煤是钢生产中的重要组成部分，作为碳的来源。QDI CoalPro™玻璃体反射测量系统，从CRAIC Technologies, is designed to ensure that the coal blends used in steel production are optimum and consistent from batch to batch.
CRAIC Technologies QDI CoalPro旨在确保钢生产中使用的煤层最佳且一致
在制造钢的第一阶段将铁矿石冶炼时，可乐被用作还原剂。可乐是由低硫和低灰煤的混合物的热解制成的。该过程称为“焦化”，这是为了摆脱煤的挥发性成分，留下了灰色，多孔的固体。通常使用沥青煤的混合物，因为煤必须具有一定量的挥发性物质才能使高质量的可乐。太多或太少会导致可乐质量差。通常，26％至29％的挥发性材料的水平被认为是最佳的。亚博网站下载因此，必须在使用焦炭和钢之前对煤和煤的混合物进行测试。
将不同等级的煤混合在一起，以使焦点过程保持一致，并且挥发物保持在最佳水平。这需要对煤炭进行测试，以便符合特定的标准，以制造高质量的可乐并保持高水平的可乐生产。最重要的测试之一是玻璃体反射率。
Vitrinite is a maceral and is comprised of various polymers, cellulose and lignin. Measuring the amount of light reflected by vitrinite macerals is a key test to determine the thermal maturity of the coal blend and its suitability for steel production. The procedure has been standardized by a number of international bodies including both ISO and ASTM. All of the standards require the use of a microphotometer: a device designed to measure the intensity of light reflected from a microscopic sampling area at 546 nm. The procedure is simple: the microphotometer measures the amount of light reflected from samples from the coal blend at hundreds of points after which a statistical analysis is done by the computer. The results of the statistical analysis are used to determine the amount of vitrinite in the coal blend, its thermal maturity and therefore its value for coking. As hundreds of measurements need to be done on each sample, this used to be a very time consuming process. Today, instruments such as the QDI CoalPro™ can automate this process and dramatically improve a laboratories throughput and accuracy. The results is a histogram from which the thermal maturity of the coal to be used in steel production can be determined.
有关QDI CoalPro™Vitrinite反射测量系统和石油来源岩石分析的更多信息，请访问www.microspectra.com.