CN104402471A - Low-cost aluminum-chromium-zirconium ramming material and preparation method thereof - Google Patents
Low-cost aluminum-chromium-zirconium ramming material and preparation method thereof Download PDFInfo
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- CN104402471A CN104402471A CN201410692183.8A CN201410692183A CN104402471A CN 104402471 A CN104402471 A CN 104402471A CN 201410692183 A CN201410692183 A CN 201410692183A CN 104402471 A CN104402471 A CN 104402471A
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Abstract
The invention relates to a low-cost aluminum-chromium-zirconium ramming material. The ramming material is prepared by mixing fine powder and particles obtained by crushing used chromium-zirconium corundum air bricks and brick cups, bauxite and brown fused alumina, which serve as raw materials, as well as a bonding agent and an admixture, and comprises the following components in percentage by weight: 20 to 25 percent of coarse particles obtained by crushing the used chromium-zirconium corundum bricks and super bauxite (5-3 mm), 15 to 25 percent of medium-sized particles obtained by crushing the used chromium-zirconium corundum bricks and brown fused alumina (3-1 mm), 20 to 25 percent of fine particles obtained by crushing the used chromium-zirconium corundum bricks and brown fused alumina (1-0 mm), 25 to 30 percent of used chromium-zirconium corundum brick powder (less than or equal to 0.088 mm), 2 to 5 percent of bonding agent and 0.1 to 3 percent of admixture. A preparation method for the ramming material comprises the following steps of adding the used refractory raw materials with the particle sizes, the bonding agent and the admixture into a mixture according to the weight proportion, uniformly mixing the materials with stirring for totally 3 to 15 minutes, and performing packaging or construction. During construction, 8 to 15 weight percent of composite acid is added based on the total weight of the ramming material, and is stirred for 3 to 5 minutes. According to the ramming material, used refractory material resources can be reasonably used, and the sustainable development of an enterprise and the state is facilitated; environmental pollution caused by solid waste is reduced.
Description
Technical field
The present invention relates to the synthesis field of refractory materials, particularly a kind of low cost aluminium chromium zirconium ramming mass made based on the broken powder of used refractory and preparation method thereof.
Background technology
Refractory materials is a part indispensable during iron and steel enterprise produces.Along with the continuous increase of China's iron and steel output in recent years, the usage quantity of refractory materials, also in continuous rising, this not only adds the production cost of iron and steel, and cause a large amount of consumption of national resources, used refractory generation also increases thereupon.In the past with rear resistance to material as industrial refuse process, not only to environment, and waste the available resources with rear resistance to material.For reducing the discharge of waste, become the problem of research by rear resistance to material recycling.
Summary of the invention
The object of the invention is to provide a kind of low cost aluminium chromium zirconium ramming mass and preparation method thereof, realizes, by rear resistance to material recycling, reducing production cost, reducing the discharge of solid waste.
For achieving the above object, the present invention realizes by the following technical solutions:
A kind of low cost aluminium chromium zirconium ramming mass, with the broken fine powder of rear chromium zircon corundum gas permeable brick, brick cup and particle, alumina and Brown Alundum are raw material, mix with bonding agent, admixture, and its components by weight percent content is as follows:
By the broken coarse particles+high grade bauxite 20 ~ 25% of rear chromium zircon corundum brick, granularity is 5-3 ㎜, with particle+Brown Alundum 15 ~ 25% in the fragmentation of rear chromium zircon corundum brick, granularity is 3-1 ㎜, and with the broken fine particle+Brown Alundum 20 ~ 25% of rear chromium zircon corundum brick, granularity is 1-0 ㎜, with rear chromium zircon corundum brick powder 25 ~ 30%, granularity≤0.088 ㎜, bonding agent 2 ~ 5%, admixture 0.1 ~ 3%.
Described bonding agent is one or both in alumina powder or silicon powder.
Described admixture is oxalic acid.
