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Indlela Amasistimu Okwelapha Igasi Engcolile Ye-VOC Asho Ngayo: Umhlahlandlela Wezikhungo Zezimboni
Kwadalwa ngo 09.07
Indlela Amasistimu Okwelashwa Kwegesi Elahliwe Le-VOC Asebenza Ngayo: Umhlahlandlela Wezikhungo Zezimboni
1. Isingeniso: Kungani Ukwelashwa Kwegesi Elahliwe Le-VOC Sekubalulekile Manje
Abakhiqizi kuzo zonke izigaba zamakhemikhali, ezemithi, zokumboza, zokunyathelisa, kanye nezobuchwepheshe bokukhiqiza izinto zikhiqiza ama-volatile organic compounds njengomkhiqizo oseceleni wemisebenzi evamile. Ngaphandle kokwelashwa okusebenzayo kwegesi engcolile ye-VOC, lezi zinto ezikhishwayo ziphuma zingene emiphakathini engomakhelwane, zibangele izikhalo zephunga, futhi zibeke izinkampani ezinhlawulweni ezisindayo. Abalawuli bezwe eNyakatho Melika, e-European Union, naseChina manje basebenzisa imikhawulo eqinile ehlanganisa ukuncishiswa kwe-VOC ezindlekweni zokwenza ibhizinisi. Ngaphezu kokuhambisana nje nemithetho, uhlelo oluklanywe kahle lokwelashwa kwegesi engcolile ye-VOC lubuyisela izincibilikisi, lukhiqize ukushisa okusetshenzisekayo, futhi luvikele imishini esezansi ekugqwaleni nasekungcolisweni kwangaphambi kwesikhathi. Inhloso yalo mhlahlandlela ukusiza abaphathi bezimboni, amaqembu e-EHS, kanye nonjiniyela bamaphrojekthi baqonde ukuthi lezi zinhlelo zisebenza kanjani, yiziphi izobuchwepheshe ezikhona, nokuthi bangakhetha kanjani ukufakwa okuhambisana ngempela nendawo ethile.
Ukulawulwa kokungcola komoya sekusukile ekubeni umcabango wamuva kwaba yinto ebalulekile emasu ekuhleleni kwezimboni zanamuhla. Imiphakathi namakhasimende aya ngokuya ehlola ukuziphatha kwemvelo kwemigudu yokuhlinzeka, okwenza izitaki zokukhishwa komoya ezibonakalayo zibe yinkinga yobudlelwano nomphakathi kanye nenkinga yezobuchwepheshe. Abahlinzeki bomshuwalense nababolekisi manje base behlola amarekhodi okuhambisana nemvelo ngaphambi kokugunyaza isimbozo noma ukuxhasa ngezimali, okukhulisa umphumela webhizinisi wawo wonke umfudlana wokukhishwa komoya ongalashwanga. Ngenxa yokuthi izinhlanganisela eziphilayo eziguquguqukayo ziyizandulela ze-ozone esezingeni lomhlaba kanye nama-aerosol ephilayo yesibili, ukuzilashwa kwazo kuletha izinzuzo ezilinganisekayo zekhwalithi yomoya wesifunda kanjalo. Lapho abaphathi behlola amaphrojekthi ezimali, ukulashwa komoya oyimfucuza ye-VOC kufanele kubhekwe njengempahla evikela ilungelo lokusebenza kunokuba kube yindawo yezindleko kuphela.
2. Ayini Ama-VOC futhi Kungani Izikhungo Zezimboni Kufanele Ziwelaphe?
Ama-volatile organic compounds, noma ama-VOC, amakhemikhali asekelwe kukhabhoni akhishwa kalula emazingeni okushisa ajwayelekile egumbini nasezingcindezini zomoya. Izibonelo ezijwayelekile zifaka i-benzene, i-toluene, i-xylene, i-ethyl acetate, i-acetone, i-methanol, kanye nezinye izincibilikisi eziningi ezisetshenziswa kupende, izinto zokunamathisela, uyinki, nezinto zokuhlanza. Uma zikhishiwe, lezi zinhlanganisela zibamba iqhaza ekuphenduleni kwe-photochemical okudala umoya ongcolile, futhi eziningi zazo zihlukaniswa njengezinto ezibangala umdlavuza noma izinto ezicasula amaphaphu ezisongela impilo yabasebenzi. Izindawo zangaphakathi lapho umusi ogxilile unqwabelana khona futhi zidala ingozi yokuqhuma nomlilo, yingakho zonke izinhlelo zokwelapha kufanele zifake ukutholwa komusi ngokucophelela nezinyathelo zokuvimbela ukusha. Isikhungo esazi ukuthi umusi waso uquketheni sesivele siseduze nokuklama isisombululo esifanele sokwelapha umusi wemfucuza we-VOC.
Ukukhishwa kwe-VOC ezimbonini kuvela emisebenzini eminingi ebikezelwayo, njengamabhothi okufafaza, ama-oveni okomisa, ukulahleka kokuphefumula kwamathangi okugcina, iziteshi zokudlulisa, kanye namachibi emanzini angcolile. Ama-solvent angenawo umsoco avela emigqeni yokuhlanza ewodwa angamela ingxenye enkulu yombhalo wokukhishwa kwaminyaka yonke ezitshalweni zokuqedela. Umthelela wemvelo walokhu kukhishwa udlulela kude nangale komngcele wemboni ngoba ama-VOC ahamba nomoya futhi abe nomthelela ekwakhekeni kwe-ozone yesifunda ngesikhathi sezulu esifudumele. Izikhungo zezempilo zixhumanisa ukuchayeka isikhathi eside nomonakalo wesibindi, izinso, kanye nesimiso sezinzwa esimaphakathi, ngakho imikhawulo yokuchayeka emsebenzini iphoqelelwa ngokuqinile kanye namazinga omoya omphakathi. Ukukhishwa ngokwako kufanele kukalwe ngezikhathi ezithile futhi kubikwe kuziphathimandla, okusho ukuthi izindawo zokuthatha amasampula ezinokwethenjelwa kufanele ziklanywe emiseleni yamapayipi kusukela ekuqaleni.
