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1.发明公开VACUUM FREEZE DRYING APPARATUS AND FROZEN PARTICLE MANUFACTURING METHOD 审中-公开VERFAHREN ZUR HERSTELLUNG GEFRORENER PARTIKEL VAKUUM-GEFRIERTROCKNUNGSVORRICHTUNG
公开(公告)号：EP2633902A1
公开(公告)日：2013-09-04
申请号：EP11836215.1
申请日：2011-10-24
申请人： Ulvac, Inc.
摘要： A technology for protecting a valve seat inside a collection tank from the adherence of frozen particles in a vacuum freeze-drying apparatus and a frozen particle manufacturing method. The inside of a vacuum tank 11 and a collection tank 12 are vacuum evacuated, a raw material liquid is injected into the vacuum tank 11 to produce frozen particles, and the frozen particles are piled up on a surface of a heating/cooling shelf 17. After a first opening 22 of a main pipe 21 which is exposed inside the collection tank 12 is opened, an auxiliary pipe 31 inserted into the main pipe 21 is moved to a position where the bottom end of the auxiliary pipe 31 protrudes to the outside of the main pipe 21 through the first opening 22. When the frozen particles on the heating/cooling shelf 17 are transferred into the collection tank 12 through the inside of the auxiliary pipe 31, the frozen particles do not adhere to a valve seat 23 which surrounds the first opening 22. Next, the auxiliary pipe 31 is moved to a position where the bottom end enters the inside of the main pipe 21 through the first opening 22; the first opening 22 is blocked, and the frozen particles are carried out from the inside of the collection tank 12.
摘要翻译： 用于保护收集罐内的阀座免受真空冷冻干燥装置中的冷冻颗粒粘附和冷冻颗粒制造方法的技术。 真空槽11和收集槽12的内部被真空抽真空，原料液被注入真空槽11中以产生冷冻颗粒，并将冷冻颗粒堆积在加热/制冷架17的表面上。 在收集箱12内露出的主管21的第一开口22打开后，插入到主管21中的辅助管31移动到辅管31的底端突出到 主管21通过第一开口22.当加热/冷却搁架17上的冷冻颗粒通过辅助管31的内部被转移到收集箱12中时，冷冻颗粒不会粘附到围绕 第一开口22.接下来，辅助管31移动到底端通过第一开口22进入主管21的内部的位置; 第一开口22被封闭，并且冷冻颗粒从收集罐12的内部进行。
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