1. Formation na isi components nke ịgba agba n'iyi 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 mkpofu gas si volatilization nke diluent, organic mgbaze adịghị agbakwunyere na agba n'elu, agba na ọgwụgwọ usoro ga-ahapụ organic mkpofu gas (na-akọ na narị otu narị ndị na-adịghị agbanwe agbanwe organic ogige, karị bụ nke alkane, alkanes, olefin, aromatic ogige,) mmanya, aldehyde, ketones, ester, ether, na ogige ndị ọzọ).
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 nọgidere na-agbanwe n'ime ụlọ spraying, 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-abụghị methane ngụkọta hydrocarbon), mmanya ether, ester organic mgbaze, n'ihi na iyuzucha olu nke ịgbasa ụlọ dị nnọọ ukwuu. buru ibu, yabụ mkpokọta mkpokọta gas na-ekpofu ahịhịa na-adị obere, na-abụkarị ihe dịka 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, na 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, mmiri agba film organic mgbaze na usoro nke ihicha na-agbanwe agbanwe, iji gbochie ikuku ime ụlọ organic ihe mgbaze mkpokọta mgbawa mberede, ikuku ụlọ kwesịrị na-aga n'ihu ikuku, mgbanwe ikuku ọsọ n'ozuzu ịchịkwa gburugburu. 0.2 m / s, iyuzucha iyuzucha mejupụtara na agba ụlọ iyuzucha mejupụtara, ma ọ dịghị nwere agba alụlụ, ngụkọta ịta nke organic mkpofu gas karịa ịgba ụlọ, dị ka iyuzucha olu, n'ozuzu na ịgba ụlọ iyuzucha gas ịta banyere 2 ugboro, nwere ike iru 300 mg/m3, na-agwakọtakarị ya na iyuzucha ụlọ ịgbasa mgbe ọgwụgwọ etiti gasịrị. 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 si n'ọnụ ụlọ ịgbasa, ụlọ ihicha, ọnụ ụlọ na-agwakọta agba na topface paint ụlọ ọgwụgwọ nsị mmiri bụ obere ntinye na nnukwu eruba, na isi ihe ndị na-emerụ emerụ bụ aromatic hydrocarbons, mmanya ethers na ester organic. ihe mgbaze. 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 a na usoro nwere ike izute ugbu a emission ụkpụrụ, ma n'efu gas bụ nnoo untreated diluted emission, na ngụkọta ego nke gas pollutants atara site a nnukwu ozu mkpuchi akara nwere ike dị elu dị ka narị otu narị tọn, nke na-akpata dị nnọọ njọ na-emerụ ahụ. ikuku.
Ugboro agba na ihe mgbaze organic - benzene, toluene, xylene bụ ihe mgbaze siri ike na-egbu egbu, na-arụ ọrụ ikuku na ogbako ahụ, ndị ọrụ mgbe iku ume iku ume nwere ike ibute nsị na-adịghị ala ala na nke na-adịghị ala ala, na-ebute mmebi nke sistemu akwara na sistem hematopoietic. , mkpụmkpụ ume iku ume dị elu (karịa 1500 mg / m3) nke benzene vapor, nwere ike ime ka anaemia aplastic, na-emekarị ka ọ bụrụ obere ntinye nke benzene vapor nwekwara ike ime ka agbọ agbọ, mgbaàmà nke 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 mmiri na-ekpo ọkụ 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 ọnụego 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 bụ nnoo diluted emission na-enweghị ọgwụgwọ, na ngụkọta ego nke gas pollutants atara site a nnukwu ozu mkpuchi akara nwere ike dị elu dị ka ọtụtụ narị tọn, nke na-akpata nnọọ njọ nsogbu 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, usoro mba ofesi tozuru oke bụ ibu ụzọ tinye uche (ya na wheel adsorption-desorption iji tinye mkpokọta ihe dị ka ugboro 15), iji belata mkpokọta ego a ga-agwọ, wee jiri usoro mbibi gwọọ ọrịa ahụ. gas mkpofu gbadoro anya. E nwere ụzọ ndị yiri ya na China, nke mbụ na-eji adsorption usoro (carbon na-arụ ọrụ ma ọ bụ zeolite dị ka adsorbent) maka ala ịta, ụlọ okpomọkụ ịgbasa agba n'efu gas adsorption, na elu okpomọkụ gas desorption, lekwasị n'efu gas iji 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 iko rotary electrostatic na ụzọ ndị ọzọ iji meziwanye ọnụọgụ nke mkpuchi, mmepe nke mkpuchi mmiri. na mkpuchi mkpuchi gburugburu ebe obibi ndị ọzọ.
