WO2000003916A1 - Dispositif de dosage pour debits de preference faibles - Google Patents

Dispositif de dosage pour debits de preference faibles Download PDF

Info

Publication number
WO2000003916A1
WO2000003916A1 PCT/CH1999/000309 CH9900309W WO0003916A1 WO 2000003916 A1 WO2000003916 A1 WO 2000003916A1 CH 9900309 W CH9900309 W CH 9900309W WO 0003916 A1 WO0003916 A1 WO 0003916A1
Authority
WO
WIPO (PCT)
Prior art keywords
dosing device
sleeve
gear
motor
outer sleeve
Prior art date
Application number
PCT/CH1999/000309
Other languages
German (de)
English (en)
Inventor
Albin Wernli
Original Assignee
K-Tron Technologies, 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 K-Tron Technologies, Inc. filed Critical K-Tron Technologies, Inc.
Publication of WO2000003916A1 publication Critical patent/WO2000003916A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00—Loading or unloading
    • B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
    • B65G65/34—Emptying devices
    • B65G65/40—Devices for emptying otherwise than from the top
    • B65G65/46—Devices for emptying otherwise than from the top using screw conveyors
    • B65G65/463—Devices for emptying otherwise than from the top using screw conveyors arranged vertically or substantially vertically within the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/04—Methods of, or means for, filling the material into the containers or receptacles
    • B65B1/10—Methods of, or means for, filling the material into the containers or receptacles by rotary feeders
    • B65B1/12—Methods of, or means for, filling the material into the containers or receptacles by rotary feeders of screw type

