CN1513802A - Aluminium chromium guality refractory material and its production method - Google Patents
Aluminium chromium guality refractory material and its production method Download PDFInfo
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- CN1513802A CN1513802A CNA021408785A CN02140878A CN1513802A CN 1513802 A CN1513802 A CN 1513802A CN A021408785 A CNA021408785 A CN A021408785A CN 02140878 A CN02140878 A CN 02140878A CN 1513802 A CN1513802 A CN 1513802A
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- slag
- aluminium
- alumina
- corundum
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Abstract
A refractory Al-Cr material is prepared from industrial Al-Cr slag, corundum or Al-Si material and adhesive through proportionally mixing and calcining or not. Its advantages are high-temp strength and high resistance to flame, hot shock, and the osmosis of molten slag.
Description
Though magnesia brick refractoriness height, anti-high oxidation scum and basic slag are very good, and resistance to acid slag and neutral slag are bad.It is very dark that slag easily infiltrates the interior also infiltration of magnesia brick in addition, so magnesia brick resistive connection structure spalling is very poor; And the magnesia brick heat-shock resistance is also bad.Corundum brick resistance to acid and anti-FeO～SiO
2Slag neither be very good, and heat-shock resistance also has certain problem.High alumina brick alkali-resistivity slag and nonferrous smelting FeO～SiO
2Slag is all bad.Though silicon system refractory materials resistance to acid slag is good, anti-neutral slag and nonferrous smelting FeO～SiO
2The slag extreme difference.
Aluminium chromium slag is a kind of industrial residue, its Al
2O
3Content is very high and contain more Cr
2O
3Can form high melting compound or sosoloid with a lot of oxide compounds in the slag, and can improve the viscosity of various slags greatly, thereby stop slag to infiltrate in the brick, very favourable to the structure spalling that alleviates refractory materials.And Cr
2O
3Energy and Al
2O
3Form sosoloid, stop trivalent chromium to change sexavalent chrome into, reduce environmental pollution.Cr
2O
3Be neutrality, energy resistance to acid slag, neutral slag and the not erosion of the slag of extra-high-speed of alkalescence.Therefore, aluminium chromium slag and corundum or alumina-silica material compound aluminium chrome refractory be if can be made, corundum, alumina-silica refractory body not only can be improved at resistance to acid slag, neutral slag, low basicity slag and nonferrous smelting FeO
2-SiO
2The erosion of slag and infiltration can also alleviate Cr
2O
3To the pollution of environment, turn waste into wealth.
Purpose of the present invention
Be to overcome existing corundum, Al
2O
3～SiO
2Fire resistant materials some shortcomings on performance have been opened up a new way for the utilization of chromium slag again with not enough.But the goods resistance to acid slag that this patent is manufactured, neutral slag, low basicity slag and coloured smelting coal refining FeO～SiO
2Slag.
Aluminium chrome refractory of the present invention is according to following formulated
Aluminium chromium slag: 4～75% (weight percents)
Alumina-silica material: 96～25% (weight percents)
Wedding agent: 0.5～12% (weight percent) of above-mentioned material gross weight
Aluminium chromium slag main chemical compositions: Al
2O
370～88%, Cr
2O
36～15% (weight percents)
Alumina-silica material main chemical compositions: Al
2O
358～95%, SiO
240～3% (weight percents)
The alumina-silica material can be: corundum, bauxite clinker, mullite, sillimanite, andaluzite or kyanite.
Wedding agent can be: phosphoric acid, aluminium dihydrogen phosphate, aluminum phosphate chromium, boric acid, water glass or spent pulping liquor.
The production method of above-mentioned refractory materials
1. raw material pulverizing: aluminium chromium slag and aluminium silicon material are pulverized respectively and fine grinding.Granularity after pulverizing and the fine grinding is 0.042～15 millimeter.
