1. Sebopeho le likarolo tse ka sehloohong tsa pente ea pente ea litšila tsa khase
Mokhoa oa ho penta o sebelisoa haholo mecheng, koloing, lisebelisoa tsa motlakase, lisebelisoa tsa lapeng, likepe, thepa ea ka tlung le liindasteri tse ling.
Penta lisebelisoa tse tala -— pente e entsoe ka lintho tse sa tsitsang le tse sa tsitsang, tse sa tsitsang ho kenyelletsa ntho ea filimi le ntho e thusang ea filimi, sesebelisoa sa ho hlapolla se sebelisoang ho hlapolla pente, ho fihlela sepheo sa bokaholimo bo boreleli le bo botle ba pente.
Ts'ebetso ea ho fafatsa pente haholo-holo e hlahisa moholi oa pente le tšilafalo ea khase ea manyolo, pente tlas'a ketso ea khatello e phahameng ka likaroloana, ha ho fafatsa, karolo ea pente ha ea ka ea fihla holim'a spray, ho ferekanngoa le ho phalla ha moea ho etsa moholi oa pente; khase ea litšila e tsoang ho volatilization ea diluent, organic solvent ha e khomaretsoe holim'a pente, pente le ts'ebetso ea ho folisa li tla lokolla khase ea litšila ea tlhaho (e tlalehiloeng ka makholo a metsoako ea lintho tse phelang, ka ho latellana ke ea alkane, alkanes, olefin, metsoako e nkhang hamonate, joala, aldehyde, ketone, ester, ether, le metsoako e meng).
2. Mohloli le litšobotsi tsa koloi barbotage ho qeta khase
Seboka sa ho penta ka koloi se lokela ho tsamaisa pente pele ho kalafo, electrophoresis le pente ea ho fafatsa holim'a mochini oa mosebetsi. Ts'ebetso ea pente e kenyelletsa ho penta ho fafatsa, ho phalla le ho omisa, lits'ebetsong tsena ho tla hlahisa khase ea litšila tsa tlhaho (VOCs) le spray spray, ka hona lits'ebetso tsena li hloka ho fafatsa kalafo ea litšila tsa phaposi ea pente.
(1) Khase ea litšila e tsoang ka phaposing ea pente ea spray
Bakeng sa ho boloka tikoloho ea ts'ebetso ea ho fafatsa, ho ea ka lipehelo tsa Molao oa Ts'ireletso ea Basebetsi le Bophelo bo Botle, moea o lokela ho fetoloa khafetsa ka phapusing ea ho fafatsa, 'me lebelo la phetoho ea moea le lokela ho laoloa ka har'a mefuta ea (0.25 ~ 1). ) Mof. Motsoako o ka sehloohong oa khase ea ho ntša moea ke motsoako oa motsoako oa pente ea spray, likarolo tsa eona tse ka sehloohong ke li-hydrocarbon tse nkhang hamonate (benzene tse tharo le non-methane total hydrocarbon), ether ea joala, ester organic solvent, hobane molumo oa mokelikeli oa phaposi ea spray o matla haholo. e kholo, ka hona, kakaretso ea khase ea litšila e ntšoa e tlase haholo, hangata e ka ba 100 mg/m3. Ho phaella moo, mouoane oa kamore ea pente hangata o na le moholi o fokolang oa pente o sa tšoaroeng ka ho feletseng, haholo-holo sebaka se omileng sa pente se tšoarang spray, moholi oa pente ka har'a mouoane, e ka 'na ea e-ba tšitiso ea ho senya phekolo ea khase, phekolo ea khase ea litšila e tlameha ho ba teng. pheko pele.
(2) Khase e litšila e tsoang phaposing ea ho omisa
Sefahleho pente ka mor'a ho fafatsa pele ho omisa, batla ho phalla moea, metsi pente filimi manyolo solvent ka tshebetso ya ho omisa e feto-fetohang, e le ho thibela moea, ka tlung organic solvent aggregation ho phatloha kotsi, moea kamoreng e lokela ho ba moea o tsoelang pele, fetola lebelo la moea ka kakaretso laola ho pota-pota. 0.2 m / s, sebopeho sa mosi oa mokelikeli le sebopeho sa kamore ea pente, empa ha e na moholi oa pente, kakaretso ea khase ea litšila ea lintho tse phelang ho feta phaposi ea ho fafatsa, ho ea ka molumo oa ho tsoa, ka kakaretso ka phaposing ea ho fafatsa, khatello ea khase e ka bang makhetlo a 2, e ka fihla ho 300 mg/m3, hangata e kopantsoe le mosi oa kamore ea spray kamora kalafo e bohareng. Ntle le moo, kamore ea pente, letamo la phepelo ea likhoerekhoere le holim'a metsi le tsona li lokela ho ntša khase e tšoanang ea litšila.
