JPH0593217A - Device for separating molten iron - Google Patents
Device for separating molten ironInfo
- Publication number
- JPH0593217A JPH0593217A JP25175091A JP25175091A JPH0593217A JP H0593217 A JPH0593217 A JP H0593217A JP 25175091 A JP25175091 A JP 25175091A JP 25175091 A JP25175091 A JP 25175091A JP H0593217 A JPH0593217 A JP H0593217A
- Authority
- JP
- Japan
- Prior art keywords
- molten
- hot metal
- slag
- molten slag
- weir
- 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.)
- Withdrawn
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 9
- 239000002893 slag Substances 0.000 claims abstract description 84
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims description 76
- 229910052751 metal Inorganic materials 0.000 claims description 76
- 229910000805 Pig iron Inorganic materials 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 13
- 238000000926 separation method Methods 0.000 claims description 5
- 239000011819 refractory material Substances 0.000 claims description 2
- 238000010079 rubber tapping Methods 0.000 abstract description 7
- 230000001174 ascending effect Effects 0.000 abstract 1
- 238000000605 extraction Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 6
- 241001669573 Galeorhinus galeus Species 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 101100298225 Caenorhabditis elegans pot-2 gene Proteins 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
Landscapes
- Blast Furnaces (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えば高炉出銑主樋の
点検、補修等のため主樋やスキンマー部から抜き取った
溶銑と溶滓の溶融混合物を受け入れて溶銑より溶滓を分
離する装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is an apparatus for receiving a molten mixture of hot metal and slag extracted from a main gutter or a skinmer part for inspecting or repairing a blast furnace tap gutter and separating the slag from the hot metal. Regarding
【０００２】[0002]
【従来の技術】高炉出銑口から定期的或いは連続的に出
銑された溶銑及び溶滓は一般に、図１に示すように、主
樋１を経てスキンマー部２に集められ、ここで、比重差
を利用して溶銑と溶滓に分離されたのち溶銑は溶銑枝樋
３を経て溶銑傾注樋４に送られ、溶銑鍋５又はトピード
カーに受けられる。一方、溶滓は溶滓枝樋６及び溶滓傾
注樋７を経て溶滓鍋に受けられ、その後処理場に運ばれ
て徐冷されるか、或いは水滓攪拌槽８に投入されて水砕
スラグ化されるようになっている。2. Description of the Related Art Hot metal and slag tapped from a blast furnace taphole regularly or continuously are generally collected in a skinmer section 2 through a main gutter 1 as shown in FIG. After being separated into hot metal and slag using the difference, the hot metal is sent to the hot metal branch gutter 3 to the hot metal tilting gutter 4 and received by the hot metal ladle 5 or a tope car. On the other hand, the slag is received by a slag ladle after passing through the slag branch gutter 6 and the slag tilting gutter 7, and then transported to a treatment plant to be gradually cooled, or put into a water slag stirring tank 8 and granulated. It is supposed to be slag.
【０００３】主樋は稼働経過とともに内張耐火物の溶損
による侵蝕が進行するために定期的に或いは必要に応じ
て耐火物を点検したり、補修せねばならず、その際には
主樋に溜まる溶銑や溶滓を抜き取って主樋内を空にする
必要がある。そのため出銑が終了した時点で開口機を用
いて主樋１のスキンマー部２の底部に孔を開けて溶銑や
溶滓を抽出しており、抽出された溶銑や溶滓の溶融混合
物は、直接溶銑鍋やトピードカーに受けられるか、或い
は抽出樋上に設けた段差等により溶銑と溶滓とに概略分
離されている。そして鍋やトピードカーに受けた場合に
は、次工程である溶銑予備処理設備や転炉設備において
容器内に浮上している溶滓をスラグドラッガー等を用い
て掻き出している。また溶銑が完全に分離されず、溶銑
の混ざった溶滓は処理場に投棄して冷却固化され、その
後掘削破砕されて冷銑として回収されている。The main gutter has to be inspected or repaired periodically or as needed because the erosion of the lined refractory material due to melting damage progresses with the progress of operation. It is necessary to evacuate the main gutter by extracting the hot metal and molten slag accumulated in the. Therefore, when the tapping is finished, a hole is made in the bottom of the skinmer part 2 of the main gutter 1 to extract the hot metal and the molten metal using an opening machine, and the extracted molten metal and the molten mixture of the molten metal are directly It can be received by a hot metal ladle or a tope car, or is roughly separated into hot metal and molten slag by a step provided on an extraction gutter. When it is received in a pot or a tope car, the molten slag floating in the container is scraped out using a slag dragger or the like in the next step, hot metal pretreatment equipment or converter equipment. Further, the molten pig iron is not completely separated, and the molten slag mixed with the molten pig iron is dumped to the treatment plant, cooled and solidified, and then excavated and crushed to be collected as cold pig iron.
