Hydraulic classifiers

Patent metadata

Field	Value
Publication number	US-10589291-B2
Application number	US-201816198183-A
Country	US
Kind code	B2
Filing date	Nov 21, 2018
Priority date	Aug 9, 2016
Publication date	Mar 17, 2020
Grant date	Mar 17, 2020

Abstract

Hydraulic classifiers are provided for sorting material using injected water. Some embodiments include upper and lower housings having different cross-sectional shapes. In some embodiments, certain improvements are provided for cleanout and/or removal or replacement of teeter bars.

First claim

The invention claimed is:

1. A hydraulic classifier, comprising:
an upper housing, said upper housing having a plurality of generally planar sidewalls, the upper housing having a rectangular cross-section;
a lower housing operably coupled to said upper housing, the lower housing having a round cross-section;
an overflow outlet supported on said upper housing;
a feed inlet disposed to receive aggregate material into said upper housing;
a water injection system, the water injection system comprising:
a conduit;
a plurality of teeter bars in fluid communication with said conduit; and

an underflow outlet in fluid communication with said lower housing.

2. The hydraulic classifier of claim 1 , wherein said upper housing has a square cross-section.

3. The hydraulic classifier of claim 2 , wherein said lower housing has a circular cross-section.

4. The hydraulic classifier of claim 1 , wherein said lower housing has a circular cross-section.

5. The hydraulic classifier of claim 1 , wherein said lower housing comprises a plurality of curved plate sections.

6. The hydraulic classifier of claim 5 , wherein said upper housing and said lower housing are joined by a transitional portion.

7. The hydraulic classifier of claim 6 , wherein said transitional portion comprises a plurality of curved plate sections.

8. The hydraulic classifier of claim 7 , wherein each said curved plate section comprises a straight upper edge joined to said upper housing and a curved lower edge joined to said lower housing.

9. The hydraulic classifier of claim 1 , wherein said upper housing and said lower housing are joined by a transitional portion.

10. The hydraulic classifier of claim 9 , wherein said transitional portion comprises a plurality of curved plate sections.

11. The hydraulic classifier of claim 10 , wherein each said curved plate section comprises a straight upper edge joined to said upper housing and a curved lower edge joined to said lower housing.

12. A hydraulic classifier, comprising:
a housing including an upper housing portion and a lower housing portion, said upper housing portion having a plurality of generally planar sidewalls, said lower housing portion having a plurality of curved plate sections;
a weir supported on said upper housing portion;
a launder supported on said upper housing portion, said weir disposed between said upper housing portion and said launder, said launder including an overflow outlet;
a feed inlet disposed to receive aggregate material into said upper housing portion;
a water injection system; and
an underflow outlet in fluid communication with said lower housing portion.

13. The hydraulic classifier of claim 12 , wherein said upper housing portion has a rectangular cross-section.

14. The hydraulic classifier of claim 13 , wherein said lower housing portion has a circular cross-section.

15. The hydraulic classifier of claim 12 , wherein said lower housing portion has a circular cross-section.

16. The hydraulic classifier of claim 12 , wherein said upper housing portion and said lower housing portion are joined by a transitional portion.

17. The hydraulic classifier of claim 12 , wherein each said curved plate section comprises a straight upper edge joined to said upper housing portion and a curved lower edge joined to said lower housing portion.

18. The hydraulic classifier of claim 17 , wherein said lower housing portion has a circular cross-section.

19. The hydraulic classifier of claim 18 , wherein said upper housing portion has a rectangular cross-section.

20. The hydraulic classifier of claim 18 , wherein said upper housing portion has a square cross-section.

Assignees

• Superior Industries

Inventors

• Grimm Lafe
• Hanson Shane
• Ilott Paul

Classifications

• B03B5/623 Primary

  Upward current classifiers · CPC title