KR20020044854A - explosive composition for an electric blasting - Google Patents
explosive composition for an electric blasting Download PDFInfo
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- KR20020044854A KR20020044854A KR1020000074086A KR20000074086A KR20020044854A KR 20020044854 A KR20020044854 A KR 20020044854A KR 1020000074086 A KR1020000074086 A KR 1020000074086A KR 20000074086 A KR20000074086 A KR 20000074086A KR 20020044854 A KR20020044854 A KR 20020044854A
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B31/00—Compositions containing an inorganic nitrogen-oxygen salt
- C06B31/28—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
- C06B21/0033—Shaping the mixture
- C06B21/0066—Shaping the mixture by granulation, e.g. flaking
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B27/00—Compositions containing a metal, boron, silicon, selenium or tellurium or mixtures, intercompounds or hydrides thereof, and hydrocarbons or halogenated hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B31/00—Compositions containing an inorganic nitrogen-oxygen salt
- C06B31/28—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate
- C06B31/285—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate with fuel oil, e.g. ANFO-compositions
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Abstract
Description
본 발명은 전기식 발파용 폭약 조성물에 관한 것으로서, 보다 상세하게는 산소공급원인 질산암모늄과 경유, 알루미늄 분말, 목탄 분말 등의 연료가 금속 와이어에 대전류를 급속 방전시켰을 때 발생되는 고열과 충격파 에너지에 의해 안정되게 폭발될 수 있는 조성비로 균일하게 혼합되어 구성됨으로써 보관 및 취급이 용이하고 사용이 간편하며, 폭발물이 비산되지 않아 폭발 잔여물의 수거가 용이한 전기식 발파용 폭약 조성물에 관한 것이다.The present invention relates to an explosive composition for electric blasting, and more particularly, due to the high heat and shock wave energy generated when a fuel such as ammonium nitrate, a light source of oxygen, diesel, aluminum powder, charcoal powder, etc., is rapidly discharged to a metal wire. The present invention relates to an explosive composition for electric blasting, which is easily mixed and composed of a composition ratio that can be stably exploded, and is easy to store and handle, easy to use, and easy to collect explosive residues.
일반적으로 토목, 건설, 광산 등에 사용되는 산업용 폭약은 기폭 감도가 낮아 기폭시키기가 쉽지 않다.In general, industrial explosives used in civil engineering, construction, mining, etc. are not easy to detonate because of their low sensitivity.
따라서, 일반적으로 산업용 폭약은 취급이 어렵고 위험하기는 하나 기폭 감도가 높은 뇌관과 전폭약을 사용하여 기폭시키는데, 이러한 기폭 방식으로는 도화선, 시그널 튜브 등의 비전기식 뇌관을 사용하는 방식과, 전기 에너지를 열 에너지로 변환시켜 기폭시키는 전기식 뇌관을 사용하는 방식이 있다.Therefore, in general, industrial explosives are difficult and dangerous to handle, but using a highly sensitive primer and a full explosives, such as the explosion method using a non-electrical primer such as a fuse, a signal tube, and electrical energy There is a method using an electrical primer that converts the heat into thermal energy to detonate it.
그러나, 상기 방법들의 실시에 사용되는 폭약들은 필수적으로 고가이면서 취급이 용이하지 않은 뇌관과 전폭약을 사용하여야 하므로, 폭약의 보관, 운반, 취급시에 외부 에너지 또는 충격 등에 의해 뇌관이 폭발할 위험성이 높고, 사용시 요란한 폭음을 내며, 뇌관에 의한 전폭약의 연소 속도가 너무 빠르기 때문에 폭발물이 미세한 크기로 비산되어 작업자나 주변환경에 커다란 위험요소가 되고 또한 그 처리가 용이하지 않은 문제점들이 있었다.However, the explosives used in the implementation of the above methods must use expensive and inexpensive primers and full explosives, so there is a risk of detonation of the primers by external energy or impact when storing, transporting or handling the explosives. There was a problem that high, emits a loud noise during use, explosives are scattered to a fine size because the combustion speed of the explosives by the primer is too fast, which is a great danger to the operator or the surrounding environment, and the treatment is not easy.
