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Comprehensive evaluation method for quality of coke for blast furnace

A technology of coke quality and evaluation method, applied in blast furnace, blast furnace details, chemical property prediction and other directions, can solve the problems of incomplete evaluation, many subjective factors, and large randomness, and achieve the effect of overcoming many subjective factors

Active Publication Date: 2021-10-26
HANDAN IRON & STEEL GROUP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a comprehensive evaluation method for the quality of coke used in blast furnaces, quantitatively and comprehensively evaluate the quality indicators of coke, overcome the defects of many subjective factors, large randomness, and incomplete evaluation in the qualitative evaluation of coke quality in the past, and provide a new method for coke replacement and classification. Deposit provides scientific basis, effectively solves the above-mentioned problems existing in the background technology

Method used

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  • Comprehensive evaluation method for quality of coke for blast furnace
  • Comprehensive evaluation method for quality of coke for blast furnace

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Experimental program
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Embodiment

[0084] 1. Betten and weight setting of standard coke indicators. A refryry plant blast furnace is equipped with a 2000 and 3200 blast furnace. According to the integrated factors such as the size of the furnace, the degree of strengthening the degree of coke resources, the importance of the index, the weight and reference value of the standard coke indicator are set as follows:

[0085] Table 1 Standard coke quality index benchmark and weight

[0086]

[0087] 2. Comprehensive Evaluation of Comprehensive Evaluation of Coke of Different Manufacturers. A refryry factory purchased 10 coke coke, numbered 11 manufacturers of A, B, C, D, E, F, G, H, I, J, and K, respectively. The comprehensive score of the composite quality comprehensive evaluation rule is as follows:

[0088] Table 2 Actual coke quality indicators and integrated weighting scores

[0089]

[0090] 3, classification management and use of coke.

[0091] According to the comprehensive weighting score, the four coke cla...

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Abstract

The invention relates to a comprehensive evaluation method for the quality of coke for a blast furnace, and belongs to the technical field of blast furnace ironmaking processes in the metallurgical industry. According to the technical scheme, the method comprises the steps of selecting various indexes representing coke quality, setting weight values of the coke indexes, setting standard coke index reference values, setting change division values of actual coke quality single indexes, calculating coke comprehensive evaluation scores, and conducting classified management on coke according to the relative magnitude of the comprehensive evaluation scores. The method has the beneficial effects that the coke quality indexes are quantitatively and comprehensively evaluated, the defects of many subjective factors, high randomness, incomplete evaluation and the like in the traditional coke quality qualitative evaluation are overcome, and a scientific basis is provided for coke replacement and classified storage.

Description

Technical field [0001] The present invention relates to a comprehensive evaluation method of coke quality of blast furnace, belonging to the technical field of blast furnace ironmaking process in metallurgical industries. Background technique [0002] Coke is one of the most important fuels in a blast furnace smelting process, and the quality of coke quality directly affects the high and low intensity of the furnace condition. There are many compacted quality indicators, including grayme, volatile, sulfur, water, crush strength, wear resistance, thermal reactivity, heat reactivity, average particle size, content, etc., these individual indicators have Regulations. Affected by various factors such as refining coal resources, cost, blast furnace demand, different coking manufacturers have the same coke index, each has focused, some gray, low sulfur, and some of the shrock resistance, wear resistance However, there is no unified comprehensive quantitative indicator for this reason, ...

Claims

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Application Information

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IPC IPC(8): G16C60/00G16C20/20G16C20/30C21B5/00
CPCG16C60/00G16C20/20G16C20/30C21B5/00C21B2300/04Y02P90/30
Inventor 李志明张泽润张文静霍红艳李永刚王燕飞靳志刚
Owner HANDAN IRON & STEEL GROUP