JPH0633214B2 - Method and device for encapsulating storage of explosive and detonator - Google Patents

Description

The present invention relates to a storage device for explosives and detonators. In particular,
Dynamite, ammonium nitrate oil explosive, hydrous explosive, carlit,
Explosives such as ammonium nitrate explosives, Ammon explosives, and detonators such as industrial detonators and electric detonators are safe explosives that do not cause physical and psychological damage to the surroundings even if an explosion accident occurs. The present invention relates to an encapsulated storage device for explosive substances such as detonators.

[Prior Art] Conventionally, explosives such as explosives and detonators have been stored in an explosive store. The explosives warehouse has been designed to prevent stored explosives from exploding, to minimize damage to the surroundings in the event of an explosion, and to prevent theft.

As a consideration to prevent the explosion of explosives during storage, place explosives or explosives that are large in explosive power but hard to explode on their own and detonators that are prone to explosive together in a small-capacity explosive store. I admit, but it is forbidden to put a large-capacity powder magazine together.

Be sure to install a partition wall to prevent the detonator explosion from inducing explosive and explosive explosions, keep the temperature of the explosive store constant to prevent spontaneous ignition and freezing of explosive explosives, old explosives Take out first to prevent deterioration of explosives due to long-term storage and to prevent spontaneous decomposition, do not put explosives in the foot, keep the walls from the iron surface to prevent iron from being exposed, install a lightning rod, and fire around. To prevent this from happening.

As a consideration to prevent damage to the surroundings even if it explodes,
The maximum storage amount of explosives is regulated, the safety distance for important properties is set, and a structure that prevents heavy debris from flying far away even if an explosion occurs is specified.

As measures against theft, locks that cannot be easily broken, attach doors that cannot be easily broken, wire mesh to prevent intrusion when using a roof with a lightweight structure to prevent heavy debris, and an automatic alarm device. It keeps track of things and keeps a book every time.

Some small amounts of explosives are allowed to be stored in a safe place other than the explosive store. However, a small amount of explosives and detonators are allowed to be stored outside the explosive store at locations away from urban areas such as construction sites, but explosives and detonators are often used by explosives distributors often found in urban areas. Storage outside of the explosives warehouse is currently not allowed. Young,
This is because if an explosive stored in an urban area causes an explosion accident, it will cause serious damage to surroundings and increase social anxiety.

In recent years, the traffic conditions in each region have deteriorated, and it has become more and more common to get caught up in the transportation of explosives and detonators to the explosives store of dealers. That is, the danger of putting explosives on the road for a long time has increased. Therefore, even in urban areas, it is desired to be able to install safe explosive and detonator storage devices.

However, in the conventional storage system in which the entire amount in the storage container explodes in the event of an explosion accident, the explosive charge may cause damage to the surroundings or generate a loud explosion sound. Storing detonators and detonators in urban areas is not allowed.

Another problem related to the temporary storage of small amounts of explosives at explosives stores is the return of unburned explosives generated at the site of consumption. In the case of a consumer site that does not own an explosives storage or an outside storage, it is normal to return the after explosives generated, such as the detonator or the medicine package that was to be used as the parent die, to the store where it was purchased. However, in this case, the store does not allow detonators or explosives to be stored outside the warehouse, so they will be stored in an explosives warehouse. Generally, the explosives warehouse is located far from the store, and Since it is after the work, there are many inconveniences, such as the fact that it often happens at night. Under such circumstances, there is a strong demand for a store to temporarily store a small amount of detonators and medicine packages by taking some method or measure within a short distance from the store. However, the storage of explosives in urban areas has the supreme proposition of how to secure public safety in the unlikely event of an explosion, and it cannot be said that storage is allowed lightly. There must be something that guarantees safety.

