EP3079801B1 - Rührkörper zum umwälzen von in einem becken aufgenommenem abwasser und vorrichtung - Google Patents

Rührkörper zum umwälzen von in einem becken aufgenommenem abwasser und vorrichtung Download PDF

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Publication number
EP3079801B1
EP3079801B1 EP14789287.1A EP14789287A EP3079801B1 EP 3079801 B1 EP3079801 B1 EP 3079801B1 EP 14789287 A EP14789287 A EP 14789287A EP 3079801 B1 EP3079801 B1 EP 3079801B1
Authority
EP
European Patent Office
Prior art keywords
stirring body
segments
body according
stirring
segment
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
EP14789287.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3079801A1 (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 PL14789287T priority Critical patent/PL3079801T3/pl
Publication of EP3079801A1 publication Critical patent/EP3079801A1/de
Application granted granted Critical
Publication of EP3079801B1 publication Critical patent/EP3079801B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B01F27/21—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by their rotating shafts
    • B01F27/213—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by their rotating shafts characterised by the connection with the drive
    • 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
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/07—Stirrers characterised by their mounting on the shaft
    • B01F27/072—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis
    • B01F27/0725—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis on the free end of the rotating axis
    • 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
    • B01F35/165—Making mixers or parts thereof
    • 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
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like
    • B21D53/267—Making other particular articles wheels or the like blower wheels, i.e. wheels provided with fan elements
    • 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 stirring body according to the preamble of claim 1 and a device.
  • a device is known in which the stirring body is made of one piece of fiber-reinforced plastic.
  • the preparation of the known stirring body is done manually. It requires the provision of a costly form.
  • the stirring body is formed of a plurality of segments made of metal, which are composed along the stirring shaft to a peripheral edge of the stirring body extending joining zones. - By the segments forming the stirring body are made of metal, eliminates the associated high cost of providing a mold. The segments can be machined. They can only be connected together at the place of use. The transport volume is considerably reduced compared to conventional stirring bodies. Because of the proposed course of the joining zones from the connecting piece to the peripheral edge of the stirring body, it is advantageously possible to construct the segments of identical construction. The proposed device can be easily and inexpensively manufactured and transported.
  • the joining zones extend from an imaginary center of a circle whose circumference corresponds to the circumference of the stirring body. They extend from the center in the direction of the peripheral edge of the stirring body.
  • the joining zones can be straight or curved in plan view of the stirring body. They can also be angled and / or have one or more displacements in the circumferential direction.
  • the joining zones extend at least in sections parallel and / or obliquely with respect to a radial direction.
  • the joining zones are formed in plan view of a plurality of straight sections, which are connected to each other via a bend.
  • an angle ⁇ enclosed by adjacent sections can amount to 130 ° to 170 °. This results in an approximate "bent" joining zone in this case.
  • Such a joining zone can advantageously be used simultaneously for the production of correspondingly "curved" transport ribs.
  • each segment has bending lines running in the radial direction. By bending the segments along the bending lines, the conical or hyperboloidal shape of the stirring body is realized.
  • the segments are made of sheet metal made of stainless steel having a thickness of 0.5 to 15 mm, preferably 0.8 to 3 mm.
  • Stainless steel sheet is robust and durable. Its shaping can be done mechanically, in particular also automatically.
  • the segments expediently have a circular segment-like shape in plan view.
  • the approximately radially extending edges of the segments can each be curved in the same direction.
  • the segments are advantageously designed to be identical. This saves manufacturing costs and facilitates the joining of the segments.
  • shear ribs are attached to a peripheral edge portion of the segments forming a portion of the peripheral edge.
  • the stirring body can also be used in this case for aerating and / or gassing the liquid.
  • the shear ribs cause the crushing of large gas bubbles in a variety of small gas bubbles and thus an increase in the interface between gas and liquid. This in turn increases the efficiency of cleaning.
  • each segment may each extend at least one transport rib.
  • the transport ribs improve the stirring efficiency.
  • the joining zones are formed by bent to the top of the segments towards sheet metal sections.
  • the rigidity of the segments can be improved and at the same time a joining and functional surface can be made available:
  • the z. B. bent by 90 ° sheet metal sections of two adjacent segments can advantageously form a transport rib in the connected state.
  • the shearing and / or transport ribs are formed from a sheet made of stainless steel and connected to the respective segment by means of at least one point connection.
  • the point connections are expediently designed as rivet, ringniet-, screw or spot welded joint.
  • a radially inner end of each segment has an angled connection section provided with an opening. If all segments are connected to each other, the openings of the terminal sections are expediently on an imaginary circle.
