Asphalt tail gas treatment system

Abstract

The invention relates to the field of tail gas treatment, in particular to an asphalt tail gas treatment system which comprises a frame body, an electrostatic oil trap, a high-voltage electrolyzer, a purification tank and a water tank, a smoke inlet pipe is arranged on the frame body, the purification tank communicates with the electrostatic oil trap, and a first water storage cavity is formed in the water tank; the two ends of the water tank are provided with a water inlet pipe and a water outlet pipe which are communicated with the first water storage cavity respectively, the water tank is provided with a plurality of first smoke guide pipes which are evenly distributed in the first water storage cavity, and the smoke inlet pipe is communicated with the input ends of the first smoke guide pipes. The output ends of the multiple first smoke guide pipes are communicated with the interior of the purification tank, a heating box is arranged at the bottom in the purification tank, an air guide pipe is arranged at the bottom of the purification tank, a steam opening is formed in the upper portion of the air guide pipe, and the lower portion of the air guide pipe is communicated with the heating box. The device has the effect of fully utilizing the heat of the asphalt tail gas.

Description

Technical Field

[0001] This application relates to the field of tail gas treatment, and in particular to an asphalt tail gas treatment system. Background Art

[0002] During the production of asphalt, asphalt tail gas is generated. The asphalt tail gas may contain various dispersed particles such as suspended fine particles, solid hydrocarbon particles, gaseous hydrocarbon derivatives, and carcinogens. If the asphalt tail gas is directly discharged into the atmosphere, it will seriously pollute the surrounding environment and endanger human health. Therefore, the dispersed particles in the asphalt fume need to be separated and filtered to a qualified level before the purified gas can be discharged.

[0003] When purifying asphalt tail gas, most of the dispersed particles in the asphalt tail gas can be combined with high-temperature water mist to form larger water droplets and then settle through the method of high-temperature spraying. However, the asphalt tail gas itself has a certain amount of heat, and this heat will be dissipated during the treatment process, resulting in waste of energy. Summary of the Invention

[0004] In order to make full use of the heat of asphalt tail gas, this application provides an asphalt tail gas treatment system.

[0005] An asphalt tail gas treatment system provided by this application adopts the following technical scheme: An asphalt tail gas treatment system includes a frame body, an electrostatic oil catcher, a high-voltage electrolyzer, a purification tank, and a water tank. The electrostatic oil catcher and the high-voltage electrolyzer are both arranged on the frame body. An inlet smoke pipe is arranged on the frame body. The purification tank is communicated with the electrostatic oil catcher, and the electrostatic oil catcher is communicated with the high-voltage electrolyzer. The water tank has a first water storage cavity. An inlet water pipe and an outlet water pipe communicating with the first water storage cavity are respectively arranged at both ends of the water tank. The water tank is provided with a plurality of first smoke guide pipes, and the plurality of first smoke guide pipes are evenly distributed in the first water storage cavity. The inlet smoke pipe is communicated with the input end of the first smoke guide pipe, and the output ends of the plurality of first smoke guide pipes are communicated with the inside of the purification tank. A heating box is arranged at the bottom of the purification tank, and the outlet water pipe is communicated with the heating box. A gas guide pipe is arranged at the bottom of the purification tank. A steam port is provided at the upper part of the gas guide pipe, and the lower part of the gas guide pipe is communicated with the heating box.

[0006] By adopting the above technical scheme, the asphalt tail gas first enters the water tank through the inlet smoke pipe. Since the water tank has a first water storage cavity and the first smoke guide pipes are arranged in the first water storage cavity, when the asphalt tail gas passes through the first smoke guide pipes in the first water storage cavity, through the way of heat conduction, the heat is transferred from the high-temperature asphalt tail gas to the low-temperature water in the first water storage tank through the pipe wall of the first smoke guide pipe, so as to utilize the heat of the asphalt tail gas and reduce energy waste. Then, the tar in the asphalt smoke is separated by the electrostatic oil catcher, and then it is processed by the high-voltage electrolyzer.

[0007] Optionally, a smoke guide plate is provided on the purification tank. A plurality of second smoke guide pipes are evenly distributed on the upper surface of the smoke guide plate. A plurality of first through holes are formed through the outer peripheral wall of the second smoke guide pipe. The second smoke guide pipe communicates with the smoke guide plate. The position of the second smoke guide pipe in the vertical direction corresponds to the position of the steam port.

[0008] By adopting the above technical solution, if the asphalt tail gas enters from the lower part of the purification tank and the steam is above, it will cause some steam to be discharged from the upper part of the purification tank before it is mixed with the asphalt tail gas, resulting in waste of steam. Therefore, a smoke guide plate is provided in the purification tank, and a second smoke guide pipe is provided on the smoke guide plate. The position of the second smoke guide pipe in the vertical direction corresponds to the position of the steam port, so that the steam can be directly mixed with the asphalt tail gas after coming out of the guide pipe, improving the mixing efficiency of the two and enhancing the purification effect on the dispersed molecules in the asphalt tail gas.

