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Application area Engineering case Industry information Membrane separation technology
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Application
在對(duì)鋁制品的熱處理工程中,淬火工藝通常需要使用淬火劑 ( 如聚堿乙二醇溶液)在對(duì)淬火完畢的鋁制品進(jìn)行沖洗的過(guò)程中通常會(huì)將淬火劑稀釋,因此必須進(jìn)行頻繁的淬火劑濃縮。常規(guī)濃縮方法是加熱法,通過(guò)加熱將淬 火劑從稀溶液中蒸發(fā)出來(lái),但是這種方法的缺點(diǎn)是:耗能高而且還會(huì)導(dǎo)致淬火劑損失。
現(xiàn)在一些鋁制品加工廠已經(jīng)開(kāi)始應(yīng)用 超濾膜對(duì)淬火劑進(jìn)行濃縮。通過(guò)采用超濾膜系統(tǒng),減少 了能量的消耗和淬火劑的損失。從而大大降低了廠家的生產(chǎn)成本。
現(xiàn)場(chǎng)數(shù)據(jù);現(xiàn)有一套 超濾淬火劑回收系統(tǒng)的各種運(yùn)行參數(shù)如下;操作壓力為 13.79-20.68Kg/cm2 ;滲 透通量為 10gfd;淬火劑 ( 聚堿乙二醇 ) 溶液的進(jìn)料濃度為 20%。
下面所列為此套超濾淬火劑回收系統(tǒng)和傳統(tǒng)的熱蒸發(fā)回收系統(tǒng)的運(yùn)行成本比較。成本計(jì)算是建立從 20%的淬火 劑溶液中去除 1000 加侖水的基礎(chǔ)上。
運(yùn)行成本比較
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