EP0289647B1 - Scheibenkneter - Google Patents

Scheibenkneter Download PDF

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Publication number
EP0289647B1
EP0289647B1 EP87112101A EP87112101A EP0289647B1 EP 0289647 B1 EP0289647 B1 EP 0289647B1 EP 87112101 A EP87112101 A EP 87112101A EP 87112101 A EP87112101 A EP 87112101A EP 0289647 B1 EP0289647 B1 EP 0289647B1
Authority
EP
European Patent Office
Prior art keywords
disc
kneading
product
scraper
elements
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
EP87112101A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0289647A1 (de
Inventor
Heinz List
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
Priority to AT87112101T priority Critical patent/ATE67427T1/de
Publication of EP0289647A1 publication Critical patent/EP0289647A1/de
Application granted granted Critical
Publication of EP0289647B1 publication Critical patent/EP0289647B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/008—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using scrapers
    • 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
    • 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
    • B01F35/90—Heating or cooling systems
    • B01F35/92—Heating or cooling systems for heating the outside of the receptacle, e.g. heated jackets or burners
    • 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
    • B01F35/90—Heating or cooling systems
    • B01F35/95—Heating or cooling systems using heated or cooled stirrers
    • 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
    • B01F35/90—Heating or cooling systems
    • B01F2035/99—Heating

Definitions

  • the invention relates to a mixer kneader for the mechanical and thermal treatment of products in a liquid, pasty and / or powdery state with a heatable cylindrical housing and a stirring shaft rotating coaxially therein, with disc elements placed at right angles, which cooperate with kneading counter elements fastened in the housing between the disc planes. as described in claim 1.
  • the present invention avoids the disadvantages by dividing the scraping of the heated pane surfaces over two scraping edges.
  • the resulting inclined position of the hook-shaped kneading counter element results on the one hand in a more scissor-like scraping effect and in a significantly larger opening inside the hook for the transport of the product.
  • the mixing and kneading effect of the principle is significantly improved by dividing the product into two different streams by means of the two scraping edges and then mixing them together again.
  • FIGS. 2 and 3 show an embodiment of the patent subject for batch operation. Part of the housing has been cut open to make the agitator shaft easier to identify.
  • the cylindrical housing 1 is provided on both sides with the end caps 2 and 3, in which the glands 4 and 5 or the lanterns 6 and 7 are fastened, in which the bearings 8 and 9 for the agitator shaft are arranged. All housing parts are provided with the heating jacket 10. The connecting pieces for the heating are designated 11 and 12.
  • the housing is provided with the filler neck 13, the emptying neck 14, and the gas discharge or gas supply neck 15.
  • the agitator shaft 16 rotates, which is supported with shaft journals in the bearings 8 and 9.
  • the disk elements 17 are fastened on the shaft 16, on each of which the approximately axially parallel or slightly inclined kneading bars 18 are fastened on the outer diameter.
  • the kneading counter-elements 20 and 21 are fastened in the housing between two disk levels of the stirrer.
  • Each of these kneading counter elements consists of a support neck 22 which is fastened in a flange 23.
  • An arm 24, which extends in an approximately axially parallel direction to the disk surface, is supported on this support neck, the distance from the housing wall being selected such that a kneading gap 25 is created, through which the kneading vanes 18 on the disk elements 17 produce the product press through.
  • the radial scraper 26 for cleaning the pane surfaces is in turn supported on this arm 24.
  • This radial scraper for the disc surfaces has the 2 scraper edges 27 and 28 and finally merges into the scraper 29 arranged at an angle to the shaft surface.
  • the scraping edge 28 takes over the cleaning of the inner part of the pane surface, from which it transports the material away from the pane surface in the axial direction through the inclined position shown, which essentially follows the arrangement of the shaft scraper 29.
  • the scraper edge 27 cleans the remaining part of the disks, whereby advantageously both the arm 24 of the kneading counter-elements and the radial arm 26 are arranged so obliquely with respect to the longitudinal section through the axis that the product there also essentially axially away from the disk surfaces and into the Space is transported between the disk surfaces or is also pressed into the kneading gap 25 by means of a radial transport component.
  • the working principle is based on the fact that the filled product is gripped by the disk surfaces 17 and the kneading blades 18 fastened thereon and transported against the kneading counter elements 21, 22.
  • the product scraped from the stirrer surfaces by the kneading counter-elements is transported on the one hand against the opposite disc surface, where it mixes with the product entrained by it, but on the other hand pressed by the kneading blade 18 into the kneading gap 25 and subjected to strong shear forces there.
  • the division of the scraper into 2 scraping edges leads to a division of the product into 2 product streams, which are mixed together again between the discs.
  • this effect is further intensified by the fact that the inclined position of the radial scraper arm 26 increasingly transports material into the kneading gap 25.
  • the inclination of the radial scraper 26 results in very large passage areas of the product within the kneading counter elements and thus avoids the build-up of certain structurally viscous products on the kneading counter elements.
  • FIG. 4 shows the cross section of the radial scraper arm 26 with the scraper edge 27 and its position in relation to the disk element 17.
  • two kneading counter elements are arranged between two disc levels, each of which cleans one of the opposing disc surfaces. More kneading counter elements can also be arranged. However, it is important to ensure that the position of the kneading bars on the disc elements relative to the kneading counter-elements is selected so that the most uniform possible power requirement is guaranteed.
  • FIG. 5 shows an example in which the first scraping edge 31 is comb-shaped, so that first strips are removed from the product surface, while the scraping edge 32 is still in shape on the surface of the pane scrapes from product adhering to rings.
  • Another simple way of dividing the scraping arm is to first remove only the upper part of the product layer with the first scraper and only with the second scraper to remove the rest of the product layer.
  • FIGS. 6 and 7 show a distributor 34, which is likewise fastened in the housing between two disc planes and serves to distribute the product on both opposite disc surfaces. This makes it possible to compress the product, which intensifies the kneading work of the kneading counter-elements for certain products.
  • FIGS. 6 and 8 show an approximately T-shaped stirring finger 35 which can be used to intensify the material movement in the cross-section between the disk surfaces which is not covered by the kneading counter-elements.
  • these stirring fingers can also be given other practical training.
  • the principle of the invention also allows the axial exchange of material in the disk kneader to be produced in a simple manner by ensuring that the kneading vanes 18 fastened on the disks 17 are axially transported so that the product is transported axially.
  • the kneading blades 18 incline a transport effect on the product, in the present case the material is guided from the outside into the center of the machine and there with the the other side can exchange product.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Accessories For Mixers (AREA)
  • Hard Magnetic Materials (AREA)
EP87112101A 1987-05-06 1987-08-20 Scheibenkneter Expired - Lifetime EP0289647B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87112101T ATE67427T1 (de) 1987-05-06 1987-08-20 Scheibenkneter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1726/87 1987-05-06
CH1726/87A CH674472A5 (enrdf_load_stackoverflow) 1987-05-06 1987-05-06

