or equivalent replacement is also regarded as falling within the protection scope of the application.

Claims

1. An asphalt fume purification device, comprising a rack (1), a shell (2) is fixedly connected on the rack (1), an air inlet pipeline (3) and an air outlet pipeline (4) are sequentially arranged from bottom to top on one side of the shell (2), characterized in that, The horizontal plate (21) is arranged on one side of the inner wall of the shell (2), and divides the shell (2) into a filtering channel (22) and a settling channel (23); the air inlet pipe (3) is communicated with the settling channel (23); the air outlet pipe (4) is communicated with the filtering channel (22); the shell (2) is provided with a liquid outlet pipe (7) communicated with the settling channel (23) at the bottom; the inner wall of the shell (2) is provided with a conical inner recess-shaped flow guide groove (24) on the other side; the flared end of the flow guide groove (24) is communicated with the filtering channel (22) and the settling channel (23); the flow guide groove (24) is rotatably provided with a scraping mechanism (5) for cleaning the inner wall of the flow guide groove (24) on one side of the inner wall of the shell (2); the scraping mechanism (5) is connected with the horizontal plate (21) through a fixing pipe (6); the fixing pipe (6) is provided with a plurality of spray heads (61) on both sides; the horizontal plate (21) is provided with a filtering mechanism (8) for filtering flue gas and a cleaning mechanism (9) for cleaning the filtering mechanism (8); the cleaning mechanism (9) is arranged outside the filtering mechanism (8) and connected with the scraping mechanism (5); The horizontal plate (21) is provided with a communication groove (27) communicated with the fixing pipe (6) in the middle; the shell (2) is connected with a liquid inlet pipe (17) communicated with the communication groove (27) on one side; The scraping mechanism (5) comprises a circular plate (51), a sleeve shaft (52), a sleeve ring (53) and a plurality of abutting scrapers (54); the sleeve shaft (52) is rotatably arranged on one side of the inner wall of the shell (2) and movably sleeved with the fixing pipe (6); the circular plate (51) and the sleeve ring (53) are respectively arranged on both sides of the flow guide groove (24); the circular plate (51) is fixedly sleeved on the outer wall of the sleeve shaft (52); the plurality of abutting scrapers (54) are evenly arranged on the outer wall of the circular plate (51) in the circumferential direction; the other ends of all the abutting scrapers (54) are fixedly connected with the sleeve ring (53); one side of all the abutting scrapers (54) abuts against the inner wall of the flow guide groove (24); the shell (2) is externally provided with a driving motor (14); the output shaft of the driving motor (14) is coaxially fixed with the sleeve shaft (52); The settling channel (23) is symmetrically provided with two L-shaped plates (25) inside; the bottoms of the two L-shaped plates (25) are fixedly connected with the inner bottom wall of the shell (2); the two L-shaped plates (25) are located below the air inlet pipe (3); the two L-shaped plates (25) and the inner wall of the shell (2) form two oil grooves (26); the shell (2) is connected with two oil discharge pipes (16) communicated with the two oil grooves (26) on both sides.

2. The device for cleaning asphalt fumes according to claim 1, characterized in that: The filtering mechanism (8) comprises a first filter plate (81) and a second filter plate (82), the first filter plate (81) and the second filter plate (82) are fixed on the transverse plate (21) in sequence, a plurality of rhombic through holes (83) are formed in the first filter plate (81), air guide holes (84) for allowing flue gas to pass through are formed in the second filter plate (82), a sandwich groove (85) is formed in the middle of the first filter plate (81) and the second filter plate (82), a filter wire mesh (86) is arranged in the sandwich groove (85) of the first filter plate (81), and an activated carbon filter layer (87) is arranged in the sandwich groove (85) of the second filter plate (82).

3. The device of claim 1, wherein: The cleaning mechanism (9) comprises a connecting sleeve (91), a rotating ring (92), a rotating rod (93) and two groups of spray heads (94), the communication groove (27) is internally provided with a movable groove (97), the rotating ring (92) is rotatably arranged in the movable groove (97), the outer wall of the rotating ring (92) is tightly attached to the inner wall of the movable groove (97), one end of the connecting sleeve (91) is fixedly connected with the rotating ring (92), the other end of the connecting sleeve (91) penetrates the communication groove (27) and the fixed pipe (6) in sequence and is fixedly connected with the inner wall of the sleeve shaft (52), a plurality of connecting openings are formed in the side wall of the connecting sleeve (91) and are in communication with the communication groove (27), an arc-shaped groove (95) in communication with the movable groove (97) is formed in the transverse plate (21), one end of the rotating rod (93) penetrates the arc-shaped groove (95) and is fixedly connected with the rotating ring (92), the rotating rod (93) is slidably connected with the arc-shaped groove (95), a water distribution cavity (96) in communication with the inside of the rotating ring (92) is formed in the rotating rod (93), and the two groups of spray heads (94) are arranged on the two sides of the rotating rod (93) and are in communication with the water distribution cavity (96).

4. The device of claim 3, wherein: The cleaning mechanism (9) is located between the first filter plate (81) and the second filter plate (82), and the two groups of spray heads (94) are respectively directed to the first filter plate (81) and the second filter plate (82).

5. The device of claim 1, wherein: A circulating water tank (10) is arranged on the rack (1), the liquid outlet pipe (7) is in communication with the circulating water tank (10), the other end of the liquid inlet pipe (17) is connected with a three-way pipe (11), a water pump (12) and an air pump (13) are further arranged on the rack (1), the output ends of the water pump (12) and the air pump (13) are connected with the three-way pipe (11), and the input end of the water pump (12) is connected with the circulating water tank (10).

6. The device of claim 1, wherein: A maintenance opening is formed in one side of the top of the shell (2) close to the filtering mechanism (8), and a maintenance door (15) is detachably connected in the maintenance opening.

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