Described admixture also comprise in tripoly phosphate sodium STPP or Sodium hexametaphosphate 99 one or both.
Described with rear chromium zircon corundum brick ZrO
2content is 4 ~ 5.1%, Cr
2o
3content is 2 ~ 2.9%.
The excellent alumina Al of described spy
2o
3content is 80 ~ 85%, Brown Alundum Al
2o
3content is 94.5 ~ 95.5%.
The preparation method of above-mentioned aluminium chromium zirconium ramming mass, comprises following step:
(1) after reclaiming classification, selection, the residual iron on surface, residual steel and metamorphic layer part is removed with rear chromium zircon corundum brick;
(2) by breaking with rear chromium zircon corundum brick, being ground into coarse particles, middle particle, fine particle, powder after cleaning, be divided into 5-3 ㎜, 3-1 ㎜, 1-0 ㎜ and be less than the raw material of 0.088 ㎜, tetra-kinds of different-grain diameters;
(3) raw material of four kinds of different-grain diameters and the excellent alumina of spy, Brown Alundum and bonding agent and admixture are mixed in proportion and add in stirrer, be uniformly mixed to evenly, churning time is 5 ~ 15 minutes, can pack or construct; During construction, add the acid of gross weight 8% ~ 15%, stir 3 ~ 15 minutes.
Above-mentioned preparation method's step (3), also comprising described admixture is only tripoly phosphate sodium STPP, stirs 5 ~ 15 minutes, can pack or construct during production; Add the acid of gross weight 8% ~ 15% during construction, stir 3 ~ 15 minutes.
Above-mentioned preparation method's step (3), also comprising described admixture is only Sodium hexametaphosphate 99, stirs 5 ~ 15 minutes, can pack or construct during production; Add the acid of gross weight 8% ~ 15% during construction, stir 3 ~ 15 minutes.
Above-mentioned preparation method's step (3), also comprising described admixture is tripoly phosphate sodium STPP and Sodium hexametaphosphate 99 mixture, stirs 5 ~ 15 minutes, can pack or construct during production; Add the acid of gross weight 8% ~ 15% during construction, stir 3 ~ 15 minutes.
Described acid is the Compound-acid of industrial phosphoric acid and aluminium dihydrogen phosphate, proportion 1.39 ~ 1.42g/cm
3.
Compared with prior art, the invention has the beneficial effects as follows:
Aluminium chromium zirconium ramming mass of the present invention is made based on the broken powder of used refractory, in an installation, the place such as back stall brick uses, under the prerequisite of ensuring the quality of products, reduce the cost of ramming mass, thus reduce the production cost of iron and steel, increase steel enterprise economic benefit; Reduce the consumption of national resources, used refractory resource is rationally applied, be beneficial to the Sustainable development of enterprise and country; Reduce solid waste discharge to the pollution of environment.
Embodiment
Below in conjunction with embodiment, the present invention is further described:
Following examples describe the present invention.These embodiments are only be described optimum implementation of the present invention, do not limit scope of the present invention.
Embodiment one
A kind of low cost aluminium chromium zirconium ramming mass, be made up according to components by weight percent of following material:
With the broken coarse particles (5-3 ㎜) of rear chromium zircon corundum brick: 10%; Special excellent alumina (5-3mm): 15%; With particle (3-1 ㎜) in the fragmentation of rear chromium zircon corundum brick: 10%; Brown Alundum (3-1 ㎜): 15%; With rear chromium zircon corundum brick fine particle (1-0 ㎜): 10%; Brown Alundum (3-1 ㎜): 15%; With rear chromium zircon corundum brick powder (≤0.088 ㎜): 25%; Alumina powder: 4%; Oxalic acid: 1.5%.
With rear chromium zircon corundum brick ZrO
2content is 4.2%, Cr
2o
3content is 2.5%; Special excellent alumina Al
2o
3content is 82%, Brown Alundum Al
2o
3content is 95%.
