JPH04371508A - Hole opening machine for iron tapping hole - Google Patents
Hole opening machine for iron tapping holeInfo
- Publication number
- JPH04371508A JPH04371508A JP17034491A JP17034491A JPH04371508A JP H04371508 A JPH04371508 A JP H04371508A JP 17034491 A JP17034491 A JP 17034491A JP 17034491 A JP17034491 A JP 17034491A JP H04371508 A JPH04371508 A JP H04371508A
- Authority
- JP
- Japan
- Prior art keywords
- hole
- taphole
- machine
- drilling machine
- hydraulic
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract description 14
- 229910052742 iron Inorganic materials 0.000 title abstract description 7
- 238000010079 rubber tapping Methods 0.000 title abstract 5
- 238000005553 drilling Methods 0.000 claims abstract description 65
- 238000001816 cooling Methods 0.000 claims abstract description 7
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 4
- 239000003063 flame retardant Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052760 oxygen Inorganic materials 0.000 abstract description 10
- 239000001301 oxygen Substances 0.000 abstract description 10
- 239000002184 metal Substances 0.000 description 19
- 229910052751 metal Inorganic materials 0.000 description 19
- 239000003921 oil Substances 0.000 description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 239000002893 slag Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000008674 spewing Effects 0.000 description 1
Landscapes
- Blast Furnaces (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は溶鉱炉の出銑口を開孔す
るための出銑口開孔機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a taphole opening machine for opening a taphole in a blast furnace.
【０００２】0002
【従来の技術】出銑口開孔機は耐火物で作られた出銑口
（炉壁）を開孔する機械であり、削孔具を保持し、削孔
具に打撃と回転とフィード（送り）を与えて削孔し、ま
た削孔完了後削孔具に逆打撃と回転と逆フィード（送り
）を与えて削孔具を引き抜いて出銑口を開孔する。[Prior Art] A taphole drilling machine is a machine that opens a taphole (furnace wall) made of refractory material. After drilling is completed, the drilling tool is given reverse impact, rotation, and reverse feed (feed) to pull out the drilling tool and drill the tap hole.
【０００３】従来、すべての出銑口開孔機は駆動源を圧
縮空気としていた。その理由は、出銑口開孔機により出
銑口を開孔するとき、出銑口開孔機は溶鉱炉の出銑口か
ら噴出する高温の溶銑、溶滓を被り、また下面から溶銑
の輻射熱を受けるため、可燃性油を使用した油圧駆動な
ど適用できないと考えられていたためである。Conventionally, all taphole drilling machines have used compressed air as a driving source. The reason for this is that when the taphole is opened by the taphole opening machine, the taphole opening machine is covered with high-temperature hot metal and molten slag spewing out from the taphole of the blast furnace, and is also exposed to the radiant heat of the hot metal from the bottom surface. This was because it was thought that hydraulic drives using flammable oil could not be applied because of the
【０００４】図２は従来の出銑口開孔機の側面図である
。削孔具２は圧縮空気駆動式削孔機１１に保持され、打
撃と回転、または逆打撃と回転を与えられ、出銑口炉壁
１を開孔する。削孔機１１はガイドセル６の下に吊り下
げられ、ガイドセル６上に設置されたフィード用エアー
モータ４によってモータ４と削孔機１１を連結するチェ
ーン及びチェーンホイール５を介して前進、後退する。FIG. 2 is a side view of a conventional taphole drilling machine. The hole-drilling tool 2 is held by a compressed air-driven hole-drilling machine 11 and given impact and rotation, or reverse impact and rotation, to drill a hole in the tap furnace wall 1. The drilling machine 11 is suspended below the guide cell 6, and is moved forward and backward by the feed air motor 4 installed above the guide cell 6 via the chain and chain wheel 5 that connects the motor 4 and the drilling machine 11. do.
【０００５】出銑口開孔機に関しては、運転制御の容易
化を目的とする特開昭６３−６２８０７号公報に記載の
技術や、出銑口開孔機を退避位置から開孔位置まで移動
させるための駆動源として水圧ジャッキを用いる特開昭
５４−１５８３１０号公報に記載の技術等はあるが、こ
れらはすべて圧縮空気を削孔機の駆動源とする出銑口開
孔機を対象としたものであり、油圧を削孔機の駆動源と
する出銑口開孔機に関するものは開示されていない。Regarding the taphole opening machine, there is a technique described in Japanese Patent Application Laid-open No. 63-62807 aimed at facilitating operation control, and a technique that moves the taphole opening machine from the retracted position to the opening position. There is a technique described in Japanese Patent Application Laid-open No. 158310/1983 that uses a hydraulic jack as a drive source for drilling, but all of these techniques are aimed at taphole drilling machines that use compressed air as the drive source for the drilling machine. However, there is no disclosure of a taphole drilling machine that uses hydraulic pressure as a driving source for the drilling machine.
