1. Nhazi na isi ihe nke ịgba agba agba n'efu gas
A na-eji usoro eserese eme ihe na igwe, ụgbọ ala, ngwa eletriki, ngwa ụlọ, ụgbọ mmiri, ngwá ụlọ na ụlọ ọrụ ndị ọzọ.
Ihe eji agba agba agba -- agba bụ nke na-adịghị agbanwe agbanwe na nke na-adịghị agbanwe agbanwe, nke na-adịghị agbanwe agbanwe gụnyere ihe nkiri ihe nkiri na ihe ihe nkiri inyeaka, onye na-emepụta ihe na-agbanwe agbanwe na-eji agbaze agba, iji nweta nzube nke elu agba dị nro ma mara mma.
The agba ịgba usoro tumadi na-emepụta agba alụlụ na organic n'efu gas mmetọ, agba n'okpuru omume nke elu mgbali n'ime ahụ, mgbe spraying, akụkụ nke agba eruteghi n'elu ịgba, mgbasa na airflow na-etolite agba alụlụ; organic n'efu gas si volatilization nke diluent, organic ihe mgbaze adịghị agbakwunyere na agba elu, agba na ọgwụgwọ usoro ga-ahapụ organic mkpofu gas (nke na-akọ na narị narị volatile organic ogige, karị bụ nke alkane, alkanes, olefin, aromatic ogige, mmanya, aldehyde, ketones, ester, ether, na ndị ọzọ ogige).
2. Isi mmalite na e ji mara ụgbọala mkpuchi iyuzucha gas
Ụlọ ọrụ eserese ụgbọ ala kwesịrị iduzi agba tupu ọgwụgwọ, electrophoresis na ịgba agba na workpiece. Agba usoro na-agụnye ịgba eserese, eruba na ihicha, na ndị a usoro ga-emepụta organic n'efu gas (VOCs) na ịgba ịgba, otú ndị a usoro mkpa ịgba agba agba ụlọ mkpofu gas ọgwụgwọ.
(1) gas na-ekpofu ihe site n'ọnụ ụlọ agba agba
Iji nọgide na-arụ ọrụ na gburugburu ebe obibi nke spraying, dị ka ndokwa nke Labor Safety na Health Law, ikuku kwesịrị ịgbanwe mgbe niile na spraying ụlọ, na ikuku mgbanwe ọsọ kwesịrị ịchịkwa n'ime nso nke (0.25 ~ 1) m / s. Isi ihe mejupụtara nke ikuku iyuzucha gas bụ ihe mgbaze organic nke agba agba, ihe ndị bụ isi ya bụ hydrocarbons aromatic (benzene atọ na ndị na-abụghị methane ngụkọta hydrocarbon), ether mmanya, ester organic mgbaze, n'ihi na ikpochapụ olu nke ịgbasa ụlọ dị nnọọ ukwuu, ya mere mkpokọta mkpokọta nke organic mkpofu gas na-ahapụ dị ala, na-abụkarị ihe dị ka 100 mg / m3. Ke adianade do, iyuzucha nke agba ụlọ na-enwekarị obere ego nke kpamkpam untreated agba foogu, karịsịa akọrọ agba ịgbasa ịgbasa ụlọ, agba foogu na iyuzucha, nwere ike ịghọ ihe mgbochi n'efu ọgwụgwọ gas, n'efu ọgwụgwọ ga-abụ pretreatment.
(2) gas na-ekpofu ihe site na ime ụlọ ihicha
Ihu agba mgbe spraying tupu ihicha, chọrọ eruba ikuku, udu mmiri paint film organic mgbaze na usoro nke ihicha ndị na-agbanwe agbanwe, iji gbochie ikuku ime ụlọ organic ihe mgbaze mkpokọta mgbawa mberede, ikuku ụlọ kwesịrị ịdị na-aga n'ihu ikuku, mgbanwe ikuku ọsọ n'ozuzu na-achịkwa gburugburu 0.2 m / s, iyuzucha iyuzucha mejupụtara na agba ụlọ iyuzucha mejupụtara, ma ọ dịghị nwere agba alụlụ, ngụkọta ịta nke organic mkpofu n'ime ụlọ ịgbasa gas ka iyuzucha ụlọ karịa iyuzucha ụlọ n'ime ikuku gas ka iyuzucha ụlọ karịa iyuzucha ụlọ. ugboro, nwere ike iru 300 mg/m3, na-emekarị na-agwakọta na spray room iyuzucha mgbe centralized ọgwụgwọ. Na mgbakwunye, ụlọ agba, ọdọ mmiri na-agba agba n'elu ala kwesịkwara igbapu gas n'efu yiri nke ahụ.
