CN112138507A - Comprehensive treatment device for asphalt waste gas - Google Patents
Comprehensive treatment device for asphalt waste gas Download PDFInfo
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- CN112138507A CN112138507A CN202011136947.7A CN202011136947A CN112138507A CN 112138507 A CN112138507 A CN 112138507A CN 202011136947 A CN202011136947 A CN 202011136947A CN 112138507 A CN112138507 A CN 112138507A
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- 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
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- 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
- B01D53/002—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 condensation
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- 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
- B01D53/14—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 absorption
- B01D53/1406—Multiple stage absorption
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- 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
- B01D53/14—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 absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- 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
- B01D53/14—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 absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
- B01D53/185—Liquid distributors
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- 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
- B01D53/26—Drying gases or vapours
- B01D53/266—Drying gases or vapours by filtration
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- 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
- B01D53/32—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 electrical effects other than those provided for in group B01D61/00
- B01D53/323—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 electrical effects other than those provided for in group B01D61/00 by electrostatic effects or by high-voltage electric fields
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- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/44—Organic components
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- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/104—Ozone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/90—Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
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- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses an asphalt waste gas comprehensive treatment device, which comprises: the device comprises a solvent surge flow scrubber, a waste gas condensation collector, a neutralization scrubber, a plasma treatment component and an activated carbon adsorption tower, wherein a gas outlet of the solvent surge flow scrubber is connected with a gas inlet of the waste gas condensation collector through a first pipeline, a gas outlet of the waste gas condensation collector is connected with a gas inlet of the neutralization scrubber through a second pipeline, and the plasma treatment component is connected between the neutralization scrubber and the activated carbon adsorption tower in series. Through the mode, according to the comprehensive asphalt waste gas treatment device, asphalt waste gas is treated by the solvent surge flow washer, the waste gas condensation collector, the neutralization washer and the plasma treatment assembly in sequence, the content of organic waste gas is very low, and finally the asphalt waste gas is adsorbed by activated carbon in the activated carbon adsorption tower, so that the workload of the activated carbon is reduced, the service cycle of the activated carbon is prolonged, and the waste gas is ensured to reach the emission standard.
Description
Technical Field
The invention relates to the field of mechanical equipment, in particular to an asphalt waste gas comprehensive treatment device.
Background
In the production process of the asphalt material, a large amount of asphalt waste gas is generated, and in order to protect the environment and ensure the occupational health of staff of production enterprises and the health of surrounding residents, the organic waste gas generated in the production line of asphalt products needs to be treated.
The existing waste gas treatment equipment usually adopts activated carbon to treat a certain problem in waste gas, is difficult to eliminate organic matters and peculiar smell in the gas, has large consumption of the activated carbon, short service cycle, needs frequent replacement and maintenance of the activated carbon and is easy to generate secondary pollution.
Disclosure of Invention
The invention mainly solves the technical problem of providing the comprehensive treatment device for the asphalt waste gas, which is used for comprehensively treating the waste gas, improving the treatment effect and prolonging the service cycle of the activated carbon.
In order to solve the technical problems, the invention adopts a technical scheme that: provided is an integrated treatment device for asphalt waste gas, comprising: the device comprises a solvent surge flow scrubber, a waste gas condensation collector, a neutralization scrubber, a plasma treatment component and an activated carbon adsorption tower, wherein a gas outlet of the solvent surge flow scrubber is connected with a gas inlet of the waste gas condensation collector through a first pipeline, a gas outlet of the waste gas condensation collector is connected with a gas inlet of the neutralization scrubber through a second pipeline, and the plasma treatment component is connected between the neutralization scrubber and the activated carbon adsorption tower in series.
In a preferred embodiment of the invention, the gas-liquid separation device further comprises a gas-liquid separation tank and a gas flow dryer, wherein the gas outlet of the neutralization scrubber is connected with the gas inlet of the gas-liquid separation tank through a third pipeline, and the gas outlet of the gas-liquid separation tank is connected with the gas inlet of the gas flow dryer through a fourth pipeline.
In a preferred embodiment of the invention, the plasma processing assembly comprises a plasma collector and a low-temperature high-pressure plasma deodorizer, the air outlet of the airflow dryer is connected with the air inlet of the plasma collector through a fifth pipeline, the air outlet of the plasma collector is connected with the air inlet of the low-temperature high-pressure plasma deodorizer through a sixth pipeline, and the air outlet of the low-temperature high-pressure plasma deodorizer is connected with the air inlet of the activated carbon adsorption tower through a seventh pipeline.
In a preferred embodiment of the invention, the air inlet of the solvent surge scrubber is provided with a first fan.
In a preferred embodiment of the present invention, a second fan is disposed in series on the third pipeline.
In a preferred embodiment of the present invention, the pneumatic dryer is filled with a flocculent filter filling.
In a preferred embodiment of the invention, the solvent surge scrubber is provided with upwardly directed nozzles for washing liquid, and the neutralization scrubber is provided with a layer of packing and atomizing means.
