Muri sisitemu ya hekeste-gypsum itose ya flue gaz desulfurizasi, gukomeza ubwiza bwa slurry ningirakamaro kumikorere myiza kandi ihamye ya sisitemu yose. Ihindura mu buryo butaziguye ibikoresho igihe cyo kubaho, gukora neza, hamwe nubwiza bwibicuruzwa. Amashanyarazi menshi asuzugura ingaruka za ionide ya chloride muri slurry kuri sisitemu ya FGD. Hasi ni ingaruka ziterwa na ioni ya chloride ikabije, inkomoko yabyo, hamwe ningamba zogutezimbere.
I. Ibyago bya Chloride Ions ikabije
1. Kwihuta kwangirika kwibyuma muri Absorber
- Iyoni ya Chloride yangiza ibyuma bitagira umwanda, isenya passivation.
- Ubushuhe bwinshi bwa Cl⁻ bugabanya pH ya slurry, biganisha ku kwangirika kwicyuma rusange, kwangirika kwimitsi, no guhangayika. Ibi byangiza ibikoresho nka pompe zidahwitse hamwe nabashinzwe ubukangurambaga, bigabanya cyane ubuzima bwabo.
- Mugihe cyo gushushanya, kwemerera Cl⁻ kwibanda ni ikintu cyingenzi. Kwihanganira chloride nyinshi bisaba ibikoresho byiza, kongera ibiciro. Mubisanzwe, ibikoresho nka 2205 ibyuma bitagira umuyonga birashobora gukemura Cl⁻ kwibanda kuri 20.000 mg / L. Kubireba cyane, ibikoresho byinshi nka Hastelloy cyangwa nikel ishingiye kuri nikel birasabwa.
2. Kugabanya Gukoresha Byoroheje no Kongera Reagent / Gukoresha Ingufu
- Chloride ibaho cyane nka calcium chloride ya calcium. Ubwinshi bwa calcium ion ion, bitewe ningaruka zisanzwe za ion, irwanya isesemi ya hekeste, igabanya alkaline kandi ikagira ingaruka kuri SO₂ yo gukuraho.
- Ion ya Chloride nayo ibuza kwinjiza umubiri na chimique ya SO₂, bikagabanya imikorere ya desulfurizasi.
- Kurenza Cl⁻ birashobora gutera ibibyimba mumashanyarazi, biganisha kumazi menshi, gusoma ibinyoma bisomeka, hamwe na pompe cavitation. Ibi birashobora no kuvamo guhubuka byinjira mumiyoboro ya gaz.
- Ubwinshi bwa chloride burashobora kandi gutera imbaraga zikomeye hamwe nibyuma nka Al, Fe, na Zn, bikagabanya reaction ya CaCO₃ hanyuma bikagabanya gukoresha neza ibicuruzwa.
3. Kwangirika kwa Gypsum
- Kwiyongera kwa Cl⁻ kwibanda kumurongo bibuza SO₂ gusenyuka, biganisha kuri CaCO₃ nyinshi muri gypsumu hamwe nubutaka bubi bwamazi.
- Kugira ngo habeho gypsumu yo mu rwego rwo hejuru, hasabwa andi mazi yo gukaraba, bigatera uruziga rukabije kandi byongera chloride mu mazi y’amazi, bikagorana kuyivura.
II. Inkomoko ya Chloride Ions muri Absorber Slurry
1. FGD Reagents, Amazi yo kwisiga, hamwe namakara
- Chloride yinjira muri sisitemu binyuze muri ibyo byinjira.
2. Gukoresha Cooling Tower Blowdown nkamazi yatunganijwe
- Amazi ya Blowdown mubisanzwe arimo 550 mg / L ya Cl⁻, bigira uruhare mukwirundanya kwa Cl⁻.
3. Imikorere mibi ya Electrostatic Precipitator Imikorere
- Kwiyongera kwinshi kwumukungugu winjira mumashanyarazi bitwara chloride, ishonga mumashanyarazi ikarundanya.
4. Gusohora amazi adahagije
- Kunanirwa gusohora amazi mabi ya desulfurizasi kubishushanyo mbonera nibisabwa bikora biganisha kuri Cl⁻.
III. Ingamba zo kugenzura Chloride Ions muri Absorber Slurry
Uburyo bwiza cyane bwo kugenzura Cl excessive ikabije ni ukongera imyanda y’amazi y’amazi mu gihe hubahirizwa ibipimo by’isohoka. Izindi ngamba zisabwa zirimo:
1. Hindura uburyo bwo gukoresha amazi ya Filtrate
- Gabanya igihe cyo kuyungurura kandi ugenzure iyinjira ryamazi akonje cyangwa amazi yimvura muri sisitemu yo gutembera kugirango uburinganire bwamazi.
2. Kugabanya amazi yo gukaraba
- Gabanya gypsum Cl⁻ ibirimo kurwego rwumvikana. Ongera ikurwaho rya Cl⁻ mugihe cyo kuvoma usimbuza ibishishwa hamwe na gypsumu nshya iyo urwego rwa Cl⁻ rurenze 10,000 mg / L. Gukurikirana slurry Cl⁻ urwego hamwe nauburebure bwa meterono guhindura igipimo cyo gusohora amazi.
3. Shimangira gukurikirana Chloride
- Gerageza buri gihe ibirimo chloride ya chloride hanyuma uhindure ibikorwa ukurikije urwego rwamakara ya sulferi, guhuza ibikoresho, nibisabwa na sisitemu.
4. Kugenzura Ubucucike bwa Slurry na pH
- Komeza ubucucike buri hagati ya 1080–1150 kg / m³ na pH hagati ya 5.4-5.8. Rimwe na rimwe manura pH kugirango utezimbere reaction.
5. Menya neza imikorere yimvura ya Electrostatike
- Irinde ibice byumukungugu bitwara chloride nyinshi kugirango byinjire mumashanyarazi, bitabaye ibyo gushonga no kwirundanyiriza mumashanyarazi.
Umwanzuro
Iion ya chloride irenze urugero yerekana ko amazi y’amazi adahagije, bigatuma kugabanuka kwa desulfurizasi no kutaringaniza sisitemu. Kugenzura neza chloride irashobora kuzamura cyane sisitemu ihamye kandi ikora neza. Kubisubizo byihariye cyangwa kugeragezaLonnmeter'Ibicuruzwa hamwe nu mwuga wa kure wo gukemura ibibazo, twandikire kugirango tujye inama kubuntu kubisubizo byimbitse.
Igihe cyo kohereza: Mutarama-21-2025
