Coke modifier and its preparation method and coke modification method

A technology of modifier and coke, which is applied in the field of coke modification and coke modification in blast furnace ironmaking. It can solve the problem of poor ability to resist chemical erosion and maintain the skeleton of the material column, and the quality of coke that affects the production index of the blast furnace with the amount of coal injection. To achieve the effect of reducing the load of dust removal equipment, increasing the strength after reaction, and reducing reactivity

Active Publication Date: 2020-05-19
河北金百祥科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the quality of coke in most iron and steel plants in my country is relatively poor, and the ability to resist chemical erosion and maintain the skeleton effect of the material column is relatively poor, which seriously affects the amount of coal injection and the production index of the blast furnace.

Method used

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  • Coke modifier and its preparation method and coke modification method
  • Coke modifier and its preparation method and coke modification method
  • Coke modifier and its preparation method and coke modification method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] The coke modifier provided in Example 1 includes the following raw materials in parts by weight: 7.0 parts of boron oxide, 2.0 parts of sodium silicate and 1.0 part of polyacrylamide.

[0058] The preparation method: uniformly mix the raw materials according to parts by weight to obtain the coke modifier.

Embodiment 2

[0060] The coke modifier provided in Example 2 includes the following raw materials in parts by weight: 6.0 parts of boron oxide, 1.5 parts of montmorillonite and 0.8 parts of polyacrylamide.

[0061] The preparation method: uniformly mix the raw materials according to parts by weight to obtain the coke modifier.

Embodiment 3

[0063] The coke modifier provided in Example 3 includes the following raw materials in parts by weight: 8.0 parts of boron oxide, 1.0 parts of sodium silicate, 1.5 parts of montmorillonite and 1.2 parts of polyacrylamide.

[0064] The preparation method: uniformly mix the raw materials according to parts by weight to obtain the coke modifier.

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Abstract

The invention relates to the technical field of the coke modification in the blast furnace ironmaking and in particular to a coke modifier and a preparation method and a coke modifying method thereof. The provided coke modifier comprises boric oxide, silicate and polyacrylamide. The coke modifier is capable of slowing down the solution loss reaction of the coke, reducing the coke reactivity, and improving the post-reaction strength. The provided coke modifying method has the characteristics of simple process and convenient operation, is capable of reducing the coke reactivity, improving the post-reaction strength, and improving the permeability of a blast furnace. In addition, the pulverization of the coke is reduced, the effects of saving energy and reducing consumption can be realized, the load of a dedusting device is reduced, the service life of the device is prolonged, and the coke modifier can be extensively used for the blast furnace smelting industry.

Description

technical field [0001] The invention relates to the technical field of coke modification in blast furnace ironmaking, in particular to a coke modifier, a preparation method thereof and a coke modification method. Background technique [0002] Coke is an important metallurgical energy source, which plays the role of heat source, reducing agent, charge skeleton and carbon supply in the blast furnace ironmaking process. With the strengthening and popularization of blast furnace tuyere coal injection technology, the functions of heat source, reducing agent and carbon supply can be replaced by pulverized coal injection to varying degrees, but the role of the loose skeleton supporting the furnace charge is irreplaceable. Internal air permeability and liquid permeability have an important influence on the technical and economic indicators of blast furnace smelting and blast furnace smelting, and even restrict the development of blast furnace ironmaking. [0003] The anatomical dat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B57/06
CPCC10B57/06
Inventor 田俊仿
Owner 河北金百祥科技有限公司
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