JPH0638393Y2 - Molten metal container leak detection device - Google Patents
Molten metal container leak detection deviceInfo
- Publication number
- JPH0638393Y2 JPH0638393Y2 JP13716987U JP13716987U JPH0638393Y2 JP H0638393 Y2 JPH0638393 Y2 JP H0638393Y2 JP 13716987 U JP13716987 U JP 13716987U JP 13716987 U JP13716987 U JP 13716987U JP H0638393 Y2 JPH0638393 Y2 JP H0638393Y2
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- detection device
- leak detection
- electrode terminal
- metal container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- General Induction Heating (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、耐火物でライニングされた溶解炉，精錬炉，
取鍋等の誘導加熱機構を備えた溶融金属容器からの湯漏
れを検知する装置に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to a refractory lined melting furnace, refining furnace,
The present invention relates to a device for detecting hot water leak from a molten metal container equipped with an induction heating mechanism such as a ladle.
溶融金属容器からの湯漏れを検知する装置として、第２
図に示すものが特公昭61-37750号公報で紹介されてい
る。As a device for detecting leakage of molten metal from a molten metal container,
The one shown in the figure is introduced in Japanese Examined Patent Publication No. 61-37750.
この検知装置が対象とする溶融金属容器は、耐火物でラ
イニングされた溶融金属容器１の外周に誘導コイル２が
巻かれた形式の炉である。この誘導コイル２は、リアク
トル３及び電圧切換え用スイッチ４を介して、整流素子
５及び可変抵抗器R1からなる低電圧回路、又は整流素子
６及び可変抵抗器R2からなる高電圧回路に接続される。
そして、これらの高電圧回路及び低電圧回路のそれぞれ
に、交流電源７からの電圧を変圧器８の高電圧タップ8a
及び低電圧タップ8bを介して、高電圧及び低電圧として
印加する。The molten metal container targeted by this detection device is a furnace in which an induction coil 2 is wound around the outer periphery of a molten metal container 1 lined with a refractory. This induction coil 2 is connected to a low voltage circuit composed of a rectifying element 5 and a variable resistor R 1 or a high voltage circuit composed of a rectifying element 6 and a variable resistor R 2 via a reactor 3 and a voltage switching switch 4. To be done.
Then, the high-voltage tap 8a of the transformer 8 is supplied with the voltage from the AC power source 7 in each of these high-voltage circuit and low-voltage circuit.
And high voltage and low voltage are applied via the low voltage tap 8b.
他方、溶融金属容器１の炉底には、湯漏れ検知用の電極
端子９が炉内の溶融金属10に接触するように、炉底壁を
貫通して配置されている。この電極端子９は、検出器11
を介して前述の高電圧回路及び低電圧回路のそれぞれに
接続されている。On the other hand, in the furnace bottom of the molten metal container 1, an electrode terminal 9 for detecting molten metal leak is arranged so as to penetrate the furnace bottom wall so as to come into contact with the molten metal 10 in the furnace. This electrode terminal 9 is connected to the detector 11
Is connected to each of the high voltage circuit and the low voltage circuit described above.
常時は電圧切換え用スイッチ４が低電圧回路に接続され
ており、何らかの原因により溶融金属容器１の炉側壁に
クラックが入り、そこに溶融金属10が侵入すると、侵入
した溶融金属と誘導コイル２の距離が接近する。そうす
ると、整流素子５→可変抵抗器R1→リアクトル３→誘導
コイル２→溶融金属10→電極端子９→検出器11の順に電
流が流れ、湯漏れが検出される。また、僅かな湯漏れで
も検出したいときには、電圧切換え用スイッチ４を高電
圧回路に切り換えることにより、整流素子６→可変抵抗
器R2→リアクトル３→誘導コイル２→溶融金属10→電極
端子９→検出器11の順に電流が流れ、湯漏れが検出され
る。このときの電圧をたとえば200Vに設定することによ
って、クラックに侵入した溶融金属と誘導コイル２との
距離が大きな場合でも、検出器11に充分な検出電流を流
すことができる。The voltage changeover switch 4 is normally connected to the low voltage circuit, and when the molten metal 10 intrudes into the furnace side wall of the molten metal container 1 for some reason, the molten metal 10 and the induction coil 2 The distance approaches. Then, a current flows in the order of rectifying element 5 → variable resistor R 1 → reactor 3 → induction coil 2 → molten metal 10 → electrode terminal 9 → detector 11, and a leak of molten metal is detected. Further, when it is desired to detect even a slight leak of hot water, the rectifying element 6 → variable resistor R 2 → reactor 3 → induction coil 2 → molten metal 10 → electrode terminal 9 → An electric current flows in the order of the detector 11, and a leak of hot water is detected. By setting the voltage at this time to, for example, 200 V, a sufficient detection current can be passed through the detector 11 even if the distance between the molten metal that has entered the crack and the induction coil 2 is large.