【０００６】[0006]
【発明が解決しようとする課題】従来のすべての出銑口
開孔機は７〜１０ｋｇ／ｃｍ２ の低圧の圧縮空気で駆
動されていたため、溶鉱炉の炉内圧が高圧化するにつれ
強固なマッドを充填することになってきたことにより増
加した削孔時要求されるパワーを満足させることができ
ないという問題があった。パワーを増加させるためには
機械を大型化するか、駆動源の圧力を高めるかすれば良
いわけであるが、機械の大型化に対しては周囲設備の寸
法的制約があり、駆動源圧力を高めることに対しては相
手が空気であることに起因する技術的困難性があって、
根本的解決ができなかった。[Problems to be Solved by the Invention] All conventional taphole opening machines were driven by low-pressure compressed air of 7 to 10 kg/cm2, so as the internal pressure of the blast furnace became higher, it became necessary to fill the blast furnace with strong mud. There was a problem in that it was not possible to satisfy the increased power required for drilling due to the increased demand for drilling. In order to increase the power, it is possible to increase the size of the machine or increase the pressure of the drive source, but increasing the size of the machine is limited by the dimensions of the surrounding equipment, so it is necessary to increase the pressure of the drive source. However, there are technical difficulties due to the fact that the opponent is air.
I couldn't find a fundamental solution.
【０００７】溶鉱炉の出銑口の開孔には厳しい時間的制
約があり、もし必要なときに開孔できないと大事故を発
生させる危険がある。すなわち、溶鉱炉は炉内で連続的
に溶銑を生成しているため、出銑口開孔が遅れた場合、
炉内溶銑貯留量が増加し、ついには送風羽口レベルに達
する。これは必ず羽口破損や炉内吹き抜けを発生させ、
溶鉱炉の操業を悪化させてしまう大事故であり、決して
許容されるものではない。大型の溶鉱炉ほど溶銑生成速
度が大きいため、出銑口開孔の時間低制約がより厳しい
ものとなる。ちなみに、大型溶鉱炉の溶銑生成速度は約
１０ｔ／分ほどである。厳しい時間的制約の中で、パワ
ー不足の出銑口開孔機を使って確実に出銑口を開孔する
ために、従来さまざまな開孔作業技術が適用されている
。[0007] There is a severe time limit for opening the taphole of a blast furnace, and if the hole cannot be opened when necessary, there is a risk of a major accident occurring. In other words, since a blast furnace continuously generates hot metal within the furnace, if there is a delay in opening the tap hole,
The amount of hot metal stored in the furnace increases and finally reaches the level of the blast tuyeres. This will definitely cause damage to the tuyere and blow-through in the furnace.
This was a major accident that worsened the operation of the blast furnace, and should never be tolerated. The larger the blast furnace is, the faster the hot metal production rate is, so the time constraints for opening the tap hole are more severe. Incidentally, the hot metal production rate of a large blast furnace is about 10 t/min. Various drilling techniques have been used to reliably drill tapholes using underpowered taphole drilling machines under severe time constraints.
