This paper proposes a multi-step ahead power demand model for fused magnesia smelting processes (FMSP) which combines a linear model and an unknown nonlinear term to predict the electricity demand and its variation tendency for the next 5 steps. The linear model is identified by the multi-output fast recursive algorithm (MFRA) while the …
Since smelting process of electro-fused magnesia furnace is a complicated process which has characteristics like complex operation conditions, strong nonlinearities, and strong couplings, traditional linear controller cannot control it very well. Advanced intelligent control strategy is a good solution to this kind of industrial process. However, …
also high-quality magnesia-chromite bricks (types MCr60 and MCr50, respectively) based on fused magnesia-chromite and chrome ore. The newly developed RADEX VFG contains fused magnesia-chromite and has a higher Cr 2 O 3 content 7. RESISTAL RK10 is an alumina-chromia brick (type ACr80/5 ISO 10081-4) based on fused alumina and …
This article proposes a novel solution to resolve the process monitoring problem in the fused magnesia smelting process (FMSP). The proposed solution consists of the following main steps. First, we introduce feature extraction with reduced intervariable correlation (FERIVC) method, which reduces correlation between variables to capture …
The electricity demand of the fused magnesia smelting process (FMSP) is defined as the average electric power consumption over a fixed period of time, which is Demand …
A brief introduction to fused magnesia and its industrial production process are presented first. In order to meet the market requirements and reduce costs, fused magnesia …
This paper presents a control framework to identify the abnormal condition and make safe control scheme by fusing the related multi-source information based on the analysis of the abnormal exhausting condition in the electro-fused magnesia smelting process. For the abnormal condition identification, …
The electricity demand of the fused magnesia smelting process (FMSP) is defined as the average electric power consumption over a fixed period of time, which is used to monitor the electricity cost in the FMSP. In this article, we develop a dynamic model of the electricity demand based on the closed-loop control system of the smelting current in the FMSP. …
Jie Yang & Shaowen Lu & Liangyong Wang, 2020. " Fused magnesia manufacturing process: a survey," Journal of Intelligent Manufacturing, Springer, vol. 31 (2), pages 327-350, February. Downloadable (with restrictions)! This paper provides an overview of the manufacturing process of fused magnesia. A brief introduction to fused magnesia and …
This article introduces a semi-supervised solution to the practical task of identifying the semi-molten working condition for fused magnesium furnace. The classifier is trained under the semi-supervised learning framework using video data which are partially labeled, and it works on-line to classify the semi-molten working condition from the …
DOI: 10.1016/J.IFACOL.2018.09.278 Corpus ID: 53400310; Abnormal Condition Identification for the Electro-fused Magnesia Smelting Process @article{Li2018AbnormalCI, title={Abnormal Condition Identification for the Electro-fused Magnesia Smelting Process}, author={Hui Li and Fu Ling Wang and Hongru Li}, …
The relative distribution of Ca and Si in Sample 3, which is based on fused magnesia and 27.5 wt.% fused magnesia chromite, and Sample 4, containing MgO and ZrO 2, after an HF-ITO test are shown in Figures 13 and 14. These demonstrate Sample 3 had a similar outcome to Sample 1, namely the specimen was fully infiltrated and coated by Ca-Si slag.
Abstract. This paper presents a control framework to identify the abnormal condition and make safe control scheme by fusing the related multi-source information based on the analysis of the abnormal exhausting condition in the electro-fused magnesia smelting process. For the abnormal condition identification, the case-based reasoning is …
Original article submitted May 20, 2021. To explore the mechanism of the effect of the production process on the microstructure and properties of fused magnesia, two kinds of electro fusion processes (i.e., solid electrode and hollow electrode) were used to pre-pare fused magnesia raw material. By sampling at different positions of the …
Abstract: During the fused magnesia production process (FMPP), there is a demand peak phenomenon that the demand rises first and then falls. Once the demand exceeds its …
The Fused magnesia smelting process (FMSP) mainly includes four main conditions: starting, heating, feeding, and exhausting. Due to the great changes in the grain size and composition of magnesite ore, abnormal conditions such as semi-molten, overheating, abnormal feeding, and abnormal exhausting are prone to occur during …
An Austria-based magnesia and refractories producer sold two of its magnesia product subsidiaries to a private equity firm. The subsidiaries, located in Ireland and Norway, produced magnesia-based products used in the agricultural, environmental, hydrometallurgical, pulp and paper, and refractory industries.
Fused magnesia is superior to deadburned magnesia in strength, abrasion resistance and chemical stability. Major applications are in refractory and electrical …
To improve the accuracy of feature representation and abnormal condition identification, a new abnormal condition identification method, named integrating multiple binary neural networks based on condition-relevant information (CRI-MBNN), is presented for the electro-fused magnesia smelting process in this study. Firstly, the features …
Fused magnesia is a key refractory matter used in many fields like the chemical industry,metallurgyandaerospaceindustry,etc.Toproducethefusedmagnesia, magnesia is smelted by a Fused Magnesium Furnace(FMF) which is an energy intensive process. The energy cost accounts for over 60% of the total production c Springer Nature Singapore …
Description of the smelting process. The smelting process of fused magnesia is shown in Fig. 3. Firstly, the magnesite ore is transported to the crude-ore bin, and feeded to the fused magnesium furnace by the feeding machine. Then, through the power supply system, the electric arc is generated at the ends of the A, B and C phase …
Deep Learning Assisted Online Multi-Step Demand Forecasting of Fused Magnesia Smelting Processes. DOI: 10.1109/IAI55780.2022.9976577. Conference: 2022 4th International Conference on Industrial ...
RHI, a world market leader in refractories, has built one of the largest fusion plants for magnesia raw materials for more than 75 million euros in Norway. In this fusion plant, magnesia obtained from sea water is converted to fused magnesia, a highgrade refractory raw material, at temperatures about 2,800 degrees.
The production of fused magnesia is a process in which raw materials are melted and recrystallized in the electric-fused magnesia furnace (EFMF). Temperature is the key factor that affects production, but it is difficult to be observed and monitored due to the high internal temperature. Thus, the working current is the standard for workers to …
The production of fused magnesia is a process in which raw materials are melted and recrystallized in the electric-fused magnesia furnace (EFMF). Temperature is the key factor that affects ...
The energy efficiencies of LMP, MOP, and the preparation process were 65.5%, 46.7%, and 39.4%, respectively, and the calculation consisted of all processes in …
In our plants we produce high-quality refractories from own magnesia raw materials with the main focus on the steel industry. MORE. CMSM . Add: Felixgasse 87. 1130 Vienna, Austria. FN: 542345t. UID: ATU76043256. sales@CMSmaterials.
In Europe, more than 98% of magnesite (MgCO3 + heat MgO + CO2) is used for magnesia processing and refined in three commercial types of products: caus-tic calcined …
To improve the performance of the abnormal condition identification, the multi-source information of the abnormal conditions in the electro-fused magnesia smelting process is analyzed in this paper. An intelligent abnormal condition identification method is proposed based on Bayesian network (BN). By analyzing three …