CN104524936B - A kind of processing means of the plastic granulating waste gas of integration - Google Patents
A kind of processing means of the plastic granulating waste gas of integration Download PDFInfo
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- CN104524936B CN104524936B CN201410846963.3A CN201410846963A CN104524936B CN 104524936 B CN104524936 B CN 104524936B CN 201410846963 A CN201410846963 A CN 201410846963A CN 104524936 B CN104524936 B CN 104524936B
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Abstract
The present invention relates to the processing means of the plastic granulating waste gas of a kind of integration.This device includes oxidizing tower, acid mist purifying tower and adsorption tower, and wherein vertical unit three tower is integrated the most from the bottom to top, and horizontal type device is integrated the most from left to right；Waste gas enters oxidizing tower by exhaust gas inlet, respectively after ozone and UV degradation, enters acid mist purifying tower by central authorities' airway；Rear waste gas, after gas distributor and spray equipment, passes sequentially through central authorities' airway and acid mist purifying tower gas distributor enters adsorption tower, finally discharge from the outlet of clean gas.Obvious processing effect of the present invention, has good oxidation Decomposition, absorbability, and saves occupation of land plastic granulating waste gas, reduces energy consumption, reduces cost, has stronger application effect.
Description
Technical field
The invention belongs to discarded the first day of the lunar month material and utilize technical field, be specifically related to a kind of plastic granulating plastic granulating emission-control equipment.
Background technology
Along with improving constantly of plastics demand, waste plastic is also gradually increased, and the process problem of plastic garbage is the big difficult point of in current environmental treatment.It is a kind of environment friendliness way that waste plastic carries out recycling.Present stage, China's waste plastics recovery technology, still based on physiochemical mutagens, recycles operation predominantly collections, taxonomic revision, cleans, is dried, crushes pelletize, reprocess through modification and make the product of the suitable market demand or be used in mixed way with virgin material.
Discarded north material is carried out recycling is a kind of environment friendliness way, and it includes Physical and chemical method.Physical is through again using on the parts such as industry and building industry after machinery is processed waste plastic to pulverize.Chemical method includes melted regeneration, thermal cracking and energy regenerating etc..Chemical method is the new direction that north material recycles, and mainly includes the oiling technology of plastics, coking technology and manufactures aromatic compound.The raw material monomer major part of plastics comes from oil, and oil is non-renewable energy resources, plastics is carried out oiling process and not only can protect environment but also can reach the purpose of fuel-economizing.But, either melted regeneration, thermal cracking, energy regenerating or burning, these methods all be unable to do without high-temperature process.
During waste plastic regenerating and pelleting, when temperature is more than 200 DEG C, plasticizer and the low boiling impurity of inside thereof, oxidation Decomposition can occur, the waste gas produced mainly includes that dust, the fragrance same clan, amine, hydrogen sulfide, phenols, aldehydes, acid, alkali, unsaturated hydro carbons etc. carry compound frowzy, the plastic waste band of gas is caused to have a kind of foul odour, the ecological environment that severe contamination is local, bring harm to nearby residents and health and safety.
In consideration of it, spy of the present invention proposes the processing means of a set of plastic granulating waste gas.
Summary of the invention
The purpose of the present invention is that the deficiency overcoming prior art to exist, it is provided that the processing means of the plastic granulating waste gas of a kind of integration.
The purpose of the present invention can realize one of by the following technical programs.
The processing means of the plastic granulating waste gas of a kind of integration, according to the handling process of waste gas, it includes that oxidizing tower, acid mist purifying tower and adsorption tower, three towers are integrated successively；Exhaust gas inlet it is provided with bottom oxidizing tower, oxidizing tower includes the ozone oxidation section for waste gas carries out ozone oxidation and for waste gas carries out the UV degradation section of UV degradation, UV degradation section top is provided with ozone oxidation gas distributor, is connected by first central authorities' airway between ozone oxidation section and UV degradation section；Connected by second central authorities' airway between acid mist purifying tower with UV degradation section, acid mist purifying tower bottom is provided with UV degradation gas distributor, acid mist purifying top of tower is provided with demister, and demister is arranged over acid mist purifying gas distributor, is provided with spray equipment below demister；Being provided with acid mist air distribution plate in acid mist purifying tower, acid mist air distribution plate is provided with packing layer, and spray equipment is connected with liquid supplying apparatus, and acid mist purifying tower bottom is provided with liquid outlet, and liquid outlet connects liquid handling device, and liquid handling device is connected with liquid supplying apparatus；Connected by the 3rd central authorities' airway between adsorption tower with acid mist purifying tower, be provided with the outlet of clean gas bottom adsorption tower, in adsorption tower, be provided with adsorbent.
