CN1759064B - Method of draining a flexible container housing a viscous product and units for implementing the method - Google Patents

Abstract

The invention relates to a method and a kit for draining a flexible container housing a viscous product which is selected from the group of products having a viscosity of between 10 Pa.s and 200 000 Pa.s, e.g. silicon gums or oils. The inventive draining method essentially consists in: using a flexible container (3); optionally, moving the container (3) to be drained from the storage site thereof to a drainage site; ensuring that the viscous product (2) can flow from the container (3) through at least one outlet (9) which is preferably disposed in the lower part of same; exerting a pressure on at least one defined area of the flexible container (3) using pressurising means which preferably consist of at least one pressure member (5) and/or a pressure fluid, such as to (i) maintain the container (3) in the inflated or partially-inflated state and (ii) hasten the flow; and, finally, removing the pressure once the container has been drained. The drainage kit consists of the viscous product (silicon mastic), a big-bag-type flexible container (3) and a draining device comprising at least one pressure member [piston (5) or set of rollers] and/or a pressure fluid.

Description

Method for emptying flexible containers containing viscous products and kits for carrying out the method

technical field

The invention relates to a method for the continuous or discontinuous discharge of viscous products contained in flexible containers, especially of the bag type, wherein the emptying takes place through an opening located in the lower part of the flexible container. the

The invention also relates to an emptying kit comprising in particular a device for emptying viscous products contained in flexible containers. the

The viscous products that the present invention relates to especially refer to those products whose viscosity is at least 10 Pa.s, and ^preferably 10 to 200000 Pa.s, i.e. silicone oil; ; a polyorganosiloxane composition (optionally in the form of an aqueous emulsion) which can be crosslinked to form an elastomer by polyaddition, polycondensation or dehydrocondensation (poly) reactions; injection into a solvent or aqueous medium containing a reactive organic Organic polymers and compositions of silicon groups (known as MS polymers), which contain acrylic polymers and can be crosslinked by drying to form elastomers. In particular, it may be silicone putties or other viscous polymeric products such as polyurethanes or viscous inks.

Viscous products may be stored in bulk in big bag type flexible containers prior to being poured or injected into other containers or filled into other packaging. the

The high viscosity of these pasty products is naturally an important technical limitation in terms of discharging the product or transporting it between containers. the

Background technique

In a field similar to the present invention, i.e. of low-flowing granular/powdered materials, patent application DE-A-3429167 describes a method for emptying flexible containers for batches of granular products and equipment. According to this document, on the one hand the flexible container of the big bag type is suspended by its equipped handle, on the other hand it is accommodated in a feed hopper via an eccentric support which can be moved in rotation and two other The bracket mounted on the spring rocks. The vibratory emptying device does not appear to be suitable for viscous products in soft bags. the

Also known is the technique of emptying rigid cylinders filled with viscous products by means of a cylinder press comprising a platen for pressing into and moving inside the cylinder to expel under pressure a material such as Viscous product in a thin plastic bag made of polyethylene. the

There is also a method of discharging an extrudate containing a viscous silicone product by means of a device formed by a tube for receiving the extrudate and in which there is a piston for squeezing the viscous product, the piston can The movement is such that the extrudate is expelled out of the tube. the

Also included in the extensive background art are systems for emptying containers consisting of rigid cardboard boxes containing thin polyethylene bags containing sticky products. Such containers are emptied by means of a platen that can discharge the viscous product from inside the polyethylene bag, which is then collected by a pump that collects the viscous product before being conveyed to downstream elements. the

These last three known techniques are beyond the scope of the present invention, which is the emptying of big bag type flexible containers rather than the specialized and complex containers used in these techniques (cartridges, tanks, steel containers or specialized rigid containers). cardboard). the

Contents of the invention

Here, the basic object of the invention is to provide a method for emptying flexible containers with viscous products which should be easy to use and economical. the

Another basic object of the present invention is to provide a method for emptying containers with a capacity greater than or equal to 250 liters and containing viscous products. the

Another basic object of the present invention is to provide a method for emptying flexible containers filled with viscous products which is simple and economical and which produces very little loss of material, for example less than or equal to 1.5%, or even 0.8%, And requires little or no cleaning equipment. the

Another basic object of the present invention is to provide a kit for emptying flexible containers of the large bag type with viscous products, which has a simple and economical structure and is capable of emptying flexible bags with a capacity greater than or equal to 250 liters , which is simple to use and produces minimal material loss (less than or equal to 1.5%), and requires little or no cleaning. the

Another basic object of the present invention is to provide a kit for emptying flexible containers filled with viscous products, wherein the flexible containers optimally meet industrial transport and replenishment requirements. the

These objects can be achieved in particular by the present invention, which firstly relates to a method for emptying a flexible container containing a viscous product, characterized in the following points:

Viscous products are selected from products with a viscosity of at least 10 Pa.s, preferably 10 to 200,000 Pa.s, i.e. silicone oils; silica gels; polyorganic polymers that can be crosslinked to form elastomers by polyaddition, polycondensation or dehydrocondensation (poly) reactions A silicone composition (optionally in the form of an aqueous emulsion); an organic polymer containing reactive silicone groups (known as an MS polymer) and an acrylic-containing polymer injected into a solvent or aqueous medium and can be passed through drying and crosslinking to form an elastomeric composition;

●The method basically includes:

- use soft containers;

- optionally moving the container to be emptied from its storage position to the emptying position;

- ensure at least one discharge hole to allow the viscous product to flow out of the container, preferably the discharge hole is placed in the lower part of the container;

- exerting pressure in at least one defined area of the flexible container by means of pressurizing means, preferably consisting of at least one pressure element and/or pressurized fluid, on the one hand maintaining the container in an inflated or partially inflated state and on the other hand accelerating the flow ;

- Decompression at the end of emptying. the

The inventors have succeeded in developing a method for emptying flexible containers filled with viscous products, thereby making it possible to dispense with the inconvenient, bulky and complicated conventional containers. the

The feature of keeping the container or flexible bag at least partially inflated, in particular overcomes the problems of traditional liner bags blocking the discharge holes, the problem of contaminated material and the problem of material loss; the latter is at least partially solved by the method of the present invention, which The inventive method allows compression into pleats (or like a concertina) so that material loss is minimized. the

Another advantage of the method of the invention is that it is possible to use containers with a capacity greater than 250 liters, for example 1000 liters, which will allow a significant increase in productivity in terms of filling and discharging viscous products. the

It should be noted that all viscosity values used in this specification correspond to viscosities determined with known methods at 25° C. and a shear gradient of 0.01·s ⁻¹ .