Definitions

  • the present invention relates to a device for dosing non-exclusively, but preferably small amounts of powdered or granular substances according to the preamble of claim 1.
  • a common characteristic of the known dosing devices is the presence of a - usually funnel-shaped - storage vessel from which the bulk material to be dosed is discharged directly or indirectly by means of one or two parallel augers in a horizontal, vertical or oblique direction.
  • the filling of the Ford snails which is decisive for the temporal homogeneity of the mass flow, takes place either by pure gravity; the dense homogeneity of the bulk material to be dosed is achieved with all kinds of stirrers.
  • the Ford augers are compulsorily filled, for example by further Ford augers, usually perpendicular to them, such as in GB 2 072 122 A.
  • Another known procedure is the feeding of the screw conveyor by pneumatically fluidized bulk material, as in GB 2 156 322 A.
  • the actual metering that is to say the effect of a predetermined mass flow m or ⁇ (in kg / sec), takes place mostly via the control and regulation of the speed of the auger.
  • the object of the present invention is to create a metering device which overcomes the disadvantages mentioned and is also simple in construction and inexpensive in both manufacture and maintenance.
  • the solution to the problem is given in the characterizing part of patent claim 1 with regard to the core idea of the invention, m the dependent claims with respect to further advantageous embodiments. With the aid of the attached drawing, the invention is explained in more detail; show it
  • Fig. 1 shows the metering part of a first exemplary embodiment of the device in longitudinal section.
  • Fig. 2 shows a longitudinal section through the entire metering device according to the first embodiment.
  • FIG. 3 shows a construction variant of FIG. 1.
  • FIG. 4 shows a variant of the inner sleeve according to FIG. 1.
  • Fig. 5 shows a second exemplary embodiment of the device in longitudinal section.
  • the funnel 1 is a longitudinal section through a first exemplary embodiment of the actual metering part of the device. It consists of a storage hopper 1, in which a Ruhr organ 2 concentrically rotates around the longitudinal axis of the hopper and loosens the bulk material to be metered in, thus preventing compaction and bridging. Such Ruhr organs 2 are known in many embodiments.
  • the funnel 1 is closed by a solid, for example welded-in bottom 3.
  • An inner sleeve 4 is embedded concentrically in the bottom 3 and is also fastened to the bottom 3, for example also by welding.
  • the inner sleeve 4 has at its upper end a chamfer 5 which slopes inwards.
  • Both the chamfer 5 and the inside of the inner sleeve 4 have finely machined surfaces so that bulk material to be metered does not get caught.
  • An outer sleeve 6 is arranged coaxially with the inner sleeve 4, such that it overlaps the inner sleeve 4 from above and its inner diameter is so much larger than the outer one of the inner sleeve that an annular gap 7 between the two sleeves 4, 6 arises in which a screw-shaped Ford screw 8 is rotatably embedded. This is self-supporting and attached above the inner sleeve 4 to a shaft 9 rotatable within the outer sleeve 6.
  • the outer sleeve 6 has a lower edge which also carries a chamfer 5 that slopes away from the outside.
  • the degree of overlap of the outer sleeve 6, 4 is between one and five bypasses of the auger 8.
  • the auger 8 is shown with a circular cross section.
  • Other cross-sectional shapes such as square, rectangle, rhomboid or, generally, polygonal cross-sections sm ⁇ are also inventive.
  • the choice of a specific cross-sectional shape can be determined by the type of bulk material to be metered.
  • the Ford screw ⁇ projects beyond the lower edge of the outer sleeve 6 by about half a turn of the Ford screw 8, which is ground at its lower end, for example, parallel to the plane of the bottom 3.
  • this can also have an acute-angled angle, so that at most only a small part of the obliquely cut cross-sectional area of the auger 8 touches the bottom 3.
  • the hopper 1 is at least partially filled with the bulk material to be dosed, this is loosens, lifted from the auger 8 into the annular gap 7 and pushed upwards therein. If the chamfer 5 of the inner sleeve 4 is reached, the bulk material lacks a lateral support and the interior of the inner sleeve 4 falls over the chamfer 5 ms and thus falls out of the metering device onto conveying means (not shown). The material flow is indicated by two arrows.
  • the hopper 1 is provided with a cover 16 which carries further organs: an filling hopper 17 for loading the hopper 1 and, for example, two motors 18, 19, both of which are equipped, for example, with integrated gears.
  • the motor 18 drives a shaft 20 which is mounted, for example, in the outer sleeve 6 m bearings 21 and merges into the rotatable shaft 9 below this bearing 21.
  • the upper part of the outer sleeve 6 is surrounded by a further sleeve 22 which carries a further bearing 23; around this a tube 24 is rotatably arranged.
  • the Ruhrorgan 2 is attached to this tube 24.
  • the tube 24 is driven, for example, by a first gear 25, which is in engagement with a second gear 26, which is driven by the second motor 19.
  • a second variant, not shown, for this purpose consists in the use of a single motor which drives the Ruhr organ via a first gear output and the Ford worm via a second gear output, for example provided with a friction wheel drive. The speed decoupling of both rotational speeds is also guaranteed in this way.
  • Fig. 3 is a representation of a variant of Fig. 1.
  • the motors with gears 18, 19 are not mounted on the cover 16, but are supported by a cantilever 11, which in turn is supported on a frame 12. This also carries the fastening device 15 attached to the funnel 1.
  • the frame 12 rests on a weighing device (not shown).
  • the cover 16 can be made in two parts or can be provided with a slot for receiving the outermost sleeve 22 and the shaft of the motor with the gear 19 designated by the number 13.
  • the sleeve 4 shown in FIG. 4 has the same design in the area of its upper edge as that shown in FIG. 1. Below the chamfer 5, however, the inner diameter has a conical extension 14. This helps to avoid a gradual build-up of bulk materials in the cylindrical part of the sleeve 4.
  • 5 shows a second exemplary embodiment of the device according to the invention.
  • the inner sleeve 4 and the outer sleeve 6 are conical, for example, with the same opening angle. This creates a likewise conical annular gap 7, in which a conically shaped auger 8 can run.
  • the shaping worm 8 is driven by a base plate 27, for example designed as a spur gear and rotatable about its vertical axis, which meshes with a third gear 28, which in turn is driven by the first motor 18.
  • the base plate 27 is rotatably mounted about the inner sleeve 4.
  • the conical Ford screw 8 is fastened in a suitable manner to said base plate 27.
  • the second motor 19 with the second gear 26 drives a lower end 29a, which is designed here as a gear, meshing with the second gear 26.
  • This fourth gear 29 is internally funnel-shaped hollow and forms the lower end 29a of the funnel 1.
  • the fourth gear wheel 29 carries an impeller 30, which projects into the interior of the funnel-shaped cavity up to the conical screw conveyor 8.
  • the outer sleeve 6 is carried by an arm 31 fastened in the funnel 1 and can be fastened thereon in an adjustable manner.
  • the width of the annular gap 7 is variable.
  • the base plate 27 and the fourth toothed wheel 29 provided with the funnel-shaped cavity can be driven by a single motor 18 in the sense of what was said in relation to FIG. 2.
  • the transmission elements referred to as gears are only mentioned in the sense of examples; other types of drives, such as belts, chains, friction wheels are also included with the corresponding design of the transmission elements.
  • the delivery rate can be influenced by various parameters: - Constructionally: - By the steepness of the screw conveyor 8
  • the delivery rate can be between a few grams / h up to several kilograms / h.
  • the spread of the results can be between a few grams / h up to several kilograms / h.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Abstract

