EP1121309B1 - Dispositif pour doser et/ou melanger des materiaux hautement visqueux et non coulants - Google Patents

Dispositif pour doser et/ou melanger des materiaux hautement visqueux et non coulants Download PDF

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Publication number
EP1121309B1
EP1121309B1 EP99947169A EP99947169A EP1121309B1 EP 1121309 B1 EP1121309 B1 EP 1121309B1 EP 99947169 A EP99947169 A EP 99947169A EP 99947169 A EP99947169 A EP 99947169A EP 1121309 B1 EP1121309 B1 EP 1121309B1
Authority
EP
European Patent Office
Prior art keywords
funnel
pump
twin worm
dosing
worm
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
EP99947169A
Other languages
German (de)
English (en)
Other versions
EP1121309A1 (fr
Inventor
Roland Halter
Achim Sturm
Bernhard Stalder
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.)
Buehler AG
Original Assignee
Buehler 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 Buehler AG filed Critical Buehler AG
Publication of EP1121309A1 publication Critical patent/EP1121309A1/fr
Application granted granted Critical
Publication of EP1121309B1 publication Critical patent/EP1121309B1/fr
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
    • B01F29/00—Mixers with rotating receptacles
    • B01F29/80—Mixers with rotating receptacles rotating about a substantially vertical axis
    • B01F29/85—Mixers with rotating receptacles rotating about a substantially vertical axis with helices, e.g. rotating about an inclined 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
    • B01F35/75—Discharge mechanisms
    • B01F35/754—Discharge mechanisms characterised by the means for discharging the components from the mixer
    • B01F35/7544—Discharge mechanisms characterised by the means for discharging the components from the mixer using pumps
    • 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
    • B01F35/75—Discharge mechanisms
    • B01F35/754—Discharge mechanisms characterised by the means for discharging the components from the mixer
    • B01F35/75455—Discharge mechanisms characterised by the means for discharging the components from the mixer using a rotary discharge means, e.g. a screw beneath the receptacle
    • 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
    • B01F35/75—Discharge mechanisms

