MXPA97007828A - Drainage apparatus for voluminous bags and its - Google Patents

Abstract

The present invention relates to a draining apparatus for bulky bags with inner and outer bags, comprising a support device for the bulky bag and a device in the form of an open top container, arranged substantially centrally down support device, characterized in that the device in the form of a container is formed as a double tube device, comprising an inner tube, an outer tube arranged around it, with an outlet attached to the lower edge thereof, and a removable and lowered closing ring. to close the upper end of the ring groove formed of the two tubing

Description

DRAINING APPARATUS FOR VOLUMINOUS BAGS AND THEIR USE The present invention is directed to a draining apparatus for bulky bags with an inner and an outer bag, which is suitable for the dust-free emptying of bulky bags filled with bulk products capable of flowing , sensitive to humidity, toxic or aggressive. The present invention is further directed to a method for emptying bulky bags under the use of the emptying apparatus according to the present invention. Bulk products capable of flowing in large casks in the form of sacks are known for marketing. follows, called Bulky Bags. Bulky Bags for the reception of aggressive, toxic and / or otherwise sensitive bulk products, for example hygroscopic, are usually composed of an impermeable inner bag, also called an inner lining, and a mechanically stable outer bag. The inner bag is composed usually of a sufficiently thick sheet material of plastic or of a composite sheet, for example of a plastic sheet laminated with aluminum. The outer bag is generally composed of a natural or synthetic textile material, often a weave of defibrated sheet tapes. Bulky Bags with an inner and an outer bag present in general in the upper area a closed filling opening, which also serves for ventilation during emptying, in addition to carrying loops, to enable handling by means of lifting equipment. On the floor of the Bulky Bags are the discharge necks placed one on the other, which are closed by means of a union of lower and upper bags, which cover both bags in general. Additionally, the discharge collar of the inner bag is hermetically welded, usually below the lower bag choke. The discharged and / or welded discharge neck of the inner bag can be properly folded and disposed inside the discharge neck of the outer bag. of bulky bags are carried by means of lifting tools above the container to be filled and are emptied after the opening of the bag choke. In this way a dustless emptying is not possible. For the dust-free emptying of Bulky Bags have been given by known different draining apparatuses EP-A 0 637 552 teaches a dose palette for Bulky Bags, with which an open top container is disposed below the opening of a receiving vane for the bulky Bag, the side wall of the container has a device for opening and closing the container and the bottom side of the container is connected with a dosing device After putting the bulky bags on the receiving pallet, whereby the discharge neck arrives in the container, the bottlenecks can be opened through the side door in the container while the inner bag of the Voluminous Bag is composed of a little flexible material, for example a laminated composite sheet of aluminum, can not rule out disturbances in the output by the formation of bridges This is therefore a great disadvantage especially when it is not possible to make easy output side door emptying device due to the toxic or aggressive nature of the product A similar device shows GB-A 2 250 016 In addition to a receiving tray for receiving the discharge neck and the lower part of the Bulky Bag and of a door in this bucket for handling in the pouch flapping, this draining apparatus also contains a device for rolling to reduce or completely interrupt the flow of bulk products and re-knot the bag This device is also not suitable for the problem-free emptying of bulky bags, especially those with a loose inner bag and / or a welded inner bag, because it is not always possible to avoid disorders in the emptying by blockage of the discharge neck, but a contact of the filling material with the skin is not allowed, for reasons of work hygiene. Accordingly, it is the object of the present invention to provide a drainage device for bulky bags with an inner and an outer bag, through which they can be emptied reliably and without problems, without contacting the product. of filling. According to another object, the emptying apparatus should also be suitable for emptying bulky bags with a non-flexible inner bag, as they are found in case of use of dangerous products. The object is solved by the draining apparatus according to the present invention. According to this, a draining device for bulky bags with inner and outer bags was found, comprising a support device (3) for the Bulky Bag and an open-top container-shaped device, arranged essentially centrally below the device. of support (3), which is characterized by the fact that the device in The container shape is formed as a double tube device, comprising an inner tube (20), an outer tube (7) arranged around it, with an outlet (8) attached to the lower edge thereof, and a sealing ring Subible and lowered (9) to close the upper end of the ring groove formed of the two tubes. The secondary claims of the casting apparatus are directed to preferred embodiments of the present invention. The apparatus according to the present invention is suitable for the emptying without dust and safe of bulky bags filled with dangerous products. The apparatus is based on a double tube device, whose outlet formed preferably in the form of a funnel can be connected to the container to be filled by means of a flexible connected joint. The draining apparatus comprises a support device for the Bulky Bag, which is appropriately formed as a receiving basin mounted on a pedestal with a sufficiently large hole that is in the middle, for the realization of the bag discharge. of the Bulky Bag. The double-tube device is arranged essentially in the center below the receiving tray. A preferred apparatus also comprises a raising and lowering device acting on the double tube device, with which it can either be enlarged or the distance between the receiving tray and the double tube device be reduced. The upper end of the ring groove formed in both tubes is hermetically sealed with the removable and lowered closing ring of the double tube device. For emptying the bulky Bag it is placed on the receiving tray so that the bag outlet is directed through the opening. After the opening of the lower bag choke, the bag outlet of the unloading necks placed one on the other, of the inner and outer bags, is guided through the closing ring; the discharge collar of the inner bag is inserted after the corresponding deployment or rolled up in the inner tube, and the discharge neck of the outer bag is inserted into the slot formed in both tubes. The closing ring is then lowered to securely fix the outer bag and make the device airtight with respect to the medium. After the opening of the above-mentioned bag choke, the Voluminous Bag begins to be emptied. In addition, it is generally appropriate to lower the double tube device to stretch the discharge necks tucked into each other between the double tube device and the outlet cuvette.

