FR2760978A1 - Vertical mixer e.g. for products in powder or paste form, e.g. flour - Google Patents

Vertical mixer e.g. for products in powder or paste form, e.g. flour Download PDF

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Publication number
FR2760978A1
FR2760978A1 FR9703328A FR9703328A FR2760978A1 FR 2760978 A1 FR2760978 A1 FR 2760978A1 FR 9703328 A FR9703328 A FR 9703328A FR 9703328 A FR9703328 A FR 9703328A FR 2760978 A1 FR2760978 A1 FR 2760978A1
Authority
FR
France
Prior art keywords
screw
outlet
products
tank
tube
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.)
Granted
Application number
FR9703328A
Other languages
French (fr)
Other versions
FR2760978B1 (en
Inventor
Alain Jean Yves Christien
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.)
Rapidex Inc
Original Assignee
Rapidex Inc
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 Rapidex Inc filed Critical Rapidex Inc
Priority to FR9703328A priority Critical patent/FR2760978B1/en
Publication of FR2760978A1 publication Critical patent/FR2760978A1/en
Application granted granted Critical
Publication of FR2760978B1 publication Critical patent/FR2760978B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B01F23/565—Mixing liquids with solids by introducing liquids in solid material, e.g. to obtain slurries
    • 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
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/86—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis co-operating with deflectors or baffles fixed to the receptacle
    • B01F27/861—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis co-operating with deflectors or baffles fixed to the receptacle the baffles being of cylindrical shape, e.g. a mixing chamber surrounding the stirrer, the baffle being displaced axially to form an interior mixing chamber
    • 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
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/92—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws
    • B01F27/921—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws with helices centrally mounted in the receptacle
    • B01F27/9211—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws with helices centrally mounted in the receptacle the helices being surrounded by a guiding tube
    • 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
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F2035/35—Use of other general mechanical engineering elements in mixing devices
    • B01F2035/351—Sealings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/60—Mixing solids with solids

Abstract

The mixer consists of a chamber (1) which is cylindrical at the top and conical at the bottom, where it has an outlet (2), and contains a spiral auger (4) inside a vertical tube (5) with an aperture (7) at the top but not extending as far as the outlet end of the chamber. The lower section (4a) of the auger (4) extends beyond the lower end of the tube (5) and into a cylindrical outlet (8) where it is sealed e.g. by an inner sleeve. The mixed product is able to pass through the outlet while the auger rotates, but is blocked inside the outlet once the auger drive motor (6) is stopper.

Description

La présente invention est relative à des perfectionnements aux mélangeurs verticaux du genre de ceux utilisés, par exemple, pour mélanger des produits pulvérulents et, ou, pâteux tels que des farines. The present invention relates to improvements in vertical mixers of the kind used, for example, for mixing powdery and / or pasty products such as flours.

En l'état de la technique, un tel mélangeur se présente sous la forme d'une cuve, dont la partie supérieure est cylindrique et dont la partie inférieure est tronconique et comporte un orifice de sortie des produits mélangés. In the state of the art, such a mixer is in the form of a tank, the upper part of which is cylindrical and the lower part of which is frustoconical and has an outlet for the mixed products.

La cuve précitée comporte, selon son axe vertical, une vis hélicoïdale, entraînée par un moteur situé à la partie supérieure de la cuve, disposée dans un tube présentant des orifices à sa partie supérieure. The aforementioned tank comprises, along its vertical axis, a helical screw, driven by a motor located at the upper part of the tank, arranged in a tube having orifices at its upper part.

Lorsque la vis est entraînée en rotation, dans un certain sens, les produits pénètrent dans le tube s'élèvent et ressortent par les orifices supérieurs, c'est la phase de mélange. Durant cette opération, I'orifice de sortie est obturé. When the screw is rotated, in a certain direction, the products enter the tube rise and exit through the upper holes, this is the mixing phase. During this operation, the outlet orifice is blocked.

Pour effectuer la vidange de la cuve, on actionne la vis en sens inverse et on ouvre l'orifice inférieur. To empty the tank, turn the screw in the opposite direction and open the lower opening.

Différents dispositifs ont été proposés pour réaliser l'obturation de l'orifice de sortie, mais il s'est avéré que ceux-ci étaient coûteux et peu pratiques. Various devices have been proposed for achieving the closure of the outlet, but it has been found that these are expensive and impractical.

