CN107837619B - Environment-friendly asphalt smoke adsorption treatment device and method - Google Patents
Environment-friendly asphalt smoke adsorption treatment device and method Download PDFInfo
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- CN107837619B CN107837619B CN201711396462.XA CN201711396462A CN107837619B CN 107837619 B CN107837619 B CN 107837619B CN 201711396462 A CN201711396462 A CN 201711396462A CN 107837619 B CN107837619 B CN 107837619B
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- 239000010426 asphalt Substances 0.000 title claims abstract description 58
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 40
- 239000000779 smoke Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 153
- 239000004744 fabric Substances 0.000 claims abstract description 58
- 238000009835 boiling Methods 0.000 claims abstract description 17
- 235000019504 cigarettes Nutrition 0.000 claims abstract description 8
- 238000009423 ventilation Methods 0.000 claims description 24
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 18
- 239000003546 flue gas Substances 0.000 claims description 18
- 238000007664 blowing Methods 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 8
- 239000011345 viscous material Substances 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 230000000704 physical effect Effects 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 claims 2
- 239000010410 layer Substances 0.000 abstract description 44
- 239000003517 fume Substances 0.000 abstract description 12
- 238000010521 absorption reaction Methods 0.000 abstract description 6
- 239000002912 waste gas Substances 0.000 abstract description 3
- 239000011241 protective layer Substances 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 12
- 239000003463 adsorbent Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000002956 ash Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000010881 fly ash Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 239000011164 primary particle Substances 0.000 description 2
- 239000011163 secondary particle Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- -1 steam Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0012—In-line filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
- B01D46/32—Particle separators, e.g. dust precipitators, using loose filtering material the material moving during filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention relates to the technical field of waste gas treatment, in particular to an environment-friendly asphalt smoke adsorption treatment device and method. The device includes the box, the box is equipped with air intake and air outlet, its characterized in that: the box is equipped with powder bed, sack filter layer in proper order from the air intake to the air outlet, and the powder bed includes porous ventilative board, locates the powder of porous ventilative board top surface, carries out the first absorption when the powder behind the porous ventilative board of pitch cigarette, and the powder forms one deck powder protective layer on the sack filter layer, carries out the second absorption when pitch cigarette passes the sack filter layer. The contact area of the powder in a boiling state with the asphalt fume is larger, and the powder adsorption efficiency is higher; the powder protection layer on the filter cloth bag is uniform and compact and has high replacement speed; the powder is reused without secondary pollution.
Description
Technical Field
The invention relates to the technical field of waste gas treatment, in particular to an environment-friendly asphalt smoke adsorption treatment device and method.
Background
Asphalt, heavy oil, stone and the like in the asphalt stirring equipment volatilize smoke, steam, dust and other polluted waste gas in production, the asphalt stirring equipment is generally treated by cloth bag dust removing equipment in engineering and is discharged, the cloth bag is stuck with a bag when the asphalt smoke is high in viscosity and passes through the cloth bag of the cloth bag dust removing equipment, the effective filtering area of the cloth bag is reduced, the local airflow flow speed of the cloth bag is accelerated due to the reduction of the effective filtering area, the abrasion of the cloth bag is accelerated, the service life of the cloth bag is prolonged, the equipment is invalid if the cloth bag is damaged, the discharge is not up to standard, and the environment is polluted.
