CN1232470C - Bake-free iron runner ramming mass containing ferrosilicon nitride - Google Patents
Bake-free iron runner ramming mass containing ferrosilicon nitride Download PDFInfo
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- CN1232470C CN1232470C CN 200310113597 CN200310113597A CN1232470C CN 1232470 C CN1232470 C CN 1232470C CN 200310113597 CN200310113597 CN 200310113597 CN 200310113597 A CN200310113597 A CN 200310113597A CN 1232470 C CN1232470 C CN 1232470C
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- iron runner
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Abstract
The present invention provides a baking-free iron runner ramming material which contains nitride ferric silicon. The present invention is composed of aluminium silicate materials, silicon carbide, carbon materials, nitride ferric silicon and binding agents. The present invention is characterized in that the present invention comprises the components of the following proportion by weight: 43 to 80% of aluminium silicate materials, 7 to 25% of silicon carbide, 2 to 10% of carbon materials, 5 to 15% of nitride ferric silicon, 0 to 4% of Si powder and 0 to 3% of Al powder, and on the basis of the mixture, 2 to 7% of phenolic resin is added. The present invention has the advantages that the high temperature strength, the high temperature dross erosion resistance and the permeability of the ramming material are enhanced, and the oxidation resistance of the material is enhanced at the same time.
Description
Technical field
The invention belongs to iron runner or slag runner working lining materials in the blast furnace ironmaking, a kind of Al of nitrogen ferrosilicon particularly is provided
2O
3-SiC-C system ramming mass.
Technical background
Blast furnace iron runner, slag runner ditch lining material are the main raws of operation and maintenance before the State of Blast Furnace, and developmental stage such as iron runner ramming mass, iron runner prefabricated section and iron runner castable have been experienced in its development.At present, because the blast furnace heat size varies in size, form of construction work is also the same not to the utmost; With regard to China's As-Is, in fact these several forms of construction work all simultaneously and deposit.Material also mostly is with Al
2O
3-SiC-C system material is main.
Blast furnace iron outlet groove, slag runner are in refractory materials under the effect of periodic molten iron and slag, and working conditions is very harsh, must satisfy following performance requriements:
(1) mechanical behavior under high temperature is good, has the good anti-molten iron and the scouring capability of slag;
(2) chemical corrosion of refractory slag and good penetrability;
(3) has good heat-shock resistance;
(4) it is little heavily to burn volume change, has fine and close structure uniformly;
(5) good in oxidation resistance of material guarantees that the carbon content in the material is not oxidized, keeps original structure of material and performance constant.
Patent CN1341573 discloses a kind of iron runner and has exempted to toast ramming mass.This ramming mass is to be main component with high alumina, silicon carbide, graphite etc., is the ramming mass that wedding agent is made with the resin, is used for iron runner, can directly use without baking tap a blast furnace.For improving intensity is to increase hot strength with clay as ceramic bond, but because that temperature appears in the liquid phase of clay is lower, impurity is higher, although can improve the hot strength in the material, because the existence of the glassy phase erosion resistance when material is used at the scene reduces.
The proportion scale of the blast furnace iron runner ramming mass that uses is at present:
High aluminium material 40-80%
Silicon carbide 7-30%
Carbon material 2-10%
Additive 1-10%
Wedding agent 3-8%
Above per-cent is mass percent.
Wherein high aluminium material can be one or more the mixture of arbitrary proportion in one-level bauxite clinker, high grade bauxite grog, fused brown corundum, sub-white corundum, white fused alumina, the fine and close fused corundom;
Silicon carbide can be different grades, and is different and introduce the silicon carbide of different class according to the class height of the size of blast furnace and material therefor;
Carbon material is the mixing of one or more arbitrary proportions in graphite, coke powder, the pitch; Wherein the bituminous softening temperature is greater than 90 ℃;
Additive is the mixture of a kind of or two several arbitrary proportions in metal A l, Si, the clay;
Wedding agent is one or more the mixture of arbitrary proportion in liquid phenolic resin, carbolineum, the coal tar.
Summary of the invention
The objective of the invention is to: the Al that a kind of nitrogen ferrosilicon is provided
2O
3-SiC-C system ramming mass utilizes hot strength, high temperature resistance slag corrosion and the perviousness of ferro-silicon nitride decomposition reaction at high temperature increasing material, increases the oxidation-resistance of material simultaneously.
The present invention is made up of aluminosilicate material, silicon carbide, carbon material and ferro-silicon nitride, wedding agent, additive.Aluminosilicate material is bauxite clinker, brown corundum, can be one or both compound wherein; Silicon carbide can be different grades, and is different and introduce the silicon carbide of different class according to the class height of the size of blast furnace and material therefor; Carbon material is that in graphite, the pitch etc. one or both are compound, and wherein the bituminous softening temperature is greater than 90 ℃.Wedding agent is a liquid phenolic resin.
The present invention is the ferro-silicon nitride fine powder that adds 5-15% on the basis of present employed ramming mass, utilize hot strength, high temperature resistance slag corrosion and the perviousness of ferro-silicon nitride decomposition reaction at high temperature increasing material, increase the oxidation-resistance of material simultaneously.
