Skimmer and oil water separator process

• US 20180155216A1
• Filed: 12/06/2016
• Published: 06/07/2018
• Est. Priority Date: 12/06/2016
• Status: Active Grant

• Current Assignee: Exactration, LLC
• Original Assignee: Exactration, LLC
• Inventors: Terrell, Brent D., Stockton, Howard Scott
• Granted Patent: US 10,611,649 B2
• Time in Patent Office: Days
• CPC Class Codes: B01D 15/02 with moving adsorbents
• CPC Class Codes: B01D 17/0202 by ab- or adsorption
• CPC Class Codes: B01D 17/0211 with baffles
• CPC Class Codes: B01D 17/0214 with removal of one of the phases
• CPC Class Codes: B01D 17/12 Auxiliary equipment particularly adapted for use with liquid-separating apparatus, e.g. control circuits
• CPC Class Codes: C02F 1/283 using coal, charred products, or inorganic mixtures containing them
• CPC Class Codes: C02F 1/40 Devices for separating or removing fatty or oily substances or similar floating material cleaning or keeping clear the surface of open water from oil or like materials E02B15/04; devices in sewers for separating liquid or solid substances from sewage E03F5/14, e.g. for use in drains leading to the sewer E03F5/16
• CPC Class Codes: C02F 2001/007 Processes including a sedimentation step
• CPC Class Codes: C02F 2101/20 Heavy metals or heavy metal compounds
• CPC Class Codes: C02F 2301/022 Laminar
• CPC Class Codes: E02B 15/106 Overflow skimmers with suction heads; suction heads

Abstract

A skimmer for removing a layer of oil floating on a surface oil contaminated water which subsequently concentrated and separated in an oil water separator which removes tramp oils or other fluids, such as hydraulic oils, with specific gravity less than that of the operating fluid are required to be removed from operating fluid such as water, lubri-coolants or other liquids. The skimmer supplies concentrated oil water composite fluid to a separator apparatus designed for use in industrial applications in which unwanted tramp oils or other fluids, such as hydraulic oils, with specific gravity less than that of the operating fluid are required to be removed from operating fluid such as water, lubri-coolants or other liquids.

Claims

1. A skimmer for an oil water separator, comprising:

a stationary receiver box including a central vertical stationary receiver box slot therein;

bracket means for supporting said stationary receiver box onto a interior surface of a tank containing water having oil floating of a surface thereof;

a slidable weir plate including a central vertical slot therein in slidable engagement with said stationary receiver box slot and a horizontal weir extending across a selected width of the top of said slidable weir plate;

a pair of floats including vertical side flanges removably and adjustably affixed to tabs extending from said slide weir plate;

said vertical flanges or said tabs including indicia for vertical adjustment of said floats with respect to said slidable weir plate.

2. The skimmer of claim 1 including a oil/water fluid separator in fluid communication therewith, said oil/water separator comprising a chamber with a top and bottom surface, a wall surrounding the periphery of said chamber;

an inlet port in said top surface of said chamber;

an outlet port on said chamber;

a spiral plate, said spiral plate having an outer edge in sealing engagement with said wall of said chamber and said spiral plate formed in an upright funnel shape; and

a center spillway, extending from said inlet port to said bottom surface of said chamber.

3. A method for removing a first fluid having a first density floating on a second fluid having a greater density comprising the steps of:

pumping a mixture of said first fluid and said second fluid into a separation tank;

accumulating and concentrating said first fluid in a layer floating on said second fluid in said separation tank;

separating said first fluid from said second fluid by skimming said first fluid off of said second fluid in a skimmer comprising a stationary receiver box including a central vertical stationary receiver box slot therein, bracket means for supporting said stationary receiver box onto a interior surface of said separation tank, said skimmer including a vertically moveable weir plate including a central vertical slot therein in slidable engagement with a holding means attaching to said stationary receiver box, said weir plate including a horizontal weir extending across a selected width of the top thereof in fluid communication with said first fluid and said second fluid contained in said separation tank, said skimmer including a pair of floats having vertical side flanges with indicia disposed thereon removably and adjustably affixed to a weir plate side tab extending from each side of said weir plate cooperatively engaging said float flange, said float flanges including indicia for vertical adjustment of said floats with respect to said indicator on said side tab of said weir plate, and adjusting the level of said weir plate with respect to the level of said first fluid and said second fluid in said separation tank, said first fluid floating on said second fluid pouring over a top edge of said weir plate and flowing into said stationary receiver and through a conduit to a holding tank or fluid density separator unit; and

pumping said first fluid containing a portion of said second fluid from said skimmer from said holding tank or said skimmer to said fluid density separator comprising a chamber with a top and bottom surface, a wall surrounding the periphery of said chamber;

an inlet port in said top surface of said chamber;

an outlet port on said chamber;

a spiral plate, said spiral plate having an outer edge in sealing engagement with said wall of said chamber and said spiral plate formed in an upright funnel shape; and

a center spillway, extending from said inlet port to said bottom surface of said chamber separating said first fluid from said second fluid.

4. The method of claim 3, wherein said first fluid comprises an oil.

5. The method of claim 3, wherein said second fluid comprises water.