，是利用(yong)(yong)升華(hua)原理對各(ge)種物料樣品進行穩定化干燥的設備。廣泛應(ying)用(yong)(yong)于生物醫藥凍(dong)干、中藥材凍(dong)干、食品凍(dong)干、酶制品凍(dong)干、菌種凍(dong)干等(deng)研發和加(jia)工使用(yong)(yong)。隨著(zhu)FD技術(shu)發展，凍(dong)干機在(zai)肉蓯(cong)蓉(rong)(rong)凍(dong)干加(jia)工得(de)到應(ying)用(yong)(yong)，在(zai)行業內俗(su)稱為肉蓯(cong)蓉(rong)(rong)凍(dong)干機，具有保存(cun)肉蓯(cong)蓉(rong)(rong)原有生物堿、蛋白質(zhi)、胱氨酸、胡蘿卜素和硅酸鹽礦產物等影響(xiang)成份未變，能在普通下保護較很(hen)長(chang)時間間隔的特征 資源優(you)勢。

肉(rou)蓯蓉(rong)凍(dong)干(gan)(gan)加工(gong)需要提前將物(wu)(wu)(wu)料進行(xing)挑選、清洗、切(qie)片、滅菌、瀝干(gan)(gan)等工(gong)藝流程(cheng)(cheng)(cheng)后，將含水(shui)(shui)的(de)(de)肉(rou)蓯蓉(rong)在(zai)(zai)TF凍(dong)干(gan)(gan)機(ji)進行(xing)低(di)溫(wen)冷凍(dong)結(jie)晶成(cheng)固(gu)態(tai)，再通過真空系統(tong)和(he)(he)循環系統(tong)進行(xing)一次干(gan)(gan)燥(zao)和(he)(he)解(jie)析干(gan)(gan)燥(zao)運行(xing)處(chu)理，使(shi)肉(rou)蓯蓉(rong)中固(gu)體(ti)冰(bing)在(zai)(zai)真空環境下(xia)，不(bu)經液態(tai)直(zhi)接升華成(cheng)氣(qi)體(ti)除去，留下(xia)海綿多孔(kong)狀含水(shui)(shui)在(zai)(zai)2~5%的(de)(de)凍(dong)干(gan)(gan)肉(rou)蓯蓉(rong)物(wu)(wu)(wu)料，肉(rou)蓯蓉(rong)整個(ge)凍(dong)干(gan)(gan)過程(cheng)(cheng)(cheng)通過電(dian)控PLC系統(tong)控制溫(wen)度、真空等運行(xing)及確定凍(dong)干(gan)(gan)結(jie)束。整個(ge)凍(dong)干(gan)(gan)處(chu)理過程(cheng)(cheng)(cheng)是在(zai)(zai)低(di)溫(wen)和(he)(he)高真空環境下(xia)運行(xing)，肉(rou)蓯蓉(rong)的(de)(de)營養(yang)成(cheng)分和(he)(he)微生物(wu)(wu)(wu)活性(xing)(xing)(xing)物(wu)(wu)(wu)質得到保護，酶的(de)(de)生長(chang)和(he)(he)氧化作用(yong)幾乎無(wu)法進行(xing)，肉(rou)蓯蓉(rong)物(wu)(wu)(wu)質中的(de)(de)揮發性(xing)(xing)(xing)成(cheng)分和(he)(he)受熱(re)變性(xing)(xing)(xing)的(de)(de)營養(yang)成(cheng)分和(he)(he)芳香成(cheng)分損失非(fei)常少，所以能能極大(da)限度地保持物(wu)(wu)(wu)質性(xing)(xing)(xing)狀，營養(yang)成(cheng)分和(he)(he)色、香、味、形等基本不(bu)變。

凍(dong)(dong)干(gan)(gan)機在肉蓯蓉凍(dong)(dong)干(gan)(gan)加工應用(yong)能(neng)保(bao)存(cun)原有(you)營養成分和顏(yan)色、體形等(deng)基本不(bu)變，復水(shui)性(xing)好，含水(shui)極少(shao)能(neng)在常(chang)溫下保(bao)存(cun)1~3年。解決(jue)肉蓯蓉藥性(xing)成分和營養成分保(bao)留，方便存(cun)儲、流通(tong)和使用(yong)等(deng)問(wen)題。目前廣(guang)泛應用(yong)于冬蟲夏草(cao)凍(dong)(dong)干(gan)(gan)、野生菌凍(dong)(dong)干(gan)(gan)、食(shi)用(yong)菌凍(dong)(dong)干(gan)(gan)、靈芝凍(dong)(dong)干(gan)(gan)、三七凍(dong)(dong)干(gan)(gan)、人參凍(dong)(dong)干(gan)(gan)等(deng)加工生產。