EP2762826B1 - Device for the removal of explosive substances - Google Patents

Description

The invention relates to a device for explosive substance disposal according to the preamble of claim 1.

In the prior art detonation chambers are used for various purposes. For example, controlled explosions can be carried out in detonation chambers for experimental purposes. Another application of detonation chambers is the removal of explosives, which can also defused by controlled explosion in a detonation chamber and then disposed of accordingly. EP 0 511 182 (shows) a device for explosive disposal.

Depending on the type and amount of explosive to be removed high forces can occur in the controlled explosion, which act on the detonation chamber. In order to ensure a high level of security even with heavy explosive charges, detonation chambers with correspondingly strong walls are used in the prior art, which are very expensive.

Against this background, the invention has for its object to provide a device for explosive disposal with a detonation chamber, which is inexpensive to produce.

This object is achieved according to the invention by a device for explosive disposal having the features specified in claim 1. Advantageous embodiments of the invention are in the Subclaims, the following description and the drawing.

The explosive disposal device according to the invention has a detonation chamber in which an explosive substance to be disposed of can be disposed of, the detonation chamber having a jacket made of a wound sheet, the shell having a cylindrical shape and being formed by a commercial coil of rolled sheet is. By constructing the cylindrical shell from a wound material, manufacturing costs for the explosive disposal apparatus can be saved. On the one hand, a multi-layer wound jacket can effectively absorb, in particular, the forces which occur radially during the explosion and act on the inner wall of the jacket. On the other hand, less material is required compared to a solid shell with a predetermined wall thickness.

The cylindrical shell is formed of a Blechcoil. This brings a further cost advantage, since a commercial sheet metal coil, as used for example in the automotive industry, can simply be used for the detonation chamber. In particular, in view of the fact that the sheet metal coil must be replaced after a predetermined number of blasts inside the detonation chamber and thus is a wearing part, it is particularly important that it is therefore cheap to replace. Such sheet metal coils, such as those used in automobile production for bodywork, have high demands, in particular on the surface quality and the material quality, even small deviations are sufficient to exclude such use. Such coils then only have scrap value, but are readily usable for the use according to the invention and thus particularly cost-effective.

In addition, according to a preferred embodiment, a respective front part which acts as an abutment is arranged on the two-sided jacket ends of the detonation chamber. The respectively flange-like arranged at the two opposite ends of the detonation chamber front part closes on the one hand the openings of the detonation chamber, so that among other things prevents that, for example, generated during the explosion splinters fly out of the detonation chamber. On the other hand, it absorbs the axial forces acting on the controlled explosion.

A further advantage results from the fact that the respective end parts can be arranged and designed to receive detonation energy in the axial direction with respect to the detonation chamber in the event of detonation of explosive deposited in the detonation chamber.

According to a further preferred embodiment, the jacket is designed to receive detonation energy in the radial direction with respect to the detonation chamber in the event of detonation of explosive deposited in the detonation chamber.

If, according to yet another preferred embodiment, the end parts are in each case displaceably arranged on the two-sided shell ends of the detonation chamber, axial energy can be deliberately reduced when a controlled explosion is carried out by displacing the heavy end parts.

Preferably, the end portions are each formed as filled with fiber container. For this example, commercial containers can be used. This also allows a cost-effective design of the device, the containers can be transported unfilled well.

The device is particularly cost-effective if the containers are filled with sand and / or water-filled containers.

Furthermore, the jacket preferably has an inner diameter of 500-700 mm, preferably of about 600 mm and a length of 1600-2000 mm, preferably of about 1800 mm, so that even larger explosives can be accommodated in the detonation chamber and safely removed ,

A further cost reduction of the device can be achieved in that the jacket is formed by a commercial coil of rolled sheet.

