Coking Indasitiri VOCs Yakakwana Kurapa Solution
Volatile organic compounds (VOCs) zvakakosha precursors yeO3 chizvarwa, uye zvimwe zvezvikamu zvadzo zvine carcinogenicity yakasimba. Mumakore achangopfuura, iyo O3 yepakati mumhepo yepasi rose yakaratidza maitiro ekuwedzera gore negore, uye dambudziko rekusvibiswa kweO3 rave richinyanya kuoneka, iro rine hukama hwepedyo nehuwandu hweVOCs emissions. Mune akawanda maVOC ekusvibisa masosi, kugadzira coking ndeimwe yeakakosha kusvibisa masosi. Mukuita kwekugadzira coking, dambudziko rekubuda kweVOCs gasi rekupedza simba rinonyanya kuoneka, riine akawanda ekubudisa masosi, akawanda anosvibisa uye huturu hwakanyanya, husina kurongeka hunobuda uye humwe hunhu, kusvibiswa kwakakomba kunharaunda yemhepo. Tichifunga nezve kurapwa kwekubikira VOCs gasi remarara, mabhizinesi akakodzera akaedza nekuongorora, akanyanya kuwanda "nhatu nhanho yekugeza + kunyura (kubvisa) yakanamatira" maitiro, matatu nhanho yekugeza + RTO maitiro, nitrogen yekuisa chisimbiso + isina kunaka kudzoreredza maitiro, tsvina gasi kudzoka kupisa uye mamwe maitiro ekurapa. Nekuburitswa kwe "Volatile organic compounds Emission Control Standards for Industrial Enterprises", "Coking Chemical Industry Pollutant Emission Standards" uye mamwe marongero, coking VOCs manejimendi inokurumidzira, zvinoenderana nehunhu hweVOCs eposta gasi mumatanho akasiyana ekuita zvakadzama kurapwa, kuwana yakagadzikana uye yakagadzikana zviyero idambudziko rekukurumidzira kumabhizinesi.
Kuongororwa kweakanyanya masosi eVOC muindasitiri yekubika
MaVOC ari muindasitiri yekubika anonyanya kubva kumakemikari ekugadzira kudzoreredza maitiro: iyo huru yekusvibisa sosi yeinotonhora dhiramu pombi yekuburitsa tar, ammonia uye mamwe matangi ekuchengetera, anonyanya kugadzira benzo [a] pyrene, hydrogen cyanide, phenols, naphthol, isiri-methane yakazara hydrocarbon, ammonia, hydrogen sulfide sulfide, etc. iyo desulfurization regeneration zvivakwa uye mapaipi ekuburitsa ega rega rekuchengetedza tangi, ayo ari kunyanya ammonia uye hydrogen sulfide. Makuru anosvibisa ammonium sulfide chikamu ammonium sulfide drying equipment, ammonium sulfide solutions, ammonia storage tanks, etc., anonyanya kugadzira particulate matter, ammonia, etc. Mahombe anosvibisa echikamu chekugezesa crudefined benzene rectification unit, discharge tank separator yega ega, benzene processing unit, discharge tank separator yega yega. kunyanya kugadzira benzene nebenzene series, mahydrocarbons, nezvimwewo. MaVOC aya zvakare ane muchetura uye unokuvadza, zvinobatika uye zvinoputika. Nekuda kweiyo yakareba uye yakaoma maitiro eiyo indasitiri yekubika, zvikamu zveVOC zvakasiyana uye zvakaoma kuunganidza nekugadzirisa. Kazhinji, tangi yekuchengetera ine yakanaka airtightness uye yakaderera okisijeni yemukati inotora iyo yakaipa yekumanikidza kudzoreredza kuenzanisa maitiro;
Nekuda kwehuwandu hwayo hweokisijeni, gasi rinoparadzira harigone kupinda muhurongwa hwekudzoreredza gasi, saka rinonyanya kurapwa nemaitiro ekuunganidza kwekuparadzira uye nepakati kudzoka kune coke oven incineration kana imwe oxidation incineration. Kuendesa kure-kure kweVOCs gasi remarara kune matambudziko akadai sekuderera kwekumanikidza uye naphthol mumarara gasi zviri nyore kupenya uye kuvhara pombi. Panguva ino, zvakakodzera kuvaka imwe incinerator.
