JPH0639610B2 - Hot Metal Receiving Method for Hot Metals during Desiliconization of Cast Floor - Google Patents
Hot Metal Receiving Method for Hot Metals during Desiliconization of Cast FloorInfo
- Publication number
- JPH0639610B2 JPH0639610B2 JP60117460A JP11746085A JPH0639610B2 JP H0639610 B2 JPH0639610 B2 JP H0639610B2 JP 60117460 A JP60117460 A JP 60117460A JP 11746085 A JP11746085 A JP 11746085A JP H0639610 B2 JPH0639610 B2 JP H0639610B2
- Authority
- JP
- Japan
- Prior art keywords
- hot metal
- level
- car
- slag
- hot
- 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 - Fee Related
Links
- 239000002184 metal Substances 0.000 title claims description 80
- 229910052751 metal Inorganic materials 0.000 title claims description 80
- 238000000034 method Methods 0.000 title claims description 14
- 150000002739 metals Chemical class 0.000 title 1
- 239000002893 slag Substances 0.000 claims description 38
- 230000000630 rising effect Effects 0.000 claims description 7
- 229910000805 Pig iron Inorganic materials 0.000 description 34
- 241001071864 Lethrinus laticaudis Species 0.000 description 24
- 238000005187 foaming Methods 0.000 description 11
- 238000005266 casting Methods 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/04—Removing impurities other than carbon, phosphorus or sulfur
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Description
【発明の詳細な説明】 ＜発明の目的＞ 産業上の利用分野 本発明は鋳床脱珪時の混銑車の溶銑受銑方法に係り、詳
しくは、高炉から受銑樋、傾注樋を介して混銑車へ受銑
する際に、この傾注樋の両端に２台の混銑車を待機さ
せ、鋳床脱珪時に混銑車内のスラグのフォーミングレベ
ルを検出し、一方の混銑車でフォーミングレベルが一定
基準に達しかつ他方の混銑車での湯面が安定したとき
に、注銑を他方の混銑車に切換え、その後、一方の混銑
車でスラグフォーミングがおさまったときには、注銑を
一方の混銑車に切換えて、一方の混銑車に所定量まで安
定して受銑させることができる混銑車の受銑方法に係
る。DETAILED DESCRIPTION OF THE INVENTION <Purpose of the Invention> Industrial field of the invention The present invention relates to a hot metal receiving method for a mixed piggy wheel at the time of desiliconization of a casting bed, and more specifically, from a blast furnace through a receiving gutter and a tilting gutter. When receiving the hot metal to the hot metal, two hot metal cars stand by at both ends of this gutter, and the forming level of the slag inside the hot metal car is detected when the cast floor is desiliconized, and one of the hot metal cars has a constant forming level. Is reached and when the surface of the molten metal in the other hot metal is stable, the hot metal is switched to the other hot metal car, and when the slag foaming is stopped by the one hot metal car, the hot metal is switched to the one hot metal car. The present invention relates to a pig iron receiving method for a pig iron car capable of stably receiving one pig iron to a predetermined amount.
従来の技術 従来、混銑車への注銑は作業者の目視によって監視され
ている。この目視による監視方法では、火花や発塵のた
めに、鋳床脱珪に伴なう混銑車内のスラグのフォーミン
グレベルが見えにくく受銑完了レベルの判断を誤ること
が多く、この遅れで溶銑が溢流し、大事故を起す危険が
ある。2. Description of the Related Art Conventionally, pouring of hot metal into a hot metal truck is monitored visually by a worker. In this visual monitoring method, the forming level of the slag in the mixed pig iron car due to desiliconization of the cast bed is difficult to see due to sparks and dust generation, and the judgment of the completion level of the hot metal is often erroneous. There is a risk of overflow and serious accident.
そこで、混銑車への注銑を目視に頼らない方法として、
例えば特開昭４９−５８３０号公報や、特開昭５１−２
９３０３号公報に示す方法が提案されている。Therefore, as a method that does not rely on visual inspection for pouring hot metal into a hot metal,
For example, JP-A-49-5830 and JP-A-51-2
The method shown in Japanese Patent No. 9303 has been proposed.
