RU2643U1 - DEVICE FOR DISCONNECTING EXPLOSIVE OBJECTS - Google Patents

Abstract

1. A device for the disposal of explosive objects containing an explosive charge enclosed in a housing and an initiating device, characterized in that the explosive charge is made in the form of a group of axisymmetric cumulative charges uniformly placed in the matrix, and an additional linear charge on the periphery of the matrix, with cumulative charges connected in series by detonation rods, and the last cumulative charge is connected to a linear charge. 2. The device according to claim 1, characterized in that the parameters of the cumulative charges are determined by the relations α = 70-100; 0.2 <m / m <2; where a is the angle of the cumulative recess; m is the mass of the explosive substance of the cumulative charge; m is the mass of the cumulative lining.

Description

The utility model relates to explosive technology, in particular, to ensuring the safe disposal of explosive objects, for example, subversive explosive devices. These devices, as a rule, contain the main charge of a blasting explosive (BB), connected by a detonation line with a detonator and a detonator activation system.

A device for the destruction of various objects, documents, devices, which is a cartridge filled with a pyrotechnic composition, having openings with an igniter composition pressed into them (application of Great Britain N 1414758, publication 1975). The disadvantage of this device is the danger of its use for the environment, because the facility is burned, and if it turns out to be explosive, mechanical damage can occur in the explosion zone.

An explosive device for detaching suspicious devices at a distance is also known (French application N 2558949, publication 1975). It is taken as the closest analogue. The device has a flat charge ejected by gas pressure, which ensures the neutralization of devices of an allegedly explosive nature. A flat charge is formed by a fluid cured with a binder. To eject a flat charge from the case, an explosive charge is used, the initiation of which is provided by the detonator. All components of the device are housed in a housing. The device serves for a quick attack to neutralize suspicious objects through thin partitions at a distance.

The disadvantage of this device is the explosive nature of the disposal, leading to danger to others, providing relative safety for the attacker. The technical task to be solved is to create a device for the reliable, safe for others disposal of explosive objects such as sabotage VU. The safety of disposal can be ensured by the minimum probability of explosive destruction.

Expected from the implementation of the claimed device, the technical result consists in neutralizing the WU without detonating the main charge of the blasting explosive by destroying the elements of the WU. It should be borne in mind that sabotage WU can be disguised as household items, so the possibility of a preliminary study of the location of elements WU is excluded.

The technical task is solved by a device for the disposal of explosive objects, containing, like a prototype, an explosive charge enclosed in a housing, and a device initiating it. The difference from the prototype is the explosive charge in the form of a group of axisymmetric cumulative charges uniformly placed in the matrix, and an additional linear charge on the periphery of the matrix, while the cumulative charges are connected in series by detonation rods, and the last cumulative charge is connected to a linear charge. In addition, the parameters of the cumulative charges are determined by the ratio:

W 70 .. 100; 0.2 - 2,

J. is the angle of the cumulative recess,

  explosive mass of the cumulative charge; / М0&.& - mass of the cumulative lining.

The execution of the explosive charge in the form of a group of axisymmetric cumulative charges placed uniformly in the matrix makes it possible to achieve damage to the elements of the explosive device, mainly the blast explosive charge. This is especially significant for WUs disguised as various household items (bags, bags, suitcases, etc.). The interval between charges is selected based on the expected dimensions of the WU and the exclusion of the mutual influence of charges on each other.

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The choice of parameters of cumulative charges is made, taking into account the features of the neutralized objects. Explosive objects may contain explosives of different sensitivities. When neutralizing them, it is necessary that the cumulative jet, acting on the explosive, does not cause an explosion and detonation. For this purpose, relations are introduced that limit the possibility of an explosive (detonation) process:

PPvv,

0) 2 2; - 70 10 °

It is known that reducing the angle of cumulative excavation

at - const leads to an increase in the velocity of the cumulative jet and,

accordingly, an increase in pressure in the medium affected by the jet. And this increases the likelihood of an explosive detonation object explosion. In addition, the velocity gradient in the jet increases, the jet becomes unstable, and armor penetration drops sharply. It has been experimentally established that exceeding the angle of the cumulative recess 100 leads to such a slow collapse of the lining that the jet becomes short and the armor penetration drops sharply. And when the angle l decreases below 70 °, the cumulative jet is unstable, and has a high speed of movement, which sharply increases the likelihood of an explosion. At ---- const within the indicated limits of the angle X 70,. 100 °

effective punching at minimum probability

the explosion of an explosive object. To limit the speed of the cumulative jet, the ratio between the mass of the explosive charge and the mass of the lining experimentally established 0.2 2.

This ratio determines the limiting speed of movement of the cladding and, accordingly, the speed of the cumulative jet after

collapse. At. „0.2 the jet velocity is less than

fflir $ affl al

at which jet formation is possible, and at --2-2 even

in the range i'm 70. . 100 the speed of the cumulative jet becomes high and the likelihood of explosion detonated object increases.

Fig. 1 shows a sectional view of the device. Fig. 2 device, top view.

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with the cumulative charges 4 located in it, a linear charge 5 at the periphery of the matrix 3. The cumulative charges are connected by detonation rods 6, the last of which is connected to the linear charge 5. The parameters of the cumulative charges are selected according to the indicated ratio. The device operates as follows. The neutralization device is placed on the object. Engage from the initiating device 2 groups of cumulative charges 4, triggering sequentially. Cumulative charges 4 form a system of shock waves and rarefaction waves in the object to be neutralized. In this case, mechanical destruction of the elements of the object of neutralization occurs. Significant pressures arising in the zone of action of the cumulative jet during its interaction with the explosive object, lead to chemical reactions and the release of energy. The energy of expansion of products from the reaction zone further enhances the mechanical destruction of the elements of the object. Since the linear charge of 5 explosives located on the periphery of matrix 3 is fired last and farthest from the central zone, its explosion finally separates 4 parts of the object destroyed by cumulative charges, thereby achieving complete elimination of the neutralized object from the working state. Thus, the specified set of structural features provides reliable neutralization of explosive hazardous objects by their safe destruction, excluding the explosive (detonation) process in the explosive object.

Claims (2)

1. A device for the disposal of explosive objects containing an explosive charge enclosed in a housing and an initiating device, characterized in that the explosive charge is made in the form of a group of axisymmetric cumulative charges uniformly placed in the matrix, and an additional linear charge on the periphery of the matrix, with cumulative charges connected in series by detonation rods, and the last cumulative charge is connected to a linear charge. 2. The device according to claim 1, characterized in that the parameters of the cumulative charges are determined by the relations
α = 70 ^o - 100 ^o ; 0,2 <m _{in the in} / m _{of b l.} <2;
where a is the angle of the cumulative recess;
m _{B B} - mass of the explosive shaped charge;
m _{of b l.} - mass of cumulative lining.