Muaj qhov sib txawv tseem ceeb ntawm cov shear siab thiab qis shear mixers nyob rau hauv ntau yam, uas yog feem ntau xav txog nyob rau hauv nws txoj cai, daim ntawv thov scenarios, nws cov nyhuv thiab cov yam ntxwv ntawm cov khoom.
1. Kev sib xyaw ua ke
High shear tov khoom: siv high-speed rotating hniav los tsim high-siv shear, torque thiab extrusion rog kom sai disperse, emulsify thiab sib tov cov ntaub ntawv. Thaum lub sij hawm sib tov, cov ntaub ntawv ua kua los yog ib nrab ntawm cov kua yog rub thiab quab yuam los ntawm cov hniav, ua rau muaj kev kub ntxhov thiab eddies, yog li ua kom muaj txiaj ntsig zoo sib xyaw.
Tsawg shear tov khoom: Nws ua tiav cov dej ntws zoo sib xws thiab qis me me los ntawm kev sib xyaw ua kom zoo, xws li kev tsim cov hniav zoo nkauj (xws li gradient dav, torsion, arc, thiab lwm yam). Nws cov hniav profile feem ntau tuaj yeem tsim qhov yuav luag tsis sib xws thiab txo qhov kev puas tsuaj rau cov khoom siv, uas tsim nyog rau kev thov cov xwm txheej uas yuav tsum tau zam ntau dhau shearing.
2. Daim ntawv thov scenarios
High shear tov khoom: dav siv nyob rau hauv cov txheej txheem uas yuav tsum tau muaj kev sib tov, dispersion thiab emulsification, xws li emulsification, mixing, thickening thiab lwm yam txheej txheem nyob rau hauv cov zaub mov tsim, npaj cov ntaub ntawv xws li emulsions, cream, essences nyob rau hauv cov tshuaj pleev ib ce, thiab kev npaj tshuaj xws li raws li cov kua hauv qhov ncauj, emulsions, txhaj tshuaj thiab lwm yam tshuaj hauv kev tsim tshuaj. Cov txheej txheem no feem ntau xav kom cov ntaub ntawv sib xyaw ua ke hauv lub sijhawm luv luv thiab muaj cov kev xav tau siab rau kev sib xyaw ua ke.
Tsawg shear tov khoom: tsim nyog rau kev sib xyaw cov kua miscible thiab yaj cov khib nyiab uas tsis yooj yim rau agglomerate, thiab daim ntawv thov scenarios uas yuav tsum tau shearing ntau dhau los kom tsis txhob muaj cov khoom puas los yog denaturation. Piv txwv li, hauv kev lag luam xws li zaub mov thiab dej haus, tshuaj, tshuaj pleev ib ce, tshuaj / txheej thiab kev kho dej khib nyiab, cov khoom siv qis qis tuaj yeem tiv thaiv sedimentation, tswj cov cua kub tawm thiab ntab ncig, yog li tswj kev ruaj ntseg thiab zoo ntawm cov ntaub ntawv.
3. Kev sib xyaw ua haujlwm
High shear tov khoom: tuaj yeem tawg sai sai, emulsify thiab sib tov cov ntaub ntawv los ua ib qho sib tov sib xyaw. Nws cov txiaj ntsig zoo sib xyaw pab txhim kho cov khoom zoo thiab kev ua haujlwm ntau lawm.
Tsawg shear tov khoom: them nyiaj ntau dua rau kev tswj hwm tus yam ntxwv qub thiab ruaj khov ntawm cov khoom, zam cov khoom puas los yog denaturation los ntawm ntau shearing. Nws cov nyhuv stirring yog me ntsis, tab sis nws muaj peev xwm xyuas kom meej tias cov ntaub ntawv nyob twj ywm tusyees faib thaum lub sij hawm sib tov.
4. Cov yam ntxwv ntawm cov khoom siv
High shear tov khoom: feem ntau muaj kev ceev dua thiab lub zog, thiab tuaj yeem tsim kom muaj zog shear force. Nws cov hniav tsim kuj yog qhov nyuaj dua kom tau raws li kev xav tau sib txawv.
Tsawg shear tov khoom: tsom ntau dua rau kev ua kom zoo ntawm cov hniav tsim thiab txo qis kev siv hluav taws xob. Nws cov hniav feem ntau yog ua los ntawm cov khoom siv hnyav, thiab yog nyias thiab sib zog kom txo tau lub zog noj thiab txhim kho kev sib xyaw ua haujlwm. Nyob rau tib lub sijhawm, qhov ceev ntawm lub tshuab shear tov yog qhov qis kom tsis txhob muaj zog shear ntau dhau.
