Kusetshenziswa uhlelo lokususa igesi ephumayo (i-FGD) lwesitshalo samandla kagesi esisebenza ngamalahle njengesibonelo, lokhu kuhlaziywa kuhlola izinkinga ezinhlelweni zamanzi amdaka zendabuko ze-FGD, njengokuklama okubi kanye namazinga aphezulu okwehluleka kwemishini. Ngokusebenzisa ukulungiswa okuningi kanye nokuguqulwa kobuchwepheshe, okuqukethwe okuqinile emanzini amdaka kwancishiswa, okuqinisekisa ukusebenza okuvamile kwesistimu kanye nokunciphisa izindleko zokusebenza nokulungisa. Kwaphakanyiswa izixazululo nezincomo ezisebenzayo, okunikeza isisekelo esiqinile sokufeza ukukhishwa kwamanzi amdaka okungenalutho esikhathini esizayo.
1. Ukubuka Konke Kwesistimu
Izitshalo zamandla ezisebenzisa amalahle zivame ukusebenzisa inqubo ye-limestone-gypsum wet FGD, esebenzisa i-limestone (CaCO₃) njengento emunca amanzi. Le nqubo ikhiqiza amanzi angcolile e-FGD ngokungenakugwenywa. Kulesi simo, izinhlelo ezimbili ze-FGD ezimanzi zabelana ngeyunithi eyodwa yokwelapha amanzi angcolile. Umthombo wamanzi angcolile yi-gypsum cyclone overflow, ecutshungulwa kusetshenziswa izindlela zendabuko (uhlelo lwethangi elithathu) olunamandla aklanyelwe angu-22.8 t/h. Amanzi angcolile ahlanziwe ampontshwa amakhilomitha ayi-6 aye endaweni yokulahla ukuze kuncishiswe uthuli.
2. Izinkinga Ezinkulu Ohlelweni Lokuqala
I-diaphragm yamaphampu okulinganisa yayivame ukuvuza noma ukwehluleka, okuvimbela ukulinganisa okuqhubekayo kwamakhemikhali. Amazinga aphezulu okwehluleka emishinini yokuhlunga yepuleti nohlaka kanye namaphampu odaka andise izidingo zabasebenzi futhi aphazamisa ukususwa kodaka, okunciphisa ukuthungwa kwenhlabathi kuma-clarifier.
Amanzi angcolile, avela ekuchichimeni kwe-gypsum cyclone, ayenobuningi obungaba ngu-1,040 kg/m³ nokuqukethwe okuqinile okungu-3.7%. Lokhu kwaphazamisa ikhono lesistimu lokukhipha amanzi aphathwe njalo nokulawula ukugcwala kwama-ion ayingozi ku-absorber.
3. Ukuguqulwa Kwangaphambi Kokuqala
Ukuthuthukisa Ukulinganisa Kwamakhemikhali:
Kwafakwa amathangi amakhemikhali engeziwe phezu kohlelo lwamathangi amathathu ukuqinisekisa ukuthi umthamo uqhutshwa njalo ngamandla adonsela phansi, alawulwa yi-imitha yokuhlushwa eku-inthanethi.
Umphumela: Ikhwalithi yamanzi ethuthukisiwe, yize ukuthungwa kwamanzi kwakudingeka. Ukukhishwa kwamanzi nsuku zonke kwehle kwafika ku-200 m³, okwakunganele ukusebenza okuzinzile kwezinhlelo ezimbili ze-FGD. Izindleko zokulinganisa zaziphezulu, zilinganiselwa ku-12 CNY/ton.
Ukusebenzisa Amanzi Angcolile Kabusha Ukuze Kuncishiswe Uthuli:
Kwafakwa amaphampu phansi kwe-clarifier ukuze kuqondiswe ingxenye yamanzi angcolile ezindaweni zokugcina umlotha ukuze kuhlanganiswe futhi kufakwe umswakama.
