CN1527016A - Quick repairing material and its production process - Google Patents
Quick repairing material and its production process Download PDFInfo
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- CN1527016A CN1527016A CNA031111254A CN03111125A CN1527016A CN 1527016 A CN1527016 A CN 1527016A CN A031111254 A CNA031111254 A CN A031111254A CN 03111125 A CN03111125 A CN 03111125A CN 1527016 A CN1527016 A CN 1527016A
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- magnesia
- quick repairing
- repairing material
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Abstract
The quick repairing material consists of MgO 85.2-89.0 wt%, SiO2 0.5-3.7 wt%, Al2O3 0.3-0.8 wt%, Fe2O3 0.6-4.6 wt% and residual carbon 1.5-10.0 wt%. The preparation process includes selecting material including electrically melted magnesite, carbon material, additive and binding agent; material processing; mixing and grinding; and re-mixing. The quick repairing material has short sintering time less than 10 min, high adhesion, erosion resistance, etc. and the preparation process is short and low in cost.
Description
Affiliated technical field
The invention belongs to technical field of refractory materials, particularly a kind of quick repairing material and manufacture method thereof.
Background technology
Its furnace lining of smelting iron and steel processing requirement with amorphous refractory should anti-ly corrode, antiscour, also must possess short characteristics such as sintering time.The anti-erosion of existing mending material, scour resistance are poor, and sintering time is long, has influenced tap to tap time during fettling greatly, and be totally unfavorable to improving steel-making output, and existing mending material major part contains pitch, and use also can cause environmental pollution.
Summary of the invention
In order to solve existing mending material sintering time problem, the invention provides a kind of adhesive rate height, anti-erosion, antiscour, quick repairing material and manufacture method thereof that sintering time is extremely short.
The present invention is a kind of mixture, and it consists of:
| Composition | ??MgO | ??SiO 2 | ??CaO | ??Al 2O 3 | ????Fe 2O 3 | Carbon residue |
| Content % (weight) | ??85.2～ ??89.0 | ??3.7～ ??0.5 | ??8.0～1.5 | ??0.8～0.3 | ????4.6～ ????0.6 | ????1.5～ ????10.0 |
Physicals of the present invention is:
Manufacture method of the present invention is raw materials used to be:
1, magnesia
1. the electrosmelted magnesite clinker component target is:
MgO 〉=97%, SiO
2≤ 1.0%, CaO≤1.5%, B.D. (g/cm
3) 〉=3.30, monocrystalline size 〉=220 μ m, C/S 〉=2, granularity 0-120mm, add-on is 85～93%.
2. the magnesite clinker component target is: MgO 〉=90%, SiO
2≤ 4.0%, CaO≤2.0%, B.D. (g/cm
3) 〉=3.20, granularity 0-120mm.
2, carbon materials
Graphite composition index is:
Fixed carbon 95%～98%, its volatile matter≤1.5%, moisture＜0.5%, screening amount≤20.0%
Add-on is 1～3%.Select for use the trade mark of graphite to be respectively LG (-) 100-98, LG (-) 100-97, LG (-) 100-96, LG (-) 100-95.
3, additive
1. antioxidant: adopt the MAGNESIUM METAL aluminium powder, simple substance Mg, Al (1: 1) content 〉=98% wherein active Mg and Al 〉=94%, granularity is-180 orders--200 orders, add-on are 2-3%.
2. properties-correcting agent: be liquid mixture behind the coal tar distillation, add-on is 1-2%.
3. solidifying agent: be hexamethylenetetramine [(CH
2)
6N
4], add-on is 1-2%.
4, wedding agent: metal-modified resole, add-on are 3-15%.
Manufacturing processed of the present invention
Raw material processing:
At first the magnesia crushing and screening is become the granularity of 4-1mm and 1-0mm, the magnesia proportioning of two kinds of granularities is 4: 1, and other has part proportioning surplus magnesia to use it for anything else fully.
Carbon materials is selected high-quality graphite for use.
After raw material is ready to complete, to the further processing treatment of raw material, proportioning surplus magnesia is mixed common mill with all additives together, fineness is-200 orders.Several part materials with above process processing: magnesia, wedding agent, the mixed material of carbon materials have promptly been made efficient quick repairing material of the present invention with remaining wedding agent, being total to the abrasive dust uniform mixing, pack then, check, and can use.