One of the essential features of the present invention is thus the use of flexible containers of the big bag type, for example. Advantageously is a container whose container wall, despite its softness, is still mechanically strong and preferably leak-free for the viscous product. the

According to a preferred feature of the present invention, the container wall essentially comprises:

at least one element providing mechanical strength comprising one or more sheets of material, the same or different from each other, preferably a fabric;

and optionally comprising at least one sealing element formed from (i) at least one polymeric film, preferably in the form of a coating, and/or (2i) at least one leak-proof liner bag, the The liner bag consists of one or more layers of material selected from synthetic polymer films (especially polyolefins, more preferably polyethylenes, polypropylenes, polyesters or polyamides) or metals (especially aluminium) , the liner bag is at least partially fixed to the wall element providing mechanical strength, even more preferably at least partially adhesively bonded and/or sewn to said element. the

A container formed from such a flexible casing is an adequate package in terms of protecting the viscous product. The container is an individual package for easy transport, for example by simply placing it on a palette and securing it, compared to polyethylene bags which are placed in a rigid container for transport and emptied by known methods, Alternatively it can also be placed in a container not covered by other emptying methods. the

The soft-shell container according to the method of the invention can be, for example, a fabric (e.g. polypropylene) bag lined with, for example, a thin multilayer bag (polyethylene/aluminum/polyethylene terephthalate) lined with Bonded and/or sewn to the fabric, the container is optionally advantageously provided with a handle so that it can be hung and handled with a belt winch or forklift. the

These flexible containers or big bags can have a large capacity, for example between 500 and 2000 liters. the

Especially with regard to transport and storage, the soft shell container can be conveniently handled. For example, complex supply chain rotations of metal containers can be avoided. the

As a product with a viscosity grade of 3000 Pa.s, for example silicone putty can be exemplified as a viscous product of the present invention. the

According to the method of the present invention, a wide range of discharge rates can be provided, which can be achieved by changing the diameter of the outlet or changing the value of the applied pressure in relation to the viscosity of the product. the

In this approach, the desired cleaning economy is achieved by minimizing the surface area of the material in contact with the product. the

According to the advantageous feature of the inventive method, the discharge hole of container can obtain like this:

- by cutting through the container wall;

- and/or by removing plugs or capsules fitted to one or more outlets, in which case said outlets may be provided with spouts for discharge out of the container wall;

- and/or by removing the tape already provided on the container to close the opening. the

Thus, it is actually possible to cut away part of the wall of the flexible container or to equip it with a spout, or to untie the bands and/or knots closing the opening. the

According to a first embodiment of the method according to the invention, an emptying device is provided comprising, on the one hand, at least one pressure element with at least one piston, and, on the other hand, at least one emptying vessel for receiving the The container or optionally just its liner bag, and it is designed as a female part capable of interacting with and guiding the piston of the pressure element as it moves, especially in the case of flexible containers or any Optionally only the direction of pressurization of the liner bag is consistent with the forward direction. the

According to the variation of the first embodiment:

● design the emptying vessel to be (tightly) closed;

●The piston can move under the action of pressure fluid. the

In a variant embodiment, it is advantageous according to the invention to use pressurized fluid contained in an expandable jack (jack) arranged between the piston and the reversible closure lid of the emptying vessel and connected to the Inflatable pressurized fluid supply to move the piston to expel the viscous product from the emptying vessel. the

According to the second embodiment of the inventive method:

The provided emptying device comprises at least one pressurizable emptying container, which is used to receive the flexible container to be emptyed or optionally only its inner bag;

• The emptying vessel is pressurized with pressurized fluid to expel the liquid product from the emptying vessel. the

According to the third embodiment of the method of the present invention, the provided emptying equipment comprises:

In one aspect, at least one pressure element having at least one assembly comprising at least one roller element and at least one counter-roller element, preferably at least two rollers that are substantially parallel and move in rotation along their respective axes;

On the other hand, means for suspending flexible containers in order to provide openings at the bottom;

The assembly is designed so that two rollers can move down and simultaneously crush the flexible container moving between the two rollers, the rollers are optionally driven in rotation by at least one motor, the mechanization can optionally and preferably Mechanized upward traction of suspended flexible containers is incorporated or replaced by it. the

The fluid used in variants of the first and second embodiments may be a gas or a liquid. It can be a liquid with a viscosity less than or equal to 50 Pa·s. Water is perfectly suitable for such purposes. the

Although it is not necessary to provide a mechanical collection of the viscous product at the outlet of the container, the method according to the invention is still effective, in the case of transportation over long distances or through conduits with large pressure losses, or in order to obtain economic benefits thereby, by using It is also entirely possible to provide assistance to mechanical elements (eg pumps, screws, twin screws) that evacuate viscous products. the

According to one embodiment, the discharged viscous product can be transferred to a storage device or a packaging device. the

According to a preferred solution of the present invention, the viscous product discharged from the flexible container or optionally only from its liner bag is supplied to at least one The components of the product are packaged in suitable packaging. the

Although the highest possible flow rate is advantageous for a single emptying (for example, a flow rate of more than 50 l/min for a viscous product of 1000 Pa. Flow rates (eg, may be greater than 1 liter/minute) are also desirable. The flow rate naturally depends on all the parameters of Poiseuille's law (viscosity, differential pressure, geometry of the outlet conduit) and the factors preventing the discharge of the viscous product: valve, filter, roughness. the

By way of illustration, the packaging assembly may in particular be a device for cartridging a viscous product, in particular silicone putty ("cartridger"), at a suitable flow rate greater than or equal to the consumption of the packaging assembly. the

According to another preferred version of the invention, the viscous product discharged from the flexible container or optionally only from its liner bag is supplied to a device for storing the viscous product and/or a mechanical device for moving the viscous product to increase its flow rate , the mechanical device is preferably selected from a pump or a (twin) screw. the

Of course, the method of the invention is not limited in terms of the number of emptying devices and devices arranged downstream for packaging, storage or mechanical collection. the

The method according to the invention consists in utilizing the flexibility of the container containing the viscous product by exerting pressure on the walls of the flexible container which is almost completely transmitted to the viscous product to keep the container at least partially inflated, thereby releasing the viscous product discharge. Viscous products are discharged continuously or discontinuously through an opening in a flexible container (e.g. by cutting, unscrewing a stopper, via a discharge spout), or through one or more openings provided in the device or in a connected element downstream of the emptying device discharge. The expanded state of the flexible container is induced by pressure applied only to a part of its surface and enables a constant tension in the container walls, thus avoiding the risk of arbitrary folding that could easily lead to blockage of the discharge opening of the viscous product. the

In the case of direct emptying, the applied pressure is, for example, between 1 and 6 bar, the pressure being adjusted such that the discharge speed of the viscous product is greater than or equal to the consumption of the element arrangement arranged downstream of the device. the

