| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact natural falling type particle mixing device which enables a uniform mixing and a maintenance of a continuousness in the kinetic energy of particles discharged from a raw material supply hopper, and does not require a driving source. SOLUTION: The particle mixing device 1 comprises a plurality of raw material supply hoppers 10 provided with an opening for discharging a pooled object in the lower part and pooling the particles inside, an opening and closing means 30 in the lower opening of the raw material supply hopper, and a mixing hopper 20 slenderized downward and provided with a discharge spout 21 in the lower part, and has a constitution that plural kinds of particles supplied from each raw material supply hopper are mixed while being slid off on the peripheral wall 25a of the mixing hopper 20. In the device, the discharge spout is provided at a position eccentric from the center of the mixing hopper in a planar view, two parallel tangent lines mutually opposed of the discharge spout are drawn perpendicularly to a straight line connecting each center of the mixing hopper and the discharge spout, and each raw material supply hopper is arranged in a region having a larger area among two large and small regions zoned and sandwiched with the parallel tangent lines. COPYRIGHT: (C)2008,JPO&INPIT
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