序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
261 Vorrichtung und Verfahren zum Schwimm-Sink Trennen von Feststoffteilchen unterschiedlicher Dichte EP08015886.8 2004-07-20 EP2033713B1 2012-09-12 Lindner, Wolfgang, Dr.
262 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.
263 DISSIMILAR MATERIALS SORTING PROCESS, SYSTEM AND APPARATUS EP06836531.1 2006-10-24 EP1960111A2 2008-08-27 Valerio, Thomas
An automated system for sorting dissimilar materials, and in particular for sorting plastics from other materials and for sorting different types of plastics from one another comprises, depending upon the embodiment, combinations of a sizing mechanism, a friction separation, an air separator, a magnetic separator, a dielectric sensor sortation bed, shaker screening, a ballistic separator, an inductive sensor sortation system and a float/sink tank. The dielectric sensor sortation system may be either analog or digital, depending upon the particular implementation. One or more float/sink tanks can be used, depending upon the embodiment, each with a media of a different specific gravity. The media may be water, or water plus a compound such as calcium chloride. In addition, multiples of the same general type of module can be used for particular configurations. A heavy media system or a sand float process can be used either alternatively or additionally.
264 Systems and methods for sorting recyclables at a material recovery facility EP05254328.7 2005-07-11 EP1616637A3 2006-03-08 Bohlig, James W.; Duffy, Sean P.

Systems and methods for providing a quantity of cullet having at least two colors of glass from an input stream of recyclable material and non-recyclable material. In an embodiment, the system includes a sortation station, a screening apparatus, an air classifier, and a crushing apparatus to provide as output substantially pure cullet having at least two colors.

265 Vorrichtung zum Abtrennen von organischem Material von anorganischem Material EP04021875.2 2004-09-15 EP1516672A1 2005-03-23 Branner, Wolfgang

Eine Vorrichtung zum Abtrennen von organischem Material von anorganischem Material, insbesondere von organisch verschmutztem Sand von Kläranlagen, besitzt einen Behälter (1), der in seinem oberen Bereich eine Beschickungseinrichtung (4) für die Einleitung des verschmutzten anorganischen Materials in den Behälter (1) aufweist, eine im unteren Bereich des Behälters (1) angeordneten Abzugseinrichtung (24) für das abgetrennte anorganische Material, eine Einrichtung (7) zur Abfuhr des organischen Materials und eine Zufuhreinrichtung (9) für Waschwasser im unteren Bereich des Behälters (1). Oberhalb der Zufuhreinrichtung (9) für Waschwasser im Behälter (1) erfolgt die Trennung des organischen Materials von dem anorganischen Material in einer fluidisierten Schicht (22). Es ist eine im Bereich der fluidisierten Schicht (22) wirksame Hebevorrichtung (21) vorgesehen. Die Zufuhreinrichtung (9) für das Waschwasser im unteren Bereich des Behälters (1) und die Hebevorrichtung (21) sind so aufeinander abgestimmt, dass sie im Betrieb zusammen die fluidisierte Schicht (22) erzeugen.

266 Method for reblending sand EP01308888.5 2001-10-19 EP1245287A3 2004-02-04 Soldwish-Zoole, Trenton L.; Squires, Franklin E.

A method of reblending sand in a classification tank (10) having multiple stations (14A-J) and discharge valves (16A-C) within each station includes the steps of delivering sand to the tank (10); calibrating the tank to analyze the raw feed material and develop discharge rates, flow multipliers, and a mathematical model of the tank; and inputting a specification or quantity and sieve size distribution for a reblended sand product into a computer (20) for controlling the tank (10). Then the tank (10) is operated in a production mode and the discharge valves (16A-C) at each station of the tank (10) are adjusted by the computer (20) for percent open time and discharge rate. With one algorithm, the computer (20) identifies which station (14A-J) has the most of a sieve size that is out of specification and diverts material at that station by closing the appropriate discharge valve(s) (16A-C). In another algorithm especially adapted to minimize fines, the computer (20) begins with the station (14A-J) most remote from the inlet and diverts material by repeatedly reducing the valve (16A-C) open percentage of the appropriate valve (16A-C) at that station (14A-J) by a given amount until the specification is met or the valve (16A-C) is always closed. Once the valve (16A-C) is always closed, the computer (20) moves a station (14A-J) closer to the inlet and repeats the process. Once a primary product is being produced to specification, the same algorithm can be used to control the production of a secondary product.