At the end of the emptying, the flexible container (and thus the product) is partially or completely decompressed according to the invention. the

If and when the container to be emptied has a storage position other than the emptying position, the flexible container and any remaining viscous product therein are returned to the storage position. Optionally the operation is as fast as possible so that another viscous product can be discharged without mixing with the previous product over a period of, for example, at most ten minutes counted from the end of the previous product emptying to the beginning of the next product emptying. the

The method of the present invention comprises:

Control or design of flexible containers such that their dimensions and characteristics are well suited to emptying conditions;

conveying flexible containers from their storage location and/or transport container to their emptying location;

compressing the flexible container during its emptying to minimize material loss and avoid the risk of clogging the discharge hole;

软质容器的强度，不会在压力下被击穿； 

The strength of the soft container will not be broken down under pressure;

排空期间的压力和流速参数的数值； 

Values of pressure and flow rate parameters during emptying;

Transition time between two products of different viscosities;

and viscous products in order to facilitate contamination of the minimum number of components that subsequently need to be cleaned, if possible only disposable or replaceable components (e.g. flexible containers and/or their disposable liners and flexible connecting tubing, which needs to be replaced when changing from one viscous product to another).

According to another aspect of the present invention, the present invention relates to a kit for implementing the above-mentioned defined method, wherein the kit is characterized in that it comprises:

Viscous products, selected from products with a viscosity greater than or equal to 10Pa.s, the preferred viscosity range is between 10Pa.s and 200,000Pa.s;

~ i.e., silicone oils; silica gels; polysiloxane compositions (optionally in the form of aqueous emulsions) which can be crosslinked by polyaddition, polycondensation or dehydrocondensation (poly)reactions to form elastomers; containing reactive silicone groups organic polymers (known as MS polymers) and compositions injected into solvent or aqueous media which may contain acrylic polymers and which crosslink by drying to form elastomers;

~ mechanically robust flexible containers which are leak-free for viscous products and are preferably equipped with handles for lifting and/or hanging;

~ an emptying device comprising at least one pressure element and/or at least one pressure fluid;

~ optionally at least one component for packaging the viscous product in a suitable packaging;

~ optionally a mechanical device for moving the viscous product to increase its flow rate, said mechanical device is preferably selected from a pump or a (twin) screw;

~ and optional storage device. the

According to an advantageous feature of the present invention, preferably the wall of flexible container comprises:

at least one element providing mechanical strength comprising one or more layers of sheet material, preferably fabric, which may be identical or different from each other;

and optionally at least one sealing element formed from (i) at least one polymeric film, preferably in the form of a coating, and/or (2i) at least one leak-proof liner bag, the liner bag Consisting of one or more layers of material selected from synthetic polymer films (especially polyolefins, more preferably polyethylenes, polypropylenes, polyesters or polyamides) or metals (especially aluminium), the inner The liner pocket is at least partially fixed to the wall element providing mechanical robustness, and even more preferably at least partially adhesively bonded and/or sewn to said element. the

Especially preferably, the flexible container has a mechanically strong and leak-free wall based on a fabric with a weight in the uncoated state of between 100 and 300 g/m ² and a liner bag thickness in the range between 5 and 500 μm.

In fact, it may be a polypropylene fabric with a density of 150 to 300 g/ ^m2 for making 1000 liter containers.

The liner bag is, for example, adhesively bonded or sewn to the interior or exterior of a mechanically strong wall. The thickness of the thin liner bag is between 10 and 250 μm. It should be noted that the fabric thickness of the walls and liner bags depends on the desired mechanical strength and physicochemical protection. the

Optionally, the flexible container is provided with one or more vent nozzles, which may be of the same or different configuration as the flexible container. the

Of course, the respective spouts optionally provided on the flexible container may be used to empty or fill said container and may further be used to close the opening eg using a plug or a knotted band. The plug may consist of welded and/or glued joints. the

Each optional spout may further constitute an element connecting the flexible container to a downstream storage location for mechanical collection or packaging. the

According to a preferred embodiment of the invention, the flexible container has at least one large or so-called full opening for feeding. Large openings can be closed by welding and/or knotting and/or glued joints. In contrast to the aforementioned openings and/or discharge nozzles, preferably only such large openings are used for feeding. the

According to a first embodiment, the emptying device comprises on the one hand at least one pressure element with at least one piston, and on the other hand at least one emptying vessel for receiving the flexible container to be emptied or optionally only Its inner bag, the emptying vessel is designed as a female part capable of interacting with and guiding the male part constituted by the piston of the pressure element during its movement, especially in conjunction with soft containers or optionally Only the forward direction of the pressurization direction of its liner bag is consistent. the

In the first embodiment, even more preferred are the following emptying devices:

The piston of the pressure element has a (preferably circular) head connected to a rod for interaction with a fixed jack mounted on a fixed structure, the head being used to press into emptying vessels to compress flexible containers;

and an emptying vessel comprising at least one discharge opening for viscous products and preferably equipped with moving means (preferably rollers), preferably consisting of a hollow cylinder for receiving a soft container and in which a piston head can slide, the head preferably Is circular and its diameter can preferably be close enough to the inner diameter of the container so that for viscous products leak-free can be ensured, advantageously by means of O-ring seals preferably mounted on the bezel of the piston head and the periphery of the inner wall of the container. the

According to a variant of the first embodiment, the emptying vessel is designed so that it can be closed (tightly) and the piston can be moved under the action of the pressurized fluid. the

Within the scope of variant embodiments, according to the invention, the emptying device advantageously comprises an expandable jack arranged between the piston and the reversible closure lid of the container and connected to a supply of pressurized fluid for expanding it, then Move the piston to expel the viscous product from the container. the

Preferably, the pressurized fluid supply device comprises at least one pressurized fluid accumulator, means for conveying pressurized fluid and a conduit equipped with these means and connecting the pressurized fluid accumulator with the expandable jack. the

In practice, the pressurized fluid is selected, for example, from incompressible fluids, preferably water or oil, or from compressible fluids, preferably air. the

According to a second embodiment, the emptying device comprises at least one emptying vessel for receiving the flexible container to be emptied or merely its inner bag, which can be compressed by means of a pressurized fluid to expel the viscous liquid from the emptying vessel. product. the

In variants of the first embodiment and the second embodiment, part of the pressure exerted on the soft container comes from (indirectly or directly) any liquid or gaseous fluid composed of pressure fluid, preferably liquid, with a pressure of less than 50 Pa.s . This takes place by designing the evacuation vessel like an autoclave with at least one openable and closable outlet for introducing and/or releasing pressurized fluid. Of course, the autoclave-type evacuation vessel also includes at least one opening for the viscous product. the