Fig. 1

eine perspektivische Ansicht einer Vorrichtung zur Explosivstoffbeseitigung gemäß einer Ausführungsform der Erfindung;

Fig. 2

ein Querschnitt durch die in Fig. 1 dargestellte Vorrichtung zur Explosivstoffbeseitigung;

Fig. 3

ein Längsschnitt durch die in Fig. 1 dargestellte Vorrichtung zur Explosivstoffbeseitigung; und

Fig. 4

ein Längsschnitt durch die in Fig. 1 dargestellte Vorrichtung zur Explosivstoffbeseitigung orthogonal zu dem in Fig. 3 dargestellten Längsschnitt.

The invention is explained in more detail with reference to an embodiment shown in the drawing. Show it

Fig. 1

a perspective view of an apparatus for explosive disposal according to an embodiment of the invention;

Fig. 2

a cross section through the in Fig. 1 illustrated device for explosive disposal;

Fig. 3

a longitudinal section through the in Fig. 1 illustrated device for explosive disposal; and

Fig. 4

a longitudinal section through the in Fig. 1 illustrated device for explosive disposal orthogonal to the in Fig. 3 illustrated longitudinal section.

Fig. 1 FIG. 11 is a perspective view of an explosive disposal apparatus 1 according to an embodiment of the invention. FIG. The device 1 has a bottom plate 2, on which the detonation chamber 3 with two end parts 4, 4 'is arranged. This floor panel 2 is made of concrete or asphalt, for example, and may be part of a natural or artificial floor, foundation or the like. The detonation chamber 3 has a substantially cylindrical jacket 5, which is even closer in connection with Fig. 2 is described. Inside 10 (see Fig. 2 ) of the jacket 5, a sample 6 with explosive (eg a bomb, mine, grenade or the like) can be arranged and exploded in a controlled manner in order to be safely disposed of or stored afterwards. Furthermore, the jacket 5 is arranged on a carriage 7. At the two-sided front ends of the detonation chamber 3, the above-mentioned end parts 4, 4 'are connected in a flange. The end parts 4, 4 'act in the detonation inside the detonation chamber 3 as an abutment. In this line, the end parts 4, 4 'close less the front-side openings of the detonation chamber 3 but effectively absorb the forces acting axially during the detonation. A targeted energy reduction can take place in that the end parts 4, 4 'move during the detonation by a small amount. As can be seen in the figure, the end parts 4, 4 'are in each case designed as upwardly open containers 8, 8' or containers in which sand and / or water is filled for stabilization or weighting of the containers 8, 8 ', to withstand the detonation energy. The containers 8, 8 'thus form a kind of inertia closure for the detonation chamber 3.

Fig. 2 is cross section through the in Fig. 1 illustrated device 1 for explosive disposal. As can be clearly seen here, the detonation chamber 3 has a cylindrical jacket 5, which is constructed from a wound sheet metal coil. In the interior 10 of the shell 5, a cavity 12 for arranging the sample 6, which is to be brought to controlled explosion, is formed. Furthermore, it can be seen that the carriage 7 with a plurality of rollers 11, here with four rollers 11, 11 ', 11 ", 11 ''', provided that run on the bottom plate 2. These rollers make it possible to push out the sheath 5 formed by the sheet metal coil between the end parts 8, 8 'in order to receive the sample 6 or the explosive to be removed together with the sheathing and subsequently the sheath 5 as free of vibrations as possible between the end parts 4, 4' spend.

In the embodiment shown here, the cylindrical jacket 5 has an inner diameter D _I of 600 mm. The sample 6 located in the cavity 12 is spaced from the bottom plate 2 by 1175 mm, which is indicated in the figure by the distance A _P.

Fig. 3 is a longitudinal section through the in Fig. 1 illustrated device 1 for explosive disposal. As can be seen here, the sample 6 is arranged with its longitudinal axis aligned parallel to the longitudinal axis L of the cylindrical shell 5 in the cavity 12 of the detonation chamber 3. The upwardly open container 8, 8 'are each arranged on foot parts 13, 13', which in the embodiment shown here have a height H _F of 500 mm. The containers 8, 8 'have a height H _B of 2000 mm and a width B _B of also 2000 mm. The length L _{D of} the detonation chamber 3 made of the wound sheet metal coil is 1600 mm.

