JP3329203B2 - Non-powder igniter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-explosive igniter for a non-explosive crushing agent.

[0002]

2. Description of the Related Art Generally, an electric detonator is used to ignite an explosive in an industrial explosive or the like. This electric detonator includes an instantaneous electric detonator and a stepped electric detonator, and has a slightly different configuration. On the other hand, concrete crushers for similar applications include instantaneous igniters for firing and step igniters.

[0003] These primers and igniters convert electric energy stored in a blaster into heat energy on a bridge bridge.
The composition reacts and ignites near the bridge. The primer and the igniter have an ignition ball which is an explosive component, and other compositions also consist of an explosive component. On the other hand, as a non-explosive crushing agent, for example, JP-A-63-319285
And Japanese Patent Application Laid-Open No. 2-204384 are known.

[0004]

The non-explosive crushing agent can be ignited by the primer, but in this case, the following drawbacks occur. The advantage of being composed of non-explosive components is lost. That is, although it is not necessary to obtain a consumption permit when using the non-explosive crushing agent itself, it is necessary to obtain a consumption permit for using the electric tube, and the features of the non-explosive are lost.

[0005] In an ignition device such as an electric detonator whose reaction is completed in a few microseconds, most of the non-explosive crushing agent is blown off before igniting and burning, and cannot exhibit normal performance.
Therefore, as an igniter dedicated to non-explosive crushing chemicals, there is an igniter disclosed in Japanese Utility Model Publication No. 7-11353, which has developed a step ignition igniter composed of a non-explosive component.

This is composed of Al / CuO as the igniting agent and Mg / C ₂ F ₄ as the exothermic agent. However, although it is described as a postponing device, it is not described in detail and has the following disadvantages. Have. The power of the ignition agent Al / CuO is so strong that the pipe is broken before the postponement drug is activated, and as a result, the postponement drug does not burn properly and the postponement time is out of order. There was a disadvantage that it was.

If the igniter is used only for instantaneous firing, the above-mentioned disadvantages are not a problem. From the point of view of users who use non-explosive crushing chemicals,
For crushing while suppressing noise, if there are several types of step igniters with steps such as step detonators, the amount of non-explosive crushing agent required for rock crushing can be sieved for each step. Therefore, it is possible to increase the amount of crushing work per time without increasing crushing vibration and noise.

In general, it is a taboo to use a mixture of different types of electric detonators. This is because the ignition charge used for the electric detonator differs from manufacturer to manufacturer, and thus the ignition sensitivity of the ignition charge differs, so that the possibility of occurrence of a misfire phenomenon becomes very high.
Therefore, when reviewing the igniting charge of instantaneous and step ignition igniters and developing a common igniter for both, and considering various aspects such as material management, handleability, and manufacturing cost, instantaneous and even igniter Since it is better to have the same shape and dimensions as the igniter, it is desired to determine the composition series and structure of the step igniter for this purpose.

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a non-explosive step igniter comprising a non-explosive component dedicated to a non-explosive crushing agent. .

[0010]

According to the first aspect of the present invention, there is provided an igniter tube, and an embolus with a wire bridge which is press-fitted into the igniter tube. At the same time as the igniting charge is filled, an igniting relay is pressurized between the igniting charge and the postponing charge, and the igniting charge is B / BaCrO ₄ = 3 to 12% by weight / 88 to 97% by weight or B / CuO = 8-35% by weight / 65-92% by weight, and the postponing agent is B / BaCrO ₄ = 5% by weight /
95% by weight or Mg / FeSi / BaCrO ₄ = 5 to 1
5% by weight / 5-10% by weight / 75-95% by weight, and the igniting agent is B / Al / CuO = 2-5% by weight / 10%
-20% by weight / 70-90% by weight, and the ignition relay is characterized by B / CuO = 8-35% by weight / 65-92% by weight.

