Cov Txheej Txheem Tsim Khoom Margarine Tuam Tshoj Chaw Tsim Khoom

Yees duab tsim tawm:https://www.youtube.com/watch?v=Zar71w0TUzM 

Kev tsim cov margarine muaj ob ntu: kev npaj cov khoom siv raw thiab kev txias thiab kev ua kom yas. Cov khoom siv tseem ceeb suav nrog cov thoob dej npaj, lub twj tso kua mis HP, lub tshuab votator (scraped surface heat exchanger), lub tshuab pin rotor, lub tshuab tub yees, lub tshuab sau margarine thiab lwm yam.

Cov txheej txheem qub yog qhov sib xyaw ntawm cov roj theem thiab cov dej theem, qhov ntsuas thiab qhov sib xyaw emulsification ntawm cov roj theem thiab cov dej theem, yog li npaj cov khoom noj rau cov txheej txheem tom kawg. Cov txheej txheem kawg yog kev txias tas mus li plasticizing thiab cov khoom ntim.

Cov txheej txheem npaj cov khoom siv raw ntawm margarine tau qhia nyob rau hauv Daim Duab 1:

1. 1.Cov mis nyuj fermented

Qee cov mis margarine ntxiv mis nyuj, thiab mis nyuj tom qab cov kab mob lactic acid fermentation tuaj yeem tsim cov saj zoo sib xws ntawm cov tshuaj nplaum ntuj, yog li lub Hoobkas rau cov mis nyuj fermented thiab dej sib xyaw.

1. 2.Kev sib tov dej

Cov dej thiab cov tshuaj ntxiv uas yaj tau hauv cov mis ntawm margarine, xws li mis nyuj fermented, ntsev, preservatives, thiab lwm yam, raug ntxiv rau qhov sib tov dej thiab lub tank ntsuas hauv qhov sib piv uas tau teev tseg kom do thiab sib tov, kom cov khoom sib xyaw dej tau yaj rau hauv cov tshuaj sib xws.

1. 3.Kev sib tov roj theem

Cov roj nyoos ntawm cov lus qhia sib txawv yog thawj zaug sib xyaw rau hauv lub tank sib tov roj raws li qhov sib piv tau teev tseg, thiab tom qab ntawd cov roj-soluble additives, xws li emulsifier, antioxidant, roj-soluble pigment, roj-soluble cellulose, thiab lwm yam, raug ntxiv rau cov roj theem raws li qhov sib piv, sib xyaw nrog lub tank ntsuas, thiab do kom tsim cov roj theem sib xws.

1. 4.Cov emulsion

Lub hom phiaj emulsification ntawm margarine yog ua kom cov dej theem sib npaug thiab ruaj khov hauv cov roj theem, thiab qib kev sib kis ntawm cov dej theem muaj kev cuam tshuam loj rau qhov zoo ntawm cov khoom. Vim tias qhov saj ntawm margarine muaj feem cuam tshuam nrog qhov loj ntawm cov dej theem me me, kev nthuav dav ntawm cov kab mob me me yog ua tiav hauv cov dej theem, qhov loj ntawm cov kab mob dav dav yog 1-5 microns, yog li cov dej poob hauv 10-20 microns lossis me dua tuaj yeem txwv kev nthuav dav ntawm cov kab mob, yog li cov dej theem dispersion zoo dhau, cov dej theem me dhau yuav ua rau margarine poob qhov saj; Kev sib kis tsis txaus, dej theem me dhau, yuav ua rau margarine puas tsuaj metamorphism. Kev sib raug zoo ntawm qib kev sib kis ntawm cov dej theem hauv margarine thiab qhov xwm txheej ntawm cov khoom yog kwv yees li hauv qab no:

Nws tuaj yeem pom tias kev ua haujlwm emulsification yuav tsum ncav cuag qee qib ntawm cov kev xav tau dispersion.

