EP0906781A2 - outil de malaxage - Google Patents

outil de malaxage Download PDF

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Publication number
EP0906781A2
EP0906781A2 EP98117662A EP98117662A EP0906781A2 EP 0906781 A2 EP0906781 A2 EP 0906781A2 EP 98117662 A EP98117662 A EP 98117662A EP 98117662 A EP98117662 A EP 98117662A EP 0906781 A2 EP0906781 A2 EP 0906781A2
Authority
EP
European Patent Office
Prior art keywords
mixing
drum
elements
mixing tool
broaching
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Withdrawn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
EP98117662A
Other languages
German (de)
English (en)
Other versions
EP0906781A3 (fr
Inventor
Thomas Dr. Meyer
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.)
Gebrueder Loedige Maschinenbau GmbH
Original Assignee
Gebrueder Loedige Maschinenbau GmbH
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 Gebrueder Loedige Maschinenbau GmbH filed Critical Gebrueder Loedige Maschinenbau GmbH
Publication of EP0906781A2 publication Critical patent/EP0906781A2/fr
Publication of EP0906781A3 publication Critical patent/EP0906781A3/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Withdrawn legal-status Critical Current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
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/10—Maintenance of mixers
    • B01F35/145—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means

Definitions

  • the present invention relates to a mixing tool for fastening within a drum, the mixing arm on one rotatably mounted shaft and held on the mixing arm attached mixing body aligned to the inner surface of the drum is.
  • a mixing tool of the type mentioned has become known, for example, from DE 43 44 995 A1 .
  • Mixing tools have been known for decades and are used in largely horizontally aligned drums used to Mix bulk goods and liquid masses of any kind.
  • the Mixing tools are attached to a shaft that is rotatably mounted in the drum.
  • the mixing tools are inside the drum arranged so that the distance between the mixing tools Inner surface of the drum is low. Because of a linear expansion the material (drum and / or mixing tool) or due to the weight of the mixing tool, the Distance between mixing tool and inner drum surface shorten. Therefore there is always a safety distance between Mixing tool and drum surface formed.
  • the present invention is therefore based on the technical problem of developing a simply constructed mixing tool, the use of which means that almost all bulk goods and / or product masses which tend towards product batches can be processed without the formation of material batches in the region between the inner surface of the drum and the mixing body .
  • the mixing tool according to the invention essentially consists from a mixing body to which clearing elements are attached.
  • existing ones can therefore be used Bucket plates of known mixing tools are used which clearing elements attached at a certain angle can be.
  • the clearing elements according to the invention can all usual mixing tools are trained.
  • the clearing elements Due to the rotary movement of the shaft, the clearing elements are in moving the bulk material on the inside of the drum, so this area inside the drum is combed through the clearing elements.
  • the inside wall of the drum can therefore be kept free of batch or product.
  • the bulk material can in the area of the drum inner wall the inside surface of the drum scraped off, so to speak or wiped.
  • Several clearing elements are in one Comb, a rake, a fork or the like arranged. Through the targeted and defined intervention of several clearing elements with a certain length prevents quickly hardening products on the inside of the drum can solidify and / or attach.
  • the clearing elements make it possible to process the bulk material intensively. Depending on the type of bulk material, the clearing elements can be different Have cross-sectional shapes.
  • the free working of large areas of the inner surface of the drum is supported in that the clearing element at a Rotation of the shaft Areas of the inner surface of the drum sweeps over.
  • the clearing elements are transverse to the mixing body arranged to the radial axis of the drum. With every complete Rotation of the shaft by 360 ° sweeps over the clearing element an area on the inner surface of the drum, which in its width is determined by the length of the clearing element becomes.
  • the clearing elements have at least one distinctive mixed edge, in which solidifying batch approach.
  • Two clearing elements of another embodiment are such attached to the mixing tool that a clearing element as a result the rotational movement of the shaft after machining its machining area then through a machining area the other clearing element is performed. Own the clearing elements overlapping machining areas. Any editing area depending on the inside surface of the drum Number of clearing elements combed through several times and of product approaches exempted. The formation of solidifying Bulk batches are avoided even better. Through the Overlapping of the processing areas is prevented sawtooth-shaped product approaches on the inner surface of the drum can adhere to bulk components.
  • the broaching elements have a curvature with a radius of curvature can have, which is matched to the drum radius the distance between the mixing body or clearing element and the inner surface of the drum be kept as low as possible. It understands by itself that the possibility of product adhesion suppressed even further on the inside surface of the drum becomes.
  • one is in the direction of rotation the mixing tools rear end of a broaching element spaced further from the drum inner surface than an in Direction of rotation of the mixing tools at the front end of the clearing element.