The present invention specifically is constructed as follows:
Aluminosilicate material 43-80%
Silicon carbide 7-25%
Carbon material 2-10%
Ferro-silicon nitride 5-15%
Si powder 0-4%
Al powder 0-3%
On the basis of above-mentioned compound, add resol 2-7%.
Above per-cent is mass percent.
The invention has the advantages that: improved hot strength, high temperature resistance slag corrosion and the perviousness of ramming mass, increased the oxidation-resistance of material simultaneously.
Embodiment
High grade bauxite, brown corundum, silicon carbide, graphite, pitch, ferro-silicon nitride, metal A l, Si etc. are joined in the mud stone roller machine in proportion, after mixing a little, add resol and stir, till stirring.12 sharp ratio of components of concrete enforcement of the present invention are as showing:
Table embodiment proportioning (percentage ratio is mass percent in the table)
High grade bauxite in the allocation sheet, brown corundum, silicon carbide, silicon nitride iron powder, graphite, pitch, Si, Al additional proportion sum are 100%, and the add-on of resol is 5.0%, 6.0%, 6.5% of an overall raw material.
Because the adding of ferro-silicon nitride, the use properties of iron runner ramming mass is greatly improved.The ramming mass of making according to No. 6 schemes in the embodiment tabulation is at 450m
3Use on the blast furnace iron runner to reach more than 15 days, than having improved the work-ing life of on-the-spot ramming mass 4-5 days.
Claims (2)
1, a kind of nitrogen ferrosilicon exempt to toast the iron runner ramming mass, form by aluminosilicate material, silicon carbide, carbon material and ferro-silicon nitride, wedding agent, additive, additive is Si powder and/or Al powder; It is characterized in that: aluminosilicate material is 43-80%, and silicon carbide is 7-25%, and carbon material is 2-10%, ferro-silicon nitride is 5-15%, and the Si powder is 0-4%, and the Al powder is 0-3%, on the basis of above-mentioned compound, add wedding agent liquid phenolic resin 2-7%, more than be mass percent; Described aluminosilicate material is one or both compound in bauxite clinker, the brown corundum.
2, according to the described ramming mass of claim 1, it is characterized in that: carbon material is that in graphite, the pitch one or both are compound, and wherein the bituminous softening temperature is greater than 90 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310113597 CN1232470C (en) | 2003-11-18 | 2003-11-18 | Bake-free iron runner ramming mass containing ferrosilicon nitride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310113597 CN1232470C (en) | 2003-11-18 | 2003-11-18 | Bake-free iron runner ramming mass containing ferrosilicon nitride |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1544389A CN1544389A (en) | 2004-11-10 |
| CN1232470C true CN1232470C (en) | 2005-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310113597 Expired - Fee Related CN1232470C (en) | 2003-11-18 | 2003-11-18 | Bake-free iron runner ramming mass containing ferrosilicon nitride |
Country Status (1)
| Country | Link |
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| CN (1) | CN1232470C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE469110T1 (en) * | 2005-11-21 | 2010-06-15 | Siemens Ag | METHOD FOR PRODUCING A FIRED MOLD OF A FIREPROOF LINING |
| CN101851106B (en) * | 2010-04-08 | 2013-01-09 | 营口鲅鱼圈耐火材料有限公司 | Antioxidation aluminium unburned carbon brick and preparation method thereof |
| LU91868B1 (en) | 2011-09-09 | 2013-03-11 | Wurth Paul Sa | Tamping mass for the refractory lining of a metallurgical receptacle, and metallurgical receptacle, in particular blast furnace, comprising a coating using said mass to be tamped. |
| CN103304245B (en) * | 2013-02-28 | 2014-11-19 | 北京科技大学 | Unfired ferro silicon nitride-alumina composite carbon-free sliding plate and preparation method thereof |
| CN103936439B (en) * | 2014-03-27 | 2016-02-03 | 渑池金华新材料有限公司 | A kind of environment-friendly type height iron influx exempts from baking casting house ramming mass and preparation method thereof |
| CN106747460A (en) * | 2016-12-07 | 2017-05-31 | 浙江嘉吉石化工程有限公司 | A kind of gasification furnace carborundum ramming mass |
| CN113582707B (en) * | 2021-08-13 | 2023-01-06 | 宜兴市海科窑炉工程有限公司 | High-strength environment-friendly wear-resistant ramming mass and preparation method thereof |
| CN113999023B (en) * | 2021-09-28 | 2022-11-25 | 赛文斯新型材料(无锡)有限公司 | Preparation method of nano refractory material for stopper rod |
| CN116082024A (en) * | 2022-11-03 | 2023-05-09 | 攀钢冶金材料有限责任公司 | Baking-free blast furnace tapping channel ramming material, preparation method and application thereof |
-
2003
- 2003-11-18 CN CN 200310113597 patent/CN1232470C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1544389A (en) | 2004-11-10 |
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