[0009] Optionally, a cleaning plate is provided above the smoke guide plate in the purification tank. The second smoke guide pipe passes through the cleaning plate. The smoke guide plate is slidably connected to the purification tank in the vertical direction. The purification tank is provided with a first driving component for driving the smoke guide plate to slide up and down. When the smoke guide plate slides, the cleaning plate cleans the outer peripheral wall of the second smoke guide pipe.

[0010] By adopting the above technical solution, after the dispersed molecules and water vapor combine to form water droplets, they are easily blocked at the first through holes of the second smoke guide pipe. Therefore, a cleaning plate is provided, and the outer peripheral wall of the second smoke guide pipe can be cleaned during the up and down sliding of the smoke guide plate.

[0011] Optionally, the first driving component includes a first driving box, a first piston and a first ejector rod. The first driving box is arranged on the inner wall of the purification tank. The first driving box has a first sliding cavity. The first piston is slidably connected to the first sliding cavity in the vertical direction. The first ejector rod is located above the first piston. Two ends of the first ejector rod are respectively connected to the first piston and the lower surface of the smoke guide plate. A first cavity is formed in the side wall of the purification tank. The first smoke guide pipe communicates with the lower part of the first cavity. The middle part of the first cavity communicates with the lower part of the first sliding cavity. A first communication hole is formed in the upper part of the first cavity. The smoke guide plate is provided with a second communication hole for communicating with the first communication hole. The purification tank is provided with a first closing plate for closing the first communication hole. The smoke guide plate is provided with an opening component. When the position of the second smoke guide pipe in the vertical direction corresponds to the position of the steam port, the opening component forces the first closing plate to open the first communication hole.

[0012] By adopting the above technical solution, when the asphalt tail gas enters the first cavity, it will first enter the first sliding cavity and force the first piston to move upward, thereby driving the smoke guide plate to move upward to a position corresponding to the steam port. During the upward sliding process of the smoke guide plate, the first closing plate can be forced to open the first communication hole through the opening assembly. At this time, the first communication hole corresponds to the second communication hole, and the asphalt tail gas in the first cavity can enter the interior of the smoke guide plate.

[0013] Optionally, the opening assembly includes an insertion plate and a first spring. The insertion plate is slidably connected to the smoke guide plate in the horizontal direction. The first spring forces the insertion plate to move towards the first closing plate. The first closing plate is provided with an insertion hole for the insertion plate to be inserted. A guiding surface is provided on the lower side of the end of the insertion plate close to the first closing plate, and the guiding surface is inclined downward and away from the first closing plate from top to bottom.

[0014] By adopting the above technical solution, when the smoke guide plate slides upward to a position where the insertion plate corresponds to the insertion hole, the insertion plate is inserted into the insertion hole under the action of the first spring. When the smoke guide plate continues to move upward, the first closing plate can be driven to move upward and open the first communication hole.

[0015] Optionally, the second smoke guide pipe is rotatably connected to the smoke guide plate, and the smoke guide plate is provided with a second driving assembly for driving the second smoke guide pipe to rotate. When the smoke guide plate slides downward, the second driving assembly drives the second smoke guide pipe to rotate.

[0016] By adopting the above technical solution, some water droplets will block inside the first through hole, making it difficult for the cleaning plate to clean. Therefore, a second driving assembly is provided, which can drive the second smoke guide pipe to rotate self - rotatably, and the water droplets at the first through hole are thrown out by centrifugal force for easy cleaning.

[0017] Optionally, the second driving assembly includes a first rotating roller, a connecting rope, a torsion spring, a first gear, and a first toothed ring. The first rotating roller is rotatably connected to the smoke guide plate. The upper end of the connecting rope is connected to the first rotating roller, and the lower end of the connecting rope is connected to the tank body of the purification tank. When the smoke guide plate moves downward, the first rotating roller winds up the connecting rope. The torsion spring is arranged at both ends of the first rotating roller. A plurality of first gears are provided and respectively correspond to a plurality of second smoke guide pipes. The first gears are coaxially arranged at the lower end of the first smoke guide pipe. The first toothed ring is rotatably connected to the smoke guide plate, and the gears mesh with the first toothed ring. When the first rotating roller rotates, the first toothed ring can be driven to rotate.

[0018] By adopting the above technical solution, when the smoke guide plate moves away from the first drive box, the connecting rope pulls the first rotating roller to rotate, so that the torsion spring has elastic potential energy; when the smoke guide plate moves downward, at this time the torsion spring releases the elastic potential energy, forcing the first rotating roller to rotate, thereby driving the first toothed ring to rotate, and then driving the first gear to rotate, thereby driving the second smoke guide pipe to rotate self - rotatably.

