CN102040382A - Processing process of magnesium-zirconium sand - Google Patents
Processing process of magnesium-zirconium sand Download PDFInfo
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- CN102040382A CN102040382A CN2009100362815A CN200910036281A CN102040382A CN 102040382 A CN102040382 A CN 102040382A CN 2009100362815 A CN2009100362815 A CN 2009100362815A CN 200910036281 A CN200910036281 A CN 200910036281A CN 102040382 A CN102040382 A CN 102040382A
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Abstract
The invention discloses a processing process of magnesium-zirconium sand, relating to the magnesium-zirconium sand as a refractory material and a processing process thereof. The magnesium-zirconium sand comprises the following components in percentage by weight: 70-90 percent of high-purity magnesia sand and 9-31 percent of zircon sand; furthermore, the zircon sand comprises the following two components in percentage by weight: larger than 65% of zirconium dioxide, and larger than 33% of silicon dioxide. In comparison with the traditional high-purity magnesia, the magnesium-zirconium sand prepared by the invention has better thermal shock resistance, higher refractoriness under load and better slag penetration resistance.
Description
Technical field
The present invention relates to a kind of magnesium zircon sand and complete processing thereof as used for refractory material, this refractory materials is a major ingredient with the periclasite principal crystalline phase, is widely used in the refractory materials on the various Thermal Equipments in the industries such as iron and steel, metallurgy, cement kiln, petrochemical complex.
Background technology
As refractory materials commonly used, the application of highly-purity magnesite is very extensive, but,, particularly require to have heat-shock resistance preferably, higher refractoriness under load and resistance to slag corrosion to the demands for higher performance of refractory materials along with developing rapidly of iron and steel, Glass lamp industry; But present highly-purity magnesite does not generally satisfy this demand, so added the material of zr element in the present highly-purity magnesite, to improve the performance of its each side, obtained the comparatively refractory materials of ideal performance, but adding zr element and other component ratio differ in each production firm, quality is uneven, and the magnesium zircon sand quality that a lot of production firms produce can not get guaranteeing.
Summary of the invention
The present invention is directed to above-mentioned defective, purpose is to provide a kind of to be had good thermal shock resistance performance and has the magnesium zircon sand and the complete processing thereof of higher refractoriness under load and resistance to slag corrosion.
Technical scheme of the present invention is: the component that the present invention is right includes highly-purity magnesite, zircon sand, its weight percent is: highly-purity magnesite 70%-90%, zircon sand 9%-31%, further the weight percent of two groups of components in the zircon sand is: zirconium dioxide is greater than 65%, and silicon-dioxide is greater than 33%.
Content of magnesia in the described highly-purity magnesite accounts for more than 97% of its gross weight.
Magnesium zircon sand of the present invention, undertaken by following processing step: earlier highly-purity magnesite, zircon sand are got the raw materials ready in proportion, drop into grinding aid then and grind, the weight of grinding aid is the 0.01%-0.5% of above-mentioned two kinds of major ingredients; With improved grinding to fineness is 0.1-10 μ m; Then it is inserted in the nodulizer, and add wedding agent and material water, material water add-on is the 10%-25% of weight of material; Being processed into diameter in nodulizer is the ball base of 15mm-35mm, and the density of ball base is 1.5g/cm
3-2.5g/cm
3Under 1700 ℃-1900 ℃ condition, calcine moulding in 12-20 hour through high temperature vertical kiln after the oven dry at last.
Described grinding aid is trolamine, ethylene glycol, sodium polyphosphate, stearic one or more mixtures.
Described wedding agent is yellow starch gum or wooden calcium sulfonate.
Add zircon sand and produce according to above-mentioned technology obtaining magnesium zircon sand according to aforementioned proportion, the more traditional highly-purity magnesite of producing of magnesium zircon sand has more good thermal shock resistance performance, higher refractoriness under load and resistance to slag corrosion.
Embodiment
Embodiment one
Component of the present invention includes highly-purity magnesite, zircon sand, and its weight percent is: highly-purity magnesite 70%, and zircon sand 30%, further the weight percent of two groups of components in the zircon sand is: zirconium dioxide is greater than 65%, and silicon-dioxide is greater than 33%.
Content of magnesia in the described highly-purity magnesite accounts for more than 97% of its gross weight.
The present invention is undertaken by following processing step: earlier highly-purity magnesite, zircon sand are got the raw materials ready in proportion, drop into grinding aid then and grind, the weight of grinding aid is 0.01% of above-mentioned two kinds of major ingredients; With improved grinding to fineness is 0.1 μ m; Then it is inserted in the nodulizer, and add wedding agent and material water, material water add-on is 10% of a weight of material; Being processed into diameter in nodulizer is the ball base of 15mm, and the density of ball base is 1.5g/cm
3Under 1700 ℃ condition, calcine moulding in 12 hours through high temperature vertical kiln after the oven dry at last.
Described grinding aid is trolamine, ethylene glycol, sodium polyphosphate, stearic one or more mixtures.
Described wedding agent is yellow starch gum or wooden calcium sulfonate.
Embodiment two
Component of the present invention includes highly-purity magnesite, zircon sand, and its weight percent is: highly-purity magnesite 90%, and zircon sand 10%, further the weight percent of two groups of components in the zircon sand is: zirconium dioxide is greater than 65%, and silicon-dioxide is greater than 33%.
Content of magnesia in the described highly-purity magnesite accounts for more than 97% of its gross weight.
