System, methods, and apparatus for aggregate dewatering

Patent metadata

Field	Value
Publication number	US-9651307-B2
Application number	US-201514632747-A
Country	US
Kind code	B2
Filing date	Feb 26, 2015
Priority date	Feb 26, 2015
Publication date	May 16, 2017
Grant date	May 16, 2017

Abstract

A dewatering device for aggregate product can be used to retro-fit existing aggregate product dewatering facilities in order to more efficiently capture product. The dewatering device can be movable to allow for the portability of the device relative to existing dewatering facilities. The device is adapted to receive a slurry of aggregate product and water and to vibrate to dry the aggregate product. A recycle system is included to receive any fines that may otherwise be lost by the system. The recycle system captures the fines and redirects them back towards the vibrating process of the vibrating device to direct them towards an exit of the vibrating device in order to use said fines as well as the other dewatered aggregate product. The portability of the device allows the device to be used with the existing facilities without the need to completely replace existing components for dewatering aggregate product.

First claim

What is claimed is:

1. A dewatering device for aggregate product for use with an existing system for dewatering aggregate product, said existing system comprising a conveyor system to move the aggregate product, and said dewatering device comprising:
a vibrating screen for receiving aggregate product from the existing system, said vibrating screen including a vibrating system to move said screen;
a recycle system positioned at least partially below the vibrating screen to receive fine materials passed through the screen;
said recycle system operatively connected to a return conduit wherein the fine materials are mixed with a fluid in the conduit for moving said fluid and said fine materials back towards the existing system via the conduit; and
said dewatering device being independent of the existing system in a manner that the dewatering device can be portable in relation to the existing system.

2. The dewatering device of claim 1 , further comprising skids at least partially supporting the dewatering device.

3. The dewatering device of claim 1 , further comprising wheels at least partially supporting the dewatering device.

4. The dewatering device of claim 1 , wherein said vibrating screen includes an entrance for receiving aggregate product and an exit for passing dewatered aggregate product.

5. The dewatering device of claim 1 , wherein the vibrating system comprises one or more vibrating motors to linearly and horizontally move said vibrating screen.

6. The dewatering device of claim 1 , wherein the vibrating system comprises a flywheel operatively connected to the vibrating screen to move said screen.

7. The dewatering device of claim 1 , wherein the recycle system comprises an underflume with an aperture and the conduit operatively connected to the underflume, the conduit directing the fine material in the underflume toward the vibrating screen.

8. The dewatering device of claim 7 , wherein the conduit is a water hose for passing water and fine material toward the vibrating screen.

9. The dewatering device of claim 7 , wherein the conduit moves the fine materials in an at least partially upward direction wherein a portion of the conduit at least temporarily affixed to the existing system.

10. The dewatering device of claim 1 , wherein the recycle system comprises:
a reservoir member disposed to receive fine materials passed through the screen;
a redirection apparatus comprising:
a first inlet, the first inlet disposed to receive fine materials from the reservoir member; and
a second inlet, the second inlet configured to receive a fluid from outside the reservoir member,
whereby the fluid carries fine materials received from the reservoir member back to the existing system.

11. The dewatering device of claim 10 , wherein the redirection apparatus comprises a nozzle.

12. The dewatering device of claim 11 , wherein the redirection apparatus is configured to increase a velocity of the fluid and fine materials passing through the nozzle.

13. The dewatering device of claim 11 , wherein a diameter of the nozzle decreases along a direction of fluid travel through the nozzle.

14. The dewatering device of claim 10 , wherein the redirection apparatus is in fluid communication with the conduit, wherein fine materials are directed from the redirection apparatus to the vibrating screen.

15. The dewatering device of claim 10 , whereby fine materials are redirected from a first height below the vibrating screen to a second height above the vibrating screen.

16. The dewatering device of claim 10 , wherein the redirection apparatus is in fluid communication with the existing system.

17. The dewatering device of claim 16 , wherein the redirection apparatus communicates fluid from a first height lower than the vibrating screen to a second height, the second height being higher than the first height.

18. The dewatering device of claim 17 , wherein the existing system conveys the fine materials from the second height to a third height, the third height being higher than a screen height of the vibrating screen, whereby the fine materials fall by gravity from the existing system onto the vibrating screen.

19. The dewatering device of claim 10 , wherein the reservoir member includes an outlet, and wherein fine materials travel by gravity through the outlet and the first inlet into the redirection apparatus.

20. The dewatering device of claim 10 , wherein the second inlet is in fluid communication with a water feed.

21. The dewatering device of claim 10 , wherein the first inlet is configured to receive a slurry from the reservoir member, the slurry comprising water and the fine materials.

22. A portable dewatering device for drying aggregate product delivered to the device by a conveyor from a housing, the dewatering device comprising:
a vibrating screen positioned at least partially below the conveyor to receive aggregate product therefrom and movable by a vibrating system to dry the product;
a recycle system positioned at least partially below the vibrating screen to receive fine materials that pass through the vibrating screen, said recycle system comprising a conduit for providing water to mix with the fine materials to direct the fine materials that pass through the vibrating screen back into the conveyor; and
a support for supporting the dewatering device, the support including wheels or skids for providing portability and independence between the dewatering device and the conveyor.

23. The dewatering device of claim 22 , wherein said recycle system comprises an underflume trailer and the conduit operatively connected thereto to receive the fine material and direct it toward the vibrating screen.

24. The dewatering device of claim 22 , wherein the vibrating screen comprises a housing with an entrance for receiving aggregate product from the conveyor, an outlet for directing dried product, and a screen therebetween that is movable to drain water from the aggregate product.

Assignees

• Superior Industries

Inventors

• Squires Frank
• Brown Jeremy
• Afrank Chris

Classifications

• B01D33/27

  with rotary filtering surfaces, which are neither cylindrical nor planar, e.g. helical surfaces · CPC title

• F26B19/005

  Self-contained mobile devices, e.g. for agricultural produce (movable devices with radiation means F26B3/28; small self-contained devices for drying objects at rest F26B9/003) · CPC title

• F26B17/266

  the materials to be dried being moved in a helical, spiral or circular path, e.g. vibrated helix · CPC title

• B07B1/005 Primary

  Transportable screening plants · CPC title

• F26B5/00

  Drying solid materials or objects by processes not involving the application of heat (separating liquids from solids by straining B01D; replacing liquids in wet solids by other liquids, e.g. water by spirit, B01D12/00; drying by electrophoresis B01J) · CPC title