RU31440U1 - Action for the explosion of industrial explosives - Google Patents

Description

Action for the explosion of industrial explosives

The utility model relates to fighters designed to initiate borehole and other charges of insensitive industrial explosives, including granular, emulsion and water-containing ones, with temperatures when loading wells up to 85 ° C, during blasting in all climatic regions of Russia and the CIS countries.

Action - an explosive cartridge (explosive) or part of the explosive charge connected to the initiator of the explosion (1), which can cause detonation of a hole or borehole charges from low-sensitivity industrial explosives. The militants' designs are distinguished by the type of detonator checker (intermediate detonator) and the type of blast initiator providing stable detonation of the intermediate detonator.

It is known to use for initiating an intermediate detonator non-electric initiation systems of the type "Edilin," Nonel, "SINV, detonating cords or electric detonators of various types.

It is known to use militants from extruded or cast hydroisolated TNT, TNT-hexogen checkers-detonators with a central channel (2,3), which are initiated from a detonating cord or from a detonator capsule, as intermediate detonators. Known checker-detonator made of a mixture of 50-70 wt.% TNT and 50-30 wt.% Highly dispersed heating elements, poured into a housing made of polymer material (4), which contains a through channel and a socket for mounting the initiators of the explosion. However, fighters made on their basis have an increased danger, insufficient reliability when used, since the surface of the initiators of the explosion is not protected from external influences, which often leads to failures when initiating borehole charges from explosives.

Known checker-detonator made of bulk explosives placed in a sealed polymer case in the form of a cylindrical container with a wall thickness of 0.2-0.8 mm and a lid with a thread for connection with a cylindrical container; a groove is made on the surface of the cylindrical container to accommodate the initiators of the explosion, for example, a detonating cord, or a non-electric detonator with a shock wave tube, or an electric detonator; on the side

F42D1 / 04

The surface of the cylindrical container is made of annular grooves for fasteners, for example, rubber rings (5).

It has been experimentally established that rubber rings as fasteners for explosion initiators do not provide sufficient reliability of their fixation and fastening with an intermediate detonator, which can lead to failure of detonation or incomplete detonation of an explosive composition used to fill the case of an intermediate detonator. In addition, the location of the initiators of the explosion on the outer surface of the polymer casing without covering them from external influences does not provide adequate safety in the process of loading wells.

The technical task of creating a utility model was to increase the efficiency of blasting operations by increasing the reliability of combining the initiators of the explosion with an intermediate detonator, increasing the safety of use, expanding the raw material base and field of use.

The technical problem was solved by the development of an action movie, including a hollow thin-walled cylinder made of a polymeric material, for example polyethylene, with 4 hemispherical protrusions equally spaced from each other on the inner surface of the cylinder, located at a height corresponding to the lower annular groove of the polymer body of the intermediate detonator, with 4 diametrically arranged R-shaped end-to-end end cutouts connected in pairs with a jumper with spikes on its outer and inner surfaces; inside which the polymer body of the intermediate detonator is inserted, made with a cumulative bottom recess, filled with a loose or plastic highly sensitive explosive, covered by a lid through a gasket, and explosion initiators placed in the longitudinal lateral grooves of the polymer case, so that the hemispherical protrusions of the cylinder enter the lower the annular groove of the polymer shell of the intermediate detonator, and the internal spikes of the jumper of the R-shaped end cutouts of the cylinder press ini explosion cytors in longitudinal grooves to the body of the intermediate detonator.

A utility model is illustrated in FIG. 1, 2, 3, 4,5,6.

In FIG. 1 shows a view of a hollow thin-walled cylinder (in section), where

4- jumper;

5- longitudinal tenon outer;

6-longitudinal spike internal.

In FIG. 2 is a view of a thin-walled cylinder assembly with an intermediate detonator (Fig. 2a-cylinder is mounted on the polymer body of the detonator with R-shaped cuts down, Fig. 2b-cylinder is mounted on the body with R-shaped cuts up), where

7-case cover;

8-thin-walled cylinder;

9-polymer case of the intermediate detonator;

10-gasket-seal;

11-explosive industrial substance;

12-adhesive tape;

13-longitudinal side groove;

14-ledges;

15-ring grooves;

16-cumulative excavation.

