On-line Estimation Method of Oxygen-enriched Bottom-blowing Copper Smelting Process Parameters Based on Mixed Model

Abstract

The invention relates to a hybrid-model-based on-line estimation method of oxygen-enriched bottom blowing copper smelting process parameters. The method comprises the following steps: collecting key parameters of a real-time production process of an oxygen-enriched bottom blowing copper smelting process, inputting off-line detection key process parameters by man-machine interaction, storing the parameters in a data storage platform, determining the structure of an on-line estimation model, estimating a scaling factor based on the history data of the actual production process and the actual operation experience, determining to-be-determined parameters in the actual production process and building the on-line estimation model with hybrid mechanism and experience; operating the on-line estimation model, comparing the key process parameter for solving the model with the actual production data and detecting a result of the on-line estimation model. The hybrid-model-based on-line estimation method of the oxygen-enriched bottom blowing copper smelting process parameters is assisted for mastering the production condition in a furnace and guiding the production operation and is also assisted for predicting products of the melting process, discharging slag and easily warning the copper matte discharging operation; the industrial automation level is improved; the intelligent determination of the bottom blowing cooper making process is achieved.

Description

technical field [0001] The invention relates to the technical field of bottom-blowing copper smelting, in particular to an online estimation method for oxygen-enriched bottom-blowing copper smelting process parameters based on a mixed model. Background technique [0002] Oxygen-enriched bottom-blowing copper smelting furnace is a "new technology of oxygen-enriched bottom-blowing copper smelting" with completely independent intellectual property rights in my country and the world's first industrial-scale bottom-blowing furnace. It has strong raw material adaptability, carbon-free sulfur smelting, and CO2 zero The process characteristics such as emission and low oxygen consumption have been highly appraised by experts in the field of metallurgy at home and abroad. On November 26, 2009, the China Nonferrous Metals Industry Association clearly stated in the document No. [2009] No. 252 of Zhongse Xie Tong Zi: This process is developed by my country itself, has independent intellec...

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Problems solved by technology

[0005] Aiming at the problems that many key parameters in the oxygen-enriched bottom-blowing copper smelting furnace cannot be measured in real time, the current working point cannot be quantitatively determined during the operation of the bottom-blown furnace, resulting in fluctuations in product quality, etc., the present invention proposes a hybrid model-based Online estimation method of oxygen bottom blowing copper process parameters, through the combination of mechanism and empirical modeling, the liquid level in the furnace can be estimated online with related measurable variables such as oxygen enrichment, copper concentrate feed amount, feed ratio, etc. , temperature and copper matte grade and other unmeasurable variables

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