序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
161 VORRICHTUNG ZUR KLÄRUNG VON ABWASSER, VORZUGSWEISE AUF SCHIFFEN, MIT HILFE VON DRUCKENTSPANNUNGSFLOTATION EP10715702.6 2010-04-19 EP2424820B1 2017-05-31 HAMANN, Knud
162 METHOD FOR SEPARATING SUSPENDED SOLIDS FROM A WASTE FLUID EP10808441 2010-08-09 EP2464438A4 2014-09-03 BIAS JOEL; ROSS BRIAN
163 Einrichtung zur Begasung für eine Flotationsvorrichtung, Flotationsvorrichtung und Verfahren zum Austausch wenigstens einer Gasaustritteinheit einer Begasungseinrichtung EP12154043.9 2012-02-06 EP2623189A1 2013-08-07 Grossmann, Lilla; Hartmann, Werner; Kolb, Roland; Krieglstein, Wolfgang; Menger, Sven; Franke, Gerold

Die Erfindung betrifft ein Verfahren zum Austausch wenigstens einer Gasaustritteinheit (3) einer Begasungseinrichtung (2), eine Flotationsvorrichtung (1) und eine Begasungseinrichtung (2) für eine Flotationsvorrichtung (1), umfassend wenigsten eine Gasaustritteinheit (3) zur Abgabe von Gasblasen und eine Gaszuführleitung (5), mittels welcher der wenigstens einen Gasaustritteinheit (3) Gas zuführbar ist. Indem die wenigstens eine Gasaustritteinheit (3) mit der Gaszuführleitung (5) lösbar verbunden ist, können die Stillstandzeiten einer Flotationsvorrichtung (1) reduziert werden und eine Gaseinbringung für eine Flotationsvorrichtung in gewünschter Weise bereitgestellt werden.

164 Begasungssystem und deren Verwendung, sowie Verfahren zur Maximierung einer Begasungsleistung EP11169529.2 2011-06-10 EP2532418A1 2012-12-12 Grossmann, Lilla, Dr.; Krieglstein, Wolfgang

Die Erfindung betrifft ein Begasungssystem zur Begasung einer Suspension, umfassend eine Begasungseinrichtung, welche mindestens einen Gasverteiler, der Gasaustrittsöffnungen mit einem maximalen Öffnungsdurchmesser von etwa 15 mm aufweist, umfasst, wobei das Begasungssystem weiterhin mindestens eine Reinigungseinrichtung umfasst, welche eingerichtet ist, die Gasaustrittsöffnungen von Verunreinigungen durch Feststoffpartikel aus der Suspension zu befreien. Die Erfindung betrifft weiterhin ein Verfahren zur Maximierung einer Begasungsleistung einer Begasungseinrichtung zum Begasen einer Suspension, wobei die Begasungseinrichtung mindestens einen Gasverteiler umfasst, der Gasaustrittsöffnungen mit einem maximalen Öffnungsdurchmesser von etwa 15 mm aufweist, und weiterhin mindestens eine Gasversorgungsleitung umfasst, über welche die Begasungseinrichtung mit Gas versorgt wird, das über die Gasaustrittsöffnungen der Suspension zugeführt wird.

165 VORRICHTUNG ZUR KLÄRUNG VON ABWASSER, VORZUGSWEISE AUF SCHIFFEN EP10715702.6 2010-04-19 EP2424820A1 2012-03-07 HAMANN, Knud
The invention relates to a device for clarifying wastewater, preferably on ships, having the following features: a tank (10) for raw water connected to a pressure vessel (16) by means of a macerator (12) and a feed pump (14); the pressure vessel (16) is connected to a source of compressed air such that the raw water in the tank is saturated with air; the pressure vessel (16) is connected by means of a line to an expansion tank (26) in which floatation tailings and clarified water are separated from each other; an expansion valve (26b) is connected in the line, and a metering pump (28) for coagulating agents is connected to the line between the expansion valve (26b) and the expansion tank (26).
166 INJECTOR FOR FLOTATION CELL EP08736812.2 2008-04-03 EP2129828A1 2009-12-09 NIEMINEN, Erkka
An injector for a flotation cell, comprising a feed channel for feeding a fiber suspension flow to the flotation cell, a flow distribution element for distributing the fiber suspension flow fed to the injector into partial flows, a mixing apparatus for mixing air with the fiber suspension flow, and at least one air input point for sucking air to be mixed with the fiber suspension flow into the injector. The feed channel, the flow distribution element and the mixing apparatus are in the injector arranged with respect to one another such that a flow direction of the fiber suspension flow in the feed channel is substantially opposite to a flow direction of the fiber suspension flow through the flow distribution element and the mixing apparatus.
167 Methods and devices for producing biomolecules EP08151209.7 2008-02-08 EP2088196A1 2009-08-12 Urthaler, Jochen; Ascher, Christine; Bucheli, Daniel