Izizathu zokulawula ziyahluka ngezifunda kodwa zabelana ngesisekelo sefilosofi efanayo sokunciphisa umthwalo ophelele okhishwayo ongena emkhathini. E-United States, i-Environmental Protection Agency iphoqelela i-Clean Air Act nge-New Source Performance Standards kanye ne-Maximum Achievable Control Technology imithetho egunyaza ukusebenza kahle okuthile kokubhubhisa. I-European Union isebenzisa i-Industrial Emissions Directive kanye ne-solvent emissions directive, edinga ukuthi izakhiwo zisebenze ngobuchwepheshe obutholakalayo obungcono kakhulu futhi zihambisane nezinga elibophezelayo lokukhipha umoya ongcolile. I-China ngokufanayo iphoqelela izindinganiso zikazwelonke ezifana ne-GB 37822 kanye nezabelo zokukhipha izinto eziphilayo eziguquguqukayo ezikhishwe endaweni ezinezilinganiso eziqinisa kakhulu zokugxila. Kungakhathaliseki ukuthi iyiphi indawo, izimvume eziningi zicacisa ukusebenza kahle kokubhubhisa, ukugxila okuphumayo ngamamiligremu ngekhubikhi ngamunye, noma kokubili, ngakho-ke ubuchwepheshe obukhethiwe bokwelapha igesi engcolile ye-VOC kufanele benziwe ngokuhambisana nalezo zindinganiso zokwamukela ezinombolo. Ukuze uthole ukubuka okusebenzayo kwemishini yezemvelo ehlanganisiwe kanye nezinketho zamakhemikhali emisakazweni yezinqubo ehlobene, onjiniyela bangaphequlula ikhasi Lemikhiqizo ukuze baqhathanise izixazululo zamayunithi ezikhona.
3. Izimiso Eziyisisekelo Zokwelashwa Kwegesi Elahliwe Le-VOC
Zonke izinhlelo eziphumelelayo zokwelapha umoya odlulayo we-VOC zincike ezenzweni ezimbili zokuqala: ukubamba umoya ongcolile ngempumelelo bese uwugxilisa noma uwulungiselela ngaphambi kokubhujiswa kokugcina noma ukubuyiselwa. Ukuvuza okungalawuleki eduze kwamaphampu, ama-flange, nemigqomo evulekile kugqekeza ngisho ne-oxidizer engcono kakhulu ngoba umoya ongalungisiwe uphuma eduze kwama-hood nezindawo zokulayisha. Ukubamba okufanele kuqala ngokuklanywa kwendawo ebiyelwe, ukugcinwa kwengcindezi engemihle, nokubekwa kwama-hood ukuze umusi we-solvent ugeleze ngendlela elindelekile ungene ku-manifold yokuqoqa. Ukuhlanjululwa kuyisitha sokwelashwa okungabizi, njengoba umoya omkhulu ogcwele ukugxila okuncane kwe-VOC udla amandla amakhulu kakhulu kaphethiloli uma uthunyelwa ngqo ekushiseni okushisayo. Izinhlelo eziningi ngakho-ke zifaka amasondo okugxilisa noma amayunithi okukhangisa akhipha ukungcola emoyeni omkhulu bese ukukhipha emseleni omncane kakhulu, ocebile ukuze kwenziwe ukucwenga kokugcina.
Izindlela zokwelapha ziwela emaqenjini amabili amasu: ukubuyisela lapho i-solvent inenani lokusetshenziswa kabusha, kanye nokubhubhisa lapho okuqukethwe kwemvelo kuxubile noma kungcolile ngendlela engakwazi ukuhlanjululwa ngokomnotho. Ubuchwepheshe bokubuyisela njenge-condensation, ukuhlukaniswa nge-membrane, kanye ne-activated carbon desorption kubuyisela i-solvent ehlanzekile enqubweni futhi kukhiqize imali yokukhokhela izindleko zokusebenza. Ubuchwepheshe bokubhubhisa, kufaka phakathi ama-thermal and catalytic oxidizers, buguqula ama-hydrocarbon babe yi-carbon dioxide nomhwamuko wamanzi, okufanele imifudlana yemfucuza ehlukahlukene noma enenani eliphansi. Ukukhetha phakathi kwala maqembu kuncike ekwakhekeni kwegesi, izinga lokugeleza, ukugxila, kanye nokuba khona kwama-halogen, ama-silicone, noma izinhlayiya ezingadala ubuthi kuma-catalyst noma zikhiqize imikhiqizo eyonakalisayo. I-VOC waste gas treatment integrator enolwazi izoqala ngokulinganisa lezi zinto, bese iphakamisa uhlelo oluxubile olungase luhlanganise i-concentrator, i-oxidizer encane, kanye ne-heat exchanger ngokulandelana.
Izisekelo Zokubamba, Ukugxilisa, kanye Nokulungisa
Ngaphambi kokuba iyunithi yokwelapha umoya odlulekayo we-VOC icatshangelwe, igesi eluhlaza kufanele idlule ezihlungini zezinhlayiyana noma kuma-cyclone asusa uthuli kanye ne-overspray. Umswakama wehliswa ngezomiso ze-desiccant noma ngokushisa umfudlana, ngoba umhwamuko wamanzi uncintisana nama-molecule e-organic ezindaweni zokumunca futhi wehlisa umsebenzi we-catalyst. Izinga lokushisa lilungiswa libe sebangeni elilungile leyunithi elandelayo, ngokuvamile ngokubuyiselwa kokushisa okuvela ku-oxidizer ngokwayo. Lezi zinyathelo zivikela izingxenye zangaphakathi ezibizayo futhi ziqinisekisa ukuthi iziqinisekiso zokusebenza zihlala zisebenza phakathi nayo yonke impilo yemishini. Ukweqa noma yisiphi salezi zinyathelo zokulungisa izinga kuyimbangela evame kakhulu yokushintshwa kwe-media ngaphambi kwesikhathi kanye nokuma okungalindelekile.
