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Automatic temperature control system for top blowing oxygen converter steel-making and use method of automatic temperature control system

An automatic control system and automatic temperature control technology, applied in the field of converter steelmaking temperature control, can solve the problems of automatic control of molten steel temperature, inability to accurately measure the temperature of molten steel, hidden dangers, etc., to achieve resistance to dust and smoke interference, wide temperature control range , the effect of a wide range of applications

Inactive Publication Date: 2014-12-24
河北新武安钢铁集团文安钢铁有限公司
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  • Abstract
  • Description
  • 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

Method used

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  • Automatic temperature control system for top blowing oxygen converter steel-making and use method of automatic temperature control system
  • Automatic temperature control system for top blowing oxygen converter steel-making and use method of automatic temperature control system
  • Automatic temperature control system for top blowing oxygen converter steel-making and use method of automatic temperature control system

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Embodiment 1

[0045] Such as figure 1 and 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 conduit 1 and a waste gas collection conduit 5. The oxygen blowing conduit 1 communicates with the inside and outside of the top-blown oxygen converter and is located at Above the molten steel surface 2, the waste gas collection conduit 5 communicates with the waste gas outlet 7 through the waste gas cooling pool 6, and the automatic temperature control system 4 sequentially includes an optical receiving system 8, a two-color cross optical path 9, a photoelectric conversion unit 10, and an A / D module Transformation unit 11, information processing unit 12 and automatic control system 13, the top of the top-blown oxygen converter is provided with a temperature measurement window 3 between the oxygen blowing conduit 1 and the waste gas collection con...

Embodiment 2

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

[0052] 1) Use the automatic temperature control system 4 dual-wavelength cross method to detect the radiation intensity of molten steel;

[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 double-wavelength cross method and the temperature of molten steel.

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

[0055] The expression formula of molten steel radiation intensity is sp...

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Abstract

The invention discloses an automatic temperature control system for top blowing oxygen converter steel-making and a use method of the automatic temperature control system. The automatic temperature control system for top blowing oxygen converter steel-making comprises an optical receiving system, a double-color cross light path, a photoelectric conversion unit, an A / D analog to digital conversion unit, an information processing unit and an automatic control system, wherein a temperature measuring window is formed in the position between an oxygen blowing conduit and a waste gas collecting conduit on the top of a top blowing oxygen converter; the automatic temperature control system is positioned right above the temperature measuring window. The automatic temperature control system is high in temperature control precision and wide in temperature control range, can automatically control the temperature in an in-situ severe steel-making environment, can avoid operation accident and is worthy of popularization.

Description

technical field [0001] The invention relates to the field of temperature control in converter steelmaking, in particular to an automatic temperature control system for top-blown oxygen converter steelmaking and a method for using the same. Background technique [0002] Since 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, which in turn lead to waste of raw materials and energy. At the same time, in top-blown oxygen converter steelmaking, oxygen is blown from the top of the converter to the molten steel surface through pipes, and this chemical reaction will release a large amount of heat. In the process of high-temperature smelting with oxygen blowing, the temperature inside the converter is as high as 1600°C, and a lot of high-temperature and high-pressure gas containing various impurities is produced. The temperature of ...

Claims

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Application Information

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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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