A preferred embodiment of the draining apparatus, as it is especially well suited for emptying bulky bags with a non-flexible inner bag because a blockage of the outgoing flow is prevented by further stretching of the discharge neck of the inner bag, is characterized by the fact that has at least one gripping device (21) movable up and down inside the inner tube for fixing the bag outlet of the inner bag, which by means of a pulling device (11) that is manageable from the outside of the double tube device, can be dragged from the top downwards. In more detail, the present invention and preferred embodiments thereof, as well as their function, with the help of Figures 1 to 3 show Figure 1, a schematic side view of a preferred draining device according to the present invention, Figure 2, an enlarged detail representation according to the cut II in the Figure 1, in section, Figure 3, a representation according to Figure 2 in another operating position. All figures refer to a preferred embodiment, which also show, in addition to the double tube device according to the present invention, a device of grip and one of traction Figure 1 shows an apparatus for the emptying of a container known per se, in the form of a large barrel in the form of a sack, in what follows, called Voluminous Bag, in schematic side view. The Bulky Bag (1) presents an inner bag that receives the product capable of being poured, with an outer bag that is around it (not shown in Figure 1, with No. 18 or 17, respectively, in Figure 2 The discharge neck (13) of the Bulky Bag, which comprises the discharge necks placed one on the other of the inner bag and the outer bag, is closed and secured through a lower bag choke (14) and a upper bag choke (15) A part of the discharge neck of the inner bag optionally additionally welded, is properly folded inside, or at the upper end of the discharge neck of the outer bag By means of carrying loops (2) ) fixed to the Bulky Bag can be placed the Bulky Bag essentially centrally above the double tube device, by means of a crane or a transport vehicle on the ground, which for its part can already take over the function n of a support device for the bulky bag According to the preferred embodiment shown in Figure 1, the support device for the Bulky Bag consists of a reception device mounted on a supporting frame (4), in particular a receiving tray (3) with a centrally arranged opening through which the discharge neck (13) is driven. The double-tube device is centrally located below the opening of the receiving device, namely, at such a distance , that the discharging neck of the Bulky Bag extends inwards in the double tube device Properly the draining apparatus contains a raising and lowering device (5), by means of which the device can be raised and lowered twice tube, by means of a fastening element (6) fixed thereon The raising and lowering device (5) shown only schematically in Figure 1 can, as shown, act on the frame e support (4) or a separate fastening element, fixed to the receiving cuvette According to another embodiment, it is possible not to equip the double tube device with a raising and lowering device, but the receiving device for the Bulky Bag , preferably, however, the double-tube device is equipped with the raising and lowering device. The raising and lowering device can be optionally formed and activated mechanically, pneumatically or electrically. The raising and lowering device is particularly preferably based in a combination of a spring and a lifting device to be operated by hand, whereby the double tube device can be lowered by compressing the spring by means of the lifting device. Usually the double tube device rests on two clamping elements installed opposite each other on a raising and lowering device. Figure 1 shows the outer tube (7) of the double tube device itself, the outlet (8) attached to the lower edge, which in this case is formed in the form of a funnel, and a spout (12) joined together to the outlet funnel, through which the bulk product enters the container to be filled, directly or by a dosing device. Other component parts of the double-tube device are the closing ring (9), which is formed in Figure 1 as a closing tensioner (tC) by means of one or more up and down devices, which can be lowered on the double tube and re-raise, as well as one or more gripping devices (21) essentially of the present invention with their corresponding traction devices (11). In Figure 1 is the draining apparatus on a receiving platform (16). In the enlarged representation of Figure 2 the details of the double tube device as well as the grip and pull devices especially suitable for the emptying of bulky bags with inner bag not very flexible are recognized. The inner tube (20) is centrally inside the outer tube (7). An outlet funnel (8) is connected to the lower edge of the outer tube, in this one on the other hand a splice (12). The inner tube is fixed by means of one or more fastening element (35) to the lower part of the outer tube or to the upper part of the adjacent outlet; the ring groove formed between the inner and outer tubes must be essentially free for receiving the end of the bag sac from the outer bag The holding element (6), acting on the outer tube, which in turn leads to the up and down device not shown in Figure 2, is represented schematically The closing ring (9), which is represented in open position, is equipped on its underside with a seal ring (19) The device to raise and lower lower (10) for the closing ring - Figure 2 shows two of these devices arranged in front of each other - is formed in Figure 2 in the form of closing tensioner the closing lever (31) is grasped on one side to a fixation of lever with swivel joint (33), on the other hand l ü by means of a swivel joint to a closing flange (32), which in turn is adjusted, by means of a swivel joint, in a rotatable manner to the flange fixing (34) fixed to the closing ring. In Figures 2 and 3, two locking clamps are respectively shown, although three or four closing clamps arranged symmetrically around the outer tube may be appropriate.

