JPH11292676A - Water-in-oil type emulsion explosive composition - Google Patents

Water-in-oil type emulsion explosive composition

Info

Publication number
JPH11292676A
JPH11292676A JP10609998A JP10609998A JPH11292676A JP H11292676 A JPH11292676 A JP H11292676A JP 10609998 A JP10609998 A JP 10609998A JP 10609998 A JP10609998 A JP 10609998A JP H11292676 A JPH11292676 A JP H11292676A
Authority
JP
Japan
Prior art keywords
water
emulsion
hollow body
emulsion explosive
explosive composition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10609998A
Other languages
Japanese (ja)
Inventor
Yoshio Tanabe
芳雄 田辺
Hiroyuki Ochi
博之 越智
Takuya Taguchi
琢也 田口
Tokuo Inoue
篤雄 井上
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Kayaku Co Ltd
Original Assignee
Nippon Kayaku Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Kayaku Co Ltd filed Critical Nippon Kayaku Co Ltd
Priority to JP10609998A priority Critical patent/JPH11292676A/en
Publication of JPH11292676A publication Critical patent/JPH11292676A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To obtain an explosive directly fillable into a blast hole, by mixing a water-in-oil type emulsion containing an aqueous solution of an oxidizing agent, an oil and an emulsifying agent with a specific amount of a minute hollow body having a specified particle diameter and a prescribed amount of a hollow body and forming a granule. SOLUTION: This explosive composition is obtained by mixing a water-in-oil type emulsion comprising an aqueous solution of an oxidizing agent, an oil and an emulsifying agent with 1-20 wt.% of a minute hollow body made of glass or a resin having 0.01-0.3 mm particle diameter and 1-40 wt.% of a hollow body composed of pumicious sand, alumina, expanded alumina, etc., having 0.3-5.0 mm particle diameter and forming the mixture into a granule having 0.3-20.0 mm particle diameter. The water-in-oil type emulsion is obtained by preparing an emulsion so that the amount of the aqueous solution containing the oxidizing agent such as ammonium nitrate or the like, an auxiliary desensitizer such as monomethylamine nitrate and 5-40 wt.% of water is 60-98 wt.% in the composition, the amount of the oil such as a paraffin wax or the like is 0.5-15 wt.% in the emulsion and the amount of the emulsifying agent such as ammonium stearate or the like is 0.5-15 wt.% in the emulsion.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は爆薬組成物に関す
る。更に、詳しくは本発明は隧道掘進、採石、採鉱等の
産業用の***作業に利用される油中水滴型(以下W/O
型と云う)エマルション爆薬組成物に関するものであ
る。
FIELD OF THE INVENTION The present invention relates to explosive compositions. More specifically, the present invention relates to a water-in-oil type (hereinafter referred to as W / O) used for industrial blasting operations such as tunnel excavation, quarrying, and mining.
Emulsion explosive compositions).

【0002】[0002]

【従来の技術】W/O型エマルション爆薬は米国特許第
3,161,551号により初めて公開されて以来多数
の改良発明が行われて来た。これらの発明によるW/O
型エマルション爆薬は、基本的には連続相として、ミネ
ラルオイル、ワックス、その他疎水性炭素質燃料(油
分)を含み、又不連続相として硝酸アンモニウムを主体
とした酸化剤水溶液を含み、更に乳化剤としてW/O型
乳化剤を含む爆薬であり、これに微小中空粒体等の鋭感
剤を随時加える事により、ブースター起爆から***起爆
までの広範囲の感度が得られている。これらのW/O型
エマルション爆薬は、連続相として油性物質が使用され
ている為、耐水性、安全性の点で従来の爆薬にない優れ
た性能を有している事は周知の事である。
BACKGROUND OF THE INVENTION Many improvements have been made to W / O emulsion explosives since they were first published in U.S. Pat. No. 3,161,551. W / O according to these inventions
The emulsion emulsion explosive basically contains mineral oil, wax, and other hydrophobic carbonaceous fuels (oil components) as a continuous phase, contains an oxidizer aqueous solution mainly composed of ammonium nitrate as a discontinuous phase, and contains W as an emulsifier. This is an explosive containing an / O type emulsifier, and by adding a sensitizer such as a fine hollow particle to the explosive as needed, a wide range of sensitivity from a booster detonation to a primer detonation is obtained. It is well known that these W / O type emulsion explosives have excellent performance that conventional explosives do not have in water resistance and safety because oily substances are used as a continuous phase. .

