Algae separating device and method for producing dry algae

Patent metadata

Field	Value
Publication number	US-2018072984-A1
Application number	US-201715816039-A
Country	US
Kind code	A1
Filing date	Nov 17, 2017
Priority date	May 20, 2015
Publication date	Mar 15, 2018
Grant date	—

Abstract

The present disclosure is an algae separating device configured to separate algae from an algal solution in which algae are suspended. The algae separating device includes: a metal screen having a main body and a plurality of through holes passing through the main body from a front face to a back face; and a spraying device configured to spray the algal solution toward the front face of the main body.

First claim

What is claimed is:

1 . An algae separating device configured to separate algae from an algal solution in which algae are suspended, the algae separating device comprising:
a metal screen including a main body and a plurality of through holes passing through the main body from a front face to a back face; and a spraying device configured to spray the algal solution toward the front face of the main body.

2 . The algae separating device according to claim 1 , wherein the spraying device sprays the algal solution in a direction which is perpendicular to a plane direction of at least part of the front face of the main body.

3 . The algae separating device according to claim 1 , wherein the spraying device sprays the algal solution in a direction intersecting a plane direction of at least part of the front face of the main body.

4 . The algae separating device according to claim 3 , wherein the spraying device sprays the algal solution in a direction from one end side of the main body toward the other end side thereof.

5 . The algae separating device according to claim 4 , wherein the one end side of the main body of the screen is arranged vertically above the other end side thereof.

6 . The algae separating device according to claim 1 , wherein the main body has a curved shape in which the front face side thereof is concave.

7 . The algae separating device according to claim 1 , wherein the main body has the front face arranged to face upward in a vertical direction and a convex section protruding from at least a part of the front face upward in the vertical direction, and
the spraying device sprays the algal solution to the convex section.

8 . The algae separating device according to claim 1 , wherein each of the through holes is a slit having a width less than a particle size of the algae.

9 . The algae separating device according to claim 1 , further comprising:
a drying device configured to dry the algal solution, from which part of a liquid is removed using the screen, using one or more of natural drying, air drying, and waste heat.

10 . The algae separating device according to claim 1 , wherein the algae are Botryococcus Braunii.

11 . A method for producing dry algae which separates algae from an algal solution in which algae are suspended and produces the dry algae, the method for producing the dry algae comprising:
a step of spraying the algal solution toward a front face of a main body of a metal screen having the main body and a plurality of through holes passing through the main body from the front face to a back face.

12 . The method for producing the dry algae according to claim 11 , further comprising:
a step of drying the algal solution, from which part of a liquid is removed, obtained by performing the step of spraying the algal solution using one or more of natural drying, air drying, and waste heat.

Assignees

• Ihi Corp

Inventors

• Tanaka Hiroshi
• Muto Jun
• Matsuzawa Yoshiaki
• Kaneko Norimitsu
• Yoshida Yuko

Classifications

• C12N1/02

  Separating microorganisms from their culture media · CPC title

• C12N1/12 Primary

  Unicellular algae; Culture media therefor (as new plants A01H13/00) · CPC title

• B01D29/014

  with curved filtering elements (construction B01D29/035, B01D29/071) · CPC title

• B01D29/908

  provoking a tangential stream · CPC title

• B01D39/10

  Filter screens essentially made of metal · CPC title