これら方法は混銑車内の受銑重量を検出し、これにもと
ずいて、受銑を制御するものである。These methods detect the weight of the pig iron in the hot metal car and, based on this, control the pig iron.
混銑車への注銑時には、受銑樋、傾注樋又は混銑車内へ
の脱珪剤の投入という鋳床脱珪にともなって、スラグの
フォーミング現象が生じる。このスラグのフォーミング
は泡立ち現象であって、重量変化を伴なわずに体積が膨
脹して混銑車からの溢流などの事故が生じる。しかしな
がら、これを予知防止するのには、上記の受銑重量の検
出によって受銑レベルの制御を行なう方法では達成でき
ない。At the time of pouring into a hot metal truck, a slag forming phenomenon occurs due to casting floor desiliconization such as receiving pigtail trough, tilting trough, or introduction of a desiliconizing agent into the hot metal truck. The forming of the slag is a foaming phenomenon, and the volume expands without changing the weight and an accident such as overflow from the towed car occurs. However, to prevent this from being predicted, the above method of controlling the pig iron level by detecting the pig iron weight cannot be achieved.
すなわち、スラグフォーミングとは混銑車内に混入した
スラグが泡立つ現象であって、脱珪時においては脱珪剤
の添加により生成したスラグが発生するＣＯ２ガスによ
ってスラグフォーミングを起し易く、このスラグフォー
ミングは重量の変化を伴なわず、急速に体積を膨脹さ
せ、その結果、炉口からの吐出に至るもので重量変化の
検出による上記技術では溶銑の吐出を防ぐことは不可能
である。That is, slag foaming is a phenomenon in which the slag mixed in the hot metal car is bubbling, and during desiliconization, slag foaming is easily caused by CO 2 gas generated from the slag generated by the addition of the desiliconizing agent. Causes the volume to expand rapidly without changing the weight, resulting in discharge from the furnace port, and it is impossible to prevent the discharge of hot metal by the above-mentioned technique by detecting the change in weight.
発明が解決しようとする問題点 本発明は、これらの問題点を解決することを目的とし、
具体的には、鋳床脱珪時に受銑レベルを監視でき、安定
した混銑車の受銑管理を可能とする鋳床脱珪時の溶銑受
銑方法を提供することを目的とする。Problems to be Solved by the Invention The present invention aims to solve these problems,
Specifically, it is an object of the present invention to provide a hot metal receiving method at the time of cast bed desiliconization, which can monitor the level of the hot metal at the time of desiliconization of the cast bed and enable stable pig iron management of a mixed-hot metal vehicle.
問題点を解決するための手段ならびにその作用 本発明は、傾注樋の両端部に２台の混銑車を待機させて
おき、混銑車内のスラグのフォーミングレベルをマイク
ロ波レベル計で検出しながら、一方の混銑車に注銑する
ときに、一方の混銑車内のスラグのフォーミングレベル
がある基準点に達しかつ他方の混銑車内の溶銑の湯面レ
ベルの上昇速度が零であるときには、信号により、傾注
樋を動作させて他方の混銑車に注入方向を切換える一
方、一方の混銑車内のスラグのフォーミングレベルがあ
る基準点以下におさまったときには、再び、傾注樋を作
動させて、一方の混銑車に注入方向を切換え、この傾注
樋の交互切換えを行ないつつ、一方の混銑車内の受銑レ
ベルが予定レベルに達するまで受銑することを特徴とす
る。Means for Solving Problems and Actions Thereof The present invention has two mixed piggy-ring cars on standby at both ends of a slanting trough and detects the forming level of slag in the mixed piggy-ring car by a microwave level meter while When pouring into the hot metal of No. 1, when the slag forming level in one of the hot metal cars reaches a certain reference point and the rate of rise of the hot metal level in the other hot metal car is zero, the signal To change the pouring direction to the other hot metal car, and when the forming level of the slag inside the one hot metal car falls below a certain reference point, the tilting gutter is activated again to direct the pouring direction to the one hot metal car. And the alternate switching of the gutters is carried out, and the pig iron is received until the pig iron level in one of the mixed piggy cars reaches a predetermined level.
