JP2574188B2 - Blasting equipment - Google Patents
Blasting equipmentInfo
- Publication number
- JP2574188B2 JP2574188B2 JP28021390A JP28021390A JP2574188B2 JP 2574188 B2 JP2574188 B2 JP 2574188B2 JP 28021390 A JP28021390 A JP 28021390A JP 28021390 A JP28021390 A JP 28021390A JP 2574188 B2 JP2574188 B2 JP 2574188B2
- Authority
- JP
- Japan
- Prior art keywords
- cooling water
- bag
- explosive
- tubular bag
- lid
- 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.)
- Expired - Lifetime
Links
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Working Measures On Existing Buildindgs (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は主として、老朽化した高炉の改修を行うに際
して、炉内の残銑を発破により破壊する爆破装置に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention mainly relates to a blasting apparatus for destroying residual iron in a furnace by blasting when repairing an aging blast furnace.
（従来の技術） 高炉の炉床および炉壁は、外側から鉄皮、ステーブク
ーラ、耐火レンガを順次積層した構造を有するものであ
るが、耐火レンガの耐用年数は15年位であり、このた
め、定期的にその改修作業を行う必要がある。(Conventional technology) The hearth and the furnace wall of a blast furnace have a structure in which a steel shell, a stave cooler, and a refractory brick are sequentially laminated from the outside, but the service life of the refractory brick is about 15 years. It is necessary to perform the renovation work regularly.
この改修に際して、炉底には溶銑が残存して残銑とな
っているため、改修に先立ってこの残銑を冷却、固化さ
せているが、固化した時点での残銑は600℃以上の高温
であって且つその引張強度が2000〜3000kg/cm2、圧縮強
度はそれ以上もあり、撤去するのが非常に困難である。During this renovation, the hot metal remains at the furnace bottom and remains as iron, so this iron is cooled and solidified prior to the renovation. And its tensile strength is 2000-3000 kg / cm 2 , its compressive strength is more than that, it is very difficult to remove.
このため、従来から残銑に発破孔を穿設したのち、該
発破孔内に爆薬を装填して爆破させることにより、残銑
を破壊させることが行われている。Therefore, conventionally, after a blast hole is drilled in the residual iron, the explosive is charged in the blast hole and blasted to destroy the residual iron.
この際、高温の残銑のために、爆薬、特に雷管が爆発
する虞れがあるので、装薬する前に発破孔の孔壁を水で
冷却しているが、爆薬、雷管の耐熱温度以下に冷却させ
るには長時間を要し、作業能率が低下することになる。At this time, explosives, especially detonators, may explode due to high temperature residual iron.Before charging, the hole walls of the blast holes are cooled with water. It takes a long time to cool the work, and the work efficiency is reduced.
そこで、石綿などの断熱層を設けている紙筒内に爆
薬、雷管を装入したものを発破孔に装填する手段や、金
属製二重管の内管内部に爆薬、雷管を装入すると共に砂
等の込め物で密閉し、内外管の空間部に冷却水を供給し
ながら二重管を発破孔に挿入する手段が開発されてい
る。Therefore, explosives and primers are loaded into a blast hole with explosives and a detonator placed in a paper cylinder provided with an insulating layer of asbestos, etc. A means has been developed in which a double tube is inserted into a blast hole while the space is sealed with sand or the like and cooling water is supplied to the space between the inner and outer tubes.
（発明が解決しようとする課題） しかしながら、前者の手段によれば、石綿などの断熱
層では充分な断熱効果を得ることができなくて安全性に
難点があるばかりでなく、発破孔に対して確実な挿入が
可能にするには発破孔の径を筒径に比して充分に大径に
形成しておかねばならないために、孔の内壁と筒の外周
面間に空隙が形成され、発破効率が低下するという問題
点がある。(Problems to be Solved by the Invention) However, according to the former means, a heat insulating layer made of asbestos or the like cannot provide a sufficient heat insulating effect and has a problem in safety. To ensure reliable insertion, the diameter of the blast hole must be sufficiently large compared to the diameter of the cylinder, so a gap is formed between the inner wall of the hole and the outer peripheral surface of the cylinder, and blasting occurs. There is a problem that efficiency is reduced.
