1. Ukwakhiwa kanye nezingxenye eziyinhloko ze-spray paint waste gas
Inqubo yokudweba isetshenziswa kakhulu emishinini, emotweni, emishinini kagesi, ezintweni zasendlini, emikhunjini, ifenisha nakwezinye izimboni.
Penda impahla eluhlaza —— upende wenziwe ngezinto ezingaguquguquki futhi eziguquguqukayo, ezingaguquguquki okuhlanganisa into yefilimu nenye into yefilimu eyisizayo, i-ejenti yokuhlanza eguquguqukayo isetshenziselwa ukuhlambulula upende, ukuze kufezwe injongo yendawo kapende eshelelayo nenhle.
Inqubo yokufafaza ngopende ikhiqiza ikakhulukazi inkungu yepende kanye nokungcoliswa kwegesi yemfucuza ephilayo, upende ngaphansi kwesenzo sokucindezela okukhulu sibe yizinhlayiya, lapho ufutha, ingxenye yopende ayizange ifinyelele endaweni yokufafaza, i-diffusion ne-airflow ukuze yakhe inkungu yepende; I-organic waste gas evela ekuvuthweni kwe-diluent, i-solvent ye-organic ayinamathele endaweni kapende, upende kanye nenqubo yokuphulukisa izokhipha i-organic waste gas (kubikwe ukuthi amakhulukhulu ama-organic compounds aguquguqukayo, ngokulandelanayo ayingxenye ye-alkane, i-alkanes, i-olefin, i-aromatic compounds, utshwala, i-aldehyde, i-ketone, i-ester, i-ester).
2. Umthombo kanye nezici zegesi yokukhipha igesi enamathelayo
Ishabhu yokupenda yezimoto kufanele iqhube upende ngaphambi kokwelashwa, i-electrophoresis kanye nopende wokufutha endaweni yokusebenza. Inqubo kapende ihlanganisa ukupenda kokufuthwa, ukugeleza nokomisa, kulezi zinqubo kuzokhiqiza igesi yemfucuza yemvelo (VOCs) kanye nesifutho sokufutha, ngakho lezi zinqubo zidinga ukufafaza ukwelashwa kwegesi yemfucuza yegumbi likapende.
(1) Igesi emoshayo evela egunjini lokupenda lokufutha
Ukuze kugcinwe indawo yokusebenza yokufafaza, ngokuvumelana nezinhlinzeko zoMthetho Wokuphepha Nokuphepha Kwezempilo, umoya kufanele ushintshwe ngokuqhubekayo ekamelweni lokufafaza, futhi isivinini sokushintsha umoya kufanele silawulwe ngaphakathi kwebanga (0.25 ~ 1) m / s. Ukwakheka okuyinhloko kwegesi yokukhipha umoya yi-solvent yemvelo kapende wokufuthwa, izingxenye zayo eziyinhloko ama-hydrocarbons anephunga elimnandi (i-benzene emithathu kanye ne-non-methane isiyonke i-hydrocarbon), i-alcohol ether, i-ester organic solvent, ngoba umthamo wokukhipha umoya wegumbi lokufafaza mkhulu kakhulu, ngakho-ke ingqikithi yegesi yemfucuza ekhiqiziwe iphansi kakhulu, imvamisa iba ngu-100 mg/m3. Ngaphezu kwalokho, ukukhishwa kwegumbi lopende ngokuvamile kuqukethe inani elincane lenkungu kapende enganakiwe ngokuphelele, ikakhulukazi igumbi lokufafaza likapende elomile, inkungu kapende ekuphumeni, ingase ibe isithiyo sokumosha ukwelashwa kwegesi, imfucuza yokwelashwa kwegesi kufanele kube kusengaphambili.
(2) Udoti wegesi ophuma endlini yokomisa
Upende wobuso ngemuva kokufufaza ngaphambi kokoma, ufuna ukugeleza umoya, ifilimu kapende emanzi e-solvent ye-organic enqubweni yokomisa okuguquguqukayo, ukuze kuvinjwe ingozi yokuqhuma kwe-solvent organic aggregation, igumbi lomoya kufanele libe umoya oqhubekayo, shintsha isivinini somoya ngokuvamile ulawule cishe u-0.2 m / s, ukukhishwa kwe-exhaust ukwakheka kanye negumbi lokupenda aliqukethe ingqikithi yopende, kodwa i-spray ayiqukethe ingqikithi yopende, Igumbi, ngokwevolumu yokukhipha umoya, ngokuvamile egumbini lokufutha igesi yokukhipha igesi izikhathi ezingaba izikhathi ezi-2, ingafinyelela ku-300 mg/m3, ngokuvamile exutshwe ne-spray room exhaust ngemva kokwelashwa okuphakathi. Ngaphezu kwalokho, igumbi lokupenda, indawo yokugeza indle kapende ongaphezulu kufanele futhi kukhiphe igesi efanayo yemfucuza yezinto eziphilayo.
