序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
101 DUAL-CELL MECHANICAL FLOTATION SYSTEM WITH INTERMITTENT SKIMMING EP15165471.2 2002-11-07 EP2926910B1 2016-09-28 Stacy, Melvin; Tolmie, Kenneth C.; Chen, James C. T.
It has been discovered that a mechanical flotation system (10) having only two cells (18, 20) can be nearly as efficient as one having more cells, yet provide an apparatus with a considerably smaller footprint, significantly reduced capital and operating costs, as well as be resistant to floating oil recovery platform wave effects. The dual-cell mechanical flotation system (10) has, in sequential order, an inlet chamber (16) and two gasification chambers or cells (18, 20), each with at least one gas ingestion and mixing mechanism (32), and a discharge chamber (24). A common primary skim collection channel (40) atop the partition (44) dividing the gasification chambers (18, 20) efficiently channels away the bulk of the floating collected matter. At least one baffle (60) depending from the top of the vessel (12) near the primary skim collection channel (40) helps dampen the action of the fluid containing the suspended matter when the vessel (12) is affected by wave motion against the floating oil production platform. The liquid or froth levels (50, 66, and 76) can be intermittently raised for collection or otherwise lowered during periods of excessive turbulence (e.g. pitch or roll) to prevent clarified liquid from being collected with suspended matter.
102 A CONTINUOUS ROW ELECTROFLOCCULATION WATER TREATMENT SYSTEMS EP12781572 2012-05-03 EP2704996A4 2014-10-22 ROBINSON VIVIAN
A method is disclosed in which water is pumped continuously into one end of a container, the pollutants are captured and floated to the surface, the treated and cleaned water flows out the other end and the floated pollutants are removed. In one embodiment, the system consists of at least one container that has a set of electrically active plates and a mechanism for capturing and removing the pollutants that are floated to the surface by the electrically active plates. Multiple containers can be connected in series and used for similar or separate purposes to remove the pollutants. In another embodiment, the single container is partitioned into a multiple of chambers. Each chamber can be used for a similar or separate purpose, which purpose depends upon the application. In both embodiments, the primary reaction consists of electroflocculation, in which a low voltage is applied across a set of metal plates. This liberates metal ions and gas bubbles. The metal ions capture the pollutants and the gas bubbles float them to the surface. The whole process is done in a manner in which the floated pollutants form a stable layer on the surface of the flowing water. Different sets of metal plates can be used in separate chambers to remove different pollutants. The voltage to the plates is controlled in such a manner as to provide a known charge dose to the water as it passes through the apparatus at a Known rate. This is controlled by monitoring and controlling both the rate at which the water flows and the rate at which the electric charge is imparted through the water. In operation water is pumped into the first chamber where it is treated with the first set of plates. It can then flow into a second chamber, with a barrier mechanism that limits the surface floe from flowing with it. This process can be repeated in other chambers until the water is adequately treated with different sets of plates. The water can then flow into additional chambers in which much of the residual floe and bubbles floats to the surface. Each chamber has a wall over which the floe can flow into a drain mechanism, and a mechanism for getting the floe to flow over the wall. In this manner these continuous flow electroflocculation water treatment systems operate like a membrane free filter or a chemical free dissolved air flotation system.
103 FLOTATION MACHINE, FROTH RECOVERY APPARATUS, AND METHOD FOR RECOVERING MATERIAL EP11851624 2011-12-21 EP2655267A4 2014-09-03 OLSON TIMOTHY J; RODRIGUES SILVA RONNEY ROGERIO
104 A CONTINUOUS ROW ELECTROFLOCCULATION WATER TREATMENT SYSTEMS EP12781572.8 2012-05-03 EP2704996A1 2014-03-12 ROBINSON, Vivian
A method is disclosed in which water is pumped continuously into one end of a container, the pollutants are captured and floated to the surface, the treated and cleaned water flows out the other end and the floated pollutants are removed. In one embodiment, the system consists of at least one container that has a set of electrically active plates and a mechanism for capturing and removing the pollutants that are floated to the surface by the electrically active plates. Multiple containers can be connected in series and used for similar or separate purposes to remove the pollutants. In another embodiment, the single container is partitioned into a multiple of chambers. Each chamber can be used for a similar or separate purpose, which purpose depends upon the application. In both embodiments, the primary reaction consists of electroflocculation, in which a low voltage is applied across a