Efficient quick repairing material sintering situation of the present invention is:
The present invention has following characteristics:
1, sintering time is extremely short, on average is lower than 10 minutes, helps improving output of steel, accelerates to smelt rhythm, improves production operational availability;
2, adhesive rate height reaches more than 99.5%;
3, anti-erosion, antiscour, rapid sintering forms the carbon skeleton reticulated structure more than 800 ℃, and wearing quality is traditional ceramics 2-3 times in conjunction with anti-material;
4, all or part ofly replaced traditional refractory materials;
Method of the present invention, technical process is short, realizes that easily cost is low.
Description of drawings:
Accompanying drawing is a process flow sheet of the present invention.
Embodiment
Raw material:
1, electrosmelted magnesite clinker:
Select the electrosmelted magnesite clinker of the DMS-97 trade mark for use, its physicochemical property conforms to, ZBD52 001-90 regulation, and add-on is 86%.
2, carbon materials: graphite
Select trade mark LG (-) 100-96 for use, its physical and chemical index conforms to the GB/T3518-95 regulation, and add-on is 1%.
3, additive
1. antioxidant, the MAGNESIUM METAL aluminium powder, add-on is 2%;
2. properties-correcting agent, liquid mixture behind the coal tar distillation, add-on is 1%;
3. solidifying agent, hexamethylenetetramine, add-on is 1%;
4, wedding agent:
Urea formaldehyde is divided on the first rank, and add-on is 9%;
According to aforementioned technological process, promptly prepare efficient quick repairing material of the present invention.
The position such as big face, gudgeon, furnace crown, slag line that the quick repairing material of this invention is used for the converter of various nominal capacities.Test effect proves: the of the present invention efficient quick repairing material with the method for inventing produces, satisfy the service requirements of various nominal capacity converters, its excellent performance, long service life fully.
The quick repairing material of this invention is used for the slag lining of the ladle of various nominal capacities, and test effect proves: the quick repairing material of the present invention with the method for invention produces, satisfy the service requirements of various nominal capacity ladles, its excellent performance, long service life fully.
The quick repairing material of this invention is used for the slag lining of the electric furnace of various nominal capacities, and test effect proves: the quick repairing material of the present invention with the method for invention produces, satisfy the service requirements of various nominal capacity electric furnaces, its excellent performance, long service life fully.
Claims (2)
1, a kind of quick repairing material is characterized in that this quick repairing material composition is by weight percentage:
MgO SiO
2CaO Al
2O
3Fe
2O
3Carbon residue
85.2～
0.5～3.7?????1.5～8.0?????0.3～0.8??????0.6～4.6???????1.5～10.0
89.0
2, the manufacture method of quick repairing material according to claim 1 is characterized in that:
(1) material choice, by weight:
Magnesia: select electrosmelted magnesite clinker or magnesite clinker for use, add-on is 85～93%
Electrosmelted magnesite clinker, component target is: MgO 〉=97%, SiO
2≤ 1.0%, CaO≤1.5%, B.D. (g/cm
3) 〉=3.30, monocrystalline size 〉=220 μ m, C/S 〉=2, granularity 0-120mm.
Magnesite clinker, component target is: MgO 〉=90%, SiO
2≤ 4.0%, CaO≤2.0%, B.D. (g/cm
3) 〉=3.20, granularity 0-120mm.
Carbon materials, graphite composition index is: fixed carbon 95%～98%, its volatile matter≤1.5%, moisture＜0.5%, screening amount≤20.0%;
Add-on is 1～3%.Select for use the trade mark of graphite to be respectively LG (-) 100-98, LG (-) 100-97, LG (-) 100-96, LG (-) 100-95.
