Asphalt fume dust purification system

Abstract

The asphalt smoke dust purification system comprises a cyclone dust collector, a first spraying device, a second spraying device and a main fan which are sequentially connected through pipelines. The first spraying device comprises a first tank body, a first spraying pump and a plurality of first spray heads. The first tank body is provided with a first inlet and a first outlet. The first inlet is connected with the cyclone dust collector through a pipeline, and the first outlet is connected with the second spraying device through a pipeline. The first tank body is provided with a first flow guide channel for guiding the flow of asphalt smoke dust. The first flow guide channel extends along a spatial spiral curve track along the axial direction of the first tank body. One end of the first flow guide channel is connected with the first inlet, and the other end is connected with the first outlet. The plurality of first spray heads are arranged in the first flow guide channel and located at the top of the first tank body. The first spraying pump is connected with the first spray heads through a pipeline and is used for conveying an emulsified solution to the first spray heads.

Description

Technical Field

[0001] This disclosure relates to the field of fume purification technology, and more specifically, to an asphalt fume purification system. Background Technology

[0002] The production of asphalt paving generates a large amount of asphalt fumes, which contain solid particles, aerosols, and gaseous organic matter. If asphalt fumes are not handled promptly, they can harm the health of workers in the plant and pollute the environment.

[0003] Baghouse dust collectors are commonly used in related technologies to treat asphalt fumes. However, asphalt fumes easily clog the filter bags in baghouse dust collectors, making them difficult to remove and resulting in low treatment efficiency.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0005] This disclosure provides an asphalt fume purification system, including a cyclone dust collector, a first spray device, a second spray device, and a main fan connected in sequence through pipelines; The cyclone dust collector has an air inlet for the entry of asphalt fumes, and the cyclone dust collector is used to separate solid particles in the asphalt fumes. The first spraying device includes a first tank, a first spray pump, and a plurality of first nozzles. The first tank has a first inlet and a first outlet. The first inlet is located near the bottom of the first tank, and the first outlet is located near the top of the first tank. The first inlet is connected to the cyclone dust collector through a pipeline, and the first outlet is connected to the second spraying device through a pipeline. The first tank has a first guide channel for guiding the flow of asphalt fumes. Along the axial direction of the first tank, the first guide channel extends along a spatial spiral curve trajectory. One end of the first guide channel is connected to the first inlet, and the other end is connected to the first outlet. The plurality of first nozzles are disposed in the first guide channel and located at the top of the first tank. The first spray pump is connected to the first nozzles through a pipeline and is used to deliver the emulsion solution to the first nozzles. The second spraying device is used to spray the asphalt fumes purified by the first spraying device; The main fan is used to deliver the clean air purified by the second spray device to the outside environment.

[0006] In one embodiment of this disclosure, the second spraying device includes a second tank, a second spraying pump, a spraying pipe, and a plurality of second nozzles; The second tank has a second inlet and a second outlet. The second inlet is located near the bottom of the second tank, and the second outlet is located near the top of the second tank. The second inlet is connected to the first outlet via a pipeline, and the second outlet is connected to the main blower via a pipeline. The second tank has a second guide channel for guiding the flow of asphalt fumes. Along the axial direction of the second tank, the second guide channel extends along a spatial spiral curve trajectory. One end of the second guide channel is connected to the second inlet, and the other end is connected to the second outlet. The spray pipe is coaxially arranged with the second tank and is connected to the second spray pump via a pipeline. Multiple second nozzles are spaced apart on the spray pipe along a spatial spiral curve trajectory. The second nozzles are located in the second guide channel. The second spray pump is used to transport the emulsion solution into the spray pipe so that the emulsion solution is sprayed from the second nozzles.

[0007] In one embodiment of this disclosure, the flow direction of the emulsified solution sprayed in the second nozzle is opposite to the flow direction of the asphalt fumes in the second guide channel.

[0008] In one embodiment of this disclosure, the asphalt fume purification system further includes a storage tank containing an emulsion solution. The storage tank is connected to the first spray pump via a pipeline, and the storage tank is also connected to the second spray pump via a pipeline.

[0009] In one embodiment of this disclosure, the asphalt fume purification system further includes a return water pump, wherein the first tank and the second tank are respectively connected to the storage tank via the return water pump, so that the solution deposited in the first tank and the second tank flows into the storage tank.

