Pogwiritsa ntchito makina opangira magetsi opangira malasha a flue gas desulfurization (FGD) monga chitsanzo, kuwunikaku kumayang'ana zovuta zamakina am'madzi onyansa amtundu wa FGD, monga kusapanga bwino komanso kulephera kwa zida zambiri. Kupyolera mu kukhathamiritsa kambirimbiri ndi kusintha kwaukadaulo, zolimba zomwe zili m'madzi otayidwa zidachepetsedwa, kuwonetsetsa kuti kachitidwe kachitidwe kachitidwe moyenera ndikuchepetsa mtengo wogwirira ntchito ndi kukonza. Mayankho othandiza ndi malingaliro adaperekedwa, ndikupereka maziko olimba kuti akwaniritse ziro zotayira madzi otayika mtsogolomo.
1. Dongosolo Mwachidule
Malo opangira magetsi opangira malasha nthawi zambiri amagwiritsa ntchito njira ya limestone-gypsum wet FGD, yomwe imagwiritsa ntchito miyala ya laimu (CaCO₃) ngati yoyamwa. Njirayi imatulutsa madzi oipa a FGD mosalephera. Pankhaniyi, machitidwe awiri onyowa a FGD amagawana gawo limodzi lothandizira madzi oyipa. Gwero lamadzi onyansa ndi kusefukira kwa gypsum cyclone, kukonzedwa pogwiritsa ntchito njira zachikhalidwe (katatu-tank system) yokhala ndi mphamvu yopangidwa ya 22.8 t/h. Madzi otayira oyeretsedwa amapopedwa 6 km kupita kumalo otayapo kuti athetse fumbi.
2. Nkhani Zazikulu mu Dongosolo Loyambirira
The diaphragm wa mapampu dosing nthawi zambiri zinawukhira kapena kulephera, kuteteza mosalekeza mankhwala dosing. Kulephera kwakukulu kwa makina osindikizira a plate-ndi-frame-filters ndi mapampu amatope kumawonjezera kufunika kwa anthu ogwira ntchito komanso kulepheretsa kuchotsa zinyalala, kuchepetsa kusungunuka kwamatope mu zowunikira.
Madzi otayira, ochokera ku kusefukira kwa chimphepo cha gypsum, anali ndi kachulukidwe pafupifupi 1,040 kg/m³ ndi zolimba za 3.7%. Izi zinasokoneza luso la dongosolo lotulutsa madzi oyeretsedwa mosalekeza ndikuwongolera kuchuluka kwa ayoni mu chotengera.
3. Zosintha Zoyambirira
Kupititsa patsogolo Chemical Dosing:
Matanki owonjezera amankhwala adayikidwa pamwamba pa tanki ya katatu kuti awonetsetse kuti dosing mokhazikika kudzera pa mphamvu yokoka, yoyendetsedwa ndimita yofikira pa intaneti.
Zotsatira: Kuwongolera madzi abwino, ngakhale kuti sedimentation inali yofunikabe. Kutulutsa kwatsiku ndi tsiku kunatsitsidwa mpaka 200 m³, komwe sikunali kokwanira kugwira ntchito mokhazikika pamakina awiri a FGD. Mtengo wa dosing unali wokwera, pafupifupi 12 CNY/ton.
Kugwiritsanso Ntchito Madzi Owonongeka Pochepetsa Fumbi:
Mapampu anayikidwa pansi pa chowunikira kuti alowetse mbali ina ya madzi oipa kupita ku masilo a phulusa kuti asakanize ndi kunyowetsa.
Zotsatira: Kuchepetsa kukakamizidwa pamalo otayako koma kudapangitsa kuti pakhale chipwirikiti komanso kusatsata miyezo yotayira.
4. Njira Zowonjezeretsa Panopa
Ndi malamulo okhwima a chilengedwe, kukhathamiritsa kwina kwadongosolo kunali kofunikira.
4.1 Kusintha kwa Chemical ndi Ntchito Yopitilira
Kusungidwa pH pakati pa 9-10 kudzera pakuwonjezeka kwa mankhwala:
Kugwiritsa ntchito tsiku ndi tsiku: laimu (45 kg), coagulants (75 kg), ndi flocculants.
Kuonetsetsa kuti madzi abwino atuluka 240 m³/tsiku pambuyo pogwira ntchito pakanthawi kochepa.
4.2 Kukonzanso Thanki Yadzidzidzi ya Slurry
Kugwiritsa ntchito kawiri kwa tanki yadzidzidzi:
Panthawi yopuma: Kusungirako matope.
Nthawi yogwira ntchito: Kusungunuka kwachilengedwe pochotsa madzi abwino.
Kukhathamiritsa:
Mavavu owonjezera ndi mapaipi pamatanki osiyanasiyana kuti athe kugwira ntchito mosinthika.
Gypsum ya sedimented idabwezeredwa kudongosolo kuti ichotsedwe kapena kugwiritsidwanso ntchito.
4.3 Zosintha Padongosolo
Kuchepetsa kuchulukira kwa zolimba m'madzi onyansa omwe akubwera potumizanso zosefera kuchokera kumakina ochotsera madzi a vacuum lamba kupita ku tanki yamadzi otayira.
Kupititsa patsogolo mphamvu ya sedimentation mwa kufupikitsa nthawi yokhazikika mwachilengedwe kudzera mukumwa mankhwala m'matangi adzidzidzi.
5. Ubwino Wokhathamiritsa
Kutha Kwabwino:
Kugwira ntchito mosalekeza ndikutulutsa tsiku lililonse kwa 400 m³ wamadzi onyansa ovomerezeka.
Kuchita bwino kwa ndende ya ion mu absorber.
Ntchito Zosavuta:
Anathetsa kufunika kosindikizira mbale-ndi-frame.
Kuchepetsa ntchito yogwira matope.
Kudalirika Kwadongosolo Kwambiri:
Kusinthasintha kwakukulu pamadongosolo opangira madzi otayira.
Kudalirika kwapamwamba kwa zida.
Kupulumutsa Mtengo:
Kugwiritsa ntchito mankhwala kuchepetsedwa kukhala laimu (1.4 kg/t), coagulants (0.1 kg/t), ndi flocculants (0.23 kg/t).
Mtengo wamankhwala watsitsidwa mpaka 5.4 CNY/ton.
Kupulumutsa pachaka pafupifupi 948,000 CNY pamitengo yama mankhwala.
Mapeto
Kukhathamiritsa kwa njira yamadzi onyansa a FGD kunapangitsa kuti ntchito zitheke bwino, kuchepetsa ndalama, komanso kutsatira malamulo okhwima a chilengedwe. Njirazi zimagwiranso ntchito ngati njira yofananira yomwe ikufuna kukwaniritsa kutayira kwamadzi opanda ziro komanso kukhazikika kwanthawi yayitali.
Nthawi yotumiza: Jan-21-2025
