UKUTSHATYISWA KWEGASI YOMFULU OMNZI NGEKIKAlika/ULUNENGWE LWE-LIMESTONE

Iimbonakalo

• Ukusebenza kwe-desulphurisation ngaphezu kwe-99% kunokufezekiswa
• Ubukho obungaphezu kwama-98% bunokufikelelwa
• Ubunjineli abuxhomekeke kuyo nayiphi na indawo ethile
• Imveliso ethengiswayo
• Umsebenzi wokulayisha inxalenye engenamkhawulo
• Indlela enenani elikhulu leembekiselo kwihlabathi

Amanqanaba eNkqubo

Amanqanaba enkqubo ebalulekileyo yale ndlela yokususa isulphurisation emanzi zezi:

• Ukulungiselela i-absorbent kunye ne-dosing
• Ukususwa kwe-SOx (HCl, HF)
• Ukukhutshwa kwamanzi kunye nokulungiswa kwemveliso

Kule ndlela, i-limestone (CaCO3) okanye i-quicklime (CaO) ingasetyenziswa njengento yokufunxa. Ukukhethwa kwesongezo esinokongezwa okomileyo okanye njenge-slurry kwenziwa ngesiseko seemeko zemida yeprojekthi. Ukususa i-sulfure oxides (i-SOx) kunye nezinye izakhi ze-acidic (HCl, i-HF), i-flue gas iziswa kuqhagamshelwano olunzulu kunye ne-slurry equkethe i-additive kwindawo yokufunxa. Ngale ndlela, owona mmandla mkhulu unokubakho wenziwa ukuba ufumaneke ukuze udluliselwe ngobuninzi. Kwindawo yokufunxa, i-SO2 esuka kwirhasi yeflue iphendula kunye ne-absorbent yenze i-calcium sulphite (CaSO3).

I-limestone slurry equlethe i-calcium sulphite iqokelelwa kwi-absorber sump. I-limestone esetyenziselwa ukucoca i-flue gases yongezwa ngokuqhubekayo kwi-absorber sump ukuqinisekisa ukuba umthamo wokucoca we-absorber uhlala uhleli. I-slurry iphinda impontshelwe kwindawo yokufunxa kwakhona.

Ngokuvuthela umoya kwi-absorber sump, i-gypsum yenziwe kwi-calcium sulphite kwaye isuswe kwinkqubo njengenxalenye ye-slurry. Ngokuxhomekeke kwiimfuno zomgangatho wemveliso yokugqibela, unyango olongezelelweyo lwenziwa ukuvelisa i-gypsum ethengiswayo.

Ubunjineli beZityalo

Kwirhasi emanzi ye-desulphurisation, i-open spray tower absorbers ziye zaphumelela ezo zahlulwe zaba ziindawo eziphambili ezimbini. Le yindawo yokufunxa evezwe kwirhasi ye-flue kunye ne-absorber sump, apho i-limestone slurry ibanjwe kwaye iqokelelwe. Ukuthintela iidiphozithi kwi-absorber sump, i-slurry imisiwe ngeendlela zokuxuba.

Irhasi yeflue iqukuqelela kwisibambisi ngaphezu komgangatho wolwelo ize ke iphumele kwindawo yokufunxa, equka amanqanaba okutshiza adlulanayo kunye nesishenxisi senkungu.

I-limestone slurry efunxekayo kwi-absorber sump ifafazwa ngokucokisekileyo ngoku kunye nangokuchasene negesi yombane ngokusebenzisa amanqanaba okutshiza. Ukucwangciswa kwemibhobho kwinqaba yokutshiza kubaluleke kakhulu ekususeni ukusebenza kakuhle kwe-absorber. Ukulungiswa kokuhamba kubaluleke kakhulu. Kwi-eliminator yenkungu, amathontsi athathwe kwindawo yokufunxa ngerhasi ye-flue abuyiselwa kwinkqubo. Kwi-outlet ye-absorber, igesi ecocekileyo igcwele kwaye inokususwa ngokuthe ngqo ngenqaba yokupholisa okanye i-stack emanzi. Ngokuzithandela igesi ecocekileyo inokufudunyezwa kwaye ihanjiswe kwindawo eyomileyo.

Udaka olususiweyo kwi-absorber sump lukhutshwa okokuqala ngamanzi ngendlela yee-hydrocyclone. Ngokubanzi olu daka lugxininiswe ngaphambili luphinda lucocwe ngamanzi ngokucoca. Amanzi, afunyenwe kule nkqubo, anokubuyiselwa kakhulu kwi-absorber. Inxalenye encinci isuswe kwinkqubo yokujikeleza ngendlela yokuhamba kwamanzi amdaka.

Ukutshatyalaliswa kwerhasi yomkhuhlane kwimizi-mveliso, amaziko ombane okanye amaziko okutshisa inkunkuma kuxhomekeke kwimilomo eqinisekisa ukusebenza ngokuchanekileyo kwithuba elide kwaye imelane neemeko ezindlongondlongo ngokugqithisileyo zokusingqongileyo. Ngeenkqubo zayo zombhobho, iLechler ibonelela ngezisombululo ezingobuchwephesha nezijolise kwisicelo kwizikhuhla zokutshiza okanye izifunxa zokufunxa kunye nezinye iinkqubo kwi-flue gas desulphurisation (FGD).

I-desulphurization emanzi