The preparation method of above-mentioned aluminium chromium zirconium ramming mass, comprises following step:
(1) after reclaiming classification, selection, the residual iron on surface, residual steel and metamorphic layer part is removed with rear chromium zircon corundum brick;
(2) by breaking with rear chromium zircon corundum brick, being ground into coarse particles, middle particle, fine particle, powder after cleaning, be divided into 5-3 ㎜, 3-1 ㎜, 1-0 ㎜ and be less than the raw material of 0.088 ㎜, tetra-kinds of different-grain diameters;
(3) raw material of four kinds of different-grain diameters and the excellent alumina of spy, Brown Alundum and alumina powder and oxalic acid are mixed in proportion, add in stirrer, be uniformly mixed to evenly, churning time is 5 ~ 15 minutes, can pack or construct; During construction, add the acid of gross weight 8% ~ 15%, stir 3 ~ 15 minutes.
Stir 5 ~ 15 minutes, can pack or construct; During construction, add the industrial phosphoric acid of gross weight 12% and the Compound-acid of aluminium dihydrogen phosphate, proportion 1.39g/cm
3, stir 3 ~ 15 minutes.
Embodiment two
A kind of low cost aluminium chromium zirconium ramming mass, be made up according to components by weight percent of following material:
With the broken coarse particles (5-3 ㎜) of rear chromium zircon corundum brick: 15%; Special excellent alumina (5-3mm): 10%: with particle (3-1 ㎜) in the fragmentation of rear chromium zircon corundum brick: 15%; Brown Alundum (3-1 ㎜): 10%; With the broken fine particle (1-0 ㎜) of rear chromium zircon corundum brick: 10%; Brown Alundum (3-1 ㎜): 15%; With rear chromium zircon corundum brick powder (≤0.088 ㎜): 25%; Silicon powder: 3%; Sodium hexametaphosphate 99: 1%.
With rear chromium zircon corundum brick ZrO
2content is 4.5%, Cr
2o
3content is 2.7%.Special excellent alumina Al
2o
3content is 85%, Brown Alundum Al
2o
3content is 95.5%.
The preparation method of above-mentioned aluminium chromium zirconium ramming mass, comprises following step:
(1) after reclaiming classification, selection, the residual iron on surface, residual steel and metamorphic layer part is removed with rear chromium zircon corundum brick;
(2) by breaking with rear chromium zircon corundum brick, being ground into coarse particles, middle particle, fine particle, powder after cleaning, be divided into 5-3 ㎜, 3-1 ㎜, 1-0 ㎜ and be less than the raw material of 0.088 ㎜, tetra-kinds of different-grain diameters;
(3) raw material of four kinds of different-grain diameters and the excellent alumina of spy, Brown Alundum and silicon powder and Sodium hexametaphosphate 99 are mixed in proportion, add in stirrer, be uniformly mixed to evenly, churning time is 5 ~ 15 minutes, can pack or construct; During construction, add the industrial phosphoric acid of gross weight 8% and the Compound-acid of aluminium dihydrogen phosphate, proportion 1.40g/cm
3, stir 3 ~ 15 minutes.
Embodiment three
A kind of low cost aluminium chromium zirconium ramming mass, be made up according to components by weight percent of following material:
With the broken coarse particles (5-3 ㎜) of rear chromium zircon corundum brick: 20%; Special excellent alumina (5-3mm): 5%: with particle (3-1 ㎜) in the fragmentation of rear chromium zircon corundum brick: 15%; Brown Alundum (3-1 ㎜): 10%; With the broken fine particle (1-0 ㎜) of rear chromium zircon corundum brick: 10%; Brown Alundum (3-1 ㎜): 15%; With rear chromium zircon corundum brick powder (≤0.088 ㎜): 25%; Alumina powder and silicon powder mixture: 3%; Tripoly phosphate sodium STPP: 1%.
With rear chromium zircon corundum brick ZrO
2content is 4.9%, Cr
2o
3content is 2.6%.Special excellent alumina Al
2o
3content is 83%, Brown Alundum Al
2o
3content is 95%.