[0010] In one embodiment of this disclosure, the liquid storage tank has a partition that divides the inner cavity of the liquid storage tank into a first chamber and a second chamber. There is a gap between the partition and the top wall of the liquid storage tank. The first chamber and the second chamber are connected through the gap. The first chamber contains an emulsion solution. The return water pump is connected to the first chamber through a pipeline. The asphalt fume purification system also includes a sedimentation device; the sedimentation device includes a sedimentation pump and a sedimentation tank, the sedimentation tank contains a sedimentation agent, and the second chamber is connected to the sedimentation tank through the sedimentation pump.

[0011] In one embodiment of this disclosure, the asphalt fume purification system further includes a sludge removal device; The desliming device includes a desliming pump and a desliming device. The desliming device is connected to the second chamber through the desliming pump. The desliming pump is used to transport the solid-liquid mixture in the second chamber to the desliming device, and the desliming device is capable of separating the solid-liquid mixture.

[0012] In one embodiment of this disclosure, the desludge has a water outlet, which is connected to the first chamber via a pipeline, and the water outlet is used to discharge the liquid separated by the desludge.

[0013] In one embodiment of this disclosure, the asphalt fume purification system further includes a feeding device; the feeding device includes a feeding pump and a material tank, the material tank contains an emulsifier, and the material tank is connected to the first chamber via the feeding pump.

[0014] In one embodiment of this disclosure, the asphalt fume purification system further includes a stirring device, which includes a stirring motor, a stirring shaft, and multiple sets of stirring blades. The stirring motor is located at the top of the liquid storage tank. The stirring shaft and the stirring motor are coaxially fixed and extend into the first chamber. The multiple sets of stirring blades are distributed along the axial direction of the stirring shaft and fixed to the stirring shaft.

[0015] In the embodiments of this disclosure, by spraying the asphalt fumes twice and using an emulsion solution as the spraying liquid, the organic matter in the asphalt fumes is easily dissolved in water, facilitating the generation of clean air. Compared with related technologies for treating asphalt fumes, this method improves efficiency and is beneficial to protecting the environment and the health of workers. Simultaneously, by designing the first guide channel to extend along a spatial spiral curve, the asphalt fumes, upon entering the first tank, spiral upwards along the first guide channel, increasing the flow path of the asphalt fumes in the first guide channel. This promotes sufficient contact between the emulsion solution and the asphalt fumes, improving purification efficiency. Furthermore, spraying the asphalt fumes helps lower their temperature, causing the organic matter in the asphalt fumes to condense and aggregate due to cooling, making it easier for the emulsion solution to capture the organic matter, thus improving the treatment efficiency of the organic matter in the asphalt fumes.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0018] Figure 1 This is a schematic diagram of the connection of an asphalt fume purification system in one embodiment of the present disclosure.

[0019] Figure 2 for Figure 1 A partial schematic diagram is provided to illustrate the structure of the second spray device.

[0020] Explanation of reference numerals in the attached figures: 1. Cyclone dust collector; 2. First spray device; 21. First tank; 22. First spray pump; 23. First nozzle; 3. Second spray device; 31. Second tank; 32. Second spray pump; 33. Second nozzle; 34. Spray pipe; 4. Main fan; 5. Liquid storage tank; 51. Baffle; 6. Return water pump; 7. Sedimentation device; 71. Sedimentation tank; 72. Sedimentation pump; 8. Desliming device; 81. Desliming pump; 82. Desliming device; 9. Feeding device; 91. Feeding pump; 92. Material box. Detailed Implementation

[0021] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore detailed descriptions of them will be omitted. Furthermore, the drawings are merely illustrative of this disclosure and are not necessarily drawn to scale.

[0022] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0023] The terms “a,” “one,” “the,” “the,” and “at least one” are used to indicate the presence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first,” “second,” and “third,” etc., are used only as markers and are not a limitation on the number of objects.

