Kuphatikiza kwa malasha m'magetsi mibadwo imatulutsa, monga pansi ndikuwuluka phulusa, komanso mpweya wowoneka bwino womwe umatulutsidwa mumlengalenga. Zomera zambiri zimafunikira kuti zichotse mpweya wa sox kuchokera pa mpweya wa flue pogwiritsa ntchito stuefurization (FGD) dongosolo. Maukadaulo atatu otsogola ku US amakhala onyowa (85% ya makonzedwe), owuma (12%), komanso jakisoni wa solbent (3%). Kutulutsa konyowa kumachotsa zoposa 90% ya Sox, poyerekeza ndi owuma, omwe amachotsa 80%. Nkhaniyi imafotokoza zaukadaulo wa zojambulajambula za boma pochiza madzi owononga omwe amapangidwa ndi chonyowaMakina a FGD.
Zonyowa za fgd
Ma tekinoloje onyowa a FGD ali ndi gawo la rickry rickking ndi gawo lokhalamo lamadzi. Mitundu yosiyanasiyana ya zotengera zakhala ikugwiritsidwa ntchito, kuphatikizapo nsanja ndi thirakitala, mphamvu zopukutira, ndipo zoponyera utsi mu riyakitala. Mafuta amasinthanitsa acidic magses okhala ndi laimu, sodium hydroxide, kapena mwala. Pazifukwa zingapo zachuma, zotuluka zatsopano zimakonda kugwiritsa ntchito miyala yamiyala.
Pamene mileest amakumana ndi Sox mukamachepetsa zinthu, kotero 2 (gawo lalikulu la sox) limasinthidwa kukhala sulfute, komanso wolemera kwambiri mu calfite sulfite. Makina a FGD a FGD ChatsopanoMakina a FGDGwiritsani ntchito oxidation rimactor pomwe kashiamu sulfite slurry imasinthidwa kukhala calcium sulfate (gypsum); Izi zimatchedwa kuti miyala yamiyala yokakamiza makilogalamu (LSFO) FGD.
Makina amtundu wamakono a LSFO amagwiritsa ntchito nsanja yolumikizira yolumikizira ndi oxidation rimaction rimactoction rimactor munsi (Chithunzi 1) kapena stater badby. Mu mpweya uliwonse umalowetsedwa mu miyala yamiyala yopanda mikhalidwe yodzoza; Kusuta kumadutsa ku Arobicy riacy kapena zone, komwe sulfite imasinthidwa kukhala sulfate, ndi gypsum. Nthawi ya hydraulic nthawi yomwe oxidation riyation ili pafupifupi mphindi 20.
1. Spray Cownnn Sheestone akukakamiza maxidation (LSFO) FGD System. Mu a LSFOBERS SLARRry imadutsa riyakitala, pomwe mpweya umawonjezeredwa kukakamiza makikitala a sulfute kuti asungunuke. Makutidweon awa akuwoneka kuti akusandulika Selenite ku Selenite, zovuta zomwe zimachitika pambuyo pake. Gwero: CH2M Hill
Makina awa amagwira ntchito ndi masitepe okhazikika a 14% mpaka 18%. Imayimitsidwa ndi zingwe zabwino ndi zolimba za gytsuum, phulusa phulusa, komanso zopangidwa ndi mtima womwe umayambitsidwa ndi miyala yamtengo wapatali. Pamene zolimba zimafika pamlingo wapamwamba, kutsuka kumatsukidwa. Makina ambiri a LSFO FGD amagwiritsa ntchito makina okhazikika olekanitsidwa ndi njira zopepuka ku gypsum ndi zinthu zina zochokera ku puree (Chithunzi 2).
2. FGD Purge Gypsum Detutring System. Munthawi zambiri za gypsum deprections tinthu tating'onoting'ono toyera timapangidwa, kapena kupatulidwa, kulowa pazigawo zokhala bwino. Zidutswa zabwino zimalekanitsidwa mu kusefukira kwa hydroclone kuti zipangire mawonekedwe a gypsum gypsum (kuti igulitsidwe) yomwe imatha kutsutsidwa ndi chinyezi chochepa cha lamba wopanda madzi. Gwero: CH2M Hill
Makina ena a FGD amagwiritsa ntchito kukoka kwamitengo yokhazikika kapena mathithi amadzimadzi, ndipo ena amagwiritsa ntchito ma pentrifugrage kapena njira zatsopano zogwiritsira ntchito maphala ndi malamba opumira. Ena amatha kugwiritsa ntchito ma hydroclone awiri mu mndandanda kuti awonjezere kuchotsedwa kwa mathipumu. Gawo la hydraclone kusefukira likhoza kubwezeretsedwanso ku FGD kachitidwe kanu kuti muchepetse kutuluka kwa madzi.
Kuyeretsa kumayambitsa pomwe pali zomanga za chlorides mu FGD slurry, zomwe zimafunikira ndi malire omwe amakakamizidwa ndi zida zomanga za FGD dongosolo la zomangamanga za FGD.
Makhalidwe a FGD
Mitundu yambiri imakhudza kuphatikizidwa kwa FGD kutaya, monga malasha ndi miyala yam'manja, mtundu wa scrubber, ndi kachitidwe ka Gypsum-dething. Malasha imathandizira mipweya yacidi ya acidic - monga chlorides, fluorides, ndi sulfate - komanso arsuon, a Selenium, ndi zincmium, ndi zincmium, ndi zincmium, ndi zincmium, ndi zincmium, ndi zincmium, ndi zincmium, ndi zincmium, ndi zincmium, ndi zincmium, ndi zincmium, ndi zincmium, ndi zincmium, ndi zincmium, ndi zincmium, ndi zincmium, ndi zincmium, ndi zincmium, ndi zincmium, ndi zincmium. Milandu imathandizira chitsulo ndi aluminiyamu (kuchokera ku mineralzals) ku madzi onyowa a FGD. Mwala umakhala wokhazikika mu mphero yonyowa, ndipo kukokoloka ndi kutukuka kwa mipira kumapereka chitsulo chopanda miyala. Curys amakonda kupereka chindapusa, chomwe ndi chimodzi mwazifukwa zomwe zimatsuka madzi zimatsukidwa ndi scrubber.
Kuchokera: Thomas E. Higgins, Phd, Per; A. Thomas Sandy, Pe; Ndipo Silas W. Perekani, pe.
Email: caroline@rbsic-sisic.com
Post Nthawi: Aug-04-2018