Lub hom phiaj ntawm kev sib tov cov dej theem thiab cov roj theem sib cais thiab sib npaug nrog cov theem ua ntej yog kom ntseeg tau tias tag nrho cov emulsion sib xws tom qab emulsification thiab sib tov ntawm cov roj thiab dej ob theem. Kev sib tov emulsification yog, qhov teeb meem ua haujlwm yog 50-60 degrees, cov dej theem raug ntxiv rau cov roj theem ntsuas, hauv lub tshuab sib xyaw lossis lub twj tso kua mis sib xyaw, yog cov dej theem tag nrho hauv cov roj theem, tsim cov kua qaub. Tab sis hom kua qaub no tsis ruaj khov heev, kev sib tov yuav tshwm sim ntawm qhov chaw ua si roj thiab dej sib cais.

Tom qab cov emulsion sib xyaw raug xa tuaj, cov txheej txheem txias thiab plasticizing raug nqa tawm kom txog thaum cov khoom raug ntim.

Cov emulsion yuav tsum tau txias thiab plasticized kom tsim tau cov khoom margarine yooj ywm. Tam sim no, nws feem ntau siv cov khoom siv kaw tas mus li quench plasticizing, suav nrog votator lossis hu ua scraped surface heat exchanger (unit A), pin rotor tshuab lossis kneading tshuab (unit C) thiab so tube (unit B). Cov txheej txheem thev naus laus zis tau qhia hauv Daim Duab 2:

Cov khoom siv no muaj cov yam ntxwv hauv qab no:

1. Kev ua haujlwm tas mus li ntawm huab cua siab

Cov emulsion uas tau sib xyaw ua ntej lawm raug pub rau hauv lub tog raj kheej quench los ntawm lub twj tso kua siab rau lub votator. Kev siab siab tuaj yeem kov yeej kev tiv thaiv thoob plaws hauv chav tsev, ntxiv rau kev ua haujlwm siab tuaj yeem ua rau cov khoom nyias thiab du. Kev ua haujlwm kaw tuaj yeem tiv thaiv huab cua thiab huab cua vim quenching thiab condensation ntawm dej sib xyaw nrog cov emulsion, xyuas kom meej cov khoom noj khoom haus xav tau, txo qhov poob ntawm lub tub yees.

2. Kev ua kom txias thiab emulsification

Cov emulsion raug quenched nrog ammonia lossis Freon hauv lub votator kom txias cov emulsion sai sai, yog li ntawd cov khoom me me crystalline, feem ntau yog 1-5 microns, yog li ntawd cov saj yog qhov muag heev. Tsis tas li ntawd, lub scraper ntawm lub rotating ncej hauv lub votator yog txuas nrog phab ntsa sab hauv ntawm lub tog raj kheej, yog li lub scraper hauv kev ua haujlwm tsis tsuas yog tuaj yeem khawb cov crystallization adhering rau sab hauv phab ntsa, tab sis kuj ua rau cov emulsion dispersed kom tau raws li cov kev xav tau emulsification ntawm lub suab.

3. Kneading thiab dethickening (pin rotor tshuab)

Txawm hais tias cov emulsion txias los ntawm votator tau pib tsim cov crystallization, nws tseem yuav tsum loj hlob los ntawm ib lub sijhawm. Yog tias cov emulsion raug tso cai rau crystallize thaum so, lub network ntawm cov khoom siv lipid khov kho yuav tsim. Qhov tshwm sim yog tias cov emulsion txias yuav tsim ib pawg tawv heev uas tsis muaj plasticity. Yog li ntawd, txhawm rau kom tau txais cov khoom margarine nrog qee yam plasticity, cov qauv network yuav tsum tau tawg los ntawm kev siv tshuab ua ntej cov emulsion tsim cov qauv network tag nrho, kom ua tiav cov txiaj ntsig ntawm kev txo cov tuab. Kneading thiab de-thickening feem ntau yog ua nyob rau hauv lub tshuab pin rotor.