Publications (2)

Publication Number Publication Date
EP0289647A1 EP0289647A1 (de) 1988-11-09
EP0289647B1 true EP0289647B1 (de) 1991-09-18

Family

ID=4217162

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87112101A Expired - Lifetime EP0289647B1 (de) 1987-05-06 1987-08-20 Scheibenkneter

Country Status (10)

Country Link
US (1) US4824257A (enrdf_load_stackoverflow)
EP (1) EP0289647B1 (enrdf_load_stackoverflow)
JP (1) JPS63274437A (enrdf_load_stackoverflow)
AT (1) ATE67427T1 (enrdf_load_stackoverflow)
CA (1) CA1290745C (enrdf_load_stackoverflow)
CH (1) CH674472A5 (enrdf_load_stackoverflow)
DD (1) DD284610A5 (enrdf_load_stackoverflow)
DE (1) DE3773193D1 (enrdf_load_stackoverflow)
ES (1) ES2024463B3 (enrdf_load_stackoverflow)
SU (1) SU1687025A3 (enrdf_load_stackoverflow)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH679290A5 (enrdf_load_stackoverflow) * 1989-10-04 1992-01-31 List Ag
US5041249A (en) * 1989-12-26 1991-08-20 Exxon Chemical Patent Inc. Process for low-temperature elastomer finishing
DE4118884A1 (de) * 1991-06-07 1992-12-10 List Ag Mischkneter
US6310126B1 (en) * 1992-05-20 2001-10-30 Texas Encore Materials, Inc. Mixer and process for use
CH688365A5 (de) * 1995-01-18 1997-08-29 List Ag Misch- und Knetvorrichtung.
US5904697A (en) * 1995-02-24 1999-05-18 Heartport, Inc. Devices and methods for performing a vascular anastomosis
US6150498A (en) * 1996-07-12 2000-11-21 The Dow Chemical Company Polymer recovery
US6061924A (en) * 1997-03-28 2000-05-16 Rubicon Development Co. L.L.C. Batch sludge dehydrator
US6410783B1 (en) 2000-10-19 2002-06-25 Basf Corporation Method of producing carboxylic acid salts
AU2002302530A1 (en) * 2001-04-25 2002-11-18 List Ag Mixer bars cleaning in a radial or axial manner
KR20040039369A (ko) * 2001-09-18 2004-05-10 제이에스알 가부시끼가이샤 열가소성 엘라스토머 조성물 및 그의 제조 방법
DE102004054687B3 (de) * 2004-11-12 2006-06-14 Zimmer Ag Reaktor zur Behandlung hochviskoser Kunststoffschmelzen
US20100311920A1 (en) 2005-08-26 2010-12-09 Cid Centro De Investigacion Y Desarrollo Tecnologico Sa De Cv Using Reactive Block Copolymers as Chain Extenders and Surface Modifiers
US20100311849A1 (en) 2006-08-23 2010-12-09 Cid Centro De Investigacion Y Desarrollo Tecnologico Sa De Cv Using Reactive Block Copolymers as Chain Extenders and Surface Modifiers
US8065815B2 (en) * 2006-10-10 2011-11-29 Rdp Technologies, Inc. Apparatus, method and system for treating sewage sludge
US7669348B2 (en) * 2006-10-10 2010-03-02 Rdp Company Apparatus, method and system for treating sewage sludge
EP2269727A1 (de) * 2009-07-01 2011-01-05 LANXESS International SA Rohrreaktor und Verfahren zur kontinuierlichen Polymerisation
DE102012103565A1 (de) * 2012-04-24 2013-10-24 List Holding Ag Vorrichtung zum Transport von viskosen Massen und Pasten