Xinjieyuan Technology VOCs Kurapa Yakakwana SolutionsMune iyo yese coking process, kugadzirwa kwemakemikari kudzoreredza ndiyo musangano unogadzira maVOC mazhinji, kunyanya munzvimbo yekudzoreredza yakanyanya kukomba, saka maVOC manejimendi ezvidyarwa zvekubikira anonyanya kutariswa munzvimbo yekudzoreredza. Kune midziyo yakawanda inobatanidzwa munzvimbo yekudzoreredza, uye gasi rekupedza rematangi akasiyana rakabatana zvakananga nemhepo, zvichikonzera kunhuhwirira kwakakomba. Ammonia, tar, naphthalene, phenol, cyanide, methane hydrocarbons nezvimwe zvinhu zvichapukunyuka mumhepo, kunyanya benzene, hydrogen sulfide nezvimwe zvinhu, asi zvakare ine muchetura wakasimba, kusvibiswa kwezvakatipoteredza, zvinokanganisa zvakanyanya nharaunda uye hutano hwevashandi vakakomberedza. Xinjieyuan VOCs yakakwana yekurapa mhinduro, zvinoenderana neiyo coking bhizinesi coking, gasi kucheneswa uye kugadzirwa kwemakemikari kudzoreredza, kuchengetedza chigadzirwa, phenol cyanide tsvina yemvura kurapwa kwemaitiro akasiyana eVOCs maitiro uye nzvimbo dzekuburitsa zvakasiyana, Iyo VOCs kurapwa maitiro anoburitswa nemakemikari ekugadzira system yakakamurwa kuita izere yakaipa yekumanikidza kudzoreredza chiyero, kupera simba kwegasi, kudzoka kweokisijeni tekinoroji, kudzoka kweiyo okisijeni tekinoroji. zvakasiyana-siyana, zvakasiyana-siyana zvekushandiswa kwezviitiko zveVOCs zvakadzika kurapa mhinduro.
Yakazara yakaipa kudzoreredza chiyero maitiro (yakaderera okisijeni exhaust gasi)Iyo gasi yakaunganidzwa ine yakanaka airtighness, yakaderera okisijeni yemukati uye yakakwirira yakawedzera kukosha, senge inotonhora dhiramu chikamu, benzene eluting chikamu uye mafuta depot chikamu, inobatwa neoiri washing tower munzvimbo imwe neimwe, uye yozovharwa ne nitrogen uye yakadzoserwa kugasi system pasi pesimba rakazara rakaipa. Iyi nzira inoda kuvharwa kwakanaka kwetangi, kuitira kuti mhepo ive isiri nyore kupinda munzvimbo isina kunaka yekumanikidza, inogona kudzora zviri nani iyo okisijeni yemukati wegasi.
Kushanda musimboti: Chekutanga, yakavhurika uye yakavharwa nitrogen yekuisa chisimbiso chinoiswa pane yakavharwa tangi. Kana tangi iri mukati nekubuda kwezvinhu, iyo nitrogen sealing valve inoshandiswa kugovera nitrogen uye nitrogen discharge, uye chikamu chemuswe gasi chinoburitswa nenitrogen gasi. Batanidza yakavharwa tangi yekuburitsa vharafu kune iyo yakaipa yekumanikidza system, isa seti ye micro negative pressure yeokisijeni yekudzora mudziyo pamberi pe fan, isa imwe kudzvanywa, ingoyamwa gasi rekuburitsa rinoburitswa nematangi aya mune yakashata yekumanikidza system, asi kwete yakawandisa okisijeni mune yakaipa dzvinyiriro system kana fan fan yachinja, nekudaro ichikonzera njodzi dzekuchengetedza.
Nitrogen sealing tekinoroji inonyanya kuiswa pakuvharwa kwematangi munzvimbo yedhamu. Nitrogen inoshandiswa kuwedzera nzvimbo yegasi mutangi kana mwero wemvura mutangi wadonha kana tembiricha yadzikira. Nekuzadza tangi nenitrogen pamusoro peyero yemvura, iyo yemvura yepakati inodzivirirwa kubva mukuenderera mberi gasification uye yepakati gasification kutiza inodzivirirwa. Kana iyo tangi yekudya ichikwira kana tembiricha ichikwira, gasi rinokwira mutangi rinokwira, nitrogen discharge valve inovhura uye nitrogen inopukunyuka, kuitira kuchengetedza chiyero chekumanikidza mutangi. Mushure mekunge tangi yekuchengetera yakavharwa nenitrogen, inogona kunyatso kudzikisa kubuda kwetangi. Nzvimbo yegesi mutangi inonyanya kusanganiswa kwegasi rinopisa uye nitrogen, iyo isingagadziri musanganiswa wegasi rinoputika. Inogona kuvandudza kuchengetedza kwekugadzirwa kwebhizinesi, kuderedza huturu uye inokuvadza midhiya munzvimbo yekushanda, uye kuchengetedza zvakaringana nharaunda uye kuchengetedza hutano hwemuviri nepfungwa dzevashandi. Panguva imwecheteyo, huwandu hwegasi hwekubuda mukati megasi system nenitrogen yekuisa chisimbiso kurapwa idiki kwazvo (iyo yakawanda yakawanda iri pasi pe1000m3), uye haizokanganisa gasi system pipeline.