(3)Dkhase ea ho ntša metsi
Sebopeho sa khase ea litšila e omisang e rarahane ho feta, ho phaella ho solvent organic, karolo ea plasticizer kapa resin monomer le likarolo tse ling tse sa tsitsang, empa hape e na le lihlahisoa tsa ho bola ha mocheso, lihlahisoa tsa ho itšoara. Electrophoretic primer le solvent topcoat drying li na le khase e tsoang, empa phapang ea eona ea sebopeho le mahloriso e kholo.
※Likotsi tsa khase e tsoang ho pente ea spray:
Hoa tsebahala ho tsoa ka tlhahlobo ea hore khase ea litšila e tsoang phaposing ea ho fafatsa, kamore ea ho omisa, kamore ea ho kopanya pente le kamore ea ho hlatsoa likhoerekhoere ka holim'a sefahleho e tlase haholo le phallo e kholo, 'me likarolo tsa mantlha tsa litšila ke li-hydrocarbon tse nkhang hamonate, ethers ea joala le ester organic. solvents. Ho ea ka "Comprehensive Emission Standard for Air Pollution", bongata ba khase ena ea litšila hangata bo ka har'a moeli oa tlhahiso. E le ho sebetsana le litlhoko tsa sekhahla sa ho tsoa maemong a tloaelehileng, lifeme tse ngata tsa makoloi li sebelisa mokhoa oa ho ntša mocheso o phahameng. Le hoja mokhoa ona o ka finyella litekanyetso tsa hona joale tsa mocheso, empa khase ea litšila ha e le hantle e sa phekoloe e hlapolotsoeng, 'me palo eohle ea litšila tsa khase tse ntšoang ke mohala o moholo oa ho koahela' mele e ka ba holimo ho lithane tse makholo, e leng se bakang kotsi e tebileng ho sepakapaka.
Pente fog in the organic solvent —— benzene, toluene, xylene ke sehlapolli se matla se chefo, se sebetsang moeeng sebakeng sa pokello ea mesebetsi, basebetsi ka mor’a ho hema ka mor’a phefumoloho ba ka baka chefo e matla le e sa foleng, haholo-holo e baka tšenyo ea methapo e bohareng le tsamaiso ea mali. , inhalation ea nakoana e phahameng (ho feta 1500 mg/m3) ea mouoane oa benzene, e ka baka khaello ea mali ea aplastic, hangata ha motho a hema mouoane o tlaase oa benzene vapor e ka boela ea baka ho hlatsa, matšoao a methapo a kang pherekano.
※Khetho ea mokhoa oa ho phekola khase ea litšila bakeng sa pente le ho roala:
Ha u khetha mekhoa ea phekolo ea manyolo, lintlha tse latelang li lokela ho nahanoa ka kakaretso: mofuta le kholiso ea lintho tse silafatsang tsa tlhaho, mocheso oa mocheso oa motsoako le sekhahla sa phallo ea metsi, likarolo tsa lintho tse itseng, le boemo ba taolo ea tšilafalo e lokelang ho finyelloa.
1Srapella pente ka kalafo ea mocheso oa kamore
Khase e tsoang ka phapusing ea ho penta, kamore ea ho omisa, kamore ea ho kopanya pente le phaposi ea ho hloekisa likhoerekhoere tsa topcoat ke khase ea mocheso ea kamore ea khatello e tlase le phallo e kholo, 'me motsoako o ka sehloohong oa lintho tse silafatsang ke li-hydrocarbon tse nkhang hamonate, joala le ethers le li-solvents tsa ester. . Ho ea ka GB16297 "Comprehensive Emission Standard for Air Pollution", bongata ba khase ena ea litšila hangata bo ka har'a moeli oa tlhahiso. E le ho sebetsana le litlhoko tsa sekhahla sa ho tsoa maemong a tloaelehileng, lifeme tse ngata tsa makoloi li sebelisa mokhoa oa ho ntša mocheso o phahameng. Le hoja mokhoa ona o ka finyella litekanyetso tsa hona joale tsa mocheso, empa khase ea litšila e hlile e hlapolotsoe ka ntle ho phekolo, 'me palo eohle ea litšila tsa khase tse ntšoang ke mohala o moholo oa ho roala ka' mele o ka ba holimo ho lithane tse makholo, e leng se bakang kotsi e tebileng haholo. sepakapaka.
