Study on the Coke-Forming Characteristic of 1-3 Coking Coal and Its Coal Blending Scheme for CokingReport as inadecuate




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Proximate analysis, petrographic analysis and maceral composition analysis of four different 1-3 coking coal, marked as LM1,LM2,LM3,LM4, were carried out firstly in this paper. And then the coke-forming characteristic of single 1-3 coking coal and Coal blending coking perpormance of different 1-3 coking coal were tested based on the stamp-charge coking test in small iron-box and 40 kg small coke-oven experiments separately. Mean maximum reflectance of vitrinite and caking index were used for making the coal blending scheme. The result showed that the LM1 and LM4 had good Coke-forming characteristic of single coal, and its Coke-forming characteristic could be promoted with the increasing of the amount of homoeollinite and desmocollinite. It was practicable that coal blending for coking of different 1-3 coking coal with different caking property and adding small proportional coke podwer. The scheme of coal blending for coking , which met the standard of the grade-1 or grade-2 metallurgical coke, were selected according to the coke quality of small coke-over test.

KEYWORDS

1-3coking coal; coke-forming characteristic; petrographical coal blending; coal blending coking

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Author: Mingyou Wu, Yongjian Bai, Chu-an Xiong, Deping Xu, Yonggong Wang

Source: http://www.scirp.org/



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