Process flow
(1) Isa kusvetwa kwepombi pamberi peiyo micro-negative pressure control okisijeni mudziyo se -100-200Pa, uye kukweva kwetangi rinoburitsa chiteshi se 0~-50Pa. Zvinoenderana nehurefu hwepombi kubva mutangi kuenda kune micro negative pressure control okisijeni mudziyo uri pamberi peinofuridza, ine hurefu hwakasiyana hwepombi uye kupikisa kwakasiyana, gadzirisa kusveta kwetangi rinoburitsa chiteshi semutengo wakaiswa nedhigirii yekuvhura yevharuvhu patangi; (2) The micro negative pressure pressure control device yakabatana ne blower reflux pipe kana fan front pipe, uye kusveta kwe micro negative pressure control device inogadziriswa pa -1000 ~ -5000Pa kuburikidza nevhavha inogadzirisa; (3) Iyo yakakosha yemukati chimiro cheiyo micro negative pressure yeokisijeni yekudzora mudziyo inoumbwa nekusveta pombi, kumanikidza kudzikamisa mvura chisimbiso kamuri, gasi remvura chisimbiso, vacuum kamuri, baffle, regulating vharafu, reflux pombi, vacuum gauge, mafashama pombi, pombi yekupa mvura, nezvimwe. pombi, uye kureba kwechisimbiso chemvura kunoshanduka nekuchinja kwekudhonza. Iyo gasi yakadzoserwa yekubuditsa inogona kungopaza nepakati pechisimbiso chemvura kuita vacuum system, uye chengetedza kusvetwa kwepombi inokuvadza yepombi yepombi. Iyo mhute yemvura inotakurwa negasi inonamirwa pabaffle kuti ipinde mupombi reflux uye kudzokera kumvura seal system. Imwe mhute yemvura inounzwa mugasi negasi, saka zvinodikanwa kushandisa pombi yekuwedzera yemvura kuti uve nechokwadi chekukwirira kwechisimbiso chemvura. Iyo yese maitiro haina emission, haina kuvuza, yakachengeteka uye yakavimbika, uye inonyatso ziva zero emission kurapwa kwekemikari epositi gasi. Kusvetwa kwetangi rega rega kunoiswa ku -100 ~ 0Pa, uye kuyamwa kwetangi rega rega kunoiswa zvinoenderana nehurefu, caliber uye kuramba kwepombi. Iyo tangi inoisirwa yakavhurika uye yakavharwa nitrogen yekugovera vharafu uye nitrogen discharge valve, uye kumhanya kwefani kunogadziriswa ne frequency conversion controller. Kusveta kunogadziriswa nevhavha inogadzirisa pane imwe neimwe kuti ione kuti gasi haizopukunyuki mumhepo, uye panguva imwe chete, inogona kuve nechokwadi chokuti kusveta kwakakwana kunochengetwa. Iyo nzira inosarudza michina ine dhigirii yakakwira otomatiki, uye chiratidzo chakabatana nepakati control system yepakati yekudzora kamuri yekugadzirwa kwemakemikari, iyo inoshandiswa nevashandi vepakati pekutonga imba pasina kuwedzera mamwe maopareta. Kuti udzivise kuvharika kwepombi, pombi yekuchenesa pombi inoiswa papombi yekuunganidza gasi, uye kuchenesa kunoitwa nguva nenguva.
Maitiro akanakira: MaVOCs negative pressure balance recovery process yakagadziridzwa neXinjieyuan Technology haina nzvimbo, yakaderera mari yekudyara uye mutengo wekushanda, kunyatsorapwa, zero emissions, uye VOC yakadzoserwa tara, ammonia nebenzene inogona kushandurwa kuita zvimwe zvigadzirwa mushure mekudzokororwa nenzira dzakaita sebenzene washing tower, kuvandudza mwero wekupora uye kuvandudza zvakanyanya mabhenefiti ehupfumi hwefekitori.
Discharge type inokuvadza exhaust gasi inodzosera combustion process (yakakwira okisijeni exhaust gasi)Mukuita uku, maVOC anopedza gasi ane okisijeni yakakwira uye yakaderera yakawedzera kukosha muchikamu che desulfurization uye ammonium sulfide chikamu chinopinzwa mune yakashata yekumanikidza system yecoke oven sekugovera kwemhepo kutora chikamu mukupisa kwehovhoni yecoke uye zvikamu zveVOCs zvakazara oxidized uye yakaora.