[Problems to be Solved by the Invention] In the situation as described above, the present inventors have found that even if the explosive or detonator explodes in the storage for some reason, the explosion is caused by one explosive or one detonator. Storage of explosives or detonators that can only be small enough not to cause an explosion of explosives around them and to cause no damage to the surroundings of the storage and noise to disturb the surroundings I realized I needed a device. Based on this recognition, we proceeded with our research and invented the following safe storage device.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present inventors have found that even if an explosive or detonator explodes in the storage for some reason, the explosion is one explosive or It is necessary to make it so small that it does not cause an explosion of explosives around other parts only by the explosion of one detonator, and that the explosion does not damage the surroundings of the storage and the noise does not disturb the surroundings. With the recognition that it is, we proceeded with research and developed the following safe and reliable storage device.

As a result of many experimental studies, the inventors of the present invention have embedded a plastic individual container having an inner diameter of about 40 mm or less with a center distance of 15 cm or more in a shock absorbing material such as river sand. By inserting industrial explosive packages of 100 g or less into each one and inserting a powder shock absorber such as river sand in front of it, even if one explosive explodes, other explosives It does not cause detonation, and one explosion energy is absorbed by the surrounding powder shock absorber, which has a small destructive effect on the storage that stores explosives, and the explosion noise leaking from the storage is significantly reduced. I found it.

As described above, the inventors of the present invention can distribute a medicine package or the like in a powder shock absorbing material such as sand at an appropriate interval even if one of them is exploded and another medicine package is It was discovered that the detonation of the above would prevent it, and it was named [capsule storage method for explosives].

[Operation] The "capsule-based storage method for explosives" according to the present invention means "a powder shock absorbing material such as sand is used for the explosive cartridge, detonator, etc. at a necessary interval sufficient to prevent blasting. It will be stored by distributing it inside. "

In the explosive or detonator storage device of the present invention, in the case of a detonator assembly of 100 or less, an individual container for detonator storage,
If the end face is placed 15 cm or more away from the center of the explosive in the adjacent individual packaging via a powder shock absorbing material such as river sand, even if the detonator explodes, it will not be transmitted to the explosive. I was confirmed. Based on this confirmation fact, safe detonator and explosives can be stored simultaneously. For such confirmation, a safety test was conducted as described below with respect to the influence of explosion, that is, explosion sound, blast pressure, explosion vibration, etc., and the encapsulating method of the explosive and detonator of the present invention was invented. Is.

When one 100g explosive package or 100 detonators or less explodes, the factors that influence whether or not other explosives placed adjacent to each other will be detonated are the distances between explosives or between explosives and detonator assemblies. , The nature of the intervening substances (ie, shock absorbers), and the surrounding structure around which the explosive pack and detonator assembly are placed. The storage device of the present invention has the following structure.

The explosive and detonator storage device of the present invention will be described with reference to the drawings. 1 (A) and (B) show a cross section of an example of an individual container used in the storage device of the present invention, and an example of a double-structured cylindrical container for containing one medicine package within 100 g. Is. That is, this is for example made of vinyl chloride (made of vinyl chloride),
25mm to 30mm in diameter x 100g for storing dynamite, carrit, water-containing explosives, etc.
The figure is shown in cross section. 1 is an outer cylindrical container,
2 is an inner cylindrical body, and the inner container 2 is a handle 1.
0, which is a drawer structure for the outer container 1,
A shock absorbing material 5 such as river sand is packed in front of the partition plate 3, and a double lid is formed between the partition plate 3 and the drawer-shaped surface 4, and the partition plate 3 and the bottom (innermost) plate 6 are separated from each other. The space between the cylinders is a semi-cylindrical boat, and is used to store one pack of explosive.

The outer cylindrical container 1 has an innermost lid 7. This individually packaged container has a double structure as shown in FIG. 1 (B) showing the AA 'cross section. The inner container is a semi-cylindrical boat-shaped medicine package accommodating portion 11 (comprising a plate 6, an inner container having a semicircular cross section, and a partition plate 3), a cylindrical portion 5 filled with a shock absorbing material such as sand, and the inner container. The lid 4 is integrated, and when taking out the medicine package,
By pulling out the integrated inner container with the handle 10 like pulling out, the medicine package housing portion 11 can be pulled out to take out the medicine package.