According to a third embodiment, the emptying device comprises on the one hand a pressure element having at least one assembly comprising at least one roller element and at least one counter-roller element, preferably at least two substantially parallel and rotating about their respective axes The moving rollers, on the other hand, include means for suspending the soft container so as to provide an opening at the bottom; the assembly is designed so that the two rollers can move down and crush the soft container moving between them The container, roller is optionally driven in rotation by at least one motor, this mechanization may optionally be combined with or replaced by the mechanized upward traction of the preferably suspended flexible container. the

The emptying device of the third embodiment is even more preferably as follows:

the flexible container is equipped in its upper part with at least one clamping handle for suspending it and in its lower part at least one sticky product discharge outlet, optionally equipped with a spout, the container advantageously has an integral pear with a flared part forming the base shape outline;

The two rollers can be mechanized or not, and the two rollers are arranged on either side of the soft container so as to squeeze the soft container when it moves down. The roller assembly is equipped with a wheelbase adjustment system to suit the squeeze level of soft containers. the

In the first and second embodiments, according to which the container is emptied to form a device according to the invention, the flexible container and optionally its detachable inner bag are preferably dimensioned such that during pressurization The container remains inflated or partially inflated. Only the flexible container and/or its inner bag are thus kept under tension, which limits the risk of undesired folding which could lead to blockage of the outlet opening. Thus, it is used that the emptying vessel has substantially the same shape as the flexible container and/or liner bag, preferably the size of the flexible container and/or liner bag is 2% to 15% smaller than the size of the emptying vessel. the

In a third embodiment, the counter roll is optionally a plate attached to one or more rolls. Without any limitation, the plate can also be replaced by a flat support, which can be, for example, a vertical wall or a horizontal plane (floor). the

When a plate and two rollers are used, it is expedient that one roller is mounted on one side of the plate and the other roller is mounted on the other side of the plate, with the flexible container inserted between one roller and the plate. Such an arrangement balances the forces. the

According to another advantageous feature of the invention, the flexible container and/or its liner has no surface irregularities (such as vertical seams or vertical protrusions or bumps) in a substantially vertical direction over at least part of its height, so that The contact of the flexible container and/or its liner with the inner surface of the emptying vessel creates a substantially toroidal junction area, thereby forming a barrier to the viscous product. This prevents the viscous product from moving between the inner surface of the emptying vessel and the upper wall of the flexible container and/or liner bag during emptying, so that the interior of the emptying vessel is substantially free from contamination with viscous product. the

Brief description of the drawings

The method and the evacuation of the present invention will be more clearly understood from the following description, which provides non-limiting examples, namely two preferred embodiments of said evacuation kit, as well as certain variations, with reference to the accompanying drawings. Kit, which:

Fig. 1 shows a schematic diagram of an embodiment of an emptying kit according to the invention. the

FIG. 2 shows a schematic diagram of a variant embodiment of the embodiment of FIG. 1 . the

Figure 3 shows a schematic view of another embodiment of the emptying kit according to the invention. the

Detailed ways

FIG. 1 shows a kit for discharging viscous products (silicone putty with a viscosity > 50 Pa.s, for example 3000 Pa.s) comprising a device 1 for discharging a viscous product 2 contained in a flexible container 3 . the

The emptying device 1 comprises a structure or frame 4 to which is fixed a pressure element 5 comprising a piston 5.1 and a jack 5.2. The latter is used to drive the piston 5.1. The latter's largest outer diameter is slightly smaller (0.1% to 2.5% smaller) than the smallest inner diameter of the vessel. the

The emptying vessel 6 , equipped with rollers 7 , constitutes a further element of the emptying device 1 . The emptying vessel 6 is open and has the general shape of a flat-bottomed cylinder with an outlet duct 8 for the viscous product 2 in its lower part. Resistant to pressure and fitted with rollers 7 for easy movement. the

The soft container 3 is accommodated inside the emptying vessel 6 . The flexible container 3 forms a discharge opening 9 in its lower part, which faces the outlet duct 8 of the emptying vessel 6 . The discharge opening 9 is formed after the flexible container 3 has been transported from its storage and/or transport position to the emptying position defined by the emptying vessel 6, just before pressurization by the pressure element -5, 5.1, 5.2. the

Flexible container 3 has shell 10, and it comprises:

Any multilayer mechanically strong wall (for example made of polypropylene fabric) optionally sewn and/or adhesively bonded to a thin polyethylene bag of inner fabric walls;

● Or just a liner bag drawn from the inside of the soft container 3 . shell The structural details will be described in more detail in Figure 2 below.

The flexible container 3 should be designed in such a way that a minimum loss of material is ensured, in particular less than 2%. the

The flexible container 3 is preferably a large bag-type container with a cylindrical bottom, without vertical seams, and its diameter is slightly smaller than the diameter of the emptying vessel 6, so that the expansion experienced by the flexible container 3 when it is pressurized makes the flexible container The walls of 3 are kept in tension during the emptying process. In the presently mentioned case, the wall consists of a polypropylene fabric with an adhesively bonded inner layer formed by an adhesively bonded thin polyethylene liner. This type of mechanically strong wall protects during transport and storage, while its inner layer (liner) ensures leak-free during emptying, so that when it is pressurized, the viscous product2 only emerges from the soft The outlet 9 of the housing 10 of the mass container 3 flows out. the

Leakage is achieved between the piston 5.1 (pressure element) and the inner surface of the emptying vessel 6 by providing an O-ring seal 11 which forms a barrier against the movement of the viscous product 2 above the piston 5.1. The O-ring seal 11 has, for example, a cross-section with a diameter of 50 mm ± 20 mm and a length equal to the inner circumference of the emptying vessel 6, so that by adjusting the compressibility of the material forming the O-ring seal 11, preferably an elastic material, The continuity of the O-ring seal 11 can be ensured. It is arranged in the space defined by the annular region of the inner surface of the cylindrical emptying vessel 6 and the chamfer (45° chamfer) of the piston 5.1. The chamfer is used to exert an oblique force on the elastic O-ring seal 11 so that it presses perfectly against the inner surface of the emptying vessel 6 to provide excellent leak-free. the

The flexible container 3 is transported, for example, from its storage location to the emptying location by means of a forklift or a mobile crane. For this operation, the flexible container 3 preferably has, for example, one or more solid handles, by means of which the conveying device lifts it. the

According to a variant embodiment, the outlet duct 8 can be arranged on the piston 5.1. The outlet conduit 8 allows the viscous product 2 to escape from the emptying vessel 6 due to the pressure difference between the internal and external pressure of the flexible container 3 . The diameter of the outlet duct 8 is, for example, 76 mm. the