Kushanda musimboti: Iyo gasi yakaunganidzwa ine yakakwira okisijeni yemukati uye yakaderera yakawedzera kukosha muchikamu chekugadzirwa kwemakemikari inounzwa mumoto wecoke hovhoni sekugovera kwemhepo mushure measidhi yekugezesa shongwe, alkali yekuwachira shongwe uye shongwe yekugezesa mvura, kuitira kuti uwane chinangwa chekunyatso oxidation uye kuora kweVOCs. Parizvino, mazhinji emabhizinesi ekubikira akaisa coke oven flue gasi desulfurization uye denitration mudziyo, ichi chikamu chesarufa dioxide, nitrogen oxide ichabviswa mu desulfurization uye denitration mudziyo, inogona kunyatso kuburitsa zero emissions yeVOCs kurapwa. Kuti uve nechokwadi chekuchengetedzwa, gasi rinopisa rinopisa rinogadzika risati raiswa muvheni yekoke kuti inopisa, iyo inogona kutarisa kuchinja kwezvinhu zvinopisa uye zvinoputika mumhepo inoputika munguva chaiyo uye kutumira chiratidzo kune DCS control system. Kana chikamu chechikamu chinosvika pamuganhu wakatemerwa, iyo DCS inovhundutsa uye inovhura otomatiki valve yekuparadzira mhepo; Kana iyo chikamu chemukati chasvika pamuganho wepamusoro, iyo otomatiki vharafu muhovheni yecoke inogurwa kuti ive nechokwadi chekuchengetedzwa kwekugadzira.
Process zvakanakira(1) Deredzai mari yekudyara pakuvaka nekushandisa hovhoni yekutanga yecoke semudziyo wekupisa; (2) Mutengo wakaderera wekushandisa, maVOC mugasi rekuburitsa mushure mekupisa simba rekupisa rinogona kudzokororwa, kuderedza kushandiswa kwegasi, kuderedza dentrification kumanikidza kweiyo kumashure-yekupedzisira SCR; (3) Kuchengetedzeka kwepamusoro, dhigirii yakakwira otomatiki, inogona kuona isina kutarisirwa; (4) Nitrogen oxide uye sulfur dioxide inogadzirwa mushure mekupisa gasi kupisa kunogona kubviswa zvakananga ne coke oven flue gasi desulfurization uye denitration mudziyo, pasina kukanganisa kwetsika yekupisa nzira.
Rotary regenerative yakazvimirira combustion process (RTO)
Combustion nzira ndiyo yazvino kucheneswa kwe organic waste gasi (VOCs) yakanyanya kurongeka maitiro, yave ichizivikanwa zvizere nemaindasitiri akasiyana. Regenerative Thermal Oxidizer (RTO), inozivikanwawo seregenerative incinerator. Iyo tekinoroji ndeyemhando yekupisa nzira, chengetedzo yekupisa, yekupisa oxidation yekubatanidza mune imwe yeVOCs yekuchenesa tekinoroji.
Kushanda musimboti: Shandisa mapaipi uye kukwezva dhizaini mafeni kuti utore iyo inopotera gasi remhepo iri padyo, uye gasi rekubuda kwega rega rega rakarongedzerwa kugezeswa uye pretreatment. NH3 mugasi rekubuditsa inogezwa nemvura inonyura mupickling tower uye inopindirana neH2SO4 mumvura inonyura, uye mvura inonyura mupickling tower inobuditswa kuna amai doro tangi rechikamu cheammonium sulfide. Mushongwe yekuwachira alkali, mhinduro yeNaOH inoshandiswa kubata H2S, HCN nemamwe magasi ane acidic mugasi rekuburitsa, uye mvura inonyura mushongwe yekuwachira yealkali inoiswa mutangi rekujekesa. Mushure mokunge gasi remarara rechikamu chekuchera munyu rakashambidzwa, zvikamu zvemunyu mumarara gasi zvinoshambidzwa; Iyo gasi yekubuda inounganidzwa mupombi huru yekuburitsa gasi mushure mekugezwa, uye yozotumirwa kune gasi-mvura yekuparadzanisa neiyo relay fan yekuparadzaniswa kwegasi-mvura. Mushure mekutevedzana kwekutarisa kwepamhepo kutariswa uye kudzvanywa / kuyerera kwekutonga mukuita, iyo huru yakafemerwa dhizaini feni inotumirwa kune inotenderera inodziya yekuchengetera yakazvimirira burner (RTO) yekupedza gasi yekuchenesa kurapwa, uye pakupedzisira kuwana isina kukuvadza.
