Research and Application of the Electrode Length Soft-sensor for the Large Sealed Calcium Carbide Furnace

ZHANG Li1，HE Zhong1，ZHANG Shu-ji2，CHEN Wu2
（1.Xinjiang Tianye Group Co.，Ltd.，Shihezi 832000，China；2.Zhejiang SUPCON Software Co.，Ltd.，Hangzhou 310053，China）
Abstract：A soft?鄄sensor model of the 40×103 kVA large sealed calcium carbide furnace is presented，based on the analysis of the factors affecting the consumption of three?鄄phase electrode. The online estimation of the electrode length is realized by using APC?鄄Sensor software. The industrial practice results show that the soft sensor is accurate and reliable. The soft?鄄sensor can provide a strong support for the advanced process control of calcium carbide furnace，and has a good application prospect.
Key words：calcium carbide furnace；electrode length；electrode consumption；soft?鄄sensor