以下、本発明の手段たる構成ならびに作用について図面
を用いて説明する。Hereinafter, the configuration and operation of the present invention will be described with reference to the drawings.
第１図は本発明の実施態様の一例を示す説明図、第２図
はマイクロ波式レベル計が記録したスラグフォーミング
現象を示すグラフ、第３図は本発明方法によって受銑管
理を実施した場合の混銑車内受銑レベルの変化を示すグ
ラフである。FIG. 1 is an explanatory view showing an example of an embodiment of the present invention, FIG. 2 is a graph showing a slag forming phenomenon recorded by a microwave type level meter, and FIG. 3 is a case where pig iron management is carried out by the method of the present invention. 3 is a graph showing changes in the level of hot metal inside the mixed hot metal.
第１図において符号１は出銑樋、２は傾注樋、３および
７は混銑車、４および８はマイクロ波式レベル計、５は
警報設定器、６は傾注樋設定器、９は微分演算器、１０
は傾注樋動作用モータ、１１は打込ランス、１２は鋳床
である。In FIG. 1, reference numeral 1 is a tap gutter, 2 is a downspout gutter, 3 and 7 are a towbar, 4 and 8 are microwave level gauges, 5 is an alarm setting device, 6 is a downspout setting device, and 9 is a differential operation. Bowl, 10
Is a motor for tilt gutter operation, 11 is a driving lance, and 12 is a casting floor.
第１図に示すように鋳床脱珪を行なう際に、まず、鋳床
１２下に２台の混銑車３、７を配車し、一方の混銑車３
に受銑を開始する。鋳床脱珪装置により脱珪剤の投入が
開始されるとスラグのフォーミングが生じ、このフォー
ミングレベルを溶銑レベル計により常時監視する。一方
の混銑車３内のスラグのフォーミングレベルがある基準
点に達した時、溶銑レベル計４により接点出力を出し、
この接点出力のほか、他方の混銑車７の湯面レベルの上
昇速度 Ｖ（＝ｄＬ／ｄｔ）≒０ の条件（なお、他方の混銑車７の湯面レベルが目標レベ
ルに達していない）条件によって、つまり２つのＡＮＤ
条件により傾注樋設定器６からの信号によってモータ１
０が駆動し、傾注樋２が自動的に動き、一方の混銑車３
から他方の混銑車７に注銑が切換えられ、一方の混銑車
３への注銑を一時的に停止する。When performing cast bed desiliconization as shown in FIG. 1, first, two cast iron wheels 3, 7 are arranged under the cast floor 12, and one of the mixed piggy wheels 3 is used.
To start receiving the pig. When the casting bed desiliconizer starts to add the desiliconizing agent, slag foaming occurs, and the foaming level is constantly monitored by a hot metal level meter. When the forming level of the slag in one of the hot metal wheels 3 reaches a certain reference point, a contact output is output by the hot metal level meter 4,
In addition to this contact output, the condition that the rising speed of the molten metal level of the other mixed piggy wheel V (= dL / dt) ≈0 (the molten metal level of the other mixed piggy car 7 has not reached the target level) By, that is, two ANDs
Depending on the conditions, the motor 1 is sent by the signal from the tilting gutter setting device 6.
0 drive, tilt gutter 2 moves automatically, one torch car 3
From the other to the hot metal wheel 7, the hot metal to the one hot metal wheel 3 is temporarily stopped.
その後、一方の混銑車３の湯面上昇速度 Ｖ（ｄＬ／ｄｔ）≒０ となった条件でスラグフォーミングがおさまり、このと
きの一方の混銑車３の湯面レベルが基準点以下に低下し
たという両条件がともに満たすことにより、傾注樋設定
器６からの信号によってモータ１０が駆動し、傾注樋２
が自動的に動き、再び一方の混銑車３に受銑する。After that, the slag foaming was stopped under the condition that the molten metal surface rising speed V (dL / dt) of one of the mixed piggy car 3 became 0, and the molten metal surface level of one of the mixed piggy car 3 fell below the reference point. When both conditions are satisfied, the motor 10 is driven by the signal from the tilting gutter setting device 6, and the tilting gutter 2
Automatically moves and is received again by one of the mixed piggy cars 3.
