EP1625093B1 - Vorrichtung zum entfernen von einem viskosen produkt aus einem flexiblen behälter - Google Patents

Vorrichtung zum entfernen von einem viskosen produkt aus einem flexiblen behälter Download PDF

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Publication number
EP1625093B1
EP1625093B1 EP04707566A EP04707566A EP1625093B1 EP 1625093 B1 EP1625093 B1 EP 1625093B1 EP 04707566 A EP04707566 A EP 04707566A EP 04707566 A EP04707566 A EP 04707566A EP 1625093 B1 EP1625093 B1 EP 1625093B1
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EP
European Patent Office
Prior art keywords
flexible container
container
viscous product
optionally
piston
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.)
Expired - Lifetime
Application number
EP04707566A
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English (en)
French (fr)
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EP1625093A1 (de
EP1625093B2 (de
Inventor
Frédéric Mauger
Julien Craplet
Frederic Jean
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.)
Elkem Silicones France SAS
Original Assignee
Bluestar Silicones France SAS
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Priority claimed from FR0301724A external-priority patent/FR2851241B1/fr
Application filed by Bluestar Silicones France SAS filed Critical Bluestar Silicones France SAS
Priority to DE602004011209.7T priority Critical patent/DE602004011209T3/de
Publication of EP1625093A1 publication Critical patent/EP1625093A1/de
Publication of EP1625093B1 publication Critical patent/EP1625093B1/de
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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
    • B67D7/0216—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 by squeezing collapsible or flexible storage containers
    • 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
    • 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
    • B67D7/0227—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 by an ejection plunger
    • 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
    • B67D7/0238—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 utilising compressed air or other gas acting directly or indirectly on liquids in storage containers
    • B67D7/0244—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 utilising compressed air or other gas acting directly or indirectly on liquids in storage containers by using elastic expandable bags
    • 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
    • B67D7/0238—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 utilising compressed air or other gas acting directly or indirectly on liquids in storage containers
    • B67D7/0255—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 utilising compressed air or other gas acting directly or indirectly on liquids in storage containers squeezing collapsible or flexible storage containers
    • 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
    • B67D7/06—Details or accessories
    • B67D7/58—Arrangements of pumps
    • B67D7/62—Arrangements of pumps power operated
    • B67D7/64—Arrangements of pumps power operated of piston type
    • B67D7/645—Barrel pumps

Definitions

  • the present invention relates to a method of continuous or discontinuous emptying of viscous products contained in a flexible container, in particular of the "big bag” type, this emptying being effected by an opening provided in the lower part of the flexible container.
  • the invention also relates to a draining kit, including a device for emptying viscous products contained in flexible containers.
  • the viscous products referred to in the context of the invention are more particularly products whose viscosity is at least 10 Pa.s and preferably between 10 Pa.s and 200,000 Pa.s. viscosity being measured in a manner known per se at 25 ° C.
  • oils -1 silicone oils, silicone gums, polyorganosiloxane compositions (optionally in the form of aqueous emulsions) which can be crosslinked into elastomers by polyaddition, polycondensation or dehydrogen (poly) condensation reactions, organic polymers comprising groups reactive organosilicics (called MS polymers) and charged compositions, in a solvent or aqueous medium, comprising an acrylic polymer and crosslinkable elastomers by drying. It may be in particular silicone sealants but also other viscous polymeric products such as polyurethanes or viscous inks.
  • Such viscous products can be stored in bulk in flexible containers of the "big bag” type, before being discharged or injected into other containers or before being packaged in other packages.
  • the patent application DE-A-34 29 167 discloses a method and a device for emptying flexible containers for bulk particulate products.
  • the flexible container of "big bag” type is, on the one hand, suspended via the handles of which it is equipped, and on the other hand housed in a hopper, on which shaking is carried out by means of of an eccentric foot mobile in rotation and two other feet mounted on springs.
  • This vibration-emptying device does not seem suitable for viscous products contained in flexible bags.
  • techniques are known for emptying rigid drums of viscous products using a drum press comprising a pressure plate intended to penetrate and move in a drum to pressurize the viscous product contained in a bag under pressure. fine plastic, for example polyethylene.
  • the remote technological background also includes container emptying systems consisting of a rigid cardboard box containing a thin polyethylene bag filled with viscous products.
  • the emptying of this type of container is effected by means of a pressure plate capable of expelling the viscous product out of the polyethylene bag, said viscous product then being taken up by pumps provided for this purpose, to be conveyed to downstream elements.
  • GB 2 159 583 A describes the emptying of a flexible container containing a beverage.
  • one of the essential objectives of the present invention is to provide a method of emptying flexible containers for viscous products, which process must be easy to implement and economical.
  • Another essential objective of the invention is to provide a method of emptying flexible containers for viscous products and whose capacity is greater than or equal to 250 liters.
  • Another essential objective of the present invention is to provide a method of emptying flexible containers for viscous products, which is simple, inexpensive, which causes little loss of material, for example less than or equal to 1.5%, or even 0 , 8%, and that requires very little or no cleaning of the equipment used.
  • Another essential objective of the present invention is to provide a kit for emptying flexible containers, such as "big bag", for viscous products which is of simple and economical structure, which makes it possible to empty flexible bags with a capacity greater than or equal to 250 liters which is easy to use, generates very little material loss (less than or equal to 1.5%) and requires little or no cleaning.
  • Another essential objective of the invention is to provide a kit for emptying flexible containers for viscous products, in which the flexible container optimally meets the industrial requirements of transport and logistics.
  • the holding characteristic of the container or the flexible bag in the at least partially inflated state makes it possible to overcome the problem of clogging of the outlet orifice with conventional bags-liners, the problem of soiling the material and the problem of loss of material; the latter problem being at least partly solved by the technique according to the invention which allows a collapse in bellows (or "accordion") minimizing the loss of material.
  • Another advantage of the process of the invention is that it is possible to use containers whose capacity is greater than 250 liters, for example 1000 liters, which results in significant productivity gains both in terms of filling and cooling. draining viscous products.
