Separation device and separation method

Patent metadata

Field	Value
Publication number	US-11618039-B2
Application number	US-202017034040-A
Country	US
Kind code	B2
Filing date	Sep 28, 2020
Priority date	Mar 30, 2018
Publication date	Apr 4, 2023
Grant date	Apr 4, 2023

Abstract

A separation device includes: a container that includes a storage portion for storing liquid containing magnetic particles; and a coil that separates the magnetic particles from the liquid by generating a magnetic field through application of current, causing a magnetic force to act on the magnetic particles in a state where the coil stops with respect to the storage portion, and causing the magnetic particles to move from the storage portion against gravity acting on the liquid containing the magnetic particles.

First claim

What is claimed is:

1. A separation device comprising:
a container that includes a storage portion for storing liquid containing magnetic particles;
a coil that separates the magnetic particles from the liquid by generating a magnetic field through application of current; causing a magnetic force to act on the magnetic particles in a state where the coil does not move relative to the storage portion, and causing the magnetic particles to move from the storage portion against gravity acting on the liquid containing the magnetic particles; and
a slope that has an upward inclination from the storage portion,
wherein the coil surrounds a periphery of the slope from an outer side and separates the magnetic particles from the liquid by causing the magnetic particles to move obliquely upward along the slope.

2. The separation device according to claim 1 ; further comprising:
a filter that includes openings through which magnetic particles that have been moved from the storage portion by the magnetic force are capable of passing.

3. The separation device according to claim 2 ,
wherein the slope has liquid repellency for repelling the liquid.

4. The separation device according to claim 2 ,
wherein the coil separates the magnetic particles from the liquid by increasing or reducing the magnetic force acting on the magnetic particles.

5. The separation device according to claim 1 ,
wherein the slope has liquid repellency for repelling the liquid.

6. The separation device according to claim 1 ,
wherein the container includes a particle storage portion that stores the magnetic particles separated from the liquid.

7. The separation device according to claim 6 ,
wherein the coil covers a periphery of the particle storage portion.

8. The separation device according to claim 7 , further comprising:
a sensor detecting that the magnetic particles are stored in the particle storage portion,
wherein the coil stops generating a magnetic field in a case where the sensor detects that the magnetic particles are stored in the particle storage portion.

9. The separation device according to claim 6 , further comprising:
a sensor detecting that the magnetic particles are stored in the particle storage portion,
wherein the coil stops generating a magnetic field in a case where the sensor detects that the magnetic particles are stored in the particle storage portion.

10. The separation device according to claim 1 ,
wherein the coil separates the magnetic particles from the liquid by increasing or reducing the magnetic force acting on the magnetic particles.

11. A separation device comprising:
a container that includes a storage portion for storing liquid containing magnetic particles; and
a coil that separates the magnetic particles from the liquid by generating a magnetic field through application of current, causing a magnetic force to act on the magnetic particles in a state where the coil does not move relative to the storage portion, and causing the magnetic particles to move from the storage portion against gravity acting on the liquid containing the magnetic particles,
wherein the container includes a particle storage portion that stores the magnetic particles separated from the liquid, and
wherein the coil surrounds a periphery particle storage portion from an outer side.

Assignees

• Fujifilm Corp

Inventors

• Usami Yoshihisa
• Ishii Yasuyuki
• Inoue Yuki
• Ouchi Aya

Classifications

• B03C1/30

  Combinations with other devices, not otherwise provided for · CPC title

• B03C1/0335

  using coils · CPC title

• B03C1/288 Primary

  disposed at the outer circumference of a recipient · CPC title

• B01D29/445

  Bar screens · CPC title

• B03C1/08 Primary

  with non-movable magnets · CPC title