set of metal plates. This liberates metal ions and gas bubbles. The metal ions capture the pollutants and the gas bubbles float them to the surface. The whole process is done in a manner in which the floated pollutants form a stable layer on the surface of the flowing water. Different sets of metal plates can be used in separate chambers to remove different pollutants. The voltage to the plates is controlled in such a manner as to provide a known charge dose to the water as it passes through the apparatus at a Known rate. This is controlled by monitoring and controlling both the rate at which the water flows and the rate at which the electric charge is imparted through the water. In operation water is pumped into the first chamber where it is treated with the first set of plates. It can then flow into a second chamber, with a barrier mechanism that limits the surface floe from flowing with it. This process can be repeated in other chambers until the water is adequately treated with different sets of plates. The water can then flow into additional chambers in which much of the residual floe and bubbles floats to the surface. Each chamber has a wall over which the floe can flow into a drain mechanism, and a mechanism for getting the floe to flow over the wall. In this manner these continuous flow electroflocculation water treatment systems operate like a membrane free filter or a chemical free dissolved air flotation system.
105 METHOD FOR REMOVAL OF UNBURNED CARBON CONTAINED FLY ASH EP06834398.7 2006-12-11 EP1970135B1 2013-07-17 MATSUO, Kazuyoshi; ABE, Kazuo; SUZUKI, Takao; SAITO, Shinichiro
106 A METHOD AND DEVICE FOR CONVERTING HORIZONTAL TANKS INTO GAS FLOTATION SEPARATORS EP07866625 2007-09-04 EP2370191A4 2012-05-30 LEE DOUGLAS W; OWENS NICHOLAS
A gas flotation separator for use in horizontal tanks, such as those used for oil storage on board Floating Production Storage and Off-loading (FPSO) vessels, includes dividing the tank into a plurality of chambers operating in series. Prior to entering each chamber, the contaminated aqueous phase is mixed with a stream containing gas bubbles to aid in flocculation and flotation of the immiscible phase contaminant. The gas bubble recycle stream can be generated by injecting a controlled rate of a pressurized gas into a liquid stream of the clean produced water in a process external to the tank or by induction of a gas phase internal to the tank. The mixture flows into the first chamber and impinges on an angled inlet water weir. A portion of the immiscible phase and the gas phase rises to the top of the chamber while the remaining immiscible contaminants flow downward with the aqueous phase to the bottom of the chamber. The aqueous phase makes a 180° turn upward by entering a plurality of parallel flow conduits formed into the wall of the baffle that separates the each series chamber. In each parallel duct a second gas bubble stream is injected to further aid in flocculation and flotation of the immiscible contaminants. The aqueous phase remixes at the top of the second chamber where it impinges on a second angled weir. This process is repeated in each series chamber until the last chamber where the cleaned water is pumped out of the chamber via a liquid pump. Varying the rate of water removal there from controls the water level in last chamber. The flocculated and floating oil contaminant can be removed by either 1) periodic skimming into an over-flow weir by raising the water level in the chamber, or 2) a continuously rotating paddle or brush object that lifts or carries the floating oil layer away from the water surface and transfers it to a collector system.
107 Dual-cell mechanical flotation system EP10003515.3 2001-06-07 EP2218510B1 2012-05-23 Stacy, Melvin; Tolmie, Kenneth C.; Chen, James C. T.
It has been discovered that a mechanical flotation system having only two cells can be nearly as efficient as one having more cells, yet provide an apparatus with a considerably smaller footprint, significantly reduced capital and operating costs, as well as be resistant to floating oil recovery platform wave effects. The dual-cell mechanical flotation system has, in sequential order, an inlet chamber (16) and two gasification chambers or cells (18,20), each with at least one gas ingestion and mixing mechanism (32), and a discharge chamber (22). A common primary skim collection channel (40) atop the partition diving the gasification chambers efficiently channels away the bulk of the floating collected matter. At least one baffle (60) depending from the top of the vessel near the primary skim collection channel (40) helps dampen the action of the fluid containing the suspended matter when the vessel is affected by wave motion against the floating oil production platform. A partition (42) dividing the inlet chamber (16) from the first gasification chamber (18) and a partition (46) dividing the second gasification chamber (20) from the outlet chamber (22) both extending from the top of the vessel downward.
108 Flotationsapparat und Flotationsverfahren EP10189809.6 2010-11-03 EP2450106A1 2012-05-09 Grossmann, Lilla; Krieglstein, Wolfgang

