CN103664203A - Production method of high-alumina mullite cast steel bricks - Google Patents
Production method of high-alumina mullite cast steel bricks Download PDFInfo
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- CN103664203A CN103664203A CN201310509863.7A CN201310509863A CN103664203A CN 103664203 A CN103664203 A CN 103664203A CN 201310509863 A CN201310509863 A CN 201310509863A CN 103664203 A CN103664203 A CN 103664203A
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Abstract
The invention discloses a production method of high-alumina mullite cast steel brick. The production flow is as follow: purchasing raw materials; crushing and processing the raw materials; preparing; mixing; forming green bricks; drying the green bricks; sintering; inspecting; packaging and putting the bricks into storage. The production method uses high bauxite as the main raw material which is abundant in resource and great in storage, and the high-alumina mullite cast steel bricks are strong in chemical stability and good in physical performance. In addition, the product produced by the method disclosed by the invention has stronger anti-erosion capability and good thermal stability. The production process is simple and convenient to operate and is beneficial to batch production.
Description
Technical field
The present invention relates to fire resisting material field, particularly high aluminum-containing mullite waters the production method of steel brick.
Background technology
At present, on market, produce and generally adopt clayey to water steel brick with watering steel brick, but along with the progress of steel-smelting technology and popularizing of continuous casting ingot casting production method, adopt the production method of die casting significantly to decline, clayey is watered steel brick and has also seldom been used.
Yet another kind waters steel brick, i.e. Special Alloy Steel, its production, because smelting technology complexity yields poorly and involves great expense, is mostly still used die casting production model at present.The quality requirements of Special Alloy Steel is high, and that former clayey is watered steel brick corrosion-resistant property is very poor, easily cause alloy cast steel part be mingled with and scrap, so special steel enterprise, erosion resistance to enhancing refractory materials is very urgent, is badly in need of the high-grade steel brick that waters and reduces being mingled with of special steel.Common High-Alumina waters steel brick, and domestic also have fire-resistant enterprise to produce, and that common High-Alumina waters the thermal shock resistance of steel brick is poor, and corrosion-resistant property can not meet the requirement that Special Alloy Steel is produced completely.
Summary of the invention
The object of the invention is to: for the above-mentioned technical problem existing in prior art, provide all production methods of more stable high aluminum-containing mullite of a kind of various aspects of performance.
The present invention is achieved by the following technical solutions:
High aluminum-containing mullite waters the production method of steel brick, comprises the steps:
Step S1, buying starting material are also chosen classification by starting material;
Step S2, starting material grinding and processing: premium high-alumina alumina raw is processed into the particle of 0mm-1mm and 1mm-3mm through disintegrating apparatus and screening installation;
Step S3, is mixed alumine particle and mullite, aluminum oxide, bonding clay after processing by a certain percentage, and order of addition(of ingredients) is: particulate material, bonding agent, fine powder material;
Step S4, fully stirs above-mentioned starting material, must not occur walk and stir non-uniform phenomenon;
Step S5, green brick forming: according to customer need, with 300 tons of pressing machinees by pug compression moulding;
Step S6, brick bat drying: adobe is pushed to tunnel dryer, dry 23-27 hour at 90-180 ℃ of temperature, base substrate moisture is not more than 1.5%;
Step S7, then, sends dry adobe into tunnel furnace high temperature sintering, and sintering temperature is 1320-1650 ℃, and soaking time was controlled in 8 hours;
Step S8, check: according to figure paper size and the check of appearance requirement block-by-block;
Step S9, last, by the finished product packing warehouse-in being up to the standards.
Particularly, described bonding agent is natural organic matter.
Particularly, the mixed ratio in described step S3 is, alumine 60%-75%, mullite 15%-25%, aluminum oxide 5%-18%, in conjunction with native 5%-12%.
In sum, owing to having adopted technique scheme, the invention has the beneficial effects as follows:
1, to adopt alumine be main raw material in the present invention, its aboundresources, and reserves are many, and chemical stability is strong, and physicals is good.
2, that the mullite that the present invention adopts has is high temperature resistant, intensity is high, thermal conductivity lampet feature.
3, the production method that high aluminum-containing mullite provided by the invention waters steel brick, its product of producing has stronger corrosion resistance and good thermostability; In addition, this production method is practical, easy and simple to handle, is conducive to batch production.
Embodiment
Disclosed all features in this specification sheets, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Disclosed arbitrary feature in this specification sheets, unless narration especially all can be replaced by other equivalences or the alternative features with similar object.That is,, unless narration especially, each feature is an example in a series of equivalences or similar characteristics.
High aluminum-containing mullite waters the production method of steel brick, comprises the steps:
Step S1, buying starting material are also chosen classification by starting material;
Step S2, starting material grinding and processing: premium high-alumina alumina raw is processed into the particle of 0mm-1mm and 1mm-3mm through disintegrating apparatus and screening installation;
Step S3, is mixed alumine particle and mullite, aluminum oxide, bonding clay after processing by a certain percentage, and order of addition(of ingredients) is: particulate material, bonding agent, fine powder material;
Step S4, fully stirs above-mentioned starting material, must not occur walk and stir non-uniform phenomenon;
Step S5, green brick forming: according to customer need, with 300 tons of pressing machinees by pug compression moulding;
Step S6, brick bat drying: adobe is pushed to tunnel dryer, dry 23-27 hour at 90-180 ℃ of temperature, base substrate moisture is not more than 1.5%;
Step S7, then, sends dry adobe into tunnel furnace high temperature sintering, and sintering temperature is 1320-1650 ℃, and soaking time was controlled in 8 hours;
Step S8, check: according to figure paper size and the check of appearance requirement block-by-block;
Step S9, last, by the finished product packing warehouse-in being up to the standards.
