Dispersion device and accumulation device

Patent metadata

Field	Value
Publication number	US-12416109-B2
Application number	US-202318395791-A
Country	US
Kind code	B2
Filing date	Dec 26, 2023
Priority date	Dec 27, 2022
Publication date	Sep 16, 2025
Grant date	Sep 16, 2025

Abstract

There is provided a dispersion device including: a supply section having a supply pipe for supplying a material containing fibers together with air, and a chamber that has a first swirl flow forming portion forming a first swirl flow of the air containing the material and a second swirl flow forming portion communicating with the first swirl flow forming portion and forming a second swirl flow in a direction opposite to the first swirl flow of the air containing the material and that is coupled to the supply pipe; a dispersion section that has a casing formed with a discharge port for discharging the material, stirs the material in the casing, and discharges and disperses the material from the discharge port into air; and a coupling section having a communication port through which the first swirl flow forming portion and the second swirl flow forming portion communicate with the casing.

First claim

What is claimed is:

1. A dispersion device comprising:
a supply section having a supply pipe for supplying a material containing fibers together with air, and a chamber that has a first swirl flow forming portion forming a first swirl flow of the air containing the material and a second swirl flow forming portion communicating with the first swirl flow forming portion and forming a second swirl flow in a direction opposite to the first swirl flow of the air containing the material and that is coupled to the supply pipe;
a dispersion section that has a casing formed with a discharge port for discharging the material, stirs the material in the casing, and discharges and disperses the material from the discharge port into air; and
a coupling section having a communication port through which the first swirl flow forming portion and the second swirl flow forming portion communicate with the casing.

2. The dispersion device according to claim 1 , wherein
the dispersion section has a stirring member installed in the casing and rotating around a rotation axis.

3. The dispersion device according to claim 2 , wherein
the communication port has an elongated shape extending in a first direction parallel to the rotation axis.

4. The dispersion device according to claim 2 , wherein
the first swirl flow forming portion and the second swirl flow forming portion are disposed side by side in a first direction parallel to the rotation axis.

5. The dispersion device according to claim 1 , wherein
an inner peripheral surface of the first swirl flow forming portion is a curved first curved surface, and an inner peripheral surface of the second swirl flow forming portion is a curved second curved surface.

6. The dispersion device according to claim 5 , wherein
the first curved surface and the second curved surface have a shape symmetrical with respect to a boundary portion between the first swirl flow forming portion and the second swirl flow forming portion.

7. The dispersion device according to claim 1 , wherein
an end part, which is a downstream part, of the supply pipe is coupled to a boundary portion between the first swirl flow forming portion and the second swirl flow forming portion.

8. An accumulation device comprising:
a supply section having a supply pipe for supplying a material containing fibers together with air, and a chamber that has a first swirl flow forming portion forming a first swirl flow of the air containing the material and a second swirl flow forming portion communicating with the first swirl flow forming portion and forming a second swirl flow in a direction opposite to the first swirl flow of the air containing the material and that is coupled to the supply pipe;
a dispersion section that has a casing formed with a discharge port for discharging the material, stirs the material in the casing, and discharges and disperses the material from the discharge port into air;
a coupling section having a communication port through which the first swirl flow forming portion and the second swirl flow forming portion communicate with the casing; and
an accumulation section accumulating the material dispersed by the dispersion section.

Assignees

• Seiko Epson Corp

Inventors

• Omagari Naoko
• Matsuda Kensaku
• Nishi Toshizo

Classifications

• B01F25/102

  wherein the vortex is created by two or more jets introduced tangentially in separate mixing chambers or consecutively in the same mixing chamber · CPC title

• B04C2003/003

  Shapes or dimensions of vortex chambers · CPC title

• D01D7/02

  in centrifugal spinning pots · CPC title

• D21B1/08 Primary

  the raw material being waste paper (chemical part D21C5/02); the raw material being rags · CPC title

• D21G9/0027

  controlling the forming section · CPC title