CN108404630A - Waste plastic granulation exhaust treatment system and method - Google Patents
Waste plastic granulation exhaust treatment system and method Download PDFInfo
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- CN108404630A CN108404630A CN201810187005.8A CN201810187005A CN108404630A CN 108404630 A CN108404630 A CN 108404630A CN 201810187005 A CN201810187005 A CN 201810187005A CN 108404630 A CN108404630 A CN 108404630A
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- exhaust gas
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- gas
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/40—Combinations of devices covered by groups B01D45/00 and B01D47/00
-
- 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
-
- 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
-
- 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
- B01D53/76—Gas phase processes, e.g. by using aerosols
-
- 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
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Dispersion Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of waste plastic granulation waste gas processing methods, include the following steps：Exhaust gas is delivered to spray column and carries out spray washing；Exhaust gas after spray washing is delivered to demister and carries out demisting processing；It will treated that exhaust gas is delivered to that oil fume purifier carries out oil removal treatment through demisting；Exhaust gas after oil removal treatment is delivered to low-temperature plasma emission-control equipment and carries out purified treatment；Purified treated exhaust gas input value activated carbon adsorber is subjected to adsorption treatment；Its treatment process is ripe, operating cost is low, advanced treating can be carried out to plastic granulating exhaust gas, with multi-level treatment effect, effectively remove remaining short grained water-soluble substances in exhaust gas, and the organic macromolecule in exhaust gas is cracked by low-temperature plasma emission-control equipment, particle content is low in exhaust gas after processing, and is that stable, free of contamination compound is discharged by exhaust gas decomposition.
Description
Technical field
The present invention relates to technical field of waste gas treatment, more particularly to a kind of waste plastic granulation exhaust treatment system and side
Method.
Background technology
Demand of the modern life to plastics is increasing, and the regeneration of waste plastic also becomes trend, by waste plastic
Recycling washing be granulated be it is a kind of turn waste into wealth, the way that resource re-uses, but during regeneration and granulation, when temperature is more than 200
DEG C when, oxygenolysis can occur for the low boiling impurity of plasticizer and inside, generate the largely pernicious gas containing dust particles,
In contain more organic substance, such as benzene, toluene, styrene, chlorinated organics, these pernicious gases have pollution, directly
Run in be put into air and can not only cause actual bodily harm to staff, while also polluting the environment.Contain organic matter to such
The exhaust-gas treatment of matter, the methods of generally use acid-alkali washing, activated carbon adsorption, catalysis burning.But acid-alkali washing treatment effeciency is not
Height, activated carbon adsorption have activated carbon frequently to replace or regenerate costly problem, and the equipment cost for being catalyzed burning is higher, because
It is necessary to design the processing system of the new suitable waste plastic granulation exhaust-gas treatment of research and development for this.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of waste plastic granulation waste gas processing methods.
The waste plastic granulation waste gas processing method of the present invention, includes the following steps：
Exhaust gas is delivered to spray column and carries out spray washing；
Exhaust gas after spray washing is delivered to demister and carries out demisting processing；
It will treated that exhaust gas is delivered to that oil fume purifier carries out oil removal treatment through demisting；
Exhaust gas after oil removal treatment is delivered to low-temperature plasma emission-control equipment and carries out purified treatment；
Purified treated exhaust gas input value activated carbon adsorber is subjected to adsorption treatment.
Further, exhaust gas is delivered to spray column to carry out in spray washing step, using the water for being added to surfactant
Solution carries out spray washing.
Further, further include before exhaust gas being delivered to spray column progress spray washing step：Exhaust gas and ozone are carried out
It comes into full contact with, oxidation processes is carried out to exhaust gas, and the gas after oxidation processes uses ultraviolet lighting to carry out degradation treatment again.
Further, exhaust gas and ozone are come into full contact with, oxidation processes, and the gas after oxidation processes is carried out to exhaust gas
It uses again before ultraviolet lighting progress degradation treatment and further includes：Exhaust gas is delivered to cyclonic separation tank, carries out cyclone dust removal, is removed
Large-sized dust.
Further, it is provided with the eddy flow mechanism passed through for exhaust gas and form eddy flow in spray column, passes through eddy flow machine in exhaust gas
Spray operation is carried out while structure.
Further, surfactant is cationic surfactant, anion surfactant and non-ionic surface active
It is one or more in agent.
Further, drying layer is set with dry gas stream in the gas output position of spray column.
Beneficial effects of the present invention：The waste plastic granulation waste gas processing method of the present invention, successively through spray washing, demisting
Processing, oil removal treatment, low-temperature plasma purified treatment and activated carbon adsorption treatment process, treatment process is ripe, operating cost
It is low, advanced treating can be carried out to plastic granulating exhaust gas, there is multi-level treatment effect, effectively remove remaining little particle in exhaust gas
Water-soluble substances, and the organic macromolecule in exhaust gas is cracked by low-temperature plasma emission-control equipment, after processing useless
Particle content is low in gas, and is that stable, free of contamination compound is discharged by exhaust gas decomposition.