[0019] Optionally, a floating plate is arranged in the heating box, a water inlet hole is arranged on one side of the heating box, a blocking plate for closing the water inlet hole is arranged on the lower surface of the floating plate, a third communication hole is opened in the lower part of the first cavity and communicated with the first smoke guide pipe, a moving plug capable of closing the third communication hole is slidably connected in the first cavity, a second drive box is arranged on the side wall of the heating box, a second piston is slidably connected in the second drive box, a second ejector rod is arranged on the upper part of the second piston, the upper part of the second ejector rod is connected to the floating plate, the lower part of the second drive box is communicated with the lower part of the first cavity through a connecting pipe, and liquid is filled below the moving plug in the first cavity, below the connecting pipe and below the second piston in the second drive box.

[0020] By adopting the above technical solution, a floating plate is provided. When the water level in the heating box drops, the floating plate drops, driving the second piston to move downward to press the liquid into the first cavity to force the moving plug to move upward and block the third communication hole. At this time, the second drive box loses gas supply, and the first piston moves downward, so that the smoke guide plate moves downward to clean the second smoke guide pipe; and after the floating plate moves downward, it will open the water inlet, enabling the water in the water tank to enter the heating box. After a period of time, the floating plate rises, and the moving plug opens the third communication hole, thereby driving the smoke guide plate to move upward again.

[0021] Optionally, the high - voltage electrolyzer is communicated with a second filter box.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: The asphalt tail gas first enters the water tank through the smoke inlet pipe. The water tank has a first water storage cavity, and the first smoke guide pipe passes through the first water storage cavity. When the asphalt tail gas passes through the first smoke guide pipe in the first water storage cavity, by means of heat conduction, heat is transferred from the high - temperature asphalt tail gas through the pipe wall of the first smoke guide pipe to the low - temperature water in the first water storage tank, and the heat of the asphalt tail gas is utilized through the heat transfer to reduce energy waste. Then, it passes through an electrostatic oil catcher to separate the tar in the asphalt smoke, and then is processed by a high - voltage electrolyzer; If the asphalt tail gas enters from the lower part of the purification tank and the steam is above, it will cause some steam to be discharged from the upper part of the purification tank before it is mixed with the asphalt tail gas, resulting in waste of steam. Therefore, a smoke guide plate is provided in the purification tank, and a second smoke guide pipe is provided on the smoke guide plate. The position of the second smoke guide pipe in the vertical direction corresponds to the position of the steam port, so that the steam can be directly mixed with the asphalt tail gas after coming out of the gas guide pipe, improving the mixing efficiency of the two and enhancing the purification effect on the dispersed molecules in the asphalt tail gas. Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of this embodiment; Figure 2 is a schematic structural diagram of the water tank in this embodiment; Figure 3 is a schematic structural diagram of the heating tank in this embodiment; Figure 4 is a schematic structural diagram of the smoke guide plate in this embodiment; Figure 5 is a schematic structural diagram of the opening component in this embodiment; Figure 6 is a schematic structural diagram of the insertion plate in this embodiment; Figure 7 is a schematic structural diagram of the cleaning plate in this embodiment; Figure 8 is Figure 2 an enlarged schematic diagram of part A in Figure 9 is Figure 4 an enlarged schematic diagram of part B in.

[0024] Description of reference numerals: 1. Frame body; 2. Smoke inlet pipe; 3. Electrostatic oil catcher; 4. High-voltage electrolyzer; 5. Purification tank; 51. Heating box; 511. Second water storage cavity; 512. Water inlet hole; 52. Floating plate; 521. Baffle plate; 53. First cavity; 531. First communication hole; 532. Third communication hole; 533. Moving plug; 534. Sealing plate; 535. Fourth communication hole; 536. Check valve; 537. Air vent hole; 538. Second sliding groove; 54. Second cavity; 541. Second smoke outlet; 55. Air duct; 551. Steam port; 56. Second driving box; 561. Second sliding cavity; 562. Second piston; 563. Second ejector rod; 57. First closing plate; 571. Third sliding cavity; 572. Insertion hole; 573. First avoidance groove; 58. Cleaning plate; 581. Cleaning hole; 59. First driving assembly; 591. First driving box; 592. First piston; 593. First ejector rod; 594. First sliding cavity; 595. Second closing plate; 596. Waist-shaped groove; 6. Second filter box; 7. Water tank; 71. First smoke cavity; 711. First smoke inlet; 72. Second smoke cavity; 721. First smoke outlet; 73. First water storage cavity; 731. Water inlet pipe; 732. Water outlet pipe; 74. First smoke guide pipe; 8. Smoke guide plate; 81. Third cavity; 82. Connecting block; 821. Second communication hole; 822. First sliding groove; 83. Opening assembly; 831. First spring; 832. Insertion plate; 833. Guide surface; 84. First installation groove; 85. Second installation groove; 86. Third installation groove; 87. Fourth installation groove; 88. Second smoke guide pipe; 881. First through hole; 9. Second driving assembly; 91. First rotating roller; 92. Connecting rope; 93. Torsion spring; 94. First gear; 95. First toothed ring; 96. Tapered toothed ring; 97. Bevel gear. Detailed implementation manners

[0025] The following further elaborates on this application Figures 1-9 in conjunction with the appended drawings.