L'invention concerne un dispositif de dosage incorporé dans un entonnoir (1) présentant un fond (3) dans lequel est soudée une douille intérieure (4) comportant, sur son bord supérieur, un biseau (5) incliné vers l'intérieur. Une douille extérieure (6) qui recouvre la douille intérieure (4) présente un diamètre intérieur supérieur au diamètre extérieur de la douille intérieure (4) de façon à créer un espace annulaire (7) dans lequel est placée, de manière rotative, une vis sans fin (8). Cette vis est fixée à une tige rotative (9) et s'étend jusqu'au fond (3) sur lequel elle glisse et est affûtée de manière pointue. Le bord inférieur (10) de la douille extérieure (6) présente également un biseau (5) incliné vers l'intérieur. Lors d'une rotation de la vis sans fin (8), la matière en vrac se trouvant dans l'entonnoir (1) et aérée par un organe d'agitation (2) est soulevée dans l'espace annulaire et tombe par l'intermédiaire du biseau (5) de la douille intérieure (4) à l'intérieur de cette dernière.
PCT/CH1999/000309 1998-07-13 1999-07-08 Dispositif de dosage pour debits de preference faibles WO2000003916A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1491/98 1998-07-13
CH149198 1998-07-13

Publications (1)

Publication Number Publication Date
WO2000003916A1 true WO2000003916A1 (fr) 2000-01-27

Family

ID=4211711

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1999/000309 WO2000003916A1 (fr) 1998-07-13 1999-07-08 Dispositif de dosage pour debits de preference faibles

Country Status (1)

Country Link
WO (1) WO2000003916A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2839502A1 (fr) * 2002-04-05 2003-11-14 Motan Holding Gmbh Dispositif de dosage pour un produit en vrac
DE102012222335A1 (de) * 2012-12-05 2014-06-05 Robert Bosch Gmbh Dosiervorrichtung für Schüttgut
CN114376256A (zh) * 2022-01-26 2022-04-22 云南中烟工业有限责任公司 一种混合装置
CN114933363A (zh) * 2022-06-06 2022-08-23 杭州微科生物技术有限公司 一种降解水中污染物的缓释酶装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6816207A (fr) * 1967-11-16 1969-05-20
US3687250A (en) * 1970-08-03 1972-08-29 Robert C James Auger filler and control therefor
FR2177817A1 (fr) * 1972-03-30 1973-11-09 Buehler Ag Geb
DE2906314A1 (de) * 1978-02-21 1979-08-23 Ciba Geigy Ag Vorrichtung zum verdichten und dosierten abfuellen von pulvrigen substanzen
GB2072122A (en) 1980-03-14 1981-09-30 Libra Sa Screw device for feeding vertical screw feeders
GB2156322A (en) 1984-03-30 1985-10-09 Sig Schweiz Industrieges Apparatus for metering bulk material
US4742852A (en) * 1987-02-02 1988-05-10 Alar Engineering Corporation Feeder
DE4447051A1 (de) * 1994-12-29 1996-07-04 Rovema Gmbh Vorrichtung und Verfahren zur portionsweisen Abgabe von Schüttgut
DE29608490U1 (de) 1996-04-23 1996-08-01 Novindustra Ag Abfüllkopf für Vertikal-Dosierer

