EP3079802B1 - Vorrichtung zum umwälzen einer in einem behälter aufgenommenen flüssigkeit - Google Patents

Vorrichtung zum umwälzen einer in einem behälter aufgenommenen flüssigkeit Download PDF

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Publication number
EP3079802B1
EP3079802B1 EP14793059.8A EP14793059A EP3079802B1 EP 3079802 B1 EP3079802 B1 EP 3079802B1 EP 14793059 A EP14793059 A EP 14793059A EP 3079802 B1 EP3079802 B1 EP 3079802B1
Authority
EP
European Patent Office
Prior art keywords
cut
stirring body
conveyor
out surface
ribs
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.)
Active
Application number
EP14793059.8A
Other languages
German (de)
English (en)
French (fr)
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EP3079802A1 (de
Inventor
Marcus HÖFKEN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Invent Umwelt und Verfahrenstechnik AG
Original Assignee
Invent Umwelt und Verfahrenstechnik AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Invent Umwelt und Verfahrenstechnik AG filed Critical Invent Umwelt und Verfahrenstechnik AG
Priority to PL14793059T priority Critical patent/PL3079802T3/pl
Publication of EP3079802A1 publication Critical patent/EP3079802A1/de
Application granted granted Critical
Publication of EP3079802B1 publication Critical patent/EP3079802B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/117—Stirrers provided with conical-shaped elements, e.g. funnel-shaped
    • B01F27/1171—Stirrers provided with conical-shaped elements, e.g. funnel-shaped having holes in the surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/117—Stirrers provided with conical-shaped elements, e.g. funnel-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/50—Mixing receptacles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/305—Treatment of water, waste water or sewage

