Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
  • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
  • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
  • B67D7/02—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
• • 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
  • B65B69/00—Unpacking of articles or materials, not otherwise provided for
  • B65B69/0075—Emptying systems for flexible intermediate bulk containers [FIBC]
• • 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
  • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
  • B65B3/04—Methods of, or means for, filling the material into the containers or receptacles
  • B65B3/16—Methods of, or means for, filling the material into the containers or receptacles for filling collapsible tubes

Definitions

• the storage containers for the viscous product are advantageously flexible containers, in particular of the "big bag” type, and the volume conditioning units are, for example, cylindrical cartridges, boxes of all shapes made of metal, glass, plastic, paper or cardboard, aluminized or not.
• the invention also relates to a draining kit, including a mobile and autonomous machine for expelling the viscous product out of the flexible containers.
• Another essential objective of the present invention is to provide a method of packaging a viscous bulk product in volume units suitable for use and of low volume ( ⁇ 10 1), which process is lead to low material losses, for example less than or equal to 1.5% or even 0.8%, and which requires very little or no cleaning of the equipment used.
• Another essential objective of the present invention is to provide a packaging kit for a bulk viscous product ("big bag"), in volume units adapted to the use and of low volume ( ⁇ 10 1). which is lightweight, compact, simple, economical and inexpensive, that allows to empty flexible bags with capacity greater than or equal to 250 liters which is easy to use, which generates very little loss of materials (lower or 1.5%) and requires little or no cleaning.
• Another essential objective of the invention is to provide a packaging kit for a bulk viscous product ("big bag"), in volume units adapted to the use and of low volume ( ⁇ 10 1). , responding optimally to the industrial requirements of transport and logistics.
• the present invention which firstly relates to a method of packaging a viscous product contained in storage containers of capacity> 50 1, preferably> 100 1, in units suitable for use and of capacity ⁇ 50 1, preferably ⁇ 10 1, said viscous product preferably being selected from the group of products having a viscosity of at least 10 Pa ⁇ s and, preferably, between 10 Pa. S and 200,000 Pa.
• the mobile and autonomous expulsion machine can be associated on a packaging machine with a fixed hydraulic press.
• mode of implementation being preferably chosen from the group comprising: "the mode in which one has a mobile machine and two fixed machines for expulsion of non-flexible containers, by pair of conditioners;” the mode in which one has two machines movable emptying of flexible containers and a fixed machine for emptying non-flexible containers, by pair of conditioners; "the mode in which there are three mobile machines for emptying flexible containers, per pair of conditioners.
• One of the essential characteristics of the invention is therefore the implementation of a mobile and autonomous expulsion machine, which can be easily moved from one packaging machine to another and which is autonomous with regard to the emptying by expelling the viscous product out of the flexible container. To do this, it is equipped with expulsion means that are also mobile, lightweight, inexpensive and compact.
• the process according to the invention offers a wide range of emptying rates that can be varied depending on the viscosity of the product in question, the outlet diameter or the pressure value exerted.
• step gl) is exerted on at least one defined zone of the flexible container by means of pressurizing means belonging to the mobile machine and, preferably, constituted by at least one pressing member and / or a pressure fluid, so as, on the one hand, to maintain the container in the inflated or partially inflated state, and, on the other hand, allow the expulsion of the viscous product; g2) and / or the viscous product is pumped; g3) and, if necessary, depressurises at the end of expulsion.
• the mobile machine for expelling the viscous product out of the flexible containers comprises a tank intended to receive a flexible container.
• step e) consists in implementing at least one mobile and autonomous expulsion machine comprising at least one pressing member comprising at least one piston intended to exert a thrust on the flexible container.
• At least one mobile and autonomous expulsion machine comprising a vessel designed so as to be closed the piston of said machine being able to move under the action of a pressure-fluid , so as to expel the viscous product out of the tank.