In order to solve the above problems, chinese patent with the grant publication number CN 100441270C discloses a method and device for purifying the adhesive smoke inhalable particulate, which mainly comprises the following steps: firstly, spraying an adsorbent into a bag type dust collector in advance before a boiler or a burner operates, so that a layer of adsorbent is attached to the surface of a filter material layer of the bag type dust collector to form a remover layer; secondly, the adhesive flue gas from the combustion equipment is premixed with the adsorbent sprayed by the soot blowing valve when passing through the flue inlet section of the bag type dust collector, then is mixed with the iron fly ash input by the iron fly ash feeder, and enters the bag type dust collector after preliminary collision, adsorption, agglomeration and a series of physicochemical reactions are carried out; thirdly, continuously reacting a remover layer formed on the filter material layer of the bag type dust collector with precursors of primary particles and secondary particles which are not removed in the flue gas, so that the precursors of the primary particles and the secondary particles are further removed; fourthly, ash removal control is carried out on the bag type dust collector, so that the adsorbent powder attached to the filter material layer is removed to an ash bin at the lower part of the bag type dust collector, and returns to the circulating powder bin under the transmission action of an ash conveying fan, and purified flue gas is discharged into the atmosphere through a flue outlet of the bag type dust collector. The existing device needs to spray an adsorbent on the surface of a filter material layer in advance for treating the adhesive gas, and the used adsorbent needs to be removed to clean the filter material layer after a period of working in order to ensure the passing rate of the flue gas; the filter material layer loses protection after the adsorbent is removed, if a uniform adsorbent protection layer is formed on the filter material layer, the adsorbent needs to be sprayed again, at the moment, the equipment needs to be stopped, the operation is complex, and continuous production is difficult to achieve.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides an environment-friendly asphalt smoke adsorption treatment device and method.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the utility model provides an environment-friendly asphalt cigarette adsorbs processing apparatus, includes the box, the box is equipped with air intake and air outlet, its characterized in that: the box is equipped with powder bed, sack filter layer in proper order from the air intake to the air outlet, the powder bed includes porous ventilative board, locates the powder of porous ventilative board top surface, carries out the first absorption to the pitch cigarette when the powder behind the pitch cigarette passed porous ventilative board, and the powder flies upward to the sack filter layer under the impact of pitch cigarette and forms one deck powder protective layer, carries out the secondary when pitch cigarette passes the sack filter layer and adsorbs and carry out the particulate matter filtration, and the flue gas after the processing is accomplished is sent out by the air outlet.
Further, the box body is also provided with a powder inlet for adding powder to the top surface of the porous ventilation plate and a powder outlet for delivering the powder on the porous ventilation plate.
Further, the bottom of the box body is provided with a circulating powder port, the circulating powder port is connected with a powder inlet through a screw conveyer, and powder falling from the top surface of the porous air-permeable plate enters the circulating powder port and is returned to the powder inlet through the screw conveyer so as to realize the internal circulation of the powder in the box body.
Further, a buffer flow distribution area is further arranged between the air inlet and the powder layer, the buffer flow distribution area is narrow at the lower part and wide at the upper part, the air inlet is arranged at the lower part of the buffer flow distribution area, and asphalt smoke entering from the air inlet uniformly passes through the porous ventilation plate.
Further, the cloth bag filter layer comprises a plurality of filter cloth bags, each filter cloth bag is respectively provided with a pulse valve and a back blowing mechanism, and the back blowing mechanism reversely blows air into the filter cloth bags through the pulse valves to shake off powder and particles on the cloth bags.
Further, an induced draft fan for providing negative pressure for the box body is arranged at the air outlet, and the induced draft fan leads the treated flue gas to the burner to burn the flue gas, so that pollution-free emission is achieved.
An environment-friendly asphalt smoke adsorption treatment method is characterized by comprising the following steps of: the environment-friendly asphalt smoke adsorption device comprises the following steps:
Step one, asphalt fume enters a box body from an air inlet, passes through a porous ventilation plate from bottom to top to contact with powder, and the powder adsorbs viscous substances, moisture and corrosive liquid in the asphalt fume through physical properties to complete first-stage adsorption, meanwhile, the powder is in a boiling state under the action of air flow, the contact between the powder in the boiling state and the asphalt fume is more sufficient, and the adsorption rate of the first-stage adsorption is improved;
Step two, the powder in the boiling state flies on the filter cloth bag to form a uniform powder protection layer, asphalt flue gas enters the filter cloth bag after passing through the powder protection layer, the viscous substances, moisture and corrosive liquid finish the second-stage adsorption on the powder protection layer, the filter cloth bag is ensured not to be stuck with the bag, the particulate substances are intercepted in the filter cloth bag, and the treated gas is discharged from an air outlet;
Further, after a period of treatment, the powder protection layer on the outer surface of the filter cloth bag is adsorbed with more viscous substances, and the filter cloth bag needs to be replaced to ensure the adsorption effect, and the back-blowing mechanism reversely inflates the filter cloth bag to shake off the covered powder protection layer, and meanwhile, as the powder is still in a boiling state, a new powder protection layer is formed on the filter cloth bag immediately.
