EP1224133B1 - Squared, foldable hank - Google Patents

Description

The present invention relates to a cuboid, foldable container according to the preamble of Claim 1.

For the transport of solids there are high requirements with regard to safety (e.g., load securing, storage safety), quality and economy required.

For example, shows itself in the packaging and transport in conventional bag-like containers the so-called big bags insufficient stability and dimensional accuracy of the big bags. As a result, additional measures in the Bagging, loading and securing required. The low dimensional stability In addition, it increases the risk that the big bags are caused by internal tension or be damaged by "rubbing together" during loading and transport (Security risk) and that unusually high pressures at pressure and / or friction-sensitive products are effected. Due to an increased dust content In doing so, the dust explosion risk in the case of dust explosive substances becomes clear increases or develops only when the product exits due to bursting or damage of the big bag. Insufficient dimensional stability and stability of the big bags In addition, it can harbor risks when storing the big bags. So, for example Dropping or dropping pose a security risk. Furthermore Optimized packing of the big bags improves the economy of storage elevated.

Furthermore, in the usual loading of the big bags on a pallet stacking limited. For example, in the event that bisphenol A prills to be packaged in a standard 20-foot box container (20-box containers) (ISO 22G0 and following) none, the market weight units corresponding, e.g. conventional 1000 kg big bags including pallet stacked be and requires a lot of load securing. Furthermore a large part of the load volume is not used. Even with a stack one of the market weight units, e.g. usual 500 kg big bags including pallet and one, the usual market weight units corresponding, e.g. conventional 1000 kg big bags including pallet one above the other In addition, a high amount of load securing is required also a part of the load volume not used.

Object of the present invention is therefore a container for to provide free-flowing solids, which has the disadvantages of the prior art does not have.

This object is achieved by containers according to claim 1.

The invention relates to a cuboid foldable container, which has the features of claim 1.

Preferred developments are in the dependent Claims defined.

The free-flowing solids to be used according to the invention have bulk densities of preferably 300 to 900 kg / m ³ , particularly preferably 400 to 800 kg / m ³ and very particularly preferably 500 to 700 kg / m ³ .

The container according to the invention (hereinafter also called big bags) are baggy containers. They can consist of any textile fabric. she are preferably made of synthetic fiber fabric.

The containers have many advantages. she are characterized by a high level of safety, for example a good one Load securing and high storage safety. In addition, they have a high Economy, because a very dense packing of free-flowing solids is possible (so-called Dense Pack System).

The free-flowing solids to be packed according to the invention can be, for example powdered (e.g., flour or product dust), semolina (e.g., semolina, Wheat), pearl-shaped (e.g., prills from, e.g., bisphenols), flaky (e.g. Dandruff of e.g. Bisphenols), or granular. The granules can be cubic, lenticular, spherical or cylindrical, for example. Such granules are, for example, plastic granules, e.g. Granules out Polycarbonate, acrylonitrile-styrene polymers, ABS, polyamides, polyolefins and other plastics.

Free-flowing solids preferably usable according to the invention are those of Bis (4-hydroxyaryl) alkanes (bisphenols). Especially interesting here is the industrially important example bisphenol A (BPA). The preferred to be packaged Form of the BPA solid are the BPA prills. Under prills become spherical or understood almost spherical solid particles. The diameter of the balls is typically 0.1 mm to 1 cm.

For loading and unloading and storage are usually combined Systems of big bags and a transport pedestal, e.g. a pallet. However, this has the disadvantage that when using pallets valuable Loading volume is lost. In addition, there is the risk of slipping or slipping the big bags from the transport pedestal. Do you use transport sub-sets? low or very low height, so may increasingly more cargo volume be used, but there is still the risk of slipping and slipping the big bags from the transport pedestal.

It has now further been found that by integrated gripping and handling devices (Grip edge) on the big bag the advantage of the optimal loading volume Can be combined with the avoidance of slipping or slipping of the Big Bags from the transport pedestal.

