Njengamanje, ingcindezi yokuvikela imvelo yesitshalo sokwenza insimbi esifubeni esijikelezayo inkulu kakhulu. Phakathi kwazo, uhlelo lokususa uthuli lwegesi yomoya efubeni esifubeni esijikelezayo luyinto eza kuqala, futhi kuyadingeka ukwenza ushintsho oluhlanzekile ukuze kufezwe ukukhishwa okuphansi kakhulu. Ngakho-ke, ukukhethwa nokusetshenziswa kobuchwepheshe bokukhipha uthuli esifubeni esijikelezayo obusebenza kahle, obuphephile futhi obungasetshenziswa kakhulu sekuyindaba ephuthumayo emabhizinisini ensimbi nensimbi.
Indlela emanzi kanye nendlela eyomile yokukhipha uthuli lwegesi yesithando esijikelezayo inezinzuzo zayo
Ubuchwepheshe bokususa uthuli olumanzi olujikelezayo olusebenzisa i-oksijini bufinyezwa ngokuthi i-OG. I-OG yisifinyezo se-Oxygen roting furnace Gas Recovery ngesiNgisi, okusho ukuthi i-oxygen roting furnace gas recovery. I-rotation furnace esebenzisa ubuchwepheshe be-OG ikhiqiza inani elikhulu le-CO flue gas enokushisa okuphezulu kanye nokuhlushwa okuphezulu esithandweni ngenxa yokusabela okunamandla kwe-oxidation ngesikhathi sokuvunguza. I-flue gas icindezela ukungena komoya ozungezile ngokuphakamisa isiketi kanye nokulawula ingcindezi ye-flue gas ngaphakathi kwe-hood. Uma ingashiswanga, ubuchwepheshe busebenzisa i-vaporization cooling flue ukuze ipholise i-flue gas, futhi ngemva kokuhlanzwa yi-Venturi tube dust collector enezigaba ezimbili, ingena ohlelweni lokubuyisa nokukhulula igesi.
Ubuchwepheshe bokususa uthuli olomile lwesithando esijikelezayo bufinyeziwe ngokuthiLT. ILTIndlela yasungulwa ngokubambisana nguLurgi noThyssen eJalimane.LTisifinyezo samagama ezinkampani ezimbili. Lobu buchwepheshe busebenzisa i-vaporization cooler ukupholisa igesi yomoya, futhi ngemva kokuhlanzwa yi-cylindrical dry electrostatic precipitator, bungena ohlelweni lokubuyisa nokukhulula igesi. Lo mthetho waqala ukusetshenziswa kumaphrojekthi okubuyisa igesi ngo-1981.
Ubuchwepheshe bokususa uthuli olujikijelwayo lwesithando somlilo bunokutshalwa kwezimali okukhulu kanye kuphela, isakhiwo esiyinkimbinkimbi, izinto eziningi ezisetshenziswayo, kanye nobunzima obukhulu bobuchwepheshe. Izinga lokukhushulwa kwemakethe ezweni lakithi lingaphansi kuka-20%. Ngaphezu kwalokho, ubuchwepheshe bokususa uthuli olomile busebenzisa i-dry electrostatic precipitator enkulu ukususa uthuli lwesithando somlilo olujikelezayo oluyinhloko oluqinile. Kulula ukuqoqa uthuli futhi ukuphuma kothuli akuzinzile.
Uma kuqhathaniswa nenqubo yokususa uthuli olomile, inqubo yokususa uthuli olumanzi ye-OG inesakhiwo esilula, izindleko eziphansi, kanye nokusebenza kahle kokuhlanza okuphezulu, kodwa inezinkinga ezifana nokusetshenziswa kwamandla aphezulu, ukusetshenziswa kwamanzi amaningi, ukwelashwa kwendle okuyinkimbinkimbi, kanye nezindleko zokusebenza eziphezulu. Ngaphezu kwalokho, ubuchwepheshe bokususa uthuli olumanzi buhlanza lonke uthuli emanzini kungakhathaliseki ukuthi lungakanani usayizi wezinhlayiya, okuholela enanini elikhulu lendle yokususa uthuli. Nakuba izinga lobuchwepheshe lezinqubo zokususa uthuli olomile nolumanzi liye lathuthukiswa njalo enkambisweni yendawo, amaphutha azo angaphakathi awakaxazululwa.
Bephendula kulesi simo esingenhla, ochwepheshe bemboni baphakamise ubuchwepheshe bokususa uthuli olungomile kancane eminyakeni yamuva, obukhuthazwe eShayina. Njengamanje, inani lezitofu ezijikelezayo ezisebenzisa ubuchwepheshe bokususa uthuli olungomile kancane lidlula inani lezitofu ezijikelezayo ezisebenzisa ubuchwepheshe bokususa uthuli olomile kancane. Inqubo yokususa uthuli olungomile kancane isebenzisa i-dry evaporative cooler ukuze ibuyise u-20%-25% womlotha owomile, ogcina izinzuzo zokususa uthuli olumanzi futhi unqobe amaphutha obuchwepheshe bokususa uthuli olomile nolumanzi. Ikakhulukazi, lobu buchwepheshe bungaguqula inqubo yokususa uthuli olumanzi ngaphandle kokuyiqeda ngokuphelele futhi buyenze kabusha njengenqubo yokususa uthuli olomile, ukuze izakhiwo zokuqala zigcinwe ngezinga elikhulu futhi izindleko zokutshalwa kwezimali zingongiwe.
Isikhathi sokuthunyelwe: Septhemba-11-2023