Flue gas treatment device for asphalt paver

Abstract

The utility model relates to the field of asphalt pavers, and discloses a flue gas treatment device for an asphalt paver, which comprises four fixed seats, two filter screens, two activated carbon screens and a mounting plate fixedly connected to a spiral distribution hopper of the asphalt paver, and the top of the mounting plate is fixedly connected with a treatment box. A partition plate is fixedly connected into the treatment box, one side of the treatment box fixedly communicates with a dust suction pump, and one side of the dust suction pump fixedly communicates with a dust suction cover. The flue gas treatment device has the advantages and effects that flue gas can be better treated, waste heat in the flue gas is collected and used for preheating asphalt, the filter screen and the activated carbon screen are convenient to disassemble, assemble, clean and replace, the effects of filtering the flue gas and absorbing harmful substances are ensured, the filtered dust is favorably collected and cleaned, and the environment is protected. Therefore, the dust cannot fall down to block a flue gas inlet channel to reduce the flue gas treatment efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt pavers, in particular to a fume treatment device for asphalt pavers. Background Art

[0002] Asphalt has long been used as a paving material for roads, parking lots, sidewalks and other surfaces, and asphalt paving equipment has become increasingly widely used. During the construction process, the paver receives hot asphalt mixture through the front hopper, and the internal skateboard conveyor chain delivers the mixture to the spiral spreader at the rear of the paver. The spiral spreader spreads the mixture evenly along the cross-section of the road, and the paver screed then flattens and compacts it, producing a large amount of asphalt smoke in the process. After searching: Patent number CN216726305U is a fume collection and treatment device for asphalt pavement paver, a mounting box is screwed connected to one side of the outer wall of the body, two induced draft hoods are screwed connected to the outer wall of the body, a trapezoidal air suction port is screwed connected to one side of the outer wall of the body, the induced draft hood and the trapezoidal air suction port are connected to each other, a wind tunnel is opened on one side of the outer wall of the trapezoidal air suction port, the trapezoidal air suction port is connected to the mounting box pipe, the induced draft hoods are installed 10 cm above the spiral feeding hopper of the body, the two induced draft hoods are connected to each other by pipes, a box door is rotatably connected to one side of the outer wall of the mounting box, and an asphalt smoke concentration display meter is provided under the induced draft hood.

[0003] However, the above-mentioned smoke treatment device for asphalt paver still has some shortcomings. Although a filter is set in the funnel-shaped collecting chamber, it is convenient to filter the dust in the smoke, but the filter is inconvenient to disassemble and assemble. Long-term use can easily reduce the smoke filtration effect. In addition, dust falling downwards can easily block the collecting chamber and reduce the efficiency of smoke treatment. Therefore, we propose a smoke treatment device for asphalt paver to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a flue gas treatment device for an asphalt paver, which can better treat the flue gas, collect and utilize the waste heat in the flue gas to preheat the asphalt, facilitate the disassembly, cleaning and replacement of the filter screen and the activated carbon screen, ensure the effect of flue gas filtering and absorption of harmful substances, and facilitate the collection and cleaning of filtered dust, so that the dust will not fall and block the flue gas inlet channel and reduce the efficiency of flue gas treatment.

[0005] The above technical purpose of the utility model is achieved through the following technical scheme: it includes four fixed seats, two filter screens, two activated carbon screens and a mounting plate fixedly connected to the spiral feeding hopper of the asphalt paver, the top of the mounting plate is fixedly connected to a processing box, a partition is fixedly connected inside the processing box, one side of the processing box is fixedly connected to a dust suction pump, one side of the dust suction pump is fixedly connected to a dust suction hood, two filter screens and two activated carbon screens are respectively fixedly connected to the bottom of the corresponding fixed seats, a disassembly and replacement component is arranged between the fixed seat and the top of the processing box, a dust collection and cleaning component is arranged between the partition and the processing box, and a waste heat collection component is arranged between the partition and the processing box.

