JPH0717932B2 - Opening and closing device of tap hole of smelting reduction furnace - Google Patents
Opening and closing device of tap hole of smelting reduction furnaceInfo
- Publication number
- JPH0717932B2 JPH0717932B2 JP31831589A JP31831589A JPH0717932B2 JP H0717932 B2 JPH0717932 B2 JP H0717932B2 JP 31831589 A JP31831589 A JP 31831589A JP 31831589 A JP31831589 A JP 31831589A JP H0717932 B2 JPH0717932 B2 JP H0717932B2
- Authority
- JP
- Japan
- Prior art keywords
- tap hole
- furnace
- reduction furnace
- base
- smelting reduction
- 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
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- Furnace Charging Or Discharging (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ この発明は、鉄鉱石を溶融還元するための加圧式溶融還
元炉における出銑口の開口及び閉塞装置に関するもので
ある。TECHNICAL FIELD The present invention relates to an opening and closing device for a taphole in a pressure smelting reduction furnace for smelting and reducing iron ore.
「従来の技術」 鉄浴が収容された転炉型の溶融還元炉内に、鉄鉱石およ
び炭材を供給し、上方からランスを通して酸素を吹き込
むことにより鉄鉱石を溶融還元する、鉄浴式溶融還元炉
による鉄鉱石の溶融還元方法が知られている。"Prior art" Iron ore melting is performed by supplying iron ore and carbonaceous material into a converter-type smelting reduction furnace that contains an iron bath, and then smelting and reducing the iron ore by blowing oxygen through a lance from above. A smelting reduction method of iron ore by a reduction furnace is known.
第５図は、この方法に使用される転炉型の加圧式溶融還
元炉の概略垂直断面図である。第５図に示すように、溶
融還元炉は、転炉型の炉体１と、炉体１の炉口1aを通し
て炉内に実質的に垂直に挿入されるランス２と、炉体１
の底壁および側壁に設けられた攪拌用ガス吸込口３と、
炉口1aを覆うフード４に設けられた鉄鉱石供給用シュー
ト５および石炭等の炭材供給用シュート６とからなって
いる。FIG. 5 is a schematic vertical sectional view of a converter-type pressurized smelting reduction furnace used in this method. As shown in FIG. 5, the smelting reduction furnace includes a converter-type furnace body 1, a lance 2 that is inserted substantially vertically into the furnace through a furnace opening 1a of the furnace body 1, and a furnace body 1.
A gas inlet 3 for stirring provided on the bottom wall and side wall of
It consists of an iron ore supply chute 5 and a carbon material supply chute 6 such as coal provided in a hood 4 covering the furnace port 1a.
炉内に所要量の溶鉄を収容し、シュート５を通して鉄鉱
石を、そして、シュート６を通して石炭などの炭材およ
びフラックスを炉内に供給する。炉口1aから炉体１内に
垂直に挿入されたランス２を通して、炉内のスラグ８上
に酸素ガスを吹き込み、そして、攪拌用ガス吸込口３を
通して、炉内の鉄浴７中に窒素等の攪拌用ガスを吹込
む。A required amount of molten iron is housed in the furnace, iron ore is supplied through the chute 5, and carbonaceous materials such as coal and flux are supplied through the chute 6. Oxygen gas is blown onto the slag 8 in the furnace through the lance 2 vertically inserted into the furnace body 1a from the furnace port 1a, and then nitrogen or the like is introduced into the iron bath 7 in the furnace through the gas inlet port 3 for stirring. Blow in the stirring gas of.
その結果、溶鉄中の炭素および供給された炭材中の炭素
とランス２を通して吹き込まれた酸素ガスとが反応して
COガスが生成する。As a result, the carbon in the molten iron and the carbon in the supplied carbonaceous material react with the oxygen gas blown through the lance 2.
CO gas is generated.
