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Yadda Kumfa ke Aiki

Tsarin zubar da kumfa gabaɗaya ana bayyana shi a matsayin aikin zahiri da sinadarai, inda ake jawo ƙwayar ma'adinai zuwa gare ta, kuma tana manne kanta a saman kumfa, kuma ana jigilar ta zuwa saman tantanin halitta, inda take kwarara zuwa cikin na'urar wanke-wanke, yawanci tare da taimakon faifan ruwa, tana juyawa zuwa ga mai wanki (wanda yawanci kwano ne, wanda manufarsa ita ce jigilar slurry zuwa tanki inda ake tura shi don ƙarin sarrafawa, kamar cire ruwa ko cire ruwa. Fitar wutsiya, akan injunan flotation na gargajiya, yana kan akasin ƙarshen tantanin halitta daga ciyarwa, yana tabbatar da cewa slurry yana tafiya duk tsawon tantanin halitta ta wuce bankuna da yawa waɗanda ke ɗauke da masu rarraba impeller, kafin a fitar da shi azaman wutsiya.

Nau'o'in sinadarai da dama suna shiga cikin flotation na kumfa, kuma wasu da yawa za a iya shiga. Na farko shine promoter ko frother. Wannan sinadari kawai yana ƙirƙirar kumfa mai ƙarfi don isa saman ba tare da karyewa ba. Girman kumfa yana da mahimmanci, kuma yanayin yana zuwa ga ƙananan kumfa, tunda suna ba da ƙarin wuraren saman (yana shafar daskararrun ma'adanai da sauri), kuma suna da kwanciyar hankali mafi girma. Na gaba, reagents na tarawa sune babban sinadari wanda zai samar da haɗin kai tsakanin takamaiman ma'adinai a saman kumfa. Masu tarawa suna shiga saman ma'adinai ko kuma suna haifar da amsawar sinadarai tare da ma'adinan, wanda ke ba shi damar kasancewa a haɗe don tafiya zuwa mai wanki. Barasa da ƙarancin acid sune nau'ikan masu tarawa guda biyu waɗanda ake amfani da su wajen amfani da ma'adinai.

Yadda Kumfa ke Aiki_img

Akwai kuma magungunan da ba a amfani da su sosai, kamar masu rage zafi, don rage yawan sinadarin da ke cikin iska, don kada su manne da kumfa, sinadarai masu daidaita pH, da kuma sinadaran da ke kunna iska. Sinadaran da ke kunna iska suna taimakawa wajen haɗa wani ma'adinai na musamman wanda ke da wahalar shawagi.

Kamfanoni kamar Cytec, Nalco, da Chevron Phillips Chemical Company sune manyan masu samar da dukkan nau'ikan sinadarai masu flotation.

Mafi kyau, za a ƙara sinadaran a cikin tankin sanyaya, tare da mai tayar da hankali, kafin a je cikin tantanin flotation, amma a lokuta da yawa, ana ƙara su ne kawai a cikin abincin, kafin ya shiga tantanin, yana dogara da motsin tantanin halitta da abubuwan da za su haɗu.

Ana buƙatar a niƙa ma'adinan daidai gwargwado don 'yantar da ma'adanai, yawanci raga 100 ko mafi ƙanƙanta (microns 150). Sannan a haɗa shi da ruwa zuwa kashi ɗaya bisa ɗari na daskararru (yawanci daga 5% zuwa 20%), wanda zai samar da mafi kyawun murmurewa daga ma'adanai. Ana ƙayyade wannan a cikin ƙwayoyin flotation na dakin gwaje-gwaje, suna gudanar da gwaje-gwaje da yawa don tantance kowane ma'aunin aikin.

Yadda Kumfa ke Aiki_img

Nau'ikan injinan iyo suma sun bambanta sosai, amma duk suna da kama sosai, domin suna shigar da iska a ƙarƙashin ruwa, sannan su watsa ta cikin tantanin halitta. Wasu suna amfani da na'urorin hura iska, na'urorin damfara iska, ko kuma aikin na'urar damfara ta iyo suna ƙirƙirar wani wuri a ƙarƙashinta da kuma jawo iska cikin injin, ta hanyar bututun tsayawa wanda kuma ke ɗauke da sandar damfara. Yana cikin cikakkun bayanai game da hanyar shigar da sinadarai, iska da ma'adanai a cikin ruwa wanda ya sa suka bambanta.

Kuma a matsayin tsokaci, na shaida ƙarin voodoo da da'awar karya game da inganci a cikin ƙirar injin flotation na kumfa fiye da komai tun zamanin Old West. Gabaɗaya yana da kyau a tsaya tare da kyakkyawan alama wanda ake amfani da shi sosai wajen flotation na ma'adinan da ake so.

Babban ci gaba ɗaya shine amfani da Column Flotation a matsayin mafi tsaftar tantanin halitta mai iyo a masana'antar jan ƙarfe (da kuma wasu masana'antu kaɗan). Yana samar da samfuri mai tsafta, kuma ya fi inganci a matsayin tantanin halitta mai tsafta, gabaɗaya, fiye da tantanin halitta mai iyo na gargajiya. Tantanin halitta mai iyo na ginshiƙai sun fara bayyana a cikin tsire-tsire a ƙarshen shekarun 1970 zuwa cikin shekarun 1980 kuma an karɓe su sosai a shekarun 1990. Babban yanayin da aka samu tare da tantanin halitta mai iyo na gargajiya shine Babban abu shine Mafi kyau, tare da manyan na'urori suna shigowa kasuwa a cikin shekaru da yawa da suka gabata.


Lokacin Saƙo: Nuwamba-23-2020