CN216604717U

CN216604717U - Asphalt flue gas purifying device

Info

Publication number: CN216604717U
Application number: CN202123296023.6U
Authority: CN
Inventors: 张振忠; 李少杰; 李朋博; 殷硕
Original assignee: Hebei Xianhe Zhengyuan Environmental Treatment Technology Co ltd
Current assignee: Hebei Xianhe Zhengyuan Environmental Treatment Technology Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-05-27
Anticipated expiration: 2031-12-24

Abstract

The utility model provides an asphalt flue gas purification device, which comprises the following components in sequence: the dust collecting unit comprises a collecting box body and a dust feeder, the collecting box body is provided with a first air inlet, a collecting cavity and a first air outlet which are arranged in a connected mode, the collecting box body is provided with a feed opening communicated with the collecting cavity, and the dust feeder is used for adding dust into the collecting cavity through the feed opening; the dust removal unit comprises a dust remover, the dust remover is provided with a second air inlet, a dust removal cavity and a second air outlet which are connected, and the second air inlet is communicated with the first air outlet; and the washing and purifying unit comprises a purifier, the purifier is provided with a third air inlet, a washing filler section and a third air outlet which are connected, and the third air inlet is communicated with the second air outlet. The utility model solves the problem that the use effect of the smoke treatment device is easily influenced due to the viscosity of the asphalt smoke, eliminates or reduces the content of toxic and harmful substances in the asphalt smoke, and avoids the harm to the environment and human bodies.

Description

Asphalt flue gas purifying device

Technical Field

The utility model belongs to the technical field of asphalt flue gas treatment, and particularly relates to an asphalt flue gas purification device.

Background

The asphalt is widely applied to industrial production, and can be applied to the fields of highway pavement, waterproof material preparation and the like. Asphalt used in industrial production is usually supplied from asphalt mixing plants, which generate a large amount of asphalt fumes during operation, and the asphalt fumes, if left untreated, escape directly into the surrounding atmosphere and cause damage to the environment and human bodies. Contain the solid, liquid, the three kinds of looks state particulate matters of gas simultaneously in the pitch flue gas, the pitch flue gas still has certain viscidity simultaneously, can take place to block up after current flue gas processing apparatus live time is long, or the working surface forms the adhesive linkage of one deck viscidity, influences the result of use, and the clearance difficulty.

SUMMERY OF THE UTILITY MODEL

The utility model provides an asphalt flue gas purification device, and aims to solve the problems that the existing flue gas treatment device is blocked after long-term use, or a viscous adhesion layer is formed on the working surface, so that the use effect is influenced, and the cleaning is difficult.

In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides an asphalt gas cleaning device, including setting gradually: the dust collecting unit comprises a collecting box body and a dust feeder, wherein the collecting box body is provided with a first air inlet, a collecting cavity and a first air outlet which are arranged in a connected mode, the collecting box body is provided with a feed opening communicated with the collecting cavity, and the dust feeder is used for adding dust into the collecting cavity through the feed opening; the dust removal unit comprises a dust remover, the dust remover is provided with a second air inlet, a dust removal cavity and a second air outlet which are connected, and the second air inlet is communicated with the first air outlet; and the washing and purifying unit comprises a purifier, the purifier is provided with a third air inlet, a washing filler section and a third air outlet which are connected, and the third air inlet is communicated with the second air outlet.

In one possible implementation manner, the capture chamber comprises a first chamber, a second chamber and a third chamber which are successively arranged in the direction from the first air inlet to the first air outlet; one end, far away from the second chamber, of the first chamber is communicated with the first air inlet, one end, far away from the second chamber, of the third chamber is communicated with the first air outlet, the cross-sectional area of the first chamber is gradually increased along the direction from the first air inlet to the second chamber, and the cross-sectional area of the third chamber is gradually decreased along the direction from the second chamber to the first air outlet.

In a possible implementation manner, the bottom of the trapping box body is also provided with a dust collecting cavity which is connected with the trapping cavity.

In a possible implementation mode, the bottom of the trapping box body is provided with an ash removal pipeline communicated with the dust collecting cavity, and the ash removal pipeline is provided with an ash discharge valve.

