Acoustic particle separation
    10.
    发明授权
    Acoustic particle separation 失效
    声粒分离

    公开(公告)号:US4523682A

    公开(公告)日:1985-06-18

    申请号:US379601

    申请日:1982-05-19

    CPC分类号: B01D21/283 B03B5/00 B07B13/00

    摘要: A method is described which uses acoustic energy to separate particles of different sizes, densities, or the like. The method includes applying acoustic energy resonant to a chamber (14) containing a liquid or gaseous medium to set up a standing wave pattern that includes a force potential well wherein particles within the well are urged towards the center, or position of minimum force potential. A group of particles to be separated is placed in the chamber, while a non-acoustic force such as gravity is applied, so that the particles (50-52 in FIG.2) separate with the larger or denser particles moving away from the center of the well to a position near its edge and progressively smaller lighter particles moving progressively closer to the center of the well. Particles are removed from different positions within the well, so that particles are separated according to the positions they occupy in the well.

    摘要翻译: 描述了一种使用声能分离不同尺寸,密度等的颗粒的方法。 该方法包括将声能共振应用于包含液体或气体介质的室(14),以建立驻波模式,其包括力势井,其中井内的颗粒被推向中心或最小力电位的位置。 一组要分离的颗粒被放置在室中,同时施加诸如重力的非声力,使得颗粒(图2中的50-52)与较大或更致密的颗粒离开中心分离 的井到靠近其边缘的位置,逐渐变小的较轻的颗粒逐渐靠近井的中心移动。 颗粒从孔内的不同位置移除,使得颗粒根据它们在井中占据的位置分离。