In a preferred embodiment of the present invention, the exhaust gas condensation collector is provided with a finned condensation pipe.
In a preferred embodiment of the present invention, the plasma collector is provided with positive and negative electrode plates and an oil collecting tray located below the positive and negative electrode plates.
The invention has the beneficial effects that: according to the comprehensive treatment device for the asphalt waste gas, the asphalt waste gas is sequentially treated by the solvent surge flow washer, the waste gas condensation collector, the neutralization washer and the plasma treatment assembly, the content of organic waste gas is very low, and finally the activated carbon in the activated carbon adsorption tower is used for adsorption, so that the workload of the activated carbon is reduced, the service cycle of the activated carbon is prolonged, and the waste gas is ensured to reach the emission standard.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic structural diagram of an integrated asphalt waste gas treatment apparatus according to a preferred embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention includes:
the comprehensive asphalt waste gas treatment device shown in fig. 1 comprises: a solvent surge flow scrubber 1, a waste gas condensation collector 2, a neutralization scrubber 3, a gas-liquid separation tank 4, a gas flow dryer 5, a plasma treatment component and an activated carbon adsorption tower 8, wherein in the embodiment, a first fan 9 is arranged at the gas inlet of the solvent surge flow scrubber 1, the asphalt waste gas is sent into the solvent surge flow scrubber 1, a washing liquid nozzle pointing upwards is arranged in the solvent surge flow scrubber 1, the asphalt waste gas enters a washing pipe in the solvent surge flow scrubber 1 from top to bottom at a high speed, the washing liquid is sprayed into the gas flow from the washing liquid nozzle to top through a circulating pump, so that two gas phases and liquid phases are in surge flow contact at a high speed, the contact surface area is large, the contact surfaces are continuously and rapidly updated, the effects of high-efficiency heat transfer and mass transfer are achieved, and in addition, according to the characteristic of gas-liquid cocurrent flow below a foam area in the solvent surge flow scrubber 1, by using the static mixing element, the gas phase and the liquid phase are mixed in a surge flow mode again, the effect of forward flow washing is achieved, and the two-stage series washing effect is achieved.
The gas outlet of the solvent surge flow scrubber 1 is connected with the gas inlet of the waste gas condensation collector 2 through a first pipeline 11, and the waste gas is guided into the waste gas condensation collector 2, in the embodiment, a finned condenser pipe is arranged in the waste gas condensation collector 2, and cooling water circulates in the finned condenser pipe, so that the temperature is reduced, the waste gas enters the surface of the finned condenser pipe cooled by the waste gas condensation collector 2, the temperature of the waste gas is lower than the dew point temperature of organic matters and tar therein, the organic matters are condensed into liquid drops and then separated from the waste gas, and the liquid drops are collected at the lower part of the shell of the waste gas condensation collector 2 and flow out separately, so that the purposes of purification and recovery are achieved.
The outlet of the waste gas condensing collector 2 is connected with the inlet of the neutralization scrubber 3 by a second pipe 12, and then the waste gas is guided into the neutralization scrubber 3, in this embodiment, the neutralization scrubber 3 is provided with a packing layer and an atomizing device, the waste gas enters the neutralization scrubber 3 from the lower part, and then the waste gas is purified by the packing layer and the atomizing device.
In this embodiment, the gas outlet of the neutralization scrubber 3 is connected with the gas inlet of the gas-liquid separation tank 4 by a third pipeline 13, the third pipeline 13 is connected in series with a second fan 10 for pressurizing, and the purified gas passes through the gas-liquid separation tank 4, after the water vapor and moisture in the gas are reduced, the gas enters the subsequent treatment process. Gas outlet and air flow dryer 5's air inlet of gas-liquid separation jar 4 is provided with fourth pipeline 14 and is connected, and it has cotton flocculent filter filler to fill in the air flow dryer 5, still contains the aerogel of a certain amount in the gas after the washing, and gaseous entering air flow dryer 5 is back, filters the aerogel composition of filler with gaseous and a small amount of moisture through cotton flocculent, guarantees gaseous cleanliness factor, prevents that other impurities such as aerogel from influencing subsequent plasma treatment subassembly.
In this embodiment, the plasma processing assembly comprises a plasma collector 6 and a low-temperature high-pressure plasma deodorizer 7, the air outlet of the airflow dryer 5 is connected with the air inlet of the plasma collector 6 by a fifth pipeline 15, and in this embodiment, the plasma collector 6 is provided with positive and negative plates and an oil collecting tray below the positive and negative plates. The waste gas is sucked into the plasma collector 6, wherein part of bigger fog drops and oil stains are captured on a flow equalizing plate in the plasma collector 6 due to mechanical collision and retention, when the air flow enters a plasma electric field of positive and negative plates, the waste gas is ionized under the action of the electric field, the oil mist is charged to degrade and carbonize most of the waste gas, a small part of tiny oil particles move to the positive and negative plates of the electric field under the action of the electric field force of the adsorption electric field and the air flow and are collected on the plates and flow to an oil collecting tray under the action of self gravity and are discharged through an oil discharge port, the rest micron-sized waste gas is degraded into carbon dioxide and water by the electric field, and finally clean air is discharged, and simultaneously, ozone is generated in the air of the electric field under the action of a high-voltage generator, so that most of smell in the smoke.
