JPH03281059A - Method for holding molten metal surface in pressurizing type temperature holding ladle - Google Patents
Method for holding molten metal surface in pressurizing type temperature holding ladleInfo
- Publication number
- JPH03281059A JPH03281059A JP8033890A JP8033890A JPH03281059A JP H03281059 A JPH03281059 A JP H03281059A JP 8033890 A JP8033890 A JP 8033890A JP 8033890 A JP8033890 A JP 8033890A JP H03281059 A JPH03281059 A JP H03281059A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- hot water
- water level
- metal surface
- set range
- 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 54
- 238000000034 method Methods 0.000 title claims description 13
- 239000011261 inert gas Substances 0.000 claims abstract description 24
- 230000005856 abnormality Effects 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 93
- 238000001514 detection method Methods 0.000 claims description 29
- 230000007257 malfunction Effects 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 2
- 238000007599 discharging Methods 0.000 abstract 2
- 238000009749 continuous casting Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 3
- 238000010079 rubber tapping Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Landscapes
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、上向き連鋳法、下向き連鋳法または水平連鋳
法に使用される加圧式保温取鍋の湯面保持方法に関する
。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for maintaining the hot water level in a pressurized heat-insulating ladle used in an upward continuous casting method, a downward continuous casting method, or a horizontal continuous casting method.
従来の技術
一般に、この種の加圧式ｃｉＡ温取鍋においては、溶湯
の出湯量を一定にしたり、溶湯量が変化する中で湯面を
一定レベルに保持する必要がある。そのため、従来の加
圧式保温取鍋においては、第３図に示すように、上面に
受湯口１、加圧口２および出湯口３を備え、不活性ガス
供給口４を有するＮ５により加圧口２の上面を密閉し、
出湯口３に湯面検出子Ｐ′１６を設け、底部にインダク
ター等の加熱手段７を設けており、受湯口１から供給し
た溶湯８の加圧口２おける湯面を、不活性ガス供給口４
から加圧口２に圧送したＮ２等の不活性ガス９により加
圧して、出湯口３における湯面■、を制御し、湯面検出
手段６により湯面りを検出し、検出した湯面しに応じて
不活性ガス９の加圧力を加減することにより湯面りを一
定の設定範囲内に保持し、加熱手段７により溶湯８を加
熱して保温していた。前記湯面検出手段６は、長中短３
種類の電極棒１０，１１．１２のそれぞれに電源１３、
表示ランプＡおよび表示ランプＢを接続してなるもので
、第４図に示すように作動する。すなわち、第４図（ａ
）において、Ｓは、制御しようとする湯面りの設定範囲
で、中短両電極棒１１．１２の先端間の距離に相当する
。湯面Ｉ、が設定範囲Ｓ内にあるときは、表示ランプＡ
が通電して点燈し、湯面りが正常であることを表示する
。溶湯８の量が減少し、湯面Ｉ−が第４図（ｂ）に示す
ように設定範囲Ｓ以下になると表示ランプＡが消燈し、
不活性ガス９を増圧する。この増圧により湯面りが上昇
し、第４図（Ｃ）に示すように設定範囲Ｓ以上になると
画表示ランプＡ、Ｂが点燈する０表示ラングＢの点燈に
より不活性ガス９の増圧を停止して減圧する。減圧によ
り湯面しは下降し、第４図（ｄ）に示すように設定範囲
Ｓ内に入ると表示ランプＢが消燈する。BACKGROUND OF THE INVENTION In general, in this type of pressurized ciA hot ladle, it is necessary to keep the amount of molten metal discharged constant, and to maintain the molten metal level at a constant level while the amount of molten metal changes. Therefore, as shown in Fig. 3, the conventional pressurized heat-retaining ladle is equipped with an inlet port 1, a pressurizing port 2, and a tapping port 3 on the top surface, and the pressurizing port is connected to the N5 having an inert gas supply port 4. Seal the top of 2,
A hot water level detector P'16 is provided at the outlet 3, and a heating means 7 such as an inductor is provided at the bottom. 4
The hot water level at the outlet 3 is controlled by pressurizing with an inert gas 9 such as N2, which is forced into the pressurizing port 2, and the hot water level is detected by the hot water level detection means 6, and the detected hot water level is The level of the molten metal was maintained within a fixed range by adjusting the pressurizing force of the inert gas 9 according to the temperature, and the molten metal 8 was heated by the heating means 7 to keep it warm. The hot water level detection means 6 has long, medium and short 3
A power source 13 for each of the types of electrode rods 10, 11, and 12,
It is constructed by connecting indicator lamp A and indicator lamp B, and operates as shown in FIG. 4. That is, Fig. 4 (a
), S is the setting range of the hot water level to be controlled, and corresponds to the distance between the tips of both medium and short electrode rods 11 and 12. When the hot water level I is within the setting range S, the indicator lamp A
turns on and lights up, indicating that the water level is normal. When the amount of molten metal 8 decreases and the molten metal level I- falls below the set range S as shown in FIG. 4(b), the indicator lamp A goes out.