上記により生成したCOガスは、ランス２を通して吹き込
まれた過剰の酸素ガスと反応してCO2ガスとなり、この
ときに発生したCO2ガスの顕熱により、溶鉄７中の鉄鉱
石は溶融しそして炭材中の炭素により還元されて溶銑と
なる。精錬時に発生した排ガスは、フード４に設けられ
た排出口９を通って排出され、図示しない予備還元炉の
予備還元用ガスとして使用される。The CO gas generated as described above reacts with the excess oxygen gas blown through the lance 2 to become CO 2 gas, and the sensible heat of the CO 2 gas generated at this time melts the iron ore in the molten iron 7 and The hot metal is reduced by the carbon in the carbonaceous material. Exhaust gas generated during refining is discharged through a discharge port 9 provided in the hood 4 and used as a preliminary reducing gas for a preliminary reducing furnace (not shown).
上述の溶融還元方法において重要なことは、還元炉内に
おいて発生するガスの酸化度即ち２次燃焼率を向上させ
ることである。このために、溶融還元炉内を加圧して炉
内圧力を高め、これによって２次燃焼率の向上を計って
いる。What is important in the above smelting reduction method is to improve the degree of oxidation of the gas generated in the reduction furnace, that is, the secondary combustion rate. For this reason, the inside of the smelting reduction furnace is pressurized to increase the pressure inside the furnace, and thereby the secondary combustion rate is improved.
［発明が解決しようとする課題］ 上述のような溶融還元炉における精錬の終了時には、従
来、第５図に示す炉口1aを覆うフード４を取外した後、
炉体1aを傾動し、炉口1aから炉内の溶銑を取鍋に排出し
ていた。[Problems to be Solved by the Invention] At the end of refining in the smelting reduction furnace as described above, after removing the hood 4 covering the furnace port 1a shown in FIG.
The furnace body 1a was tilted, and the hot metal in the furnace was discharged from the furnace opening 1a into a ladle.
このために、精錬は間欠的になり、連続精錬が不可能な
ため、精錬効率の低下が避けられない。更に、出銑時に
は炉内の加圧状態が開放される結果、次の精錬に当っ
て、改めて炉内を加圧しなければならず、このための操
作が複雑になり、炉内圧を一定に保つことが困難になる
等の問題があった。For this reason, refining becomes intermittent and continuous refining is impossible, so a decrease in refining efficiency cannot be avoided. Furthermore, as the pressure inside the furnace is released during tapping, it is necessary to pressurize the inside of the furnace again for the next refining, which complicates the operation and keeps the pressure inside the furnace constant. There was a problem that things became difficult.
従って、この発明の目的は、加圧式溶融還元炉による鉄
鉱石の溶融還元操業を連続的に行なうための、溶融還元
炉の出銑口の開口及び閉塞装置を提供することにある。Therefore, an object of the present invention is to provide an opening and closing device for a tap hole of a smelting reduction furnace for continuously performing a smelting reduction operation of iron ore by a pressure type smelting reduction furnace.
［課題を解決するための手段］ この発明の装置は、溶融還元炉の側壁下部に設けられた
出銑口に向けて移動可能な基台と、前記基台の下部に前
記出銑口に向けて水平に設けられた案内レールと、前記
案内レールに、水平移動可能に支持された、前記出銑口
を開口するための、その軸線を中心として回転可能な穿
孔用ロッドからなる開口機構と、前記基台の、前記溶融
還元炉側の端部に設けられた水平軸に、支持金具を介
し、前記出銑口に向けて旋回可能に設けられた、前記出
銑口を閉塞するためのマッドガンからなる閉塞機構と、
前記溶融還元炉の前記出銑口上部の側壁に設けられた反
力受け金具に係止可能な、前記基台の端部に設けられた
第１ハッカ、および、前記案内レールの端部に設けられ
た第２ハッカからなる反力受け機構とからなることに特
徴を有するものである。[Means for Solving the Problem] An apparatus of the present invention is a base that is movable toward a taphole provided at a lower portion of a side wall of a smelting reduction furnace, and a base that is provided at a lower portion of the base toward the taphole. And a guide rail horizontally provided, and the guide rail, which is supported so as to be horizontally movable, for opening the taphole, and an opening mechanism including a rod for perforation rotatable about its axis, A mud gun for closing the tap hole, which is provided on a horizontal shaft provided at the end of the smelting reduction furnace side of the base so as to be pivotable toward the tap hole through a supporting metal fitting. A blocking mechanism consisting of
A first hacker provided at an end portion of the base, which is engageable with a reaction force receiving metal fitting provided on a side wall of the taphole of the smelting reduction furnace, and provided at an end portion of the guide rail. And a reaction force receiving mechanism including the second hacker.