Description of the drawings
Fig. 1 is waste plastic waste gas processing method flow chart of steps of the present invention.
Specific implementation mode
Technical solution in the embodiment of the present invention that following will be combined with the drawings in the embodiments of the present invention carries out clear, complete
Description, it is clear that described embodiment be only the present invention a part of the embodiment, instead of all the embodiments.It is based on
The embodiment of the present invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining relative position relation, motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if the spy
When determining posture and changing, then directionality instruction also correspondingly changes correspondingly.In addition, the technical solution between each embodiment
It can be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when the combination of technical solution goes out
Existing conflicting or cannot achieve when, will be understood that the combination of this technical solution is not present, also not the present invention claims protection
In range.
Fig. 1 is waste plastic waste gas processing method flow chart of steps of the present invention, as shown, the present invention proposes that one kind is waste and old
Plastic granulating waste gas processing method, includes the following steps：
S3, exhaust gas is delivered to spray column progress spray washing；
S4, the exhaust gas after spray washing is delivered to demister progress demisting processing；
S5, will treated that exhaust gas is delivered to that oil fume purifier carries out oil removal treatment through demisting；
S6, the exhaust gas after oil removal treatment is delivered to low-temperature plasma emission-control equipment progress purified treatment；
S7, purified treated exhaust gas input value activated carbon adsorber is subjected to adsorption treatment；Finally through adsorption treatment
Exhaust gas afterwards is the gaseous compound that can be discharged into air.
In the present embodiment, exhaust gas is delivered to spray column and is carried out in spray washing step, using being added to surfactant
Aqueous solution carry out spray washing.
In the present embodiment, it further includes step S2 that exhaust gas, which is delivered to before spray column carries out spray washing step,：By exhaust gas
It is come into full contact with ozone, oxidation processes is carried out to exhaust gas, and the gas after oxidation processes is dropped using ultraviolet lighting again
Solution processing.
In the present embodiment, exhaust gas and ozone are come into full contact with, oxidation processes are carried out to exhaust gas, and after oxidation processes
Gas further includes step S1 before using ultraviolet lighting to carry out degradation treatment again：Exhaust gas is delivered to cyclonic separation tank, is revolved
Wind dedusting removes large-sized dust.Then exhaust gas is subjected to oxygen again first through the larger dust of cyclonic separation tank removal grain size
Change degradation organic low molecular volatile matter.
The eddy flow mechanism passed through for exhaust gas and form eddy flow is provided in the present embodiment, in spray column, in exhaust gas through overwinding
Spray operation is carried out while flowing mechanism.Spray operation, and profit are carried out while the work of eddy flow mechanism forms eddy flow to exhaust gas
Use the water for being added to surfactant as absorption carrier, removal is volatilized compared with the dust of small particle and water-soluble organic low molecular
Object.Wherein, eddy flow mechanism is arranged along air current flow direction using can be arranged by the eddy flow harden structure of driving rotation, spiral board
Multilayer.
In the present embodiment, surfactant is cationic surfactant, anion surfactant and non-ionic surface
It is one or more in activating agent.
In the present embodiment, drying layer is set with dry gas stream in the gas output position of spray column.
Finally illustrate, the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although with reference to compared with
Good embodiment describes the invention in detail, it will be understood by those of ordinary skill in the art that, it can be to the skill of the present invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the right of invention.
Claims (7)
1. a kind of waste plastic granulation waste gas processing method, it is characterised in that：Include the following steps：
Exhaust gas is delivered to spray column and carries out spray washing；
Exhaust gas after spray washing is delivered to demister and carries out demisting processing；
It will treated that exhaust gas is delivered to that oil fume purifier carries out oil removal treatment through demisting；
Exhaust gas after oil removal treatment is delivered to low-temperature plasma emission-control equipment and carries out purified treatment；
Purified treated exhaust gas input value activated carbon adsorber is subjected to adsorption treatment.
2. waste plastic granulation waste gas processing method according to claim 1, it is characterised in that：It is described to be delivered to exhaust gas
Spray column carries out in spray washing step, and spray washing is carried out using the aqueous solution for being added to surfactant.
3. waste plastic granulation waste gas processing method according to claim 1, it is characterised in that：Exhaust gas is conveyed described
Carrying out spray washing step before to spray column further includes：Exhaust gas and ozone are come into full contact with, exhaust gas is carried out at oxidation
Reason, and the gas after oxidation processes uses ultraviolet lighting to carry out degradation treatment again.
