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Method for evaluating pulverization of coke in blast furnace

An evaluation method and coke technology, which can be used in measuring devices, instruments, scientific instruments, etc., can solve the problems of inability to evaluate coke pulverization, and achieve scientific and effective results.

Inactive Publication Date: 2020-05-12
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Aiming at the deficiencies of the prior art, the present invention provides a coke pulverization evaluation method in a blast furnace, which mainly solves the technical problem that coke pulverization in a blast furnace cannot be evaluated in the prior art. The method of the present invention is used to evaluate coke pulverization in a blast furnace The pulverization characteristics of blast furnace ash are characterized by the carbon content of blast furnace ash to characterize the pulverization of coke in the blast furnace and evaluate the coke in the blast furnace

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  • Method for evaluating pulverization of coke in blast furnace
  • Method for evaluating pulverization of coke in blast furnace
  • Method for evaluating pulverization of coke in blast furnace

Examples

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Embodiment 1

[0042] A coke pulverization evaluation method in the blast furnace, using 3200m 3 The blast furnace compares two kinds of coke A and coke B, the method includes the following steps:

[0043] 1) After the coke A to be evaluated enters the blast furnace and runs stably for 8 hours, samples are taken every 4 hours, and 6 pieces of blast furnace dust are collected;

[0044] 2) Take the blast furnace dust and dry it, crush it to make a powder sample, analyze the carbon content in the blast furnace ash with a carbon-sulfur meter, and get 6 values ​​of the carbon content in the blast furnace ash, as x 1 -x 6 ; see Table 1.

[0045] 3) After the coke B to be evaluated enters the blast furnace and runs stably for 8 hours, samples are taken every 4 hours, and 6 pieces of blast furnace dust are collected;

[0046] 4) Take the blast furnace dust removal ash and dry it, crush it to make a powder sample, analyze the carbon content in the blast furnace ash with a carbon-sulfur meter, and ...

Embodiment 2

[0063] A coke pulverization evaluation method in the blast furnace, using 3200m 3 The blast furnace compares two kinds of coke C and coke D, the method includes the following steps:

[0064] 1) After the coke C to be evaluated enters the blast furnace and runs stably for 8 hours, samples are taken every 4 hours, and 5 pieces of blast furnace dust are collected;

[0065] 2) Take the blast furnace dust and dry it, crush it to make a powder sample, analyze the carbon content in the blast furnace ash with a carbon-sulfur meter, and get 5 values ​​of the carbon content in the blast furnace ash, as x 1 -x 5 ; see Table 2.

[0066] 3) After the coke B to be evaluated enters the blast furnace and runs stably for 8 hours, samples are taken every 4 hours, and 5 pieces of blast furnace dust are collected;

[0067] 4) Take the blast furnace dust and dry it, crush it to make a powder sample, analyze the carbon content in the blast furnace ash with a carbon-sulfur meter, and get 5 values...

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Abstract

The invention provides a method for evaluating pulverization of coke in a blast furnace, and relates to the technical field of coke performance evaluation methods. The method comprises the following steps: 1) after coke A to be evaluated enters a blast furnace and stably runs for a certain time, sampling once every a certain time, and taking n pieces of blast furnace fly ash; 2) drying and crushing the blast furnace fly ash to prepare a powder sample, and analyzing the carbon content in the blast furnace ash by using a carbon-sulfur instrument to obtain n carbon content values of the blast furnace ash as x1-xn; 3) after to-be-evaluated coke B enters the blast furnace and stably runs for a certain time, sampling once every a certain time, and taking m pieces of blast furnace fly ash and thelike; when t is less than t0, considering that the to-be-evaluated coke has no difference from the original coke pulverization; and when t is larger than or equal to t0, considering that the difference exists. The method is used for evaluating the pulverization characteristic of the coke in the blast furnace, and the pulverization condition of the coke in the blast furnace is characterized by measuring the carbon content of the blast furnace ash so as to evaluate the coke in the blast furnace.

Description

technical field [0001] The invention relates to the technical field of coke performance evaluation methods, in particular to a coke pulverization evaluation method in a blast furnace. Background technique [0002] Coke pulverization characteristics is one of the key indicators of the blast furnace, which directly affects the air permeability of the blast furnace, and is an important indicator of the smooth operation of the blast furnace. [0003] The current evaluation index of metallurgical coke, document 1, the national standard GB / T 1996-2017 (metallurgical coke), the classification indicators of metallurgical coke include ash, sulfur, crushing strength, wear resistance, reactivity, post-reaction strength and powder content Wait. Among them, the particle size of the powder content is small, and it is easy to form coke powder after entering the blast furnace, which is carried out by the blast furnace gas; the wear resistance refers to the amount of coke powder less than 1...

Claims

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Application Information

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IPC IPC(8): G01N33/22
CPCG01N33/222
Inventor 张文成张小勇郑明东张代林
Owner ANHUI UNIVERSITY OF TECHNOLOGY