[0024] This disclosure provides an asphalt fume purification system. See also: Figure 1The asphalt fume purification system includes a cyclone dust collector 1, a first spray device 2, a second spray device 3, and a main fan 4, which are connected in sequence through pipelines. The cyclone dust collector 1 has an air inlet for the asphalt fume to enter and is used to separate solid particles from the asphalt fume. The first spraying device 2 includes a first tank 21, a first spray pump 22, and multiple first nozzles 23. The first tank 21 has a first inlet and a first outlet. The first inlet is located near the bottom of the first tank 21, and the first outlet is located near the top of the first tank 21. The first inlet is connected to the cyclone dust collector 1 through a pipeline, and the first outlet is connected to the second spraying device 3 through a pipeline. The first tank 21 has a first guide channel for guiding the flow of asphalt fumes. Along the axial direction of the first tank 21, the first guide channel extends along a spatial spiral curve trajectory. One end of the first guide channel is connected to the first inlet, and the other end is connected to the first outlet. Multiple first nozzles 23 are located in the first guide channel and at the top of the first tank 21. The first spray pump 22 is connected to the first nozzles 23 through a pipeline and is used to transport the emulsion solution to the first nozzles 23. The second spraying device 3 is used to spray the asphalt fumes purified by the first spraying device 2. The main fan 4 is used to transport the clean air purified by the second spraying device 3 to the external environment.

[0025] Thus, asphalt fumes enter the cyclone dust collector 1 through the air inlet. The cyclone dust collector 1 separates the solid particles from the asphalt fumes. The asphalt fumes after solid particle separation are then introduced into the first guide channel through the first inlet. Under the action of the first spray pump 22, multiple first nozzles 23 spray out emulsion solution, causing the emulsion solution to spray the asphalt fumes, thereby making the pollutants in the asphalt fumes miscible with the emulsion solution, achieving the first spray purification of the asphalt fumes. After being purified by the first spray device 2, the asphalt fumes enter the second spray device 3 through the first outlet for a second spray purification to clean air. Finally, the main fan 4 delivers the clean air purified by the second spray device 3 to the outside environment. In the embodiment of this disclosure, by spraying the asphalt fumes twice and using an emulsion solution as the spray liquid, the organic matter in the asphalt fumes is easily miscible with water, facilitating the generation of clean air. Compared with related technologies for treating asphalt fumes, this method improves efficiency and is beneficial to protecting the environment and the health of workers. Meanwhile, by designing the first guide channel to extend along a spatial spiral curve, the asphalt fumes entering the first tank 21 will spiral upwards along the first guide channel, increasing the flow path of the asphalt fumes in the first guide channel. This facilitates full contact between the emulsion solution and the asphalt fumes, improving purification efficiency. Furthermore, spraying the asphalt fumes helps lower their temperature, making it easier for organic matter in the asphalt fumes to be captured by the emulsion due to cooling and condensation, thus improving the treatment efficiency of organic matter in the asphalt fumes.

[0026] In one embodiment of this disclosure, the emulsified solution may be made from asphalt emulsifier to facilitate the mixing of organic matter in asphalt fumes with water, thereby improving air purification efficiency.

[0027] In one embodiment of this disclosure, the cyclone dust collector 1 has an exhaust port, which is connected to the first inlet via a pipeline.

[0028] In one embodiment of this disclosure, a screw conveyor structure may be provided inside the first tank 21, and the screw conveyor structure is coaxially arranged with the first tank 21 to facilitate the formation of a first flow channel. In other embodiments of this disclosure, the first flow channel may not be formed by a screw conveyor structure, but by forming a spatial spiral hole in a solid tank to form the first flow channel.

[0029] In one embodiment of this disclosure, see Figure 1 To prevent backflow of the emulsion solution, a first check valve may be provided on the pipeline between the first spray pump 22 and the first nozzle 23.