According to a second aspect of the present invention, there is provided the non-explosive step igniter according to the first aspect, wherein the igniter is housed in the igniter cup together with the electric bridge of the embolus with the electric bridge, and the ignition relay and the postponing agent are provided. Is characterized by being housed in a postponed medicine tube. The invention according to claim 3 includes an igniter tube, and an embolus with an electric wire that is press-fitted into the igniter tube. The igniter tube is filled with an igniting agent, a postponing agent, and an igniting agent. An ignition relay is pressurized between the postponing drug and a postponement relay is pressurized between the postponing drug and the ignition powder, and the igniting charge is B / BaCrO ₄ = 3.
-12% by weight / 88-97% by weight or B / CuO = 8-
35% by weight / 65-92% by weight, and the postponing drug is B
/ BaCrO ₄ = 5% by weight / 95% by weight or Mg / Fe
Si / BaCrO ₄ = 5 to 15% by weight / 5 to 10% by weight
/ 75-95% by weight, and the igniting agent is B / Al / C
uO = 2 to 5% by weight / 10 to 20% by weight / 70 to 90% by weight, and the ignition relay is B / CuO = 10% by weight.
/ 90% by weight, and the postponed relay is B / CuO = 8
３５35% by weight / 65-92% by weight, and the composition after the ignition relay agent is characterized in that the composition is compressed in a postponed medicine tube having a postponed drug length part of a fixed length.

According to a fourth aspect of the present invention, in the non-explosive step igniter according to the third aspect, the igniter is housed in the igniter cup together with the electric bridge of the embolus with the electric bridge, and the ignition relay is provided.
The postponed drug and the postponed relay drug are housed in a postponed medicine tube. According to a fifth aspect of the present invention, in the non-explosive step igniter according to the second or fourth aspect, the igniter cup and the postponed medicine tube are made of electrically insulated soft metal. Things.

According to a sixth aspect of the present invention, in the non-explosive step ignition igniter according to the second or fourth aspect, the igniter cup and the postponed medicine tube are integrally formed of electrically insulated soft metal. It is characterized by the following. According to a seventh aspect of the present invention, there is provided the non-explosive stage igniter according to the third aspect, wherein the non-explosive stage igniter is provided with several types of deferred seconds having a constant deferred second time interval by using any one of the following types of postponed drugs. Along with the igniter, between the postponing drug and the igniting drug, it is possible to set any postponing time within the maximum postponing time of each postponing drug by using a postponing relay that has several times faster burning rate than the postponing drug B
/ BaCrO ₄ = 5% by weight / 95% by weight, and Mg / FeSi / BaCrO ₄ = 10% by weight / 5
% / 85% by weight, Mg / FeS
i / BaCrO ₄ = 5% by weight / 5% by weight / 90% by weight.

According to an eighth aspect of the present invention, there is provided the non-explosive step igniter according to any one of the first to seventh aspects, wherein the igniter tube is made of aluminum. According to a ninth aspect of the present invention, there is provided the non-explosive igniter according to any one of the first to eighth aspects, wherein the igniting charge and the igniting charge are granulated products of 12 to 32 mesh.

(Operation) First, the igniting charge is preferably a compound or composition having a low ignition point and a small amount of reactive gas components. Candidates to become igniters in non-explosive compositions include B / CuO compositions, B / BaCrO ₄ compositions, Zr
/ CuO composition Zr / BaCrO ₄ compositions, mono nitro resorcin lead dinitro resorcin lead or the like.

However, the composition containing Zr was excluded from the study because of its high danger at the time of production, and because the resorcinol lead compound involves a chemical conversion step and the like and the unit price becomes high, the study was omitted.
In addition, in the case of the ignition ball method, if it is not a simple composition, it can not be made because of the separation of components when it is made into mud, and the process of attaching a non-explosive ignition ball to the electric bridge line increases the unit price. For this reason, the present invention focused on an igniter other than an ignition ball type.

As a result, it has been found that the B / BaCrO ₄ composition has the best results at present because the B / CuO composition is somewhat powerful and the handling sensitivity is rather high. . On the other hand, B / BaCrO ₄ = 3 to
12% by weight / 88 to 97% by weight has a weak power and a small amount of reactive gas, and has the disadvantage of a low combustion rate among them, but is the best as an ignition charge.

