Particle size breakup apparatus having a rotor and a stator

Patent metadata

Field	Value
Publication number	US-9358509-B2
Application number	US-201113817628-A
Country	US
Kind code	B2
Filing date	Aug 19, 2011
Priority date	Aug 19, 2010
Publication date	Jun 7, 2016
Grant date	Jun 7, 2016

Abstract

A mixer of the rotor-stator type that includes a stator having a plurality of openings and a rotor disposed on the inner side of the stator and spaced by a predetermined gap away from the stator is described, wherein the mixer that is capable of improving the shearing stress applied upon the liquid being processed and provides the higher performance is proposed. The stator includes a plurality of stators each having a different circumferential diameter, and the rotor is disposed on the inner side of the plurality of stators and spaced by the predetermined gap away from the stators so that the stators and the rotor can be brought closer to or farther away from each other in the direction in which the rotary shaft of the rotor extends.

First claim

What is claimed is:

1. A mixer comprising a mixer unit that includes a stator having a plurality of openings and a rotor disposed on an inner side of the stator and spaced by a first gap away from the stator, wherein
said rotor has a rotary shaft and a plurality of agitating blades extending radially from a center of rotation of the rotor;
said stator includes a plurality of stator components each having a different peripheral diameter;
said rotor is disposed in such a manner that it is spaced by the first gap away from said plurality of stator components;
a second gap is formed between a wall surface on a radially outermost end of each of the agitating blades and an inner peripheral wall surface of the stator; and
said stator components and said rotor are configured such that the first gap between the stator components and the rotor can be changed while the rotor is being rotated so that the stator components and the rotor can be brought closer to or farther away from each other in the direction in which the rotary shaft of said rotor extends;
wherein the mixer is so designed by using Equation 1 below to estimate the running time of said mixer and the resulting liquid drop diameters of the fluid being processed that can be obtained during the mixer's running time that the liquid drop diameters of the fluid being processed can be obtained during the particular mixer running time when said mixer is used to subject the fluid being processed to the emulsification, dispersion, particle size breakup or any other mixing processing:

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Assignees

• Kamiya Tetsu
• Meiji Co Ltd

Inventors

• Kamiya Tetsu

Classifications

• B01F5/10

  Operations & Transport · mapped topic

• B01F7/164

  Operations & Transport · mapped topic

• B01F2215/0404

  theories or general explanations of phenomena associated with mixing or generalizations of a concept by comparison of equivalent methods · CPC title

• B01F7/00808

  Operations & Transport · mapped topic

• B01F7/00016 Primary

  Operations & Transport · mapped topic