Emulsion Stability Challenges thiab Txoj Cai ntawm High-Shear Technology
Mayonnaise thiab zaub xam lav hnav khaub ncaws yog cov roj-hauv-dej emulsion tshuab. Mayonnaise tuaj yeem muaj txog li 80% roj, ua rau nws muaj roj-hauv-dej emulsion qhov twg cov roj yog cov theem dispersed thiab dej yog qhov txuas mus ntxiv. Nyob rau hauv xws li high-roj systems, ua tau raws li uniform dispersion ntawm cov roj theem mus rau hauv cov dej theem thiab tswj kev ruaj ntseg mus sij hawm ntev yog qhov tseem ceeb ntawm cov txheej txheem ntau lawm.
Cov txheej txheem kev sib xyaw ua ke feem ntau tsis ua kom txaus shear quab yuam kom tawg cov roj tee mus rau qhov loj me me. Cov kev tshawb fawb pom tau hais tias nyob rau hauv mayonnaise ntau lawm, cov khoom raw yog thawj premixed nyob rau hauv ib tug loj-ntim mixing tank ntawm nruab nrab ceev; Qhov tshwm sim ua ntej emulsion tom qab ntawd yuav tsum tau ua tiav los ntawm cov cuab yeej siv high-shear, qhov twg cov roj tee yog ntxiv txo mus rau lawv qhov kawg particle loj tis. Cov kauj ruam kawg no yog qhov tseem ceeb rau cov khoom tsim, kev ruaj ntseg ntev, qhov ncauj qhov ntswg, thiab xim.
High-shear stainless hlau sib xyaw tso tsheb hlau luam yog tsim los ua kom meej meej los daws cov txheej txheem mob no. Lawv lub hauv paus ntsiab lus ua haujlwm yog txhawm rau muab lub zog siv zog rau cov khoom siv los ntawm kev kub ceev tig homogeniser taub hau. Cov khoom siv dhau los ntawm qhov sib txawv ntawm qhov nqaim ntawm stator thiab rotor, qhov twg nws dhau ntau pua txhiab tus shear ua ib feeb, thaum tib lub sijhawm raug centrifugal quab yuam, compression, cuam tshuam, thiab tearing. Qhov no high-siv shear sai sai thiab uniformly disperses cov roj theem mus rau hauv lub tas mus li theem, tsim ib tug ruaj khov roj-hauv-dej los yog dej-hauv-roj emulsion, thaum kawg yielding ib npuas-dawb, nplua-textured, high-zoo khoom.
Niaj hnub nimno high-shear mixing tanks feem ntau nruab nrog lub tshuab nqus tsev emulsifying. Lub tshuab nqus tsev ib puag ncig zoo txo cov cua nkag thaum sib xyaw, txo qis oxidation kev pheej hmoo, thiab txuas ntxiv cov khoom txee lub neej. Lub caij no, lub tank yog ua los ntawm cov zaub mov-qib stainless hlau (304 lossis 316L), thiab sab hauv yog iav-polished los xyuas kom meej cov khoom tu cev.
Nyob rau hauv cov nqe lus ntawm cov khoom configuration, ib tug raug high-shear mixing system feem ntau suav nrog ntau yam agitators ua hauj lwm ua ke. Piv txwv li, 500-litre siab / lub tshuab nqus tsev sib xyaw tank tuaj yeem nruab nrog lub thauj tog rau nkoj stirrer, lub hauv qab helical impeller, thiab ntau cov hniav hauv-kab siab shear tov khoom, nrog rau cov cua sov / cua txias, lub tshuab thauj khoom, thiab lub twj tso kua mis tawm. Qhov kev ntxhov siab ntau qib no ua kom cov khoom siv tau zoo hauv txhua qhov chaw ntawm lub tank, tshem tawm cov zon tuag.