E le ho fokotsa ka ho feletseng ho tsoa ha litšila tsa khase, mekhoa e 'maloa ea phekolo ea khase e ka sebelisoang hammoho bakeng sa phekolo, empa litšenyehelo tsa phekolo ea khase e nang le molumo o phahameng oa moea li phahame haholo. Hajoale, mokhoa o tsoetseng pele oa kantle ho naha ke oa ho qala ho tsepamisa maikutlo (ka lebili la adsorption-desorption ho tsepamisa kakaretso ea makhetlo a ka bang 15), e le ho fokotsa palo eohle e lokelang ho phekoloa, ebe o sebelisa mokhoa o senyang ho phekola lefu la tsoekere. khase ea litšila e teteaneng. Ho na le mekhoa e ts'oanang Chaena, mokhoa oa pele oa tšebeliso ea adsorption (khabone e kentsoeng kapa zeolite joalo ka adsorbent) bakeng sa khatello e tlase, mocheso oa kamore ea ho fafatsa pente ea litšila tsa khase, e nang le mocheso o phahameng oa khase, khase ea litšila e kopaneng e sebelisa catalytic combustion kapa mokhoa o tsosolosang oa ho chesa mocheso phekolo. Mahloriso a tlaase, mocheso o tloaelehileng oa ho fafatsa pente litšila tsa khase ea likokoana-hloko mokhoa oa phekolo o ntse o ntlafatsoa, theknoloji ea malapeng nakong ea hona joale ha e hōlile, empa ke habohlokoa ho ela hloko. E le hore re hlile re fokotsa tšilafalo ea sechaba ea ho roala litšila tsa khase, re boetse re hloka ho rarolla bothata bo tsoang mohloling, joalo ka tšebeliso ea likopi tsa rotary electrostatic le mekhoa e meng ea ho ntlafatsa sekhahla sa tšebeliso ea liphahlo, nts'etsopele ea liphahlo tse thehiloeng metsing. le litlolo tse ling tsa tšireletso ea tikoloho.
2Dphekolo ea khase ea litšila
Ho omisa khase ea litšila ke ea likhase tse mahareng le tse phahameng tsa mocheso o phahameng oa litšila, tse loketseng kalafo ea mokhoa oa ho tuka. Karabelo ea mollo e na le likarolo tse tharo tsa bohlokoa: nako, mocheso, tšitiso, ke hore, ho chesa ha maemo a 3T. Ho sebetsa hantle ha khase ea litšila ha e le hantle ke tekanyo e lekaneng ea karabelo ea mollo 'me e itšetlehile ka taolo ea boemo ba 3T ea karabelo ea mollo. RTO e ka laola mocheso oa mollo (820 ~ 900 ℃) le nako ea ho lula (1.0 ~ 1.2s), le ho netefatsa hore tšitiso e hlokahalang (moea le lintho tse phelang li kopane ka botlalo), katleho ea phekolo e fihla ho 99%, 'me mocheso oa litšila o phahame, 'me tšebeliso ea matla a sebetsang e tlaase. Boholo ba lifeme tsa makoloi tsa Majapane tsa Japane le China hangata li sebelisa RTO ho phekola khase ea ho omisa (primer, coating medium, top coat drying). Mohlala, koloi ea baeti ea Dongfeng Nissan Huadu coating line e sebelisa RTO centralized treatment ea coating drying exhaust gase effect e ntle haholo, e fihlela litlhoko tsa melaoana ea tlhahiso. Leha ho le joalo, ka lebaka la matsete a phahameng a nako e le 'ngoe a thepa ea phekolo ea khase ea litšila ea RTO, ha e na chelete bakeng sa phekolo ea khase e litšila ka phallo e nyenyane ea khase ea litšila.