In Fig. 3, 4, an action movie is shown consisting of an intermediate detonator 9 and an explosion initiator — a detonating cord 17 inserted into the hollow polymer cylinder 8. The intermediate detonator can be combined with the detonating cord in different ways. Fig. 3 - an intermediate detonator is fixed on the loop 18 of the detonating cord (Fig. 3a), passing along the side groove, the bottom of the body; to the second lateral groove, the ends of the detonating cord are tied into a knot, placed in an annular groove (Fig. 3b), the position of the detonating cord in the grooves is fixed by the internal spikes of the cylinder jumper; the free ends of the detonating cord exit through the R-shaped end cuts; Fig.zv - action movie assembly. Figure 4 - loop 18 of the detonating cord 17 passes through one of the R-shaped end cutouts (figv); the remaining operations are similar to FIG.

In FIG. Figure 5 shows an action movie consisting of an intermediate detonator, an initiator of an explosion — two electric detonators with waveguides inserted into a hollow polymer cylinder. Assembly scheme: one electric detonator 19 is placed in the side grooves, the waveguides 20 pass along the side groove and the bottom of the housing (Fig. 3a). The assembled fighter is inserted into a thin-walled cylinder, the internal spikes of which press the electric detonators to the body, and the waveguides pass through the R-shaped end cuts to the outside.

In FIG. 6 shows an action movie consisting of an intermediate detonator 9 and an explosion initiator — two EDJI-type detonators connected by a wire inserted into a hollow polymer cylinder. The method of fixing the detonator type EDZI: two detonators, in the holes of 21 ferrite rings of which an explosive wire is passed, are laid down in the side grooves of the case with ferrite rings, looped around the ring grooves with loops of the explosive wire (fig. pressed electric detonators to the groove of the case. Thin-walled cylinder can be turned through the cutouts to the housing cover (Fig. BB) or to the bottom (Fig. BB). The gunman is lowered into the well on an assembly blasting wire of electric detonators.

The action must be located in the well so that the cumulative bottom excavation coincides with the direction of propagation of detonation in the explosive charge.

The order of manufacture of the fighter: after filling the body 9 with explosive 11, the neck of the body is sealed with tape 12, a gasket is installed 10 and the neck of the body is closed by a cover 7. Cylinder 8 is mounted on the body 9 so that the hemispherical protrusions 2 of the cylinder are in the annular groove 15 of the body 9, which prevents axial movement of the cylinder along the body. The longitudinal internal spikes 6 of the cylinder should be opposite the longitudinal groove 13, in which the initiators of the explosion are located. Longitudinal spikes located in diametrically opposite directions fix and hold the initiators of the explosion from falling out and prevent the cylinder from moving relative to the body of the intermediate detonator in the radial direction.

The installation of the gasket-seal 10 between the cover 7 and the neck of the housing further increases the tightness of the housing. The groove, made in the form of a continuous recess, extending along the generatrices of the cylindrical part of the body and the bottom, serves not only to place the initiators of the explosion (detonating cord, non-electric detonator with a shock wave tube, electric detonator), but also serves as an additional cumulative excavation along with the bottom cumulative notch, thereby increasing the effectiveness of the action movie.

production base of intermediate detonators and fighters based on them. A sealed polymer detonator body inserted into a thin-walled cylinder provides high explosion safety and reliability of the action movie when breaking rocks of any strength in a wide temperature range of application (from minus 60 to 85 C) when loading wells with any explosives, including hot ones; and also allows differentially designing blasting depending on the strength and watering of rocks, such as those used for loading wells of industrial explosives.