[0030] In one embodiment of this disclosure, see Figure 1 , Figure 2 The second spraying device 3 includes a second tank 31, a second spray pump 32, a spray pipe 34, and multiple second nozzles 33. The second tank 31 has a second inlet and a second outlet. The second inlet is located near the bottom of the second tank 31, and the second outlet is located near the top of the second tank 31. The second inlet is connected to the first outlet via a pipeline, and the second outlet is connected to the main blower 4 via a pipeline. The second tank 31 has a second guide channel for guiding the flow of asphalt fumes. Along the axial direction of the second tank 31, the second guide channel extends along a spatial spiral curve trajectory. One end of the second guide channel is connected to the second inlet, and the other end is connected to the second outlet. The spray pipe 34 is coaxially arranged with the second tank 31 and is connected to the second spray pump 32 via a pipeline. Multiple second nozzles 33 are spaced apart on the spray pipe 34 along a spatial spiral curve trajectory. The second nozzles 33 are located within the second guide channel. The second spray pump 32 is used to transport the emulsion solution into the spray pipe 34 so that the emulsion solution is sprayed from the second nozzles 33. Thus, by designing the second guide channel to extend along a spatial spiral curve, the asphalt fumes entering the second tank 31 will spiral upwards along the second guide channel, increasing the flow path of the asphalt fumes and facilitating full contact between the emulsion solution and the asphalt fumes, thereby improving purification efficiency. Furthermore, by arranging multiple second nozzles 33 at intervals along a spatial spiral curve on the spray pipe 34, the asphalt fumes will have more thorough contact with the emulsion solution during their spiral ascent in the second guide channel, further enhancing the purification effect of the asphalt fumes.

[0031] In one embodiment of this disclosure, due to the presence of the second spray pump 32, the flow direction of the emulsion solution sprayed in the second nozzle 33 is opposite to the flow direction of the asphalt fumes in the second guide channel, which can further increase the contact area between the asphalt fumes and the emulsion solution and further improve the purification effect of the asphalt fumes.

[0032] In one embodiment of this disclosure, a screw conveyor structure may be provided inside the second tank 31, and the screw conveyor structure is coaxially arranged with the second tank 31 to facilitate the formation of a second flow channel. In other embodiments of this disclosure, the second flow channel may not be formed by a screw conveyor structure, but by forming a spatial spiral hole in a solid tank to form the second flow channel.

[0033] In one embodiment of this disclosure, see Figure 1 , Figure 2 To prevent backflow of the emulsion solution, a second check valve may be installed on the pipeline between the second spray pump 32 and the spray pipe 34.

[0034] In one embodiment of this disclosure, both the first nozzle 23 and the second nozzle 33 can be movable nozzles, so as to adjust the spray angle of the first nozzle 23 and the second nozzle 33 as needed, thereby maximizing the purification effect of asphalt fumes.

[0035] In one embodiment of this disclosure, the bottoms of the first tank 21 and the second tank 31 may be arranged in an inverted cone shape to facilitate the deposition of the emulsion solution in the first tank 21 and the second tank 31, and to facilitate subsequent discharge.

[0036] In one embodiment of this disclosure, see Figure 1 , Figure 2 The asphalt fume purification system also includes a storage tank 5 containing an emulsion solution. The storage tank 5 is connected to the first spray pump 22 via a pipeline, and also to the second spray pump 32 via a pipeline. This allows the first spray pump 22 to deliver the emulsion solution from the storage tank 5 to the first spray head 23, and the second spray pump 32 to deliver the emulsion solution from the storage tank 5 to the second spray head 33, thereby achieving the purification of asphalt fume.

[0037] In one embodiment of this disclosure, see Figure 1 The asphalt fume purification system also includes a return water pump 6. The first tank 21 and the second tank 31 are respectively connected to the storage tank 5 through the same return water pump 6, so that the solution deposited in the first tank 21 and the second tank 31 flows into the storage tank 5, realizing the recycling of the emulsion solution and reducing waste.

[0038] In one embodiment of this disclosure, valves may be provided on the pipelines between devices to facilitate control of the opening and closing of the pipelines.

[0039] In one embodiment of this disclosure, see Figure 1 A third check valve may be installed on the pipeline between the return water pump 6 and the storage tank 5 to prevent the emulsion solution in the storage tank 5 from flowing back into the first tank 21 and the second tank 31.

