Laka mai yanka itace cakuda garin dutse da ruwa da ake samarwa yayin yankewa da goge marmara da dutse. Yankuna da yawa a arewacin ƙasarmu muhimman tushen sarrafa duwatsu ne, kuma ana samar da laka mai yawa kowace shekara, kuma tarinsa yana ɗaukar babban yanki na albarkatun ƙasa. Gadar dutse tana da laushi kuma tana da wahalar zubarwa. Yana da sauƙin tashi a sararin sama cikin iska mai ƙarfi, kuma yana kwarara zuwa kogin da ruwan sama a lokacin damina, yana haifar da gurɓataccen muhalli mai tsanani.
Manyan ma'adanai na gangue da ke cikin laka na yanka sun haɗa da feldspar, quartz, calcite, dolomite, amphibole, da sauransu. Manyan ma'adanai na ƙarfe da ƙazanta sun haɗa da ƙarfe silicate kamar ƙarfe na ƙarfe, magnetite, iron oxide, pyrite, da biotite. A halin yanzu, hanyar amfani da laka na yanka shine galibi samar da tubalin siminti da aka yi da iska da kuma yin kayan yumbu bayan cire ƙazanta. Na farko yana da babban ƙarfin sarrafawa kuma na biyun yana da fa'idodi masu yawa a fannin tattalin arziki.
Binciken fa'ida
A cikin wannan labarin, an gudanar da cikakken binciken amfani da amfani da beneficiation ga wakilin laka a yankin Jining. Ma'adanai masu mahimmanci a cikin laka na saw sune feldspar, ƙarfe na injiniya, ƙarfe mai maganadisu, da sauransu, kuma ƙazanta masu cutarwa sune limonite, biotite, muscovite, calcite, dolomite, hornblende, da sauransu. Girman kayan bai daidaita ba, ƙananan barbashi suna tsakanin 1-4mm da wasu laka mai laushi -0.037mm. Daga cikinsu, ƙarfe na injiniya da aka samar yayin sarrafawa da ƙarfe mai maganadisu a cikin ma'adinan da ba a sarrafa ba za a iya raba su ta hanyar maganadisu zuwa samfuran ƙarfe mai taro. Bayan rabuwar maganadisu mai ƙarfi, ana iya cire ƙazanta masu ɗauke da ƙarfe kamar limonite, biotite, da amphibole. Ana iya amfani da samfuran tattara dutse, kowane sashe na wutsiyar maganadisu azaman tubali mai iska ko kayan siminti, don cimma manufar amfani da shi gaba ɗaya.
1.Tabbatar da kwararar tsari
Haɗa halayen samfurin sawdust don tantance tsarin beneficiation: ana tace ma'adinan danye ta hanyar raga 30-+ raga 30 na niƙa hatsi mai kauri zuwa raga -30.
——-30 raga gauraye samfurin ƙarfe rabuwa ta hanyar raba magnetic drum + farantin lebur + zobe a tsaye + zobe a tsaye mai ƙarfi cire ƙarfe mai maganadisu - an rarraba tattarawar zuwa samfuran feldspar matsakaici-hatsi +300 raga mai kyau laka——Ana amfani da ƙaramin laka don cire ƙarfe sau biyu ta cikin na'urar lantarki don samun samfurin foda mai kyau.
2.Gwajin rabuwar maganadisu na tama da ba a sarrafa ba
An tace ma'adinan danye da raga 30, kuma sakamakon binciken an nuna shi a cikin Jadawali na 1.
Tebur 1. Sakamakon Amfani da Gwajin Gwaji da Tantancewa
A niƙa ma'adinan da aka yi da kauri mai kauri da yawan amfanin ƙasa daga 17.35% zuwa -30, a haɗa da samfurin a ƙarƙashin sieve, sannan a bi tsarin raba maganadisu na gargajiya na mai raba maganadisu na drum + farantin lebur + zoben tsaye + zoben tsaye. An nuna tsarin tafiyar a Hoto na 1, kuma sakamakon gwajin an nuna shi a Jadawali na 2.
Hoto na 1. Tsarin aikin gwajin rabuwar maganadisu na ma'adinai mai ɗanɗano.
Tebur na 2. Sakamakon gwajin rabuwar maganadisu na al'ada
Ana tantance ma'adinan danye + niƙa ma'adinan + cire ƙarfe sau uku ta hanyar gwaji na gargajiya, kuma ana iya samun samfuran tattarawa na tsakiya da ƙasa tare da yawan amfanin ƙasa na 92.57%, abun ciki na Fe2O3 na 0.525% da farin ciki na 36.15%. Ya kamata a yi la'akari da shi don tsarkake ƙarfe mai laushi da silicate na ƙarfe a cikin laka mai laushi tare da injin slurry mai matsakaici mai ƙarfi bayan rarrabuwa.
3. Cire ƙarfe daga ƙurar laka mai laushi
Ana fitar da sinadarin Lihuan na biyu daga cikin laka mai laushi da ke ƙasa da ragar -300 ta hanyar ambaliya, kuma ana amfani da tsarin cire ƙarfe sau biyu ta hanyar injin electromagnetic slurry don samun samfurin foda mai laushi. An nuna tsarin aikin a Hoto na 2, kuma sakamakon gwajin an nuna shi a cikin Jadawali na 3.
Hoto na 2. Tsarin aikin gwajin cire baƙin ƙarfe mai laushi na laka
Tebur 3. Ma'aunin cire ƙarfe na ƙamshi mai laushi
Bayan an tantance sinadarin Lihuan, farin sinadarin feldspar mai matsakaicin hatsi +300 ya karu daga 36.15% zuwa 56.49%, kuma farin laka mai kyau ya ragu zuwa 23.07%. Ana cire sinadarin -300 mai kyau daga ƙarfe sau biyu ta hanyar amfani da sinadarin electromagnetic slurry, kuma ana iya samun samfurin foda mai kyau na yumbu mai yawan amfanin ƙasa da kashi 42.31% da kuma farin 41.80%.
3. Gwajin tsari gaba ɗaya
Cikakken yanayin gwaji da alamomi don yin gwajin tsari gaba ɗaya.
Hoto na 3. Duk tsarin gwajin laka na yanke
Tebur na 4. Alamomin gwaji don dukkan tsarin
Haɗawa: Zafin biskit 1200℃
An tace ma'adinan laka da aka sassaka + ƙasa + raunin rabuwar maganadisu + farantin lebur + zobe a tsaye + tsarin raba maganadisu na lantarki don samun ma'adinan ƙarfe tare da yawan amfanin ƙasa na 0.32% da matakin TFe na 62.35%. Tare da yawan amfanin ƙasa na 38.56% da fari na 54.69% na samfuran tattarawar ƙarfe na feldspar na yumbu mai matsakaicin hatsi da yawan amfanin ƙasa na 42.31% na farin foda mai kyau na samfuran tattarawar yumbu mai ƙarancin foda; jimlar yawan amfanin wutsiyar maganadisu shine 18.81%, Ana iya amfani da shi azaman kayan aiki don tubalin da aka sanyaya.
Wannan tsarin fasaha yana ba da damar amfani da laka mai yanke gaba ɗaya, kuma yana iya samun fa'idodi mafi girma na tattalin arziki da mahimmancin kare muhalli na zamantakewa.
Lokacin Saƙo: Maris-04-2021