In one possible implementation, the dust feeder includes: one end of the feeding pipeline is communicated with the feeding port; the storage bin is communicated with the other end of the feeding pipeline; and the vibrating motor is arranged on the feeding pipeline and used for providing the reciprocating exciting force along the direction from the storage bin to the feeding opening.

In a possible implementation mode, the feed inlet is close to one end of the feed inlet is provided with a plurality of orientations the sieve mesh of the feed inlet, the dust feeder further comprises a protection pipeline, one end of the protection pipeline is connected with the feed inlet, the protection pipeline covers the coverage area of the sieve mesh, and the other end of the protection pipeline is communicated with the feed inlet.

In one possible implementation manner, the dust remover is a bag-type dust remover, and a plurality of dust-removing filter bags are arranged in a dust removing cavity of the bag-type dust remover.

In one possible implementation, the wash packing section comprises: the first packing layers are arranged in the shell of the purifier and are arranged at intervals; and the plurality of spray pipes are arranged above the corresponding packing layers.

In one possible implementation, the purifier further comprises a biological filler section connected between the washing filler section and the third gas outlet.

In a possible implementation manner, the purifier has a purification chamber, a partition board is arranged in the purification chamber, the partition board partitions the purification chamber to form the washing filler section and the biological filler section, and the partition board and the inner wall of the purification chamber enclose to form an intermediate channel communicating the washing filler section and the biological filler section.

When the asphalt flue gas purification device provided by the utility model is used, asphalt flue gas sequentially passes through the dust collecting unit, the dust removing unit and the washing and purifying unit, dust (such as slaked lime) can be added into the collecting box body by the dust feeder, and the dust can wrap sticky particles and liquid drops in the asphalt flue gas to form smooth large particles. The bottom of entrapment box is fallen to big particulate matter under the effect of gravity to reduce the concentration and the viscosity of pitch flue gas, avoid viscidity particulate matter and liquid drop to get into subsequent dust removal and influence the normal use of dust removal unit. The dust removal unit can filter and collect the particulate matter of inviscid in the pitch flue gas, and the concentration of pitch flue gas further reduces behind the dust removal unit, and the waste gas of low concentration carries out purification treatment through washing purification unit at last. So set up, solved because the pitch flue gas has the viscidity to influence the difficult problem of smoke treatment device's result of use easily, eliminated or reduced the content of poisonous and harmful substance in the pitch flue gas, avoid it to cause harm to environment and human body.

Drawings

FIG. 1 is a schematic structural diagram of an asphalt flue gas purification device according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a schematic structural view of a trap box according to an embodiment of the present invention;

FIG. 4 is a schematic view of a dust feeder according to an embodiment of the present invention;

FIG. 5 is a schematic view of another angle of the dust feeder according to an embodiment of the present invention.

Description of reference numerals:

1. asphalt flue gas purifying device

10. Dust collection unit 11, collection box 111, and first air inlet

112. A trapping cavity 1121, a first chamber 1122, a second chamber

1123. Third chamber 113, first air outlet 114 and dust collecting chamber

115. Charging port 116, ash cleaning pipeline 117 and ash discharging valve

12. Dust feeder 121, feeding pipeline 1211 and sieve pore

122. Storage bin 123, vibrating motor 124 and protective pipeline

20. Dust removal unit 30, washing and purifying unit 31, and purifier

311. Third air inlet 312, washing filler section 3121, first filler layer

3122. Spray pipe 313, biological filler section 314, third gas outlet

315. Partition 316, intermediate channel 2, gas conduit

3. Draught fan

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "secured to," "secured to," or "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "in communication" it can be directly in communication with the other element via a passageway, or indirectly in communication with the other element via other elements, lines, valves, etc. When an element is referred to as being "disposed on," "disposed on" another element, it can be directly on the other element or intervening elements may also be present. "plurality" means two or more. "at least one" refers to one or more quantities. "a number" means one or more than one.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Referring to fig. 1 to 5, an asphalt flue gas cleaning device 1 according to an embodiment of the present invention will be described.