【０００８】その一つが引き抜き開孔法である。マッド
ガンで出銑口開孔穴にマッドを圧入し、閉塞した後、マ
ッドが焼成されて硬くならないうちに出銑口開孔機を使
って金棒を炉内まで打ち込んでおき、出銑時、出銑口開
孔機を使って金棒を引き抜く開孔法である。引き抜き開
孔法によれば、パワー不足の出銑口開孔機を使って出銑
口を開孔することが相当容易にはなる。しかし、この場
合別の問題も発生する。事前に金棒を炉内まで打ち込ん
でいるため、金棒が炉内の溶銑により加熱されて、金棒
を引き抜く時途中で切断し、金棒先端部が出銑口穴の中
に残ってしまう場合である。この場合は出銑できないの
で、残った金棒を酸素で溶かして出銑する。つまり、引
き抜き開孔法でも金棒切れの場合、金棒を酸素で溶かす
時間が余計に掛るわけであり、厳しい時間的制約のなか
で確実に出銑口を開孔する完全な開孔作業技術とは言え
ない。One of them is the drawing hole method. After pressing the mud into the taphole hole with a mud gun and blocking it, use the taphole opening machine to drive a metal rod into the furnace before the mud is fired and becomes hard. This is a hole-opening method in which the metal rod is pulled out using a hole-opening machine. According to the drawing hole drilling method, it is considerably easier to drill a tap hole using an insufficiently powered tap hole drilling machine. However, another problem arises in this case. Because the metal rod is driven into the furnace in advance, the metal rod is heated by the hot metal in the furnace, and when the metal rod is pulled out, it is cut off halfway, leaving the tip of the metal rod in the tap hole. In this case, it is not possible to tap the iron, so the remaining gold rods are melted with oxygen and tapped. In other words, even with the drawing hole drilling method, if the metal rod breaks, it takes extra time to melt the metal rod with oxygen, so what is the perfect hole drilling technology that can reliably open a tap hole under severe time constraints? I can not say.
【０００９】特開昭５４−１５８３１０号公報に記載の
技術は、出銑口開孔機を退避位置から開孔位置まで移動
させるための駆動源として水圧ジャッキを用いるもので
あり、削孔パワーを増加させることを目的としたもので
ないことは明白である。[0009] The technology described in Japanese Patent Application Laid-Open No. 54-158310 uses a hydraulic jack as a drive source to move the taphole drilling machine from the retracted position to the hole opening position, and the drilling power is increased. It is clear that the purpose is not to increase
【００１０】他にもいろいろの技術が試みられているも
のの、酸素開孔を併用せずに確実に出銑口を開孔する域
に到達したものは無い。[0010] Although various other techniques have been attempted, none have reached the level of reliably opening a tap hole without using oxygen opening in combination.
【００１１】本発明の目的は、酸素開孔を併用せずに確
実に出銑口を開孔する充分なパワーを持った出銑口開孔
機を提供することにある。[0011] An object of the present invention is to provide a taphole drilling machine having sufficient power to reliably open a taphole without using oxygen drilling in combination.
【００１２】0012
【課題を解決するための手段】本発明の要旨は、削孔機
により保持した削孔具に打撃と回転を与え、更に削孔機
をガイドセルに沿って前後に送るフィードモータをガイ
ドセル後端に設置し、出銑口を開孔する出銑口開孔機に
おいて、削孔機の打撃、回転、逆打撃のいずれか又は全
部の駆動に油圧を使用し、駆動源油圧ユニットを出銑口
開孔機から離れた場所に設置し、油圧ユニットと出銑口
開孔機の間を油圧配管で連結し、作動油として難燃性油
を使用し、削孔機を防熱カバーで囲って該防熱カバー内
部を強制冷却する防熱装置を備えたことを特徴とする出
銑口開孔機である。[Means for Solving the Problems] The gist of the present invention is to apply a blow and rotation to a drilling tool held by a drilling machine, and further to drive a feed motor that moves the drilling machine back and forth along the guide cell after the guide cell. In a taphole drilling machine that is installed at the end of the taphole and drills the taphole, hydraulic pressure is used to drive any or all of the impact, rotation, and reverse impact of the drilling machine, and the drive source hydraulic unit is used to tap the taphole. It is installed in a location away from the taphole drilling machine, the hydraulic unit and the taphole drilling machine are connected by hydraulic piping, flame retardant oil is used as the hydraulic fluid, and the drilling machine is surrounded by a heat insulating cover. This taphole opening machine is characterized by being equipped with a heat insulation device that forcibly cools the inside of the heat insulation cover.
【００１３】[0013]
【作用】出銑口開孔機により出銑口を開孔するとき、出
銑口開孔機は溶鉱炉の出銑口から噴出する高温の溶銑、
溶滓を被り、また下面から溶銑の輻射熱を受けるが、こ
れらの過酷な使用条件に適応するために、駆動源油圧ユ
ニットを出銑口開孔機から離れた場所に設置し、油圧ユ
ニットと出銑口開孔機の間を油圧配管で連結し、作動油
として難燃性油を使用し、削孔機を防熱カバーで囲って
、該防熱カバー内部を強制冷却する。[Operation] When a taphole is opened by a taphole opening machine, the taphole opening machine is used to remove high-temperature hot metal that is spouted from the taphole of a blast furnace.
