RH真空室内钢液温度连续测量系统的开发与应用

炼钢 ›› 2016, Vol. 32 ›› Issue (6): 34-37.

RH真空室内钢液温度连续测量系统的开发与应用

钢铁研究总院工艺所，北京 100081

接受日期:1900-01-01 出版日期:2016-12-05

Development and application of RH molten steel temperature continuous measuring system

Accepted:1900-01-01 Online:2016-12-05

摘要/Abstract

摘要： 为了能够连续在线测量RH真空槽内钢液温度、及时准确计算精炼过程各阶段的温降速率，指导温度调整操作，设计开发了基于红外热像及比色测温技术的非接触式连续测温装置，用于RH真空槽内钢水温度的实时监测。该装置在120 t RH精炼炉进行了298炉工业试验，将每炉连续测温结果中对应于钢液循环开始、脱碳结束、加铝结束、喷粉结束和精炼终点5个时刻的温度值与人工热电偶点测结果进行了比对，比对结果表明：该装置测量的温度与人工点测的温度差值在－5.0～6.3 ℃，差异波动在±3 ℃以内的比例是92.1 %，在5 ℃以内的炉次比例达98.7 %。该技术已在120 t RH精炼炉上成功在线应用。

关键词: 钢水温度, RH精炼, 红外比色测温, 连续测温

Abstract: In order to continuous on-line measure the temperature of liquid steel in RH vacuum tank, timely and accurately calculate the temperature drop rate at all stages of refining process, instructing the temperature adjustment operation，the temperature measuring device was designed and developed based on infrared thermal image and colorimetric temperature measurement technology. The industrial test of the device was carried on 120 t RH refining furnace and 298 heats’ data was obtained. The temperature value corresponding each stages of steel fluid circulation begin, end of decarburization, end of aluminum adding, end of powder injection and endpoint obtained by the device was contrasted with the manual measurement results measured by means of thermocouples. The comparison results show that the temperature difference between this device and manual measurement varies in the range of －5.0 ℃ to 6.3 ℃. Among them, the proportion of the difference fluctuation in range of ±3 ℃ is 92.1 %,within ± 5 ℃ up to 98.7 %. At present，the technology has been successfully online applied in 120 t RH refining furnace.

Key words: molten steel temperature, RH refining, infrared colorimetric temperature measurement, continuous temperature measuring

舒宏富，刘浏，杨利彬. RH真空室内钢液温度连续测量系统的开发与应用[J]. 炼钢, 2016, 32(6): 34-37.

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