Increase the pressure of the inert gas 9. This pressure increase causes the water level to rise, and as shown in Fig. 4 (C), when it exceeds the set range S, the screen display lamps A and B turn on, and the 0 display rung B lights up, causing the inert gas 9 to turn on. Stop increasing pressure and reduce pressure. Due to the pressure reduction, the hot water level falls, and when it falls within the setting range S as shown in FIG. 4(d), the indicator lamp B goes out.
表示ランプＢの消燈により不活性ガス９の減圧を停止す
る０表示ランプＡは、点燈を続け、湯面しが正常になっ
たことを表示する。このようにして、湯面検出手段６は
、湯面りを設定範囲Ｓ内に保持するのである。The 0 indicator lamp A, which stops the depressurization of the inert gas 9 by turning off the indicator lamp B, continues to be lit to indicate that the water level has become normal. In this way, the hot water level detection means 6 maintains the hot water level within the set range S.
ちなみに、第５図は上向き連鋳用加圧式保温取鍋を示し
ている。この場合は、出湯口３に水冷鋳型１４を挿入し
、湯面検出手１−１６により湯面りを一定の設定範囲内
に保持しつつ、パイプ等の鋳造材１５を上向きに連続鋳
造し、ピンチローラ１６により鋳造材１５を引き上げて
いる。Incidentally, FIG. 5 shows a pressurized heat-retaining ladle for upward continuous casting. In this case, the water-cooled mold 14 is inserted into the tap hole 3, and the casting material 15 such as a pipe is continuously cast upward while the hot water level is maintained within a certain set range by the hot water level detection device 1-16. The cast material 15 is pulled up by pinch rollers 16.
発明が解決しようとする課趙
しかし、上記従来の構成においては、湯面検出手段６が
誤動作して湯面りが設定範囲Ｓから逸脱した場合には、
それを補正する手段がないために、湯面りを設定範囲Ｓ
内に保持することができないという間組があった。たと
えば、中電極棒１１の先端に湯面上のノロが付着すると
、湯面りが設定範囲Ｓ以下に下降しても中電極棒１１は
通電状態にあって表示ランプＡが点燈し、湯面しは下降
し続け、湯面りを設定範囲Ｓにもどすことができないの
である。Problems to be Solved by the Invention However, in the above conventional configuration, if the hot water level detecting means 6 malfunctions and the hot water level deviates from the set range S,
Since there is no way to correct this, the hot water level is set within the range S.
There was a pause that it could not be held within. For example, if slag on the hot water surface adheres to the tip of the middle electrode rod 11, even if the hot water level falls below the set range S, the middle electrode rod 11 remains energized and the indicator lamp A lights up, causing the hot water to turn on. The surface continues to fall, making it impossible to return the hot water level to the set range S.
本発明は、従来の湯面保持方法を改良して、このような
問題点を解消することを目的とする。The present invention aims to solve these problems by improving the conventional method of maintaining the hot water level.
