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| Aluminum titanate-mullite ceramic articles |
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| Method of filtering molten metals using a monolithic refractory honeycomb filter |
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Upflow gas eductor induced air floatation separator
| Details |
Inventors: Cairo, Jr., John A.; Jahn, Christopher A.;
Assignee: L'eau Claire Systems, Inc. (Kenner, LA)
Primary Examiner:
Assistant Examiner:
Attorney, Agent or Firm:
An upflow eductor induced air separator providing a main separator tank receiving a continuous fluid flow divided into a plurality of aeration chambers with each aeration chamber providing eductor means wherein gas is educted into an upflow water stream with contaminants of suspended oil and solids in the continuous fluid flow adhering to the gas bubbles for collection in a froth layer on the top portion of the tank. There is further provided a V-shaped collection channel extending substantially the length of the tank for removal of collected oil following the sensing activation of a valve allowing the fluid level within the tank to rise, with oil and solids ladened froth being removed through the valve. There is further provided a recirculation pump for recirculating the effluent which exits the tank following the aeration process, and a chemical injection mechanism for injecting a mixture of chemical flocculating agent entering the main separating tank. |
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DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT The preferred embodiment of the apparatus of the present invention is illustrated in the FIGS.
1 through 4 by the numeral 10.
As seen in the FIGURES, particularly FIGS.
1 and 3, system 10 comprises main separater tank 12 which is substantially an elongated unitary tank having a continuous side wall and rounded end portions for providing the ability to receive pressurized flow into the tank under certain circumstances.
As seen in FIG.
1, tank 12, which is utilized as an upflow gas eductor induced air floatation separator tank receives an inflow of oily contaminated water via flow line 14, with flow line 14 entering tank 12 at point 15 at its front end portion and projecting downward as inlet downcomer 16 for the introduction of the inlet fluid flow toward the lower portion 17 of tank 12 as indicated by arrows 18.
As seen in FIG.
1, the interior of tank 12 provides a plurality of downward depending bulkhead partitions 19, 21, 23, 25 and 27, substantially equally spaced apart, said downward depending bulkhead partitions defining a plurality of aeration chambers 20, 22, 24 and 26 between each successive pair of partitions.
As seen in FIG.
1, bulkhead partition 19 at its upper portion presents an angulated section 28, the function of which will be described further.
As seen in FIGS.
1 and 3, each of said vertically disposed bulkhead partitions extend only partially down the interior of tank 12, allowing a flow area 13 between successive aeration chambers along the lower portion of the tank between the end of each partition and the bottom wall 30 of tank 12.
This would allow the continuous lateral primary flow of fluid through tank 12 following the injection of the fluid via downcomer nozzle 16 through the successive aeration chambers to the second back end portion of tank 12.
It should be noted at this point that following the flow of fluid past the rearmost partition 27, there is vertically disposed upwardly depending baffle plate 29 which, serves to interrupt the flow out of aeration chamber 26, and enables the flow to flow in the upper region 31 of tank 12 and enter a quiescent zone or chamber 33
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