RU93521U1 - INTERMEDIATE DETONATOR - Google Patents

Abstract

 1. An intermediate detonator comprising a cylindrical body with explosive and a lid with a socket for initiating means, characterized in that at least one additional socket for the initiating means is made on the lid of the intermediate detonator, while the diameter of the lid exceeds the diameter of the cylindrical body, and along the protruding edges the covers are grooves for laying shock wave tubes or wires of electric detonators. ! 2. The intermediate detonator according to claim 1, characterized in that the lid is equipped with an intermediate persistent insert with spring-loaded antennae holding the device in the well, located on its side surface, and an annular bead is installed on the cylindrical surface of the housing to hold the insert. ! 3. The intermediate detonator according to claim 1, characterized in that the lid is equipped with a removable ring with spring-loaded antennae-clips, and an annular bead is mounted on the cylindrical surface of the housing to hold the removable ring. ! 4. The intermediate detonator according to claim 1, characterized in that the cylindrical body and the cover are provided with a locking connection for their mutual fixation.

Description

The utility model relates to the field of blasting and can be used to initiate all types of industrial explosives with all currently used most promising initiation systems, such as an electric detonator or detonating cord.

In recent years, the cost of blasting has increased sharply, due to the use of various equipment for loading wells or holes, various types of industrial explosives (BB), a large number of initiating detonator blocks, as well as electrical and non-electric systems for their initiation. The main way out of this situation may be the use of universal intermediate detonators, which can reduce the cost of work and at the same time unify the very process of loading wells or holes, especially the most labor-intensive ones - ascending ones, while ensuring a guaranteed charge actuation in the well.

Known TNT detonator block T-400G, which is a pressed block with a central channel for four threads of a detonating cord (see OST 84-411-80). The standard T-400G detonator checkers currently cannot provide reliable initiation of borehole charges, because have at least two significant drawbacks:

- poor reliability response after a long (for several days) stay in flooded wells;

- the presence in the checker of an industrial explosive (TNT) excludes the possibility of using mechanized disassembly of failed borehole charges.

A known design of a detonator-checker for industrial blasting (see RU No. 8111, Cl. F42B 3/00, 1998), having a through channel and a nest for a capsule and containing an additional charge from a powerful explosive in the bottom zone of the nest. Due to the powerful bottom charge, the likelihood of undermining the well increases.

The main disadvantage of the known technical solution is to increase the complexity of the design of the checker-detonator.

In addition, in the event of failure of a well blasting, the possibility of using mechanized disassembly of failed well charges is excluded.

A known design of a detonator-checker for industrial blasting (see RU No. 2213321, Cl. F42В 1/04, 2003), including a charge of an explosive substance of predominantly cylindrical shape with a through channel for placement of downhole signal conductors and two blind holes for two capsule means initiation.

The implementation of an additional blind hole for the second capsular initiating means in the detonator block allows you to connect two threads of the shock wave tube of modern initiation systems to it or place two electric detonator capsules in the blind holes, and the absence of a charge from a powerful industrial explosive allows the mechanical dismantling of failed borehole charges.

The main disadvantages of the known solutions are:

- insufficient reliability of double duplication operation for initiation of borehole charges, especially when they are stored for a long time in heavily flooded wells;

- fixing the detonator checkers on the wires with the caps of the electric detonators or on the shock wave tubes, which can lead to their breakage.

Closest to the claimed technical solution is the design of the intermediate detonator (see RU No. 2333452, CL. F42B 3/00, 2008), containing a cylindrical body with explosive and a cover with a socket for means of initiation. Thanks to the case, the explosive is more reliably protected in comparison with shell-free detonator blocks.

The main disadvantage of the known solution is the lack of response reliability associated with the lack of duplication of means for initiating a borehole charge.

The objective of the proposed technical solution is to eliminate the above drawback.

The indicated problem in an intermediate detonator containing a cylindrical body with explosive and a cover with a socket for initiating means is solved by the fact that at least one additional socket for initiating means is made on the cover of the intermediate detonator, while the diameter of the cover exceeds the diameter of the cylindrical body the edges of the lid are grooves for laying shock wave tubes or wires of electric detonators.

