A cikin tsarin rage yawan iskar gas mai laushi da aka yi da dutse mai laushi da gypsum, kiyaye ingancin slurry yana da mahimmanci don aminci da kwanciyar hankali na aikin dukkan tsarin. Yana shafar tsawon rayuwar kayan aiki, ingancin cire sulfur, da ingancin samfuran da aka samar. Yawancin masana'antun wutar lantarki suna raina tasirin ions na chloride a cikin slurry akan tsarin FGD. Ga haɗarin ions na chloride da suka wuce kima, tushen su, da kuma matakan ingantawa da aka ba da shawarar.
I. Hatsarin Ion Chloride Mai Wuya
1. Tsatsa Mai Sauri a Cikin Kayan Karfe a Cikin Mai Shafawa
- Ion chloride suna lalata bakin karfe, suna lalata layin passivation.
- Yawan sinadarin Cl⁻ yana rage pH na slurry, wanda ke haifar da tsatsa ta ƙarfe gabaɗaya, tsatsa mai kauri, da tsatsa mai damuwa. Wannan yana lalata kayan aiki kamar famfunan slurry da masu tayar da hankali, yana rage tsawon rayuwarsu sosai.
- A lokacin ƙirar mai sha, yawan Cl⁻ da aka yarda da shi muhimmin abu ne. Haƙuri mai yawa na chloride yana buƙatar kayan aiki mafi kyau, wanda ke ƙara farashi. Yawanci, kayan kamar bakin ƙarfe 2205 na iya jure yawan Cl⁻ har zuwa 20,000 mg/L. Don yawan taro, ana ba da shawarar kayan aiki masu ƙarfi kamar Hastelloy ko ƙarfe masu tushen nickel.
2. Rage Amfani da Slurry da Ƙara Amfani da Reagent/Makamashi
- Chloride galibi yana wanzuwa a matsayin calcium chloride a cikin slurry. Babban yawan sinadarin calcium ion, saboda tasirin ion na gama gari, yana hana narkewar dutse mai laushi, yana rage alkalinity kuma yana shafar amsawar cire SO₂.
- Ion ɗin Chloride kuma suna hana shan SO₂ ta zahiri da kuma sinadarai, wanda hakan ke rage ingancin desulfurization.
- Yawan Cl⁻ na iya haifar da samuwar kumfa a cikin abin sha, wanda ke haifar da cikar ruwa, karanta matakin ruwa na ƙarya, da kuma cavitation na famfo. Wannan ma na iya haifar da slurry shiga bututun iskar gas.
- Yawan sinadarin chloride na iya haifar da mummunan tasirin sinadarai masu guba ga karafa kamar Al, Fe, da Zn, wanda hakan ke rage tasirin CaCO₃ da kuma rage yadda ake amfani da sinadarin slurry.
3. Lalacewar Ingancin Gypsum
- Yawan sinadarin Cl⁻ a cikin slurry yana hana narkewar SO₂, wanda ke haifar da yawan sinadarin CaCO₃ a cikin gypsum da kuma rashin kyawun sinadarin dehydration.
- Domin samar da gypsum mai inganci, ana buƙatar ƙarin ruwan wanke-wanke, wanda ke haifar da mummunan zagaye da kuma ƙara yawan sinadarin chloride a cikin ruwan sharar gida, wanda ke rikitar da maganinsa.
II. Tushen Ion Chloride a cikin Slurry Mai Shafawa
1. Abubuwan da ke haifar da FGD, Ruwan Kayan Shafawa, da Kwal
- Chlorides suna shiga tsarin ta hanyar waɗannan abubuwan da aka shigar.
2. Amfani da Fashewar Hasumiyar Sanyaya a Matsayin Ruwan Tsari
- Ruwan da ke busarwa yawanci yana ɗauke da kusan 550 mg/L na Cl⁻, wanda ke taimakawa wajen tara sinadarin Cl⁻.
3. Rashin Aikin Mai Rage Hasken Lantarki Mai Kyau
- Ƙara yawan ƙurar da ke shiga cikin na'urar ɗaukar sinadarin chloride, wanda ke narkewa a cikin slurry ɗin kuma ya taru.
4. Rashin Isasshen Ruwan Shara
- Rashin fitar da ruwan sharar da aka lalata ta hanyar cire sulfur bisa ga tsari da buƙatun aiki yana haifar da tarin Cl⁻.
III. Matakan Kula da Ion Chloride a cikin Ruwan Sha
Hanya mafi inganci don sarrafa Cl⁻ mai yawa ita ce ƙara fitar da ruwan sharar da ke lalata sulfurization yayin da ake tabbatar da bin ƙa'idodin fitarwa. Sauran matakan da aka ba da shawarar sun haɗa da:
1. Inganta Amfani da Ruwa Mai Tacewa
- Rage lokacin sake zagayowar tacewa da kuma sarrafa kwararar ruwan sanyi ko ruwan sama zuwa tsarin slurry don kiyaye daidaiton ruwa.
2. Rage Ruwan Wanka na Gypsum
- A iyakance yawan sinadarin gypsum Cl⁻ zuwa iyaka mai dacewa. A ƙara cire Cl⁻ yayin cire ruwa ta hanyar maye gurbin slurry da sabon gypsum slurry lokacin da matakan Cl⁻ suka wuce 10,000 mg/L. A kula da matakan slurry Cl⁻ daMita yawan layi a cikikuma a daidaita yawan fitar da ruwan shara daidai da haka.
3. Ƙarfafa Kulawa da Chloride
- A kullum a gwada sinadarin slurry chloride a jiki sannan a daidaita ayyukansa bisa ga matakan sulfur na kwal, dacewar kayan aiki, da kuma buƙatun tsarin.
4. Kula da Yawan slurry da pH
- A kiyaye yawan sinadarin slurry tsakanin 1080–1150 kg/m³ da pH tsakanin 5.4–5.8. A rage pH lokaci-lokaci domin inganta amsawar da ke cikin abin da ke sha.
5. Tabbatar da Ingantaccen Aikin Masu Hana Fitar da Wutar Lantarki
- Hana ƙurar da ke ɗauke da yawan sinadarin chloride shiga cikin abin sha, wanda in ba haka ba zai narke ya taruwa a cikin ruwan.
Kammalawa
Yawan sinadarin chloride yana nuna rashin isasshen fitar da ruwan shara, wanda ke haifar da raguwar ingancin desulfurization da rashin daidaiton tsarin. Ingantaccen sarrafa chloride na iya inganta daidaiton tsarin da inganci sosai. Don mafita da aka keɓance ko don gwadawaNa'urar auna tsayiSamfuran 's tare da tallafin gyaran kurakurai na ƙwararru, tuntuɓe mu don samun shawarwari kyauta kan hanyoyin auna yawan slurry.
Lokacin Saƙo: Janairu-21-2025