一方、後者の手段によれば、金属製の管を使用してい
るために、発破孔に僅かな曲がりが生じていても装入で
きなくなるものであり、そのため、前者の手段と同様に
孔径を大径にして装入を可能にすると、孔壁間に空隙が
形成されて発破効率が低下することになる。さらに、高
炉の側壁一部を撤去して残銑を露出させ、その残銑の側
面に上向きに傾斜した発破孔を穿設した場合、該発破孔
内に二重管を装入して内外管の空間部に冷却水を供給す
ると、冷却水の供給口と排出口とが該空間部の基端部に
直接連通しているために、戻り側の水が抜けてしまって
空間部に冷却水が充満しない場合が生じ、確実な冷却が
行われなくなって安全性に問題点が生じることになる。On the other hand, according to the latter means, since a metal tube is used, even if the blast hole has a slight bend, it cannot be charged. If the charging is made large, voids are formed between the hole walls, and the blasting efficiency is reduced. Furthermore, when removing part of the side wall of the blast furnace to expose the residual iron, and piercing a blast hole inclined upward on the side surface of the residual iron, a double pipe is inserted into the blast hole and the inner and outer pipes are inserted. When the cooling water is supplied to the space, the cooling water supply port and the discharge port communicate directly with the base end of the space, so that the water on the return side escapes and the cooling water flows into the space. May not be filled, and reliable cooling may not be performed, causing a problem in safety.
又、金属製二重管では重くて取扱い難く、作業性を低
下させるという問題点がある。Further, there is a problem that the metal double tube is heavy and difficult to handle, and the workability is reduced.
本発明はこのような問題点を全面的に解消し得る高炉
の残銑等の爆破装置の提供を目的とするものである。SUMMARY OF THE INVENTION An object of the present invention is to provide a blasting apparatus for blast furnace residual iron or the like which can completely solve such a problem.
（課題を解決するための手段） 上記目的を達成するために、本発明の爆破装置は、先
端が密閉した可撓性と水封性を有する細長筒状袋体の前
半部内に爆薬を装填すると共に該筒状袋体の基端開口部
を蓋体により密閉し、この蓋体に長尺管と短尺管とを貫
通状態に装着すると共に長尺管の前端開口部を上記筒状
袋体の前端内面に臨ませて一方の管からこの筒状袋体内
に冷却水を供給することにより筒状袋体を冷却水で膨張
させた状態にして他方の管から排出させるようにし、さ
らに、前記爆薬の脚線を密閉蓋体を貫通させて外部に導
出させた構造を有するものである。(Means for Solving the Problems) In order to achieve the above object, a blasting device of the present invention loads an explosive into the front half of an elongated tubular bag having a flexible and water-tight sealing end. At the same time, the base end opening of the tubular bag is sealed with a lid, a long tube and a short tube are attached to the cover in a penetrating state, and the front end opening of the long tube is sealed with the cylindrical bag. By supplying cooling water into the tubular bag body from one tube facing the inner surface of the front end, the tubular bag body is inflated with the cooling water and discharged from the other tube, and further, the explosive Have a structure in which the leg lines are led out through the closed lid.
（作用） 筒状袋体の基端から突出した冷却水供給管と排出管
に、夫々冷却水供給ホースと排出ホースを接続したの
ち、高炉の残銑適所に穿設している発破孔内に爆薬を装
填している筒状袋体を挿入する。(Function) After connecting the cooling water supply hose and the discharge hose to the cooling water supply pipe and the discharge pipe protruding from the base end of the cylindrical bag body, respectively, Insert the cylindrical bag loaded with explosives.
この時、冷却水供給管を筒状袋体内の先端部近傍にま
で配設しているので、この供給管を発破孔内に挿入する
ことによって筒状袋体を押し込むようにしながら一体的
に孔内に装入させることができると共に、筒状袋体は可
撓性を有する柔軟なシート材料より形成されているから
発破孔に曲がりが生じていても、該孔壁面に沿って径方
向に収縮変形しながら挿入される。At this time, since the cooling water supply pipe is disposed near the tip of the tubular bag body, the supply pipe is inserted into the blast hole so that the tubular bag body is pushed in while being pushed in. The cylindrical bag body is formed of a flexible sheet material having flexibility, so even if a blast hole is bent, it shrinks radially along the wall surface of the hole. It is inserted while deforming.
