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Coke matched with Australian coking coal for use and coking method

A technology for coking coal and coking coal is applied in the field of coal chemical industry, which can solve the problems of low strength after reaction, high reactivity of coke, low coking performance, etc., and achieve the effect of expanding the scope and expanding the resources of coking coal.

Inactive Publication Date: 2016-01-06
SHANGHAI MEISHAN IRON & STEEL CO LTD
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Problems solved by technology

[0008] The purpose of the present invention is to provide a coke and coking method equipped with Australian coking coal, which mainly solves the problem that the coking performance of Australian coking coal in the prior art is lower than that of high-quality coking coal, and the coke made with it has high reactivity (CRI). The strength (CSR) is low, and the technical problem of failing to meet the quality requirements of high-quality metallurgical coke

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  • Coke matched with Australian coking coal for use and coking method

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Embodiment Construction

[0028] The present invention is a coke blended with Australian coking coal, which is made by blending coking coal with the following mass percentages: 1 / 3 coking coal 12% to 17%, gas coal 18% to 25%, fat coal 20% to 26%, coking coal 28 %~35%, lean coal 6%~10%, Australian coking coal 6%~12%. The specific ratio is shown in Table 1. Table 1 is a specific example. Option 1 does not use Australian coking coal, Option 2 Australian coking coal ratio is 6%, Option 3 Australian coking coal ratio is 9%, and Option 4 Australian coking coal ratio is 12%. The coke-reacted coke strength (CSR) of the coke obtained from a 6m top-loaded coke oven is 65% to 70%.

[0029] A coking method using Australian coking coal includes the following steps:

[0030] a. Blend coal according to the following mass percentages, 1 / 3 coking coal 12%-17%, gas coal 18%-25%, fat coal 20%-26%, coking coal 28%-35%, lean coal 6%-10%, Australian coking coal 6%-12%;

[0031] b. The mixed coal is crushed. The mixed coal in st...

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Abstract

The invention discloses coke matched with Australian coking coal for use and a coking method, and mainly aims to solve the technical problems that coke refined by the Australian coking coal is high in reactivity (CRI), low in post-reaction strength and cannot reach quality requirements of high-quality metallurgical coke due to the fact that coking properties of the Australian coking coal in the prior art are lower than those of high-quality coking coal. According to the technical scheme adopted by the invention, the coke matched with Australian coking coal for use is prepared by mixing and coking the following blending coal in percentage by mass: 12%-17% of 1 / 3 coking coal, 18%-25% of gas coal, 20%-26% of fat coal, 28%-35% of coking coal, 6%-10% of lean coal, and 6%-12% of Australian coking coal. According to the characteristics of the Australian coking coal, corresponding control indexes, namely coal ash preparation components and alternative coal types, are disclosed, so that the quality stability of the coking coal is guaranteed when the Australian coking coal resources are used.

Description

Technical field [0001] The invention relates to a coke and a coking method, in particular to a coke mixed with Australian coking coal and a coking method, and belongs to the technical field of coal chemical industry. Background technique [0002] In recent years, due to the expansion of coking production capacity, the contradiction of the shortage of high-quality coking coal resources has become increasingly prominent. In particular, the supply of high-quality coking coal as an important coal for coking coal blending has become tighter and has become one of the focuses of competition among coking companies. All coking companies have to seek new resources overseas. However, due to the different coal-forming conditions of coking coal in different regions, although the volatile content and binding performance indicators meet the domestic classification standards of coking coal, its coking characteristics and geological characteristics have their own characteristics. This brings diff...

Claims

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Application Information

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IPC IPC(8): C10B57/04C10B53/04
Inventor 任学延顾建张文成
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD
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