Umphumela: Ukunciphisa ingcindezi endaweni yokulahla kodwa kusalokhu kuholele ekungcoleni okuphezulu kanye nokungalandeli izindinganiso zokukhipha.
4. Izindlela Zokwenza Kusebenze Kabusha Kwamanje
Njengoba kunemithetho eqinile yezemvelo, kwakudingeka ukwenziwa ngcono okwengeziwe kwesistimu.
4.1 Ukulungiswa Kwamakhemikhali Nokusebenza Okuqhubekayo
Ukugcina i-pH phakathi kuka-9-10 ngokwandisa umthamo wamakhemikhali:
Ukusetshenziswa kwansuku zonke: i-lime (45 kg), ama-coagulant (75 kg), kanye nama-flocculant.
Kuqinisekiswe ukuthi kuphuma amanzi ahlanzekile angama-240 m³/ngosuku ngemva kokusebenza kwesistimu ngezikhathi ezithile.
4.2 Ukushintsha Ithangi Le-Slurry Eliphuthumayo
Ukusetshenziswa kabili kwethangi eliphuthumayo:
Ngesikhathi sokuphumula: Indawo yokugcina udaka.
Ngesikhathi sokusebenza: Ukuthuthwa kwemvelo kokukhipha amanzi acwebile.
Ukuthuthukisa:
Kungezwe ama-valve namapayipi emazingeni ahlukahlukene ethangi ukuze kusebenze ukusebenza okuguquguqukayo.
I-gypsum efakwe i-sedimented yabuyiselwa ohlelweni ukuze ikhishwe amanzi noma isetshenziswe kabusha.
4.3 Ukuguqulwa Kohlelo Lonke
Ukwehlisa ukugcwala kwezinto eziqinile emanzini angcolile angenayo ngokuqondisa kabusha i-filtrate kusuka ezinhlelweni zokukhipha amanzi ngebhande le-vacuum kuya ethangini lokuvimba amanzi angcolile.
Kuthuthukiswe ukusebenza kahle kokuthuthwa kwenhlabathi ngokufinyeza izikhathi zokuzinza zemvelo ngokulinganisa amakhemikhali emathangini aphuthumayo.
5. Izinzuzo Zokwenza Kusebenze Kahle
Amandla Athuthukisiwe:
Ukusebenza okuqhubekayo ngokukhishwa kwamanzi amdaka angaphezu kuka-400 m³ nsuku zonke.
Ukulawula okusebenzayo kokuhlushwa kwama-ion ku-absorber.
Imisebenzi Elula:
Kwasusa isidingo somshini wokuhlunga wepuleti nohlaka.
Umsebenzi oncishisiwe wokuphatha udaka.
Ukuthembeka Kwesistimu Okuthuthukisiwe:
Ukuguquguquka okukhulu kwezinhlelo zokucubungula amanzi angcolile.
Ukuthembeka okuphezulu kwemishini.
Ukonga Izindleko:
Ukusetshenziswa kwamakhemikhali kwehliswe kwaba yi-lime (1.4 kg/t), ama-coagulant (0.1 kg/t), kanye nama-flocculant (0.23 kg/t).
Izindleko zokwelashwa zehliswe zaba yi-5.4 CNY/ton.
Ukonga kwaminyaka yonke okungaba ngu-948,000 CNY ezindlekweni zamakhemikhali.
Isiphetho
Ukwenziwa ngcono kohlelo lwamanzi amdaka lwe-FGD kuholele ekusebenzeni kahle okuthuthukisiwe kakhulu, ezindleleni ezincishisiwe, kanye nokuhambisana nezindinganiso zemvelo eziqinile. Lezi zinyathelo zisebenza njengereferensi yezinhlelo ezifanayo ezifuna ukufeza ukukhishwa kwamanzi amdaka ngokuphelele kanye nokusimama kwesikhathi eside.
Isikhathi sokuthunyelwe: Jan-21-2025
