Icala |Zisetshenziswa kanjani izifutha ngezikulufu ezingenawo uwoyela kanye nezifutha ezimaphakathi ukuze kuguqulwe amandla okonga embonini kasimende?
Ubuchwepheshe be-SCR denitrification, okungukuthi, indlela ekhethiwe yokunciphisa i-catalytic, igesi ye-ammonia ifafazwa kudivayisi yokukhishwa kwegesi yokushisa ephezulu njenge-ejenti ye-denitrification.Ngaphansi kwesenzo se-catalyst, i-NOx ku-flue gas ichithwa ibe i-N₂ ne-H₂O engeyona enobuthi futhi engangcolisi.Kubhayela osebenzayo we-SCR, izinga lokukhishwa kwe-denitrification lifinyelela ku-80-90%, futhi ukuphuma kwe-ammonia kungaphansi kuka-3 mg/Nm³, okuhambisana kakhulu nezinye izimfuneko eziphezulu ze-denitrification ezisebenza kahle zezitshalo zikasimende.
① I-ammonia ewuketshezi ithunyelwa isuka elolini ye-ammonia ithangi eliwuketshezi iye ethangini lokugcina i-ammonia nge-compressor ethulayo.
②Ngemva kokuhwamuka ku-ammonia ethangini lomhwamuko, ingena endaweni yokubhayela ngethangi le-ammonia buffer kanye nepayipi lokuthutha.
③Ngemva kokuxubana ngokulinganayo nomoya, ingena ku-reactor ye-SCR ngevalvu yokuhlola yokusabalalisa ukuze kutholakale ukusabela kwangaphakathi.I-Reactor ye-SCR ifakwe phambi kwe-air preheater, futhi igesi ye-ammonia ingaphezu kwe-SCR reactor.
④Hlanganisa intuthu ngokulinganayo usebenzisa isifutho esikhethekile
⑤Ngemva kokuxubana, i-flue gas idlula isendlalelo se-catalyst ku-reactor ukuze kuncishiswe ukusabela.
Ubuchwepheshe bokuvunguza kwe-air compressor air soot
Uma ukhetha indlela yokufutha umsizi, ngaphezu komphumela wokuvunguza kwe-soot, umphumela wokugqoka ku-catalyst nawo kufanele ucatshangelwe.Njengamanje, izindlela zokuphehla insila ezivame ukusetshenziswa ezinhlelweni ze-SCR denitration zihlanganisa ukuvunguza kwensisi ye-sonic, ukuvunguza kwensisi yesitimu kanye nokuvunguza komsi womoya.
Kuhlanganiswe nezici zentuthu yeziko likasimende kanye nothuli, kunzima kuma-sonic blower soot ukuzivumelanisa nenani elikhulu kanye ne-viscosity ephezulu yothuli lukasimende lwe-flue gas.Ngaphezu kwalokho, ukukhiqizwa kwegesi yesitimu esitshalweni sikasimende kuncane, ngakho kufaneleka kakhulu ukusebenzisa umoya ocindezelwe ukufutha umule.
Eminyakeni yamuva nje, ngokuthuthukiswa nokuthuthukiswa kwemboni kasimende emkhakheni wokuvikelwa kwemvelo, amazinga okukhishwa kwegesi aye akhuphuka kakhulu.Ukuvimbela nokulawula ukungcoliswa komoya kanye nokunciphisa ukukhishwa kwegesi ye-flue nitrogen oxide sekuyimisebenzi ephuthumayo ebhekene namabhizinisi okukhiqiza usimende.Ubuchwepheshe be-SCR (Catalytic Reduction) busebenza kahle kakhulu futhi bungafinyelela ukukhishwa okuphansi kakhulu kwama-flue gas nitrogen oxides kanye nokuphunyuka kwe-ammonia ngaphansi kwesimo sokusetshenziswa okuphansi kwe-ammonia.Eminyakeni yamuva nje, ubuchwepheshe be-SCR yegesi ye-cement kiln flue buye benza inqubekelaphambili ethile, buhlinzeka ngesiqinisekiso esisebenzayo sezinkampani zikasimende ukuze zithole ukukhishwa kwe-ultra-low.