Definitions

  • the present invention relates to a device for dosing and / or for mixing of highly viscous and non-flowable materials, especially pigment pastes.
  • the device is used in continuous and closed systems, especially for dosing the highly viscous and non-flowable materials in an extruder.
  • the material can be added in a continuously working and closed system, for example using a Buhler pump SRB-83076, whereby the paste-like mass has to be pressed into the pump from a funnel, since it is only poorly sucked in by the pump itself. This can be done by a slide or an auger. It has been shown that sticky, non-flowing pastes stick the funnel and feed elements (feed screws, slide). The glued paste can only be detached from the elements by stripping. According to the principle of the invention, all parts in contact with the product should strip each other and at the same time press the material into the pump. For pastes that only get a pumpable consistency by shearing, such as pigment press cake, the material should be sheared by the stripping elements. Some devices for dosing, possibly filling or discharging the goods are known from the prior art.
  • German publication No. 1 180 321 discloses a silo with a discharge device, which has a rotatable bottom surface with driver strips, so that a considerable Part of the fuel in the silo is turned.
  • a discharge device becomes a snail that lies directly over the contact surface is arranged, and arranged radially from the center of the bottom to an outside of the silo Delivery line system that conveys material used.
  • Austrian Patent No. 217959 is a device for discharge described by masses from silos and the like.
  • a cylindrical container with a an emptying opening is provided towards the center of the inclined floor.
  • a radial arranged snail circles around the container means and brushes the entire Container bottom.
  • the screw spiral leads another rotary movement around its own longitudinal axis.
  • German publication DE 3304026 A1 discloses a silo with a discharge device, which has a screw that moves so that the silo is moved against a feeder. When used as a distribution device the snail is driven in the opposite sense. In contrast, is at the top a conveyor shaft arranged a further screw, which is opposite the Conveyor shaft can be pivoted vertically and rotated in it.
  • French Patent No. 1572866 describes a metering funnel with a Device for dosing powder material which is difficult to flow.
  • a material grant consisting of a transport screw and a dosing screw on the one hand for loosening up and on the other hand for dosing the powdery material.
  • the loosening of the material takes place through the whole Hopper-extending, upward-conveying transport screw with leaves or blades is provided with the material inside by the transport screw of the funnel is moved a little from the bottom up, but then inside of the funnel falls further down or higher from the leaves / blades, which ultimately leads to a certain loosening of the material.
  • the dosage and further promotion of this loosened material takes place through the down promotional dosing screw, which is not inside the actual funnel, but inside a cylindrical sleeve at the funnel outlet below the actual one Funnel stretches.
  • the axes of the transport screw and the metering screw are inserted into each other and therefore identical and form with a cone surface line the funnel an acute angle. This does with increasing height in the funnel Blades / blades getting bigger with the loosening screw necessary so that at least when turning the transport screw get close to the tapered surface area to in the rotating funnel capture and loosen at least a large part of the entire material.
  • Russian Patent No. 173584 describes a device with one Funnel and a screw conveyor lying parallel to the inner wall of the funnel, whereby the funnel can rotate about its axis. This device is used to move abrasive or ceramic masses in powder form. While transporting pasty, sticky masses would stick this snail.
  • the German disclosure DE 3029684 A1 relates to a mixing and filtration apparatus, in which a thickened suspension by means of a predominantly after twin shaft screw conveying above is constantly moved and circulated.
  • This Double-shaft screw is self-cleaning, but cleaning the inner conical surface of the apparatus by stripping by means of the twin screw not provided.
  • Swirling etc. is important, which in the case of the thickened but still flowable Suspension in the apparatus is easily the case.
  • the two worm shafts extendable by flexible, elastic attachments or wings that rotate create an inner surface of the apparatus and loosen the filter cake or smooth out.
  • the object of the present invention is to maintain a constant dosage of highly viscous and non-flowable materials, e.g. Pigment concentrates of all Type (pigment press cake, offset pastes, offset concentrates, flush pastes), aerosil pastes, Steel engraving colors, all types of putty, gel pastes, gelled binders, etc. to ensure.
  • Pigment concentrates of all Type pigment press cake, offset pastes, offset concentrates, flush pastes
  • aerosil pastes e.g. Pigment press cake, offset pastes, offset concentrates, flush pastes
  • aerosil pastes e.g. Pigment press cake, offset pastes, offset concentrates, flush pastes
  • Steel engraving colors e.g., clumping of bricks, possibly bridging
  • the object of the invention is achieved with the features of claim 1.
  • the invention is based on the above-mentioned funnel, which is used as a metering device is the closest prior art.
  • the task becomes solved that a double screw is arranged inside the funnel, and itself the funnel rotates around its own vertical axis.
  • the snail currently replaces it used slide, possibly wipers, mostly on the inner wall of the funnel are arranged.
  • the snails brush against each other and the funnel wall constantly off. By rotating the funnel, the product from the whole Funnel wall stripped again and again.
  • the distance between the inner wall of the funnel and the Double screw is in the range 0-3 cm.
  • the conveying capacity of the twin screws is higher than the conveying capacity the pump is.
  • the rotational frequencies of the screw are in the range of 20-100 rpm and of the funnel are in the range 1-5 / min.
  • the materials arrive e.g. from containers or by means of suitable transport devices, both not visible, into a funnel 2.
  • Promotion of the product downwards in the direction of the product outlet opening 4 takes place on the one hand in proportion small extent, by the rotating funnel 2 itself, on the other hand by the Twin screw 1.
  • the screw has two functions, namely wiping and promoting the product.
  • the stripping of the funnel on the inner wall 6 glued pasty mass is caused by the mutual rotations of the funnel 2 and causes the screws 1a, 1b. These rotations can be coordinated may be regulated. It has been shown that the material rotates in the same direction Operation in Fig. 2 is strongly sheared and within a few minutes entire material contained in the funnel 2 is mixed.
  • Fig. 2 shows the individual screws 1a, 1b, which are driven in the same direction or in opposite directions. These rotations convey the product downwards in the direction of the product outlet opening 4 in FIG. 1 and at the same time shear it.
  • This arrangement has the effect that all parts of the device, including the funnel wall, wipe off one another and, if necessary, clean themselves.
  • the delivery capacity of the twin screw 1 is higher than the delivery capacity of the pump.
  • the product then backs up into funnel 2.
  • Full-leaf and concave snails are particularly suitable for the present device.
  • the Bühler pump SRB-83076 is also used.

Claims (8)