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6816207A (fr) * 1967-11-16 1969-05-20
FR1591926A (fr) * 1967-11-16 1970-05-04
US3687250A (en) * 1970-08-03 1972-08-29 Robert C James Auger filler and control therefor
FR2177817A1 (fr) * 1972-03-30 1973-11-09 Buehler Ag Geb
DE2906314A1 (de) * 1978-02-21 1979-08-23 Ciba Geigy Ag Vorrichtung zum verdichten und dosierten abfuellen von pulvrigen substanzen
GB2072122A (en) 1980-03-14 1981-09-30 Libra Sa Screw device for feeding vertical screw feeders
GB2156322A (en) 1984-03-30 1985-10-09 Sig Schweiz Industrieges Apparatus for metering bulk material
US4742852A (en) * 1987-02-02 1988-05-10 Alar Engineering Corporation Feeder
DE4447051A1 (de) * 1994-12-29 1996-07-04 Rovema Gmbh Vorrichtung und Verfahren zur portionsweisen Abgabe von Schüttgut
DE29608490U1 (de) 1996-04-23 1996-08-01 Novindustra Ag Abfüllkopf für Vertikal-Dosierer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2839502A1 (fr) * 2002-04-05 2003-11-14 Motan Holding Gmbh Dispositif de dosage pour un produit en vrac
DE102012222335A1 (de) * 2012-12-05 2014-06-05 Robert Bosch Gmbh Dosiervorrichtung für Schüttgut
CN114376256A (zh) * 2022-01-26 2022-04-22 云南中烟工业有限责任公司 一种混合装置
CN114933363A (zh) * 2022-06-06 2022-08-23 杭州微科生物技术有限公司 一种降解水中污染物的缓释酶装置
CN114933363B (zh) * 2022-06-06 2023-02-17 杭州微科生物技术有限公司 一种降解水中污染物的缓释酶装置

Similar Documents

Publication Publication Date Title
WO1996022241A1 (fr) Dispositif pour doser des produits en vrac
DE1531934C3 (de) Austrag- Misch- und Dosiervorrichtung für schlecht fließende pulverförmige Stoffe
DE3110437A1 (de) "mischer"
DE2830491C2 (fr)
EP1152228B1 (fr) Dispositif de dosage pour le remplissage des recipients avec petite ouverture
DE4116327C2 (de) Dosiereinrichtung für Glasfasern
DE2516255C2 (de) Mischer mit rotierendem mischbehaelter
WO2000003916A1 (fr) Dispositif de dosage pour debits de preference faibles
DE60306283T2 (de) Vorrichtung zum Zuführen von Stoffen, insbesondere von pulverförmigen, körnigen und ähnlichen Stoffen, in Behältern
WO2016110399A1 (fr) Dispositif de dosage pour matière en vrac et dispositif d'extrusion ayant un tel dispositif de dosage pour matière en vrac
DE3534090A1 (de) Vorrichtung zum dosieren von bestaeubungspuder
DE3314727C2 (de) Mischer
DE1507892C3 (de) Vorrichtung zum Benetzen pulverförmiger Stoffe mit einer Flüssigkeit
EP0587058A1 (fr) Dispositif de remplissage notamment pour sacs à soupape
DE3502765C2 (de) Förderschnecke zum Dosieren
CH669934A5 (fr)
DE2847494A1 (de) Stopfwerk fuer kunststoffextruder
DE19706407C1 (de) Dosier- und Austragsvorrichtung für Schüttgüter
EP3792207B1 (fr) Dispositif de dosage
EP0214189A1 (fr) Tambour d'agglomeration
DE2152499A1 (de) Probennahmevorrichtung
DE19617660C2 (de) Mischsilo
DE10212418B4 (de) Vorrichtung zum Beschicken einer Förderschnecke
DE2009510A1 (de) Silo-Ausbringvorrichtung
DE2926542C2 (de) Dosiervorrichtung für den Zuschlag nicht rieselfähiger Pulverpigmente zu Kunststoff-Rohmaterial

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): BR CN IN JP KR RU US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AM AZ BY KG KZ MD RU TJ TM