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 Okpomọkụ ikpofu ihe dị elu, na ike na-arụ ọrụ dị 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 bụ. nke ọma.
※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 na-efe efe wepụ alụlụụ agba na soluble n'ime ihe mmiri, mgbe nzacha akọrọ, na ngwaọrụ mgbasa ozi carbon na-arụ ọrụ, dị ka carbon adsorption zuru ezu, wee wepụ (usoro iwepụ ya na uzuoku uzuoku, ọkụ ọkụ eletrik, nkwụsị nitrogen), mgbe nke ahụ gasịrị. ịdọpụ gas (ntụkwasị obi mụbara ọtụtụ oge) site n'iwepụ onye ofufe n'ime ngwa combustion nke catalytic combustion, combustion n'ime carbon dioxide na mmiri, mgbe ahapụchara.
2. Water spray + arụ ọrụ carbon adsorption na desorption + condensation usoro mgbake
Iji ụlọ elu na-agba agba iji wepụ alụlụ agba na soluble n'ime ihe mmiri, mgbe nzacha akọrọ, na ngwaọrụ mgbasa ozi carbon na-arụ ọrụ, dị ka carbon adsorption zuru ezu, wee wepụ (usoro iwepụ ya na uzuoku uzuoku, ọkụ eletrik, nkwụsị nitrogen), mgbe nhazi ihe mkpofu gas adsorption ịta condensation, condensate site na 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. Mana usoro ntinye ego a, oke ike oriri, ọnụ ahịa ọrụ, ịgbasa agba iyuzucha gas “benzene atọ” na ịta ikuku gas ndị ọzọ na-adịkarị ala karịa 300 mg / m3, itinye uche dị ala, oke ikuku (ụgbọ ala n'ichepụta agba ogbako ikuku na-adịkarị n'elu. 100000), na n'ihi na ụgbọ ala mkpuchi iyuzucha organic mgbaze mejupụtara, recycling mgbaze siri ike iji, na dị mfe na-emepụta nke abụọ mmetọ, otú mkpuchi na n'efu gas ọgwụgwọ n'ozuzu adịghị eji usoro a.
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): ozugbo 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 mgbe dochie na-arụ ọrụ carbon, ala ịta nke mmetọ, dịghị mgbake. (2) Usoro mgbasa ozi: organic gas na carbon adsorption na-arụ ọrụ, carbon carbon saturated air desorption na mweghachi.
5.Acarbon adsorption arụ ọrụ + akụrụngwa plasma dị ala
Mgbe etinyere carbon adsorption nke mbụ, mgbe ahụ na akụrụngwa plasma dị ala nke na-edozi gas na-emebi emebi, ga-agwọta ọkọlọtọ nke mkpofu gas, usoro ion bụ iji plasma Plasma (ION plasma) mmebi nke gas mkpofu ahịhịa, wepụ isi, gbuo nje bacteria, nje, sachaa. ikuku bụ ntụnyere mba ụwa dị elu, ndị ọkachamara nọ n'ụlọ na ná mba ọzọ ka a na-akpọ otu n'ime teknụzụ sayensị gburugburu ebe obibi anọ na narị afọ nke 21st. Isi ihe dị na teknụzụ bụ site na mwepu ihe mgbochi dị elu dị elu n'ụdị ọnụọgụ oxygen ion na-arụ ọrụ (plasma), nrụpụta gas, na-emepụta radicals n'efu dị iche iche, dị ka OH, HO2, O, wdg. ., benzene, toluene, xylene, amonia, alkane na ndị ọzọ organic n'efu gas mmebi, oxidation na ndị ọzọ mgbagwoju anụ ahụ na chemical Jeremaya mere, na site-ngwaahịa na-adịghị egbu egbu, zere mmetọ nke abụọ. 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
