Bauxite yana nufin ma'adinan da za a iya amfani da shi a masana'antu, kuma an haɗa shi da ma'adinan da aka haɗa da gibbsite da monohydrate a matsayin manyan ma'adanai. Bauxite shine mafi kyawun kayan da ake amfani da su don samar da aluminum na ƙarfe, kuma yawan amfani da shi yana wakiltar sama da kashi 90% na jimlar yawan bauxite a duniya. Fannin amfani da bauxite ƙarfe ne da ba ƙarfe ba. Duk da cewa adadin wanda ba ƙarfe ba ƙarami ne, yana da amfani iri-iri. Ana amfani da Bauxite a masana'antar sinadarai, ƙarfe, yumbu, kayan da ba su da ƙarfi, abrasives, adsorbents, masana'antar haske, kayan gini, masana'antar soja, da sauransu.
Halayen ma'adinai da tsarin ma'adinai
Bauxite cakuda ne na ma'adanai da yawa (hydroxides, ma'adanai na yumbu, oxides, da sauransu) tare da aluminum hydroxide a matsayin babban sashi. Ana kuma kiransa "bauxite" kuma yawanci ya haɗa da gibbsite. , Diaspore, boehmite, hematite, kaolin, opal, quartz, feldspar, pyrite da sauran ma'adanai da yawa, wanda sinadaransa galibi AI2O3, SiO2, Fe2O3, TiO2, na biyu. Sinadaran sun haɗa da CaO, MgO, K2O, Na2O, S, MnO2 da kwayoyin halitta, da sauransu, a cikin fari, launin toka, launin toka-rawaya, rawaya-kore, ja, launin ruwan kasa, da sauransu.
Kyautatawa da tsarkakewa
Wasu ma'adanai da aka haƙo daga bauxite na iya cika buƙatun aikace-aikacen. Bauxite na al'ada yana ƙayyade tsarin beneficiation bisa ga yanayin ma'adanai masu ƙazanta. A lokaci guda, ƙazanta da ke da alaƙa da ma'adanai masu ɗauke da aluminum a wasu bauxites yana da wahalar cirewa ta hanyar injiniya ko ta zahiri.
01
Rarraba fa'idodi
Ana iya raba yashi mai siffar quartz da foda bauxite ta hanyar wankewa, yankewa ko kuma tantancewa don inganta ingancinsa. Ya dace da boehmite mai yawan silicon.
02
Amfani da nauyi
Amfani da matsakaicin matsakaici mai nauyi zai iya raba jajayen yumbu mai ɗauke da ƙarfe a cikin bauxite, kuma mai tattarawa mai karkace zai iya cire siderite da sauran ma'adanai masu nauyi.
03
Rabuwar maganadisu
Amfani da raunin rabuwar maganadisu zai iya cire ƙarfen maganadisu da ke cikin bauxite, da kuma amfani da kayan aikin rabuwar maganadisu masu ƙarfi kamar su raba maganadisu na farantin, raba maganadisu mai tsayi, raba maganadisu mai ƙarfin lantarki na iya cire ƙarfen oxide, titanium da silicate na ƙarfe, da sauransu. Zaɓin kayan maganadisu masu rauni na iya ƙara yawan aluminum yayin da rage farashin samar da alumina da sarrafawa.
04
Tafiye-tafiye
Ga sulfide kamar pyrite da ke cikin bauxite, ana iya amfani da xanthate flotation don cirewa; ana iya amfani da flotation mai kyau da baya don cire ƙazanta kamar pyrite, titanium, silicon, ko zaɓar abun ciki na AI2O3 har zuwa 73% na bauxite mai tsarki.
Samar da alumina
Ana amfani da tsarin Bayer ne galibi don samar da alumina daga bauxite. Wannan tsari yana da sauƙi, amfani da makamashi da farashi kaɗan ne, kuma ingancin samfurin yana da kyau.) Ga bauxite mai ƙarancin rabo na aluminum da silicon, an ɗauki hanyar simintin soda lime, kuma ana iya amfani da hanyar Bayer da hanyar simintin soda lime a cikin tsarin samarwa tare.
Samar da gishirin aluminum
Tare da bauxite, ana iya samar da aluminum sulfate ta hanyar hanyar sulfuric acid, kuma ana iya samar da polyaluminum chloride ta hanyar hanyar hazo mai zafi na hydrochloric acid.
Fannin Ayyukan Fasaha na Cibiyar Zane-zanen Injiniya ta Huate
①Binciken abubuwan da aka saba da kuma gano kayan ƙarfe.
②Cire da tsarkake ƙazanta daga ma'adanai marasa ƙarfe, kamar Ingilishi, Sinanci, zamiya, fluorescent, Gaoling, aluminum ma'adinai, ganye kakin zuma, mai nauyi lu'ulu'u da sauran ma'adanai marasa ƙarfe.
③Karin ƙarfe, titanium, manganese, chromium, vanadium da sauran ma'adanai marasa ƙarfe.
④Kare ma'adanai masu rauni kamar su tungsten ma'adinai, tantalum niobium ma'adinai, durian, lantarki, da girgije.
⑤ Cikakken amfani da albarkatu na biyu kamar su wutsiya daban-daban da kuma tarkacen narkewa.
⑥ Haɗaɗɗen beneficiation na ma'adanai masu launi, maganadisu, nauyi, da kuma flotation.
⑦ Na'urar firikwensin mai hankali tana rarraba ma'adanai marasa ƙarfe da waɗanda ba ƙarfe ba.
⑧ Gwajin sake zaɓen rabin masana'antu.
⑨ Ƙara foda mai kyau kamar niƙa kayan abu, niƙa ƙwallo da kuma rarrabawa.
⑩ Tsarin maɓallan EPC kamar niƙa, zaɓi kafin a yi amfani da shi, niƙa ma'adinai, rabuwar maganadisu (mai nauyi, flotation), shiryawa, da sauransu don zaɓar ma'adinai.
Lokacin Saƙo: Disamba-20-2021