Lub ntsiab txo tus neeg sawv cev siv hauv tshuaj lom neeg Silicon Smelting

Muaj Petroleum coke, bituminous thee thiab charcoal. Txhawm rau txhawm rau txhawm rau txhawm rau tiv taus thiab tshuaj lom neeg ntawm cov khoom siv hluav taws xob, kuj tseem muaj kev sib xyaw ua ke ntawm cov pa roj coke, silica coke, xiav carbon, semi coke, low-temperature coke, thiab wood blocks. Nyob rau hauv cov tshuaj muaj pes tsawg leeg ntawm cov pa roj carbon monoxide cov neeg ua hauj, tsau carbon, tshauv, volatile teeb meem, thiab noo noo yuav tsum tau txiav txim siab tsuas yog. Feem ntau, cov pa roj carbon monoxide ruaj khov yuav tsum muaj siab, thiab tag nrho cov kev txo tus neeg sawv cev yuav tsum tau txo qis, ua rau cov khoom tsis huv tsawg dua los ntawm cov hmoov tshauv, txo cov slag npaum li cas, txo qis hauv hluav taws xob noj, thiab txo cov ntsiab lus impurity. hauv tshuaj silicon. Lub resistivity ntawm carbon txo cov neeg ua haujlwm yuav tsum siab thiab cov porosity yuav tsum siab. Lub resistivity ntawm lub cub tawg nqi feem ntau yog nyob ntawm tus neeg sawv cev txo cov pa roj carbon. Cov pa roj carbon monoxide muaj kev tiv thaiv hluav taws xob siab, kev ua haujlwm zoo tshuaj lom neeg, thiab siab silicon rov qab tus nqi.
Petroleum coke muaj cov hmoov tshauv qis tshaj plaws ntawm cov neeg ua haujlwm txo qis siv hauv kev tsim cov hlau silicon, nrog cov hmoov tshauv ntawm 0.17-0.6 feem pua, taag carbon ntawm 90-95 feem pua, thiab volatile cov ntsiab lus tsis pub tshaj 3.5 feem pua ​​-13 feem pua ​​. Cov tshuaj silicon smelting siv Petroleum coke li txo tus neeg sawv cev vim nws cov hmoov tshauv tsawg, uas yog qhov tsim nyog rau kev txhim kho cov khoom zoo. Txawm li cas los xij, vim qhov tsis muaj hluav taws xob tsis zoo, tsis muaj qhov tsis zoo, tsis yooj yim graphitization ntawm qhov kub thiab txias, thiab kev siv roj av coke siab, cov cua sov tsis yooj yim rau kev tswj, ua rau tsis muaj sintering ntawm cov nqi hluav taws xob, hluav taws kub hnyav, kev siv hluav taws xob ntau, thiab nyuaj rau kev tso tawm.
Ntoo charcoal muaj qhov tshwj xeeb tsis kam thiab reactivity, thiab tsis muaj impurity cov ntsiab lus, ua rau nws yog ib tug zoo tagnrho txo ​​tus neeg sawv cev rau smelting silicon siv nyob rau hauv industrial chemistry. Txawm li cas los xij, cov khoom ntawm ntoo charcoal ua los ntawm cov ntoo sib txawv thiab cov txheej txheem kuj txawv heev. Cov hmoov tshauv ntawm cov hlwv charcoal feem ntau yog ib nrab mus rau ib feem peb qis dua li cov charcoal nrog cov tawv ntoo, thiab cov tawv ntoo muaj qhov cuam tshuam loj rau cov hmoov tshauv ntawm charcoal. Cov khoom tseem ceeb ntawm charcoal yog carbon, nrog cov hmoov tshauv tsawg, feem ntau tsawg dua 10 feem pua. High resistivity thiab zoo tshuaj ua haujlwm. Ntau xyoo ntawm kev xyaum ua tau pov thawj tias charcoal yog ib qho tseem ceeb ntawm carbonaceous raw khoom kom tau raws li cov kev xav tau ntawm silicon smelting nyob rau hauv chemistry, tab sis lub hauv paus ntawm charcoal yog txwv thiab charcoal txo cov neeg ua hauj lwm siv tsis tau lawm.
Los ntawm qhov xwm txheej txawv teb chaws, feem coob ntawm lub teb chaws tsis siv charcoal lawm. Ntau tus neeg tsim khoom hauv tsev kuj tau ua haujlwm ntau hauv kev nrhiav thiab siv cov khoom siv hluav taws xob hloov pauv. Kev xyaum tau ua pov thawj tias ntawm ntau cov pa roj carbon emissions, bituminous thee yog lwm qhov zoo tshaj plaws txo tus neeg sawv cev ntxiv rau cov hluav taws kub ntawm cov tshuaj tiv thaiv muaj peev xwm thiab kev tiv thaiv tshwj xeeb.
Cov yam ntxwv ntawm bituminous thee yog qhov ua haujlwm siab, muaj peev xwm tiv thaiv tau, thiab cov ntoo tshauv tsawg bituminous thee tau los ntawm kev ntxuav. Cov ntsiab lus tshauv tuaj yeem ncav cuag li 3 feem pua, Fe2O3 cov ntsiab lus tuaj yeem ncav cuag 0.2-0.3 feem pua ​​, thiab Al2O3 cov ntsiab lus tsawg dua 1 feem pua. Cov hmoov tshauv ntawm txo tus neeg sawv cev bituminous thee hauv Suav teb feem ntau yog siab dua 3 feem pua, thaum cov hmoov tshauv ntawm txo tus neeg sawv cev bituminous thee nyob rau txawv teb chaws feem ntau yog nyob ib ncig ntawm 1 feem pua. Cov txheej txheem tshuaj siv los ntawm Soviet Union los xaiv cov thee bituminous tuaj yeem tsim cov thee huv nrog cov ntsiab lus hlau oxide hauv qab no 0.1 feem pua ​​. Kev ua haujlwm ntawm cov ntoo blocks yog txhawm rau ua kom muaj kev tiv thaiv ntawm cov ntaub ntawv txheej, thiab cov nyiaj siv tau muaj kev cuam tshuam rau lub qhov cub. Kev siv cov ntoo thaiv ntau dhau ua rau cov khoom siv xoob xoob, ua rau cov cua sov tsis zoo, thiab siv zog ntau ntxiv. Vim qhov qis qis qis thiab cov ntsiab lus carbon ntawm cov ntoo blocks, lawv qhov kev siv tiag tiag li txo cov neeg ua haujlwm tsawg.
Cov impurities nyob rau hauv cov ntaub ntawv raw yog cov hmoov tshauv, tag nrho cov muaj oxides. Hauv kev tsim tshuaj lom neeg, cov oxides hauv cov tshauv kuj yuav tsum tau txo, uas siv hluav taws xob thiab carbon. Ntxiv mus, qhov txo qis impurities tseem sib tov rau hauv cov kua silicon, txo lub zog ntawm silicon. Hauv kev xyaum tsim khoom, rau txhua txhua 1 feem pua ​​​​nce hauv qhov cub tawg