4. Izindlela Eziyisisekelo Zokwelashwa Kwe-VOC Eziqhathaniswayo
Imakethe inikeza izindlela ezimbalwa ezivuthiwe zokwelapha igesi engcolile ye-VOC, futhi ngayinye isebenza endaweni ehlukile echazwa ukugxila, ukugeleza, kanye nomjikelezo wokusebenza. Ama-thermal oxidizer asebenza ngokuthembekile ezindaweni eziningi zomthwalo wemvelo futhi ayindlela eyisisekelo yemifudlana enokugeleza okuphezulu nokugxila okumaphakathi. Amasistimu e-catalytic agqama lapho ukugxila kungaphansi futhi umsebenzisi efuna ukunciphisa ukusetshenziswa kukaphethiloli ngenkathi eqhubeka namazinga aphezulu okubhubhisa. Ama-adsorption train asebenza kahle kakhulu kuma-solvent ancishisiwe kodwa abalulekile angabuyiselwa, kuyilapho izihlungi zebhayoloji zisingatha amanani amakhulu kakhulu omoya obuthakathaka, onukayo ngezindleko eziphansi. Ukuqhathanisa ukusebenza kahle kokususa, izindleko zokuqala, umthwalo wokunakekela, kanye nesidingo samandla yikona okuyisisekelo sokukhetha ubuchwepheshe obufanele.
Ukushiswa Kwe-Thermal: Izinhlobo Ezivuselelayo Nezibuyiselayo (RTO/TNV)
I-thermal oxidation ibhubhisa ama-VOC ngokushisa igesi ifike cishe kuma-degree Celsius angu-760 kuya ku-870, iyigcine kulelo zinga lokushisa isikhathi esilinganiselwe sokuhlala, bese iguqula izinto eziphilayo zibe yi-carbon dioxide namanzi. Ama-recuperative oxidizer adlulisa ukushisa okuvela kumsinga ohlanzekile wokukhipha abuyisele egasini elingcolile elingenayo ngokusebenzisa isishintshi sokushisa sensimbi esivamise ukubuyisela phakathi kwamaphesenti angu-60 nangu-75 wamandla okushisa. Ama-regenerative thermal oxidizer, noma ama-RTO, esikhundleni salokho asebenzisa izindikimba zobumba lwe-ceramic ezigcina ukushisa kusuka kumjikelezo owodwa bese zikukhipha kowesibili, zifinyelele ukusebenza kahle kokushisa okungaphezu kwamaphesenti angu-95 uma zinakekelwa kahle. Ukusebenza kahle okuphezulu kusho ukuthi umsinga ogcwele i-solvent ungakwazi ukusekela i-oxidation cishe ngaphandle kokusebenzisa amandla okushisa, udinga igesi yemvelo eyengeziwe encane kakhulu. Ama-RTO aqinile ekumelana nokukhuphuka kokugxila, kodwa makhulu ngokomzimba futhi angaba nazwela ekuxinana kwezinhlayiyana kanye nemisinga ene-halogenated ekhiqiza umusi we-asidi odinga ukuhlanjululwa ngemuva.
Ukushiswa Kwe-Catalytic (RCO)
Ama-catalytic oxidizer, avame ukufushaniswa ngokuthi i-RCO lapho amabhedi e-regenerative ehlanganiswa ne-catalyst, e-oxidize ama-VOC emazingeni okushisa aphansi kakhulu acishe abe ngu-300 kuya ku-430 degrees Celsius. I-catalyst yensimbi eyigugu noma i-metal-oxide isheshisa ukusabela kwe-oxidation ukuze kuzuzwe ukubhujiswa okufanayo ngokuncipha okukhulu kokufakwa kwe-fuel kanye nengcindezi yokushisa ephansi emishinini. Okushintshaniswayo ukuthi ama-catalyst asengozini yokuklinywa yizinsimbi ezisindayo, ama-silicone, ama-phosphate, kanye nezinhlanganisela ezithile zesulfure, ngakho ukuhlunga kwangaphambi komshini kuba yimpoqo. Lapho izimo zokufaka zizinzile futhi zihlanzekile, i-catalytic oxidation inikeza phakathi kwezindlela zonke zokubhubhisa ngokushisa ezinomthelela omncane kakhulu wekhabhoni ekusebenzeni. Abasebenzi abaningi bakhetha i-RCO lapho isitshalo sisebenza ngokuqhubekayo ngoba ukonga kwamandla kubuyisela ngokushesha ukutshalwa kwezimali okuphakeme kwe-capital.
Ukumuncwa Nokubuyiselwa Kwe-Activated Carbon
I-carbon ekhutshisiwe (activated carbon) imunca umusi wezinto eziphilayo endaweni yayo enkulu yangaphakathi, ngokwenza kanjalo ibambe isincibilikisi emoyeni omkhulu futhi ihlanze umoya ophumayo uze ube namazinga aphansi kakhulu okukhishwa. Lapho umbhede wekhabhoni ususondela ekugcwaleni, abasebenzi bayawuvuselela besebenzisa umusi oshisayo, i-nitrogen eshisayo, noma i-vacuum, bese isincibilikisi esikhishiwe siyahlanganiswa ukuze sisetshenziswe kabusha noma sithunyelwe ku-oxidizer encane. Amasistimu we-fixed-bed alula, aqondwa kahle, futhi alungele ukusebenza ngezikhathi ezithile, kuyilapho amasondo e-rotary concentrator ebhekana nokusetshenziswa okungapheliyo komthamo ophezulu ngokuzungeza ezindaweni zokumunca nokukhipha. Izingozi eziyinhloko zokusebenza umlilo wemibhede obangelwa amaketone asebenzayo, kanye nokulahlekelwa kwezinhlayiyana ezincane okunciphisa kancane kancane umthamo womubhede. Ngenxa yalesi sizathu, amasistimu ekhabhoni adinga ukuqapha izinga lokushisa okuqinile futhi ngokuvamile afaka i-inert gas blanketing njengesendlalelo sokuvikela umlilo.