Additive:
The a antioxidant: adopt the MAGNESIUM METAL aluminium powder, simple substance Mg, Al (1: 1) content 〉=98%, wherein active Mg and Al 〉=94%, granularity is-180 orders--200 orders, add-on are 2-3%;
B properties-correcting agent: be liquid mixture behind the coal tar distillation, add-on is 1-2%;
C solidifying agent: be hexamethylenetetramine [(CH
2)
6N
4], add-on is 1-2%;
Wedding agent: metal-modified resole, add-on precentagewise are 3-15%;
2. processing step:
The processing of a raw material:
At first the magnesia crushing and screening is become the granularity of 4-1mm and 1-0mm, the magnesia proportioning of two kinds of granularities is 4: 1, and other has part proportioning surplus magnesia to use it for anything else fully;
Carbon materials is selected high-quality graphite for use;
B to the further processing treatment of raw material, mixes common mill with proportioning surplus magnesia with all additives together after raw material is ready to complete, fineness is-200 orders;
Several part materials that c processes above process: magnesia, wedding agent, the mixed material of carbon materials have promptly been made quick repairing material of the present invention with remaining wedding agent, being total to the abrasive dust uniform mixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031111254A CN1527016A (en) | 2003-03-07 | 2003-03-07 | Quick repairing material and its production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031111254A CN1527016A (en) | 2003-03-07 | 2003-03-07 | Quick repairing material and its production process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1527016A true CN1527016A (en) | 2004-09-08 |
Family
ID=34283392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031111254A Pending CN1527016A (en) | 2003-03-07 | 2003-03-07 | Quick repairing material and its production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1527016A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811881A (en) * | 2010-04-20 | 2010-08-25 | 重庆钢铁(集团)有限责任公司 | MgO-C material slag line brick for steel ladle |
| CN101381237B (en) * | 2008-10-23 | 2012-07-11 | 德清县力拓炉料有限公司 | Environment-friendly type continuous casting dry material for tundish and preparation method thereof |
| CN102807380A (en) * | 2012-08-17 | 2012-12-05 | 武汉科技大学 | Magnesia-carbon castable and preparation method thereof |
| CN102584298B (en) * | 2008-10-23 | 2013-08-07 | 德清县力拓炉料有限公司 | Preparation method of environmentally-friendly dry material for continuous casting tundish |
| CN105645970A (en) * | 2015-12-29 | 2016-06-08 | 鞍山市和丰耐火材料有限公司 | Environment-friendly type long-life fettling sand and production method thereof |
| CN108409302A (en) * | 2018-04-02 | 2018-08-17 | 武汉重远炉窑工程技术服务有限公司 | A kind of refractory brick repairing material |
| CN109503136A (en) * | 2018-10-23 | 2019-03-22 | 江苏前锦炉业设备有限公司 | Nickelic sintering furnace lining material and preparation method thereof |
| CN111792920A (en) * | 2020-06-20 | 2020-10-20 | 鞍山赛诺新材料有限公司 | Novel environment-friendly converter quick repairing material |
-
2003
- 2003-03-07 CN CNA031111254A patent/CN1527016A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101381237B (en) * | 2008-10-23 | 2012-07-11 | 德清县力拓炉料有限公司 | Environment-friendly type continuous casting dry material for tundish and preparation method thereof |
| CN102584298B (en) * | 2008-10-23 | 2013-08-07 | 德清县力拓炉料有限公司 | Preparation method of environmentally-friendly dry material for continuous casting tundish |
| CN101811881A (en) * | 2010-04-20 | 2010-08-25 | 重庆钢铁(集团)有限责任公司 | MgO-C material slag line brick for steel ladle |
| CN102807380A (en) * | 2012-08-17 | 2012-12-05 | 武汉科技大学 | Magnesia-carbon castable and preparation method thereof |
| CN102807380B (en) * | 2012-08-17 | 2013-10-23 | 武汉科技大学 | Magnesia-carbon castable and preparation method thereof |
| CN105645970A (en) * | 2015-12-29 | 2016-06-08 | 鞍山市和丰耐火材料有限公司 | Environment-friendly type long-life fettling sand and production method thereof |
| CN105645970B (en) * | 2015-12-29 | 2018-02-09 | 鞍山市和丰耐火材料有限公司 | The fettling sand and its production method of a kind of environment-friendly type high life |
| CN108409302A (en) * | 2018-04-02 | 2018-08-17 | 武汉重远炉窑工程技术服务有限公司 | A kind of refractory brick repairing material |
| CN109503136A (en) * | 2018-10-23 | 2019-03-22 | 江苏前锦炉业设备有限公司 | Nickelic sintering furnace lining material and preparation method thereof |
| CN111792920A (en) * | 2020-06-20 | 2020-10-20 | 鞍山赛诺新材料有限公司 | Novel environment-friendly converter quick repairing material |
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