FR2541067A1 - Pneumatic device for dispensing and metering powdered or granular products - Google Patents

Pneumatic device for dispensing and metering powdered or granular products Download PDF

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Publication number
FR2541067A1
FR2541067A1 FR8216779A FR8216779A FR2541067A1 FR 2541067 A1 FR2541067 A1 FR 2541067A1 FR 8216779 A FR8216779 A FR 8216779A FR 8216779 A FR8216779 A FR 8216779A FR 2541067 A1 FR2541067 A1 FR 2541067A1
Authority
FR
France
Prior art keywords
compartment
opening
product
metering
hopper
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.)
Withdrawn
Application number
FR8216779A
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French (fr)
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.)
GIRAUD JEAN MARIE
Original Assignee
GIRAUD JEAN MARIE
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 GIRAUD JEAN MARIE filed Critical GIRAUD JEAN MARIE
Priority to FR8216779A priority Critical patent/FR2541067A1/en
Publication of FR2541067A1 publication Critical patent/FR2541067A1/en
Withdrawn legal-status Critical Current

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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
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/40—Feeding or discharging devices
    • B65G53/46—Gates or sluices, e.g. rotary wheels
    • B65G53/4608—Turnable elements, e.g. rotary wheels with pockets or passages for material
    • B65G53/4625—Turnable elements, e.g. rotary wheels with pockets or passages for material with axis of turning perpendicular to flow
    • B65G53/4633—Turnable elements, e.g. rotary wheels with pockets or passages for material with axis of turning perpendicular to flow the element having pockets, rotated from charging position to discharging position, i.e. discrete flow
    • B65G53/4641—Turnable elements, e.g. rotary wheels with pockets or passages for material with axis of turning perpendicular to flow the element having pockets, rotated from charging position to discharging position, i.e. discrete flow with means for clearing out the pockets
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C15/00—Fertiliser distributors
    • A01C15/04—Fertiliser distributors using blowers
    • 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
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/02—Devices for feeding articles or materials to conveyors
    • B65G47/16—Devices for feeding articles or materials to conveyors for feeding materials in bulk
    • B65G47/18—Arrangements or applications of hoppers or chutes
    • B65G47/19—Arrangements or applications of hoppers or chutes having means for controlling material flow, e.g. to prevent overloading

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Fertilizing (AREA)
  • Sowing (AREA)

Abstract

The present invention relates to a pneumatic device for dispensing and metering powdered or granular products, which can be used particularly for spreading fertiliser or seeds on the soil. This device is characterised in that it comprises, in the hopper 2 and above the opening 6 of the bottom 5, at least one paddle wheel 8 delimiting compartments 12 between the paddles for metering the product, this paddle wheel 8 being rotationally driven and mounted about a fixed and hollow horizontal spindle 14 whose inside is connected to a compressed air source, the lower part of the wall of this hollow spindle 14 being pierced, at the location of each wheel 8, with a slot 15 with which each compartment 12 delimited between successive paddles 9 communicates, when this compartment 12 comes into the extreme lower position.

Description

La présente invention concerne un dispositif pneumatiquede distribution et de dosage de produits pulvérulents ou granuleux utilisable notamment pour la répartition d'engrais ou de semences sur le sol. The present invention relates to a pneumatic device for distributing and dosing powdery or granular products which can be used in particular for distributing fertilizers or seeds on the soil.

Dans les dispositifs de répartition d'engrais ou de semences sur le sol par voie pneumatique, la quantité d'engrais ou de semences est introduite dans des tubulures d'échappement au moyen de rouleaux à cannelures. Cependant ces cannelures ne permettent pas de pousser tous les produits pulvérulents. Par ailleurs ces cannelures sont nettoyées par une brosse rotative ou fixe. In devices for distributing fertilizers or seeds on the ground pneumatically, the quantity of fertilizers or seeds is introduced into exhaust pipes by means of grooved rollers. However, these grooves do not allow all the powdery products to be pushed. Furthermore, these grooves are cleaned by a rotating or fixed brush.