I-Biofiltration kanye Nezinye Izindlela Ezisafufusa
Ama-biofilter ahambisa umoya ongcolile adlule endaweni emanzi, ephilayo yomhlabathi wokubola, izicucu zokhuni, noma indawo yokuxhumana eyakhiwe lapho ama-microorganism eguqula ama-VOC abe yi-carbon dioxide namanzi. Ahamba phambili emoyeni omkhulu oqukethe amazinga aphezulu okungcola, njengalawa atholakala eduze kwezindawo zokuhlanza amanzi angcolile noma izindawo zokucubungula ukudla, ngoba izindleko zawo zokusebenza ziphansi kakhulu. Ukusebenza kwawo kuncike kakhulu ezingeni lokushisa, ukulingana komswakama, kanye nokubola kwezinto ezingcolile ezithile, ngakho-ke izinto ezinama-chlorine ezingaboliyo ngokuvamile azifaneleki. Izindlela ezisafufusa njenge-plasma oxidation, ama-photocatalytic reactor ancike ekukhanyeni kwe-UV, kanye nama-electrochemical scrubber ziyaqhubeka zikhula ekuphatheni izinhlelo ezikhethekile. Izindawo eziningi zesimanje zihlanganisa i-biofilter yomoya omkhulu kanye ne-thermal polisher encane yengxenye enzima kakhulu yomthombo wokukhishwa—isu elihlanganisiwe elilinganisa izindleko nokuqinisekisa.
5. Izinto Okufanele Zicatshangelwe Lapho Ukhetha Uhlelo Lokwelashwa Kwegesi Elingcolile le-VOC
Ukukhetha uhlelo lokwelapha igesi engcolile ye-VOC kuqala ngokuhlolisisa ngokucophelela imfucuza, ngoba ubuchwepheshe obusebenza kahle kusinye isincibilikisi bungase buhluleke kabi kwesinye. Ukwakheka kwamakhemikhali kwenhlanganisela ngayinye kunquma izinga lokushisa elizishisayo ngokuzenzakalela, ukushisa kokuvutha, kanye namandla okwakha amapholima anamathelayo noma ama-asidi agqamayo ngesikhathi sokuxidwa. Ukugxila kufanele kuhlolwe kuwo wonke umjikelezo wokukhiqiza ngoba ukusebenza ngezikhathi ezithile kukhiqiza ukuguquguquka okukhulu phakathi kokudonsa okuphumule kanye nomsebenzi ophezulu wokufafaza. Izinga lokugeleza linquma usayizi womzimba wemishini kanye namandla efani adingekayo ukunqoba umhubhe kanye nokumelana kwendlela. Izinga lokushisa kanye nomswakama nakho kuyanquma, njengoba imifudlana emanzi kakhulu efika kumasondo e-adsorbent inciphisa kakhulu umthamo wawo wokusebenza.
Ngaphandle kwephrofayela yegesi elahliwe, ibhalansi yamandla esitshalo kanye nenani lemikhiqizo engasetshenziswa kabusha kuba nomthelela kwezomnotho wokugcina. I-oxidizer efaka ibhoyila yokubuyisela ukushisa okulahliwe ingakhiqiza isitimu esinciphisa izindleko zokusebenza ngendlela amasilo okuhambisana nje angasoze ayifinyelele. Ngokufanayo, uhlelo lokubuyisela i-solvent olubuyisela i-acetone ehlanzekile enqubeni lususa into ekhokhelwayo yokuthenga kuyilapho lunciphisa umkhondo wemvelo. Ukwehla kwengcindezi kulo lonke uhlelo kufanele kuqondaniswe ngokucophelela namafeni okukhipha umoya akhona noma amafeni amasha atholwe nephakethe. Ekugcineni, imithetho yemvume yendawo ingase idinge izinsimbi ezithile zokuqapha, ukulogwa kwedatha, nokuhlolwa kwe-stack ngezikhathi ezithile konke lokhu okwengeza ezindlekweni eziphelele zobunikazi. Ukuhlola okucatshisiwe okusebenzisa lezi zindlela kuvikela ibhizinisi ekuzibophezeleni esixazululweni esikhulu kakhulu namuhla noma esincane kakhulu kusasa.
6. Ukuklanywa Kwezinhlelo, Ukuphepha, kanye Nokuhlanganiswa Nokukhiqiza
Ukwakhiwa kwesistimu okuhle kubheka iyunithi yokuhlanza igesi engcolile ye-VOC njengengxenye eyodwa ngaphakathi kwesistimu yokukhiqiza ebanzi kunokuba kube yi-skid eseceleni eboshelwe ophahleni. Izigaba zokuhlanza ngaphambi kokuhlanza ezinjenge-quench towers, izihlanzi ze-acid gases, nama-demisters kufanele zikhethwe ngokusekelwe ku-contaminant matrix, kuhlinzekwe ngezindawo zokufinyelela zokushintsha i-media yesikhathi esijwayelekile. Iyunithi yenqubo eyinhloko ibe isilinganiswa kahle kusetshenziswa izici zokukhishwa ezingokoqobo namahora okusebenza ukuze amandla okunciphisa ahambisane nezenzakalo zasebusuku, zangempelasonto, kanye nokuvalwa kokulungisa. Ukuvikelwa kokuqhuma kuyimpoqo cishe kuzo zonke izinhlelo zokusebenzisa i-solvent, kufaka phakathi ama-flame arrestors, ama-rupture disks, ukuphuma kwe-deflagration, kanye nama-interlocks ahlukanisa i-oxidizer lapho izilinganiso ze-lower explosive limit zikhuphuka. Amasistimu okuvikelwa komlilo, ama-emergency bypass dampers, nama-carbon monoxide analyzers aqedela isithombe sokuphepha ukuze iyunithi yehluleke ngokuphephile kunokuba yehluleke ngokuyingozi.
