PROBLEM TO BE SOLVED: To provide a device for washing rice which has a great washing performance by using microbubbles.SOLUTION: A conventional washing system by using pressurizing dissolving system microbubbles is not able to efficiently and effectively remove deposits such as rice bran due to low bubble potential and is not enough to remove deposits even a plurality of washings. The device for washing rice can drastically improve rice washing performance since microbubbles which has a large negative potential can be generated by using a device for generating microbubbles which is a self-suction and air/liquid shearing system, not a pressuring dissolving system, provided with a collision wall in a body pipe or provided with a slit on a body pipe wall. So the device for washing rice which has a curved surface such as approximately spherical surface is used. The rice is put in this vessel, a gentle water stream is generated along the curved surface of the vessel by the water stream from the device for generating microbubbles disposed at the bottom of the vessel, and rice deposits are separated by contacting microbubbles with the rices one by one for sucking and is removed by surfacing underwater.COPYRIGHT: (C)2012,JPO&INPIT【課題】マイクロバブルを用いた洗浄能力の大きな洗米装置を提供する。【解決手段】加圧溶解式マイクロバブルを用いた従来の洗浄方式は、気泡電位が低いために米ぬか等の付着物を効率的・効果的に除去することができず、複数回の洗浄でも付着物の除去が不十分である。本発明は、加圧溶解式ではなく、衝突壁を本体パイプ内に備えたものや本体パイプ壁にスリットを備えたもののような自吸式の気液せん断方式のマイクロバブル発生器を用いることにより、大きな負電位を有するマイクロバブルを発生できるので、米の洗浄能力を大幅に向上できる。さらに、略球面等の曲面を有する米の洗浄容器を用いる。米をこの容器に入れて、容器の底部に配置されたマイクロバブル発生器からの流水により容器の曲面に沿ってゆるやかな水の流れを生じさせ、米1粒1粒にマイクロバブルを接触させて米の付着物を吸着により引き離し、水中に浮上させ除去する。【選択図】図1
