Akwai hanyoyin inji, sinadarai, da lantarki don cire ma'aunin oxide na bututun bakin karfe mai tsafta.

Saboda rikitaccen ma'auni na ma'aunin oxide na bututun bakin karfe mai tsafta, ba abu mai sauƙi ba ne don cire ma'aunin oxide a saman, amma kuma don yin tsayin daka zuwa babban matakin tsabta da santsi.Cire sikelin oxide akan bututun bakin karfe na tsafta yana ɗaukar matakai biyu, ɗaya shine pretreatment, mataki na biyu kuma shine cire toka da slag.

Ma'aunin oxide pretreatment na sanitary bakin karfe bututu sa oxide sikelin rasa, sa'an nan yana da sauki cire ta pickling.Za a iya raba pretreatment zuwa hanyoyi masu zuwa: hanyar maganin narkewar nitrate alkaline.Narke alkaline ya ƙunshi 87% hydroxide da 13% nitrate.Yakamata a sarrafa rabon su biyun a cikin narkakken gishirin a hankali domin narkakkar gishirin ya sami mafi ƙarfin oxidizing, wurin narkewa, da ƙaramin ɗanƙoƙi.A cikin tsarin masana'antu, kawai abun cikin sodium nitrate bai wuce 8% ba (wt).Ana gudanar da magani a cikin tanderun wanka na gishiri, zafin jiki shine 450 ~ 470℃, kuma lokacin shine mintuna 5 don bakin karfe na ferritic da mintuna 30 don bakin karfe austenitic.Hakazalika, baƙin ƙarfe oxides da spinels suma za su iya zama oxidized ta nitrates da kuma zama asara trivalent iron oxides, wanda aka samu sauƙin cire ta pickling.Saboda tasirin zafi mai zafi, oxides da suka bayyana an cire su a wani bangare kuma suna nutsewa cikin wanka a cikin sigar sludge.Kasan tanderun.

Alkaline nitrate narkewa pretreatment tsari: tururi degreasing→preheating (150-250℃, lokaci 20 ~ 30 min)→narkakken gishiri magani→quenching ruwa→wanke ruwan zafi.Maganin gishirin narkakkar bai dace da majalissar da ke da gibin walda ko ƙumburi ba.Lokacin da aka fitar da sassan daga cikin narkakkar tanderun gishiri kuma ruwa ya kashe, za a watsar da alkali mai zafi da hazo mai gishiri, don haka a ɗauki nau'in don mai zurfi don kashe ruwa.Tankin kashe ruwa mai hana fesa ruwa.Lokacin da ruwa ya kashe, da farko sanya kwandon sassa a cikin tanki, tsayawa sama da saman da ke kwance, rufe murfin tankin, sannan ku sauke kwandon sassan cikin ruwa har sai ya nutse.

Alkaline potassium permanganate pretreatment: maganin maganin ya ƙunshi sodium hydroxide 100→125g/L, sodium carbonate 100→125g/L, potassium permanganate 50g/L, bayani zafin jiki 95 ~ 105℃, lokacin jiyya 2 ~ 4 hours.Kodayake maganin alkaline potassium permanganate ba shi da kyau kamar narkakken gishiri magani, fa'idarsa ita ce ta dace da majalisu tare da welded seams ko crimping.

Don sassauta sikelin oxide, ana ɗaukar acid mai ƙarfi mai zuwa kai tsaye don yin magani ta hanyar tsomawa.

Don hana acid ɗin narkar da ƙarfen tushe, dole ne a sarrafa lokacin nutsewa da zafin jiki a hankali.