Fig. 4 is another longitudinal section through the in Fig. 1 illustrated device 1 for explosive disposal, which orthogonal to the in Fig. 3 is shown longitudinal section. The double arrow indicated by the reference numeral 14 indicates the direction of movement of the carriage 7, on which the detonation chamber 3 is mounted. Furthermore, the dimensions of the sample 6 are given here with a length L _P of 742 mm and a diameter D _P of 220 mm. The length L _{B of} the containers 8, 8 'is in each case 2800 mm, the containers 8, 8' being arranged at a distance A _BB of 5900 mm on the base plate 2 are, measured from their respective facing away from the detonation chamber 3 outer walls 9, 9 '.

The explosive-eliminating apparatus 1 described above is designed to controllably blow up to 500 kg of TNT in the detonation chamber 3 and to effectively absorb the forces acting thereon. The dimensions and dimensions given above are only to be understood as examples. It is understood that depending on the size and / or amount of the explosive to be disposed along with sheathing they can be varied within wide ranges. However, the use of commercially available metal coils and filled with sand and / or water containers of the dimensions described above represents a particularly cost-effective option, since it is a commercial container and as sheet metal coils are preferably used as they are common in sheet metal production and cost as preferred Scrap incurred.

LIST OF REFERENCE NUMBERS

1

- Contraption

2

- bottom plate

3

- detonation chamber

4, 4 '

- front part

5

- coat

6

- Sample

7

- Dare

8, 8 '

- Container

9, 9 '

- external walls

10

- inside

11, 11 ', 11 ", 11'"

- Roll

12

- Cavity

13, 13 '

- Foot parts

14

- double arrow

D _I

- Inner diameter jacket

A _p

- Distance sample to bottom plate

H _F

- Height foot part

H _B

- Height of container

B _B

- Wide container

L _B

- Length of container

L _D

- Length detonation chamber

L _P

- length of sample

D _P

- diameter sample

A _BB

- distance container - container

L

- longitudinal axis

Claims (8)

1. A device (1) for explosive disposal, with a detonation chamber (3), in which an explosive substance (6) which is to be disposed of / detonated, can be deposited, wherein the detonation chamber (3) comprises a casing (5) which is manufactured of a wound sheet, characterised in that the casing (5) has a cylindrical shape and is formed by way of a commercially available coil of rolled sheet.
2. A device (1) according to claim 1, characterised in that a face part (4, 4') which acts as a abutment is arranged on the casing ends of the detonation chamber (3) which are at both sides.
3. A device (1) according to claim 2, characterised in that the respective face parts (4, 4') are arranged and designed, in order to absorb detonation energy in the axial direction with respect to the detonation chamber (3), in the case of a detonation of explosive substance (6) deposited in the detonation chamber (3).
4. A device (1) according to one of the claims 1 to 3, characterised in that the casing (5) is designed in order to absorb detonation energy in the radial direction with respect to the detonation chamber (3), in the case of a detonation of explosive substance (6) deposited in the detonation chamber (3).
5. A device (1) according to one of the claims 2 to 4, characterised in that the face parts (4, 4') are each displaceably arranged on the casing ends of the detonation chamber (3) which are at both sides.
6. A device (1) according to one of the claims 2 to 5, characterised in that the face parts (4, 4') are each designed as containers (8, 8') filled with ballast material.
7. A device (1) according to claim 6, characterised in that the containers (8, 8') are preferably containers filled with sand and/or water.
8. A device (1) according to one of the claims 1 to 7, characterised in that the casing (5) has an inner diameter of 500 - 700 mm, preferably of about 600 mm, and a length of 1600 - 2000 mm, preferably of about 1800 mm.

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