[0026] An embodiment of this application discloses an asphalt tail gas treatment system. Refer to Figure 1 , which includes a frame body 1, an electrostatic oil catcher 3, a high-voltage electrolyzer 4, a purification tank 5, and a second filter box 6. The upper part of the frame body 1 is fixedly installed with a smoke inlet pipe 2. The purification tank 5 is fixedly installed on the frame body. The lower end of the smoke inlet pipe 2 communicates with the purification tank 5. The asphalt tail gas from the asphalt plant enters the purification tank 5 through the smoke inlet pipe 2 for preliminary filtration. The electrostatic oil catcher 3 is fixedly installed on the frame body 1 and is located on one side of the purification tank 5. The purification tank 5 communicates with the electrostatic oil catcher 3. The asphalt tail gas enters the electrostatic oil catcher 3 after being filtered by the purification tank 5.

[0027] The high-voltage electrolyzer 4 is fixedly installed on the frame body 1 and is located on the side of the electrostatic oil catcher 3 away from the purification tank 5. The electrostatic oil catcher 3 is connected to the high-voltage electrolyzer 4, and the asphalt tail gas enters the high-voltage electrolyzer 4 after passing through the electrostatic oil catcher 3. The second filter box 6 is fixedly installed on the frame body 1 and is located on the side of the high-voltage electrolyzer 4 away from the electrostatic oil catcher 3. The high-voltage electrolyzer 4 is connected to the second filter box 6, and the asphalt tail gas enters the second filter box 6 after passing through the high-voltage electrolyzer 4 for further filtration.

[0028] Referring to Figure 1 and Figure 2 , this embodiment further includes a water tank 7. The water tank 7 is fixedly installed on one side of the purification tank 5, and the smoke inlet pipe 2 is connected to the water tank 7. The asphalt tail gas first enters the water tank 7 and then enters the purification tank 5.

[0029] The water tank 7 is cylindrical in shape, the axis direction of the water tank 7 is vertically arranged, and the interior of the water tank 7 has three chambers. The three chambers are, from top to bottom in the vertical direction, the first smoke chamber 71, the first water storage chamber 73, and the second smoke chamber 72. A number of first smoke guide pipes 74 are evenly distributed in the first water storage chamber 73. The axis direction of the first smoke guide pipe 74 is parallel to the axis direction of the water tank 7. The two ends of the first smoke guide pipe 74 are respectively fixedly penetrated through the chamber walls of the first smoke chamber 71 and the second smoke chamber 72, and the first smoke chamber 71 and the second smoke chamber 72 are communicated through the first smoke guide pipe 74.

[0030] The upper part of the first smoke chamber 71 is provided with a first smoke inlet 711, the second smoke chamber 72 is provided with a first smoke outlet 721 communicating with the purification tank 5, the first smoke inlet 711 is connected to the smoke inlet pipe 2, and the asphalt tail gas enters the first smoke chamber 71 from the first smoke inlet 711 and enters the interior of the purification tank 5 from the first smoke outlet 721.

[0031] The upper part of the first water storage chamber 73 is provided with a water inlet pipe 731, the lower part of the first water storage chamber 73 is provided with a water outlet pipe 732, a heating box 51 is fixedly installed at the bottom of the purification tank 5, a second water storage chamber 511 is provided in the heating box 51, a water inlet hole 512 communicating with the second water storage chamber 511 is provided on one side of the heating box 51, and the water outlet pipe 732 is connected to the water inlet hole 512. The heating box 51 can further heat the water with a certain temperature transported from the first water storage chamber 73.

[0032] The heating box 51 is provided with a floating plate 52. The floating plate 52 is located in the second water storage chamber 511. The floating plate 52 is slidably connected to the second water storage chamber 511 in the vertical direction. A blocking plate 521 is fixedly connected to the lower surface of the floating plate 52. By moving the floating plate 52 up and down, the blocking plate 521 can close the water inlet hole 512.

[0033] Referring to Figure 1 and Figure 2, the interior of the purification tank 5 has a second cavity 54. A second smoke exhaust port 541 is opened at the upper part of the second cavity 54, and the second smoke exhaust port 541 communicates with the second filter box 6. A gas guide pipe 55 is coaxially and fixedly connected to the bottom wall of the second cavity 54. A plurality of steam ports 551 are evenly opened at the upper part of the gas guide pipe 55. The lower part of the gas guide pipe 55 communicates with the heating box 51. After the heating box 51 further heats the water, the generated steam enters the second cavity 54 through the steam ports 551.

