Method for evaluating cost performance of coking coal

Abstract

The invention discloses a method for evaluating the cost performance of the coking coal. The method comprises the steps that: the quality index base values and the quality evaluation standard are set according to the coal types, and the quality index base values are set parameter values for essentially meeting the coke quality requirement; and the actual values of the known quality indexes are compared with the quality index base values of the quality indexes, the scores of the actual values of the quality indexes corresponding to the quality index base values of the quality indexes are obtained according to the quality evaluating standard, a total score of the quality indexes is obtained by the scores, and then the coal price is compared with the total score of the quality indexes so as to obtain the cost performance parameters of the coals, and the cost performance of the coking coal is reflected by the comparison of the cost performance parameters. Compared with the prior art, the method for evaluating the cost performance of the coking coal provided by the invention is simple to operate and easy to implement, and the evaluating way is intuitive and clear, the evaluating result is accurate and objective, so that adjustment can be carried out according to the actual conditions. The method for evaluating the cost performance of the coking coal provided by the invention is suitable for the quality evaluation of the single coal and the blended coal.

Description

technical field [0001] The invention specifically relates to a cost-effective evaluation method for coking coal, which belongs to the fields of coal chemistry and metallurgy and coking. Background technique [0002] The traditional evaluation of the quality of coking coal often refers to the quality of coking coal, that is, a series of quality indicators (moisture, volatile matter, ash, sulfur, caking index, colloidal layer thickness, etc.) characteristic. main feature: [0003] 1. There are many quality indicators, and each quality indicator has different requirements, and there is no unified measurement standard for each other. Therefore, its quality evaluation is very professional; [0004] 2. Generally, the price of coal with good overall quality indicators is high, but there are also special cases where the price is lower due to a certain quality indicator. Therefore, the quality of coking coal cannot be objectively evaluated without adding price factors. [0005] Es...

AI Technical Summary

Problems solved by technology

[0003] 1. There are many quality indicators, and each quality indicator has different requirements, and there is no unified measurement standard for each other. Therefore, its quality evaluation is very professional;

[0004] 2. Generally, the price of coal with good overall quality indicators is high, but there are also special cases where the price is lower due to a certain quality indicator. Therefore, the quality of coking coal cannot be objectively evaluated without adding price factors.

[0005] Especially for the coking coal procurement department, although the coking coal suppliers have given the quality indicators and prices of various coal types, but because the procurement personnel are not majors in coking and coal chemistry, they cannot accurately judge the quality of each quality index corresponding to the quality of the coal. Poor, and whether the price is reasonable for the quality