【０００４】[0004]
【発明が解決しようとする課題】上述する従来の方法で
は、主樋或いはスキンマー部から抜き取った溶銑と溶滓
は分離が行われておらず、概略分離が行われるにしても
不十分であるために次工程の脱珪、脱酸、脱リンなどの
溶銑予備処理工程での処理効率が低下する。処理効率を
上げるため、鍋を傾けて溶銑上に浮く溶滓をスラグドラ
ッガーを用いて掻き出すのも高温高熱で、多量の粉塵が
発生する劣悪な作業環境下で行う苛酷な作業であり、し
かもこの除去作業のため、主樋或いはスキンマー部から
の抜き取りから溶銑予備処理工程に至る連続作業が中断
され、工程上のロスが発生する。In the above-mentioned conventional method, the molten pig iron and the molten metal extracted from the main gutter or the skinmer portion are not separated, and even if they are roughly separated, they are insufficient. In addition, the treatment efficiency in the subsequent hot metal pretreatment process such as desiliconization, deoxidation and dephosphorization is reduced. In order to increase the processing efficiency, tilting the pan and scraping out the slag floating on the hot metal using a slag dragger is a high temperature and high heat, and it is a harsh work performed in a bad working environment where a large amount of dust is generated. Due to the removal work, the continuous work from the extraction from the main gutter or the skinmer part to the hot metal pretreatment process is interrupted, resulting in process loss.
【０００５】溶銑予備処理はまた、温度補償のため温度
を一層高めにして行うが、温度が高くなる程、溶滓によ
る耐火物への侵蝕が激しくなり、容器の耐火物原単位の
上昇を招く。溶銑と溶滓の分離が行われないか、行われ
るにしても不十分である場合、溶滓側から見ても溶銑の
混入により溶滓鍋が破孔したり、溶滓処理場等で溶滓を
破棄し、冷却後分離回収する際、回収費の増加を招くな
どの問題がある。The hot metal pretreatment is also carried out at a higher temperature for temperature compensation, but the higher the temperature, the more severe the corrosion of the refractory by the molten slag and the increase in the basic unit of refractory in the container. .. If the hot metal and the molten slag are not separated, or if they are insufficient, the molten slag mixture may cause the molten slag pan to rupture or melt at the slag treatment site. When the slag is discarded and separated and recovered after cooling, there is a problem that the recovery cost increases.
【０００６】以上述べたような問題はまた、本出願人が
先に実願平３−１９５７２号で提案したように、大樋か
ら排出した溶銑や溶滓を導き樋を経て鍋に受けるように
したものにおいても同様に生ずる。本発明は、上記の問
題を解決することを目的としてなされたもので、主樋の
スキンマー部から抜き取り、或いはこれより排出した溶
融混合物を受入れ、溶銑と溶滓を分離する装置を提供し
ようとするものである。The above-mentioned problems are also caused by the applicant, as previously proposed in Japanese Patent Application No. 3-19572, to guide the hot metal and slag discharged from the large gutter and receive them in the pan through the gutter. The same applies to things. The present invention has been made for the purpose of solving the above problems, and an object of the present invention is to provide an apparatus for separating a molten pig iron and a molten slag by receiving a molten mixture extracted from or discharged from a main gutter skinmer portion. It is a thing.