Further, the powder on the top surface of the porous ventilation plate falls from the holes and then enters the circulating powder port, and the spiral conveyor conveys the powder on the circulating powder port to the powder inlet and returns to the top surface of the ventilation plate for recycling.
Further, when the powder reaches the adsorption saturation state, the powder is led to asphalt mixing stirring equipment through a powder outlet to be used as a raw material, new powder is added from a powder inlet, and gas discharged from an air outlet is led into a combustor to burn smoke, so that pollution-free emission is achieved.
As can be seen from the description of the invention, compared with the prior art, the environment-friendly asphalt fume adsorption treatment device and method provided by the invention have the advantages that the powder is in a boiling state under the air flow, so that the contact area between the powder and asphalt fume is larger, and the powder adsorption efficiency is higher; after the powder protection layer on the filter cloth bag is reversely blown and shaken off, as the powder is continuously in a boiling state, a new uniform and compact powder protection layer can be formed on the filter cloth bag immediately, and continuous and efficient operation of equipment is ensured; the powder after the adsorption is sent to asphalt mixing stirring equipment to be used as raw materials, and secondary pollution is not generated.
Drawings
FIG. 1 is a schematic diagram of an environment-friendly asphalt smoke adsorption treatment device.
Fig. 2 is a schematic structural view of the usage state of the environment-friendly asphalt smoke adsorption treatment device.
Detailed Description
The invention is further described below by means of specific embodiments.
Referring to fig. 1 to 2, an environment-friendly asphalt smoke adsorption treatment device comprises a box body 1, wherein the box body 1 is provided with an air inlet 11 and an air outlet 12, and a buffer diversion area 2, a powder layer 3 and a cloth bag filter layer 4 are sequentially arranged between the air inlet 11 and the air outlet 12 of the box body 1.
The powder layer 3 comprises a porous ventilation plate 31 and powder 32 arranged on the top surface of the porous ventilation plate 31, asphalt smoke is adsorbed for the first time when passing through the powder 32 after passing through the porous ventilation plate 31, the powder 32 flies to the cloth bag filter layer 4 under the impact of the asphalt smoke to form a powder protection layer, the asphalt smoke is adsorbed for the second time and filtered by particles when passing through the cloth bag filter layer 4, and the treated smoke is sent out from the air outlet 12.
The box 1 is also provided with a powder inlet 13 for adding powder to the top surface of the porous air-permeable plate 31, a powder outlet 14 for delivering the powder on the porous air-permeable plate 31, and a circulating powder port 15 arranged at the bottom, wherein the circulating powder port 15 is connected with the powder inlet 13 through a screw conveyer, the powder dropped from the top surface of the porous air-permeable plate 31 enters the circulating powder port 15 and is delivered back to the powder inlet 13 through the screw conveyer to realize the internal circulation of the powder in the box 1, and the saturated powder is delivered from the powder outlet 14 and led to asphalt mixing stirring equipment to use the powder as a production raw material.
The buffer diversion area 2 is narrow at the bottom and wide at the top, the air inlet 11 is arranged at the lower part of the buffer diversion area 2, and the buffer diversion area 2 enables asphalt smoke entering from the air inlet 11 to uniformly pass through the porous ventilation plate 31.
The cloth bag filter layer 4 comprises a plurality of filter cloth bags 41, each filter cloth bag is respectively provided with a pulse valve 42 and a back blowing mechanism, and the back blowing mechanism reversely blows air into the filter cloth bags 41 through the pulse valves 42 to shake off powder and particles on the cloth bags.
The induced draft fan 121 for providing negative pressure for the box body 1 is arranged at the air outlet 12, the flue gas at the air outlet 12 is treated flue gas, the viscosity and the dust content are low, the working environment of the induced draft fan 121 is better, the service life is long, the induced draft fan 121 leads the treated flue gas to a burner, and the flue gas is burnt, so that no pollution emission is achieved.