  • One of the essential characteristics of the invention is therefore the implementation of a flexible container of the "big bag” type.
  • it is a container whose wall to be flexible does not remain less mechanically resistant and has moreover and preferably sealing properties vis-à-vis the viscous product considered.
  • 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.
  • 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 allows eg to avoid complicated "supply chain" rotations of metal containers.
  • viscous products concerned by the invention mention may be made of products whose viscosity is of the order of 3000 Pa.s, such as silicone mastics.
  • 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.
  • a draining device comprising, on the one hand, at least one pressing member comprising at least one piston and, on the other hand, at least one a drain tank for receiving the flexible container to be emptied or possibly only its bag-lining and designed as a female part adapted to cooperate and serve as a guide for the piston of the presser member moving, especially in the one-way direction corresponding to the pressurization of the flexible container or possibly its only bag-lining.
  • a pressure fluid contained in an inflatable cylinder this cylinder being housed between the piston (5.1) and a reversible closure lid of the vessel. (6) and connected to pressurizing fluid supply means for inflating and subsequently displacing the piston (5.1), to allow the expulsion of the viscous product (2) out of the tank (6).
  • the fluid used in the variant of the first mode and in the second embodiment can be a gas or a liquid. It can be a liquid having a viscosity less than or equal to 50 Pa.s. Water could be perfectly suitable for this purpose.
  • the process according to the invention is operational without mechanical recovery of the viscous product at the outlet of the container, it is quite possible to envisage the feeding of mechanical elements (for example: pumps, screws, double screws) by the viscous product. expelled in cases where it would be necessary to transport a great distance or through pipes generating high pressure losses, or even to derive an economic gain.
  • the viscous drained product can be routed to storage means or packaging means.
  • the viscous product expelled from the flexible container, or possibly its only bag-lining 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 set.
  • the flow 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 case of the supply 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 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 packaging assembly could be in particular a cartridge dispensing device for viscous products, in particular silicone sealants ("encartoucheuse”), with a flowrate adapted at least to the consumption of the packaging set.
  • encartoucheuse silicone sealants
  • the viscous product expelled from the flexible container feeds storage means and / or mechanical means for moving the viscous product to increase its flow, said mechanical means being preferably selected from the group consisting of: the pumps, the (double) -vis.
  • the method according to the invention is not limited as to the number of emptying devices and means of conditioning, storage or mechanical recovery arranged downstream.
  • the method according to the invention consists in taking advantage of the flexibility of the container containing the viscous product, by applying to the wall of this flexible container, a pressure which is almost entirely transmitted to the viscous product, so that the container is maintained in a container. at least partially inflated state and the viscous product is expelled.
  • This expulsion of the viscous, continuous or discontinuous product is effected by an opening in the flexible container (for example by cutting, unscrewing a cap, by a discharge chute), or by one or more openings provided in the means or the associated elements downstream of the emptying device.
  • the inflated state of the flexible container which results from the pressure exerted on only part of its surface makes it possible to maintain a permanent tension of the wall of the container and thus eliminates the risk of an uncontrolled folding likely to result in clogging of the container. opening by which is evacuated the viscous product.
  • the pressure exerted is, for example, between 1 and 6 bars in the case of direct discharge, while it is adjusted so that the output flow rate of the viscous product is greater than or equal to the consumption of the means of the elements arranged downstream of the device. emptying.
  • the flexible container and any remaining viscous product it contains is routed to a storage site.
  • This optional operation is fast enough so that it is possible to empty a new viscous product that is incompatible with the previous one after a period of not more than ten minutes, for example, from the end of the emptying of the product. previous to the beginning of the next product drain.
  • 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 optionally provided on the flexible container may be used for emptying or filling said container and may also act as a 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 may 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 emptying device comprises, on the one hand, a pressing member comprising at least one piston and, on the other hand, at least one emptying tank intended to receive the flexible container to be emptied and designed as a female part for the male part that is the piston of the presser member moving, especially in the forward direction corresponding to the pressurization of the flexible container or its only bag-liner.
  • the drain tank is designed so that it can be (hermetically) closed and in that the piston is able to move under the action of a fluid-pressure
  • the emptying device in accordance with the invention, to comprise an inflatable cylinder, housed between the piston and a reversible closure lid of the tank and connected to means for supplying fuel. 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 pressurizing-fluid supply means comprise at least one pressurizing fluid reservoir, at least one pressurizing fluid conveying means and a conduit equipped with these means and connecting the pressure-fluid reservoir to the inflatable cylinder.
  • the pressure-fluid is e.g. selected from the group of incompressible fluids, preferably in the subgroup comprising water or oil or in the group of compressible fluids, air being preferred.
  • the emptying device comprises at least one emptying tank intended to receive the flexible container to be emptied or possibly its only bag-lining and suitable for being pressurized by means of a pressurizing fluid, to expel the viscous product out of the tank.
  • the partial pressure exerted on the flexible container results (respectively indirectly and directly) from a pressing fluid consisting of any liquid or gaseous fluid, advantageously liquid, of viscosity less than 50 Pa.s.
  • a pressing fluid consisting of any liquid or gaseous fluid, advantageously liquid, of viscosity less than 50 Pa.s.
  • the drain tank is designed as an autoclave provided with at least one opening that can be open or closed and used to introduce and / or evacuate the pressure fluid.
  • this autoclave drain tank also includes at least one drain opening for the viscous product.
  • the emptying device comprises, on the one hand, a pressing member comprising at least one set comprising at least one roller and at least one counter-roller element, preferably at least two substantially parallel rollers and movable in rotation about their respective axes and, secondly, means for suspending the flexible container so that the (or) opening (s) are (s) arranged (s) down; the assembly being designed so that the two rollers are able to move from top to bottom while laminating and compressing the flexible container which passes between these two rollers, the latter possibly being drivable by a motor, this mechanization being possibly combined or replaced by a pull of the flexible container suspended upwards.
