WO2010010273A2 - Tank for retrieving a stored material, particularly in a silo - Google Patents

Tank for retrieving a stored material, particularly in a silo Download PDF

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Publication number
WO2010010273A2
WO2010010273A2 PCT/FR2009/051380 FR2009051380W WO2010010273A2 WO 2010010273 A2 WO2010010273 A2 WO 2010010273A2 FR 2009051380 W FR2009051380 W FR 2009051380W WO 2010010273 A2 WO2010010273 A2 WO 2010010273A2
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WO
WIPO (PCT)
Prior art keywords
sections
hopper
silo
discharge end
product
Prior art date
Application number
PCT/FR2009/051380
Other languages
French (fr)
Other versions
WO2010010273A3 (en
Inventor
Michel Jamey
Original Assignee
Hasler International
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 Hasler International filed Critical Hasler International
Publication of WO2010010273A2 publication Critical patent/WO2010010273A2/en
Publication of WO2010010273A3 publication Critical patent/WO2010010273A3/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/26—Hoppers, i.e. containers having funnel-shaped discharge sections
    • B65D88/28—Construction or shape of discharge section

Definitions

  • the invention relates to the technical sector of the extraction and distribution of bulk products contained in particular in a silo.
  • the invention finds a particularly advantageous application in the case of installations of large dimensions such as cement plants, when the bulk products to be dispensed are highly compacted and subjected to high humidity.
  • these products are stored in a silo to be evacuated on, for example, a transfer conveyor via a hopper mounted between said silo and said conveyor.
  • the extraction of the products contained in the hopper is carried out simply by gravity, after opening, for example, a hatch, valves or other, to put in communication said hopper with the carpet.
  • problems will appear. Indeed, the materials tend to settle in the hopper which compresses them, so that said products have great difficulty to reach the discharge end of the hopper.
  • the object of the invention is to remedy these disadvantages in a simple, safe, effective and rational manner.
  • the problem to be solved by the invention is to propose a particular profile of the hopper, in order to facilitate the flow, especially by gravity, of all types of bulk products, including when these are highly compacted with a high rate. significant humidity.
  • a hopper for extracting a product stored in a silo in particular and comprising a connection end to said silo and an exhaust end, characterized in that it has a profile in cross-section and in longitudinal section delimiting, from the connecting end to the discharge end, successive zones able to decompress the product by creating horizontally oriented forces, to gradually retain the product as and as it is evacuated by gravity.
  • the longitudinal section profile delimits, on one side at least, sections in the form of stairs.
  • the sections are of decreasing length from the connecting end to the discharge end.
  • the sections are formed on one side, from a vertical cylinder constituting the connecting end.
  • the opposite side to where the sections are formed, is inclined towards the discharge end.
  • the bottom of said hopper constituting the discharge end is of progressive width from the inclined side and towards the sections, in the direction of flow of the material.
  • FIG. 1 is a perspective view of an embodiment of the hopper according to the invention.
  • FIG. 1 is a top view of the hopper
  • FIG. 3 is a longitudinal sectional view taken along the line 3-3 of Figure 2;
  • FIG. 4 is a front view showing an example of application of the hopper according to the invention to a cement plant
  • Figure 5 is a side view corresponding to Figure 4.
  • the extraction hopper designated as a whole by (1) is intended to be mounted between a silo (2) where bulk products are stored and an evacuation belt (3).
  • the hopper (1) comprises a connecting end (la) with the bottom of the silo (2) and an exhaust end (Ib) in communication with the evacuation conveyor (3) of the products.
  • the hopper (1) has a profile in cross-section and in longitudinal section, able to allow to unpack the products without packing them, as and when they are extracted from the silo (2). ) by gravity.
  • the profile of the hopper (1) delimits from the connecting end (la) to the discharge end (Ib) successive zones capable of decompressing the products by creating horizontally oriented forces to retain gradually the product, avoiding, therefore, any phenomenon of compression, under the effect of evacuation by gravity.
  • the longitudinal section profile of the hopper (1) defines, on one side at least, sections (Ic) in the form of stairs. These sections (Ic) are, in plan, degressive width from the connecting end (la) to the discharge end (Ib).
  • the different sections (Ic) are formed, for example, on one side from an open cylinder (Id) constituting the connecting end (la).
  • the hopper (1) has an inclined side (1c) towards the discharge end (Ib).
  • the discharge end (Ib), which constitutes the open bottom of the hopper (1), is of progressive width from the inclined side (Ic) and towards the end section (Ic).
  • FIGS 4 and 5 show the application of a hopper (1) according to the features of the invention, in the case of a cement plant, and more generally in all types of large size installations.
  • the hopper can be made in different dimensions and in different materials.