In this case, the inner container is a commercially available PVC pipe (JIS, K 67
41 VP-30), and the outer container can be made of a PVC pipe of the same diameter as the inner container can be inserted, and the above-mentioned PVC pipe VP-40 can be used.

The size of the individual packaging container up to the medicine package of 100 g is the outer diameter e
Is 45 to 50 mm, and the inner diameter of the outer cylinder is 38 to 43
mm, the outer diameter of the inner cylinder is 36 to 40 mm, and the inner diameter is 2
7-33 mm, the length b of the double structure container is 30-40 cm
And the length a of the part where the shock absorber is packed is about 15 cm.
That is all.

Next, one example of a storage room in which the individual packaging container shown in the sectional views of FIGS. 1 (A) and (B) is embedded and stored in a shock absorbing material such as river sand is shown in FIGS. 2 (A) (B) (C). Shown in. The individual packaging containers in Figures 1 (A) and (B) are 2
1 and is arranged in the shock absorbing material 20 such as sand at a predetermined interval h as shown in the figure. The figure shows a storage device for storing 41 packages of 100 g or less, that is, 4.1 kg of explosives and 100 detonators (in the detonator storage chamber 22).
An example is shown. In this case, h is about 15 cm, and the depth interval q of the shock absorbing material is set on the back side of the individual packaging container 21. This also has the same value as h, and is about 15 cm. Therefore, s is about 45 to 55 cm.

The storage 18 for storing the storage device 19 of the present invention is made of a reinforced concrete wall 23 (the thickness of which is about 5 to 5).
20 cm), and there is a rocker type container 24 filled with the shock absorbing material 20 such as sand. The wall of the container 24 may be one that can withstand sand that is clogged, but is preferably a fireproof one such as gypsum board, large flat plate, or thin concrete plate. In addition, in FIG. 2 (A) (B) (C), reference numeral 25 is a door of the cabinet 18, preferably a fireproof door. Reference numeral 24 is a stand of the storage device 19 of the present invention, and 26 is a working room in the cabinet 18.

The wall of the storage 18 is fire-resistant like concrete, and has sufficient strength to withstand the explosion of one medicine package (100 g). A heat-insulating fire-resistant concrete is preferably applied to prevent heat from the outside, and at the same time, it becomes a soundproof material in case of an explosion. The size of the storage 18 is about 4 m ² .

In addition to river sand, lightweight impact absorbers such as glass microballoons and calcined perlite are also suitable as powder impact absorbers.

Next, details of the individual container 22 for storing the detonator are shown in FIGS. 3 (A) and (B).
Shown in. This is for accommodating up to 100 detonators and is shown in cross section. Reference numeral 31 is a storage portion of the detonator container 32, and shock absorbing material such as sand is packed in 35 portions. The inner container of this double container, like a drawer,
It is a structure that is pulled out by a handle portion 37 attached to the lid 36 of the container. A cross section taken along the line BB 'is shown in the lower left. The dimensions of this example are: the length a of the part where the shock absorber is clogged is about 15 cm, the total length is about 35 cm, the length c of the detonator housing part is about 20 cm, and the inner lateral width u is , About 1
It is 1 cm and the inner length is about 10 cm.

Next, the results of various tests conducted on the safety of the capsule-type storage device of the present invention are shown.

Safety test-1 Two 30 cm long polyvinyl chloride pipes (PVC pipes) with a wall thickness of 4 mm were buried in sand, and one PVC pipe was equipped with an explosive bag with a No. 6 electric detonator attached. Was put in a polyethylene bag with an inner diameter of 50 mm and inserted, and in the other PVC pipe, an explosive bag with a 50 cm long detonator attached was put in a polyethylene bag with an inner diameter of 50 mm and inserted.

The distance between the PVC pipes was changed at an interval of 10 mm, one explosive was detonated, and the distance at which no detonation was performed was obtained in six tests.