Referring to fig. 1, an embodiment of the present invention provides an asphalt flue gas purification apparatus 1, including sequentially arranged: the dust collecting unit 10 comprises a collecting box body 11 and a dust feeder 12, wherein the collecting box body 11 is provided with a first air inlet 111, a collecting cavity 112 and a first air outlet 113 which are arranged in a connecting mode, the collecting box body 11 is provided with a feed opening 115 communicated with the collecting cavity 112, and the dust feeder 12 is used for adding dust into the collecting cavity 112 through the feed opening 115; the dust removal unit 20 comprises a dust remover, the dust remover is provided with a second air inlet, a dust removal cavity and a second air outlet which are connected, and the second air inlet is communicated with the first air outlet 113; and a washing and purifying unit 30, which comprises a purifier 31, wherein the purifier 31 is provided with a third air inlet 311, a washing filler section 312 and a third air outlet 314 which are arranged in a connecting way, and the third air inlet 311 is communicated with the second air outlet.

As shown in fig. 1, the arrows indicate the flow direction of the asphalt flue gas when the asphalt flue gas cleaning device 1 is in use. In the embodiment of the utility model, when the device is installed, the trapping box body 11, the dust remover and the purifier 31 are sequentially communicated through the plurality of gas pipelines 2, meanwhile, the gas pipelines 2 are also provided with the draught fan 3 or the blower, asphalt smoke sequentially passes through the dust trapping unit 10, the dust removing unit 20 and the washing and purifying unit 30 under the action of the draught fan 3 or the blower and is discharged from the third gas outlet 314, and the purified asphalt smoke is directly discharged into the atmosphere according to the condition or enters a subsequent waste gas treatment device such as a VOC (volatile organic compound) treatment device, an RTO (regenerative thermal oxidizer) furnace and the like for further treatment.

The dust collecting unit 10 adopts a dry powder collecting mode, the dust collecting unit 10 comprises a collecting box body 11 and a dust feeder 12, the dust feeder 12 can spray or scatter dust (particularly slaked lime) into the collecting cavity 112, and after asphalt smoke passes through the coverage range of the dust, viscous particles and liquid drops are wrapped by the dust to form large particles and then fall to the bottom of the collecting box body 11. The trapping box body 11 and the dust feeder 12 act together to capture and collect the viscous particles and liquid drops in the asphalt smoke.

The dust removal unit 20 includes one or more dust removers for blocking and collecting the particles entering the dust removal unit, where the particles may be original non-sticky particles in the asphalt flue gas or dust carried by the asphalt flue gas after passing through the dust collection unit 10. The dust remover can adopt the structural forms of electrostatic dust removal, cloth bag dust removal and the like, and one or more dust removers can be arranged according to the use requirement.

The washing and purifying unit 30 is used for washing and purifying the asphalt flue gas, and when the asphalt flue gas passes through the washing and filling section 312, the water or the washing liquid in the washing and filling section 312 can absorb harmful waste gas, so that the asphalt flue gas meets the requirement of clean emission. Or the toxic and harmful components in the asphalt smoke after washing and purification are further reduced, and convenience is provided for the next purification treatment.

It should be noted that, in the embodiment of the present invention, the dust collection unit 10, the dust removal unit 20, and the washing and purifying unit 30 may further include components such as a gas valve, a pipe, and a sealing member in addition to the above-mentioned structure, so as to have better use effect.

When the asphalt flue gas purification device 1 provided by the utility model is used, asphalt flue gas sequentially passes through the dust trapping unit 10, the dust removal unit 20 and the washing and purifying unit 30, the dust feeder 12 can add dust (such as slaked lime) into the trapping box body 11, and the dust can wrap sticky particles and liquid drops in the asphalt flue gas to form smooth large particles. The bottom of entrapment box 11 is fallen to big particulate matter under the effect of gravity to reduce the concentration and the viscosity of pitch flue gas, avoid viscidity particulate matter and liquid drop to get into subsequent dust removal and influence the normal use of dust removal unit 20. Dust removal unit 20 can filter and collect the particulate matter of inviscid in the pitch flue gas, and the concentration of pitch flue gas further reduces behind dust removal unit 20, and the waste gas of low concentration is finally through washing purification unit 30 purification treatment. So set up, solved because the pitch flue gas has the viscidity to influence the difficult problem of smoke treatment device's result of use easily, eliminated or reduced the content of poisonous and harmful substance in the pitch flue gas, avoid it to cause harm to environment and human body.