このように２台の混銑車３、７間で交互に受銑をくり返
して一方の混銑車３に注銑すると、スラグフォーミング
がおきても、一方の混銑車３には所定のレベルまで安全
に受銑することが可能となる。In this way, if the pig iron is poured between one of the two pig iron wheels 3 and 7 alternately and the pig iron is poured into the one pig iron wheel 3, even if slag foaming occurs, the one pig iron wheel 3 can be safely heated to a predetermined level. It becomes possible to receive pig iron.
この際に、スラグのフォーミングレベルを検出するレベ
ル計について検討を行なった結果、マイクロ波式レベル
計が有効であることが分った。At this time, as a result of studying a level meter for detecting the slag forming level, it was found that the microwave level meter is effective.
溶銑のレベル計として、接触式検出素子を用いるもの
が、特開昭４９−６５４８８号、特開昭５０−１２２４
０６号、実開昭５１−６１８５４号、実開昭５１−７４
４６２号、実開昭５１−７４４６３号などの公報に記載
されている。しかし、これらは何れも検出素子がフォー
ミングスラグ中に埋設し、レベル検出が不能である。As a level meter for hot metal, those using a contact type detection element are disclosed in JP-A-49-65488 and JP-A-50-1224.
No. 06, No. 51-61854, No. 51-74
No. 462 and Japanese Utility Model Laid-Open No. 51-74463. However, in all of these, the detection element is embedded in the forming slag, and the level cannot be detected.
また、音響を用いる非接触式のものは特開昭４８−７３
１９５号、実開昭５３−１３４９５９号公報に記載され
ている。しかし、これらはフォーミングスラグによって
音響伝播が阻害され、レベル検出が不能となる。A non-contact type using sound is disclosed in Japanese Patent Laid-Open No. 48-73.
195 and Japanese Utility Model Publication No. 53-134959. However, in these, sound propagation is hindered by the forming slug, and level detection becomes impossible.
これに対し、マイクロ波式レベル計は第２図に示す如
く、フォーミングスラグの表面層の変化を検出すること
ができ、本発明に好適に使用できる。On the other hand, the microwave level meter can detect a change in the surface layer of the forming slag as shown in FIG. 2, and can be suitably used in the present invention.
すなわち、第２図は受銑開始より受銑止めまでのスラグ
のフォーミングスラグをマイクロ波式レベル計で追跡、
記録したグラフであって、混銑車内のスラグのフォーミ
ングレベルの変化を確実に検出記録していることが分
る。なお、図中Ａは受銑開始時、Ｂは受銑止め時を示
し、図中の円内はスラグのフォーミングを示している。That is, Fig. 2 shows the forming slag of slag from the start of pig iron reception to the stop of pig iron with a microwave level meter,
From the recorded graph, it can be seen that changes in the forming level of the slag inside the hot metal vehicle are reliably detected and recorded. In the figure, A indicates the start of pig iron, B indicates the stop of pig iron, and the circle in the figure indicates the forming of slag.
なお、マイクロ波式レベル計とは、レベル検出にマイク
ロ波を利用し、発射したマイクロ波がスラグ表面に反射
して戻る所要時間から反射箇所までの距離を検出するも
ので既に実用化されているレベル計である。A microwave type level meter uses microwaves for level detection and detects the distance from the required time for the emitted microwaves to be reflected back to the slag surface to the reflection point and has already been put to practical use. It is a level meter.
実施例 以下、実施例により更に説明する。Examples Hereinafter, examples will be further described.