【0003】[0003]

【発明が解決しようとする課題】W/O型エマルション
爆薬は、通常、先ず酸化剤水溶液、油類、乳化剤によっ
てW/O型エマルションを製造し、それに中空体を加え
て混合することによって製造される。W/O型エマルシ
ョン爆薬は、連続相に油性物質を使用している為、耐水
性及び安全性の点において優れているが、反面W/O型
エマルション爆薬の粘度は一般に極めて高く通常グリー
ス状の性状を有しているので、紙巻きもしくはポリチュ
ーブによる包装体して取り扱われている。そして発破孔
への装填は、通常包装したW/O型エマルション爆薬を
そのまま1本ずつ作業者の手で挿入している状況であ
る。
A W / O emulsion explosive is usually produced by first preparing a W / O emulsion using an aqueous solution of an oxidizing agent, oils and an emulsifier, adding a hollow body thereto and mixing. You. W / O emulsion explosives are excellent in terms of water resistance and safety because an oily substance is used in the continuous phase, but the viscosity of W / O emulsion explosives is generally extremely high, and is usually a grease-like one. Since it has properties, it is handled as a package with a paper roll or a poly tube. The loading into the blast holes is a situation in which the normally packed W / O type emulsion explosives are inserted one by one by the operator's hand.

【0004】硝安油剤爆薬のように粒状の形態を成す爆
薬では、***現場の発破孔内に容易に流し込んだり、又
はエアローダーによる吹き込み充填による装填作業が可
能であり、***現場の作業者の装填作業の負担を減らす
一因となっている。その反面、硝安油剤爆薬は耐水性が
なく、後ガスが悪いなどの欠点がある為に、湿潤孔又は
水孔で使用すると、その成分である硝酸アンモニウムが
水に溶解して爆発性がなくなり、不爆になることがよく
ある。又、トンネルで使用すると、換気に十分時間を必
要とするので、後ガスにより作業者の作業性を悪くする
一因となっている。したがって、硝安油剤爆薬は使用で
きる***現場は制限されている。
In the case of explosives having a granular form such as an ammonium nitrate explosive, it can be easily poured into a blast hole at a blasting site or loaded by blowing and filling with an air loader. This contributes to reducing the work load. On the other hand, ammonium nitrate explosives have disadvantages such as lack of water resistance and poor post-gas, and when used in wet or water holes, ammonium nitrate as a component dissolves in water and loses explosive properties. Often it becomes an explosion. Further, when used in a tunnel, sufficient time is required for ventilation, and this is one factor that deteriorates the workability of the operator due to the post-gas. Therefore, the blasting sites where nitric acid explosives can be used are limited.

【0005】W/O型エマルション爆薬は、先述のよう
に耐水性及び安全性に優れているので、***現場での使
用頻度は多い。しかし、発破孔への装填において作業者
の負担が大きいので、W/O型エマルション爆薬を硝安
油剤爆薬のような装填方法ができる形態にすることが要
望されている。
[0005] Since the W / O emulsion explosive is excellent in water resistance and safety as described above, it is frequently used at a blasting site. However, since the burden on an operator is large when loading the blast holes, it is desired that the W / O type emulsion explosive be in a form that can be loaded like a nitrate oil explosive.

【0006】[0006]

【課題を解決するための手段】本発明者等は、W/O型
エマルション爆薬を直接発破孔に流し込んだり、エアロ
ーダーによる吹き込み装填ができる様な形態にすべく鋭
意研究を重ねた結果、W/O型エマルションと2種類の
中空体とを所定量ずつ混合し、粒状化することにより、
発破孔に直接装填できる爆薬にする事が出来る事を見い
出し本発明を完成させたものである。
Means for Solving the Problems The present inventors have conducted intensive studies to form a W / O type emulsion explosive into a form that can be directly poured into a blast hole or blow-loaded by an air loader. By mixing a predetermined amount of the / O type emulsion and two types of hollow bodies, and granulating,
The inventor has found that it can be made into an explosive that can be directly loaded into a blast hole, and has completed the present invention.