It is further preferred that described spray equipment spray alkaline absorption solution.
It is further preferred that the adsorbent of filling uses selection activated carbon in adsorption tower.
Optimizing further, the processing means of the plastic granulating waste gas of this integration is vertical and horizontal type structure, includes oxidizing tower, acid mist purifying tower and adsorption tower three tower and be integrated the most from the bottom to top in vertical structure；In horizontal type structure, oxidizing tower, acid mist purifying tower and adsorption tower three tower lateral arrangement successively are integrated.
Optimizing further, ozone oxidation gas distributor and first central authorities' airway connect；UV degradation gas distributor and second central authorities' airway connect；Acid mist purifying gas distributor airway central with third two is connected.
Optimizing further, described packing layer is Raschig ring, Pall ring, cascade ring or ripple packing.
Optimizing further, the clean gas outlet of described adsorption tower is provided with plastic granulating wasted nickel catalyst device.
Optimizing further, use multilamellar deflection plate structure, form tortuous baffling passage in oxidizing tower, form passage between adjacent two deflection plates, each deflection plate all has one end to be connected with oxidizing tower sidewall, and the other end not and leaves gap between oxidizing tower sidewall.
Optimize further, in acid mist purifying tower, the nozzle of spray equipment is towards contrary with gas flow direction, UV degradation gas distributor is positioned in the spray liquid of acid mist purifying tower bottom storage and carries out one-level bubbling, being additionally provided with another spray equipment below acid mist air distribution plate, spray equipment is connected with liquid supplying apparatus.
Compared with prior art, the invention have the advantages that and technique effect:
The integrated treatment unit compact conformation of the present invention, save and take up an area, plastic granulating waste gas can be carried out advanced treating, there is multi-level, heterogeneous collaborative treatment effect, plastic granulating waste gas had good oxidation Decomposition, absorbability, structure design advantageously reduces energy consumption, the advantage reducing cost.
Accompanying drawing explanation
Fig. 1 is a kind of integrated plastic pelletize emission-control equipment structural representation (horizontal) in embodiment.
Fig. 2 is another kind of integrated plastic pelletize emission-control equipment structural representation (vertical) in embodiment.
Detailed description of the invention
It is embodied as being described further to the present invention below in conjunction with accompanying drawing, but the enforcement of the present invention and protection are not limited to this.
Such as Fig. 1 or Fig. 2, the processing means of the plastic granulating waste gas of a kind of integration, it includes oxidizing tower 3, acid mist purifying tower 7 and adsorption tower 15 successively according to the handling process of waste gas, and three towers are integrated；Exhaust gas inlet 1 it is provided with bottom oxidizing tower, oxidizing tower includes the ozone oxidation section 2 for waste gas carries out ozone oxidation and for waste gas carries out the UV degradation section 6 of UV degradation, UV degradation section 6 top is provided with ozone oxidation gas distributor 5, is connected by first central authorities' airway between ozone oxidation section 2 and UV degradation section 6；Connected by second central authorities' airway between acid mist purifying tower 7 with UV degradation section 6, UV degradation gas distributor 8 it is provided with bottom acid mist purifying tower 7, acid mist purifying tower 7 top is provided with demister 13, demister 13 is arranged over acid mist purifying gas distributor 12, is provided with spray equipment 11 below demister 13；Acid mist air distribution plate 9 it is provided with in acid mist purifying tower 7, acid mist air distribution plate 9 is provided with packing layer 10, spray equipment 11 is connected with liquid supplying apparatus 18, it is provided with liquid outlet bottom acid mist purifying tower 7, liquid outlet connects liquid handling device 17(can be provided with Calx, precipitation, filtration reactant etc.), liquid handling device 17 and liquid supplying apparatus 18(supply absorbing liquid) be connected；Connected by the 3rd central authorities' airway between adsorption tower 15 with acid mist purifying tower 7, be provided with clean gas outlet 16 bottom adsorption tower 15, in adsorption tower 15, be provided with adsorbent.As an example, described acid mist purifying tower can use the air inlet of bubble column body, acid mist purifying tower and adsorption tower to be equipped with gas distributor.
