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Anhydrous stemming for blast furnace tapping hole

A technology of waterless taphole mud and blast furnace iron tapping, which is applied in the field of refractory materials for blast furnaces, can solve the problems of high production cost, environmental pollution, poor performance of taphole mud, etc., and achieve good opening performance, good thermal stability, and not easily bonded block effect

Active Publication Date: 2013-08-14
ANHUI SAFE ELECTRONICS
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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 binder used for blast furnace clay in the prior art that pollutes the environment, and the configured mold clay has poor performance and high production costs, and provides a water-free blast furnace clay for taphole, The gun clay of the present invention has good plasticity and good opening performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] An anhydrous taphole clay for a blast furnace taphole in this embodiment is composed of refractory aggregate and a binder, wherein the mass ratio of the refractory aggregate to the binder is 100:14. In this example, the components of refractory aggregate are composed according to the following mass parts: 13 parts of titanium dioxide, 4 parts of titanium carbide, 23 parts of corundum, 16 parts of silicon carbide, 35 parts of mullite, 6 parts of calcium-free chromium slag, blast furnace gas Ash 7 parts, coke 10 parts. In this embodiment, the components of the binder are composed in parts by mass as follows: 43 parts of asphalt, 5 parts of hydrogenated terphenyl, 11 parts of silicone resin, 9 parts of furan resin, and 14 parts of melamine formaldehyde resin.

[0051] A kind of anhydrous taphole mud of the present embodiment is used for blast furnace taphole, and its specific preparation method is as follows:

[0052] (1) Preparation of refractory aggregate:

[0053] Wei...

Embodiment 2

[0060] An anhydrous taphole clay for a blast furnace taphole in this embodiment is composed of refractory aggregate and a binder, wherein the mass ratio of the refractory aggregate to the binder is 100:13. In this example, the components of refractory aggregate are composed according to the following mass parts: 12 parts of titanium dioxide, 5 parts of titanium carbide, 20 parts of corundum, 18 parts of silicon carbide, 30 parts of mullite, 7 parts of calcium-free chromium slag, blast furnace gas Ash 6 parts, coke 11 parts. In this embodiment, the components of the binder are composed in parts by mass as follows: 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.

[0061] A kind of anhydrous taphole mud of the present embodiment is used for blast furnace taphole, and its specific preparation method is as follows:

[0062] (1) Preparation of refractory aggregate:

[0063] We...

Embodiment 3

[0070] An anhydrous taphole clay for a blast furnace taphole in this embodiment is composed of refractory aggregate and a binder, wherein the mass ratio of the refractory aggregate to the binder is 100:15. In this example, the components of refractory aggregate are composed according to the following mass parts: 14 parts of titanium dioxide, 3 parts of titanium carbide, 25 parts of corundum, 15 parts of silicon carbide, 38 parts of mullite, 5 parts of calcium-free chromium slag, blast furnace gas 8 parts of ash, 9 parts of coke. In this embodiment, the components of the binder are 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.

[0071] A kind of anhydrous taphole mud of the present embodiment is used for blast furnace taphole, and its specific preparation method is as follows:

[0072] (1) Preparation of refractory aggregate:

[0073...

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Abstract

The invention discloses anhydrous stemming for a blast furnace tapping hole, belonging to the technical field of refractory material for blast furnaces. The anhydrous stemming for a blast furnace tapping hole disclosed by the invention is composed of refractory aggregate and bonding agent, wherein the refractory aggregate comprises the following components in parts by mass: 12-14 parts of titanium dioxide, 3-5 parts of titanium carbide, 20-25 parts of corundum, 15-18 parts of silicon carbide, 30-38 parts of mullite, 5-7 parts of calcium-free chromium slag, 6-8 parts of blast furnace gas ash, and 9-11 parts of coke; and the bonding agent comprises the following components in parts by mass: 40-50 parts of asphalt, 4-6 parts of hydrogenated terphenyl, 10-12 parts of organic silicon resin, 8-11 parts of furan resin, and 11-15 parts of melamine-formaldehyde resin, wherein the mass ratio of the refractory aggregate to the bonding agent is 100:13-15. The anhydrous stemming disclosed by the invention has good opening performance, moderate plasticity, can resist scouring and erosion of high-temperature iron slag, does not pollute the environment, and is low in production cost.

Description

technical field [0001] The invention relates to the technical field of refractory materials for blast furnaces, and more specifically relates to an anhydrous taphole mud for blast furnace tapholes. Background technique [0002] Crack clay is a refractory material used to block the taphole. At present, it can be divided into two categories: water clay and anhydrous clay. Water is used as a binder. Materials used as binders are called anhydrous taphole mud. Water-filled taphole clay is used in medium and small blast furnaces with low top pressure and low degree of intensified smelting; waterless taphole clay is used in large and medium-sized blast furnaces with high top pressure and high degree of intensified smelting. The composition of blast clay can be divided into two parts: refractory aggregate and binder. Refractory aggregate refers to refractory raw materials such as corundum, mullite, and coke gems, and modified materials such as coke and mica. The binder is organic...

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 ANHUI SAFE ELECTRONICS
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