【０００７】[0007]
【課題の解決手段】本発明の溶銑と溶滓との分離装置
は、高炉出銑主樋のスキンマー部から抽出され、或いは
これより排出し、導き樋より導き出された溶銑や溶滓の
溶融混合物を受入れる耐火物で内張りされた容器よりな
り、容器内は堰で複数の槽に仕切られ、そのうちの少な
くとも一つの槽には、流出口が堰より低いレベルをなす
溶銑のストッパーゲートを設けたものであり、堰より溢
れ出た溶滓が流れ込む溶滓槽には好ましくはその底部に
溶滓排出用のノズルが設けられる。The hot metal and molten slag separation apparatus of the present invention is a molten mixture of molten pig iron and molten slag extracted from the skinmer part of the blast furnace tap gutter and discharged therefrom. It consists of a container lined with a refractory that receives the inside of the container, and the container is divided into multiple tanks by a weir, and at least one of the tanks is provided with a hot metal stopper gate whose outlet is lower than the weir. The molten slag tank, into which the molten slag overflowing from the weir flows, is preferably provided with a nozzle for discharging the molten slag at the bottom thereof.
【０００８】[0008]
【作用】抽出時、開口機にて主樋のスキンマー部の残銑
抜部を開くと、抽出が開始されるが、出銑初期は溶銑の
みで、容器の槽内に流入した溶銑はそのまゝストッパー
ゲートの流出口を通して排出される。出銑途中より溶銑
に溶滓が混入し始めると、ストッパーゲートの流出口が
閉じられるか、或いは流出口が絞り込まれて溶銑の排出
量が制限される。これにより溶滓が混ざった状態で流入
する溶銑が槽内に溜まり始め、溜まった溶融混合物は比
重差により上層の溶滓と下層の溶銑とに分離される。槽
内に溜まる量が次第に増え、嵩が増してやがて堰まで達
すると、上層の溶滓が堰より溢れ出て隣接する溶滓槽に
流れ込む。溶滓槽にノズルが設けられているものにあっ
ては、流れ込んだ溶滓は直ちに槽底部のノズルより排出
される。[Function] During extraction, when the residual hot metal removal part of the skinmer part of the main gutter is opened with an opening machine, extraction starts, but at the initial stage of tapping, only the hot metal is left, and the hot metal that has flowed into the tank of the container is as it is. 〝Discharge through the outlet of the stopper gate. When the molten metal begins to mix into the hot metal from the middle of tapping, the outlet of the stopper gate is closed or the outlet is narrowed to limit the amount of hot metal discharged. As a result, the hot metal that flows in while the molten slag is mixed begins to accumulate in the tank, and the accumulated molten mixture is separated into the upper slag and the lower smelt due to the difference in specific gravity. When the amount accumulated in the tank gradually increases and reaches the weir when the volume increases, the upper-layer slag overflows from the weir and flows into the adjacent slag tank. In the case where the slag tank is provided with a nozzle, the slag that has flowed in is immediately discharged from the nozzle at the bottom of the tank.
【０００９】この間、ストッパーゲートの流出口は閉じ
られているか、或いは絞り込まれて排出量が制限されて
いるが、溶滓が堰より溢れ出る前後において開くか、或
いは一層更に開かれる。これにより下層の溶銑が排出さ
れるか、或いは排出量が増大する。溶銑の排出量が多い
か、或いは出銑途上で溶滓の流入量が多くなり、溶銑の
レベルが下がって溶滓がストッパーゲートの流出口まで
達すると、溶滓が共に排出されるようになり、また逆に
溶銑の排出量が少な過ぎたりして溶銑のレベルが上がる
と、堰より溢れ出るようになる。そこで、ストッパーゲ
ートは溶滓のレベルが降下してストッパーゲートの流出
口に達することがないように、また溶銑が堰より溢れ出
ることのないように制御される。すなわちストッパーゲ
ートの流出口の開閉或いは絞り込みが行われ、これによ
り溶銑がストッパーゲートの流出口より断続的に排出さ
れるか、或いは溶銑の排出量の調節が行われる。During this time, the outlet of the stopper gate is closed or is narrowed down to limit the discharge amount, but it is opened before or after the molten slag overflows from the weir, or is further opened. As a result, the hot metal in the lower layer is discharged or the discharge amount increases. When the amount of molten pig iron discharged is large or the amount of molten metal inflow increases during tapping and the molten iron level decreases and reaches the outlet of the stopper gate, the molten iron will be discharged together. On the contrary, if the level of hot metal rises due to too little hot metal discharge, it will overflow from the weir. Therefore, the stopper gate is controlled so that the level of the molten slag does not drop and reach the outlet of the stopper gate, and the hot metal does not overflow from the weir. That is, the outlet of the stopper gate is opened and closed or narrowed down, whereby the hot metal is intermittently discharged from the outlet of the stopper gate, or the amount of hot metal discharged is adjusted.