The preparation method of above-mentioned aluminium chromium zirconium ramming mass, comprises following step:
(1) after reclaiming classification, selection, the residual iron on surface, residual steel and metamorphic layer part is removed with rear chromium zircon corundum brick;
(2) by breaking with rear chromium zircon corundum brick, being ground into coarse particles, middle particle, fine particle, powder after cleaning, be divided into 5-3 ㎜, 3-1 ㎜, 1-0 ㎜ and be less than the raw material of 0.088 ㎜, tetra-kinds of different-grain diameters;
(3) raw material of four kinds of different-grain diameters and the excellent alumina of spy, Brown Alundum and alumina powder and silicon powder mixture and tripoly phosphate sodium STPP are mixed in proportion, add in stirrer, be uniformly mixed to evenly, churning time is 5 ~ 15 minutes, can pack or construct; During construction, add the industrial phosphoric acid of gross weight 10% and the Compound-acid of aluminium dihydrogen phosphate, proportion 1.40g/cm
3, stir 3 ~ 15 minutes.
Embodiment four
A kind of low cost aluminium chromium zirconium ramming mass, be made up according to components by weight percent of following material:
With the broken coarse particles (5-3 ㎜) of rear chromium zircon corundum brick: 15%; Special excellent alumina (5-3mm): 10%: with particle (3-1 ㎜) 15% in the fragmentation of rear chromium zircon corundum brick; Brown Alundum (3-1 ㎜): 10%; With the broken fine particle (1-0 ㎜) of rear chromium zircon corundum brick: 15%; Brown Alundum (3-1 ㎜): 15%; With rear chromium zircon corundum brick powder (≤0.088 ㎜): 20%; Alumina powder and silicon powder mixture: 3%; Tripoly phosphate sodium STPP and Sodium hexametaphosphate 99 mixture: 1%.
With rear chromium zircon corundum brick ZrO
2content is 5.1%, Cr
2o
3content is 2..9%.Special excellent alumina Al
2o
3content is 82%, Brown Alundum Al
2o
3content is 94.5%.
The preparation method of above-mentioned aluminium chromium zirconium ramming mass, comprises following step:
(1) after reclaiming classification, selection, the residual iron on surface, residual steel and metamorphic layer part is removed with rear chromium zircon corundum brick;
(2) by breaking with rear chromium zircon corundum brick, being ground into coarse particles, middle particle, fine particle, powder after cleaning, be divided into 5-3 ㎜, 3-1 ㎜, 1-0 ㎜ and be less than the raw material of 0.088 ㎜, tetra-kinds of different-grain diameters;
(3) raw material of four kinds of different-grain diameters and the excellent alumina of spy, Brown Alundum and alumina powder and silicon powder mixture and tripoly phosphate sodium STPP and Sodium hexametaphosphate 99 mixture are mixed in proportion, add in stirrer, be uniformly mixed to evenly, churning time is 5 ~ 15 minutes, can pack or construct; During construction, add the industrial phosphoric acid of gross weight 15% and the Compound-acid of aluminium dihydrogen phosphate, proportion 1.40g/cm
3, stir 3 ~ 15 minutes.
Claims (9)
1. a low cost aluminium chromium zirconium ramming mass, is characterized in that, with the broken fine powder of rear chromium zircon corundum gas permeable brick, brick cup and particle, alumina and Brown Alundum are raw material, mix with bonding agent, admixture, and its components by weight percent content is as follows:
By the broken coarse particles+high grade bauxite 20 ~ 25% of rear chromium zircon corundum brick, granularity is 5-3 ㎜, and with particle+Brown Alundum 15 ~ 25% in the fragmentation of rear chromium zircon corundum brick, granularity is 3-1 ㎜, with the broken fine particle+Brown Alundum 20 ~ 25% of rear chromium zircon corundum brick, granularity is 1-0 ㎜, with rear chromium zircon corundum brick powder 25 ~ 30%, granularity≤0.088 ㎜, bonding agent 2 ~ 5%, admixture 0.1 ~ 3%, described bonding agent is one or both in alumina powder or silicon powder, and described admixture is oxalic acid.