予め、２台の混銑車を主線および副線に配車しておき出
銑を開始する。高炉から出銑された溶銑は、出銑樋１、
傾注樋２を流れて主線に配車された一方の混銑車３へ受
銑される。また、この工程において、鋳床脱珪として脱
珪剤が出銑樋１、傾注樋２上若しくは混銑車内に打込ま
れる。その結果、一方の混銑車３内においても脱珪反応
が起こり、スラグのフォーミング現象が起こる。The two mixed piggy cars are allocated to the main line and the sub line in advance, and tapping is started. The hot metal tapped from the blast furnace is tapped gutter 1.
It flows through the leaning trough 2 and is received by one of the mixed piggy cars 3 which is assigned to the main line. Further, in this step, a desiliconizing agent is cast on the tap pipe 1, the tilting gutter 2 or in the mixed piggy car as the cast bed desiliconization. As a result, a desiliconization reaction also occurs in one of the hot metal wheels 3, and a slag forming phenomenon occurs.
このスラグのフォーミングレベルを混銑車上部に設置し
たマイクロ波式レベル計４により検出し、このマイクロ
波式レベル計４の距離出力を警報設定器５に入力し、ス
ラグのフォーミングレベルがある基準点に達した時、こ
の警報設定器５より接点出力を出し、傾注樋設定器６に
入力する。The forming level of this slag is detected by the microwave type level meter 4 installed on the upper part of the hot metal car, and the distance output of this microwave type level meter 4 is input to the alarm setting device 5 to set the slag forming level as a reference point. When it reaches, contact output is output from the alarm setting device 5 and input to the tilting gutter setting device 6.
また、この時、副線に配車された他方の混銑車７の湯面
レベルを他方の混銑車７上に設置されたマイクロ波式レ
ベル計８により監視し、この距離出力を微分演算器９に
入力し、溶銑の湯面上昇速度を求め、この信号も傾注樋
設定器６内で、先の一方の混銑車３のスラグフォーミン
グレベルがある基準点に達したという信号、他方の混銑
車７の湯面上昇速度Ｖ＝ｄＬ／ｄｔ≒０という信号（更
に、警報設定器５の出力で他方の混銑車７の湯面レベル
が目標レベルに達していないという条件）などのＡＮＤ
条件により、これらの信号が入力すると、傾注樋設定器
６より傾注樋動作用モータ１０へ接点出力を送り、傾注
樋２を主線の一方の混銑車３から副線の他方の混銑車７
に切換える。Further, at this time, the level of the molten metal of the other mixed piggy car 7 assigned to the sub line is monitored by the microwave level meter 8 installed on the other mixed piggy car 7, and the distance output is supplied to the differential calculator 9. It is input to find the rising speed of the hot metal surface, and this signal is also sent in the tilting gutter setting device 6 to the signal that the slag foaming level of one of the preceding mixed piggy wheels 3 has reached a certain reference point, and that of the other mixed piggy wheel 7 AND such as a signal that the level of molten metal rising V = dL / dt≈0 (further, the condition that the level of molten metal of the other mixed piggy car 7 has not reached the target level by the output of the alarm setting device 5)
Depending on the conditions, when these signals are input, contact output is sent from the tilting gutter setting device 6 to the motor 10 for tilting gutter operation, and the tilting gutter 2 is moved from one of the main crossrail cars 3 of the main line to the other mixed crossroad car 7 of the sub line.
Switch to.
その後、一方の混銑車３においてスラグのフォーミング
レベルがある基準点以下に低下しおさまったという信号
及び一方の混銑車３の湯面レベルが目標レベルに達して
いないという条件のときには、再び傾注樋を一方の混銑
車３に切換え受銑を継続するようにすることもできる。After that, when there is a signal that the forming level of the slag has fallen below a certain reference point in one of the mixed piggy cars 3 and the condition that the level of the molten metal of one of the mixed piggy cars 3 has not reached the target level, the tilting trough is restarted. It is also possible to switch to one of the mixed piggy cars 3 and continue receiving pig iron.
このように一方の混銑車３の湯面レベルが目標レベルに
達したならば、受銑の主を他方の混銑車７におき受銑を
開始する。In this way, when the level of the molten metal surface of one of the mixed piggy cars 3 has reached the target level, the main pig iron receiver is set to the other mixed piggy car 7 to start receiving pig iron.