The present invention is undertaken by following processing step: earlier highly-purity magnesite, zircon sand are got the raw materials ready in proportion, drop into grinding aid then and grind, the weight of grinding aid is 0.5% of above-mentioned two kinds of major ingredients; With improved grinding to fineness is 10 μ m; Then it is inserted in the nodulizer, and add wedding agent and material water, material water add-on is 25% of a weight of material; Being processed into diameter in nodulizer is the ball base of 35mm, and the density of ball base is 2.5g/cm
3Under 1900 ℃ condition, calcine moulding in 20 hours through high temperature vertical kiln after the oven dry at last.
Described grinding aid is trolamine, ethylene glycol, sodium polyphosphate, stearic one or more mixtures.
Described wedding agent is yellow starch gum or wooden calcium sulfonate.
Embodiment three
Component of the present invention includes highly-purity magnesite, zircon sand, and its weight percent is: highly-purity magnesite 80%, and zircon sand 20%, further the weight percent of two groups of components in the zircon sand is: zirconium dioxide is greater than 65%, and silicon-dioxide is greater than 33%.
Content of magnesia in the described highly-purity magnesite accounts for more than 97% of its gross weight.
The present invention is undertaken by following processing step: earlier highly-purity magnesite, zircon sand are got the raw materials ready in proportion, drop into grinding aid then and grind, the weight of grinding aid is 0.2% of above-mentioned two kinds of major ingredients; With improved grinding to fineness is 5 μ m; Then it is inserted in the nodulizer, and add wedding agent and material water, material water add-on is 15% of a weight of material; Being processed into diameter in nodulizer is the ball base of 25mm, and the density of ball base is 2g/cm
3Under 1800 ℃ condition, calcine moulding in 16 hours through high temperature vertical kiln after the oven dry at last.
Described grinding aid is trolamine, ethylene glycol, sodium polyphosphate, stearic one or more mixtures.
Described wedding agent is yellow starch gum or wooden calcium sulfonate.
Claims (5)
1. magnesium zircon sand, its component includes highly-purity magnesite, zircon sand, it is characterized in that, its weight percent is: highly-purity magnesite 70%-90%, zircon sand 9%-31%, further the weight percent of two groups of components in the zircon sand is: zirconium dioxide is greater than 65%, and silicon-dioxide is greater than 33%.
2. zirconium mullite according to claim 1 is characterized in that the content of magnesia in the described highly-purity magnesite accounts for more than 97% of its gross weight.
3. the complete processing of magnesium zircon sand is characterized in that, is undertaken by following processing step: earlier highly-purity magnesite, zircon sand are got the raw materials ready in proportion, drop into grinding aid then and grind, the weight of grinding aid is the 0.01%-0.5% of above-mentioned two kinds of major ingredients; With improved grinding to fineness is 0.1-10 μ m; Then it is inserted in the nodulizer, and add wedding agent and material water, material water add-on is the 10%-25% of weight of material; Being processed into diameter in nodulizer is the ball base of 15mm-35mm, and the density of ball base is 1.5g/cm
3-2.5g/cm
3Under 1700 ℃-1900 ℃ condition, calcine moulding in 12-20 hour through high temperature vertical kiln after the oven dry at last.
4. the complete processing of magnesium zircon sand according to claim 3 is characterized in that, described grinding aid is trolamine, ethylene glycol, sodium polyphosphate, stearic one or more mixtures.
5. the complete processing of magnesium zircon sand according to claim 3 is characterized in that, described wedding agent is yellow starch gum or wooden calcium sulfonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100362815A CN102040382A (en) | 2009-10-13 | 2009-10-13 | Processing process of magnesium-zirconium sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100362815A CN102040382A (en) | 2009-10-13 | 2009-10-13 | Processing process of magnesium-zirconium sand |
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| CN102040382A true CN102040382A (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100362815A Pending CN102040382A (en) | 2009-10-13 | 2009-10-13 | Processing process of magnesium-zirconium sand |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381882A (en) * | 2011-07-27 | 2012-03-21 | 浙江自立股份有限公司 | Zirconium oxide refractory with homogeneous micro-crystallized structure and preparation method thereof |
| CN105000867A (en) * | 2015-06-26 | 2015-10-28 | 辽宁中兴矿业集团有限公司 | Low creep magnesium composite material for glass kilns and preparation method thereof |
| CN106747157A (en) * | 2016-11-24 | 2017-05-31 | 天津航空机电有限公司 | A kind of packing material for detector cavity |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101544501A (en) * | 2009-05-07 | 2009-09-30 | 中国建筑材料科学研究院大石桥镁砖厂 | Forsterite zirconia brick and producing method thereof |
-
2009
- 2009-10-13 CN CN2009100362815A patent/CN102040382A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101544501A (en) * | 2009-05-07 | 2009-09-30 | 中国建筑材料科学研究院大石桥镁砖厂 | Forsterite zirconia brick and producing method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 刘孝定: "含锆复合相结合镁砖的研究", 《耐火材料》 * |
| 王继宝等: "烧成温度和ZrO2含量对镁锆制品烧结性能的影响", 《耐火材料》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381882A (en) * | 2011-07-27 | 2012-03-21 | 浙江自立股份有限公司 | Zirconium oxide refractory with homogeneous micro-crystallized structure and preparation method thereof |
| CN102381882B (en) * | 2011-07-27 | 2013-09-11 | 浙江自立股份有限公司 | Zirconium oxide refractory with homogeneous micro-crystallized structure and preparation method thereof |
| CN105000867A (en) * | 2015-06-26 | 2015-10-28 | 辽宁中兴矿业集团有限公司 | Low creep magnesium composite material for glass kilns and preparation method thereof |
| CN106747157A (en) * | 2016-11-24 | 2017-05-31 | 天津航空机电有限公司 | A kind of packing material for detector cavity |
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Application publication date: 20110504 |