CZ300159B6 - TNT cartridge or TNT and pentrite or hexogen or octogen or other additive blend cartridge - Google Patents

Abstract

In the present invention, there is disclosed a TNT cartridge or TNT and pentrite or hexogen or octogen or other additive blend cartridge comprising a base body (1) of TNT or of a blend of TNT and pentrite or hexogen or octogen or other additives, which is provided with a well (2) for initiating means. In said well (2) surrounding, there is disposed inside the base body at least one initiating corpuscle. At least one initiating corpuscle is formed by a detonating cord (3, 30, 31, 32), whereby at least a portion of said detonating cord (3, 30, 31, 32) surface on the side adjoining the well (2) for the initiating means forms at least a portion of the well (2) surface.

Description

Technical field

The invention relates to a charge of TNT or a mixture of TNT with pentritc or hexogen or octogen or other additives comprising a base body of TNT or a mixture of TNT with pentritc or hexogen or octogen or other additives provided with a sump for initiation means, in the vicinity of which at least one initiator body is received in the base body.

The prior art i? Cartridges for tinning industrial explosives and cartridges for destructive work are produced by casting a melt of trinitrotoluene (TNT) or molten mixture of TNT with the addition of eg pentrite, hexogen. octogen or other suitable additive. To initiate the sc cartridges, it uses a standard detonator No. 8 to 12, which is inserted into the sump formed in the cartridge body.

For the production of cartridges sc currently uses a molten mixture of TNT with either pentrite or hexogen or octogen, while ensuring reliable initiation of the cartridges by the standard detonator used. 8 to 12, the content of the said raw materials in the resulting mixture must be higher than 50% by weight, where the charge material is sufficiently sensitive to initiation by detonator no. 8 to 12, but this presents a major disadvantage for producing such charges. . which is disadvantageous from a technological point of view since it makes the casting of the cartridges more difficult. Another disadvantage of this embodiment is the high cost of the composite material used to make charges.

Charges from TNT or from a mixture of TNT with pentrite or hexogen or lower octogen

However, it may not be reliably initiated by a detonator containing admixture substances which have better flowability and lower cost. In order to do this, it is necessary to provide a charge in the vicinity of the detonator well with an initiator or an explosive which is sensitive to initiation by a standard detonator. 8 to 12 and capable of further initiating the charge material itself. At present, the problem of initiator bodies is solved by embedding bodies produced by pressing pentrite or hexogen or octogen phlegmatized with wax. However, the use of these initiator bodies is very costly, since a special pressing device is required to manufacture the molded initiator bodies with the costly necessary safety of the manufacture of the initiator bodies.

The object of the invention is to eliminate or at least minimize the disadvantages of the prior art.

SUMMARY OF THE INVENTION

The disadvantages of the prior art are eliminated by a charge which is based on the fact that i? at least one initiator body is formed by lightning. wherein at least a portion of the surface of the detonator on the side adjacent to the sump for the initiator means constitutes at least a portion of the sump surface.

This makes it possible to replace the expensive initiator bodies used hitherto inexpensively while maintaining full functionality and reliability.

According to a preferred embodiment, the detonating cord is formed by a helical detonating cord with mutually adjacent adjacent threads, in the center of which the sump for the initiating means is situated.

According to a further preferred embodiment, the detonating cord is formed by a helical detonating cord with each other

The adjacent coils are located at the center thereof, in the center of which is a sump for the initiator. According to another preferred embodiment, the detonating cord is formed by a dumbbell detonator arranged along the sump for the initiating means. According to a further preferred embodiment, the initiator bodies are formed by rod-shaped lightning rods, which are arranged in the longitudinal direction of the wells in a circle around the well, the adjacent detonating rods contacting each other. According to another preferred embodiment, the initiator bodies are formed by rod-like lightning rods arranged in the longitudinal direction of the well in a circle around the well, the adjacent lightning rods being spaced apart.

All these designs are simple, affordable and reliable.

To reliably ensure the initiation of the charge, it is preferred that the detonating cords have a total explosive charge weight of at least 2 g.

and?

Overview of figures in the drawing

The invention is schematically shown in the drawing, wherein FIG. 1 shows a longitudinal section through a charge with an initiating body formed by a helical lightning bolt with mutually contacting threads, FIG. 2

Fig. 3a is a longitudinal cross-sectional view of a charge with an initiating element formed by a helical lightning bolt with spaced-apart threads; Fig. 3b is a cross-sectional view of a charge with initiating bodies formed by a system of interconnecting rods of detonating rods; rod-shaped detonating cords.

