EP0965375B1 - Device for removing solid matter from a mixture of liquid and solid matter - Google Patents

Device for removing solid matter from a mixture of liquid and solid matter Download PDF

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Publication number
EP0965375B1
EP0965375B1 EP99810530A EP99810530A EP0965375B1 EP 0965375 B1 EP0965375 B1 EP 0965375B1 EP 99810530 A EP99810530 A EP 99810530A EP 99810530 A EP99810530 A EP 99810530A EP 0965375 B1 EP0965375 B1 EP 0965375B1
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EP
European Patent Office
Prior art keywords
sump
container
wall
liquid
pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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EP99810530A
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German (de)
French (fr)
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EP0965375A1 (en
Inventor
Giorgio Morandini
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Oekag AG fur Angewandte Oekologie
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Oekag AG fur Angewandte Oekologie
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/62—Washing granular, powdered or lumpy materials; Wet separating by hydraulic classifiers, e.g. of launder, tank, spiral or helical chute concentrator type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
    • B04C3/06—Construction of inlets or outlets to the vortex chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/02—Construction of inlets by which the vortex flow is generated, e.g. tangential admission, the fluid flow being forced to follow a downward path by spirally wound bulkheads, or with slightly downwardly-directed tangential admission
    • B04C5/04—Tangential inlets

Definitions

  • the subject is a device for separating the Solids from liquid-solid mixtures according to Preamble of claim 1 as e.g. from the Document EP-A-0 448 282 is known.
  • the known devices have the disadvantage that solids settle on the container walls and consequently the entire container has to be emptied and cleaned from time to time. Mixing of the liquid collected in the container is more or less random.
  • Very elaborate, sophisticated dirt separating devices are also already known, in which the liquid loaded with solids is guided through different chambers or chamber parts of a container.
  • these known devices are only suitable for pressurized containers, but not for those that work in principle without pressure, as is usually the case with rain water systems. Their construction is also expensive to manufacture and maintain.
  • the object of the present invention is to create a device that requires little technical effort causes a high degree of cleaning.
  • a spiral rib is formed at the bottom of the container and the sedimentation area is designed as a sump.
  • the removal of the liquid freed from solids takes place radially outside the sedimentation area and is also protected behind a spiral rib.
  • a cylindrical tube with an inserted base or a conical or spherical hollow body can be used as a container.
  • the container with the channel is inserted into a space that is many times larger, and the process water is led out of the container through one or more openings in the base area.
  • the larger room can be an existing tank.
  • Another particularly advantageous and inexpensive embodiment of the invention comprises, instead of the V-shaped channel, a helically guided pipe along the wall of the container, which has outlet openings for the water at intervals in the apex, that is to say is formed in sections as a semicircular channel.
  • the device for separating solids from Liquid-solid mixtures include one Separation tank, called tank 1 for short, with a wall 3.
  • the container 1 has one cylindrical wall 3.
  • the wall 3 could be conical downwards, i.e. the Container 1 could be an upside down truncated cone or at least the wall could be below be hemispherical.
  • Container 1 is below closed by a bottom 5, in the center of which Swamp 7 is formed, which is also a cylindrical or have a conical or hemispherical shape can.
  • the container 1 can be made of plastic, metal or Be made of concrete.
  • An inlet line 9 opens tangentially into the upper region of the container 1.
  • a helical guide means in the form of a continuously narrowing channel 13 connects to the front end 11 of the inlet line 9.