The physics and chemistry experience index that the high aluminum-containing mullite of producing waters steel brick finished product is:
| Project | Al 2O 3 | Fe 2O 3 | Refractoriness | Compressive strength | Void content | Volume density g/cm 3 |
| Index | ≥72% | ≤1.5％ | 178 cone CN | ≥25Mpa | ≤22% | ≥2.7 |
Particularly, described bonding agent is natural organic matter.
Particularly, the mixed ratio in described step S3 is, alumine 60%-75%, mullite 15%-25%, aluminum oxide 5%-18%, in conjunction with native 5%-12%.
This kind high aluminum-containing mullite waters the production method of steel brick, selecting alumine is main raw material, in the matrix of adobe, first introduce a small amount of mullite, aluminum oxide and bonding clay, the high aluminum-containing mullite of producing waters steel brick, has stronger corrosion resistance and good thermal shock resistance.
Above-described specific embodiment, further describes object of the present invention, technical scheme and beneficial effect, and institute it should be understood that and the foregoing is only specific embodiments of the invention, is not limited to the present invention.The present invention expands to any new feature or any new combination disclosing in this manual, and the arbitrary new method disclosing or step or any new combination of process.
Claims (3)
1. high aluminum-containing mullite waters the production method of steel brick, it is characterized in that, comprises the steps:
Step S1, buying starting material are also chosen classification by starting material;
Step S2, starting material grinding and processing: premium high-alumina alumina raw is processed into the particle of 0mm-1mm and 1mm-3mm through disintegrating apparatus and screening installation;
Step S3, is mixed alumine particle and mullite, aluminum oxide, bonding clay after processing by a certain percentage, and order of addition(of ingredients) is: particulate material, bonding agent, fine powder material;
Step S4, fully stirs above-mentioned starting material, must not occur walk and stir non-uniform phenomenon;
Step S5, green brick forming: according to customer need, with 300 tons of pressing machinees by pug compression moulding;
Step S6, brick bat drying: adobe is pushed to tunnel dryer, dry 23-27 hour at 90-180 ℃ of temperature, base substrate moisture is not more than 1.5%;
Step S7, then, sends dry adobe into tunnel furnace high temperature sintering, and sintering temperature is 1320-1650 ℃, and soaking time was controlled in 8 hours;
Step S8, check: according to figure paper size and the check of appearance requirement block-by-block;
Step S9, last, by the finished product packing warehouse-in being up to the standards.
2. the production method that high aluminum-containing mullite according to claim 1 waters steel brick, is characterized in that, described bonding agent is natural organic matter.
3. the production method that high aluminum-containing mullite according to claim 1 waters steel brick, is characterized in that, the mixed ratio in described step S3 is, alumine 60%-75%, mullite 15%-25%, aluminum oxide 5%-18%, in conjunction with native 5%-12%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310509863.7A CN103664203A (en) | 2013-10-25 | 2013-10-25 | Production method of high-alumina mullite cast steel bricks |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310509863.7A CN103664203A (en) | 2013-10-25 | 2013-10-25 | Production method of high-alumina mullite cast steel bricks |
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| CN103664203A true CN103664203A (en) | 2014-03-26 |
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| CN201310509863.7A Pending CN103664203A (en) | 2013-10-25 | 2013-10-25 | Production method of high-alumina mullite cast steel bricks |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105801144A (en) * | 2016-04-12 | 2016-07-27 | 安徽马钢耐火材料有限公司 | High-quality high-aluminum runner brick as well as preparation method and application thereof |
| CN106187248A (en) * | 2016-07-26 | 2016-12-07 | 济源市耐火炉业有限公司 | A kind of MULTILAYER COMPOSITE runner brick and production method thereof |
| CN114643338A (en) * | 2022-03-17 | 2022-06-21 | 重庆钢铁股份有限公司 | Method for increasing use times of flow nozzle of cast iron flow divider |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101643364A (en) * | 2009-09-01 | 2010-02-10 | 赵海军 | Pouring iron brick with high aluminum and low iron and preparation method thereof |
| CN102659421A (en) * | 2012-03-31 | 2012-09-12 | 马钢(集团)控股有限公司 | Production method of mullite cast steel brick |
| CN103204687A (en) * | 2013-03-28 | 2013-07-17 | 马钢(集团)控股有限公司 | Steel-casting brick for producing high-grade special alloy steel and production method thereof |
-
2013
- 2013-10-25 CN CN201310509863.7A patent/CN103664203A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101643364A (en) * | 2009-09-01 | 2010-02-10 | 赵海军 | Pouring iron brick with high aluminum and low iron and preparation method thereof |
| CN102659421A (en) * | 2012-03-31 | 2012-09-12 | 马钢(集团)控股有限公司 | Production method of mullite cast steel brick |
| CN103204687A (en) * | 2013-03-28 | 2013-07-17 | 马钢(集团)控股有限公司 | Steel-casting brick for producing high-grade special alloy steel and production method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105801144A (en) * | 2016-04-12 | 2016-07-27 | 安徽马钢耐火材料有限公司 | High-quality high-aluminum runner brick as well as preparation method and application thereof |
| CN106187248A (en) * | 2016-07-26 | 2016-12-07 | 济源市耐火炉业有限公司 | A kind of MULTILAYER COMPOSITE runner brick and production method thereof |
| CN106187248B (en) * | 2016-07-26 | 2018-09-18 | 济源市耐火炉业有限公司 | A kind of MULTILAYER COMPOSITE runner brick and its production method |
| CN114643338A (en) * | 2022-03-17 | 2022-06-21 | 重庆钢铁股份有限公司 | Method for increasing use times of flow nozzle of cast iron flow divider |
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Application publication date: 20140326 |