(3)Dgas na-ekpo ọkụ
Ngwakọta nke gas na-ekpochapụ ihicha bụ ihe mgbagwoju anya, na mgbakwunye na ihe mgbaze organic, akụkụ nke plasticizer ma ọ bụ resin monomer na ihe ndị ọzọ na-agbanwe agbanwe, ma nwekwara ngwaahịa decomposition thermal, ngwaahịa mmeghachi omume. Electrophoretic primer na ihe mgbaze ụdị topcoat ihicha nwere iyuzucha gas mwepu, ma ya mejupụtara na ịta iche iche bụ nnukwu.
※Ihe ize ndụ nke ịgbasa gas agba agba:
A maara site na nyocha ahụ na gas na-ekpofu ọkụ site na ọnụ ụlọ ịgbasa, ụlọ ihicha, ụlọ na-agwakọta agba na topface paint ụlọ ọgwụgwọ nsị mmiri bụ obere ntinye na nnukwu eruba, na isi ihe ndị na-emerụ ahụ bụ aromatic hydrocarbons, mmanya ethers na ester organic solvents. Dị ka "Comprehensive Emission Standard for Air Pollution" si kwuo, mkpokọta gas mkpofu ndị a na-adịkarị n'ime oke ikuku. Iji nagide ihe achọrọ n'ụgwọ ikuku n'ụkpụrụ, ọtụtụ ụlọ ọrụ ụgbọ ala na-agbaso usoro nke ikuku dị elu. Ọ bụ ezie na usoro a nwere ike izute ụkpụrụ emission dị ugbu a, ma gas na-efunahụ bụ n'ezie untreated diluted emission, na ngụkọta ego nke gas pollutants a napụtara site a nnukwu ahu mkpuchi akara nwere ike dị elu dị ka narị otu narị tọn, nke na-akpata nnukwu nsogbu na ikuku.
Akpụkpọ anụ na ihe mgbaze organic - benzene, toluene, xylene bụ ihe mgbaze siri ike na-egbu egbu, na-arụ ọrụ na ikuku na ogbako ahụ, ndị ọrụ mgbe ikuku iku ume iku ume nwere ike ịkpata nsi buru ibu na nke na-adịghị ala ala, na-ebute mmebi nke sistemụ akwara na sistem hematopoietic, obere inhalation dị elu (ihe karịrị 1500 mg / m3) nke benzene a na-eme ka ịta ahụhụ dị ala, nwere ike ime ka ịta ahụhụ dị ala. vapor benzene nwekwara ike ịkpata vomiting, mgbaàmà akwara ozi dị ka mgbagwoju anya.
※Nhọrọ nke usoro ọgwụgwọ gas mkpofu maka ịgba agba na mkpuchi:
N'ịhọrọ usoro ọgwụgwọ organic, ekwesịrị ịtụle ihe ndị na-esonụ n'ozuzu: ụdị na ntinye nke ihe ndị na-emetọ ihe ndị na-emepụta ihe, okpomọkụ na-ekpochapụ organic na mwepu na-asọpụta, ihe dị n'ime ihe dị n'ime ya, na ọkwa nchịkwa mmetọ nke kwesịrị inweta.
1Skpee ekpere agba na ụlọ okpomọkụ ọgwụgwọ
The iyuzucha gas si na eserese ụlọ, ihicha ụlọ, agba agwakọta ụlọ na topcoat nsị mmiri n'ime ụlọ bụ ụlọ okpomọkụ iyuzucha gas nke ala ịta na nnukwu eruba, na isi mejupụtara nke mmetọ bụ aromatic hydrocarbons, mmanya na ethers na ester organic solvents. Dị ka GB16297 “Comprehensive Emission Standard for Air Pollution” si kwuo, mkpokọta gas mkpofu ndị a na-adịkarị n'ime oke ikuku. Iji nagide ihe achọrọ n'ụgwọ ikuku n'ụkpụrụ, ọtụtụ ụlọ ọrụ ụgbọ ala na-agbaso usoro nke ikuku dị elu. Ọ bụ ezie na nke a na usoro nwere ike izute ugbu a emission ụkpụrụ, ma n'efu gas na-nnoo diluted emission na-enweghị ọgwụgwọ, na ngụkọta ego nke gas pollutants atara site a nnukwu ahu mkpuchi akara nwere ike dị elu dị ka narị otu narị tọn, nke na-akpata nnọọ oké njọ na ikuku.