Ukuhlanganiswa nemigqa yokukhiqiza ekhona kudinga ukuhlelwa ngokucophelela kwezindawo zokuxhuma kanye nokuxhumanisa ngokucophelela amasignali okulawula ne-distributed control system yesikhungo. I-abatement skid kufanele ifake iphaneli yayo yokulawula yasendaweni ukuze isebenze ngokuzimela, kuyilapho futhi ishintshanisa amasignali esimo njengokugijima, iphutha, nokuqedwa kokuhlanza ne-central system. Ukuxhumana kwezinsiza zikagesi wemvelo, umoya ocindezelwe, amanzi okupholisa, nogesi kufanele kuxhumaniswe ekuqaleni kwephrojekthi ukuze kugwenywe umsebenzi ophindwayo obizayo ngesikhathi sokuqalisa. I-Haidi Environment (Tianjin) CO.,LTD, inkampani enolwazi lokuletha izimpahla eziphelele zokwelashwa kwemvelo kusukela kumasistimu okufaka amanzi ahlakaniphile kuya kumayunithi okuhlukanisa nge-membrane, ikhombisa indlela uzakwethu oyedwa ophethe umthwalo angazenza ngayo lula ukuhlanganiswa okunjalo. Amaklayenti ayazuza lapho ithimba lobunjiniyela elilodwa lihlanganisa imijikelezo yokwelashwa kwamanzi nezilawuli zokukhishwa komoya, ngoba i-process condensate evela kuma-scrubber ingabuyiselwa embonini yokwelashwa kwamanzi esikhundleni sokulahlwa. Lapho onjiniyela bemishini nezinqubo besebenzisana ngesikhathi sokuklama okuyisisekelo, isikhungo sigwema iphutha elijwayelekile lokuklama imishini yokunciphisa engakwazi ukungena ngokomzimba noma ngokushisa esakhiweni esikhona.
7. Izinqubo Ezinhle Kakhulu Zokunakekela Nokusebenza
Ukusebenza okuthembekile kokwelashwa kwemfucuza yegesi ye-VOC kuncike ekunakekelweni okuhlelekile, futhi ukuphazamiseka okuningi okungalindelekile kubangelwa izihlungi ezinganakiwe, ama-heat exchanger angcolile, noma izinsimbi zokulinganisa ezigugile. Abasebenzi kufanele basungule uhlelo lokuhlola lwamasonto onke oluhlola ukwehla kwengcindezi kusihlungi ngasinye, amazinga okushisa kuma-bearing emishaftini ejikelezayo, kanye nokuqina kokuxhumana kwamapayipi e-flexible duct. Uhlelo lwanyanga zonke luqinisekisa ukulinganiswa kwama-continuous emission monitors kanye nezivikelo zelangabi, kuyilapho umsebenzi wekota ngokuvamile uhlanganisa ukugcoba, ukulungiswa kwe-damper linkage, kanye nokuhlolwa ngekhamera yokushisa kwezindonga ze-refractory. Amasistimu e-catalytic adinga ukuhlolwa komsebenzi ngezikhathi ezithile nge-analyzer ephathekayo ukuze kutholakale ukuncipha kancane kancane komsebenzi ngaphambi kokuba ukusebenza kahle kokuqothula kwehle ngaphansi kwemikhawulo yemvume. Amabhedi ekhabhoni adinga ukuhlolwa kwesisindo okuhleliwe noma ukuqapha kokuphuma ukuze i-media egcwele ivuselelwe ngaphambi kokuba iphunga liphumele phansi.
Ukuxazulula izinkinga ezivamile kulandela ukulandelana okunengqondo, kuqala ngokuqinisekisa ukuthi ukugeleza kwegesi okungenayo kuyahambisana namanani okuklanywa nokuthi ukugxila akukashintshi ngaphezu komkhawulo wemishini. Ukukhuphuka okungazelelwe kokwehla kwengcindezi kusikisela ukugcwala kwezinhlayiyana noma ukuhlangana kwendaba, kuyilapho ukwehla kokusebenza kahle kokubhubhisa kuvame ukukhomba ebuthini bokuketanga noma ekungcoleni kwesishintshi sokushisa. Ukusetshenziswa kwamandla kungathuthukiswa ngokulungisa isilinganiso somoya ogaywa kabusha, ukunciphisa umoya ovuthayo owedlulele, nokulungisa kahle izilawuli zenqubo ukuze iyunithi ingashisi uphethiloli ngokungadingekile ngezikhathi zomthwalo ophansi. Ukuqeqeshwa kwabasebenzi kuwukutshalwa kwezimali okuyigugu kakhulu, ngoba amaqembu afundiswe kahle abona izinkinga zisencane futhi asabela ngaphakathi kwesikhathi esibucayi sokusabela. Ukunikeza izifundo zokuphinda zikhumbuze ngokuqalisa okuphephile, ukuvala, nokuhlukanisa okuphuthumayo kunciphisa kakhulu ingozi yephutha lomuntu ngesikhathi sezinkinga, futhi zonke izikhungo kufanele zibhale izifundo ezifundiweyo encwadini yokugcina yokulungisa efinyelelekayo eqinisa ukuthuthuka okuqhubekayo.