Bakeng sa mohala o phethiloeng oa tlhahiso ea ho roala, ha ho hlokahala lisebelisoa tse eketsehileng tsa phekolo ea khase ea litšila, ho ka sebelisoa tsamaiso ea catalytic combustion le regenerative thermal combustion system. The catalytic combustion system e na le matsete a manyane le tšebeliso e tlase ea matla a ho tuka.
Ka kakaretso, ts'ebeliso ea / platinamo joalo ka sesosa se ka fokotsa mocheso oa khase ea litšila tse ngata ho fihla ho 315 ℃. Sistimi ea catalytic combustion e ka sebelisoa bakeng sa kalafo ea khase e omisang ka kakaretso, haholo-holo e loketseng phepelo ea matla a ho omisa ka linako tse futhumatsang tsa motlakase, bothata bo teng ke mokhoa oa ho qoba ho hloleha ha chefo ea catalyst. Ho tsoa ho boiphihlelo ba basebelisi ba bang, bakeng sa pente e akaretsang holim'a pente e omisang khase ea litšila, ka ho eketsa litšila tsa khase le mehato e meng, e ka netefatsa hore bophelo ba catalyst ke lilemo tse 3 ~ 5; electrophoretic pente omisa litšila khase ho bonolo ho baka chefo catalyst, kahoo phekolo ea electrophoretic pente omisa litšila khase e lokela ho ba hlokolosi sebelisa catalytic combustion. Ts'ebetsong ea phekolo ea khase ea litšila le phetoho ea mohala oa ho roala koloi ea koloi ea Dongfeng, khase ea litšila ea electrophoretic primer drying e phekoloa ka mokhoa oa RTO, 'me khase ea litšila ea ho omisoa ha pente e ka holimo e tšoaroa ka mokhoa oa catalytic combustion,' me phello ea tšebeliso ke. molemo.
※Ts'ebetso ea kalafo ea khase e silafalitsoeng ka pente ea pente:
Sekema sa kalafo ea litšila tsa indasteri ea ho fafatsa se sebelisoa haholo bakeng sa kalafo ea khase ea ho penta kamoreng ea ho penta, kalafo ea litšila ea feme ea fenete, kalafo ea litšila tsa indasteri ea mochini, kalafo ea litšila ea feme ea guardrail, ho etsa likoloi le koloi ea 4S shop spray pente ea kamore ea litšila. Hona joale, ho na le mekhoa e fapaneng ea phekolo, e kang: mokhoa oa condensation, mokhoa oa ho monya, mokhoa oa ho chesa, mokhoa oa catalytic, mokhoa oa adsorption, mokhoa oa likokoana-hloko le mokhoa oa ion.
1. Wmokhoa oa ater spray + activated carbon adsorption le desorption + catalytic combustion
Ho sebelisa tora ea spray ho tlosa moholi oa pente le mokelikeli o qhibilihang ka har'a metsi, ka mor'a hore filthara e omeletseng e kene ka har'a sesebelisoa sa adsorption se entsoeng ka carbon, se kang carbon adsorption e tletseng, ebe e hlobolisa (mokhoa oa ho hlobolisa ka ho hlobola mouoane, ho futhumatsa motlakase, ho hlobolisa naetrojene), ka mor'a ho tlosa khase (makello a eketsehile ka makhetlo a mangata) ka ho tlosa fene ka har'a sesebelisoa se tukang se tukang, ho chesa carbon dioxide le metsi, ka mor'a ho tsoa.
2. Water spray + activated carbon adsorption le desorption + condensation recovery method
Ho sebelisa tora ea spray ho tlosa moholi oa pente le lintho tse qhibilihang ka har'a metsi, ka mor'a hore filthara e omeletseng e kene ka har'a sesebelisoa sa adsorption se entsoeng ka carbon, se kang se nang le carbon adsorption e tletseng, ebe ho hlobolisa (mokhoa oa ho hlobolisa ka ho hlobola mouoane, ho futhumatsa motlakase, ho hlobolisa naetrojene), ka mor'a ho sebetsana le condensation ea khase ea litšila, ho kopanya ka ho arohana ha lintho tsa bohlokoa tsa manyolo. Mokhoa ona o sebelisoa bakeng sa phekolo ea khase e litšila e nang le mahloriso a phahameng, mocheso o tlaase le molumo o tlaase oa moea. Empa mokhoa ona oa ho tsetela, tšebeliso e phahameng ea matla, litšenyehelo tsa ho sebetsa, pente ea "benzene e meraro" le khase e 'ngoe ea mouoane hangata e ka tlase ho 300 mg/m3, khatello e tlase, molumo o moholo oa moea (molumo oa moea hangata o ka holimo. 100000), 'me ka lebaka la hore mochini oa ho roala koloi o ntša motsoako oa motsoako oa motsoako, ho thata ho sebelisa sesebelisoa sa ho tsosolosa, hape ho bonolo ho hlahisa tšilafalo ea bobeli, ka hona, ho roala ka har'a phekolo ea khase ea litšila hangata ha ho sebelise mokhoa ona.