【0007】即ち本発明は(1)酸化剤水溶液、油類、
乳化剤を含有する油中水滴型エマルションに該油中水滴
型エマルションに対して粒径0.01〜0.3mmの中空
体を1〜20重量%、粒径0.3〜5.0mmの中空体を
同じく1〜40重量%をそれぞれ添加し、粒状に成型し
てなる油中水型エマルション爆薬組成物、(2)油中水
型エマルション爆薬組成物が粒径0.3〜20.0mm
の粒状である(1)に記載の油中水型エマルション爆薬
組成物、(3)粒径0.01〜0.3mmを有する中空体
がガラスマイクロバルーン又は樹脂マイクロバルーンで
あることを特徴とする(1)に記載の油中水型エマルシ
ョン爆薬組成物、(4)粒径0.3〜5.0mmを有する
中空体がガラス、シラス、珪砂、火山岩、ケイ酸ナトリ
ウム、アルミナ、頁岩、ホウ砂、真珠岩、黒曜岩等から
得られる無機質中空体、セラミック製バルーン、及び発
泡スチレン、発泡ポリスチレン、発泡ポリプロピレン、
発泡ウレタン、発泡ポリ塩化ビニルや発泡ゴムから選ば
れる有機気泡集合体である(1)に記載の油中水型エマ
ルション爆薬組成物、に関する。
That is, the present invention provides (1) an oxidizing agent aqueous solution, oils,
A water-in-oil emulsion containing an emulsifier, 1 to 20% by weight of a hollow body having a particle size of 0.01 to 0.3 mm with respect to the water-in-oil emulsion, and a hollow body having a particle size of 0.3 to 5.0 mm The water-in-oil emulsion explosive composition is formed by adding 1 to 40% by weight of each of the above, and is molded into granules. (2) The water-in-oil emulsion explosive composition has a particle size of 0.3 to 20.0 mm.
The water-in-oil emulsion explosive composition according to (1), wherein the hollow body having a particle size of 0.01 to 0.3 mm is a glass microballoon or a resin microballoon. (1) a water-in-oil emulsion explosive composition according to (1), (4) a hollow body having a particle size of 0.3 to 5.0 mm is made of glass, shirasu, quartz sand, volcanic rock, sodium silicate, alumina, shale, borax , Mineral hollow bodies obtained from perlite, obsidian, etc., ceramic balloons, and expanded styrene, expanded polystyrene, expanded polypropylene,
The invention relates to the water-in-oil emulsion explosive composition according to (1), which is an organic foam aggregate selected from foamed urethane, foamed polyvinyl chloride, and foamed rubber.

【0008】本発明を詳細に説明する。本発明に使用さ
れるW/O型エマルションは、酸化剤水溶液、油類及び
乳化剤を含有し、内部不連続相を形成する酸化剤水溶液
の微細な液滴を外部連続相を形成する油類が乳化剤の乳
化力によって、薄い膜で覆うエマルション構造を有して
いる。
The present invention will be described in detail. The W / O emulsion used in the present invention contains an oxidizing agent aqueous solution, oils and an emulsifier, and fine droplets of the oxidizing agent aqueous solution forming an internal discontinuous phase are converted into oils forming an external continuous phase. It has an emulsion structure covered with a thin film by the emulsifying power of the emulsifier.

【0009】本発明に使用されるW/O型エマルション
を調製するための酸化剤水溶液は硝酸アンモニウム、ア
ルカリ金属硝酸塩類、アルカリ土類金属硝酸塩類、アル
カリ金属塩素酸塩類、アルカリ土類金属塩素酸塩類、ア
ルカリ金属過塩素酸塩類、アルカリ土類金属過塩素酸塩
類、過塩素酸アンモニウムを単独又は混合して水に溶解
させたものである。
The aqueous solution of the oxidizing agent for preparing the W / O emulsion used in the present invention includes ammonium nitrate, alkali metal nitrates, alkaline earth metal nitrates, alkali metal chlorates, alkaline earth metal chlorates. , Alkali metal perchlorates, alkaline earth metal perchlorates, and ammonium perchlorate alone or in combination and dissolved in water.

【0010】又、本発明に用いられる酸化剤水溶液には
硝酸モノメチルアミン、硝酸モノエチルアミン、硝酸ヒ
ドラジン、二硝酸ジメチルアミン等の水溶性アミン硝酸
塩類、硝酸メタノールアミン、硝酸エタノールアミン等
の水溶性アルカノールアミン硝酸塩類及び水溶性の一硝
酸エチレングリコール等を補助鋭感剤として使用する事
が可能である。
The aqueous solution of the oxidizing agent used in the present invention includes water-soluble amine nitrates such as monomethylamine nitrate, monoethylamine nitrate, hydrazine nitrate and dimethylamine dinitrate, and water-soluble alkanols such as methanolamine nitrate and ethanolamine nitrate. Amine nitrates and water-soluble ethylene glycol mononitrate can be used as auxiliary sensitizers.