본 발명은 상기와 같은 문제점들을 해결하기 위해 안출된 것으로서, 보관 및 운반시 외부 에너지 또는 충격 등으로 인해 폭발할 위험성이 없는 안전성 높은 전기식 발파용 폭약 조성물을 제공하는 것을 목적으로 한다.The present invention has been made to solve the above problems, and an object of the present invention is to provide a safe electrical explosive composition for explosion without the risk of explosion due to external energy or impact during storage and transportation.
본 발명의 다른 목적은 취급이 용이하고 사용이 간편하며, 폭발시 저소음, 저진동인 전기식 발파용 폭약 조성물을 제공하는 것이다.Another object of the present invention is to provide an explosive composition for electric blasting, which is easy to handle and simple to use, and low noise and low vibration in explosion.
본 발명의 또 다른 목적은 폭발물이 비산되지 않고 입자화되어 안전하며 폭발 부산물의 수거가 용이한 전기식 발파용 폭약 조성물을 제공하는 것이다.Still another object of the present invention is to provide an explosive composition for electric blasting, in which explosives are not scattered, are granulated, safe, and easy to collect explosive by-products.
본 발명의 상기 목적들은 질산암모늄과 경유로 구성되는 에멀젼 폭약 조성물과, 질산암모늄과 알루미늄 분말 또는 목탄 분말로 구성되는 분상 폭약 조성물을 혼합하여 제조되는, 전기식 발파용 폭약 조성물을 제공함으로써 달성되는데, 상기 폭약 조성물은 전기식 기폭 와이어가 구비된 밀폐된 용기에 내장되어 주장약으로 사용됨으로써 전기식 기폭 장치로 기폭시키면 고전압·고전류가 인가된 기폭 와이어에 열이 발생하고, 그 열에 의해 기폭 와이어가 액체, 기체 , 플라즈마 상태로 변화하는 과정에서 충격파가 발생되고, 계속적인 전류의 흐름으로 인한 열 발생으로 고온, 고압 상태가 되어 폭발하게 된다.The above object of the present invention is achieved by providing an emulsion explosive composition composed of ammonium nitrate and diesel, and an explosive composition for electric blasting, which is prepared by mixing a powdered explosive composition composed of ammonium nitrate and aluminum powder or charcoal powder. The explosive composition is embedded in an airtight container equipped with an electrical detonation wire and used as an antidote, and when detonated with an electric detonation device, heat is generated in the detonation wire to which high voltage and high current are applied. Shock wave is generated in the process of changing to plasma state, and heat is generated due to continuous flow of current and it is exploded due to high temperature and high pressure.
본 발명의 실시에 있어서 가장 이상적인 전기식 기폭 장치는 본 발명자의 특허출원 제2000-32753호에 개시되어 있으며, 밀폐된 용기에 내장된 주장약과, 상기 주장약 내부에 설치된 (+)(-) 전극선과, 상기 (+)(-) 전극선에 연결된 기폭 와이어와, 상기 기폭 와이어에 고전압을 공급하는 전원공급기로 구성된다.The most ideal electric detonator in the practice of the present invention is disclosed in the present inventors patent application No. 2000-32753, the claim drug embedded in a sealed container, (+) (-) electrode wire installed inside the claim drug and And a detonation wire connected to the (+) (-) electrode line and a power supply supplying a high voltage to the detonation wire.
본 발명은 입경이 0.5∼3㎜인 질산암모늄 92∼96중량%와 경유 8∼4중량%로 구성되는 에멀젼 폭약 조성물과, 입경이 50∼200㎛인 질산암모늄 80∼95중량%와 알루미늄 분말 또는 목탄 분말 5∼20 중량%로 구성되는 분상 폭약 조성물을 혼합하여 제조되는, 전기식 발파용 폭약 조성물에 관한 것이다.The present invention provides an emulsion explosive composition composed of 92 to 96% by weight of ammonium nitrate having a particle diameter of 0.5 to 3 mm and 8 to 4% by weight of diesel oil, 80 to 95% by weight of ammonium nitrate having a particle diameter of 50 to 200 µm and aluminum powder or An explosive composition for electric blasting, which is prepared by mixing a powdered explosive composition comprising 5 to 20% by weight of charcoal powder.
