Cov yam ntxwv cuam tshuam rau kev ruaj ntseg ntawm cov dej pub hauv dej

Nrog rau kev txhim kho txuas ntxiv ntawm kev lag luam pub khoom noj hauv ntiaj teb, cov kev xav tau rau cov ntsuas ntawm cov khoom noj pellet yog nce siab, nws tsis yog tsuas yog cov kev cai sab hauv yuav tsum zoo (xws li kev noj zaub mov zoo, kev tiv thaiv kab mob, kev tiv thaiv ib puag ncig, thiab lwm yam). , tab sis kuj cov kev xav tau zoo sab nraud yog nce siab (xws li xim, ntxhiab, qhov loj thiab qhov ntev ntawm cov pellets pub, tus nqi poob hauv dej, thiab lwm yam).Vim tias qhov chaw nyob tshwj xeeb ntawm cov tsiaj hauv dej, cov khoom noj sib txuam yuav tsum muaj dej ruaj khov kom tsis txhob tawg sai, tawg thiab poob.Yog li ntawd, cov dej stability ntawm cov dej pub yog ib qho tseem ceeb Performance index los xyuas kom meej nws zoo.Cov yam ntxwv cuam tshuam rau kev ruaj ntseg ntawm cov dej pub hauv dej yog raws li hauv qab no:

Ua ntej, pellet loj ntawm raw cov ntaub ntawv
Lub pellet loj ntawm raw cov ntaub ntawv txiav txim qhov chaw ntawm cov khoom noj muaj pes tsawg leeg.Qhov loj dua cov pellet loj, qhov loj ntawm thaj chaw saum npoo, muaj zog dua qhov muaj peev xwm nqus dej noo hauv chav ua ntej granulating, uas yog qhov tsim nyog rau tempering thiab pellet tsim, kom cov pellet pub muaj kev ruaj ntseg zoo hauv dej, thiab tseem tuaj yeem ua kom lub sijhawm nyob ntev. nyob rau hauv cov tsiaj txhu hauv dej, txhim kho cov nyhuv nqus, thiab txo cov pa phem hauv dej.Cov ntses pub raw cov ntaub ntawv yuav tsum dhau los ntawm 40 lub hom phiaj txheem sieve tom qab sib tsoo, 60 lub hom phiaj txheem sieve cov ntsiab lus ≤20%, thiab cw noj raw cov ntaub ntawv tuaj yeem dhau 60 lub hom phiaj txheem sieve.

Qhov thib ob, lub tshuab pellet tuag
Qhov sib piv ntawm lub nplhaib pwm (qhov zoo qhov tob / qhov loj) kuj muaj qee yam cuam tshuam rau kev ruaj ntseg ntawm cov dej hauv dej.Cov khoom noj pellets ua los ntawm lub nplhaib pwm nias nrog qhov loj compression piv yuav muaj zog dua hardness, nruj qauv thiab lub sij hawm ntev dej tsis kam.Qhov sib piv ntawm qhov sib piv ntawm cov nplhaib dej tuag yog 10-25, thiab cov cw noj yog 20-35.

Thib peb, quenched thiab tempered
Lub hom phiaj ntawm tempering yog: 1. Los ntawm kev ntxiv chav rau soften cov khoom, ntau plasticity, conducive rau extrusion forming, thiaj li mus txhim kho lub pelleting muaj peev xwm ntawm lub tshuab pelleting;2. Los ntawm kev ua hydrothermal, cov hmoov txhuv nplej siab hauv cov khoom noj tuaj yeem ua tiav gelatinized, cov protein tuaj yeem denatured, thiab cov hmoov txhuv nplej siab tuaj yeem hloov mus rau hauv cov carbohydrates yooj yim los txhim kho kev zom zaub mov thiab kev siv cov khoom noj;3. Txhim kho qhov ntom ntawm cov pellets, zoo li du, tsis yooj yim rau eroded los ntawm dej, ua kom muaj kev ruaj ntseg hauv dej;4. Cov nyhuv kub kub ntawm cov txheej txheem tempering tuaj yeem tua cov kab mob phem xws li Escherichia coli thiab Salmonella hauv cov khoom noj, txhim kho kev cia khoom thiab ua rau muaj kev noj qab haus huv ntawm cov tsiaj txhu hauv dej.

Plaub, nplaum
Adhesives yog tshwj xeeb additives uas plays lub luag hauj lwm ntawm kev sib raug zoo thiab tsim nyob rau hauv dej pub, uas yuav roughly muab faib ua tej yam ntuj tso tshuaj thiab tshuaj synthetic tshuaj.Cov qub tuaj yeem muab faib ua cov suab thaj (cov hmoov txhuv nplej siab, nplej, pob kws noj mov, thiab lwm yam) thiab cov kua nplaum tsiaj (pob txha nplaum, daim tawv nqaij kua nplaum, ntses pulp, thiab lwm yam);Cov tshuaj hluavtaws yog carboxymethyl cellulose, sodium polyacrylate, thiab lwm yam. Nyob rau hauv tus txheej txheem ntawm fishery pub ntau lawm, kom muaj nuj nqis ntawm binder yog ntxiv los txhim kho stability ntawm pub nyob rau hauv dej.