High-power ultrasonic sonochemical khoom
Qhov tseem ceeb tshaj plaws thiab dav paub cov nyhuv ntawm lub hwj chim ultrasound hauv cov kua yog cov nyhuv dispersion. Lub dispersion ntawm ultrasonic tsis nyob rau hauv cov kua tsuas yog nyob ntawm lub ultrasonic cavitation ntawm cov kua.
Ultrasonic dispersion tsis xav tau kev siv emulsifiers. Feem ntau, ultrasonic emulsification tuaj yeem tau txais cov khoom hauv qab 1 μm. Qhov tsim ntawm no emulsion feem ntau yog tshwm sim los ntawm qhov muaj zog cavitation ntawm ultrasonic tsis nyob ze ntawm cov cuab yeej dispersion. Paraffin wax tuaj yeem tawg hauv dej nrog tshuaj lom neeg, thiab txoj kab uas hla ntawm cov khoom tawg yog tsawg dua 1 μm.
Lub tuav taw tes ntawm ultrasonic dispersion feem ntau yog me me vibration thiab acceleration siab. Ultrasonic dispersion li tau siv dav hauv cov khoom noj, roj, cov ntaub ntawv tshiab, tshuaj, txheej thiab lwm yam.
Decentralization txoj cai
1. Ultrasonic generator: nws efficiency siab li 90 feem pua, thiab nws yog me me thiab lub teeb nyob rau hauv hnyav; (tseem hu ua ultrasonic tsav fais fab mov).
2. Ultrasonic aiding system, txhawm rau kom tau txais lub zog siab, nws cov resonant vibration zaus yog xaiv ntawm txog 15kHz, lub tshuab hluav taws xob ultrasonic thiab cov resonance system tsim ib zaus tsis siv neeg mus txog qhovtwg; (ultrasonic vibrator muaj li ntawm ultrasonic transducer thiab ultrasonic horn).
3. Ultrasonic dispersing cuab tam; (lub taub hau lub cuab yeej ultrasonic txuas nrog lub vibrator).
4. Dispersion ntim. Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm homogenizer yog tias thaum lub tshuab hluav taws xob ultrasonic tso tawm lub zog hluav taws xob siab kom kov lub ultrasonic actuator, tom qab ua kom nrov los ntawm lub vibrator thiab lub tshuab vibrating cap, nyob rau hauv qhov kev txiav txim ntawm cov cuab yeej dispersing, muaj zog sib txawv kev kho mob yog nqa. tawm hauv lub thawv.
Kev cuam tshuam
Ob yam txiav txim siab qhov cuam tshuam ntawm kev tawg: ultrasonic cuam tshuam quab yuam; ultrasonic hluav taws xob lub sijhawm.
Lub outflow ntawm cov kua kho yog Q, qhov sib txawv yog c, thiab thaj tsam ntawm lub phaj nyob rau hauv lub opposite kev taw qhia yog S, ces qhov nruab nrab lub sij hawm t yuav tsum tau tshwj xeeb hais nyob rau hauv cov kev kho mob kua kom dhau los ntawm qhov chaw no yog: t {{ 0}}c*S/Q. Txhawm rau txhim kho cov nyhuv ultrasonic dispersion, peb lub ntsiab lus yuav tsum tau tswj: qhov nruab nrab siab p ntawm cov kua kho mob, qhov sib txawv c thiab lub sij hawm hluav taws xob ultrasonic t(s).
Kev siv ntau yam
Ultrasonic dispersion yog dav siv nyob rau hauv ntau lub teb: xws li khoom noj khoom haus, tshuaj pleev ib ce, tshuaj, chemistry, thiab lwm yam. Daim ntawv thov ntawm ultrasound nyob rau hauv cov zaub mov dispersion yuav roughly muab faib ua peb lub sij hawm: kua-kua dispersion (emulsion), solid-kua dispersion (raug ncua kev kawm ntawv). ), thiab gas-kua dispersion.
Solid-kua dispersion (kev ncua): xws li dispersion ntawm hmoov emulsion, thiab lwm yam.
Gas-kua dispersion: Piv txwv li, kev tsim cov dej haus carbonated tuaj yeem txhim kho los ntawm txoj kev nqus CO2, kom qhov ruaj khov tuaj yeem txhim kho.
Liquid-kua dispersion (emulsion): xws li emulsifying ghee ua lactose; thaum ua ntses, dispersing raw khoom, thiab lwm yam.
Ultrasonic dispersion kuj siv tau rau kev npaj ntawm nanomaterials; rau kev tshawb nrhiav thiab kev soj ntsuam cov qauv zaub mov, xws li ultrasonic dispersion kua theem microextraction tshuab