Iji belata n'ụzọ bụ isi nke mmetọ ikuku iyuzucha gas, enwere ike ijikọ ọtụtụ ụzọ ọgwụgwọ iyuzucha gas maka ọgwụgwọ, mana ọnụ ahịa ọgwụgwọ ikuku gas na oke ikuku dị oke elu. Ka ọ dị ugbu a, ụzọ mba ọzọ tozuru etozu bụ ibu ụzọ tinye uche (ya na wheel adsorption-desorption na-etinye uche na ngụkọta nke ihe dị ka ugboro 15), iji belata mkpokọta ego a ga-agwọ, wee jiri usoro mbibi na-agwọ gas mkpofu. Enwere ụzọ ndị yiri ya na China, nke mbụ na-eji usoro mgbasa ozi (carbon na-arụ ọrụ ma ọ bụ zeolite dị ka adsorbent) maka itinye uche dị ala, ụlọ okpomọkụ na-agba agba agba n'efu gas adsorption, na nnukwu okpomọkụ gas desorption, ihe mkpofu gas na-eji catalytic combustion ma ọ bụ regenerative thermal combustion usoro maka ọgwụgwọ. A na-emepe itinye uche dị ala, ịgba agba okpomọkụ nkịtị n'efu gas usoro ọgwụgwọ ndu, teknụzụ ụlọ n'oge ugbu a etolitebeghị, mana ọ bara uru ịṅa ntị. Iji belata n'ezie mmetọ ọha na eze nke mkpuchi ihe mkpofu gas, anyị kwesịkwara iji dozie nsogbu ahụ site na isi iyi, dị ka iji electrostatic rotary cups na ụzọ ndị ọzọ iji meziwanye ọnụego ojiji nke mkpuchi, mmepe nke mkpuchi mmiri na ihe ndị ọzọ na-echebe gburugburu ebe obibi.
2Dọgwụgwọ gas n'efu
Ikpochapụ gas na-ekpofu bụ nke ọkara na nnukwu ịta ahụhụ dị elu nke ikuku gas na-ekpo ọkụ, nke kwesịrị ekwesị maka usoro ọkụ ọkụ. Mmeghachi omume combustion nwere ihe atọ dị mkpa: oge, okpomọkụ, ọgba aghara, ya bụ, ọkụ nke ọnọdụ 3T. Ịrụ ọrụ nke ọgwụgwọ gas n'efu bụ n'ezie ogo zuru oke nke mmeghachi omume combustion ma dabere na njikwa ọnọdụ 3T nke mmeghachi omume combustion. RTO nwere ike ịchịkwa combustion okpomọkụ (820 ~ 900 ℃) na ọnụnọ oge (1.0 ~ 1.2s), na hụ na mkpa ọgbaghara (ikuku na organic okwu na-n'ụzọ zuru ezu agwakọta), ọgwụgwọ arụmọrụ bụ ruo 99%, na n'efu okpomọkụ ọnụego bụ elu, na-arụ ọrụ ike oriri bụ ala. Ọtụtụ ụlọ ọrụ ụgbọ ala ndị Japan dị na Japan na China na-ejikarị RTO na-agwọta ikuku ikuku nke ihicha (primer, ọkara mkpuchi, ihicha akwa mkpuchi). Ka ihe atụ, Dongfeng Nissan njem ụgbọ ala Huadu mkpuchi akara iji RTO centralized ọgwụgwọ nke mkpuchi ihicha iyuzucha gas mmetụta dị nnọọ mma, zuru ezu izute chọrọ nke emission ụkpụrụ. Otú ọ dị, n'ihi nnukwu ntinye ego nke otu oge nke ngwá ọrụ ọgwụgwọ gas na-ekpofu ọkụ nke RTO, ọ bụghị akụ na ụba maka ọgwụgwọ gas na-ekpofu ihe na obere ikuku gas na-asọ oyi.