267 FLOTATION MACHINE AND METHOD FOR IMPROVING FLOTATION EFFECT EP00987510.5 2000-12-13 EP1259328A1 2002-11-27 SCHOMMARZ, Klaus
The invention relates to a flotation machine and method for improving flotation effect in the flotation machine which is provided with members for feeding material (11, 51) to be treated in the flotation machine, members for removing the treated material out of the flotation machine at least in the upper part (12, 52) of the flotation machine and in the bottom part (17, 57) of the flotation machine, a mixing mechanism (16, 46) comprising a stator (8, 48) and a rotor (7, 47) located inside the machine, air supply means (9, 49) for supplying air to the mixing mechanism and forming a froth bed (14, 45) in the upper part of the flotation machine, at least one member (13, 53) for adjusting free space of the froth bed created in the flotation machine. According to the invention a conducting member (15, 21, 55) is installed inside the flotation machine in order to add flowing material for slurry dilution in the slurry area essentially above the top part of the rotor (7, 47), but below the froth zone (14, 54).
268 ARRANGEMENT FOR MEASURING CONCENTRATE FLOW IN CONNECTION WITH A FLOTATION CELL EP00938851.3 2000-06-20 EP1190219A1 2002-03-27 SAASTAMOINEN, Eljas; FORSS, Mikael
An arrangement for measuring material flow, particularly concentrate flow, in connection with a flotation cell. The arrangement comprises an elongate sensor element (1) extending essentially over the whole transversal area of the material flow to be measured, and a measuring device (2) for detecting the position of the sensor element (1).
269 Verfahren und Vorrichtung zum kontinuierlichen Trennen von in einer Stoffsuspension enthaltenen erwünschten von unerwünschten Stoffen EP94117139.9 1994-10-29 EP0658648B1 2000-01-12 Schultz, Hans-Joachim, Dr.
270 BEGASUNGS-/FLOTATIONS-REAKTOR MIT ANORDNUNGEN ZUR ABTRENNUNG VON FESTSTOFFEN AUS FLÜSSIGKEITEN EP95929744.1 1995-09-01 EP0779840B1 1998-10-21 OVERATH, Horst
A gas entrainment/flotation reactor has a supply pipe (1) that opens into a preliminary chamber (3). A riser pipe (7) is joined to the preliminary chamber (3) and surmounted by a foam skimming pipe (9). A foam collecting device (10) is joined to the upper end of the foam skimming pipe (9) while the lower end of the latter opens into the lower area of a tubular casing (12). The upper end of the tubular casing (12) has at least one liquid outlet (27). The object of the invention is to develop a device of this type with which solids may also be removed from the liquids to be cleaned, and which is provided with regulating means (20) for cleaning the installation. In order to remove solids, the preliminary chamber (3) has a cylindrical bottom part (I) and a cap (II) shaped as a truncated cone set on the bottom part (I). In addition, the supply pipe (1) opens tangentially into the bottom part (I). Alternatively or additionally, the tubular casing (12) is enveloped by one or several filtering chambers (15).
271 VERFAHREN UND VORRICHTUNG ZUM ABSCHEIDEN VON SAND AUS MIT SAND UND ORGANISCHEN STOFFEN BELADENEM ABWASSER EP94922789.6 1994-08-05 EP0713418B1 1998-10-21 ZIERLER, Franz
A process and device are disclosed for removing sand from water loaded with sand and organic substances. The water is made to swirl in a standing container, so that the organic substances are moved upwards to an overflow (13) whereas the sand sinks downwards to a discharging conveyor (3) connected to the bottom of the container and is only discharged after a settling time. In order to achieve a substantial separation of sand and organic substances, the settled sand is agitated by an agitator mechanism (4) at the same time as it is rinsed with fresh water supplied to the bottom area of the container (1) and is only discharged in an amount such that a predetermined minimum height of the settled sand (18) is ensured.
272 A method and plant for the screening of especially stone material EP94610011.2 1994-03-01 EP0613723B1 1998-08-05 Kvejborg, Jens Erik
273 BEGASUNGS-/FLOTATIONS-REAKTOR MIT ANORDNUNGEN ZUR ABTRENNUNG VON FESTSTOFFEN AUS FLÜSSIGKEITEN EP95929744.0 1995-09-01 EP0779840A1 1997-06-25 OVERATH, Horst
A gas entrainment/flotation reactor has a supply pipe (1) that opens into a preliminary chamber (3). A riser pipe (7) is joined to the preliminary chamber (3) and surmounted by a foam skimming pipe (9). A foam collecting device (10) is joined to the upper end of the foam skimming pipe (9) while the lower end of the latter opens into the lower area of a tubular casing (12). The upper end of the tubular casing (12) has at least one liquid outlet (27). The object of the invention is to develop a device of this type with which solids may also be removed from the liquids to be cleaned, and which is provided with regulating means (20) for cleaning the installation. In order to remove solids, the preliminary chamber (3) has a cylindrical bottom part (I) and a cap (II) shaped as a truncated cone set on the bottom part (I). In addition, the supply pipe (1) opens tangentially into the bottom part (I). Alternatively or additionally, the tubular casing (12) is enveloped by one or several filtering chambers (15).
274 VERFAHREN UND VORRICHTUNG ZUM ABSCHEIDEN VON SAND AUS MIT SAND UND ORGANISCHEN STOFFEN BELADENEM ABWASSER EP94922789.0 1994-08-05 EP0713418A1 1996-05-29 ZIERLER, Franz
A process and device are disclosed for removing sand from water loaded with sand and organic substances. The water is made to swirl in a standing container, so that the organic substances are moved upwards to an overflow (13) whereas the sand sinks downwards to a discharging conveyor (3) connected to the bottom of the container and is only discharged after a settling time. In order to achieve a substantial separation of sand and organic substances, the settled sand is agitated by an agitator mechanism (4) at the same time as it is rinsed with fresh water supplied to the bottom area of the container (1) and is only discharged in an amount such that a predetermined minimum height of the settled sand (18) is ensured.
275 Pressurized, sparged flotation column EP95307671.8 1995-10-27 EP0709121A2 1996-05-01 Hubred, Gale L.

