1. Koob Coke: Ib qho piv txwv ntawm Kev Ntsws Tsawg thiab Qhov Ceev Tseeb Siab
- Cov Yam Ntxwv ntawm Lub Cev: Cov koob coke muaj cov qauv fibrous lossis elongated nrog cov qhov elongated elliptical uas teeb tsa raws li kev txiav txim. Cov qauv no qhia tau tias muaj peev xwm ua kom ntom zoo heev thaum lub sijhawm calcination.
- Kev Ntsws ntawm Calcination:
- Koob coke muaj qhov txo qis qis, feem ntau yog li ntawm 10% txog 20%. Nws cov qauv fibrous ua tiav qhov txo qis los ntawm kev hloov pauv molecular thiab qhov kaw qhov hauv qab qhov kub siab, thaum qhov kev txiav txim siab ntawm qhov hws txo qhov chaw rau qhov tsis sib haum xeeb, yog li txo qis qhov txo qis tag nrho.
- Piv txwv li, ntawm 1300 ° C calcination, qhov volumetric shrinkage ntawm koob coke yuav tsuas yog ib nrab ntawm cov coke daim txhuam cev, vim nws muaj peev xwm los sib npaug disperse thermal kev ntxhov siab.
- Qhov Ceev Tseeb:
- Koob coke muaj qhov ceev tiag tiag siab, feem ntau ncav cuag 2.10–2.15 g / cm³. Qhov no qhia txog nws qib siab ntawm graphitization thiab cov qauv crystalline ntom ntom, ze rau qhov kev npaj ntawm cov txheej carbon hauv nws cov qauv fibrous.
- Cov kev tshawb fawb qhia tau hais tias qhov tseeb ntawm cov koob coke yog kwv yees li 5% -10% siab dua li ntawm cov sponge coke, vim muaj qhov tsis zoo ntawm cov qauv tsawg dua thiab cov txheej carbon sib dhos nruj dua.
2. Sponge Coke: Ib qho piv txwv ntawm High Shrinkage thiab Low True Density
- Cov Yam Ntxwv ntawm Cov Qauv: Cov roj nplaum muaj cov qauv zoo li daim txhuam cev, nrog rau cov qhov me me thiab faib tsis sib xws, cov phab ntsa nyias nyias (phab ntsa char), thiab brittleness.
- Kev Ntsws ntawm Calcination:
- Cov roj nplaum ua npuas ncauj muaj qhov nrawm nrawm, feem ntau yog li ntawm 30% txog 50%. Nws cov qauv porous tsis zoo yog qhov yooj yim rau qhov pore tawg thaum lub sijhawm calcination vim yog kev tso tawm volatile thiab thermal stress concentration, ua rau muaj kev ntswj loj.
- Piv txwv li, ntawm 1200 ° C calcination, qhov volumetric shrinkage ntawm daim txhuam cev coke yuav tshaj 40%, siab dua li ntawm koob coke.
- Qhov Ceev Tseeb:
- Cov roj nplaum coke muaj qhov ceev tiag tiag qis, feem ntau ntawm 1.90 thiab 2.05 g / cm³. Qhov no yog vim muaj ntau qhov seem ntawm cov qhov hws thiab kev teeb tsa tsis zoo ntawm cov txheej carbon hauv nws cov qauv, ua rau muaj ntau qhov tsis zoo ntawm cov khoom siv crystalline.
- Piv rau cov koob coke, qhov ceev tiag tiag ntawm cov sponge coke yuav qis dua 10% -15%, vim tsis txaus densification.
3. Shot Coke: Lub Xeev Nruab Nrab nrog Kev Ntsws Nruab Nrab thiab Qhov Ceev Tseeb
- Cov Yam Ntxwv ntawm Cov Qauv: Cov coke uas raug txhaj zoo li lub voos xwmfab lossis zoo li pellet, nrog rau qhov chaw tawv thiab ob peb lub qhov hws, uas sawv cev rau cov qauv nruab nrab ntawm cov koob coke thiab cov coke daim txhuam cev.
- Kev Ntsws ntawm Calcination:
- Cov tshuaj coke feem ntau muaj qhov nrawm ntawm 20% txog 30%. Nws cov qauv kheej kheej raug ntswj vim qhov nro ntawm qhov chaw thaum lub sijhawm calcination, tab sis qhov porosity sab hauv tsawg txwv qhov nrawm ntawm qhov ntswj.
- Piv txwv li, ntawm 1250 ° C calcination, qhov volumetric shrinkage ntawm txhaj tshuaj coke yuav yog 25%, poob ntawm qhov ntawm koob coke thiab daim txhuam cev coke.
- Qhov Ceev Tseeb:
- Feem ntau cov tshuaj coke muaj qhov ceev tiag tiag ntawm 2.00 thiab 2.10 g/cm³. Nws cov qauv ntom zoo dua li cov tshuaj coke daim txhuam cev tab sis qis dua li cov tshuaj coke koob, ua rau muaj qhov ceev tiag tiag nruab nrab.
- Kev tshawb fawb qhia tau hais tias qhov tseeb ntawm cov coke shot yog kwv yees li 5% siab dua li ntawm cov coke sponge tab sis qis dua 3% -5% dua li ntawm cov coke koob.
Kev Tshawb Fawb Txog Kev Sib Raug Zoo ntawm Cov Qauv thiab Khoom
- Lub Tshuab Ntsws:
- Cov qauv fibrous uas tau txiav txim siab ntawm koob coke txo cov kev ntswj tsis sib xws, txo nws qhov nrawm; cov qauv porous tsis sib xws ntawm daim txhuam cev coke ua rau muaj kev ntswj siab vim yog qhov pore tawg; cov qauv spherical ntawm txhaj tshuaj coke ua tiav qhov nruab nrab ntswj los ntawm qhov nro ntawm qhov chaw.
- Lub Txheej Txheem Ceev Tseeb:
- Qhov ceev tiag tiag muaj feem cuam tshuam ncaj qha rau qhov ntom ntawm cov qauv crystalline. Cov txheej txheem carbon uas tau txiav txim siab thiab qhov ceev tsis zoo ntawm cov koob coke ua rau muaj qhov ceev tiag tiag siab; cov qauv tsis sib xws thiab cov qhov seem ntawm cov tshuaj txhuam coke txo qhov ceev tiag tiag; cov tshuaj txhuam coke muaj cov yam ntxwv nruab nrab.
- Cov Lus Qhia Txog Kev Txhim Kho Cov Txheej Txheem:
- Rau cov ntawv thov uas xav tau kev ntswj me me thiab qhov ceev tiag tiag siab (piv txwv li, cov electrodes graphite muaj zog siab), cov koob coke yog qhov zoo dua;
- Rau cov ntawv thov uas tsis tshua muaj nqi thiab xav tau kev ua haujlwm tsawg dua (piv txwv li, roj), cov roj coke lossis cov roj coke yuav tsim nyog dua;
- Kev kho qhov kub ntawm calcination (piv txwv li, siab dua 1300 ° C) thiab qhov kub thiab txias (piv txwv li, qis dua 50 ° C / feeb) tuaj yeem ua kom zoo dua qhov ceev thiab qhov ntsws ntawm koob coke.
Lub sijhawm tshaj tawm: Plaub Hlis-09-2026