Converter and finery steelmaking on-line continuous detection system

Abstract

The invention relates to full-automatic converter steelmaking, and particularly relates to a converter and finery steelmaking continuous detection system. The system comprises an oxygen lance, a light transmission lens and an optical fiber and further comprises a spectrometer and a computer, wherein the oxygen lance is provided with the light transmission lens; the light transmission lens is connected with one end of the optical fiber through an optical coupler; the other end of the optical fiber is connected with a light inlet of an external spectrometer through the optical coupler; a photoelectric conversion signal of the spectrometer is connected with a signal input port of the computer through an output end; and a signal output port of the computer is connected with a converter automatic control system. According to the invention, a means of detecting internal reaction conditions on line is provided; and based on the detection data, the continuous measurement of oxygen converter steelmaking and the full-automatic control on converting process can be realized through spectral analysis instead of sublance and flue gas analysis.

Description

technical field [0001] The invention relates to fully automatic converter steelmaking, in particular to a continuous detection system for converter and refining furnace steelmaking. Background technique [0002] Fully automatic steelmaking (including converter steelmaking and refining) has always been the dream of the industry. After decades of hard work, the control of steelmaking process is still based on experience. The main reason is the lack of continuous on-line detection means. At present, the only method that can be continuously detected online in the steelmaking process is flue gas composition analysis. The flue gas composition analysis steelmaking control method is to analyze the composition of the flue gas generated during converter blowing, and calculate the reaction situation in the furnace from the material balance calculation. To achieve anti-splash and end point C hit control, this method has large errors, the end point hit rate is not high, and the most impo...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the above-mentioned technical problem that full-automatic steelmaking cannot be realized due to the lack of on-line continuous detection means, and provides a furnace that can guide the light emitted from the blowing process in the converter and refining furnace to the outside of the furnace through lenses and optical fibers. The luminescence is separated and photoelectrically converted by the spectrometer according to the wavelength. The spectrometer sends the spectral data after photoelectric conversion to the computer for spectral analysis. It is a continuous steelmaking detection system for converters and refining furnaces that provides technical means for on-line detection of conditions reflected in the furnace.

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