DETAILED DESCRIPTION OF THE INVENTION

3 (1

The INI melt charge or a molten TNT mixture with pentrite or hexogen or octogen or other additives comprises a base body 1 which is formed by casting a TNT melt or molten TNT mixture with pentrite or hexogen or with octogen or other additives.

The base body 1 is provided with a sump 2 for an initiator which is inserted into the sump 2 only when the charge is being prepared for operation, and which may consist, for example, of a standard detonator No. 8 to 12.

At least one initiator body is received in the base body. At least one initiator body 40 sec is formed by the lightning bolt 3, wherein at least a portion of the surface of the lightning bolt 3 forms at least a portion of the surface of the sump 2 for the initiator. The detonating cord 3 has a total explosive charge weight of at least 2 g.

In the exemplary embodiment illustrated in FIG. 1, the initiator body is formed by a spiral lightning bolt at 30 sc interconnecting adjacent threads, at the center of which is a well 2 for the initiator. The walls of the detonating cord 30 on the inner side of the thread of the detonating cord 30 form part of the wall of the sump 2 for the initiator.

In the embodiment shown in FIG. 2, at least one of the initiator bodies is formed

The spiral lightning bolt 31 is spaced apart from one another by adjacent spirals, in the center of which is located a sump 2 for the initiator. The walls of the detonating cord 31 on the inside of the threads of the detonating cord 31 form part of the wall of the sump 2 for the initiator.

ί

In the embodiment (not shown), at least one of the initiator bodies is formed by a rod-shaped lightning rod 32 which is situated along the initiator well 2, and part of the wall of the lightning bolt 32 forms part of the wall of the initiator well 2.

In the embodiment shown in Figs. 3a and 3b, the initiator bodies are formed by rod detents 32 arranged in the longitudinal direction of the receptacle 2 in a circle around the receptacle 2, the adjacent detents 32 contacting each other and forming part of the surface of the rod detents 32 surface of the pit 2.

In the embodiment shown in Figs. 4a and 4b, the initiator bodies are formed by rod detents 32 arranged in a longitudinal direction of the well 2 in a circle around the well 2. adjacent detents 32 are spaced apart and form part of the rod surface surface on the side adjacent the well 2. detonators 32 part of the pit surface 2.

In the embodiment (not shown), the at least one initiator body is formed by an otherwise arranged lightning rod 3, wherein part of the surface of the lightning bolt 3 forms part of the surface of the well 2.

Claims (6)

PATENT CLAIMS 1. A charge of TNT or of a mixture of TNT with pentrite or hexogen or with oclogen or other additives which comprises a base body of TNT or a mixture of TNT with pentrite or 25 with hexogen or oclogen or other additives, which is provided with a sump for the initiator, in the vicinity of which at least one initiator element is located, characterized in that it is in the base body. characterized in that at least one initiator body is formed by a lightning rod (3, 30, 31, 32), wherein at least a portion of the surface of the lightning bolt (3, 30, 31, 32) on the side adjacent to the sump (2) ). Cartridge according to claim 1, characterized in that. that detonating cords ( 3) is formed by a spiral lightning bolt (30) with adjacent threads in contact with each other, in the center of which is located a sump (2) for the initiating means. Cartridge according to claim 1, characterized in that. 3. The method according to claim 1, wherein the detonating cord (3) is formed by a spiral detonating cord (31) with spaced apart adjacent threads, in the center of which the sump (2) for the initiating means is situated. A cartridge according to claim 1, characterized in that the detonating cord (3) is formed 4o a rod lightning rod (32) arranged along the sump (2) for the initiating means. The charge according to claim 1, characterized in that the initiating bodies are formed by rod detents (32), which are arranged in the longitudinal direction of the detent (2) in a circle around the detent (2), the adjacent detonators (32) contacting each other. A cartridge according to claim 1, characterized in that. 2. The method according to claim 1, wherein the initiating bodies are formed by rod-shaped detonators (32) arranged in the longitudinal direction of the well (2) into a circle around the well (2), the adjacent detonators (32) being spaced apart. Cartridge according to any one of claims 1 to 6, characterized in that all the detonating cords (3, 30, 31, 32) have a total explosive charge weight of at least 2 g.