The use of militants with a large contact surface when initiating low-sensitivity industrial explosive mixtures makes it possible to ensure a steady state of their detonation due to the high detonation pressure, which increases with an increase in the energy intensity of the explosive aggregate of the intermediate detonator. The presence of bottom and lateral cumulative recesses of the intermediate detonator contributes to the appearance of an additional lateral initiating pulse in the direction perpendicular to the propagation of detonation, while the relative detonation pressure in the axial direction is 1.5-2 times higher than that of the standard T-400G detonator. The initiation of borehole charges by the proposed fighter is accompanied by stable high-speed axial detonation, in contrast to detonation initiated by a cylindrical TNT block acting in the radial direction with a front extending at an angle to the axis of the borehole.

Examples of the proposed action movie model are given in the table.

Table - characteristics and properties of fighters.

The claimed ultimate action movie model provides the main technical result:

reliability of the connection of the explosion initiator with the intermediate detonator

due to them in the hollow thin-walled cylinder proposed

designs:

safe, high-detonation explosive action

substances for estimates of additional sealing of the intermediate housing

expanding the raw material base for the production of fighters through the use of bulk and plastic explosives with increased sensitivity to the initiating impulse; the use of a wide range of explosion initiators;

expanding the scope of the proposed militants.

The proposed design of the action movie can be made at the place of blasting; the case of the intermediate detonator can be filled with explosive both at the manufacturer of the explosive equipment and at the explosive preparation centers of organizations conducting blasting operations. The proposed fighters were tested in quarries when initiating borehole charges from industrial explosives (igdanite, granulite, granulotol, burning explosives) with positive results: complete detonation of borehole charges, failures and incomplete detonation were not detected.

Sources of information

1 V.I. Gushchin, "Explosive reference book on a quarry," Nedra, M, 1971, p. 117

2OST 84-1366-76

3OST 84-4 I-80

4 Patent of Russia No. 2177927

5 Russian patent application No. 2002104115 of 02.20.02.

General manager

Utility Model Formula

1 Action, including an intermediate detonator, consisting of a polymer case with longitudinal side grooves, annular grooves filled with explosive, closed by a lid, and an explosion initiator, characterized in that it further comprises a hollow thin-walled cylinder made of a polymeric material, for example polyethylene, with 4- me hemispherical protrusions on the inner surface of the cylinder, equidistant from each other, located at a height corresponding to the lower annular groove of the polymer casing of the intermediate a toner, with 4 diametrically located R-shaped end-to-end end cutouts connected in pairs with a jumper with spikes on its outer and inner surfaces; inside which the polymer body of the intermediate detonator is inserted, made with a cumulative bottom recess, filled with a loose or plastic highly sensitive explosive, covered by a lid through a gasket, and explosion initiators placed in the longitudinal lateral grooves of the polymer case, so that the hemispherical protrusions of the cylinder enter the lower the annular groove of the polymer housing of the intermediate detonator, and the inner spikes of the jumper of the R-shaped end cutouts of the cylinder press in tsiatory explosion in the longitudinal grooves in the housing intermediate detonator.

2 Action under item 1, characterized in that it contains as an initiator of the explosion detonating cord, electric and non-electric detonators.

CEO - G. .t Cantor

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Claims (2)

1. Action, including an intermediate detonator, consisting of a polymer case with longitudinal side grooves, annular grooves filled with explosive, closed by a lid, and an explosion initiator, characterized in that it further comprises a hollow thin-walled cylinder made of a polymeric material, such as polyethylene, with four equidistant from each other with hemispherical protrusions on the inner surface of the cylinder, located at a height corresponding to the lower annular groove of the polymer casing of the detonator, with four diametrically located R-shaped through-end end cut-outs, connected in pairs with a jumper with spikes on its outer and inner surfaces, into which the polymer body of the intermediate detonator is inserted, made with a bottom cumulative recess filled with a loose or plastic highly sensitive explosive that is covered by through the gasket-seal, and the initiators of the explosion, placed in the longitudinal lateral grooves of the polymer body, so that the hemispherical Such cylinder protrusions enter the lower annular groove of the polymer case of the intermediate detonator, and the internal spikes of the lintel of the R-shaped end cutouts of the cylinder press the initiators of the explosion in longitudinal grooves to the body of the intermediate detonator. 2. Action under item 1, characterized in that it contains as an initiator of the explosion detonating cord, electric and non-electric detonators.