The outlet conduit 8 may comprise a hose capable of conveying the viscous product 2 to a device arranged downstream for packaging, storage or mechanical collection. This hose is advantageously removable so that it can be replaced for each product to be discharged. the

According to other variants, several outlets may be provided to distribute the viscous product 2 to several devices for packaging, storage or mechanical collection. the

According to the flow rate absorbed by the receiver downstream of the outlet conduit/hose 8 (such as a packaging machine (such as a cartridge), a collection pump, a mixing screw, a container at a specific pressure or at atmospheric pressure), and according to the flow rate passing downstream The receiver element is sized to allow some pressure at outlet 8. This pressure is less than or equal to the pressure that the viscous product 2 is subjected to in the soft container 3 . the

Due to the presence of the pressure element 5 (piston 5.1 and jack 5.2) it is possible to exert a pressure on the soft container 3 which is rather high (e.g. up to 6.5 bar, also No technical difficulties). In particular by using the empirical Poiseuille's law to a first approximation, the viscous product 2 contained in the flexible container 3 is thus subjected to a pressure P=(8·Q·N·L)/π·R ⁴ , where P= Relative pressure in Pascals relative to atmospheric pressure, Q = desired volumetric flow rate in m ³ /s, N = kinetic viscosity of the product in Pa.s, L = equal length of outlet conduit 8 in m , and R = the radius of the outlet conduit 8 .

According to the method according to the invention, the deformation of the flexible container 3 during emptying is controlled so that the flexible container 3 does not tear and can be folded optimally without blocking the discharge opening 9 . the

The volumetric flow rate is determined as the mass and density of the viscous product 2 flowing through in a given time. the

For those skilled in the art, there are multiple ways to form the discharge port 9:

• A cutting tool (eg a blade) is introduced through the outlet conduit 8 to pierce the soft container 3 . Piercing is advantageous when the flexible container 3 is not yet pressurized, and necessary measures should be taken to determine the location of the perforation. the

use of a discharge spout integrally formed with the soft container 3 (the spout may be the one previously used for the feed) which can be opened by cutting its closed end, for example in this case the spout can Advantageously threaded into the outlet conduit 8, the connection of this nozzle to the outlet conduit 8 is routine within the purview of a person skilled in the art. the

Open the stopper provided on the soft container 3, and in terms of connecting the outlet nozzle to the neck that was opened by removing the stopper, it is also possible to directly connect the outlet conduit 8 to the neck that was opened by removing the stopper . the

Figure 2 shows a device similar to that of Figure 1 above, in which the pressurized fluid used to achieve pressurization is contained in a soft expandable jack 12, which is arranged in an emptying vessel 60, between the diaphragm and cover 13 forming the piston 5.10 between. The latter can be reversibly secured to the top of the emptying vessel 60 by using reversible fastening means indicated by reference numeral 14 in FIG. 2 . The means 14 are, for example, bolts. the

The soft expansion jack 12 may for example be of the type commercially available from PRONAL. the

The emptying vessel 60 can be, for example, a stainless steel vessel with a capacity of, for example, 1000 liters. the

On the opposite side of the soft expansion jack 12, opposite the diaphragm/piston 5.10, the emptying vessel 60 contains in its lower part the soft container 30 containing the viscous product 2. The bottom of the soft container 30 has a discharge port 90 . In the same way as in the embodiment of FIG. 1 , a discharge port 90 is formed on the soft container 30 just before pressurization by means of the soft expansion jack 12 . the

An elastic seal 110 is inserted between the diaphragm/piston 5.10. Elastomeric seal 110 is an O-ring seal that performs the same function as the component numbered 11 in FIG. 1 as described above. Thereby there is no leakage on either side of the piston plate 5.10 for the viscous product 2 contained in the soft container 30 . the

The soft expansion jack 12 is connected to a pressurized fluid reservoir 15 via a pipe 16 equipped with a transfer device 17 . the

According to the invention, the pressurized fluid may be an incompressible fluid, ie a liquid such as water or oil, or a compressible fluid such as air. the

In the case of an incompressible fluid such as water or oil, means 17 are used to transfer the fluid in the reservoir 15 to the soft inflatable jack 12 via the tube 16, the means 17 consisting for example of a suitable pump. When the pressurized fluid is formed by compressed air, said delivery means 17 corresponds to a compressed air line with all known suitable components (valves, switches, etc.). the

The pressure fluid is preferably an incompressible fluid such as oil or water. A cushion filled with a compressible gas, such as air, is then preferably provided within the soft inflatable jack 12 . Such a cushion acts as a buffer capable of smoothing out the flow rate of the fluid and limiting or even eliminating the lag time for the flow of the viscous product 2 to the discharge opening 90 of the emptying vessel 60 . the

The advantages of using soft inflatable jacks 12 are particularly economical and easy to use. Also the expandable jack 12 does not add any additional hindrance to emptying the vessel 60 . It is therefore easy to imagine using a dual system to allow operation also during waiting times, which would significantly increase productivity. the

Another advantage offered by the variant embodiment of Fig. 2 is that such a device can be easily and quickly assembled and disassembled. the

According to an optional but beneficial feature of the apparatus of FIG. 2 , the lid 13 or even the emptying vessel 60 is equipped with a safety valve for releasing excess pressure air. the

In the same way as the apparatus of FIG. 1 , the apparatus of FIG. 2 is for example arranged upstream of a device for packaging viscous products 2 , for example in cartridges. the

The operation of the emptying device of Fig. 2 is very simple. The soft jack 12 is expanded by means of the transfer device 17 , which is related to the pressure required to empty the viscous product 2 from the soft container 30 . the

FIG. 3 shows another embodiment of the emptying kit according to the invention. The kit comprises an emptying device 20 and an overall pear-shaped flexible container 21 . the

The emptying device 20 consists of at least one or two rollers 22, 23 connected together by a system of rods 24 so that the distance between the axes of the rollers 22 and 23 can vary. the

The flexible container 21 comprises a mechanically strong wall element 25 and a liner bag 26 adhesively bonded to the inner surface of the wall element 25 . The soft container 21 is also equipped in its lower part with an outlet conduit 27 connected to a mechanical collection device 28 consisting of a pump. In contrast, the flexible container 21 has a lifting or hanging handle 29 on the upper part. the

The solid line in Figure 3 represents the condition before pressurization of the evacuation kit, while the dotted line represents the condition of the evacuation kit at the beginning of pressurization. the

The rollers 22, 23 move towards each other so as to squeeze the upper part of the soft container 21, as represented by the horizontal arrows. The rollers 22 and 23 approaching each other in this way then start to descend as indicated by the vertical arrows. The soft container 21 is thus gradually squeezed from its upper end to its lower end. The viscous product 2 contained in the container 21 is subjected to a pressure which depends on the strength of the container and flows through the outlet conduit 27 . The viscous product 2 is removed by using a pump 28 . the

