Distributive ejection device for liquid material to be used in freeze-drying apparatus for foodstuffs and medicaments

摘要

This invention is concerned with a distributive ejection apparatus for liquid material in a freeze-drying apparatus for foodstuffs, medicaments, etc., wherein the liquid material adjusted from the starting material for foodstuffs, medicaments, etc. is caused to freeze onto the inner wall surface of the upright cylindrical tube, and the distributive ejection of the liquid material onto the tube at the time of its freeze-drying by sublimation of the moisture content in the material under the vacuum condition may be done in the state of supplying the liquid material over the entire surface of the inner wall surface of the tube with a substantially uniform thickness.;A cylindrical wall a protruding upwardly of the jacket 2 for circulation of heat medium, provided on the outer periphery of the tube 1, is disposed on the upper end side of the upright cylindrical tube equipped on a freeze-drying apparatus w, in the form of extending the peripheral wall of the tube 1; then, onto this inner wall surface of this cylindrical wall, the liquid material is ejected from the distributive ejection nozzles 70 equipped on the downstream side of the tube passageway 5 for feeding the liquid material is sputtered, and the thus ejected liquid material is rendered uniform in the circumferential direction on and along the inner wall surface of the cylindrical wall a, and, while it flows down, in this state, on the inner surface of the cylindrical wall a, it is made to flow onto the inner wall surface 1a of the tube 1 which constitutes the freezing surface of the liquid material.