It is covered with molten slag and receives radiant heat from the hot metal from the bottom, but in order to adapt to these harsh operating conditions, the drive source hydraulic unit is installed in a location away from the taphole drilling machine, and the hydraulic unit and the taphole drill are separated. The holes are connected by hydraulic piping, flame-retardant oil is used as the hydraulic fluid, the holes are surrounded by a heat-insulating cover, and the inside of the heat-insulating cover is forcibly cooled.
【００１４】油圧駆動式出銑口開孔機の削孔機の構造は
、汎用の油圧削岩機をベースとして、強力化、大型化し
、更に、作動油として水グライコール等の難燃性油を使
用するための改善、例えば、パッキンやＯ−リング材質
として水グライコールに適応するＮＢＲゴムの採用、ア
キュムレーターのダイヤフラム材質として浸漬テストで
耐久性を確認した特殊ゴムの採用などを行う。The structure of the drilling machine of the hydraulically driven taphole drilling machine is based on a general-purpose hydraulic rock drilling machine, but it has been made stronger and larger, and it uses a flame-retardant oil such as water glycol as the working oil. For example, we have adopted NBR rubber that is compatible with water glycol as the packing and O-ring material, and we have adopted a special rubber whose durability has been confirmed in an immersion test as the accumulator diaphragm material.
【００１５】削孔機を防護する防熱カバーは鉄板製とし
、削孔機の全体を囲って、さらに防熱カバー内部を強制
冷却する。強制冷却の方法は、防熱カバー内に冷却用エ
ヤーを流すのが最も有効であるが、防熱カバー内面への
水冷ジャケット取り付けなどを併用する方法もある。The heat insulating cover that protects the hole drilling machine is made of a steel plate, surrounds the entire hole drilling machine, and further forcibly cools the inside of the heat insulating cover. The most effective forced cooling method is to flow cooling air into the heat insulating cover, but there are also methods that use a combination of methods such as attaching a water cooling jacket to the inner surface of the heat insulating cover.
【００１６】本発明の、油圧駆動式出銑口開孔機の削孔
パワーは、圧縮空気式出銑口開孔機のパワーを１として
、打撃力１．７、逆打撃力２．１、回転力３．０が実現
できる。表１に削孔パワーの比較データを示す。The drilling power of the hydraulically driven taphole drilling machine of the present invention is, assuming the power of the compressed air type taphole drilling machine as 1, the impact force is 1.7, the reverse impact force is 2.1, A rotational force of 3.0 can be achieved. Table 1 shows comparative data on drilling power.
【００１７】[0017]
【表１】[Table 1]
【００１８】削孔機の全体を囲う防熱カバーおよび防熱
カバー内強制冷却用エヤーの削孔機防護作用は効果的で
あり、カバー内への高温の溶銑、溶滓の侵入を防止し、
下面からの溶銑の輻射熱を遮断する。この結果、削孔機
自体の温度は室温並みに保たれ、削孔機のパッキンやＯ
−リングゴムの早期劣化もなく、水グライコール作動油
の早期劣化もなく、作動油に着火燃焼する危険性は完全
に解決される。[0018] The hole drilling machine protection effect of the heat insulating cover that surrounds the entire hole drilling machine and the forced cooling air inside the heat insulating cover is effective, and prevents high temperature hot metal and slag from entering into the cover.
Blocks the radiant heat of hot metal from the bottom. As a result, the temperature of the drilling machine itself is maintained at room temperature, and the packing and O
- There is no early deterioration of the ring rubber, there is no early deterioration of the water-glycol hydraulic oil, and the risk of ignition and combustion of the hydraulic oil is completely resolved.
【００１９】[0019]
【実施例】以下、本発明の一実施例を詳述する。[Example] An example of the present invention will be described in detail below.
【００２０】図１は本発明の油圧駆動式出銑口開孔機の
側面図であり、油圧ユニット〜油圧配管の概念フローも
示す。FIG. 1 is a side view of a hydraulically driven taphole opening machine of the present invention, and also shows a conceptual flow from a hydraulic unit to hydraulic piping.