It has been found that pressurization by lowering the rollers 22, 23 has the effect of keeping the container 21 in an inflated state. the

In practice, the handle 29 of the flexible container 21 is passed between the rollers 22, 23 and the handle 29 is lifted, for example with a forklift. The rollers 22, 23 are tensioned on either side of the upper part of the soft container 21 by means of a rod 24 system for controlling the inner axle distance. The rollers 22 , 23 descend under their own weight along the soft container 21 , pushing the viscous product 2 down until a balance is established between the weight of the rollers 22 , 23 and the reaction force of the compressed soft container 21 . the

When the discharge opening 27 is opened, the viscous product 2 (eg silicone putty) flows and the rollers 22, 23 descend, gradually squeezing all the contents of the flexible container 21. the

In this embodiment, for example operating at a flow rate of about 35 liters/minute, the outlet has a diameter of 33 cm, and both steel rollers are 10 cm in diameter and weigh 40 kg (for good adhesion to the soft container 21, steel Roller coated with rubber). The liner bag of the flexible container 21 is secured to the outer polypropylene fabric wall element 25 by adhesive bonding or sewing. the

Mechanization of the system is provided, either by pulling the flexible container 21 over tensioned rollers 22, 23 and/or by rotating the rollers 22, 23 themselves mechanized. Such mechanization can only increase the outlet flow rate of the viscous product 2 . the

Using the pump 28 enables to significantly increase the outlet flow rate (x10) of the viscous product 2 . the

The description of the first embodiment is supplemented by the following examples. the

Example 1

Examples of Silicone Putties Cartridged from Pressurized Soft Shells

The equipment used is represented by Figure 1 and described above. More precisely, this example uses a press with vessels for the discharge of viscous products contained in vessels with diameters up to 1240 mm, said vessels being subjected to operating pressure. the

The press has a steel structure that houses the jacks in their vertical position. The 20 cm diameter jack is hydraulic and operates at a hydraulic pressure of 0 to 250 bar delivered by the hydraulic unit. The pressure piston driven by the jack has a diameter of 1220mm±3mm. The control station is able to control the raising and lowering of the jack. the

The vessel has an internal diameter of 1235mm±10mm and a depth of 1000mm, is made of stainless steel and can withstand pressures in excess of 7 bar. the

The product discharge port is located on the bottom side of the vessel. the

A pressure-resistant hose connects the outlet of the vessel to the doser of the cartridge filling machine. The hose has a length of 1 m and an inner diameter of 76 mm. the

The big bags tested were circular fabric big bags with a circumference of 3640 mm, ie much smaller than the inner circumference of the vessel. The big bag has a flat cylindrical bottom and an open polyethylene bag with a thickness of 100 μm is bonded to the big bag not by gluing but by sewing it at the intersection area between the cylinder (big bag body) and the upper disc closing the upper part of the big bag . The big bag has a fill spout on the upper disc of the big bag, 5 cm from the edge (by using this spout as a discharge spout, this spout can be used to achieve a "clean" emptying, thus protecting the outlet on the platen from contaminated). The upper disc and spout are made of polyethylene coated fabric which is leaktight to the product it contains. At the start of emptying, the flexible container contained 680 kg of product. the

The product for testing contained in the flexible container is an oxime silicone putty. the

The vessel is on wheels so it can be moved on a flat floor. the

Use a forklift to put the soft container into the vessel. A polyethylene film is placed over the flexible containers, followed by a rubber seal between the containers. the

Pierce the flexible container through the discharge opening: a measured incision of approximately 10 cm. the

Connect the hose to the outlet and pressurize by lowering the jack. the

The doser of the barrel-loading machine is quickly filled (time less than 1 second, close to 0.5 seconds)

Cartridge loaders typically operate at 30 strokes per minute. the

The material loss at the bottom of the flexible container was 8.6 liters, less than 1.26%. the

The majority of the vessel was clean: only the part close to the discharge was contaminated, ie within a radius of approximately 25 cm. the

Example 2

Example of Expelling Silicone Putty from a Pressurized Soft Shell

The equipment used is represented by Figure 1 and described above. More precisely, this example uses a press with vessels for the discharge of viscous products contained in vessels with diameters up to 1240 mm, said vessels being subjected to operating pressure. the

The press has a steel structure that houses the jacks in their vertical position. The 20 cm diameter jack is hydraulic and operates at a hydraulic pressure of 0 to 250 bar delivered by the hydraulic unit. The pressure piston driven by the jack has a diameter of 1220mm±3mm. The control station is able to control the raising and lowering of the jack. the

The inner diameter of the vessel is 1235mm±10mm, the depth is 1000mm, it is made of stainless steel and can withstand a pressure of more than 7 bar. the

The product discharge port is located on the side of the bottom of the vessel approximately 15 cm from the edge of the plate. the

Pressure-resistant steel pipes are used for the transfer from the drain port of the plate to the drain receiver. The tube is secured to the outlet of the platen by a leak-free connector. The tube has a total length of 2.5 m and an inner diameter of 76 mm. the

The big bag tested was a circular fabric big bag with compensating tape, 1100mm high and 3640mm circumference, which is much smaller than the inner circumference of the container. The big bag has a flat cylindrical bottom, and the open polyethylene bag with a thickness of 100 μm is joined to the big bag not by gluing but by sewing it at the intersection area between the cylinder (big bag body) and the upper disc closing the upper part of the big bag . The big bag has a filling spout located on the upper disc of the big bag, 5 cm from the edge. The upper disc and spout are made of polyethylene coated fabric which is leak free for the product contained. The flexible container contained 680 kg of product at the start of emptying. the

The vessel has wheels so it can be moved. the

The product for testing contained in the flexible container was an acetoxy based silicone putty. the

The flow rate at the outlet of the pipe is greater than 70 liters/minute and mainly varies around 120 liters/minute, with a maximum flow rate of 145 liters/minute, at which time the oil pressure in the jack is 220 bar (which corresponds to about 5.7 bar in the vessel ). the

The presence of the filter in the pipe also limits the flow rate, so the flow rate may be higher without the filter. the

The mass of the flexible container after emptying is 12kg. The mass of an empty flexible container is 2kg. Therefore, the material loss is 10kg, or 1.47%. the

Example 3

Examples of Silicone Putties Cartridged from Pressurized Soft Shells

The equipment used is represented by Figure 1 and described above. More precisely, this embodiment uses a vessel press with strong vessels, capable of withstanding working pressure, with a diameter of 1240 mm. the

