EP0804278B1 - Misch- und knetvorrichtung - Google Patents

Misch- und knetvorrichtung Download PDF

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Publication number
EP0804278B1
EP0804278B1 EP96901295A EP96901295A EP0804278B1 EP 0804278 B1 EP0804278 B1 EP 0804278B1 EP 96901295 A EP96901295 A EP 96901295A EP 96901295 A EP96901295 A EP 96901295A EP 0804278 B1 EP0804278 B1 EP 0804278B1
Authority
EP
European Patent Office
Prior art keywords
mixing
kneading
shaft
elements
housing
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.)
Expired - Lifetime
Application number
EP96901295A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0804278A1 (de
Inventor
Jörg M. LIST
Walther Schwenk
Alfred Kunz
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.)
List AG
Original Assignee
List 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 List AG filed Critical List AG
Publication of EP0804278A1 publication Critical patent/EP0804278A1/de
Application granted granted Critical
Publication of EP0804278B1 publication Critical patent/EP0804278B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
    • B01F27/707—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms the paddles co-operating, e.g. intermeshing, with elements on the receptacle wall

Definitions

  • the invention relates to a mixing and kneading device for the particular thermal treatment of products in liquid, pasty and / or powdery state with or without supply and discharge of gases and vapors in one housing, in which a shaft rotates on the disc segments or the like.
  • Disc-like elements are arranged which with interacting kneading counter elements fixed on the housing, being between the kneading counter elements or the kneading counter elements and an open space for the disc segments (Torusraum) is formed, in which a plurality of mixing arms intervene from the shaft.
  • Such mixing and kneading devices are, for example, from the DE-PS 23 49 106 or the US-PS 3,687,422 known. These arrangement shown already guarantees a very good Mixing and kneading effect. Furthermore, product increments on, in particular, heated device elements, such as a shaft, Housing wall, disc segments and the like. Avoided effectively.
  • Ep-A-0 220 575 is a mixing and kneading device known in a toroidal space between two kneading counter elements a single mixing arm engages. From DE-C-36 35 877, however, a mixer dryer is known in which of the shaft that also carries the disc segments, one A plurality of mixing arms of different designs in engage a toroidal space between two disc segments.
  • the present invention is based on the object To improve the mixing and kneading effect in the torus area.
  • the mixing arms result in succession are designed around the shaft that through them essentially the entire toroidal axial cross section is processed.
  • the different design of the mixing arms is said to be so take place that by means of relatively slim mixing arms the entire Torus space is processed. That is, it will be inside Avoided areas of the Torusraum not processed, whereby the mixing and kneading effect is significantly improved. This results in a more even distribution of the Product because there are more elements that make up the product move. This also improves the mixing effect. Furthermore, it is avoided that mixing arms are only ever on one predetermined path move, it being, for example, a Torus collapses, then to significant force peaks for the wave is coming. Because of the different Design of the mixing arms, the product is evenly in distributed to the machine, so that the force absorption of the shaft is evened out.
  • Each mixing arm preferably consists of one stem and one Crossbar.
  • the trunk has a different length.
  • the Trunk also have the same length and up to about Project in the middle of the torus area. But the crossbar is against it of mixing arms within an annular Torus space designed differently. He can be weird be employed, rotated, curved, twisted, Z or S-shaped od. Like .. Many configurations are conceivable here, which are intended to be encompassed by the invention.
  • FIG drum-shaped housing 1 A mixing and kneading device according to FIG drum-shaped housing 1 shown, in which a shaft 2 turns. On this shaft 2 are spaced apart Disc segments 3 arranged near an inner wall 4th of the housing 1 of a kneading bar 5.
  • scraper arm 10 merges into a shaft arm 11, which in turn is approximately parallel to shaft 2 and axially parallel to Longitudinal axis A runs counter to the kneading arm 9.
  • Scraper arm 10 and shaft arm 11 essentially have the task Product incrustations on the disc segments 3 and Prevent wave 2 as these two elements of a kneading and Mixing device are usually heated.
  • the Kneading bar 5 also has this task compared to Inner wall 4, wherein the kneading bar 5 additionally Performs product kneading in the kneading gaps 6.
  • the crossbar 16 is always of the same design, but the stem 15 has different lengths l 1 , l 2 and l 3 for different mixing arms 14.1, 14.2 and 14.3 within an annular toroidal space 12.
  • This makes it possible to machine the entire toroidal space 12 with one revolution of the shaft 2, so that there are no dead zones within the toroidal space 12 in which the product could possibly remain.
  • the product is kept in motion, product incrustation is reduced and the kneading effect is significantly improved.
  • there is a reduction in force absorption peaks when the shaft 2 is rotated since the product is always processed by at least two mixing arms 14. For the subsequent mixing arm there is no possibility to drive through the product in the same lane that was created by the leading mixing arm.
  • the trunk 15 always has the same length so that it is roughly in the middle of the toroid 12 ends. It is indicated in FIG. 3 that the crossbar 16 do not, as shown in Figure 1, run axially parallel must be arranged, but inclined to the longitudinal axis A. can. Then within an annular toroidal space different crossbars shown with themselves Alternate crossbars running parallel to the axis.
  • crossbars can, however, as in FIGS. 4 and 5 shown to be wavy or S-shaped. Conceivable are also C-shaped crossbars or those that zigzag run. This depends on the person to be treated Product.
  • torus 12 is only indicated by dashed lines.
  • a finger-shaped mixing arm 14.7 engages in it Querfinger points 17 times to the left and once to the right and whose trunk 15.7 has a different length.
  • the cross section of the element that appears important drive through the product includes the Mixing arm 14 but also the kneading bar 5, an edge of the Disc segment 3 and the kneading counter element 7.
  • Preferred the cross-section is ploughshare-like, this being the case a simple triangular cross section according to FIG. 8 can.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Accessories For Mixers (AREA)
EP96901295A 1995-01-18 1996-01-18 Misch- und knetvorrichtung Expired - Lifetime EP0804278B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH136/95 1995-01-18
CH00136/95A CH688365A5 (de) 1995-01-18 1995-01-18 Misch- und Knetvorrichtung.
PCT/EP1996/000189 WO1996022156A1 (de) 1995-01-18 1996-01-18 Misch- und knetvorrichtung