(3)Digesi ephumayo ekhalayo
Ukwakheka kwegesi yokumisa imfucuza kuyinkimbinkimbi kakhulu, ngaphezu kwe-solvent ephilayo, ingxenye ye-plasticizer noma i-resin monomer nezinye izingxenye eziguquguqukayo, kodwa futhi iqukethe imikhiqizo yokubola okushisayo, imikhiqizo yokusabela. I-Electrophoretic primer nohlobo lwe-solvent topcoat dryer inokukhishwa kwegesi ephumayo, kodwa umehluko wayo wokwakheka kanye nokugxila mkhulu.
※Izingozi zegesi yokukhipha upende kapende:
Kuyaziwa kusukela ekuhlaziyweni ukuthi igesi engcolile evela egumbini lokufafaza, igumbi lokomisa, igumbi lokuxuba upende kanye negumbi lokuhlanza indle likapende elingaphezulu liphansi futhi ligeleza kakhulu, futhi izingxenye eziyinhloko zokungcola ama-hydrocarbon anephunga elimnandi, i-alcohol ether kanye ne-ester organic solvents. Ngokwe-“Comprehensive Emission Standard for Air Pollution”, ukugcwala kwale gesi engcolile ngokuvamile kungaphakathi komkhawulo wokukhipha. Ukuze ubhekane nezidingo zesilinganiso sokungcoliswa kwezinga elijwayelekile, izimboni eziningi zezimoto zisebenzisa indlela yokukhipha umoya ophakeme. Nakuba le ndlela ingahlangabezana nezindinganiso zamanje zokukhishwa, kodwa igesi elilahlwayo empeleni liwukukhishwa okuhlanjululwe okunganakiwe, futhi inani eliphelele lezinto ezingcolisa igesi ezikhishwa umugqa omkhulu wokumboza umzimba lingase libe phezulu kumakhulu amathani, okubangela ukulimala okubi kakhulu emkhathini.
Penda inkungu ku-solvent ephilayo —— benzene, toluene, xylene iyisincibilikisi esinobuthi esinamandla, esisebenza emoyeni endaweni yokusebenzela, abasebenzi ngemva kokuhogela ngomgudu wokuphefumula bangabangela ubuthi obunzima nobungamahlalakhona, ikakhulukazi kubangele umonakalo ohlelweni lwezinzwa olumaphakathi kanye ne-hematopoietic, ukuhogela okuphezulu kwesikhathi esifushane (okungaphezu kuka-1500 mg/mplastic okubangela i-anemia ephansi, i-anemia ephansi ye-benzene, i-anemia ephansi kakhulu) Umhwamuko we-benzene ungase futhi ubangele ukuhlanza, izimpawu zemizwa njengokudideka.
※Ukukhetha indlela yokwelapha igesi engcolile yopende wesifutho nokunamathela:
Ekukhetheni izindlela zokwelashwa kwe-organic, lezi zici ezilandelayo kufanele zicatshangelwe ngokujwayelekile: uhlobo nokugxilwa kokungcoliswa kwemvelo, izinga lokushisa le-organic exhaust kanye nezinga lokugeleza kokukhipha, okuqukethwe yizinhlayiya, kanye nezinga lokulawula ukungcola okudingeka lifinyelelwe.
1Sthandaza upende ekwelapheni lokushisa kwegumbi
Igesi yokukhipha ephuma ekamelweni lokupenda, igumbi lokomisa, igumbi lokuxuba upende kanye negumbi lokuhlanza indle ye-topcoat yigesi yokukhipha izinga lokushisa ekamelweni lokuhlushwa okuphansi nokugeleza okukhulu, futhi ukwakheka okuyinhloko kokungcola ama-hydrocarbon anephunga elimnandi, utshwala ne-ether kanye ne-ester organic solvents. Ngokwe-GB16297 “Comprehensive Emission Standard for Air Pollution”, ukugcwala kwale gesi engcolile ngokuvamile kungaphakathi komkhawulo wokukhipha. Ukuze ubhekane nezidingo zesilinganiso sokungcoliswa kwezinga elijwayelekile, izimboni eziningi zezimoto zisebenzisa indlela yokukhipha umoya ophakeme. Nakuba le ndlela ingahlangabezana nezindinganiso zamanje zokukhishwa, kodwa igesi engcolile ikhishwa ngokuyisisekelo ehlanjululwe ngaphandle kokwelashwa, futhi inani eliphelele lezinto ezingcolisa igesi ezikhishwa umugqa omkhulu wokumboza umzimba lingase libe phezulu kumakhulu amathani, okubangela ukulimala okubi kakhulu emkhathini.