【0011】該酸化剤水溶液中に於ける水の含有量は酸
化剤の結晶析出温度が30〜90℃になる範囲で使用さ
れる事が好ましく、通常酸化剤水溶液に5〜40重量
%、好ましくは、7〜30重量%含有される。酸化剤水
溶液を調製するに当たっては、結晶析出温度を下げる為
にメチルアルコール、エチルアルコール、ホルムアマイ
ド、エチレングリコール、グリセリン等の水溶性有機溶
剤を補助溶媒として使用可能である。
The content of water in the oxidizing agent aqueous solution is preferably such that the crystal deposition temperature of the oxidizing agent is in the range of 30 to 90 ° C., usually 5 to 40% by weight in the oxidizing agent aqueous solution, preferably Is contained in an amount of 7 to 30% by weight. In preparing the oxidizing agent aqueous solution, a water-soluble organic solvent such as methyl alcohol, ethyl alcohol, formamide, ethylene glycol, and glycerin can be used as an auxiliary solvent in order to lower the crystallization temperature.

【0012】本発明では酸化剤水溶液は油中水型エマル
ション爆薬組成物中に60〜98重量%、好ましくは8
0〜95重量%の範囲で含有される。
In the present invention, the aqueous oxidizing agent solution is contained in the water-in-oil emulsion explosive composition at 60 to 98% by weight, preferably 8% by weight.
It is contained in the range of 0 to 95% by weight.

【0013】本発明で用いられる油類としては、軽油、
灯油、ミネラルオイル、潤滑油、重油等の石油系油類、
パラフィンワックス、マイクロクリスタリンワックス等
の石油系ワックス類、その他疎水性の植物油、植物性ワ
ックス、動物油、動物性ワックスの単独または2種以上
の混合物が使用される。また、上述の油類にエポキシ樹
脂、不飽和ポリエステル樹脂、ポリブテン、ポリイソブ
チレン、石油樹脂、ブタジエン樹脂、エチレン酢酸ビニ
ル共重合体、ポリエチレン樹脂等の樹脂類を配合し変成
した油類も使用できる。これらの油類の使用量は、W/
O型エマルション中0.5〜15重量%、好ましくは1
〜10重量%の範囲で含有される。
The oils used in the present invention include light oil,
Petroleum oils such as kerosene, mineral oil, lubricating oil, heavy oil,
Petroleum waxes such as paraffin wax and microcrystalline wax, and other hydrophobic vegetable oils, vegetable waxes, animal oils, and mixtures of two or more of animal waxes are used. In addition, oils modified by mixing resins such as epoxy resin, unsaturated polyester resin, polybutene, polyisobutylene, petroleum resin, butadiene resin, ethylene vinyl acetate copolymer, and polyethylene resin with the above oils can also be used. The amount of these oils used is W /
0.5 to 15% by weight, preferably 1%, in the O-type emulsion
-10% by weight.

【0014】本発明に用いられる乳化剤は通常、W/O
型エマルション生成に使用される乳化剤、例えば、ステ
アリン酸アルカリ金属塩、ステアリン酸アンモニウム
塩、ステアリン酸カルシウム塩、ポリオキシエチレンエ
ーテル、ソルビタン脂肪酸エステル類、ソルビトール脂
肪酸エステル、グリセリン脂肪酸エステル類の単独又は
これらの混合物が使用される。本発明に用いられる乳化
剤は、W/O型エマルション中に0.5〜15重量%、
好ましくは1〜10重量%の範囲で含有される。
The emulsifier used in the present invention is usually W / O
Emulsifiers used in the production of emulsions, for example, alkali metal stearate, ammonium stearate, calcium stearate, polyoxyethylene ether, sorbitan fatty acid esters, sorbitol fatty acid esters, glycerin fatty acid esters, or a mixture thereof Is used. The emulsifier used in the present invention is 0.5 to 15% by weight in the W / O emulsion,
Preferably, it is contained in the range of 1 to 10% by weight.

【0015】本発明に使用されるW/O型エマルション
にはアルミ粉、マグネシウム粉等の金属粉末、木粉、澱
粉等の有機粉末の添加も可能である。
The W / O emulsion used in the present invention may contain metal powders such as aluminum powder and magnesium powder, and organic powders such as wood powder and starch.

【0016】本発明に使用されるW/O型エマルション
は油中水型エマルション爆薬組成物に50〜98重量
%、好ましくは70〜95の範囲で含有される。
The W / O emulsion used in the present invention is contained in the water-in-oil emulsion explosive composition in an amount of 50 to 98% by weight, preferably 70 to 95%.