【００１０】分離された下層部の溶銑は、排出口を通っ
て隣接槽に流入し、そこで溶滓を分離して下の溶銑を排
出するなど、分離を数段階に亘って実施するようにして
もよい。主樋のスキンマー部から排出した溶銑の溶融混
合物を導き樋を経て受け入れるときには、ストッパーゲ
ートの流出口は始めから閉じておかれ、溶融混合物が溜
められる。そして上層の溶滓が堰より溢れ出る前後にお
いて、上述するようなストッパーゲートの制御が行われ
る。The separated lower layer hot metal flows into the adjacent tank through the discharge port, where the molten slag is separated and the lower molten metal is discharged, so that the separation is carried out in several stages. Good. When the molten mixture of the hot metal discharged from the skinmer part of the main gutter is guided and received through the gutter, the outlet of the stopper gate is closed from the beginning, and the molten mixture is stored. The above-mentioned control of the stopper gate is performed before and after the upper-layer slag overflows from the weir.
【００１１】本発明に係る容器は、好ましくは移動可
能、より好ましくはレール上を走行できるようにされ
る。抽出が開始されると、始めは溶銑のみが流出し、途
中で溶滓が混ざり始めて最後には溶滓のみが排出される
が、容器を移動させることによって溶滓を溶滓槽に受け
ることができ、溶滓の溶銑への混入を防ぐことができ
る。しかも主樋のスキンマー部から溶銑や溶滓が排出し
たときには導き樋の注出口へ移動させて溶融混合物を受
けることができるようになるほか、容器の交換や補修も
容易となる。The container according to the invention is preferably movable and more preferably able to run on rails. When the extraction starts, only the hot metal flows out at the beginning, the molten slag begins to mix in the middle, and only the molten slag is discharged at the end, but by moving the container, the molten slag can be received in the molten slag tank. It is possible to prevent the mixture of molten slag into the hot metal. Moreover, when hot metal or molten slag is discharged from the skinmer part of the main gutter, it can be moved to the spout of the gutter to receive the molten mixture, and the container can be easily replaced and repaired.
【００１２】容器の各槽はまた、ストッパーゲートの流
出口或いはノズルに向かって傾斜を設け、溶滓や溶銑が
スムースに滞りなく流出できるようにするのが望まし
い。It is desirable that each tank of the container is also provided with an inclination toward the outlet of the stopper gate or the nozzle so that the molten slag and the molten pig iron can smoothly and smoothly flow out.
【００１３】[0013]
【実施例】箱型の容器１１はコロ１２を介してレール１
３上を走行できるようにしてあり、油圧シリンダー１４
により進退（図においては左右動）できるようになって
いる。容器１１は内部がレンガまたはキャスタブルでラ
イニングされ、容器１１の深さの1/2 〜2/3 の高さの堰
１５によって二つの槽１６、１７に仕切られている。[Example] A box-shaped container 11 is a rail 1 via a roller 12.
It is possible to run on 3 and hydraulic cylinder 14
It is possible to move back and forth (left and right in the figure). Container 11 is internally lined with brick or castable, it is partitioned into two tanks 16 and 17 by 1/2 to 2/3 of the weir 15 of the height of the depth of the container 11.
【００１４】槽１６は一側に排出口１８を設け、これに
下向きに開口する流出口１９を備えたストッパーゲート
２１が嵌合して上下にスライドできるようにしてあり、
図示しない油圧シリンダーの作動により昇降して流出口
１５の開閉及び開き具合を調節できるようになってい
る。２２は案内樋である。他方の槽である溶滓槽１７に
は底部に孔を設けてノズル２３を下向きにして嵌合し、
嵌合部は耐火物にてシールされている。The tank 16 is provided with a discharge port 18 on one side, and a stopper gate 21 having an outlet 19 opening downward is fitted into the discharge port 18 so that it can slide up and down.
By operating a hydraulic cylinder (not shown), it is possible to move up and down to adjust the opening / closing and opening degree of the outlet 15. 22 is a guide gutter. The molten slag tank 17, which is the other tank, has a hole at the bottom and is fitted with the nozzle 23 facing downward.
The fitting part is sealed with refractory.