  • the clearing elements have a material coating exhibit.
  • the material coating can also consist of a coating consist of the sticking or sticking of Bulk material components on the broaching elements are not permitted.
  • the clearing elements are minimal spaced from the inner surface of the drum.
  • the clearing elements on the inner surface of the drum issue. Therefore, it is towards the inside of the drum directed back surface of a clearing element with provided with an elastomer coating that can be used to contact the Drum inner surface is formed.
  • the clearing elements can with this flexible back surface on the inside surface of the drum apply without the movement of the mixing tool is blocked.
  • the metal clearing elements can be molded onto the mixing tool or be welded on. It would also be conceivable clearing elements attachable to the mixing body to remove elements align differently depending on the intended use and to be able to match the bulk material. It just has to be on it be made sure that the connection between the mixing body and Broaching element has sufficient strength, this can under certain circumstances, especially in the case of strongly solidifying Bulk components cause problems, so that an attachment is preferred by a welded connection.
  • the mixing tools according to the invention can be used in mixers, Dryers, reactors are used, both discontinuously as well as work continuously in which approaches products that tend to be processed.
  • a mixing tool 10 consists of a mixing body 11 and a mixing arm 12.
  • the mixing arm 12 has fastening holes, with the aid of which the mixing arm 12 can be fastened to a rotatable shaft within a drum (see FIG. 2).
  • the mixing body 11 is used to mix bulk goods within the drum.
  • the mixing body 11 In the installed state of the mixing tool 10, the mixing body 11 is aligned with and spaced from an inner drum surface. Bulk goods with bulk components that tend to harden or stick can form a bulk approach that can adhere to the inside surface of the drum.
  • the mixing tool 10 has rod-shaped broaching elements 13.
  • the broaching elements 13 are formed by square rods that are welded to an outer surface 14 of the mixing body 11. Other cross-sectional shapes and types of fastening can also be used to form the clearing elements 13.
  • the rod-shaped clearing elements 13 form a kind of comb or Rake to remove the to be able to process solidifying bulk goods.
  • the clearing elements 13 have a slight curvature that is matched to the drum radius.
  • the clearing elements 13 can therefore be as close as possible to the inside surface of the drum are moved along.
  • the clearing elements 13 are arranged on the mixing body so that a front End 15 and a rear end 16 of two clearing elements 13 a perpendicular to the longitudinal axis of the drum Cut the transverse axis 17. Processing areas of two broaching elements 13 therefore overlap, so that on the inner surface of the drum no product approach can arise that one sawtooth-shaped contour remains. Bulk areas therefore not just one, but also several clearing elements 13 moved and removed from the inner wall of the drum. Mixed edges 18 can the bulk material approach (product approach) loosen up by cutting.
  • FIG. 2 shows an interior view of a drum 20.
  • a shaft 22 is rotatably mounted on end faces 21 of the horizontally aligned drum 20.
  • a mixing arm 23 of a mixing tool 24 is attached to the shaft 22.
  • the mixing tool 24 is moved along an inner drum surface 26.
  • clearing elements 27 with a triangular cross section can scrape off solidifying and / or adhering parts of the bulk material from the drum inner surface 26.
  • the broaching elements 27 are slightly curved and fastened to a mixing body 28 with sufficient stability. The formation of a mixing edge 29 on the broaching elements 27 allows the broaching elements 27 to penetrate well into the solidifying and adhesive regions of the bulk material on the drum inner surface 26.
  • each broaching element 27 overlaps, so that the bulk material is not only machined by one broaching element 27. Sawtooth-shaped bulk material contours adhering to the inside surface of the drum 26 are avoided.
  • the clearing elements 27 are made of metal and can with be provided with an appropriate material coating in order to to achieve longer operating times.
  • the distance between the Drum inner surface 26 and the clearing elements 27 can thereby be compensated for that on the clearing elements 27 a Elastomer coating of sufficient thickness is applied.
  • These elastomer moldings can affect the inside surface of the drum 26 wipe or wipe.
  • a mixing tool 10 can be mounted within a drum become.
  • a mixing arm 12 of the mixing tool 10 can on one rotatably mounted shaft.
  • One on the mixing arm 12 attached mixing body 11 is to the drum inner surface aligned.
  • On the outer surface 14 of the mixing body 11 are one or more rod-shaped clearing elements 13 attached with a pronounced mixing edge 18.
  • a simple mixing tool was developed by using almost all miscible bulk goods and / or product masses can be processed without that it is in the area between the inner surface of the drum and the mixing body 11 can lead to the formation of product approaches.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Accessories For Mixers (AREA)
  • Confectionery (AREA)
  • Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
EP98117662A 1997-10-04 1998-09-17 outil de malaxage Withdrawn EP0906781A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19743923 1997-10-04
DE19743923A DE19743923C2 (de) 1997-10-04 1997-10-04 Mischwerkzeug

Publications (2)