【0017】本発明に使用される2種類の中空体のうち
一方は、ガラス又は樹脂製の微小中空体を使用するのが
好ましく、W/O型エマルション爆薬の鋭感化の為に使
用する。その粒径は0.01〜0.3mm、好ましくは
0.02〜0.15mmである。このような中空体は、
W/O型エマルション爆薬組成物に対して1〜40重量
%、好ましくは1〜10重量%の範囲で含有される。
One of the two types of hollow bodies used in the present invention is preferably a fine hollow body made of glass or resin, which is used for sharpening a W / O type emulsion explosive. The particle size is 0.01 to 0.3 mm, preferably 0.02 to 0.15 mm. Such a hollow body,
It is contained in the range of 1 to 40% by weight, preferably 1 to 10% by weight, based on the W / O emulsion explosive composition.

【0018】本発明に使用される2種類の中空体のうち
のもう1方は、粒径が0.3〜5.0mm、好ましくは
0.3〜2.0mmであるガラス、シラス、珪砂、火山
岩、ケイ酸ナトリウム、アルミナ、頁岩、ホウ砂、真珠
岩、黒曜岩等から得られる無機質中空体、セラミック製
バルーン及び発泡スチレン等が使用される。爆薬の経時
変化の観点からすると、無機質のものがより好ましい。
この中空体は、中空体の周りにW/O型エマルションを
覆わせる為の核として使用する。
The other of the two types of hollow bodies used in the present invention is glass, shirasu, silica sand having a particle size of 0.3 to 5.0 mm, preferably 0.3 to 2.0 mm. Inorganic hollow bodies obtained from volcanic rock, sodium silicate, alumina, shale, borax, perlite, obsidian, etc., ceramic balloons, expanded styrene and the like are used. From the viewpoint of the change over time of the explosive, an inorganic material is more preferable.
This hollow body is used as a core for covering the W / O emulsion around the hollow body.

【0019】本発明のW/O型エマルション爆薬組成物
の粒状化は、30〜90℃になる範囲で加温されたW/
O型エマルションと前記2種類の中空体と混合したのち
常温下まで冷却する。そして、固形状態になってW/O
型エマルション爆薬組成物を1〜50メッシュの篩を用
いて篩分を行い、ついで造粒機等の機器を用いてで粒状
化を行う。本発明のW/O型エマルション爆薬組成物
は、通常粒径0.3〜20.0mmの大きさに調製され
る。これに粉末状の爆薬を添加して使用することも可能
であるが、本発明のW/O型エマルション爆薬組成物の
含有率が爆薬の30重量%以上でないと所期の目的は達
しない。
The granulation of the W / O emulsion explosive composition of the present invention is carried out by heating the W / O emulsion explosive composition to a temperature of 30 to 90 ° C.
After mixing the O-type emulsion and the two kinds of hollow bodies, the mixture is cooled to room temperature. And it becomes a solid state and becomes W / O
The type emulsion explosive composition is sieved using a 1 to 50 mesh sieve, and then granulated using a device such as a granulator. The W / O emulsion explosive composition of the present invention is usually prepared to have a particle size of 0.3 to 20.0 mm. It is also possible to use a powder explosive added thereto, but the intended purpose cannot be achieved unless the content of the W / O emulsion explosive composition of the present invention is 30% by weight or more of the explosive.

【0020】本発明のW/O型エマルション爆薬組成物
は粒状化が容易であり、得られた粒状のW/O型エマル
ション爆薬組成物は発破孔への装填が容易であるという
特徴を有する。
The W / O emulsion explosive composition of the present invention is characterized in that it can be easily granulated, and that the obtained granular W / O emulsion explosive composition can be easily loaded into a blast hole.

【0021】実施例 本発明を実施例を挙げて、更に詳しく説明する。以下に
おいて、部は重量部を意味する。
EXAMPLES The present invention will be described in more detail with reference to examples. In the following, parts mean parts by weight.