The composition ratio of the composition is B / BaCrO ₄ =
3 to 12% by weight / 88 to 97% by weight is appropriate, and B / BaCrO ₄ = 5% by weight / 95% by weight is the best in terms of ignition sensitivity. The igniting charge, which is a non-explosive component, is
aCrO ₄ = 3 to 12% by weight / 88 to 97% by weight not only has a high thermal ignition sensitivity and a low power but also has an advantage that the reaction gas component is small, and is good as an igniter for the non-explosive stepwise igniter of the present invention. It is.

If the ignition charge cup is made of metal,
B / CuO = 8-35% by weight / 65-9
Since the ignition sensitivity is as high as 2% by weight, it is good as an ignition charge. Among them, B / BaCrO ₄ = 5% by weight / 95% by weight
Alternatively, B / CuO = 10% by weight / 90% by weight is the best in terms of ignition sensitivity. Next, the composition series following the ignition charge was examined.

The composition following the igniting charge is a postponing drug, while the non-explosive postponing composition has a low ignition sensitivity, and the compressed one becomes increasingly insensitive. Therefore, it has been found that a relay medicine is necessary to surely transfer heat energy from the ignition charge to the postponement medicine. This relay agent is referred to as an ignition relay agent, and it is necessary that the ignition agent be a composition that does not cause a sharp decrease in ignition sensitivity even when pressed, and B / CuO = 8 to 35% by weight / 65 to 92% by weight. Was found to be preferable.

The postponed medicine tube has one kind of cross-sectional shape. In order to have several kinds of postponing seconds in this one kind of postponing medicine tube, it is necessary to variously change the kind of postponing drug composition and the postponing drug length. If the length of the postponed drug is shortened, it is necessary to make up for the shortened portion with some other composition, and this other composition is called a postponed relay drug, which requires a fast burning rate. It is. Further, it is preferable that the igniting agent to be disposed next to the postponed relaying agent is one that surely burns and generates a large amount of heat. As a result of repeating various experiments, B / A1 / CuO = 2
-5% by weight / 10-20% by weight / 70-90% by weight is good.

[0022] In this way, intensive studies have been conducted to make each composition a non-explosive composition, and to form a step ignition igniter which does not cause any misfiring even if it fires in series connection with an instantaneous igniter. Thus, the non-explosive igniter according to the present invention has been completed. In order to make the igniter the same as the flash igniter, B / BaCrO ₄ = 5
% By weight / 95% by weight or B / CuO = 10% by weight / 90
% By weight, B / CuO = 10% by weight / 90% by weight as an ignition relay agent, and B / BaCrO ₄ = 5% by weight / 95% by weight as a postponing agent for short-time use, middle seconds Mg / FeSi / BaCrO ₄ = 10% by weight / 5% by weight / 85% by weight for time, and Mg / FeSi /
It was found that BaCrO ₄ = 5% by weight / 5% by weight / 90% by weight was good. Furthermore, as postponed relay drugs,
It turned out that it may be the same as the above-mentioned ignition relay medicine B / CuO = 10% by weight / 90% by weight. The remaining non-explosive composition is an explosive B / Al / CuO = 3 used in a flash igniter.
It has been found that the same as the weight% / 16 weight% / 81 weight% is sufficient.

Conventionally, B / CuO = 25-35% by weight / 65-75% by weight in order to reduce the decrease in ignition sensitivity even when the igniting relay agent and the postponing relay agent are loaded (up to 1700 kgf / cm ² ). Was solved by setting B / CuO = 10% by weight / 90% by weight close to the chemical equivalent ratio. As a result, it was confirmed that the ignition charge was surely transferred from the ignition charge to the ignition charge unless the postponed medicine itself disappeared. It was also found that the burning time of this relay medicine (ignition relay medicine, postponement relay medicine) was 3 msec / mm or less.

Further, a deferred composition suitable for a non-explosive step igniter having several types of deferred seconds is as shown in Table 1 when the pressing pressure is, for example, about 710 kgf / cm ² .

