JPS62193942U - - Google Patents
Info
- Publication number
- JPS62193942U JPS62193942U JP8156286U JP8156286U JPS62193942U JP S62193942 U JPS62193942 U JP S62193942U JP 8156286 U JP8156286 U JP 8156286U JP 8156286 U JP8156286 U JP 8156286U JP S62193942 U JPS62193942 U JP S62193942U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- detection coil
- slag
- detection
- molten 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 13
- 239000002893 slag Substances 0.000 claims description 8
- 230000005284 excitation Effects 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Continuous Casting (AREA)
Description
第１図は本考案の一実施例であるスラグ検出装
置を備えた連続鋳造装置の概略を示す断面図であ
る。第２図は第１図の装置に設けられたコイルの
部分断面図である。第３図は第１図の装置のコイ
ルに接続された回路のブロツク線図である。第４
図は第３図における検出信号ＳＫの信号レベルの
変化を示すグラフである。第５図は本考案の他の
実施例におけるコイルの部分断面図である。第６
図は本考案の更に別の実施例におけるコイルの一
部を切り欠いた斜視図である。第７図は本考案の
更に別の実施例におけるコイルの断面図である。
第８図は本考案の更に別の実施例におけるコイル
の斜視図である。第９図は本考案の更に別の実施
例におけるコイルに接続された電気回路図である
。第１０図は本考案の更に別の実施例におけるコ
イルに接続された電気回路図である。第１１図は
本考案の更に別の実施例におけるコイルの部分断
面図である。
１２……溶鋼（溶融金属）、１４：スラグ、１
６：ノズル（通路）、３４：アルミナパイプ（耐
火物）、３６：耐熱線、５６：取付部材（耐火物
）、Ｌ１，Ｌ１′，Ｌ３，Ｌ３′，Ｌ４，Ｌ５，
Ｌ６：コイル（検出コイル）、Ｌ２，Ｌ２′：コ
イル（励磁コイル）。
FIG. 1 is a sectional view schematically showing a continuous casting apparatus equipped with a slag detection device, which is an embodiment of the present invention. FIG. 2 is a partial sectional view of a coil provided in the device of FIG. FIG. 3 is a block diagram of the circuitry connected to the coil of the device of FIG. Fourth
The figure is a graph showing changes in the signal level of the detection signal SK in FIG. 3. FIG. 5 is a partial sectional view of a coil in another embodiment of the present invention. 6th
The figure is a partially cutaway perspective view of a coil in still another embodiment of the present invention. FIG. 7 is a sectional view of a coil in yet another embodiment of the present invention.
FIG. 8 is a perspective view of a coil in yet another embodiment of the present invention. FIG. 9 is an electrical circuit diagram connected to a coil in yet another embodiment of the present invention. FIG. 10 is an electrical circuit diagram connected to a coil in yet another embodiment of the present invention. FIG. 11 is a partial sectional view of a coil in yet another embodiment of the present invention. 12... Molten steel (molten metal), 14: Slag, 1
6: Nozzle (passage), 34: Alumina pipe (refractory), 36: Heat-resistant wire, 56: Mounting member (refractory), L1, L1', L3, L3', L4, L5,
L6: Coil (detection coil), L2, L2': Coil (excitation coil).
Claims (1)
検出コイルを備え、該検出コイルの自己インダク
タンスの変化または該検出コイルに生じる誘導起
電力の変化に基づいて、前記溶融金属に続いてス
ラグが前記通路内に流入したことを検出する装置
において、 前記検出コイルを、耐火物に巻回した耐熱線に
て構成したことを特徴とするスラグ検出装置。 (2) 前記検出コイルは、励磁コイルを挾んで互
いに離間して配置された一対のコイルにて構成さ
れ、該励磁コイルによつて前記溶融金属内に発生
する渦電流に基づいて該一対のコイルにそれぞれ
生じる誘導起電力を差動増幅することにより、前
記スラグが前記通路内に流入したことを検出する
実用新案登録請求の範囲第１項に記載のスラグ検
出装置。 (3) 前記検出コイルは、励磁コイルの外側また
は内側に互いに離間して配置された一対のコイル
にて構成され、該励磁コイルによつて前記溶融金
属内に発生する渦電流に基づいて該一対のコイル
にそれぞれ生じる誘導起電力を差動増幅すること
により、前記スラグが前記通路内に流入したこと
を検出する実用新案登録請求の範囲第１項に記載
のスラグ検出装置。[Claims for Utility Model Registration] (1) A detection coil provided on the outer periphery of a passage for guiding molten metal, and based on a change in self-inductance of the detection coil or a change in induced electromotive force generated in the detection coil. , a device for detecting that slag has flowed into the passageway following the molten metal, wherein the detection coil is constituted by a heat-resistant wire wound around a refractory. (2) The detection coil is composed of a pair of coils placed apart from each other with an excitation coil in between, and the detection coil detects the eddy current generated in the molten metal by the excitation coil. The slag detection device according to claim 1, which detects that the slag has flowed into the passageway by differentially amplifying the induced electromotive force generated in each of the slags. (3) The detection coil is composed of a pair of coils that are placed apart from each other on the outside or inside of the excitation coil, and the detection coil detects the pair of coils based on the eddy current generated in the molten metal by the excitation coil. The slag detection device according to claim 1, which detects that the slag has flowed into the passage by differentially amplifying the induced electromotive force generated in each of the coils.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8156286U JPS62193942U (en) | 1986-05-29 | 1986-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8156286U JPS62193942U (en) | 1986-05-29 | 1986-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62193942U true JPS62193942U (en) | 1987-12-09 |
Family
ID=30933416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8156286U Pending JPS62193942U (en) | 1986-05-29 | 1986-05-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62193942U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0382987A (en) * | 1989-08-26 | 1991-04-08 | Sukegawa Electric Co Ltd | Induction type conductor detector |
-
1986
- 1986-05-29 JP JP8156286U patent/JPS62193942U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0382987A (en) * | 1989-08-26 | 1991-04-08 | Sukegawa Electric Co Ltd | Induction type conductor detector |
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