Poleiti ea Lesela ea Alumina: Likopo tsa Bohlokoa bakeng sa Tšireletso le Bokgoni ba Liindasteri

Tlhahisong ea indasteri, ho hohlana, mocheso o phahameng le mafome a lik'hemik'hale hangata li khutsufatsa bophelo ba lisebelisoa le ho sitisa ts'ebetso.poleiti ea lesela la alumina—e entsoe ka Al₂O₃ e hloekileng haholo 'me e siloa mochesong o fetang 1700°C—e rarolla lintlha tsena tsa bohloko. Ka ho thatafala ha Rockwell ha 80-90 HRA le ho hanyetsa ho tsofala ka makhetlo a 266 ho feta tšepe ea manganese, e fetohile ntho ea bohlokoa indastering ea bohlokoa. Ka tlase ke lits'ebetso tsa eona tsa mantlha le hore na ke hobane'ng ha e le letsete le bohlale bakeng sa likhoebo tse ikemiselitseng ho fokotsa litšenyehelo le ho matlafatsa botsitso.

1. Likopo tsa Bohlokoa tsa Indasteri

Lipoleiti tsa alumina tse koahelang lia ipabola maemong a thata, e leng se etsang hore li be bohlokoa haholo libakeng tseo lisebelisoa li mamellang khohlano e sa khaotseng, tšusumetso, kapa mocheso o feteletseng. Tsena ke tšebeliso ea tsona e ka sehloohong:

Indasteri ea Matla a Mocheso le Mashala

Li-conveyor tsa mashala, li-pulverizer, le liphaephe tsa molora o fofang lifemeng tsa motlakase le merafong li tobana le ho taboha ho matla ho bakoang ke likaroloana tsa mashala. Li-liner tsa tšepe tsa setso lia senyeha ka likhoeli, e leng se bakang nako e jang chelete e ngata ea ho sebetsa. Li-liner tsa alumina li eketsa bophelo ba likarolo ka makhetlo a 10, e leng se nolofalletsang lilemo tsa ts'ebetso e tsoelang pele. Khanyetso ea tsona ea mocheso o phahameng oa 1700°C e boetse e loketse litsamaiso tsa boiler le likanale tsa ho ntša molora.

Makala a Tšepe, Samente le Merafo

Tlhahisong ea tšepe, li-liner tsa alumina li sireletsa li-tapholes tsa blast oven, li-ladle le melomo ea converter ho tsoa khoholehong ea tšepe e qhibilihisitsoeng le slag, li eketsa bophelo ba ts'ebeletso ka 50%. Bakeng sa lifeme le merafo ea samente, li kenya li-chute, li-crusher le li-silling mill, li sireletsa khahlanong le ts'usumetso ea oli le clinker. Liphaephe tsa merafo tse nang le alumina li fokotsa ho tsofala haholo, li thibela ho lutla le ho eketsa phallo.

Liindasteri tsa Lik'hemik'hale le Khalase

Dimela tsa dikhemikhale di itshetlehile ka di-liner tsa alumina bakeng sa dipompo, dijana tsa karabelo, le diphaephe tse sebetsanang le di-acid tse senyang, metheo le marothodi. Di hanela asiti e matla ya sulfuric le di-media tse ding tse matla, di qoba ho dutla le tshilafatso ya dihlahiswa. Tlhahisong ya khalase, ho hanyetsa ha tsona mocheso wa 1600°C ho di etsa tse loketseng bakeng sa masela a ontong, ho boloka disebediswa le ho netefatsa boleng bo tsitsitseng ba khalase.

Tšebeliso e Ikhethang

Ka ntle ho liindasteri tsa mantlha, lipoleiti tsa alumina tse hloekileng haholo (99% Al₂O₃) li sebeletsa ka lijekete tse sa keneleng likulo tsa sesole (tšireletso ea Boemo ba 3-6) le likoloi tse hlometseng—moralo oa tsona o bobebe o ntlafatsa boiketlo ntle le ho beha polokeho kotsing. Libakeng tsa ho etsa thepa ea motheo, li beha li-chute le li-crucible, li mamella ho taboha ha tšepe e qhibilihisitsoeng le lits'ebetso tsa ho lahla tse tsitsitseng.