Process zvakanakira
(1) Kurasa gasi kurapwa sisitimu uye coke oven yekugadzira system haina kukanganisa mumwe nemumwe, yakazvimirira yega uye yakaderera mutengo wekushandisa, hapana chikonzero chekudya coke oven gasi; (2) VOCs kucheneswa mwero ≥97% (kusvika 99.5%), diki kukanganisa papombi mhepo kumanikidza (± 25Pa, kugadzikana kushanda), yakazara kupisa kudzoreredza mwero ≥95%; (3) Usave nemhedzisiro pamuviri wehovhoni yecoke, kuti udzivise kukanganiswa kwenguva refu kwekudzoka gasi rekuburitsa pachoto checoke; (4) Iyo ine yakakwira exhaust gasi yekuchenesa mashandiro pane kudzoka kupisa kuti isangane nepamusoro emission zvinodiwa mune ramangwana; (5) Rotary valve type RTO system inogadzirisa matanho ekuchengetedza makumi matatu, kubva pamudzi kubvisa njodzi dzekuchengetedza; (6) Yakakwira degree re otomatiki, iyo system yese inogona kuona otomatiki kushanda, isina kutarisirwa.
VOCs kurapwa kesi mune marasha ekugadzira workshop tsvina gasi kurapwa chirongwa
Iyo yepakutanga yekurapa nzira yemarara gasi kubva ku desulfurization, ammonium sulfate uye nzvimbo yekubvisa munyu mumashopu ekugadzira makemikari ndeyekuiunganidza zvakafanana uye wozopinda muasidhi yekugezesa uye alkali yekuwachira shongwe yekugezesa, uye wozoitumira kune coke ovheni yekusanganisa uye kupisa. Tichifunga nezvemamiriro ekuchengetedza kwezvakatipoteredza ari kuramba achiwedzera, maitiro ekutanga ekurapa ave kutadza kuzadzisa zvinodiwa zveVOC zvakadzama kurapwa.
Mushure menguva yekuratidzira uye kuferefeta, kambani yedu inotora yakasanganiswa nzira yekuwachira-matanho ekugeza + gasi-mvura kupatsanurwa + inotenderera yekudziya yekuchengetera yakazvimirira tekinoroji yekupisa (RTO) pahwaro hwekuwana purofiti yakazara yekare. Iyo gasi yekubuda yega yega yega inoshambidzwa uye inofanotemerwa nemhando. NH3 mu exhaust gasi inogezwa nemushonga wemvura uri mupickling tower uye inopindirana neH2SO4 mumvura inonyudza. Mvura inonyura mupickling tower inodururwa kune tangi redoro raamai rechikamu cheammonium sulfide. Mushongwe yekuwachira alkali, mhinduro yeNaOH inoshandiswa kubata H2S, HCN nemamwe magasi ane acidic mugasi rekuburitsa, uye mvura inonyura mushongwe yekuwachira yealkali inoiswa mutangi rekujekesa. Mushure mokunge gasi remarara rechikamu chekuchera munyu rakashambidzwa, zvikamu zvemunyu mumarara gasi zvinoshambidzwa; Iyo gasi yekubuda inounganidzwa mupombi huru yekuburitsa gasi mushure mekugezwa, uye yozotumirwa kune gasi-mvura yekuparadzanisa neiyo relay fan yekuparadzaniswa kwegasi-mvura. Mushure mekutevedzana kwekutsvaga kwepamhepo kutariswa uye kudzvanywa / kuyerera kwekutonga mukuita, iyo huru induced dhizaini feni inotumirwa kune inotenderera yekudziya yekuchengetera yakazvimirira burner (RTO) yekupedza gasi rekuchenesa kurapwa. VOCs≤20mg/Nm3 (isina-methane yakazara hydrocarbon) mushure mekushandurwa; NOx≤35mg/Nm3; SO2≤15mg/Nm3; Particulate matter ≤10mg/Nm3; NH3≤5mg/Nm3; H2S≤0.5mg/Nm3; HCN≤0.5mg/Nm3, inosangana zvizere nezvinodiwa zveVolatile Organic Matter Emission Control Standard for Industrial Enterprises, Pollutant Emission Standard yeCoking Chemical Indasitiri uye ultra-ultra-low emission yezvinosvibisa, uye ine zvakanakira zvekubvisa kwakanyanya, kuvaka kwakaderera uye mutengo wekushanda, chengetedzo uye kuvimbika.