Die Erfindung betrifft einen Flotationsapparat mit einer eine Seitenwand und einen Boden (9) aufweisenden Flotationskammer (2), einem Rührwerk (3), einer dem Rührwerk zugeordneten Begasungseinrichtung (3), einer an einem oberen Bereich der Flotationskammer angeordneten ersten Schaumsammeleinrichtung(5) für ein bei der Flotation gebildetes Schaumprodukt, und einer Beschickungsleitung (6) zur Beschickung der Flotationskammer mit Trübe, wobei die Beschickungsleitung an einer oberhalb des Rührwerks liegenden Stelle (19) in die Flotationskammer mündet und in der Beschickungsleitung ein Ejektor (7) vorhanden ist.

Die Erfindung betrifft außerdem ein Flotationsverfahren, das in zwei Stufen innerhalb einer Flotationskammer (2) einer Flotationsapparatur (1) durchgeführt wird, wobei in einer ersten Flotationsstufe ein Ejektor (7) und in einer zweiten Flotationsstufe ein Rührwerk (3) eingesetzt wird.

109 APPARATUS FOR STOCK RAISING EP02718703.8 2002-04-24 EP1494970B1 2008-10-08 Kim, Kyung Wong
The present invention relates to a sludge treatment apparatus in an oxidized and dissolved air floating way, which is treated in the order of a separated excretions liquid retaining tank O in a solid-liquid separating and high-speed dehydrating device 100, the aeration devices and the fog flotation treatment devices in first to third treatment tanks, P;Q, and R disposed on the one side of the excretions liquid retaining tank O in parallel relation with each other, the first to third deformers 11A-1 to 11A-3 and the first to third dissolved air flotation parts 14A-1 to 14A-3 in adissolved air flotation treatment tank S formed on the one side of the third treatment tank R, and the active carbon layer 501 and the sand layer 502 in a filtering device 500.
110 FLOTATION SEPARATOR EP04808854.6 2004-11-24 EP1697262A1 2006-09-06 CHRISTIANSEN, Björn; SVEBERG, Knut; HJELKREM, Inge; KVAMSDAL, Dag
A flotation separator for the separation of a dispersed liquid phase and/or suspended solid materials from a continuous liquid phase containing free gas including; an open or closed vessel ( 1 ) which is completely or partially liquid filled, is equipped with one or several inlet nozzles ( 2 ) feeding the inflowing mixture through one or several distribution chambers ( 13 ) toward one or several substantially vertically arranged cyclone pipes ( 15 ). Each cyclone pipe ( 15 ) is equipped with a swirl generating inlet device ( 14 ), a lower exit ( 16 ) where continuous liquid phase is exiting the cyclone pipe ( 15 ), and an upper exit ( 17 ) where gas, the dispersed liquid, and/or suspended solids, together with parts of the continuous liquid phase are exiting the cyclone pipe ( 15 ). The upper exit port ( 17 ) of the cyclone pipe or pipes ( 15 ) is completely or partially submerged in the continuous liquid phase.
111 Verfahren zur Entfernung von Störstoffen aus einer wässrigen Papierfasersuspension EP00107633.0 2000-04-08 EP1050342B1 2006-06-07 Holik, Herbert
112 Verfahren zur Entfernung von Störstoffen aus einer wässrigen Papierfasersuspension. EP02008993.4 2002-04-23 EP1262593B1 2006-05-03 Britz, Herbert; Hess, Harald; Kemper, Martin; Reinholdt, Boris; Stetter, Andrea
113 Verfahren und Vorrichtung zur Belüftung von Suspensionen EP04002765.8 2004-02-09 EP1452638A1 2004-09-01 Gabl, Helmut, Dipl.Ing. Dr.

