CN103496992B - Chromium zirconium mullite refractory material and preparation method thereof - Google Patents
Chromium zirconium mullite refractory material and preparation method thereof Download PDFInfo
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- CN103496992B CN103496992B CN201310431067.6A CN201310431067A CN103496992B CN 103496992 B CN103496992 B CN 103496992B CN 201310431067 A CN201310431067 A CN 201310431067A CN 103496992 B CN103496992 B CN 103496992B
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- mullite
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Abstract
The invention relates to a chromium zirconium mullite refractory material and a preparation method thereof. The chromium zirconium mullite refractory material takes fused mullite or sintered mullite as an aggregate and takes zirconite powder, corundum powder and chromium oxide green as product matrix parts. The raw materials of the refractory material comprise 65% of mullite, 10% of corundum powder, 15% of zirconite powder and 10% of chromium oxide green by weight. The sintered chromium zirconium mullite refractory product is mainly used in glass melting furnaces, glass fiber melting furnaces and steel and chemical kilns, and has the high temperature use characteristics of excellent thermal shock resistance, strong high temperature cracking and slag resistance, no stripping and the like.
Description
Technical field
The invention belongs to technical field of refractory materials, be specifically related to a kind of chromium zirconium mullite refractory materials and preparation method thereof.
Background technology
Mullite (consists of 3Al usually
2o
32SiO
2) be at SiO
2-Al
2o
3the crystal of unique stable existence in biphasic system is also one of the most common industrial ceramics.Because mullite has excellent hot strength, creep resistance, low thermal coefficient of expansion, good dielectric properties, the high-transmission rate at middle infrared, good chemical stability and thermostability, can remain on the mechanical property under Elevated Temperature Conditions and the stability in oxidizing atmosphere, it has important application prospect in electronics, optics and thermal structure etc. simultaneously.
A kind of refractory product that chromium zirconium mullite refractory product is developed mainly for some key positions in glass melter often go wrong.
1, the tongue arch brick of glass melter
Present domestic glass melter tongue arch brick mainly adopts Corhart Zac-block and electric smelting to tie corundum-mullite brick (1) Corhart Zac-block again because there is very much the existence of a large amount of zirconium white and corundum in dense structure feature and brick material, make its corrosion resistance stronger, but be placed on this position of tongue arch to use, temperature fluctuation crystal that is relatively more frequent and brick material inside changes (at about 1100-1200 DEG C, zirconium white occurs that monocline is changed to tetragonal crystal), brick body is subject to thermal stresses impact to be made it to occur bursting and more very falls block (what have occurs in heating-up furnace) and have a strong impact on work-ing life.(2) electric smelting again combined corundum mullite brick relative to fused cast refractories, do not have fused cast refractories corrosion resistance strong, but heat-shock resistance is fine, has been unlikely block phenomenon, in use has that alkaline matter corrodes brick body, peeling phenomenon, affects work-ing life.
2, Regenerator Checker of Glass Furnace and the target wall refractory product of coking coal powder combustion technology is adopted
Because recent year glass production producer is selecting the beginning cheap petroleum coke powder of a large amount of use and coal dust on fuel, but this fuel can produce the materials such as a large amount of Vanadium Pentoxides, sulfur sesquioxide and cause Eroded to brick body in burning, and some kilns only must be forced to shutdown maintenance with 3 months.
Through a large amount of demonstrations with facts have proved, chromium zirconium mullite achieves the result of use felt quite pleased, and solves the use problem of existing refractory product.
Summary of the invention
The object of the invention is for the problems referred to above, a kind of chromium zirconium mullite refractory materials and preparation method thereof is provided.
For achieving the above object, the technical solution adopted in the present invention is:
A kind of chromium zirconium mullite refractory materials, chromium zirconium mullite refractory materials with electrofused mullite or fused mullite for aggregate, with zircon powder, lapis amiridis, chromoxide green for article substrate part, the weight proportion of described raw material for refractory is mullite 65%, lapis amiridis 10%, zircon powder 15%, chromoxide green 10%.
