Photoelectric Direct Reading Spectrometer, Research And Application Of Multi-detection Analysis Of Pig Iron

Accompany with the enlargement and modernization of the present domestic and abroad steel enterprises, the production procedure becomes more and more high-speed, continuous, and automatic. The installment of analysis and inspection system should not only satisfy the accuracy, but also should be timely and speedy. In the past ten more years, most of the domestic steel enterprises began to import modern analytical instruments instead of traditional bottle-pot analysis and inspection method.At present, the usage of photoelectric spectrometer in the domestic iron-smelting system is limited in only one kind of iron, that is, basic pig iron, foundry pig iron, or nodular cast iron. But ZHANGDIAN IRON AND STEEL WORKS produces and sells the above three kinds of products simultaneously in the past many years. So this paper mainly researches using one set of spectrometer in ZDISW's iron-smelting system to analyze three kinds of pig iron, up to the target of accuracy and high-speed.This paper mainly researches the following contents and methods:Design and make the model of iron sample, improving the technology of sampling and second grinding.Make mathematical statistics analysis of the first test numerical value, confirming simulation time, including flush time, pre-spark time, and exposure time.Build mathematical model of quantitative analysis, confirm the expectation value of light intensity, build standard work curve, improving analysis precision.Analyze the system error occurred in the spectrum value and accidental error, finish straight test and the limit analysis, improve the accuracy of spectrum analysis.Make the anti-controlling sample, use the anti-controlling sample to check the controlling sample, reduce or stop the accuracy dropping occurred by controlling sample fluctuation, through the final test, inspecting and analyzing whether the accuracy rate is up to the requirement of the target.The Research and usage of photoelectric spectrometer in ZDISW's iron-smelting system improves the new technology of inspection system, greatly reduces the cost of...