RU2382982C2 - Device to destruct explosive in weak cases - Google Patents

Abstract

FIELD: weapons.

SUBSTANCE: invention relates to means of destructing self-made explosives in weak cases without initiation of explosive charge. Proposed device comprises casing accommodating work substance and explosive charge. Casing has working surface though which work substance is forced out. Explosive charge is prepared to ensure propelling work substance without initiating self-made explosive. Note that work substance is placed, with respect to explosive charge, on the side opposite the casing work surface to provide for counterweight. Said casing and work surface are selected to rule out forming hitting elements in blasting explosive charge. Work substance represents fluid or finely dispersed loose material.

EFFECT: optimum utilisation of blast energy and minimum environmental effects.

3 cl, 2 dwg

Description

The invention relates to means of combating improvised explosive devices (WU) in low-strength cases, such as suitcases, parcel boxes, shopping bags, etc., and is intended for their destruction without initiating a charge of explosive substances (BB) WU. When neutralizing a homemade firearm, as a rule, the location and type of explosive device are not known. Therefore, the destruction of such WUs without explosion can be guaranteed only with simultaneous exposure to the entire accessible surface of the WU.

Two technical solutions are known that are close to the claimed device: the device according to the patent of the Russian Federation No. 2140056, 1999, and the device FR 2558949 - A1, 1984.

In the device according to the patent of the Russian Federation №2140056 propellant explosive charge is made in the form of a funnel. This form of charge causes the formation of a narrow jet of working fluid and, accordingly, a small area of destruction of the surface of the WU. In addition, in the invention of this patent, the propellant charge is not fixed in the housing. Therefore, a situation is possible when the propellant charge of the explosive is in contact with the device body in the place where the device is installed on the VU, or the distance from the propellant charge of the explosive to the device body is small. In this case, it is possible to initiate a charge of an explosive device explosive charge by a shock wave that occurs when the propellant explosive charge of a device is detonated and passes through a thin layer of working fluid, the device wall, and a home-made explosive.

The closest analogue of the claimed invention is the device described in FR 2558949 - A1, where the missile substance is a monolithic block consisting of lead shot, filled with a binder - gypsum or cement. In this case, the effective part of the missile substance - lead fraction - is slightly more than half the volume intended for the missile substance. Lead shot in the event of a slip or rebound can be dangerous to humans. In addition, the location of the missile substance in this design only on one side of the charge causes a low speed of its throwing, compared with the potentially achievable speed for these masses of charge and missile substance. This is due to the lack of anti-mass - a massive body or substance on the other side of the explosive charge. Under these conditions, most of the explosion energy is scattered in space. It is dangerous to use the massive case of the device as a backwater, since during the explosion of the explosive charge the case can form one or more damaging elements.

The problem to which the invention is directed, is to create a device for the destruction of explosive devices in low-strength cases, in which the destruction is provided by a working substance, propelled by the energy of the explosion and acting simultaneously on the entire accessible surface of the explosive device, while the possibility of initiating an explosive contained in the destroyed WU, the shock wave arising from the explosion of explosives, throwing the working substance contained in the device, the mass must ensure optimal use of energy explosive explosions throwing a working substance, in the volume allotted to the working substance, there must be a minimum number of inclusions that are ineffective from the point of view of destruction of the VI, and when the device is triggered, no fragments or other kinetic elements hazardous to humans should form.

Such a solution is provided by a device for destroying explosive devices in low-strength cases, comprising a body in which the working substance and explosive charge are placed, the body having a working surface through which the working substance is thrown, and the explosive charge is made from the condition for ensuring the working substance is thrown and the absence of the initiation of explosive destructible explosive device, characterized in that the working substance is additionally placed relative to the explosive charge from the sides s, opposite the working surface of the housing, to provide anti-mass, while the housing and the working substance are selected from the condition that upon explosion of the explosive charge they do not form damaging elements.

As a working substance, a liquid, for example water, a solution of sodium chloride, antifreeze, etc., or a finely divided free-flowing substance, such as sand, sodium chloride, and the like, can be used.

The impact on the entire accessible surface of the VU can be ensured by the use of the described devices of different sizes and (or) the simultaneous use of several devices.

When using liquid as a working substance, the latter completely fills the volume allocated to it. When finely dispersed granular substances are used as the working substance, the fill factor of the volume is higher than when using spherical elements of the same or similar sizes, for example, lead fraction. When using spherical elements of the same or similar sizes, the fill factor is equal to the ratio of the volume of the ball to the volume of the cube into which it is inscribed: π / 6≈0.52. When using fine granular substances, the fill factor is higher due to the presence of particles of different sizes and shapes in the substance. The dense arrangement of particles can be technologically implemented using a vibration damper (vibration stand).

Unlike lead or other fractions, liquids and finely dispersed bulk substances do not form damaging elements dangerous to humans during explosive throwing.

The placement of the working substance relative to the explosive charge both from the side of the working surface of the housing, and from the opposite side as a counter-mass, allows the use of a thin-walled housing, which, being destroyed by the explosion of the explosive charge, will also not form fragments dangerous for humans.

The drawings depict examples of the invention:

figure 1 - a device for the destruction of improvised WU with a liquid working substance;

figure 2 - a device for the destruction of improvised WU with a fine granular working substance.

A device for the destruction of improvised WU with a liquid working substance (see figure 1) contains a thin-walled housing 1 made of polyethylene. In the housing 1, at a distance of 50 mm from the working surface 6, a concentrated charge BB 3 made of explosive A-XI-1, weighing 10 grams, is installed using tube 4. As the working substance 2, water or antifreeze is used. The thickness of the layer of liquid used as an anti-mass is 75 mm. The charge of explosive 3 is initiated by the electric detonator of an electric-electronic converter (or a similar one) installed in the initiation unit 5 through a transfer charge of explosive 8. The body of the product is filled with liquid through an opening closed by a plug 7.

A device for the destruction of improvised WU with a fine granular working substance (see figure 2) contains a thin-walled housing 1 made of impact-resistant polystyrene. In the housing 1, at a distance of 25 mm from the working surface 6, a membrane 4 is installed, on which a flat explosive charge 3 is placed, made of elastic explosive EVV-34 weighing 22 grams. As the working substance 2, sand is used. The thickness of the sand used as an anti-mass is 30 mm. The charge of explosive 3 is initiated by the electric detonator of the electronic converter (or similar) installed in the initiation unit 5.

Both of the above structures with direct contact of the working surface with the surface of the explosives guarantee destruction without initiating the following explosives: TNT, PVV-5A.

Claims (3)

1. A device for the destruction of explosive devices in low-strength buildings, comprising a housing in which the working substance and explosive charge are placed, the housing has a working surface through which the working substance is thrown, and the explosive charge is made from the condition for ensuring the working substance is thrown and the absence of the initiation of explosive destructible explosive device, characterized in that the working substance is additionally placed relative to the explosive charge on the side opposite the working surface of the housing to provide protivomassy, wherein the housing and the substance selected from the condition that the explosion of the explosive charge, they do not form damaging elements. 2. A device for the destruction of explosive devices in low-strength buildings according to claim 1, characterized in that a liquid is used as a working substance. 3. The device for the destruction of explosive devices in low-strength buildings according to claim 1, characterized in that as a working substance used finely divided granular substance.

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