JPS5845189A - Electric detonator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to an electric detonator for industrial explosives.

Conventionally, the composition of electric detonator fire * fist is 1 ignition powder, 1Ii detonator
It consists of 6 and an additive, and the method is to use the ignition of one igniter to cause the detonator to detonate, and to use this energy to bomb the additive. In other words, in the case of conventional electric detonators, the existence of electric detonators was inconceivable without a detonator. However, since explosives easily cause bombs with a small amount of energy, safety issues in their production and bottle handling have always been a bottleneck, resulting in many serious accidents. In addition, there are fewer troubles caused by the original pressure development of the detonator in electric detonators during consumption (the Ministry of Detonator Manufacturing Technology W should manufacture and provide safe electric detonators that do not use detonators with high sensitivity to detonators, if possible). has been Choto's dream.

As a result of intensive research from the viewpoint of 5'rL, the present inventor has made extensive efforts to improve the electric detonator in the above situation. An electric detonator that does not have the above-mentioned problems can be obtained by filling a gun with a charge and using the deflagration energy of this propellant to fly one piece and collide with the charge, leading the charge to a detonation. The present invention was completed based on this discovery.

That is, the present invention is an electric detonator for industrial explosives, which consists of one point, an ignition part consisting of a propellant, a porcelain body that flies at high speed due to the propellant, and an attachment aS that explodes upon collision with the propellant.

The present invention will be explained below with reference to the drawings.

tIAiIl is a rain interruption diagram showing an example of the electric detonator of the present invention. In 1, 1 is the tube body, 2 is the loading agent, 3 is the integral body,
4 is the support, 5 is the propellant, and 6 is N! ! A core wire, 7 is an ignition powder, and 8 is an embolus; a charge 2 is pressurized into the inner bottom surface of a tube 1; an air space 1I9 is provided above the charge 2, and a rigid body 3 is supported by a support 4; Fixed and fired 5 in contact with the upper part of the unit 3
is loaded, and the tube l is inserted with the embolus 8 so that the ignition lI7 provided at the end of the leg core wire 6 is placed inside the propellant 5.
It is a fixed structure. By having such a structure.

When the igniter 7 is ignited, the firing system deflagrates, and this deflagration energy causes the rigid body to fly and collide with the charge, causing the charge to detonate.

The tube body used in the present invention is made of materials commonly used as electric detonators, such as copper, iron, aluminum, etc., and its diameter and wall thickness are not particularly selected.

As additives, Penslit and Tetryl are used.

Known materials such as Hekinuge 7 can be used singly, in combination, or in two layers.

As shown in the examples, it is most preferable to load the additive at a compression pressure of 25 oLy/dii degrees in the bottom layer of the tube and as much as possible in the upper layer, but depending on the conditions of the ceramic body and the firing system. Depending on your choice, it is not always necessary to stick to the above.

The rigid body is made of metal materials such as iron alloys such as iron copper and stainless copper, copper alloys such as copper and brass alloys, aluminum and di-3
Most metals can be used, including aluminum alloys such as -2 Lumin. As for the shape, it is easy to use a cylindrical shape that is easy to process for mass production. V if it is a processed product, such as a cast iron skin.
Good finish (50~took).

Although the other surface conditions of the rigid body are not selected as IF#, it is desirable that one circumferential image be easily fixed to the inner wall of the tube and easily moved within the tube.

The fixation of the porcelain to the pipe can be achieved either by using a rigid body as is with adhesive, or by attaching an elastic ring to a part of the outer periphery of the unit, and then applying friction between the ring surface and the inner wall of the pipe. The tube may be held and fixed by resistance, or it may be fixed by providing a support around the entire circumference or part of the inner wall of the tube at the integral fixed position.

The fixed position of the rigid body is determined by the conditions of the WIa body 9 propellant and charge, but the flight speed within the tube is 150 m.
/S or more is desirable.

The propellant that serves as the energy source for making a rigid body fly is known smokeless powder, namely single base smokeless powder, double base smokeless powder, and triple base smokeless powder, which are much safer than explosives, and It is used because it does not require original pressure development and has excellent ignition sensitivity.

A charge of smokeless powder is loaded against the integral upper surface, either loosely charged or loaded, up to the embolus gIA.

The ignition charge may be made by any known method, but for example, the ignition charge which is attached by drilling an ignition ball with a leg wire core 〇m5tiit attached to the embolus into the firing chestnut loading section may be made of Rodan lead. , trinitroresorcin lead, etc. are used.

Implementation 911 Length of steel pipe body 50~60cm, inner g! 6.2- Add 0.4 g of Venislit or Tetryl as an additive to 2
The original tube is divided into 2501 Lp/rx and filled with 2501 Lp/rx, and the integral material and 111
Considering the amount of the launch system that is the source of P's flight energy, we prototyped an electric detonator, observed the presence or absence of this blast helmet, and investigated the flight speed of the rigid body.The results are shown in Table 1.In addition, It had a cylindrical shape with a length of 5 sm and an outer diameter of 6.01 mm, and its surface condition was approximately 70 g when fully opened.The propellant, smokeless gunpowder, was loaded in a loose charge state.

Table 1 Actual mHz Length of iron pipe body 50-65cm, inside 416.2wm Medium needle slit 0. ! J is compressed with 2zo peak-, and J!
The upper part of the tube is loaded with 0.29 (Benzulin) to the extent that the drug does not spill out of the tube body, and the flying unit is a cylindrical iron tube that is in contact with the additive agent. The effect of surface finishing was observed. The results are shown in Table 2.

Table 2 Note 1. V finish refers to 50 to 1.00S finish.

2, 9? Finish means 20 to 6.08 finish.

3. The denominator indicates the number of samples tested, and the numerator indicates the number of samples that exploded.

As mentioned above, it is clear from the results shown in Table 2 that the electric detonator of the present invention does not use any of the most dangerous ridges, has a simple structure, and does not increase the safety of II construction and reinforcement. It was named IJ Noh.

[Brief explanation of drawings]

The drawing is a longitudinal sectional view showing an example of an electric detonator according to the present invention. 1- one tube body, 2- one loading system, 3- one porcelain body. 4-1 support, 5-1 shot, 6-1 leg, 7-1 gunpowder, 8--II role, 9-1 void. For patent use [Asahi Kasei Corporation Figure 1-4;

Claims (1)

[Claims] 1. An electric detonator for industrial explosives consisting of an ignition powder part consisting of ignition powder and propellant, a unit that flies at high speed due to the firing INK, and an additive part that explodes when a rigid body collides with it.