1/3 coking coal quality evaluation method
A coking coal and coal quality technology, applied in the field of 1/3 coking coal coal quality evaluation, can solve the problems of large differences in evaluation, inability to accurately match, unclear weights, etc., and achieve the effect of reducing the fluctuation range of thermal properties
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[0017] The present invention will be further described in detail through specific embodiments below.
[0018] The proportion of 1 / 3 coking coal of an enterprise is 30%, and its coal blending plan is as follows:
[0019] Gas fat coal: 5%; 1 / 3 coking coal: 30%; fat coal: 10%; coking coal 1#: 20%; coking coal 2#: 20%; lean coal: 15%. The G value of the coking coal 1# is ≥85, and the proportion of coke-forming coarse-grain mosaic structure is ≥60%, and the G value of the coking coal 2# is 80-85, and the proportion of coke-forming coarse-grain mosaic structure is 50-60%.
[0020] Gas fat coal, fat coal, coking coal 1#, coking coal 2#, and lean coal remain unchanged, and four groups of different 1 / 3 coking coals are used to carry out coal blending and coking according to the above-mentioned ratios to obtain the strength of coke after thermal reaction. See Table 1 for the data.
[0021] Table 1 The strength of coke after thermal reaction after coal blending with different 1 / 3 cokin...
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