The extension of the closing ring is measured in such a way that the slit formed between the inner and outer tube can be completely covered. In the preferred embodiment according to Figure 2, three grip devices (21) formed as staples are shown. In the preferred embodiment of Figures 2 and 3, the traction device (11) comprises a lower cable traction (22) or acting on the gripper (21), a traction to upper cable (23) that also acts on the gripping device, guiding elements (26) for the deviation of the traction to lower cable under the lower edge of the inner tube, guiding elements (27) for driving the upper traction through the wall of the inner tube, each one respective sleeve (24 and 25) for driving the lower and upper cable traction through the outer tube wall, each a respective seal (28 and 29) for the lower and upper cable traction as well as each one a respective handle (30) for each wire pull The wire pull sleeves (24 and 25) are arranged in the lower part of the outer pipe so that the upper rope pull running in the ring groove does not hamper the receiving the end portion of the discharge collar of the outer bag In the operating state shown in FIG. 2, the bag outlet encounters the upper bag throttle (15) inside the opening of the open closure ring. end portion of the discharge neck of the inner bag (18) is already shown for fixing through the gripping device, the end portion of the discharge neck of the outlet bag is, for better understanding of the representation, still outside of the closing ring In Figure 3 the "emptying" operating state is represented, wherein the end portion of the discharge collar of the outer bag is inside the ring slot and is fixed by means of the lowered closure plate The end portion of the discharge neck of the inner bag, whose edge is gripped by the gripping device, is in a stretched form inside the inner tube. The bag is appropriately fixed in the region of welding or reinforcement by means of the gripping device The stretching of the discharge necks is carried out, on the one hand through the pulling down of the gripping device, on the other side Through the lowering of the entire double-tube device In FIG. 3, the distance between the double-tube device and the receiving tray is enlarged in comparison with FIG. 2, by the lowered The grasping device (21) and the traction device (11) consisting of (22 to 30) shown in Figures 2 and 3 are a very efficient embodiment despite the use of simpler technical means, which can be handled simply but reliably Of course, it is it can form both the gripper device and the traction device in another way, however, the technical sophistication and hence the price of the casting apparatus is increased without gaining additional advantages. The emptying of a bulky bag with an inner bag that is not very flexible by using the emptying apparatus according to the present invention, includes the following steps. 1 Fixing the bulky bag by means of a supporting device. In principle, the supporting device is a suspension However, it is essentially more convenient to place the Bulky Bag on a support device by means of an opening disposed in the middle thereof in which the discharge neck is guided through the vehicle. The opening. 2 Open the lower choke of the bag and release the inner bag outlet Lead the unloading necks tucked into one another in the inner and outer bags through the open closing ring Remove a welding seam if the inner bag is welded . 3 Fix the gripping devices on the edge of the inner bag outlet and stretch the discharge neck by activating the traction device Insert the discharge collar of the outer bag into the slot 2 ring and fix the discharge collar of the outer bag by loosening the closing ring. 4 Open the upper bag throttle, which starts emptying and lowers the double tube device. If necessary, the traction device must be activated again to keep the discharge neck of the inner bag stretched. The apparatus and the method for emptying under the use of this apparatus according to the present invention, are characterized by high simplicity and safety of operation. Emptying of the Bulky Bag is carried out completely without dust and the service personnel does not come into contact with the filling product By means of the use of the gripper and traction devices, the inflexible discharge necks of inner bags must be pulled out safely and avoid disturbances during the emptying of bulky bags. Reference 1 Bulky Bag 2 Carrying loop 3 Support device (receiving cuvette) i «. »4 Support frame 5 Lifting and lowering device 6 Clamping element 7 External tube 8 Exit (exit funnel) 9 Locking ring 10 Closing tensioner 11 Traction device 12 Spout connection 13 Bag outlet 20 14 Lower strangulation bag 15 Bag upper bottle snake "16 Receptacle platform 17 Outer bag 18 Inner bag 19 Seal ring 20 Inner tube 21 Clamping device 22 Lower cable traction 23 Upper cable traction 24 Lower cable traction sleeve 25 Sleeve of upper cable traction 26 Guide element for the deviation of the lower cable traction 27 Guide element for the deflection of the upper cable traction 28 Sealing for lower cable tension sleeve 29 Sealing for upper cable tension sleeve 30 Handle 31 Closing lever 32 Closing flange 33 Fixing lever with swivel joint 34 Flange fixing with swivel joint 35 Clamping element between inner tube and outer tube 0, «,

