Electromagnetic stirring analyzing and constructing method based on electrical magnesite smelting furnace

Abstract

The invention relates to an electromagnetic stirring analyzing and constructing method based on an electrical magnesite smelting furnace. The electromagnetic stirring analyzing and constructing method includes the following steps that an electromagnetic field space is dispersed into grids of 50*50*50, digital values of discrete points are used for simulating actual electromagnetic field distribution to obtain digital value distribution of electric-field vectors in the x, y and z directions during 100-200 step iteration; an electromagnetic stirrer modeled according to the Maxwell equation to obtain the relation between magnetic induction intensity and electromagnetic stirring; when the electromagnetic stirrer is simulated, the magnitude of electromagnetic force is determined by magnetic induction intensity and induction currents together; under the action of the optimal stirring frequency of the electromagnetic stirrer, conducting magnesium oxide solution rotates after obtaining lorentz force. Materials of the electrical magnesite smelting furnace are stirred through an electromagnetic field, the strong flushing effect on the front edge of an interface is achieved, heat transfer and mass transfer in the crystallization process can be effectively changed, pollution to melt in the stirring process is avoided, and no quality difference caused by artificial factors exists in electromagnetic stirring.

Description

technical field [0001] The invention relates to a fault detection and diagnosis technology, in particular to an electromagnetic stirring analysis and construction method based on a fused magnesium furnace. 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 is concentrated , can effectively heat the material to a melting point above 2800°C, which is beneficial to smelting fused magnesia. The equipment of the fused magnesium furnace mainly includes: transforme...

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Problems solved by technology

[0008] Aiming at the lack of uneven heating caused by the limited arc heat range of the three-phase electrodes of the electric fused magnesium furnace in the prior a...

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