[0034] A first cavity 53 is opened in the cavity wall of the second cavity 54. A first communication hole 531 is opened at the upper part of the first cavity 53, and a third communication hole 532 is opened at the lower part of the first cavity 53. The first smoke outlet 721 communicates with the third communication hole 532. The asphalt tail gas in the second smoke cavity 72 enters the first cavity 53 through the third communication hole 532, and then enters the second cavity 54 through the first through hole 881, so as to be mixed with the steam in the second cavity 54.

[0035] Refer to Figure 2 and Figure 3 , a movable plug 533 that can close the third communication hole 532 is slidably connected to the first cavity 53. A sealing plate 534 is fixedly connected to the lower surface of the movable plug 533, and the sealing plate 534 is slidably connected to the first cavity 53. A second driving box 56 is fixedly connected to the side wall of the heating box 51. A second sliding cavity 561 is provided in the second driving box 56. A second piston 562 that is slidably connected to the second sliding cavity 561 is provided in the second driving box 56. A second ejector rod 563 is fixedly connected to the upper part of the second piston 562, and the upper end of the second ejector rod 563 is fixedly connected to the lower surface of the floating plate 52. The lower part of the second driving box 56 communicates with the lower part of the first cavity 53 through a connecting pipe. The lower part of the first cavity 53 below the movable plug 533, the connecting pipe, and the second driving box 56 below the second piston 562 are all filled with liquid. When the floating plate 52 moves downward, it can drive the second piston 562 to move downward, and then press the liquid in the second driving box 56 into the first cavity 53, forcing the sealing plate 534 to drive the movable plug 533 to move upward, thereby closing the third communication hole 532 and preventing the asphalt tail gas from continuing to enter the first cavity 53.

[0036] Refer to Figure 2 and Figure 4 , a smoke guide plate 8 is arranged in the second cavity 54. The smoke guide plate 8 is slidably sleeved on the gas guide pipe 55 in the vertical direction. A third cavity 81 is provided in the smoke guide plate 8. A plurality of second smoke guide pipes 88 are arranged on the upper surface of the smoke guide plate 8. The plurality of second smoke guide pipes 88 are arranged in a circumferential array along the axis direction of the smoke guide plate 8. The lower end of the second smoke guide pipe 88 is rotatably connected to the smoke guide plate 8. A plurality of first through holes 881 are evenly opened on the outer peripheral wall of the second smoke guide pipe 88.

[0037] The second smoke guide pipe 88 communicates with the third cavity 81. A connecting block 82 is fixedly connected to the side of the smoke guide plate 8 close to the first cavity 53. The connecting block 82 abuts against the side wall of the second cavity 54. A second communication hole 821 is formed in the side of the connecting block 82, and the second communication hole 821 can communicate with the first communication hole 531, so that the asphalt tail gas in the first cavity 53 can enter the third cavity 81 through the first communication hole 531 and the second communication hole 821, and enter the second cavity 54 through the first through hole 881. When the smoke guide plate 8 moves to the uppermost position, the position of the second smoke guide pipe 88 in the vertical direction corresponds to the position of the steam port 551.

[0038] Refer to Figure 2 、 Figure 5 and Figure 6 , a first closing plate 57 for closing the first communication hole 531 is arranged on the inner wall of the purification tank 5. A third sliding cavity 571 is formed in the inner wall of the purification tank 5 in the vertical direction, and the first closing plate 57 is slidably connected to the third sliding cavity 571 in the vertical direction. The smoke guide plate 8 is provided with an opening assembly 83. When the position of the second smoke guide pipe 88 in the vertical direction of the smoke guide plate 8 corresponds to the position of the steam port 551, the opening assembly 83 forces the first closing plate 57 to open the first communication hole 531 so that the first communication hole 531 communicates with the second communication hole 821.

[0039] The opening assembly 83 includes an insertion plate 832 and a first spring 831. A first sliding groove 822 is formed in the side of the connecting block 82 close to the side of the first closing plate 57 in the direction close to the axis of the smoke guide plate 8, and the insertion plate 832 is slidably connected to the first sliding groove 822 in the horizontal direction. The first spring 831 is located in the first sliding groove 822. One end of the first spring 831 is fixedly connected to the groove wall of the first sliding groove 822, and the other end of the first spring 831 is fixedly connected to the insertion plate 832. The first spring 831 forces the insertion plate 832 to move towards the first closing plate 57.

