| 摘要 |
PROBLEM TO BE SOLVED: To efficiently and sufficiently attach an additive such as flavor to the surface of granules of dog food or the like without pulverizing granules. SOLUTION: A rotation drum is rotatably attached and a diaphragm 4 is provided in the interior. In the diaphragm 4, this side is inclined by 34 deg. in the right direction of the figure to a line A parallel to longitudinal direction of a rotation drum and inclined by 25 deg. to 45 deg. (average 35 deg.) to perpendicular line B drawn from the attaching part to the interior of the rotation drum to rotation shaft of the rotation drum. Therefore, granules or the like are successively moved to outlet side by rotation of the rotating drum and rubbed against each other and additive can strongly be attached to the surface in high yield in a short time. |