  • a drain tank comprises the device according to the invention
  • the dimensions of the flexible container and possibly of its bag-lining taken alone are chosen so that when pressurized, the container is maintained in the inflated or partially inflated state. Only the flexible container and / or its bag-lining are thus kept under tension, which limits the risk of unwanted refolding leading to clogging of the drain or openings.
  • the drain tank and the flexible container and / or the bag-liner have substantially the same shape, it is preferable that the dimensions of the flexible container and / or bag-liner are smaller in a proportion of 2 to 15% than those of the tank.
  • the backing roll may optionally be a plate associated with one or more rollers.
  • the plate can also be replaced by a plane support which can be for example a vertical wall or a horizontal plane (the ground).
  • the flexible container and / or its bag-lining has no surface irregularity in the substantially vertical direction (for example vertical seam or vertical blister or vertical asperities) on at least part of their height so that the contact of the flexible container and / or bag-lining with the inner face of the drain tank creates a substantially ring-shaped contiguous area barrier to viscous products.
  • This makes it possible to avoid the migration of the viscous product between the inner face of the tank and the upper part of the wall of the flexible container and / or bag-lining during the emptying, so that the inside of the tank is not not substantially soiled by the viscous product.
  • FIG. 1 shows a viscous product emptying kit (viscosity ⁇ at 50 Pa.s: for example 3000 Pa.s silicone sealant) comprising a viscous product discharge device 1, included in a flexible container 3.
  • viscosity ⁇ at 50 Pa.s: for example 3000 Pa.s silicone sealant comprising a viscous product discharge device 1, included in a flexible container 3.
  • the emptying device 1 comprises a structure or frame 4 on which is fixed a jack 5 comprising a piston 5.1 and a cylinder body 5.2.
  • the latter serves to actuate the pressure piston 5.1.
  • the latter has a maximum outside diameter slightly smaller than the minimum inside diameter of the tank (lower by 0.1 to 2.5%).
  • the emptying tank 6 equipped with rollers 7 constitutes another element of the emptying device 1.
  • the flexible container 3 is housed inside the emptying tank 6.
  • This flexible container 3 has a drain opening 9 formed in its lower part and disposed facing the outlet duct 8 of the drain tank 6. This opening emptying 9 is carried out just before pressurization by the pressure member -5, 5.1, 5.2- and after transporting the flexible container 3 from its storage site and / or transport to the emptying site defined by the drain tank 6.
  • O-ring 11 The seal between the piston head 5.1 (pressure member) and the internal face of the drain tank 6 is provided by an O-ring 11 which forms a barrier to the migration of the viscous product 2 above the piston head 5.1.
  • O-ring 11 has, for example, a cross-section of a diameter equal to 50 mm, plus or minus 20 mm, and its length is equal to the perimeter of the inside of drain tank 6, so that by acting on compressibility of the material constituting the O-ring 11, preferably made of elastomeric material, the continuity of this O-ring 11 is ensured. It is housed in the space delimited by an annular zone of the internal face of the cylindrical emptying tank 6 and by the Chamfered face of piston 5.1 (chamfer at 45 °). This chamfer is used to exert an oblique force on the elastomer ring 11 so that it is perfectly pressed against the inner face of the tank to ensure a good seal.
  • the transport of the flexible container from its storage site to the emptying site can be achieved for example by means of a forklift or a mobile hoist.
  • the flexible container has for example one or more resistant handles allowing it to be lifted by the means of transport.
  • the outlet duct 8 could be arranged on the piston head 5.1.
  • This outlet duct 8 allows the viscous fluid to be expelled from the emptying tank 2.2 because of the pressure difference between the inside of the flexible container 3 and the external pressure.
  • the diameter of this outlet duct is for example 76 mm.
  • This outlet duct 8 may comprise a hose for transporting the viscous product 2 to storage conditioning or mechanical recovery means arranged downstream.
  • this hose is removable so that it can be changed for each drained product.
  • outlet orifices could be provided for distributing the viscous product 2 over a plurality of storage conditioning or mechanical recovery means.
  • the receiver downstream of the outlet / flexible conduit 8 for example a packaging machine (eg a stamper), a recovery pump, a mixing screw, a container under particular pressure or at atmospheric pressure), and according to the dimensions of the downstream receiver elements crossed, some pressure is available at level of the outlet 8. This pressure is less than or equal to that to which the viscous product 2 is subjected in the flexible container 3.
  • the pressurization assembly 5 (piston 5.1 and cylinder 5.2), it is possible to impose on the flexible container, a pressure that is greater as the product 2 is viscous (for example up to 6.5 bars without technical difficulties) and that the required flow is high.
  • the method according to the invention controls the deformation of the flexible container during emptying, so that the container does not tear, folds optimally without plugging the outlet orifice 9.
  • the volume flow rates are measured from the mass passed in a given time and the density of the viscous product 2.
  • FIG. 2 shows a device similar to that of FIG. 1 as described above, in which the pressurizing fluid for carrying out pressurization is contained in a flexible inflatable jack 12 housed in the drain tank 60, between a plateau of 5.10 piston separation and a lid 13.
  • the latter can be reversibly attached to the top of the drain tank 60 by means of reversible fastening means 14 shown symbolically in Figure 2.
  • These means 14 are for example bolts.
  • the inflatable jack 12 inflatable can be for example of the type marketed by the company PRONAL.
  • the emptying tank 60 may be for example a stainless steel tank with a capacity of e.g. 1000 liters.
  • the emptying tank 60 contains in its lower part a flexible container 30 of viscous products 2.
  • the bottom of the flexible container has a drain opening 90 In the same way as for the embodiment according to FIG. 1, this emptying opening 90 is formed in the flexible container 30 just before being pressurized with the aid of the inflatable flexible jack 12.
  • An elastomeric seal 110 is interposed between the separation plate / piston 5.10.
  • This elastomeric seal 110 is an O-ring which plays the same role as that referenced 11 in Figure 1 described above. The seal on both sides of the piston plate 5.10 is thus ensured vis-à-vis the viscous product 2 contained in the flexible container 30.
