JPH02301505A - Method for controlling discharge of molten metal from metal melting furnace - Google Patents
Method for controlling discharge of molten metal from metal melting furnaceInfo
- Publication number
- JPH02301505A JPH02301505A JP12033889A JP12033889A JPH02301505A JP H02301505 A JPH02301505 A JP H02301505A JP 12033889 A JP12033889 A JP 12033889A JP 12033889 A JP12033889 A JP 12033889A JP H02301505 A JPH02301505 A JP H02301505A
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- molten metal
- induction heating
- heating device
- metal
- 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.)
- Granted
Links
- 239000002184 metal Substances 0.000 title claims abstract description 124
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 124
- 238000002844 melting Methods 0.000 title claims abstract description 22
- 230000008018 melting Effects 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 50
- 230000006698 induction Effects 0.000 claims abstract description 44
- 238000007599 discharging Methods 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 230000008023 solidification Effects 0.000 claims abstract description 4
- 238000007711 solidification Methods 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 20
- 229910052742 iron Inorganic materials 0.000 abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052802 copper Inorganic materials 0.000 abstract description 7
- 239000010949 copper Substances 0.000 abstract description 7
- 238000010079 rubber tapping Methods 0.000 abstract description 7
- 238000013021 overheating Methods 0.000 abstract 1
- 229910000805 Pig iron Inorganic materials 0.000 description 11
- 239000000498 cooling water Substances 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 239000011819 refractory material Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 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
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Landscapes
- Blast Furnaces (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Furnace Charging Or Discharging (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は高炉等の金属溶解炉からの溶融金属排出制御方
法に関するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for controlling molten metal discharge from a metal melting furnace such as a blast furnace.
〈従来の技術〉
金属溶解炉からの溶融金属の排出は炉底部に設けた排出
口から行われている０例えば高炉の出銑口は一定時間毎
に開花機による開孔とマッドガンによる閉塞とを繰り返
し、出銑樋を介して溶銑、溶滓を炉外へ導いている。<Prior art> Molten metal is discharged from a metal melting furnace through a discharge port provided at the bottom of the furnace.For example, the taphole of a blast furnace is opened by a flowering machine and blocked by a mud gun at regular intervals. Hot metal and slag are repeatedly guided out of the furnace via the tap culvert.
開孔機は、出銑口の開花を機械化によって行う装置であ
り、空気式によりドリルとハンマがガイドチャンネル上
を摺動しながら前後進できるようになっている。出銑口
の開花に際し、まず開花機のドリルによって炉内１ｍ程
度まで開孔し、その後、打込棒をハンマリングによって
打込み、引抜きを行って開孔する。ガイドチャンネルは
開花援引き上げ旋回退避させ、出銑作業に支障のないよ
うにしである。A drilling machine is a device that mechanizes the opening of a taphole, and is pneumatic so that the drill and hammer can move back and forth while sliding on a guide channel. When blooming the taphole, the hole is first drilled to a depth of about 1 m into the furnace using the drill of the flowering machine, and then a driving rod is driven in with a hammer and pulled out to open the hole. The guide channel is raised and swiveled to avoid hindrance to the tapping operation.
マッドガンは耐火物の混練マントを出銑口に圧入して閉
塞する装置で、旋回、傾動、保持、マッド押出しの４機
構を持っている。各出銑の終わりにマッドガンは旋回し
出銑口上に停止し、ＩＩＪｉ動動作で出銑口角度となり
、マッドガンノズルは出銑口に圧着されてからマッドを
押出し、閉塞に必要なマッドを炉内に押込んで閉塞を行
う。A mud gun is a device that presses a refractory kneading mantle into the tap hole to close it, and has four mechanisms: rotation, tilting, holding, and mud extrusion. At the end of each tap, the mud gun swivels and stops above the tap hole, and the IIJi movement moves to the tap hole angle, and the mud gun nozzle is crimped on the tap hole and then pushes out the mud, bringing the necessary mud into the furnace for plugging. Push it in to seal it.