Definitions

  • the invention relates to a device for circulating a liquid received in a container, in particular for circulating wastewater received in a basin.
  • Such a device is from the WO 2006/108538 A1 known.
  • the known device it is possible to circulate the wastewater received in the basin with a relatively small amount of electrical energy.
  • the object of the invention is to provide a device with which a liquid received in a container can be circulated with improved efficiency.
  • the geometric center of gravity of the breakthrough surface is in a region between the center line and one of the two transport ribs.
  • breakthrough surface is understood to mean a planar surface which results from projection onto a plane which extends perpendicular to the surface normal extending through the center of gravity onto the breakdown surface.
  • the geometric center of gravity of the breakthrough surface corresponds to the center of mass of a physical body corresponding to the breakdown surface, which consists of homogeneous material and has the same thickness everywhere. It can therefore be determined, for example, purely mechanically by balancing.
  • the geometric center of gravity of the breakthrough surface can also be calculated using generally known mathematical methods.
  • the break-through surface may be approximately described by a polygon, and a mathematical method for computing the centroid of a polygon may be used to calculate the geometric centroid.
  • top of the stirring body is understood to mean the side which is approximately convex or raised.
  • bottom of the stirring body on an approximately concave or recess forming form.
  • the transport ribs each have a curvature, which is directed towards the shaft in the radial direction. Ie. the transport ribs are inclined in the region of a peripheral edge and then bend in the radial direction.
  • the efficiency of the stirring body can be improved.
  • the breakthrough surface extends substantially in the radial direction. It has a first end near the shaft and a second end near the peripheral edge.
  • the breakthrough area may have a greater width at the second end than at the first end. Ie. the breakthrough area elongated in the radial direction advantageously increases towards the peripheral edge.
  • a height of the transport ribs increases from the peripheral edge to approximately to the first end of the adjacent breakthrough surface.
  • the height of the transport ribs then takes about from the first end of the adjacent Breakthrough surface in the direction of the shaft again.
  • a maximum of the height of the transport ribs may also lie between the first and the second end. It is in this case preferably closer to the first end than to the second end. It has been shown that in particular the design of the transport ribs in combination with the adjacent position of the breakthrough surfaces leads to a further increase in efficiency.
  • the breakthrough surface is bounded on its one longitudinal side by a transport rib.
  • the one longitudinal side of the breakthrough surface is advantageously adjacent or adjacent to the seen from the top of the stirring ago her convex curved side of the transport rib limited.
  • the transport rib is inclined towards the aperture surface of the adjacent or adjacent breakthrough.
  • the transport rib can form an angle ⁇ of about 90 ° with the top of the stirring body in the region of the peripheral edge.
  • the angle ⁇ advantageously decreases in the direction of the breakthrough surface to a value in the range of 60 to 87 °, so that the transport rib is inclined towards the breakthrough surface. This surprisingly causes a further increase in efficiency.
  • a ratio between a lateral surface of the stirring body and a total breakthrough area of all apertures is in the range from 10: 1 to 10: 2.
  • the term "lateral surface of the stirring body” is understood to mean the surface of the upper side of the stirring body, the surfaces formed by the transporting ribs being omitted.
  • the focal points of the breakdown surfaces are spaced approximately at the same angle.
  • a symmetry of the stirring body is advantageously defined by an n-fold axis of rotation, where n is an integer value of 6 to 12. Ie. the stirring body according to the invention advantageously has six to twelve of the openings.
  • the stirring body is formed of identical segments, which are connected to each other along from the peripheral edge to a centrally arranged connector extending joining zones. This considerably simplifies the production of the stirring body.
  • each segment such that the transport rib is arranged in the region of a joining zone and the opening is partially bounded by the transport rib.
  • the openings in the region of a radially inner half of the stirring body are arranged. Ie. the aperture extends with its second end at most up to half of the radius of the stirring body.
  • Fig. 1 shows a plan view of a designated here generally by the reference numeral 1 agitator according to the prior art.
  • the stirring body has a substantially hyperboloidal shape (not visible here).
  • a central connection piece 2 serves for connection to a shaft (not shown here).
  • Each of the transport ribs T1 to T8 has a ridgeline K1 to K8 in each case.
  • Two adjacent ridgelines, for example K1 and K2 define therebetween a center line M1, M2.
  • the center line M1, M2 results from points of equal minimum distance to each of the ridge lines K1 and K2 of the adjacent transport ribs T1 and T2.
  • an opening D1 to D8 is provided in each case.
  • a breakdown area of the opening D1 to D8 has in each case a geometric center of gravity S1 to S8.
  • the geometric center of gravity S1 to S8 in the prior art agitator 1 lies on the corresponding center line, of which only the center lines M1 and M2 are shown here by way of example.