  • the channel 13 is designed as an L-shaped profile, with a leg extending at an acute angle to the wall 3 and a horizontal leg which is connected to the wall 3 of the container 1, for example welded or glued.
  • the channel 13 extends over at least an angular range of 90 ° and ends at the height h 2 .
  • the width of the channel 13 is preferably continuously decreasing.
  • the end of the channel 13 is therefore below the mouth of the line 9, which is at the height h 3 .
  • the gutter 13 can also have a U-shaped shape like a gutter. In any case, it is intended to ensure that the liquid leaving the channel 13 at its end continues to flow on the wall 3.
  • the centrally arranged sump 7 extends over a range of approximately 180 degrees or more rib 15 extending in a spiral shape and protruding from the bottom 5.
  • the part closest to the axis A of the container 1 the rib 15 is located in the outer surface of the wall of the swamp 7 and extends from there with increasing Distance and preferably increasing height spiraling from the axis A over half the circumference of the container 1.
  • a sludge suction line 17 leads out of the sump 7 out of the container 1.
  • the sludge suction line 17 can protrude centrally into the sump 7, lead upwards and be closed by a valve 19.
  • the line 17 can also lead from the sump 7 downwards (not shown) or laterally.
  • the suction line 17 can be connected to a pump, not shown, if the drain cannot take place on a slope.
  • an overflow line 22 can lead out of the sump 7, the outflow 24 of which ends at the level h 3 . As soon as the container 1 is full, an outflow via the line 22 begins and at the same time the sludge is removed from the sump 7.
  • a liquid removal line 23 ends at a short distance from the bottom 5, with which the liquid freed from solids can be sucked off.
  • the end of the extraction line 23 is preferably provided with a strainer 25. On the one hand, this prevents solid bodies from being sucked in, and on the other hand this increases the suction area and reduces the build-up of a suction flow directed towards the end of the removal line 23.
  • the end of the extraction line 23 or the strainer 25 is below the minimum filling height h 1 .
  • the container 1 is within a volume much larger space or tanks 31 used.
  • the sendiments remain in the sump 7 of the container 1 and can this be removed periodically.
  • the trough 13 is through a tube 35 formed, the helical along the wall 3rd is led.
  • apex S that is Cut pipe 35 at intervals so that openings 37 arise through which the sediment-free water emerges can, if the water level in tank 1 rises and exceeds the lower pipe end.
  • the tube 35 ends on the Container bottom 5.
  • the inflowing liquid for example rainwater from roofs and squares, flows through line 9 into container 1 and reaches wall 3 of container 1 via inclined channel 13 and with increasing flow velocity.
  • the higher the flow velocity of the liquid the greater
  • the amount of liquid introduced causes the entire contents of the container to rotate in a clockwise direction. The greater the inflow and the smaller the liquid level in container 1, the greater the rotational speed.
  • the constant circulation of the container contents improves the quality of the liquid and the shelf life.
  • Solids which settle on the bottom (bottom 5) of the container 1 are successively conveyed to the center by the rib 15 and reach the sump 7. Swirling within the sump 7 no longer takes place and the solids can pass through the sludge discharge line 17 and / or the overflow line 22 can be removed from the sump 7.
  • the solids can be removed from the sump 7 continuously or periodically.
  • the solids are always removed when the container overflows.
  • the situation is similar in the case of the tubular trough in FIGS. 9 to 11.
  • the liquid that flows in flows downward with increasing speed and can be removed near the ground, separately from the solids.
  • the sediment-free liquid exits through the opening 37 closest to the surface; the sediments slide down tube 35 further down into the sump 7.
  • the liquid, essentially freed from solids, is removed through the liquid removal line 23. The removal is possible continuously or periodically.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Sewage (AREA)
  • Cyclones (AREA)
  • Centrifugal Separators (AREA)

