Kev Nyuaj Siab Thaum Ntxov: Tus "Cinderella" ntawm Kev Lag Luam Roj Refining
Keeb Kwm: Thaum pib ntawm lub xyoo pua 20th, nrog rau kev siv cov thev naus laus zis tawg roj av, cov chaw ua roj tau tsim ntau yam khoom tsis zoo - petroleum coke. Nws tau suav tias yog "cov khoom seem qis tshaj plaws" nrog tus nqi siv qis heev.
Kev Siv Thaum Pib: Nws cov qhov hluav taws xob tseem ceeb yog ua roj pheej yig (rau kev tsim hluav taws xob thiab hauv cov chaw tsim cement) lossis ua cov khoom siv raw rau kev tsim cov pa roj carbon electrodes (xws li cov anodes siv hauv kev smelting txhuas). Lub sijhawm no, nws qhov zoo sib txawv heev, thiab nws raug suav hais tias yog cov khoom siv "qub thiab tsis zoo".
Catalyst of War: Kev Sawv ntawm Electric Arc Furnace Steelmaking
Lub Sijhawm Tseem Ceeb: Nyob ib puag ncig lub sijhawm Tsov Rog Thoob Ntiaj Teb Zaum Ob, kev siv tshuab ua hlau hluav taws xob arc (EAF) tau muaj kev loj hlob sai. Qhov kev thov rau cov hlau tshwj xeeb ua tau zoo heev thaum lub sijhawm ua tsov rog. Lub hauv paus tseem ceeb ntawm EAF yog lub electrode, uas yuav tsum tiv taus qhov kub ntawm hluav taws xob arc siab txog 3000 ° C thiab muaj kev coj hluav taws xob zoo heev.
Cov Khoom Siv Uas Muaj Qhov Tsis Txaus: Cov electrodes carbon ib txwm tsis ua tau raws li qhov yuav tsum tau ua. Lawv yooj yim oxidized, muaj kev siv ceev ceev, thiab kev ua haujlwm tsawg. Cov neeg pom tias nws yog qhov tsim nyog los txhim kho qhov huv thiab cov qauv siv lead ua ntawm cov khoom siv electrode raw.
Kev Taw Qhia Txog "Graphitization": Thaum lub sijhawm no, cov thev naus laus zis "graphitization", uas tau pib los ntawm Edward G. Acheson txoj kev tsim cov graphite cuav thaum xyoo pua 19th, tau siv rau cov roj av coke. Nws tau pom tias cov roj av coke uas raug kho kub siab tshaj 2500 ° C tau dhau los ua qhov kev ua tau zoo, ua tau zoo raws li qhov xav tau ntawm EAF electrodes. Qhov no tau cim thawj qhov kev hloov pauv tseem ceeb hauv txoj hmoo ntawm cov roj av coke - nws qhov kev hloov pauv los ntawm roj mus rau cov khoom siv tseem ceeb hauv kev lag luam.
Lub Hauv Paus ntawm Kev Lag Luam: Kev Sib Koom Tes nrog Kev Lag Luam Aluminium
Kev Sib Raug Zoo: Tom qab ua tsov rog, thaum lub sijhawm kev tsim kho dua tshiab thoob ntiaj teb, kev lag luam txhuas tau loj hlob sai. Lub tshuab hluav taws xob Hall-Héroult rau kev tsim cov hlau txhuas xav tau ntau cov anodes uas tau ci ua ntej, thiab cov roj av coke zoo (tshwj xeeb tshaj yog cov "coke ntsuab" uas muaj sulfur tsawg) yog cov khoom siv raw tseem ceeb.
Kev Loj Hlob Uas Muaj Kev Xav Tau: Qhov kev thov loj heev los ntawm kev lag luam txhuas tau ua rau kev lag luam roj av coke ruaj khov thiab txhawb kev tshawb fawb tob txog qhov zoo ntawm roj av coke (xws li cov ntsiab lus sulfur, cov hlau tsis huv, thiab cov coefficient nthuav dav thermal), tso lub hauv paus ruaj khov rau kev siv graphitization tom ntej.
Lub sijhawm tshaj tawm: Lub Kaum Hli-10-2025