Apparatus for detecting smelting parameters of submerged-arc furnace based on electromagnetic principle

Abstract

The invention relates to an apparatus for detecting key smelting parameters, including electrode tip position, arc length and liquid level position during a smelting production, of a submerged-arc furnace based on electromagnetic principles. The apparatus comprises a magnetic field detection module of a HMC1052 model, a reset module of a 74HC123 model, an effective value conversion module IC4 of an AD736 model, A first amplification and filtering module IC2 of an AD620 model and a second amplification and filtering module IC5 of an AD623 model. The detection devices detects at test points outside the submerged-arc furnace, a magnetic induction intensity curve is obtained according to the magnetic induction intensity of each test point, and the electrode tip position, the arc length, the liquid level position and other key smelting parameters can be obtained according to the curve, so that the electrode position can be timely adjusted during a production process, and the energy loss can be reduced.

Description

technical field [0001] The invention relates to a detection device for key parameters such as electrode end position, arc length and liquid level position in the smelting production process of a submerged arc furnace, in particular to a detection device for smelting parameters of a submerged arc furnace based on the electromagnetic principle. Background technique [0002] The submerged arc furnace is an industrial electric furnace that uses arc discharge to smelt ore and extract useful metals from it. An arc is generated between the electrode end of the electric furnace and the furnace material, and the electrode is a key component that guides a strong current into the furnace for arc smelting. During the smelting process, the heat distribution in the furnace and the power balance of the three-phase molten pool are adjusted by lifting the electrodes. [0003] In the smelting process of the submerged arc furnace, the three parameters of electrode end position, arc length and ...

AI Technical Summary

Problems solved by technology

[0003] In the smelting process of submerged arc furnace, the three parameters of electrode end position, arc length and liquid level position are very critical, but at present in China, the above key parameters are mainly relied on simple instruments and personal experience to indirectly judge the above key parameters, which is difficult Ensure the optimization of smelting process parameters and affect economic parameters such as smelting energy consumption and mine consumption

For the determination of these key parameters, although there have been many discussions and methods, some of these are indirect calculations and speculations, and some can only roughly measure the position of the electrode end, and it is difficult to know the arc length and liquid level position.

So far, all the detection of the above key parameters have not involved the detection device based on the principle of electromagnetic field

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