Fine distribution method for byerlyte

Abstract

The invention relates to a coking coal fractionizing and blending method, which comprises the steps of blending the coking coals for coal blending. The coking coals for coal blending at least includes coking coal, 1 / 3 coking coal, and lean coal, wherein the coking coal includes 1<#> coking coal or / and 2<#> coking coal; the 1 / 3 coking coal includes 1<#> 1 / 3 coking coal; the lean coal includes 1<#> lean coal or / and 2<#> lean coal; and the 1<#> coking coal is 25 to 50% the total weight of the coking coals, 2<#> coking coal 8 to 25%, 1<#> 1 / 3 coking coal 25 to 45%, 1<#> lean coal 8 to 20%, and 2<#> lean coal 5 to 14%. According to the invention, coal quality of coking coal can be scientifically and reasonably fractionized and used, for accurately instructing coal blending, thus reasonably using coking coals and finely blending coal.

Description

technical field [0001] The invention relates to the technical field of coking coal blending, in particular to a coking coal blending method. Background technique [0002] Due to the different coal-forming processes and coal-forming plants, coking coal has a variety of types and complexity of basic properties. China has a vast territory, wide distribution of coal sources, and great differences in coal quality. The coal of the same classification varies with the coal quality in different regions; the coal quality of different mines in the same area is also different, and the coal quality of different coal seams in the same mine will also vary. This difference may be the same coal in the current national standard classification of coking coal, but it will cause large fluctuations in coke quality. [0003] At present, the coking coal blending method is mainly classified according to the national standard of large coal types - gas coal, gas fat coal, fat coal, 1 / 3 coking coal, ...

AI Technical Summary

Problems solved by technology

[0003] At present, the coking coal blending method is mainly classified according to the national standard of large coal types - gas coal, gas fat coal, fat coal, 1 / 3 coking coal, coking coal and lean coal to adjust the proportion of coal blending, and coal blending cannot be achieved It is accurate and reasonable, because some coal types in coking coal blending cannot play the role of corresponding coal types, especially coking coal, 1 / 3 coking coal and lean coal, although they are all converted into Coking coal or 1 / 3 coking coal, but in coal blending and coking, some can play the role of corresponding coal types, some can play a better role than corresponding coal types, and some coals can't play the role of corresponding coal types at all

[0004] In order to achieve accurate and reasonable coal blending, many domestic coking enterprises began to further subdivide the used coking coal into subcategories on the basis of national standards, such as dividing coking coal into coking coal 1, coking coal 2, etc., but this classification method less scientific and applicable

Generally used: 1. Subdivided according to the coal production area, but because the coal quality in the same area is very different, that is, the coal quality of different coal seams in the same mine is also very different. Larger fluctuations; 2. Use the superposition of the reflectance distribution map to subdivide, this method has poor applicability, and it is difficult to find coal with better superposition of the reflectance distribution map in actual work.