Abstract

At the tangential outlet (11) of the supply line (9) leading into the separating vessel (1), there is a downward spiral guide (13) running along the wall (3). On the base (5) a rib (15) spirals into the sump (7). Preferred Features: The spiral guide is a channel or pipe, its width decreasing continuously. The sludge extraction line (17) opens into the center or periphery of the sump. The sump spiral rib tapers down, ending at the edge of the sump. The vessel is situated in a larger, round or polygonal tank. Service water enters the tank at openings in the vessel wall. The liquid extraction line ends in a strainer near the base of the vessel, between spiral ridge and tank wall. An overflow pipe rises from the sump to the inlet height (h3)

Description

Gegenstand ist eine Vorrichtung zum Separieren der Feststoffe aus Flüssigkeits-Feststoffgemischen gemäss Oberbegriff des Patentanspruches 1, wie sie z.B. aus der Schrift EP-A-0 448 282 bekannt ist.The subject is a device for separating the Solids from liquid-solid mixtures according to Preamble of claim 1 as e.g. from the Document EP-A-0 448 282 is known.

Damit Feststoffe aus Flüssigkeits-Feststoffgemischen getrennt werden können, ist es bereits bekannt, in den Behältern Beruhigungs- und Lenkvorrichtungen anzubringen. Zu diesem Zweck werden unter anderem Tauchrohre mit unteren Umlenkbögen oder Schikanen eingesetzt, welche eine gute Durchmischung des stehenden Wassers mit dem Frischzulauf ohne Aufwirbelung der Sedimente gewährleisten. Bei geringem Flüssigkeitsstand im Tank werden trotzdem und zwangsläufig die auf dem Behälterboden sedimentierten Feststoffe aufgewirbelt und über die Entnahmevorrichtung für gereinigte Flüssigkeit angesaugt. Um dies zu vermeiden, werden die Saugstutzen der Saugleitungen höher gesetzt und dadurch die unteren Bereiche des Behälters nicht genutzt. Dieses verlorene Nutzvolumen kann nicht zurückgewonnen werden. Es ist weiter bekannt, schwimmende Ansaugleitungen zu verwenden, um stets im Bereich der Flüssigkeitsoberfläche Flüssigkeit absaugen zu können. Weiter haben die bekannten Vorrichtungen den Nachteil, dass sich an den Behälterwandungen Feststoffe absetzen und folglich von Zeit zu Zeit der gesamte Behälter entleert und gereinigt werden muss. Eine Durchmischung der im Behälter gesammelten Flüssigkeit erfolgt mehr oder weniger zufällig.
Es sind auch bereits sehr aufwendige ausgeklügelte Schmutzausscheidevorrichtungen bekannt, bei denen die mit Festkörpern beladene Flüssigkeit durch verschiedene Kammern oder Kammerteile eines Behälters geführt werden. Diese bekannten Vorrichtungen eignen sich jedoch nur für unter Druck stehende Behälter, nicht jedoch für solche, die im Prinzip drucklos arbeiten, wie dies üblicherweise bei Regenbrauchwasseranlagen der Fall ist. Deren Aufbau ist zudem teuer in der Herstellung und im Unterhalt.So that solids can be separated from liquid-solid mixtures, it is already known to mount calming and steering devices in the containers. For this purpose, dip tubes with lower deflection bends or chicanes are used, among other things, which ensure good mixing of the standing water with the fresh inlet without swirling up the sediments. If the liquid level in the tank is low, the solids sedimented on the bottom of the tank are still and inevitably whirled up and sucked in via the removal device for cleaned liquid. To avoid this, the suction ports of the suction lines are set higher and therefore the lower areas of the container are not used. This lost usable volume cannot be recovered. It is also known to use floating suction lines so that liquid can always be sucked off in the area of the liquid surface. Furthermore, the known devices have the disadvantage that solids settle on the container walls and consequently the entire container has to be emptied and cleaned from time to time. Mixing of the liquid collected in the container is more or less random.
Very elaborate, sophisticated dirt separating devices are also already known, in which the liquid loaded with solids is guided through different chambers or chamber parts of a container. However, these known devices are only suitable for pressurized containers, but not for those that work in principle without pressure, as is usually the case with rain water systems. Their construction is also expensive to manufacture and maintain.

Die Aufgabe der vorliegenden Erfindung ist die Schaffung einer Vorrichtung, die mit geringem technischem Aufwand einen hohen Reinigungsgrad bewirkt.The object of the present invention is to create a device that requires little technical effort causes a high degree of cleaning.

Gelöst wird diese Aufgabe durch eine Vorrichtung mit den Merkmalen des Anspruches 1. Besonders vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Ansprüchen beschrieben. This problem is solved by a device with the Features of claim 1. Particularly advantageous Embodiments of the invention are in the dependent Described claims.