次に、この発明を、図面を参照しながら説明する。Next, the present invention will be described with reference to the drawings.
第１図は、この発明の一実施態様を示す概略正面図、第
２図は、第１図における主として開口機構部分を示す概
略側面図、第３図は、第１図における主として反力受け
機構部分を示す概略平面図、第４図は、第１図における
主としてマッドガン部分を示す拡大概略正面図である。FIG. 1 is a schematic front view showing an embodiment of the present invention, FIG. 2 is a schematic side view mainly showing an opening mechanism portion in FIG. 1, and FIG. 3 is a reaction force receiving mechanism mainly in FIG. FIG. 4 is a schematic plan view showing a portion, and FIG. 4 is an enlarged schematic front view mainly showing a mud gun portion in FIG.
第１図に示すように、溶融還元炉の炉体１の側壁1bの下
部には、側壁1bを水平に貫通する出銑口10が設けられて
いる。出銑口10は、精錬中においてはマッドにより閉塞
されており、出銑時にはこれを穿孔用ロッドにより開口
する。As shown in FIG. 1, a tap hole 10 that horizontally penetrates the side wall 1b is provided in the lower portion of the side wall 1b of the furnace body 1 of the smelting reduction furnace. The tap hole 10 is closed by a mud during refining and is opened by a drilling rod at tap time.
このような、出銑口10の開口機構および閉塞機構を備え
た基台11が、出銑口10に向けて移動可能に設けられてい
る。基台11の移動は、第１図及び第２図に示すように基
台11に取付けられた吊金具12を使用し、クレーン等によ
って行なってもよく、または、基台11を搭載した台車に
よって行なってもよい。A base 11 having such an opening mechanism and a closing mechanism for the taphole 10 is provided so as to be movable toward the taphole 10. The movement of the base 11 may be performed by a crane or the like using the hanging metal fittings 12 attached to the base 11 as shown in FIGS. 1 and 2, or by a trolley equipped with the base 11. You may do it.
基台11の下面には、その幅方向にレール13が設けられて
おり、レール13には、出銑口10を開口するための開口機
構14がこれに沿って移動可能に設けられている。開口機
構14は、車輪16によりレール13に沿って移動可能な第１
台車15と、第１台車15の下面に連結金具17を介して固定
された、基台11が出銑口10の前に位置したときに、出銑
口10に向けて水平に位置する案内レール18と、案内レー
ル18に沿って移動可能な第２台車19と、第２台車19にそ
の基端が取付けられた穿孔用ロッド20とからなってい
る。第２台車19にはモータ21が搭載されており、穿孔用
ロッド20の基端は、モータ21の回転軸に取付けられてい
る。従って、穿孔用ロッド20は、モータ21の駆動によ
り、その軸線を中心として回転する。A rail 13 is provided on the lower surface of the base 11 in the width direction thereof, and an opening mechanism 14 for opening the taphole 10 is provided on the rail 13 so as to be movable along the opening mechanism. The opening mechanism 14 is a first movable mechanism that can be moved along the rails 13 by the wheels 16.
A guide rail that is fixed to the lower surface of the trolley 15 and the first trolley 15 via a connecting metal fitting 17 and that is positioned horizontally toward the taphole 10 when the base 11 is located in front of the taphole 10. 18, a second carriage 19 movable along the guide rails 18, and a drilling rod 20 having a base end attached to the second carriage 19. A motor 21 is mounted on the second carriage 19, and the base end of the drilling rod 20 is attached to the rotating shaft of the motor 21. Therefore, the drilling rod 20 is rotated about its axis by the drive of the motor 21.
基台11の、炉体１側の端部には、水平軸22が取付けられ
ている。水平軸22には、出銑口10が閉塞するための閉塞
機構としての、油圧シリンダ35を有するマッドガン23
が、支持金具24を介し旋回可能に設けられている。基台
11の、炉体１側の端部上に設けられたブラケット25に
は、第１油圧シリンダ26が軸着されており、第１油圧シ
リンダ26のロッドの下端は、マッドガン23の支持金具24
に軸着されている。従って、第１油圧シリンダ26の駆動
により、マッドガン23は、水平軸22を軸として上下方向
に旋回し、下方に向けて旋回したときに、その先端を出
銑口10に位置させることができる。A horizontal shaft 22 is attached to the end of the base 11 on the furnace body 1 side. The horizontal shaft 22 has a mud gun 23 having a hydraulic cylinder 35 as a closing mechanism for closing the tap hole 10.
However, it is provided so as to be rotatable via a support fitting 24. Base
A first hydraulic cylinder 26 is pivotally mounted on a bracket 25 provided on the end portion of the furnace body 1 on the side of the furnace body 1. The lower end of the rod of the first hydraulic cylinder 26 has a support fitting 24 for the mud gun 23.
Is pivoted on. Therefore, by driving the first hydraulic cylinder 26, the mud gun 23 turns vertically about the horizontal shaft 22, and the tip of the mud gun 23 can be positioned at the taphole 10 when turning downward.
第１図および第３図に示すように、炉体１の出銑口10よ
り上部の側壁1bには、上下に水平なピン28,28′を有す
る反力受け金具27が設けられている。基台11の端部の水
平軸22には、上部ピン28に係止可能な爪29aを有する第
１ハッカ29の中央部が軸着されている。基台11の端部上
に設けられたブラケット25には、第２油圧シリンダ30が
軸着されており、第１ハッカ29の他端部には、第２油圧
シリンダ30のロッドの先端が軸着されている。従って、
第２油圧シリンダ30の駆動により、第１ハッカ29は水平
軸22を軸として回動し、第１ハッカ29の爪29aが、反力
受け金具27の上部ピン28に脱着する。As shown in FIGS. 1 and 3, on the side wall 1b above the tap hole 10 of the furnace body 1, there is provided a reaction force receiving metal fitting 27 having horizontal pins 28, 28 '. On the horizontal shaft 22 at the end of the base 11, a central portion of a first hacker 29 having a claw 29a that can be engaged with the upper pin 28 is pivotally mounted. A second hydraulic cylinder 30 is pivotally mounted on a bracket 25 provided on the end of the base 11, and the tip of the rod of the second hydraulic cylinder 30 is attached to the other end of the first hacker 29. It is worn. Therefore,
By driving the second hydraulic cylinder 30, the first hacker 29 rotates about the horizontal shaft 22, and the claw 29a of the first hacker 29 is attached / detached to / from the upper pin 28 of the reaction force receiving fitting 27.
案内レール18の、炉体１側の端部に設けられた水平軸31
には、一端に下部ピン28′に係止可能な爪32aを有する
第２ハッカ32が軸着されている。案内レール18の端部上
に設けられたブラケット33には、第３油圧シリンダ34が
軸着されており、第２ハッカ32の他端部には、第３油圧
シリンダ34のロッドの先端が軸着されている。従って、
第３油圧シリンダ34の駆動により、第２ハッカ32は水平
軸31を軸として回動し、第２ハッカ32の爪32aが、反力
受け金具27の下部ピン28′に脱着する。Horizontal shaft 31 provided at the end of the guide rail 18 on the furnace body 1 side
A second hacker 32, which has a claw 32a that can be engaged with the lower pin 28 'at one end, is axially attached to this. A third hydraulic cylinder 34 is pivotally mounted on a bracket 33 provided on the end of the guide rail 18, and the tip of the rod of the third hydraulic cylinder 34 is axially attached to the other end of the second hacker 32. It is worn. Therefore,
By driving the third hydraulic cylinder 34, the second hacker 32 rotates about the horizontal shaft 31, and the claw 32a of the second hacker 32 is attached / detached to / from the lower pin 28 'of the reaction force receiving fitting 27.