[0040] The first closing plate 57 is provided with an insertion hole 572 for the insertion plate 832 to be inserted. The wall of the second cavity 54 is provided with a first avoidance groove 573 for avoiding the insertion plate 832. The length direction of the first avoidance groove 573 is vertically arranged, so that the insertion plate 832 can always be inserted into the insertion hole 572 during the upward sliding process. A guiding surface 833 is arranged on the lower side of the end of the insertion plate 832 close to the first closing plate 57, and the guiding surface 833 is inclined from top to bottom in the direction away from the first closing plate 57.

[0041] Refer to Figure 2 and Figure 7, a cleaning plate 58 is fixedly connected above the chamber wall of the second cavity 54 to the smoke guide plate 8. A plurality of cleaning holes 581 are formed in the cleaning plate 58, and the plurality of cleaning holes 581 respectively correspond to the plurality of second smoke guide pipes 88. During the vertical sliding process of the smoke guide plate 8, the second smoke guide pipes 88 can be inserted into the cleaning holes 581, so as to scrape off the water droplets on the outer peripheral walls of the second smoke guide pipes 88.

[0042] Referring to Figure 2 and Figure 8 , the purification tank 5 is provided with a first driving assembly 59 for driving the smoke guide plate 8 to slide up and down. The first driving assembly 59 includes a first driving box 591, a first piston 592 and a first ejector rod 593. The first driving box 591 is located below the connecting block 82, and the first driving box 591 is fixedly connected to the side wall of the second cavity 54. The first driving box 591 has a first sliding cavity 594, the first piston 592 is slidably connected to the first sliding cavity 594 in the vertical direction, the first ejector rod 593 is located above the first piston 592, and both ends of the first ejector rod 593 are respectively connected to the first piston 592 and the lower surface of the connecting block 82. By introducing air into the lower part of the first sliding cavity 594, the first piston 592 can be driven to move upward, thereby forcing the smoke guide plate 8 to move upward.

[0043] Referring to Figure 2 and Figure 8 , a fourth communication hole 535 communicating with the lower part of the first sliding cavity 594 is formed below the first communication hole 531 in the first cavity 53. A one-way valve 536 is provided in the middle of the fourth communication hole 535, so that gas can only enter the first sliding cavity 594 from the first cavity 53. An air release hole 537 is formed in the side wall of the first sliding cavity 594 below the second piston 562. The air release hole 537 is located above the fourth communication hole 535, and the air release hole 537 communicates with the first cavity 53. A second sliding groove 538 is formed in the chamber wall of the first cavity 53. The length direction of the second sliding groove 538 is vertically arranged. A second closing plate 595 is slidably connected to the second sliding groove 538 in the vertical direction. A waist-shaped groove 596 is formed in the second closing plate 595. A connecting rod is fixedly connected to the lower end of the second closing plate 595, and the connecting rod is fixedly connected to the side of the moving plug 533 away from the third communication hole 532.

[0044] The waist-shaped groove 596 is always communicated with the fourth communication hole 535. When the second piston 562 slides upward, the waist-shaped groove 596 and the air release hole 537 are arranged in a dislocation manner, so that the second closing plate 595 can close the air release hole 537. When the water level inside the heating box 51 drops, the moving plug 533 closes the third communication hole 532, thereby driving the second closing plate 595 to move upward, so that the waist-shaped groove 596 is communicated with the air release hole 537 to release air from the first sliding cavity 594, so that the first piston 592 can move downward under the action of gravity and drive the smoke guide plate 8 to move downward, thereby cleaning the second smoke guide pipe 88.

[0045] Referring to Figure 2 、 Figure 4 and Figure 9 , the smoke guide plate 8 is provided with a second driving assembly 9 for driving the second smoke guide pipe 88 to rotate. When the smoke guide plate 8 slides downward, the second driving assembly 9 drives the second smoke guide pipe 88 to rotate. The second driving assembly 9 includes a first rotating roller 91, a connecting rope 92 and a torsion spring 93. A first installation groove 84 is formed in the smoke guide plate 8. The first rotating roller 91 is located in the first installation groove 84. The axial direction of the first rotating roller 91 is parallel to the length direction of the first installation groove 84. The torsion spring 93 is sleeved on one end of the first rotating roller 91. The two ends of the torsion spring 93 are respectively fixedly connected to the outer peripheral wall of the first rotating roller 91 and the groove wall of the first installation groove 84. The upper end of the connecting rope 92 is fixedly connected to the outer peripheral wall of the first rotating roller 91. The lower end of the connecting rope 92 passes through the smoke guide plate 8 and is fixedly connected to the cavity wall of the second cavity 54 through a connecting plate. When the smoke guide plate 8 moves downward, the first rotating roller 91 winds up the connecting rope 92. When the smoke guide plate 8 moves upward, the connecting rope 92 unwinds and forces the first rotating roller 91 to rotate, so that the torsion spring 93 has elastic potential energy.

