Environment-friendly water-base automatic-flowing fettling material and preparation method thereof

A furnace charging and environment-friendly technology, applied in the field of unshaped refractory materials, can solve the problems of health impact of workers, pollution of the on-site workshop environment, intolerant of slag erosion, etc. good effect

Inactive Publication Date: 2018-03-06
JIAOZUO JINXIN HENGTUO REFRACTORIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] No matter what kind of organic binder is inevitable: after the organic matter is burned out, the material has many pores and poor compactness, which leads to intolerant slag erosion, low strength, and short service life; at the same time, a large amount of yellow harmful smoke generated by the organic binder is serious. It pollutes the workshop environment on site and has a very bad impact on the health of the workers in the steel plant, and it needs to be accompanied by a shaking furnace during the construction process, which takes a long time to sinter and makes the construction difficult to operate

Method used

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  • Environment-friendly water-base automatic-flowing fettling material and preparation method thereof
  • Environment-friendly water-base automatic-flowing fettling material and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0037] This example is used to illustrate the environment-friendly water-based self-flowing furnace charge and its preparation method of the present invention.

[0038] The environmentally friendly water-based self-flowing furnace charge contains the following components by weight percentage: 30% of mid-grade sintered magnesia, 20% of 97 fused magnesia, 15% of 98 fused magnesia, 6% of silicon micropowder, 5% of white carbon black %, 98 metal silicon 6%, activated alumina micropowder 7%, alumina silica sol 8.5%, SD 80 1%, lignin 1.5%; And the percentage by weight of middle-grade sintered magnesia is: 5-3mm 30%; 3-1mm 35%; The weight percent of 97 fused magnesia is: 5-3mm 20%; 3-1mm 35%; 1-0mm 45%; the particle size of the 98 fused magnesia is: 250 mesh.

[0039] The preparation method comprises the following steps:

[0040] Use a forced concrete mixer to mix the above materials. The order of feeding is to mix the mid-grade sintered magnesia, 97 fused magnesia, 98 fused magnes...

Embodiment 2

[0042] This example is used to illustrate the environment-friendly water-based self-flowing furnace charge and its preparation method of the present invention.

[0043] The environmentally friendly water-based self-flowing furnace charge contains the following components by weight percentage: mid-grade sintered magnesia 15%, 97 fused magnesia 28%, 98 fused magnesia 19%, silicon micropowder 8%, white carbon black 3 %, 98 metal silicon 8%, activated alumina micropowder 6%, alumina silica sol 10%, SD 80 1%, lignin 2%; And the percentage by weight of medium-grade sintered magnesia is: 5-3mm 15%; 3-1mm 45%; The weight percent of 97 fused magnesia is: 5-3mm 15%; 3-1mm 45%; 1-0mm 40%; the particle size of the 98 fused magnesia is: 250 mesh.

[0044] The preparation method comprises the following steps:

[0045]Use a forced concrete mixer to mix the above materials. The order of feeding is to mix the mid-grade sintered magnesia, 97 fused magnesia, 98 fused magnesia, silicon micropow...

Embodiment 3

[0047] This example is used to illustrate the environment-friendly water-based self-flowing furnace charge and its preparation method of the present invention.

[0048] The environmentally friendly water-based self-flowing furnace charge contains the following components by weight percentage: 35% of mid-grade sintered magnesia, 20% of 97 fused magnesia, 15% of 98 fused magnesia, 5% of silicon micropowder, 3% of white carbon black %, 98 metal silicon 6%, activated alumina micropowder 6%, aluminum silica sol 6%, SD 80 1%, lignin 3%; And the percentage by weight of medium-grade sintered magnesia is: 5-3mm 15%; 3-1mm 45%; The weight percent of 97 fused magnesia is: 5-3mm 30%; 3-1mm 35%; 1-0mm 35%; the particle size of the 98 fused magnesia is: 250 mesh.

[0049] The preparation method comprises the following steps:

[0050] Use a forced concrete mixer to mix the above materials. The order of feeding is to mix the mid-grade sintered magnesia, 97 fused magnesia, 98 fused magnesia,...

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Abstract

The invention discloses an environment-friendly water-base automatic-flowing fettling material and a preparation method of the fettling material. The fettling material comprises the following components: 5-50% of middle-grade magnesite clinker, 10-45% of 97 fused magnesite, 10-30% of 98 fused magnesite, 4-9% of silicon micropowder, 2-6% of white carbon black, 5-8% of metallic silicon, 5-8% of activated alumina micropowder, 6-15% of aluminum silica sol, 0.5-2% of SD80 and 1-3% of lignin, wherein the middle-grade magnesite clinker is graded by three particles: 10-40% of 5-3mm, 20-60% of 3-1mm and 30-60% of 1-0mm; the 97 fused magnesite is graded by three particles: 10-40% of 5-3mm, 15-50% of 3-1mm and 15-60% of 1-0mm; and the particle size of the 98 fused magnesite is 180-320 meshes. The fettling material is good in flowability, short in sintering time, good in erosion resistance and long in service life.

Description

technical field [0001] The invention belongs to the field of unshaped refractory materials, and in particular relates to an environment-friendly water-based self-flowing furnace charge and a preparation method of the environment-friendly water-based self-flowing furnace charge. Background technique [0002] At present, with the continuous integration and rapid development of my country's iron and steel industry, the coordination of re-expansion of production of iron and steel enterprises and the relationship between environmental protection, energy and society has gradually become a key issue. [0003] The converter is at the center of the steelmaking process and is one of the main equipment in the steel plant. The lining of the steelmaking converter is mainly made of magnesia carbon bricks. During the steelmaking process, the refractories on the charging side, tapping side and furnace bottom of the converter are in a high temperature state for a long time, and are subjected...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/043
CPCC04B35/043C04B2235/3217C04B2235/3418C04B2235/428C04B2235/77C04B2235/96
Inventor 徐德亭黄江文沈万林薛鸿雁韩奇生李超陈瑞金彭德江程明亮李军王小波
Owner JIAOZUO JINXIN HENGTUO REFRACTORIES
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