Ukuze kuncishiswe ngokuyisisekelo ukukhishwa kokungcola kwegesi ephumayo, izindlela eziningana zokwelapha igesi yokukhipha igesi zingasetshenziswa ngokuhlanganyela ekwelapheni, kodwa izindleko zokwelashwa kwegesi yokukhipha igesi enomthamo omkhulu womoya ziphezulu kakhulu. Njengamanje, indlela yangaphandle evuthiwe iwukuba uqale ugxilise ingqondo (ngesondo le-adsorption-desorption ukuze ugxilise inani eliphelele izikhathi ezingaba ngu-15), ukuze kwehliswe inani eliphelele elizophathwa, bese usebenzisa indlela elimazayo ukwelapha igesi engcolile egxilile. Kunezindlela ezifanayo e-China, indlela yokuqala yokusetshenziswa kwe-adsorption (ikhabhoni ecushiwe noma i-zeolite njenge-adsorbent) yokuhlushwa okuphansi, izinga lokushisa legumbi lokufafaza upende i-gas adsorption, ne-high lokushisa igesi desorption, igesi eyimfucumfucu egxilile kusetshenziswa i-catalytic combustion noma indlela yokuvuselela ukushisa okushisayo yokwelashwa. Ukuhlushwa okuphansi, izinga lokushisa elivamile lokufafaza upende imfucuza yegesi indlela yokwelashwa kwezinto eziphilayo iyathuthukiswa, ubuchwepheshe basekhaya kulesi sigaba samanje abuvuthiwe, kodwa kufanelekile ukunaka. Ukuze kwehliswe ngempela ukungcoliswa komphakathi kwegesi ewudoti enamathelayo, sidinga futhi ukuxazulula inkinga kusuka emthonjeni, njengokusetshenziswa kwezinkomishi ezijikelezayo ze-electrostatic nezinye izindlela zokuthuthukisa izinga lokusetshenziswa kwezingubo zokumboza, ukuthuthukiswa kwezingubo ezisekelwe emanzini kanye nezinye izigqoko zokuvikela imvelo.
2Dukwelashwa kwegesi engcolile
Ukomisa igesi yemfucuza ingeyezinga eliphakathi nendawo eliphezulu legesi yemfucuza yokushisa ephezulu, elungele ukwelashwa kwendlela yokuvutha. Ukusabela komlilo kunemingcele emithathu ebalulekile: isikhathi, izinga lokushisa, ukuphazamiseka, okungukuthi, ukushiswa kwezimo ze-3T. Ukusebenza kahle kokwelashwa kwegesi eyimfucuza kuyizinga elanele lokusabela kokusha futhi kuncike ekulawuleni isimo se-3T sokusabela komlilo. I-RTO ingakwazi ukulawula izinga lokushisa lomlilo (820~900℃) kanye nesikhathi sokuhlala (1.0~1.2s), futhi iqinisekise ukuthi ukuphazamiseka okudingekayo (umoya nezinto eziphilayo kuxutshwe ngokugcwele), ukusebenza kahle kokwelashwa kufinyelela ku-99%, futhi izinga lokushisa kwemfucuza liphezulu, futhi ukusetshenziswa kwamandla okusebenzayo kuphansi. Iningi lamafekthri ezimoto ase-Japan e-Japan nase-China ngokuvamile lisebenzisa i-RTO ukuze liphathe igesi ephumayo yokomisa (i-primer, i-medium coating, i-top coat drying). Isibonelo, i-Dongfeng Nissan yemoto yabagibeli i-Huadu coating line esebenzisa i-RTO centralized treatment of coating drying exhaust gas effect muhle kakhulu, ihlangabezana ngokugcwele nezidingo zemithetho yokukhipha umoya. Kodwa-ke, ngenxa yokutshalwa kwezimali okuphezulu kwesikhathi esisodwa kwemishini yokwelapha igesi yemfucuza ye-RTO, akukhona ukonga ekuphathweni kwegesi engcolile ngokugeleza kwegesi engcolile encane.