Described mullite is for containing Al
2o
374.5%, SiO
2the mullite of 25%, described lapis amiridis≤325 order, Al
2o
3>=99%, described zircon powder≤325 order, ZrO
2>=65%, described chromoxide green≤325 order, CrO
2>=99%.
A kind of preparation method of described refractory materials, according to above formulating of recipe, by all raw materials edge runner-wet mill or stirrer for mixing evenly after, add the pulping liquor of about 3% outward as binding agent, ageing mixture 8 hours after stirring, or direct pressing machine forms, brick after drying, is incubated and burns till for 4 hours in the high temperature of about 1650 DEG C.
Beneficial effect
Sintering chromium zirconium mullite refractory product of the present invention is mainly used in glass melter, glass melting furnaces and iron and steel, chemical industry kiln, and its thermal shock resistance is excellent, high temperature resists high temperature handling characteristics such as bursting apart, high temperature anti-slag ability by force, is not peeled off.
Embodiment
A kind of chromium zirconium mullite refractory materials, chromium zirconium mullite refractory materials with electrofused mullite or fused mullite for aggregate, with zircon powder, lapis amiridis, chromoxide green for article substrate part, the weight proportion of described raw material for refractory is mullite 65%, lapis amiridis 10%, zircon powder 15%, chromoxide green 10%.
Described mullite is for containing Al
2o
374.5%, SiO
2the mullite of 25%, described lapis amiridis≤325 order, Al
2o
3>=99%, described zircon powder≤325 order, ZrO
2>=65%, described chromoxide green≤325 order, CrO
2>=99%.
A kind of preparation method of described refractory materials, according to above formulating of recipe, by all raw materials edge runner-wet mill or stirrer for mixing evenly after, add the pulping liquor of about 3% outward as binding agent, ageing mixture 8 hours after stirring, or direct pressing machine forms, brick after drying, is incubated and burns till for 4 hours in the high temperature of about 1650 DEG C.
The physical and chemical index of table 1 raw material
Last it is noted that obviously, above-described embodiment is only for example of the present invention is clearly described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of amplifying out or variation be still among protection scope of the present invention.
Claims (1)
1. the preparation method of a chromium zirconium mullite refractory materials, it is characterized in that: chromium zirconium mullite refractory materials with electrofused mullite or fused mullite for aggregate, with zircon powder, lapis amiridis, chromoxide green for article substrate part, the weight proportion of described raw material for refractory is mullite 65%, lapis amiridis 10%, zircon powder 15%, chromoxide green 10%; Wherein, described mullite is for containing Al
2o
374.5%, SiO
2the mullite of 25%, described lapis amiridis≤325 order, Al
2o
3>=99%, described zircon powder≤325 order, ZrO
2>=65%, described chromoxide green≤325 order, CrO
2>=99%; According to above formulating of recipe, by all raw materials edge runner-wet mill or stirrer for mixing evenly after, add the pulping liquor of about 3% outward as binding agent, ageing mixture 8 hours after stirring, or direct pressing machine forms, brick after drying, is incubated and burns till for 4 hours in the high temperature of about 1650 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310431067.6A CN103496992B (en) | 2013-09-22 | 2013-09-22 | Chromium zirconium mullite refractory material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310431067.6A CN103496992B (en) | 2013-09-22 | 2013-09-22 | Chromium zirconium mullite refractory material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103496992A CN103496992A (en) | 2014-01-08 |
