Real-time system and method of monitoring transient operations in continuous casting process for breakout prevention
US6885907B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2004 |
| Grant date | Apr 26, 2005 |
| Priority date | — |
| Expiry date | May 27, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B23/024
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A real-time system and method for online monitoring a transient operation in a continuous casting process. The transient operation refers to, but is not limited to, submerged entry nozzle changes, flying tundish changes, product grade changes, etc. This invention treats the aforementioned transient operations as batch processes and utilizes multiway principal component analysis to develop a multivariate statistical model to characterize normal process transitions based on carefully selected historical process data. Such a model is used by an online monitoring system to determine if a continuous caster transient operation is normal. This monitoring system can further be used to predict an impending breakout, one type of catastrophic process failures which may occur in a continuous casting process, during the transient operation. Process variables that are most likely related to the predicted breakout are identified by the system such that appropriate control actions can be taken to prevent an actual breakout occurrence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.