Fine particle separating apparatus

Patent metadata

Field	Value
Publication number	US-11872509-B2
Application number	US-201816651849-A
Country	US
Kind code	B2
Filing date	Sep 27, 2018
Priority date	Sep 29, 2017
Publication date	Jan 16, 2024
Grant date	Jan 16, 2024

Abstract

A fine particle separating apparatus includes a first filter having a first mesh, the first filter having a first section and a second section with the first mesh therebetween and rotatably mounted in the first filter part. A first flow path allows sludge to flow into the first filter, a second flow path allows an effluent from the first filter party to flow therein, and a third flow path is provided to discharge the effluent from the second flow path to the outside. At least a portion of the effluent flowing into the second flow path is provided to the first filter part in a fluid loop along a fourth flow path, and a fifth flow path is defined in the first section to allow the effluent from the fourth flow path to pass through the first filter part. A storage tank and a pump are also provided.

First claim

The invention claimed is:

1. A fine particle separating apparatus comprising:
a first filter comprising a first mesh configured to separate fine particles contained in sludge according to size, the first filter having a first region and a second region with the first mesh placed therebetween;
a first flow path mounted in the first region and configured to allow the sludge to flow therethrough into the first filter;
a second flow path mounted in the second region and configured to receive an effluent having passed through the first filter;
a third flow path connected to the second flow path and configured to discharge the effluent therethrough;
a fourth flow path connected to one side of the second flow path and mounted in the second region to allow at least a portion of the effluent flowing into the second flow path to flow therethrough into the first filter;
a fifth flow path mounted in the first region to receive the effluent discharged from the fourth flow path after the effluent passes through the first filter;
a reservoir receiving the effluent discharged from the fifth flow path; and
a first pump configured to create a flow of the effluent,
wherein the first mesh is rotatably mounted on the first filter, and
wherein the separating apparatus is constructed such that fine particles contained in the sludge flowing through the first flow path that fail to pass through the first mesh are forced to flow into the reservoir by hydraulic pressure of the effluent flowing into the first filter through the fourth flow path.

2. The fine particle separating apparatus according to claim 1 , wherein the first filter further comprises a blade assembly passing through at least a portion of the first mesh, wherein at least portion of the blade assembly is rotatably mounted on a surface of the first mesh.

3. The fine particle separating apparatus according to claim 2 , wherein the blade assembly comprises a blade and a cleaning brush attached to one side of the blade, the cleaning brush configured to rotate on a surface of the first mesh upon rotation of the blade.

4. The fine particle separating apparatus according to claim 1 , further comprising:
a first flow path connection in the first region of the first filter having a first area and being configured to be connected to the first flow path; and
a second flow path connection in the second region of the first filter having a second area and being configured to be connected to the fourth flow path, wherein the first area is greater than the second area.

5. The fine particle separating apparatus according to claim 4 , further comprising:
a second pump disposed in at least a portion of one of the fourth or fifth flow paths.

6. The fine particle separating apparatus according to claim 1 , wherein the second flow path or the third flow path further comprises a sample collection device configured to perform component analysis on the fine particles in the sludge.

7. The fine particle separating apparatus according to claim 1 , further comprising:
a second filter disposed between the second flow path and the third flow path, the second filter comprising a second mesh having a pore diameter of 40 μm or less.

8. The fine particle separating apparatus according to claim 7 , wherein the second filter further comprises a blade assembly, at least a portion of which is rotatably mounted on a surface of the second mesh.

9. The fine particle separating apparatus according to claim 1 , further comprising:
a detention tank configured to store the effluent discharged from the third flow path, wherein the effluent flows into the third flow path or the fourth flow path from the detention tank; and
a third filter disposed at an entrance of the third flow path to which the detention tank is connected, the third filter comprising a third mesh having a pore diameter of 40 μm or less.

10. The fine particle separating apparatus according to claim 9 , wherein the third filter further comprises a blade assembly, at least a portion of which is rotatably mounted on a surface of the third mesh.

11. The fine particle separating apparatus according to claim 1 , wherein the reservoir comprises a second mesh having a pore diameter of 1 μm to 40 μm such that the fourth mesh is configured to filter out algae and separate purified water from the effluent for discharging from the reservoir.

12. The fine particle separating apparatus according to claim 1 , further comprising:
a separation tank connected to the third flow path configured to separate and store particles passing through the first mesh.

13. The fine particle separating apparatus according to claim 12 , further comprising:
a second filter provided at the separation tank and comprising a second mesh having a pore diameter of 10 μm or less.

14. The fine particle separating apparatus according to claim 1 , further comprising:
a second filter provided at the reservoir and comprising a second mesh having a pore diameter configured to prevent passage of particles through the second mesh that failed to pass through the first mesh.

15. A fine particle separating apparatus comprising:
a first filter comprising a first mesh separating fine particles contained in sludge according to size, the first filter having a first region and a second region with the first mesh placed therebetween;
a first flow path mounted in the first region and configured to allow the sludge to flow therethrough into the first filter;
a second flow path mounted at both ends thereof in the second region configured to receive an effluent from the first filter and configured to allow the effluent to flow therethrough back into the first filter;
third flow path mounted in the first region configured to receive the effluent from the second flow path;
a reservoir receiving the effluent discharged from the third flow path; and
a first pump configured to create a flow of the effluent,
wherein the first mesh is rotatably mounted on the first filter, and
wherein the separating apparatus is constructed such that fine particles contained in the sludge flowing through the first flow path that fail to pass through the first mesh are forced to flow into the reservoir by hydraulic pressure of the effluent flowing into the first filter through the second flow path.

16. The fine particle separating apparatus of claim 15 , wherein the first filter further comprises a blade assembly passing through at least a portion of the first mesh, wherein at least a portion of the blade assembly is rotatably mounted on a surface of the first mesh.

17. The fine particle separating apparatus according to claim 15 , wherein the reservoir further comprises a first reservoir configured to store the effluent discharged from the third flow path and a second reservoir configured to store the effluent with the fine particles separated therefrom in the first reservoir, the fine particle separating apparatus further comprising:
a second filter configured to separate the fine particles contained in the first reservoir according to size.

18. The fine particle separating apparatus according to claim 17 , further comprising:
a fourth flow path adapted to discharge the effluent from the first reservoir to the second reservoir therethrough.

19. The fine particle separating apparatus according to claim 18 , further comprising:
a second pump mounted on at least a portion of the fourth flow path and configured to create a flow of the effluent.

Assignees

• Univ Yeungnam Res Cooperation Foundation

Inventors

• Jung Jin Young
• Lee Byeong Jun

Classifications

• B01D33/15 Primary

  with rotary plane filtering surfaces · CPC title

• B01D33/41

  in series connection · CPC title

• B01D33/461 Primary

  brushes · CPC title

• B01D33/466

  scrapers · CPC title

• B01D36/00

  Filter circuits or combinations of filters with other separating devices · CPC title