The specified embodiment of the intermediate detonator allows, depending on the complexity and water cut of the well, to install an additional second, third and subsequent detonator caps or shock wave tubes, placing them in blind holes in the lid, and placing wires or shock wave tubes suitable for them in the grooves the edges of the lid.

To fix the intermediate detonator in the well, the lid is equipped with an intermediate persistent insert with spring-loaded antennae holding the device in the well, located on its side surface, and an annular bead is installed on the cylindrical surface of the body to hold the insert.

For reliable connection of the cover with the cylindrical body, the cylindrical body and the cover are provided with a locking connection fixing their relative position relative to each other.

The inventive intermediate detonator is shown in Fig.1-4.

Figure 1 shows the design of the inventive device with a removable cover and a thrust insert equipped with spring tendrils that fix the device in the well. Figure 1 presents: 1a is a General view, 1b is a view from the side of the lid, and 1c is a section AA. The device contains: a plastic cylindrical body 1, which is filled in the factory BB (not shown in the figures BB), on which a removable cover 2 is installed. It is mounted on the intermediate insert 3 with spring-loaded antennae-clips 4. In the cover 2 there are blind holes 5 for means initiation and grooves 6 for laying wires or shock wave tubes.

Figure 2 presents the design of the thrust insert: 2A is a side view, 2b is a top view and 2b is a section B-B.

Figure 3 presents the design of the inventive device before assembly: 3A - cover 2 in section; 3b is a sectional view of a housing 1 and 3c is a sectional view of a thrust insert 3. A gripping collar 7 is made on the lid 2, and a stop collar 8 is made on the outside 1 for fixing the thrust insert 3 and a lock collar 9 for fixing the lid 2. A hole 10 is made in the lid 2, the diameter of which is larger than the diameter of the flange 9, but less the diameter of the shoulder 8, on which the insert is thereby held.

Figure 4 presents the options for a removable cover with two (figa), three (fig.4b) and four (figv) holes 5 for electric detonators and grooves 6 for laying wires or shock wave tubes.

The device is assembled in the factory: a specified number of explosives are placed in the housing 1 (Fig. 3), a thrust insert 3 and a cover 2 are put on, which, with its gripping shoulder 7, is securely fixed to the shoulder 9.

Charging the ascending well using the inventive intermediate detonator is as follows. Electrodetonators are installed in blind holes 5, placing wires from them into grooves 6 at the edges of cover 2. An intermediate detonator with electric detonators installed is inserted into the hose of the charging machine and it is lifted to the stop of the well. Due to the antennae 4, the device itself is fixed in the well, and an industrial explosive is pumped into the well through the hose of the charging machine. As the explosives enter the well, the hose is gradually pulled out of it. Thus, the explosive well is completely filled, and at its output, the existing wires for connecting the electric detonators can only be connected to the blasting machine.

Thus, the claimed device of the intermediate detonator allows you to technologically install it in the well using the hose of a charging machine, fill the well BB and ensure high reliability of the charge in the well of any water cut.

Claims (4)

1. An intermediate detonator comprising a cylindrical body with explosive and a lid with a socket for initiating means, characterized in that at least one additional socket for the initiating means is made on the lid of the intermediate detonator, while the diameter of the lid exceeds the diameter of the cylindrical body, and along the protruding edges the covers are grooves for laying shock wave tubes or wires of electric detonators. 2. The intermediate detonator according to claim 1, characterized in that the lid is equipped with an intermediate persistent insert with spring-loaded antennae holding the device in the well, located on its side surface, and an annular bead is installed on the cylindrical surface of the housing to hold the insert. 3. The intermediate detonator according to claim 1, characterized in that the lid is equipped with a removable ring with spring-loaded antennae-clips, and an annular bead is mounted on the cylindrical surface of the housing to hold the removable ring. 4. The intermediate detonator according to claim 1, characterized in that the cylindrical body and the cover are provided with a locking connection for their mutual fixation.