  • the connection sections form the connection piece of the stirring body. This allows a connection of the stirring body to a conventional connection flange of a stirring shaft.
  • each segment is formed of a plurality of sub-segments, which are composed along approximately further concentric with respect to the agitator shaft extending further joining zones.
  • Such sub-segments can be relatively easily produced by means of laser cutting and edges.
  • the segments and / or the sub-segments are advantageously connected to each other by means of fastening means, such as rivet, ringniet, screws, or by means of spot welds. Such connections are permanent.
  • fastening means such as rivet, ringniet, screws, or by means of spot welds. Such connections are permanent.
  • the stirring body according to the invention has excellent rigidity and durability.
  • a device for circulating wastewater received in a basin, wherein an agitator body according to the invention is attached to a stirring shaft extending from a drive device.
  • the stirring body is attached with its connection piece to a terminal provided on the agitator shaft flange.
  • a stirring member indicated generally by the reference numeral 2.
  • the stirring body 2 has a hyperboloid-like shape.
  • a diameter of the stirring body is at least 120 cm, preferably at least 140 to 150 cm.
  • a connection piece arranged centrally with respect to a peripheral edge is connected to the stirrer shaft 1.
  • the shape of the stirring body 2 is given in particular by bending along radial bending edges B.
  • On one of the agitator shaft 1 facing top O a plurality of transport ribs 3 are attached.
  • the transport ribs 3 have a plurality of bends A1, A2, A3 by an angle ⁇ of about 145 ° to 155 °.
  • substantially radially extending shear ribs 4 are attached to its underside U, which is opposite the upper side O.
  • the stirring body 2 is composed of a plurality of identical segments S, S '.
  • the segments S, S ' are connected to one another along joining zones F1.
  • a segment S is in the FIGS. 4 to 6 shown.
  • the segment S has at its radially inner end an angled connection section 5, which is provided with an opening 6.
  • the segment S in plan view segment-shaped segment has at its radially extending or obliquely extending radial edges by about 90 ° in the direction of the top O angled webs 7, which are made by bending or folding.
  • the webs 7 serve as joining surfaces for connecting the segment S to an adjacent segment (not shown here).
  • the connection can z. B. by rivet or welds.
  • the webs 7, 7 'of two interconnected segment S form the transport ribs 3rd
  • a connecting flange 8 is mounted, which has a plurality of further openings 9 on an imaginary circle. Each of the further openings 9 corresponds to an opening 6 of the connection section.
  • each segment S can be connected to the connecting flange 8 by means of a screw connection.
  • connection portions 5 on an underside of the connection flange 8, so that the openings 6 are aligned with the other openings 9.
  • connecting ribs 10 are provided, which are connected via connecting pieces 11 with the web 7 of the connecting piece 5.
  • the reference numeral 12 denotes a perforated annular disc, which is formed corresponding to the connecting flange 8.
  • the connection sections 5 can be fastened in a force-locking manner by means of bolts for fastening to the connecting flange 8 between the connecting flange 8 and the annular disk 12.
  • Fig. 6 shows an exploded view of a segment S.
  • the segment S is formed of a plurality of sub-segments T1, T2, T3 and T4.
  • the radial edges of each sub-segment T1, T2, T3, T4 each have a portion of the web 7, 7 '.
  • each sub-segment T1, T2, T3 and T4 has an approximately further concentric to the stirring shaft 1 extending further joining zone F2, which is formed by connecting tabs 13 and corresponding rows of holes 14 on the adjacent sub-segment T1, T2, T3 and T4.
  • Each of the sub-segments T1, T2, T3, T4 is formed similar to a U-profile.
  • a segment of a segment-like segment is formed having radial edges which bend at the angle ⁇ .
  • the S segment is characterized by excellent stability and torsional rigidity.
  • the stirring body 2 is formed in each case from segments S, which in turn consist of a stainless steel sheet having a thickness of z. B. 1.0 to 2.0 mm are formed.
  • the webs 7, 7 ' are each advantageously made by bending. They are advantageously connected to one another by means of a plurality of rivet connections, which are arranged along the extension direction of the webs 7, 7 '(not shown here).
  • the shear ribs 4 are attached to the segments S by means of spot welds or other riveted joints. - Instead of riveting Screw rivet or screw connections can also be used.
  • the stirring body is rotationally symmetrical. Its symmetry is defined in the present embodiment by an 8-fold axis of rotation. The axis of rotation corresponds to the number of identical segments.
  • the stirring body can also be equipped in a symmetry with an n-fold axis of rotation, where n is advantageously an integer value in the range between 6 and 12.
  • a stirring body 2 is shown with a hyperboloid-like shape
  • the stirring body can of course also have a different shape. It may be formed, for example, a cone or truncated cone.
  • the transport ribs 3 can also extend in a straight line in the radial direction. They can also be designed in the case of the conical or frusto-conical configuration of the stirring body 2, as shown in the illustrated embodiment.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
EP14789287.1A 2013-12-11 2014-10-27 Rührkörper zum umwälzen von in einem becken aufgenommenem abwasser und vorrichtung Active EP3079801B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14789287T PL3079801T3 (pl) 2013-12-11 2014-10-27 Korpus mieszający i urządzenie do przewracania ścieków ujętych w zbiorniku