Abstract

The invention relates to a tank (1) for retrieving a stored material, particularly in a silo (2), and which includes an end (1a) for connecting to said silo (2) and a discharge end (1b), and which is remarkable in that it has a transversely cross-sectional and longitudinally cross-sectional shape defining, from the connection end (1a) to the discharge end (1b), sections (1c) of decreasing length from the connection end (1a) to the discharge end (1b), said sections (1c) being formed, on one side, from a cylinder (1d) consisting of the connection end (1a), and the side (1e) opposite the one where the sections are formed is angled in the direction of the discharge end (1b), said sections (1c) being stair-shaped and capable of decompressing the material by creating horizontally oriented stresses to gradually retain the material as the same is discharged via gravity.

Description

TREMIE D'EXTRACTION D'UN PRODUIT STOCKE DANS UN EXTRACTION HOPPER OF A STOCKEY PRODUCT IN A
SILO NOTAMMENTSILO NOTAMENTLY
L'invention se rattache au secteur technique de l'extraction et de la distribution de produits en vrac contenus notamment dans un silo.The invention relates to the technical sector of the extraction and distribution of bulk products contained in particular in a silo.
L'invention trouve une application particulièrement avantageuse dans le cas d'installations de dimensions importantes telles que les cimenteries, quand les produits en vrac à distribuer sont fortement compactés et soumis à un taux d'humidité élevé.The invention finds a particularly advantageous application in the case of installations of large dimensions such as cement plants, when the bulk products to be dispensed are highly compacted and subjected to high humidity.
Comme indiqué, ces produits sont stockés dans un silo pour être évacués sur, par exemple, un convoyeur de transfert par l'intermédiaire d'une trémie montée entre ledit silo et ledit convoyeur. L'extraction des produits contenus dans la trémie s'effectue simplement par gravité, après avoir ouvert, par exemple, une trappe, des vannes ou autre, pour mettre en communication ladite trémie avec le tapis. Toutefois, si l'on considère la compacité des produits et parfois le degré d'humidité, d'une part, et la forme géométrique des parois de la trémie qui, généralement, sont inclinées pour diriger et canaliser les produits sur le convoyeur d'évacuation, d'autre part, des problèmes vont apparaître. En effet, les matériaux ont tendance à se tasser dans la trémie ce qui les comprime, de sorte que lesdits produits rencontrent de grandes difficultés pour atteindre l'extrémité d'évacuation de la trémie.As indicated, these products are stored in a silo to be evacuated on, for example, a transfer conveyor via a hopper mounted between said silo and said conveyor. The extraction of the products contained in the hopper is carried out simply by gravity, after opening, for example, a hatch, valves or other, to put in communication said hopper with the carpet. However, if we consider the compactness of the products and sometimes the degree of humidity, on the one hand, and the geometric shape of the walls of the hopper, which are generally inclined to direct and channel the products on the conveyor. evacuation, on the other hand, problems will appear. Indeed, the materials tend to settle in the hopper which compresses them, so that said products have great difficulty to reach the discharge end of the hopper.
II apparaît donc que, selon l'état de la technique, les profils en section des trémies destinées à être installées, notamment, entre un silo et un convoyeur d'évacuation, ne sont pas adaptés lorsque les produits présentent un taux de compacité et d'humidité ayant tendance à créer un phénomène de compression au fur et à mesure de leur extraction par gravité, dans la trémie.It therefore appears that, according to the state of the art, the cross-sectional profiles of the hoppers intended to be installed, in particular, between a silo and an evacuation conveyor, are not suitable when the products have a degree of compactness and efficiency. moisture tends to create a compression phenomenon as they are extracted by gravity, into the hopper.
L'invention s'est fixée pour but de remédier à ces inconvénients d'une manière simple, sûre, efficace et rationnelle.The object of the invention is to remedy these disadvantages in a simple, safe, effective and rational manner.
Le problème que se propose de résoudre l'invention est de proposer un profil particulier de la trémie, afin de faciliter l'écoulement, notamment par gravité, de tous types de produits en vrac, y compris lorsque ces derniers sont fortement compactés avec un taux d'humidité important.The problem to be solved by the invention is to propose a particular profile of the hopper, in order to facilitate the flow, especially by gravity, of all types of bulk products, including when these are highly compacted with a high rate. significant humidity.