【0022】実施例1 粒状硝安(住友化学工業(株)製)70部、硝酸ナトリ
ウム(宇部興産(株)製)13.5部と水10部からな
る90℃の酸化剤水溶液を予め90℃に加熱溶解混合し
たソルビタンモノオレート(三洋化成(株)製)2.5
部とマイクロクリスタリンワックス(日本精蝋(株)
製、商品名HiMic2065)4.0部の混合物に撹
拌しながら少量ずつ加え、W/O型エマルションを得
た。このW/O型エマルション75.0部、ガラスバブ
ルス(住友3M社製、商品名K−20)5.0部とシラ
スバルーン((株)シラックスウ製、商品名SILAX
P−30)20.0部を卓上型ニーダー((株)入江
商会製、全容量5L)で十分混合し、W/O型エマルシ
ョン爆薬を得た。この爆薬を室温まで冷却した後、造粒
機(深江工業(株)製、ハイスピードミキサー)で粒状
化を行い、粒状エマルジョン爆薬を得た。
Example 1 A 90 ° C. aqueous solution of an oxidizing agent consisting of 70 parts of granular ammonium nitrate (manufactured by Sumitomo Chemical Co., Ltd.), 13.5 parts of sodium nitrate (manufactured by Ube Industries, Ltd.) and 10 parts of water was previously heated to 90 ° C. Sorbitan monooleate (manufactured by Sanyo Chemical Co., Ltd.) 2.5
And microcrystalline wax (Nippon Seiro Co., Ltd.)
(Trade name, HiMic 2065) was added little by little to the mixture with stirring to obtain a W / O emulsion. 75.0 parts of this W / O type emulsion, 5.0 parts of glass bubbles (manufactured by Sumitomo 3M, trade name K-20) and Shirasu balloon (trade name, SILAX CORPORATION, trade name SILAX)
20.0 parts of P-30) was sufficiently mixed with a table type kneader (manufactured by Irie Shokai Co., Ltd., total volume: 5 L) to obtain a W / O emulsion explosive. After cooling this explosive to room temperature, it was granulated with a granulator (Fukae Kogyo Co., Ltd., high speed mixer) to obtain a granular emulsion explosive.

【0023】実施例2 W/O型エマルション爆薬は実施例1と同じ組成、方法
で得た。そして、W/O型エマルション90.0部、ガ
ラスバブルス(住友3M社製、商品名K−20)5.0
部、シラスバルーン((株)シラックスウ製、商品名S
ILAX P−30)5.0部を卓上型ニーダーで十分
混合し、W/O型エマルジョン爆薬を得た。この爆薬を
実施例1と同じ造粒機を用いて粒状エマルジョン爆薬を
得た。
Example 2 A W / O emulsion explosive was obtained by the same composition and method as in Example 1. Then, 90.0 parts of W / O type emulsion, 5.0 parts of glass bubbles (trade name K-20, manufactured by Sumitomo 3M).
, Shirasu Balloon (Silax Co., Ltd., trade name S)
5.0 parts of ILAX P-30) were sufficiently mixed with a tabletop kneader to obtain a W / O emulsion explosive. Using this explosive, the same granulator as in Example 1 was used to obtain a granular emulsion explosive.

【0024】実施例3 W/O型エマルション爆薬は実施例1と同じ組成、方法
で得た。そして、W/O型エマルション55.0部、ガ
ラスバブルス(住友3M社製、商品名K−20)5.0
部、シラスバルーン((株)シラックスウ製、商品名S
ILAX P−30)40.0部を卓上型ニーダーで十
分混合し、W/O型エマルジョン爆薬を得た。この爆薬
を実施例1と同じ造粒機を用いて粒状エマルジョン爆薬
を得た。
Example 3 A W / O emulsion explosive was obtained by the same composition and method as in Example 1. Then, 55.0 parts of W / O type emulsion, 5.0 of glass bubbles (K-20, manufactured by Sumitomo 3M).
, Shirasu Balloon (Silax Co., Ltd., trade name S)
40.0 parts of ILAX P-30) were sufficiently mixed with a tabletop kneader to obtain a W / O emulsion explosive. Using this explosive, the same granulator as in Example 1 was used to obtain a granular emulsion explosive.

【0025】実施例4 W/O型エマルションは実施例1と同じ組成、方法で得
た。そして、W/O型エマルション92.1部、ガラス
バブルス(住友3M社製、商品名K−20)6.1部と
粒状発泡スチレン(三菱油化バーディッシェ(株)製)
1.8部を十分混合し、W/O型エマルション爆薬を得
た。この爆薬を実施例1と同じ方法で粒状化を行い、粒
状エマルジョンを得た。
Example 4 A W / O emulsion was obtained by the same composition and method as in Example 1. Then, 92.1 parts of a W / O emulsion, 6.1 parts of glass bubbles (manufactured by Sumitomo 3M, trade name K-20) and granular foamed styrene (manufactured by Mitsubishi Yuka Birdish Co., Ltd.)
1.8 parts were sufficiently mixed to obtain a W / O emulsion explosive. This explosive was granulated in the same manner as in Example 1 to obtain a granular emulsion.