Die Erfindung betrifft ein Verfahren zur Belüftung von Suspensionen, insbesondere zur Flotation, beispielsweise beim Deinken von Faserstoffsuspensionen, mit einer oder mehreren Stufen und / oder Zellen P1, P2, P3, P4, S1, S2, wobei in jeder Stufe / Zelle P1, P2, P3, P4, S1, S2 ein eigener, getrennter Flüssigkeitskreislauf 6 vorgesehen ist. Zur Verbesserung der Schmutzpunkteabscheidung ist erfindungsgemäß vorgesehen, dass ein Cleaner 12, 12', 16, 18 zwischengeschaltet ist. Weiters betrifft die Erfindung eine Vorrichtung zur Durchführung des Verfahrens.

114 Verfahren und Vorrichtung zur Belüftüng von Dispersionen EP01101562.5 2001-01-25 EP1124001A3 2001-12-12 Gabl, Helmuth, Dipl.Ing.Dr.; Hertl, Erwin, Ing.; Scherzinger, Bernhard, Dipl.Ing.Dr.

Die Erfindung betrifft ein Verfahren zur Belüftung von Dispersionen, insbesondere zur Flotation, beispielsweise beim Deinken von Faserstoffsuspensionen, bei dem mindestens zwei Stufen vorgesehen sind. Sie ist vornehmlich dadurch gekennzeichnet, daß in jeder Stufe ein eigener, getrennter Flüssigkeitskreislauf vorgesehen ist, der das Gas bzw. die Luft ansaugt und vermischt. Weiters betrifft die Erfindung eine Vorrichtung mit mindestens zwei Flotationszellen, bei der in jeder Stufe ein eigener Injektor 2 vorgesehen ist, der mit einer zugeordneten Pumpe zu einem Flüssigkeitskreislauf 1 verbunden ist.

115 Verfahren und Vorrichtung zur Belüftüng von Dispersionen EP01101562.5 2001-01-25 EP1124001A2 2001-08-16 Gabl, Helmuth, Dipl.Ing.Dr.; Hertl, Erwin, Ing.; Scherzinger, Bernhard, Dipl.Ing.Dr.

Die Erfindung betrifft ein Verfahren zur Belüftung von Dispersionen, insbesondere zur Flotation, beispielsweise beim Deinken von Faserstoffsuspensionen, bei dem mindestens zwei Stufen vorgesehen sind. Sie ist vornehmlich dadurch gekennzeichnet, daß in jeder Stufe ein eigener, getrennter Flüssigkeitskreislauf vorgesehen ist, der das Gas bzw. die Luft ansaugt und vermischt. Weiters betrifft die Erfindung eine Vorrichtung mit mindestens zwei Flotationszellen, bei der in jeder Stufe ein eigener Injektor 2 vorgesehen ist, der mit einer zugeordneten Pumpe zu einem Flüssigkeitskreislauf 1 verbunden ist.

116 Flotation plant with cyclic liquid volume variation EP96111906.2 1996-07-24 EP0770428A1 1997-05-02 Caravaggio, Antonio; Saltarella, Giuliano; Carmine, Mancini

A flotation plant that includes at least one tank (1, 2, n) suitable to be fed with a must and is characterized in that the volume of the must contained in the at least one tank varies cyclically.