前述の開孔機による出銑口の開孔作業およびマッドガン
による出銑口の閉塞作業は機械化されているとはいえ、
熟練した作業者による操作が必要であるため、高炉操業
における省力化の大きなネックになっている。Although the above-mentioned drilling work of the taphole with the hole-opening machine and the work of closing the taphole with the mud gun are mechanized,
Because it requires operation by skilled workers, it is a major bottleneck in efforts to save labor in blast furnace operations.
また開孔機による開孔とマッドガンによる閉塞とを繰り
返すと耐火物により構成されている出銑口が１員傷する
ため出銑口の補修作業を頻繁に行わなければならず、更
には、マッド材が次第に脆くなってくるため出銑口の口
径は徐々に拡大し、これに伴って出銑滓時間のコントロ
ールが困難となる。In addition, if the hole is repeatedly drilled with a hole drill and blocked with a mud gun, the tap hole, which is made of refractory material, will be damaged, so the tap hole must be repaired frequently. As the material gradually becomes brittle, the diameter of the tap hole gradually increases, making it difficult to control the tap slag time.
出銑口の開孔作業を省力化するものとして特公昭（ｉｆ
−２３２４１号公報に出銑口閉塞マントにレーザを照射
し、その照射部にＯｘガスを吹きつけつつ開孔する方法
が開示されている。この方法によれば機械弐開花機は不
要となるので利点は大きいが、未だに出銑口の開孔を可
能とする大容量のレーザ照射装置がなく実用化に問題が
ある。レーザ照射装置が実用化されたとしても出銑口の
閉塞作業は依然として７２ドガンによって行う必要があ
るため全自動化が困難である。Tokkosho (if
Japanese Patent No. 23241 discloses a method of opening a hole by irradiating a tap hole closing cloak with a laser and blowing Ox gas onto the irradiated portion. This method has a great advantage because it eliminates the need for a mechanical opener, but there is still a problem in its practical application as there is no large-capacity laser irradiation device that can open the tap hole. Even if a laser irradiation device is put into practical use, the task of closing the tap hole still needs to be performed using a 72-gun, making full automation difficult.
〈発明が解決しようとする課題〉
本発明は前述従来技術の問題点を解消し、高炉等の金属
溶解炉に設けられた排出口からの溶融金属の排出開始お
よび排出停止などの金属溶解炉からの溶融金属の排出お
よび停止に必要な一連の作業を全自動化することができ
る金ｒｆ％溶解炉からの溶融金属排出制御方法を提供す
ることを目的とするものである。<Problems to be Solved by the Invention> The present invention solves the above-mentioned problems of the prior art, and improves the performance of metal melting furnaces such as starting and stopping the discharge of molten metal from a discharge port provided in a metal melting furnace such as a blast furnace. The object of the present invention is to provide a method for controlling the discharge of molten metal from a gold RF% melting furnace, which can fully automate a series of operations necessary for discharging and stopping molten metal.
く課題を解決するための手段〉
上記目的を達成する本発明の金ｌ１ｙｉ溶解炉からの溶
融金属排出制御方法は、金属溶解炉の排出口に接続して
溶融金属排出管を設けると共に、前記溶融金属排出管を
取り囲んで炉内側および炉外側にそれぞれ独立に制御さ
れる誘導加熱装置を連設し、前記炉内側の誘導加熱装置
を加熱手段として使用することによって当該部における
溶融金属排出管内の熔融金属の凝固を防止し、かつ前記
炉外側の誘導加熱装置を加熱手段および冷却手段として
切替え使用することによって当該部における溶融金属排
出管内の凝固金属を溶融または溶融金属を凝固させ、前
記溶解炉からの溶融金属排出開始または排出停止を行う
ことを特徴とするものである。Means for Solving the Problems> A method for controlling molten metal discharge from a metal melting furnace according to the present invention that achieves the above object includes providing a molten metal discharge pipe connected to an outlet of the metal melting furnace, and By surrounding the metal discharge pipe and installing induction heating devices that are controlled independently on the inside and outside of the furnace, and using the induction heating device inside the furnace as a heating means, the melt in the molten metal discharge pipe in that part can be reduced. By preventing the metal from solidifying and switching between using the induction heating device outside the furnace as a heating means and a cooling means, the solidified metal in the molten metal discharge pipe in the relevant section is melted or the molten metal is solidified, and the molten metal is removed from the melting furnace. This is characterized by starting or stopping the discharge of molten metal.