4. waste plastic granulation waste gas processing method according to claim 3, it is characterised in that：It is described by exhaust gas with it is smelly
Oxygen is come into full contact with, and carries out oxidation processes to exhaust gas, and the gas after oxidation processes is carried out using ultraviolet lighting at degradation again
Further include before reason：Exhaust gas is delivered to cyclonic separation tank, cyclone dust removal is carried out, removes large-sized dust.
5. waste plastic granulation waste gas processing method according to claim 4, it is characterised in that：Setting in the spray column
It is useful for exhaust gas and passes through the eddy flow mechanism for forming eddy flow, spray operation is carried out while exhaust gas passes through eddy flow mechanism.
6. waste plastic granulation waste gas processing method according to claim 5, it is characterised in that：The surfactant is
It is one or more in cationic surfactant, anion surfactant and nonionic surfactant.
7. waste plastic granulation waste gas processing method according to claim 6, it is characterised in that：In the gas of the spray column
Drying layer is arranged with dry gas stream in body output position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810187005.8A CN108404630A (en) | 2018-03-07 | 2018-03-07 | Waste plastic granulation exhaust treatment system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810187005.8A CN108404630A (en) | 2018-03-07 | 2018-03-07 | Waste plastic granulation exhaust treatment system and method |
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| Publication Number | Publication Date |
|---|---|
| CN108404630A true CN108404630A (en) | 2018-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810187005.8A Pending CN108404630A (en) | 2018-03-07 | 2018-03-07 | Waste plastic granulation exhaust treatment system and method |
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| Country | Link |
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| CN (1) | CN108404630A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109435107A (en) * | 2018-12-19 | 2019-03-08 | 上海睿聚环保科技有限公司 | A kind of recycling waste plastic process system |
| CN109719861A (en) * | 2018-12-19 | 2019-05-07 | 上海睿聚环保科技有限公司 | A kind of hard miscellaneous material reclaiming technique |
| CN109847518A (en) * | 2019-04-01 | 2019-06-07 | 方喜贵 | A kind of plastic granulating flue gas processing method and processing equipment |
| CN110585844A (en) * | 2019-10-12 | 2019-12-20 | 杭州临安清云环保设备有限公司 | Plastic granulation waste gas treatment system and waste gas treatment process |
| CN112237831A (en) * | 2019-07-18 | 2021-01-19 | 广州熠森能环保科技有限公司 | Exhaust gas purification treatment method and apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104524913A (en) * | 2014-12-26 | 2015-04-22 | 游瑞生 | Treatment method of waste gas generated in polyolefin wood plastic granulation |
| CN104548901A (en) * | 2014-12-31 | 2015-04-29 | 环境保护部华南环境科学研究所 | Integrated treating method for plastic pelletization waste gas |
| CN105289188A (en) * | 2015-12-01 | 2016-02-03 | 天紫环保产业开发有限责任公司 | Waste gas treatment system for treating waste gas in granulation process of waste plastic |
| CN106669353A (en) * | 2017-02-08 | 2017-05-17 | 绍兴锦森印染有限公司 | Waste gas treatment process for printing-dyeing process |
-
2018
- 2018-03-07 CN CN201810187005.8A patent/CN108404630A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104524913A (en) * | 2014-12-26 | 2015-04-22 | 游瑞生 | Treatment method of waste gas generated in polyolefin wood plastic granulation |
| CN104548901A (en) * | 2014-12-31 | 2015-04-29 | 环境保护部华南环境科学研究所 | Integrated treating method for plastic pelletization waste gas |
| CN105289188A (en) * | 2015-12-01 | 2016-02-03 | 天紫环保产业开发有限责任公司 | Waste gas treatment system for treating waste gas in granulation process of waste plastic |
| CN106669353A (en) * | 2017-02-08 | 2017-05-17 | 绍兴锦森印染有限公司 | Waste gas treatment process for printing-dyeing process |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109435107A (en) * | 2018-12-19 | 2019-03-08 | 上海睿聚环保科技有限公司 | A kind of recycling waste plastic process system |
| CN109719861A (en) * | 2018-12-19 | 2019-05-07 | 上海睿聚环保科技有限公司 | A kind of hard miscellaneous material reclaiming technique |
| CN109719861B (en) * | 2018-12-19 | 2021-04-13 | 上海睿聚环保科技有限公司 | Hard impurity material recycling and regenerating process |
| CN109847518A (en) * | 2019-04-01 | 2019-06-07 | 方喜贵 | A kind of plastic granulating flue gas processing method and processing equipment |
| CN112237831A (en) * | 2019-07-18 | 2021-01-19 | 广州熠森能环保科技有限公司 | Exhaust gas purification treatment method and apparatus |
| CN110585844A (en) * | 2019-10-12 | 2019-12-20 | 杭州临安清云环保设备有限公司 | Plastic granulation waste gas treatment system and waste gas treatment process |
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Application publication date: 20180817 |