【００１５】上記各槽１６及び１７はまた、底部が排出
口１８或いはノズル２３に向かって下向きに傾斜し、溶
銑或いは溶滓がスムースに排出できるようにしてある。
スキンマー部からの抽出を行うときには次のようにして
行われる。抽出を行うに当たっては先ず、ストッパーゲ
ート２１を上げて流出口１９を開いた状態で槽１６をス
キンマー残銑抜部２４から抽出される溶銑の受け入れ位
置に位置させ、かつ案内樋２２の抽出口下に溶銑鍋２５
を、ノズル下に溶滓鍋２６を待機させておく。Further, the bottoms of the tanks 16 and 17 are inclined downward toward the discharge port 18 or the nozzle 23 so that the hot metal or the molten metal can be discharged smoothly.
The extraction from the skinmer portion is performed as follows. In carrying out the extraction, first, with the stopper gate 21 raised and the outlet 19 open, the tank 16 is positioned at the position for receiving the hot metal extracted from the skinmer residual hot metal extraction portion 24, and under the extraction opening of the guide trough 22. 25 hot metal pot
The slag ladle 26 is made to stand by under the nozzle.
【００１６】以上の準備が整ったのち、開口機にてスキ
ンマー残銑抜部２４を開き、抽出を開始する。出銑初期
は溶銑のみで槽１６に流出した溶銑は槽内に溜まること
なく流出口１９より案内樋２２を経、溶銑鍋２５に流入
する。出銑途中より溶銑に溶滓が混入してくると、図示
しない油圧シリンダーの作動によりストッパーゲート２
１を降下させて流出口１９の絞り込みを行う。これによ
り溶銑の排出量が減少するとともに槽内に溶銑及び溶滓
が溜まり始める。槽内に溜まった溶銑及び溶滓は、比重
差によって溶滓が分離浮上する。槽内に溜まる量が次第
に増え、嵩が増して、やがて堰１５に達すると、上層の
溶滓が堰１５より溢れ出て溶滓槽１７に流れ込み、その
まゝノズル２３を経て溶滓鍋２６に流入する。以降はス
トッパーゲート２１の操作により溶銑の排出量を制御
し、溶銑が堰より溢れ出たり、溶滓が流出口１９より排
出されないように注意する。After the above preparations are completed, the skinmer residual pig ironing section 24 is opened by an opening machine to start extraction. At the initial stage of tapping, only the hot metal flows into the tank 16, and the hot metal does not accumulate in the tank and flows from the outlet 19 through the guide trough 22 and into the hot metal ladle 25. When the molten metal enters the hot metal during tapping, the stopper gate 2 is activated by the operation of a hydraulic cylinder (not shown).
1 is lowered and the outlet 19 is narrowed down. As a result, the amount of hot metal discharged decreases and the hot metal and slag start to accumulate in the tank. The molten pig iron and slag accumulated in the tank are separated and floated due to the difference in specific gravity. When the amount accumulated in the tank gradually increases and becomes bulky, and eventually reaches the weir 15, the upper-layer slag overflows from the weir 15 and flows into the slag tank 17, and the slag ladle 26 passes through the nozzle 23. Flow into. After that, the discharge amount of the hot metal is controlled by operating the stopper gate 21 so that the hot metal does not overflow from the weir and the slag is not discharged from the outlet 19.
【００１７】抽出が進行し、溶滓のみが流出するように
なると、油圧シリンダー１４の作動により容器１１を押
し動かし、溶滓槽１７を溶滓の受け入れ位置に切換え
る。これと共に溶滓鍋２６もノズル下に移動され、引き
続き溶滓が溶滓鍋に流入するようにされる。槽１６側に
残る溶滓は、流出口１９からの溶銑の排出に溶滓が混ざ
るようになると、ストッパーゲート２１の降下により流
出口１９が一旦塞がれる。そして溶銑鍋２５を溶滓鍋２
６と入れ換えたのち再びストッパーゲート２１を引上げ
て全開させ排出させる。When the extraction progresses and only the molten sludge begins to flow out, the container 11 is pushed by the operation of the hydraulic cylinder 14 to switch the molten sludge tank 17 to the molten sludge receiving position. Along with this, the slag ladle 26 is also moved under the nozzle so that the slag lava will subsequently flow into the slag ladle. When the molten slag remaining on the tank 16 side is mixed with the discharged hot metal from the outlet 19, the stopper gate 21 descends to temporarily close the outlet 19. Then, the hot metal pot 25 and the molten slag pot 2
After replacing with 6, the stopper gate 21 is again pulled up to be fully opened and discharged.