こうして筒状袋体を発破孔内に挿入しながら、或いは
挿入後直ちに冷却水供給ホースを通じて上記長尺管と短
尺管のいずれか一方の管に冷却水を供給すると、袋体内
に冷却水が充満して爆薬や雷管が冷却水中に没入状態に
なると共に袋体がその水圧により膨張して発破孔の孔壁
に全面的に密接し、この冷却水によって残銑側からの高
温を吸熱し、昇温した冷却水を他方の管を通じて外部に
排出しながら筒状袋体内に装填している爆薬や雷管を高
温残銑から断熱状態に保持するものである。When the cooling water is supplied to one of the long tube and the short tube through the cooling water supply hose while the cylindrical bag is inserted into the blast hole or immediately after the insertion, the cooling water is filled in the bag. As a result, the explosive and the primer go into the cooling water, and the bag expands due to the water pressure and comes into full contact with the hole wall of the blasting hole.The cooling water absorbs the high temperature from the residual pig iron side and rises. While discharging the heated cooling water to the outside through the other pipe, the explosives and the detonator loaded in the cylindrical bag body are kept insulated from the hot residual iron.
この状態にして袋体の後端から外部に突出している脚
線にリード線、母線を接続し、通電して爆薬を爆破させ
ることにより残銑の一部を破壊するものである。In this state, a lead wire and a bus bar are connected to legs protruding outside from the rear end of the bag body, and a portion of the residual pig iron is destroyed by blasting the explosive by energizing.
なお、本発明の爆破装置は、岩盤等の爆破にも使用で
きるものである。The blasting device of the present invention can also be used for blasting rock or the like.
（実 施 例） 本発明の実施例を図面について説明すると、（１）は
発破孔よりもやゝ大径で該発破孔の深さと同程度の長さ
に形成している細長円筒状の袋体で、耐熱繊維で織成し
てなる布地、或いは非透水性の耐熱合成樹脂シート材よ
り形成されてあり、耐熱繊維の布地よりなる場合には、
その内外周面に耐熱塗料を全面的に塗布して非透水性に
形成してある。(Embodiment) An embodiment of the present invention will be described with reference to the drawings. (1) An elongated cylindrical bag having a diameter slightly larger than a blast hole and having a length substantially equal to the depth of the blast hole. In the body, the fabric woven with heat-resistant fiber, or is formed from a non-water-permeable heat-resistant synthetic resin sheet material, if the heat-resistant fiber fabric,
A heat-resistant paint is applied to the entire inner and outer peripheral surfaces to form a water-impermeable material.
この筒状袋体（１）の前端は開口させることなく密閉
していると共に後端開口部に蓋体（２）を嵌め込み、該
蓋体（２）を被覆している袋体（１）の後端部をバンド
等の適宜な結着具（３）によって締着して蓋体（２）を
水密状態に取付け、該開口部をこの蓋体（２により密閉
しているものである。The front end of the tubular bag (1) is sealed without opening, and the cover (2) is fitted into the opening at the rear end of the bag (1) to cover the cover (2). The rear end portion is fastened by a suitable fastener (3) such as a band, and the lid (2) is attached in a watertight state, and the opening is sealed by the lid (2).
（４）は紙袋或いは紙筒内に封入された爆薬で、この
爆薬（４）を数個、剛直な鋼管製長尺冷却水供給管
（５）上に直列に配設してバンド等の適宜な結着具
（６）により長尺の冷却水供給管（５）の前部に一体に
固定されてあり、該供給管（５）を筒状袋体（１）内に
挿入することによってこれらの爆薬（４）は袋体（１）
の前部内に配設されてある。(4) is an explosive charged in a paper bag or a paper cylinder, and several explosives (4) are arranged in series on a rigid steel pipe long cooling water supply pipe (5), and an explosive such as a band is formed. The cooling water supply pipe (5) is integrally fixed to the front part of the long cooling water supply pipe (5) by a simple binding tool (6), and the supply pipe (5) is inserted into the cylindrical bag (1). Explosive (4) is a bag (1)
Located in the front of the
冷却水供給管（５）は、袋体（１）の内底面に敷設状
態で配設されていて、その開口前端を筒状袋体（１）の
前端内面近傍部に臨ませていると共に後端部は前記蓋体
（２）の外周下部を水密に貫通して外部に突出させてあ
り、突出端部に可撓性を有する冷却水供給ホース（７）
を着脱自在に連結させるようにしてある。The cooling water supply pipe (5) is laid on the inner bottom surface of the bag (1), and has an opening front end facing a portion near the front end inner surface of the tubular bag (1) and a rear end. The end of the cooling water supply hose (7) has a flexible end at the protruding end, which penetrates the lower part of the outer periphery of the lid (2) in a watertight manner and projects to the outside.