본 발명은 기폭감도가 매우 둔감한 질산암모늄을 주제로 하는 폭약을 취급 및 보관상에서 매우 위험한 뇌관과 보조폭약을 사용하지 않고 대전류의 급속방전 특성으로 기폭시키는 전기식 발파용의 목적에 맞도록 제조된다.The present invention is manufactured for the purpose of electric blasting to detonate explosives with a large current rapid discharge characteristics without the use of primers and auxiliary explosives, which are very dangerous in handling and storing explosives based on ammonium nitrate, which are very insensitive to detonation.
질산암모늄은 폭발 반응 중 산소를 공급하는 역할을 하는 것으로서 값이 저렴하면서도 높은 폭발특성을 나타내는데, 본 발명에서는 입경이 0.5∼3㎜인 질산암모늄과 입경이 50∼200㎛인 질산암모늄이 사용되나 이에 한정되는 것은 아니다.Ammonium nitrate plays a role of supplying oxygen during the explosion reaction and shows low explosiveness and high explosion characteristics. In the present invention, ammonium nitrate having a particle size of 0.5 to 3 mm and ammonium nitrate having a particle size of 50 to 200 μm are used. It is not limited.
이하, 본 발명 전기식 발파용 폭약 조성물의 구성을 실시예를 들어 상세히 설명하면 다음과 같으나, 본 발명이 이에 한정되는 것은 아니다.Hereinafter, the present invention will be described in detail with reference to the configuration of the explosive composition for electric blasting as follows, but the present invention is not limited thereto.
실시예 1Example 1
혼화기에 입경이 0.5∼3㎜인 공업용 질산암모늄 94 중량%와 경유 6 중량%를넣고 상온에서 균일하게 혼합하여 에멀젼 폭약 조성물을 제조하였다.94% by weight of industrial ammonium nitrate having a particle size of 0.5 to 3 mm and 6% by weight of diesel oil were added to the admixture and uniformly mixed at room temperature to prepare an emulsion explosive composition.
상기 실시예 1은 산소공급원인 질산암모늄과 연료인 경유가 연소되는데 있어서 최적의 화학양론(stoichiometry)적 조성비로 구성된 것이다.Example 1 is composed of an optimum stoichiometry composition ratio in the combustion of ammonium nitrate as an oxygen source and light oil as a fuel.
공업용 질산암모늄은 가격면에서 경제적일 뿐 아니라 입경이 0.5∼3㎜인 질산암모늄 입자가 다공성 구조를 이루고 있어 경유를 혼합시켰을 때 경유가 이 기공을 통해 질산암모늄의 입자내부로 균일하게 흡수될 수 있다.Industrial ammonium nitrate is not only economical in terms of cost but also has a porous structure of ammonium nitrate particles having a particle size of 0.5 to 3 mm, so that when the diesel oil is mixed, the diesel oil can be uniformly absorbed into the particles of the ammonium nitrate through the pores. .
또한, 상기 질산암모늄에 형성되어 있는 기공은 연소과정에서 연소가스의 통로 역할을 함으로써 폭약 조성물의 연소시에 안정성을 부여하고 연소 속도를 빠르게 한다.In addition, the pores formed in the ammonium nitrate serve as a passage of the combustion gas in the combustion process to impart stability during combustion of the explosive composition and to speed up the combustion rate.
그러나 이러한 조성만으로는 폭발 특성이 불안정하여 전기기폭에 의해서 연소가 시작되어 화염면이 미연 폭약 조성물쪽으로 전파될 때 미연 폭약 조성물에 압력이 가해지면서 질산암모늄의 기공구조가 파괴되고 기공안에 흡수되어있던 경유가 화염면과 질산암모늄 사이에 막을 형성해 화염 전파를 방해함으로써 폭발이 이루어지지 않는 경우가 있었다.However, with this composition alone, the explosive properties are unstable and combustion starts due to the electric explosion, and when the flame surface propagates toward the unexploded explosive composition, pressure is applied to the unexploded explosive composition, destroying the pore structure of ammonium nitrate and absorbing the gas oil absorbed in the pores. There was a case where an explosion could not be achieved by forming a film between the flame surface and ammonium nitrate to interfere with flame propagation.