【００１８】抽出が完了し、全ての作業を終えると、油
圧シリンダー１４の作動により容器１１を元の位置に戻
し、次回の抽出が開始されるまでそのまゝ待機される。When the extraction is completed and all the work is completed, the container 11 is returned to the original position by the operation of the hydraulic cylinder 14, and the process is kept on standby until the next extraction is started.
【００１９】[0019]
【発明の効果】本発明は、以上のように構成され、次の
ような効果を奏する。請求項１記載の分離装置は以上の
ように、主樋やスキンマー部から抽出され、或いはこれ
より漏出した溶銑や溶滓の溶融混合物を一時的に溜めて
溶銑と溶滓とに分離し、溶銑をストッパーゲートの流出
口より排出させるとともに溶滓を堰より溢れ出させて排
出するようにしたもので、溶銑と溶滓の分離を充分に行
うことができるため溶銑予備処理工程での処理効率が向
上すること、溶滓を掻き出すような除去作業が不要で、
溶銑予備処理工程に至るまでの連続作業が可能となり、
またそのために溶銑予備処理工程での温度補償を少なく
することができ、したがって溶滓による耐火物へのと侵
蝕を少なくできること、溶滓中に溶銑が混入しないため
溶滓鍋の破孔が生じにくゝなり、溶滓の回収費を低減さ
せることができる。The present invention is constructed as described above and has the following effects. As described above, the separating apparatus according to claim 1 temporarily accumulates the molten pig iron or the molten mixture of molten slag extracted from the main gutter or the skinmer portion or leaked therefrom, and separates it into the molten pig iron and the molten slag. Is discharged from the outlet of the stopper gate and the molten slag is made to overflow from the weir and discharged.Since the molten pig iron and the molten slag can be sufficiently separated, the treatment efficiency in the hot metal pretreatment step is improved. To improve, eliminating the need for removal work such as scraping off molten slag,
Enables continuous work up to the hot metal pretreatment process,
Therefore, the temperature compensation in the hot metal pretreatment process can be reduced, and therefore the corrosion of the refractory by the slag can be reduced. It is possible to reduce the cost of collecting molten slag.
【００２０】請求項２記載の分離装置のように、ストッ
パーゲートを昇降して溶銑の排出量を調節できるように
すれば、溶銑のレベルを一定範囲に維持し、溶滓の混ざ
らない溶銑或いは溶銑の混ざらない溶滓を得ることがで
きる。請求項３記載の分離装置においては、堰より溢れ
出た溶滓をノズルに集めてこれより排出することがで
き、また請求項４記載の分離装置のように、槽の底部を
ストッパーゲートの流出口に向かって、或いはノズルに
向かって傾斜させれば、溶銑或いは溶滓をスムースに排
出することができ、排出途上で滞って固化するのを防ぐ
ことができる。When the stopper gate is moved up and down so that the amount of hot metal discharged can be adjusted as in the separating apparatus according to the second aspect of the present invention, the level of hot metal is maintained within a certain range, and the hot metal or hot metal in which the molten slag is not mixed is provided. It is possible to obtain molten slag that does not mix. In the separation device according to claim 3, the molten slag overflowing from the weir can be collected in a nozzle and discharged from the nozzle, and, like the separation device according to claim 4, the bottom of the tank flows through the stopper gate. By inclining toward the outlet or toward the nozzle, the molten pig iron or slag can be smoothly discharged, and it is possible to prevent solidification due to being stagnated during discharging.
【００２１】請求項５記載の分離装置においては、容器
を移動させることによって溶滓を溶滓槽に受けて溶銑と
の混入を防ぐことができたり、溶銑や溶滓が主樋のスキ
ンマー部から漏出したときには導き樋の抽出口まで移動
してこれを受けることができ、また所望箇所に移動させ
て容器を交換したり、補修するのが容易となる。In the separating apparatus according to the fifth aspect of the present invention, by moving the container, the molten slag can be received in the molten slag tank to prevent mixing with the molten pig iron, or the molten pig iron or molten slag can be removed from the skinmer part of the main gutter. When it leaks, it can be moved to the extraction opening of the guiding gutter to receive it, and it can be easily moved to a desired location to replace or repair the container.