[Table 1] From the above data, if the deferred drug length is set to a maximum of 10 mm and the deferred second time per stage is set to 100 msec, the non-explosive stage starting igniter up to 12 stages and the deferred second time per each stage Is set to 200 msec, it is possible to manufacture up to six non-explosive-stage igniters.

Each of the compositions constituting the non-explosive step ignition igniter according to the present invention is composed of a non-explosive composition, and an igniting charge, a postponing B / BaCrO ₄ = 5% by weight / 95% by weight, and an ignition Relay medicine or postponed medicine B / Cu0 = 10
% By weight / 90% by weight is known in the art,
g / FeSi / BaCrO ₄ = 5 to 15% by weight / 5 to 1
0% by weight / 75 to 95% by weight and ignition powder B / Al / CuO
= 2-5% by weight / 10-20% by weight / 70-90% by weight
Is a novel non-explosive composition, and each composition constituting the igniter has a feature that it is composed of a non-explosive composition.

For reference, Table 2 shows the igniter and igniter composition used in the igniter of the present invention and the sensitivity of the pen slit used as an auxiliary charge for the electric detonator.

[Table 2] In addition, the non-explosive step igniter according to the present invention is characterized in that B / BaCrO ₄ = 5% by weight / 95% by weight is used
Mg / FeSi / BaCrO ₄ = 1
0% by weight / 5% by weight / 85% by weight, and using any one of Mg / FeSi / BaCrO ₄ = 5% by weight / 5% by weight / 90% by weight as a postponement for long seconds In order to enable several types of non-explosive igniters with a certain postponement time interval, a postponement relay with a burning rate several times faster than the postponation drug is used between the postponement drug and the ignition powder. By using a drug, it is possible to set any postponement time within the range of the maximum postponement time of each postponing drug.

The pressing pressure of the postponed drug including the ignition relay agent and the postponed relaying agent is within a range in which the composition to be pressurized is not desensitized by the pressing pressure, and the postponing time is not largely affected by the pressing pressure. Although more pressure variation in less preferred, the value of the compositions of the present invention is preferably 650~1700kgf / cm ^2, thus was uniformly 710kgf / cm ^2. The specific 1 when this pressing pressure is 710 kgf / cm ²
Examples are shown in Table 3.

[Table 3] Furthermore, the non-explosive step ignition igniter according to the present invention uses a soft metal material in which the postponed medicine tube is integrated with the ignition charge cup, so that the destruction of the ignition charge cup portion by the reaction gas pressure due to ignition of the ignition charge. This feature is characterized in that the electric delay is prevented, and consequently the variation in the delay time is reduced, and at the same time, the entire surface of the delay tube is insulated to eliminate electrical defects.

By setting the longitudinal dimension of the non-explosive igniter to be one type, the igniter hole attached to the plastic product cylinder of the non-explosive crushing agent fits regardless of the number of igniters used, and handleability is considered. Things. For this reason, the minimum required amount of the igniting powder (about 0.
9g), but in order to secure the length to secure this amount, the length of the postponed medicine length part of the postponed medicine tube must naturally have the maximum dimension. Was set to 15 mm.

The non-explosive igniter according to the present invention comprises:
In order to improve the ignition sensitivity of the non-explosive step ignition igniter made of the non-explosive composition, the igniting powder and the igniting powder are made into granules of 12 to 16 mesh from the viewpoint of manufacturing workability, while the ignition relay powder, postponing drug, postponing The relay medicine aims to provide a non-explosive step starting igniter as a pressurized product, which has a small variation in delay time.

If the igniter cup portion is weak and is broken before the combustion reaction of the postponement medicine is completed, the reaction gas pressure is rapidly released, so that not only the postponement time is greatly disturbed but also the subsequent negative pressure causes The postponement drug may go out. In order to solve the problem, the inventor of the present invention has devised an ignition power-pull-type postponed drug tube in which the ignition cup and postponed drug tube are made of a sturdy metal.