8. Kungani Ukhetha I-Haidi Environment Kumsebenzi Wakho Wokwelashwa Kwegesi Elingcolile le-VOC
Ukuthola umlingani ekwelashweni kwegesi engcolile ye-VOC kusiza ukusebenza nenhlangano eqonda amasistimu ezemvelo ezimbonini ngokuphelele hhayi njengento eyodwa yemishini kuphela. I-Haidi Environment (Tianjin) CO.,LTD iletha lo mbono ophelele, isekela amaklayenti kulo lonke uhambo lwempilo eqala ngokuhlolwa kwenqubo futhi iphele ngesevisi yangemva kokuthengisa esabelayo. Onjiniyela bale nkampani baqala ngokuhlola umthombo wokukhishwa komoya, balinganise ukuhamba nokugxila, bese bephakamisa isakhiwo sokwelashwa esilinganiselwe izindleko zokuqala, ukusetshenziswa kwamandla, nokuthembeka kwesikhathi eside. Ngemuva kokufakwa, i-Haidi iyaqhubeka nokuhlinzeka ngosekelo lokusebenza, ukuqeqeshwa kwabasebenzi, izingxenye zokushintshwa, kanye nokuvakasha kokunakekela okuhleliwe okugcina ukusebenza kahle kokubhubhisa ezingeni eliphezulu. Le ndlela ehlanganisiwe yehlisa ingozi yephrojekthi ngoba iqembu elilodwa eliziphendulayo lixhumanisa imikhakha yemishini, kagesi, kanye nokulawula kusukela ekucabangeni kuze kufike ekunikezelweni.
Iphothifoliyo ebanzi yenkampani, ehlanganisa izinhlelo zokuphatha amanzi ezihlakaniphile, ama-membrane e-reverse osmosis, nezisombululo zokufaka amakhemikhali, ibonisa ifilosofi yayo yokuhlanganisa zonke izinsiza zemvelo ohlakeni olulodwa lokuphatha. Isikhungo esethemba umhlinzeki oyedwa ngamanzi aso okucubungula kanye nokukhishwa kwawo komoya senciphisa isitokwe sezingxenye zokushintshwa, sihlanganise isakhiwo sokulawula, futhi siqinise ubudlelwano phakathi kweminyango eyayihlukene ngaphambili. Izifundo eziphuma emiklameni eqediwe yokuhlanza umoya zibonisa imiphumela ebonakalayo, okuhlanganisa ukuhambisana nemvume ngaphansi kokusebenza okuqhubekayo, izikhalazo zephunga ezincishisiwe, kanye nokubuyiselwa kwamandla okulinganisekayo. Amaklayenti angaba yiklayenti angabuyekeza ububanzi balezi zinikezelo zemvelo ekhasini laseKhaya, noma angahlola izisombululo ezithile zamakhemikhali nama-membrane emijikelezweni yamanzi ehlobene ekhasini lamaPhrodiakthi1. Lapho izimo zemakethe zishintsha futhi imithetho iqina, ukuba nomlingani onamandla ajulile obunjiniyela kuqinisekisa ukuthi isikhungo sizijwayeza ngokushesha ngaphandle kokulahlekelwa umfutho wokukhiqiza.
9. Isiphetho: Ukuguqula Ukuhambisana Kube Inzuzo Yokusebenza
Ukuhlanjululwa kwesimanje kwemfucuza ye-VOC akusiyona nje into yokugcwalisa umthetho, futhi izikhungo ezikuhlanjululayo ngamasu zizuza izinzuzo zezebhizinisi ezihlala njalo. Impumelelo iqala ngokuchazwa okunembile komgudu wemfucuza, iqhubeke ngokuqhathanisa okulinganiselayo kobuchwepheshe bokubuyisela nokubhubhisa, bese igcina ngohlelo oluhlangana ngokuphephile nokukhiqiza kwansuku zonke. Ukusebenza kahle kwezinsizakalo bese kuncika ekunakekelweni okuhlelekile, ukuqapha okuqhubekayo, nabasebenzi abanekhono abaqonda imishini njengengxenye yenqubo yonke. Impahla yokunciphisa ethembekile ivikela impilo yabasebenzi, iqinisekisa ilayisense yomphakathi yokusebenza kwesikhungo, futhi ivamise ukukhokha izinzuzo eziyingxenye ngokubuyiselwa kwe-solvent noma ukusetshenziswa kabusha kokushisa okusalayo.
Yonke indawo ihlukile, yingakho izixazululo zamathempulethi ajwayelekile zingavamile ukwanelisa kokubili umlawuli kanye nehhovisi lesabelomali, futhi yingakho ukubonisana nozakwethu onolwazi lobunjiniyela kuyindlela ethembeke kakhulu eya phambili. I-Haidi Environment (Tianjin) CO.,LTD yamukela abaphathi bezitshalo kanye nonjiniyela bezemvelo ukuthi baxoxe ngezinselelo zabo ezithile zokwelashwa kwegesi engcolile ye-VOC, kungakhathaliseki ukuthi yimuphi umkhakha noma ubukhulu. Ithimba lizosiza ukuchaza umthombo wokukhishwa, lihlole ukugxila nokugeleza, futhi liphakamise isixazululo esenziwe ngokwezifiso esihlangabezana nezimvume zamanje kuyilapho sigcina amandla okukhula kwesikhathi esizayo. Abafundi bayakhuthazwa ukuthi baxhumane ngeziteshi zokubuza zenkampani ukuze bathole ukubonisana, noma babuyekeze imininingwane yokuxhumana etholakala ekhasini laseKhaya. Ukuqala leyo ngxoxo namuhla kuguqula isibopho semvelo sibe amandla okusebenza alawulwayo, alingekayo, futhi abhalwe kahle.
10. Imibuzo Evame Ukubuzwa (FAQ)
Yini isistimu yokwelashwa kwegesi elahliwe le-VOC futhi isebenza kanjani?
I-VOC waste gas treatment system ibamba umoya ogcwele izinhlanganisela eziphilayo eziguquguqukayo ezivela ezinqubweni zezimboni bese ibhubhisa noma ibuyisele izinto ezingcolisayo ngaphambi kokuba igesi ikhishwe emkhathini. Uhlelo olujwayelekile luqala ngama-capture hoods kanye namapayipi, kulandele izihlungi zokwelapha zangaphambili zokususa izinhlayiya kanye nomswakama. Iyunithi eyinhloko bese isebenzisa ubuchwepheshe bokubhubhisa njenge-thermal noma i-catalytic oxidation, noma ubuchwepheshe bokubuyisela njenge-activated carbon adsorption ene-condensation. Igesi ehlanziwe idlula ku-stack yokugcina lapho ama-continuous emission monitors aqinisekisa ukuhambisana nemithetho. Idizayini iyonke yakhelwe ngokusekelwe ezingeni lokugeleza okuthile, ukugxila kwezinto ezingcolisayo, kanye nomkhawulo womthetho wendawo ngayinye.