課肋を解決するための手段
上記目的を達成するために、本発明の加圧式保温取鍋の
湯面保持方法は、上面に受湯口、加圧口および出湯口を
有する加圧式保温取鍋において、受湯口から供給した溶
湯の重量を計量手段により計量し、加圧口における湯面
を不活性ガスにより加圧して出湯口における湯面を制御
し、出湯口に設けた湯面検出手段により出湯口における
湯面を検°出し、検出した湯面に応じて前記不活性ガス
の加圧力を加減することにより湯面を一定の設定範囲内
に保持し、湯面検出手段の誤動作により出湯口における
湯面が設定範囲から逸脱する異常が発生したとき、湯面
検出手段に接続した補正手段により前記溶湯重量と不活
性ガスの加圧力との関係から前記異常を検出し、湯面検
出手段を正常に作動させて湯面を設定範囲内に補正する
構成としたものである。Means for Solving the Problems In order to achieve the above object, the method for maintaining the hot water level in a pressurized heat-insulating ladle of the present invention provides a method for maintaining the hot water level in a pressurized heat-insulating ladle, which has a hot water inlet, a pressurizing port, and a tap outlet on the upper surface. , the weight of the molten metal supplied from the receiving port is measured by a measuring means, the molten metal level at the pressurizing port is pressurized with an inert gas to control the molten metal level at the tapping port, and the molten metal is discharged by a molten metal level detecting means provided at the tap. The hot water level at the sprue is detected and the pressurizing force of the inert gas is adjusted according to the detected hot water level to maintain the hot water level within a certain set range. When an abnormality occurs in which the hot water level deviates from the set range, the correction means connected to the hot water level detection means detects the abnormality based on the relationship between the weight of the molten metal and the pressurizing force of the inert gas, and the hot water level detection means is normalized. The system is configured to operate to correct the hot water level within a set range.
作用
上記構成において、湯面を一定に保持しているときは、
溶湯重量と不活性ガスの加圧力との間には一定の反比例
関係が成立している。したがって、実際の湯面が設定範
囲から逸脱したときは、前記反比例関係は湯面が正常な
ときの反比例関係からずれて成立する。補正手段は、こ
の反比例関係のずれから湯面検出手段の異常を検出し、
湯面検出手段を正常に作動させて湯面を設定範囲内に補
正するのである。Effect In the above configuration, when the hot water level is kept constant,
A certain inverse proportional relationship exists between the weight of the molten metal and the pressurizing force of the inert gas. Therefore, when the actual hot water level deviates from the set range, the inversely proportional relationship is established deviating from the inversely proportional relationship when the hot water level is normal. The correction means detects an abnormality in the hot water level detection means from the deviation of this inversely proportional relationship,
The hot water level detection means is operated normally to correct the hot water level within the set range.
実繕例
以下、本発明の一実施例を第１図および第２図に基づい
て説明する。Practical Repair Example An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.
本実緒例における加圧式保温取鍋は、第１図に示すよう
に、上面に受湯口２１、加圧口２２および出湯口２３を
備え、不活性ガス供給口２４を有する１１２５により加
圧口２２の上面を密閉し、出湯口２３に湯面検出手段２
６を設け、底部にインダクター等の加熱手段２７を設け
てなるもので、計量手段２８を介して据付は面２９上に
据え付けられ、湯面検出手段２６と計量手段２８との間
に補正手段３０が接続されている。As shown in FIG. 1, the pressurized heat-retaining ladle in this practical example is equipped with an inlet 21, a pressurizing port 22, and a tapping port 23 on the top surface, and the pressurizing port 22 is connected to a 1125 having an inert gas supply port 24. The top surface of the hot water level detection means 2 is sealed, and the hot water level detection means 2
6, and a heating means 27 such as an inductor is provided at the bottom.It is installed on a surface 29 via a measuring means 28, and a correction means 30 is provided between the hot water level detecting means 26 and the measuring means 28. is connected.
湯面検出手段２６は、既述の従来の湯面検出手段６に相
当するもので、長中短３種類のｔ掻棒３１゜３２ 、３
３のそれぞれに電源３４、表示ランプＡおよび表示ラン
プＢを接続してなり、湯面検出手段６と同様に第４図に
示すように作動する。The hot water level detecting means 26 corresponds to the conventional hot water level detecting means 6 described above, and has three kinds of long, medium and short T scrapers 31, 32, 3.
3 are connected to a power source 34, an indicator lamp A, and an indicator lamp B, respectively, and operate as shown in FIG. 4 in the same way as the hot water level detecting means 6.
計量手段２８は、溶湯重量を計量するためのもので、複
数個のロードセルからなっている。The measuring means 28 is for measuring the weight of the molten metal and is composed of a plurality of load cells.
補正手段３０は、湯面検出手段２６の誤動作による異常
を補正するためのもので、コントローラ３５に電極棒通
電制御装置３６、重量演算装Ｍ３７および几力計３８を
接続してなり、を掻棒通電制御装置３６が湯面検出手段
２６に接続されるとともに、重量演算装置３７が計量手
段２８に接続されている。The correction means 30 is for correcting an abnormality caused by a malfunction of the hot water level detection means 26, and consists of a controller 35 connected to an electrode rod energization control device 36, a weight calculation device M37, and a force meter 38. The energization control device 36 is connected to the hot water level detection means 26, and the weight calculation device 37 is connected to the measuring means 28.