Pour résoudre un tel problème, il a été conçu et mis au point une trémie d'extraction d'un produit stocké dans un silo notamment, et comprenant une extrémité de raccordement audit silo et une extrémité d'évacuation, caractérisée en ce qu'elle présente un profil en section transversale et en section longitudinale délimitant, depuis l'extrémité de raccordement jusqu'à l'extrémité d'évacuation, des zones successives aptes à décompresser le produit en créant des efforts orientés horizontalement, pour retenir progressivement le produit au fur et à mesure de son évacuation par gravité.To solve such a problem, it has been designed and developed a hopper for extracting a product stored in a silo in particular, and comprising a connection end to said silo and an exhaust end, characterized in that it has a profile in cross-section and in longitudinal section delimiting, from the connecting end to the discharge end, successive zones able to decompress the product by creating horizontally oriented forces, to gradually retain the product as and as it is evacuated by gravity.
Pour résoudre le problème posé de créer ce phénomène de décompression au fur et à mesure de l'extraction du produit, le profil en section longitudinale délimite, sur un côté au moins, des tronçons sous forme d'escaliers. Les tronçons sont de longueur dégressive depuis l'extrémité de raccordement jusqu'à l'extrémité d'évacuation.To solve the problem of creating this decompression phenomenon as the product is extracted, the longitudinal section profile delimits, on one side at least, sections in the form of stairs. The sections are of decreasing length from the connecting end to the discharge end.
Dans une forme de réalisation, les tronçons sont formés d'un côté, à partir d'un cylindre vertical constituant l'extrémité de raccordement. Le côté opposé à celui où sont formés les tronçons, est incliné en direction de l'extrémité d'évacuation.In one embodiment, the sections are formed on one side, from a vertical cylinder constituting the connecting end. The opposite side to where the sections are formed, is inclined towards the discharge end.
Avantageusement, le fond de ladite trémie constituant l'extrémité d'évacuation, est de largeur progressive depuis le côté incliné et en direction des tronçons, dans le sens d'écoulement de la matière.Advantageously, the bottom of said hopper constituting the discharge end, is of progressive width from the inclined side and towards the sections, in the direction of flow of the material.
L'invention est exposée ci-après plus en détail à l'aide des figures des dessins annexés dans lesquels :The invention is described below in more detail with reference to the figures of the accompanying drawings, in which:
- la figure 1 est une vue en perspective d'une forme de réalisation de la trémie selon l'invention ;- Figure 1 is a perspective view of an embodiment of the hopper according to the invention;
- la figure 2 est une vue de dessus de la trémie ;- Figure 2 is a top view of the hopper;
- la figure 3 est une vue en coupe longitudinale considérée selon la ligne 3-3 de la figure 2 ;- Figure 3 is a longitudinal sectional view taken along the line 3-3 of Figure 2;
- la figure 4 est une vue de face montrant un exemple d'application de la trémie selon l'invention, à une installation de cimenterie ;FIG. 4 is a front view showing an example of application of the hopper according to the invention to a cement plant;
- la figure 5 est une vue de côté correspondant à la figure 4.- Figure 5 is a side view corresponding to Figure 4.
Comme indiqué, la trémie d'extraction désignée dans son ensemble par (1) est destinée à être montée entre un silo (2) où sont stockés les produits en vrac et un tapis d'évacuation (3). La trémie (1) comprend une extrémité de raccordement (la) avec le fond du silo (2) et une extrémité d'évacuation (Ib) en communication avec le convoyeur d'évacuation (3) des produits.As indicated, the extraction hopper designated as a whole by (1) is intended to be mounted between a silo (2) where bulk products are stored and an evacuation belt (3). The hopper (1) comprises a connecting end (la) with the bottom of the silo (2) and an exhaust end (Ib) in communication with the evacuation conveyor (3) of the products.