また本発明では、加熱手段および冷却手段として切替え
使用する炉外側の誘導加熱装置を複数に区分し、溶融金
属の排出に先立ち前記各区分を炉内側から炉外側に順次
通電するようにすることもできる。Further, in the present invention, the induction heating device outside the furnace, which is used selectively as a heating means and a cooling means, may be divided into a plurality of sections, and each section may be sequentially energized from the inside of the furnace to the outside of the furnace, prior to discharging the molten metal. can.
〈作 用〉
金属溶解炉の操業中においては、炉内側の誘導加熱装置
は継続して通電状態が保持され、炉内例の溶融金属排出
管内の金属が凝固しないよう誘導加熱により溶融させで
ある。このため、炉内側の溶融金Ｂ排出管内の溶融金属
は排出口を介して炉内の熔融金属と溶融状態で連通して
いる。<Function> During the operation of a metal melting furnace, the induction heating device inside the furnace is kept energized, and the metal inside the molten metal discharge pipe inside the furnace is melted by induction heating so as not to solidify. . Therefore, the molten metal in the molten metal B discharge pipe inside the furnace communicates in a molten state with the molten metal inside the furnace via the discharge port.
一方、金属溶解炉から溶融金属を排出するとき以外には
、炉外側の誘導加熱装置は通電しないで冷却手段のみを
使用し、炉外側の溶融金属排出管内に凝固した金属を存
在させて閉塞することによって金属溶解炉内の溶融金属
の排出を停止する。On the other hand, except when discharging molten metal from the metal melting furnace, the induction heating device outside the furnace is not energized and only the cooling means is used, and the molten metal discharge pipe outside the furnace is blocked by solidified metal. This stops the discharge of molten metal in the metal melting furnace.
金属溶解炉から溶融金属を排出する際には、炉外側の誘
導加熱装置に通電して炉外側の凝固金属を溶融させると
、炉内側の溶融金属排出管内には予め溶融金属が存在す
るので炉内に貯溜されている溶融金属は排出口および溶
融金属排出管を介して炉外に排出される。When discharging molten metal from a metal melting furnace, the induction heating device outside the furnace is energized to melt the solidified metal outside the furnace. The molten metal stored inside is discharged to the outside of the furnace through the discharge port and the molten metal discharge pipe.
金属溶解炉から溶融金属の排出作業が終わった時点で、
炉外側の誘導加熱装置の通電を停止して冷却手段のみを
使用し、炉外側の溶融金属排出管内の溶融金属を再び凝
固させて閉塞し、炉内からの熔融金属の排出を停止する
。Once the molten metal has been discharged from the metal melting furnace,
The energization of the induction heating device outside the furnace is stopped and only the cooling means is used to re-solidify and block the molten metal in the molten metal discharge pipe outside the furnace, thereby stopping the discharge of molten metal from the inside of the furnace.
以上のように、炉外側の誘導加熱装置の加熱手段および
冷却手段を切替え使用し、溶融金属排出管内に存在する
金属の溶融および凝固を繰り返すことによって金Ｒ溶解
炉からの溶融金属の排出および停止作業を自動的に行う
ことができる。As described above, the heating means and cooling means of the induction heating device outside the furnace are switched and used to repeatedly melt and solidify the metal present in the molten metal discharge pipe, thereby discharging and stopping the molten metal from the Gold R melting furnace. Work can be done automatically.
〈実施例〉
以下本発明を高炉の出銑口に適用した場合の実施例につ
いて説明する。<Example> Hereinafter, an example in which the present invention is applied to a tap hole of a blast furnace will be described.
第１図は高炉１の炉下部に設けた出銑口２に接続した溶
銑排出管３から高炉ｌ内の溶銑４を溶銑樋５に排出して
いる状況を示している。溶銑υ「山背３には、その外周
を取囲んで炉内側の誘導加熱装置６ａおよび炉外側の誘
導加熱装置６ｂが連設されており、それぞれは独立に制
御するようになっている。FIG. 1 shows a situation in which hot metal 4 in a blast furnace 1 is discharged into a hot metal trough 5 from a hot metal discharge pipe 3 connected to a tap hole 2 provided at the lower part of the blast furnace 1. An induction heating device 6a on the inside of the furnace and an induction heating device 6b on the outside of the furnace are connected to the molten pig iron hillside 3 surrounding its outer periphery, and each is controlled independently.