Yiziphi izimboni ezidinga ukwelashwa kwegesi elahliwe le-VOC?
Izimboni ezisebenza ngezincibilikisi nezinto eziphilayo ezisebenzayo ngokuvamile zidinga ukwelashwa kwegesi elahlekile le-VOC, okuhlanganisa ukukhiqizwa kwamakhemikhali, ukuhlanganiswa kwemithi, ukuphrinta nokupakisha, ukumboza izimoto nezimboni, kanye nokwakhiwa kwezinto zikagesi. Ukuqedwa kokhuni, ukukhiqizwa kwetheyiphu yokunamathisela, kanye nezindawo zokuguqula ukupakisha okuguquguqukayo nakho kuvamile ukusebenzisa imishini yokunciphisa. Ngisho nezindawo zokuhlanza amanzi angcolile kanye nabacubunguli bokudla kungadinga izinhlelo zokulawula iphunga kuye ngezimvume zendawo. Into efanayo ukuba khona kwamakhemikhali asekelwe kukhabhoni ahwamukayo adlula imikhawulo yokukhishwa kwendawo. Abasebenzi bezitshalo kufanele babuyekeze idatha yabo yokuphepha kwezinto kanye nohlu lokukhishwa ukuze baqinisekise ukufaneleka.
I-RTO ne-RCO yehluka kanjani ekwelashweni kwegesi elingcolile le-VOC?
I-RTO, noma i-regenerative thermal oxidizer, ibhubhisa ama-VOC ezingeni lokushisa eliphezulu isebenzisa izimbiza ze-ceramic ukugcina nokusebenzisa kabusha ukushisa, kuyilapho i-RCO yengeza i-catalyst evumela ukuthi i-oxidation yenzeke ezingeni lokushisa eliphansi. I-RTO iqinile kakhulu ekumelaneni nobuthi be-catalyst futhi ibhekana kahle nokugeleza okuguquguqukayo, kodwa isebenzisa uphethiloli omningi futhi isebenza emazingeni okushisa aphezulu. I-RCO inikeza ukusebenza kahle kwezindleko zamandla okuphezulu kanye ne-carbon footprint ephansi lapho igesi yokufaka ihlanzekile futhi ingaguquguquki. Imishini ye-RCO nayo ivame ukuba mncane kune-unit yokushisa efanayo. Ukukhetha okulungile kuncike ekwakhekeni kwamakhemikhali e-solvent, okuqukethwe kwezinhlayiyana, kanye nomjikelezo wokusebenza kwesikhungo.
Ingabe ukwelashwa kwegesi elingcolile le-VOC kungabuyisela izincibilikisi esikhundleni sokuzibhubhisa?
Yebo, ukwelashwa kwegesi elingcolisayo le-VOC okusekelwe ekubuyiselweni kusungulwe kahle futhi kuyakhanga ngokwezomnotho lapho i-solvent eyodwa noma ingxube ye-solvent ehlanzekile inenani lokusetshenziswa kabusha. Ukumuncwa kwe-activated carbon nge-steam noma i-nitrogen desorption, okulandelwa ukufinyezwa, kubuyisela i-solvent yekhwalithi ephezulu enqubweni. Ukuhlukaniswa nge-membrane kanye nokufinyezwa okusekelwe ekuqandeni kuyizindlela ezihlukile ezisebenza kahle emindenini ethile ye-solvent. Ukubuyisela kunciphisa kokubili ukukhishwa kwegesi nokuthengwa kwe-solvent entsha, kudala umthombo wembuyiselo oqondile. Nokho, lapho ama-solvent exutshiwe noma engcoliswe kakhulu, ukubhujiswa ngokuvamile kuyindlela esebenzayo kakhulu ngoba izindleko zokuhlanza ziba phezulu kakhulu.
Yiziphi izindleko ezijwayelekile zokuqala kanye nezokusebenza zohlelo lokwelashwa kwegesi elingcolile le-VOC?
Izindleko ziyahluka kakhulu ngezinga lokugeleza komoya, ukugxila kwe-VOC, kanye nobuchwepheshe obukhethiwe, futhi iyunithi encane efakwe ku-skid ingabiza ngaphansi kwezibalo eziyisithupha kuyilapho i-oxidizer enkulu evuselelayo yomugqa omkhulu wokumboza idlula isigidi samadola. Izindleko zokusebenza zilawulwa kakhulu uphethiloli, ugesi, i-catalyst noma ukushintshwa kwe-media, kanye nomsebenzi wokunakekela ojwayelekile. Isistimu ehlanganiswe kahle enokubuyiselwa kokushisa inciphisa ezinye zalezi zindleko ngokukhiqiza isitimu noma amanzi ashisayo asetshenziswa kwenye indawo embonini. Izistimu zokubuyisela empeleni zingakhiqiza umnotho omuhle uma inani le-solvent liphezulu. Izikhungo kufanele zicele ukuhlaziywa kwezindleko eziphelele zobunikazi okuhlanganisa okungenani iminyaka eyishumi yokusebenza ngaphambi kokuthatha isinqumo.
Imishini yokwelashwa kwegesi elingcolile le-VOC idinga ukunakekelwa kangaki?
Ukuhlolwa kwamasonto onke kokwehla kwengcindezi yesihlungi, ukudlidliza kwefeni, nokusebenza kwesivalo kuyisisekelo sohlelo oluhle lokunakekela, kanti ukuqinisekiswa kwamasonto onke kokulinganiswa kwesihlaziyi kuyinqubo ejwayelekile. Ama-thermal oxidizer ngokuvamile adinga ukuhlolwa kwe-refractory minyaka yonke nokuhlanjululwa kwe-heat exchanger, kuyilapho amasistimu e-catalytic edinga ukuhlolwa komsebenzi we-catalyst ngezikhathi ezithile ukuze kutholakale ubuthi obukhulayo kancane kancane. Amasistimu ombhede wekhabhoni kufanele ahlolwe ukugcwala ngokweqile ngesheduli enqunywe amazinga okusetshenziswa. Izikhathi zokuvalwa komsebenzi wokunakekela okukhulu ngokuvamile zihlelwa ukuthi zihambisane nokulungiswa okubanzi kwemboni. Ukugcina amarekhodi anemininingwane okusiza ukubikezela impilo yezingxenye nokuhlela ukushintshwa kwazo ngokunemba.
