Loading patent…
AssigneeFreund Industrial Co., Ltd.
InventorsNarimichi Takei, Takehiko Itou, Takashi Watanabe, Kazuomi Unosawa, Hiroyuku Ooishi
Estimating the term…
Under the granulating section 10a for performing fluidized-bed granulation coating of powder grains, a drying section 20a for drying powder grains granulated is provided. A drying section 30a for drying the powder grains that are not sufficiently dried is provided under the drying section 20a. A product discharging section 40a for discharging a dried product is provided under the drying section 30a. A fluidized-bed forming-gas is supplied downward to upward, and granulation and dryness are continuously performed by the fluidized-bed forming-gas, and the powder grains moved from the granulating section to the drying section located immediately thereunder are pneumatic classified.
A fluidized-bed granulation coating device comprising:
A fluidized-bed granulation coating method comprising the steps of:
Dependencies are inferred from the claim text.
Drawings are temporarily unavailable. Open the PDF at USPTO
From the US filing history. Foreign family members aren’t listed.
Backward citations are indexed for grants only.
Processes or devices for granulating materials , e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g.…
Processes or devices for granulating materials , e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g.…
The gas or vapour flowing through the materials or objects to be dried: so as to loosen them, e.g. to form a fluidised bed
Coating apparatus: fluidized bed
Term end not estimated
The present invention relates to a granulation coating technique for performing continuously a process such as granulation, coating, mixing, agitation, drying or the like of powder grains with the powder grains fluidized.
A fluidized-bed device can perform granulation coating and drying of pharmaceuticals, food or the like within a single device and has an airtight structure, so that it is a suitable device in view of GMP. Therefore, granulation substances obtained by using this have characteristics of comparatively porous and amorphous shapes and good solubility, and so are widely utilized.
While there are many kinds of fluidized-bed devices (for example, “Granulation Handbook”, edited by The Association of Powder Process Industry and Engineering, Japan, published from Ohmsha, pp.283-348), the devices are roughly divided into a batch type and a continuous type (including a semi-continuous type and a continuous type) as methods of operation.
FIG. 1 is a perspective view of a fluidized-bed granulation coating device that is an embodiment of the present invention.
FIG. 2 is a cross-sectional view of the fluidized-bed granulation coating device.
FIG. 3A is a cross-sectional view showing a modified example of a partition means.
(Embodiment 1)
An embodiment of the present invention will be described below and in detail with reference to the drawings. FIG. 1 is a perspective view showing a fluidized-bed granulation coating device according to the present invention. FIG. 2 is a cross-sectional view of the fluidized-bed granulation coating device shown in FIG. 1.
A fluidized-bed granulation coating device, as shown in FIG. 1, comprises a main body A constituted by a large-diameter cylinder portion B and a small-diameter cylinder portion C, which are formed in a straightly cylindrical shape. The main body A is formed in a substantially vertical cylindrical shape, i.e., as a straightly cylindrical type. The cylindrical interior of the main body A is sequentially partitioned and divided vertically into a plurality of sections 10, 20, 30 and 40 by using partition means 11, 21 and 31.