Publication Number Publication Date
EP0906781A2 true EP0906781A2 (fr) 1999-04-07
EP0906781A3 EP0906781A3 (fr) 2001-03-07

Family

ID=7844616

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98117662A Withdrawn EP0906781A3 (fr) 1997-10-04 1998-09-17 outil de malaxage

Country Status (4)

Country Link
US (1) US5975753A (fr)
EP (1) EP0906781A3 (fr)
JP (1) JPH11253779A (fr)
DE (1) DE19743923C2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2592117C (fr) * 2005-01-31 2010-12-21 Louis Busick Accessoire pour lame de melange ayant des ailettes souples
DE102008063393B3 (de) * 2008-12-30 2010-06-02 Martin Hirzel Bördelrührer
US8579496B2 (en) 2010-10-05 2013-11-12 Whirlpool Corporation Stand mixer wiping beater
US8616763B2 (en) 2010-10-05 2013-12-31 Whirlpool Corporation Stand mixer wiping beater with additional features
CN112495329A (zh) * 2020-12-04 2021-03-16 徐州腾耀电气设备有限公司 一种化工反应釜电气自动控制设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1025893A (en) * 1962-01-19 1966-04-14 Loedige Wilhelm Improvements relating to mixing apparatus
FR2218133A1 (en) * 1973-02-19 1974-09-13 Bombardieri Adriano Scraper for spiral form mixers - for pastes and semi-liquids and esp. ice cream with granular and fruit segment flavourings
US5121992A (en) * 1989-10-04 1992-06-16 List Ag Mixing kneader
US5228775A (en) * 1989-05-04 1993-07-20 Blentech Corporation Reversing blender agitators
EP0761296A1 (fr) * 1995-08-24 1997-03-12 Vakumix Rühr- und Homogenisiertechnik Aktiengesellschaft Dispositif racleur

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA749229A (en) * 1966-12-27 Lodige Wilhelm Mixing or conveying element
US1156050A (en) * 1914-05-26 1915-10-12 Henry J Brierley Agitator for barrels.
DE448197C (de) * 1924-10-08 1927-08-06 Elektrotechnische Werkstaetten Ruehrwerk
US2106529A (en) * 1937-07-23 1938-01-25 Andreas R Keller Agitator for mash tanks
US2488053A (en) * 1946-10-28 1949-11-15 Damrow Brothers Company Curd treating apparatus
US3544081A (en) * 1968-03-15 1970-12-01 Hans A Eckhardt Apparatus for mixing flowable materials
US3843101A (en) * 1972-10-30 1974-10-22 C Green Flotation machine and impeller therefor
DE2852499A1 (de) * 1978-12-05 1980-06-19 Schwing Gmbh F Mischer fuer dickstoffe, z.b. fuer filterkuchen, schlaemme o.dgl.
DE3332069A1 (de) * 1983-09-06 1985-03-21 Hoechst Ag Ruehrer fuer wandnahes ruehren
DD262961A3 (de) * 1984-08-13 1988-12-21 Rinder Schweine Ausruest Ruehrwerk zum mischen von futtermitteln
JPS61143401A (ja) * 1984-12-14 1986-07-01 Kanegafuchi Chem Ind Co Ltd 塩化ビニル系樹脂の懸濁重合法
DE4115496A1 (de) * 1991-05-11 1992-11-12 Loedige Maschbau Gmbh Geb Mischwerkzeug
US5380084A (en) * 1993-11-23 1995-01-10 Astec Industries, Inc. Asphalt drum mixer with self-scouring drum
DE4344995A1 (de) * 1993-12-30 1995-07-06 Loedige Maschbau Gmbh Geb Mischwerkzeug
DE29504562U1 (de) * 1995-03-17 1995-05-11 Teka Maschinenbau Gmbh Wirbler für Zwangsmischer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1025893A (en) * 1962-01-19 1966-04-14 Loedige Wilhelm Improvements relating to mixing apparatus
FR2218133A1 (en) * 1973-02-19 1974-09-13 Bombardieri Adriano Scraper for spiral form mixers - for pastes and semi-liquids and esp. ice cream with granular and fruit segment flavourings
US5228775A (en) * 1989-05-04 1993-07-20 Blentech Corporation Reversing blender agitators
US5121992A (en) * 1989-10-04 1992-06-16 List Ag Mixing kneader
EP0761296A1 (fr) * 1995-08-24 1997-03-12 Vakumix Rühr- und Homogenisiertechnik Aktiengesellschaft Dispositif racleur

Also Published As

Publication number Publication date
DE19743923A1 (de) 1999-04-15
EP0906781A3 (fr) 2001-03-07
DE19743923C2 (de) 2000-06-15
US5975753A (en) 1999-11-02
JPH11253779A (ja) 1999-09-21

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