【0026】比較例1 粒状硝安(住友化学工業(株)製)76.30部、硝酸
ナトリウム(宇部興産(株)製)4.57部と水11.
05部からなる90℃の酸化剤水溶液を予め90℃に加
熱溶解混合したソルビタンモノオレート(三洋化成
(株)製)1.75部と流動パラフィン(エッソ石油
(株)製、商品名クリストール70)3.41部の混合
物に撹拌しながら少量ずつ加え、W/O型エマルション
を得た。W/O型エマルション97.08部、ガラスバ
ブルス(住友3M社製、商品名K−20)2.92部を
卓上型ニーダーで十分混合し、W/O型エマルジョン爆
薬を得た。この爆薬を室温まで冷却した後、実施例1と
同様の造粒機でW/O型エマルジョン爆薬の粉砕を行っ
たが、薬質の粘性が高い為に、造粒機の容器周辺に付着
して裁断が行えず、粒状化したW/O型エマルションを
得ることは出来なかった。
Comparative Example 1 76.30 parts of granular ammonium nitrate (manufactured by Sumitomo Chemical Co., Ltd.), 4.57 parts of sodium nitrate (manufactured by Ube Industries), and 11.1 parts of water.
1.75 parts of sorbitan monooleate (manufactured by Sanyo Chemical Co., Ltd.) prepared by preliminarily heating and dissolving a 90 ° C. oxidizing agent aqueous solution of 90 parts at 90 ° C. and liquid paraffin (manufactured by Esso Oil Co., Ltd., product name: Christol 70) ) The mixture was added little by little to 3.41 parts of the mixture while stirring to obtain a W / O emulsion. 97.08 parts of the W / O emulsion and 2.92 parts of Glass Bubbles (trade name K-20, manufactured by Sumitomo 3M) were sufficiently mixed with a desktop kneader to obtain a W / O emulsion explosive. After the explosive was cooled to room temperature, the W / O emulsion explosive was pulverized using the same granulator as in Example 1. However, because of the high viscosity of the drug, the explosive adhered around the container of the granulator. As a result, it was not possible to obtain a granulated W / O emulsion.

【0027】実施例1〜4及び比較例1の特性を確認す
るために以下の試験を行った。
The following tests were performed to confirm the characteristics of Examples 1 to 4 and Comparative Example 1.

【0028】第1の試験:内径50mm、外径60m
m、長さ5mの透明なポリアクリル製パイプを用意し、
パイプの一端の中に実施例1〜4及び比較例1の爆薬を
配置した。ただし、比較例1は造粒機で粒状化が行えな
かったので、手作業で直径1〜5mmの粒状を作成し配
置した。扇風機を用いて、パイプの外側からパイプ中に
伝わるように風速2m/sの空気を送風し、爆薬がパイ
プ中を飛遊するか観察した。その結果、実施例1〜4は
パイプ中を動いているが、比較例1はパイプと付着して
おり、静置したままであった。
First test: inner diameter 50 mm, outer diameter 60 m
m, prepare a transparent polyacrylic pipe with a length of 5m,
The explosives of Examples 1 to 4 and Comparative Example 1 were arranged in one end of the pipe. However, in Comparative Example 1, since granulation could not be performed by the granulator, granules having a diameter of 1 to 5 mm were manually prepared and arranged. Using a fan, air with a wind speed of 2 m / s was blown from the outside of the pipe to the inside of the pipe, and it was observed whether explosives flew through the pipe. As a result, while Examples 1 to 4 were moving in the pipe, Comparative Example 1 was attached to the pipe and was left standing.

【0029】第2の試験:実施例1〜4及び比較例1の
爆薬をビニル袋に入れ、内径40mm、外径50mm、
長さ600mmの鉄管を発破孔に見立てて、ビニル袋か
ら直接鉄管に流し込み装填を行った。実施例1〜4は、
流動性が良好で容易に鉄管中に装填することが可能であ
った。比較例1は薬質の粘着性より、ビニル袋に付着し
たり、又は粒状化した爆薬どうしで付着し塊となる為に
装填するのが困難であることが確認された。
Second test: The explosives of Examples 1 to 4 and Comparative Example 1 were put in a vinyl bag, and the inner diameter was 40 mm, the outer diameter was 50 mm,
An iron tube having a length of 600 mm was regarded as a blast hole, and was directly poured into the iron tube from a vinyl bag and charged. Examples 1 to 4
It had good flowability and could be easily loaded into an iron tube. It was confirmed that Comparative Example 1 was difficult to be loaded because it adhered to a vinyl bag or adhered to each other by granulated explosives to form a lump due to the adhesiveness of the drug substance.