At this time, another problem newly emerged. The reason is that the gap between the bridge and the postponement tube is so narrow that when a high-energy electric ignition signal is given to the igniter, a discharge occurs between the terminal of the bridge and the postponement tube made of metal, causing a misfire. There is a possibility that this may occur. In order to solve this, the metal postponed medicine tube is treated with alumite as an insulation measure, and its insulation resistance shows a value of 200 to 500 MΩ when the applied voltage is 500 V.

The non-explosive igniter according to the present invention comprises:
By making the exterior (igniter tube) of the non-explosive step ignition igniter a soft metal material of aluminum, the reaction heat and the reaction gas pressure of the ignition powder, which is a non-explosive composition, easily destroy the exterior, and It is intended to improve the reliability of ignition of non-explosive crushing chemicals, and to prevent mistakes with electric detonators even if they have the same shape and similar dimensions as electric detonators. Things.

The non-explosive igniter according to the present invention comprises:
Under the water pressure of a maximum of 5 atm (gauge pressure) by caulking after the embolus with the electric bridge wire is pressed into the exterior for the purpose of imparting water resistance so that it can be used even at the construction site such as the caisson method, etc. It can be used without any problems.

[0034]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments.

FIG. 1 shows an embodiment of a non-explosive step igniter according to the present invention. In the figure, reference numeral 1 denotes an aluminum igniter tube. The igniter tube 1 maintains the shape as an igniter, and may be any soft metal material having good workability. For example, when copper is used, the shape becomes exactly the same as that of the electric detonator. To remove confusion.

An igniter tube 1 made of aluminum is filled with an igniting agent 2 in a portion corresponding to an additive (lowermost portion) of an electric detonator. The ignition charge 2 is B / A
1 / CuO = 3% by weight / 16% by weight / 81% by weight was used. The explosive 2 may be a non-explosive, for example, B / CuO = 8 to 35% by weight / 65 to 92% by weight, A
1 / CuO = 20-25% by weight / 75-80% by weight, M
Even if g / C ₂ F ₄ = 50 to 70% by weight / 30 to 50% by weight, the function of the non-explosive and non-explosive igniter according to the present invention is satisfied. The igniting powder 2 is a non-explosive composition that receives heat from the postponing drug 14 or the postponing relaying drug 15 and breaks the igniter tube 1 to reliably ignite the non-explosive crushing drug.

On the upper part of the ignition charge 2, a total length of about 30 mm
Is provided. As shown in FIG. 2, the ignition charge cup-integrated postponed medicine tube 3 integrally includes an embolus fitting section 4, an ignition charge section 5, and a postponed medicine length section 6. The ignition charge cup-integrated postponement tube 3 can be made of synthetic resin, but a lighter material such as aluminum is better because it can withstand the reaction gas pressure of the ignition charge 7. Here, aluminum A1050 was used.

Further, in the ignition charge cup-integrated postponed medicine tube 3, in the ignition charge section 5, the electric ignition signal does not flow through the electric bridge wire 9, but is consumed for discharge energy, and the ignition charge may not be ignited. Because of this, it is necessary to perform insulation treatment, and as a result, it is anodized. In the igniting charge section 5, an igniting charge 7 and an electric bridge line 9 of an embolus 8 with an electric bridge line are arranged. The ignition charge section (ignition charge cup section) 5 serves not only as an ignition charge container, but also for surely transmitting reaction heat energy to the ignition relay charge 13 and sealing the reaction gas pressure.

The igniter 7 is a non-explosive composition that receives the thermal energy of the electric wire and starts burning. As the ignition charge 7,
B / BaCrO ₄ = 3 to 12% by weight / 88 to 97% by weight or B / CuO = 8 to 35% by weight / 65 to 92% by weight is possible.
/ BaCrO ₄ = 5% by weight / 95% by weight, B / CuO =
It is preferably 10% by weight / 90% by weight, and the composition may be the same as that of the igniter of the flash igniter.