실시예 2Example 2
혼화기에 입경이 50∼200㎛인 화학용 질산암모늄 82 중량%와, 알루미늄 분말 18 중량%를 넣고 상온에서 균일하게 혼합하여 분상 폭약 조성물을 제조하였다.82 wt% of chemical ammonium nitrate having a particle diameter of 50 to 200 μm and 18 wt% of aluminum powder were added to the admixture, and uniformly mixed at room temperature to prepare a powder explosive composition.
상기 실시예 2는 산소 공급원으로 실시예 1과 동일한 질산암모늄을, 연료로는 고체연료인 알루미늄 분말을 사용하여 최적의 화학양론(stoichiometry)적 조성비로 혼합하였다.In Example 2, the same ammonium nitrate as in Example 1 was used as an oxygen source and aluminum powder, which is a solid fuel, was mixed at an optimum stoichiometry composition ratio.
이와 같이 연료로서 고체 금속 분말을 사용할 경우 입자가 크고 기공 구조를 가지는 가격이 저렴한 공업용 질산암모늄의 장점을 활용할 수 없으므로, 금속 분말과 혼합이 잘 되도록 가격이 공업용에 비해 4∼5배 비싸기는 하나 입자 크기가 작은 분말 형태의 화학용 질산암모늄을 사용하였다.As such, when the solid metal powder is used as a fuel, it is impossible to take advantage of the low-cost industrial ammonium nitrate, which has a large particle size and a pore structure. Chemical ammonium nitrate in small powder form was used.
그 결과 실시예 2에서 제조된 폭약 조성물의 폭발 특성은 실시예 1의 경우보다 안정적이었으며, 동일 조건에서 폭발시켰을 때의 파괴효과를 폭약 조성물을 채웠던 압력강관의 파괴된 모양으로 확인하는 실험 결과 폭발력과 연소 속도도 실시예 1의 경우보다 우수한 것으로 나타났다.As a result, the explosive properties of the explosive composition prepared in Example 2 was more stable than in the case of Example 1, and the result of the experiment confirming the destruction effect of the explosive under the same conditions as the fractured shape of the pressure steel pipe filled with the explosive composition. The burn rate was also found to be superior to that of Example 1.
그러나, 상기 실시예 2의 경우 연료로 쓰이는 알루미늄 분말이 경유에 비해 가격이 수십배나 비싸고 입자 크기가 작은 화학용 질산암모늄 또한 공업용에 비해 4∼5배나 비싸기 때문에 제조비용이 많이 소요되는 문제점이 있었다.However, in the case of Example 2, since the aluminum powder used as fuel is tens of times more expensive than diesel and has a small particle size, ammonium nitrate for chemicals is also four to five times more expensive than for industrial use, resulting in a large manufacturing cost.
실시예 3Example 3
혼화기에 입경이 50∼200㎛인 화학용 질산암모늄 93 중량%와 목탄 분말 7 중량%를 넣고 상온에서 균일하게 혼합하여 분상 폭약 조성물을 제조하였다.93 wt% of chemical ammonium nitrate and 7 wt% of charcoal powder having a particle diameter of 50 to 200 μm were added to the admixture, and uniformly mixed at room temperature to prepare a powder explosive composition.
상기 실시예 3 역시 최적의 화학양론(stoichiometry)적 조성비로 혼합된 것으로 연료로서 고체 분말을 사용하였기 때문에 입자 크기가 작은 분말 형태의 화학용 질산암모늄을 사용하였으며, 실시예 2의 알루미늄 분말보다 취급이 용이하고 안전할 뿐 아니라 가격이 저렴한 목탄 분말을 사용하였다.Example 3 was also mixed at an optimum stoichiometry composition ratio, and because the solid powder was used as the fuel, a chemically-modified ammonium nitrate in the form of a small particle size was used. Charcoal powder is used that is easy and safe and inexpensive.