The environment-friendly asphalt smoke adsorption treatment method comprises the following steps of using the environment-friendly asphalt smoke adsorption device:
firstly, an induced draft fan 121 works to form negative pressure in a box body 1, asphalt fume enters the box body 1 from an air inlet 11 and is dispersed in a buffer diversion area 2, so that the asphalt fume can uniformly pass through a porous ventilation plate 31 from bottom to top to contact with powder 32, the powder 32 absorbs viscous substances, moisture and corrosive liquid in the asphalt fume through physical properties to complete first-stage absorption, meanwhile, the powder 32 is in a boiling state under the action of air flow, the contact between the powder 32 in the boiling state and the asphalt fume is more sufficient, and the absorption rate of the first-stage absorption is improved;
Step two, the powder 32 in the boiling state flies on the filter cloth bag 41 to form a uniform powder protection layer, asphalt flue gas enters the filter cloth bag 41 after passing through the powder protection layer, the sticky substances, moisture and corrosive liquid are adsorbed on the powder protection layer for the second stage, the filter cloth bag 41 is ensured not to be stuck with a bag, the particulate substances are intercepted in the filter cloth bag 41, and the treated gas is discharged from the air outlet 12 and is introduced into a combustor for burning the flue gas, so that pollution-free emission is achieved;
Step three, after a period of treatment, the powder protection layer on the outer side of the filter cloth bag 41 is adsorbed with more viscous substances, and the powder protection layer needs to be replaced in order to ensure the adsorption effect, and the back-blowing mechanism reversely inflates the filter cloth bag 41 to shake off the covered powder protection layer, and meanwhile, as the powder 3 is still in a boiling state, a new powder protection layer is formed on the filter cloth bag 41 immediately;
Step four, the powder on the top surface of the porous ventilation plate 31 is inevitably dropped from the holes, the buffer diversion area 2 at the bottom of the box body 1 is narrow and wide, the dropped powder 3 is gathered at the circulating powder port 15 at the bottom, and the powder 3 at the circulating powder port 15 is sent to the powder inlet 13 through the screw conveyor to return to the top surface of the porous ventilation plate 31 for recycling;
And fifthly, after a period of time of operation, when the powder 3 on the top surface of the porous ventilation plate 31 reaches an adsorption saturation state, the powder 3 is led to asphalt mixing and stirring equipment through a powder outlet 14 to be used as a raw material, and new powder is added from a powder inlet 13.
Referring to fig. 1 to 2, the above-mentioned environment-friendly asphalt fume adsorption treatment device and method, the powder is in boiling state under the air flow, so that the contact area between the powder and asphalt fume is larger, and the powder adsorption efficiency is higher; after the powder protection layer on the filter cloth bag is reversely blown and shaken off, as the powder is continuously in a boiling state, a new uniform and compact powder protection layer can be formed on the filter cloth bag immediately, and continuous and efficient operation of equipment is ensured; the powder after the adsorption is sent to asphalt mixing stirring equipment to be used as raw materials, and secondary pollution is not generated.
The foregoing is merely one specific embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modification of the present invention by using the concept shall belong to the behavior of infringement of the protection scope of the present invention.
Claims (7)
1. The utility model provides an environment-friendly asphalt cigarette adsorbs processing apparatus, includes the box, the box is equipped with air intake and air outlet, its characterized in that: the box body is sequentially provided with a powder layer and a cloth bag filter layer from an air inlet to an air outlet, the powder layer comprises a porous ventilation plate and powder arranged on the top surface of the porous ventilation plate, asphalt smoke is adsorbed for the first time when passing through the powder after passing through the porous ventilation plate, the powder flies to the cloth bag filter layer to form a powder protection layer under the impact of the asphalt smoke, the asphalt smoke is adsorbed for the second time and filtered by particles when passing through the cloth bag filter layer, the treated flue gas is sent out from the air outlet, the box body is also provided with a powder inlet for adding the powder to the top surface of the porous ventilation plate and a powder outlet for sending the powder on the porous ventilation plate, the bottom of the box body is provided with a circulating powder port, the circulating powder port is connected with the powder inlet through a screw conveyor, and the powder dropped from the top surface of the porous ventilation plate enters the circulating powder port and is sent back to the powder inlet through the screw conveyor to realize the internal circulation of the powder in the box body; the cloth bag filter layer comprises a plurality of filter cloth bags, each filter cloth bag is respectively provided with a pulse valve and a back-blowing mechanism, and the back-blowing mechanism reversely blows air into the filter cloth bags through the pulse valves to shake off powder and particles on the cloth bags.