The embolus 8 with an electric bridge wire converts electric energy from the blaster into heat energy and ignites the igniter 7, and as shown in FIG. 3, an electric bridge wire (for example, platinum or the like) is provided at the tip. 9 and has a stepped shape so as to fit into the igniter tube 1. As shown in FIG. 1, the embolus 8 with an electric bridge is connected to the embolus fitting portion 4 of the ignition charge cup-integrated postponed medicine tube 3.
While being pressed into the opening 1a of the igniter tube 1 made of aluminum except for the top portion 10, and wrapped by the igniter tube 1 made of aluminum, and the igniter tube 1 made of aluminum.
The water resistance is improved by forming caulking portions 11 and 12 at two places from outside.

The caulking portions 11 and 12 enhance water resistance,
Seals the reaction gas pressure of the igniter 7 by the action of the plug 8 with the electric wire.
Is what you do. On the other hand, the ignition charge cup integrated postponed medicine tube 3
Is the ignition charge 13 in the granulated state, and the ignition charge 13 is postponed.
In the order of medicine 14 and postponed relay medicine 15, for example, about 710 kg
f / cm ^TwoPressure.

The ignition relay 13 is a non-explosive composition for surely transmitting the thermal energy of the ignition charge 7 to the postponing medicine 14, and is composed of B / CuO = 10% by weight / 90% by weight. The postponement drug 14 is a non-explosive composition for generating a predetermined postponement time, and B / BaCrO ₄ = 5% by weight / 95% by weight.
Or Mg / FeSi / BaCrO ₄ = 5 to 15% by weight /
5-10% by weight / 75-95% by weight.

The postponed relay medicine 15 is a non-explosive composition which is adjusted at a predetermined postponement time by the drug length balance with the postponed medicine 14, and is composed of B / CuO = 10% by weight / 90% by weight. 4 to 6 show modified examples of the ignition charge cup-integrated postponed medicine tube 3. FIG. 7 shows an example in which the ignition charge cup portion 20 and the postponed medicine tube portion 21 are formed as separate members. 8 to 10
9 shows another embodiment of the non-explosive step igniter according to the present invention.

In the embodiment shown in FIG. 1, the caulking portion 1 is provided at two places from the outside of the igniter tube 1 made of aluminum.
Although the case where 1 and 12 are formed has been described, in the present embodiment, a case where the caulking portions 40, 41 and 42 are formed at three places from the outside of the igniter tube 1 made of aluminum will be described. The same elements as those in the embodiment shown in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted.

In this embodiment, the ignition charge cup-integrated extension medicine tube 30 is made of aluminum (for example, Al-1050-0).
Etc.), and the through hole 31 has a large-diameter portion 32 covering the second step portion 7b of the plug-in with an electric bridge line 7
And a small diameter portion 34 that forms the extended medicine length portion 6. Large diameter part 32 and medium diameter part 3
3, the middle diameter portion 33 and the small diameter portion 34 are formed into a tapered portion 35,
36 are provided continuously.

Also in this embodiment, the large diameter portion 32, the tapered portion 35, and a part of the medium diameter portion 33 constitute the embolus fitting portion 4, and the remaining medium diameter portion 33 and the tapered portion 36 form the igniter portion 5. Is configured. The inner and outer surfaces of the ignition charge cup-integrated postponement tube 30 are subjected to alumite treatment in order to increase insulation resistance (about 200 to 500 MΩ / 500 V). In the present embodiment, first, the ignition relay agent 13, the postponement agent 14, and the postponement relay agent 15 are filled, and then, the igniting agent 7 is filled and the electric bridge wire embolus 8 is filled.
The second step portion 7b and the third step portion 7c are put in the large diameter portion 32 of the ignition charge cup-integrated postponed medicine tube 30, and the second step portion 7b is covered with the large diameter portion 32 and the third step portion is formed. 7c is covered with a medium diameter portion 33, and the ignition charge cup-integrated postponed drug tube 30 is brought into contact with the lower end portion of the first step portion 7a of the electric bridge wire embolus 7, and A caulking 40 is formed from the outside, and the ignition charge cup-integrated postponed medicine tube 30 is attached and sealed to the embolus 7 with an electric bridge.

