Thaum lub sijhawm ua cov granulation ntawm lub tshuab pub pellet, muaj cov pellets pub ib leeg lossis cov pellets pub ib leeg nrog cov xim sib txawv, feem ntau hu ua "paj pub". Qhov xwm txheej no yog ib txwm muaj hauv kev tsim cov khoom noj hauv dej, feem ntau yog qhia tias xim ntawm cov khoom me me uas raug rho tawm ntawm lub nplhaib tuag tsaus dua lossis sib dua li lwm cov khoom me me, lossis xim ntawm cov khoom me me tsis sib xws, yog li cuam tshuam rau qhov zoo ntawm tag nrho cov khoom noj.
Cov laj thawj tseem ceeb rau qhov xwm txheej no yog raws li nram no:
a)Cov khoom siv raw pub mis nyuj muaj ntau yam sib xyaw ua ke, muaj ntau hom khoom siv raw, sib xyaw tsis sib xws, thiab cov dej noo tsis sib xws ua ntej ua cov khoom noj.
b)Cov dej noo ntawm cov khoom siv raw siv rau kev ua granulation tsis sib xws. Hauv cov txheej txheem tsim cov khoom noj hauv dej, feem ntau yuav tsum ntxiv me ntsis dej rau hauv lub tshuab sib tov kom them rau qhov poob dej hauv cov khoom siv raw tom qab kev sib tsoo zoo heev. Tom qab sib tov, nws raug xa mus rau lub tshuab ua kom sov. Qee lub tuam txhab tsim khoom noj siv cov txheej txheem yooj yim dhau los ua cov khoom noj - muab cov khoom siv uas xav tau rau cov mis ncaj qha rau hauv lub tshuab sib tov thiab ntxiv dej txaus, es tsis txhob ua cov txheej txheem ntxiv qeeb qeeb raws li cov kev cai ntawm cov kws tshaj lij. Yog li ntawd, lawv pom tias nws nyuaj rau xyuas kom meej tias muaj kev faib khoom sib npaug ntawm cov khoom xyaw pub rau hauv cov dej yaj. Thaum peb siv cov khoom xyaw sib xyaw no rau kev kho kom sov, peb yuav pom tias vim yog qhov ua tau zoo ntawm lub tshuab ua kom sov, cov dej noo tsis tuaj yeem faib tau sai sai. Yog li ntawd, qhov kev loj hlob ntawm cov khoom noj ua tiav hauv qab kev ua pa sib txawv ntau ntawm ntau qhov sib txawv, thiab cov xim hierarchy tom qab granulation tsis meej txaus.
c)Muaj cov khoom siv rov ua dua uas rov ua granulation dua hauv lub thoob granulation. Cov khoom siv granular tom qab granulation tsuas yog hloov pauv mus ua cov khoom tiav tom qab txias thiab tshuaj ntsuam. Cov hmoov me me lossis cov khoom me me uas tau tshuaj ntsuam feem ntau nkag mus rau hauv cov txheej txheem ntau lawm rau kev rov ua granulation, feem ntau yog nyob rau hauv lub tshuab sib tov lossis tos rau granulation silo. Vim tias hom khoom xa rov qab no tau rov ua kom zoo thiab granulated, yog tias nws sib xyaw tsis sib xws nrog lwm cov khoom siv pabcuam lossis sib xyaw nrog cov khoom me me rov qab tom qab tshuaj ntsuam, nws qee zaum yuav tsim "cov khoom paj" rau qee cov mis pub.
d)Qhov du ntawm phab ntsa sab hauv ntawm lub qhov tuag nplhaib tsis sib xws. Vim yog qhov tiav ntawm qhov tuag tsis sib xws, qhov kev tiv thaiv thiab kev nias uas cov khoom ntsib thaum lub sijhawm nias yog txawv, ua rau muaj kev hloov xim tsis sib xws. Tsis tas li ntawd, qee lub pwm nplhaib muaj burrs ntawm phab ntsa qhov me me, uas tuaj yeem khawb qhov chaw ntawm cov khoom me me thaum lub sijhawm nias, ua rau muaj xim sib txawv rau cov khoom me me.
Cov txheej txheem txhim kho rau plaub qhov laj thawj rau kev tsim cov "cov ntaub ntawv paj" uas teev saum toj no twb meej heev lawm, feem ntau yog tswj kev sib xyaw ua ke ntawm txhua yam khoom hauv cov mis thiab kev sib xyaw ua ke ntawm cov dej ntxiv; Kev txhim kho kev ua haujlwm quenching thiab tempering tuaj yeem txo qhov kev hloov xim; Tswj cov khoom siv rov qab los ntawm lub tshuab. Rau cov mis uas yooj yim tsim cov "khoom siv paj", sim tsis txhob ncaj qha granulate cov khoom siv rov qab los ntawm lub tshuab. Cov khoom siv rov qab los ntawm lub tshuab yuav tsum tau sib xyaw nrog cov khoom siv raw thiab rov tsoo; Siv cov pwm zoo los tswj qhov du ntawm cov qhov tuag, thiab yog tias tsim nyog, zom cov qhov tuag ua ntej siv.
Nws raug pom zoo kom teeb tsa ob txheej ob txoj kab sib txawv thiab ob txheej ntev tsho tiv no, nrog lub sijhawm quenching txog li 60-120 vib nas this thiab qhov kub quenching ntau dua 100 ℃. Qhov quenching yog sib xws thiab kev ua tau zoo heev. Kev siv ntau lub ntsiab lus cua nkag ua rau thaj chaw hla ntawm cov khoom siv thiab pa dej ntau ntxiv, yog li txhim kho kev loj hlob ntawm cov khoom siv thiab txhim kho qhov quenching thiab tempering nyhuv; Lub vaj huam sib luag digital thiab lub ntsuas kub tuaj yeem tso saib qhov kub ntawm qhov txias, ua rau nws yooj yim rau cov neeg siv tswj txhua lub sijhawm.
Cov Ntaub Ntawv Tiv Tauj Kev Txhawb Nqa Kev Txawj Ntse：
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Lub sijhawm tshaj tawm: Lub Xya Hli-26-2023