The press has a steel structure that houses the jacks in their vertical position. The 20 cm diameter jack is hydraulic and operates at a hydraulic pressure of 0 to 250 bar delivered by the hydraulic unit. The pressure piston driven by the jack has a diameter of 1220mm±3mm. The control station is able to control the raising and lowering of the jack. the

The inner diameter of the vessel is 1235mm ± 10mm, the depth is 1000mm, it is made of stainless steel and can withstand a pressure of more than 10 bar. the

The product discharge port is located on the bottom side of the vessel. the

A pressure-resistant hose connects the outlet of the vessel to the doser of the cartridge filling machine. The hose is 1m long and has an inner diameter of 76mm. the

The big bag tested was a circular fabric big bag with a circumference of 3640 mm, which is much smaller than the inner circumference of the vessel. The big bag has a flat cylindrical bottom and the open polyethylene bag with a thickness of 100 μm is joined to the big bag not by gluing but by sewing it at the intersection between the cylinder (big bag body) and the upper disc closing the upper part of the big bag area. The big bag has a fill spout serving as a discharge spout, located on the upper disc of the big bag, 5 cm from the edge, for emptying through the top through an outlet in the platen. The upper disc and spout are made of polyethylene coated fabric which is leak-proof to the product it contains. the

The product for testing contained in the flexible container is an oxime silicone putty. the

Claims (28)

1. an emptying accommodates the method more than or equal to the sack type flexible container (3,30,21) of 250 liters of capacity of having of viscous product, it is characterized in that:

Viscous product (2) is selected from the product that viscosity is at least 50Pa.s, i.e. silicone oil; Silica gel; Can be cross-linked to form elastomeric constituent polyorganosiloxane composition by addition polymerization, polycondensation or dehydrogenation polycondensation reaction; The organic polymer that comprises the active organosilicon group; Or inject comprising acrylic polymer and can being cross-linked to form elastomer compositions of solvent or aqueous medium by drying;

This method comprises:

-use has the sack type flexible container (3,30,21) more than or equal to 250 liters of capacity;

-guarantee that at least one discharge orifice (9) makes viscous product (2) flow out flexible container (3,30,21);

-by means of pressure device at flexible container (3,30,21) exert pressure at least one localized area, pressure device is made up of at least one pressure element (5,22,23) and/or pressure fluid, so that on the one hand with flexible container (3,30,21) remain on expansion or demi-inflation state, quicken viscous product (2) on the other hand and flow;

-decompression when emptying finishes.

2. the method for claim 1 is characterized in that, the wall mechanically robust of flexible container (3,30,21) and to the no leakage loss of viscous product (2), and it comprises:

At least one wall elements (25), it provides mechanical strength and comprises one deck or above sheet material, and these sheet materials are same to each other or different to each other;

With at least one packing element, the sealing element is formed by following material: (i) one deck is the polymer film of coating form at least, and/or (2i) at least one no leakage loss liner bag (26), this liner bag is by one deck or above be selected from synthetic polymer membranes or the metallo-material is formed, and this liner bag (26) is fixed on the wall elements (25) that mechanical strength is provided at least.

3. method as claimed in claim 1 or 2 is characterized in that, the discharge orifice (9) of flexible container (3,30,21) is to obtain like this:

-obtain by the wall that cuts flexible container (3,30,21);

-or be installed to one or obtain with the stopper in the upper shed or capping by removing, and under these circumstances, described opening can be equipped with the mouth of pipe in order to viscous product (2) is discharged outside flexible container (3,30, the 21) wall;

-or be provided in the band that is used for closing any opening on the flexible container (3,30,21) and obtain by removing.

4. the method for claim 1, it is characterized in that, used emptying equipment comprises that on the one hand at least one has at least one piston (5.1,5.10) the pressure element as pressure device (5), comprise at least one emptying vessel (6 on the other hand, 60), it is used to hold the flexible container (3 that will be drained, 30) its liner bag or only, emptying vessel (6,60) are designed to female part, and this female part can be on the piston edge and flexible container (3 of pressure element (5), when 30) or only the working direction of the compression aspect unanimity of its liner bag moves and the piston mutual action of pressure element (, 5) and the piston of pressure element (5) played guiding function.

5. method as claimed in claim 4 is characterized in that, emptying vessel (60) be designed to can closure and piston (5.10) can under the effect of pressure fluid, move so that viscous product (2) is discharged from emptying vessel (60).

6. method as claimed in claim 5, it is characterized in that, use is contained in the pressure fluid in the expandable jack, this jack is arranged between the reversible closing lid of piston (5.10) and emptying vessel (60) and connects the pressure fluid feedway and makes its expansion, follow mobile piston (5.10), so that viscous product (2) is discharged from emptying vessel (60).

7. the method for claim 1, it is characterized in that, employed emptying equipment comprises the emptying vessel (60) that at least one can pressurize, it is used to hold the flexible container (30) for the treatment of emptying or its liner bag only, wherein emptying vessel (60) by the pressure fluid pressurization in case from emptying vessel (60) discharge viscous product (2).

8. the method for claim 1 is characterized in that, used emptying equipment comprises

(i) at least one pressure element (22,23) as pressure device, this pressure element has at least one group of assembly, this assembly comprise at least one roller element (22) and at least one reverse rollers element (23) and

Comprise that (ii) the device (29) that is used to hang flexible container (21) is so that be provided with discharge orifice in the bottom;

This emptying equipment is designed to that two roller elements (22,23) can be moved down and roll extrusion simultaneously and be compressed in the flexible container that moves between two roller elements (22,23), and two roller elements (22,23) are by at least one motor rotation driving.

9. method as claimed in claim 8 is characterized in that, this combines the mechanical device that two roller elements (22,23) move down and the mechanization of the flexible container of the suspension draw gear that makes progress.

10. the method for claim 1 is characterized in that, used emptying equipment comprises

(i) at least one pressure element (22,23) as pressure device, this pressure element has at least one group of assembly, this assembly comprise at least one roller element (22) and at least one reverse rollers element (23) and

Comprise that (ii) the device (29) that is used to hang flexible container (21) is so that be provided with discharge orifice in the bottom;

The mechanization that this emptying equipment is designed to have the flexible container of the suspension draw gear that makes progress.

11., it is characterized in that described two roller elements (22,23) are substantially parallel and can rotate mobile around its axle separately as claim 8 or 10 described methods.

12. method as claimed in claim 2, it is characterized in that, from flexible container (3,30,21) in or the viscous product (2) of only being discharged in its liner bag (26), be supplied at least one to be used for packing the assembly of described viscous product (2) more than or equal to the suitable flow velocity of package component consumption with suitable manner of packing with supply.