In particular, it is in the integrated gripping and handling device (Gripping edge) around a solid, preferably lubricious layer at the bottom of the Big Bags firmly attached to the big bag, for example, is sewn, and the ground to this at least one edge so far surmounted that they with suitable devices can be taken so that the big bag in this way, for example, on or can be pulled from a field vehicle. In the integrated gripping and Handling device may also be, for example, a plastic plate act.

The integrated gripping and handling device can be made of different Be made of materials. For example, it can be made of the same material as the actual big bag to be made. In addition, coated fabrics, e.g.

Fiberglass or plastic fabrics coated with a lubricious material, e.g. Teflon, coated are used. Also suitable are plastics, for example reinforced plastic films.

The integrated grip edge is preferably connected to the big bag so that even if handled improperly, e.g. Ripping or tearing the grip edge of the actual big bag is not damaged. This can be an accident or Security risk can be significantly reduced by product leakage. this will For example, achieved in that the integrated grip edge only at the edge of Big bag bottom connected to the big bag, e.g. sewn is.

By combining the container according to the invention with excellent stability and Dimensional accuracy and integrated gripping and handling device on Container is now an optimal and flush filling of the container possible (Dense Pack system), whereby an inherent cargo security is achieved, and the Security risk is reduced. In addition, by a flush finish and the optimized packing of the container with the contamination of the product Environmental influences, e.g. Oxygen and moisture, reduced as the specific Surface (over the Big Bag walls) to the environment clearly is reduced. The reduced contamination causes an improved Lagerund Product stability. Furthermore, the economy of transport improved by the optimized utilization of the loading volume.

Particularly preferred is therefore in particular a method for filling a conventional 20 'box container (ISO 22G0 and following) with filled Containers of a total weight of 20 t, characterized in that Bulk goods in preferably corresponding to the customary weight units, e.g. 500 and 1000 kg of big bags according to the invention are filled and loaded.

For example, the following measurements are available on 1000 kg big bags: outside length 1060 mm (+/- 10 mm) external width 1060 mm (+/- 10 mm) external height 1170 mm (+/- 20 mm).

The big bags according to the invention are characterized in that the stability and dimensional stability of the big bags through the additional inner support fabric is improved.

The Big Bags are characterized in particular by the additional inner Support fabric with preferably elliptical openings, preferably one circular opening as the uppermost opening of the inner supporting tissue, in turn are preferably evenly distributed, is provided. These openings serve For example, for fast and even filling of big bags. The The longitudinal axis of the elliptical openings is preferably parallel to the big bag bottom.

The integrated gripper and handling device on the container can by special Execution of the corridor vehicles, which transport the Big Bags, safe and be used economically. Also not integrated gripping and handling equipment on the big bag, e.g. a combination of big bag and suitable gripping and handling devices can by the special Ausfiihrungen the corridor vehicles are used.

Conventional floor vehicles are characterized by a stem, the largest possible Stability for the big bag / transport pedestal system has. The characterized wide embodiment of the stem has the disadvantage that at the Dense Pack System (DPS) will damage the adjacent Big Bag In addition, there is a risk that, especially when unloading two Big bags are seized, causing a high risk of damaging one or both Big bags, for example, by falling over or falling, means.

Also found was a suitable device for floor vehicles for the Handling of big bags with preferably integrated grip edge. This device is also suitable for appropriate gripping and handling equipment, that are not integrated in the big bag, e.g. a combined system Big bag and a transport pedestal.

