Method of establishing coking coal ash content influence model on thermal performance of coke

An impact model and coking coal technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the quantitative impact of unreported coke thermal properties, the impact of unreported coke reaction thermal properties, etc. The effect of coal guiding ideology science

Active Publication Date: 2015-09-23
武汉钢铁有限公司
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However, this document neither reported the influence of the ash content of each specific single coal on the thermal performance of coke, nor did it report the quantitative influence of its influence on the thermal performance of coke.

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  • Method of establishing coking coal ash content influence model on thermal performance of coke
  • Method of establishing coking coal ash content influence model on thermal performance of coke
  • Method of establishing coking coal ash content influence model on thermal performance of coke

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[0015] The present invention will be further described in detail through specific embodiments below.

[0016] Technical scheme of the present invention comprises the steps:

[0017] 1) Set Vd mi = V daf ×(100-Ad mi ) / 100, to calculate the dry basis volatile Vd of the i-th single coking coal in the blended coal mi coal;

[0018] 2) Setting , the w i is the weight ratio on a dry basis of the i-th single coking coal in the blended coal; the volatile matter Vd on a dry basis of each single coking coal in the blended coal calculated in step 1) mi Substituting the numerical value of step 2) into the formula to calculate the dry basis ash content of the coke;

[0019] 3) Set P to be the influence index of the ash content of each single coking coal in the blended coal on the thermal performance of coke, and let:

[0020] P = ( A d j - A ...

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Abstract

The invention discloses a method for establishing a model displaying influence of ash content of coking coal on coke thermal performance. The method includes the steps that 1) a relation between dry basis volatiles Vdmi of an i-type coking coal in coordinating coal and dry ash-free basis volatiles Vdafi of the i-type coking coal and dry basis volatiles Vdmi thereof is set; 2) the dry basis ash content of coke is set, and wi is the weight ratio of i-type coking coal and the coordinating coal; 3) the P is set to be the impact index of singe type coking coal dry basis ash contents in the coordinating coal to the coke thermal performance, the P satisfies the equation of P=(Adj-Adjz)*K, the K is an impact constant, the Adjz is the regulated coke based dry basis ash content, the P value is positive and stands for the fact that the influence of the coking coal on the coke thermal performance relative to the dry basis ash content of a coke base is negative, and on the contrary, the influence is positive. The method is beneficial to knowing the weight of the ash content in coking coal quality evaluation.

Description

technical field [0001] The invention belongs to the technical field of coal blending and coking, and in particular relates to a method for establishing a model of the influence of coking coal ash on the thermal performance of coke. Background technique [0002] The dry basis ash in coke is one of the important indicators of coke quality control. It not only affects the ironmaking output in the blast furnace production process, increases the cost of slagging raw materials and coke ratio, but also deteriorates the quality of coke in the blast furnace. The dry basis ash content in coke affects the quality of coke in many ways. For example, if the ash content is high, the reactivity of coke will increase, and the strength will decrease after the reaction. Therefore, controlling the dry basis ash in coke is of great significance for improving the quality of coke, especially for improving the thermal performance of coke. However, since the dry basis ash in coke mainly comes from ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 项茹薛改凤陈鹏任玉明查海鑫鲍俊芳刘向勇张雪红宋子逵詹立志
Owner 武汉钢铁有限公司
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