RH真空室内钢液温度连续测量系统的开发与应用
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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120tRH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120tRH精炼炉上成功在线应用。
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 tRH refining furnace and 298heats' 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 tRH refining furnace.
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 tRH refining furnace and 298heats' 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 tRH refining furnace.
引文
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[13]吴海滨,陈军,张杰.比色测温双波长的选择及滤波片最小带宽的计算[J].量子电子学报,2006,23(4):569.
[14]浦昭邦.光电测试技术[M].北京:机械工业出版社,2004:123-128.
[15]吴海滨,刘纯红.比色测温理论中误差修正函数的研究[J].量子电子学报,2009,26(1):121-126.
[2]谢树元,林云,杜斌,等.RH精炼温度与合金模型的开发与应用[J].炼钢,2006,22(6):5-7.
[3]吴扬,倪红卫,张华,等.RH-MFB精炼时钢水温度预报模型的开发[J].特殊钢,2014,35(3):8-10.
[4]王毓男,包燕平,崔衡,等.RH-TOP精炼终点钢水温度的预报模型[J].炼钢,2011,27(5):53-56.
[5]杜斌,黄可为,林云,等.集成式RH过程控制模型技术及应用[J].吉林大学学报(工学版),2004,34(3):454-458.
[6]林云,谢树元,杜斌,等.RH精炼温度模型仿真及应用[J].宝钢技术,2003(6):40-43.
[7]徐红,茅洪祥,张旺洲,等.中间包钢水的连续测温技术[J].炼钢,1999,15(5):61-63.
[8]吴晓东,刘青,徐安军,等.宝钢炼钢厂连铸中间包钢水温度的研究[J].钢铁,2001,36(8):19-22.
[9]次英,谢植,张华.中间包钢水连续测温的新方法[J].东北大学学报(自然科学版),2004,25(5):460-462.
[10]胡署名,次英,俞晓光,等.黑体空腔式中间包钢水连续测温系统与应用[J].炼钢,2004,20(6):48-50.
[11]张先棹.冶金传输原理[M].北京:冶金工业出版社,1988:306-321.
[12]吴海滨,王飞,舒宏富,等.红外热像及比色测温技术在RH炉钢水温度检测中的应用[J].大气与环境光学学报,2013,8(4):292-297.
[13]吴海滨,陈军,张杰.比色测温双波长的选择及滤波片最小带宽的计算[J].量子电子学报,2006,23(4):569.
[14]浦昭邦.光电测试技术[M].北京:机械工业出版社,2004:123-128.
[15]吴海滨,刘纯红.比色测温理论中误差修正函数的研究[J].量子电子学报,2009,26(1):121-126.