[0040] In one embodiment of this disclosure, see Figure 1 The storage tank 5 has a partition 51, which is welded to the inner wall of the storage tank 5. The partition 51 divides the inner cavity of the storage tank 5 into a first chamber and a second chamber. There is a gap between the partition 51 and the top wall of the storage tank 5, and the first chamber and the second chamber are connected through the gap. The first chamber contains an emulsion solution, and the return water pump 6 is connected to the first chamber through a pipeline. The asphalt fume purification system also includes a sedimentation device 7; the sedimentation device 7 includes a sedimentation pump 72 and a sedimentation tank 71, which contains a precipitant. The second chamber is connected to the sedimentation tank 71 through the sedimentation pump 72. Thus, the storage tank 5 is divided into a first chamber and a second chamber by the partition 51. The solution after the organic matter in the asphalt fume and the emulsion solution are mixed first flows into the first chamber. When the liquid level of the solution in the first chamber is higher than the top wall of the partition 51, the solution in the first chamber will overflow into the second chamber. Under the action of the sedimentation pump 72, the precipitant in the sedimentation tank 71 will be transported to the second chamber to react with the solution overflowing from the first chamber, so that the organic matter in the asphalt fume in the emulsion solution will precipitate and separate from the emulsion solution, which is beneficial to the purification treatment of the organic matter in the asphalt fume.

[0041] In one embodiment of this disclosure, see Figure 1 The asphalt fume purification system also includes a sludge removal device 8. The sludge removal device 8 includes a sludge pump 81 and a sludge remover 82. The sludge remover 82 is connected to the second chamber via the sludge pump 81. The sludge pump 81 transports the solid-liquid mixture from the second chamber to the sludge remover 82, where it separates the solid and liquid components. Thus, the sludge pump 81 transports the solid-liquid mixture from the second chamber to the sludge remover 82. After processing by the sludge remover 82, the solid and liquid are separated, thereby removing organic matter from the asphalt fume and facilitating its purification.

[0042] In one embodiment of this disclosure, see Figure 1 The desliming device 82 has a water outlet, which is connected to the first chamber via a pipeline. The water outlet is used to discharge the emulsion liquid separated by the desliming device 82. In this way, the emulsion solution separated by the desliming device 82 is returned to the first chamber, reducing waste and lowering costs.

[0043] In one embodiment of this disclosure, the first chamber may be connected to tap water to facilitate the preparation of the emulsion solution.

[0044] In one embodiment of this disclosure, the precipitant can be a polyaluminum chloride, polyferric sulfate, polyacrylamide, or other precipitants to facilitate the settling of organic matter in asphalt fumes.

[0045] In one embodiment of this disclosure, see Figure 1 The asphalt fume purification system also includes a feeding device 9. The feeding device 9 includes a feeding pump 91 and a material tank 92. The material tank 92 contains emulsifier, and the material tank 92 is connected to the first chamber via the feeding pump 91. In this way, the emulsifier in the material tank 92 can be transported to the first chamber by the feeding pump 91, which facilitates the preparation of the emulsion solution.

[0046] In one embodiment of this disclosure, the asphalt fume purification system further includes a stirring device. Two stirring devices are included, one in the first chamber and the other in the second chamber. Each stirring device may include a stirring motor, a stirring shaft, and multiple sets of stirring blades. The stirring motor is located at the top of the storage tank 5. The stirring shaft and the stirring motor are coaxially fixed and extend into either the first or second chamber. The multiple sets of stirring blades are distributed along the axial direction of the stirring shaft and fixed to it. Thus, the solutions in the first and second chambers can be stirred by the stirring device. Furthermore, when there is excessive sediment (solid particles of asphalt fume) at the bottom of the first chamber, the stirring blades in the first chamber can stir the sediment, causing it to suspend and overflow from the gap at the top of the partition 51 into the second chamber, facilitating the removal of sediment from the first chamber and improving the reliability of the asphalt fume purification system.

[0047] In one embodiment of this disclosure, the asphalt fume purification system may further include a gas-liquid separator, which may be connected to the main fan 4 so that the clean air discharged from the main fan 4 enters the gas-liquid separator for gas-liquid separation, thereby facilitating the drying of the air discharged to the outside.