[0046] The second driving assembly 9 further includes a first gear 94, a first toothed ring 95, a bevel toothed ring 96 and a bevel gear 97. A second installation groove 85 is formed in the lower part of the smoke guide plate 8. The axis of the second installation groove 85 is coaxially arranged with the axis of the smoke guide plate 8. The first toothed ring 95 and the first gear 94 are both located in the second installation groove 85. The lower end of the second smoke guide pipe 88 extends into the second installation groove 85. A plurality of first gears 94 are provided and respectively correspond to a plurality of second smoke guide pipes 88. The first gear 94 is coaxially and fixedly connected to the lower end of the second smoke guide pipe 88. The first gear 94 meshes with the first toothed ring 95. When the first toothed ring 95 rotates, it can drive the second smoke guide pipe 88 to rotate.

[0047] The upper part of the second installation groove 85 is provided with a third installation groove 86. The bevel gear ring 96 is located in the third installation groove 86 and is fixedly connected to the upper surface of the first gear ring 95. A fourth installation groove 87 is provided on one side of the third installation groove 86 close to the first installation groove 84. One end of the first rotating roller 91 away from the torsion spring 93 rotatably penetrates into the fourth installation groove 87. The bevel gear 97 is coaxially located in the fourth installation groove 87 and is coaxially fixedly connected to the first rotating roller 91. The bevel gear 97 meshes with the bevel gear ring 96.

[0048] The implementation principle of an asphalt tail gas treatment system according to an embodiment of the present application is as follows: When the purification tank 5 is not working, the smoke guide pipe is at the lowest position of the sliding position. When asphalt tail gas enters the first cavity 53, the first communication hole 531 is closed by the first closing plate 57 at this time. Therefore, the asphalt tail gas will first enter the first driving box 591, thereby forcing the first piston 592 to move upward to drive the smoke guide plate 8 to move upward.

[0049] After the smoke guide plate 8 moves upward to a certain position, the insertion plate 832 is inserted into the insertion hole 572, which can drive the first closing plate 57 to open the first communication hole 531. At this time, the asphalt tail gas enters the smoke guide plate 8 and comes out from the first through hole 881, so as to be mixed with the steam at the steam port 551. During the upward movement of the smoke guide plate 8, the connecting rope 92 is pulled, driving the first rotating roller 91 to rotate, so that the torsion spring 93 has elastic potential energy.

[0050] After the water in the water tank 7 drops to a certain level, it will drive the second piston 562 to move downward, so that the moving plug 533 closes the third communication hole 532. The movement of the moving plug 533 will drive the second closing plate 595 to move, thereby opening the air release hole 537, so that the first driving box 591 is deflated. At this time, the smoke guide plate 8 moves downward under the action of the torsion spring 93 and gravity. During the movement, the second smoke guide pipe 88 will be driven to rotate by the first gear 94, and the second smoke guide pipe 88 penetrates through the cleaning hole 581 to clean the outer peripheral wall. When the water level reaches a certain level, the third communication hole 532 is opened again, thereby continuing to force the smoke guide plate 8 to move upward.

[0051] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An asphalt tail gas treatment system, characterized in that: It includes a frame body (1), an electrostatic oil catcher (3), a high-voltage electrolyzer (4), a purification tank (5), and a water tank (7). The electrostatic oil catcher (3) and the high-voltage electrolyzer (4) are both arranged on the frame body (1). A smoke inlet pipe (2) is arranged on the frame body (1). The purification tank (5) is communicated with the electrostatic oil catcher (3). The electrostatic oil catcher (3) is communicated with the high-voltage electrolyzer (4). The water tank (7) has a first water storage cavity (73). An inlet water pipe (731) and an outlet water pipe (732) that are communicated with the first water storage cavity (73) are respectively arranged at both ends of the water tank (7). The water tank (7) is provided with a plurality of first smoke guide pipes (74). The plurality of first smoke guide pipes (74) are evenly distributed in the first water storage cavity (73). The smoke inlet pipe (2) is communicated with the input end of the first smoke guide pipe (74). The output ends of the plurality of first smoke guide pipes (74) are communicated with the inside of the purification tank (5). A heating box (51) is arranged at the bottom inside the purification tank (5). The outlet water pipe (732) is communicated with the heating box (51). A gas guide pipe (55) is arranged at the bottom of the purification tank (5). The upper part of the gas guide pipe (55) has a steam port (551). The lower part of the gas guide pipe (55) is communicated with the heating box (51).

2. The asphalt tail gas treatment system according to claim 1, characterized in that: The purification tank (5) is provided with a smoke guide plate (8). A plurality of second smoke guide pipes (88) are evenly distributed on the upper surface of the smoke guide plate (8). A plurality of first through holes (881) are penetrated and opened on the outer peripheral wall of the second smoke guide pipe (88). The second smoke guide pipe (88) is communicated with the smoke guide plate (8). The position of the second smoke guide pipe (88) in the vertical direction corresponds to the position of the steam port (551).