Next, this ignition charge cup-integrated postponed medicine tube 3
The embolus 8 with an electric wire is attached to the opening 1 a of the igniter tube 1 filled with the ignition charge 2 except for the head 10. In this state, caulking portions 41 and 42 are formed on the side and the upper portion of the first step portion 7a of the plug 8 with an electric bridge to improve water resistance. In the present embodiment, the same effect as that of the embodiment shown in FIG. 1 can be obtained. However, in this embodiment, since the swaging portions 40, 41, and 42 are formed at three locations, two swaging portions are provided. Water resistance can be further improved as compared with the embodiment shown in FIG.

[0048]

As described above, according to the present invention, both the igniting charge and the igniting charge are non-explosive components, and their handling sensitivity is much higher than that of the igniting charge, the priming charge and the auxiliary charge used for the electric detonator. Insensitive and highly safe. Therefore, it can be used without obtaining a consumption permit under the Explosives Control Law. Furthermore, by using the same composition, the flash igniter and the igniter series composed of the same non-explosive components can be simultaneously mixed and used.

Further, the present invention provides a method of using a postponing drug having an arbitrary length even if the postponing drug of the postponing drug tube is one type having a fixed length and the type of postponing drug is small, by using the postponing relay drug. Pressing the postponed relay medicine into the space of the remaining postponed drug length part (even if the postponed drug length is a fixed length, the ratio of the length of the postponed drug to postponed relay drug is arbitrarily changed). A non-explosive igniter having a delayed second time can be provided. This is advantageous in terms of material management and in terms of the manufacturing cost of the postponed drug tube itself because the postponed drug tube can be of one type.

Further, according to the present invention, since the igniter cup is made of an insulated metal material, the igniter cup portion may be destroyed by the reaction gas pressure of the igniter. , The discharge phenomenon occurs with the postponed medicine tube and the ignition charge is not ignited. Therefore, it is possible to provide a highly reliable product with little variation in the delay time.

The present invention also provides a non-explosive composition having a high ignition sensitivity because the igniting powder and the igniting powder are granulated products. The postponed relay medicine is a composition which has a sustained combustion even if it is pressurized, and its dispersion can be reduced because it is used after being pressurized. Incidentally, it has been confirmed that these pressurized compositions have combustion sustainability even at 1700 kgf / cm ² .

Further, the present invention has the same shape and shape as the electric detonator.
The use of aluminum, even in size, provides an igniter that can be easily distinguished from an electric detonator and does not give a feeling of strangeness to consumers who have used the electric detonator. Further, in the present invention, water resistance is imparted by caulking after embedding the embolus into the exterior, and its function can be reliably exhibited even under conditions such as water holes.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing one embodiment of a non-explosive step igniter of the present invention.

FIG. 2 is a sectional view of an ignition charge cup-integrated extension medicine tube used in FIG. 1;

FIG. 3 is a side view of the embolus with an electric bridge line used in FIG. 1;

FIG. 4 is a cross-sectional view of an ignition charge cup-integrated extension medicine tube used in FIG. 1;

FIG. 5 is a cross-sectional view of the ignition charge cup-integrated extension medicine tube used in FIG. 1;

FIG. 6 is a sectional view of an ignition charge cup-integrated extension medicine tube used in FIG. 1;

FIG. 7 is a sectional view of an ignition charge cup and a postponed medicine tube used in FIG. 1;

FIG. 8 is a sectional view showing another embodiment of the non-explosive step igniter of the present invention.