Es gelingt auf überraschende Weise, durch geeignete Zuführung der mit Feststoffen beladenen Flüssigkeit entlang der Wandung eines Behälters zu führen und die Feststoffe erst in Bodennähe ins Zentrum des Behälterbodens zu leiten und dort in einer Beruhigungszone zu sedimentieren. Um eine optimale Einleitung der Feststoffe in den Sedimentierbereich zu ermöglichen, ist am Boden des Behälters eine spiralförmig verlaufende Rippe ausgebildet und der Sedimentierbereich als Sumpf gestaltet. Die Entnahme der von Festkörpern befreiten Flüssigkeit erfolgt radial ausserhalb des Sedimentierbereichs und zudem geschützt hinter einer spiralförmigen Rippe. Als Behälter kann ein zylindrisches Rohr mit eingesetztem Boden oder ein konischer oder kugeliger Hohlkörper benutzt werden. Die offen geführte und stetig durchspülte Rinne mit vorzugsweise einer konisch verlaufenden Wand, welche die zugeführte Flüssigkeit entlang der Wandung führt, kann nicht verstopfen. Sie ist zudem stets optisch kontrollierbar und, falls notwendig, einfach zu reinigen. Es entstehen keine unkontrollierten Turbulenzen und Aufwirbelungen der sedimentierten Festkörper durch die eingeleitete Flüssigkeit, da diese nicht herunterstürzt, sondern nach dem Eintritt in den Behälter entlang der Wandung im wesentlichen laminar fliessend geführt wird. Die Entnahme der gereinigten Flüssigkeit in Bodennähe seitlich des tieferliegenden Sumpfs vergrössert das Nutzvolumen des Behälters und dadurch das Kosten-/Nutzenverhältnis. Durch die Zirkulation der Flüssigkeit auf dem Boden des Behälters werden sowohl der Seiher am Ende der Entnahmeleitung oder die seitlichen Ausflussöffnungen als auch der Boden des Behälters stets sauber gehalten. Es kann so nur sauberes Wasser abfliessen. Eine Reinigung ist nicht oder nur selten notwendig, denn die sedimentierten Stoffe aus der Flüssigkeit werden kontinuierlich in den Sumpf geleitet und können diesen nicht mehr verlassen. In einer weiteren vorteilhaften Ausgestaltung der Erfindung wird der Behälter mit der Rinne in einen um ein Vielfaches grösseren Raum eingesetzt und das Brauchwasser durch eine oder mehrere Öffnungen im Bodenbereich aus dem Behälter herausgeführt. Der grössere Raum kann ein bestehender Tank sein.
Eine weitere besonders vorteilhafte und kostengünstige Ausgestaltung der Erfindung umfasst anstelle der V-förmigen Rinne ein schraubenlinienförmig entlang der Wandung des Behälters geführtes Rohr, das in Abständen im Scheitel Austrittsöffnungen für das Wasser aufweist, d.h. abschnittweise als halbkreisförmige Rinne ausgebildet ist.It is surprisingly possible to guide the liquid loaded with solids along the wall of a container and to guide the solids only near the bottom into the center of the bottom of the container and to sediment there in a calming zone. In order to enable the solids to be optimally introduced into the sedimentation area, a spiral rib is formed at the bottom of the container and the sedimentation area is designed as a sump. The removal of the liquid freed from solids takes place radially outside the sedimentation area and is also protected behind a spiral rib. A cylindrical tube with an inserted base or a conical or spherical hollow body can be used as a container. The openly guided and continuously flushed channel, preferably with a conical wall, which guides the supplied liquid along the wall, cannot become blocked. It is also always visually controllable and, if necessary, easy to clean. There is no uncontrolled turbulence and whirling up of the sedimented solids by the introduced liquid, since the liquid does not fall down, but is guided along the wall in a substantially laminar flow after entering the container. The removal of the cleaned liquid near the bottom on the side of the lower sump increases the usable volume of the container and thereby the cost / benefit ratio. Due to the circulation of the liquid on the bottom of the container, both the strainer at the end of the extraction line or the lateral outflow openings and the bottom of the container are always kept clean. This means that only clean water can flow off. Cleaning is not or only rarely necessary because the sedimented substances from the liquid are continuously fed into the sump and can no longer leave it. In a further advantageous embodiment of the invention, the container with the channel is inserted into a space that is many times larger, and the process water is led out of the container through one or more openings in the base area. The larger room can be an existing tank.
Another particularly advantageous and inexpensive embodiment of the invention comprises, instead of the V-shaped channel, a helically guided pipe along the wall of the container, which has outlet openings for the water at intervals in the apex, that is to say is formed in sections as a semicircular channel.

Die Erfindung wird anhand illustrierter Ausführungsbeispiele näher erläutert. Es zeigen:

Figur 1
einen Querschnitt durch den Behälter längs Linie I-I in Figur 2,
Figur 2
einen Längsschnitt durch den Behälter längs Linie II-II in Figur 1 und
Figur 3
eine vergrösserte Darstellung des Querschnitts der Rinne im Schnitt II-II in Figur 1,
Figur 4
eine vergrösserte Darstellung der Rinne an deren auslaufseitigem Ende X,
Figur 5
einen Längsschnitt durch den Behälter in einer Ausführungsform mit einer seitlich aus dem Sumpf wegführenden Überlaufleitung,
Figur 6
einen Grundriss einer weiteren Ausgestaltung der Erfindung, bei der der Behälter innerhalb einem wesentlich grösserem eckigen Raum eingesetzt ist,
Figur 7
einen Grundriss einer weiteren Ausgestaltung der Erfindung, bei der der Behälter innerhalb einem wesentlich grösserem runden Raum eingesetzt ist,
Figur 8
einen Querschnitt längs Linie VIII - VIII in Figur 7,
Figur 9
einen Grundriss durch einen Behälter mit einer Rinne, die aus einem schraubenlinienförmig verlaufenden Schlauch gebildet wird,
Figur 10
einen Rinnenabschnitt in Seitenansicht im Bereich A in Figur 9,
Figur 11
einen Querschnitt durch die Rinne in Figur 9 längs Linie XI - XI.
The invention is explained in more detail with the aid of illustrated exemplary embodiments. Show it:
Figure 1
3 shows a cross section through the container along line II in FIG. 2,
Figure 2
a longitudinal section through the container along line II-II in Figure 1 and
Figure 3
2 shows an enlarged representation of the cross section of the channel in section II-II in FIG. 1,
Figure 4
an enlarged view of the channel at its outlet end X,
Figure 5
2 shows a longitudinal section through the container in one embodiment with an overflow line leading laterally out of the sump,
Figure 6
2 shows a plan view of a further embodiment of the invention, in which the container is inserted within a substantially larger angular space,
Figure 7
2 shows a plan view of a further embodiment of the invention, in which the container is used within a substantially larger round space,
Figure 8
4 shows a cross section along line VIII-VIII in FIG. 7,
Figure 9
a floor plan through a container with a gutter, which is formed from a helical hose,
Figure 10
3 shows a channel section in side view in area A in FIG. 9,
Figure 11
a cross section through the channel in Figure 9 along line XI - XI.

