Zvinhu zvinosvibisa zvinoburitswa zvinonyanya kutaurwa ndeizvi: mhute yependi uye zvinonyungudutsa zvakasikwa zvinogadzirwa nependi yekupfapfaidza, uye zvinonyungudutsa zvakasikwa zvinogadzirwa kana kuomesa mhepo. Mhute yependi inonyanya kubva muchikamu chepurasitiki inonyungudutsa mumhepo inopfapfaidza, uye maumbirwo ayo anoenderana nepurasitiki inoshandiswa. Zvinonyungudutsa zvakasikwa zvinonyanya kubva muzvinonyungudutsa uye zvinonyungudutsa mukushandiswa kwepurasitiki, zvizhinji zvacho zvinobuda mumhepo inopfapfaidza, uye zvinonyungudutsa zvikuru ixylene, benzene, toluene nezvimwewo. Saka, sosi huru yegesi inokuvadza inoburitswa mupurasitiki imukamuri yekupfapfaidza, imba yekuomesa uye imba yekuomesa.
1. Nzira yekurapa gasi remarara yemutsetse wekugadzira mota
1.1 Chirongwa chekurapa gasi remarara reorganic panguva yekuomesa
Gasi rinoburitswa kubva mu electrophoresis, medium coating uye surface coating drying room nderegasi rinopisa zvakanyanya uye rine huwandu hwakawanda hwemarara, iro rakakodzera nzira yekupisa. Parizvino, matanho anowanzo shandiswa ekurapa gasi rinorasa marara mukuita kwekuomesa anosanganisira: regenerative thermal oxidation technology (RTO), regenerative catalytic combustion technology (RCO), uye TNV recovery thermal incineration system.
1.1.1 Tekinoroji yekuchengetera kupisa yemhando yethermal oxidation (RTO)
Thermal oxidator (Regenerative Thermal Oxidizer, RTO) chishandiso chekuchengetedza nharaunda chinochengetedza simba rekurapa gasi remarara rinoshanduka nepakati nepasi. Chakakodzera huwandu hwakawanda, huwandu hushoma, chakakodzera huwandu hwegasi remarara eorganic pakati pe100 PPM-20000 PPM. Mutengo wekushanda wakaderera, kana huwandu hwegasi remarara eorganic huri pamusoro pe450 PPM, mudziyo weRTO haufanirwe kuwedzera mafuta ekuwedzera; chiyero chekuchenesa chakakwira, chiyero chekuchenesa cheRTO yemibhedha miviri chinogona kusvika pamusoro pe98%, chiyero chekuchenesa cheRTO yemibhedha mitatu chinogona kusvika pamusoro pe99%, uye hapana kusvibiswa kwechipiri senge NOX; kudzora otomatiki, kushanda kuri nyore; kuchengetedzeka kwakakwira.
Mudziyo we regenerative heat oxidation unoshandisa nzira ye thermal oxidation kurapa huwandu hwepakati nepasi hwe organic waste gas, uye ceramic heat storage bed exchanger inoshandiswa kudzosa kupisa. Inoumbwa ne ceramic heat storage bed, automatic control valve, combustion chamber uye control system. Zvinhu zvikuru ndeizvi: automatic control valve iri pasi pe heat storage bed yakabatana ne intake main pipe ne exhaust main pipe zvakateerana, uye heat storage bed inochengetwa nekupisa organic waste gas inopinda mu heat storage bed ne ceramic heat storage material kuti itore nekuburitsa kupisa; organic waste gas inopiswa kusvika pakupisa kwakati (760℃) inopiswa mu combustion chamber kuti igadzire carbon dioxide nemvura, uye inocheneswa. Chimiro chikuru che RTO chine makamuri maviri ekupisa chine kamuri imwe yekupisa, ceramic packing bed mbiri uye switching valves ina. Regenerative ceramic packing bed exchanger iri mumudziyo inogona kuwedzera kupisa kweinopfuura 95%; Hapana kana mafuta mashoma anoshandiswa pakurapa organic waste gas.
Zvakanakira: Mukugadzirisa kuyerera kwakanyanya uye kuwanda kwemarara echisikigo, mutengo wekushanda wakaderera zvikuru.
Zvakashata: mari yakawanda inodyarwa kamwe chete, kupisa kwakanyanya, hazvina kukodzera kurapwa kwegasi rakawanda remarara echisikigo, kune zvakawanda zvinofamba, zvinoda kugadziriswa kwakawanda.
