Kuhlelo lokususa i-limestone-gypsum wet flue gas desulfurization, ukugcina ikhwalithi ye-slurry kubalulekile ekusebenzeni okuphephile nokuzinzile kohlelo lonke. Kuthinta ngqo isikhathi sokuphila kwemishini, ukusebenza kahle kwe-desulfurization, kanye nekhwalithi yomkhiqizo ophumayo. Izitshalo eziningi zamandla aziwunaki umphumela wama-ion e-chloride ku-slurry ohlelweni lwe-FGD. Ngezansi kunezingozi zama-ion e-chloride amaningi, imithombo yawo, kanye nezinyathelo zokuthuthukisa ezinconywayo.
I. Izingozi Zama-Ion E-Chloride Eningi
1. Ukugqwala Okusheshayo Kwezingxenye Zensimbi Ku-Absorber
- Ama-ion e-chloride agqwala insimbi engagqwali, aphule ungqimba lokudlulisa.
- Ukugxila okuphezulu kwe-Cl⁻ kwehlisa i-pH ye-slurry, okuholela ekugqwaleni kwensimbi okuvamile, ukugqwala kwe-crevice, kanye nokugqwala kokucindezeleka. Lokhu kulimaza imishini efana namaphampu e-slurry kanye nama-agitator, okunciphisa kakhulu isikhathi sazo sokuphila.
- Ngesikhathi sokuklama i-absorber, ukuhlushwa kwe-Cl⁻ okuvunyelwe kuyinto ebalulekile okufanele icatshangelwe. Ukubekezelela okuphezulu kwe-chloride kudinga izinto ezingcono, okwandisa izindleko. Ngokuvamile, izinto ezifana nensimbi engagqwali engu-2205 zingaphatha ukuhlushwa kwe-Cl⁻ kufika ku-20,000 mg/L. Ukuze kube nokuhlushwa okuphezulu, kunconywa izinto eziqinile njenge-Hastelloy noma ama-alloy asekelwe ku-nickel.
2. Ukusetshenziswa Okuncishisiwe Kwe-Slurry kanye Nokusetshenziswa Okukhuphukile Kwe-Reagent/Energy
- Ama-chloride akhona kakhulu njenge-calcium chloride ku-slurry. Ukuhlushwa okuphezulu kwama-ion e-calcium, ngenxa yomphumela ovamile wama-ion, kuvimbela ukuncibilika kwe-limestone, kwehlisa i-alkalinity futhi kuthinte ukusabela kokususwa kwe-SO₂.
- Ama-ion e-chloride nawo ayaphazamisa ukumuncwa kwe-SO₂ ngokomzimba nangamakhemikhali, okunciphisa ukusebenza kahle kwe-desulfurization.
- I-Cl⁻ eningi ingabangela ukwakheka kwama-bubble ku-absorber, okuholela ekuchichimeni, ukufundwa kwezinga loketshezi okungamanga, kanye nokuqhuma kwephampu. Lokhu kungabangela ngisho nokusaphazeka okungene emgudwini wegesi yomoya.
- Ukugxila okuphezulu kwe-chloride nakho kungabangela ukusabela okunamandla kokuhlanganiswa kwezinsimbi ezifana ne-Al, i-Fe, ne-Zn, okunciphisa ukusabela kwe-CaCO₃ futhi ekugcineni kunciphise ukusebenza kahle kokusetshenziswa kwe-slurry.
3. Ukuwohloka Kwekhwalithi Ye-Gypsum
- Ukuhlushwa okuphezulu kwe-Cl⁻ ku-slurry kuvimbela ukuncibilika kwe-SO₂, okuholela ekuqukweni okuphezulu kwe-CaCO₃ ku-gypsum kanye nezakhiwo ezimbi zokukhipha amanzi.
- Ukuze kukhiqizwe i-gypsum esezingeni eliphezulu, kudingeka amanzi okugeza engeziwe, okudala umjikelezo omubi futhi kwandiswe ukugcwala kwe-chloride emanzini angcolile, okwenza kube nzima ukwelashwa kwawo.