Die Vorrichtung zum Separieren von Feststoffen aus Flüssigkeits-Feststoffgemischen umfasst einen Separierbehälter, kurz Behälter 1 genannt, mit einer Wand 3. Im dargestellten Beispiel weist der Behälter 1 eine zylindrische Wand 3 auf. Alternativ könnte die Wand 3 sich konisch nach unten verengend ausgebildet sein, d.h. der Behälter 1 könnte ein auf dem Kopf stehender Kegelstumpf sein, oder die Wand könnte mindestens unten halbkugelförmig ausgebildet sein. Der Behälter 1 ist unten durch einen Boden 5 verschlossen, in dessen Zentrum ein Sumpf 7 ausgebildet ist, der ebenfalls eine zylindrische oder kegelförmige oder halbkugelförmige Gestalt aufweisen kann. Der Behälter 1 kann aus Kunststoff, Metall oder aus Beton hergestellt sein.The device for separating solids from Liquid-solid mixtures include one Separation tank, called tank 1 for short, with a wall 3. In the example shown, the container 1 has one cylindrical wall 3. Alternatively, the wall 3 could be conical downwards, i.e. the Container 1 could be an upside down truncated cone or at least the wall could be below be hemispherical. Container 1 is below closed by a bottom 5, in the center of which Swamp 7 is formed, which is also a cylindrical or have a conical or hemispherical shape can. The container 1 can be made of plastic, metal or Be made of concrete.

Eine Zulaufleitung 9 mündet tangential verlaufend in den oberen Bereich des Behälters 1. An das vordere Ende 11 der Zulaufleitung 9 schliesst ein schraubenlinienförmig verlaufendes Leitmittel in Gestalt einer sich stetig verengenden Rinne 13 an. Die Rinne 13 ist als L-förmiges Profil gestaltet, mit einem zur Wand 3 in einem spitzen Winkel verlaufenden und einem horizontalen Schenkel, der mit der Wand 3 des Behälters 1 verbunden, z.B. verschweisst oder verklebt ist. Die Rinne 13 erstreckt sich über mindestens einen Winkelbereich von 90° und endet auf der Höhe h2. Die Breite der Rinne 13 ist vorzugsweise stetig abnehmend. Das Ende der Rinne 13 liegt folglich unterhalb der Mündung der Leitung 9, die auf der Höhe h3 liegt. Selbstverständlich kann die Rinne 13 auch eine U-förmige Gestalt wie eine Dachrinne aufweisen. Sie soll in jedem Fall gewährleisten, dass die die Rinne 13 an deren Ende verlassende Flüssigkeit an der Wand 3 weiterfliesst.An inlet line 9 opens tangentially into the upper region of the container 1. A helical guide means in the form of a continuously narrowing channel 13 connects to the front end 11 of the inlet line 9. The channel 13 is designed as an L-shaped profile, with a leg extending at an acute angle to the wall 3 and a horizontal leg which is connected to the wall 3 of the container 1, for example welded or glued. The channel 13 extends over at least an angular range of 90 ° and ends at the height h 2 . The width of the channel 13 is preferably continuously decreasing. The end of the channel 13 is therefore below the mouth of the line 9, which is at the height h 3 . Of course, the gutter 13 can also have a U-shaped shape like a gutter. In any case, it is intended to ensure that the liquid leaving the channel 13 at its end continues to flow on the wall 3.

Um den zentrisch angeordneten Sumpf 7 erstreckt sich über einen Bereich von ca. 180 oder mehr Winkelgraden eine spiralförmig verlaufende, vom Boden 5 abstehende Rippe 15. Der der Achse A des Behälters 1 am nächsten liegende Teil der Rippe 15 befindet sich in der Mantelfläche der Wand des Sumpfes 7 und erstreckt sich von dort mit zunehmendem Abstand und vorzugsweise zunehmender Höhe spiralförmig von der Achse A über den halben Umfang des Behälters 1.Around the centrally arranged sump 7 extends over a range of approximately 180 degrees or more rib 15 extending in a spiral shape and protruding from the bottom 5. The part closest to the axis A of the container 1 the rib 15 is located in the outer surface of the wall of the swamp 7 and extends from there with increasing Distance and preferably increasing height spiraling from the axis A over half the circumference of the container 1.