  • the flexible inflatable cylinder 12 is connected to a pressure fluid reservoir 16, via a pipe 17, equipped with conveying means 17.
  • the pressure fluid may be an incompressible fluid, namely a liquid such as water or oil, or a compressible fluid such as air.
  • the means 17 for conveying the fluid contained in the reservoir 15 to the flexible inflatable cylinder 12 via the pipe 16 are constituted for example by a suitable pump. Since the pressure fluid is formed by compressed air, said conveying means 17 correspond to a compressed air circuit comprising all the suitable components known in themselves (valve, valve ).
  • the pressure fluid is an incompressible fluid of the oil or water type. It is then advantageous to provide, in the flexible inflatable cylinder 12, a cushion filled with compressible gas (for example air). Such a cushion behaves like a tampon to smooth the flow of the fluid and to limit or eliminate the flow latency of the viscous product at the opening of the drain tank.
  • a cushion filled with compressible gas for example air
  • the lid 13, or even the emptying tank 60 is equipped with a safety valve allowing the evacuation of the air overpressures.
  • the device of FIG. 2 is for example disposed upstream of means for packaging the viscous product, for example in cartridges.
  • FIG. 3 shows another embodiment of the emptying kit according to the invention.
  • This kit includes a drain device 20 and a flexible container 21, in the general shape of a pear.
  • the emptying device 20 consists of a set of two rollers 22, 23 connected to each other by a linkage system 24 for varying the distance between the axes of the rollers 22 and 23.
  • the flexible container 21 comprises a mechanically resistant wall 25 and an internal bag-lining 26 bonded to the inner face of the wall 25.
  • This flexible container 21 is also equipped in its lower part with an outlet duct 27 associated with a means of mechanical recovery 28 constituted by a pump.
  • the flexible container 21 comprises a lifting or suspension loop 29.
  • the rollers 22, 23 are brought closer to one another so as to press the upper part of the flexible container 21.
  • the rollers 22 and 23 thus brought together then begin their descent as symbolized by the vertical arrows.
  • the flexible container 21 is thus pressed progressively from its upper end to its lower end.
  • the viscous product contained in the container 21 is subjected to a pressure that depends on the strength of the container and flows through the outlet conduit 27. The extraction of this viscous product is facilitated by the implementation of the pump 28. It also appears that the pressurization by the rollers 22, 23 descendants, has the effect of keeping the container 21 in an inflated state.
  • the device used is that represented in FIG. 1 and described above. More precisely, in this example, use is made of a bowl press intended for emptying viscous products contained in tanks of diameter up to 1240 mm, said tanks being resistant to the working pressure.
  • This press has a steel structure, the structure maintains a cylinder in a vertical position.
  • the 20 cm diameter cylinder is hydraulic and operates with 0 to 250 bar of hydraulic pressure supplied by a hydraulic unit.
  • the pressure piston, actuated by the cylinder has a diameter of 1220 mm, plus or minus 3 mm.
  • a control cabinet is used to control the raising and lowering of the cylinder.
  • the tank used with an internal diameter of 1235 mm, plus or minus 10 mm, a depth of 1000 mm, is made of stainless steel and withstands a pressure greater than 7 bar.
  • the outlet opening of the product is located in the bottom of the tank, on the side.
  • a flexible, pressure-resistant hose connects the bowl port to the flap dispenser.
  • the hose has a length of one meter and an inside diameter of 76 mm.
  • the "big bag” tested is a "big bag” circular fabric whose perimeter is 3640 mm, significantly lower than the inner perimeter of the tank.
  • This "big bag” has a flat cylindrical bottom, a polyethylene bag with total opening 100 microns thick, not glued to the “big bag”, but stitched to it at the intersection between the cylinder (body of “big bag””) and the upper disc closing the upper part of the” big bag “.
  • the “big bag” has a filling chute placed on the top disc of the “big bag”, 5 cm from the edge (this chute can be used to perform a "clean” drain by serving as a drain chute, thus protecting against dirt and grease. orifice in the pressure plate).
  • the top disc and the chute are made of a polyethylene coated canvas, impervious to the contained product.
  • the flexible container contains 680 kg of product at the beginning of emptying.
  • the product contained in the flexible container for the test is a silicone sealant type Oxime.
  • the bowl has casters allowing it to move on flat ground.
  • the product contained in the flexible container for the test is a silicone sealant of Acetoxy type.
  • the flexible container is placed in the tank with a forklift. On the flexible container, a polyethylene film is placed, then the rubber seal against the edges of the tank.
  • the flexible container is drilled through the outlet: the slit is approximately 10 cm. Connect the hose to the outlet, then pressurize down the cylinder.
  • the metering machine's filler is filling quickly (less than 1 second, close to 0.5 seconds)
  • the flossing machine normally operates at 30 strokes per minute.
  • the material loss in the bottom of the flexible container is 8.6 liters or 1.26%.
  • the tank is mostly clean: only the parts near the outlet are soiled, or on a radius of 25 cm.
  • the device used is that represented in FIG. 1 and described above. More precisely, in this example, use is made of a bowl press intended for emptying viscous products contained in tanks of diameter up to 1240 mm, said tanks being resistant to the working pressure.
  • This press has a steel structure, the structure maintains a cylinder in a vertical position.
  • the 20 cm diameter cylinder is hydraulic and operates with 0 to 250 bar of hydraulic pressure supplied by a hydraulic unit.
  • the pressure piston, actuated by the cylinder has a diameter of 1220 mm, plus or minus 3 mm.
  • a control cabinet is used to control the raising and lowering of the cylinder.
  • the tank used with an internal diameter of 1235 mm, plus or minus 10 mm, a depth of 1000 mm, is made of stainless steel and withstands a pressure greater than 7 bar.
  • the outlet opening of the product is located in the pressure plate, on the side, about 15 cm from the edge of the plate.
