Chromite abu ne mai mahimmanci don narke ferroalloys, bakin karfe da gami masu daraja.Masana'antar karafa na amfani da kusan kashi 60% na chromium, wanda akasari ake amfani da shi wajen samar da karafa, musamman bakin karfe.A lokaci guda, chromite kuma ana amfani da shi sosai a cikin masana'antar refractory, masana'antar sinadarai da masana'antar haske.
Kaddarorin ma'adinai
Akwai fiye da nau'ikan ma'adanai na chromium-dauke da abubuwan da aka samo a yanayi, amma kawai chromium ma'adinai da ƙimar masana'antu sune chromite (MGESE3), kuma magnno3), kuma magnesia.(FeO, Fe2O3) da sauran m mafita.A ka'ida, da sinadaran dabara na chromite ne FeO, Cr2O3, dauke da 68% Cr2O3, 32% FeO, matsakaici Magnetic, yawa 4.1 ~ 4.7g / cm3, Mohs taurin 5.5 ~ 6.5, da kuma surface bayyanar jeri daga baki zuwa duhu launin ruwan kasa.Ma'adinan Gangue galibi sun haɗa da olivine, serpentine da pyroxene, wani lokacin tare da ƙaramin adadin vanadium, nickel, cobalt da abubuwan ƙungiyar molybdenum.
Fasahar Gudanarwa
Albarkatun chromite na kasar Sin ba su da kyau sosai, sun fi maida hankali ne a Tibet, Xinjiang, Mongoliya ta ciki, Gansu da sauran larduna.Ana rarraba albarkatun chromite na waje a Afirka ta Kudu, Rasha, Brazil, Amurka da sauran ƙasashe.Chromite yana da halaye na babban yawa, matsakaicin maganadisu da ƙananan ƙwayoyin kristal.Gabaɗaya, ana jerawa ta hanyar wanke tama, raunin maganadisu mai rauni, rabuwa mai ƙarfi mai ƙarfi, rabuwar nauyi, flotation da sauran matakai.
Hanyar wankewa
Ya dace da ma'adinin chromite mara nauyi tare da babban sa na ɗanyen tama kuma galibi yumbu-kamar laka mai kyau azaman ƙazanta.Za'a iya zaɓar samfuran da suka cancanta ta hanyar wankewa mai sauƙi.
Rabuwar maganadisu
Chromite yana da matsakaicin kaddarorin maganadisu kuma ana iya raba shi ta bushe ko rigar ƙarfi mai ƙarfi.Magnetite da ke da alaƙa an fara raba shi da magnetic rauni, sannan magnetically rabu da CXJ ko CFLJ, farantin Magnetic SEPARATOR, zobe na tsaye high gradient Magnetic SEPARATOR, da dai sauransu The kayan aiki bushe da rigar beneficiation, kuma za a iya zabar m tattara kayayyakin.Hanyar rabuwar maganadisu tana da fa'idodi na babban ƙarfin aiki da alamun barga.
Shafin aikace-aikacen chromite na Afirka ta Kudu
Rarraba kafofin watsa labarai masu nauyi
Ƙayyadaddun nauyin chromite shine 4.1 ~ 4.7g / cm3, kuma ƙayyadadden nauyin gangue da ma'adanai na silicate na baƙin ƙarfe shine 2.7 ~ 3.2g / cm3.Yin amfani da bambance-bambance a cikin yawa tsakanin ma'adanai, karkace chute, jigging, tebur girgiza, fa'idar karkace za a iya amfani da Injin, centrifuges da sauran kayan rarrabuwa masu nauyi don rarrabawa.Wannan hanya ta dace da chromite tare da girman ƙwayar kristal mai zurfi, kuma ƙananan ƙwayoyin cuta suna da sauƙin ɓacewa a cikin wutsiya.
Yawo
Chromite na iya amfani da fatty acid ko masu tara amine don zaɓar ƙwararrun maida hankali ta hanyar roughing da share tafiyar matakai a ƙarƙashin yanayin pH masu dacewa.Ya dace da ƙwararrun chromites masu kyau da masu kyau.
Amfanin sinadarai
Ga wasu ma'adinan chrome waɗanda ke da wahalar sarrafa su ta hanyoyin samun fa'ida na inji, ana amfani da tsarin fa'ida-haɗin sinadarai ko hanyar sinadarai guda ɗaya.Hanyoyin amfani da sinadarai sun haɗa da: leaching selective, redox, fuse separation, sulfuric acid da chromic acid leaching, raguwa da sulfuric acid leaching, da dai sauransu.
Misalin fa'ida
Matsayin Cr2O3 da ke ƙunshe a cikin wani takamaiman wutsiya na chromite a Afirka ta Kudu shine 24.80%.Wutsiya ce ta sake zaɓen kan-site.The samfurin size ne -40 raga da barbashi size ne in mun gwada da uniform.A chromite yana samuwa a cikin kyawawan barbashi da jikin da ke da alaƙa da haɗawa.Babban ma'adanai na gangue Yana da olivine da pyroxene, tare da ƙananan laka mai kyau.Dangane da yanayin samfuran ma'adinai, an kafa tsarin cin gajiyar a matsayin zobe mai lebur ko a tsaye.
Kyawun chromite mai kyau wanda ke ƙunshe a cikin wutsiya na rabuwar rabe-raben nauyi akan rukunin yanar gizon yana ɗaukar faranti mai laushi ko zoben tsaye mai ƙarfi tsarin rabuwar maganadisu, wanda zai iya zaɓar samfuran tattara bayanai masu inganci.Ma'adinan da ke ɗauke da chromium a cikin wutsiyar maganadisu suna da ƙaƙƙarfan haɗe-haɗe ko wasu ma'adanai masu ɗauke da chromium marasa ƙima sun sami alamun fa'ida masu kyau.
Lokacin aikawa: Oktoba-12-2021