Patent ID: 8016479
Filing Date: 2011-09-13
Classification: B01F

Abstract:
1. A dispersing apparatus, comprising a container having a cylindrically shaped cavity; a stirring member pivotally supported rotatably and coaxially with said cavity, and disposed inside said cavity; and a rotational driving unit that rotationally drives said stirring member in a predetermined direction, to thereby stir a material to be dispersed introduced into said cavity of said container, with said stirring member rotationally driven by said rotational driving unit; wherein said stirring member includes a column-shaped rotating shaft rotatably supported so as to be rotationally driven by said rotational driving unit, and a plurality of vanes provided at an even number of positions on an outer circumferential surface of said rotating shaft at regular intervals along a rotation direction; an odd-numbered one of said vanes counted along said rotation direction has an attack angle of a negative value and is located at a relatively lower position and an even-numbered one of said vanes has an attack angle of a positive value and is located at a relatively upper position, with an axial direction of said rotating shaft being taken as up-and-down direction; and −A/2≦B≦A/2 is satisfied, where A represents a vertical width of said vane and B represents a distance between an upper edge of said odd-numbered vane and a lower edge of said even-numbered vane.