1.1.2 Tekinoroji yekupisa inokonzeresa kupisa (RCO)
Mudziyo wekupisa unokonzera kupisa (Regenerative Catalytic Oxidizer RCO) unoshandiswa zvakananga pakuchenesa gasi remarara epakati nepakati (1000 mg/m3-10000 mg/m3). Tekinoroji yekurapa yeRCO yakakodzera zvakanyanya kudiwa kukuru kwekudzoreredza kupisa, asi yakakodzerawo kune imwe nzira yekugadzira, nekuda kwezvigadzirwa zvakasiyana, kuumbwa kwegasi remarara kunowanzo chinja kana huwandu hwegasi remarara hunochinja zvakanyanya. Inonyanya kukodzera kudzoreredza simba rekupisa remabhizinesi kana kugadzirisa gasi remarara remarara remarara, uye kudzoreredza simba kunogona kushandiswa pakuomesa tambo yematafura, kuitira kuti kuzadzisa chinangwa chekuchengetedza simba.
Tekinoroji yekurapa kupiswa kwemafuta inodzoreredzwa inyaya inowanzoitwa negasi-solid phase reaction, inova ndiyo deep oxidation ye reactive oxygen species. Mukuita kwe catalytic oxidation, kunyudzwa kwepamusoro pe catalyst kunoita kuti ma reactant molecules awedzere pamusoro pe catalyst. Mhedzisiro ye catalyst mukuderedza activation energy inokurumidza oxidation reaction uye inovandudza mwero we oxidation reaction. Pasi pebasa re catalyst chaiyo, organic matter inoitika pasina oxidation combustion patembiricha yakaderera yekutanga (250~300℃), iyo inoora kuita carbon dioxide nemvura, uye inoburitsa simba guru rekupisa.
Mudziyo weRCO unonyanya kuumbwa nemuviri wechoto, muviri wekuchengetedza kupisa unoshanda ne catalytic heat storage, sisitimu yekupisa, sisitimu yekudzora otomatiki, vharuvhu otomatiki nedzimwe nzira dzakawanda. Mukugadzirwa kwemaindasitiri, gasi remhepo rinobuda rinopinda muvharuvhu rinotenderera remuchina kuburikidza nefeni inopinza, uye gasi rinopinda negasi rinobuda zvinoparadzaniswa zvachose kuburikidza nevharuvhu rinotenderera. Kuchengetera simba rekupisa uye kuchinjana kwekupisa kwegasi kunosvika patembiricha yakatarwa ne catalytic oxidation ye catalytic layer; gasi remhepo rinoramba richipisa kuburikidza nenzvimbo yekupisa (kungave nemagetsi ekupisa kana gasi rechisikigo) uye rinochengetedza patembiricha yakatarwa; rinopinda mu catalytic layer kuti ripedzise catalytic oxidation reaction, kureva kuti, reaction inogadzira carbon dioxide nemvura, uye rinoburitsa simba guru rekupisa kuti riwane mhedzisiro yekurapa inodiwa. Gasi rinofambiswa ne oxidation rinopinda mu ceramic material layer 2, uye simba rekupisa rinoburitswa mumhepo kuburikidza ne rotary valve. Mushure mekucheneswa, tembiricha ye exhaust mushure mekucheneswa inongokwira zvishoma pane tembiricha isati yagadziriswa gasi remarara. Sisitimu inoshanda nguva dzose uye inochinja otomatiki. Kuburikidza nebasa remavharuvhu anotenderera, zvidimbu zvese zvekuzadza zveceramic zvinopedzisa matanho ekudziya, kutonhora uye kuchenesa, uye simba rekupisa rinogona kudzoserwa.
Zvakanakira: kuyerera kuri nyore kwemaitiro, michina midiki, kushanda kwakavimbika; kushanda zvakanaka kwekuchenesa, kazhinji kupfuura 98%; tembiricha yakaderera yekupisa; mari shoma inoraswa, mutengo wakaderera wekushanda, kushanda zvakanaka kwekudzorera kupisa kunogona kusvika kupfuura 85%; maitiro ese pasina kugadzirwa kwemvura yakasviba, maitiro ekuchenesa haaburitse kusvibiswa kweNOX; michina yekuchenesa RCO inogona kushandiswa nekamuri rekuomesa, gasi rakacheneswa rinogona kushandiswazve zvakananga muimba yekuomesa, kuti zvizadzise chinangwa chekuchengetedza simba nekuderedza kusvibiswa;
Zvakashata: mudziyo wekupisa unoshanda chete pakurapa gasi remarara eorganic rine zvikamu zveorganic zvinofashaira zvishoma uye dota shoma, uye kurapwa kwegasi remarara nezvinhu zvinonamira zvakaita seutsi hwemafuta hakukodzeri, uye catalyst inofanira kucheneswa; huwandu hwegasi remarara eorganic huri pasi pe20%.