이와 같이 제조된 폭약 조성물은 연소 실험 결과 완전연소를 보여줌으로써 연소 안정성은 뛰어났으나, 동일 조건에서 폭발시켰을 때의 파괴효과를 폭약 조성물을 채웠던 압력강관의 파괴된 모양으로 확인하는 파괴 실험 결과 강관이 파괴되지 않고 강관의 상하 막음 부위만 파손되어 연소속도가 느린 것으로 나타났다.The explosive composition prepared as described above showed excellent combustion stability as a result of the combustion test, but the fracture test result confirmed that the fracture effect of the explosive composition when the exploded material was exploded under the same conditions as the broken shape of the pressure steel pipe filled with the explosive composition. It was found that the combustion speed was slow because only the upper and lower blocking portions of the steel pipe were not destroyed.
실시예 4Example 4
상기 실시예 1에서 제조된 조성물 50 중량%와 실시예 2에서 제조된 조성물 50 중량%를 혼합하여, 입경이 0.5∼3㎜인 질산암모늄 47 중량%와, 경유 3 중량%와, 입경이 50∼200㎛인 질산암모늄 41 중량%와, 알루미늄 분말 9 중량%로 구성되는 전기식 발파용 폭약 조성물을 제조하였다.50% by weight of the composition prepared in Example 1 and 50% by weight of the composition prepared in Example 2 were mixed, 47% by weight of ammonium nitrate having a particle diameter of 0.5 to 3 mm, 3% by weight of light oil, and a particle diameter of 50 to An explosive charge composition for electric blasting was prepared, comprising 41 wt% of ammonium nitrate having 200 μm and 9 wt% of aluminum powder.
실시예 5Example 5
상기 실시예 1에서 제조된 조성물 80 중량%와 실시예 2에서 제조된 조성물 20 중량%를 혼합하여, 입경이 0.5∼3㎜인 질산암모늄 75.2 중량%와, 경유 4.8 중량%와, 입경이 50∼200㎛인 질산암모늄 16.4 중량%와, 알루미늄 분말 3.6 중량%로 구성되는 전기식 발파용 폭약 조성물을 제조하였다.80% by weight of the composition prepared in Example 1 and 20% by weight of the composition prepared in Example 2 were mixed, and 75.2% by weight of ammonium nitrate having a particle diameter of 0.5 to 3 mm, 4.8% by weight of diesel oil, and the particle size of 50 to An explosive composition for electric blasting was prepared, consisting of 16.4% by weight of ammonium nitrate of 200 µm and 3.6% by weight of aluminum powder.
실시예 6Example 6
상기 실시예 1에서 제조된 조성물 60 중량%와 실시예 3에서 제조된 조성물 40 중량%를 혼합하여, 입경이 0.5∼3㎜인 질산암모늄 56.4 중량%와, 경유 3.6중량%와, 입경이 50∼200㎛인 질산암모늄 37.2 중량%와, 목탄 분말 2.8 중량%로 구성되는 전기식 발파용 폭약 조성물을 제조하였다.By mixing 60% by weight of the composition prepared in Example 1 and 40% by weight of the composition prepared in Example 3, 56.4% by weight of ammonium nitrate having a particle diameter of 0.5 ~ 3mm, 3.6% by weight of diesel oil, 50 ~ An explosive composition for electric blasting was prepared, consisting of 37.2% by weight of ammonium nitrate having 200 µm and 2.8% by weight of charcoal powder.
본 발명자는 폭발 효과가 매우 뛰어난 반면 제조 비용이 많이 소요되는 실시예 2의 조성물과 제조 비용이 저렴하기는 하나 불안정한 폭발 특성을 보이는 실시예 1, 3의 조성물들의 장단점을 상호보완하는 폭약 조성물을 제조하기 위하여 상기 실시예 4 내지 실시예 6 외에도 실시예 1, 2, 3의 조성물들을 다양한 조성비로 혼합하여 실험한 결과 에멀젼 폭약 조성물 80∼10중량%와 분상 폭약 조성물 20∼90중량%로 구성되는 바람직한 폭발 특성을 나타내는 폭약 조성물을 발명할 수 있었다.The present inventors prepared an explosive composition that complements the advantages and disadvantages of the composition of Example 2, which has a very high explosive effect but requires a high manufacturing cost, and the compositions of Examples 1 and 3, which are inexpensive but have unstable explosion characteristics. In order to experiment with the compositions of Examples 1, 2, 3 in addition to the above Examples 4 to 6 in a variety of composition ratios as a result of the composition composed of 80 to 10% by weight emulsion explosive composition and 20 to 90% by weight powder composition An explosive composition exhibiting explosive properties could be invented.