  • the Fig. 2 to 6 show a stirring body according to the invention 1.
  • the openings D1 to D8 are each arranged adjacent to the transport ribs T1 to T8.
  • the geometrical centers of gravity, of which only the centers of gravity S1 and S8 are shown here by way of example, are the openings D1 to D8 in the agitator 1 according to the invention in a region between the center lines M1, M8 and the ridge lines K1, K8 of the adjacent transport ribs T1, T8.
  • the centers of gravity S1, S8 are located approximately in the middle between the respective center lines M1, M8 and the adjacent transport ribs T1, T8.
  • the geometric center of gravity S1, S8 can lie in particular in the central region of a straight path W, which connects the center lines M1, M8 with the adjacent transport rib T1, T8 (see Fig. 2 ).
  • Under the "middle Range "of the route W is understood as an area extending from the end of a first third to the beginning of a third third of the route W, ie, the area comprises the second third of the distance W.
  • the focal points S1, S8 at least 1 cm, preferably at least 2 cm, in the circumferential direction next to the center line on the route W.
  • Each aperture D1 to D8 has a first end E1 in the vicinity of the connector 2 and a shaft attached thereto and a second end E2 in the vicinity of the peripheral edge UR (see Fig. 4 ).
  • the aperture D1 to D8 has an elongated shape in the radial direction. An area of the aperture area increases toward the peripheral edge UR.
  • the breakthrough surface is bounded on its one longitudinal side by a transport rib T1 to T8. In a plan view of the upper side O, the one longitudinal side of the breakthrough surface is advantageously delimited by the convexly curved side of the transport rib T1 to T8.
  • Each transport rib T1 to T8 has a minimum height H1 in the area of the peripheral edge UR and a maximum height H2 in the area of the opening D1 to D8.
  • a ratio H1 / H2 is in the range 1/5 to 1/100, preferably in the range 1/5 to 1/20.
  • the maximum height H2 is advantageously at the first end E1 of the opening D1 to D8. It can also lie between the first and the second end E2 of the opening D1 to D8.
  • a normal of the maximum height lies on the breakthrough surface D1 to D8 at a distance of at most 15 cm from the first end E1.
  • the maximum height H2 decreases from the openings D1 to D8 in the direction of the connecting piece 2 again.
  • the transport ribs T1 to T8 extend at least in the region of the peripheral edge UR substantially perpendicular to the top O, ie they form with the top O an angle ⁇ of about 90 °.
  • the angle ⁇ decreases with increasing distance to the peripheral edge UR, so that the transport rib T1 to T8 inclines towards the adjacent opening D1 to D8.
  • the angle ⁇ is expediently less than 90 °. He lies there in a range of 60 to 87 °. Overall, the angle ⁇ can thus be in a range of 60 to 90 °.
  • the partial overlap of the openings D1 to D8 by the obliquely inclined transport ribs T1 to T8 is in particular from the Fig. 3 and 4 seen. - In Fig. 4 is designated by the reference numeral U one of the top O of the stirring body 1 opposite underside.
  • the stirring body 1 is constructed symmetrically in the present embodiment. He has here an eight-fold axis of rotation. It is of course also possible for the stirring body 1 to have an n-fold axis of rotation, where n is, for example, an integer value of 6 to 12.
  • the stirring body 1 may advantageously be made of a plurality of identical segments Sg1 to Sg8 (see Figs. 2 to 4 ).
  • the segments Sg1 to Sg8 are along joining zones F1 to F8 (see FIG Fig. 3 ) connected with each other.
  • a course of the joining zones F1 to F8 substantially corresponds to the curved course of the transport ribs T1 to T8.
  • Fig. 7 shows by way of example a perspective view of a first segment Sg1.
  • the first segment Sg1 has at its one long edge a first joint section Fa1 and at its other long edge a second joint section Fa2.
  • the first joining section Fa1 is provided with a first joining profile P1, which here is designed in the manner of a step. From the first joining profile P1 extends at the angle ⁇ , the first transport rib T1.
  • the first segment Sg1 generally has a second joining profile P2 (not shown in detail here), which corresponds to the first joining profile P1.
  • the second joining profile P2 corresponds to the cross section of a flat plate.
  • first segment Sg1 can be connected to each other with identical other segments Sg2 to Sg8, preferably by means not shown here screw connections.
  • threaded bushes can be provided in the region of the second joining profile P2. It is also possible to glue the segments Sg1 to Sg8 together in addition to the mentioned screw connections.
  • the stirring body 1 has a hyperboloid-like shape, it may also be that the stirring body 1 is formed, for example, in the manner of a truncated cone.
  • the device according to the invention can be operated with a significantly improved efficiency.
  • the reason for this is essentially the arrangement of the openings D1 to D8, such that their geometric center of gravity S1 to S8 is located in the vicinity of an adjacent transport rib T1 to T8.
  • the inclination of the transport ribs T1 to T8 towards the adjacent breakthrough surfaces contributes to a further increase in efficiency.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Sewage (AREA)
EP14793059.8A 2013-12-11 2014-10-27 Vorrichtung zum umwälzen einer in einem behälter aufgenommenen flüssigkeit Active EP3079802B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14793059T PL3079802T3 (pl) 2013-12-11 2014-10-27 Urządzenie do obracania płynu umieszczonego w zbiorniku

