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; organic litšila khase ho tloha volatilization ea diluent, organic solvent ha e khomaretsoe holim'a pente, pente le ho folisa tshebetso tla lokolla manyolo litšila khase (e tlalehiloeng makholo a sa tsitsang metsoako ea lintho tse phelang, ka ho latellana ke ea alkanes, alkanes, olefin, metsoako e nkhang hamonate, joala, aldehyde, ketone, metsoako e meng, ester).
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
E le ho boloka tikoloho ea ho sebetsa ea ho fafatsa, ho ea ka litokisetso tsa Molao oa Tšireletso ea Basebetsi le Bophelo bo Botle, moea o lokela ho fetoloa ka ho tsoelang pele ka kamoreng ea ho fafatsa, 'me lebelo la phetoho ea moea le lokela ho laoloa ka har'a (0.25 ~ 1) m / s. Motsoako o ka sehloohong oa khase e tsoang moeeng ke motsoako oa tlhaho oa pente ea spray, likarolo tsa eona tsa mantlha 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 moholo haholo, ka hona, kakaretso ea khase ea litšila e ntšoa e tlase haholo, hangata e ka ba 100 mg/mm. Ho phaella moo, mouoane oa kamore ea pente hangata o na le moholi o fokolang oa pente o sa sebetsoeng ka ho feletseng, haholo-holo sebaka se omeletseng sa pente se ts'oaroang, 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 lokela ho ba pretreatment.
(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 feto-fetoha, e le ho thibela moea ka tlung manyolo solvent aggregation kotsi, moea kamoreng e lokela ho ba moea o tsoelang pele, fetola lebelo la moea ka kakaretso laola ho pota 0.2 m/s, ho qeta ho qeta ho tsitlella sebopeho le pente kamore ea ho qeta ha e na mokelikeli o feletseng oa pente, empa mokelikeli oa pente ha o na mokelikeli o feletseng oa pente, Ka kamoreng, ho ea ka molumo oa ho ntša metsi, hangata ka kamoreng ea ho fafatsa mocheso oa khase o ka bang makhetlo a 2, o ka fihla ho 300 mg / m3, hangata o kopantsoe le mouoane oa kamoreng ea spray ka mor'a phekolo 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 hore khase ea litšila e tsoang phaposing ea ho fafatsa, phaposi ea ho omisa, kamore ea ho kopanya pente le phaposi ea ho hloekisa likhoerekhoere ka holim'a sefahleho e tlase haholo le phallo e kholo, 'me likarolo tsa mantlha tsa litšila ke li-hydrocarbon tse nkhang hamonate, li-ether tsa joala le li-solvents tsa ester. 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, tse bakang kotsi e tebileng haholo moeeng.
Pente fog in the organic solvent -- benzene, toluene, xylene ke solvent e matla e chefo, e sebetsang moeeng sebakeng sa workshop, basebetsi ka mor'a ho hema ka mor'a ho hema ho ka baka chefo e matla le e sa foleng, haholo-holo ho baka tšenyo ea methapo ea methapo le tsamaiso ea mali, nako e khutšoanyane ea inhalation e phahameng (ho feta 1500 mg / m3 ea mouoane o ka bakang khaello ea mali e tlaase, anemia e tlaase ea benzene e ka bakang khaello ea mali e tlaase). Mouoane oa benzene o ka boela oa 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 kamoreng ea ho penta, kamore ea ho omisa, kamore ea ho kopanya pente le kamore ea ho hloekisa likhoerekhoere tsa topcoat ke mocheso oa kamore ea mocheso oa mocheso o tlase le phallo e kholo, 'me motsoako o ka sehloohong oa litšila 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 koahela' mele e ka ba lithane tse makholo, tse bakang kotsi e tebileng haholo ho 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. Hona joale, mokhoa oa linaheng tse ling o hōlileng tsebong ke oa ho qala ho tsepamisa mohopolo (ka lebili la adsorption-desorption ho tsepamisa mohopolo ka 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 khase ea litšila e teteaneng. Ho na le mekhoa e tšoanang Chaena, mokhoa oa pele oa ho sebelisa adsorption (khabone e kentsoeng kapa zeolite e le adsorbent) bakeng sa mahloriso a tlase, mocheso oa kamore ea ho fafatsa pente ea litšila tsa khase, ka mocheso o phahameng oa khase, ho sebelisa khase ea litšila ho sebelisa catalytic combustion kapa mokhoa o tsosolosang oa ho chesa mocheso bakeng sa 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 electrostatic rotary le mekhoa e meng ea ho ntlafatsa sekhahla sa tšebeliso ea liphahlo, nts'etsopele ea liphahlo tse thehiloeng metsing le lisebelisoa 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 ho feletseng), 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 mochine 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 holimo e tšoaroa ka mokhoa oa ho chesa,' me phello ea tšebeliso e ntle.