As an example, described spray equipment 11 sprays alkaline absorption solution, such as sodium hydroxide solution.
As an example, in adsorption tower 15, the adsorbent 14 of filling uses and selects activated carbon.
As an example, the processing means of the plastic granulating waste gas of this integration is vertical and horizontal type structure.Such as Fig. 2, vertical structure includes oxidizing tower 3, acid mist purifying tower 7 and adsorption tower 15 3 tower and is integrated the most from the bottom to top；Such as Fig. 1, in horizontal type structure, oxidizing tower 3, acid mist purifying tower 7 and adsorption tower 15 3 tower lateral arrangement successively are integrated.
As an example, ozone oxidation gas distributor 5 is connected with first central authorities' airway；UV degradation gas distributor 8 is connected with second central authorities' airway；Acid mist purifying gas distributor 12 airway central with third two is connected.Described packing layer is Raschig ring, Pall ring, cascade ring or ripple packing.As an example, the clean gas outlet of described adsorption tower also can be provided with plastic granulating wasted nickel catalyst device.
As an example, oxidizing tower uses multilamellar deflection plate structure, forms tortuous baffling passage and realize the mixing of plastic granulating waste gas and ozone, between adjacent two deflection plates, form passage, each deflection plate all has one end to be connected with oxidizing tower sidewall, and the other end not and leaves gap between oxidizing tower sidewall.In acid mist purifying tower, the nozzle of spray equipment 11 is towards contrary with gas flow direction, UV degradation gas distributor 8 is positioned in the spray liquid of acid mist purifying tower bottom storage and carries out one-level bubbling, being additionally provided with another spray equipment (two grades of sprays) below acid mist air distribution plate 9, spray equipment is connected with liquid supplying apparatus 18.
As an example, in acid mist purifying tower, spray equipment 11 sprays for single-stage, and in adsorption tower 15, the adsorbent of filling selects double-layer active carbon.
As shown by arrows in FIG., waste gas enters oxidizing tower by exhaust gas inlet, respectively after ozone and UV degradation, enters acid mist purifying tower by central authorities' airway；Rear waste gas, after gas distributor and spray equipment, passes sequentially through central authorities' airway and acid mist purifying tower gas distributor enters adsorption tower, finally discharge from the outlet of clean gas.
Claims (6)
1. the processing means of an integrated plastic granulating waste gas, it is characterised in that including oxidizing tower (3), acid mist purifying tower (7) and adsorption tower (15) successively according to the handling process of waste gas, three towers are integrated；The processing means of the plastic granulating waste gas of this integration is horizontal type structure；In horizontal type structure, oxidizing tower (3), acid mist purifying tower (7) and adsorption tower (15) three tower lateral arrangement successively are integrated；Exhaust gas inlet (1) it is provided with bottom oxidizing tower, oxidizing tower includes the ozone oxidation section (2) for waste gas carries out ozone oxidation and for waste gas carries out the UV degradation section (6) of UV degradation, UV degradation section (6) top is provided with ozone oxidation gas distributor (5), is connected by first central authorities' airway between ozone oxidation section (2) and UV degradation section (6)；Connected by second central authorities' airway between acid mist purifying tower (7) with UV degradation section (6), acid mist purifying tower (7) bottom is provided with UV degradation gas distributor (8), acid mist purifying tower (7) top is provided with demister (13), demister (13) is arranged over acid mist purifying gas distributor (12), and demister (13) lower section is provided with spray equipment (11)；Acid mist air distribution plate (9) it is provided with in acid mist purifying tower (7), acid mist air distribution plate (9) is provided with packing layer (10), spray equipment (11) is connected with liquid supplying apparatus (18), acid mist purifying tower (7) bottom is provided with liquid outlet, liquid outlet connects liquid handling device (17), and liquid handling device (17) is connected with liquid supplying apparatus (18)；Ozone oxidation gas distributor (5) is connected with first central authorities' airway；UV degradation gas distributor (8) is connected with second central authorities' airway；Acid mist purifying gas distributor (12) is connected with the 3rd central authorities' airway；Being connected by the 3rd central authorities' airway between adsorption tower (15) with acid mist purifying tower (7), adsorption tower (15) bottom is provided with clean gas outlet (16), and adsorption tower is provided with adsorbent in (15)；Using multilamellar baffle arrangement in oxidizing tower, form tortuous baffling passage, form passage between adjacent two deflection plates, each deflection plate all has one end to be connected with oxidizing tower sidewall, leaves gap between the other end and oxidizing tower sidewall.