FIG. 9 is a side view of the embolus with the electric bridge line used in FIG. 8;

FIG. 10 is a sectional view of an ignition charge cup-integrated extension medicine tube used in FIG. 8;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Aluminum igniter pipe 2 Ignition charge 3, 30 Ignition charge cup-integrated postponed medicine tube 4 Embolus fitting part 5 Ignition charge part 6 Postponement medicine length part 7 Ignition medicine 8 Embolus with electric bridge wire 9 Electric bridge wire 11, 12, 40, 41, 42 Caulking part 13 Ignition relay medicine 14 Postponement medicine 15 Postponement medicine

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) C06C 9/00 F42B 3/12 C06B 33/00

Claims (9)

(57) [Claims] An igniter tube and an embolus with a wire bridge press-fit into the igniter tube. The igniter tube is filled with an igniting agent, a postponing agent, and an igniting agent. An ignition relay is pressurized between the postponing medicine and the igniting charge is B / BaCrO ₄ = 3 to 12% by weight / 88 to
97% by weight or B / CuO = 8 to 35% by weight / 65 to 9
It consists of two weight percent, postponement agent, B / BaCrO ₄ = 5 wt% / 95 wt% or Mg / FeSi / BaCrO ₄ = 5~15 wt% / 5
10 to 10% by weight / 75 to 95% by weight, and the igniting agent is B / Al / CuO = 2 to 5% by weight / 10-2.
0% by weight / 70 to 90% by weight, and the ignition relay is B / CuO = 8 to 35% by weight / 65 to 9
A non-explosive igniter comprising 2% by weight. 2. The non-explosive step igniter according to claim 1, wherein the igniter is accommodated in the igniter cup together with the electric bridge of the embolus with an electric bridge, and the ignition relay and the postponing medicine are contained in the postponed medicine tube. A non-explosive igniter that is housed in a gunpowder. 3. An igniter tube, and an embolus with a wire bridge press-fitted into the igniter tube, wherein the igniter tube is filled with an igniting agent, a postponing agent, and an igniting agent. In between, the igniting relay is pressed, and between the postponing drug and the igniting powder, the postponing relay is pressed, and the igniting charge is B / BaCrO ₄ = 3 to 12% by weight / 88 ~
97% by weight or B / CuO = 8 to 35% by weight / 65 to 9
It consists of two weight percent, postponement agent, B / BaCrO ₄ = 5 wt% / 95 wt% or Mg / FeSi / BaCrO ₄ = 5~15 wt% / 5
10 to 10% by weight / 75 to 95% by weight, and the igniting agent is B / Al / CuO = 2 to 5% by weight / 10-2.
0% by weight / 70 to 90% by weight, and the ignition relay is B / CuO = 8 to 35% by weight / 65 to 9
2% by weight, the postponed relay is composed of B / CuO = 10% by weight / 90% by weight, and the composition after the igniting relay is pressed into a postponed drug tube having a fixed length of postponed drug. A non-powder step igniter characterized by being made. 4. The non-explosive step igniter according to claim 3, wherein the igniter is housed in the igniter cup together with the electric bridge of the emboli with electric bridge, and the ignition relay, the postponing agent and the postponing relay are A non-explosive step igniter, which is housed in a postponed medicine tube. 5. A non-explosive charge igniter according to claim 2, wherein the igniter charge cup and the postponed medicine tube are made of electrically insulated soft metal. Step igniter. 6. The non-explosive igniter according to claim 2, wherein the igniter cup and the postponer tube are integrally formed of electrically insulated soft metal. Non-explosive igniter. 7. The non-explosive igniter according to claim 3, wherein the igniter includes a plurality of types of non-explosive igniters having a fixed postponed second time interval by using any one of the following types of postponed drugs. At the same time, by using a postponed relay with a burning rate several times faster than the postponed drug between the postponed drug and the igniting drug, it is possible to set any postponed second within the maximum postponed second time of each postponed drug B / BaCrO ₄ = 5% by weight / 95
% By weight, Mg / FeSi / BaCrO ₄ = 1
0% by weight / 5% by weight / 85% by weight Mg / FeSi / BaCrO ₄ = 5
A non-explosive step-type igniter characterized by comprising: 5% by weight / 5% by weight / 90% by weight. 8. The non-explosive step igniter according to claim 1, wherein the igniter tube is made of aluminum. 9. The non-explosive igniter according to claim 1, wherein the igniting powder and the igniting powder are granules of 12 to 32 mesh.