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Bonding agent for stemming of large-scale blast furnace

A binder and blast furnace technology, which is applied in the field of blast furnace clay, can solve the problems of environmental pollution and poor performance of clay, and achieve the effect of good opening performance, not easy to agglomerate, and good thermal stability

Inactive Publication Date: 2013-11-27
卫勤玲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the disadvantages of the prior art that the binder used for large-scale blast furnace clay is polluting the environment, and the poor performance of the configured clay is provided, and a binder for large-scale blast furnace clay is provided, which is configured by adding the binder of the present invention. Gun clay, which makes it have good plasticity and good opening performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A binder for large-scale blast furnace clay in this embodiment, each component is composed of the following mass parts: 40 parts of asphalt, 6 parts of hydrogenated terphenyl, 10 parts of silicone resin, 11 parts of furan resin, and 11 parts of melamine formaldehyde resin. Among them, the furan resin is furfuryl alcohol resin; the asphalt is petroleum asphalt, and the asphaltenes in the petroleum asphalt can be 25% to 30%.

[0031] A kind of preparation method of binder for large-scale blast furnace clay of the present embodiment, its steps are:

[0032] (1) Weigh 40 parts of asphalt and 6 parts of hydrogenated terphenyl in parts by mass, add the asphalt and hydrogenated terphenyl to the reaction kettle in turn, and stir and mix at a temperature of 55°C for 20 minutes;

[0033] (2) Weigh 10 parts of silicone resin, 11 parts of furan resin and 11 parts of melamine formaldehyde resin in parts by mass. Control the heating rate of the reactor in step (1) to 3°C / min. When th...

Embodiment 2

[0035] A binder for large-scale blast furnace clay in this embodiment, each component is composed in parts by mass as follows: 50 parts of asphalt, 4 parts of hydrogenated terphenyl, 12 parts of silicone resin, 8 parts of furan resin, and 15 parts of melamine formaldehyde resin.

[0036] A method for preparing a binder for large-scale blast furnace clay of the present embodiment, the steps are:

[0037] (1) Weigh 50 parts of asphalt and 4 parts of hydrogenated terphenyl in parts by mass, add the asphalt and hydrogenated terphenyl to the reaction kettle in turn, and stir and mix at a temperature of 60°C for 20 minutes;

[0038] (2) Weigh 12 parts of silicone resin, 8 parts of furan resin and 15 parts of melamine formaldehyde resin in parts by mass, and control the heating rate of the reactor in step (1) to 4°C / min. When the temperature of the reactor reaches 76°C Finally, sequentially add silicone resin, furan resin and melamine formaldehyde resin to the reaction kettle, and co...

Embodiment 3

[0040] A binder for large-scale blast furnace clay in this embodiment, each component is composed of the following parts by mass: 45 parts of asphalt, 5 parts of hydrogenated terphenyl, 11 parts of silicone resin, 9 parts of furan resin, and 13 parts of melamine formaldehyde resin.

[0041] A method for preparing a binder for large-scale blast furnace clay of the present embodiment, the steps are:

[0042] (1) Weigh 45 parts of asphalt and 5 parts of hydrogenated terphenyl in parts by mass, add the asphalt and hydrogenated terphenyl to the reaction kettle in turn, and stir and mix at a temperature of 58°C for 20 minutes;

[0043] (2) Weigh 11 parts of silicone resin, 9 parts of furan resin and 13 parts of melamine formaldehyde resin in parts by mass. Control the heating rate of the reactor in step (1) to 3.5°C / min. When the temperature of the reactor reaches 74°C Finally, sequentially add silicone resin, furan resin and melamine formaldehyde resin to the reaction kettle, and c...

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Abstract

The invention discloses a bonding agent for stemming of a large-scale blast furnace, belonging to the technical field of stemming of a blast furnace. The bonding agent for stemming of the large-scale blast furnace comprises the following components in parts by mass: 40 to 50 parts of asphalt, 4 to 6 parts of hydrogenated terphenyl, 10 to 12 parts of organic silicon resin, 8 to 11 parts of furan resin and 11 to 15 parts of melamine formaldehyde resin, wherein the furan resin is furfuryl alcohol resin; the asphalt is petroleum asphalt, wherein the earth asphaltene in the petroleum asphalt is of 25 to 30%. According to the bonding agent disclosed by the invention, the organic silicon resin, the furan resin and the melamine formaldehyde resin are compounded to be served as the component of the curing agent, and moreover, the hydrogenated terphenyl is served as the synergist, thus high plasticity can be obtained, and low curing rate is ensured; reduction of the curing rate of the bonding agent is beneficial for improving the liquidity of the stemming at high temperature, therefore, the stemming is hardly blocked in a mud gun; if the bonding agent disclosed by the invention is added for preparing the stemming, the stemming has good performance on opening; and moreover, the bonding agent has resistance to scouring and eroding of high-temperature scrap iron in slag, and has no pollution to the environment.

Description

technical field [0001] The invention relates to the technical field of blast furnace clay, in particular to a binder for large-scale blast furnace clay. Background technique [0002] Blast furnace is the main equipment for ironmaking production. Compared with other ironmaking equipment, it has the characteristics of large output, high yield and low production cost. With the rapid development of the iron-making industry, the blast furnace is gradually developing towards the direction of long life, intensified smelting and large-scale, which has higher and higher requirements for the quality of blast furnace clay. When the blast furnace does not produce molten iron slag, the blast furnace mud is filled in the tap hole to maintain a sufficient depth; when the blast furnace taps iron, the center of the blast furnace mud in the tap hole is drilled out of the tunnel, and the molten iron slag is discharged out of the furnace through the tunnel. During the ironmaking process, the t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
Inventor 高金菊
Owner 卫勤玲
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