[0006] By adopting the above technical scheme, the smoke generated during asphalt paving can be sucked into the processing box above the partition through a vacuum pump, and the dust in the smoke can be filtered out after being filtered by the filter screens on both sides. At the same time, the smoke flow slows down after being intercepted by the filter screens, and can fully absorb harmful substances in the smoke after passing through two activated carbon nets. Then the smoke passes through the waste heat collection component, which can fully absorb the waste heat in the smoke. Hot water can be used to preheat the asphalt so that the asphalt can be quickly heated later. The smoke is finally discharged into the combustion chamber on the asphalt paver for combustion, which can remove harmful polycyclic aromatic hydrocarbons in the smoke and completely purify the smoke. On the other hand, it can turn waste into treasure and provide power for the engine.

[0007] The utility model is further configured as follows: four installation openings are provided on the top of the processing box, a through slot is provided on one side of the fixing seat, the disassembly and replacement assembly includes a reset spring arranged in the through slot, both ends of the reset spring are fixedly connected with slides, the outer sides of the two slides are fixedly connected with clamping blocks, clamping slots are provided on the inner walls on both sides of the installation openings, two clamping blocks are movably clamped in the corresponding clamping slots, two filter screens and two activated carbon screens are movably abutted against the top of the partition, and the fixing seat is movably inserted in the corresponding installation openings.

[0008] By adopting the above technical solution, when the filter and the activated carbon net need to be disassembled, cleaned and replaced, the fixing seat is pulled up by the handle. At this time, the card block is automatically compressed back into the through groove without hindering the upward movement of the fixing seat, and then the filter and the activated carbon net can be disassembled for cleaning and replacement, thereby ensuring the effect of flue gas filtration and absorption of harmful substances. When installing, the fixing seat is inserted into the installation port. At this time, the card block is automatically compressed and squeezes the reset spring. When fully inserted, the filter and the activated carbon net are in contact with the top of the partition. At this time, the card block is aligned with the card slot. Under the elastic force of the reset spring, the two card blocks extend out and are clamped in the corresponding card slot, so that the filter and the activated carbon net can be fixed to ensure stability during installation.

[0009] The utility model is further configured as follows: a handle is fixedly connected to the top of the fixing seat, and the two slide plates are slidably sleeved in the through groove.

[0010] By adopting the above technical solution, it is convenient to pull the fixing seat, and at the same time it is beneficial to guide the skateboard to make its movement more stable.

[0011] The utility model is further configured as follows: one side of the treatment box is fixedly connected with a water inlet pipe, and the other side of the treatment box is fixedly connected with a drain pipe at the bottom.

[0012] By adopting the above technical solution, it is convenient for water to enter and at the same time for hot water to be discharged for preheating asphalt so that the asphalt can be quickly heated later.

[0013] The utility model is further configured as follows: the dust collection and cleaning component includes a placement groove provided between the partition and the processing box, a dust box is movably placed in the placement groove, two dust lowering grooves are provided on the top of the partition, the two dust lowering grooves are connected to the dust box, magnet one is fixedly connected to both sides of the dust box, magnet two is fixedly connected to the inner walls on both sides of the placement groove, magnet one and magnet two located on the same side are attracted to each other, and the two dust lowering grooves correspond to two filter screens.

[0014] By adopting the above technical solution, the dust filtered out by the two filters falls into their respective dust troughs and finally enters the dust box. After being adsorbed by magnet one and magnet two, the dust box can be easily disassembled and assembled, thereby facilitating regular cleaning of the dust collected in the dust box.

[0015] The utility model is further configured as follows: the waste heat collection component includes a plurality of heat exchange coils fixedly connected to the bottom of the partition, the plurality of heat exchange coils are fixedly connected to the inner walls on both sides of the processing box, one end of the plurality of heat exchange coils is fixedly connected to the same main pipeline, and one end of the main pipeline is fixedly connected to a connecting pipe for use in connection with a fuel chamber on an asphalt paver.

[0016] By adopting the above technical solution, the flue gas flows into the heat exchange coil from the activated carbon net, and the water in the treatment box under the partition can fully absorb the waste heat in the flue gas, and the hot water can be used to preheat the asphalt so that the asphalt can be quickly heated later. The flue gas flows from the heat exchange coil to the main pipeline and then enters the connecting pipe to be discharged into the combustion chamber on the asphalt paver for combustion, which can remove harmful polycyclic aromatic hydrocarbons in the flue gas and completely purify the flue gas. On the other hand, it can turn waste into treasure and provide power for the engine.