このように交互に混銑車への受銑切換えを行なうことに
よってスラグ、溶銑の吐出なしに所定の受銑レベルを得
ることができる。By alternately switching the hot metal to the hot metal truck in this manner, a predetermined hot metal level can be obtained without discharging slag and hot metal.
第３図は以上の経過を示すマイクロ波レベル計の記録の
一例を示すグラフであって、時間ｔ０から一方の受銑車
に受銑を開始し、受銑レベルがＬ１に達した時間ｔ１に
傾注樋を切換え他方の受銑車に受銑を開始した。一方の
受銑車内のレベルがＬ２に安定した時間ｔ２に傾注樋を
切換え、再び一方の受銑車に受銑し、受銑レベルがＬ１
に達した時間ｔ３に傾注樋を切換え、再び他方の受銑車
に受銑を開始した。他方の受銑車内の受銑レベルがＬ１
に達した時間ｔ４に傾注樋を切換え、新たに配車された
受銑車に受銑を開始した。FIG. 3 is a graph showing an example of the record of the microwave level meter showing the above-mentioned progress, which is a time when the piggyer is started on one of the piggyers at time t 0 and the piggyer level reaches L 1. The tilting trough was switched to t 1 and the piggyer was started on the other piggyer car. At the time t 2 when the level in the one piggyer became stable to L 2 , the tilting trough was switched, and the piggyer was picked up again by one piggyer, and the piggyer level was L 1
A devoted gutter to time t 3 has been reached in switching, began again受銑to the other受銑car. The receiving level in the other receiving vehicle is L 1
A devoted gutter to time t 4 has been reached in switching, began受銑to the newly dispatch has been受銑car.
なお、図中曲線Ｉは一方の受銑車、IIは他方の受銑車、
IIIは新しく加えた受銑車のそれぞれの受銑レベル変化
を示す。In the figure, curve I is one piggyer wheel, II is the other piggy wheel,
III shows the changes in the respective receiving levels of the newly added receiving vehicles.
但し、この時、一方の混銑車のスラグフォーミングレベ
ルが基準点に達したにも拘らず、他方の混銑車の湯面上
昇速度 Ｖ＝ｄＬ／ｄｔ≒０ に達していないときは傾注樋を水平に保ち、混銑車への
受銑を一時中止し、他方の混銑車の湯面上昇速度Ｖ＝ｄ
Ｌ／ｄｔ≒０になり次第受銑を再開する。However, at this time, if the slag foaming level of one of the mixed piggy cars has reached the reference point, but the molten metal rising speed of the other mixed piggy car has not reached V = dL / dt≈0, the tilting gutter is leveled. , The suspension of the hot metal to the hot metal is temporarily stopped, and the molten metal rising speed V = d of the other hot metal is temporarily stopped.
As soon as L / dt≈0, the pig iron is restarted.
＜発明の効果＞ 以上詳しく説明したように、本発明は混銑車内のスラグ
のフォーミングレベルをマイクロ波レベル計で検出しな
がら交互に注銑する混銑車の受銑方法である。<Effects of the Invention> As described in detail above, the present invention is a method of receiving pig iron of a mixed pig iron, which alternately pours while detecting a forming level of slag in the pig iron car with a microwave level meter.
このため、鋳床脱珪時のスラグフォーミングのときでも
受銑レベルを確実に監視でき、混銑車の受銑管理が可能
となり、切換え遅れによる炉口から溢流等の事故が無く
なり、受銑量のバラツキが減少する。このため、溶銑そ
の他の原単位向上の他、混銑車輸送原単位および混銑車
補修原単位も向上し、その効果は極めて大である。Therefore, the pig iron level can be reliably monitored even during slag foaming during cast bed desiliconization, and pig iron control of mixed pig iron is possible, and accidents such as overflow from the furnace port due to delay in switching are eliminated, and the amount of pig iron received Variation is reduced. For this reason, in addition to the improvement in the basic unit of hot metal and other components, the basic unit for transporting hot metal and the basic unit for repairing hot metal are also improved.