Referring to FIGS. 1 and 3, in some possible embodiments, the capture chamber 112 includes a first chamber 1121, a second chamber 1122, and a third chamber 1123 successively arranged in a direction from the first gas inlet 111 to the first gas outlet 113; an end of the first chamber 1121, which is away from the second chamber 1122, communicates with the first air inlet 111, an end of the third chamber 1123, which is away from the second chamber 1122, communicates with the first air outlet 113, a cross-sectional area of the first chamber 1121 gradually increases in a direction from the first air inlet 111 to the second chamber 1122, and a cross-sectional area of the third chamber 1123 gradually decreases in a direction from the second chamber 1122 to the first air outlet 113.

In this embodiment, the asphalt flue gas enters the capture cavity 112 through the first air inlet 111, sequentially passes through the first chamber 1121, the second chamber 1122 and the third chamber 1123, and is discharged from the first air outlet 113 to enter the subsequent dust removal unit 20.

The charging opening 115 is arranged at a corresponding position of the second chamber 1122, the cross-sectional area of the second chamber 1122 can be constant, the first chamber 1121 and the third chamber 1123 are arranged to be of a diameter-variable structure, when asphalt flue gas enters the first chamber 1121 from the first air inlet 111, the cross-sectional area of the first chamber 1121 gradually increases along the flow direction of the flue gas, the flow speed of the flue gas is reduced, the asphalt flue gas can be better contacted with dust in the capture cavity 112 (mainly the second chamber 1122), so that the dust can fully capture sticky particles and liquid drops in the asphalt flue gas, and the use effect is ensured. The cross-sectional area of the third chamber 1123 gradually decreases along the direction of the flow of the flue gas, and the inner wall of the third chamber 1123 can play a role in intercepting particulate matter and dust from entering the dust removing unit 20 from the first gas outlet 113 to some extent.

Referring to fig. 1 and 3, in some possible embodiments, the bottom of the capture box 11 further has a dust collection chamber 114 disposed in communication with the capture chamber 112. The dust collection chamber 114 may be a funnel-shaped structure, and can collect the particles and dust deposited in the collection box 11, so as to clean the particles and dust conveniently. The number of the dust collecting chambers 114 can be one or more, and in order to ensure that the dust collecting chambers 114 have good use effect, the coverage of the dust collecting chambers 114 at least should correspond to the coverage of the second chamber 1122.

Referring to fig. 1 and 3, in some possible embodiments, the bottom of the collecting box 11 is provided with an ash cleaning pipe 116 communicated with the dust collecting chamber 114, and the ash cleaning pipe 116 is provided with an ash discharging valve 117. When it is desired to clean the particulate matter and dust in the dust collection chamber 114, the ash discharge valve 117 is opened to allow the particulate matter and dust to be discharged from the ash removal conduit 116. The dust discharging valve 117 may be a manual valve or an electric control valve.

Referring to fig. 4 and 5, in some possible embodiments, the dust feeder 12 includes: a feed line 121, one end of which is communicated with the feed port 115; a storage bin 122 communicated with the other end of the feeding pipe 121; and a vibration motor 123 disposed in the feeding pipe 121 for providing a reciprocating exciting force to the feeding pipe 121 in a direction from the storage bin 122 to the feeding port 115.

In the embodiment, the dust feeder 12 adopts a vibration feeding mode, the storage bin 122 is used for storing dust (such as slaked lime), the discharge port of the storage bin 122 is communicated with the feeding pipe 121, and the dust is conveyed to the feeding port 115 of the collecting box 11 along the feeding pipe 121 under the action of the vibration motor 123. The feed opening 115 is opened on the top wall of the trapping box body 11, and dust is scattered from the feed opening 115 and is dispersed and filled in the whole trapping cavity 112, and finally adheres to the viscous particulate matters and liquid drops in the trapping cavity 112 to form large particulate matters and falls to the bottom of the trapping cavity 112.