  • a pressure-resistant steel pipe serves as a conveyor from the outlet port of the tray to the top of a discharge vessel.
  • the pipe is attached to the orifice of the pressure plate by a sealing connection.
  • the pipe has a total length of 2.5 meters and an inside diameter of 76 mm.
  • the "big bag” tested is a "big bag” circular fabric with staggered straps, height 1100 mm, its perimeter is 3640 mm, significantly lower than the inner perimeter of the tank.
  • This "big bag” has a flat cylindrical bottom, an opening polyethylene bag total thickness 100 microns, not glued to the “big bag” but stitched to it at the intersection between the cylinder (body of “big bag") and the upper disc closing the top of the “big bag”.
  • the "big bag” has a filler neck placed on the top disk of the "big bag”, 5 cm from the edge of the "big bag”.
  • the top disc and the chute are made of a polyethylene coated canvas, impervious to the contained product.
  • the container contains 680 kg of product at the beginning of emptying.
  • the bowl has wheels to move it.
  • the product contained in the flexible container for testing is an acetoxy silicone sealant.
  • the flow rate obtained at the outlet of the pipe is greater than 70 liters per minute, it oscillates especially around the value 120 liters per minute with a maximum of 145 liters per minute, for an oil pressure in the jack of 220 bars (this which corresponds to about 5.7 bars in the tank).
  • the presence of a filter grid in the pipe also limits the flow which could therefore be higher without this grid.
  • the flexible container weighed after emptying to a mass of 12 kg. The flexible container weighs 2 kg empty. The material loss is therefore 10 kg or 1.47%.
  • a bowl press which is resistant to working pressure and has a diameter of up to 1240 mm.
  • This press has a steel structure, the structure maintains a cylinder in a vertical position.
  • the 20 cm diameter cylinder is hydraulic and operates with 0 to 250 bar of hydraulic pressure supplied by a hydraulic unit.
  • the pressure piston, actuated by the cylinder has a diameter of 1220 mm plus or minus 3 mm.
  • a control cabinet is used to control the raising and lowering of the cylinder.
  • the tank used with an internal diameter of 1235 mm, plus or minus 10 mm, a depth of 1000 mm, is made of stainless steel and withstands a pressure greater than 10 bar.
  • the outlet opening of the product is located in the bottom of the tank, on the side.
  • a flexible, pressure-resistant hose connects the bowl port to the flap dispenser.
  • the hose has a length of one meter and an inside diameter of 76 mm.
  • the “big bag” tested is a “big bag” circular fabric whose perimeter is 3640 mm, significantly lower than the inner perimeter of the tank.
  • This "big bag” has a flat cylindrical bottom, a polyethylene bag of thickness 100 microns, not glued to the “big bag” but sewn to it at the intersection between the cylinder (body of the “big bag”) and the upper disc closing the upper part of the “big bag”.
  • the "big bag” has a filler neck that serves as a drain chute, placed on the upper disk of the "big bag", 5 cm from the edge, for emptying from above through an orifice in the pressure plate.
  • the top disc and the chute are made of a polyethylene coated canvas, impervious to the contained product.
  • the product contained in the flexible container for the test is a silicone sealant type Oxime.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Packages (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Basic Packing Technique (AREA)
  • Silicon Polymers (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Drying Of Solid Materials (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)

Claims (21)

  1. Verfahren zum Entleeren eines flexiblen Behälters (3, 21) vom Typ "Big Bag" mit einem Fassungsvermögen von größer oder gleich 250 Litern, der ein viskoses Produkt einschließt, gekennzeichnet durch die folgenden Schritte:
    • Das viskose Produkt (2) wird aus der Gruppe der Produkte gewählt, deren Viskosität wenigstens 10 Pa.s beträgt, vorzugsweise zwischen 10 Pa.s und 200000 Pa.s liegt, nämlich Silikonöle, Silikongummis, Organopolysiloxan-Zusammensetzungen (eventuell in der Form von wässrigen Emulsionen), die in Elastomere durch Reaktionen von Polyaddition, Polykondensation oder Dehydro(poly)kondensation vernetzbar sind, organische Polymere umfassend reaktive Organosiliziumgruppen (so genannte MS Polymere) und geladenen Zusammensetzungen in lösendem oder wässrigem Milieu, die ein Acrylpolymer umfassen und durch Trocknung in Elastomere vernetzbar sind;
    • es besteht im Wesentlichen aus
    - Bereitstellen eines flexiblen Behälters (3, 21) ;
    - eventuell Verlagern des zu entleerenden Behälters (3, 21) von seinem Lagerort zu einem Entleerungsort;
    - derartiges Vorgehen, dass wenigstens eine Austrittsöffnung (9), die im unteren Teil des Behälters (3, 21) angeordnet ist, den Ausfluss des viskosen Produktes (2) aus dem Behälter (3, 21) ermöglicht;
    - Ausüben eines Druckes auf wenigstens eine begrenzte Zone des flexiblen Behälters (3, 21) mit Hilfe von Mitteln zum Druckaufbauen, die vorzugsweise von wenigstens einer Druckeinrichtung (5, 22/23) und/oder von einem Druckfluid gebildet werden, um einerseits den Behälter (3, 21) in aufgeblasenem Zustand oder teilweise aufgeblasen zu halten und andererseits den Ausfluss zu beschleunigen;
    - Ablassen von Druck am Ende der Entleerung.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Wand des Behälters (3, 21) mechanisch widerstandsfähig ist und vorzugsweise undurchlässig gegenüber dem viskosen Produkt (2) und dass sie im Wesentlichen gebildet wird:
    • aus wenigstens einem Element (25), das die mechanische Widerstandsfähigkeit gewährleistet und eine oder mehrere Vliese aus zueinander identischen oder verschiedenen Materialien, vorzugsweise aus Leinen, umfasst;
    • und eventuell aus wenigstens einem Dichtungselement (26), das aus (i) wenigstens einem Polymerfilm, vorzugsweise in Form einer Beschichtung, und/oder (2i) aus wenigstens einer undurchlässigen Auskleidungstasche, die aus einer oder mehreren Schichten aus Materialien zusammengesetzt ist, die aus der Gruppe ausgewählt werden, welche die synthetischen Polymerfilme (insbesondere die Polyolefine {und ganz besonders noch die Polyethylene, die Polypropylene}, die Polyester oder die Polyamide), oder die Metalle (insbesondere das Aluminium) umfasst; wobei die Auskleidungstasche(n) wenigstens teilweise fest mit dem die mechanische Widerstandsfähigkeit gewährleistenden Wandelement verbunden ist (sind) und ganz besonders noch wenigstens teilweise auf das genannte Element geklebt und/oder genäht ist (sind).