第１図は本発明方法を実施する装置の一例を示す説明
図、第２図はマイクロ波式レベル計が記録したスラグフ
ォーミングレベル現象を示すグラフ、第３図は本発明方
法によって受銑管理を実施した場合の混銑車内の受銑レ
ベルの変化を示すグラフである。 符号１……出銑樋 ２……傾注樋 ３……混銑車（Ａ） ４……マイクロ波式レベル計（Ａ） ５……警報設定器 ６……傾注樋設定器 ７……混銑車（Ｂ） ８……マイクロ波式レベル計（Ｂ） ９……微分演算器 １０……傾注樋動作用モータ １１……脱珪剤打込みランス １２……鋳床FIG. 1 is an explanatory view showing an example of an apparatus for carrying out the method of the present invention, FIG. 2 is a graph showing a slag forming level phenomenon recorded by a microwave type level meter, and FIG. It is a graph which shows the change of the pig-iron level in the hot metal car when it carries out. Numeral 1 ... Outlet gutter 2 ... Landing gutter 3 ... Morning tow car (A) 4 ... Microwave level meter (A) 5 ... Alarm setting device 6 ... Landing gutter setting device 7 ... Morning tow car ( B) 8 ... Microwave level meter (B) 9 ... Differential calculator 10 ... Motor for tilting gutter operation 11 ... Desiliconizer driving lance 12 ... Casting floor
Claims (1)
ておき、混銑車内のスラグのフォーミングレベルをマイ
クロ波レベル計で検出しながら、一方の混銑車に注銑す
るときに、一方の混銑車内のスラグのフォーミングレベ
ルがある基準点に達しかつ他方の混銑車内の溶銑の湯面
レベルの上昇速度が零であるときには、信号により、傾
注樋を動作させて他方の混銑車に注入方向を切換える一
方、一方の混銑車内のスラグのフォーミングレベルがあ
る基準点以下におさまったときには、再び、傾注樋を作
動させて、一方の混銑車に注入方向を切換え、この傾注
樋の交互切換えを行ないつつ、一方の混銑車内の受銑レ
ベルが予定レベルに達するまで受銑することを特徴とす
る鋳床脱珪時の混銑車の溶銑受銑方法。1. When pouring on one of the tow cars while detecting the forming level of the slag inside the tow car with a microwave level meter while keeping two tow cars on standby at both ends of the tilt gutter, When the slag forming level in one of the hot metal cars reaches a certain reference point and the rising speed of the molten metal level of the hot metal in the other hot metal car is zero, the signal is used to operate the tilting trough and inject it into the other hot metal car. On the other hand, when the slag forming level in one of the tow trucks falls below a certain reference point, the tilting trough is activated again, the pouring direction is switched to one of the torch trucks, and the alternate switching of the tilting troughs is performed. A hot metal receiving method for a hot metal wheel at the time of desiliconization of a cast bed, characterized in that the hot metal level in one of the hot metal vehicles is received until the hot metal level reaches a predetermined level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60117460A JPH0639610B2 (en) | 1985-05-29 | 1985-05-29 | Hot Metal Receiving Method for Hot Metals during Desiliconization of Cast Floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60117460A JPH0639610B2 (en) | 1985-05-29 | 1985-05-29 | Hot Metal Receiving Method for Hot Metals during Desiliconization of Cast Floor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61272306A JPS61272306A (en) | 1986-12-02 |
| JPH0639610B2 true JPH0639610B2 (en) | 1994-05-25 |
Family
ID=14712222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60117460A Expired - Fee Related JPH0639610B2 (en) | 1985-05-29 | 1985-05-29 | Hot Metal Receiving Method for Hot Metals during Desiliconization of Cast Floor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0639610B2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6026113Y2 (en) * | 1982-05-14 | 1985-08-06 | 川崎製鉄株式会社 | Blast furnace tilting gutter switching control device |
-
1985
- 1985-05-29 JP JP60117460A patent/JPH0639610B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61272306A (en) | 1986-12-02 |
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