上記構成の加圧式保温取鍋において、受湯口２１から供
給した溶湯３９の重量を計量手段２８により計量し、そ
の信号を重量演算装置３７に送る。ｍ方、加圧口２２で
は、不活性ガス供給口２４から加圧口２２に圧送したＮ
２等の不活性ガス４０により溶湯３９の湯面を加圧して
、出湯口２３における湯面りを制御する。出湯口２３に
おいて、湯面検出手段２６により湯面りを検出し、検出
した湯面しに応じて不活性ガス４０の加圧力を加減する
ことにより湯面りを一定の設定範囲Ｓ（第４図参照）内
に保持し、加熱手段２７により溶湯３９を加熱して保温
する。その際、湯面検出手段２６は第４図に示すように
作動する。In the pressurized heat-retaining ladle configured as described above, the weight of the molten metal 39 supplied from the receiving port 21 is measured by the measuring means 28, and a signal thereof is sent to the weight calculation device 37. On the m side, at the pressurizing port 22, N is fed under pressure from the inert gas supply port 24 to the pressurizing port 22.
The level of the molten metal 39 is pressurized by the second inert gas 40 to control the level of the molten metal at the outlet 23. At the outlet 23, the hot water level is detected by the hot water level detection means 26, and the hot water level is adjusted to a certain setting range S (fourth (see figure), and the heating means 27 heats the molten metal 39 to keep it warm. At this time, the hot water level detection means 26 operates as shown in FIG.
すなわち、第４図（ａ）において、Ｓは、制御しようと
する湯面りの設定範囲で、中短両電極棒３２゜３３の先
端間の距離に相当する。湯面りが設定範囲Ｓ内にあると
きは、表示ランプＡが通電して点燈し、湯面■、が正常
であることを表示する。溶湯３９の量が減少し、湯面り
が第４図（ｂ）に示すように設定範囲Ｓ以下になると表
示ランプＡが消燈し、不活性ガス４０を増圧する。この
増圧により湯面りが上昇し、第４図（Ｃ）に示すように
設定範囲Ｓ以上になると画表示ランプＡ、Ｂが点燈する
０表示ランプＢの点燈により不活性ガス４０の増扛を停
止して減圧する。減圧により湯面しは下降し、第４図（
ｄ）に示すように設定範囲Ｓ内に入ると表示ランプＢが
消燈する０表示ランプＢの消燈により不活性ガス４０の
減圧を停止する０表示ランプＡは、点燈を続け、湯面り
が正常になったことを表示する。上記の間、長電極棒３
１と中短電極棒３２．３３との間の接続・遮断は電極棒
通電制御装置３６が行なっている。かくして、湯面検出
手段２６は、湯面りを設定範囲Ｓ内に保持するのである
。そして、湯面りが設定範囲Ｓ内のある一定位置に保持
されているときは、重量演算装置３７が計量手Ｖ１２８
からの信号を受けて演算した溶湯重量と圧力計３８が検
出した不活性ガス４０の加圧力との間には、第２図中の
直線Ｗに示すように反比例関係が成立している。That is, in FIG. 4(a), S is the set range of the hot water level to be controlled, and corresponds to the distance between the tips of the short and medium electrode rods 32 and 33. When the hot water level is within the set range S, the indicator lamp A is energized and lights up, indicating that the hot water level (■) is normal. When the amount of the molten metal 39 decreases and the level of the molten metal falls below the set range S as shown in FIG. 4(b), the indicator lamp A goes out and the pressure of the inert gas 40 is increased. This pressure increase causes the water level to rise, and as shown in Fig. 4 (C), when the level exceeds the set range S, the display lamps A and B turn on. Stop the increase in pressure and reduce the pressure. Due to the reduced pressure, the water level drops, and as shown in Figure 4 (
As shown in d), when the setting range S is exceeded, the indicator lamp B turns off. When the 0 indicator lamp B turns off, the depressurization of the inert gas 40 is stopped. The 0 indicator lamp A continues to be lit, and the hot water level Displays that the status is normal. During the above period, the long electrode rod 3
1 and the short and medium electrode rods 32 and 33 are connected and disconnected by the electrode rod energization control device 36. In this way, the hot water level detection means 26 maintains the hot water level within the set range S. Then, when the hot water level is maintained at a certain position within the set range S, the weight calculation device 37
There is an inverse proportional relationship between the weight of the molten metal calculated in response to a signal from the molten metal and the pressurizing force of the inert gas 40 detected by the pressure gauge 38, as shown by the straight line W in FIG.