3. Wmokgoa wa aste adsorption
Adsorption ea pheko ea litšila ea pente e ka aroloa ka adsorption ea lik'hemik'hale le adsorption ea 'mele, empa ts'ebetso ea lik'hemik'hale ea "benzene" ea litšila tse tharo e tlase, hangata ha e sebelise ho monya lik'hemik'hale. Mokelikeli o monyang 'meleng o monya ho fokola ha matla, 'me o monya likaroloana ka kamano e phahameng bakeng sa ho futhumatsa, ho tsitsa le ho sebelisoa hape bakeng sa ho hlahloba ho monya ha saturation. Mokhoa ona o sebelisoa bakeng sa phalliso ea moea, mocheso o tlase le khatello e tlase. Ho kenya ho rarahane, letsete le leholo, khetho ea mokelikeli oa ho monya e thata haholo, ho na le tšilafalo e 'meli.
4. Akhabone adsorption + UV photocatalytic oxidation lisebelisoa
(1): ka ho toba ka k'habone activated ka ho toba adsorption ea khase manyolo, ho finyella sekhahla tlhoekiso ea 95%, thepa e bonolo, matsete a manyenyane, tshebetso loketseng, empa ho hlokahala hore hangata nka sebaka k'habone butswe, mahloriso tlaase ea litšila, ha ho ho hlaphoheloa. (2) Mokhoa oa Adsorption: khase ea tlhaho ka har'a adsorption ea khabone e kentsoeng, ho senyeha ha moea oa carbon saturated le ho tsosolosoa.
5.Aactivated carbon adsorption + thepa ea plasma ea mocheso o tlase
Ka mor'a hore ho sebelisoe carbon adsorption pele, ebe ka mocheso o tlase oa lisebelisoa tsa plasma tse sebetsanang le khase ea litšila, li tla tšoara maemo a ho tsoa ha khase, mokhoa oa ion ke ho sebelisa ho senyeha ha plasma (ION plasma) ea khase ea litšila, ho tlosa monko, ho bolaea libaktheria, likokoana-hloko, ho hloekisa. moea ke papiso ea machaba ea theknoloji e phahameng, litsebi tsa lehae le linaheng tse ling li bitsoa e 'ngoe ea theknoloji e mene ea saense ea tikoloho lekholong la bo21 la lilemo. Senotlolo sa mahlale a morao-rao ke ka phallo e phahameng ea "pulse medium block discharge" ka sebopeho sa palo e kholo ea oksijene e sebetsang (plasma), ts'ebetso ea khase, e hlahisa mefuta eohle ea li-radicals tsa mahala tse kang OH, HO2, O, joalo-joalo. ., benzene, toluene, xylene, ammonia, alkane le tse ling tse senyang khase ea tlhaho, oxidation le liphetoho tse ling tse rarahaneng tsa 'mele le lik'hemik'hale, le lihlahisoa tse se nang chefo, li qoba tšilafalo ea bobeli. Theknoloji e na le litšobotsi tsa tšebeliso e tlaase haholo ea matla, sebaka se senyenyane, ts'ebetso e bonolo le tlhokomelo, 'me e loketse ka ho khetheha bakeng sa phekolo ea likhase tse sa tšoaneng tsa likarolo.
Brief summary:
Hona joale ho na le mefuta e mengata ea mekhoa ea phekolo 'marakeng, e le ho finyella litekanyetso tsa phekolo ea naha le ea lehae, hangata re tla khetha mekhoa e mengata ea phekolo e kopantsoeng ho tšoara khase ea litšila, ho khetha ho latela mokhoa oa bona oa sebele oa phekolo bakeng sa phekolo.
Nako ea poso: Dec-28-2022