上述した反力受け金具27、第１ハッカ29および第２ハッ
カ32等により、反力受け機構が構成されている。The reaction force receiving mechanism is composed of the reaction force receiving fitting 27, the first hacker 29, the second hacker 32, and the like described above.
［作用］ 溶融還元炉における精錬が終了し出銑する際には、基台
11を、炉体１の出銑口10の全面に位置させる。そして、
第２油圧シリンダ30の作動により、第１ハッカ29の爪29
aを、炉体１の側壁1bに設けられた反力受け金具27の上
部ピン28に係止させ、且つ、第３油圧シリンダ34の作動
により、第２ハッカ32の爪32aを、反力受け金具27の下
部ピン28′に係止させる。[Operation] When refining in the smelting reduction furnace is completed and tapping is performed, the base
11 is placed on the entire surface of the tap hole 10 of the furnace body 1. And
The operation of the second hydraulic cylinder 30 causes the claws 29 of the first hacker 29.
a is locked to the upper pin 28 of the reaction force receiving metal fitting 27 provided on the side wall 1b of the furnace body 1, and the claw 32a of the second hacker 32 is received by the reaction force receiving by the operation of the third hydraulic cylinder 34. It is locked to the lower pin 28 'of the metal fitting 27.
次いで、第１台車15をレール13に沿って基台11の幅方向
に移動し、穿孔用ロッド20を、炉体１の出銑口10の延長
線上に正しく位置させる。そして、モータ21の駆動によ
り、穿孔用ロッド20を、その軸線を中心として回転させ
ながら、第２台車19を案内レール18に沿って出銑口10に
向け前進させる。Next, the first carriage 15 is moved along the rail 13 in the width direction of the base 11, and the drilling rod 20 is correctly positioned on the extension line of the tap hole 10 of the furnace body 1. Then, by driving the motor 21, the second bogie 19 is advanced toward the tap hole 10 along the guide rail 18 while rotating the drilling rod 20 about the axis thereof.
かくして、炉体１の出銑口10は開口し、炉体１を直立さ
せた状態で、炉内の溶銑は、出銑口10を通り、図示しな
い取鍋に排出される。Thus, the tap hole 10 of the furnace body 1 is opened, and in a state where the furnace body 1 is erected, the hot metal in the furnace passes through the tap hole 10 and is discharged to a ladle (not shown).
出銑が終了した後は、第２台車19を後退させ、そして、
第１台車15を基台11の幅方向に移動させて、第１台車1
5、案内レール18、第２台車19および穿孔用ロッド20
を、出銑口10の前方位置よりも横方向にずらす。After the tapping is completed, the second bogie 19 is retracted, and
By moving the first carriage 15 in the width direction of the base 11, the first carriage 1
5, guide rail 18, second carriage 19 and drilling rod 20
Is shifted laterally from the front position of the tap hole 10.
次いで、第１油圧シリンダ26を作動させてマッドガン23
を回動し、第４図に示すように、その先端を出銑口10に
位置させる。そして、マッドガン23の油圧シリンダ35を
作動させ、マッドガン23内のマッドを出銑口10内に押し
込んで、出銑口10を閉塞する。Then, the first hydraulic cylinder 26 is operated to operate the mud gun 23.
Is rotated so that its tip is positioned at the tap hole 10, as shown in FIG. Then, the hydraulic cylinder 35 of the mud gun 23 is operated to push the mud in the mud gun 23 into the tap hole 10 to close the tap hole 10.