• MS polymers Organic polymers comprising reactive organosilicon groups
• compositions in a solvent or aqueous medium, comprising an acrylic polymer and crosslinkable elastomers by drying; ° food products; ° agri-food products; ° the paintings; ° inks.
• the (or) opening (s) of exit of the container is (are) obtained (s):
• said orifice (s) can be provided (s) chute (s) drain the container wall,
• the viscous product expelled from the flexible container feeds at least one packaging unit of said product in a suitable packaging, at a suitable flow rate greater than or equal to the consumption of the packaging machine.
• the flow rate is advantageously the highest possible, (for example greater than 50 liters per minute for a viscous product of 1000 Pa ⁇ s) so as to provide maximum productivity, in the food case of a packaging machine, it is desirable to have high instantaneous flow rates (for example, may be greater than 1 liter per minute).
• the flow rate naturally depends on all the parameters of the Poiseuille law (viscosity, pressure difference, geometry of the outlet duct) and elements hindering the output of the viscous product: valves, filters, roughness.
• the viscous product expelled from the flexible container feeds mechanical means for setting the viscous product in motion interposed between the mobile and autonomous expulsion machine and making it possible to increase its flow rate, said mechanical means preferably being selected from the group consisting of: pumps, (double) -vis.
• the method according to the invention is not limited as to the number of mobile and autonomous expulsion machines, fixed expulsion machines, packaging machines, and any storage or mechanical recovery means arranged downstream.
• the present invention relates to a necessary for the implementation of the above-defined method, which necessary being characterized in that it comprises:
• ⁇ a viscous product selected from the group of products with a viscosity greater than or equal to 50 Pa.s, preferably between 100 Pa.s and 10,000 Pa.s,
• ⁇ flexible storage containers of capacity> 50 1 said flexible containers each comprising at least one outlet passage, possibly closed,
• At least one mobile and autonomous machine for expelling the viscous product out of the flexible containers associated with at least one packaging machine of the viscous product, in the units adapted to the use and of capacity ⁇ 50 1, possibly mechanical means of setting moving the viscous product to increase its flow, said mechanical means being preferably selected from the group consisting of: pumps, (double) -vis.
• this wall essentially consists of:
• At least one sealing element formed by (i) at least one polymer film, preferably in the form of a coating and / or (2i) with at least one waterproof lining bag composed of one or more layers of materials selected from the group consisting of: synthetic polymer films (in particular polyolefins
• This container formed by such a flexible envelope is a sufficient packaging in terms of protection of the viscous product. It is an autonomous packaging that can be transported easily, for example by simply being placed on a pallet and attached, or even included in other containers that are not involved in the emptying process, unlike bags polyethylene, which, in known manner, are housed in rigid containers for both transport and emptying.
• the flexible envelope container used in the process according to the invention can be for example a cloth bag (eg polypropylene) lined with a thin bag, for example multilayer (polyethylene / aluminum / polyethylene terephthalate) glued and / or stitched to the canvas, said container being optionally and advantageously provided with handles for suspending and handling with a hoist or forklift.
• a cloth bag eg polypropylene
• a thin bag for example multilayer (polyethylene / aluminum / polyethylene terephthalate) glued and / or stitched to the canvas
• said container being optionally and advantageously provided with handles for suspending and handling with a hoist or forklift.
• These flexible containers or “big bag” can have large capacities, for example between 500 and 2000 liters.
• the flexible envelope container can be disposable, which is a source of economy, particularly in terms of transport and storage. This avoids complicated "supply chain” rotations of metal containers
• the flexible container has a mechanically resistant and watertight wall made from fabric (s) whose weight in the uncoated state is in the range of 100 to 300 g / m 2 and that the bag-liner has a thickness in the range of 5 to 500 microns.
• it may be polypropylene fabric with a density of 150-300 g / m 2 for a 1000 liter container.
• the bag-lining is for example glued or sewn inside or outside the mechanically resistant wall.