Claims (1)

1. CLAIMS Having thus especially descppto and determined the nature of the present invention and the way it has to be put into practice, it is claimed to claim as property and exclusive right 1 A draining device for bulky bags with inner and outer bags, which it comprises a support device for the Bulky Bag and a device in the form of an open top container, arranged substantially centrally below support device, characterized in that the device in the form of a container is formed as a double tube device, which it comprises an inner tube, an extepor tube disposed therearound, with an outlet attached to the lower edge thereof, and a sublimable and lowered closing ring for closing the upper end of the ring groove formed of the two tubes 2. emptying according to claim 1, characterized in that it presents at least one device of ag movable up and down inside the inner tube for fixing the bag outlet of the inner bag, which by means of a traction device that is manageable from outside the double tube device, can be dragged from top to bottom The draining apparatus according to any of claims 1 or 2, characterized in that the support device for the Bulky Bag consists of a receiving device mounted on a support frame, in particular a receiving tray with a centrally disposed opening, through which the discharge neck is conducted, and the double tube device being mounted in a subible and lowered manner to the receiving device or to the support device by means of one or more up and down devices 4 The draining apparatus according to any of claims 1 to 3, characterized in that the closing ring can be lowered mediantly and one or more lever fastenings, particularly closing clamps, acting on the outer tube and on the closing ring, for closing the ring groove. The draining apparatus according to any of claims 1 to 4, characterized in that the outlet is formed in the form of a funnel, and preferably also comprises a spout connected to the outlet funnel 6. The apparatus for according to any of claims 2 to 5, characterized in that it comprises two to four gripping devices, particularly staples, and the traction devices (11) associated with the gripping devices each include, a respective traction to upper and lower cable (23 and 22) acting on the gripping device, in which the cable tractions are guided away from the double tube device by guiding elements so that by traction in the lower cable traction the gripping device downwards and by traction in the upper cable traction, upwards 7 The casting apparatus according to claim 6, characterized by the fact that they are driven, the upper cable traction in the upper part of the inner tube through the wall thereof, and the lower cable traction in the lower part through this wall or below the lower edge and both tractions are led to cable in the lower part of the outer tube or in the outwardly connected outlet of the double tube device 8 Method for emptying a bulky Bag with inner bag and outer bag characterized by the fact that an apparatus is used casting according to one of claims 2 to 7, and emptying comprises the following steps one after the other. Fix the bulky bag by means of a support device, open the lower strangulation of the bag and release the outlet of the inner bag; driving the discharge necks tucked into each other in the inner and outer bags, through the central opening of the closure ring, and releasing a weld, if any, from the inner bag; fixing the gripping device (s) on the edge of the inner bag outlet, inserting the discharge edge of the outer bag into the ring groove between the inner and outer tubes; lower the closing ring to fix the discharge edge of the outer bag; stretching the discharge edge of the inner bag by pulling down the gripper; open the upper bag choke; lower the double tube device for the stretching of the discharge necks of the inner and outer bags - 1 - DRAINAGE APPARATUS FOR VOLUMINOUS BAGS AND THEIR USE SUMMARY The present invention is directed to a drainage appliance for bulky bags with an inner and an outer bag, with which disturbances during the emptying and contacts with bulk products are avoided. The apparatus comprises a support device (3) for the Bulky bag, a double-tube device arranged centrally below the support device (3), comprising an inner tube (20), an outer tube (7) arranged around it, with an outlet (8) attached to the lower edge thereof, and a sublimable and lowered closing ring (9) for closing the upper end of the ring groove formed of the two tubes. In accordance with a preferred embodiment, the apparatus further includes at least one gripper (21) movable up and down inside ± of the inner tube for fixing the bag outlet of the inner bag, which by means of a traction device (11) which is manageable from outside the double tube device, can be dragged from the top down twenty