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013225662.0A DE102013225662A1 (de) 2013-12-11 2013-12-11 Rührkörper zum Umwälzen von in einem Becken aufgenommenem Abwasser und Vorrichtung
PCT/EP2014/072936 WO2015086211A1 (de) 2013-12-11 2014-10-27 Rührkörper zum umwälzen von in einem becken aufgenommenem abwasser und vorrichtung

Publications (2)

Publication Number Publication Date
EP3079801A1 EP3079801A1 (de) 2016-10-19
EP3079801B1 true EP3079801B1 (de) 2018-01-31

Family

ID=51794880

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14789287.1A Active EP3079801B1 (de) 2013-12-11 2014-10-27 Rührkörper zum umwälzen von in einem becken aufgenommenem abwasser und vorrichtung

Country Status (17)

Country Link
US (1) US10195573B2 (zh)
EP (1) EP3079801B1 (zh)
JP (1) JP6415567B2 (zh)
KR (1) KR102250601B1 (zh)
CN (1) CN105813722B (zh)
BR (1) BR112016013454B1 (zh)
CA (1) CA2933104C (zh)
DE (1) DE102013225662A1 (zh)
DK (1) DK3079801T3 (zh)
ES (1) ES2662602T3 (zh)
HU (1) HUE036728T2 (zh)
IL (1) IL246014B (zh)
MX (1) MX370820B (zh)
PL (1) PL3079801T3 (zh)
TW (1) TWI630027B (zh)
WO (1) WO2015086211A1 (zh)
ZA (1) ZA201603622B (zh)

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Also Published As

Publication number Publication date
DK3079801T3 (en) 2018-05-07
WO2015086211A1 (de) 2015-06-18
BR112016013454B1 (pt) 2021-11-30
US10195573B2 (en) 2019-02-05
EP3079801A1 (de) 2016-10-19
TW201521862A (zh) 2015-06-16
KR102250601B1 (ko) 2021-05-11
ES2662602T3 (es) 2018-04-09
ZA201603622B (en) 2017-08-30
TWI630027B (zh) 2018-07-21
KR20160096680A (ko) 2016-08-16
MX370820B (es) 2020-01-08
CA2933104A1 (en) 2015-06-18
DE102013225662A1 (de) 2015-06-11
PL3079801T3 (pl) 2018-07-31
JP6415567B2 (ja) 2018-10-31
IL246014B (en) 2020-02-27
IL246014A0 (en) 2016-07-31
US20170001156A1 (en) 2017-01-05
JP2016539796A (ja) 2016-12-22
MX2016007481A (es) 2016-08-19
CN105813722B (zh) 2018-06-29
CN105813722A (zh) 2016-07-27
BR112016013454A2 (pt) 2017-08-08
CA2933104C (en) 2021-06-29
HUE036728T2 (hu) 2018-07-30

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