La présente invention se propose de remédier à ces inconvénients et elle est remarquable en ce que la vis de manutention s'étend, sans jeu, à travers une tubulure cylindrique formant le prolongement de l'orifice de sortie. The present invention proposes to remedy these drawbacks and it is remarkable in that the handling screw extends, without play, through a cylindrical tube forming the extension of the outlet orifice.

L'invention sera mieux comprise par la description qui va suivre faite en se référant au dessin annexé à titre d'exemple indicatif, seulement, sur lequel la figure unique montre, en coupe verticale et de façon schématique, un mélangeur vertical conforme à l'invention. The invention will be better understood from the description which follows made with reference to the accompanying drawing by way of indicative example only, in which the single figure shows, in vertical section and schematically, a vertical mixer in accordance with invention.

En se reportant au dessin, on voit que le mélangeur comporte une cuve 1 cylindrique à sa partie supérieure et tronconique à sa partie inférieure qui comporte un orifice de vidange 2.  Referring to the drawing, it can be seen that the mixer comprises a cylindrical tank 1 at its upper part and frustoconical at its lower part which comprises a drain orifice 2.

La cuve 1 présente, à sa partie supérieure un orifice 3 d'introduction des produits à mélanger. The tank 1 has, at its upper part, an orifice 3 for introducing the products to be mixed.

Selon son axe vertical, la cuve comporte une vis hélicoïdale 4 disposée dans un tube 5, fixé dans la cuve 1. According to its vertical axis, the tank comprises a helical screw 4 placed in a tube 5, fixed in the tank 1.

La vis 4 est entraînée en rotation, dans un sens ou dans l'autre, par un moteur 6. The screw 4 is driven in rotation, in one direction or the other, by a motor 6.

De la façon connue, le tube 5 présente à sa partie supérieure, au moins, un orifice 7 et, selon le sens de rotation de la vis, les produits entrent dans le tube par sa partie inférieure et en ressortent par l'orifice 7 ou inversement. In known manner, the tube 5 has at its upper part, at least, an orifice 7 and, depending on the direction of rotation of the screw, the products enter the tube through its lower part and exit from it through the orifice 7 or Conversely.

Selon l'invention, I'orifice de vidange 2 de la cuve est prolongé par une tubulure cylindrique 8 dans laquelle s'étend, sans jeu, la partie inférieure 4a de la vis. According to the invention, the emptying orifice 2 of the tank is extended by a cylindrical tube 8 in which extends, without play, the lower part 4a of the screw.

Selon un mode de réalisation, I'étanchéité entre la partie inférieure de la cuve et la vis est assurée par un manchon 9, en matière plastique par exemple, ajusté sur la vis 4 et rendu solidaire de la tubulure 8. According to one embodiment, the seal between the lower part of the tank and the screw is ensured by a sleeve 9, made of plastic for example, adjusted on the screw 4 and made integral with the tube 8.

En toute rigueur, un jeu fonctionnel est ménagé entre la vis 4 et le manchon 9. Strictly speaking, a functional clearance is provided between the screw 4 and the sleeve 9.

Comme cela ressort du dessin, le manchon 9 s'étend en hauteur sur trois filets environ. As can be seen from the drawing, the sleeve 9 extends in height over approximately three threads.

Ce sont ces filets qui, en combinaison avec le manchon, constituent l'obturation de la partie inférieure de la cuve, les produits mélangés restant coincés dans ces filets et formant un bouchon s'opposant à l'écoulement du produit. It is these threads which, in combination with the sleeve, constitute the closure of the lower part of the tank, the mixed products remaining trapped in these threads and forming a plug preventing the flow of the product.

Durant le mélange, la vis élève le produit et renforce l'effet d'obturation. During mixing, the screw raises the product and reinforces the sealing effect.

En inversant le sens de rotation de la vis le produit est, instantanément, évacué.  By reversing the direction of rotation of the screw, the product is instantly removed.

Le dispositif de l'invention, outre qu'il simplifie la réalisation du mélangeur par la suppression de tous mécanismes d'obturation, permet de passer très rapidement de la phase de mélange à celle de vidange uniquement par l'inversion du sens de rotation du moteur.  The device of the invention, in addition to simplifying the production of the mixer by eliminating all shutter mechanisms, makes it possible to move very quickly from the mixing phase to that of emptying only by reversing the direction of rotation of the engine.