Referring to fig. 4 and 5, in some possible embodiments, the end of the feeding pipe 121 adjacent to the feeding port 115 is provided with a plurality of sieve holes 1211 facing the feeding port 115, and the dust feeder 12 further includes a protection pipe 124, one end of the protection pipe 124 is connected to the feeding pipe 121 and covers the feeding pipe 121, and the protection pipe covers the coverage area of the sieve holes 1211, and the other end is communicated with the feeding port 115.

In this embodiment, the feeding pipe 121 is provided with a plurality of sieve holes 1211, the dust enters the feeding port 115 through the sieve holes 1211, and the arrangement of the sieve holes 1211 enables the dust entering the capturing cavity 112 to be more uniform and fine, and can be more fully contacted with the sticky particles and liquid drops in the asphalt flue gas. Because dust granule is little, the quality is light, through setting up protection pipeline 124, avoid the dust to be blown off to the external world by the influence of air flow.

It should be noted that, because the feeding pipe 121 may vibrate in a small range under the action of the vibrating motor 123, in order to avoid interference of components, a flexible connection may be adopted between the protection pipe 124 and the feeding pipe 121, and the flexible connection may allow a small-amplitude displacement between the feeding pipe 121 and the protection pipe 124.

Referring to fig. 1, in some possible embodiments, the dust collector is a bag-type dust collector, and a dust collection chamber of the bag-type dust collector has a plurality of dust collection filter bags. The asphalt flue gas enters the bag-type dust collector from the first gas outlet 113, and particulate matters in the asphalt flue gas are removed in the bag-type dust collector through the filtration of the dust-collecting filter bag. Because the particulate matters in the asphalt flue gas entering the bag-type dust collector do not have viscosity, the bag-type dust collector in the embodiment can be a pulse dust collector, the pulse dust collector has a back flushing function, the particulate matters on the dust-removing filter bag are removed through pulse back flushing, the automatic cleaning function is realized, and the labor intensity of operators can be reduced.

Referring to fig. 1 and 2, in some possible embodiments, the wash packing section 312 includes: a plurality of first packing layers 3121 disposed in the housing of the purifier 31, the plurality of first packing layers 3121 being disposed at intervals; and a plurality of spray pipes 3122 arranged above the corresponding packing layer.

In this embodiment, the first packing layer 3121 has granular packing, and the shower 3122 is used for to the first packing layer 3121 shower water or other liquid, and when the pitch flue gas was through first packing layer 3121, the poisonous harmful substance in the pitch flue gas can be absorbed or neutralized to water or other liquid that first packing layer 3121 stored, has eliminated or has reduced the content of poisonous harmful substance in the pitch flue gas, avoids it to cause harm to environment and human body.

The first packing layer 3121 can be formed by folding stainless steel buckled plate, also can be by active carbon, haydite etc. and first packing layer 3121 has the clearance and can make the pitch flue gas pass through, can also store certain water or other liquid simultaneously, makes the pitch flue gas pass through the time poisonous harmful substance can be adsorbed or neutralized.

Referring to fig. 1 and 2, in some possible embodiments, the purifier 31 further includes a bio-packing section 313 connected between the washing packing section 312 and the third gas outlet 314. The biological filler section 313 can decompose and purify toxic and harmful substances in the asphalt flue gas through microorganisms, and the purified asphalt flue gas is discharged through the third gas outlet 314. The adoption of the biological purification method can solve the problems of flammability and explosiveness of the asphalt flue gas in the treatment process, and improve the safety of the treatment technology.

Referring to fig. 1 and 2, in some possible embodiments, the purifier 31 has a purifying chamber, a partition 315 is disposed in the purifying chamber, the partition 315 partitions the purifying chamber to form a washing filler section 312 and a biological filler section 313, and the partition 315 and an inner wall of the purifying chamber enclose to form a middle channel 316 communicating the washing filler section 312 and the biological filler section 313.

Referring to fig. 1 and 2, arrows indicate the flowing direction of the gas, in this embodiment, the washing filler section 312 is communicated with the third gas inlet 311 to form a gas channel from top to bottom, and the biological filler section is communicated with the third gas outlet 314 to form a gas channel from bottom to top. The partition 315 encloses with the inner wall of the decontamination chamber to form an intermediate channel 316, the intermediate channel 316 being arranged in a horizontal direction to enable gas to flow from the scrubbing packing section 312 to the bio-packing section 313.