Vom Sumpf 7 führt eine Schlammabsaugleitung 17 aus dem Behälter 1 heraus. Die Schlammabsaugleitung 17 kann, wie in Figur 2 dargestellt, zentral in den Sumpf 7 hineinragen, nach oben wegführen und durch ein Ventil 19 verschliessbar sein. Die Leitung 17 kann aber auch vom Sumpf 7 nach unten (keine Abbildung) oder seitlich wegführen. Die Absaugleitung 17 kann mit einer nicht dargestellten Pumpe verbunden sein, falls der Ablauf nicht durch Gefälle erfolgen kann.
Alternativ kann gemäss der Ausführungsform in Figur 5 aus dem Sumpf 7 heraus eine überlaufleitung 22 wegführen, deren Ausfluss 24 auf der Höhe h3 endet. Sobald der Behälter 1 voll ist, beginnt ein Abfluss über die Leitung 22 und gleichzeitig wird der Schlamm aus dem Sumpf 7 abgeführt.A sludge suction line 17 leads out of the sump 7 out of the container 1. As shown in FIG. 2, the sludge suction line 17 can protrude centrally into the sump 7, lead upwards and be closed by a valve 19. The line 17 can also lead from the sump 7 downwards (not shown) or laterally. The suction line 17 can be connected to a pump, not shown, if the drain cannot take place on a slope.
Alternatively, according to the embodiment in FIG. 5, an overflow line 22 can lead out of the sump 7, the outflow 24 of which ends at the level h 3 . As soon as the container 1 is full, an outflow via the line 22 begins and at the same time the sludge is removed from the sump 7.

Zwischen der Aussenwand der Rippe 15 und der Wand 3 des Behälters 1 endet in geringem Abstand zum Boden 5 eine Flüssigkeits-Entnahmeleitung 23, mit der die von Festkörpern befreite Flüssigkeit abgesaugt werden kann. Vorzugsweise ist das Ende der Entnahmeleitung 23 mit einem Seiher 25 versehen. Dieser verhindert zum einen das Einsaugen von Festkörpern und zum andern vergrössert sich dadurch die Ansaugfläche und vermindert den Aufbau einer gegen das Ende der Entnahmeleitung 23 gerichteten Saugströmung. Das Ende der Entnahmeleitung 23 bzw. der Seiher 25 liegt unterhalb der minimalen Füllhöhe h1.Between the outer wall of the rib 15 and the wall 3 of the container 1, a liquid removal line 23 ends at a short distance from the bottom 5, with which the liquid freed from solids can be sucked off. The end of the extraction line 23 is preferably provided with a strainer 25. On the one hand, this prevents solid bodies from being sucked in, and on the other hand this increases the suction area and reduces the build-up of a suction flow directed towards the end of the removal line 23. The end of the extraction line 23 or the strainer 25 is below the minimum filling height h 1 .

In der Ausgestaltung der Erfindung gemäss den Figuren 6 bis 8 ist der Behälter 1 innerhalb eines volumenmässig wesentlich grösseren Raumes oder Tanks 31 eingesetzt. An die Stelle der Flüssigkeits-Entnahmeleitung 23 treten seitliche Austrittsöffnungen 33 im bodennahen Bereich der Wand 3 des Behälters 1. Diese erlauben dem Brauchwasser den Austritt in den grossen Tank 31. Die Sendimente verbleiben im Sumpf 7 des Behälters 1 und können diesem periodisch entnommen werden. In the embodiment of the invention according to FIGS. 6 to 8, the container 1 is within a volume much larger space or tanks 31 used. On replace the liquid extraction line 23 lateral outlet openings 33 in the area of the bottom Wall 3 of the container 1. These allow the process water the exit into the big tank 31. The sendiments remain in the sump 7 of the container 1 and can this be removed periodically.