Claims (2)

REVENDICATIONS 1-Mélangeur vertical du genre de ceux comportant une cuve (1), un orifice inférieur de vidange (2) et une vis hélicoïdale (4) disposée au centre de la cuve dans un tube vertical (5) ne s'étendant pas jusqu'à l'orifice de vidange et présentant, au moins, un orifice (7) à sa partie supérieure, caractérisé en ce que la partie inférieure (4a) de la vis (4) s'étend au delà de l'orifice (6) dans une tubulure (8), des moyens étant prévus pour assurer l'étanchéité entre la vis et ladite tubulure. 1-Vertical mixer of the kind of those comprising a tank (1), a lower drain orifice (2) and a helical screw (4) disposed in the center of the tank in a vertical tube (5) not extending up to at the drain orifice and having, at least, one orifice (7) at its upper part, characterized in that the lower part (4a) of the screw (4) extends beyond the orifice (6) in a pipe (8), means being provided for sealing between the screw and said pipe. 2-Mélangeur selon la revendication 1, caractérisé en ce que la tubulure (8) est doublée, intérieurement, par un manchon (9) s'ajustant, 2-Mixer according to claim 1, characterized in that the tube (8) is lined, internally, by a sleeve (9) adjusting, au jeu fonctionnel près, sur la partie (4a) de la vis.  except for the functional clearance, on the part (4a) of the screw.
FR9703328A 1997-03-19 1997-03-19 VERTICAL MIXER Expired - Fee Related FR2760978B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9703328A FR2760978B1 (en) 1997-03-19 1997-03-19 VERTICAL MIXER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9703328A FR2760978B1 (en) 1997-03-19 1997-03-19 VERTICAL MIXER

Publications (2)

Publication Number Publication Date
FR2760978A1 true FR2760978A1 (en) 1998-09-25
FR2760978B1 FR2760978B1 (en) 1999-05-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR9703328A Expired - Fee Related FR2760978B1 (en) 1997-03-19 1997-03-19 VERTICAL MIXER

Country Status (1)

Country Link
FR (1) FR2760978B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003064129A1 (en) * 2002-01-30 2003-08-07 Watson Brown Hsm Ltd Mixer and method of mixing
CN103100328A (en) * 2013-01-17 2013-05-15 河南卷烟工业烟草薄片有限公司 Novel sliced tobacco stems mixing and storing integrated machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4049244A (en) * 1974-12-03 1977-09-20 Firma Wilhelm Hedrich Vakuumanlagen Apparatus for the high-speed mixing and degasification of viscous materials especially synthetic resin
FR2386338A1 (en) * 1977-04-08 1978-11-03 Conca Gilbert Metering hopper with variable speed coaxial lifting screw - for in situ blending prior to controlled flow discharge of particulate material, pref. with PTFE seal between screw and outlet
FR2542215A1 (en) * 1983-03-10 1984-09-14 Bichard Georges Vertical mixer with direct filling at the level of the working surface for powdered or granular products, especially for the manufacture of feedstuffs for cattle
DE8608879U1 (en) * 1986-04-02 1987-03-26 Rietbergwerke Gmbh & Co Kg, 4835 Rietberg, De

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4049244A (en) * 1974-12-03 1977-09-20 Firma Wilhelm Hedrich Vakuumanlagen Apparatus for the high-speed mixing and degasification of viscous materials especially synthetic resin
FR2386338A1 (en) * 1977-04-08 1978-11-03 Conca Gilbert Metering hopper with variable speed coaxial lifting screw - for in situ blending prior to controlled flow discharge of particulate material, pref. with PTFE seal between screw and outlet
FR2542215A1 (en) * 1983-03-10 1984-09-14 Bichard Georges Vertical mixer with direct filling at the level of the working surface for powdered or granular products, especially for the manufacture of feedstuffs for cattle
DE8608879U1 (en) * 1986-04-02 1987-03-26 Rietbergwerke Gmbh & Co Kg, 4835 Rietberg, De

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003064129A1 (en) * 2002-01-30 2003-08-07 Watson Brown Hsm Ltd Mixer and method of mixing
CN100430196C (en) * 2002-01-30 2008-11-05 沃森布朗Hsm公司 Mixer and method of mixing
US7461970B2 (en) 2002-01-30 2008-12-09 Watson Brown Hsm Ltd Mixer and method of mixing
CN103100328A (en) * 2013-01-17 2013-05-15 河南卷烟工业烟草薄片有限公司 Novel sliced tobacco stems mixing and storing integrated machine

Also Published As

Publication number Publication date
FR2760978B1 (en) 1999-05-21

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