Maka ahịrị mmepụta ihe mkpuchi emechara, mgbe a na-achọ ihe mgbakwunye gas na-ekpofu ihe, enwere ike iji usoro mgba ọkụ catalytic na usoro ọkụ ọkụ na-emegharị ahụ. Sistemụ combustion nke catalytic nwere obere ntinye ego yana obere ike ọkụ ọkụ.
N'ikwu okwu n'ozuzu, iji / platinum dị ka ihe na-akpata nwere ike ibelata okpomọkụ nke oxidizing ọtụtụ gas na-ekpofu ihe na ihe dịka 315 ℃. Enwere ike iji usoro combustion nke catalytic maka ọgwụgwọ gas na-ekpochapụ n'ozuzu, karịsịa maka ọkụ ọkụ na-ekpo ọkụ na-eji oge ọkụ eletrik, nsogbu dị ugbu a bụ otu esi zere ọdịda nke nsị nsị. Site na ahụmahụ nke ụfọdụ ndị ọrụ, n'ihi na n'ozuzu elu agba ihicha gas n'efu, site na-abawanye n'efu gas filtration na ndị ọzọ jikoro, nwere ike hụ na ndụ nke catalyst bụ 3 ~ 5 afọ; Electrophoretic agba ihicha n'efu gas dị mfe na-akpata catalyst nsi, otú ọgwụgwọ nke electrophoretic agba ihicha gas gas kwesịrị ịkpachara anya iji catalytic combustion. Na usoro nke n'efu gas ọgwụgwọ na mgbanwe nke Dongfeng azụmahịa ụgbọ ozu mkpuchi ahịrị, a na-emeso gas efu nke electrophoretic primer ihicha site RTO usoro, na n'efu gas nke top agba ihicha na-emeso catalytic combustion usoro, na ojiji mmetụta dị mma.
※Usoro ọgwụgwọ gas n'iyi ihe mkpuchi fesa:
A na-ejikarị usoro ịgbasa ụlọ ọrụ na-ekpofu gas maka ịgbasa ihe osise ime ụlọ mkpofu gas ọgwụgwọ, arịa ụlọ mmepụta ihe na-ekpofu gas ọgwụgwọ, igwe na-emepụta ụlọ ọrụ na-ekpofu gas ọgwụgwọ, ụlọ ọrụ nchekwa nchekwa gas na-ekpofu gas, nrụpụta ụgbọala na ụgbọ ala 4S ụlọ ahịa ịgbasa agba ụlọ mkpofu gas ọgwụgwọ. Ka ọ dị ugbu a, e nwere usoro ọgwụgwọ dị iche iche, dị ka: usoro condensation, usoro absorption, usoro combustion, usoro catalytic, usoro mgbasa ozi, usoro ndu na usoro ion.
1. Water spray method + arụ ọrụ carbon adsorption na desorption + catalytic combustion
Iji ụlọ elu ịgbasa iji wepụ alụlụ agba na soluble n'ime ihe mmiri, mgbe nzacha akọrọ, na ngwaọrụ adsorption carbon na-arụ ọrụ, dị ka carbon adsorption na-arụ ọrụ zuru ezu, wee wepụ (usoro nkwụsịtụ na uzuoku uzuoku, ọkụ ọkụ, nitrogen stripping), mgbe gas na-ewepụ (ntụkwasị obi mụbara ọtụtụ oge) site n'iwepụ onye ofufe n'ime ngwaọrụ combustion catalytic n'ime carbon dioxide, mmiri ọkụ.
