FR2644148A3 - DEVICE FOR FILLING CONTAINERS WITH BULK MATERIAL - Google Patents

Abstract

A device for filling containers 5 with a bulk material comprises a silo 2 for storing the product; a faired chute 13 for mechanical conveying, connected to said silo 2 and able to be driven by a pivoting and / or a movement; a gas transfer pipe 16, connecting said silo 2 and said chute 13; a tilting container support 7; and a scale 11 and / or a filling level measuring system, connected to said container rest 7.

Description

DEVICE FOR FILLING CONTAINERS WITH BULK MATERIAL

  The present invention relates to a device for em-

  pleating of containers with bulk material.

  Containers are widely used for trans-

  port of retail goods, primarily during combined transport by road, rail and sea.

  They are also used, more and more, for the convoya-

  age of bulk materials. To this end, we frequently use

  special containers, for example those which can be opened in the upper part, for loading, and are provided with inclined bottoms and orifices for emptying. These containers can be filled using conveyor belts

  mobile, and similar conveying devices. A drawback

  deny however lies in the fact that, following the presence

  of the discharge cone, the available volume cannot be ex-

  used only insufficiently if no additional devices are used. In addition, during this open loading, a release of dust can hardly

  be prevented. In addition, the use of special containers

  also involves economic disadvantages since very often no appropriate return or

  are not assigned to the place of destination

  tion, and therefore should, as a rule, be

  empty reshipments. Similar problems also arise.

  when using standard containers that can be filled from the far side through

  corresponding holes in the upper part.

  To take better advantage of the volume of the containers and to

  prevent dust generation, systems have been developed

  container inlet systems which consist of a bag

  plastic material, as well as a per-

  cee of closable filling and emptying orifices.

  In the presence of a standardized container arranged horizontally-

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  These intake systems are pneumatically filled with a dry and fluid aggregate. The escaping air enters the atmosphere through filters. However,

  the pneumatic loading is affected by the inconvenience

  both in that it can be used exclusively in the presence of a loose material which has good fluidity and is

  very resistant to abrasion, or in which a percentage

  increased age in fine substances plays no role. In the case of hygroscopic materials or subject to oxidation, conveying gases respectively inert or subjected to drying

  must be used in place of ambient air.

  The object sought was, therefore, to develop

  a device for filling containers standardized by a material

  loose material, which can also be used for products of poor fluidity, and allows both a

  maximum use of the container volume, and a filling

  Age free of dust and causing low abrasion.

  In accordance with the invention, this object is achieved by a device comprising a means for storing the product; an encapsulated mechanical conveying system, connected to said storage means and capable of being pivoted and / or moved; a gas transfer line, connecting the

  storage medium and conveyor system; a rest

  tilting containers; and a balance connected to said rest

  containers and / or a filling level measuring system.

  The type of product storage means depends on the material.

  riau in bulk, and its manufacturing process. If the story

  neur can be directly loaded on the production site, it is often enough to use a small storage medium

  intermediate, for example one or more "big bags". Any-

  sometimes fragile materials are preferably stored in

  desilos provided with a closable drain.

  All mechanical and encapsulated conveyor systems

  of a known type, such as chutes, oscil conveyors

  lants and bands, can be used as a system

  conveyor. Compared to pneumatic conveying systems

2644 1 48

  ques, they offer the advantage of also allowing the convoya-

  age of a material of a less good fluidity, and to cause

less abrasion.

  The balance may consist, for example, of a conventional mechanical scale of a common type for weighing motor vehicles. However, you can also use, instead,

  a rigid panel resting on at least three dynamometer boxes

  triques. Instead of or in addition to a scale, the conveyor system can also be equipped with a filling level measuring system, which gives a signal as soon as the container is filled. In this way, the

  loading. However, this system is not necessary in advance.

  sence of materials of known and constant bulk weight, other than

  unless, in most cases, the container must be filled with a certain quantity of the bulk material, and therefore it cannot be abandoned for use

of a balance.

  The invention will now be described in more detail at

  title of example in no way limiting, opposite the drawing anne-

  xed whose single figure schematically illustrates the mode

  of action of the device according to the invention.

  The single figure shows the device during filling.

  of a container 5. Extruded pitch, a very brittle material in the form of sausages with a length of about 5 cm to 10 cm and a thickness of 1 cm, is poured into a silo 2 via of a bucket conveyor 1. To prevent the pitch from bursting, silo 2 is internally provided with a

  helical corridor 3, extending almost to the bottom. The ori-

  fice practiced at the bottom of silo 2 is closed with a

  slide 4, associated with a servomotor. A cell wheel lock

  the space can also be used in place of runner 4.

  The container 5 is placed, by means of a crane or a lifting machine, on a tilting platform 6 which is equipped with a container rest 7, a tilting device 8

  and an amount of support 9. The tilting plate 6 is re-

  linked by its underside to a rigid panel 10 whose

2644 1 48

  corners rest on four load cells 11.

  When the end face of the container 5 has an opening

  this spill in its upper region, this orifice is

  open. In the presence of standardized containers, fitted with

  at their end faces, these doors are open and a partition, pierced with an upper discharge orifice, is inserted into the end face. Container 5 is tilted, with

  the tilting plate 6, until its tilting angle-

  ment is about 10 degrees higher than the angle of release

  pitch, and that the discharge opening is at the highest point. A streamlined chute 13 guided on a slide 12 is now moved below the slide 4, so that its discharge engages in the discharge orifice of the container 5. This discharge orifice is then closed, with sealing dust, by a sealing plate 14 located at the outlet of the chute 13. By means of a control pulse, a regulator 15 puts

  runs the servomotor of slide 4 and opens this

  smooth 4. Pitch flows into container 5 via

  re from the chute 13. The dust-laden air, which is then discharged, is returned to silo 2 via a

  gas transfer line 16, connected to chute 13.

  The dynamometric boxes 11 are also connected

  to regulator 15, through which the process of em-

  pleating can be monitored. When the container 5 contains the preset amount of pitch, the actuator is activated and

  the slide 4 is closed. As soon as chute 13 is visible

  dée, which can be accelerated using a vibrator, it is brought back to the starting position. The container 5 is closed, brought back by tilting to the horizontal position, then deposited on the transport vehicle by means of a crane. Despite the

  modest fluidity and the friability of the extruded pitch, the

  neur could be filled, using the device according to the

  vention, without release of dust and for only

  low abrasion, its volume having been almost complete-

ment exploited.

  It goes without saying that numerous modifications can be made to the device described and shown, without departing from the

part of the invention.

Claims (5)

R E V E N D I C A T I 0 N S-   1. Device for filling containers with a bulk material, device characterized in that it comprises a means (2) for storing the product; a shrouded mechanical conveying system (13), connected to said storage means and capable of being pivoted and optionally, or alternatively,   a trip; a gas transfer line (16),   linking the storage means (2) and the conveyor system (13); a tilting container rest (7); and a balance (11) and optionally, or alternatively, a measuring system   filling levels, connected to said container rest.   2. Device according to claim 1, characterized in that the means (2) for storing the product is a silo, at the outlet of which is installed a slide (4) associated to a servo motor.   3. Device according to claim 1 or 2, characterized in that the conveying system (13) is a chute equipped with a vibrator.   4. Device according to claim i or 2, characterized in that the conveying system (13) is a conveyor oscillating or band (s).   5. Device according to any one of the claims   1 to 4, characterized in that the evacuation of the   conveyor (13) is provided with a sealing plate (14).