Hauv cov txheej txheem yas pelletizing niaj hnub no, cov twj nqus tsev thiab fcov txheej txheem lim dejUa lub luag haujlwm tseem ceeb, cuam tshuam ncaj qha rau qhov zoo ntawm cov khoom, kev ua haujlwm zoo, thiab lub neej ntev ntawm cov khoom siv. Kev ua cov yas pelletizing cuam tshuam nrog kev hloov cov khoom siv yas raw mus rau hauv pellets los ntawm cov theem xws li yaj, extrusion, thiab txiav. Thaum lub sijhawm no, lub tshuab nqus tsev ua kom ntseeg tau tias tshem tawm cov khoom tsis haum, dej noo, thiab cov khoom tsis zoo ntawm cov yas molten, yog li lav qhov khoom siv lub cev thiab kev ruaj khov tshuaj ntawm cov pellets kawg.
Thaum lub sijhawm yaj thiab extrusion ntawm cov yas pelletizing, cov khoom siv yas feem ntau muaj cov dej noo seem, cov khoom tsis muaj zog me me, thiab cua uas yuav nkag mus rau hauv thaum lub sijhawm ua tiav. Yog tias cov khoom tsis huv no tsis raug tshem tawm zoo, lawv tuaj yeem ua rau muaj qhov tsis zoo hauv cov khoom kawg, xws li cov npuas, kev tawg yooj yim, thiab cov xim tsis sib xws. Hauv cov xwm txheej hnyav, cov teeb meem no tuaj yeem ua rau kev ua haujlwm rov ua dua ntawm cov yas pellets. Los ntawm kev muab ib puag ncig tsis zoo ruaj khov, cov twj tso kua mis nqus tsev tau zoo rho tawm cov khoom tsis muaj zog no, ua kom ntseeg tau tias cov yas yaj huv. Tib lub sijhawm,cov lim dej nqus tsev, ua haujlwm ua cov khoom siv tiv thaiv sab saud ntawm lub twj tso kua mis, ntes cov khoom me me thiab cov khoom seem uas yuav yaj tau uas yuav nqa tawm ntawm cov yaj. Qhov no tiv thaiv cov tshuaj no kom tsis txhob nkag mus rau hauv lub twj tso kua mis sab hauv, qhov chaw uas lawv tuaj yeem ua rau hnav lossis thaiv, yog li ua rau lub twj tso kua mis nqus tsev ntev dua.
Nws yog ib qho tseem ceeb uas cov txheej txheem ua cov yas pelletizing ua rau muaj kev xav tau ntau rau qhov ruaj khov ntawm qib nqus tsev. Kev tsis txaus lossis kev hloov pauv ntawm kev siv zog tuaj yeem ua rau cov pa roj tsis tag nrho tawm ntawm cov yaj, cuam tshuam rau qhov ceev thiab kev sib xws ntawm cov pellets. Qhov no yog qhov tseem ceeb tshwj xeeb thaum tsim cov yas engineering lossis cov ntaub ntawv pob tshab siab, qhov twg txawm tias me ntsis ntawm cov npuas lossis cov khoom tsis huv tuaj yeem ua rau muaj qhov tsis zoo hauv cov khoom. Yog li ntawd, kev xaiv hom twj tso kua mis nqus tsev (xws li cov twj tso kua mis nqus tsev, cov twj tso kua mis qhuav, thiab lwm yam) thiab nruab nrog cov lim dej ntawm qhov tseeb sib xws tau dhau los ua qhov tseem ceeb ntawm kev tsim cov kab ntau lawm yas pelletizing.
Tsis tas li ntawd xwb, kev xaiv ntawmcov lim dej nqus tsevyuav tsum tau ua raws li cov yam ntxwv ntawm cov yas raw khoom. Piv txwv li, thaum ua cov yas rov ua dua tshiab lossis cov yas puv thiab hloov kho, cov khoom siv raw feem ntau muaj cov ntsiab lus tsis huv ntau dua. Hauv cov xwm txheej zoo li no, cov lim dej uas muaj peev xwm tuav cov plua plav ntau dua thiab kev lim dej raug dua yuav tsum tau ua kom tsis txhob hloov pauv ntau zaus thiab kev poob sijhawm cuam tshuam. Tsis tas li ntawd, rau qee cov yas uas yooj yim rau oxidation lossis thermal rhiab heev, nws yog qhov tsim nyog los suav nrog cov khoom siv tiv thaiv roj inert rau hauv lub kaw lus lim dej kom tiv thaiv cov khoom puas tsuaj hauv qhov chaw nqus tsev.
Los ntawm kev xav txog kev siv hluav taws xob zoo thiab kev tiv thaiv ib puag ncig, lub tshuab nqus tsev zoo tuaj yeem txo cov khoom pov tseg thiab kev siv hluav taws xob thaum lub sijhawm ua cov yas pelletizing. Los ntawm kev ua kom zoo dua cov kev ua haujlwm ntawm cov twj nqus tsev thiab cov voj voog txij nkawm ntawm cov lim dej, cov tuam txhab lag luam tuaj yeem txo cov nqi tsim khoom thaum tseem ua kom cov khoom zoo. Qee lub tshuab nqus tsev siab heev tau nruab nrog cov khoom siv saib xyuas ntse uas muaj peev xwm ntes tau qib nqus tsev thiab lim dej tsis kam hauv lub sijhawm tiag tiag, muab cov lus ceeb toom ntxov ntawm qhov tsis zoo ntawm lub kaw lus thiab txhim kho qib ntawm kev ua haujlwm tsis siv neeg.
Thaum cov khoom yas hloov zuj zus mus rau qhov ua tau zoo dua thiab muaj ntau yam ua tau zoo, qhov kev thov rau cov tshuab nqus tsev yuav txuas ntxiv nce siab. Qhov no yuav tsum muaj kev sib koom tes ntawm cov tuam txhab tsim khoom siv thiab cov neeg ua khoom yas los tsav kev tsim kho tshiab, ua rau muaj txiaj ntsig zoo dua thiab ruaj khov.
Lub sijhawm tshaj tawm: Lub Ib Hlis-10-2026