【００２１】削孔具２は油圧駆動式削孔機３に保持され
、打撃と回転、または逆打撃と回転を与えられ、出銑口
炉壁１を開孔する。削孔機３はガイドセル６の下に吊り
下げられ、ガイドセル６上に設置されたフィード用エア
ーモータ４によってモータ４と削孔機３を連結するチェ
ーン及びチェーンホイール５を介して前進、後退する。The hole-drilling tool 2 is held by a hydraulically driven hole-drilling machine 3 and given impact and rotation, or reverse impact and rotation, to drill a hole in the taphole furnace wall 1. The drilling machine 3 is suspended below a guide cell 6, and is moved forward and backward by a feed air motor 4 installed above the guide cell 6 via a chain and chain wheel 5 that connect the motor 4 and the drilling machine 3. do.
【００２２】油圧ユニット７は、水グライコール作動油
を保有するオイルタンク、油圧ポンプ、リリーフ弁、切
り替え電磁弁等で構成され、油圧ユニット７は出銑口開
孔機から離れた場所に設置される。油圧配管８は、鋼管
とフレキシブルホース、ホースリールなどで構成され、
油圧ユニット７で昇圧された作動油を削孔機３に導き、
削孔機３を駆動した後、油圧ユニット７に排油する。The hydraulic unit 7 is composed of an oil tank containing water-glycol hydraulic oil, a hydraulic pump, a relief valve, a switching solenoid valve, etc., and the hydraulic unit 7 is installed at a location away from the taphole drilling machine. Ru. The hydraulic piping 8 is composed of a steel pipe, a flexible hose, a hose reel, etc.
The hydraulic oil pressurized by the hydraulic unit 7 is guided to the drilling machine 3,
After driving the hole drilling machine 3, the oil is drained into the hydraulic unit 7.
【００２３】防熱カバー９は、鉄板、アスベスト板、エ
ヤーブローによる強制冷却等で油圧駆動式削孔機３やフ
レキシブルホースを周囲の高熱から防護する。The heat insulating cover 9 protects the hydraulically driven drilling machine 3 and the flexible hose from surrounding high heat by using an iron plate, an asbestos plate, forced cooling by air blowing, or the like.
【００２４】削孔具２は長いロッドの先端に切削用刃物
であるビットを取り付けたものであるが、センターライ
ザー１０は、強力になった油圧駆動式削孔機３から与え
られる打撃力と回転力によりビットを保持するロッドが
座屈曲損することを防止するよう、ロッドの周囲を精度
よく支持する。The hole drilling tool 2 is a long rod with a bit, which is a cutting tool, attached to the tip. To prevent the rod holding the bit from buckling due to force, the rod is supported with precision.
【００２５】なお、本実施例ではフィード用モータとし
てエアーモータを使用するものを示したが、これを油圧
モータとすることもできる。Although the present embodiment uses an air motor as the feed motor, it is also possible to use a hydraulic motor.
【００２６】表２に開孔実施例を示すが、従来の圧縮空
気式出銑口開孔機では引き抜き開孔率９７％、酸素開孔
比率３０％であるのに対し、本発明は１００％の本番開
孔と酸素開孔比率８％という良い結果が得られた。今後
の調整により、１００％の本番開孔と酸素開孔比率０が
可能と考えられる。[0026] Table 2 shows examples of hole openings, and while the conventional compressed air type taphole opening machine has a drawing hole opening ratio of 97% and an oxygen opening ratio of 30%, the present invention has a hole opening ratio of 100%. A good result was obtained with a ratio of actual pore openings and oxygen pore opening ratio of 8%. With future adjustments, it is thought that 100% actual pore opening and oxygen pore opening ratio of 0 will be possible.
【００２７】[0027]
【表２】[Table 2]
【００２８】[0028]
【発明の効果】本発明により、酸素開孔を併用せずに確
実に出銑口を開孔する充分なパワーを持った出銑口開孔
機を提供することができる。According to the present invention, it is possible to provide a tap hole opening machine having sufficient power to reliably open a tap hole without using oxygen opening in combination.
【図１】本発明の油圧式出銑口開孔機の側面図である。FIG. 1 is a side view of a hydraulic taphole opening machine of the present invention.
【図２】従来の出銑口開孔機の側面図である。FIG. 2 is a side view of a conventional taphole opening machine.