In der Figuren 9 bis 11 wird die Rinne 13 durch ein Rohr 35 gebildet, das schraubenlinienförmig entlang der Wand 3 geführt ist. Im Bereich des oberen Rohrscheitels S ist das Rohr 35 in Abständen aufgeschnitten, so dass Öffnungen 37 entstehen, durch welche das sedimentfreie Wasser austreten kann, wenn der Wasserspiegel im Behälter 1 ansteigt und das untere Rohrende übersteigt. Das Rohr 35 endet auf der Behältersohle 5.In Figures 9 to 11, the trough 13 is through a tube 35 formed, the helical along the wall 3rd is led. In the area of the upper pipe apex S that is Cut pipe 35 at intervals so that openings 37 arise through which the sediment-free water emerges can, if the water level in tank 1 rises and exceeds the lower pipe end. The tube 35 ends on the Container bottom 5.

Im folgenden wird die Funktionsweise der Vorrichtung näher erläutert. Die zufliessende Flüssigkeit, z.B. Regenwasser von Dächern und Plätzen, fliesst durch die Leitung 9 in den Behälter 1 und gelangt über die geneigte Rinne 13 und mit stets grösser werdender Fliessgeschwindigkeit an die Wand 3 des Behälters 1. Je höher die Fliessgeschwindigkeit der Flüssigkeit ist, umso grösser wird die Rotationsbewegung der Flüssigkeit im Behälter 1, welche in der Rinne 13 an der Wand 3 hochgedrückt wird (vgl. Figur 4). Dies gewährleistet, dass die Wand 3 des Behälters 1 unabhängig vom Wasserstand innerhalb des Behälters 1 frei von Ablagerungen bleibt. Bei starkem Zufluss bewirkt die eingeführte Flüssigkeitsmenge eine Rotation des gesamten Behälterinhalts im Uhrzeigersinn. Je grösser der Zufluss und je kleiner das Flüssigkeitsniveau im Behälter 1, umso grösser ist die Rotationsgeschwindigkeit. Die stete Umwälzung des Behälterinhalts verbessert die Qualität der Flüssigkeit und die Lagerfähigkeit. Durch die Rippe 15 werden an der Sohle (Boden 5) des Behälters 1 sich absetzenden Feststoffe sukzessive ins Zentrum befördert und gelangen in den Sumpf 7. Eine Aufwirbelung innerhalb des Sumpfs 7 findet nicht mehr statt und die Feststoffe können durch die Schlammablaufleitung 17 und/oder die Überlaufleitung 22 aus dem Sumpf 7 entnommen werden. Die Entnahme der Festkörper aus dem Sumpf 7 kann kontinuierlich oder periodisch erfolgen. Im zweiten Ausführungsbeispiel werden die Festkörper immer bei überlaufendem Behälter abgeführt.
Analog sind die Verhältnisse bei der rohrförmigen Rinne in den Figuren 9 bis 11. Die eintretende Flüssigkeit fliesst mit zunehmender Geschwindigkeit nach unten und kann in Bodennähe, getrennt von den Festkörpern entnommen werden. Steigt im Behälter 1 der Wasserspiegel, so tritt die sedimentfreiere Flüssigkeit durch die der Oberfläche am nächsten liegende Öffnung 37 aus; die Sedimente gleiten im Rohr 35 weiter nach unten in den Sumpf 7.
Die Entnahme der von Festkörpern im wesentlichen befreiten Flüssigkeit erfolgt durch die Flüssigkeitsentnahmeleitung 23. Die Entnahme ist kontinuierlich oder periodisch möglich.The mode of operation of the device is explained in more detail below. The inflowing liquid, for example rainwater from roofs and squares, flows through line 9 into container 1 and reaches wall 3 of container 1 via inclined channel 13 and with increasing flow velocity. The higher the flow velocity of the liquid, the greater The rotational movement of the liquid in the container 1, which is pushed up in the groove 13 on the wall 3, becomes greater (cf. FIG. 4). This ensures that the wall 3 of the container 1 remains free of deposits regardless of the water level inside the container 1. In the case of a strong inflow, the amount of liquid introduced causes the entire contents of the container to rotate in a clockwise direction. The greater the inflow and the smaller the liquid level in container 1, the greater the rotational speed. The constant circulation of the container contents improves the quality of the liquid and the shelf life. Solids which settle on the bottom (bottom 5) of the container 1 are successively conveyed to the center by the rib 15 and reach the sump 7. Swirling within the sump 7 no longer takes place and the solids can pass through the sludge discharge line 17 and / or the overflow line 22 can be removed from the sump 7. The solids can be removed from the sump 7 continuously or periodically. In the second embodiment, the solids are always removed when the container overflows.
The situation is similar in the case of the tubular trough in FIGS. 9 to 11. The liquid that flows in flows downward with increasing speed and can be removed near the ground, separately from the solids. If the water level rises in the container 1, the sediment-free liquid exits through the opening 37 closest to the surface; the sediments slide down tube 35 further down into the sump 7.
The liquid, essentially freed from solids, is removed through the liquid removal line 23. The removal is possible continuously or periodically.