Ngomugqa wokukhiqiza oqediwe oqediwe, lapho imishini eyengeziwe yokwelapha igesi engcolile idingeka, isistimu yokuvutha kwe-catalytic kanye nesistimu yokuvuselela ukushisa okushisayo ingasetshenziswa. Isistimu yokushiswa kwe-catalytic inotshalomali oluncane kanye nokusebenzisa amandla avuthayo aphansi.
Ngokuvamile, ukusetshenziswa kwe-platinum njenge-catalyst kunganciphisa izinga lokushisa le-oxidizing i-organic waste gas libe cishe ku-315 ℃. I-Catalytic combustion system ingasetshenziselwa ukwelashwa kwegesi yemfucuza yokomisa, ikakhulukazi efanelekile ukunikezwa kwamandla okomisa kusetshenziswa izikhathi zokushisisa ngogesi, inkinga ekhona ukuthi ungagwema kanjani ukwehluleka kobuthi be-catalyst. Kusukela kokuhlangenwe nakho kwabanye abasebenzisi, ngopende ojwayelekile wokomisa igesi engcolile, ngokwandisa ukuhlungwa kwegesi engcolile nezinye izinyathelo, kungaqinisekisa ukuthi impilo ye-catalyst yiminyaka engu-3 ~ 5; I-electrophoretic paint drying waste gas kulula ukubangela ubuthi be-catalyst, ngakho-ke ukwelashwa kwegesi ye-electrophoretic yokomisa imfucuza kufanele kuqaphele usebenzisa ukuvutha kwe-catalytic. Enkambweni yokwelashwa kwegesi engcolile kanye nokuguqulwa komugqa wokugcoba umzimba wemoto ye-Dongfeng yezohwebo, igesi yemfucumfucu ye-electrophoretic primer drying iphathwa ngendlela ye-RTO, futhi igesi engcolile yokomisa upende ophezulu iphathwa ngendlela yokuvutha kwe-catalytic, futhi umphumela wokusetshenziswa muhle.
※Inqubo yokwelapha igesi yokufaka imfucuza ngopende:
Imboni yokufafaza uhlelo lokwelapha igesi yemfucuza isetshenziswa kakhulu ukuhlanza igumbi lokupeyinta imfucuza yegumbi, ukulashwa kwegesi yemfucuza yefekthri, ukulashwa kwegesi yemfucuza embonini yokukhiqiza imishini, ukulashwa kwegesi yemfucuza yasefekthri ye-Guardrail, ukukhiqizwa kwezimoto kanye nokwelashwa kwegesi ye-4S shop spray room waste. Njengamanje, kunezinqubo ezihlukahlukene zokwelapha, njengalezi: indlela yokufingqa, indlela yokumunca, indlela yokuvutha, indlela ye-catalytic, indlela yokukhanga, indlela yezinto eziphilayo kanye nendlela ye-ion.
1. Windlela yesifutho se-ater + i-activated carbon adsorption kanye ne-desorption + i-catalytic combustion
Ukusebenzisa i-spray tower ukususa inkungu kapende kanye ne-soluble emanzini, emva kwesihlungi esomile, ku-activated carbon adsorption device, njenge-activated carbon adsorption egcwele, bese ukhumula (indlela yokuhlubula nge-steam stripping, ukufudumeza kukagesi, ukuhlubula i-nitrogen), emva kwegesi yokuhlubula (ukugxila kukhuphuke izikhathi eziningi) ngokuhlubula isiphephethasi ku-carbon dioxide, i-combus, i-combus yamanzi ngemva kokukhishwa.
2. WI-ater spray + i-activated carbon adsorption kanye ne-desorption + indlela yokutholwa kwe-condensation
Ukusebenzisa isifutho sombhoshongo ukususa inkungu kapende nokuncibilika emanzini, ngemva kwesihlungi esomile, kudivayisi ye-carbon adsorption ecushiwe, efana ne-carbon adsorption egcwele, bese ikhumula (indlela yokuhlubula nge-steam stripping, ukushisisa ngogesi, ukuhlubula i-nitrogen), ngemva kokucubungula ukufiphala kwegesi adsorption condensation, ukubuyiswa kwe-condensate yezinto ezibalulekile ngokuhlukaniswa. Le ndlela isetshenziselwa ukwelashwa kwegesi engcolile ngokugxila okuphezulu, izinga lokushisa eliphansi kanye nevolumu yomoya ephansi. Kodwa le ndlela yokutshala imali, ukusetshenziswa kwamandla okuphezulu, izindleko zokusebenza, isifutho segesi yokukhipha upende kapende "i-benzene emithathu" kanye nenye igesi ephumayo ngokuvamile ingaphansi kuka-300 mg/m3, ukugxila okuphansi, umthamo womoya omkhulu (umthamo womoya weshabhu lokukhiqiza upende wezimoto uvame ukuba ngaphezu kuka-100000), futhi ngenxa yokuthi ukumbozwa kwezimoto kukhipha igesi ephumayo, ukwakheka kwe-solvent ye-organic kulula ukuyisebenzisa, kulula ukuyisebenzisa. enamathela in the ukwelashwa igesi udoti ngokuvamile ungasebenzisi le ndlela.