[0017] The utility model is further configured as follows: four threaded holes are provided on the top of the mounting plate, and the four threaded holes are distributed in a rectangular shape based on the mounting plate.

[0018] By adopting the above technical solution, it is convenient to install the device on the spiral distribution hopper of the asphalt paver.

[0019] The beneficial effects of the utility model are:

[0020] 1. The utility model can filter out dust in the flue gas through two filter screens. At the same time, the flue gas flows slower after being intercepted by the filter screens. It can fully absorb harmful substances in the flue gas after passing through two activated carbon screens. The waste heat in the flue gas can be fully absorbed through the waste heat collection component. The hot water can be used to preheat the asphalt so that the asphalt can be quickly heated later. The flue gas is finally discharged into the combustion chamber on the asphalt paver for combustion, which can remove harmful polycyclic aromatic hydrocarbons in the flue gas and completely purify the flue gas. On the other hand, it can turn waste into treasure and provide power for the engine.

[0021] 2. In the utility model, when the fixing seat is pulled up, the card block is automatically compressed back into the through groove without hindering the upward movement of the fixing seat, so that the filter screen and the activated carbon screen can be disassembled for cleaning and replacement, thereby ensuring the effect of smoke filtering and absorbing harmful substances. When installing, the fixing seat is inserted into the installation port again, and the card block is automatically compressed and squeezes the reset spring. When fully inserted, the filter screen and the activated carbon screen are in contact with the top of the partition, and the card block is aligned with the card slot. Under the elastic force of the reset spring, the two card blocks extend out and are clamped in the corresponding card slots, thereby fixing the filter screen and the activated carbon screen to ensure stability during installation.

[0022] 3. The dust filtered out by the two filters of the utility model falls into their respective dust lowering grooves and finally enters the dust collecting box. After being adsorbed by magnet one and magnet two, the dust collecting box can be easily disassembled and assembled, and the dust collected in the dust collecting box can be easily cleaned regularly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 This is a structural schematic diagram of a fume treatment device for an asphalt paver proposed by the utility model;

[0025] Figure 2 This is a cross-sectional view of a fume treatment device for an asphalt paver proposed by the utility model;

[0026] Figure 3 A three-dimensional diagram of the disassembly, assembly and replacement components of a smoke treatment device for an asphalt paver proposed by the utility model;

[0027] Figure 4 This is a structural schematic diagram of part A of a fume treatment device for an asphalt paver proposed by the utility model;

[0028] Figure 5 This is a three-dimensional diagram of a partition of a smoke treatment device for an asphalt paver proposed by the utility model.

[0029] In the figure, 1. mounting plate; 2. treatment box; 3. main pipeline; 4. dust collecting box; 5. drain pipe; 6. dust pump; 7. dust hood; 8. fixing seat; 9. mounting port; 10. partition; 11. heat exchange coil; 12. through groove; 13. block; 14. filter screen; 15. activated carbon screen; 16. water inlet pipe; 17. slot; 18. reset spring; 19. slide plate; 20. dust lowering groove; 21. placement groove; 22. magnet one; 23. magnet two; 24. connecting pipe. DETAILED DESCRIPTION

[0030] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figure 1 — Figure 5 The utility model provides a fume treatment device for an asphalt paver, comprising four fixing seats 8, two filter screens 14, two activated carbon screens 15 and a mounting plate 1 fixedly connected to a spiral feeding hopper of the asphalt paver, a treatment box 2 is fixedly connected to the top of the mounting plate 1, a partition 10 is fixedly connected inside the treatment box 2, a dust suction pump 6 is fixedly connected to one side of the treatment box 2, a dust suction hood 7 is fixedly connected to one side of the dust suction pump 6, the two filter screens 14 and the two activated carbon screens 15 are respectively fixedly connected to the bottom of the corresponding fixing seats 8, a disassembly and replacement component is arranged between the fixing seat 8 and the top of the treatment box 2, a dust collection and cleaning component is arranged between the partition 10 and the treatment box 2, and a waste heat collection component is arranged between the partition 10 and the treatment box 2.

