UKUTSHINTSHWA KWEGESI YEFLUE EMNYAMA NGOKUNXITYISWA KWELIME/ILIMESTERONE

Iimbonakalo

• Ukusebenza kakuhle kwe-desulphurization engaphezulu kwe-99% kunokufezekiswa
• Ukufumaneka okungaphezulu kwe-98% kunokufezekiswa
• Ubunjineli abuxhomekekanga kwindawo ethile
• Imveliso ethengiswayo
• Umsebenzi womthwalo wenxalenye ongenamkhawulo
• Indlela enenani elikhulu leereferensi kwihlabathi liphela

Amanqanaba eNkqubo

Amanqanaba abalulekileyo enkqubo yale ndlela yokukhupha i-sulphurization emanzi ngala:

• Ukulungiswa kunye nomthamo wokufunxa
• Ukususwa kwe-SOx (HCl, HF)
• Ukususa amanzi kunye nokulungisa imveliso

Kule ndlela, ilitye lekalika (iCaCO3) okanye i-quicklime (iCaO2) zingasetyenziswa njengesifunxi. Ukukhethwa kwesithako esinokongezwa somile okanye njengesithako kwenziwa ngokusekelwe kwiimeko ezithile zomda weprojekthi. Ukususa ii-sulphur oxides (i-SOx) kunye nezinye izinto ezine-asidi (i-HCl, i-HF), igesi ye-flue iziswa kwindawo enxulunyaniswa kakhulu nesithako esiqulethe isithako kwindawo yokufunxa. Ngale ndlela, indawo enkulu yomphezulu ifumaneka ukuze idluliselwe ngobuninzi. Kwindawo yokufunxa, i-SO2 evela kwigesi ye-flue isabela kwisithako ukuze yenze i-calcium sulphite (i-CaSO3).

I-limestone slurry equlethe i-calcium sulphite iqokelelwa kwi-absorber sump. I-limestone esetyenziselwa ukucoca iigesi ze-flue isoloko yongezwa kwi-absorber sump ukuqinisekisa ukuba amandla okucoca e-absorber ahlala engaguquki. I-slurry emva koko ipompelwa kwindawo yokufunxa kwakhona.

Ngokuvuthela umoya kwi-absorber sump, i-gypsum yenziwa nge-calcium sulphite kwaye isuswa kwinkqubo njengenxalenye ye-slurry. Ngokuxhomekeke kwiimfuno zomgangatho wemveliso yokugqibela, kwenziwa unyango olongezelelweyo ukuvelisa i-gypsum ethengiswayo.

Ubunjineli bezityalo

Kwi-wet flue gas desulphurisation, kuye kwakho ii-open spray tower absorbers ezahlulwe zangamacandelo amabini aphambili. Ezi ziindawo zokufunxa ezivezwe kwi-flue gas kunye ne-absorber sump, apho i-limestone slurry ibanjwa khona kwaye iqokelelwe. Ukuthintela ukubekwa kwi-absorber sump, i-slurry ixhonywa ngeendlela zokuxuba.

Igesi yolwelo ingena kwi-absorber engaphezulu kwenqanaba lolwelo ize idlule kwindawo yokufunxa, equka amanqanaba okutshiza ahambelanayo kunye ne-mist eliminator.

I-limestone slurry efunxwa kwi-absorber sump itshizwa kakuhle kunye ne-flue gas ngokusebenzisa amanqanaba okutshiza. Ukulungiswa kwee-nozzles kwi-spray tower kubaluleke kakhulu ekusebenzeni kakuhle kwe-absorber. Ukulungiswa kokuhamba kwamanzi ke ngoko kuyimfuneko kakhulu. Kwi-mist eliminator, amathontsi athwalwa kwindawo yokufunxa yi-flue gas abuyiselwa kwinkqubo. Kwindawo yokuphuma kwe-absorber, igesi ecocekileyo iyagcwala kwaye ingasuswa ngokuthe ngqo nge-cooling tower okanye i-wet stack. Ngokhetho, igesi ecocekileyo ingafudunyezwa kwaye ihanjiswe kwi-stack eyomileyo.

I-slurry ekhutshwe kwi-absorber sump isuswa emanzini nge-hydrocyclones. Ngokuqhelekileyo le slurry exutywe ngaphambili isuswa emanzini ngokuhluzwa. Amanzi, afunyenwe kule nkqubo, anokubuyiselwa kakhulu kwi-absorber. Inxalenye encinci isuswa kwinkqubo yokujikeleza kwegazi ngendlela yokuhamba kwamanzi amdaka.

Ukususwa kwerhasi yolwelo kwizityalo zoshishino, kwizityalo zamandla okanye kwizityalo zokutshisa inkunkuma kuxhomekeke kwimilomo eqinisekisa ukusebenza ngokuchanekileyo ixesha elide kwaye imelana neemeko ezinzima kakhulu zokusingqongileyo. Ngeenkqubo zayo zemilomo, iLechler inikezela ngezisombululo zobungcali nezijolise ekusetyenzisweni kwezixhobo zokucoca okanye izixhobo zokufutha kunye nezinye iinkqubo zokususa irhasi yolwelo (FGD).

Ukucoca nge-sulphurization emanzi