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013225659.0A DE102013225659A1 (de) 2013-12-11 2013-12-11 Vorrichtung zum Umwälzen einer in einem Behälter aufgenommenen Flüssigkeit
PCT/EP2014/072937 WO2015086212A1 (de) 2013-12-11 2014-10-27 Vorrichtung zum umwälzen einer in einem behälter aufgenommenen flüssigkeit

Publications (2)

Publication Number Publication Date
EP3079802A1 EP3079802A1 (de) 2016-10-19
EP3079802B1 true EP3079802B1 (de) 2018-03-21

Family

ID=51846628

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14793059.8A Active EP3079802B1 (de) 2013-12-11 2014-10-27 Vorrichtung zum umwälzen einer in einem behälter aufgenommenen flüssigkeit

Country Status (16)

Country Link
US (1) US10058832B2 (pl)
EP (1) EP3079802B1 (pl)
JP (1) JP6606077B2 (pl)
KR (1) KR20160096679A (pl)
CN (1) CN105899287B (pl)
CA (1) CA2933240C (pl)
DE (1) DE102013225659A1 (pl)
DK (1) DK3079802T3 (pl)
ES (1) ES2669211T3 (pl)
HU (1) HUE036913T2 (pl)
IL (1) IL246013B (pl)
MX (1) MX370422B (pl)
PL (1) PL3079802T3 (pl)
TW (1) TWI630026B (pl)
WO (1) WO2015086212A1 (pl)
ZA (1) ZA201603619B (pl)

Families Citing this family (6)

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DE102013225662A1 (de) * 2013-12-11 2015-06-11 Invent Umwelt- Und Verfahrenstechnik Ag Rührkörper zum Umwälzen von in einem Becken aufgenommenem Abwasser und Vorrichtung
DE102013225659A1 (de) * 2013-12-11 2015-06-11 Invent Umwelt- Und Verfahrenstechnik Ag Vorrichtung zum Umwälzen einer in einem Behälter aufgenommenen Flüssigkeit
DE102013225658A1 (de) * 2013-12-11 2015-06-11 Invent Umwelt- Und Verfahrenstechnik Ag Rührkörper und Rührvorrichtung zum Erzeugen einer Strömung in einem Abwasserbehandlungsbecken
KR101878555B1 (ko) * 2016-08-23 2018-07-13 엘지전자 주식회사 냉각수 교반기 및 이를 구비한 정수기
DE102019101416B4 (de) * 2018-12-03 2020-07-16 Invent Umwelt- Und Verfahrenstechnik Ag Hyperboloid-Rührkörper zum Umwälzen von Flüssigkeiten sowie Rühr- und Begasungseinrichtung
DE102019111492A1 (de) * 2019-05-03 2020-11-05 Invent Umwelt-Und Verfahrenstechnik Ag Propeller und Rührwerk zum Umwälzen von Abwasser in einem Klärbecken

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DE102013225662A1 (de) * 2013-12-11 2015-06-11 Invent Umwelt- Und Verfahrenstechnik Ag Rührkörper zum Umwälzen von in einem Becken aufgenommenem Abwasser und Vorrichtung
DE102013225658A1 (de) * 2013-12-11 2015-06-11 Invent Umwelt- Und Verfahrenstechnik Ag Rührkörper und Rührvorrichtung zum Erzeugen einer Strömung in einem Abwasserbehandlungsbecken
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Also Published As

Publication number Publication date
CN105899287A (zh) 2016-08-24
CA2933240A1 (en) 2015-06-18
KR20160096679A (ko) 2016-08-16
CA2933240C (en) 2021-07-13
MX2016007476A (es) 2016-08-03
TW201521861A (zh) 2015-06-16
JP6606077B2 (ja) 2019-11-13
ES2669211T3 (es) 2018-05-24
US10058832B2 (en) 2018-08-28
CN105899287B (zh) 2018-02-09
JP2016539798A (ja) 2016-12-22
DE102013225659A1 (de) 2015-06-11
US20160339401A1 (en) 2016-11-24
TWI630026B (zh) 2018-07-21
IL246013B (en) 2020-02-27
WO2015086212A1 (de) 2015-06-18
ZA201603619B (en) 2017-08-30
HUE036913T2 (hu) 2018-08-28
MX370422B (es) 2019-12-13
EP3079802A1 (de) 2016-10-19
PL3079802T3 (pl) 2018-08-31
DK3079802T3 (en) 2018-06-25

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