[0032] Specifically, four installation ports 9 are provided on the top of the processing box 2, a through slot 12 is provided on one side of the fixing seat 8, and the disassembly and replacement component includes a reset spring 18 arranged in the through slot 12, both ends of the reset spring 18 are fixedly connected with a slide plate 19, and the outer sides of the two slide plates 19 are fixedly connected with a clamping block 13, and the inner walls on both sides of the installation port 9 are provided with a clamping slot 17, and the two clamping blocks 13 are movably connected in the corresponding clamping slots 17 respectively, and the two filter screens 14 and the two activated carbon screens 15 are movably connected to the top of the partition 10, and the fixing seat 8 is movably inserted in the corresponding installation port 9.

[0033] Specifically, a handle is fixedly connected to the top of the fixing seat 8.

[0034] Specifically, the two slide plates 19 are slidably sleeved in the through groove 12 .

[0035] Specifically, one side of the processing box 2 is fixedly connected to a water inlet pipe 16 , and the other side of the processing box 2 is fixedly connected to a drain pipe 5 at the bottom.

[0036] Specifically, the dust collection and cleaning component includes a placement groove 21 opened between the partition 10 and the processing box 2, and the dust box 4 is movably placed in the placement groove 21. Two dust lowering grooves 20 are opened on the top of the partition 10, and the two dust lowering grooves 20 are both connected to the dust box 4.

[0037] Specifically, magnet 1 22 is fixedly connected to both sides of the dust collecting box 4, and magnet 2 23 is fixedly connected to both inner walls of the placement groove 21, and magnet 1 22 and magnet 2 23 on the same side are attracted to each other.

[0038] Specifically, the two dust lowering troughs 20 correspond to the two filter screens 14 .

[0039] Specifically, the waste heat collection component includes a plurality of heat exchange coils 11 fixedly connected to the bottom of the partition 10, and the plurality of heat exchange coils 11 are fixedly connected to the inner walls on both sides of the processing box 2. One end of the plurality of heat exchange coils 11 is fixedly connected to the same main pipeline 3, and one end of the main pipeline 3 is fixedly connected to a connecting pipe 24 for connecting to the fuel chamber on the asphalt paver.

[0040] Specifically, four threaded holes are opened on the top of the mounting plate 1 , and the four threaded holes are distributed in a rectangular shape based on the mounting plate 1 .

[0041] The utility model, when in use, can draw the smoke generated during asphalt paving into the processing box 2 above the partition 10 through the dust suction pump 6, and can filter out the dust in the smoke after filtering through the filter screens 14 on both sides, and drop into the lower dust trough 20, and at the same time, after the smoke flows through the filter screen 14, the speed slows down, and can fully absorb the harmful substances in the smoke after passing through the two activated carbon nets 15, and then the smoke enters the heat exchange coil 11, and can fully absorb the waste heat in the smoke through the water in the processing box 2 below the partition 10, and the hot water can be used to preheat the asphalt, so as to quickly heat the asphalt later, and the smoke flows from the heat exchange coil 11 to the main pipeline 3 and then enters the connecting pipe 24 to be discharged into the combustion chamber on the asphalt paver for combustion, which can remove harmful polycyclic aromatic hydrocarbons in the smoke and completely purify the smoke. On the other hand, it can turn waste into treasure and provide power for the engine. When it is necessary to disassemble, clean and replace the filter screen 14 and the activated carbon net 15, through Pull up the fixing seat 8 with the handle, at this time, the block 13 is automatically compressed back into the through groove 12 without hindering the upward movement of the fixing seat 8, and then the filter screen 14 and the activated carbon screen 15 can be disassembled for cleaning and replacement to ensure the effect of smoke filtering and absorbing harmful substances. When installing, insert the fixing seat 8 into the installation port 9 again. At this time, the block 13 is automatically compressed and squeezes the reset spring 18. When fully inserted, the filter screen 14 and the activated carbon screen 15 abut against the top of the partition 10. At this time, the block 13 is aligned with the slot 17. Under the elastic force of the reset spring 18, the two blocks 13 extend and are clamped in the corresponding slots 17, so that the filter screen 14 and the activated carbon screen 15 can be fixed to ensure stability during installation, and the dust filtered out by the two filters 14 falls into their respective lower dust grooves 20, and finally enters the dust collecting box 4. After being adsorbed by the magnet 1 22 and the magnet 2 23, it is convenient to disassemble and assemble the dust collecting box 4, and then it is convenient to regularly clean the dust collected in the dust collecting box 4.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fume treatment device for an asphalt paver, characterized in that: The invention comprises four fixing seats (8), two filter screens (14), two activated carbon screens (15) and a mounting plate (1) fixedly connected to a spiral feeding hopper of an asphalt paver; the top of the mounting plate (1) is fixedly connected to a treatment box (2); a partition plate (10) is fixedly connected inside the treatment box (2); one side of the treatment box (2) is fixedly connected to a dust suction pump (6); one side of the dust suction pump (6) is fixedly connected to a dust suction hood (7); the two filter screens (14) and the two activated carbon screens (15) are respectively fixedly connected to the bottom of the corresponding fixing seats (8); a disassembly and replacement component is arranged between the fixing seat (8) and the top of the treatment box (2); a dust collection and cleaning component is arranged between the partition plate (10) and the treatment box (2); and a waste heat collection component is arranged between the partition plate (10) and the treatment box (2).