  3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Austrittsöffnung(en) (9) des Behälters (3, 21) erzielt wird (werden):
    - Durch Einschnitt in die Wand des Behälters (3, 21);
    - und/oder durch Entfernen eines (von) Pfropfens (Pfropfen) oder Deckels (Deckeln), der (die) eine Öffnung (Öffnungen) ausrüstet (ausrüsten), wobei die genannte(n) Öffnung (en) mit Ablaufrinne(n) zum Entleeren der Wand des Behälters (3, 21) versehen sein kann (können);
    - und/oder Entfernen eines (von) die Öffnung(en) schließenden Bands (Bändern), das (die) bereits am Behälter (3, 21) vorgesehen ist (sind).
  4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass eine Vorrichtung zum Entleeren bereitgestellt wird, die einerseits wenigstens eine Druckeinrichtung (5) umfassend wenigstens einen Kolben (5.1), und andererseits wenigstens ein Gefäß zum Entleeren (6) umfasst, das dafür vorgesehen ist, den zu entleerenden flexiblen Behälter (3) oder eventuell lediglich seine Auskleidungstasche aufzunehmen, und wie ein umschließendes Teil konzipiert ist, das geeignet ist, mit dem Kolben der Druckeinrichtung (5) zusammenzuwirken und ihm bei Verschiebung als Führung zu dienen, insbesondere in der Hin-Richtung, die dem unter Druck setzen des flexiblen Behälters (3, 21) oder eventuell seiner einzigen Auskleidungstasche entspricht.
  5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass das Gefäß zum Entleeren (6) so konzipiert ist, dass es verschlossen werden kann, und dass der Kolben (5.1) geeignet ist, sich unter der Einwirkung eines Druckfluids zu bewegen, um das viskose Produkt (2) aus dem Gefäß (6) zu entfernen.
  6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass ein in einem aufblasbaren Zylinder enthaltenes Druckfluid bereitgestellt wird, wobei dieser Zylinder zwischen dem Kolben (5.1) und einem Deckel zum reversiblen Verschließen des Gefäßes (6) angeordnet und mit Mitteln zur Versorgung mit Druckfluid verbunden ist, welches das Aufblasen und als Folge das Verschieben des Kolbens (5.1) ermöglicht, um das Entfernen des viskosen Produktes (2) aus dem Gefäß (6) zu ermöglichen.
  7. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass eine Vorrichtung zum Entleeren bereitgestellt wird, die wenigstens ein Gefäß zum Entleeren (6) umfasst, das den zu leerenden flexiblen Behälter (3, 21) oder eventuell seine zur Druckbeaufschlagung geeignete einzige Auskleidungstasche aufnimmt, und dass dieses Gefäß (6) mittels eines Druckfluids unter Druck gesetzt wird, um das viskose Produkt (2) aus dem Gefäß zu entfernen.
  8. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass eine Vorrichtung zum Entleeren bereitgestellt wird, die einerseits wenigstens eine Druckeinrichtung (22/23) umfassend wenigstens einen Satz aus wenigstens einer Walze (22) und wenigstens einem Gegenwalzenelement (23), vorzugsweise wenigstens zwei im Wesentlichen parallele und um ihre jeweiligen Achsen drehbewegliche Walzen, und andererseits Mittel zum derartigen Aufhängen (29) des flexiblen Behälters (3, 21) umfasst, dass die Öffnung(en) unten angeordnet ist (sind); wobei die Einheit so konzipiert ist, dass die beiden Walzen (22/23) geeignet sind, sich von oben nach unten zu verlagern, um den flexiblen Behälter, der sich zwischen diesen beiden Walzen (22/23) durchdrückt, auszuwalzen und zu verdichten, wobei diese Letzteren eventuell durch wenigstens einen Motor in Drehung versetzt werden, wobei diese Mechanisierung eventuell durch ein vorteilhafterweise motorisiertes Ziehen des flexiblen, am oberen Ende aufgehängten Behälters kombiniert oder ersetzt wird.
  9. Verfahren nach einem der Ansprüche 2 bis 8, dadurch gekennzeichnet, dass das viskose Produkt, das aus dem flexiblen Behälter (3, 21) oder eventuell aus seiner einzigen Auskleidungstasche (26) entfernt wird, wenigstens eine Einheit zur Aufbereitung des genannten Produktes (2) in einer geeigneten Hülle versorgt, entsprechend einer angepassten Durchflussleistung, die größer oder gleich des Verbrauchs der Aufbereitungseinheit ist.
  10. Verfahren nach einem der Ansprüche 2 bis 9, dadurch gekennzeichnet, dass das viskose Produkt (2), das aus dem flexiblen Behälter oder eventuell aus seiner einzigen Auskleidungstasche entfernt wird, Mittel zur Aufbewahrung und/oder mechanische Mittel zum in Bewegung Setzen des viskosen Produktes versorgt, die es ermöglichen, seine Durchflussleistung zu erhöhen, wobei die genannten mechanischen Mittel vorzugsweise aus der Gruppe gewählt werden, die umfasst: Pumpen, (Doppel)-Schrauben.
