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Membrane separation Continuous ion-exchange / Chromatographic separation Electrodialysis(ED)/ Bipolar membrane electrodialysis(BMED) Equipment accessories / consumables Customized engineering equipment
Application area Engineering case Industry information Membrane separation technology
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Application
脫脂奶粉的生產(chǎn)現(xiàn)在使用蒸發(fā)法。在生產(chǎn)冰淇淋,雪糕、酸奶等時,為調(diào)整固形物濃度,常添加脫脂奶粉。但在脫脂奶粉的生產(chǎn)過程中,蛋白質(zhì)的變質(zhì)是不可避免的。近年來,隨著消費(fèi)者對奶制品質(zhì)量、味覺要求的提高,生產(chǎn)廠家開始追求無蛋白質(zhì)變質(zhì)的牛奶濃縮法。膜分離的特征就是在低溫下操作,無相變,因而可在不使蛋白質(zhì)變質(zhì)的條件下實現(xiàn)牛奶濃縮。此外,牛奶極易腐敗,對處理過程的衛(wèi)生要求很高,如必須設(shè)有加熱殺菌,設(shè)備易于清洗,極力減少設(shè)備中料液的殘留死角等等。廈門福美科技開發(fā)的系列反滲透膜(具有90℃熱殺菌時的耐熱性能、專用的膜壓力容器可使膜組件內(nèi)不殘留料液,從而已經(jīng)成功地用于牛奶生產(chǎn)中。除原奶濃縮外,反滲透膜還用于相關(guān)的奶制品工業(yè),如脫脂奶濃縮,乳清預(yù)備濃縮,稀薄奶回收,還原奶精制等工藝。
一、工藝流程
圖1 牛奶濃縮流程
圖2 牛奶連續(xù)濃縮RO裝置流程
二、工藝優(yōu)勢
1、減少廢水污染
2、低溫運(yùn)行,避免產(chǎn)品的熱破壞,提高乳品的利用效率
3、無需使用添加劑,不污染乳品
4、乳品生產(chǎn)廢水的回收再利用
5、簡化生產(chǎn)工藝,降低能量消耗
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