2. A smoke treatment device for an asphalt paver according to claim 1, characterized in that: The top of the treatment box (2) is provided with four installation openings (9), one side of the fixing seat (8) is provided with a through slot (12), the disassembly and replacement assembly comprises a reset spring (18) arranged in the through slot (12), both ends of the reset spring (18) are fixedly connected with a slide plate (19), the outer sides of the two slide plates (19) are fixedly connected with a clamping block (13), the inner walls on both sides of the installation opening (9) are provided with a clamping slot (17), the two clamping blocks (13) are respectively movably clamped in the corresponding clamping slots (17), the two filter screens (14) and the two activated carbon screens (15) are movably abutted against the top of the partition (10), and the fixing seat (8) is movably plugged into the corresponding installation opening (9).

3. The smoke treatment device for an asphalt paver according to claim 1, characterized in that: A handle is fixedly connected to the top of the fixing seat (8).

4. A smoke treatment device for an asphalt paver according to claim 2, characterized in that: The two slide plates (19) are both slidably sleeved in the through groove (12).

5. The smoke treatment device for an asphalt paver according to claim 1, characterized in that: One side of the treatment box (2) is fixedly connected to a water inlet pipe (16), and the other side of the bottom of the treatment box (2) is fixedly connected to a drainage pipe (5).

6. The smoke treatment device for an asphalt paver according to claim 1, characterized in that: The dust collecting and cleaning component comprises a placement groove (21) provided between the partition (10) and the processing box (2), a dust collecting box (4) being movably placed in the placement groove (21), two dust lowering grooves (20) being provided on the top of the partition (10), and both dust lowering grooves (20) being connected to the dust collecting box (4).

7. A smoke treatment device for an asphalt paver according to claim 6, characterized in that: Magnet 1 (22) is fixedly connected to both sides of the dust collecting box (4), and magnet 2 (23) is fixedly connected to both inner walls of the placement groove (21), and magnet 1 (22) and magnet 2 (23) located on the same side are attracted to each other.

8. The smoke treatment device for an asphalt paver according to claim 6, characterized in that: The two dust lowering grooves (20) correspond to the two filter screens (14).

9. The smoke treatment device for an asphalt paver according to claim 1, characterized in that: The waste heat collection assembly comprises a plurality of heat exchange coils (11) fixedly connected to the bottom of the partition (10), the plurality of heat exchange coils (11) are fixedly connected to the inner walls on both sides of the processing box (2), one end of the plurality of heat exchange coils (11) is fixedly connected to the same main pipeline (3), and one end of the main pipeline (3) is fixedly connected to a connecting pipe (24) for use in communication with a fuel chamber on an asphalt paver.

10. The smoke treatment device for an asphalt paver according to claim 1, characterized in that: Four threaded holes are provided on the top of the mounting plate (1), and the four threaded holes are distributed in a rectangular shape based on the mounting plate (1).

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