【0030】実施例1〜4及び比較例1の特性試験の結
果を表1にまとめた。
The results of the characteristic tests of Examples 1 to 4 and Comparative Example 1 are summarized in Table 1.

【0031】[0031]

【表1】 表1各エマルション爆薬の性能 実施例 比較例 1 2 3 4 1 粒状化 ○ ○ ○ ○ × 比重(g/cc) 0.56 0.91 0.40 0.44 1.09 流動性 ○ ○ ○ ○ × 装填の容易さ ○ ○ ○ ○ ×[Table 1] Table 1 Performance of each emulsion explosive Example Comparative Example 1 2 3 4 1 Granulation ○ ○ ○ ○ × Specific gravity (g / cc) 0.56 0.91 0.40 0.44 1.09 Fluidity ○ ○ ○ ○ × Ease of loading ○ ○ ○ ○ ×

【0032】本発明による実施例により、W/O型エマ
ルションに一種類の微小中空体だけでなく、粒径の異な
るもう一種類の中空体を付加することにより、爆薬の性
能を保持しながら粒状化が可能であることは明白であ
る。
According to the embodiment of the present invention, not only one kind of fine hollow body but also another kind of hollow body having a different particle size is added to the W / O type emulsion, thereby maintaining the performance of the explosive. Obviously, this is possible.

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】酸化剤水溶液、油類、乳化剤を含有する油
中水滴型エマルションに該油中水滴型エマルションに対
して粒径0.01〜0.3mmの中空体を1〜20重量
%、粒径0.3〜5.0mmの中空体を同じく1〜40重
量%をそれぞれ添加し、粒状に成型してなる油中水型エ
マルション爆薬組成物。
1. A water-in-oil emulsion containing an aqueous solution of an oxidizing agent, oils and an emulsifier, 1 to 20% by weight of a hollow body having a particle size of 0.01 to 0.3 mm based on the water-in-oil emulsion. A water-in-oil emulsion explosive composition obtained by adding a hollow body having a particle size of 0.3 to 5.0 mm and also adding 1 to 40% by weight of the same, and forming the resultant into a granular form.
【請求項2】油中水型エマルション爆薬組成物が粒径
0.3〜20.0mmの粒状である請求項1に記載の油
中水型エマルション爆薬組成物。
2. The water-in-oil emulsion explosive composition according to claim 1, wherein the water-in-oil emulsion explosive composition is granular having a particle size of 0.3 to 20.0 mm.
【請求項3】粒径0.01〜0.3mmを有する中空体が
ガラスマイクロバルーン又は樹脂マイクロバルーンであ
ることを特徴とする請求項1に記載の油中水型エマルシ
ョン爆薬組成物。
3. The water-in-oil emulsion explosive composition according to claim 1, wherein the hollow body having a particle size of 0.01 to 0.3 mm is a glass microballoon or a resin microballoon.
【請求項4】粒径0.3〜5.0mmを有する中空体がガ
ラス、シラス、珪砂、火山岩、ケイ酸ナトリウム、アル
ミナ、頁岩、ホウ砂、真珠岩、黒曜岩等から得られる無
機質中空球体、セラミック製バルーン、及び発泡スチレ
ン、発泡ポリスチレン、発泡ポリプロピレン、発泡ウレ
タン、発泡ポリ塩化ビニルや発泡ゴムから選ばれる有機
気泡集合体である請求項1に記載の油中水型エマルショ
ン爆薬組成物。
4. A hollow body having a particle size of 0.3 to 5.0 mm is obtained from glass, shirasu, quartz sand, volcanic rock, sodium silicate, alumina, shale, borax, perlite, obsidian, etc. The water-in-oil emulsion explosive composition according to claim 1, which is a spherical body, a ceramic balloon, and an organic foam aggregate selected from foamed styrene, foamed polystyrene, foamed polypropylene, foamed urethane, foamed polyvinyl chloride, and foamed rubber.
JP10609998A 1998-04-16 1998-04-16 Water-in-oil type emulsion explosive composition Pending JPH11292676A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10609998A JPH11292676A (en) 1998-04-16 1998-04-16 Water-in-oil type emulsion explosive composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10609998A JPH11292676A (en) 1998-04-16 1998-04-16 Water-in-oil type emulsion explosive composition

Publications (1)

Publication Number Publication Date
JPH11292676A true JPH11292676A (en) 1999-10-26

Family

ID=14425087

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10609998A Pending JPH11292676A (en) 1998-04-16 1998-04-16 Water-in-oil type emulsion explosive composition

Country Status (1)

Country Link
JP (1) JPH11292676A (en)

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