When starch and protein are separated, the dish type nozzle separator and dish tableware are separated into one of the difficult separation materials (suspension composed of viscous liquid and fine solid particles or emulsion composed of liquid with similar density) of the sedimentation centrifuge In order to achieve the purpose of stratification or solid particle settlement in liquid, the state of warp, liquid and solid with different density is not fused with each other, and the principle of different settlement velocity is obtained by using centrifugal force field.