Single cell vertical static flow flotation unit cross-reference to related applications

An apparatus for removing suspended matter from a liquid, comprising;

• a substantially cylindrical vertically oriented vessel having an interior chamber therein adapted to receive a flow of liquid having suspended matter therein;
• an annular separation wall means mounted in the vessel transversely to a vertical axis of the vessel for separating a lower gasification chamber from the remainder of the interior chamber, said separation wall means having a central opening therein and being attached to a continuous side wall of the vessel about the circumference thereof;
• a degassification chamber formed above said separation wall means in fluid communication with the gasification chamber through said central opening;
• means for introducing the flow of liquid into the gasification chamber comprising a primary liquid distribution means located adjacent a bottom of the vessel and a secondary liquid distribution means having an independent outlet within the vessel at a level slightly above said primary liquid distribution means;
• means for introducing a flow of gas in the gasification chamber for attracting the suspended matter and for carrying the suspended matter upwardly to the degasification chamber, said gas introducing means comprising an eductor means having an outlet at substantially same level as an outlet of said secondary liquid distribution means within the vessel;
• means for concentrating the suspended matter extending vertically through at least a portion of the degassification chamber, said means for concentrating comprising a vertical funnel having a diameter substantially smaller than diameter of the interior chamber, said funnel being attached to said separation wall means and circumferentially surrounding said opening in the separation wall means;
• a skim collection means for collecting the suspended matter in the upper portion of the vessel and delivering skim outside of the vessel, said skim collection means being positioned at a level above said concentration means;
• means for removing treated liquid from the vessel positioned in a lower part of the degasification chamber;
• and,
• a means for controlling a volume of skim collection comprising a liquid level controller means operatively connected to the upper portion of the vessel, said liquid level control means having means to transmits a signal to a normally open control valve means, said control valve means operatively connected to the means for removing treated liquid from the vessel and an adjustable timer means operatively connected to said control valve means for intermittently interrupting said signal from said liquid level controller means to slightly increase said volume of liquid contained within the vessel by throttling or closing said control valve means, so as to raise a level of liquid and allow skimming through said skim collection means.

An apparatus for removing suspended matter from a liquid, comprising;

• a substantially cylindrical vertically oriented vessel having an interior chamber therein adapted to receive a flow of liquid having suspended matter therein;
• an annular separation wall means mounted in the vessel transversely to a vertical axis of the vessel for separating a lower gasification chamber from the remainder of the interior chamber, said separation wall means having a central opening therein and being attached to a continuous side wall of the vessel about the circumference thereof;
• a degassification chamber formed above said separation wall means in fluid communication with the gasification chamber through said central opening;
• means for introducing the flow of liquid into the gasification chamber comprising a primary liquid distribution means located adjacent a bottom of the vessel and a secondary liquid distribution means having an independent outlet within the vessel at a level slightly above said primary liquid distribution means;
• means for introducing a flow of gas in the gasification chamber for attracting the suspended matter and for carrying the suspended matter upwardly to the degasification chamber, said gas introducing means comprising an eductor means having an outlet at substantially same level as an outlet of said secondary liquid distribution means within the vessel;
• means for concentrating the suspended matter extending vertically through at least a portion of the degassification chamber, said means for concentrating comprising a vertical funnel having a diameter substantially smaller than diameter of the interior chamber, said funnel being attached to said separation wall means and circumferentially surrounding said opening in the separation wall means;
• a skim collection means for collecting the suspended matter in the upper portion of the vessel and delivering skim outside of the vessel, said skim collection means being positioned at a level above said concentration means;
• means for removing treated liquid from the vessel positioned in a lower part of the degassification chamber;
• and,
• a means for controlling a volume of skim collection comprise a liquid level controller operatively connected with the upper portion of the vessel and having means to transmit a signal, treated liquid outlet control valve means operatively connected to receive said signal from said liquid level controller, an adjustable timer means, connected to a normally closed skim collection outlet means and having means to transmit an intermittent signal to said normally closed skim collection outlet means which opens in response to said intermittent signal received from said timer means.

An apparatus for removing suspended matter from a liquid, comprising:

• a substantially cylindrical vertically oriented vessel having an interior chamber therein adapted to receive a flow of liquid having suspended matter therein;
• an annular separation wall means mounted in the vessel transversely to a vertical axis of the vessel for separating a lower gasification chamber from the remainder of the interior chamber, said separation wall means having a central opening therein and being attached to a continuous side wall of the vessel about the circumference thereof;
• a degassification chamber formed above said separation wall means in fluid communication with the gasification chamber through said central opening;
• means for introducing the flow of liquid into the gasification chamber comprising a primary liquid distribution means located adjacent a bottom of the vessel and a secondary liquid distribution means having an independent outlet within the vessel at a level slightly above said primary liquid distribution means;
• means for introducing a flow of gas in the gasification chamber for attracting the suspended matter and for carrying the suspended matter upwardly to the degasification chamber, said gas introducing means comprising an eductor means having an outlet at substantially same level as an outlet of said secondary liquid distribution means within the vessel;
• means for concentrating the suspended matter extending vertically through at least a portion of the degassification chamber, said means for concentrating comprising a vertical funnel having a diameter substantially smaller than diameter of the interior chamber, said funnel being attached to said separation wall means and circumferentially surrounding said opening in the separation wall means;
• a skim collection means for collecting the suspended matter in the upper portion of the vessel and delivering skim outside of the vessel said skim collection means being positioned at a level above said concentration means;
• means for removing treated liquid from the vessel positioned in a lower part of the degassification chamber;
• and,
• a means for controlling a volume of skim collection comprising a normally open treated liquid outlet valve means operatively connected to said treated liquid removing means, an adjustable timer means operatively connected to said valve means and having means to send intermittent signals to said valve means causing said valve means to close, and a normally open, vertically adjustable nozzle means connected to said treated liquid outlet means and, for maintaining a predetermined volume of liquid in the vessel.