먼저, 연료로 경유와 알루미늄 분말을 사용하는 실시예 1과 실시예 2의 조성물들의 혼합에 있어서, 실시예 2의 조성물 단독일 경우에 가장 우수한 파괴 효과를 나타내었으며, 실시예 1의 조성물의 첨가량이 20중량%∼50중량%인 범위내에서 폭발이 잘 이루어지며 파괴 효과도 만족스러운 결과를 나타내었다.First, in the mixing of the compositions of Example 1 and Example 2 using diesel oil and aluminum powder as fuel, the composition of Example 2 showed the best breaking effect when the composition of Example 2 alone, Within the range of 20% by weight to 50% by weight, explosion was well performed and the destruction effect was satisfactory.
그러나 실시예 1의 조성물이 80중량% 이상 첨가되면서 연소의 불안정성을 보였는데, 기폭 와이어 부근에서 기폭이 시작되다가 전파되지 못하는 경우가 발생되었다.However, when the composition of Example 1 was added to 80% by weight or more showed instability of combustion, the case of the start of the detonation in the vicinity of the detonation wire did not propagate.
따라서 실시예 1의 조성물과 실시예 2의 조성물의 바람직한 혼합비율은 실시예 2의 조성물이 20 중량%이상 혼합되는 것이며, 입경이 0.5∼3㎜인 질산암모늄 75.2∼9.4 중량%와, 경유 4.8∼0.6 중량%와, 입경이 50∼200㎛인 질산암모늄 16.4∼73.8 중량%와, 알루미늄 분말 3.6∼16.2 중량%로 구성되는 것이 바람직하다.Therefore, the preferable mixing ratio of the composition of Example 1 and the composition of Example 2 is that the composition of Example 2 is mixed by 20% by weight or more, 75.2 to 9.4% by weight of ammonium nitrate having a particle diameter of 0.5 to 3 mm, and 4.8 to diesel. It is preferable that it is comprised from 0.6 weight%, 16.4-73.8 weight% of ammonium nitrates whose particle diameter is 50-200 micrometers, and 3.6-16.2 weight% of aluminum powder.
그리고, 연료로 경유와 목탄 분말을 사용하는 실시예 1과 실시예 3에서 제조된 조성물들의 혼합에 있어서, 실시예 1의 조성물과 실시예 3의 조성물을 각각 독립적으로 사용하는 경우보다 이 둘을 적정 혼합비율로 혼합하여 사용하는 경우가 폭발의 안정성이나 파괴력 면에서 더 우수한 것으로 나타났다.In the mixing of the compositions prepared in Example 1 and Example 3 using diesel oil and charcoal powder as fuel, the two are titrated more than the case in which the composition of Example 1 and the composition of Example 3 are each independently used. The mixing ratio was better in terms of explosion stability and destructive power.
즉, 실시예 3의 조성물이 40 중량%∼50 중량%로 혼합되어 입경이 0.5∼3㎜인 질산암모늄 47∼56.4 중량%와, 경유 3∼3.6 중량%와, 입경이 50∼200㎛인 질산암모늄 46.5∼37.2 중량%와, 목탄 분말 3.5∼2.8 중량%로 구성되는 폭약 조성물이 안정적으로 폭발하였으며, 이 범위를 벗어난 혼합물은 초기 와이어 주변에서만 연소가 일어나고 전파가 이루어지지 않아 폭발이 잘 일어나지 않았다.That is, the composition of Example 3 was mixed at 40% by weight to 50% by weight, and 47 to 56.4% by weight of ammonium nitrate having a particle size of 0.5 to 3 mm, 3 to 3.6% by weight of diesel oil, and a particle size of 50 to 200 µm. The explosive composition composed of 46.5 to 37.2% by weight of ammonium and 3.5 to 2.8% by weight of charcoal powder stably exploded, and the mixture outside this range was not easily exploded due to combustion and propagation only around the initial wire.