II. Imithombo Yama-Ion e-Chloride ku-Absorber Slurry
1. Ama-reagent e-FGD, Amanzi Okuzilungisa, kanye Namalahle
- Ama-chloride angena ohlelweni ngalezi zinto ezifakwayo.
2. Ukusebenzisa i-Cooling Tower Blowdown njengamanzi enqubo
- Amanzi agelezayo ngokuvamile aqukethe cishe ama-550 mg/L we-Cl⁻, okufaka isandla ekuqongeleleni kwe-Cl⁻ e-slurry.
3. Ukusebenza Okubi Kwe-Electrostatic Precipitator
- Izinhlayiya zothuli ezandayo ezingena ku-absorber zithwala ama-chloride, ancibilika ku-slurry bese eqoqana.
4. Ukukhishwa Kwamanzi Angcolile Okwanele
- Ukwehluleka ukukhipha amanzi angcolile asuswa esibabule ngokwedizayini kanye nezidingo zokusebenza kuholela ekuqongeleleni kwe-Cl⁻.
III. Izinyathelo Zokulawula Ama-Ion e-Chloride ku-Absorber Slurry
Indlela ephumelela kakhulu yokulawula i-Cl⁻ eyeqile ukwandisa ukukhishwa kwamanzi angcolile akhishwa yi-desulfurization ngenkathi kuqinisekiswa ukuhambisana nezindinganiso zokukhishwa. Ezinye izinyathelo ezinconywayo zifaka:
1. Lungiselela Ukusetshenziswa Kwamanzi Okucwenga
- Nciphisa isikhathi sokujikeleza kabusha kwe-filtrate bese ulawula ukungena kwamanzi apholile noma amanzi emvula ohlelweni lwe-slurry ukuze ugcine ibhalansi yamanzi.
2. Nciphisa Amanzi Okuwasha e-Gypsum
- Nciphisa okuqukethwe kwe-gypsum Cl⁻ kube yibanga elifanele. Khulisa ukususwa kwe-Cl⁻ ngesikhathi sokususa amanzi ngokufaka i-slurry entsha ye-gypsum lapho amazinga e-Cl⁻ edlula u-10,000 mg/L. Qapha amazinga e-slurry Cl⁻ nge-imitha yobuningi emugqenifuthi ulungise amazinga okukhishwa kwamanzi amdaka ngokufanele.
3. Qinisa Ukuqapha I-Chloride
- Hlola njalo okuqukethwe kwe-slurry chloride bese ulungisa imisebenzi ngokusekelwe emazingeni esibabule samalahle, ukuhambisana kwezinto, kanye nezidingo zesistimu.
4. Lawula Ubuningi be-Slurry kanye ne-pH
- Gcina ubuningi be-slurry buphakathi kuka-1080–1150 kg/m³ kanye ne-pH ephakathi kuka-5.4–5.8. Yehlisa i-pH ngezikhathi ezithile ukuze uthuthukise ukusabela ngaphakathi kwe-absorber.
5. Qinisekisa Ukusebenza Okufanele Kwezivukuzi Ze-Electrostatic
- Vimbela izinhlayiya zothuli eziphethe amazinga aphezulu e-chloride ukuthi zingangeni ku-absorber, ebezizoncibilika futhi ziqongelelane ku-slurry.
Isiphetho
Ama-ion e-chloride amaningi abonisa ukukhishwa kwamanzi angcolile okunganele, okuholela ekunciphiseni ukusebenza kahle kwe-desulfurization kanye nokungalingani kwesistimu. Ukulawulwa kwe-chloride okuphumelelayo kungathuthukisa kakhulu ukuzinza nokusebenza kahle kwesistimu. Ukuze uthole izixazululo ezenzelwe wena noma zamaI-LonnmeterImikhiqizo ka-'s enokusekelwa kobuchwepheshe bokulungisa amaphutha okude, xhumana nathi ukuze uthole ukubonisana kwamahhala ngezixazululo zokulinganisa ubuningi be-slurry.
Isikhathi sokuthunyelwe: Jan-21-2025