溶銑排出管３は第１図のＡ部詳細図に示すように非磁性
管３ａの内部に耐火物３ｂをライニングして中空にした
構造である＃溶銑排出管３を取り囲む誘導加熱装置６ａ
、６ｂはスパイラル状の銅パイプからなる電磁コイル７
と絶縁体８からなっている。誘導加熱装置６ａおよび６
ｂの電磁コイル７の中には給水側銅バイブ７ａ、７ｃお
よび排出側銅パイプ７ｂ、７ｄがそれぞれ接続されてい
て冷却水を給排水できるようにしである。また銅パイプ
７ａと７ｂおよび７ｃと７ｄ間にはそれぞれ誘導電流発
生装置９ａ、９ｂが接続されており、各？ｉｔ ｉｆｆ
コイル７に通電するようになっている。The hot metal discharge pipe 3 has a structure in which a non-magnetic pipe 3a is lined with a refractory material 3b to make it hollow, as shown in the detailed view of part A in FIG. 1. #Induction heating device 6a surrounding the hot metal discharge pipe 3
, 6b is an electromagnetic coil 7 made of a spiral copper pipe.
and an insulator 8. Induction heating devices 6a and 6
In the electromagnetic coil 7 of b, water supply side copper vibes 7a, 7c and discharge side copper pipes 7b, 7d are connected, respectively, so that cooling water can be supplied and drained. Further, induced current generators 9a and 9b are connected between the copper pipes 7a and 7b and between 7c and 7d, respectively. it if
The coil 7 is energized.
高炉ｌの操業中において、炉内側の誘導加熱装置６ａに
誘導電流発生装置１９ａから継続的に通電すると共に銅
パイプ？ａ、７ｂを介して冷却水を給排水しながら炉内
側の溶銑排出管３内の溶銑が凝固しないように誘導加熱
して常に溶融状態にしである。このため、炉内側の溶銑
ｒＪＦ ｍ管３内の溶銑は出銑口２を介して炉内の溶銑
４と溶融状態で連通している。During operation of the blast furnace 1, electricity is continuously supplied to the induction heating device 6a inside the furnace from the induced current generator 19a, and the copper pipe 1 is continuously energized. While supplying and discharging cooling water through tubes a and 7b, the hot metal in the hot metal discharge pipe 3 inside the furnace is heated by induction so that it is always in a molten state so as not to solidify. Therefore, the hot metal in the hot metal rJF m pipe 3 inside the furnace communicates with the hot metal 4 inside the furnace through the tap hole 2 in a molten state.
一方、高炉１の出銑口２から溶銑４を出銑するときの他
は、第２図に示すように炉外側の誘導加熱装置６ｂには
通電しないで、給排水用銅パイプ７ｃ、７ｄの冷却水の
みを給排水することによって炉外側の溶銑排水管３内に
凝固銑鉄４ａを存在させて閉塞させておく。On the other hand, except when hot metal 4 is tapped from the tap hole 2 of the blast furnace 1, the induction heating device 6b outside the furnace is not energized as shown in FIG. By supplying and draining only water, the solidified pig iron 4a is allowed to exist in the hot metal drain pipe 3 outside the furnace and is blocked.