Claims (10)

  1. Device for separating solids from liquid-solid mixtures in industrial rainwater plants, comprising a rotation-symmetrical separating container (1), having a wall and a container base, in which the liquid-solid mixture is introduced through a tangentially discharging inlet pipe (9), a sump (7), which is configured as a recess in the container base (5), a sludge suction pipe (17) discharging into the sump (7) and a liquid removal pipe (23), characterised in that, in the separating container (1) connected to the discharge (11) of the inlet pipe (9) into the separating container (1), a helical line-shaped conducting means (13, 35), which extends along the wall (3) downwardly and is open at the top, is configured, and in that a rib (15), which approaches the sump (7) helically radially from the exterior, is disposed, the direction of rotation of which is identical to that of the conducting means (13, 35).
  2. Device according to claim 1, characterised in that the conducting means is configured as a channel (13) or as a pipe (35), the apex of which is pierced by a plurality of openings.
  3. Device according to claim 1, characterised in that the conducting means is configured as a channel (13) with a constantly decreasing width.
  4. Device according to one of the claims 1 to 3, characterised in that the sludge suction pipe (17) discharges into the sump (7) in the centre or at the periphery.
  5. Device according to claim 4, characterised in that the interior one end of the rib (15) terminates at the edge of the sump (7) which is configured as a recess in the container base (5).
  6. Device according to claim 5, characterised in that the height of the rib (15) reduces towards the interior end.
  7. Device according to one of the claims 1 to 6, characterised in that the separating container (1) is disposed in a round or cornered tank (31) which is substantially larger with respect to volume, and in that outlet openings (33) are provided for the outflow of the industrial water into the tank (31) in the wall (3) of the separating container (1).
  8. Device according to one of the claims 1 to 7, characterised in that the suction-side end of the liquid removal pipe (23) is situated between the outer wall of the rib (15) and the wall (3) of the separating container (1) and at a small spacing from the container base (5).
  9. Device according to claim 8, characterised in that a filter (25) is placed on the inlet opening at the end of the liquid removal pipe (23).
  10. Device according to one of the claims 1 to 9, characterised in that the sump (7) is connected to an overflow pipe (22) which rises upwardly to the inlet height (h3).
EP99810530A 1998-06-16 1999-06-16 Device for removing solid matter from a mixture of liquid and solid matter Expired - Lifetime EP0965375B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH129198 1998-06-16
CH129198 1998-06-16

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EP0965375A1 EP0965375A1 (en) 1999-12-22
EP0965375B1 true EP0965375B1 (en) 2004-09-15

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AT (1) ATE276031T1 (en)
DE (1) DE59910488D1 (en)

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Publication number Priority date Publication date Assignee Title
CN109569870A (en) * 2018-12-14 2019-04-05 爱可道生物科技有限公司 It is a kind of can rapid classification discharging globe artichoke petal processing unit (plant)

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KR100444552B1 (en) * 2001-09-13 2004-08-16 삼성광주전자 주식회사 Cyclone dust collector for vacuum cleaner
WO2006091064A1 (en) * 2005-02-22 2006-08-31 Perez Monsrreal Jose Rogelio Device for the treatment of domestic wastewater, comprising the slow release of fluids
JP5486326B2 (en) * 2010-01-25 2014-05-07 ツインバード工業株式会社 Cyclone vacuum cleaner
MX2011005083A (en) 2011-05-13 2012-11-19 Jose Rogelio Perez Monsrreal Biofilter for wastewater digestion.

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US3349548A (en) * 1964-01-22 1967-10-31 C C Ind Cyclone separator for separating steam from water
JPS55139853A (en) * 1979-04-20 1980-11-01 Masayoshi Takee Device for separating solid foreign matter from liquid
JPS55155753A (en) * 1979-05-22 1980-12-04 Asano Ereko Kk Device for separating solid foreign matter from liquid
US4624691A (en) * 1985-03-04 1986-11-25 Varnas Enterprises Cyclone separators to prevent or reduce clogging
GB2233255B (en) * 1989-06-21 1993-07-14 Hydro Int Ltd Separator
US5137554A (en) * 1991-09-09 1992-08-11 Fasco Industries, Inc. Cyclonic vacuum cleaner cone

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN109569870A (en) * 2018-12-14 2019-04-05 爱可道生物科技有限公司 It is a kind of can rapid classification discharging globe artichoke petal processing unit (plant)

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DE59910488D1 (en) 2004-10-21
EP0965375A1 (en) 1999-12-22

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