Puas yog tus yam ntxwv ntawm cov khoom siv raw yog qhov tsis tuaj yeem xav txog thaum xaiv lub tshuab ua qaib pellet?

Nov 25, 2025

Tso lus

Ua ntej, xav txog cov ntsiab lus fiber ntau ntawm cov khoom siv raw, qhov taw qhia tseem ceeb cuam tshuam rau kev xaiv cov tsiaj pelleting tshuab. Crude fiber raw cov ntaub ntawv xws li straw thiab forage feem ntau suav rau 40%-60% ntawm nyuj thiab yaj. Cov ntaub ntawv no muaj tsawg hardness tab sis ntev fibers, ua rau lawv nquag tangling thiab nyuaj rau compress. Yog li ntawd, lub nplhaib tuag pellet zeb nrog siab extrusion siab thiab ib tug dav pub channel yuav tsum tau. Lub extrusion chamber tsim los ntawm lub nplhaib tuag thiab siab chais nyob rau hauv lub nplhaib tuag pellet zeb tuaj yeem ua kom tag nrho cov fibers ntev, thiab cov qauv tsim tawm kuj txo cov fiber ntau. Flat tuag pellet mills, ntawm qhov tod tes, muaj qis extrusion siab thiab nqaim pub nkag, ua rau lawv tsuas yog tsim nyog rau kev ua cov concentrates nrog cov ntsiab lus ntawm cov khoom siv raw ntawm tsawg dua 20%, xws li pob kws thiab taum noj mov sib tov. Rau silage nrog cov ntsiab lus ntawm cov khoom siv raw li 60%, lub tshuab pellet nruab nrog lub tshuab ua ntej- compression yog tsim nyog rau pre-compress cov ntaub ntawv raw rau hauv ib tug ntom aggregate ua ntej extrusion.

Cov dej noo thiab hardness ntawm cov khoom siv raw kuj yuav tsum tau ua tib zoo xav txog. Cov dej noo ntawm cov ntaub ntawv raw feem ntau yuav tsum tau tswj ntawm 12% thiab 18%. Rau kev ua haujlwm siab- cov ntaub ntawv noo noo (xws li cov silage tshiab, nrog cov dej noo ntau tshaj 40%), yuav tsum xaiv lub tshuab pellet nrog lub tshuab ziab khaub ncaws, lossis lub cev qhuav dej yuav tsum tau nruab ua ntej cov khoom siv; txwv tsis pub, cov teeb meem xws li xoob pellets thiab ua kom tuag yuav tshwm sim. Rau siab -cov ntaub ntawv hardness, xws li pob kws thiab sorghum, lub siab rollers thiab tuag ntawm lub tshuab ua rau nqaij qaib noj yuav tsum tau ua los ntawm siab- cov ntaub ntawv hardness, xws li alloy steel dies thiab siab -chromium cam khwb cia hlau siab rollers, nrog ib tug hardness ntawm HRC55 los yog siab dua, muaj peev xwm ntawm withstanding siab {{11} exensity} hnav.

Rau kev ua cov ntaub ntawv nyoos xws li ntses thiab nqaij thiab pob txha noj mov, cov khoom siv hlau zoo tib yam yog txaus, txo cov nqi khoom siv.

Cov yam ntxwv sib xyaw ntawm cov khoom siv raw kuj tseem cuam tshuam rau kev xaiv ntawm pellet zeb. Thaum tsim cov khoom noj sib xyaw, yog tias cov khoom siv raw muaj qhov sib txawv loj (xws li sib xyaw ntawm cov bran thiab cov limestone hnyav), pellet zeb nrog cov khoom sib xyaw ua ke yuav tsum raug xaiv los xyuas kom meej tias cov khoom siv raw yog sib npaug ua ntej extrusion, tsis txhob muaj cov khoom noj stratification hauv cov pellets. Tsis tas li ntawd, qee cov khoom siv tshwj xeeb (xws li premixes uas muaj cov vitamins) yog qhov kub thiab txias -sensitive, yuav tsum tau qis- kub pellet zeb los tswj qhov kub extrusion qis dua 60℃kom tsis txhob muaj cov as-ham.

Cov khoom tseem ceeb ntawm cov pellet txiag rau tsiaj noj yuav tsum tau hloov kho tshwj xeeb rau cov yam ntxwv ntawm cov khoom sib txawv. Thaum ua cov ntaub ntawv ntxhib fiber ntau, qhov tuag aperture yuav tsum yog 4-6 hli, thiab qhov sib piv ntawm cov channel ntev rau aperture yuav tsum tau tswj ntawm 8: 1 txhawm rau pab txhawb fiber ntau. Thaum ua cov ntaub ntawv zoo, qhov tuag aperture tuaj yeem txo mus rau 2-3mm kom nce particle ntom. Qhov kev ntxhib los mos ntawm lub siab cov menyuam kuj yuav tsum tau kho. Coarse fiber raw cov ntaub ntawv yog tsim rau sib sib zog nqus kev ntxhib los mos siab rollers (kev ntxhib los mos qhov tob 1.5mm) los txhim kho cov khoom muaj peev xwm tuav; Cov ntaub ntawv zoo yog tsim rau cov khoom siv ntiav ntiav (qhov tob ntawm 0.5mm) kom tsis txhob muaj ntau dhau extrusion thiab gelatinization ntawm cov ntaub ntawv raw.