EP0079396A1 - Hélices pour mélangeur et agitateur rotatif - Google Patents

Hélices pour mélangeur et agitateur rotatif Download PDF

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Publication number
EP0079396A1
EP0079396A1 EP81109661A EP81109661A EP0079396A1 EP 0079396 A1 EP0079396 A1 EP 0079396A1 EP 81109661 A EP81109661 A EP 81109661A EP 81109661 A EP81109661 A EP 81109661A EP 0079396 A1 EP0079396 A1 EP 0079396A1
Authority
EP
European Patent Office
Prior art keywords
mixing
propeller
constant
tool
point
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.)
Withdrawn
Application number
EP81109661A
Other languages
German (de)
English (en)
Inventor
Hans Kimmel
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP81109661A priority Critical patent/EP0079396A1/fr
Publication of EP0079396A1 publication Critical patent/EP0079396A1/fr
Withdrawn legal-status Critical Current

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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
    • B01F27/112—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades
    • B01F27/1123—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades sickle-shaped, i.e. curved in at least one direction

Definitions

  • Mixing and stirring tools rotating around an axis of rotation in particular for mixers and stirrers in chemical process engineering, have so far only been determined in their shape according to certain influences which they are intended to exert on the material to be treated.
  • Mixing tools are already known which produce certain desired flow conditions in the container holding the material to be treated.
  • Other known mixing tools and their associated drive are dimensioned such that the same impact speeds prevail at all points where the material to be treated and the mixing tool collide.
  • the invention has for its object to provide a mixing or stirring tool of the type mentioned, which wears evenly in operation at all points where it comes into contact with the material to be treated.
  • F is an arbitrary function of r, ⁇ and z.
  • a mixing or stirring tool according to the present invention has such a surface curvature that the partial derivatives of the surface function are constant, ie independent of r, ⁇ and z, according to the coordinate running in the axis of rotation z and the coordinate ⁇ , or in other words and are the same size in every point of the mixing or stirring tool, although of course from can distinguish.
  • FIG. 1 shows this in a perspective view
  • FIG. 2 shows the geometric shape of the upper or lower boundary line of a mixing blade of the mixing tool according to FIG. 1.
  • the mixing tool according to FIG. 1 is intended to set the mixture in a mixing container in such a way that the components of the mixture movement running parallel to the axis of rotation of the mixing tool are constant over the radius.
  • the wear of the mixing tool should be the same at all points in order to achieve the object on which the invention is based.
  • the mixing tool shown has two mixing blades 1. These mixing blades are attached to a hub 2, the radius of which is r 0 .
  • the impingement surfaces 3 of the mixing blades are inclined relative to the horizontal in such a way that when the mixing tool rotates in the direction of arrow A, a movement component is generated in the mix that is parallel to the rotation axis and is directed upwards.
  • each impact surface 3 is defined according to FIG. 2 by a circular involute, the beginning of which lies on the hub 2 with the radius r 0 .
  • the screw line is designated C in Fig. 1.
  • the involute line can also be curved in the opposite direction and / or the screwing direction can also be reversed. In any case, the above two requirements for the properties of the mixing tool are met.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
EP81109661A 1981-11-12 1981-11-12 Hélices pour mélangeur et agitateur rotatif Withdrawn EP0079396A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP81109661A EP0079396A1 (fr) 1981-11-12 1981-11-12 Hélices pour mélangeur et agitateur rotatif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP81109661A EP0079396A1 (fr) 1981-11-12 1981-11-12 Hélices pour mélangeur et agitateur rotatif

Publications (1)

Publication Number Publication Date
EP0079396A1 true EP0079396A1 (fr) 1983-05-25

Family

ID=8188011

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81109661A Withdrawn EP0079396A1 (fr) 1981-11-12 1981-11-12 Hélices pour mélangeur et agitateur rotatif

Country Status (1)