In this embodiment, the gas outlet of the plasma collector 6 is connected to the gas inlet of the low-temperature high-pressure plasma deodorizer 7 by a sixth pipe 16, the plasma collector 6 decomposes the exhaust gas components by using high-energy electrons and ions generated during high-pressure discharge, and the high-energy electrons decompose oxygen molecules into two oxygen atoms and combine with oxygen molecules to form ozone again, the ozone is a strong oxidant and can decompose and oxidize organic matters, and the water molecules are bombarded and decomposed into hydroxyl radicals and also a strong oxidant and can also oxidize organic matters.
The waste gas makes peculiar smell molecules excited under the action of high-energy electrons, charged particles or chemical bonds among the molecules are broken, meanwhile, water and oxygen in the waste gas can also generate strong oxidizing substances such as OH free radicals, active oxygen and the like under the bombardment of the high-energy electrons, and the strong oxidizing substances react with the peculiar smell molecules to decompose the peculiar smell molecules.
The air outlet of the low-temperature high-pressure plasma deodorizer 7 is connected with the air inlet of the activated carbon adsorption tower 8 through a seventh pipeline 17, and finally, residual organic matters are adsorbed by activated carbon particles in the activated carbon adsorption tower 8, so that the emission is ensured to reach the standard.
In conclusion, the comprehensive treatment device for the asphalt waste gas realizes comprehensive treatment of the asphalt waste gas, realizes safe discharge, is beneficial to reducing the working pressure of the activated carbon particles, prolongs the service cycle of the activated carbon particles and reduces the maintenance frequency.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, or direct or indirect applications in other related fields, which are made by the contents of the present specification, are included in the scope of the present invention.
Claims (9)
1. The utility model provides an asphalt waste gas integrated processing device which characterized in that includes: the device comprises a solvent surge flow scrubber, a waste gas condensation collector, a neutralization scrubber, a plasma treatment component and an activated carbon adsorption tower, wherein a gas outlet of the solvent surge flow scrubber is connected with a gas inlet of the waste gas condensation collector through a first pipeline, a gas outlet of the waste gas condensation collector is connected with a gas inlet of the neutralization scrubber through a second pipeline, and the plasma treatment component is connected between the neutralization scrubber and the activated carbon adsorption tower in series.
2. The comprehensive asphalt waste gas treatment device according to claim 1, further comprising a gas-liquid separation tank and a gas flow dryer, wherein the gas outlet of the neutralization scrubber is connected with the gas inlet of the gas-liquid separation tank through a third pipeline, and the gas outlet of the gas-liquid separation tank is connected with the gas inlet of the gas flow dryer through a fourth pipeline.
3. The comprehensive asphalt waste gas treatment device according to claim 2, wherein the plasma treatment component comprises a plasma collector and a low-temperature high-pressure plasma deodorizer, the gas outlet of the gas flow dryer is connected with the gas inlet of the plasma collector through a fifth pipeline, the gas outlet of the plasma collector is connected with the gas inlet of the low-temperature high-pressure plasma deodorizer through a sixth pipeline, and the gas outlet of the low-temperature high-pressure plasma deodorizer is connected with the gas inlet of the activated carbon adsorption tower through a seventh pipeline.
4. The integrated asphalt waste gas treatment device according to claim 1, wherein the air inlet of the solvent surge scrubber is provided with a first fan.
5. The comprehensive asphalt waste gas treatment device according to claim 2, wherein a second fan is arranged on the third pipeline in series.
6. The integrated asphalt waste gas treatment device according to claim 2, wherein the pneumatic dryer is filled with a flocculent filter filler.
7. The integrated asphalt waste gas treatment device according to claim 1, wherein the solvent surge scrubber is provided with a washing liquid nozzle pointing upwards, and the neutralization scrubber is provided with a filler layer and an atomization device.
8. The integrated asphalt waste gas treatment device according to claim 1, wherein a finned condenser tube is arranged in the waste gas condensation collector.
9. The comprehensive asphalt waste gas treatment device according to claim 3, wherein the plasma collector is provided with positive and negative electrode plates and an oil collecting tray positioned below the positive and negative electrode plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011136947.7A CN112138507A (en) | 2020-10-22 | 2020-10-22 | Comprehensive treatment device for asphalt waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011136947.7A CN112138507A (en) | 2020-10-22 | 2020-10-22 | Comprehensive treatment device for asphalt waste gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112138507A true CN112138507A (en) | 2020-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011136947.7A Pending CN112138507A (en) | 2020-10-22 | 2020-10-22 | Comprehensive treatment device for asphalt waste gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112138507A (en) |
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2020
- 2020-10-22 CN CN202011136947.7A patent/CN112138507A/en active Pending
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