钢水红外辐射测温信号处理器的研究与实现
发布时间：2019-07-08 19:20
【摘要】：在炼钢工业中,钢水温度控制直接体现炼钢流程控制的发展水平,而中间包钢水温度的测量和控制不容忽视。它直接影响连铸坯的质量和连铸板坯凝固位置,有效降低成本,保证炼钢流程的顺利进行。在现场条件下,钢包散热、钢液表面渣层、包内吹氩气等均会对中间包的温度产生影响。为实时了解连铸过程中中间包的温度变化,需要动态的对钢水的温度进行精确监测。依据装置测得的精确的钢水温度,最终通过等离子加热的措施保证中间包钢水温度的稳定。本课题的钢水信号处理器是基于中间包温度的检测而设计的,主要的研究内容为：研究红外理论,设计系统软件和硬件,提出测量方法并验证,采集数据并作分析处理。本系统基于双处理器设计,主要包括两部分,一部分为信号采集部分。该部分分为电源板和信号采集板,可实现电源供电、弱电流信号采集以及环境温度检测等,具有体积小,与测温探头实现一体化,有效减少干扰的优点；另一部分为主控制部分,实现数据的实时接收、LCD显示、存储以及GPRS远程网络传输等。在测量方法上利用间接切换电路方法并以数据拟合和软件补偿的方式进行钢水温度检测。通过总体的电路设计和系统的调试运行,完成了各部分主要的功能；最后经过大量的数据处理和分析,完成了信号采集部分的弱电流精度为≤2‰(1400～1600℃高温段)；≤5‰(1000～1400℃低温段)的指标。同时,解决了信号处理器和上位机的动态IP地址连接的问题。该信号处理器的设计最终实现稳定运行,功能相对完善,基本能够满足现实的需要,能够实时监测钢水温度。
文内图片：
图片说明：图１１不同温度下绝对黑体能量福射曲线逡逑Ｆｉｇ．邋２．１邋Ｔｈｅ邋ａｂｓｏｌｕｔｅ邋ｒａｄｉａｔｉｏｎ邋ｅｎｅｒｇｙ邋ｃｕｒｖｅ邋ｕｎｄｅｒ邋ｄｉｆｆｅｉ＊ｅｎｔ邋ｔｅｍｐｅｒａｔｕｒｅ逡逑
[Abstract]:In steelmaking industry, molten steel temperature control directly reflects the development level of steelmaking process control, but the measurement and control of tundish molten steel temperature can not be ignored. It directly affects the quality of continuous casting billet and the solidification position of continuous casting slab, effectively reduces the cost and ensures the smooth progress of steelmaking process. Under field conditions, the heat dissipation of ladle, slag layer on molten steel surface and argon blowing in ladle will affect the temperature of tundish. In order to understand the temperature change of tundish in continuous casting process in real time, it is necessary to monitor the temperature of molten steel dynamically. According to the accurate molten steel temperature measured by the device, the temperature of molten steel in tundish can be guaranteed by plasma heating. The molten steel signal processor is designed based on the detection of tundish temperature. The main research contents are as follows: studying infrared theory, designing system software and hardware, putting forward measurement method and verification, collecting data and analyzing and processing. The system is based on dual-processor design, including two parts, one of which is signal acquisition. This part is divided into power supply board and signal acquisition board, which can realize power supply, weak current signal acquisition and environmental temperature detection, which has the advantages of small volume, integration with temperature measurement probe and effectively reducing interference. The other part is the main control part, which realizes real-time data reception, LCD display, storage and GPRS remote network transmission. In the measurement method, the indirect switching circuit method is used to detect the temperature of molten steel by data fitting and software compensation. Through the overall circuit design and the debugging operation of the system, the main functions of each part are completed. Finally, through a large number of data processing and analysis, the weak current accuracy of the signal acquisition part is 鈮，
本文编号：2511816
文内图片：
图片说明：图１１不同温度下绝对黑体能量福射曲线逡逑Ｆｉｇ．邋２．１邋Ｔｈｅ邋ａｂｓｏｌｕｔｅ邋ｒａｄｉａｔｉｏｎ邋ｅｎｅｒｇｙ邋ｃｕｒｖｅ邋ｕｎｄｅｒ邋ｄｉｆｆｅｉ＊ｅｎｔ邋ｔｅｍｐｅｒａｔｕｒｅ逡逑
[Abstract]:In steelmaking industry, molten steel temperature control directly reflects the development level of steelmaking process control, but the measurement and control of tundish molten steel temperature can not be ignored. It directly affects the quality of continuous casting billet and the solidification position of continuous casting slab, effectively reduces the cost and ensures the smooth progress of steelmaking process. Under field conditions, the heat dissipation of ladle, slag layer on molten steel surface and argon blowing in ladle will affect the temperature of tundish. In order to understand the temperature change of tundish in continuous casting process in real time, it is necessary to monitor the temperature of molten steel dynamically. According to the accurate molten steel temperature measured by the device, the temperature of molten steel in tundish can be guaranteed by plasma heating. The molten steel signal processor is designed based on the detection of tundish temperature. The main research contents are as follows: studying infrared theory, designing system software and hardware, putting forward measurement method and verification, collecting data and analyzing and processing. The system is based on dual-processor design, including two parts, one of which is signal acquisition. This part is divided into power supply board and signal acquisition board, which can realize power supply, weak current signal acquisition and environmental temperature detection, which has the advantages of small volume, integration with temperature measurement probe and effectively reducing interference. The other part is the main control part, which realizes real-time data reception, LCD display, storage and GPRS remote network transmission. In the measurement method, the indirect switching circuit method is used to detect the temperature of molten steel by data fitting and software compensation. Through the overall circuit design and the debugging operation of the system, the main functions of each part are completed. Finally, through a large number of data processing and analysis, the weak current accuracy of the signal acquisition part is 鈮，
本文编号：2511816
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