  11. Gerät zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 10 mit einer Vorrichtung zum Entleeren, die wenigstens eine Druckeinrichtung (5, 22/23) und/oder wenigstens ein Druckfluid aufweist, dadurch gekennzeichnet, dass es umfasst:
    - ein viskoses Produkt (2), das aus der Gruppe der Produkte gewählt wird, deren Viskosität wenigstens 50 Pa.s beträgt, vorzugsweise zwischen 100 Pa.s und 10.000 Pa.s liegt, nämlich Silikonöle, Silikongummis, Organopolysiloxan-Zusammensetzungen, die in Elastomere durch Reaktionen von Polyaddition, Polykondensation oder Dehydro(poly)kondensation vernetzbar sind und organische Polymere umfassend reaktive Organosiliziumgruppen;
    - einen flexiblen Behälter (3, 21) vom Typ "Big Bag" mit einem Fassungsvermögen von größer oder gleich 250 Litern, der mechanisch widerstandsfähig und gegenüber dem viskosen Produkt undurchlässig ist, mit einer am unteren Teil des Behälters angeordneten Austrittsöffnung versehen und vorzugsweise mit Bügeln (29) zum Anheben und/oder Aufhängen ausgerüstet ist;
    - eventuell wenigstens eine Einheit zur Aufbereitung des viskosen Produktes (2) in einer geeigneten Hülle;
    - eventuell mechanische Mittel zum in Bewegung Ssetzen des viskosen Produktes, die es ermöglichen, seine Durchflussleistung zu erhöhen, wobei die genannten mechanischen Mittel vorzugsweise aus der Gruppe gewählt werden, die umfasst: Pumpen, (Doppel)-Schrauben;
    - und eventuell Mittel zum Aufbewahren.
  12. Gerät nach Anspruch 11, dadurch gekennzeichnet, dass der flexible Behälter (3, 21) eine Wand besitzt, die gebildet ist:
    • aus wenigstens einem Element (25), das die mechanische Widerstandsfähigkeit gewährleistet und eine oder mehrere Vliese aus identischen oder untereinander verschiedenen Materialien, vorzugsweise aus Leinen, umfasst;
    • und/oder aus wenigstens einem Dichtungselement (26), das aus (i) wenigstens einem Polymerfilm, vorzugsweise in Form einer Beschichtung, und/oder (2i) aus wenigstens einer undurchlässigen Auskleidungstasche, die aus einer oder mehreren Schichten aus Materialien zusammengesetzt ist, die aus der Gruppe ausgewählt werden, die umfasst: die synthetischen Polymerfilme (insbesondere die Polyolefine - und ganz besonders noch die Polyethylene, die Polypropylene - die Polyester oder die Polyamide), oder die Metalle (insbesondere das Aluminium); wobei die Auskleidungstasche(n) im Falle der Verwendung fest mit dem die mechanische Widerstandsfähigkeit gewährleistenden Wandelement verbunden ist (sind), wobei diese Tasche (diese Taschen) wenigstens teilweise auf das genannte Element geklebt und/oder genäht ist (sind).
  13. Gerät nach Anspruch 12, dadurch gekennzeichnet, dass der flexible Behälter (3, 21) eine Wand (25) besitzt, die mechanisch widerstandsfähig und undurchlässig ist, auf der Grundlage von Leinen hergestellt ist, dessen Gewicht im nicht überzogenen Zustand im Intervall von 100 bis 300 g/m2 liegt, und dass die Auskleidungstasche (26) eine Dicke besitzt, die in einem Intervall von 5 bis 500 Mikron liegt.
  14. Gerät nach einem der Ansprüche 11 bis 13, dadurch gekennzeichnet, dass die Vorrichtung zum Entleeren einerseits eine Druckeinrichtung (5) umfassend wenigstens einen Kolben (5.1), und andererseits wenigstens ein Gefäß zum Entleeren (6) umfasst, das dafür vorgesehen ist, den zu entleerenden flexiblen Behälter (3, 21) aufzunehmen, und wie ein umschließendes Teil für das eindringende Teil konzipiert ist, das der Kolben (5.1) der Druckeinrichtung (5) bei Verschiebung ist, insbesondere in der Hin-Richtung, die dem unter Druck setzen des flexiblen Behälters (3, 21) oder eventuell seiner einzigen Auskleidungstasche (26) entspricht.
  15. Gerät nach Anspruch 14, dadurch gekennzeichnet, dass:
    • Der Kolben der Druckeinrichtung (5) einen Kopf (5.1) (vorzugsweise kreisförmig) umfasst, der mit einer Stange verbunden und dafür vorgesehen ist, mit einem festen Zylinder (5.2) zum Antrieb in wechselseitiger Translationsbewegung zusammenzuwirken, wobei der Zylinder (5.2) an einer festen Struktur (4) montiert und der Kopf (5.1) dafür vorgesehen ist, in das Gefäß zum Entleeren (6) einzudringen, um den flexiblen Behälter (3) zu verdichten;
    • und das Gefäß zum Entleeren (6), das wenigstens eine Auslassöffnung (9) des viskosen Produktes (2) umfasst und eventuell mit Mitteln zum Verschieben (vorzugsweise Rollen (7)) ausgerüstet ist, vorzugsweise von einem für die Aufnahme des flexiblen Behälters (3) hohlen Zylinder gebildet ist, in dem der Kopf (5.1) des Kolbens gleiten kann, wobei dieser Kopf (5.1) vorzugsweise kreisförmig ist und einen Durchmesser aufweist, der ausreichend nah am Innendurchmesser des Gefäßes (6) liegt, damit die Dichtigkeit gegenüber dem viskosen Produkt (2) gewährleistet werden kann, vorzugsweise mit Hilfe eines O-Rings (11), der sich am vorzugsweise angefasten Rand des Kopfes (5.1) des Kolbens und an der Innenwand des Gefäßes (6) abstützt.
  16. Gerät nach Anspruch 14 oder 15, dadurch gekennzeichnet, dass das Gefäß zum Entleeren (6) so konzipiert ist, dass es geschlossen werden kann, und dass der Kolben (5.1) geeignet ist, sich unter der Einwirkung eines Druckfluids zu bewegen.