A method for removing residual oil from oily water under pressure is provided. The method comprises flowing a liquid stream of an oily water downward through a vertically extended zone to remove the residual oil. A gas is injected into the lower end of the zone and at a rate sufficient to generate bubbles of a predetermined volume in the liquid stream. A sufficient pressure is maintained in the zone to control the rate of expansion of the bubbles to a volume compatible with oil droplets in the liquid stream during upward migration of the bubbles and the oil droplets. The rate of flow of the liquid stream from the lower end of the zone and the rate of flow of the gas from the upper end of the zone are regulated to collect residual oil from a quiescent volume within the upper portion of the zone.

276 Verfahren zur Wiederverwertung von in der zementverarbeitenden Industrie anfallenden Produktionsresten und Vorrichtung zur Durchführung des Verfahrens EP95112662.2 1995-08-11 EP0700726A1 1996-03-13 Fritz, Alexander

Bei der Wiederverwertung von in der zementverarbeitenden Industrie, insbesondere in Betonwerken, anfallenden Produktionsreste, werden diese zunächst in Grobmaterial und Restschlamm getrennt und zumindest letzterer dem Produktionsprozeß wieder zugeführt. Vor einer Einleitung in eine Mischanlage (10) wird zumindest die Dichte und die Masse des der Mischanlage (10) durch eine Leitung (9) hindurch zugeführten Restschlammes in einer Meßstrecke (11) der Leitung (9) gemessen und daraus der Feststoffanteil ermittelt.

277 Verfahren und Vorrichtung zum kontinuierlichen Trennen von in einer Stoffsuspension enthaltenen erwünschten von unerwünschten Stoffen EP94117139.9 1994-10-29 EP0658648A3 1996-02-07 Schultz, Hans-Joachim, Dr.

Die Erfindung betrifft ein Verfahren zum kontinuierlichen Trennen von in einer Stoffsuspension enthaltenen erwünschten von unerwünschten Stoffen, z.B. zum kontinuierlichen Reinigen einer für die Herstellung von Papier, Pappe und dgl. auf einer Papiermaschine bestimmten Fasersuspension, bei dem ein Zulaufstrom der Fasersuspension in einen Verteilbereich geleitet und dort in eine Anzahl wenigstens annähernd gleicher Teilströme aufgeteilt wird, diese Teilströme sodann je für sich einen Reinigungsvorgang durchlaufen, wobei aus den Teilströmen durch einen auf der Ausnutzung der Fliehkraft beruhenden Trennvorgang ein die erwünschten Stoffe enthaltender Gutstoffstrom und ein die unerwünschten Stoffe enthaltender Schlechtstoffstrom ("Spuckstoff") gebildet wird und anschließend die Gutstoffströme und die Schlechtstoffströme in je einem Sammelbereich vereinigt werden.

Die Erfindung ist dadurch gekennzeichnet, daß die Aufteilung des Zulaufstromes der Stoffsuspension in Teilströme für alle Teilströme gleichzeitig vorgenommen und dabei schwingungsdämpfend auf die Stoffsuspension eingewirkt wird.

278 IMPROVED WATER CLARIFYING APPARATUS EP90911087.6 1990-06-04 EP0532494B1 1995-07-19 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.
279 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.
280 LAMELLAR APPARATUS AND METHOD FOR CLARIFYING WATER EP93913921.0 1993-05-17 EP0641291A1 1995-03-08 KROFTA, Milos
A tank (12) receives raw water for clarification by flotation. An array of lamellae (28) define a set of generally vertically oriented channels (30) with solid sidewalls. Flotation occurs in each channel. The channels are preferably inclined. With a round tank, a frame rotates an interlocking array of radial (28r) and concentric (28c) lamellae. A stationary raw water inlet distribution box (18) fills the channels with raw treated water. An aligned clarified water collection box withdraws clarified water. A stationary skimmer (42) directs floating sludge to a removal conduit (50) with a variable pitch screw conveyor. Sliding seals on the lamellae isolate individual channels or groups of channels as they move through the tank. The channels lock and move columns of water through the tank with substantially no turbulence.
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