[0048] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. An asphalt fume purification system, characterized in that, It includes a cyclone dust collector, a first spray device, a second spray device, and a main fan, which are connected in sequence through pipelines; The cyclone dust collector has an air inlet for the entry of asphalt fumes, and the cyclone dust collector is used to separate solid particles in the asphalt fumes. The first spraying device includes a first tank, a first spray pump, and a plurality of first nozzles. The first tank has a first inlet and a first outlet. The first inlet is located near the bottom of the first tank, and the first outlet is located near the top of the first tank. The first inlet is connected to the cyclone dust collector through a pipeline, and the first outlet is connected to the second spraying device through a pipeline. The first tank has a first guide channel for guiding the flow of asphalt fumes. Along the axial direction of the first tank, the first guide channel extends along a spatial spiral curve trajectory. One end of the first guide channel is connected to the first inlet, and the other end is connected to the first outlet. The plurality of first nozzles are disposed in the first guide channel and located at the top of the first tank. The first spray pump is connected to the first nozzles through a pipeline and is used to deliver the emulsion solution to the first nozzles. The second spraying device is used to spray the asphalt fumes purified by the first spraying device; The main fan is used to deliver the clean air purified by the second spray device to the outside environment.

2. The asphalt fume purification system according to claim 1, characterized in that, The second spraying device includes a second tank, a second spraying pump, a spray pipe, and multiple second nozzles; The second tank has a second inlet and a second outlet. The second inlet is located near the bottom of the second tank, and the second outlet is located near the top of the second tank. The second inlet is connected to the first outlet via a pipeline, and the second outlet is connected to the main blower via a pipeline. The second tank has a second guide channel for guiding the flow of asphalt fumes. Along the axial direction of the second tank, the second guide channel extends along a spatial spiral curve trajectory. One end of the second guide channel is connected to the second inlet, and the other end is connected to the second outlet. The spray pipe is coaxially arranged with the second tank and is connected to the second spray pump via a pipeline. Multiple second nozzles are spaced apart on the spray pipe along a spatial spiral curve trajectory. The second nozzles are located in the second guide channel. The second spray pump is used to transport the emulsion solution into the spray pipe so that the emulsion solution is sprayed from the second nozzles.

3. The asphalt fume purification system according to claim 2, characterized in that, The emulsified solution sprayed in the second nozzle flows in the opposite direction to the asphalt fumes in the second guide channel.

4. The asphalt fume purification system according to claim 2, characterized in that, The asphalt fume purification system also includes a storage tank containing an emulsion solution. The storage tank is connected to the first spray pump via a pipeline, and the storage tank is also connected to the second spray pump via a pipeline.

5. The asphalt fume purification system according to claim 4, characterized in that, The asphalt fume purification system also includes a return water pump. The first tank and the second tank are respectively connected to the storage tank through the return water pump, so that the solution deposited in the first tank and the second tank flows into the storage tank.

6. The asphalt fume purification system according to claim 5, characterized in that, The liquid storage tank has a partition that divides the inner cavity of the liquid storage tank into a first chamber and a second chamber. There is a gap between the partition and the top wall of the liquid storage tank. The first chamber and the second chamber are connected through the gap. The first chamber contains an emulsion solution. The return water pump is connected to the first chamber through a pipeline. The asphalt fume purification system also includes a sedimentation device; the sedimentation device includes a sedimentation pump and a sedimentation tank, the sedimentation tank contains a sedimentation agent, and the second chamber is connected to the sedimentation tank through the sedimentation pump.

7. The asphalt fume purification system according to claim 6, characterized in that, The asphalt fume purification system also includes a sludge removal device; The desliming device includes a desliming pump and a desliming device. The desliming device is connected to the second chamber through the desliming pump. The desliming pump is used to transport the solid-liquid mixture in the second chamber to the desliming device, and the desliming device is capable of separating the solid-liquid mixture.

8. The asphalt fume purification system according to claim 7, characterized in that, The desludge decontaminator has a water outlet, which is connected to the first chamber via a pipeline. The water outlet is used to discharge the liquid separated by the desludge decontaminator.

9. The asphalt fume purification system according to claim 6, characterized in that, The asphalt fume purification system also includes a feeding device; the feeding device includes a feeding pump and a material tank, the material tank contains an emulsifier, and the material tank is connected to the first chamber through the feeding pump.

10. The asphalt fume purification system according to any one of claims 6 to 9, characterized in that, The asphalt fume purification system also includes a stirring device, which includes a stirring motor, a stirring shaft, and multiple sets of stirring blades. The stirring motor is located at the top of the liquid storage tank. The stirring shaft and the stirring motor are coaxially fixed and extend into the first chamber. The multiple sets of stirring blades are distributed along the axial direction of the stirring shaft and fixed to the stirring shaft.

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