Refining device

Patent metadata

Field	Value
Publication number	US-12508601-B2
Application number	US-202318353924-A
Country	US
Kind code	B2
Filing date	Jul 18, 2023
Priority date	Jul 20, 2022
Publication date	Dec 30, 2025
Grant date	Dec 30, 2025

Abstract

There is provided a refining device including: a casing; a rotor having a rotation shaft, a first rotor portion positioned on a charging port side, a second rotor portion positioned on a discharge port side, and a partition wall, and disposed on an inside of the casing; and a liner disposed on an inner surface of the casing along an outer periphery of the rotor, in which the first rotor portion has a plurality of first blades radially installed around the rotation shaft through a gap portion which is open on the charging port side and blocked by the partition wall, the second rotor portion has a plurality of second blades radially installed around the rotation shaft, and in a state where the rotor is rotating, the raw material charged from the charging port is refined when sequentially passing between the gap portion and the adjacent first blades and when sequentially passing between the first blade and the liner and between the second blade and the liner, and is discharged from the discharge port.

First claim

What is claimed is:

1 . A refining device comprising:
a casing having a charging port and a discharge port of a raw material; a rotor disposed inside the casing and having
a rotation shaft,
a first rotor portion positioned on the charging port side,
a second rotor portion positioned on the discharge port side, and
a partition wall that separates the first rotor portion and the second rotor portion; and
a liner disposed on an inner surface of the casing along an outer periphery of the rotor, wherein the first rotor portion has a plurality of first blades radially installed around the rotation shaft through a gap portion which is open on the charging port side and blocked by the partition wall, the second rotor portion has a plurality of second blades radially installed around the rotation shaft, and in a state where the rotor is rotating, the raw material charged from the charging port is refined when sequentially passing through the gap portion and between adjacent first blades among the plurality of first blades, and when sequentially passing between the liner and outer peripheral portions of the plurality of first blades and between the liner and outer peripheral portions of the plurality of second blades, and the raw material is discharged from the discharge port.

2 . The refining device according to claim 1 , further comprising:
a side plate that rotates together with the first rotor portion, the side plate having an introduction port for introducing the raw material into the gap portion near the rotation shaft, and the side plate being fixed to the plurality of first blades.

3 . The refining device according to claim 2 , further comprising:
a tubular guide member that guides the raw material charged from the charging port to the introduction port.

4 . The refining device according to claim 2 , wherein
the side plate is fixed to the rotation shaft through a support member.

5 . The refining device according to claim 1 , wherein
the partition wall has
an outer peripheral portion separated from the liner,
a first surface to which the plurality of first blades are fixed, and
a second surface to which the plurality of second blades are fixed, and the second surface is opposite to the first surface in a shaft direction of the rotation shaft.

6 . The refining device according to claim 1 , wherein
the plurality of first blades are arranged so as to overlap the plurality of second blades, respectively, as viewed from a shaft direction of the rotation shaft.

Assignees

• Seiko Epson Corp

Inventors

• Kojima Hideki
• Oana Sotaro

Classifications

• B02C2018/147

  of the plural stage type · CPC title

• B02C18/2225

  Feed means · CPC title

• B02C18/14

  within horizontal containers {(B02C18/062, B02C18/065 take precedence)} · CPC title

• D21D1/34

  Other mills or refiners · CPC title

• D21D1/30

  Disc mills · CPC title