DE102013100182A1 (de) * 2012-09-28 2014-06-05 List Holding Ag Verfahren zur Durchführung von mechanischen, chemischen und/oder thermischen Prozessen
US9908261B2 (en) * 2013-05-07 2018-03-06 Comadur S.A. Mixer, method of mixing raw material for powder metallurgy binder for injection moulding composition
JP6632549B2 (ja) 2014-08-13 2020-01-22 ベルサリス、ソシエタ、ペル、アチオニＶｅｒｓａｌｉｓ Ｓ．Ｐ．Ａ． ロータおよび攪拌装置
WO2018034352A1 (ja) * 2016-08-19 2018-02-22 国立大学法人東北大学 潜熱蓄熱装置
US20220187018A1 (en) 2019-04-02 2022-06-16 Covestro Intellectual Property Gmbh & Co. Kg Drying apparatus and use thereof and process for producing an isocyanate using the drying apparatus
EP3892951A4 (en) * 2019-12-18 2022-11-09 Aurum Process Technology, S.L. HEAT EXCHANGE DEVICE
DE102021100480A1 (de) 2021-01-13 2022-07-14 List Technology Ag Mischkneter zur Verarbeitung eines Transfergemisches zu einer Formlösung nach dem Direktlöseverfahren
DE102021100484A1 (de) 2021-01-13 2022-07-14 List Technology Ag Verfahren zur Herstellung eines Transfergemisches nach dem Direktlöseverfahren und einem Dünnschichtverdampfer
DE102021127051A1 (de) 2021-10-19 2023-04-20 List Technology Ag Mischkneter und Verfahren zur Durchführung einer Extraktion
CN113694813B (zh) * 2021-10-27 2022-02-15 如皋市井上捏和机械厂 一种捏合机泄露警报系统
TW202348633A (zh) 2022-01-31 2023-12-16 瑞士商Ｌｉｓｔ技術股份公司 使用乾溶解法將起始材料加工為成型溶液的設備和方法
EP4219567A1 (de) 2022-01-31 2023-08-02 LIST Technology AG Anlage und verfahren zur verarbeitung eines ausgangsmaterials zu einer formlösung nach dem trockenlöseverfahren
DE102022102177A1 (de) 2022-01-31 2023-08-03 List Technology Ag Anlage und Verfahren zur Verarbeitung eines Ausgangsmaterials zu einer Formlösung nach dem Trockenlöseverfahren
WO2025169102A1 (en) * 2024-02-09 2025-08-14 Comas - Costruzioni Macchine Speciali - S.P.A. Kneader and method for making a plant-based mixture

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1525681A (en) * 1924-01-12 1925-02-10 Mcgann Mfg Company Inc Drying apparatus
US2204029A (en) * 1939-09-21 1940-06-11 Charles V Russell Mixer
US2891777A (en) * 1955-03-08 1959-06-23 Pittsburgh Plate Glass Co Glass stirring mechanism
CH583061A5 (enrdf_load_stackoverflow) * 1972-10-18 1976-12-31 List Heinz
CH657069A5 (de) * 1982-10-04 1986-08-15 List Ind Verfahrenstech Heiz- und kuehlbarer scheibenruehrer.
DE3474503D1 (en) * 1983-12-05 1988-11-17 List Ind Verfahrenstech Mixing and kneading machine
EP0161679A1 (en) * 1984-05-18 1985-11-21 Firm: ALBERTO CIPELLETTI Mixing screw for ice-cream production apparatuses

Also Published As

Publication number Publication date
SU1687025A3 (ru) 1991-10-23
DD284610A5 (de) 1990-11-21
EP0289647A1 (de) 1988-11-09
ES2024463B3 (es) 1992-03-01
JPS63274437A (ja) 1988-11-11
ATE67427T1 (de) 1991-10-15
US4824257A (en) 1989-04-25
DE3773193D1 (de) 1991-10-24
CA1290745C (en) 1991-10-15
CH674472A5 (enrdf_load_stackoverflow) 1990-06-15

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