3. Windlela yokukhangisa igesi ye-aste
I-adsorption yokwelapha imfucuza kapende yopende ingahlukaniswa ibe i-chemical adsorption kanye ne-adsorption ebonakalayo, kodwa umsebenzi wamakhemikhali wegesi "benzene emithathu" uphansi, ngokuvamile awusebenzisi ukumuncwa kwamakhemikhali. Uketshezi olumuncayo olubonakalayo lumunca ukungaguquguquki kancane, futhi lumunca izingxenye ezinokuhambisana okuphezulu kokushisisa, ukupholisa nokusetshenziswa kabusha ukuze kuhlaziywe ukumuncwa kokugcwala kwendawo. Le ndlela isetshenziselwa ukususwa komoya, izinga lokushisa eliphansi, nokugxilisa ingqondo kancane. Ukufakwa kuyinkimbinkimbi, ukutshalwa kwezimali kukhulu, ukukhetha uketshezi lokumuncwa kunzima kakhulu, kukhona ukungcola okubili.
4. Ai-activated carbon adsorption + imishini ye-UV photocatalytic oxidation
(1): ngokuqondile ngokusebenzisa i-carbon activated direct adsorption ye-organic gas, ukufeza izinga lokuhlanzwa lika-95%, okokusebenza okulula, ukutshalwa kwezimali okuncane, ukusebenza okulula, kodwa kudingeka ngokuvamile esikhundleni sekhabhoni ecushiwe, ukugcwala okuphansi kokungcola, akukho ukululama.
5.Ai-activated carbon adsorption + imishini ye-plasma enezinga lokushisa eliphansi
Ngemuva kokucushwa kwe-carbon adsorption kuqala, bese kuba nokushisa okuphansi kwemishini yokucubungula igesi ye-plasma, kuzophatha izinga lokukhishwa kwegesi, indlela ye-ion ukusebenzisa i-plasma Plasma (ION plasma) ukucekelwa phansi kwegesi yemfucumfucu ephilayo, ukususa iphunga, ukubulala amagciwane, amagciwane, ukuhlanza umoya kuyisiqhathaniso sobuchwepheshe obuphezulu emhlabeni jikelele, ochwepheshe besayensi yezemvelo babizwa ngekhulu lesibili lekhulu leminyaka le-2 lesayensi yezemvelo. Isihluthulelo sobuchwepheshe ukukhishwa kwe-voltage ephezulu ye-pulse medium block ngendlela yenani elikhulu le-ion oxygen esebenzayo (i-plasma), ukwenziwa kusebenze kwegesi, ukukhiqiza zonke izinhlobo zama-radicals mahhala asebenzayo, njenge-OH, HO2, O, njll., i-benzene, i-toluene, i-xylene, i-ammonia, i-alkane kanye nokunye ukuwohloka kwegesi ye-organic waste kanye nokunye ukuwohloka kwe-organic waste gas, ukugwema ukusabela kwekhemikhali okuyinkimbinkimbi kanye nobuthi ukungcola kwesibili. Ubuchwepheshe bunezici zokusetshenziswa kwamandla okuphansi kakhulu, indawo encane, ukusebenza okulula nokugcinwa, futhi kufanelekile ikakhulukazi ekwelapheni kwamagesi ezingxenye ezihlukahlukene.
Bisifinyezo esifushane:
Manje kunezinhlobo eziningi zezindlela zokwelapha emakethe, ukuze kuhlangatshezwane namazinga okwelapha kazwelonke nawendawo, ngokuvamile sizokhetha izindlela ezimbalwa zokwelashwa ezihlanganiswe ukwelapha igesi ewudoti, ukukhetha ngokuvumelana nenqubo yazo yokwelapha yangempela yokwelashwa.
Isikhathi sokuthumela: Dec-28-2022