2. magnetic separation is handled: will pulverize and fine grinding after aluminium chromium slag and aluminium silicon material carry out magnetic separation respectively and handle removal ferromagnetic material wherein;
3. sieving and grading:, filter out the aluminium chromium slag and the aluminium silicon material of desired particle size according to the size and the purposes of fire resistive material product;
4. combination treatment: the aluminium silicon material of the aluminium chromium slag and 96～25% (weight percent) of 4～75% (weight percents) is mixed, add the wedding agent by the material total amount 0.15～12% (weight percent) of above-mentioned formulated again, stirring gets final product.
5. moulding and goods: ramming or be pressed into the base substrate of different shape, burning till through baking or thermal treatment or high temperature promptly becomes goods.
The invention has the advantages that:
1.Cr
2O
3Be incorporated into Al
2O
3～SiO
2Be in the refractory body, because Cr
2O
3The fusing point height can form high melting compound or sosoloid with many oxide compounds, and makes liquid phase viscosity increase in its brick, and therefore adding the chromium slag does not only reduce Al
2O
3～SiO
3Be the refractoriness of refractory body, and generally can also improve its refractoriness and refractoriness under load.
2. because Cr
2O
3Be incorporated into Al
2O
3～SiO
2Be in the refractory body, can also alleviate slag and infiltrate the interior degree of depth of brick, thereby alleviate the harm that structure spalling causes.Because Cr
2O
3Be intermediate oxide, therefore introduce Cr
2O
3Can improve Al
2O
3～SiO
2Be resistance to acid slag, neutral slag, low alkalinity slag and the nonferrous smelting FeO～SiO of refractory body
2The ability of slag.
3. aluminium chromium slag is an industrial residue, joins Al
2O
3～SiO
2Be in the refractory body, in use with acid slag, neutral slag, low alkalinity slag and nonferrous smelting FeO～SiO
2The slag contact also helps and changes the high valence chrome in the aluminium chromium slag into chromium at a low price, thereby avoids the pollution of 6 valency chromium to environment.
Embodiments of the invention are provided below:
Embodiment 1.
Composition satisfactory aluminium chromium slag and alumina-silica material are pulverized respectively and fine grinding, and its granularity is 0.042～15 millimeter.To pulverize again and fine grinding after material carry out magnetic separation and handle, remove ferromagnetic material wherein.Get 200kg aluminium chromium slag then and mix with 800kg alumina-silica material, add 60kg phosphoric acid or boric acid or water glass again and stir ,-ramming becomes or is pressed into not burned product of aluminium chromium matter.
Embodiment 2.
Composition satisfactory aluminium chromium slag and alumina-silica material are pulverized respectively and fine grinding, and its granularity is 0.042～15 millimeter.To pulverize again and the material of fine grinding carries out magnetic separation and handles, remove ferromagnetic material wherein.Get 500kg aluminium chromium slag then and mix, add 60kg phosphoric acid or aluminium dihydrogen phosphate and mix, be pressed into the different shape goods, be finished product through 200 ℃～500 ℃ thermal treatments again according to customer requirements with 500kg alumina-silica material.
Embodiment 3.
Composition satisfactory aluminium chromium slag and corundum material or alumina-silica material are pulverized respectively and fine grinding, and its granularity is 0.042～15 millimeter.To pulverize again and fine grinding after material carry out magnetic separation and handle, remove wherein ferromagnetic material.Get 750kg aluminium chromium slag then and mix, add 50kg phosphoric acid or aluminium dihydrogen phosphate or spent pulping liquor, mix, be pressed into the different shape blank, carry out high temperature in temperature more than 1350 ℃ then and burn till, make the finished product of different shape with 250kg alumina-silica material.