  17. Gerät nach einem der Ansprüche 11 bis 13, dadurch gekennzeichnet, dass die Vorrichtung zum Entleeren wenigstens ein Gefäß zum Entleeren (6) umfasst, das dafür vorgesehen ist, den zu leerenden flexiblen Behälter (3, 21) oder eventuell seine zur Druckbeaufschlagung mittels eines Druckfluids einzige Auskleidungstasche (26) aufzunehmen, um das viskose Produkt (2) aus dem Gefäß (6) zu entfernen.
  18. Gerät nach einem der Ansprüche 11 bis 17, dadurch gekennzeichnet, dass die Vorrichtung zum Entleeren einen aufblasbaren Zylinder (12) umfasst, der zwischen dem Kolben (5.10) und einem Deckel (13) zum reversiblen Verschließen des Gefäßes (60) angeordnet und mit Mitteln zur Versorgung mit Druckfluid verbunden ist, welche das Aufblasen und als Folge das Verschieben des Kolbens (5.10) ermöglichen, um das Entfernen des viskosen Produktes (2) aus dem Gefäß (60) zu ermöglichen.
  19. Gerät gemäß Anspruch 18, dadurch gekennzeichnet, dass die Mittel zur Versorgung mit Druckfluid wenigstens einen Tank für Druckfluid (15), Mittel zum Befördern (17) des Druckfluids und eine mit diesen Mitteln (17) verbundene Leitung (16) umfassen, die den Tank für Druckfluid (15) mit dem aufblasbaren Zylinder (12) verbindet.
  20. Gerät nach Anspruch 19, dadurch gekennzeichnet, dass das Druckfluid aus der Gruppe der inkompressiblen Fluide gewählt wird, insbesondere aus der Untergruppe umfassend Wasser oder Öl, oder aus der Gruppe der kompressiblen Fluide, vorzugsweise Luft.
  21. Gerät nach einem der Ansprüche 11 bis 13, dadurch gekennzeichnet, dass die Vorrichtung zum Entleeren einerseits eine Druckeinrichtung umfassend wenigstens einen Satz aus wenigstens einer Walze (22) und wenigstens einem Gegenwalzenelement (23), vorzugsweise wenigstens zwei im Wesentlichen parallele und um ihre jeweiligen Achsen drehbewegliche Walzen, und andererseits Mittel zum derartigen Aufhängen (29) des flexiblen Behälters (21) umfasst, dass die Öffnung(en) unten angeordnet ist (sind); wobei die Einheit so konzipiert ist, dass die beiden Walzen (22/23) geeignet sind, sich von oben nach unten zu verlagern, um den flexiblen Behälter (21), der sich zwischen diesen beiden Walzen (22/23) durchdrückt, auszuwalzen und zu verdichten, wobei diese Letzteren eventuell durch einen Motor in Drehung versetzt werden, wobei diese Mechanisierung eventuell durch ein vorteilhafterweise motorisiertes Ziehen des flexiblen, am oberen Ende aufgehängten Behälters kombiniert oder ersetzt wird.
EP04707566.8A 2003-02-13 2004-02-03 Vorrichtung zum entfernen von einem viskosen produkt aus einem flexiblen behälter Expired - Lifetime EP1625093B2 (de)

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FR0301724A FR2851241B1 (fr) 2003-02-13 2003-02-13 Procede de vidange d'un conteneur souple renfermant un produit visqueux
FR0307872A FR2851242B1 (fr) 2003-02-13 2003-06-30 Procede de vidange d'un conteneur souple renfermant un produit visqueux
PCT/FR2004/050039 WO2004074164A1 (fr) 2003-02-13 2004-02-03 Procede de vidange d’un conteneur souple renfermant un produit visqueux

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FR2851242B1 (fr) * 2003-02-13 2005-10-21 Rhodia Chimie Sa Procede de vidange d'un conteneur souple renfermant un produit visqueux
FR2880339A1 (fr) * 2004-12-31 2006-07-07 Rhodia Chimie Sa Procede de conditionnement d'un conteneur souple renfermant un produit visqueux
DE102007002379A1 (de) * 2007-01-16 2008-07-17 Wacker Chemie Ag Verfahren zur Herstellung von vernetzbaren Massen auf der Basis von Organopolysiloxanen
DE102009003044A1 (de) 2009-05-12 2010-11-18 Wacker Chemie Ag Verfahren zur Dosierung von Massen auf der Basis von Organopolysiloxanen
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KR20120065453A (ko) 2012-06-20
AU2004213207A1 (en) 2004-09-02
FR2851242A1 (fr) 2004-08-20
AU2004213207B2 (en) 2010-06-17
PL204468B1 (pl) 2010-01-29
KR20130112945A (ko) 2013-10-14
DE602004011209T3 (de) 2017-08-03
KR101414250B1 (ko) 2014-07-01
MXPA05008590A (es) 2006-02-28
US20100006594A1 (en) 2010-01-14
JP2006519143A (ja) 2006-08-24
RU2339557C2 (ru) 2008-11-27
KR20060018812A (ko) 2006-03-02
ATE383319T2 (de) 2008-01-15
DE602004011209D1 (de) 2008-02-21
EP1625093A1 (de) 2006-02-15
CA2515037C (fr) 2012-11-20
PL378631A1 (pl) 2006-05-15
ES2300744T5 (es) 2017-07-20
ES2300744T3 (es) 2008-06-16
US20060249535A1 (en) 2006-11-09
DE602004011209T2 (de) 2009-01-08
US8157127B2 (en) 2012-04-17
RU2005128515A (ru) 2006-01-27
WO2004074164A1 (fr) 2004-09-02
US8590740B2 (en) 2013-11-26
BRPI0407498A (pt) 2006-02-14
BRPI0407498B1 (pt) 2015-08-18
CA2515037A1 (fr) 2004-09-02
FR2851242B1 (fr) 2005-10-21
EP1625093B2 (de) 2017-03-08

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