【図１】高炉から出銑される溶銑や溶滓の流出径路を示
す略図。FIG. 1 is a schematic diagram showing an outflow path of hot metal and slag discharged from a blast furnace.
【図２】本発明に係る溶銑の分離装置を示す斜視図。FIG. 2 is a perspective view showing a hot metal separator according to the present invention.
１１・・容器 １５・・堰 １６・・槽 １７・・溶滓槽 ２１・・ストッパーゲート ２３・・ノズル 11 ・ ・ Container 15 ・ ・ Weir 16 ・ ・ Tank 17 ・ ・ Slag tank 21 ・ ・ Stopper gate 23 ・ ・ Nozzle
Claims (5)
れ、或いはこれより排出し、導き樋より導き出された溶
銑や溶滓の溶融混合物を受入れる耐火物で内張りされた
容器よりなり、容器内は堰で複数の槽に仕切られ、その
うちの少なくとも一つの槽には、流出口が堰より低いレ
ベルをなす溶銑のストッパーゲートを設けてなる溶銑の
分離装置。1. A vessel lined with a refractory material that receives a molten mixture of molten pig iron and molten slag that is extracted from or discharged from the blast furnace tap gutter and the skinmer section, and that is introduced from the guiding gutter. Is a hot metal separation device in which a weir is partitioned into a plurality of tanks, and at least one of the tanks is provided with a hot metal stopper gate whose outlet is at a lower level than the weir.
排出量を調節することができる請求項１記載の溶銑の分
離装置。2. The hot metal separator according to claim 1, wherein the stopper gate can be moved up and down to adjust the amount of hot metal discharged.
は、底部に溶滓排出用のノズルが設けられる請求項１記
載の溶銑の分離装置。3. The molten iron separating apparatus according to claim 1, wherein the molten slag tank, into which the molten slag overflowing from the weir flows, is provided with a nozzle for discharging the molten slag at the bottom.
口に向かって、或いはノズルに向かって下向きに傾斜し
て形成される請求項３記載の溶銑の分離装置。4. The hot metal separator according to claim 3, wherein the bottom of each tank is formed so as to be inclined downward toward the outlet of the stopper gate or toward the nozzle.
１記載の溶銑の分離装置。5. The hot metal separator according to claim 1, wherein the container is movable on a rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25175091A JPH0593217A (en) | 1991-09-30 | 1991-09-30 | Device for separating molten iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25175091A JPH0593217A (en) | 1991-09-30 | 1991-09-30 | Device for separating molten iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0593217A true JPH0593217A (en) | 1993-04-16 |
Family
ID=17227372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25175091A Withdrawn JPH0593217A (en) | 1991-09-30 | 1991-09-30 | Device for separating molten iron |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0593217A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030050426A (en) * | 2001-12-18 | 2003-06-25 | 주식회사 포스코 | Device For Preventing Molten Pig Iron From Overflow In Skimmer Of Blast Furnace |
| KR101883384B1 (en) * | 2017-05-08 | 2018-07-30 | 주식회사 포스코 | Treatment apparatus for molten metal and the method thereof |
| CN114800788A (en) * | 2022-03-22 | 2022-07-29 | 北京利尔高温材料股份有限公司 | Slag skimmer quick-change mold and preparation method of iron runner |
-
1991
- 1991-09-30 JP JP25175091A patent/JPH0593217A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030050426A (en) * | 2001-12-18 | 2003-06-25 | 주식회사 포스코 | Device For Preventing Molten Pig Iron From Overflow In Skimmer Of Blast Furnace |
| KR101883384B1 (en) * | 2017-05-08 | 2018-07-30 | 주식회사 포스코 | Treatment apparatus for molten metal and the method thereof |
| CN114800788A (en) * | 2022-03-22 | 2022-07-29 | 北京利尔高温材料股份有限公司 | Slag skimmer quick-change mold and preparation method of iron runner |
| CN114800788B (en) * | 2022-03-22 | 2023-11-28 | 北京利尔高温材料股份有限公司 | Preparation method of skimming tool quick-change mold and iron runner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19981203 |