JPS59170995U - Arc furnace current setting device - Google Patents
Arc furnace current setting deviceInfo
- Publication number
- JPS59170995U JPS59170995U JP1983066122U JP6612283U JPS59170995U JP S59170995 U JPS59170995 U JP S59170995U JP 1983066122 U JP1983066122 U JP 1983066122U JP 6612283 U JP6612283 U JP 6612283U JP S59170995 U JPS59170995 U JP S59170995U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- current
- electrode rod
- magnitude
- average value
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Furnace Details (AREA)
- Discharge Heating (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の一実施例を含むアーク炉の構成を説明
する図である。第２図は本考案の他の実施例を含む第１
図に相当する図である。第３図は第２図の作動を説明す
るフローチャートである。
１０：アーク炉、１２：電極棒、２６：トランス（電圧
検出手段）、２８：比較器（電極棒制御手段）、３８：
電極棒駆動回路（電極棒制御手段）、３０：変流器（電
流検出手段）、４２：平均演算器 ′（信号平均手
段）、４４ニゲイン可変増巾器（信号補正手段）、４６
：比較器（比較手段）、４８：設定器（設定手段）。FIG. 1 is a diagram illustrating the configuration of an arc furnace including an embodiment of the present invention. FIG. 2 is a first diagram containing another embodiment of the present invention.
FIG. FIG. 3 is a flowchart illustrating the operation of FIG. 2. 10: Arc furnace, 12: Electrode rod, 26: Transformer (voltage detection means), 28: Comparator (electrode rod control means), 38:
Electrode rod drive circuit (electrode rod control means), 30: Current transformer (current detection means), 42: Average calculator' (signal averaging means), 44 Two-gain variable amplifier (signal correction means), 46
: Comparator (comparison means), 48: Setter (setting means).
Claims (1)
解物を溶解させる電極棒と、該電極棒に電流を供給する
電源の電圧を検出し、該電圧の大きさを表す第１信号を
出力する電圧検出手段と、該電極棒に流される電流を検
出し、該電流の大きさを表す第２信号を出力する電流検
出手段と、前記第１信号および第２信号の大きさを比較
して、前記電極棒の位置を制御する電極棒制御手段とを
備えたアーク炉において、前記電極棒に流される電流を
設定するアーク炉電流設定装置であって、前記電極棒に
流すべき電流値の大きさを設定する設定手段と、 前記電流検出手段と電極棒制御手段との間に介挿され、
該電流検出手段から電極棒制御手段に供給される前記第
２信号の大きさを補正する信号補正手段と、 前記第２信号の所定時間内の平均値を逐次求める信号平
均手段と、 前記第２信号の平均値が表す前記電極棒に実際に流され
る電流の平均値と前記設定された電流の大きさとを比較
し、その電流の平均値の方が太きい場合には前記信号補
正手段に該第２信号を太きく補正させ、小さい場合には
前記信号補正手段にその第２信号を小さく補正させる比
較手段と、を含むことを特徴とするアーク炉電流設定装
置。[Claims for Utility Model Registration] An electrode rod that generates an electric discharge between the object to be melted in a furnace and melts the object by the discharge, and detects the voltage of a power source that supplies current to the electrode rod. voltage detection means for outputting a first signal representing the magnitude of the voltage; current detection means for detecting the current flowing through the electrode rod and outputting a second signal representing the magnitude of the current; and the first signal. and electrode rod control means for controlling the position of the electrode rod by comparing the magnitudes of the second signals, the arc furnace current setting device for setting the current flowing through the electrode rod. , a setting means for setting the magnitude of the current value to be passed through the electrode rod, and interposed between the current detection means and the electrode rod control means,
Signal correction means for correcting the magnitude of the second signal supplied from the current detection means to the electrode rod control means; Signal averaging means for sequentially obtaining an average value of the second signal within a predetermined time; and the second signal. Compare the average value of the current actually flowing through the electrode rod, which is represented by the average value of the signal, with the magnitude of the set current, and if the average value of the current is larger, the signal correction means is applied. An arc furnace current setting device characterized by comprising a comparison means for making the second signal larger and, if smaller, causing the signal correction means to make the second signal smaller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983066122U JPS59170995U (en) | 1983-04-30 | 1983-04-30 | Arc furnace current setting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983066122U JPS59170995U (en) | 1983-04-30 | 1983-04-30 | Arc furnace current setting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59170995U true JPS59170995U (en) | 1984-11-15 |
| JPH0232000Y2 JPH0232000Y2 (en) | 1990-08-29 |
Family
ID=30196331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1983066122U Granted JPS59170995U (en) | 1983-04-30 | 1983-04-30 | Arc furnace current setting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59170995U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010014306A (en) * | 2008-07-02 | 2010-01-21 | Toshiba Mitsubishi-Electric Industrial System Corp | Electrode lifting/lowering device of arc furnace for steel making |
-
1983
- 1983-04-30 JP JP1983066122U patent/JPS59170995U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010014306A (en) * | 2008-07-02 | 2010-01-21 | Toshiba Mitsubishi-Electric Industrial System Corp | Electrode lifting/lowering device of arc furnace for steel making |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0232000Y2 (en) | 1990-08-29 |
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