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    • 6. 发明申请
    • FRUIT/VEGETABLE FLOATATION GRADING
    • 水果/蔬菜水果分级
    • WO1994002250A1
    • 1994-02-03
    • PCT/US1993007006
    • 1993-07-27
    • MEYLOR, Donald, M.FINN, Patrick, J.
    • B03B05/28
    • B07B13/08B03B5/28B03D1/00
    • A floatation separation apparatus is described for separating pieces of fruit or vegetable of the same type, but wherein desirable pieces have a slightly different specific gravity from the undesirable ones, and all have a specific gravity about the same as that of water. The pieces (12) are placed near the surface of a body of water, and a cloud (40) of tiny air bubbles is maintained in the water. As the bubbles float to the surface they encounter the articles and slightly increase their buoyancy. The increase in buoyancy is slight and uniform, so those articles having a density slightly greater than that of the water will remain at the water surface, while those of a slightly greater density cannot be floated by the air bubbles and will sink to the bottom. The cloud of air bubbles is created by allowing air at about atmospheric pressure, to emerge from apertures in a rapidly spining rotor that open in a direction primarily opposite to the spin direction.
    • 描述了用于分离相同类型的水果或蔬菜片的浮选分离装置,但是其中期望的片材与不期望的片材具有稍微不同的比重,并且都具有与水相同的比重。 将片(12)放置在水体表面附近,并且在水中保持微小气泡的云(40)。 当气泡漂浮到表面时,它们遇到物品并略微增加浮力。 浮力的增加是轻微和均匀的,因此具有稍高于水的密度的制品将保留在水面上,而稍微更大的密度的那些制品不能被气泡漂浮并且将沉入底部。 通过允许大气压下的空气从在与旋转方向相反的方向开口的快速旋转的转子中的孔中产生气泡。