Les liaisons d'accouplement entre la trémie (1), le silo (2) et le convoyeur (3) ne sont pas décrites en détail, car parfaitement connues pour un homme du métier, et ne font pas partie de l'objet spécifique de l'invention. Il en est de même en ce qui concerne la conception du silo (2) contenant les produits en vrac et du convoyeur (3) ou autre agencement d'évacuation desdits produits à la sortie de la trémie (1).The coupling links between the hopper (1), the silo (2) and the conveyor (3) are not described in detail, since they are perfectly known to a person skilled in the art, and are not part of the specific object of the invention. the invention. It is the same with regard to the design of the silo (2) containing the bulk products and the conveyor (3) or other arrangement for discharging said products at the outlet of the hopper (1).
Selon une caractéristique à la base de l'invention, la trémie (1) présente un profil en section transversale et en section longitudinale, apte à permettre de décompresser les produits sans les tasser, au fur et à mesure de leur extraction du silo (2) par gravité. Dans ce but, le profil de la trémie (1) délimite depuis l'extrémité de raccordement (la) jusqu'à l'extrémité d'évacuation (Ib) des zones successives aptes à décompresser les produits en créant des efforts orientés horizontalement pour retenir progressivement le produit, en évitant, par conséquent, tout phénomène de compression, sous l'effet de l'évacuation par gravité.According to a characteristic underlying the invention, the hopper (1) has a profile in cross-section and in longitudinal section, able to allow to unpack the products without packing them, as and when they are extracted from the silo (2). ) by gravity. For this purpose, the profile of the hopper (1) delimits from the connecting end (la) to the discharge end (Ib) successive zones capable of decompressing the products by creating horizontally oriented forces to retain gradually the product, avoiding, therefore, any phenomenon of compression, under the effect of evacuation by gravity.
Dans ce but, comme le montrent les figures 1, 2 et 3, le profil en section longitudinale de la trémie (1) délimite, sur un côté au moins, des tronçons (Ic) sous forme d'escaliers. Ces tronçons (Ic) sont, vus en plan, de largeur dégressive depuis l'extrémité de raccordement (la) jusqu'à l'extrémité d'évacuation (Ib).For this purpose, as shown in Figures 1, 2 and 3, the longitudinal section profile of the hopper (1) defines, on one side at least, sections (Ic) in the form of stairs. These sections (Ic) are, in plan, degressive width from the connecting end (la) to the discharge end (Ib).
Les différents tronçons (Ic) sont formés, par exemple, d'un côté à partir d'un cylinde ouvert (Id) constituant l'extrémité de raccordement (la). A l'opposé, la trémie (1) présente un côté incliné (le) en direction de l'extrémité d'évacuation (Ib). L'extrémité d'évacuation (Ib), qui constitue le fond ouvert de la trémie (1), est de largeur progressive depuis le côté incliné (le) et en direction du tronçon d'extrémité (Ic).The different sections (Ic) are formed, for example, on one side from an open cylinder (Id) constituting the connecting end (la). In contrast, the hopper (1) has an inclined side (1c) towards the discharge end (Ib). The discharge end (Ib), which constitutes the open bottom of the hopper (1), is of progressive width from the inclined side (Ic) and towards the end section (Ic).
Il apparaît donc que ce profil en section de la trémie (1), tant transversal que longitudinal, sous forme d'escaliers (Ic), favorise l'extraction de la matière, sans la comprimer vers la partie basse de la trémie, en ayant tendance à retenir progressivement les produits sous l'effet des efforts créés qui ne sont plus exclusivement orientés verticalement, mais également orientés horizontalement.It thus appears that this sectional profile of the hopper (1), both transverse and longitudinal, in the form of stairs (Ic), promotes the extraction of the material without compressing it towards the lower part of the hopper, tending to gradually retain the products under the effect of created efforts that are no longer exclusively oriented vertically, but also oriented horizontally.
Les figures 4 et 5 montrent l'application d'une trémie (1) selon les caractéristiques de l'invention, dans le cas d'une installation de cimenterie, et plus généralement dans tous types d'installations de dimensions importantes.Figures 4 and 5 show the application of a hopper (1) according to the features of the invention, in the case of a cement plant, and more generally in all types of large size installations.
Sans sortir du cadre de l'invention, la trémie peut être réalisée dans différentes dimensions et dans différents matériaux.Without departing from the scope of the invention, the hopper can be made in different dimensions and in different materials.
Les avantages ressortent bien de la description. The advantages are apparent from the description.