A scalable process and device for producing a biomolecule, in particular pharmaceutical grade plasmid DNA is described. The process includes the steps of alkaline lysis, neutralization and clarification and can be further extended. For separating the lysate and the precipitate an improved floatation method is disclosed. This method is based on attachment of CO2 bubbles on the precipitate floc. The CO2 is released from a carbonate salt during or after neutralization (acidification). The method of the invention is preferably carried out in an automated continuous mode applying devices for lysis and neutralization and a novel device for completely continuous clarification (separation of flocs and clarified lysate).

168 Säulenflotationseinrichtung EP09000001.9 2009-01-01 EP2077160A1 2009-07-08 Krieger, Uwe, Dr.; Schwarz, Bernhard; Römer, Michael; Janus, Karl-Heinz; Mauer, Gregor; Sommer, Falk

Bei einer Säulenflotationseinrichtung mit zumindest zwei übereinander angeordneten Flotationsstufen (10,20,30), die jeweils durch eine in einen zentralen Flotationskamin (18,28,38) mündende und nach außen abwärts geneigte Strömungsleitkontur (14,24,34) voneinander getrennt sind, wird erfindungsgemäß vorgeschlagen, daß die Strömungsleitkontur (14,24,34) aus einem flexiblen Material besteht.

Vorzugsweise ist die Strömungsleitkontur in ihrer Neigungsrichtung mechanisch vorgespannt (52,54,56).

Eine solche Säulenflotationseinrichtung ist sehr wartungsarm und langlebig, weil Verschmutzungen und Anhaftungen an den flexiblen Strömungsleitkonturen durch Bewegungs- bzw. Schwingungsinduzierungen leicht vermieden werden können.