The suitable device for floor vehicles is characterized by its optimized Geometry that allows safe handling during loading and unloading. Here, geometry and dimensions are chosen so that on the one hand in the Dense pack System (DPS) damage to the adjacent Big Bag can be avoided and the Risk that especially when unloading two big bags are seized, what a high risk of damaging one or both big bags, for example by Falling or falling, means significantly reduced, on the other hand, the Support surface for the Big Bag on the ground vehicle is designed so that a safe and economical loading and unloading is possible. In addition, draws the device of the floor vehicles by a low frictional resistance out, leaving the newly developed big bag with its preferably integrated gripper and Handling device safely and quickly on the ground vehicle device or can be pulled by the corridor vehicle device. Low friction resistance For example, by polished surfaces or additional Aids, e.g. Poly (tetrafluoroethylene) spray achieved. In addition, it stands out the suitable device for floor vehicles by a movable gripping device from a safe and quick transfer to the ground vehicle device or allowed by the field vehicle device. This gripping device can For example, be hydraulically controlled by the operator.

The following procedure for pulling the big bag with preferably integrated Gripping and handling device on the inventively equipped hall vehicle can be used, for example.

A moving floor vehicle device with gripping claw is up to the edge of Charging surface of the ground vehicle driven, from the edge of the Big Bags with preferably integrated gripping and handling device on the support surface drawn. The gripping claw grasps the grip edge, then the big bag with velvet the integrated grip edge pulled on the support surface of the field vehicle. to Transport of the big bag thus located on the support surface of the floor vehicle For example, in a container pushes the movable floor vehicle device with gripping claw the big bag together with the integrated grip edge of the support surface down.

Of course, other large containers, preferably containers, with For example, 40'-box containers (ISO 42G0 and the following).

The present invention will be described below with reference to four figures exemplified without limiting itself to these.

example

Fig. 1 represents in plan view looking towards the bottom of the big bag one cuboid big bag with square bottom surface. In the big bag are sewn in webs of additional inner support fabric (1). These tracks thus separate a central cavity of four small cavities that over from the edges of the big bag.

Fig. 2 shows the big bag of Fig. 1 in a perspective view. The viewing direction is aimed at one of the four lanes from the inside of the big bag additional inner support fabric and on the underlying edge of the big bag. There are two side walls of the Big Bag (2), a track made of additional material inner support fabric (1), in which a circular hole as the top opening and elliptical holes (3, 4, 5, 5a) are located. Also, at the top of the edge of the Big Bags a strap (6) attached.

Fig. 3 shows an arrangement possibility for optimal filling of a container (7) with the big bags (8) according to the invention. The container is shown open at the top. To recognize are two superimposed layers of the invention Big bags. For clarity, the covered Big Bags and the hidden Lines of big bags not shown.

4 shows the preferred embodiment of the big bag according to the invention (9) with straps (6) and four tracks made of additional inner support fabric (1) with holes therein (3). The characterizing feature of the preferred Embodiment of the big bag is the slidable thin plastic plate (10) firmly sewn to the bottom of the big bag.

Claims (5)

1. Cuboid, foldable packing drum (9) of high-strength fabric for finely particulate bulk materials with four side walls (2), wherein in each case a side edge is arranged between two adjacent side walls (2) and diagonal supporting walls (1) of fabric secured laterally on the side edges are provided to reinforce the side edges in the interior of the packing drum (9), and with a filling socket and optionally an additional outlet socket as well as a floor that comprises an additional high-strength sliding surface of reinforced fabric material or a plastics plate, wherein the sliding surface is securely joined to the packing drum (9) and on at least one side of the packing drum (9) extends in the form of a gripping edge beyond the side wall (2), characterised in that the gripping edge projects at an angle to the surface of the floor.
2. Packing drum according to claim 1, characterised in that the sliding surface consists of fabric based on polypropylene, polyethylene or PVC.
3. Packing drum according to one of claims 1 or 2, characterised in that the gripping edge projects by means of seams on the gripping edge or plastics inlays in the gripping edge at an angle to the surface of the floor.
4. Packing drum according to one of claims 1 to 3, characterised in that the supporting walls (1) are attached at an angle of 45° ± 5° to the side walls (2).
5. Packing drum according to one of claims 1 to 4, characterised in that the supporting walls (1) comprise a plurality of openings (3, 4, 5, 5a) arranged above one another for the bulk material, wherein the openings (5, 5a) in the lower region have an oval, flat cross-section.

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