IP Library Granted Patent US 8,663,472
Granted Patent B1
US 8,663,472 · App. 13/581,578 · Granted Mar 4, 2014

Multi-chambered hydroclone

Inventors: John H. Mallard (Saratoga, CA); Eugene A. Mckay (Woodside, CA); Steven E. O'Reilly (Menlo Park, CA); Scott T. Burr (Midland, MI)
Assignee: Dow Global Technologies LLC
B01D36/00B01D21/26
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Quick Facts
Patent No.
US 8,663,472
App. No.
13/581,578
Granted
Mar 4, 2014
Kind
B1
Abstract

A hydrocyclone ( 10 ) having a tank ( 12 ) including a fluid inlet ( 14 ), a filtered fluid outlet ( 16 ), an effluent outlet ( 18 ), a process fluid outlet ( 20 ) and an inner peripheral wall ( 22 ) enclosing three vertically aligned chambers ( 24, 30, 32 ) including a vortex chamber ( 24 ) in fluid communication with the fluid inlet through a fluid pathway ( 28 ) adapted for receiving an incoming fluid flow and generating a vortex fluid flow about a filter assembly ( 26 ) which is located within the vortex chamber which encloses a filtrate chamber ( 66 ) which is in fluid communication with the filtered fluid outlet ( 16 ). An effluent separation chamber ( 30 ) is located bellow the vortex chamber and is in fluid communication with the vortex chamber and the effluent outlet. A process fluid chamber is located bellow the effluent separation chamber and is in fluid communication with the effluent separation chamber and the process fluid outlet.

Claims (13)

1. A hydroclone ( 10 ) comprising a tank ( 12 ) including a fluid inlet ( 14 ), a filtered fluid outlet ( 16 ), an effluent outlet ( 18 ), a process fluid outlet ( 20 ) and an inner peripheral wall ( 22 ) enclosing a plurality of vertically aligned chambers comprising:

a vortex chamber ( 24 ) in fluid communication with the fluid inlet ( 14 ), a filter assembly ( 26 ) located within the vortex chamber ( 24 ) and enclosing a filtrate chamber ( 66 ), a fluid pathway ( 28 ) adapted for receiving incoming fluid and generating a vortex fluid flow about the filter assembly ( 26 ), wherein the filtrate chamber ( 66 ) is in fluid communication with the filtered fluid outlet ( 16 ) such that fluid passing through the filter assembly ( 26 ) enters the filtrate chamber ( 66 ) and exits the tank ( 12 ) by way of the filtered fluid outlet ( 16 ),

an effluent separation chamber ( 30 ) located below and in fluid communication with the vortex chamber ( 24 ) which is adapted for receiving unfiltered fluid from the vortex chamber ( 24 ),

a process fluid chamber ( 32 ) located below and in fluid communication with the effluent separation chamber, ( 30 ) which is adapted for receiving a process fluid from the effluent separation chamber ( 30 ) and wherein the process fluid chamber ( 32 ) is in fluid communication with the process fluid outlet ( 20 ) by which process fluid exits the tank ( 12 ),

a vortex flow barrier ( 34 ) located between the vortex and effluent separation chambers ( 24 , 30 ) which disrupts vortex fluid flow ( 28 ) as fluid flows from the vortex chamber ( 24 ) to the effluent separation chamber ( 30 ), and

an effluent barrier ( 36 ) located below the effluent separation chamber ( 30 ) which directs fluid flow from the effluent separation chamber ( 30 ) to the process fluid outlet ( 20 ), and wherein the effluent barrier ( 36 ) further comprises a centrally located effluent opening ( 38 ) in fluid communication with the effluent outlet ( 18 ) by which effluent exits the tank ( 12 ).

2. The hydroclone ( 10 ) of claim 1 wherein the vortex flow barrier ( 34 ) directs a majority of fluid flow between the vortex and effluent separation ( 24 , 30 ) chambers to locations adjacent to the inner peripheral wall ( 22 ) of the tank ( 12 ).

3. The hydroclone ( 10 ) of claim 1 wherein the effluent barrier ( 36 ) limits a majority of fluid flow between the effluent separation and process fluid chambers ( 34 , 36 ) to locations adjacent to the inner peripheral wall ( 22 ) of the tank ( 12 ).

4. The hydroclone ( 10 ) of claim 1 wherein the effluent barrier ( 36 ) further comprises an outer periphery ( 40 ′) extending to locations adjacent to the inner peripheral wall ( 22 ) of the tank ( 12 ), and further comprises a plurality of apertures ( 42 ′) extending therethrough.

5. The hydroclone ( 10 ) of claim 1 wherein at least one of the vortex flow barrier ( 34 ) and effluent barrier ( 36 ) comprise a plate-shaped configuration.

6. The hydroclone ( 10 ) of claim 1 wherein the vortex flow barrier ( 34 ) and effluent barrier ( 36 ) both comprise configurations including an outer periphery ( 40 , 40 ′) extending to locations adjacent to the inner peripheral wall ( 22 ) of the tank ( 12 ), and further comprise a plurality of apertures ( 42 , 42 ′) extending through the barriers ( 34 , 36 ) at locations adjacent to their outer periphery ( 40 , 40 ′) that permit fluid flow therethrough.

7. The hydroclone ( 10 ) of claim 6 wherein the apertures ( 42 ) of the vortex flow barrier ( 34 ) are vertically off-set from the apertures ( 42 ′) of the effluent barrier ( 36 ).

8. The hydroclone ( 10 ) of claim 1 wherein the effluent barrier ( 36 ) comprises a central region that is lower or higher than the outer periphery ( 40 ).

Assignments (7)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 4, 2021
From: DOW GLOBAL TECHNOLOGIES LLC
To: THE DOW CHEMICAL COMPANY
Reel/Frame 056478/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 4, 2021
From: THE DOW CHEMICAL COMPANY
To: DDP SPECIALTY ELECTRONIC MATERIALS US, INC.
Reel/Frame 056478/0527 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 28, 2021
From: DDP SPECIALTY ELECTRONIC MATERIALS US, LLC
To: ACCELERATED FILTRATION, INC.
Reel/Frame 056077/0476 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 7, 2014
From: BURR, SCOTT T.
To: DOW GLOBAL TECHNOLOGIES LLC
Reel/Frame 031905/0604 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 7, 2014
From: MALLARD, JOHN H.; MCKAY, EUGENE A.; O'REILLY, STEVEN E.
To: CLEAN FILTRATION TECHNOLOGIES LLC
Reel/Frame 031905/0308 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 7, 2014
From: CLEAN FILTRATION TECHNOLOGIES LLC
To: THE DOW CHEMICAL COMPANY
Reel/Frame 031905/0435 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 7, 2014
From: THE DOW CHEMICAL COMPANY
To: DOW GLOBAL TECHNOLOGIES LLC
Reel/Frame 031905/0523 →
Continuity (1)
Provisional Application 61483221 · May 6, 2011