Preparation method of waterless stemming used for maintaining blast furnace hearth

A technology for blistering mud and blast furnace furnace, which is applied in the field of blast furnace refractory materials, can solve the problems of polluted environment, poor use performance of poppet mud, and high production cost, and achieves the effects of good opening performance, not easy to agglomerate, and improved fluidity.

Active Publication Date: 2013-02-13
临沂恒元城市建设运营有限公司
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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 blast furnace clay is polluting the environment, and the configured clay has poor performance and high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Example 1

[0028] The non-water foaming mud used to maintain the hearth of the blast furnace in this embodiment is composed of refractory aggregate and binder, wherein the mass ratio of refractory aggregate to binder is 100:14. The components of the refractory aggregate in this embodiment are composed of the following parts by mass: 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, and blast furnace gas 7 parts ash, 10 parts coke. In this embodiment, the components of the binder are composed of the following parts by mass: 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.

[0029] In this embodiment, a method for preparing water-free foamed mud for maintaining the hearth of a blast furnace has specific steps as follows:

[0030] (1) Preparation of refrac...

Example Embodiment

[0037] Example 2

[0038] The non-water foaming mud used to maintain the hearth of a blast furnace in this embodiment is composed of refractory aggregates and binders, wherein the mass ratio of refractory aggregates to binders is 100:13. The components of the refractory aggregate in this embodiment are composed of the following parts by mass: 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, and blast furnace gas 6 parts ash, 11 parts coke. In this embodiment, the components of the binder are composed of the following parts by mass: 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.

[0039] In this embodiment, a method for preparing water-free foamed mud for maintaining the hearth of a blast furnace has specific steps as follows:

[0040] (1) Preparation of ref...

Example Embodiment

[0047] Example 3

[0048] The non-water foaming mud used to maintain the hearth of the blast furnace in this embodiment is composed of refractory aggregate and binder, wherein the mass ratio of refractory aggregate and binder is 100:15. The components of the refractory aggregate in this embodiment are composed of the following parts by mass: 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, and blast furnace gas 8 parts ash, 9 parts coke. In this embodiment, the components of the binder are composed of the following parts by mass: 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.

[0049] In this embodiment, a method for preparing water-free foamed mud for maintaining the hearth of a blast furnace has specific steps as follows:

[0050] (1) Preparation of refrac...

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Abstract

The invention discloses a preparation method of waterless stemming used for maintaining blast furnace hearth, belonging to the field of the refractory material used for the blast furnace. The method comprises the following steps: (1) preparation of a refractory aggregate by using 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 residue, 6-8 parts of blast furnace gas ash and 9-11 parts of coke are weighed, added into a mixer in sequence, and then mixed for 10-12 minutes; (2) preparation of a binder; (3) the binder is added into the refractory aggregate at a mass ratio of the refractory aggregate to the binder being 100:13-15 to obtain a mixture, and the mixture is continuously mixed and stirred for 30-35 minutes to obtain a mixed substance; and (4) the mixed substance is extruded by an extruder to form a massive substance and then packaged to obtain the final product. The waterless stemming prepared by the method provided by the invention has good opening performance and moderate plasticity, is resistant to the scour corrosion of the high-temperature iron slag, can 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, in particular to a method for preparing water-free foam mud used for maintaining blast furnace hearths. 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. The former is used in medium and small blast furnaces with low top pressure and low degree of intensified smelting, while the latter 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 ma...

Claims

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Application Information

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IPC IPC(8): C04B35/66C04B24/40
Inventor 高金菊
Owner 临沂恒元城市建设运营有限公司
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