The results of the tests for No. 3 paulownia dynamite and No. 5 carlit are shown in Table 1. Explosives center interval 90 in this test
It turned out to be undefeated at mm or above.

Table 1 Destruction test in sand (No. 3 paulownia dynamite: 100 g, diameter 30 mm) ( PVC pipe ; inner diameter 35 mm, wall thickness 4 mm, length 300 mm) PVC pipe interval judgment NO. 1 48 mm detonation NO. 2 58 mm detonation NO .3 68mm Destruction NO.4 78mm Destruction NO.5 88mm Undestructed NO.6 88mm Undestructed NO.7 88mm Undecomposed NO.8 88mm Undestructed NO.9 88mm Undecomposed NO.10 88mm Undefeated (Unreacted dynamite remains at 88 mm) (No. 5 black curlit; 100 g, diameter 30 mm) ( PVC pipe ; inner diameter 35 mm, wall thickness 4 mm, length 300 mm) PVC pipe spacing judgment NO. 1 48 mm marbling NO .2 58mm undestructed NO. 3 68mm undecomposed (one experiment only) NO. 4 78mm undecomposed (one experiment only) NO. 5 98mm undecomposed NO. 6 98mm undecomposed NO. 7 98mm Unexploded No. 8 98mm Unexploded No. 9 98mm Unexploded No. 10 98mm Unexploded Safety Test-2. Detonator Explosion The detonability of explosives when the detonator assembly explosion affected explosives was tested. Align and bundle 100 No. 6 electric detonators for 10
It was put in a cardboard detonator box for 0 bottles, and it was buried in river sand. On the other hand, a PVC pipe with an inner diameter of 31 mm, an outer diameter of 38 mm, and a length of 30 cm is buried in sand so that its center is 10 cm from the end of the detonator box, and a No. 2 dynamite with a diameter of 25 mm and a weight of 100 g is put in it. I filled it with sand. I detonated one electric detonator and exploded 100 detonators, but No. 2 Enoki dynamite did not detonate. The test was conducted three times, but all were undefeated. Less destruction of PVC pipe containing explosives, 1
The 0 cm spacing was found to be a safe distance.

Safety test-3. Use the double-layered cylindrical container shown in Fig. 1 and place it in the sand.
One was detonated and one was exploded, and a detonation test was conducted. The results are shown in Table 2.

Enoki dynamite is 12cm when it is blasted at a center distance of 10cm.
Then it turned out to be undefeated.

It is known that the sensitivity of industrial explosives is No. 2 enoki dynamite> No. 3 paulownia dynamite> No. 2 black dynamite> water-containing explosive (energy gel), and the results of safety tests 1 and 3 give the same rank. If the unburnt distance is taken for No. 2 dynamite, it can be a safe unburnt distance. For safety, it was found that if the distance between the explosives centers is set to 15 cm or more, even if one medicine package explodes, the other will not be detonated.

Safety test 4-explosion sound 100g, 3 with the No. 6 electric detonator attached to the individual packaging container of Fig. 1
0mmΦ No. 2 Enoki dynamite was put and vertically embedded in the sand in the storage chamber as shown in Fig. 2, and 15cm of river sand was packed on the dynamite.

Explosive explodes. The storage room was not damaged. The noise measured externally is shown in Table 3. The measurement is at point A 10m away from the explosion through the sand wall, point B 10m away from the concrete wall, and 50m through the concrete wall.
The test was carried out at three points C, which were separated from each other.

Safety test 6-Explosion sound 1 piece of 100g2 Enoki dynamite was put into the individual container (diameter 40mm, length 35cm, center distance 20cm, total sand depth 55cm) shown in Fig. 1 and stored as shown in Fig. 2. Exploded at a height of 50 cm in the cabinet. The explosion sound outside the storage was measured. The results are shown in Table 4. The noise emitted to the outside is much smaller than that when it is exploded on the sand, and it is equivalent to the one using the storage container of Fig. 2 which is an upwardly packed individual container.