3. The asphalt tail gas treatment system according to claim 2, characterized in that: A cleaning plate (58) is arranged above the smoke guide plate (8) in the purification tank (5). The second smoke guide pipe (88) penetrates through the cleaning plate (58). The smoke guide plate (8) is slidably connected to the purification tank (5) in the vertical direction. The purification tank (5) is provided with a first driving assembly (59) for driving the smoke guide plate (8) to slide up and down. When the smoke guide plate (8) slides, the cleaning plate (58) cleans the outer peripheral wall of the second smoke guide pipe (88).

4. The asphalt tail gas treatment system according to claim 3, characterized in that: The first driving component (59) includes a first driving box (591), a first piston (592), and a first ejector rod (593). The first driving box (591) is disposed on the inner wall of the purification tank (5). A first sliding cavity (594) is formed in the first driving box (591). The first piston (592) is slidably connected to the first sliding cavity (594) in the vertical direction. The first ejector rod (593) is located above the first piston (592). Two ends of the first ejector rod (593) are respectively connected to the first piston (592) and the lower surface of the smoke guide plate (8). A first cavity (53) is formed in the side wall of the purification tank (5). The first smoke guide pipe (74) communicates with the lower part of the first cavity (53). The middle part of the first cavity (53) communicates with the lower part of the first sliding cavity (594). A first communication hole (531) is formed in the upper part of the first cavity (53). The smoke guide plate (8) is provided with a second communication hole (821) for communicating with the first communication hole (531). The purification tank (5) is provided with a first closing plate (57) for closing the first communication hole (531). The smoke guide plate (8) is provided with an opening component (83). When the smoke guide plate (8) moves to a position where the second smoke guide pipe (88) is vertically aligned with the steam port (551), the opening component (83) forces the first closing plate (57) to open the first communication hole (531).

5. The asphalt tail gas treatment system according to claim 4, characterized in that: The opening component (83) includes an insertion plate (832) and a first spring (831). The insertion plate (832) is slidably connected to the smoke guide plate (8) in the horizontal direction. The first spring (831) forces the insertion plate (832) to move towards the first closing plate (57). The first closing plate (57) is provided with an insertion hole (572) for the insertion plate (832) to be inserted. A guiding surface (833) is disposed on the lower side of one end of the insertion plate (832) close to the first closing plate (57). The guiding surface (833) is inclined downward and away from the first closing plate (57).

6. The asphalt tail gas treatment system according to claim 4, wherein: The second smoke guide pipe (88) is rotatably connected to the smoke guide plate (8). The smoke guide plate (8) is provided with a second driving component (9) for driving the second smoke guide pipe (88) to rotate. When the smoke guide plate (8) slides downward, the second driving component (9) drives the second smoke guide pipe (88) to rotate.

7. An asphalt tail gas treatment system according to claim 6, characterized in that: The second driving assembly (9) includes a first rotating roller (91), a connecting rope (92), a torsion spring (93), a first gear (94), and a first toothed ring (95). The first rotating roller (91) is rotatably connected to the smoke guide plate (8). The upper end of the connecting rope (92) is connected to the first rotating roller (91), and the lower end of the connecting rope (92) is connected to the tank body of the purification tank (5). When the smoke guide plate (8) moves downward, the first rotating roller (91) winds up the connecting rope (92). The torsion spring (93) is arranged at both ends of the first rotating roller (91). A plurality of first gears (94) are provided and respectively correspond to a plurality of second smoke guide pipes (88). The first gears (94) are coaxially arranged at the lower end of the first smoke guide pipe (74). The first toothed ring (95) is rotatably connected to the smoke guide plate (8), and the gears mesh with the first toothed ring (95). When the first rotating roller (91) rotates, it can drive the first toothed ring (95) to rotate.

8. An asphalt tail gas treatment system according to claim 7, characterized in that: The heating box (51) is provided with a floating plate (52). One side of the heating box (51) is provided with a water inlet hole (512). The lower surface of the floating plate (52) is provided with a blocking plate (521) for closing the water inlet hole (512). A third communication hole (532) is opened in the lower part of the first cavity (53) and communicates with the first smoke guide pipe (74). A moving plug (533) that can close the third communication hole (532) is slidably connected to the first cavity (53). A second driving box (56) is arranged on the side wall of the heating box (51). A second piston (562) is slidably connected to the second driving box (56). A second ejector rod (563) is arranged above the second piston (562), and the upper part of the second ejector rod (563) is connected to the floating plate (52). The lower part of the second driving box (56) is communicated with the lower part of the first cavity (53) through a connecting pipe. Liquids are filled below the moving plug (533) in the first cavity (53), below the connecting pipe, and below the second piston (562) in the second driving box (56).

9. The asphalt tail gas treatment system according to claim 1, characterized in that: The high-voltage electrolyzer (4) is communicated with a second filter box (6).

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