Chav A (votator) yog lub cuab yeej txias scraper. Cov emulsion raug tsav mus rau hauv chav kaw A (votator) los ntawm lub twj tso kua siab. Cov khoom siv hla dhau qhov channel ntawm lub tog raj kheej txias thiab lub ncej tig, thiab qhov kub ntawm cov khoom siv poob qis sai sai los ntawm kev tua cov khoom txias. Ob kab ntawm cov scrapers tau teeb tsa rau ntawm qhov chaw ntawm lub ncej. Cov siv lead ua rau sab hauv ntawm lub votator raug khawb tawm los ntawm lub scraper tig ceev ceev kom ib txwm pom qhov chaw txias tshiab thiab tswj kev hloov pauv cua sov zoo. Cov emulsion tuaj yeem tawg ua ke hauv qab kev ua ntawm scraper. Thaum cov khoom siv hla dhau chav A (votator), qhov kub poob rau 10-20 degrees, uas qis dua qhov melting point ntawm cov roj. Txawm hais tias cov roj pib crystallize, nws tseem tsis tau tsim lub xeev khov. Lub sijhawm no, cov emulsion nyob rau hauv lub xeev txias thiab nws yog cov kua tuab.

Lub axis tig ntawm chav tsev A (votator) yog hollow. Thaum lub sijhawm ua haujlwm, dej kub ntawm 50-60 degrees raug nchuav rau hauv nruab nrab ntawm lub axis tig kom tiv thaiv kev sib xyaw ua ke thiab kho rau ntawm lub axis thiab ua rau txhaws.

Chav C (lub tshuab rotor pin) yog lub cuab yeej sib tsoo thiab tshem cov tuab, raws li pom hauv daim duab saum toj no. Ob kab ntawm cov ntsia hlau tau teeb tsa rau ntawm lub ncej tig, thiab ib kab ntawm cov ntsia hlau ruaj khov tau teeb tsa rau ntawm phab ntsa sab hauv ntawm lub tog raj kheej, uas tau sib dhos nrog cov ntsia hlau ntawm lub ncej thiab tsis kov ib leeg. Thaum lub ncej tig ntawm qhov ceev ceev, cov ntsia hlau ntawm lub ncej hla qhov sib txawv ntawm cov ntsia hlau ruaj khov, thiab cov khoom siv tau sib tsoo tag nrho. Hauv qab qhov kev ua no, nws tuaj yeem txhawb kev loj hlob ntawm cov siv lead ua, rhuav tshem cov qauv siv lead ua, tsim cov siv lead ua tsis sib xws, txo qhov sib xws, thiab ua rau kom muaj kev yas ntau ntxiv.

Chav C (lub tshuab pin rotor) tsuas yog ua lub zog kneading rau hmo ntuj txias heev, yog li nws tsuas yog xav tau kev txuag cua sov thiab tsis xav tau txias. Thaum lub cua sov crystallization raug tso tawm (kwv yees li 50KCAL / KG), thiab lub cua sov tsim los ntawm kev sib txhuam kneading, qhov kub tso tawm ntawm chav C (pin rotor macjhine) siab dua li qhov kub pub. Lub sijhawm no, lub crystallization yog li 70% tiav, tab sis nws tseem mos. Cov khoom kawg raug tso tawm los ntawm lub qhov cua extrusion, thiab nws yuav tawv tom qab lub sijhawm.

Tom qab xa cov margarine los ntawm C unit (pin rotor machine), nws yuav tsum tau kho cua sov ntawm qee qhov kub. Feem ntau, cov khoom raug muab tso rau ntawm qhov kub ntawm 10 degrees qis dua qhov melting point rau ntau tshaj 48 teev. Kev kho no hu ua ripening. Cov khoom siav tuaj yeem xa ncaj qha mus rau lub Hoobkas ua zaub mov kom siv.