[Effects of the Invention] The capsule-type storage device for explosive substances such as explosives and detonators of the present invention has the following technical effects. Ie. (1) It was possible to provide a safe explosive and detonator storage device that can minimize damage to the surroundings even if an explosion accident occurs. (2) It is possible to provide a storage device for explosives and detonators that can be safely and reliably stored and can be stored safely even in urban areas. (3) It is possible to provide a safe storage device capable of confining the explosion at one place even if one highly sensitive explosive or detonator sensitive to impact explodes. (4) It is possible to provide a storage device for explosives and detonators capable of suppressing the maximum value of explosive force within 100 g of the explosive effect in principle, and thereby suppressing the third party damage due to shock waves.
(5) The method of storing explosives and detonators according to the present invention is capable of confining an explosion of one bottle or one package in one place by compartmental storage, and responding to the increasing society with the latest technology, and Can provide a system that guarantees public safety. (6) By the divided storage (encapsulated storage), we were able to provide a system that allows the operator to easily know the storage limit number.

[Brief description of drawings]

FIGS. 1 (A) and 1 (B) are sectional views showing an example of an individual container for containing explosive used in the storage device of the present invention. FIGS. 2 (A) (B) (C) show an example 19 of the storage device of the present invention and a storage 18 for housing it. 3 (A) and 3 (B) are sectional views showing an example of an individual container for accommodating a detonator according to the present invention. [Explanation of symbols of main parts] 1 ... Outer cylindrical container 2 ... Inner cylindrical container 3 ... Separator plate 4 ... Inner container handle plate 5 ... Powder impact absorbing material 7 ... External Lid 10 ...... Handle 11 …… Explosive storage part 18 …… Storage for storing the storage device of the present invention 19 …… Storage device of the present invention 20, 35 …… Impact absorption material of powder on sand 21 …… Individual packaging Container 22 ... Individual container for storing detonator 24 ... Stand of storage device of the present invention 25 ... Door 26 ... Working room 31 ... Detonator storage part, 32 ... Detonator box

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Takehiro Matsunaga Takehiro Matsunaga 389 Kogane, Matsudo-shi, Chiba Corp. No. 202 Fujimi Corp. (72) Inventor Rokuro Kajiyama 725 Kawashima-cho, Hodogaya-ku, Yokohama-shi, Kanagawa (72) Inventor Shozo Tamura Chiba Prefecture Kashiwa City Nedo 427-5 Kita Kashiwa Second House 3-101 (72) Inventor Naoto Kobayashi 5-3-25 Sakainan-cho, Musashino-shi, Tokyo (56) Reference JP-A-54-21100 (JP, A)

Claims (4)

[Claims] 1. A medicine packaged product of explosives of a predetermined maximum amount or less or a predetermined maximum detonator number or less is divided into each,
Each capsule container is covered with a double lid filled with a powder shock absorber, and each capsule container is placed in a powder shock absorber for a predetermined distance or more. A method for storing explosives and detonators, which is characterized in that the explosives and detonators are safely encapsulated and stored at a distance from the center of each other without embedding, detonating, or giving scattered materials. 2. A shock absorbing material filling wall filled with a powdery shock absorbing material in a wall shape, wherein a predetermined distance or more is provided between the shock absorbing material filling walls, and a predetermined distance is provided between the shock absorbing material filling walls. A plurality of capsule containers that individually store less than the maximum amount of explosives or a predetermined maximum number of detonators are embedded, and the structure of the capsule container is an outer shape that is securely inserted into the bottom of the outer container. An inner container having a double-lid structure with a tip having a drawer shape for accommodating an explosive or a detonator, and the double-lid structure being filled with a powder shock absorber. Storage device for explosives and detonators. 3. The explosive and detonator storage device according to claim 2, wherein the outer container of the capsule container is cylindrical, and the drawer-shaped portion of the inner container has a semicircular cross section. 4. The explosive and detonator storage device according to claim 2, wherein the capsule container is made of plastic.