The processing means of the plastic granulating waste gas of a kind of integration the most according to claim 1, it is characterised in that described spray equipment (11) spray alkaline absorption solution.
The processing means of the plastic granulating waste gas of a kind of integration the most according to claim 1, it is characterised in that in adsorption tower (15), the adsorbent (14) of filling selects activated carbon.
The processing means of the plastic granulating waste gas of a kind of integration the most according to claim 1, it is characterised in that described packing layer is Raschig ring, Pall ring, cascade ring or ripple packing.
The processing means of the plastic granulating waste gas of a kind of integration the most according to claim 1, it is characterised in that the clean gas outlet of described adsorption tower is provided with plastic granulating wasted nickel catalyst device.
The processing means of the plastic granulating waste gas of a kind of integration the most according to claim 1, it is characterized in that, in acid mist purifying tower, the nozzle of spray equipment (11) is towards contrary with gas flow direction, UV degradation gas distributor (8) is positioned in the spray liquid of acid mist purifying tower bottom storage and carries out one-level bubbling, acid mist air distribution plate (9) lower section is additionally provided with another spray equipment, and spray equipment is connected with liquid supplying apparatus (18).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410846963.3A CN104524936B (en) | 2014-12-31 | 2014-12-31 | A kind of processing means of the plastic granulating waste gas of integration |
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| CN201410846963.3A CN104524936B (en) | 2014-12-31 | 2014-12-31 | A kind of processing means of the plastic granulating waste gas of integration |
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| CN104524936A CN104524936A (en) | 2015-04-22 |
| CN104524936B true CN104524936B (en) | 2016-08-24 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105126571A (en) * | 2015-09-27 | 2015-12-09 | 苏州日臻环保设备有限公司 | Wet-type oxidation/composite photochemical combined treatment equipment for waste gas of sewage and treatment method |
| CN106903820A (en) * | 2017-03-08 | 2017-06-30 | 郑州宇冶环保科技有限公司 | A kind of sealed furnace melts waste or used plastics processing unit and its handling process |
| CN111617611A (en) * | 2020-06-16 | 2020-09-04 | 潘帅 | Energy-saving environment-friendly desulfurization, denitrification and dust removal device and treatment method |
| CN112479505B (en) * | 2020-12-11 | 2022-07-26 | 中国科学院生态环境研究中心 | Coupled biological-membrane-electrochemical waste gas and wastewater co-treatment device, method and application |
Citations (4)
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|---|---|---|---|---|
| CN102764587A (en) * | 2012-08-03 | 2012-11-07 | 北京化工大学常州先进材料研究院 | Method for processing waste gas containing ozone |
| CN203303834U (en) * | 2013-06-20 | 2013-11-27 | 江苏省宏远玻璃钢有限公司 | Efficient mixed waste gas treatment device |
| CN103495336A (en) * | 2013-09-27 | 2014-01-08 | 深圳市科德环保科技有限公司 | High-concentration odor pollutant waste gas treatment equipment |
| CN204768193U (en) * | 2014-12-31 | 2015-11-18 | 环境保护部华南环境科学研究所 | Processing apparatus of plastics granulation waste gas of integration |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102764587A (en) * | 2012-08-03 | 2012-11-07 | 北京化工大学常州先进材料研究院 | Method for processing waste gas containing ozone |
| CN203303834U (en) * | 2013-06-20 | 2013-11-27 | 江苏省宏远玻璃钢有限公司 | Efficient mixed waste gas treatment device |
| CN103495336A (en) * | 2013-09-27 | 2014-01-08 | 深圳市科德环保科技有限公司 | High-concentration odor pollutant waste gas treatment equipment |
| CN204768193U (en) * | 2014-12-31 | 2015-11-18 | 环境保护部华南环境科学研究所 | Processing apparatus of plastics granulation waste gas of integration |
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Granted publication date: 20160824 Termination date: 20181231 |