• This bag-lining end can have a thickness of between 10 and 250 microns. It should be noted that the fabric thicknesses of the wall and the liner-bag are a function of the desired mechanical strength and physicochemical protection.
• the flexible container is provided with one or more discharge chutes, identical or different structure to that of the flexible container.
• each chute possibly provided on the flexible container may be used for emptying or filling said container and may also play the role shutter of an opening for example by means of a plug or a knotted link. This plug could consist of a weld and / or a glue joint.
• Each possible chute may furthermore constitute a connection element of the flexible container to a downstream mechanical recovery or conditioning storage means.
• the flexible container comprises at least one large opening or so-called “total" opening facilitating the filling.
• This large opening can be closed by welding and / or by a knot and / or by an adhesive joint. It is preferable that such a large opening is used only for filling, unlike the openings and / or drain channels as described above.
• the mobile and autonomous expulsion machine comprises:
• At least one pressing member comprising at least one piston intended to exert a thrust on the flexible container and which is able to move under the action of a pressure fluid, so as to expel the viscous product out of the tank ,
• a vessel comprising at least one exit opening of the viscous product, equipped with a reversible closure lid, equipped with displacement means (preferably rollers), and preferably constituted by a hollow cylinder intended for receiving the flexible container and in which the piston head is slidable, this head being preferably circular and of sufficiently close diameter to the inner diameter of the tank so that the seal with respect to the viscous product can be ensured, advantageously to using a peripheral O-ring bearing on the preferably chamfered edge of the piston head and on the inner wall of the vessel,
• At least one inflatable cylinder intended to receive the pressure fluid housed between the piston and a lid for closing the tank or the bottom of the tank, means for supplying fluid-pressure of the inflatable jack, said feeding means in pressurizing fluid allowing the inflation and consequently the displacement of the piston, to allow the expulsion of the viscous product out of the tank,
• the mobile and autonomous expulsion machine comprises at least one pressure fluid reservoir and a pipe connecting the fluid-pressure reservoir to the inflatable cylinder.
• the fluid-pressure is for example chosen from the group of incompressible fluids, preferably from the subgroup of liquids, eg with a viscosity of less than 50 Pa ⁇ s including water or oil or in the group of compressible fluids, with air being preferred.
• the drain tank is designed as an autoclave provided with at least one opening which can be open or closed and serving to introduce and / or evacuate the pressure fluid.
• this autoclave drain tank also includes at least one drain opening for the viscous product.
• the latter is disposed inside a tank 4, open at its upper end and generally cylindrical flat bottom.
• the open upper end of this tank 4, is hermetically closed by a lid 5, reversibly.
• This lid 5 comprises an orifice connected to an outlet duct 6 for conveying the viscous product 2 to a packaging machine included in the packaging kit according to the invention but not shown in the drawing.
• the flexible container 3 or "big bag” of viscous product 2 rests inside the tank 4 on a pressing member constituted by a movable piston 8.
• This pressing piston 8 has a maximum outside diameter slightly smaller than the inside diameter. of the tank 4 (for example 0.1 to 2.5% lower) so as to be able to slide easily.
• a flexible inflating cylinder 9 is housed in the tank 4 between the pressing piston 8 and the bottom of the tank 4.
• This flexible inflation cylinder 9 can be for example of the type marketed by the company PRONAL.
• the pressure fluid supply of the inflatable flexible cylinder 9 is effected via a pipe 10 passing through the bottom of the tank 4 and connected at its outer end to means 11 for conveying (pump) of the pressing fluid 12 contained in a tank 13.
• the connection tank 13 - pump 11 is provided by a pipe 14.
• the pressure fluid 12 may be an incompressible fluid, for example a liquid such as water or oil, or even a compressible fluid such as air.
• it is an incompressible fluid 12 (or oil) in such a case, it is advantageous to provide, in a variant, a cushion filled with compressible gas, for example This air cushion behaves like a buffer for smoothing the flow of the pressure medium 12 and to limit or even eliminate the latency times for the expulsion or the air flow. flow of the viscous product 2 outside the tank 4 through the outlet duct 6.