そして、湯面検出手￥１２６の誤動作により、実際の湯
面りが一定位置より下降すると直線Ｗが下側の範囲Ｍに
移動し、湯面りが一定位置より上昇すると直線Ｗが上側
の範囲Ｎに移動する。コントローラ３５は、直線Ｗの移
動から湯面りの異常を検出する。直線Ｗが範囲Ｍに移動
したときは、本来ならば第４図（ｂ）に該当するので表
示ランプＡが消燈する筈であるが、湯面検出手段２６の
誤動作により表示ランプＡが消燈しないときは、コント
ローラ３５は、強制的に表示ランプＡを消燈するととも
に、不活性ガス４０を増圧して湯面りを上昇させる。Due to a malfunction of the hot water level detection hand ¥126, when the actual hot water level falls below a certain position, the straight line W moves to the lower range M, and when the hot water level rises from the certain position, the straight line W moves to the upper range. Move to N. The controller 35 detects an abnormality in the hot water level from the movement of the straight line W. Normally, when the straight line W moves to the range M, the indicator lamp A should turn off because it corresponds to Fig. 4(b), but the indicator lamp A turns off due to a malfunction of the hot water level detection means 26. If not, the controller 35 forcibly turns off the indicator lamp A and increases the pressure of the inert gas 40 to raise the level of the hot water.
逆に、直線Ｗが範囲Ｎに移動したときは、第４図（Ｃ）
に該当するので表示ランプＢが点燈する筈であるが、湯
面検出手段２６の誤動作により表示ランプＢが点燈しな
いときは、コントローラ３５は強制的に表示ランプＢを
点燈するとともに、不活性ガス４０を減圧して湯面りを
下降させる。このようにして、補正手段３０は、湯面検
出手段２６の誤動作による湯面Ｌ７の異常を検出し、湯
面検出手段２Ｇを正常に作動させて湯面りを設定範囲Ｓ
内に補正するのである。Conversely, when the straight line W moves to the range N, Fig. 4(C)
However, if the indicator lamp B does not turn on due to a malfunction of the hot water level detection means 26, the controller 35 forcibly turns on the indicator lamp B and turns it off. The active gas 40 is depressurized to lower the hot water level. In this way, the correction means 30 detects an abnormality in the hot water level L7 due to malfunction of the hot water level detection means 26, and operates the hot water level detection means 2G normally to adjust the hot water level to the set range S.
It is corrected within.
本実施例の方法は、上記のように湯面りを確実に設定範
囲Ｓ内に保持するので、上向き連鋳法（第５図参照）、
下向き連鋳法および水平連鋳法に使用される加圧式保温
取鍋の湯面保持に好適に利用することができる。The method of this embodiment reliably maintains the level of the molten metal within the set range S as described above, so the upward continuous casting method (see Fig. 5),
It can be suitably used for maintaining the hot water level in a pressurized heat-insulating ladle used in the downward continuous casting method and the horizontal continuous casting method.
なお、溶湯３９が減少する場合にのみ対応ずればよいと
きは、短電極棒３３および表示ランプＢを省略すればよ
い。また、電極棒の先端に湯面上のノロが付着して異常
の原因となったときは、不活性ガス４０を吹き付けてノ
ロを除去することが好ましい
発明の効果
以上述べたように本発明によれば、湯面検出手段により
出湯口における溶湯の湯面を一定の設定範囲内に保持す
ることができるのみならず、湯面検出手段の誤動作によ
り湯面が設定範囲から逸脱する異常が発生しても、補正
手段がその異常を検出して湯面検出手段を正常に作動さ
せ、湯面を設定範囲内に補正する。したがって、湯面を
確実に設定範囲内に保持できるようになった。Note that if it is necessary to make a change only when the molten metal 39 decreases, the short electrode rod 33 and the indicator lamp B may be omitted. In addition, when slag on the hot water surface adheres to the tip of the electrode rod and causes an abnormality, it is preferable to remove the slag by blowing inert gas 40. As described above, the present invention has the following advantages: According to the above, not only can the molten metal level at the outlet be maintained within a certain set range by the molten metal level detection means, but also an abnormality in which the molten metal level deviates from the set range due to malfunction of the molten metal level detection means can be prevented. Even if the hot water level is exceeded, the correction means detects the abnormality and operates the hot water level detection means normally to correct the hot water level to within the set range. Therefore, it has become possible to reliably maintain the hot water level within the set range.