| CN103496992B true CN103496992B (en) | 2015-04-01 |
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|---|---|---|---|
| CN201310431067.6A Active CN103496992B (en) | 2013-09-22 | 2013-09-22 | Chromium zirconium mullite refractory material and preparation method thereof |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104261848A (en) * | 2014-09-23 | 2015-01-07 | 郑州瑞泰耐火科技有限公司 | Chrome-oxide-containing mullite brick and preparation method thereof |
| CN104446537B (en) * | 2014-11-13 | 2016-06-22 | 天津大学 | The preparation method of nano zircite and chromium oxide composite |
| CN104355637B (en) * | 2014-11-13 | 2016-03-30 | 天津大学 | A kind of preparation method of the high chromite corundum sand utilizing nano zircite toughness reinforcing |
| CN105669171A (en) * | 2014-11-19 | 2016-06-15 | 无锡市德林环保工程有限公司 | Chromium-zirconium compound brick and preparation technology thereof |
| CN105130450B (en) * | 2015-06-30 | 2017-07-28 | 湖州巨旺墙体材料有限公司 | A kind of anticorrosive fire resisting zircon corundum brick |
| CN106187125B (en) * | 2016-06-29 | 2019-07-23 | 广州市石基耐火材料厂 | Chromium fused alumina zirconia aggregate, mixed active powder, chromium zirconium boule composite and preparation method thereof |
| CN107199308A (en) * | 2017-07-19 | 2017-09-26 | 合肥铭佑高温技术有限公司 | A kind of refractory material and preparation method for investment casting shell |
| CN109053176B (en) * | 2018-08-31 | 2021-10-01 | 广州市石基耐火材料厂 | Chromium-containing mullite refractory material and preparation method thereof |
| CN109437874B (en) * | 2018-11-29 | 2021-11-23 | 贵州大东风机械有限公司 | Polycrystalline crucible capable of being repeatedly used and forming method thereof |
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| CN1090560A (en) * | 1993-02-02 | 1994-08-10 | 张效英 | Cement-free mullite composite pouring material |
| CN1530193A (en) * | 2003-03-14 | 2004-09-22 | 上海宝湘耐火材料有限公司 | Manufacture of zirconium mullite runner for continuous casting bakie |
| CN1761635A (en) * | 2003-02-07 | 2006-04-19 | 联合矿物产品公司 | Crack-resistant dry refractory |
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| CN1970502A (en) * | 2006-12-08 | 2007-05-30 | 鞍山市耘路耐火材料厂 | Argon-blowing narrow brick |
| CN103204684A (en) * | 2012-12-05 | 2013-07-17 | 中国石油集团东北炼化工程有限公司吉林设计院 | Chromium zirconium corundum mullite brick suitable for burning of waste liquid and wastes of petrochemical industry |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2891271B1 (en) * | 2005-09-26 | 2008-01-11 | Saint Gobain Ct Recherches | FRITTE REFRACTORY PRODUCT HAVING IMPROVED THERMAL SHOCK RESISTANCE. |
| US8105683B2 (en) * | 2007-03-07 | 2012-01-31 | General Electric Company | Treated refractory material and methods of making |
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- 2013-09-22 CN CN201310431067.6A patent/CN103496992B/en active Active
Patent Citations (6)
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|---|---|---|---|---|
| CN1090560A (en) * | 1993-02-02 | 1994-08-10 | 张效英 | Cement-free mullite composite pouring material |
| CN1761635A (en) * | 2003-02-07 | 2006-04-19 | 联合矿物产品公司 | Crack-resistant dry refractory |
| CN1530193A (en) * | 2003-03-14 | 2004-09-22 | 上海宝湘耐火材料有限公司 | Manufacture of zirconium mullite runner for continuous casting bakie |
| CN1931793A (en) * | 2006-10-09 | 2007-03-21 | 符宗德 | Composite mullite brick for special alkaline rotary kiln |
| CN1970502A (en) * | 2006-12-08 | 2007-05-30 | 鞍山市耘路耐火材料厂 | Argon-blowing narrow brick |
| CN103204684A (en) * | 2012-12-05 | 2013-07-17 | 中国石油集团东北炼化工程有限公司吉林设计院 | Chromium zirconium corundum mullite brick suitable for burning of waste liquid and wastes of petrochemical industry |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103496992A (en) | 2014-01-08 |
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