しかし、この検知装置においては、電極端子９を炉底壁
に埋設しているため、炉体の補修を行う場合の作業が面
倒なものとなる。たとえば、溶損した炉底を補修すると
き、電極端子９を一旦取り外し、溶損個所にライニング
を施した後で、電極端子９を再度埋設することが必要に
なる。また、電極端子９自体を交換するときにも、炉底
壁の一部を取り替えることが必要となる。However, in this detection device, since the electrode terminal 9 is buried in the furnace bottom wall, the work for repairing the furnace body becomes troublesome. For example, when repairing a melted furnace bottom, it is necessary to temporarily remove the electrode terminal 9, line the melted portion, and then bury the electrode terminal 9 again. Also, when the electrode terminal 9 itself is replaced, it is necessary to replace a part of the furnace bottom wall.
そこで、本考案は、溶融金属に接触する側の電極端子を
工夫することによって、炉底壁の補修や電極端子の交換
等の作業を容易にした湯漏れ検知装置を提供することを
目的とする。Therefore, an object of the present invention is to provide a molten metal leak detection device that facilitates operations such as repair of the furnace bottom wall and replacement of electrode terminals by devising an electrode terminal on the side that contacts molten metal. .
本考案の湯漏れ検知装置は、その目的を達成するため、
容器の底部に設けた湯口を閉塞する浸漬ストッパーの外
皮耐火物として導電性耐火物を使用し、該ストッパーを
一方の電極端子とし、前記容器の外周に設けた誘導加熱
コイルに他方の電極端子を取り付け、これら電極端子の
間に湯漏れ検知回路を構成したことを特徴とする。In order to achieve the object, the hot water leak detection device of the present invention is
A conductive refractory is used as the outer refractory of the immersion stopper that closes the sprue provided at the bottom of the container, the stopper is used as one electrode terminal, and the other electrode terminal is connected to the induction heating coil provided on the outer periphery of the container. It is characterized in that a hot water leak detection circuit is formed between these electrode terminals.
以下、図面を参照しながら、実施例により本考案の特徴
を具体的に説明する。Hereinafter, the features of the present invention will be described in detail with reference to the accompanying drawings.
第１図は、本考案実施例の湯漏れ検知装置の要部を示
す。なお、本実施例においては、第２図の検知装置の電
極端子９を浸漬ストッパー13に代え、他の検知回路は第
２図の例と同様にしているので、以下の説明において第
２図で示した符番を適宜使用している。FIG. 1 shows a main part of a hot water leak detection device according to an embodiment of the present invention. In this embodiment, the electrode terminal 9 of the detection device of FIG. 2 is replaced with the immersion stopper 13 and the other detection circuits are the same as those of the example of FIG. The numbers shown are used as appropriate.
本実施例の溶融金属容器１は、第２図と同様に耐火物で
ライニイグされ、その外周に誘導コイル２が巻かれてい
る。そして、溶融金属容器１の底部には、容器内の溶融
金属10を流出させる湯口12が設けられており、この湯口
12を開閉するための浸漬ストッパー13が上下動自在に備
えられている。また、溶融金属容器１の上部に炉蓋14が
取り付けられており、炉内の溶融金属10が外気に接触し
ないようにしている。The molten metal container 1 of this embodiment is lined with a refractory material as in FIG. 2, and an induction coil 2 is wound around the outer circumference thereof. And, at the bottom of the molten metal container 1, there is provided a spout 12 for letting out the molten metal 10 in the container.
An immersion stopper 13 for opening and closing 12 is provided so as to be vertically movable. Further, a furnace lid 14 is attached to the upper part of the molten metal container 1 so that the molten metal 10 in the furnace does not come into contact with the outside air.
ここで、浸漬ストッパー13の外皮耐火物として導電性耐
火物を使用し、浸漬ストッパー13の上端に検出器11（第
２図参照）に至る配線を取り付けている。この導電性耐
火物としては、炭素を含む耐火物、たとえばアルミナ−
グラファイト系の耐火物が使用される。すなわち、第２
図の炉底壁に埋設した電極端子９に代えて、溶融金属容
器１とは独立した部材である浸漬ストッパー13を湯漏れ
検知用の電極端子としている。これによって、その電極
端子の取替え，補修等の作業が炉底の補修から切り離さ
れたものとなる。Here, a conductive refractory material is used as the outer refractory material of the immersion stopper 13, and the wiring leading to the detector 11 (see FIG. 2) is attached to the upper end of the immersion stopper 13. As the conductive refractory, a refractory containing carbon, for example, alumina-
Graphite refractories are used. That is, the second
Instead of the electrode terminal 9 embedded in the furnace bottom wall in the figure, an immersion stopper 13 which is a member independent of the molten metal container 1 is used as an electrode terminal for detecting molten metal leak. As a result, the work of replacing and repairing the electrode terminal is separated from the repair of the furnace bottom.