Publications (2)

Publication Number Publication Date
EP0804278A1 EP0804278A1 (de) 1997-11-05
EP0804278B1 true EP0804278B1 (de) 1998-12-16

Family

ID=4180075

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96901295A Expired - Lifetime EP0804278B1 (de) 1995-01-18 1996-01-18 Misch- und knetvorrichtung

Country Status (10)

Country Link
US (1) US5934801A (da)
EP (1) EP0804278B1 (da)
AT (1) ATE174528T1 (da)
AU (1) AU691078B2 (da)
CA (1) CA2210639A1 (da)
CH (1) CH688365A5 (da)
DE (1) DE59600991D1 (da)
DK (1) DK0804278T3 (da)
ES (1) ES2126380T3 (da)
WO (1) WO1996022156A1 (da)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9394626B2 (en) 2009-08-11 2016-07-19 List Holding Ag Method for treating a monomer, pre-polymer, polymer or a corresponding mixture

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2174045C2 (ru) * 1999-03-23 2001-09-27 ООО "Технологии в Сибири" Роторный кавитационный аппарат
DE19940521C2 (de) * 1999-08-26 2003-02-13 List Ag Arisdorf Mischkneter
EP1399305A2 (en) * 2000-04-05 2004-03-24 Advanced Concrete Innovations, Inc. Portable concrete plant
US6991361B2 (en) * 2000-04-05 2006-01-31 Advanced Concrete Innovations, Inc. Portable concrete plant
US6410783B1 (en) 2000-10-19 2002-06-25 Basf Corporation Method of producing carboxylic acid salts
CN1241679C (zh) * 2001-04-25 2006-02-15 利斯特股份公司 混合机径向或轴向自洁杆件
DE10331952A1 (de) * 2003-07-15 2005-02-10 Degussa Ag Vorrichtung und Verfahren zur diskontinuierlichen Polykondensation
DE102010060320A1 (de) 2010-06-30 2012-02-16 List Holding Ag Verfahren zur thermischen Trennung einer Lösung aus thermoplastischen polymer und Lösungsmittel
DE102013100182A1 (de) * 2012-09-28 2014-06-05 List Holding Ag Verfahren zur Durchführung von mechanischen, chemischen und/oder thermischen Prozessen
CN103432949A (zh) * 2013-07-31 2013-12-11 南京化工特种设备检验检测研究所 高效低耗搅拌器
DE102014112579A1 (de) 2013-08-30 2015-03-05 List Holding Ag Verfahren zum Herstellen einer chemischen Substanz
WO2015189864A1 (en) * 2014-06-12 2015-12-17 Hedinn Hf. Apparatus for cooking and drying organic material
BR112017002273B1 (pt) 2014-08-13 2022-05-03 Versalis S.P.A. Rotor, dispositivo de agitação, método para preparar lâmina de rotor formada ou lâmina de estator formada de aerofólio e método para preparar o aerofólio formado da lâmina de rotor ou lâmina de estator

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB793457A (en) * 1954-04-06 1958-04-16 Loedige Wilhelm Improvements relating to the mixing of materials
GB793456A (en) * 1955-05-31 1958-04-16 John Frederick William Harvey Improvements in automatic adjustment mechanism for hydraulic brakes
CH506322A (de) * 1969-03-17 1971-04-30 List Heinz Mehrspindelige Misch- und Knetmaschine
DE2123956C3 (de) * 1970-05-20 1979-09-20 Heinz Dipl.-Ing. Pratteln List (Schweiz) Misch- und Knetmaschine
CH583061A5 (da) * 1972-10-18 1976-12-31 List Heinz
DE3474503D1 (en) * 1983-12-05 1988-11-17 List Ind Verfahrenstech Mixing and kneading machine
DE3538070A1 (de) * 1985-10-25 1987-04-30 Krauss Maffei Ag Misch- und knetvorrichtung
DE3635877C1 (de) * 1986-10-22 1987-10-15 Heinz Nienhaus Mischtrockner
CH672749A5 (da) * 1986-12-19 1989-12-29 List Ag
CH674472A5 (da) * 1987-05-06 1990-06-15 List Ag
CH674318A5 (da) * 1987-08-28 1990-05-31 List Ag
CH678285A5 (da) * 1988-02-16 1991-08-30 List Ag
CH680196A5 (da) * 1988-02-16 1992-07-15 List Ag
CH686406A5 (de) * 1990-04-11 1996-03-29 List Ag Kontinuierlich arbeitender Mischkneter.
DE4118884A1 (de) * 1991-06-07 1992-12-10 List Ag Mischkneter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9394626B2 (en) 2009-08-11 2016-07-19 List Holding Ag Method for treating a monomer, pre-polymer, polymer or a corresponding mixture

Also Published As

Publication number Publication date
DK0804278T3 (da) 1999-08-23
AU4537396A (en) 1996-08-07
CH688365A5 (de) 1997-08-29
AU691078B2 (en) 1998-05-07
US5934801A (en) 1999-08-10
DE59600991D1 (de) 1999-01-28
ATE174528T1 (de) 1999-01-15
ES2126380T3 (es) 1999-03-16
CA2210639A1 (en) 1996-07-25
EP0804278A1 (de) 1997-11-05
WO1996022156A1 (de) 1996-07-25

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