Stirring-processing apparatus and processing method

Patent metadata

Field	Value
Publication number	US-9925503-B2
Application number	US-201214655291-A
Country	US
Kind code	B2
Filing date	Dec 25, 2012
Priority date	Dec 25, 2012
Publication date	Mar 27, 2018
Grant date	Mar 27, 2018

Abstract

A stirring-processing apparatus and a processing method are provided to realize excellent processing of a fluid regardless of the properties of the fluid. The stirring-processing apparatus is provided with the stirring blade and the stirring chamber provided with the screen, wherein the apparatus performs, under a state in which the stirring chamber is disposed in a fluid to be processed, a process of applying a shear force to the fluid by a relative rotation between the screen and the stirring blade. The stirring chamber is provided with the suction opening to suck the fluid from outside to inside and the ejecting opening to eject the fluid from inside to outside; these openings being disposed above and below. The suppressing body to control a flow of the fluid is disposed between the suction opening and the ejecting opening. The suppressing body is, for example, in the form of a cylinder, and is interposed between the suction flow and the ejecting flow, thereby suppressing interference between the two flows.

First claim

The invention claimed is:

1. A stirring-processing apparatus, comprising:
a stirring blade rotating at a high speed; and
a stirring chamber provided with a screen which is disposed such that the stirring blade is enclosed therein,
wherein the stirring-processing apparatus performs, under a state in which the stirring chamber is disposed in a fluid to be processed, a process of applying a shear force to the fluid by rotating at least any one of the screen and the stirring blade, thereby effecting a relative rotation between the screen and the stirring blade,
wherein the stirring chamber includes:
a plurality of suction openings defined by a plurality of circumferentially spaced apart connecting parts each extending in a direction of a rotation axis of the relative rotation, to suck the fluid from outside to inside;
a plurality of ejecting openings formed on the screen to eject the fluid from inside to outside by the relative rotation, the plurality of suction openings and the plurality of ejecting openings being disposed in different positions in the direction of the rotation axis of the relative rotation; and
an outer wall portion between the plurality of suction openings and the plurality of ejecting openings adjoining the plurality of circumferentially spaced apart connecting parts and the screen together,

wherein a suppressing body is disposed on an outside of the outer wall portion and the plurality of circumferentially spaced apart connecting parts of the stirring chamber to control a flow of the fluid between the plurality of suction openings and the plurality of ejecting openings, the suppressing body comprising:
a base end positioned on the stirring chamber at a point thereof between the plurality of suction openings and the plurality of ejecting openings, the base end having a first outer diameter; and
a front end extending from the base end radially outward and axially upward in the direction of the rotation axis of the relative rotation and away from the plurality of ejecting openings, the front end reaching or extending beyond upper ends of the plurality of circumferentially spaced apart connecting parts, and having a second outer diameter larger than the first outer diameter of the base end, the front end being radially spaced apart from the plurality of circumferential spaced apart connecting parts, and

wherein the suppressing body is interposed between a suction flow, which is a flow of the fluid from the outside into the plurality of suction openings, and an ejecting flow, which is a flow of the fluid ejected from the plurality of ejecting openings to the outside, thereby suppressing an interference between the suction flow and the ejecting flow as well as preventing disturbing the flow of the suction flow into the plurality of suction openings due to the ejecting flow.

2. The stirring-processing apparatus according to claim 1 , wherein the suppressing body has a front end side thereof projected toward the outside of the stirring chamber.

3. The stirring-processing apparatus according to claim 2 , wherein the suppressing body is continuous in a circumferential direction.

4. The stirring-processing apparatus according to claim 2 , wherein an introducing fin is arranged to introduce the fluid by rotation thereof, and wherein an edge of the front end of the suppressing body is located in a position more apart from the plurality of suction openings than an edge of the introducing fin located in the nearest position to the plurality of suction openings in the direction of the rotation axis of the relative rotation.

5. The stirring-processing apparatus according to claim 1 , wherein the suppressing body is continuous in a circumferential direction.

6. The stirring-processing apparatus according to claim 5 , wherein an introducing fin is arranged to introduce the fluid by rotation thereof, and wherein an edge of the front end of the suppressing body is located in a position more apart from the plurality of suction openings than an edge of the introducing fin located in the nearest position to the plurality of suction openings in the direction of the rotation axis of the relative rotation.

7. The stirring-processing apparatus according to claim 1 , wherein the suppressing body has a cylindrical form.

8. The stirring-processing apparatus according to claim 7 , wherein an introducing fin is arranged to introduce the fluid by rotation thereof, and wherein an edge of the front end of the suppressing body is located in a position more apart from the plurality of suction openings than an edge of the introducing fin located in the nearest position to the plurality of suction openings in the direction of the rotation axis of the relative rotation.

9. The stirring-processing apparatus according to claim 1 , wherein an introducing fin is arranged to introduce the fluid by rotation thereof, and wherein an edge of the front end of the suppressing body is located in a position more apart from the plurality of suction openings than an edge of the introducing fin located in the nearest position to the plurality of suction openings in the direction of the rotation axis of the relative rotation.

10. The stirring-processing apparatus according to claim 1 , further comprising an electric motor configured to drive the stirring blade to rotate via a first driving axis, and to drive the screen to rotate via a second drive axis, the first drive axis being positioned within the second drive axis, and being coaxial with the second drive axis, wherein the screen rotates in an opposite direction from a rotating direction of the stirring blade.

11. The stirring-processing apparatus according to claim 1 , further comprising an electric motor configured to drive the screen to rotate via a drive axis, wherein the screen is rotatable with respect to the suppressing body.

12. The stirring-processing apparatus according to claim 1 , wherein the second outer diameter of the front end is larger than an outer diameter of the outer wall portion of the stirring chamber.

13. The stirring-processing apparatus according to claim 1 , further comprising an electric motor configured to drive the stirring blade to rotate via a first driving axis, and to drive the screen to rotate via a second drive axis, the first drive axis being positioned within the second drive axis, and being coaxial with the second drive axis, wherein:
the screen forms a part of an outer wall of the stirring chamber, the base end of the suppressing body is fixed to the outer wall of the stirring chamber at a position between the plurality of suction openings and the plurality of ejecting openings,
the stirring-processing apparatus further comprises an auxiliary blade installed outside the suppressing body,
the screen and the stirring blade rotate in opposite direction each other, thereby effecting a relative rotation between the screen and the stirring blade, and
the suppressing body rotates together with the screen, and the auxiliary blade rotates together with the suppressing body.

14. A stirring-processing method, comprising the steps of:
stirring a fluid by using a stirring apparatus provided with a stirring chamber and a stirring blade disposed in the stirring chamber, the stirring chamber being provided with a screen, at least any one of the screen and the stirring blade being rotated thereby effecting a relative rotation between the screen and the stirring chamber, the stirring chamber including:
a plurality of suction openings defined by a plurality of circumferentially spaced apart connecting parts each extending in a direction of a rotation axis of the relative rotation, to suck the flui

Assignees

• M Technique Co Ltd

Inventors

• Enomura Masakazu

Classifications

• B01F7/0085

  Operations & Transport · mapped topic

• B01F3/0807

  Operations & Transport · mapped topic

• B01F7/1635

  Operations & Transport · mapped topic

• B01F7/166

  Operations & Transport · mapped topic

• B01F5/0661 Primary

  Operations & Transport · mapped topic