Molten steel component monitoring and analytical equipment

Abstract

The liquid steel component monitoring and analyzing device belongs to the liquid steel analyzing device, and aims at monitoring the steelmaking process on-line, and directly and accurately judges the end point. The invention includes a detection probe, a telescopic tube, a signal generation and acquisition part and a processor. The detection probe structure is: a focusing lens is mounted in the air inside the metal cylinder, and two electrodes are mounted on the front end of the metal cylinder; the telescopic tube adopts a jointed steel pipe jacket, The inner hollow pipe passes through the conductive optical fiber, gas pipe and wire; the signal generation and collection part includes the laser controller, laser generator, optical path coupling components, spectrometer, charge coupled device CCD, blower, detection probe positioning control circuit; the processor receives the charge coupling The electrical signal transmitted by the CCD of the device is A / D converted and processed to analyze the spectral data; the start and stop of the laser generator and the parameter setting of the charge-coupled device CCD are controlled. The invention has the advantages of small volume, convenient on-site installation and fast analysis speed, and is suitable for technological processes such as converters, open hearth furnaces and refining outside furnaces.

Description

technical field [0001] The invention belongs to a molten steel analysis device, which is used for on-line monitoring of components of molten steel in a steelmaking process and judgment of an end point. Background technique [0002] The increasingly large-scale, high-speed and continuous metallurgical production requires timely and rapid analysis information, and complex process analysis must be carried out. Taking steelmaking as an example, a modern steel plant needs to analyze at least 13 pieces in the whole process from molten iron pretreatment, converter blowing, out-of-furnace refining or continuous casting, and generally requires results within a few minutes or even immediately . The modern smelting process not only requires component analysis to reflect changes in the smelting process in a timely and rapid manner, but also expects to judge the end point of smelting more accurately, so as to improve the hit rate of the smelted steel. Some iron and steel plants often c...

AI Technical Summary

Problems solved by technology

However, the time required to judge the end point still accounts for 1 / 10 of the whole smelting process, which cannot meet the requirements of dynamic control for real-time analysis. Therefore, the direct determination of the composition in molten steel has always been the goal pursued by iron and steel analysts and smelting technicians.

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