上述した、穿孔用ロッド20の押込みによる出銑口10の開
孔時の反力、および、マッドガン23による出銑口10の閉
塞時の反力は、何れも、前述した反力受け金具27、第１
ハッカ29および第２ハッカ32等による反力受け機構によ
り、炉体１に受けられる。As described above, the reaction force at the time of opening the taphole 10 by pushing the rod 20 for perforation, and the reaction force at the time of closing the taphole 10 by the mud gun 23 are both the above-mentioned reaction force receiving fittings 27, First
It is received by the furnace body 1 by a reaction force receiving mechanism such as the hacker 29 and the second hacker 32.
出銑口10の閉塞が完了した後は、マッドガン23を元の位
置に復帰させ、第１ハッカ29および第２ハッカ32を、反
力受け金具27の上部ピン28および下部ピン28′から取外
す。そして、基台11を炉体１から離れた位置に移動さ
せ、その位置に待機させておく。After the closing of the tap hole 10 is completed, the mud gun 23 is returned to its original position, and the first hacker 29 and the second hacker 32 are removed from the upper pin 28 and the lower pin 28 'of the reaction force receiving fitting 27. Then, the base 11 is moved to a position distant from the furnace body 1 and made to stand by at that position.
上述したように、この発明によれば、精錬終了時におけ
る炉内からの溶銑の排出を、炉体を傾動させることなく
行なうことができ、従って、連続操業が可能になる。As described above, according to the present invention, the molten pig iron can be discharged from the furnace at the end of refining without tilting the furnace body, and therefore continuous operation is possible.
［発明の効果］ 以上述べたように、この発明によれば、加圧式溶融還元
炉により鉄鉱石の溶融還元を行なうに当り、出銑時に、
従来のように炉体を傾動させる必要がなく、炉体の下部
に設けられた出銑口を通して出銑することが可能にな
る。従って、連続精錬が可能になり、精錬効率が向上す
る。更に、出銑時に、炉内の加圧状態が開放されること
はないので、炉内圧をほぼ一定に保つことができる。こ
のように、この発明によれば、多くの工業上有用な効果
がもたらされる。[Effects of the Invention] As described above, according to the present invention, when performing the smelting reduction of iron ore by the pressurization type smelting reduction furnace, at the time of tapping,
Unlike the conventional case, it is not necessary to tilt the furnace body, and it is possible to tap the metal through the tap hole provided at the bottom of the furnace body. Therefore, continuous refining is possible and refining efficiency is improved. Further, since the pressurized state in the furnace is not released during tapping, the furnace pressure can be kept substantially constant. As described above, according to the present invention, many industrially useful effects are brought about.
第１図はこの発明の一実施態様を示す概略正面図、第２
図は第１図における主として開口機構部分を示す概略側
面図、第３図は第１図における主として反力受け機構部
分を示す概略平面図、第４図は第１図における主として
マッドガン部分を示す拡大概略正面図、第５図は加圧式
溶融還元炉の概略垂直断面図である。図面において、 １…炉体、２…ランス、３…ガス吹込口、４…フード、
5,6…シュート、７…鉄浴、８…スラグ、９…排出口、1
0…出銑口、11…基台、12…吊金具、13…レール、14…
開口機構、15…第１台車、16…車輪、17…連結金具、18
…案内レール、19…第２台車、20…穿孔用ロッド、21…
モータ、22…水平軸、23…マッドガン、24…支持金具、
25…ブラケット、26…第１油圧シリンダ、27…反力受け
金具、28,28′…ピン、29…第１ハッカ、30…第２油圧
シリンダ、31…水平軸、32…第２ハッカ、33…ブラケッ
ト、34…第３油圧シリンダ、35…マッドガン用シリン
ダ。FIG. 1 is a schematic front view showing an embodiment of the present invention, and FIG.
