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Superior-performance blast furnace connector material

A joint material and performance technology, applied in the field of high-performance blast furnace joint materials and castables, can solve the problems that cannot meet the needs of blast furnace safety smelting and environmental protection, etc., to achieve enhanced plasticity and high temperature resistance, construction performance, and improved corrosion resistance , the effect of excellent fire resistance

Inactive Publication Date: 2017-05-31
XINCHANG JINYU DECORATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the main ditch joint ramming material combined with resin and asphalt can no longer meet the needs of safe smelting and environmental protection of blast furnaces.

Method used

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  • Superior-performance blast furnace connector material
  • Superior-performance blast furnace connector material
  • Superior-performance blast furnace connector material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] In embodiment 1, select corresponding raw material according to the chemical composition mass percentage of main raw material shown in table 1, wherein 45 parts of brown corundum fine powders, 12 parts of silicon carbides, 8 parts of activated alumina micropowders, 3 parts of silicon micropowders, 2 parts of graphite, 3 parts of nano-carbon powder, 22 parts of kaolin, 3 parts of calcium aluminate cement, 1 part of water reducer, 1 part of antioxidant, and combine each component with an additional 5 parts of anhydrous high-temperature-resistant binder, brown corundum Fine powder, activated alumina micro-powder, and silicon micro-powder are firstly mixed evenly in a mixer for 10 minutes, then silicon carbide, graphite, kaolin, calcium aluminate cement, appropriate amount of water reducing agent and antioxidant are put into the mixer and mixed evenly. And add a certain amount of anhydrous high-temperature resistant binder into the mixer to fully and evenly combine the chemi...

Embodiment 2

[0020] In embodiment 2, select corresponding raw material according to the chemical composition mass percentage of main raw material shown in table 1, wherein 42 parts of brown corundum fine powder, 13 parts of silicon carbide, 6 parts of activated alumina micropowder, 3 parts of silicon micropowder, 2 parts of graphite, 2 parts of nano-carbon powder, 27 parts of kaolin, 3 parts of calcium aluminate cement, 1.5 parts of water reducer, 0.5 parts of antioxidant, and combine each component with an additional 6 parts of anhydrous high-temperature resistant binder, brown corundum Fine powder, activated alumina micro-powder, and silicon micro-powder are firstly mixed evenly in a mixer for 10 minutes, then silicon carbide, graphite, kaolin, calcium aluminate cement, appropriate amount of water reducing agent and antioxidant are put into the mixer and mixed evenly. And add a certain amount of anhydrous high-temperature resistant binder into the mixer to fully and evenly combine the che...

Embodiment 3

[0021] In embodiment 3, select corresponding raw material according to the chemical composition mass percentage of main raw material shown in table 1, wherein 38 parts of brown corundum fine powders, 14 parts of silicon carbides, 7 parts of activated alumina micropowders, 3 parts of silicon micropowders, 2 parts of graphite, 4 parts of nano carbon powder, 24.5 parts of kaolin, 4 parts of calcium aluminate cement, 2 parts of water reducer, 1.5 parts of antioxidant, and combine each component with an additional 7 parts of anhydrous high temperature resistant binder, brown corundum Fine powder, activated alumina micro-powder, and silicon micro-powder are firstly mixed evenly in a mixer for 10 minutes, then silicon carbide, graphite, kaolin, calcium aluminate cement, appropriate amount of water reducing agent and antioxidant are put into the mixer and mixed evenly. And add a certain amount of anhydrous high-temperature resistant binder into the mixer to fully and evenly combine the...

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Abstract

The invention discloses a superior-performance blast furnace connector material. The superior-performance blast furnace connector material is prepared by combining, by weight, 20-50 parts of brown corundum powder, 10-15 parts of silicon carbide, 5-10 parts of reactive alumina fine powder, 1-4 parts of silica powder, 1-3 parts of graphite, 2-5 parts of nanometer carbon powder, 15-30 parts of kaolin, 1-5 parts of calcium aluminate cement, 1-3 parts of a water reducer and 1-3 parts of an antioxidant with extra added 5-8 parts of a no-water and high-temperature binding agent. By the arrangement that brown corundum is added to the connector material in ingredient, the brown corundum has the advantages of good crystallization, strong liquidity, low linear expansion coefficient, corrosion resistance and no crack, and good physical and chemical properties and corrosion resistance and safety performance of the connector material are achieved; the kaolin added to the connector material has good plasticity and fire resistance, so that plasticity of the connector material is enhanced.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of castables, in particular to the technical field of high-performance blast furnace joint materials. [0003] 【Background technique】 [0004] The original main groove joint material is Al 2 o 3 -SiC-C ramming material, due to the limitations of the ramming material itself, does not have a long service life without the main channel, and the consumption of iron refractory per ton is much higher than that of the main channel. The joint material uses phenolic resin or asphalt as a binder, which will decompose and release harmful gases containing phenol, formaldehyde, BaP and other toxic substances during construction and use, which will seriously pollute the environment and be harmful to the health of operators. If the material is stored for a long time, the material will harden due to the resin combination, and the construction will be more troublesome. If the main ditch is overcast, and the tapping ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
CPCC04B35/66C04B2235/77C04B2235/96C04B2235/9669
Inventor 单建峰
Owner XINCHANG JINYU DECORATION CO LTD
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