RU24879U1 - CHECK DETONATOR FOR INDUSTRIAL EXPLOSION - Google Patents

Description

The utility model relates to intermediate checkers-detonators for industrial blasting, including that it is intended for use in the non-electric initiation system of SINV, Nonel, and also from electric detonators, detonator caps and detonating cords. It is used for reliable and safe initiation of borehole and other charges of low sensitivity industrial explosive materials (VM), including hot explosives with a temperature when loading wells no more than 85 ° C, during blasting on the earth's surface in all limaticheskih areas RF, CIS and other countries at temperatures from minus 50 to plus 50 ° C.

Known pressed waterproofing TNT rectangular blocks with a central channel OST 84-1367-76, used as a VM for seismic and other types of geophysical work on the earth's surface, as well as intermediate detonators when conducting open blasting of mountain and non-rock nature.

OST 84-411-80 are known, pressed hydroisolated TNT, TNT-hexogen checkers-detonators with a central channel of the following types:

- TG - 500 - molten TNT-hexogen (hexolitic) for blasting in wells of any water cut with an unlimited term of charges in water.

Known TNT-RDX checker THF-850E, containing a through channel and a nest, the inlets of which are connected by a recess Certificate for Utility Model No. 3642 dated 12/27/95, class. 6 F 42C 1/06.

To increase the mechanical strength of the checkers, the TGF-850P checkerboard is known, which contains a through channel and a socket, the inlets of which are connected by a recess, made by pouring mixed explosive material into a shell made of a polymeric material, having rounded edges that extend beyond the end parts of the product and two ring protrusions on cylindrical surface Certificate for utility model No. 12238 of 06/03/99, class. 6 F 42 C 1/06.

Practically for similar purposes, the detonator checker is known. Utility Model Certificate No. 13091 dated 10.26.99, class 7 F 42D 1/00, having a socket and a through channel, the inlet openings of which are connected by a recess, and made by pouring from a mixed explosive material that includes TNT , which is equipped with a plastic shell on the side and lower end surfaces with the exception of the excavation area, and the side surface of the checker has deviations from the cylindrical shape fixing the shell on the checker.

The closest utility model (prototype) of the same purpose to the claimed utility model according to the totality of features is a detonator bomb containing an explosive material having a through channel and a socket, the inlet openings of which are connected by a recess, and containing a shell (body) of polymer material having rounded inside the edges that go to the end parts of the product and two annular protrusions on a cylindrical surface. Utility Model Certificate No. 16680 of July 3, 2000, class. 7 F 42 C 1/06.

However, at a temperature of 80 ... 85 ° C, at which wells are loaded with hot VMs, explosive material is smelted (it flows out of the bottom of the detonator plate). In the well, the detonator block is located with the end face, where there is a recess, down.

In the proposed checker-detonator for industrial blasting, containing explosive material having a through channel and a socket, and including a housing made of polymer material, from the end where the socket is located, the checker is provided with a concave bottom made of polymer material in which two holes are made, one the hole matches the channel hole, and the other hole matches the hole in the socket.

The concave bottom of the polymeric material eliminates the noted drawback, since the end face of the VM is completely closed by the bottom of the polymeric material.

On the side of the nest, the saber contains pentolite as an explosive material (cast mixture of TNT 25 ... 70% and TENA 75 ... 30%) in height above the nest by an amount equal to 3-30 mm, and the rest of the slug as explosive The material contains TNT. However, pentolite is of great value.

To reduce the cost of the model from the side of the nest, the checker contains hexolite as an explosive material (cast mixture of TNT 25 ... 70% and RDX 75 ... 30%) 3–30 mm higher than the nest, and the rest of the checker contains TNT as an explosive material. However, the TNT melt hardens for a long time.

To reduce the solidification time, the checker contains pentolite or hexolite as its explosive material over its entire height.

As an explosive material, a checker contains a known composition, which reduces the time spent on research.

To increase the safety of operation of the detonator blocks from the end, where there is only an opening of the through channel, the block is equipped with a disk made of paper or cardboard, or polymeric material, or rubber, which is made with an opening coinciding with the channel opening.

A detonator bomb for industrial blasting (see Fig.) Is made by pouring explosive material 1 and 5 into a polymer case 2, has a through channel 3 and a socket 4 for a detonator, is equipped with a concave bottom 7 of a polymer material in which two holes are made, at this one hole coincides with the hole of the channel, and the other hole coincides with the hole of the socket.

The thickness of the bottom of the polymer material is equal to 0.4 ... 2.0 mm.

On the side of nest 4, the checker as explosive material contains pentolite or hexolite 1 in height above the nest by an amount equal to 3 ... 30 mm, and the rest of the checker contains TNT 5 as explosive material.

To reduce the solidification time and shrinkage value, the checker contains pentolite or hexolite 1 as its explosive material over its entire height.

As an explosive material, the checker contains a known composition.

From the end, where there is only an opening of the through channel 3, the checker is provided with a disk 6 made of paper or cardboard, or polymeric material, or rubber, which is made with an opening matching the opening of the channel 3.

The start time of smelting VM prototype and the proposed checkers was carried out according to the following method. A metal container was installed in a water bath. Water was poured into the container. Water was heated to a temperature of 80 ... 85 ° C. Then, the checkers were completely lowered into the hot water so that the checker did not touch the bottom and walls of the container. Every 0.5 hours, the test pieces were taken out of the water and visual inspection was carried out. If it was found that at least one drop of VM was separated from the checker (which was taken as the beginning of the melting of the VM), then a further increase in the length of stay of the checker in hot water was stopped.

Drafts start time

Name

Protopip

Suggested Model:

1VM - pentolite (mixture of TNT 25% and TENA 75%) 3 mm higher than the nest, the rest of TNT

2VM - hexolite (a mixture of TNT 70% and RDX 30%) 30 mm higher than the nest, the rest of TNT

3VM - pentolite (mixture of TNT 70% and TENA 30%) over the entire height of the checker

4VM - hexolite (mixture of TNT 25%, RDX 75%) over the entire height of the checker

Start time

smelting VM from

checkers, hour

0.5

2.0

2,5

2.0 2.5

Claims (7)

1. Checker-detonator for industrial blasting, containing explosive material having a through channel and a socket, and including a housing made of polymer material, characterized in that from the end where the socket is located, the checker is equipped with a concave bottom made of a polymeric material in which two holes are made while one hole matches the hole in the channel, and the other hole matches the hole in the socket.  2. Checker-detonator for industrial blasting according to claim 1, characterized in that the thickness of the bottom of the polymeric material is 0.5-2.0 mm  3. Checker-detonator for industrial blasting according to claim 1, characterized in that, on the nest side, the checker as explosive material contains pentolite 3–30 mm higher than the nest, and the rest of the checker contains TNT as explosive material .  4. Checker-detonator for industrial blasting according to claim 1, characterized in that, on the nest side, the checker as explosive material contains hexolite 3–30 mm higher than the nest, and the rest of the checker contains TNT as explosive material .  5. Checker-detonator for industrial blasting according to claim 1, characterized in that the checker as explosive material contains pentolite or hexolite over its entire height.  6. Checker-detonator for industrial blasting according to claim 1, characterized in that the explosive material contains a known composition as an explosive material. 7. Checker-detonator according to any one of claims 1 to 6, characterized in that from the end, where there is only an opening of the through channel, it is provided with a disk made of paper or cardboard, or polymeric material, or rubber, which is made with a hole matching the hole channel.