Are detachably connected.
（８）は蓋体（２）の外周上部に水密状態に貫通、支
持されている短尺の鋼管製冷却水排出管で、その内端部
を筒状袋体（１）の基端部内に突出、開口させていると
共に外端部を蓋体（２）から外部に突出させてあり、そ
の突出端に冷却水排出ホース（９）を着脱自在に連結さ
せてある。(8) is a short steel pipe cooling water discharge pipe which penetrates and is supported in a watertight manner at the upper part of the outer periphery of the lid (2), the inner end of which protrudes into the base end of the tubular bag (1). The cooling water discharge hose (9) is detachably connected to the protruding end of the opening and the outer end of the cooling water discharge hose (9).
（10）は最後部の爆薬（４）の後端に装着した雷管
で、蓋体外部から該蓋体（２）を水密に貫通して筒状袋
体（１）内に導入した脚線（11）の先端を該雷管（10）
に連結させてある。(10) is a detonator attached to the rear end of the last explosive (4), and a leg line (2) which penetrates the lid (2) from the outside of the lid in a watertight manner and is introduced into the tubular bag (1). 11) The tip of the primer (10)
It is connected to.
なお、上記実施例においては冷却水供給管を長尺管
に、冷却水排出管を短尺管に形成したが、これを逆な形
状にしてもよい。即ち、発破孔が上向きのときは短尺管
を冷却水供給管に、長尺管を冷却水排出管にする方が袋
体内に空気が残留しないので好ましい。In the above embodiment, the cooling water supply pipe is formed as a long pipe and the cooling water discharge pipe is formed as a short pipe. That is, when the blast hole is upward, it is preferable to use the short pipe as the cooling water supply pipe and the long pipe as the cooling water discharge pipe because air does not remain in the bag.
又、爆薬（４）を必ずしも長尺管に固定しなくても別
途蓋体を貫通する棒体を挿入してこの棒体に固定してお
いてもよい。Further, the explosive (4) does not necessarily have to be fixed to the long tube, but a rod penetrating the lid may be separately inserted and fixed to this rod.
このように構成した残銑爆破装置の使用態様を説明す
ると、老朽化して改修が必要な高炉（12）の一部の鉄皮
（13）とステーブクーラおよび耐火レンガ（14）を適宜
な機械的破壊等により除去して高炉内底部に堆積固結し
ている残銑（15）の一部を露出させる。The mode of use of the residual iron blasting apparatus configured as described above will be described. Part of the residual iron (15) that has been removed by destruction and deposited and solidified at the bottom of the blast furnace is exposed.
次いで、適宜な穿孔装置（図示せず）を使用して残銑
（15）に発破孔（16）を複数個穿設する。Next, a plurality of blast holes (16) are drilled in the residual iron (15) using an appropriate drilling device (not shown).
この発破孔（16）の径は、上記筒状袋体（１）の外径
が65mm位であれば、それよりも小径（65mm以下）に穿設
する。If the outer diameter of the cylindrical bag (1) is about 65 mm, the diameter of the blasting hole (16) is smaller than that (65 mm or less).
一方、内部に爆薬を装填している筒状袋体（１）の蓋
体（２）から突出している冷却水供給管（５）並びに排
出管（８）に夫々冷却水供給ホース（７）と排出ホース
（９）を接続し、しかるのち、この筒状袋体（１）を発
破孔（16）内に挿入する。On the other hand, a cooling water supply hose (7) is connected to a cooling water supply pipe (5) and a discharge pipe (8) projecting from a lid (2) of a tubular bag (1) in which an explosive is loaded. The discharge hose (9) is connected, and then the tubular bag (1) is inserted into the blast hole (16).
なお、筒状袋体（１）を発破孔（16）内に挿入する前
に供給管（５）を介して袋体（１）内に少量の水を入
れ、袋体（１）内の空気を除去しておくことが爆破効果
を高める上で望ましい。Before inserting the tubular bag (1) into the blast hole (16), a small amount of water is put into the bag (1) through the supply pipe (5), and the air in the bag (1) is removed. It is desirable to remove the blast in order to enhance the blasting effect.
