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 …
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In a one-step process by melting raw magnesite directly or using our high-purity, magnesiteflotation-concentrate, prebriquetted in our electric-arc, melting furnaces. We offer lime silica ratios of 1:1 and 2:1 with our one-step fused magnesia. For our high purity large-crystalsize, fused magnesia, we are melting pre-briquetted balls from our ...
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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 ...
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The production of fused magnesia is a complex physical and chemical process. Gas, solid, liquid, and arc plasma coexist in the furnace, and momentum, mass, and heat transfer are coupled. Online measurement is hardly realized. The key to producing large-sized fused magnesia is to master the real-time temperature distribution in the …
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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 …
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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 …
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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 …
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With the continuous development of intelligent manufacturing technology, fused magnesia manufacturing process begins to emerge new opportunities, with an emphasis on future potential intelligent technologies. This paper provides an overview of the manufacturing process of fused magnesia. A brief introduction to fused magnesia and …
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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 …
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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 …
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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.
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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 prepare fused magnesia raw material. By sampling at different positions of the fused magnesia chunk, the effects of …
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The mechanism model of the smelting process is combined with the data-driven method using artificial intelligence technology and a new saturated alternating identification strategy is proposed, showing the effectiveness of the proposed intelligent method of …
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Solid-state reaction sintering is a process used to produce dense, homogeneous materials from powders. It involves the application of heat and pressure to a powder mixture, which causes the particles to react and form a solid material. ... Fused magnesia power and magnesite tailings were used as raw materials, respectively, and …
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To produce the fused magnesia, magnesia is smelted by a Fused Magnesium Furnace(FMF) which is an energy intensive. The energy cost takes over 60% of the total production cost. The electricity demand is used to judge the electric energy cost during the Fused Magnesia Smelting Process(FMSP) and it can not exceed a certain limit P¯
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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 …
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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 ...
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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 …
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DOI: 10.1016/j.isatra.2018.03.011 Corpus ID: 5111883; Abnormal condition identification and safe control scheme for the electro-fused magnesia smelting process. @article{Li2018AbnormalCI, title={Abnormal condition identification and safe control scheme for the electro-fused magnesia smelting process.}, author={Hui Li and Fu Ling …
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Fused magnesia smelting for fused magnesium furnace (FMF) is an energy intensive process with high temperature and comprehensive complexities. Its operational index namely energy consumption per ton (ECPT) is defined as the consumed electrical energy per ton of acceptable quality and is difficult to measure online.
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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 …
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Fused Magnesia (MgO) is normally manufactured by the electric arc melting of caustic calcined magnesia, deadburned magnesia or raw magnesite in furnaces at temperatures in excess of 2750°C, producing a refractory product whose altered crystalline structure is such that its characteristics and performance are superior to competing materials.
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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.
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At present, the research on the production process of fused magnesia mainly focuses on the following aspects: energy consumption, grade rate of fused magnesia, …
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The process leads to intermediate products, which include Caustic Calcined Magnesite (CCM), Dead Burned Magnesite (DBM), and Fused Magnesite (FM). Each of these …
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This paper provides an overview of the manufacturing process of fused magnesia. A brief introduction to fused magnesia and its industrial production process are …
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Jie Yang & Shaowen Lu & Liangyong Wang, 2020. " Fused magnesia manufacturing process: a survey," Journal of Intelligent Manufacturing, Springer, vol. 31 (2), pages …
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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 …
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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 …
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In the electro-fused magnesia smelting process, the existing data and expert knowledge lay foundation for proposing new method. The CBR has a huge advantage in taking advantage of the existing knowledge included in the historical data. At the same time, there is a large amount of uncertain information in the electro-fused …
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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 …
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