Country Link
EP (1) EP0079396A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2157185A (en) * 1984-04-11 1985-10-23 Gen Signal Corp Mixing systems
GB2192807A (en) * 1986-07-18 1988-01-27 Nat Res Dev Impellers
EP0323375A1 (fr) * 1987-12-30 1989-07-05 MORITZ, Société Anonyme Mobile d'agitation pour appareils de mélange de produits pulvérulents, pâteux ou granuleux
US7473025B1 (en) * 2008-01-31 2009-01-06 Spx Corporation Mixing impeller with spiral leading edge
EP2364770A1 (fr) * 2010-03-11 2011-09-14 TEKA Maschinenbau GmbH Outil pour dispositif de mélange

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE654034C (de) * 1936-02-16 1937-12-09 Paul Theodor Arnemann Dipl Ing Vorrichtung zum Mischen von Fluessigkeiten sowie festen und fluessigen Stoffen
US2794628A (en) * 1954-09-29 1957-06-04 Eastman Kodak Co Propeller agitators and the dispersing of materials therewith
DE2356008B2 (de) * 1972-11-13 1976-11-04 Scan Blandningsteknik AB, Täby (Schweden) Propeller
DE2624991A1 (de) * 1975-06-04 1976-12-16 Procedes Sem Fluegelruehrer
DE2627201A1 (de) * 1975-06-18 1976-12-30 Entat Marcel Propeller, insbesondere fuer mischer
DE2525362B2 (de) * 1975-06-06 1977-03-31 Günther Papenmeier KG, Maschinen- und Apparatebau; Kimmel, Hans; 4930 Detmold Mischfluegel an einem rotierenden mischwerkzeug
DE2503838B2 (de) * 1975-01-30 1981-04-23 Hans 4930 Detmold Kimmel Mischflügel

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE654034C (de) * 1936-02-16 1937-12-09 Paul Theodor Arnemann Dipl Ing Vorrichtung zum Mischen von Fluessigkeiten sowie festen und fluessigen Stoffen
US2794628A (en) * 1954-09-29 1957-06-04 Eastman Kodak Co Propeller agitators and the dispersing of materials therewith
DE2356008B2 (de) * 1972-11-13 1976-11-04 Scan Blandningsteknik AB, Täby (Schweden) Propeller
DE2503838B2 (de) * 1975-01-30 1981-04-23 Hans 4930 Detmold Kimmel Mischflügel
DE2624991A1 (de) * 1975-06-04 1976-12-16 Procedes Sem Fluegelruehrer
DE2525362B2 (de) * 1975-06-06 1977-03-31 Günther Papenmeier KG, Maschinen- und Apparatebau; Kimmel, Hans; 4930 Detmold Mischfluegel an einem rotierenden mischwerkzeug
DE2627201A1 (de) * 1975-06-18 1976-12-30 Entat Marcel Propeller, insbesondere fuer mischer

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2157185A (en) * 1984-04-11 1985-10-23 Gen Signal Corp Mixing systems
GB2192807A (en) * 1986-07-18 1988-01-27 Nat Res Dev Impellers
US4799862A (en) * 1986-07-18 1989-01-24 National Research Development Corporation Impellers
GB2192807B (en) * 1986-07-18 1990-07-25 Nat Res Dev Impellers
EP0323375A1 (fr) * 1987-12-30 1989-07-05 MORITZ, Société Anonyme Mobile d'agitation pour appareils de mélange de produits pulvérulents, pâteux ou granuleux
FR2625449A1 (fr) * 1987-12-30 1989-07-07 Moritz Mobile d'agitation pour appareils de melange de produits pulverulents, pateux ou granuleux
US4941750A (en) * 1987-12-30 1990-07-17 Societe Anonyme: Moritz Moving agitator member for apparatus for mixing substances in powder, paste, or granular form
US7473025B1 (en) * 2008-01-31 2009-01-06 Spx Corporation Mixing impeller with spiral leading edge
EP2364770A1 (fr) * 2010-03-11 2011-09-14 TEKA Maschinenbau GmbH Outil pour dispositif de mélange

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19820818

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Effective date: 19840703