117 Regelung einer Flotationsanlage mit Primär- und Sekundärstufe EP93111761.8 1993-07-22 EP0581196B1 1996-12-04 Schweiss, Peter; Dörflinger, Hans-Dieter
118 WATER CLARIFIER WITH FIRST FILTRATE ISOLATION, IMPROVED BACKWASHING AND IMPROVED BUBBLE GENERATION EP93913923.0 1993-05-17 EP0641292A1 1995-03-08 KROFTA, Milos
A two stage raw water clarifier with first stage flotation and second stage filtration divides at least the lower portion of a flotation tank into independent cells. A branched slotted conduit located in a filter medium in each cell collects clarified water. Valves control the flow of clarified water from each branched conduit either to a clarified water ring conduit or to a first filtrate/backwash ring conduit connected to a storage tank. The filter media is preferably a dual media, a layer of anthracite or activated carbon over a layer of sand. High cell walls and inclined baffles in each cell retain the filter media during backwashing. The baffles also slow the flotation process. A decompression valve for pressurized water with dissolved air has a very narrow annular slot in the flow path through the valve to create microscopic air bubbles of optimal size for the flotation. A movable member sets this annular slot at a proper value. A mechanical or pneumatic actuator moves the member periodically to open the slot and flush out trapped particles.
119 Regelung einer Flotationsanlage mit Primär- und Sekundärstufe EP93111761.8 1993-07-22 EP0581196A3 1994-04-13 Schweiss, Peter; Dörflinger, Hans-Dieter

Die Erfindung betrifft eine Regelung einer aus mit jeweils Schaumüberlauf ausgestatteten Primärzellen (20,20' usw.) einer Primärstufe (1) und diesen für die Überlaufmengen nachgeschalteten Sekundärzellen (61,61').

Die Erfindung ist gekennzeichnet durch die Merkmale:

  • a) Einstellen der dann unverändert gelassenen Überlaufhöhe zur Schaumrinne (12) in der Flotationszelle oder Primärstufe (1);
  • b) Anstauen des Schaums und Messung der Stauhöhe in der Schaumrinne (12) der Primärstufe (1);
  • c) von diesem Meßsignal abhängige Steuerung der Gutstoffmenge der Primärstufe (1) auf möglichst bzw. annähernd konstante Stauhöhe der Schaumrinne (12) der Primärstufe (1);
  • d) Ausscheiden von Luft aus der Überlaufmenge der Primärstufe (1) unter Leiten derselben zu einem tief gelegenen Sammelbehälter (38);
  • e) Rückleiten der Gutstoffmenge der Sekundärstufe (2), teils zur Primärstufe (1) und teils als Bypassmenge zur Sekundärstufe (2) vor die aus dem Sammelbehälter (38) für die Primärstufe (1) zur Sekundärstufe (2) fördernde Pumpe (44) und nach diesem Sammelbehälter (38);
  • f) Regelung des Niveaus in dem Sammelbehälter (38) für die Überlaufmenge der Primärstufe (1) über die Bypassmenge zur Sekundärstufe (2);
  • g) Messen der Niveauhöhe in der Schaumrinne (61) der Sekundärstufe (2) vor einem Ablaufwehr (29) derselben und Regelung des Verhältnisses von zur Primärstufe (1) geführten Rückmenge und zur Sekundärstufe (2) gehenden Bypassmenge abhängig von diesem Meßsignal.

120 DUAL IMPELLER METHOD AND APPARATUS FOR EFFECTING CHEMICAL CONVERSION EP91900005.9 1990-12-05 EP0504187B1 1994-02-16 SMITH, James, W.; LEE, Nim, Yan
Hydrogen sulfide or other gaseous component is removed from a gas stream containing the same by distribution of the gas stream in the form of fine bubbles by a rotary impeller and stationary shroud arrangement at a submerged location in an aqueous iron or other transition metal chelate solution, or other suitable catalyst, contained in an enclosed reaction vessel. Sulfur particles, or other insoluble phase product, of narrow particle size range formed in the reaction are floated off from the iron chelate solution. An oxygen-containing gas stream also is distributed in the form of fine bubbles by a separate rotary impeller and stationary shroud arrangement at a separate submerged location in the iron chelate solution. The second submerged location is separated from the first by a bafle extending downwardly in the reaction vessel from a top closure towards a bottom closure.
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