La présente invention vise à remédier aux inconvénients précités en procurant un dispositif de conception particulièrement simple et assurant un nettoyage automatique et complet. The present invention aims to remedy the aforementioned drawbacks by providing a device of particularly simple design and ensuring automatic and complete cleaning.

A cet effet ce dispositif pneumatique de distribution et de dosage de produits pulvérulents ou granuleux, utilisable notamment pour la répartition d'engrais ou de semences sur le sol, comportant une trémie contenant le produit à distribuer, cette trémie étant munie d'un fond dans lequel est prévue une ouverture disposée au-dessus d'une tubulure de distribution, est caractérisée en ce qu'elle comporte, dans la trémie et au-dessus de l'ouverture du fond, au moins une roue à palettes délimitant entre elles des compartiments de dosage du produit, cette roue à palettes étant entraînée en rotation et montée autour d'un axe horizontal fixe et creux dont l'intérieur est relié à une source d'air comprimé, la partie inférieure de la paroi de cet axe creux étant percée, à l'endroit de chaque roue, d'une lumière avec laquelle communique chaque compartiment délimité entre deux palettes successives, lorsque ce compar
timent arrive en position extraie inférieure, Si bien que le produit se trouvant dans le compartiment inférieur est chassé par l'air comprimé à travers 18 ouverture, dans la tubulure de distribution.To this end, this pneumatic device for distributing and dosing powdery or granular products, usable in particular for the distribution of fertilizers or seeds on the soil, comprising a hopper containing the product to be distributed, this hopper being provided with a bottom in which is provided with an opening arranged above a distribution pipe, is characterized in that it comprises, in the hopper and above the bottom opening, at least one paddle wheel delimiting compartments between them for metering the product, this paddle wheel being driven in rotation and mounted around a fixed and hollow horizontal axis the interior of which is connected to a source of compressed air, the lower part of the wall of this hollow axis being pierced , at the place of each wheel, of a light with which communicates each compartment delimited between two successive pallets, when this compar
timent arrives in the lower extracted position, so that the product in the lower compartment is expelled by compressed air through 18 opening, in the distribution manifold.

On décrira ci-âprès, à titre d'exemple non limitatif, une forme d' exécution de la présente invention en référence au dessin annexé sur lequel
La figure unique est une vue en coupe verticale schématique d'un dispositif de distribution pneumatique suivant l'invention.An embodiment of the present invention will be described below, by way of non-limiting example, with reference to the appended drawing in which
The single figure is a schematic vertical sectional view of a pneumatic distribution device according to the invention.

Le dispositif représenté sur le dessin est prévu pour distribuer et doser un produit pulvérulent ou granuleux 1 qui est contenu dans une trémie 2, et la faire passer dans une tubulure de distribution 3 La trémie 2 comporte une paroi inclinée 4 et un fond 5 dans lequel est ménagée une ouverture 6 pour le passage du produit granuleux 1 dans la tubulure 3. En dessous de cette ouverture 6 est disposé un déflecteur 7 destiné à diriger le produit 1 vers l'aval, en considérant le sens d'écoulement du produit indiqué par la flèche f. The device shown in the drawing is designed to dispense and dose a powdery or granular product 1 which is contained in a hopper 2, and to pass it through a distribution tube 3 The hopper 2 has an inclined wall 4 and a bottom 5 in which an opening 6 is formed for the passage of the granular product 1 in the tubing 3. Below this opening 6 is disposed a deflector 7 intended to direct the product 1 downstream, considering the direction of flow of the product indicated by the arrow f.