1.1.3TNV Sisitimu yekupisa mafuta inodzokororwazve
Sisitimu yekupisa mafuta inodzokororwa (German Thermische Nachverbrennung TNV) ikushandiswa kwegasi kana mafuta anodziya zvakananga gasi rine organic solvent, pasi pesimba rekupisa kwakanyanya, mamorekuru e organic solvent anoora kuita carbon dioxide nemvura, gasi rinopisa kupisa rinoshandisa nzira yekupisa ye multistage multistage, rinoda mhepo kana mvura inopisa, rinoshandisa oxidation yakazara, rinoderedza kushandiswa kwesimba remagetsi, uye rinoderedza kushandiswa kwesimba remagetsi ese. Saka, sisitimu yeTNV inzira inoshanda uye yakanaka yekurapa marara ane organic solvents kana maitiro ekugadzira achida simba rakawanda rekupisa. Kune electrophoretic paint coating production line itsva, TNV recovery thermal incineration system inowanzo shandiswa.
Sisitimu yeTNV ine zvikamu zvitatu: sisitimu yekudziisa nekupisa gasi remarara, sisitimu yekudziisa nemhepo inotenderera uye sisitimu yekuchinjana kupisa nemhepo itsva. Chishandiso chekupisa negesi remarara chiri musisitimu ndicho chikamu chikuru cheTNV, icho chinoumbwa nemuviri wechoto, imba yekupisa, chinoshandiswa kuchinjana kupisa, chinopisa uye vharuvhu huru inotonga flue. Maitiro ayo ekushanda ndeaya: nefeni ine pressure head ichabvisa gasi remarara kubva mukamuri rekuomesa, mushure mekupiswa negesi remarara, mudziyo wekupisa nepakati wakavakirwa mukati, uchidziisa kupisa, kuenda mukamuri rekuomesa, uye wobva wapfuura nemuchitofu, pakupisa kwakanyanya (inenge 750℃) kusvika pakuora kwegesi remarara remarara reorganic, kuora kwegasi remarara reorganic kuita carbon dioxide nemvura. Gasi remvura rinogadzirwa rinobuda nepachitofu uye pombi huru yemhepo inoyerera muchoto. Gasi remvura rinobuda rinopisa mhepo inotenderera mukamuri rekuomesa kuti ripe simba rinodiwa rekupisa mukamuri rekuomesa. Mudziyo wekufambisa kupisa nemhepo itsva unoiswa pamagumo esisitimu kuti udzore kupisa kwetsvina yesisitimu kuti idzorezve kupisa kwekupedzisira. Mhepo itsva inowedzerwa nekamuri rekuomesa inodziiswa negasi remvura inoyerera yozotumirwa muimba yekuomesa. Pamusoro pezvo, kunewo vharuvhu yemagetsi inodzora papombi huru yegasi remvura inoyerera, iyo inoshandiswa kugadzirisa tembiricha yegasi remvura inoyerera panobuda mudziyo, uye tembiricha yekupedzisira yegasi remvura inoyerera inogona kudzorwa paanenge 160℃.
Hunhu hwechinhu chinopisa gasi remarara chinosanganisira: nguva yekugara kwegasi remarara mukamuri rinopisa i1 ~ 2s; mwero wekuora kwegasi remarara remarara remarara unopfuura 99%; mwero wekupora kwekupisa unogona kusvika 76%; uye chiyero chekugadzirisa chezvinobuda muburner chinogona kusvika 26 ∶ 1, kusvika 40 ∶ 1.
Zvakashata: pakurapa gasi remarara eorganic rine huwandu hushoma, mutengo wekushanda wakakwira; tubular heat exchanger inoshanda chete, inogara kwenguva refu.
1.2 Chirongwa chekurapa gasi remarara eorganic muimba yekupenda inopfapfaidzwa uye muimba yekuomesa
Gasi rinoburitswa mukamuri rekupenda nekuomesa harina huwandu hwakawanda, kuyerera kwakanyanya uye gasi remarara rinopisa mukamuri, uye musanganiswa mukuru wezvinosvibisa iaromatic hydrocarbons, alcohol ethers uye ester organic solvents. Parizvino, nzira yekune dzimwe nyika yakakura ndeye: huwandu hwegasi remarara rinopisa muorganic kuderedza huwandu hwegasi remarara rinopisa, nenzira yekutanga ye adsorption (activated carbon kana zeolite se adsorbent) yekuderedza huwandu hwemarara anoputika mukamuri, ne high temperature gas stripping, concentrated exhaust gas uchishandisa catalytic combustion kana regenerative thermal combustion method.