第１図は本発明の方法の一実施例を説明するための加圧
式保温取鍋の断面図、第２図は溶湯型１と不活性ガスの
加圧力との関係を示すグラフ、第３図は従来の方法の一
例を説明するための加圧式保温取鍋の断面図、第４図は
加圧式保温取鍋における湯面検出手段の作動原理説明図
、第５図は上向き連鋳用加圧式保温取鍋の断面図である
。
２１・・・受湯口、２２・・・加圧口、２３・・・出湯
口、２６・・・湯面検出手段、２８・・・計量手段、３
０・・・補正手段、３９・・・溶湯、４０・・・不活性
ガス、Ｌ・・・湯面（出湯口）、Ｓ・・・設定範囲（湯
面）。Fig. 1 is a cross-sectional view of a pressurized heat-insulating ladle for explaining an embodiment of the method of the present invention, Fig. 2 is a graph showing the relationship between the molten metal mold 1 and the pressurizing force of inert gas, and Fig. 3 is a cross-sectional view of a pressurized heating ladle to explain an example of a conventional method, Fig. 4 is a diagram explaining the operating principle of the hot water level detection means in a pressurized heating ladle, and Fig. 5 is a pressurized type for upward continuous casting. It is a sectional view of a heat retention ladle. 21... Inlet, 22... Pressurizing port, 23... Outlet, 26... Hot water level detection means, 28... Measuring means, 3
0...Correction means, 39...molten metal, 40...inert gas, L...molten metal level (outlet), S...setting range (molten metal level).
Claims (1)
保温取鍋において、受湯口から供給した溶湯の重量を計
量手段により計量し、加圧口における湯面を不活性ガス
により加圧して出湯口における湯面を制御し、出湯口に
設けた湯面検出手段により出湯口における湯面を検出し
、検出した湯面に応じて前記不活性ガスの加圧力を加減
することにより湯面を一定の設定範囲内に保持し、湯面
検出手段の誤動作により出湯口における湯面が設定範囲
から逸脱する異常が発生したとき、湯面検出手段に接続
した補正手段により前記溶湯重量と不活性ガスの加圧力
との関係から前記異常を検出し、湯面検出手段を正常に
作動させて湯面を設定範囲内に補正することを特徴とす
る加圧式保温取鍋の湯面保持方法。1. In a pressurized heat-insulating ladle that has a receiving port, a pressurizing port, and a tap port on the top surface, the weight of the molten metal supplied from the receiving port is measured by a measuring means, and the molten metal surface at the pressurizing port is pressurized with an inert gas. The hot water level is controlled by controlling the hot water level at the hot water outlet, detecting the hot water level at the hot water outlet using a hot water level detection means provided at the hot water tap, and adjusting the pressurizing force of the inert gas according to the detected hot water level. is maintained within a certain set range, and when an abnormality occurs in which the molten metal level at the outlet deviates from the set range due to a malfunction of the molten metal level detection means, a correction means connected to the molten metal level detection means adjusts the molten metal weight and inertness. A method for maintaining a hot water level in a pressurized heat-insulating ladle, characterized in that the abnormality is detected from the relationship with the pressurized pressure of gas, and the hot water level is corrected to within a set range by normally operating a hot water level detection means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8033890A JPH07121449B2 (en) | 1990-03-28 | 1990-03-28 | How to maintain the hot water level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8033890A JPH07121449B2 (en) | 1990-03-28 | 1990-03-28 | How to maintain the hot water level |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03281059A true JPH03281059A (en) | 1991-12-11 |
| JPH07121449B2 JPH07121449B2 (en) | 1995-12-25 |
Family
ID=13715478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8033890A Expired - Fee Related JPH07121449B2 (en) | 1990-03-28 | 1990-03-28 | How to maintain the hot water level |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07121449B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017080801A (en) * | 2015-10-22 | 2017-05-18 | 株式会社豊栄商会 | Production method of ingot and control device |
-
1990
- 1990-03-28 JP JP8033890A patent/JPH07121449B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017080801A (en) * | 2015-10-22 | 2017-05-18 | 株式会社豊栄商会 | Production method of ingot and control device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07121449B2 (en) | 1995-12-25 |
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