筒状袋体（１）には、蓋体（２）を貫通してその先端
内部にまで上記冷却水供給管（５）を挿入していると共
に該供給管（５）の前部上に爆薬（４）を一体に配設し
ているので、蓋体（２）から後方に突出した該冷却水供
給管（５）を把持してこの供給管（５）を発破孔（16）
内に置き込むように挿入することにより、爆薬（４）を
介して押圧されながら発破孔（16）内に容易に挿入でき
ると共に筒状袋体（１）は柔軟な可撓性材料より形成さ
れているから、発破孔（16）の内壁に凹凸面や曲がりが
生じていても、何等の障害を受けることなく円滑に挿入
することができるものである。In the tubular bag (1), the cooling water supply pipe (5) is inserted through the lid (2) to the inside of the tip thereof, and the explosive is placed on the front of the supply pipe (5). Since the cooling water supply pipe (5) protruding rearward from the lid (2) is gripped, the supply pipe (5) is provided with the blast hole (16) because the (4) is integrally provided.
By being inserted into the blast hole, it can be easily inserted into the blast hole (16) while being pressed through the explosive (4), and the tubular bag (1) is formed of a flexible material. Therefore, even if the inner wall of the blast hole (16) has an uneven surface or a bend, the blast hole (16) can be inserted smoothly without any obstacle.
なお、発破孔（16）内に筒状袋体（１）を挿入するに
際して、該発破孔（16）内に水を注入してある程度該発
破孔（16）を冷却させたのち、筒状袋体（１）を挿入し
てもよい。又、冷却水排出管（８）にサーモラベル等の
温度検出手段を付設しておけば、挿入時或いは挿入後の
発破孔内温度を容易に検出、確認することができ、冷却
水の流量を調節することができるので好ましい。When the tubular bag (1) is inserted into the blast hole (16), water is injected into the blast hole (16) to cool the blast hole (16) to some extent, and then the cylindrical bag (1) is cooled. The body (1) may be inserted. If a temperature detecting means such as a thermo label is attached to the cooling water discharge pipe (8), the temperature inside the blast hole at the time of insertion or after insertion can be easily detected and confirmed, and the flow rate of the cooling water can be reduced. It is preferable because it can be adjusted.
この筒状袋体（１）を発破孔（16）内に挿入しなが
ら、或いは挿入後直ちに冷却水ホース（７）を通じて筒
状袋体（１）内の供給管（５）に冷却水を圧送すると、
冷却水が供給管（５）の先端から筒状袋体（１）内に注
入され、該筒状袋体（１）内に充満して爆薬（４）や雷
管（10）を該冷却水中に埋没させ、発破孔（16）側から
の高温に対して断熱作用を奏すると共に筒状袋体（１）
がその水圧によって外径方向に膨張して外周面を発破孔
（16）の内壁に全面的に密接させる。While the cylindrical bag (1) is inserted into the blast hole (16), or immediately after the insertion, the cooling water is fed to the supply pipe (5) in the cylindrical bag (1) through the cooling water hose (7). Then
Cooling water is injected into the tubular bag (1) from the end of the supply pipe (5), and the inside of the tubular bag (1) is filled and the explosive (4) and the primer (10) are put into the coolant. It is buried and has a heat insulating effect against the high temperature from the blast hole (16) side and a tubular bag (1).
Is expanded in the radial direction by the water pressure, and the outer peripheral surface is brought into close contact with the inner wall of the blast hole (16).
さらに、筒状袋体（１）内に注入、充満する冷却水
は、筒状袋体（１）に伝熱する残銑側からの高温を吸熱
しながら筒状袋体（１）内の後端に開口している排出管
（８）側に流動し、昇温しながら該排出管（８）から排
出ホース（９）を通じて外部に排出される。Further, the cooling water injected and filled into the tubular bag (1) absorbs the high temperature from the residual iron side that transfers heat to the tubular bag (1), while absorbing the high temperature from inside the tubular bag (1). It flows to the discharge pipe (8) side open at the end, and is discharged from the discharge pipe (8) to the outside through the discharge hose (9) while the temperature is raised.
このように、筒状袋体（１）内に注入されて流動する
冷却水によって該筒状袋体（１）内に装填している爆薬
（４）や雷管（10）を高温残銑から断熱状態に保持する
ものである。In this way, the explosive (4) and the primer (10) loaded in the tubular bag (1) are insulated from the hot iron residue by the cooling water flowing into the tubular bag (1) and flowing. It keeps the state.