Le dispositif suivant l'invention comporte, au-dessus de l'ouverture 6 et pour chaque tubulure de distribution 3, une roue à palettes 8 qui comporte plusieurs palettes radiales disposées régulièrement autour de 1 axe transversal de rotation 10. Ces palettes 9 sont solidaires d'un moyeu 11 et définissent entre elles des compartiments de dosage 12. Le moyeu il est percé de part en pert,à l'endroit de chaque compartiment 12, d'une ouverture 13
Le moyeu 11 de la roue à palettes 8 est monté à rotation sur un axe horizontal et transversal 14 qui est fixe et creux. L' entrainement en rotation de la roue à palettes 8 peut s'effectuer par tous moyens appropriés, par exemple par sur un moteur indépendant ou une prise de force.L'axe creux 14 est relié à une source d'air comprimé non représentée. Par ailleurs sa paroi est percée, au droit de chaque roue à palettes 8, d'une lumière 15 qui est située à sa partie inférieure de l'axe. Ltextension circon férentielle de cette lumière 15 correspond sensiblement à celle d'une ouverture 13 du moyeu 11, lorsqu'unie telle ouverture se trouve en regard.The device according to the invention comprises, above the opening 6 and for each distribution pipe 3, a paddle wheel 8 which comprises several radial paddles arranged regularly around 1 transverse axis of rotation 10. These paddles 9 are integral a hub 11 and define metering compartments 12 therebetween. The hub is pierced right through, at the place of each compartment 12, with an opening 13
The hub 11 of the paddle wheel 8 is mounted for rotation on a horizontal and transverse axis 14 which is fixed and hollow. The rotary wheel 8 can be rotated by any suitable means, for example by an independent motor or a power take-off. The hollow shaft 14 is connected to a source of compressed air which is not shown. Furthermore, its wall is pierced, in line with each paddle wheel 8, with a lumen 15 which is located at its lower part of the axis. The circumferential dimension of this light 15 corresponds substantially to that of an opening 13 of the hub 11, when such an opening is opposite.

Ainsi, lors de la rotation de la roue à palettes 8 dans le sens des aiguilles d'une montre,comme il est repré senté sur le dessin, chaque compartiment de dosage 12 délimité entre deux palettes 9 successives entraine une quantité prédéterminée de produit pulvérulent granuleux 1, vers le bas, pour amener cette quantité au-dessus de l'ouverture 6 à travers laquelle le produit tombe dans la tubulure de distribution 3.Lorsqu'un compartiment 12 arrive position inférieure,, l'ouverture 13 du moyeu 11 associé à ce compartiment se trouve située sous la lumière 15 et de l'air comprimé est alors insufflé à travers cette lumière 15 et l'ouverture 13, dans le compartiment 12. Cet air sous pression assure le nettoyage des parois de séparation entre les diverses roues à palettes 8 et également la propulsion du produit pulvérulent du compartiment 12 à travers l'ouverture 6 et dans la tubulure de distribution 3. Thus, during the rotation of the paddle wheel 8 clockwise, as shown in the drawing, each dosing compartment 12 delimited between two successive pallets 9 results in a predetermined quantity of granular powdery product. 1, downwards, to bring this quantity above the opening 6 through which the product falls into the dispensing tube 3. When a compartment 12 arrives in the lower position, the opening 13 of the hub 11 associated with this compartment is located under the lumen 15 and compressed air is then blown through this lumen 15 and the opening 13, in the compartment 12. This pressurized air ensures the cleaning of the separation walls between the various wheels with pallets 8 and also the propulsion of the pulverulent product from the compartment 12 through the opening 6 and into the distribution pipe 3.

On voit d'après ce qui précède qu'eu cours de la rotation de la roue à paletes de dosage 8, la lumière d'échappement de l'air 15 est alternativement ouverte et fermée. It is seen from the above that during the rotation of the metering paddle wheel 8, the air exhaust port 15 is alternately open and closed.

La vitesse de rotation des roues à palettes 8 peut être ajustée à volonté, cette vitesse étant proportionnelle au débit demandé et à la vitesse d'avancement de I'appareil sur lequel le dispositif de dosage est monté.  The speed of rotation of the paddle wheels 8 can be adjusted at will, this speed being proportional to the requested flow rate and to the speed of advance of the apparatus on which the metering device is mounted.