Ingabe uhlelo lokwelashwa kwegesi elingcolile le-VOC lungakwazi ukubhekana nokuguquguquka kwamazinga okugxila okuvela ekukhiqizeni ngamaqoqo?
Yebo, kodwa uhlelo kufanele lwakhiwe kusukela ekuqaleni lunamandla okwehlisa kanye namandla okugcina ukumunca ukukhuphuka kokugxila. Ama-rotary concentrators kanye nezindawo zokulala zama-adsorber zingenziwa zibe zinkulu ukuze zigcine ukungcola ngesikhathi sokukhishwa okuphezulu bese zikukhipha ngezinga elizinzile kamuva. Ama-thermal oxidizers abhekana nokushintshashintsha kokugxila ngomusa ukwedlula amayunithi e-catalytic ngoba abekezelela ukukhuphuka kwamazinga okushisa aphezulu. Izilawuli zenqubo kufanele zifake izihlaziyi zokugxila ezilungisa ngokuzenzakalelayo umoya wokushisa, izilinganiso zokuphinda zisetshenziswe, kanye nokugeleza kukaphethiloli ngesikhathi sangempela. Ukuqonda okugcwele kokuhlukahluka kokukhishwa kuso sonke isikhathi sokusebenza kubalulekile ngaphambi kokulinganisa kokugcina.
Yimiphi imithetho esebenzayo mayelana nokukhishwa kwe-VOC kwezimboni emazweni ahlukene?
E-United States, i-Clean Air Act kanye nezinhlelo zokusebenzisa zombuso ezihambisana nayo zibeka izidingo ze-Maximum Achievable Control Technology kanye nemikhawulo yokukhishwa kwezinto ezinkulu. I-European Union iphoqelela i-Industrial Emissions Directive kanye nezimiso ezihlobene ne-solvent ezidinga izindlela ezinhle kakhulu ezitholakalayo kanye nokugxila okuqinile kokuphuma. I-China isebenzisa izindinganiso zikazwelonke nezasendaweni, kuhlanganise ne-GB 37822, ezicacisa imikhawulo yokukhishwa kwe-VOCs futhi ziqondise izenzo zokuphoqelela. Izimvume eziningi zihlanganisa umgomo wokusebenza kahle kokubhubhisa kanye nomkhawulo wokugxila kokuphuma ngamamiligremu nge-cubic meter. Ngenxa yokuthi izidingo zishintsha njalo, izikhungo zezimboni kufanele zisebenze nochwepheshe bokuhambisana nomthetho olandelela izibuyekezo zomthetho esifundeni abasebenza kuso.
Ingabe ukumuncwa kwe-carbon activated kuphela kwanele ukuze kuhlangatshezwane nemithetho ephelele?
Ukumuncwa kwekhabhoni esebenzayo kungase kube kwanele lapho ukugxila kwe-VOC kuphansi, ukugeleza kusesilinganisweni, futhi isiphathimandla samukela ukugxila okuphumayo okungafinyeleleka njengokuhambisana nemithetho. Nokho, ukuhambisana nemithetho kuncike ekuvuselelweni ngesikhathi ngoba umbhede wekhabhoni ogcwele ugcina ukusebenza kahle ngokushesha futhi uqala ukukhulula izinto ezingcolisayo ezazibanjwe ngaphambili. Ngakho-ke izikhungo zidinga ukuqapha ukugqama kwesikhathi kanye nohlelo lokuvuselela olulandelwayo ukuze kugcinwe ukuhambisana nemithetho okuqhubekayo. Lapho kudingeka ukusebenza kahle okuphezulu kakhulu kokubhubhisa, abasebenzi bavame ukuhlanganisa ukumuncwa kwekhabhoni nesisihlanzi esincane esishisayo noma esisebenza nge-catalytic somhwamuko wokukhipha. Ukubuyekezwa komklamo okusekelwe emvumelweni kuzoveza ukuthi uhlelo lwekhabhoni oluzimele noma uhlelo oluxubile luyimpendulo ephephile.
Ngingakhetha kanjani umphakeli ofanele wephrojekthi yami yokwelashwa kwegesi elahliwe le-VOC?
Umhlinzeki ofanele uletha izinkomba eziqinisekisiwe embonini yakho, amandla aphelele obunjiniyela, kanye nemodeli esobala yezindleko eziphelele zobunikazi esikhundleni senani eliphansi lokuqala. Funa umlingani ozothatha isampula futhi ahlaziye umsinga wemfucuza wangempela ngaphambi kokuncoma ubuchwepheshe, kanye nalowo onikeza ukufakwa endaweni nokuqeqeshwa kwabasebenzi njengezinsizakalo ezijwayelekile. Qinisekisa ukuthi umthengisi usekela imishini ngezingxenye ezitholakalayo kalula kanye nesevisi yangemva kokuthengisa esabelayo esifundeni sakho. Umlingani oyedwa ophethe umthwalo wokuziphendulela njenge-Haidi Environment (Tianjin) CO.,LTD angaxhumanisa amanzi, umoya, nezinhlelo zokulawula ndawonye, okwenza ukulethwa kwephrojekthi kube lula. Cela izinkomba, vakashela indawo esebenzayo uma kungenzeka, futhi uhlele inkontileka ngokusekelwe ekusebenzeni okuqinisekisiwe kanye nokusebenza kahle kokucekela phansi.
Xhumana
Shiya ulwazi lwakho futhi sizokuthinta.