そして、高炉ｌの出銑口２から溶銑４を出銑する際に、
炉外側の誘導加熱装ｆｉ６ｂに冷却水を給排水を継続し
た状態で誘導電流発生装置９ｂから通電を開始して電磁
コイル７により炉外側の溶銑排出管３内の凝固銑鉄４ａ
を誘導加熱して溶融させる。凝固銑鉄４ａが溶融したら
第１図に示すように炉内側の溶銑排出管３内には溶銑が
存在するので高炉ｌ内の溶銑４は出銑口２および溶銑排
出管３を介して溶銑樋５に排出される。このとき溶銑排
出管３からの溶銑排出量の制御は誘導加熱装置ｔ６ａ、
６ｂによる溶銑の温度を制御するごとによって行う。す
なわち誘導加熱を強化して溶銑排出管３内を流れる溶銑
の温度を高くすると溶銑排出量が大きくなり、誘導加熱
を弱めて溶銑の温度を低くすると溶銑排出量を小さくす
ることができ高炉１からの出銑が終わった時点で炉外側
の誘導加熱装置６ｂへの通電を停止し、給排水用の銅パ
イプ７ｃ、７ｄによる冷却水の給排水のみを継続するこ
とによって炉外側の溶銑排出管３内の溶銑を再び凝固さ
せ、第２図に示すように凝固銑鉄４ａにより溶銑排出管
３内の炉外側を閉塞して高炉ｌからの出銑を停止する。Then, when tapping the hot metal 4 from the tap hole 2 of the blast furnace 1,
While supplying and draining cooling water to the induction heating device fi6b outside the furnace, electricity is started from the induction current generator 9b, and the electromagnetic coil 7 is used to solidify the pig iron 4a in the hot metal discharge pipe 3 outside the furnace.
is melted by induction heating. When the solidified pig iron 4a is melted, as shown in FIG. 1, there is hot metal in the hot metal discharge pipe 3 inside the furnace, so the hot metal 4 in the blast furnace l is transferred to the hot metal trough 5 through the tap hole 2 and the hot metal discharge pipe 3. is discharged. At this time, the amount of hot metal discharged from the hot metal discharge pipe 3 is controlled by the induction heating device t6a,
This is done by controlling the temperature of the hot metal using 6b. In other words, increasing induction heating to increase the temperature of the hot metal flowing through the hot metal discharge pipe 3 will increase the amount of hot metal discharged, and weakening induction heating to lower the temperature of the hot metal will reduce the amount of hot metal discharged from the blast furnace 1. When the tapping of iron is completed, the power supply to the induction heating device 6b outside the furnace is stopped, and only the supply and drainage of cooling water is continued through the copper pipes 7c and 7d for water supply and drainage. The hot metal is solidified again, and as shown in FIG. 2, the outside of the furnace inside the hot metal discharge pipe 3 is closed with the solidified pig iron 4a, and the tapping from the blast furnace 1 is stopped.
第３図は炉外側の誘導加熱装置６ｂをＢ１およびＢ！に
２区分した構造にするものを示しており、炉外側の溶銑
排出管３内を閉塞する場合には誘導加熱装置６ｂの２区
分Ｂ１およびｆ１２を冷却水のみによる冷却に切替える
ことによって溶銑を迅速に冷却して閉塞時間の短縮を図
る。Figure 3 shows the induction heating device 6b outside the furnace B1 and B! The figure shows a structure with two sections, and when the inside of the hot metal discharge pipe 3 outside the furnace is blocked, the two sections B1 and F12 of the induction heating device 6b are switched to cooling only with cooling water to quickly remove the hot metal. to reduce the blockage time.
また出銑に先立って、炉外側の誘導加熱装置６ｂの２区
分のうち炉内側の８１区分に通電してこの部分の溶銑排
出管３内の凝固銑鉄を誘導加熱して出銑の準備を行って
おく、引続き炉外側のＢｔ区分に通電してこの部分の凝
固銑鉄を誘導加熱して溶融する。このように２段階の誘
導加熱により炉外側の溶銑排出管３内の凝固銑鉄の溶融
を迅速に行って予定時間に出銑を行うようにする。In addition, prior to tapping, electricity is applied to the 81 section on the inside of the furnace among the two sections of the induction heating device 6b on the outside of the furnace, and the solidified pig iron in the hot metal discharge pipe 3 in this section is heated by induction to prepare for tapping. Then, electricity is applied to the Bt section outside the furnace to induce induction heating and melt the solidified pig iron in this section. In this way, the two-stage induction heating rapidly melts the solidified pig iron in the hot metal discharge pipe 3 outside the furnace, so that the pig iron can be tapped at the scheduled time.
なお、炉外側の誘導加熱装置６ｂは３区分以上に更に多
区分することも可能である。Note that the induction heating device 6b outside the furnace can be further divided into three or more sections.