なお、筒状袋体（１）内に注入される冷却水によって
該筒状袋体（１）に所望の膨張圧を生じさせ、発破孔
（16）の孔壁に筒状袋体（１）を密着させるために、冷
却水供給管（５）よりも排出管（８）を小径に形成する
か或いは排出側を適宜に絞る等の手段によって排出側の
圧力を高くなるように調節するものである。In addition, a desired inflation pressure is generated in the cylindrical bag (1) by the cooling water injected into the cylindrical bag (1), and the cylindrical bag (1) is formed on the hole wall of the blast hole (16). In order to bring the pressure into close contact, the discharge pipe (8) is formed to have a smaller diameter than the cooling water supply pipe (5), or the pressure on the discharge side is adjusted to be higher by means such as appropriately narrowing the discharge side. is there.
この状態にして筒状袋体（１）の蓋体（２）から外部
に突出している脚線（11）にリード線、母線（図示せ
ず）を接続し、通電して爆薬を爆破させることにより残
銑の一部を破壊させるものである。In this state, a lead wire and a bus bar (not shown) are connected to the legs (11) protruding from the lid (2) of the tubular bag (1) to the outside, and the explosive is detonated by energizing. This causes part of the residual iron to be destroyed.
又、この爆破装置は高炉の残銑の爆破のみならず、岩
盤等の爆破にも使用できることは勿論である。Further, this blasting apparatus can be used not only for blasting residual iron of a blast furnace, but also for blasting bedrock and the like.
（発明の効果） 以上のように本発明における爆破装置によれば、先端
が密閉した可撓性と水封性を有する細長筒状袋体の前半
部内に爆薬を装填すると共に該筒状袋体の基端開口部を
蓋体により密閉し、この蓋体に長尺管と短尺管とを貫通
状態に装着すると共に長尺管の前端開口部を上記筒状袋
体の前端内面に臨ませて一方の管から筒状袋体内に冷却
水を供給することにより筒状袋体を冷却水で膨張させた
状態にして他方の管から排出させるようにし、さらに、
上記爆薬の脚線を上記密閉蓋体を貫通させて外部に導出
させた構造を有しているので、長尺管は筒状袋体の基端
密閉蓋体を貫通して該筒状袋体内の前端内面まで挿入さ
れているから、この長尺管を手元操作しながら筒状袋体
を確実且つ円滑に発破孔内に挿入することができると共
に筒状袋体は可撓性を有する柔軟な材料より形成されて
いるから、発破孔の内壁に凹凸面や曲がりが生じていて
も何等の障害を受けることなく、該発破孔の内壁形状に
応じて収縮変形しながら容易に挿入することができるも
のである。(Effects of the Invention) As described above, according to the blasting device of the present invention, an explosive is loaded into the front half of an elongated cylindrical bag having flexibility and water-tightness whose tip is sealed, and the cylindrical bag is formed. The base end opening is sealed with a lid, and a long tube and a short tube are attached to the lid in a penetrating state, and the front end opening of the long tube faces the front end inner surface of the cylindrical bag. By supplying cooling water from one tube into the tubular bag body, the tubular bag body is expanded with the cooling water so as to be discharged from the other tube, and further,
Since the leg line of the explosive is penetrated through the hermetic lid and led out to the outside, the long tube penetrates through the base hermetic lid of the cylindrical bag and is closed inside the cylindrical bag. Is inserted up to the inner surface of the front end, so that the tubular bag can be reliably and smoothly inserted into the blast hole while operating the long tube at hand, and the tubular bag is flexible and flexible. Since it is made of a material, even if the inner wall of the blasting hole has an uneven surface or bend, it can be easily inserted while contracting and deforming according to the inner wall shape of the blasting hole without any obstacle. Things.