Claims (3)
1. aluminium chrome refractory and method thereof is characterized in that it is made by following prescription:
Corundum or alumina-silica material: 96～25% (weight percents)
Aluminium chromium slag: 4～75% (weight percents)
Wedding agent: 0.5～12% (weight percent) of above-mentioned materials gross weight
Aluminium chromium slag is an industrial residue, and main chemical compositions is: Al
2O
370～88%, Cr
2O
36～15% (weight percents)
The main chemical compositions of corundum or alumina-silica material is: Al
2O
358～96%, SiO
240～3% (weight percents)
2. according to claim 1, it is characterized in that:
2.1 the alumina-silica material can be: corundum, bauxitic clay grog, mullite material, sillimanite, andaluzite or kyanite.
2.2 wedding agent can be: phosphoric acid, aluminium dihydrogen phosphate, aluminum phosphate chromium, boric acid, water glass or spent pulping liquor.
3. according to claim 1 and 2, its finished product can be the burnt products of firing more than 1350 ℃, also can be the thermal treatment of burning till without high temperature or burned product not.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021408785A CN1513802A (en) | 2002-07-08 | 2002-07-08 | Aluminium chromium guality refractory material and its production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021408785A CN1513802A (en) | 2002-07-08 | 2002-07-08 | Aluminium chromium guality refractory material and its production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1513802A true CN1513802A (en) | 2004-07-21 |
Family
ID=34231975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021408785A Pending CN1513802A (en) | 2002-07-08 | 2002-07-08 | Aluminium chromium guality refractory material and its production method |
Country Status (1)
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|---|---|
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Cited By (19)
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|---|---|---|---|---|
| CN102531651A (en) * | 2012-01-11 | 2012-07-04 | 郑州华威耐火材料股份有限公司 | Preparation method for rebonded electrically fused chrome corundum brick |
| CN102603325A (en) * | 2012-03-16 | 2012-07-25 | 刘晨光 | Regenerative magnesium-aluminium-chromium brick and preparation method |
| CN103058672A (en) * | 2011-10-20 | 2013-04-24 | 辽宁科技大学 | Aluminum chromium-mullite refractory material and its production method |
| CN103755361A (en) * | 2013-12-20 | 2014-04-30 | 中钢集团洛阳耐火材料研究院有限公司 | Aluminum-chromium-silicon fireproof material |
| CN103755362A (en) * | 2013-12-24 | 2014-04-30 | 河南瑞泰耐火材料科技有限公司 | Coating for oxygen lance of nonferrous smelting furnace |
| CN104529494A (en) * | 2015-01-21 | 2015-04-22 | 北京科技大学 | Ferro-silicon nitride/alumina-chrome slag refractory matter for cement kiln transition zone and preparation method of refractory matter |
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| CN106431370A (en) * | 2016-09-09 | 2017-02-22 | 武汉科技大学 | Mullite raw material adopting alumina-chrome slag as main ingredient and preparation method thereof |
| CN107721443A (en) * | 2017-11-01 | 2018-02-23 | 安徽马钢耐火材料有限公司 | A kind of pink fused alumina cementitious matter and preparation method thereof |
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| CN108373321A (en) * | 2018-01-25 | 2018-08-07 | 江苏长城窑炉工程有限公司 | A kind of inner liner of rotary kiln high thermal shock chromium steel jade material and preparation method thereof and application |
| CN108623316A (en) * | 2018-05-22 | 2018-10-09 | 武汉科技大学 | Iron based on aluminium chromium slag smelts intermediate frequency furnace ramming mass and preparation method thereof |
| CN109053176A (en) * | 2018-08-31 | 2018-12-21 | 广州市石基耐火材料厂 | Mullite refractory containing chromium and preparation method thereof |