溶銑排出管３内の溶銑が凝固を完了するまでに炉外に流
出すると凝固銑鉄４ａの残留が少なくなり閉塞が不十分
になる危険性があるので、溶銑排出管３を炉内側から炉
外側に上向きに１頃斜させて溶銑排出管３内に溶銑が残
留するようにするのが好ましい。If the hot metal in the hot metal discharge pipe 3 flows out of the furnace before solidification is completed, there is a risk that less solidified pig iron 4a will remain and the blockage will be insufficient, so the hot metal discharge pipe 3 is moved from the inside of the furnace to the outside of the furnace. It is preferable that the hot metal be tilted upwards so that the hot metal remains in the hot metal discharge pipe 3.
溶銑排出管３内の溶銑が流出するのを確実に防止するた
め、第４図に示すように溶銑排出管３の炉外側端部に播
動式栓１０を配設し、揺動式栓１０によって溶銑排出管
３の先端開口を塞いで溶銑を残留させ冷却により凝固銑
鉄を形成させて閉塞するようにすることができる。In order to reliably prevent the hot metal in the hot metal discharge pipe 3 from flowing out, a seeding type plug 10 is disposed at the outer end of the furnace of the hot metal discharge pipe 3, as shown in FIG. By this, the opening at the tip of the hot metal discharge pipe 3 can be closed, the hot metal may remain, and solidified pig iron can be formed by cooling, thereby closing the pipe.
また第５図および第６図に示すように鉄芯１１ａとコイ
ルｌｌｂからなる静止磁場発生袋ｆｆ１ｌｌを炉外側の
誘導加熱装置６ｂの外周に鉄芯１１ａのＳ極とＮ極を対
向させて設置し、形成される静止磁場に直交する形で流
れる溶銑流を減速あるいは停止させて冷却することによ
り閉塞させるようにすることもできる。Furthermore, as shown in FIGS. 5 and 6, a static magnetic field generating bag ff1ll consisting of an iron core 11a and a coil llb is installed on the outer periphery of the induction heating device 6b outside the furnace with the S and N poles of the iron core 11a facing each other. However, the blockage can also be achieved by slowing down or stopping the flow of hot metal flowing perpendicularly to the static magnetic field that is formed and cooling it.
〈発明の効果〉
以上説明したように本発明の金属溶解炉からの溶融金属
排出制御方法によれば下記の効果を奏する。<Effects of the Invention> As explained above, the method for controlling molten metal discharge from a metal melting furnace of the present invention provides the following effects.
（１）炉外側の溶融金属排出管内における溶融金属の凝
固と？８融を繰り返すだけで自動的に溶融金属の排出お
よび停止を制御できる。(1) Solidification of molten metal in the molten metal discharge pipe outside the furnace? By simply repeating 8 melting steps, the discharge and stop of molten metal can be automatically controlled.
（２）誘導加熱により温度が制御されるので溶融金属排
出管の耐火物寿命が延長される。(2) Since the temperature is controlled by induction heating, the life of the refractory of the molten metal discharge pipe is extended.
（３）出銑樋やマッド材が不要となるので耐火材の大幅
なコストダウンが図れる。(3) Since tap troughs and mud materials are not required, the cost of refractory materials can be significantly reduced.
（４） ｔ８！４！金属排出管を長くすることができ
るので長距離輸送が可能となり高炉等の鋳床における関
連設備を合理化することが可能となる。(4) t8!4! Since the metal discharge pipe can be made longer, it becomes possible to transport the metal over long distances, and it becomes possible to rationalize related equipment in a casthouse such as a blast furnace.
