Lenaneong la limestone-gypsum wet flue gas desulfurization, ho boloka boleng ba slurry ke habohlokoa bakeng sa ts'ebetso e sireletsehileng le e tsitsitseng ea tsamaiso eohle. E ama ka kotloloho bophelo ba lisebelisoa, katleho ea desulfurization, le boleng ba sehlahisoa. Litsi tse ngata tsa motlakase li nyenyefatsa phello ea li-ion tsa chloride ho slurry ho sistimi ea FGD. Ka tlase ke likotsi tsa li-ion tse feteletseng tsa chloride, mehloli ea tsona, le mehato e khothaletsoang ea ntlafatso.
I. Likotsi tsa Li-ion tsa Chloride tse Feteletseng
1. Ho Potlaka ha Corrosion ea Metal Components ho Absorber
- Li-ion tsa chloride li senya tšepe e sa hloekang, li pshatla lera la passivation.
- Metsoako e phahameng ea Cl⁻ e theola pH ea slurry, e lebisang ho holeng ha tšepe ka kakaretso, ho bola ha maphao le khatello ea maikutlo. Sena se senya lisebelisoa tse kang lipompo tsa slurry le li-agitator, e khutsufatsang bophelo ba tsona haholo.
- Nakong ea moralo oa ho noa, mohopolo o lumelletsoeng oa Cl⁻ ke oa bohlokoa ho nahanoa. Mamello e phahameng ea chloride e hloka lisebelisoa tse betere, ho eketsa litšenyehelo. Ka tloaelo, lisebelisoa tse kang 2205 tšepe e sa jeleng li ka sebetsana le Cl⁻ concentrations ho fihla ho 20,000 mg/L. Bakeng sa likhakanyo tse phahameng, lisebelisoa tse matla joalo ka Hastelloy kapa li-alloys tse thehiloeng ho nickel lia khothaletsoa.
2. Ho Fokotsa Tšebeliso ea Slurry le Keketseho ea Reagent / Tšebeliso ea Matla
- Li-chloride hangata li teng joalo ka calcium chloride ka har'a slurry. Khalsiamo e phahameng ea ion, ka lebaka la phello e tloaelehileng ea ion, e hatella ho qhibiliha ha lejoe la mokoetla, ho theola alkalinity le ho ama karabelo ea ho tlosoa ha SO₂.
- Li-ion tsa chloride li boetse li sitisa ho monya ha 'mele le lik'hemik'hale tsa SO₂, ho fokotsa katleho ea desulfurization.
- Cl⁻ e feteletseng e ka baka sebopeho sa bubble ka har'a mokelikeli, e lebisang ho khaphatseha, lipalo tsa boemo ba mokelikeli oa bohata, le cavitation ea pompo. Sena se ka ba sa fella ka hore seretse se kene ka tselaneng ea khase ea flue.
- Metsoako e phahameng ea chloride le eona e ka baka ts'ebetso e matla ea ho rarahana ka litšepe tse joalo ka Al, Fe, le Zn, ea fokotsa ts'ebetso ea CaCO₃ mme qetellong ea fokotsa ts'ebetso ea ts'ebeliso ea slurry.
3. Ho senyeha ha boleng ba Gypsum
- Maemo a phahameng a Cl⁻ ka har'a slurry a thibela ho qhibiliha ha SO₂, ho lebisang ho CaCO₃ e phahameng ka har'a gypsum le thepa e mpe ea ho ntša metsi.
- Ho hlahisa gypsum ea boleng bo holimo, ho hlokahala metsi a eketsehileng a ho hlatsoa, ho theha potoloho e mpe le ho eketsa khatello ea chloride metsing a litšila, ho thatafatsa phekolo ea eona.
II. Mehloli ea li-ion tsa Chloride ho Absorber Slurry
1. Li-reagents tsa FGD, Metsi a Makeup, le Mashala
- Li-chloride li kena tsamaisong ka lisebelisoa tsena.
2. Ho Sebelisa Cooling Tower Blowdown joalo ka Metsi a Ts'ebetso
- Metsi a phoroselang hangata a na le hoo e ka bang 550 mg/L ea Cl⁻, e leng se tlatsetsang ho bokelleng ho hotle ha Cl⁻.
3. Ts'ebetso e mpe ea Electrostatic Precipitator Performance
- Keketseho ea likaroloana tsa lerōle tse kenang ka mokelikeli li jara li-chloride, tse qhibilihang ka har'a slurry le ho bokella.
4. Phallo ea metsi a litšila e sa lekaneng
- Ho hloleha ho ntša metsi a litšila a desulfurization ka moralo le litlhoko tsa ts'ebetso ho lebisa ho bokellaneng ha Cl⁻.
III. Mehato ea ho Laola Chloride Ions ho Absorber Slurry
Mokhoa o atlehang ka ho fetisisa oa ho laola Cl⁻ e feteletseng ke ho eketsa ho ntšoa ha metsi a litšila a desulfurization ha u ntse u netefatsa hore ho latela litekanyetso tsa ho ntša metsi. Mehato e meng e khothalelitsoeng e kenyelletsa:
1. Ntlafatsa Tšebeliso ea Metsi a Filtrate
- Fokotsa nako ea ho potoloha ha filtrate 'me u laole ho kena ha metsi a pholileng kapa metsi a pula ka har'a sistimi ea seretse ho boloka botsitso ba metsi.
2. Fokotsa Metsi a ho Hlatsoa a Gypsum
- Fokotsa litaba tsa gypsum Cl⁻ hore li be boemong bo loketseng. Eketsa ho tlosoa ha Cl⁻ nakong ea ho ntša metsi ka ho tlosa slurry ka gypsum slurry e ncha ha maemo a Cl⁻ a feta 10,000 mg/L. Lekola maemo a Cl⁻ a slurry kameter density meterle ho fetola litekanyetso tsa ho qhala metsi a litšila ka nepo.
3. Matlafatsa Tlhokomelo ea Chloride
- Lekola litaba tsa slurry chloride khafetsa 'me u lokise ts'ebetso ho ipapisitse le maemo a sebabole sa mashala, ho lumellana ha thepa le litlhoko tsa sistimi.
4. Laola Slurry Density le pH
- Boloka sekhahla sa seretse se pakeng tsa 1080–1150 kg/m³ le pH pakeng tsa 5.4–5.8. Nako le nako theola pH ho ntlafatsa karabelo ka har'a monyi.
5. Etsa bonnete ba Ts'ebetso e Nepahetseng ea Electrostatic Precipitators
- Thibela likaroloana tsa lerōle tse nang le metsoako e phahameng ea chloride hore li se ke tsa kena ka har'a mohatla, tse neng li ka qhibiliha le ho bokellana ka har'a slurry.
Qetello
Li-ion tsa chloride tse feteletseng li bonts'a phallo e sa lekaneng ea metsi a litšila, e lebisang ho fokotseng ts'ebetso ea desulfurization le ho se leka-lekane ha sistimi. Taolo e sebetsang ea chloride e ka ntlafatsa haholo botsitso le ts'ebetso ea sistimi. Bakeng sa tharollo e lokiselitsoeng kapa ho lekaLonnmeterLihlahisoa tse nang le ts'ehetso ea profeshenale ea ho lokisa liphoso, ikopanye le rona bakeng sa therisano ea mahala mabapi le litharollo tsa methatso ea slurry density.
Nako ea poso: Jan-21-2025