  1. Dispositif pour le dosage et/ou le mélange de matières fortement visqueuses et non liquides, en particulier de pâtes de pigments, avec un entonnoir qui peut tourner autour de son propre axe, et un moyen de convoyage de matière installé dans l'entonnoir, qui s'étend dans la zone de la paroi interne de l'entonnoir, caractérisé en ce que le moyen de transport de matière est une double vis (1) consistant en deux vis (1a, 1b), s'étend le long de la paroi interne (6) de l'entonnoir jusqu'à un orifice de sortie de produit (4) à l'extrémité inférieure et est guidé jusqu'au dispositif sous l'entonnoir (2) à travers un bâti (3) jusqu'à une pompe (5), la capacité de convoyage de la double vis (1) étant plus élevée que la capacité de convoyage de la pompe (5), toutes les pièces (1a, 1b, 2) venant en contact avec la matière pendant le fonctionnement se raclant mutuellement en permanence et poussant en même temps la matière dans la pompe (5).
  2. Dispositif selon la revendication 1, caractérisé en ce que l'écartement entre la paroi interne (6) de l'entonnoir (et de la double vis (1) se situe dans unefourchette de 0 à 3 cm.
  3. Dispositif selon une des revendications précédentes, caractérisé en ce que les vis (1a, 1b de la double vis (1) sont entraínées dans le même sens.
  4. Dispositif selon une des revendications 1 à 2, caractérisé en ce que les vis (1a, 1b) de la double vis (1) sont entraínées en sens contraire.
  5. Dispositif selon une des revendications précédentes, caractérisé en ce que la double vis (1) est entraínée dans le même sens ou en sens contraire par rapport à l'entonnoir (2).
  6. Dispositif selon une des revendications précédentes, caractérisé en ce que les fréquences de rotation de la vis se situent dans une fourchette de 20 à 100 r./mn et celles de l'entonnoir dans une fourchette de 1 à 5 r./mn
  7. Extrudeuse avec un dispositif selon une des revendications précédentes.
  8. Système fermé fonctionnant en continu avec un dispositif selon une des revendications 1 à 7.
EP99947169A 1998-10-14 1999-10-14 Dispositif pour doser et/ou melanger des materiaux hautement visqueux et non coulants Expired - Lifetime EP1121309B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19847241A DE19847241B4 (de) 1998-10-14 1998-10-14 Vorrichtung zum Dosieren oder Austragen von Presskuchen, insbesondere Pigment-Presskuchen oder anderen Stoffen
DE19847241 1998-10-14
PCT/CH1999/000485 WO2000021863A1 (fr) 1998-10-14 1999-10-14 Dispositif pour doser et/ou melanger des materiaux hautement visqueux et non coulants

Publications (2)

Publication Number Publication Date
EP1121309A1 EP1121309A1 (fr) 2001-08-08
EP1121309B1 true EP1121309B1 (fr) 2002-11-27

Family

ID=7884368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99947169A Expired - Lifetime EP1121309B1 (fr) 1998-10-14 1999-10-14 Dispositif pour doser et/ou melanger des materiaux hautement visqueux et non coulants

Country Status (8)

Country Link
US (1) US6520671B1 (fr)
EP (1) EP1121309B1 (fr)
JP (1) JP4468582B2 (fr)
AT (1) ATE228467T1 (fr)
AU (1) AU6075199A (fr)
DE (2) DE19847241B4 (fr)
ES (1) ES2188243T3 (fr)
WO (1) WO2000021863A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080037361A1 (en) * 2006-02-15 2008-02-14 Jerry Fleishman Mixer apparatus
EP1929872A1 (fr) * 2006-12-08 2008-06-11 Bühler AG Concentré levain-chef et sa fabrication
US8188383B2 (en) * 2008-10-10 2012-05-29 Ishida Co., Ltd. Combination weighing apparatus with conveyor apparatus having coaxial sprial members
CN104841298B (zh) * 2014-02-14 2018-08-10 沈如华 一种全自动调色机既大量注浆又微量注浆的方法及装置
CN104941485A (zh) * 2015-06-09 2015-09-30 安徽国能亿盛环保科技有限公司 一种废弃物搅拌器
CN107263907A (zh) * 2017-07-19 2017-10-20 望谟县布依王油脂有限公司 一种菜籽油冷轧用冷渣机
CN111392260A (zh) * 2020-03-26 2020-07-10 王均新 一种固体粉末原料储存装置

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US2345063A (en) * 1939-11-13 1944-03-28 Nauta Johannes Ewardus Mixing apparatus, especially adapted for mixing pulverized materials
DE829422C (de) * 1950-03-01 1952-01-24 Bayer Ag Vorrichtung zum Dosieren
US2831663A (en) * 1954-05-29 1958-04-22 Nauta Johannes Ewardus Mixing device with a conical mixing vessel and at least two revolving mixing members
US2893709A (en) * 1955-12-20 1959-07-07 Nauta Johannes Ewardus Device for working material in at least two conical vessels
AT217959B (de) * 1960-02-02 1961-11-10 Leonhard Kaesweber Vorrichtung zum Austragen von aufgeschütteten Massen aus Silos, Bunkern od. dgl. Behältern
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Also Published As

Publication number Publication date
US6520671B1 (en) 2003-02-18
DE19847241B4 (de) 2004-09-09
EP1121309A1 (fr) 2001-08-08
AU6075199A (en) 2000-05-01
DE19847241A1 (de) 2000-04-20
JP4468582B2 (ja) 2010-05-26
JP2002527228A (ja) 2002-08-27
ATE228467T1 (de) 2002-12-15
DE59903593D1 (de) 2003-01-09
ES2188243T3 (es) 2003-06-16
WO2000021863A1 (fr) 2000-04-20

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