Binder for blast furnace clay and blast furnace clay

A technology of binder and clay, which is applied in the field of high-temperature refractory materials, can solve the problems of poor quality of blast furnace clay, and achieve the effects of reducing porosity, promoting mutual fusion, and improving compactness of blast furnace clay

Active Publication Date: 2019-06-21
XUZHOU SUPAI HIGH TEMPERATURE NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of poor quality of binder for blast furnace clay and blast furnace clay in the prior art, the present invention provides a binder for blast furnace clay with fast sintering speed, corrosion resistance, erosion resistance, moderate cost, environmental protection and smoke-free and blast furnace clay

Method used

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  • Binder for blast furnace clay and blast furnace clay
  • Binder for blast furnace clay and blast furnace clay
  • Binder for blast furnace clay and blast furnace clay

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The binder for blast furnace mud of the present invention comprises the following components by mass: 40 parts of coal tar still bottoms, 60 parts of phenolic novolac resin, and 2 parts of external surfactants, wherein the method for obtaining the coal tar still bottoms The method is as follows: add coal tar to a high-temperature ceramic reaction kettle, heat and stir at 230° C. for 1.5 hours, and obtain the bottom of the coal tar distillation kettle after reaction and degassing. The coking value of the coal tar still bottoms was 37%. The free phenol content of the novolac resin is less than 9%, the coking value is greater than 29%, and the moisture content is less than 3%. Surfactant is made up of active agent and alcohols, and active agent is stearic acid, and alcohols is ethylene glycol.

[0022] The binder for blast furnace clay is prepared by the following method: mix the above-mentioned coal tar distillation still bottom, novolac resin, and surfactant in a set ra...

Embodiment 2

[0026] The binder for blast furnace clay of the present invention comprises the following components by mass: 70 parts of coal tar still bottoms, 30 parts of phenolic novolac resin, and 3 parts of external surfactants, wherein the method for obtaining the coal tar still bottoms The method is as follows: add coal tar to a high-temperature ceramic reaction kettle, heat and stir at 230° C. for 2 hours, and obtain the bottom of the coal tar distillation kettle after reaction and degassing. The coking value of the coal tar still bottoms was 40%. The free phenol content of the novolac resin is less than 9%, the coking value is greater than 29%, and the moisture content is less than 3%. Surfactant is made up of active agent and alcohols, and active agent is sodium dodecylbenzene sulfonate, and alcohols is glycerol.

[0027] The binder for blast furnace mud is prepared by the following method: mix the above-mentioned coal tar distillation still bottom, novolak resin, and surfactant i...

Embodiment 3

[0031] The binder for blast furnace clay of the present invention comprises the following components by mass: 60 parts of coal tar still bottoms, 40 parts of phenolic novolak resin, and 3 parts of external surfactants, wherein the method for obtaining the coal tar still bottoms The method is as follows: add coal tar to a high-temperature ceramic reaction kettle, heat and stir at 230° C. for 2 hours, and obtain the bottom of the coal tar distillation kettle after reaction and degassing. The coking value of the coal tar still bottoms was 42%. The free phenol content of the novolac resin is less than 9%, the coking value is greater than 29%, and the moisture content is less than 3%. Surfactant is made up of active agent and alcohols, and active agent is lecithin, and alcohols is ethylene glycol.

[0032] The binder for blast furnace mud is prepared by the following method: mix the above-mentioned coal tar distillation still bottom, novolak resin, and surfactant in a set ratio by...

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Abstract

The invention discloses a binding agent for a blast furnace stemming and the blast furnace stemming. The binding agent is prepared from, by mass, 40-70 parts of coal tar distillation kettle substrate, 30-60 parts of novolac resin and 2-5 parts of surfactant, wherein a preparation method of the coal tar distillation kettle substrate is comprises the steps that coal tar is added to a high-temperature ceramic reaction kettle, heating and stirring are performed at the temperature of 230 DEG C for 1.5-2.5 hours, and the coal tar distillation kettle substrate is obtained after reaction and degassing. A blast furnace stemming material needs additional 12-17.5 parts of binding agent. The blast furnace stemming made from the binding agent and the blast furnace stemming material is environmentally friendly, smokeless and outstanding in durability effect, really protect refractory bricks at the lower portion of a tap hole, and accordingly the service life of a blast furnace is prolonged. The blast furnace stemming made from the binding agent and the blast furnace stemming material is high in sintering speed, is resistant to erosion and scouring, is environmentally friendly and smokeless, can completely replace imported products and has the important significance on supporting of energy saving and environmental protection of the iron-making industry in our country, prolonging of the service life of blast furnaces and technical progress.

Description

technical field [0001] The invention belongs to the field of high-temperature refractory materials, and in particular relates to a binder for blast furnace clay and blast furnace clay materials. Background technique [0002] my country's iron and steel production capacity accounts for about 50% of the world's total, and the task of reducing production capacity and energy conservation and emission reduction is arduous. The blast furnace is the main equipment for ironmaking production. When the molten iron slag is discharged from the blast furnace, the blast furnace mud is filled in the taphole to maintain a sufficient depth; when the blast furnace is discharged with iron slag, the center of the blast furnace mud in the taphole is drilled out of the hole, and the molten iron slag is discharged out of the furnace through the tunnel . During the ironmaking process, the taphole of the blast furnace needs to be repeatedly drilled and filled. Hot molten iron and slag have physical...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
CPCC04B35/66
Inventor 吴树全
Owner XUZHOU SUPAI HIGH TEMPERATURE NEW MATERIAL CO LTD
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