第１図および第２図はそれぞれ本発明の実施例に係る溶
銑排出管からの溶銑排出状況および溶銑排出管の閉塞状
況を概略断面で示す説明図、第３図は炉外側誘導加熱装
置を２区分した実施例を示す概略断面図、第４図は）工
動式栓を用いる本発明の他の実施例に係る概略断面図、
第５図は静止磁場発生装置を用いる本発明の更に他の実
施例に係る概略断面図、第６図は第４図のＡ−Ａ矢視を
示す正面図である。
１・・・高 炉、 ２・・・出銑口、３・・
・溶銑排出管、 ４・・・溶 銑、５・・・溶銑
樋、 ６・・・誘導加熱装置、７・・・１
磁コイル、 ８・・・絶縁体、９・・・誘導電
流発生装置ζ １０・・・揺動式栓、１１・・・静止磁
場発生装置。
特許出願人 川崎製鉄株式会社
第１図
第２図
ｂ
第４図
第５図FIG. 1 and FIG. 2 are explanatory diagrams showing schematic cross-sections of the hot metal discharge status from the hot metal discharge pipe and the blockage status of the hot metal discharge pipe according to the embodiment of the present invention, respectively, and FIG. FIG. 4 is a schematic cross-sectional view showing a divided embodiment; FIG. 4 is a schematic cross-sectional view of another embodiment of the present invention using a mechanical plug;
FIG. 5 is a schematic sectional view of still another embodiment of the present invention using a static magnetic field generator, and FIG. 6 is a front view taken along the line A--A in FIG. 4. 1... blast furnace, 2... taphole, 3...
・Hot metal discharge pipe, 4...Hot metal, 5...Hot metal gutter, 6...Induction heating device, 7...1
Magnetic coil, 8... Insulator, 9... Induced current generator ζ 10... Oscillating plug, 11... Stationary magnetic field generator. Patent applicant: Kawasaki Steel Corporation Figure 1 Figure 2 b Figure 4 Figure 5
Claims (1)
けると共に、前記溶融金属排出管を取り囲んで炉内側お
よび炉外側にそれぞれ独立に制御される誘導加熱装置を
連設し、前記炉内側の誘導加熱装置を加熱手段として使
用することによって当該部における溶融金属排出管内の
溶融金属の凝固を防止し、かつ前記炉外側の誘導加熱装
置を加熱手段および冷却手段として切替え使用すること
によって当該部における溶融金属排出管内の凝固金属を
溶融または溶融金属を凝固させ、前記溶解炉からの溶融
金属排出開始または排出停止を行うことを特徴とする溶
解炉からの溶融金属排出制御方法。 ２、加熱手段および冷却手段として切替え使用する炉外
側の誘導加熱装置を複数に区分し、溶融金属の排出に先
立ち前記各区分を炉内側から炉外側に順次通電すること
を特徴とする請求項１記載の溶解炉からの溶融金属排出
制御方法。[Claims] 1. A molten metal discharge pipe is provided connected to the discharge port of the metal melting furnace, and induction heating devices that surround the molten metal discharge pipe and are independently controlled inside and outside the furnace are provided. The induction heating device inside the furnace is used as a heating means to prevent solidification of molten metal in the molten metal discharge pipe in that part, and the induction heating device outside the furnace is used as a heating means and a cooling means. Molten metal discharge from a melting furnace, characterized in that by switching and using, the solidified metal in the molten metal discharge pipe in the relevant part is melted or the molten metal is solidified, and the discharge of molten metal from the melting furnace is started or stopped. Control method. 2. Claim 1, characterized in that the induction heating device outside the furnace, which is used selectively as a heating means and a cooling means, is divided into a plurality of sections, and each section is sequentially energized from the inside of the furnace to the outside of the furnace before discharging the molten metal. A method for controlling molten metal discharge from a melting furnace as described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12033889A JP2820430B2 (en) | 1989-05-16 | 1989-05-16 | Method of controlling molten metal discharge from metal melting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12033889A JP2820430B2 (en) | 1989-05-16 | 1989-05-16 | Method of controlling molten metal discharge from metal melting furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02301505A true JPH02301505A (en) | 1990-12-13 |
| JP2820430B2 JP2820430B2 (en) | 1998-11-05 |
Family
ID=14783782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12033889A Expired - Lifetime JP2820430B2 (en) | 1989-05-16 | 1989-05-16 | Method of controlling molten metal discharge from metal melting furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2820430B2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0691192A1 (en) * | 1994-07-08 | 1996-01-10 | Rhone-Poulenc Chimie | Process and apparatus for manufacturing polymers |