1.2.1 Mudziyo wekubvisa nekuchenesa kabhoni wakagadziriswa
Kushandisa charcoal inobatidzwa nehuchi semushonga unobatidza, Pamwe chete nemisimboti yekucheneswa kwemvura inobatidza, kudzorerwa kwemvura inobatidza uye kuwanda kweVOC uye kupiswa kwemhepo inobatidza, Mhepo yakawanda, kuwanda kwakaderera kwegasi remarara eorganic kuburikidza nehoneycomb activated carbon adsorption kuti iwane chinangwa chekuchenesa mweya, Kana kabhoni inobatidza yazara uye yoshandisa mhepo inopisa kuti igadzirezve activated carbon, Desorbed concentrated organic matter inotumirwa kumubhedha unobatidza huchi kuti iite catalytic combustion, Organic matter inopiswa kuita carbon dioxide nemvura isina njodzi, Magasi ekupisa anopisa anopisa anopisa mhepo inotonhora kuburikidza neheat exchanger, Kubuda kwegasi rinotonhorera mushure mekuchinjana kwekupisa, Chikamu chekubvisa kudzorerwa kwemvura inobatidza huchi, Kuti iwane chinangwa chekushandisa kupisa kwemarara uye kuchengetedza simba. Mudziyo wese unoumbwa ne pre-filter, adsorption bed, catalytic combustion bed, flame retardancy, related fan, valve, nezvimwewo.
Mudziyo wekuchenesa we activated carbon adsorption-desorption wakagadzirwa zvichienderana nemisimboti miviri mikuru ye adsorption uye catalytic combustion, uchishandisa nzira mbiri yegesi inoramba ichienderera mberi, camera ye catalytic combustion, mubhedha miviri we adsorption unoshandiswa zvakasiyana. Kutanga, gasi re organic rine activated carbon adsorption, kana saturation ikakurumidza kumisa adsorption, wobva washandisa mhepo inopisa kubvisa organic matter kubva mu activated carbon kuti iite activated carbon regeneration; organic matter yave yakanyikwa (concentration yakapetwa kakawanda kupfuura yekutanga) uye inotumirwa ku catalytic combustion chamber catalytic combustion catalytic combustion kuita carbon dioxide uye water vapor discharge. Kana huwandu hwe organic waste gas hunosvika anopfuura 2000 PPm, organic waste gas inogona kuchengetedza spontaneous combustion mu catalytic bed pasina external heating. Chikamu che combustion exhaust gas chinoburitswa mumhepo, uye yakawanda yacho inotumirwa ku adsorption bed kuti pavezve activated carbon. Izvi zvinogona kusangana ne combustion uye adsorption ye heat energy inodiwa, kuti zvizadzise chinangwa chekuchengetedza simba. Kugadziriswazve kunogona kupinda mu adsorption inotevera; mu desorption, basa rekuchenesa rinogona kuitwa neimwe adsorption bed, yakakodzera kushanda nguva dzose uye kushanda nguva nenguva.
Mashandiro ehunyanzvi uye hunhu: kushanda kwakasimba, chimiro chiri nyore, kwakachengeteka uye kwakavimbika, kuchengetedza simba uye kuchengetedza vashandi, hapana kusvibiswa kwechipiri. Midziyo iyi inofukidza nzvimbo diki uye ine huremu hwakareruka. Yakakodzera kushandiswa muhuwandu hwakawanda. Mubhedha wekabhoni unonyungudutsa gasi remarara eorganic unoshandisa gasi remarara mushure mekupiswa necatalytic kuti riburitse patsva, uye gasi rinobviswa rinotumirwa kuimba yekupiswa necatalytic kuti richeneswe, pasina simba rekunze, uye simba rekuchengetedza simba rakakosha. Dambudziko nderekuti kabhoni inobviswa necatalytic haishande zvakanaka uye mutengo wayo wekushanda wakakwira.