169 THREE ZONE DISSOLVED AIR FLOTATION CLARIFIER WITH IMPROVED EFFICIENCY EP97924519.8 1997-04-25 EP0971856B1 2006-01-25 KROFTA, Milos
A compact dissolved-air-flotation (DAF) clarifier and clarification process utilize three zones for clarification which operate in sequence in a single clarifier. Raw water with suspended solids enters a flocculator at the center of an annular tank where microscopic air bubbles introduced to the inflow float flocked contaminants to form a floating sludge layer. A first clarification, calming and degassing occur here. The water then flows radially outwardly into the tank where further quiet clarification occurs. A third level of clarification occurs in a lower portion of the tank, specifically, in a set of plate-like lamellae, radial and conical, which form inclined channels where a final clarification occurs. The bottom wall of the tank has a set of apertures which allow a gravity flow of clarified water through a layer of pressurized gas to an underlying collection compartment. Level sensors control a valve in the clarified outflow line and an air bleed from the pressurized gas layer to regulate liquid levels in the clarifier. A set of rotating paddles push the sludge layer up a ramp to an inclined discharge conduit. Alternatively, a suction head with a mechanical skimmer sweeps around the tank to draw the sludge through a central hollow pipe to a discharge conduit. An offset drive operating through a belt rotates the sludge removal mechanism and the lamellae.
170 METHOD AND APPARATUS FOR SUPPLYING AND SEPARATING RECOVERING LIQUID COOLANT FOR CUTTING MACHINES AND GRINDING MACHINES EP97902667 1997-02-12 EP0881033A4 2001-05-23 NAKAI YOSHIKAZU
A method and apparatus for feeding coolant liquid to a lathe with a nozzle (53) having a discharge port (58) of substantially rectangular cross section and a constricted curved surface portion (62) on its inner wall to produce a turbulent flow and a loosely mounted tongue piece (59) crossing the section of the discharge port and projecting outside the port. The coolant is thus discharged as a collection of particulate turbulent flows containing air bubbles drawn into the coolant liquid as it passes by the tongue piece. The coolant is caused to impinge on the rotating peripheral surface (56) which is continuous with the region of the workpiece in contact with the cutter (57).
171 THREE ZONE DISSOLVED AIR FLOTATION CLARIFIER WITH IMPROVED EFFICIENCY EP97924519.8 1997-04-25 EP0971856A1 2000-01-19 KROFTA, Milos
A compact dissolved-air-flotation (DAF) clarifier and clarification process utilize three zones for clarification which operate in sequence in a single clarifier. Raw water with suspended solids enters a flocculator at the center of an annular tank where microscopic air bubbles introduced to the inflow float flocked contaminants to form a floating sludge layer. A first clarification, calming and degassing occur here. The water then flows radially outwardly into the tank where further quiet clarification occurs. A third level of clarification occurs in a lower portion of the tank, specifically, in a set of plate-like lamellae, radial and conical, which form inclined channels where a final clarification occurs. The bottom wall of the tank has a set of apertures which allow a gravity flow of clarified water through a layer of pressurized gas to an underlying collection compartment. Level sensors control a valve in the clarified outflow line and an air bleed from the pressurized gas layer to regulate liquid levels in the clarifier. A set of rotating paddles push the sludge layer up a ramp to an inclined discharge conduit. Alternatively, a suction head with a mechanical skimmer sweeps around the tank to draw the sludge through a central hollow pipe to a discharge conduit. An offset drive operating through a belt rotates the sludge removal mechanism and the lamellae.
172 SPARGER SYSTEM INCLUDING JET STREAM AERATOR EP97916724.0 1997-03-05 EP0885067A1 1998-12-23 McKAY, Jeffrey, D.; YNCHAUSTI, Randy, D.; KEYSER, Paul, M.
A sparging system assembly (20) having an improved nozzle (24) for use in a flotation separation vessel or aeration device, for example, column (10). The sparging system assembly (20) of the present invention uses an elastomeric and resilient dick bill type check valve nozzle (24) to form the desired size of flotation bubbles in the vessel. The system further comprises an installation configuration and valving arrangement for the easy, efficient replacement of any worn or damaged elastomeric check valve type nozzle (24) during the operation of the flotation separation vessel or aeration device.
173 Flotation device with foam sucking means EP94200443.3 1994-02-22 EP0613725A2 1994-09-07 Velo, Antonio

A flotation device for the suction of floated masses comprising a first inner tub (12) vertically arranged and communicating at the bottom with a second outer tub (26) which surrounds the first tub (12) and operates as a manifold for clarified liquid, the second tub communicating with a collector resevoir (34) for clarified liquid. At the middle of the first tub (12), the flotation device bears a column (40) extending above an upper edge of the inner tub (12) and sustaining a support (42) for a motorized arm (50) which can be oriented and ending with a suction hood (54) which can also be oriented by driving means (66) arranged on the arm (50); the column (40), the arm (50) and the suction hood (50) being hollow, connected among them and to a pipe (68) for the draining of floated particles. The pipe (68) is connected to a reverseble volumetric pump (70) which provides both for the removal of the floated particles and for the inlet of washing water in order to carry out periodic cleaning of the same flotation device.

174 IMPROVED WATER CLARIFYING APPARATUS EP90911087.0 1990-06-04 EP0532494A1 1993-03-24 KROFTA, Milos
Water clarifying apparatus has a cylindrical tank where particulate contaminants suspended in raw water are separated using flotation techniques. A set of concentric mutually spaced, conical plates are positioned in the flotation tank. The plates rotate about the tank, preferably in unison with a (i) header that distributes equal quantities of raw water to each annular zone in the tank defined by the conical plates and (ii) a scoop for removing the contaminants which form a floated sludge layer. A screw conveyor is located in a discharge pipe of the floated sludge scoop. A infrared sludge detection array in a window in the side wall of the tank senses the sludge-water interface. Air dissolving tubes operating in parallel have common feeds and discharges coupled through three way valves operated to pressurize a closed volume of water with high pressure air in one tube while reloading and discharging the other tube.
175 Apparatus for continuous purification of liquids EP91101996.6 1991-02-13 EP0442463A1 1991-08-21 Perletti, Fabio