他方、溶融金属容器１の外周に巻かれた誘導コイル２に
は、第２図と同様にリアクトル３に至る配線が取り付け
られている。On the other hand, the induction coil 2 wound around the outer circumference of the molten metal container 1 is provided with the wiring leading to the reactor 3 as in FIG.
この構成において、溶融金属容器１の炉側壁にクラック
が入り、そこに溶融金属10が侵入して湯漏れが発生した
場合、湯漏れ検出電流は、整流素子５→可変抵抗器R1→
リアクトル３→誘導コイル２→溶融金属10→浸漬ストッ
パー13→検出器11の順に、又は整流素子６→可変抵抗器
R2→リアクトル３→誘導コイル２→溶融金属10→浸漬ス
トッパー13→検出器11の順に流れる。そして、検出器11
によって湯漏れの有無が検知される。In this configuration, cracks are the furnace side wall of the molten metal container 1, if the hot water leakage occurs therein with the molten metal 10 is penetrated, the water leak detection current, the rectifier element 5 → variable resistor R 1 →
Reactor 3 → Induction coil 2 → Molten metal 10 → Immersion stopper 13 → Detector 11 or rectifying element 6 → Variable resistor
R 2 → reactor 3 → induction coil 2 → molten metal 10 → immersion stopper 13 → detector 11 in that order. And detector 11
The presence or absence of hot water leak is detected by.
なお、本考案は、その適用対象が第２図に示したような
高電圧回路及び低電圧回路の両者を備えた湯漏れ検知装
置に限定されるものでないことは勿論である。たとえ
ば、単一の電圧回路を備えた検知装置に対しても、同様
に適用することが可能である。Needless to say, the present invention is not limited to the application to the hot-water leak detection device having both the high-voltage circuit and the low-voltage circuit as shown in FIG. For example, the same can be applied to a detection device having a single voltage circuit.
以上に説明したように、本考案の湯漏れ検知装置におい
ては、溶融金属に接触する側の電極端子として溶融金属
容器とは独立した部材である浸漬ストッパーを使用して
いる。これによって、電極端子の交換，補修等の作業が
炉底壁の補修作業から独立したものとなり、従来のよう
な炉底壁に電極端子が埋設されていることに起因する面
倒な作業を無くすことができる。As described above, in the molten metal leak detection device of the present invention, the immersion stopper, which is a member independent of the molten metal container, is used as the electrode terminal on the side in contact with the molten metal. As a result, the work of replacing and repairing the electrode terminals becomes independent of the work of repairing the bottom wall of the furnace, and eliminates the troublesome work that has been conventionally caused by burying the electrode terminals in the bottom wall of the furnace. You can
第１図は本考案実施例の湯漏れ検知装置の要部を示し、
第２図は従来の湯漏れ検知装置を示す。FIG. 1 shows an essential part of a hot water leak detection device according to an embodiment of the present invention.
FIG. 2 shows a conventional hot water leak detection device.
Claims (1)
トッパーの外皮耐火物として導電性耐火物を使用し、該
ストッパーを一方の電極端子とし、前記容器の外周に設
けた誘導加熱コイルに他方の電極端子を取り付け、これ
ら電極端子の間に湯漏れ検知回路を構成したことを特徴
とする溶融金属容器の湯漏れ検知装置。1. An electrically conductive refractory material is used as the outer refractory material of an immersion stopper for closing a spout provided at the bottom of a container, and the stopper is used as one electrode terminal, and an induction heating coil provided on the outer periphery of the container. A molten metal leak detection device for a molten metal container, characterized in that the other electrode terminal is attached and a molten metal leak detection circuit is configured between these electrode terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13716987U JPH0638393Y2 (en) | 1987-09-07 | 1987-09-07 | Molten metal container leak detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13716987U JPH0638393Y2 (en) | 1987-09-07 | 1987-09-07 | Molten metal container leak detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6441996U JPS6441996U (en) | 1989-03-13 |
| JPH0638393Y2 true JPH0638393Y2 (en) | 1994-10-05 |
Family
ID=31398350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13716987U Expired - Lifetime JPH0638393Y2 (en) | 1987-09-07 | 1987-09-07 | Molten metal container leak detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0638393Y2 (en) |
-
1987
- 1987-09-07 JP JP13716987U patent/JPH0638393Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6441996U (en) | 1989-03-13 |
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