Fault monitoring method for fused magnesium furnace embedded in nuclear flexible manifold based on prior knowledge

Abstract

The nuclear flexible manifold embedded fused magnesium furnace fault monitoring method based on prior knowledge belongs to the field of fault detection and diagnosis technology, including: marking part of the data in the historical data set of the fused magnesium furnace operation process by fault type; mapping the historical data to High-dimensional space; establish an optimization model that can obtain the fault prediction matrix and use historical data sets including labeled data to calculate the fault prediction matrix; obtain fused magnesium furnace monitoring data in real time, use historical data and fault prediction matrices to calculate the fault monitoring matrix, and obtain monitoring Data fault type; this invention converts prior knowledge into knowledge that can be recognized by the machine, so that the fused magnesium furnace can operate safely and stably when the old worker is not on site; a regression residual matrix is ​​added to the fault prediction matrix to make the prediction matrix model more accurate It is flexible and has stronger generalization ability; it uses the core flexible manifold embedding method to avoid data disasters due to too high data dimensions and realize the processing and fault diagnosis of nonlinear systems.

Description

technical field [0001] The invention belongs to the technical field of fault detection and diagnosis, and in particular relates to a fault monitoring method for a nuclear flexible manifold embedded in a fused magnesium furnace based on prior knowledge. Background technique [0002] Fused magnesia is an important refractory material widely used in chemical, aerospace, metallurgy and other fields. In my country, three-phase AC fused magnesia furnaces are mainly used to produce fused magnesia. The fused magnesium furnace is actually a submerged arc furnace, which belongs to the submerged arc furnace rather than the electric arc furnace. It mainly uses the resistance heat of the material generated by the current passing through the material in the molten state as the main heat source, accompanied by arc heat, and its heat Concentration can effectively heat the material to a melting point above 2800°C, which is beneficial to smelting fused magnesia. The overall equipment of the ...

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Problems solved by technology

[0005] In the production process, experienced workers can ensure safe production and obtain high-quality products. However, it is difficult for ordinary workers to achieve such production effects. Therefore, how to use the experience and knowledge of experienced workers to realize industrial production monitoring , has become an important research direction

In the past few years, many process monitoring algorithms have been proposed, but these algorithms do not make full use of the experience and knowledge of old workers to realize the actual industrial process monitoring.

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