1.2.2 Mudziyo wekuchenesa weZeolite transfer wheel adsorption--desorption
Zvikamu zvikuru zve zeolite ndeizvi: silicon, aruminiyamu, ine simba re adsorption, inogona kushandiswa se adsorbent; zeolite runner inoshandisa hunhu hwe zeolite chaiyo aperture ine adsorption uye desorption capacity ye organic pollution, kuitira kuti VOC exhaust gas ine simba shoma uye yakanyanya, ideredze mari yekushandisa ye back-end final treatment tool. Hunhu hwemidziyo yayo hwakakodzera kurapwa kwemvura yakawanda, yakaderera, ine zvinhu zvakasiyana-siyana zve organic. Dambudziko nderekuti mari yekutanga yakakwira.
Mudziyo weZeolite runner adsorption-purification mudziyo wekuchenesa gasi unogona kuramba uchiita adsorption uye desorption operation. Mativi maviri evhiri rezeolite akakamurwa kuita nzvimbo nhatu nechinhu chakakosha chekuvhara: nzvimbo yeadsorption, nzvimbo yedesorption (regeneration) nenzvimbo yekutonhodza. Maitiro ekushanda kwesystem ndeaya: vhiri rinotenderera rezeolites rinotenderera nguva dzose nekumhanya kwakaderera, Kutenderera munzvimbo yeadsorption, nzvimbo yedesorption (regeneration) nenzvimbo yekutonhodza; Kana gasi rekubuda mumhepo rakaderera uye gasi guru richipfuura nepakati penzvimbo yeadsorption yemumhanyi, VOC iri mugasi rekubuda mumhepo inonyungudutswa ne zeolite yevhiri rinotenderera, Kubuda zvakananga mushure meadsorption uye kucheneswa; Chinhu chinonyungudutsa chinonyungudutswa nevhiri chinotumirwa kunzvimbo yekunyungudutswa (regeneration) nekutenderera kwevhiri, Ipapo nemhepo diki inopisa mhepo nguva dzose kuburikidza nenzvimbo yekunyungudutswa, VOC inonyungudutswa nevhiri inovandudzwa munzvimbo yekunyungudutswa, Gasi rekubuda mumhepo reVOC rinoburitswa pamwe chete nemhepo inopisa; Gumbo kunzvimbo yekutonhodza kuti kutonhodze kutonhodze rinogona kudzokororwa, Nekutenderera kwevhiri rinotenderera nguva dzose, Adsorption, desorption, uye kutonhora kunoitika, Ita shuwa kuti kurapwa kwegesi yakasviba kunoramba kuripo uye kwakasimba.
Mudziyo we zeolite runner unonyanya kusanganisa zvinhu, uye gasi rinobuda mumhepo rine organic solvent rakakamurwa kuita zvikamu zviviri: mhepo yakachena inogona kuburitswa zvakananga, uye mhepo inodzokororwa ine organic solvent yakawanda. Mhepo yakachena inogona kuburitswa zvakananga uye inogona kudzokororwa mu air conditioner ventilation system yakapendwa; huwandu hwakawanda hweVOC gasi hunosvika kagumi pane huwandu hweVOC usati wapinda musystem. Gasi rakabatana rinogadziriswa nekupisa kwakanyanya kuburikidza neTNV recovery thermal incineration system (kana mimwe midziyo). Kupisa kunogadzirwa nekupisa ndiko kuomesa imba yekupisa uye zeolite stripping heating zvakateerana, uye simba rekupisa rinoshandiswa zvizere kuti riwane simba rekuchengetedza uye kuderedza kusvibiswa.
Kushanda kwehunyanzvi uye hunhu: chimiro chakareruka, kugadzirisa kuri nyore, hupenyu hwebasa hurefu; kunyudzwa kwakanyanya uye kushanda zvakanaka, kushandura vhoriyamu yekutanga yemhepo ine simba uye vhoriyamu yakaderera yeVOC kuita vhoriyamu yakaderera yemhepo uye vhoriyamu yakawanda yetsvina, kuderedza mutengo wemidziyo yekupedzisira yekurapa kumashure; kudonha kwakaderera zvakanyanya, kunogona kuderedza zvakanyanya kushandiswa kwesimba remagetsi; kugadzirira sisitimu yese uye dhizaini yemodular, ine zvinodiwa zvishoma zvenzvimbo, uye inopa nzira yekudzora inoenderera mberi uye isina munhu; inogona kusvika padanho renyika rekubudisa emission; adsorbent inoshandisa zeolite isingatsvi, kushandiswa kwayo kwakachengeteka; dambudziko nderekudyara kamwe chete nemutengo wakakwira.
Nguva yekutumira: Ndira-03-2023
