RU78300U1 - HIGH POWER DETONATOR CAPSULE - Google Patents

Abstract

The utility model relates to the field of creating means of initiation and can be used in the manufacture of safe detonator caps (KD) necessary for blasting in mining, coal mining, oil production and other industries. Effect: increase the power of the cumulative jet without increasing the mass of explosives. The claimed technical result is achieved due to the fact that the detonator capsule containing a sleeve closed from one end and open from the other, into which a high explosive blasting substance is pressed, and a cup with an initiating explosive is pressed into the sleeve, approximately in its middle, so that about half of the sleeve from the open end is hollow, and the cup from the side of the hollow part of the sleeve has an opening, and the closed end of the sleeve has a cumulative recess, characterized in that the blasting explosive in The additional power is made up of two parts, of which the initially initiated part of the charge is made in the sleeve in the form of a bulge facing the cumulative recess of the sleeve.

Description

Application area

The utility model relates to the field of creating means of initiation and can be used in the manufacture of safe detonator caps (KD) necessary for blasting in mining, coal mining, oil production and other industries.

State of the art

Known capsule-detonator (CD) GOST 6254, which is a sleeve into which the main charge of a blasting explosive is pressed in and initiating a charge of an emitting explosive (IVV), closed by a cup, in the bottom of which a central hole is punched. In the manufacture of an incendiary tube, performed at the place of blasting, a piece of a fire-conductor cord (OS) is inserted into the KD sleeve, after which it is crimped in order to fix the OS.

When igniting, the OS burns at a certain speed until the combustion process reaches the CD. The force of the OSH combustion products through the hole in the cup ignites the initiating charge, which leads to the actuation of the CD and the initiation of the explosive circuit element connected with it (explosive cartridge, detonator plate, detonating cord, etc.).

Known patent RU 2074373 for a detonator capsule containing a sleeve with a central hole in the bottom, a cup and charges of the primary and secondary explosive, characterized in that the primary charge has a through hole coaxially with the hole in the sleeve and the diameter equal to it, the ratio of the diameter of the hole in the bottom of the sleeve to the inner diameter of the sleeve is in the range of 0.2 0.3, and the height of the primary charge layer is 0.5 of the inner diameter of the sleeve.

The prior art patent RU 2161769 for Capsule detonator based on blasting explosive, containing a hollow body with a closed bottom, in which the main charge of blasting explosive is placed,

an intermediate shell with an initiating and initiated charge from a secondary explosive, an igniter element, an opening is made in the end face of the intermediate shell from the igniter element, characterized in that the initiating charge is made in the form of a separate unified element that contains a primary initiating charge, which consists from a charge of a coarse-grained high-explosive blasting explosive and a charge of a coarse-grained high-explosive blasting explosive ETS lower density, and charge of the secondary initiator consisting of high explosive having a density of not more than 1.3 g / cm3, located in the additional shell with an opening on the primary side booster charge belongs to the intermediate shell. Known patent RU 2215975 for a detonator capsule for blasting, containing a sleeve in which the main and initiating charges and a cup with a hole punched in the bottom are placed, covering the initiating charge from the side of the sleeve barrel, characterized in that it contains a spacer sleeve installed in the sleeve under tight fit over the cup from the side of the sleeve of the sleeve.

The disadvantage of all known analogues is the limited explosive power of the cumulative detonator jet, depending on the volume of explosive in the sleeve. To increase power, it is necessary to increase the mass of charge.

Effect: increase the power of the cumulative jet without increasing the mass of explosives.

Brief Description of the Drawings

Figure 1 shows the design of the relay, where 1 is the sleeve, 2 is the cumulative recess in the sleeve, 3 is the cup, 4 is the hole in the cup, 5 is the primary explosive, 6 is the primary initiating part of the secondary explosive, 7 is the secondary initiating part of the secondary explosive, 8 - protrusion of the primary part of the secondary explosive, facing the cumulative recess of the sleeve.

Utility Model Implementation

The claimed technical result is achieved due to the fact that the detonator capsule,

containing a sleeve closed from one end and open from the other, into which a blasting explosive of increased power is pressed, and a cup with an initiating explosive is pressed into the sleeve, approximately in its middle, so that about half of the sleeve from the open end is hollow, the cup has a hole on the side of the hollow part of the sleeve, and the closed end face of the sleeve has a cumulative recess, characterized in that the high explosive blasting material is made up of two parts, of which the primary part of the initiating charge is formed in the sleeve-shaped convexity facing side cumulative sleeve recess. The hole in the cup is covered from the inside with a thin silk or nylon mesh.

Device essence

A detonator capsule (CD) (see Figure 1), containing a sleeve (1), closed from one end and open from the other, into which a high explosive blasting explosive (BB) is pressed in (6, 7) (for example, tetryl, hexogen or ten), and in the sleeve (1), approximately in its middle, a cup (3) with an initiating explosive (5) is pressed in (for example, in the form of explosive mercury or lead trinitroresorcinate, or with lead azide). About half of the liner from the open end is hollow. The cup (3) on the side of the hollow part of the sleeve has a small hole (4), which can be covered from the inside of the cup with a thin silk or nylon mesh that protects the initiating explosive from precipitation from the CD. The closed end of the sleeve (1) has a cumulative recess (2), in the direction of which the detonation pulse is much stronger than in other directions.

In the presence of a detonator capsule, the flame of the fire-retardant cord, which is inserted from the open end of the sleeve (1), passes through the hole (4) of the internal cup (3) of the detonator and ignites the primary initiating charge (5). The latter consists of an initiating explosive, which, when converted, gives an initiating impulse (shock wave). This leads to the detonation of a secondary explosive (6, 7), consisting of a high-explosive explosive of high power. The implementation of high-explosive blasting material consisting of two parts (6, 7), of which the initially initiated part (6) of the charge is made in a sleeve in the form of a bulge (8), facing the cumulative recess of the sleeve,

allows, at the time of initialization of the charge, to enhance the cumulative stream due to the directivity of the explosion of the initially initiated part (6) of the blasting explosive. This is ensured by the fact that the convexity (8) of the initially initiated part of the blasting explosive (6) proceeds in the direction of the cumulative recess (2) of the sleeve, which enhances the detonation momentum in its direction, and therefore enhances the explosive power of the entire detonator as a whole without increasing the mass of the explosive substances.

Claims (2)

1. A detonator capsule containing a sleeve closed from one end and open from the other, into which a high explosive blasting substance is pressed in, and a cup with an initiating explosive is pressed into the sleeve about in its middle so that approximately half of the sleeve is on the open end side - hollow, and the cup from the hollow part of the sleeve has an opening, and the closed end of the sleeve has a cumulative recess, characterized in that the high explosive blasting material is made up of two parts Of which the primary part of the initiating charge is formed in the sleeve-shaped convexity facing the cumulative sleeve recess. 2. The detonator capsule according to claim 1, characterized in that the opening in the cup is covered from the inside with a thin silk or nylon mesh.