1 is a schematic side view mainly showing the opening mechanism part in FIG. 1, FIG. 3 is a schematic plan view mainly showing the reaction force receiving mechanism part in FIG. 1, and FIG. 4 is an enlarged view mainly showing the mud gun part in FIG. FIG. 5 is a schematic front view, and FIG. 5 is a schematic vertical sectional view of a pressure-type smelting reduction furnace. In the drawings, 1 ... Furnace body, 2 ... Lance, 3 ... Gas injection port, 4 ... Hood,
5,6 ... Chute, 7 ... Iron bath, 8 ... Slag, 9 ... Discharge port, 1
0 ... tap hole, 11 ... base, 12 ... hanging bracket, 13 ... rail, 14 ...
Opening mechanism, 15 ... 1st trolley, 16 ... Wheels, 17 ... Connecting metal fittings, 18
… Guide rails, 19… 2nd truck, 20… Drilling rods, 21…
Motor, 22 ... Horizontal axis, 23 ... Mad gun, 24 ... Support metal fittings,
25 ... Bracket, 26 ... First hydraulic cylinder, 27 ... Reaction force receiving metal fitting, 28, 28 '... Pin, 29 ... First hacker, 30 ... Second hydraulic cylinder, 31 ... Horizontal shaft, 32 ... Second hacker, 33 … Bracket, 34… 3rd hydraulic cylinder, 35… Cylinder for mud gun.
Claims (1)
に向けて移動可能な基台と、前記基台の下部に前記出銑
口に向けて水平に設けられた案内レールと、前記案内レ
ールに、水平移動可能に支持された、前記出銑口を開口
するための、その軸線を中心として回転可能な穿孔用ロ
ッドからなる開口機構と、前記基台の、前記溶融還元炉
側の端部に設けられた水平軸に、支持金具を介し、前記
出銑口に向けて旋回可能に設けられた、前記出銑口を閉
塞するためのマッドガンからなる閉塞機構と、前記溶融
還元炉の前記出銑口上部の側壁に設けられた反力受け金
具に係止可能な、前記基台の端部に設けられた第１ハッ
カ、および、前記案内レールの端部に設けられた第２ハ
ッカからなる反力受け機構とからなることを特徴とす
る、溶融還元炉の出銑口の開口および閉塞装置。1. A base movably provided toward a taphole provided at a lower portion of a side wall of a smelting reduction furnace, and a guide rail horizontally provided at a lower part of the base toward the taphole. An opening mechanism, which is supported by the guide rail so as to be horizontally movable, and which is capable of rotating the tap hole and is rotatable about its axis, and an opening mechanism, and the smelting reduction furnace side of the base. A horizontal axis provided at the end of the slab, which is pivotable toward the tap hole through a support fitting, and which includes a mud gun for closing the tap hole, and the melting reduction furnace. A first hacker provided at an end of the base and a second hack provided at an end of the guide rail, the first hacker being engageable with a reaction force receiving metal fitting provided on a side wall of the tap hole above. The output of the smelting reduction furnace is characterized by comprising a reaction force receiving mechanism consisting of mint. Mouth opening and closure device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31831589A JPH0717932B2 (en) | 1989-12-07 | 1989-12-07 | Opening and closing device of tap hole of smelting reduction furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31831589A JPH0717932B2 (en) | 1989-12-07 | 1989-12-07 | Opening and closing device of tap hole of smelting reduction furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03180423A JPH03180423A (en) | 1991-08-06 |
| JPH0717932B2 true JPH0717932B2 (en) | 1995-03-01 |
Family
ID=18097826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31831589A Expired - Lifetime JPH0717932B2 (en) | 1989-12-07 | 1989-12-07 | Opening and closing device of tap hole of smelting reduction furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0717932B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100989590B1 (en) * | 2003-07-19 | 2010-10-25 | 주식회사 포스코 | Mud gun stroke bar for easy molding of exit points |
| CN102445082B (en) * | 2010-10-14 | 2013-08-21 | 佛山市通润热能科技有限公司 | Connection structure of furnace door opening and closing system and aluminum rod |
-
1989
- 1989-12-07 JP JP31831589A patent/JPH0717932B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03180423A (en) | 1991-08-06 |
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