In the embodiment, the washing and filling material section 312 and the biological filling material section 313 are separated by the partition 315, so that the washing and filling material section 312 and the biological filling material section 313 are in relatively independent spaces, and the mutual influence between the washing and filling material section 312 and the biological filling material section 313 can be avoided. When in use, the asphalt flue gas passes through the third air inlet 311, the washing filler section 312, the middle channel 316 and the biological filler section 313 in sequence and is discharged from the third air outlet 314.

It is to be understood that, the parts in the foregoing embodiments may be freely combined or deleted to form different combination embodiments, and specific contents of each combination embodiment are not described herein again, and after this description, it may be considered that the present disclosure has described each combination embodiment, and can support different combination embodiments.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. Asphalt gas cleaning device, its characterized in that is including setting gradually:

the dust collecting unit comprises a collecting box body and a dust feeder, wherein the collecting box body is provided with a first air inlet, a collecting cavity and a first air outlet which are arranged in a connected mode, the collecting box body is provided with a feed opening communicated with the collecting cavity, and the dust feeder is used for adding dust into the collecting cavity through the feed opening;

the dust removal unit comprises a dust remover, the dust remover is provided with a second air inlet, a dust removal cavity and a second air outlet which are connected, and the second air inlet is communicated with the first air outlet; and

and the washing and purifying unit comprises a purifier, the purifier is provided with a third air inlet, a washing filler section and a third air outlet which are connected, and the third air inlet is communicated with the second air outlet.

2. The asphalt flue gas purification device according to claim 1, wherein the capture chamber comprises a first chamber, a second chamber and a third chamber which are successively arranged in an adjoining manner along a direction from the first gas inlet to the first gas outlet;

one end, far away from the second chamber, of the first chamber is communicated with the first air inlet, one end, far away from the second chamber, of the third chamber is communicated with the first air outlet, the cross-sectional area of the first chamber is gradually increased along the direction from the first air inlet to the second chamber, and the cross-sectional area of the third chamber is gradually decreased along the direction from the second chamber to the first air outlet.

3. The asphalt flue gas purification device according to claim 1, wherein the bottom of the capture box further comprises a dust collection chamber connected with the capture chamber.

4. The asphalt flue gas purification device according to claim 3, wherein a dust cleaning pipeline communicated with the dust collection cavity is arranged at the bottom of the collection box body, and a dust discharging valve is arranged on the dust cleaning pipeline.

5. The asphalt flue gas cleaning device according to claim 1, wherein the dust feeder comprises:

one end of the feeding pipeline is communicated with the feeding port;

the storage bin is communicated with the other end of the feeding pipeline; and

and the vibrating motor is arranged on the feeding pipeline and used for providing the reciprocating exciting force along the direction from the storage bin to the feeding opening.

6. The asphalt flue gas purification device according to claim 5, wherein one end of the feeding pipe, which is adjacent to the feeding port, is provided with a plurality of sieve holes facing the feeding port, the dust feeder further comprises a protection pipe, one end of the protection pipe is connected with the feeding pipe and covers the coverage area of the sieve holes, and the other end of the protection pipe is communicated with the feeding port.

7. The asphalt flue gas purification device according to claim 1, wherein the dust remover is a bag-type dust remover, and a dust removing cavity of the bag-type dust remover is provided with a plurality of dust removing filter bags.

8. The asphalt flue gas cleaning device according to claim 1, wherein the scrubbing filler section comprises:

the first packing layers are arranged in the shell of the purifier and are arranged at intervals; and

and the plurality of spray pipes are arranged above the corresponding packing layers.

9. The asphalt flue gas cleaning device according to claim 1, wherein the scrubber further comprises a bio-packing section connected between the scrubbing packing section and the third gas outlet.

10. The asphalt flue gas purification device according to claim 9, wherein the purifier has a purification chamber, a partition is disposed in the purification chamber, the partition separates the purification chamber into the scrubbing and filling section and the biological filling section, and the partition and the inner wall of the purification chamber enclose a middle passage communicating the scrubbing and filling section and the biological filling section.