13. method as claimed in claim 2, it is characterized in that, from flexible container (3,30,21) viscous product (2) of discharging or only from its liner bag (26), be supplied to the mechanical device that is used to store the device of viscous product and/or increases its flow velocity in order to mobile viscous product (2), described mechanical device is selected from pump or twin screw.

14. be used to implement the external member of method according to claim 1, it is characterized in that it comprises:

-viscous product (2), be selected from the product of viscosity, i.e. silicone oil, silica gel more than or equal to 50Pa.s, can be cross-linked to form elastomeric constituent polyorganosiloxane composition by addition polymerization, polycondensation or dehydrogenation polycondensation reaction, or comprise the organic polymer of active organosilicon group;

-mechanically robust have a sack type flexible container (3,30,21) more than or equal to 250 liters of capacity, it is equipped with at least one discharge orifice (9) for the no leakage loss of viscous product (2);

-emptying equipment, it comprises at least one pressure element as pressure device (5,22,23) and/or pressure fluid;

-at least one assembly with suitable manner of packing packing viscous product (2);

-being used for mobile viscous product (2) to increase the mechanical device of its flow velocity, described mechanical device is selected from: pump or twin screw;

-and memory storage.

15. external member as claimed in claim 14 is characterized in that, the wall of flexible container (3,30,21) comprising:

At least one provides the wall elements (25) of mechanical strength, and it comprises one or above mutually the same or different sheet material;

With at least one packing element, the sealing element is formed by following material: (i) one deck is the polymer film of coating form at least, and/or (2i) at least one no leakage loss liner bag (26), this liner bag is by one deck or above be selected from synthetic polymer membranes or the metallo-material is formed, this liner bag (26) is fixed on the wall elements (25) that mechanical strength is provided in use at least, and liner bag to small part glue bond is closed and/or is sewn onto on the described wall elements.

16. external member as claimed in claim 14 is characterized in that, flexible container (3,30,21) has the wall elements (25) of the mechanically robust made based on fabric and no leakage loss, the weight under its uncoated state 100 to 300g/m ²Between, and wherein the thickness of liner bag (26) between 5 to 500 μ m.

17. external member as claimed in claim 14, it is characterized in that, emptying equipment comprises that on the one hand at least one has at least one piston (5.1,5.10) the pressure element as pressure device (5), also comprise at least one emptying vessel (6 on the other hand, 60), these emptying vessel are used to hold the flexible container (3 for the treatment of emptying, 30), and be designed to female part, on the male part edge and flexible container (3 that the piston (5.1,5.10) by pressure element (5) constitutes, when 30) or only the cooresponding working direction of compression aspect of its liner bag moved, female part was applicable to male part.

18. external member as claimed in claim 17 is characterized in that:

Pressure element (5) has the piston (5.1) that is connected with bar, bar is used for and is installed in jack (5.2) mutual action on the fixed sturcture (4) so that driven plunger (5.1) is carried out motion of translation repeatedly, and described piston (5.1) is used to be pressed into emptying vessel (6) so that compression flexible container (3);

With emptying vessel (6), it comprises at least one discharge orifice (90) and is equipped with mobile device, it is made up of hollow circuit cylinder, this hollow circuit cylinder is used to hold flexible container (3) and piston (5.1) can slide within it, piston (5.1) be cylindrical and its diameter enough near the internal diameter of emptying vessel (6), by means of the O-ring packing (11) that is installed on piston (5.1) chamfered edge and emptying vessel (6) inner peripheral wall, guarantee for the no leakage loss of viscous product (2).

19. external member as claimed in claim 17 is characterized in that, emptying vessel (60) are designed to be able to closure and piston (5.10) can move under the effect of pressure fluid.

20. external member as claimed in claim 14, it is characterized in that, emptying equipment comprises at least one emptying vessel (60), it is used to hold the flexible container (30) that will be drained or its liner bag (26) only, by pressure fluid to emptying vessel (60) pressurization in case from emptying vessel (60) discharge viscous product (2).

21. external member as claimed in claim 19, it is characterized in that, emptying equipment comprises inflatable jack (12), this jack places between the reversible closing lid (13) of piston (5.10) and emptying vessel (60) and is connected to the pressure fluid feedway and makes its expansion, follow mobile piston (5.10), thereby viscous product (2) is discharged from emptying vessel (60).

22. external member as claimed in claim 21, it is characterized in that, the pressure fluid feeding mechanism comprises at least one pressure fluid memory device (15), is used for the device (17) and the conduit (16) of transmission pressure fluid, and conduit (16) is connected with these devices (17) that are used for the transmission pressure fluid and pressure fluid memory device (15) and inflatable jack (12) are coupled together.

23. external member as claimed in claim 22 is characterized in that, pressure fluid is selected from the incompressible fluid that comprises water or oil, or is selected from compressible fluid.

24. external member as claimed in claim 14 is characterized in that emptying equipment comprises

(i) at least one is as the pressure element of pressure device, and this pressure element has at least one group of assembly, this assembly comprise at least one roller element (22) and at least one reverse rollers element (23) and

The handle (29) that (ii) is used to hang flexible container (21) is so that be provided with discharge orifice in the bottom;

Emptying equipment is designed to make two roller elements (22,23) to move down and roll extrusion simultaneously and be compressed in the flexible container (21) that moves between two roller elements (22,23), and these two roller elements (22,23) are by at least one motor rotation driving.

25. external member as claimed in claim 24 is characterized in that, this combines the mechanical device that two roller elements (22,23) move down and the mechanization of the flexible container of the suspension draw gear that makes progress.

26. external member as claimed in claim 14 is characterized in that emptying equipment comprises

(i) at least one is as the pressure element of pressure device, and this pressure element has at least one group of assembly, this assembly comprise at least one roller element (22) and at least one reverse rollers element (23) and

The handle (29) that (ii) is used to hang flexible container (21) is so that be provided with discharge orifice in the bottom;

The mechanization that this emptying equipment is designed to have the flexible container of the suspension draw gear that makes progress.

27. as claim 24 or 26 described external members, it is characterized in that, described two roller elements (22,23) substantially parallel and around its separately axle rotation move.

28. external member as claimed in claim 24 is characterized in that,

Flexible container (21) is equipped with the handle (29) with its suspension at an upper portion thereof, has at least one viscous product (2) discharge orifice (9) in the bottom, and is equipped with the mouth of pipe, and flexible container (21) has whole pyriform profile, and its outer part of opening forms substrate;

Two roller elements (22 of mechanization, 23) respectively be arranged in a side of flexible container (21) so that at two roller elements (22, extruding flexible container when 23) moving down, bar (24) system of wheelbase was so that adapt to the extruding level of flexible container (21) in described roller element (22,23) was equipped with and is used to adjust.

Images