본 발명 전기식 발파용 폭약 조성물은 취급이 용이하고 사용이 간편하며, 안전한 전기 에너지를 이용하여 기폭되므로 폭약의 보관, 운반, 취급시에 외부 에너지 또는 충격 등으로 폭발할 위험성이 없어 매우 안전하다.The explosive composition for the electric blasting of the present invention is easy to handle, easy to use, and detonated using safe electrical energy, so there is no danger of explosion due to external energy or impact during storage, transportation, and handling of the explosive.
또한, 종래의 뇌관과 보조폭약을 사용하지 않고 대전류의 급속방전 특성으로 기폭을 시키기 때문에 취급 및 보관상에서 매우 위험한 뇌관과 보조폭약이 필요치 않으며 여기에 소요되는 비용 또한 절감 할 수 있다.In addition, since the detonation is caused by the rapid discharge characteristics of a large current without using a conventional primer and an auxiliary explosive, it is not necessary to have a very dangerous primer and an auxiliary explosive in handling and storage, and it can also reduce the cost.
그리고, 본 발명은 전기식 기폭 와이어에 의해 기폭된 주장약의 연소 속도가 빠르지 않기 때문에 저소음, 저진동이어서 폭발물이 비산되지 않고 파괴하고자 하는 목적물을 입자 상태로 파괴시키므로 폭발 잔여물의 수거가 용이하다.In addition, the present invention is low noise and low vibration because the combustion speed of the claimed drug detonated by the electric detonation wire is not so high that the explosives are not scattered and destroy the object to be destroyed in the form of particles.
Claims (4)
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3956040A (en) * | 1973-07-24 | 1976-05-11 | Gelan Kabushiki Kaisha | Explosive slurry composition containing sodium montmorillonite |
| KR900007843A (en) * | 1988-11-16 | 1990-06-02 | 재단법인 한국화학연구소 | New 6-fluoropurine compound and its manufacturing method |
| KR970074731A (en) * | 1996-05-07 | 1997-12-10 | 김용구 | Colostrum composition |
| JPH1059792A (en) * | 1996-06-28 | 1998-03-03 | Soc Natl Poudres Explosifs | Ignitable composition |
| JPH1179878A (en) * | 1997-09-03 | 1999-03-23 | Nippon Kayaku Co Ltd | Explosive composition |
| JP2000233988A (en) * | 1999-02-10 | 2000-08-29 | Nippon Koki Co Ltd | Granular explosive composition |
| JP2000302587A (en) * | 1999-04-21 | 2000-10-31 | Nof Corp | Powdery explosive composition and its production |
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- 2000-12-07 KR KR1020000074086A patent/KR20020044854A/en not_active Application Discontinuation
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3956040A (en) * | 1973-07-24 | 1976-05-11 | Gelan Kabushiki Kaisha | Explosive slurry composition containing sodium montmorillonite |
| KR900007843A (en) * | 1988-11-16 | 1990-06-02 | 재단법인 한국화학연구소 | New 6-fluoropurine compound and its manufacturing method |
| KR970074731A (en) * | 1996-05-07 | 1997-12-10 | 김용구 | Colostrum composition |
| JPH1059792A (en) * | 1996-06-28 | 1998-03-03 | Soc Natl Poudres Explosifs | Ignitable composition |
| JPH1179878A (en) * | 1997-09-03 | 1999-03-23 | Nippon Kayaku Co Ltd | Explosive composition |
| JP2000233988A (en) * | 1999-02-10 | 2000-08-29 | Nippon Koki Co Ltd | Granular explosive composition |
| JP2000302587A (en) * | 1999-04-21 | 2000-10-31 | Nof Corp | Powdery explosive composition and its production |
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