Claims (1)

REVENDICATION CLAIM Dispositif pneumatique de distribution et de dosage Pneumatic distribution and metering device de produits pulvérulents ou granuleux, utilisable notamment pour la répartition d'engrais ou de semences sur le sol, comportant une trémie (2) contenant le produit à distribuer, cette trémie étant munie d'un fond (5) dans lequel est prévue une ouverture (6) disposée au-dessus d'une tubulure de distribution (3), caractérisé en ce qu'il comporte, dans la trémie (2) et au-dessus de l'ouverture (6) du fond (5), au moins une roue à palettes (8)délimitant entre elles des compartiments (12) de dosage du produit, cette roue à palettes (8) étant entr ai née en rotation et montée autour d'un axe horizontal (14) fixe et--creux dont l'intérieur est relié à une source d'air comprimé, la partie inférieure de la paroi de cet axe creux (14) étant percée, à l'endroit de chaque roue (8), d'une lumière (15) avec laquelle communique chaque compartiment (12) délimité entre deux palettes successives (9),, lorsque ce compartiment (12) arrive en position extrême inférieure, Si bien que le produit se trouvant dans le compartiment inférieur est chassé par l'air comprimé à travers l'ouverture (6), dans la tubulure de distribution (3).  of powdery or granular products, usable in particular for the distribution of fertilizers or seeds on the ground, comprising a hopper (2) containing the product to be distributed, this hopper being provided with a bottom (5) in which an opening is provided (6) disposed above a distribution tube (3), characterized in that it comprises, in the hopper (2) and above the opening (6) of the bottom (5), at least a paddle wheel (8) delimiting between them compartments (12) for metering the product, this paddle wheel (8) having entered into rotation and mounted around a fixed horizontal axis (14) and - hollow of which the interior is connected to a source of compressed air, the lower part of the wall of this hollow axis (14) being pierced, at the location of each wheel (8), with a lumen (15) with which communicates each compartment (12) delimited between two successive pallets (9) ,, when this compartment (12) arrives in the extreme lower position, so that the product being in the lower compartment is expelled by compressed air through the opening (6), in the distribution pipe (3).
FR8216779A 1982-10-04 1982-10-04 Pneumatic device for dispensing and metering powdered or granular products Withdrawn FR2541067A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8216779A FR2541067A1 (en) 1982-10-04 1982-10-04 Pneumatic device for dispensing and metering powdered or granular products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8216779A FR2541067A1 (en) 1982-10-04 1982-10-04 Pneumatic device for dispensing and metering powdered or granular products

Publications (1)

Publication Number Publication Date
FR2541067A1 true FR2541067A1 (en) 1984-08-24

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ID=9278034

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8216779A Withdrawn FR2541067A1 (en) 1982-10-04 1982-10-04 Pneumatic device for dispensing and metering powdered or granular products

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Country Link
FR (1) FR2541067A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106276156A (en) * 2016-10-10 2017-01-04 湖南宜达欧农业科技有限公司 Fiber-like material dosing conveyer
CN110077823A (en) * 2019-05-23 2019-08-02 安徽信远包装科技有限公司 Essence amount batcher
CN112586141A (en) * 2020-12-09 2021-04-02 农业农村部南京农业机械化研究所 Plant protection unmanned aerial vehicle ware of scattering

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106276156A (en) * 2016-10-10 2017-01-04 湖南宜达欧农业科技有限公司 Fiber-like material dosing conveyer
CN110077823A (en) * 2019-05-23 2019-08-02 安徽信远包装科技有限公司 Essence amount batcher
CN112586141A (en) * 2020-12-09 2021-04-02 农业农村部南京农业机械化研究所 Plant protection unmanned aerial vehicle ware of scattering

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