Claims

R E V E N D I C A T I O N SR E V E N D I C A T IO N S
-1- Trémie d'extraction (1) d'un produit stocké dans un silo (2) notamment, et comprenant une extrémité de raccordement (la) audit silo (2) et une extrémité d'évacuation (Ib), caractérisée en ce qu'elle présente un profil en section transversale et en section longitudinale délimitant, depuis l'extrémité de raccordement (la) jusqu'à l'extrémité d'évacuation (Ib), des tronçons (Ic) de longueur dégressive depuis l'extrémité de raccordement (la) jusqu'à l'extrémité d'évacuation (Ib), lesdits tronçons (Ic) étant formés d'un côté, à partir d'un cylindre (Id) constituant l'extrémité de raccordement (la), le côté (le) opposé à celui où sont formés les tronçons, est incliné en direction de l'extrémité d'évacuation (Ib), lesdits tronçons (Ic) en forme d'escaliers étant aptes à décompresser le produit en créant des efforts orientés horizontalement, pour retenir progressivement le produit au fur et à mesure de son évacuation par gravité.-1- extraction hopper (1) of a product stored in a silo (2) in particular, and comprising a connecting end (la) to said silo (2) and an exhaust end (Ib), characterized in that it has a profile in cross section and in longitudinal section delimiting, from the connecting end (la) to the discharge end (Ib), sections (Ic) of decreasing length from the end of connection (1a) to the discharge end (Ib), said sections (Ic) being formed on one side, from a cylinder (Id) constituting the connecting end (1a), the side (le) opposite to that where the sections are formed, is inclined towards the discharge end (Ib), said sections (Ic) in the form of stairs being able to decompress the product by creating forces oriented horizontally, to gradually retain the product as it evacuates by gravity.
-2- Trémie selon la revendication 1 , caractérisée en ce que le fond de ladite trémie constituant l'extrémité d'évacuation (Ib), est de largeur progressive depuis le côté incliné (le) et en direction des tronçons.-2- hopper according to claim 1, characterized in that the bottom of said hopper constituting the discharge end (Ib), is of gradual width from the inclined side (the) and in the direction of the sections.
-3- Trémie selon la revendication 1, caractérisée en ce que l'extrémité d'évacuation est en communication avec un convoyeur de transfert. -3- Hopper according to claim 1, characterized in that the discharge end is in communication with a transfer conveyor.
PCT/FR2009/051380 2008-07-22 2009-07-10 Tank for retrieving a stored material, particularly in a silo WO2010010273A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0854962 2008-07-22
FR0854962A FR2934251A1 (en) 2008-07-22 2008-07-22 EXTRACTION HOPPER OF A STOCKETED PRODUCT IN A SILO IN PARTICULAR

Publications (2)

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WO2010010273A2 true WO2010010273A2 (en) 2010-01-28
WO2010010273A3 WO2010010273A3 (en) 2010-03-18

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PCT/FR2009/051380 WO2010010273A2 (en) 2008-07-22 2009-07-10 Tank for retrieving a stored material, particularly in a silo

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FR (1) FR2934251A1 (en)
WO (1) WO2010010273A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2734459A4 (en) * 2011-07-22 2015-07-29 Quickthree Solutions Inc Vertically oriented transportable container with improved stability

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR458386A (en) * 1913-05-26 1913-10-09 Metallbank & Metallurg Ges Ag Loading hopper
FR2133576A1 (en) * 1971-04-20 1972-12-01 Jenike Et Johanson Inc
WO2003037753A1 (en) * 2001-11-01 2003-05-08 David Stuart Dick Improvements in and relating to dischargers for powders

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR458386A (en) * 1913-05-26 1913-10-09 Metallbank & Metallurg Ges Ag Loading hopper
FR2133576A1 (en) * 1971-04-20 1972-12-01 Jenike Et Johanson Inc
WO2003037753A1 (en) * 2001-11-01 2003-05-08 David Stuart Dick Improvements in and relating to dischargers for powders

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2734459A4 (en) * 2011-07-22 2015-07-29 Quickthree Solutions Inc Vertically oriented transportable container with improved stability

Also Published As

Publication number Publication date
WO2010010273A3 (en) 2010-03-18
FR2934251A1 (en) 2010-01-29

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