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An automatic temperature control system for top-blown oxygen converter steelmaking and its application method

An automatic control system and automatic temperature control technology, which is applied in the field of converter steelmaking temperature control, can solve the problems of automatic control of molten steel temperature, potential safety hazards, and inability to accurately measure molten steel temperature, achieving anti-dust and smoke interference and wide temperature control range , the effect of a wide range of applications

Inactive Publication Date: 2017-01-04
河北新武安钢铁集团文安钢铁有限公司
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  • Claims
  • Application Information

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Problems solved by technology

[0011] The present invention proposes an automatic temperature control system for top-blown oxygen converter steelmaking and its application method, which solves the problems in the prior art that the temperature of molten steel cannot be accurately measured in a timely manner and the safety hazards of automatic control of molten steel temperature and manual temperature measurement

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  • An automatic temperature control system for top-blown oxygen converter steelmaking and its application method
  • An automatic temperature control system for top-blown oxygen converter steelmaking and its application method
  • An automatic temperature control system for top-blown oxygen converter steelmaking and its application method

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Embodiment 1

[0045] Such as figure 1 with figure 2 As shown, the present invention is an automatic temperature control system for top-blown oxygen converter steelmaking. The top of the top-blown oxygen converter is provided with an oxygen blowing duct 1 and an exhaust gas collection duct 5. The oxygen blowing duct 1 communicates with the inside and outside of the top-blown oxygen converter and is located Above the molten steel level 2, the exhaust gas collection pipe 5 communicates with the exhaust gas outlet 7 through the exhaust gas cooling pool 6. The automatic temperature control system 4 in turn includes an optical receiving system 8, a two-color cross light path 9, a photoelectric conversion unit 10, and A / D modulus The conversion unit 11, the information processing unit 12 and the automatic control system 13, the top of the top-blowing oxygen converter is provided with a temperature measuring window 3 at the position between the oxygen blowing duct 1 and the exhaust gas collection du...

Embodiment 2

[0051] Such as Figure 1~3 As shown, the method for using an automatic temperature control system for top-blown oxygen converter steelmaking of the present invention includes the following steps:

[0052] 1) Detect the radiation intensity of molten steel using the automatic temperature control system 4 dual-wavelength crossover method;

[0053] 2) Establish a physical model of molten steel radiation temperature measurement, and calculate the relationship between the ratio of the radiation intensity of molten steel measured by the dual-wavelength crossover method and the temperature of molten steel.

[0054] The physical model of molten steel radiation temperature measurement includes the expression formula of the molten steel radiation intensity, the radiation correlation coefficient A and B, the radiation correlation coefficient A and B solution method, and the molten steel temperature solution method.

[0055] The expression formula for the radiation intensity of molten steel is:

[...

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Abstract

The invention proposes an automatic temperature control system for top-blown oxygen converter steelmaking and its use method, wherein an automatic temperature control system for top-blown oxygen converter steelmaking includes an optical receiving system, a two-color cross optical path, a photoelectric conversion unit, A / D. Analog-to-digital conversion unit, information processing unit and automatic control system. The top of the top-blown oxygen converter is provided with a temperature measurement window between the oxygen blowing conduit and the waste gas collection conduit, and the automatic temperature control system is located directly above the temperature measurement window. The invention has high temperature control precision and wide temperature control range, can realize automatic temperature control in the harsh environment of the steelmaking site, avoids operation accidents, and is worthy of popularization.

Description

Technical field [0001] The invention relates to the field of temperature control of converter steelmaking, in particular to an automatic temperature control system for top-blowing oxygen converter steelmaking and a use method thereof. Background technique [0002] Because the existing top-blown oxygen converter steelmaking fails to realize automatic timely temperature measurement or automatic temperature control, there are unreasonable and complicated smelting procedures. The above situation has led to waste of raw materials and energy. At the same time, top-blown oxygen converter steelmaking involves blowing oxygen from the top of the converter to the molten steel surface through a pipe, and this chemical reaction releases a lot of heat. In the process of high temperature smelting by blowing oxygen, the temperature in the converter is as high as 1600°C, which produces a lot of high temperature and high pressure gas containing various impurities. The exhaust gas temperature is ab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21C5/32G01J5/00C21C5/46
Inventor 田乃良徐光宇
Owner 河北新武安钢铁集团文安钢铁有限公司
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