| CN109437940A (en) * | 2018-12-29 | 2019-03-08 | 河南新拓耐火材料有限公司 | One kind, which is not burnt, does not soak ladle upper nozzle and preparation method thereof |
| CN109650918A (en) * | 2019-01-31 | 2019-04-19 | 武汉科技大学 | A kind of environment-friendly type castable refractory containing chromium and preparation method thereof |
| CN110981513A (en) * | 2019-12-30 | 2020-04-10 | 马鞍山利尔开元新材料有限公司 | Chrome corundum slag-high bauxite composite carbon-free ladle down nozzle brick and preparation method thereof |
| CN111533543A (en) * | 2020-05-22 | 2020-08-14 | 中钢南京环境工程技术研究院有限公司 | High-phosphorus aluminum chromium brick for waste melting furnace and preparation method thereof |
| CN113173795A (en) * | 2021-06-09 | 2021-07-27 | 江苏君耀耐磨耐火材料有限公司 | Chromium corundum brick for sulfur recovery acid gas incinerator and preparation process thereof |
| CN115304375A (en) * | 2022-07-27 | 2022-11-08 | 上海湜清新材料科技有限公司 | Refractory material and preparation process thereof |
-
2002
- 2002-07-08 CN CNA021408785A patent/CN1513802A/en active Pending
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|---|---|---|---|---|
| CN103058672A (en) * | 2011-10-20 | 2013-04-24 | 辽宁科技大学 | Aluminum chromium-mullite refractory material and its production method |
| CN102531651A (en) * | 2012-01-11 | 2012-07-04 | 郑州华威耐火材料股份有限公司 | Preparation method for rebonded electrically fused chrome corundum brick |
| CN102531651B (en) * | 2012-01-11 | 2013-07-31 | 郑州华威耐火材料股份有限公司 | Preparation method for rebonded electrically fused chrome corundum brick |
| CN102603325A (en) * | 2012-03-16 | 2012-07-25 | 刘晨光 | Regenerative magnesium-aluminium-chromium brick and preparation method |
| CN103755361A (en) * | 2013-12-20 | 2014-04-30 | 中钢集团洛阳耐火材料研究院有限公司 | Aluminum-chromium-silicon fireproof material |
| CN103755361B (en) * | 2013-12-20 | 2016-02-17 | 中钢集团洛阳耐火材料研究院有限公司 | A kind of Aluminum-chromium-sifireproof fireproof material |
| CN103755362A (en) * | 2013-12-24 | 2014-04-30 | 河南瑞泰耐火材料科技有限公司 | Coating for oxygen lance of nonferrous smelting furnace |
| CN104529494A (en) * | 2015-01-21 | 2015-04-22 | 北京科技大学 | Ferro-silicon nitride/alumina-chrome slag refractory matter for cement kiln transition zone and preparation method of refractory matter |
| CN104529494B (en) * | 2015-01-21 | 2017-01-04 | 北京科技大学 | Transition band of cement kiln ferro-silicon nitride-aluminum chromium slag refractory material and preparation method |
| CN106242535A (en) * | 2016-08-09 | 2016-12-21 | 上海华培动力科技有限公司 | A kind of low pressure casting and suction pouring heat-resisting alloy stalk formula and preparation method thereof |
| CN106431370B (en) * | 2016-09-09 | 2019-04-26 | 武汉科技大学 | Using aluminium chromium slag as mullite synthesizing raw material of major ingredient and preparation method thereof |
| CN106431370A (en) * | 2016-09-09 | 2017-02-22 | 武汉科技大学 | Mullite raw material adopting alumina-chrome slag as main ingredient and preparation method thereof |
| CN107739195A (en) * | 2017-10-24 | 2018-02-27 | 武汉科技大学 | A kind of Ausmelt copper smelters regeneration alumina chrome brick and preparation method thereof |
| CN107721443A (en) * | 2017-11-01 | 2018-02-23 | 安徽马钢耐火材料有限公司 | A kind of pink fused alumina cementitious matter and preparation method thereof |
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| 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 |
| CN109053176A (en) * | 2018-08-31 | 2018-12-21 | 广州市石基耐火材料厂 | Mullite refractory containing chromium and preparation method thereof |
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| CN111533543A (en) * | 2020-05-22 | 2020-08-14 | 中钢南京环境工程技术研究院有限公司 | High-phosphorus aluminum chromium brick for waste melting furnace and preparation method thereof |
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