2. Water spray + arụ ọrụ carbon adsorption na desorption + condensation usoro mgbake
Iji ịgba ụlọ elu wepụ agba alụlụ na soluble na mmiri ihe, mgbe akọrọ nyo, na-arụ ọrụ carbon adsorption ngwaọrụ, dị ka activated carbon adsorption zuru, mgbe ahụ, na-n'ike (n'ịnyịnya usoro na uzuoku stripping, electric kpo oku, nitrogen stripping), mgbe nhazi ihe mkpofu gas adsorption ịta condensation, condensate site nkewa mgbake nke bara uru organic okwu. A na-eji usoro a eme ihe maka ọgwụgwọ gas na-ekpofu ihe na nnukwu ntinye uche, obere okpomọkụ na obere ikuku ikuku. Ma usoro a itinye ego, elu ike oriri, ọrụ na-eri, ịgba agba iyuzucha gas "atọ benzene" na ndị ọzọ iyuzucha gas ịta bụ n'ozuzu ala karịa 300 mg / m3, obere ịta, nnukwu ikuku olu (automobile n'ichepụta paint ogbako ikuku olu mgbe n'elu 100000), na n'ihi na ụgbọ ala mkpuchi iyuzucha organic ihe mgbaze mejupụtara, recycling mgbaze siri ike iji, na mfe iji na-emepụta ihe n'efu na usoro nke abụọ.
3. Waste gas adsorption usoro
Enwere ike kewaa mgbasa ozi ịhịa aka n'ahụ n'efu gas ka ọ bụrụ mgbasa ozi kemịkalụ na mgbasa ozi anụ ahụ, mana ọrụ kemịkalụ gas na-ekpofu “benzene atọ” dị obere, n'ozuzu anaghị eji kemịkal absorption. Mmiri na-amịkọrọ anụ ahụ na-amịkọrọ obere ihe na-agbanwe agbanwe, ọ na-etinyekwa ihe ndị ahụ nwere njikọ dị elu maka ikpo ọkụ, jụrụ oyi na iji mee ihe maka nyochaa nnabata saturation. A na-eji usoro a maka mbugharị ikuku, obere okpomọkụ, na obere ntinye uche. Echichi ahụ dị mgbagwoju anya, ntinye ego buru ibu, nhọrọ nke ịmịnye mmiri na-esi ike karị, enwere mmetọ abụọ
4. Acarbon adsorption arụ ọrụ + UV photocatalytic oxidation akụrụngwa
(1): kpọmkwem site na-arụ ọrụ carbon kpọmkwem adsorption nke organic gas, iji nweta ịdị ọcha ọnụego nke 95%, mfe ngwá, obere ego, adaba ọrụ, ma mkpa mgbe dochie arụ ọrụ carbon, ala ịta nke mmetọ, dịghị mgbake.
5.Acarbon adsorption arụ ọrụ + akụrụngwa plasma dị ala
Mgbe arụ ọrụ carbon adsorption mbụ, mgbe ahụ na obere okpomọkụ plasma ngwá ọrụ nhazi gas gas, ga-emeso ọkọlọtọ nke gas na-ahapụ, ion usoro bụ iji plasma Plasma (ION plasma) mmebi nke organic mkpofu gas, wepụ isi ísì, gbuo nje bacteria, nje, sachaa ikuku bụ a elu-tech mba ntụnyere, ndị ọkachamara n'ụlọ na ná mba ọzọ na-akpọ otu n'ime anọ isi teknụzụ sayensị gburugburu ebe obibi na narị afọ nke 21st. Isi ihe na teknụzụ bụ site na elu voltaji usu ọkara mgbochi mwepu n'ụdị a ọnụ ọgụgụ buru ibu nke nọ n'ọrụ ion oxygen (plasma), na gas ebighị, na-emepụta ihe niile dị iche iche nke na-arụ ọrụ free radicals, dị ka OH, HO2, O, wdg, benzene, toluene, xylene, amonia, alkane na ndị ọzọ organic n'efu gas mmebi, oxidation na-abụghị nke anụ ahụ mmeghachi omume, nke abụọ na-adịghị arụ ọrụ nke radicals. mmetọ. Teknụzụ nwere njirimara nke oriri ike dị oke ala, obere oghere, ọrụ dị mfe na mmezi, yana dabara adaba maka ọgwụgwọ nke gas dị iche iche.
Bnchịkọta rief:
Ugbu a, e nwere ọtụtụ ụdị ọgwụgwọ usoro na ahịa, iji na-ezute mba na mpaghara usoro ọgwụgwọ, anyị na-emekarị na-ahọrọ ọtụtụ usoro ọgwụgwọ jikọtara na-emeso ndị na-ekpofu gas gas, ịhọrọ n'ahịrị na ha onwe ha n'ezie usoro ọgwụgwọ maka ọgwụgwọ.
Oge nzipu: Dec-28-2022
