METHOD FOR OPERATING A MELT-METALLURGIC FURNACE, AND FURNACE
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United States of America Patent
Stats
-
N/A
Issued Date -
Sep 24, 2009
app pub date -
Sep 13, 2007
filing date -
Sep 18, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a method for operating a melt-metallurgic furnace (2), particularly an arc furnace, during the operation of which a number of operating parameters are maintained within predetermined thresholds, wherein for this purpose a control or regulating device (1) is utilized. In order to obtain greater efficiency of the furnace, the invention provides that the control or regulating device (1) has a conventional control or regulating device (9) and a fuzzy regulating device (10), which each feed their correcting variables to a mediator (11), wherein the mediator (11) calculates the actuating signal used according to a predetermined weighting factor (F) from the correcting variable coming from the conventional control or regulating device (9) and from the fuzzy regulating device (10). The invention further relates to a melt-metallurgic furnace, particularly an arc furnace.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SMS DEMAG AKTIENGESELLSCHAFT | EDUARD-SCHLOEMANN-STRASSE 4 DUESSELDORF D-40237 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Dorndorf, Markus | Hamburg, DE | 8 | 16 |
# of filed Patents : 8 Total Citations : 16 | |||
Krueger, Klaus | Hamburg, DE | 7 | 9 |
# of filed Patents : 7 Total Citations : 9 | |||
Schubert, Manfred | Oberhausen, DE | 16 | 49 |
# of filed Patents : 16 Total Citations : 49 |
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Patent Citation Ranking
- 3 Citation Count
- H05B Class
- 4.07 % this patent is cited more than
- 16 Age
Forward Cite Landscape
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text
- a bearing plate (14) that can be fastened to the fixed contact (12);a main spring (15) having a first end (151) with which it can engage the movable contact, and a second end (152);a return spring (16) having a first end (161) with which it engages at the bearing plate, and a second end (162);an actuating lever (17) having a first engagement area (171) at which the main spring (15) engages with its second end (152), and having a second engagement area (172) at which the return spring (16) engages with its second end (162);whereinthe actuating lever (17) is swivelably mounted on the bearing plate (14) such that the actuating lever (17) can assume a first end position in which the main spring (15) is at least partially relaxed and the return spring (16) is tensioned and in which, in particular, the movable contact (13) is disconnected from the fixed contact (14), and a second end position in which the return spring (16) is at least partially relaxed and the main spring (15) is tensioned and in which, in particular, the movable contact (13) is pressed against the fixed contact (14).

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