Ukungcola komoya okuvela ekukhiqizeni usimende kanye nezixazululo ezifanele.
Izinto ezingcolisa umoya eziphuma ekukhiqizweni kukasimende ikakhulukazi uthuli negesi ewuketshezi.
Uthuli luvela ikakhulukazi kulezi zinqubo ezilandelayo:
1.ukulungiswa kwezinto zokusetshenziswa
I-A.CaCO3 crush.
B.Ukomisa ubumba
C.Ukugaya namalahle.
D.Ukudla okuluhlaza ukugaya.
2.Isistimu yokushiswa kwe-Clinker izoqeda umoya wothuli omningi.
3. Ukucutshungulwa kokukhiqiza kokugcina:
A. Izigayo zikasimende
B. Ukupakisha usimende
C.Inqwaba yokuthutha usimende.
Ukuze kulungiswe izinto ezingavuthiwe A, C, D kanye nenqubo yokukhiqiza yokuqeda umoya wothuli uza nezinga lokushisa eliphansi, kodwa ukulungiswa kwempahla eluhlaza B, umoya wothuli ophuma ekhanda nomsila weziko uhlale unokushisa okuphezulu.
Izinhlayiya eziqukethwe emoyeni othulini ikakhulukazi i-CaCO3,CaO,SiO2,Fe2O3,Al2O3,MgO,Na2O,K2O, njll.
Ukuze igesi flue kusukela ekukhiqizeni usimende ikakhulukazi SO2, NOx, CO2, HF, nokunye okuvela ukubola CaCO3 kanye nokushiswa kukaphethiloli.
I-SO2 iphuma ekudleni okungaphekiwe (impushana eluhlaza emnyama noma uhhafu kuhhani omile), ukushiswa kukaphethiloli;
I-NOx evela ekuphenduleni phakathi kwe-N2 ne-Oxygen ekushiseni okuphezulu;
I-HF ivela ekwakhekeni kwe-fluorine ukubola kusuka ekudleni okungaphekiwe lapho inqubo yokushiswa, njengokuxuba ne-fluorite njenge-mineralizer kuhhavini olume mpo.
I-CO2 iphuma ikakhulukazi ekuboleni kwe-CaCO3, ukushiswa kukaphethiloli, njll.
Izixazululo:
1.Ngokulawula umoya wothuli
I-Zonel filtech inganikeza umqoqi wothuli wesikhwama sokuhlunga ukuze uhlanze umoya, futhi inganikeza izesekeli ezifanele ngokuya ngezidingo zamakhasimende.
Izihlungi zesikhwama ezivela ku-Zonel filtech ezinobuchwephesha obuphezulu, ngisho nezinhlayiya ezingu-0.5 micron, ukusebenza kahle kwesihlungi kungafika ku-99.99%, futhi izihlungi zihlala zisebenza ngokuzinzile, kulula kakhulu ukuzinakekela.
Indlu yokuhlunga isikhwama somkhiqizo we-Zonel ingaqoqa uthuli olungenakubanjwa yi-cottrell, njengothuli olunoketshezi oluhle kakhulu noma olubi kakhulu.
2.Ngokulawula igesi lomkhuhlane
CO2: thuthukisa ikhwalithi ye-clinker; ukunciphisa ukusetshenziswa kwe-clinker, njengokuthuthukisa ezinye izinto zokuxuba ngesisekelo sezakhiwo ezifanayo zikasimende, sebenzisa okunye ukufaka esikhundleni sikasimende oluhlaza ukunciphisa ukusetshenziswa kukasimende; ukuthuthukisa amasistimu angcono okusebenzisa ukushisa okulahlwayo, njengokusebenzisa ukushisa kwemfucuza ukomisa izinto ezingavuthiwe, ukusebenzisa ukushisa okuyimfucuza ukukhiqiza ugesi, njll.
I-SO2:
Shintsha okuluhlaza okungcono, unciphise okuqukethwe kwesibabule;
Kufakwe ezigayweni eziluhlaza: hola umoya wothuli usuka emsileni wehhoko uye kumagayo aluhlaza, ukusabela ngale ndlela elandelayo:
CaCO3 + SO2 = CaSO3 + CO2
2 CaCO3 + 2 SO2 + O2 = 2 CaSo4 + 2 CO2
Hlanganisa i-Ca(OH)2;
Hlomisa umbhoshongo weshawa;
Futhi isixazululo esiphumelela kakhulu ukukhetha isilinganiso esifanele seSulfur ne-alkali;
Ngasikhathi sinye, emsileni weziko, hlomisa umqoqi wothuli wezikhwama zokuhlunga, i-Na2O, K2O ebusweni bezikhwama zokuhlunga uthuli izosabela nge-SO2 ne-NO2, okuqukethwe komoya we-asidi kunganciphisa 30 ~ 60 %.
NOx:
Gcina izinga lokushisa elifanele, lawula umthamo womoya;
Sebenzisa igesi yokunciphisa, njenge-CO, H2, njll, hlanganisa i-Fe2O3, i-Al2O3 ekudleni okuluhlaza, okunganciphisa i-NOx ku-N2.
2NO + 2CO = N2 + CO2;
2NO + 2H2 = N2 + 2H2O
2NO2 + 4CO = N2 + 4 CO2
2NO2 + 4H2 = N2 + 4H2O
Ngokusho kwesenzo, ngakho-ke kuhhashi kufanele ulawule okuqukethwe kwe-O2 ngokucophelela.
Ukwehliswa kwe-catalytic okukhethiwe nakho kungasiza ekunciphiseni ukukhathala kwe-NOx, lesi sixazululo sifaka isinciphisi esikhethekile, njenge-hydrogen nitride noma i-Urea:
8NH3 + 6NO2 -> 7N2 + 12H2O
6NO + 4NH3 -> 5N2 + 6H2O
4NH3 + 3O2 -> 2N2 + 6H2O
Ihlelwe ngu-ZONEL FILTECH
Isikhathi sokuthumela: Jan-27-2022