2. The environment-friendly asphalt smoke adsorption treatment device according to claim 1, wherein: the air inlet is arranged at the lower part of the buffering and distributing area, and the buffering and distributing area enables asphalt smoke entering from the air inlet to uniformly pass through the porous ventilation plate.
3. The environment-friendly asphalt smoke adsorption treatment device according to claim 1, wherein: the air outlet is provided with an induced draft fan for providing negative pressure for the box body, and the induced draft fan leads the treated flue gas to the burner to burn the flue gas, so that pollution-free emission is achieved.
4. An environment-friendly asphalt smoke adsorption treatment method is characterized by comprising the following steps of: an environment-friendly asphalt smoke adsorption treatment device according to any one of claims 1-3, which comprises the following steps:
Step one, asphalt smoke enters a box body from an air inlet, passes through a porous ventilation plate from bottom to top to contact with powder, and the powder adsorbs viscous substances, moisture and corrosive liquid in the asphalt smoke through physical properties to complete first-stage adsorption, meanwhile, the powder is in a boiling state under the action of air flow, the contact between the powder in the boiling state and the asphalt smoke is more sufficient, and the adsorption rate of the first-stage adsorption is improved;
and secondly, the powder in the boiling state flies on the filter cloth bag to form a uniform powder protection layer, asphalt flue gas enters the filter cloth bag after passing through the powder protection layer, the viscous substances, moisture and corrosive liquid are adsorbed on the powder protection layer for the second stage, the filter cloth bag is ensured not to be stuck with the powder, the particulate substances are intercepted in the filter cloth bag, and the treated gas is discharged from an air outlet.
5. The environment-friendly asphalt smoke adsorption treatment method according to claim 4, which is characterized in that: after a period of treatment, the powder protection layer on the outer surface of the filter cloth bag is adsorbed with more viscous substances, and the filter cloth bag needs to be replaced to ensure the adsorption effect, and the back-blowing mechanism reversely inflates the filter cloth bag to shake off the covered powder protection layer, and meanwhile, as the powder is still in a boiling state, a new powder protection layer is formed on the filter cloth bag immediately.
6. The environment-friendly asphalt smoke adsorption treatment method according to claim 4, which is characterized in that: the powder on the top surface of the porous ventilation plate falls from the holes and then enters the circulating powder port, and the spiral conveyor conveys the powder on the circulating powder port to the powder inlet and returns to the top surface of the ventilation plate for recycling.
7. The environment-friendly asphalt smoke adsorption treatment method according to claim 4, which is characterized in that: when the powder reaches the adsorption saturation state, the powder is led to asphalt mixing stirring equipment through a powder outlet to be used as a raw material, new powder is added from a powder inlet, and gas discharged from an air outlet is led into a combustor to burn smoke, so that pollution-free emission is achieved.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711396462.XA CN107837619B (en) | 2017-12-21 | 2017-12-21 | Environment-friendly asphalt smoke adsorption treatment device and method |
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| CN201711396462.XA CN107837619B (en) | 2017-12-21 | 2017-12-21 | Environment-friendly asphalt smoke adsorption treatment device and method |
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| CN107837619B true CN107837619B (en) | 2024-04-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108411738B (en) * | 2018-05-23 | 2020-06-30 | 福建省铁拓机械股份有限公司 | Plant-mixed hot recycling method capable of realizing RAP full recycling |
| CN110755971A (en) * | 2018-07-25 | 2020-02-07 | 曲靖市首锋矿山配件有限公司 | Steel rolling production tail gas treatment system |
| CN110042729B (en) * | 2019-05-20 | 2024-02-06 | 江苏徐工工程机械研究院有限公司 | Asphalt mixing system and asphalt smoke purifying method |
| CN112870904A (en) * | 2021-03-30 | 2021-06-01 | 东莞汇乐环保股份有限公司 | Powder spraying and dust removing integrated machine |
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