CN1355151A - Air-permeable material for repairing furnace - Google Patents
Air-permeable material for repairing furnace Download PDFInfo
- Publication number
- CN1355151A CN1355151A CN 00131181 CN00131181A CN1355151A CN 1355151 A CN1355151 A CN 1355151A CN 00131181 CN00131181 CN 00131181 CN 00131181 A CN00131181 A CN 00131181A CN 1355151 A CN1355151 A CN 1355151A
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- China
- Prior art keywords
- air
- furnace
- permeable material
- steel
- repairing furnace
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Abstract
An air-permeable furnace repairing material as refractory for smelting steel is disclosed. A alyer of the said material can be used to cover the upper part of the bottom air-permeable bricks of a converter for protecting the furnace bottom and air-permeable bricks without influence to normal gas supply.
Description
Air-permeable material for repairing furnace belongs to the steel-making refractory materials.At present, the application of converter lining protection technology by slag splashing, furnace life has reached gratifying degree.But furnace life because furnace bottom thickens or the furnace bottom gas permeable brick stops up, makes to make most important converter bottom blowing afunction [C] [O] improve, thereby can not smelt high-quality steel grade after improving.Therefore, in order to guarantee the top and bottom complex blowing function, to smelt high-quality steel grade, have to give up converter lining protection technology by slag splashing, reduce life of converter such as these famous steel mills of Nippon Steel.So, can the both take into account simultaneously?
Core of the present invention is after having refined steel, with the oxygen rifle gas permeable brick is produced by boasting, fill this material after, can protect furnace bottom, can keep the work of gas permeable brick again, and not influence the normal running of splashing slag in converter.
The main thought of air-permeable material for repairing furnace is to add composite additive, makes to expect can produce the perforation pore behind the sintering, can gas-pervious effect thereby reach.Proportioning raw materials such as following table:
Employing adds the method for throwing the repairing furnace bottom after water stirs and has tested 50 tons of material in Wuhan Iron and Steel Plant three steel-making, and effect is remarkable.Stove stove [C] [O] amasss≤0.003, produces a desired effect substantially.At present, enter the technical specialist of Wuhan Iron and Steel Plant company and evaluate the stage, and apply.
| Material name | Electrosmelted magnesite clinker | The magnesium chromium powder | Tripoly phosphate sodium STPP | The silicon ash | Composite additive |
| Content (%) | ????76 | ????10 | ????3 | ????2.5 | ????8.5 |
Claims (1)
- The weight percent proportioning components that it is characterized in that it is: electrosmelted magnesite clinker 76%, magnesium chromium powder 10%, tripoly phosphate sodium STPP 3%, silicon ash 2.5%, composite additive 8.5% mix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00131181 CN1355151A (en) | 2000-11-28 | 2000-11-28 | Air-permeable material for repairing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00131181 CN1355151A (en) | 2000-11-28 | 2000-11-28 | Air-permeable material for repairing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1355151A true CN1355151A (en) | 2002-06-26 |
Family
ID=4594530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00131181 Pending CN1355151A (en) | 2000-11-28 | 2000-11-28 | Air-permeable material for repairing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1355151A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387732C (en) * | 2006-02-14 | 2008-05-14 | 东北大学 | Harmless resource utilization method for chromic slag |
| CN100542993C (en) * | 2007-11-12 | 2009-09-23 | 攀钢集团攀枝花钢铁研究院 | A kind of refractory repairing mass with the carbonized high-titanium blast furnace slag preparation |
| CN102557688A (en) * | 2012-01-06 | 2012-07-11 | 淄博工陶耐火材料有限公司 | Preparation method for isostatic pressure calcium-aluminum-silicon tin bath bottom brick |
-
2000
- 2000-11-28 CN CN 00131181 patent/CN1355151A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387732C (en) * | 2006-02-14 | 2008-05-14 | 东北大学 | Harmless resource utilization method for chromic slag |
| CN100542993C (en) * | 2007-11-12 | 2009-09-23 | 攀钢集团攀枝花钢铁研究院 | A kind of refractory repairing mass with the carbonized high-titanium blast furnace slag preparation |
| CN102557688A (en) * | 2012-01-06 | 2012-07-11 | 淄博工陶耐火材料有限公司 | Preparation method for isostatic pressure calcium-aluminum-silicon tin bath bottom brick |
| CN102557688B (en) * | 2012-01-06 | 2013-08-14 | 淄博工陶耐火材料有限公司 | Preparation method for isostatic pressure calcium-aluminum-silicon tin bath bottom brick |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |