Rotating furnace molten steel temperature measurement device

Abstract

The invention discloses a rotating furnace molten steel temperature measurement device which comprises an optical telescope, a light-filtering device, a photoelectric conversion unit and a processor, wherein the optical telescope is connected with the light-filtering device and used for sending the obtained spectral information into the light-filtering device for filtering so as to obtain the filtered spectral information; the light-filtering device is connected with the photoelectric conversion unit and used for sending the filtered spectral information into the photoelectric conversion unit and converting the filtered spectral information into an electrical signal; and the photoelectric conversion unit is connected with the processor and used for sending the electrical signal into the processor for computing so as to obtain the rotating furnace molten steel temperature information corresponding to the electrical signal. According to the rotating furnace molten steel temperature measurement device, the optical telescope is used for acquiring the spectral information of the flame at a furnace mouth from a long distance in real time, and the light intensity value corresponding to the spectral information can be obtained according to the spectral information, so that the severe high temperature environment of the furnace mouth can be avoided, the service life of the device is prolonged, the device is convenient to install and maintain and is not limited by the size of a rotating furnace, and the cost is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of temperature detection, in particular to a temperature detection device for molten steel in a converter. Background technique [0002] With the continuous improvement of my country's industrial level, my country's steel production is also increasing. The steel production of converter steelmaking accounts for more than 80% of the total steel production, and it occupies a dominant position in the output of converter steel in large and medium-sized key iron and steel enterprises. In converter steelmaking, steelmaking end point control is one of the key technologies of converter steelmaking. The end temperature control of blowing in converter steelmaking is an important operation at the end of converter steelmaking, so how to accurately obtain the temperature of molten steel is very important. [0003] The current detection methods for the end point temperature of converter steelmaking mainly include manual s...

AI Technical Summary

Problems solved by technology

However, the measurement time of the manual sampling method is far from meeting the real-time requirements of the smelting process control, and there are splashing accidents during sampling, which poses a great safety hazard

The secondary gun method has a high hit rate in temperature measurement, but it is expensive. At the same time, the probe is a consumable and cannot continuously obtain blowing information. It has high requirements on the furnace capacity and is generally only suitable for converters with a capacity of more than 100 tons.

The mass spectrometer used in the furnace gas analysis method has a high temperature hit rate and strong process control ability, but it has strict requirements on production and smelting standards, is expensive, and difficult to maintain equipment

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