| EP0753392A1 (en) * | 1995-07-13 | 1997-01-15 | RIETER AUTOMATIK GmbH | Device to shut off a melt stream, especially of plastic |
| KR20010045634A (en) * | 1999-11-05 | 2001-06-05 | 이구택 | The Main Iron Through including the Electromagnet |
| JP2002147964A (en) * | 2000-11-08 | 2002-05-22 | Shinko Electric Co Ltd | Induction heating melting furnace and bottom tap mechanism |
| WO2004065871A1 (en) * | 2003-01-17 | 2004-08-05 | Outokumpu Oyj | Arrangemnt and method for opening and closing the taphole of a smelting reactor |
| JP2011530010A (en) * | 2008-08-07 | 2011-12-15 | ティーエムティー タッピング−メジャリング−テクノロジー ゲゼルシャフトミット ベシュレンクテル ハフツング | Method and melt channel for blocking and restoring the melt flow of iron and metal melts in the smelting furnace outlet channel and the smelting furnace waste channel |
| JP2011529794A (en) * | 2008-08-07 | 2011-12-15 | ティーエムティー タッピング−メジャリング−テクノロジー ゲゼルシャフトミット ベシュレンクテル ハフツング | Method and apparatus for adjusting the flow rate of non-ferromagnetic conductive liquid and melt and for slowing non-ferromagnetic conductive liquid and melt |
| JP2013511690A (en) * | 2009-11-18 | 2013-04-04 | エクストラータ テクノロジー プロプライアタリー リミテッド | How to remove slag from a furnace |
| CN103215403A (en) * | 2012-04-27 | 2013-07-24 | 四川绿冶科技有限责任公司 | Sealed smelting system and application thereof in high-titanium slag production |
| CN103375994A (en) * | 2012-04-27 | 2013-10-30 | 四川绿冶科技有限责任公司 | High temperature melt discharge pipe and smelting furnace with same |
Families Citing this family (1)
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| CN102735066B (en) * | 2012-06-14 | 2013-12-18 | 芜湖楚江合金铜材有限公司 | Underflow type passage mechanism and method for solution circulation control by using mechanism |
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1989
- 1989-05-16 JP JP12033889A patent/JP2820430B2/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0691192A1 (en) * | 1994-07-08 | 1996-01-10 | Rhone-Poulenc Chimie | Process and apparatus for manufacturing polymers |
| FR2722133A1 (en) * | 1994-07-08 | 1996-01-12 | Rhone Poulenc Chimie | PROCESS AND DEVICE FOR MANUFACTURING POLYMERS |
| EP0753392A1 (en) * | 1995-07-13 | 1997-01-15 | RIETER AUTOMATIK GmbH | Device to shut off a melt stream, especially of plastic |
| KR20010045634A (en) * | 1999-11-05 | 2001-06-05 | 이구택 | The Main Iron Through including the Electromagnet |
| JP2002147964A (en) * | 2000-11-08 | 2002-05-22 | Shinko Electric Co Ltd | Induction heating melting furnace and bottom tap mechanism |
| WO2004065871A1 (en) * | 2003-01-17 | 2004-08-05 | Outokumpu Oyj | Arrangemnt and method for opening and closing the taphole of a smelting reactor |
| JP2011530010A (en) * | 2008-08-07 | 2011-12-15 | ティーエムティー タッピング−メジャリング−テクノロジー ゲゼルシャフトミット ベシュレンクテル ハフツング | Method and melt channel for blocking and restoring the melt flow of iron and metal melts in the smelting furnace outlet channel and the smelting furnace waste channel |
| JP2011529794A (en) * | 2008-08-07 | 2011-12-15 | ティーエムティー タッピング−メジャリング−テクノロジー ゲゼルシャフトミット ベシュレンクテル ハフツング | Method and apparatus for adjusting the flow rate of non-ferromagnetic conductive liquid and melt and for slowing non-ferromagnetic conductive liquid and melt |
| JP2013511690A (en) * | 2009-11-18 | 2013-04-04 | エクストラータ テクノロジー プロプライアタリー リミテッド | How to remove slag from a furnace |
| CN103215403A (en) * | 2012-04-27 | 2013-07-24 | 四川绿冶科技有限责任公司 | Sealed smelting system and application thereof in high-titanium slag production |
| CN103375994A (en) * | 2012-04-27 | 2013-10-30 | 四川绿冶科技有限责任公司 | High temperature melt discharge pipe and smelting furnace with same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2820430B2 (en) | 1998-11-05 |
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