• the flexible container 3 housed inside the tank 4, has an outlet passage 15 of the viscous product 2.
• This passage 15 is provided in the upper part of the flexible container 3 during storage of the flexible container viscous product of this passage output 15 is closed.
• the closure of the outlet passage 15 is achieved by any appropriate means known to those skilled in the art, for example: bonding, thermo welding, sewing, gluing, stapling, etc.
• This outlet passage 15 is disposed in the vicinity of the orifice of the cover 5 connected to the outlet duct 6 to the conditioner.
• the opening of this outlet passage 15 is made just before the expulsion of the viscous product, that is to say just before the pressurization of the flexible container 3 by the pressure piston 8 actuated by the inflatable cylinder 9.
• the flexible container 3 has an envelope 16 which can be constituted:
• the flexible container 3 must be designed to ensure a minimum loss of material, especially less than 2%.
• the flexible container 3 is a "big bag” container with a cylindrical bottom, without vertical seam, whose diameter is slightly smaller than that of the tank 4, so that the swelling undergone by this flexible container during the pressurization keeps the wall of the flexible container 3 under tension during emptying.
• this wall consists of a polypropylene fabric having a glued inner layer formed by a bonded polyethylene bag-lining.
• This type of mechanically resistant wall has a role of protection during transportation and storage, while its inner layer (“inliner”) seals during the emptying, so that the viscous product flows only through the emptying opening of the envelope of the flexible container when it is pressurized.
• the seal between the head of the pressing piston 8 and the inner face of the tank 4 can be provided by an O-ring not shown in the drawing, which forms a barrier to the migration of the viscous product 2 in the volume compartment variable of the tank 4 containing the inflatable cylinder 9.
• This embodiment with a flexible inflating cylinder 9 is simple to implement and economical. It is also a lightweight press member, non-bulky, which participates in the advantages of the mobile and autonomous machine 1. The latter has the other advantage of being quickly mountable and removable.
• the lid 5 of the tank 4 may be equipped with a safety valve allowing the evacuation of air overpressures.
• the operation of the mobile and autonomous machine 1 is simply to inflate the flexible cylinder 9 with the aid of the pressure fluid, so as to compress the flexible container 3 and thus expel the viscous product 2 contained in this flexible container 3 to the outside the tank 4 through the outlet duct 6 towards the conditioner not shown in the drawing.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Basic Packing Technique (AREA)
• Packages (AREA)
• Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
• Bag Frames (AREA)
• Supply Of Fluid Materials To The Packaging Location (AREA)
• Supplying Of Containers To The Packaging Station (AREA)
• Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (2)

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Family Applications (1)

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Cited By (1)

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• 2004
  • 2004-12-31 FR FR0453281A patent/FR2880339A1/fr not_active Withdrawn
• 2005
  • 2005-12-28 ES ES05823827T patent/ES2324622T3/es not_active Expired - Lifetime
  • 2005-12-28 EP EP05823827A patent/EP1831099B1/de not_active Expired - Lifetime
  • 2005-12-28 KR KR1020077017748A patent/KR101274262B1/ko not_active Expired - Fee Related
  • 2005-12-28 CN CNA2005800455222A patent/CN101111451A/zh active Pending
  • 2005-12-28 JP JP2007548826A patent/JP2008526625A/ja active Pending
  • 2005-12-28 WO PCT/EP2005/057204 patent/WO2006070010A1/fr not_active Ceased
  • 2005-12-28 US US11/813,169 patent/US20080257447A1/en not_active Abandoned
  • 2005-12-28 PL PL05823827T patent/PL1831099T3/pl unknown
  • 2005-12-28 DE DE602005013427T patent/DE602005013427D1/de not_active Expired - Lifetime
  • 2005-12-28 AT AT05823827T patent/ATE425937T1/de active

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