さらに、発破孔内への筒状袋体の挿入中、或いは挿入
後直ちに冷却水供給ホース通じて上記長尺管又は短尺管
のいずれか一方からなる供給管に冷却水を供給すると、
袋体内に冷却水が充満して爆薬や雷管が冷却水中に没入
された状態となり、残銑側からの高温伝熱を遮断するこ
とができると共に筒状袋体は可撓性を有しているので、
その内部に充満する冷却水の水圧によって膨張して発破
孔の孔壁との間に隙間を生じさせることなく該孔壁に全
面的に密接することができ、発破効率を著しく向上させ
ることができるものである。Further, during the insertion of the tubular bag into the blast hole, or immediately after the insertion, supplying cooling water to a supply pipe consisting of either the long pipe or the short pipe through a cooling water supply hose,
The bag is filled with cooling water and explosives and primers are immersed in the cooling water, which can block high-temperature heat transfer from the residual pig iron side and the tubular bag has flexibility. So
The pressure of the cooling water that fills the inside of the blast hole expands due to the water pressure, so that the blast hole can be brought into close contact with the hole wall without creating a gap between the hole wall and the blasting efficiency. Things.
又、長尺管又は短尺管のいずれか一方からなる冷却水
供給管から筒状袋体内に注入された冷却水は、筒状袋体
内に充満すると共に袋体内を前後方向に流動しながら他
方の管を通じて外部に排出され、その間に残銑側からの
高温を吸熱するので、筒状袋体内に装填している爆薬や
雷管を高温残銑から断熱状態に保持することができると
共に、爆薬と発破孔間の空隙部は筒状袋体内に充満する
冷却水によって全て置き換えられた状態となるから後ガ
スの発生を殆どなくすることができるばかりでなく、発
破効果を増大させることができ、その上、従来のように
詰めものを行わないので脚線を切断する虞れもなくなっ
て確実な発破作業が可能となるものである。In addition, the cooling water injected into the cylindrical bag from the cooling water supply pipe formed of either the long tube or the short tube fills the cylindrical bag and flows in the bag in the front-rear direction while the other flows. It is discharged to the outside through the pipe and absorbs the high temperature from the residual iron during this time, so that the explosives and primers loaded in the cylindrical bag can be kept insulated from the hot residual iron and blasted with the explosive. Since the voids between the holes are completely replaced by the cooling water filling the cylindrical bag body, not only the generation of post-gas can be almost eliminated, but also the blasting effect can be increased. In addition, since the padding is not performed as in the related art, there is no danger of cutting the leg line, and a reliable blasting operation can be performed.
さらに、発破孔が斜め上向き状態に穿設されている場
合においても、この発破孔内に挿入する筒状袋体を冷却
水の注入によって膨張させながら該袋体内に冷却水を充
満させることができるから、常に安全に発破作業を行う
ことができるものである。Further, even when the blasting hole is formed obliquely upward, the cylindrical bag inserted into the blasting hole can be filled with the cooling water while being expanded by injecting the cooling water. Therefore, the blasting operation can always be performed safely.
図面は本発明の実施例を示すもので、第１図は発破孔内
に挿入した状態の簡略縦断側面図、第２図は筒状袋体を
膨張させた状態の簡略縦断側面図、第３図は高炉の残銑
部分に穿設した発破孔内に挿入している状態の簡略横断
面図である。 （１）……筒状袋体、（２）……蓋体、（４）……爆
薬、（５）……冷却水供給管、（７）……冷却水供給ホ
ース、（８）……冷却水排出管、（10）……雷管、（1
1）……脚線、（16）……発破孔。BRIEF DESCRIPTION OF THE DRAWINGS The drawings show an embodiment of the present invention. FIG. 1 is a simplified vertical sectional side view showing a state where the tubular bag is inflated, FIG. The figure is a simplified cross-sectional view of a state where the blast furnace is inserted into a blast hole drilled in the remaining pig iron portion. (1) ... tubular bag, (2) ... lid, (4) ... explosive, (5) ... cooling water supply pipe, (7) ... cooling water supply hose, (8) ... Cooling water discharge pipe, (10)