※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 lintho tse qhibilihang ka har'a metsi, ka mor'a filthara e omileng, ka sesebelisoa sa carbon adsorption, joalo ka k'habone adsorption e tletseng, ebe e hlobolisa (mokhoa oa ho hlobolisa ka mouoane, ho futhumala ha motlakase, ho hlobolisa naetrojene), ka mor'a hore khase ea ho hlobolisa (mahloriso a eketsehile ka makhetlo a mangata) ka ho phunya fene ka har'a mochine oa carbon, combulytic, catambulytics. ka mora ho tsoa.
2. Water spray + activated carbon adsorption le desorption + condensation recovery method
Ho sebelisa spray tora ho tlosa pente moholi le qhibilihang ka har'a lintho tse bonahalang tse metsi, ka mor'a hore filtara omileng, ka activated carbon adsorption sesebediswa, tse kang activated carbon adsorption e tletseng, ka nako eo ho hlobolisa (ho hlobolisa mokhoa le mouoane hlobolisa, futhumatsang ea motlakase, naetrojene hlobolisa), ka mor'a ho sebetsana le litšila khase adsorption mahloriso condensation, condensate ho hlaphoheloa bohlokoa ka karohano. 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 ts'ebetso, "benzene e meraro" ea pente le khase ea mouoane hangata e ka tlase ho 300 mg/m3, khatello e tlase, molumo o moholo oa moea (molumo oa moea hangata o feta 100000), hape hobane ho thata ho sebelisa mokelikeli oa mokelikeli oa motlakase ho etsa hore ho be bonolo ho e sebelisa. barbotage ka pheko khase litšila ka kakaretso u se ke ua sebelisa 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 adsorption e tobileng ea khase ea tlhaho, ho finyella tekanyo ea tlhoekiso ea 95%, lisebelisoa tse bonolo, letsete le lenyenyane, ts'ebetso e bonolo, empa hangata ho hlokahala hore ho nkeloe sebaka sa khabone e kentsoeng, khatello e tlaase ea litšila, ha ho na ho hlaphoheloa.
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 ntša khase, mokhoa oa ion ke ho sebelisa plasma ea plasma (ION plasma) ho senyeha ha khase ea litšila, ho tlosa monko, ho bolaea libaktheria, livaerase, ho hloekisa moea ke papiso ea machaba ea theknoloji e phahameng, e bitsoang litsebi tsa saense ea lehae le linaheng tse ling. Senotlolo sa theknoloji ke ka ho ntša metsi a mangata a pulse medium block ka mokhoa oa palo e kholo ea oksijene e sebetsang (plasma), ts'ebetso ea khase, e hlahisang mefuta eohle ea li-radicals tsa mahala, tse kang OH, HO2, O, joalo-joalo, benzene, toluene, xylene, ammonia, alkane le tse ling tsa organic waste degradation le ho qoba ho senyeha ha lik'hemik'hale le lintho tse ling tse rarahaneng le tse ling 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