The apparatus for the continuous clarifying of liquids containing suspended solid substances comprises a flotation cell (1) with a liquid head height of less than 1 meter, with a ratio between the liquid head and the cell diameter comprised between 0.25 and 0.05. The cell (1) has a bottom axial inlet (2) for liquid to be clarified, supersaturated with gas, so as to generate an axial ascending current of the liquid to be clarified with radial divarication toward the surface of the liquid head. A framework (20) associated with the cell (1) rotates concentrically with respect thereto and supports a spillway unit (30-32) for collecting the flotated layer and a scraper unit (50-53) which affects all the wet surfaces of the cell (1). A discharge outlet (60) is furthermore provided in the lower part of the cell (1) for the outflow of clarified liquid which falls toward the bottom of the cell (1).

176 Method of and means for hydrodynamic mixing EP87630145.8 1987-08-11 EP0256965B1 1990-11-22 Fredriksson, Borje c/o Nils Fredriksson; Chamberlin, Jeffrey Loel
177 VORRICHTUNG ZUM BELÜFTEN EP85901439.1 1985-03-30 EP0211834B1 1988-12-28 BARNSCHEIDT, Wolfgang; VON BORRIES, Horst; RAUTENBACH, Robert; SCHIFFERMÜLLER, August; ZIMMERMANN, Hubert; LAMORT, Jean-Pierre
The aeration of dispersions, particularly the aeration of suspensions of fibre materials in a floating installation (1) is effected by means of a ring injector (2) to which air is supplied through air supply channels (11) up to the mixture line (4). The ring-shaped slot which is formed in the ring injector (2) is thus aerated inside and outside. The middle piece (7) which is tapered in the direction of the largest free cross-section (Q4) of the ring injector (2) is provided with a fin (56) preventing the rotation of the dispersion.
178 Verfahren und Vorrichtung zum Flotieren von Dispersionen EP85102085.9 1985-02-26 EP0157163A1 1985-10-09 Barnscheidt, Wolfgang, Dr. Dipl.-Ing. u.Dipl.-Phys

Beim Deinken erfolgt das Flotieren von Faserstoffsuspensionen in einem zylindrischen Behälter 2, dem über einem Anschluß 36 als Primärstrom die Faserstoffsuspension zugeführt wird. Die Faserstoffsuspension ist bereits belüftet und wird unterhalb des Anschlusses 36 über einen Absaugstutzen 33 abgezogen und oberhalb des Anschlusses 36 über einen Sekundärstutzen 35 nach erneuter Belüftung zugeführt. Das Volumen des im Kreislauf geführten Sekundärstromes ist größer als das Volumen des Primärstromes. Dadurch ist sichergestellt, daß die Faserstoffsuspension mindestens zweimal belüftet und damit besser gereinigt wird.

179 Froth flotation apparatus and method EP83301218 1983-03-07 EP0096952A3 1984-10-17 Cruea, Ronald D.; Markham, Larry D.; Hatton, Derald R.; Kile, Gregory D.

A froth flotation apparatus for elimination of solid particle impurities contained within a liquid includes a sparger (42) naving a substantially cylindrical porous element (46) mounted on a tubular shaft (48) which is rotatably mounted within the inlet conduit (20) of the apparatus and driven by a motor. Compressed air is forced through the porous element to aerate fluid entering the apparatus.

180 Froth flotation apparatus and method EP83301218.0 1983-03-07 EP0096952A2 1983-12-28 Cruea, Ronald D.; Markham, Larry D.; Hatton, Derald R.; Kile, Gregory D.

A froth flotation apparatus for elimination of solid particle impurities contained within a liquid includes a sparger (42) naving a substantially cylindrical porous element (46) mounted on a tubular shaft (48) which is rotatably mounted within the inlet conduit (20) of the apparatus and driven by a motor. Compressed air is forced through the porous element to aerate fluid entering the apparatus.

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