1) Leg line, (16) Blast hole.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 石坂 幸生 大阪府大阪市阿倍野区松崎町２丁目２番 ２号 株式会社奥村組内 (72)発明者 古長 達広 大阪府大阪市阿倍野区松崎町２丁目２番 ２号 株式会社奥村組内 (72)発明者 稲岡 三樹彦 大阪府大阪市阿倍野区松崎町２丁目２番 ２号 株式会社奥村組内 (72)発明者 角田 龍範 大阪府大阪市阿倍野区松崎町２丁目２番 ２号 株式会社奥村組内 (72)発明者 吉川 賢治 大阪府大阪市阿倍野区松崎町２丁目２番 ２号 株式会社奥村組内 (56)参考文献 特開 昭63−150598（ＪＰ，Ａ) 実開 昭62−173000（ＪＰ，Ｕ) 実開 平１−178500（ＪＰ，Ｕ) ──────────────────────────────────────────────────の Continuing on the front page (72) Yukio Ishizaka, Inventor 2-2-2 Matsuzakicho, Abeno-ku, Osaka, Osaka Prefecture Inside Okumura Gumi Co., Ltd. (72) Tatsuhiro Furusana 2-chome, Matsuzakicho, Abeno-ku, Osaka, Osaka No. 2 No. 2 Okumura Gumi Co., Ltd. (72) Inventor Mikihiko Inaoka 2-2-2 Matsuzakicho, Abeno-ku, Osaka-shi, Osaka No. 2 No. 2 Okumura Guminai Co., Ltd. No. 2-2-2, Okumura Gumi Co., Ltd. (72) Inventor Kenji Yoshikawa 2-2-2 Matsuzaki-cho, Abeno-ku, Osaka-shi, Osaka (2) Okumura Gumi Co., Ltd. (56) References JP-A-63-150598 (JP, A) ) Japanese Utility Model Showa 62-173000 (JP, U) Japanese Utility Model Hei 1-178500 (JP, U)
Claims (2)
長筒状袋体の前半部内に爆薬を装填すると共に該筒状袋
体の基端開口部を蓋体により密閉し、この蓋体に長尺管
と短尺管とを貫通状態に装着すると共に長尺管の前端開
口部を上記筒状袋体の前端内面に臨ませて一方の管から
筒状袋体内に冷却水を供給することにより筒状袋体を冷
却水で膨張させた状態にして他方の管から排出させるよ
うにし、さらに、上記爆薬の脚線を上記密閉蓋体を貫通
させて外部に導出させていることを特徴とする爆破装
置。An explosive is loaded into the front half of a flexible and water-sealable elongated tubular bag having a sealed distal end, and a base opening of the tubular bag is sealed with a lid. A long tube and a short tube are attached to the lid in a penetrating state, and the front end opening of the long tube faces the inner surface of the front end of the cylindrical bag, and cooling water is supplied from one tube into the cylindrical bag. By doing so, the tubular bag body is inflated with cooling water so as to be discharged from the other pipe, and furthermore, the leg line of the explosive is penetrated through the hermetic lid and led out to the outside. Characteristic blasting equipment.
ることを特徴とする請求項記載の爆破装置。2. The blasting device according to claim 1, wherein said explosive is integrally attached to a long tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28021390A JP2574188B2 (en) | 1990-10-17 | 1990-10-17 | Blasting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28021390A JP2574188B2 (en) | 1990-10-17 | 1990-10-17 | Blasting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04155199A JPH04155199A (en) | 1992-05-28 |
| JP2574188B2 true JP2574188B2 (en) | 1997-01-22 |
Family
ID=17621890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28021390A Expired - Lifetime JP2574188B2 (en) | 1990-10-17 | 1990-10-17 | Blasting equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2574188B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108005652A (en) * | 2017-11-29 | 2018-05-08 | 中国矿业大学 | A kind of opencut high temperature blasting boreholes multilayer thermal insulation means for loading |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2787177B2 (en) * | 1992-04-30 | 1998-08-13 | 新日本製鐵株式会社 | Explosive loading bag in blasting equipment |
| KR101252138B1 (en) * | 2012-06-21 | 2013-04-08 | 우주개발 주식회사 | Water tube blasting method |
| JP6364197B2 (en) * | 2014-02-03 | 2018-07-25 | 株式会社アンカー | Explosive loading bag |
| CN106197178B (en) * | 2016-08-24 | 2018-02-13 | 三峡大学 | A kind of new deep hole water pressure blasting demolition set and blasting method |
| CN115404739B (en) * | 2022-09-30 | 2023-08-15 | 湖北工业大学 | Road or airport embedded pipe arrangement structure and temperature control and dismantling method |
-
1990
- 1990-10-17 JP JP28021390A patent/JP2574188B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108005652A (en) * | 2017-11-29 | 2018-05-08 | 中国矿业大学 | A kind of opencut high temperature blasting boreholes multilayer thermal insulation means for loading |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04155199A (en) | 1992-05-28 |
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