초록 ▼

Continuous freeze drying apparatus composed of a vessel whose internal chamber houses a cooled revolving cylinder on which a nebulizer sprays the material to be freeze dried. A scraping blade, grazing the freezed material, removes it making it fall onto revolving holed planes heated by heating eleme

Continuous freeze drying apparatus composed of a vessel whose internal chamber houses a cooled revolving cylinder on which a nebulizer sprays the material to be freeze dried. A scraping blade, grazing the freezed material, removes it making it fall onto revolving holed planes heated by heating elements interposed between these revolving planes, in order to obtain a quick sublimation of the substance to be freeze dried.

대표청구항 ▼

A continous freeze drying apparatus comtaining: a sealed vessel, said vessel comprising walls; a controlled-pressure chamber contained inside said sealed vessel; two condensation elements, each one of said two condensation elements being connected to said sealed vessel at a corresponding one of said

A continous freeze drying apparatus comtaining: a sealed vessel, said vessel comprising walls; a controlled-pressure chamber contained inside said sealed vessel; two condensation elements, each one of said two condensation elements being connected to said sealed vessel at a corresponding one of said walls; a vacuum pump connected to said two condensation elements; two check valves connected to said two condensation elements, each one of said two check valves being interposed between said vessel and said two condensation elements; wherein said controlled-pressure chamber includes: a revolving cylinder refrigerated at controlled temperature, said revolving cylinder having a lateral surface; a scraping means, slightly spaced from said revolving cylinder and placed orthogonally to said lateral surface of said revolving cylinder; a nebulizing means to spray a product to be freeze dried onto said lateral surface of said revolving cylinder, from which a freezed product is removed by said scraping means; a plurality of overlapped revolving planes to collect and distribute a freezed material, each one of said plurality of revolving planes having a plurality of holes or gauged notches to make particles of a size less then the diameter of said holes or said notches, pass through them; a plurality of heating elements interposed between each one of said revolving planes for the sublimation of a material to be freeze dried; and wherein said continuous freeze drying apparatus further comprises a flow-regulating means and a removable means to collect a freeze dried material, both said flow-regulation means and said removable means being located below one of the walls of said sealed vessel.