１ 出銑口炉壁
２ 削孔具
３ 油圧駆動式削孔機
４ フィード用エアーモータ
５ チェーン及びチェーンホイール６ ガ
イドセル
７ 油圧ユニット
８ 油圧配管
９ 防熱カバー
１０ センターライザー
１１ 圧縮空気駆動式削孔機1 Taphole furnace wall 2 Drilling tool 3 Hydraulic driven drilling machine 4 Feed air motor 5 Chain and chain wheel 6 Guide cell 7 Hydraulic unit 8 Hydraulic piping 9 Heat shield cover 10 Center riser 11 Compressed air driven drilling machine
Claims (1)
回転を与え、更に削孔機をガイドセルに沿って前後に送
るフィードモータをガイドセル後端に設置し、出銑口を
開孔する出銑口開孔機において、削孔機の打撃、回転、
逆打撃のいずれか又は全部の駆動に油圧を使用し、駆動
源油圧ユニットを出銑口開孔機から離れた場所に設置し
、油圧ユニットと出銑口開孔機の間を油圧配管で連結し
、作動油として難燃性油を使用し、削孔機を防熱カバー
で囲って該防熱カバー内部を強制冷却する防熱装置を備
えたことを特徴とする出銑口開孔機。Claim 1: A feed motor is installed at the rear end of the guide cell to apply impact and rotation to the drill tool held by the hole drill, and also to send the hole drill back and forth along the guide cell to open the tap hole. In the taphole drilling machine that drills holes, the impact, rotation,
Hydraulic pressure is used to drive either or all of the reverse blows, the drive source hydraulic unit is installed in a location away from the taphole opening machine, and the hydraulic piping is connected between the hydraulic unit and the taphole opening machine. A taphole drilling machine, characterized in that it uses flame retardant oil as a working oil, surrounds the drilling machine with a heat insulating cover, and is equipped with a heat insulating device for forcibly cooling the inside of the heat insulating cover.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17034491A JPH04371508A (en) | 1991-06-17 | 1991-06-17 | Hole opening machine for iron tapping hole |
| KR1019920010447A KR950001904B1 (en) | 1991-06-17 | 1992-06-16 | Tap hole drilling machine |
| EP92110142A EP0519397B1 (en) | 1991-06-17 | 1992-06-16 | Tap hole drilling machine |
| ES92110142T ES2091979T3 (en) | 1991-06-17 | 1992-06-16 | MACHINE FOR DRILLING CAST HOLES. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17034491A JPH04371508A (en) | 1991-06-17 | 1991-06-17 | Hole opening machine for iron tapping hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04371508A true JPH04371508A (en) | 1992-12-24 |
Family
ID=15903191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17034491A Pending JPH04371508A (en) | 1991-06-17 | 1991-06-17 | Hole opening machine for iron tapping hole |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04371508A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1191110A1 (en) * | 1999-04-26 | 2002-03-27 | Nippon Steel Corporation | Method for automatically controlling hydraulic opener |
| CN114382425A (en) * | 2022-03-23 | 2022-04-22 | 中南大学 | Chain type hydraulic direct-pushing drilling test platform suitable for polluted soil layer |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52105503A (en) * | 1976-02-20 | 1977-09-05 | Anshien Ets Pooru Waasu Sa De | Improvement on blast furnace taphole borer |
-
1991
- 1991-06-17 JP JP17034491A patent/JPH04371508A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52105503A (en) * | 1976-02-20 | 1977-09-05 | Anshien Ets Pooru Waasu Sa De | Improvement on blast furnace taphole borer |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1191110A1 (en) * | 1999-04-26 | 2002-03-27 | Nippon Steel Corporation | Method for automatically controlling hydraulic opener |
| EP1191110A4 (en) * | 1999-04-26 | 2003-08-13 | Nippon Steel Corp | Method for automatically controlling hydraulic opener |
| US6685876B1 (en) * | 1999-04-26 | 2004-02-03 | Nippon Steel Corporation | Method for automatically controlling hydraulic opener |
| EP1645641A2 (en) * | 1999-04-26 | 2006-04-12 | Nippon Steel Corporation | Automatic control method for hydraulic taphole opener |
| EP1645641A3 (en) * | 1999-04-26 | 2007-03-21 | Nippon Steel Corporation | Automatic control method for hydraulic taphole opener |
| EP1645642A3 (en) * | 1999-04-26 | 2007-03-28 | Nippon Steel Corporation | Automatic control method for hydraulic taphole opener |
| CN114382425A (en) * | 2022-03-23 | 2022-04-22 | 中南大学 | Chain type hydraulic direct-pushing drilling test platform suitable for polluted soil layer |
| CN114382425B (en) * | 2022-03-23 | 2022-06-28 | 中南大学 | Chain type hydraulic direct-pushing drilling test platform suitable for polluted soil layer |
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| A02 | Decision of refusal |
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