GB1371205A - Proportional-integral regulator and method of control in a continuous casting installation - Google Patents
Proportional-integral regulator and method of control in a continuous casting installationInfo
- Publication number
- GB1371205A GB1371205A GB4419671A GB4419671A GB1371205A GB 1371205 A GB1371205 A GB 1371205A GB 4419671 A GB4419671 A GB 4419671A GB 4419671 A GB4419671 A GB 4419671A GB 1371205 A GB1371205 A GB 1371205A
- Authority
- GB
- United Kingdom
- Prior art keywords
- proportional
- signal
- mould
- control
- level
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
- B22D11/18—Controlling or regulating processes or operations for pouring
- B22D11/181—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level
- B22D11/187—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level by using X-rays or nuclear radiation
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- High Energy & Nuclear Physics (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
1371205 Automatic control of fluid level SCHLOEMANN AG 22 Sept 1971 [22 Sept 1970] 44196/71 Heading G3R A regulator controlling the level of molten metal in a continuous casting installation, comprises a differenting element followed by an integrating element, and a proportional element in parallel with the series combination of the two. As shown, flow of metal from a tundish 1 into a mould 4 is controlled by a stopper 3. The level in the mould is detected by measuring at 6 the radiation from a radio-active source 5; the signal from 6 is transmitted by 11 to a comparator 14 which also receives a desired value signal S. The resultant error signal is fed to a proportional element 21, which has a feedback amplifier, and to a diode limiter 24 (to eliminate harmonies) and two differentiating elements 13a, 13b, (the second of which is for "time factor compensation") connected to an integrator 20. The combined outputs of 20 and 21 controls the flow regulating stopper 3 by electro-hydraulic mechanism 16 ... 19. The proportional factor in the control signal is made appreciably less than the integrated factor. The signal applied to the integrator is made of opposite sign to that applied to the proportional element. The invention maintains adequate control when the delivery tube 2 to the mould is suddenly cleared after a blockage.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702046530 DE2046530A1 (en) | 1970-09-22 | 1970-09-22 | Proportional-integral controller with proportional and integral elements connected in parallel for the mold level control of continuous casting plants |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1371205A true GB1371205A (en) | 1974-10-23 |
Family
ID=5783009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4419671A Expired GB1371205A (en) | 1970-09-22 | 1971-09-22 | Proportional-integral regulator and method of control in a continuous casting installation |
Country Status (9)
| Country | Link |
|---|---|
| AR (1) | AR194932A1 (en) |
| AT (1) | AT320883B (en) |
| AU (1) | AU3380471A (en) |
| BE (1) | BE772691A (en) |
| CA (1) | CA950078A (en) |
| DE (1) | DE2046530A1 (en) |
| FR (1) | FR2108225A1 (en) |
| GB (1) | GB1371205A (en) |
| ZA (1) | ZA716314B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111283153A (en) * | 2020-03-05 | 2020-06-16 | 宣化钢铁集团有限责任公司 | Real-time accurate servo control method for electromagnetic stirring position at tail end of multi-strand continuous casting machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4597048A (en) * | 1983-09-07 | 1986-06-24 | United States Steel Corporation | Digital flow regulation of liquid-level control for a continuous casting mold |
-
1970
- 1970-09-22 DE DE19702046530 patent/DE2046530A1/en active Pending
-
1971
- 1971-09-14 AT AT797971A patent/AT320883B/en not_active IP Right Cessation
- 1971-09-16 BE BE772691A patent/BE772691A/en unknown
- 1971-09-21 FR FR7133953A patent/FR2108225A1/fr not_active Withdrawn
- 1971-09-21 ZA ZA716314A patent/ZA716314B/en unknown
- 1971-09-22 CA CA123,485A patent/CA950078A/en not_active Expired
- 1971-09-22 AR AR238095A patent/AR194932A1/en active
- 1971-09-22 AU AU33804/71A patent/AU3380471A/en not_active Expired
- 1971-09-22 GB GB4419671A patent/GB1371205A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111283153A (en) * | 2020-03-05 | 2020-06-16 | 宣化钢铁集团有限责任公司 | Real-time accurate servo control method for electromagnetic stirring position at tail end of multi-strand continuous casting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2046530A1 (en) | 1972-03-23 |
| AR194932A1 (en) | 1973-08-30 |
| FR2108225A1 (en) | 1972-05-19 |
| ZA716314B (en) | 1972-07-26 |
| BE772691A (en) | 1972-01-17 |
| AU3380471A (en) | 1973-03-29 |
| AT320883B (en) | 1975-03-10 |
| CA950078A (en) | 1974-06-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |