Mixer-granulator drier
AssigneeNara Machinery Co., Ltd.
InventorsTatsuo Ohkoshi, Chikara Kobayashi
Life of this patent
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Abstract
A mixer-granulator drier comprises a mixer-granulator having main and auxiliary mixing-granulating blades mounted in a vessel forming the main body so that both the blades are revolved to accomplish mixing and granulation of powders as desired. The bottom plate of the vessel is formed with a number of slots, a valve mechanism for opening and closing the slots are located adjacent the slots, and a drying-air supply device is provided for supplying the vessel with drying air through the slots. This combination apparatus performs mixing, granulation, and drying of various drugs, foods, chemicals, etc., in a single vessel automatically and continuously. The apparatus is easy to disassemble for thorough cleaning and sterilization.
Claims5
A mixer-granulator drier, comprising:
- a vessel;
- a mixing-granulating mechanism mounted in said vessel and including main and auxiliary rotary mixing granulating blades which are caused to revolve so as to accomplish mixing and granulation of powders as desired;
- said main rotary mixing granulating blades being provided at a bottom of said vessel and said auxiliary rotary mixing granulating blades being provided at an internal lateral surface of said vessel just above a proximity of ends of said main rotary mixing granulating blades;
- a valve means for opening and closing a number of slots formed in a bottom plate of said vessel, said valve means including movable pieces adapted to open and close said slots, and means for raising and lowering said movable pieces so that said valve means may be closed during mixing-granulating;
- said valve means includes each of said slots having a constriction at a top thereof and movable pieces of contour adapted to fit fluid-tightly in respective constrictions of said slots;
- said means for raising and lowering said movable pieces includes a movable disk located opposite an under surface of said bottom plate, said movable disk carrying said movable pieces fixedly thereon, and further includes means for raising and lowering said movable disk;
- and
- means for supplying drying-air into said vessel through said slots when said valve means is open.
Dependencies are inferred from the claim text.