EP0857666A1 - Container for liquids - Google Patents

Abstract

The canister (1) consists of an approximately cubic metal container, which has filling and emptying holes (15) and a thick outer liquid-tight recycled plastics protective transport sheath. The walls and base of the sheath are reinforced by rods (8) to form a mesh. The rods in the outer sheath extend vertically downwards to wrap under the base and provide fixtures and reinforcements for fixtures, e.g. nuts. A supplementary transport base (2) section is tightly attached to the sheath, and has indentations (3) for the forks of a forklift truck. The upper part of the metal container is protected by a rod-reinforced plastics cover (5) bolted to the lower section.

Description

The invention relates to a device for storage of liquid, especially an aggressive one Liquid, which device from a lockable Containers exist, in any case with an opening for filling and / or Provided outlet purposes, the container of a transport floor is supported, which is for receiving is suitable by external means of transport like the lifting organs a forklift, and the container at all Sides is surrounded by a protective device.

Such devices are intended to be aggressive To store liquids in relatively large quantities whereby the weight is significant and their transportation will be done mechanically. Such containers are used for usually placed on preformed pallets so that move the entire construction from a forklift can be. To avoid damaging such containers, it is known to protect the container attach that from a plastic wall with open Top can consist of which top of the Container can be let in. The content of the by the Wall and the range of limited space can be smaller or smaller be at least as large as the content of the container, so that in the event of leakage from the container Liquid cannot leak. In this embodiment the top is open and the container is not on the top protected.

In another embodiment, is around the container a metal grille is arranged around it, but it is open and therefore not the security function against Has leakage.

The invention aims to improve such Device after receipt that the container at all Pages is protected and that the device is also a Safety function to stop leakage having.

The device according to the invention differs in that the protective device by a liquid-tight reinforced plastic wall is formed, the lower edge of which is close to the top of the transport floor connects, the reinforcement with the transport floor connected is.

The protection is thanks to the reinforced plastic wall optimal against external shocks. The plastic wall is on all sides around the container so that the Container is fully protected. This also forms reinforced plastic wall an additional protection against Weather influences and ensures higher performance levels in the final packaging check.

Thanks to the measure, the reinforcement also as Using fasteners on the support pallet will a secure connection between the full plastic wall guaranteed on the outside and the pallet. Thereby licking is impossible. The whole thing is easy removable, so that the container for storing the aggressive liquid easily through another container can be replaced. In the preferred embodiment, the Reinforcement made up of bars to form a mat, the vertical bars extend to below the floor Attach fasteners such as nuts to it.

To ensure a fluid-tight connection between the lower edge of the bulkhead and the pallet too ensure is a sealant like a packing ring in between, which is brought under pressure at the fastening of the reinforcing bars on the pallet.

The invention is detailed in the following Description of figures of an embodiment explained.

In the attached drawing is a Embodiment shown in the 1 with the container for the liquid V is indicated. The container is open a support floor 2 in the form of a pallet, what floor for that purpose using the bottom Recesses 3 is provided, in which the fork one Forklift can intervene. Around container 1 a protective wall 4 is attached, which consists of four vertically standing wall parts that are at the top of a cover surface 5 are connected. The lower edge 6 of the vertically standing wall parts closely adjoins the Top wall of the support floor 2. The support floor 2 has preferably a groove 16 in which a packing ring 7 is attached from the bottom of the perpendicular standing wall parts 4 is pressed.

The wall parts are made of a plastic material, which is reinforced by means of a mat-shaped reinforcement 8. The reinforcement consists of vertical and horizontal Rods of metal or the like and in the Preferred embodiment are some vertical bars 9 after Extended at the bottom and with a threaded end 10 provided on which a nut 11 can be screwed. The Thread end is through holes in the support base 2 inserted, after which the nut 11 is placed on the underside can be. By tightening the nut the Sealing ring 7 is subjected to a voltage.

For the sake of completeness it is stated that the Cover surface 5 is provided with openings 15 which with Openings in container 1 are aligned so that container 1 of can be filled or emptied on the outside. This Openings can be made with another plastic part be closed by means of a snap, clamp or Screw connection is attached.

Finally, it is noted that if there is any leakage from the container 1, liquid can get into the space between the outer wall 4 and the wall of the container 1.
This liquid cannot flow away due to the sealing effect of the packing ring 7.

In order to be able to remove the liquid, the support base 2 is provided with a recessed channel which extends below the container 1. The recessed channel is indicated by 12, which recessed channel is closed with a lip-shaped extension 13 on the outside of the wall 4. The lip-shaped extension 13 is provided with a closable outlet opening 14. The leakage liquid can be drained through this opening 14.
In another embodiment, the channel 12, which deepens towards the outer edge of the support base 2 or the plastic pallet, is designed as an integrated collecting trough within the pallet and ends in front of the edge of the pallet, the upper outer edge of the base pallet as well as the lower edge the reinforced wall 4 are evenly formed all around. Between the lower edge of the reinforced wall 4 and the outer edge of the floor pallet is a smooth, all-round sealing tape (= packing ring 7). The collecting trough opens into a recess directly behind the edge of the floor pallet, in which case the outlet opening 14, which can be closed in a liquid-tight manner by means of a stopper (for example a ¾ inch plug), is arranged in the edge.
In a further embodiment, the edge of the floor pallet is provided with a circumferential groove in which the sealing tape is inserted, against which the underside of the reinforced wall inserted into the groove seals.
The thickness of the reinforced wall is approx. 10 mm to 30 mm and the width of the groove is approx. 12 mm to 32 mm. The thickness of the metal bars representing the reinforcement is approximately 5 mm to 6 mm. In the case of larger wall thicknesses of the reinforced plastic wall, the plastic material can preferably consist of foamed plastic to save weight or material. Recycled, already used plastic material (recycling material) can be used in an excellent manner - completely or at least in part or in part - for the production of the reinforced plastic wall.
The wall parts of the reinforced wall 4 with the metal grid embedded in the plastic material can, for. B. in the rotational molding process (rotational molding), in the pressing process or in the injection molding process.
The configuration of the reinforced wall according to the invention is intended in particular for larger pallet containers with a filling volume of approximately 500 l, preferably approximately 1000 l or more. Such pallet containers with a thin-walled plastic inner container made of high-purity plastic material (without any components of metal ions) are particularly suitable for the transport and storage of sensitive critical liquids (e.g. caustic acids, lyes) for the production of electronic components (microchip production ) suitable or provided.
The invention is not limited to the embodiments described above.

Claims (4)

Liquid storage device, especially an aggressive liquid, which Device consists of a lockable container, with an opening to fill and / or Provided outlet purposes, the container of one Transport floor is supported, which is taken up by external means of transport is suitable like the lifting organs a forklift, and the container on all sides of is surrounded by a protective device, thereby characterized in that the protective device by a liquid-tight reinforced plastic wall is formed, whose lower edge is close to the top of the Transport floor connects, the reinforcement with the Transport floor is connected. Apparatus according to claim 1, characterized characterized in that the reinforcement from bars to a Mat is built, the vertical rods up to the Floor extend to fasteners, such as Nuts to attach to it. Device according to claim 1 or 2, characterized characterized in that between the lower edge of the bulkhead and the support floor a sealant like a Packing ring is attached. Device according to one of the preceding claims, the supporting floor with one in its upper Surface extending discharge channel is provided, thereby characterized in that the mouth of the discharge channel of a wall extension is closed with a Drain opening is provided.

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