2. a kind of low cost aluminium chromium zirconium ramming mass according to claim 1, is characterized in that, described admixture also comprise in tripoly phosphate sodium STPP or Sodium hexametaphosphate 99 one or both.
3. a kind of low cost aluminium chromium zirconium ramming mass according to claim 1, is characterized in that, described with rear chromium zircon corundum brick ZrO
2content is 4 ~ 5.1%, Cr
2o
3content is 2 ~ 2.9%.
4. a kind of low cost aluminium chromium zirconium ramming mass according to claim 1, is characterized in that, the excellent alumina Al of described spy
2o
3content is 80 ~ 85%, Brown Alundum Al
2o
3content is 94.5 ~ 95.5%.
5. the preparation method of low cost aluminium chromium zirconium ramming mass according to claim 1, is characterized in that, comprise following step:
(1) after reclaiming classification, selection, the residual iron on surface, residual steel and metamorphic layer part is removed with rear chromium zircon corundum brick;
(2) by breaking with rear chromium zircon corundum brick, being ground into coarse particles, middle particle, fine particle, powder after cleaning, be divided into 5-3 ㎜, 3-1 ㎜, 1-0 ㎜ and be less than the raw material of 0.088 ㎜, tetra-kinds of different-grain diameters;
(3) raw material of four kinds of different-grain diameters and the excellent alumina of spy, Brown Alundum and bonding agent and admixture are mixed in proportion and add in stirrer, be uniformly mixed to evenly, churning time is 5 ~ 15 minutes, can pack or construct; During construction, add the acid of gross weight 8% ~ 15%, stir 3 ~ 15 minutes.
6. the preparation method of low cost aluminium chromium zirconium ramming mass according to claim 5, is characterized in that, described step (3), and also comprising described admixture is only tripoly phosphate sodium STPP, stirs 5 ~ 15 minutes, can pack or construct during production; Add the acid of gross weight 8% ~ 15% during construction, stir 3 ~ 15 minutes.
7. the preparation method of low cost aluminium chromium zirconium ramming mass according to claim 5, is characterized in that, described step (3), and also comprising described admixture is only Sodium hexametaphosphate 99, stirs 5 ~ 15 minutes, can pack or construct during production; Add the acid of gross weight 8% ~ 15% during construction, stir 3 ~ 15 minutes.
8. the preparation method of low cost aluminium chromium zirconium ramming mass according to claim 5, it is characterized in that, described step (3), also comprising described admixture is tripoly phosphate sodium STPP and Sodium hexametaphosphate 99 mixture, stir 5 ~ 15 minutes during production, can pack or construct; Add the acid of gross weight 8% ~ 15% during construction, stir 3 ~ 15 minutes.
9. the preparation method of low cost aluminium chromium zirconium ramming mass according to claim 5, it is characterized in that, described acid is the Compound-acid of industrial phosphoric acid and aluminium dihydrogen phosphate, proportion 1.39 ~ 1.42g/cm
3.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106810282A (en) * | 2017-03-01 | 2017-06-09 | 宋林祥 | The method for producing ramming mass using the useless brick of AZS |
| CN106882972A (en) * | 2017-03-01 | 2017-06-23 | 宋林祥 | The recoverying and utilizing method of AZS grinding waste material |
| CN110835260A (en) * | 2018-08-16 | 2020-02-25 | 上海皕涛耐火材料有限公司 | High-wear-resistance chrome corundum ramming material and application thereof |
| CN110845247A (en) * | 2019-12-18 | 2020-02-28 | 攀枝花钢城集团有限公司 | Low-cost RH ramming material and preparation method thereof |
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| CN102898160A (en) * | 2012-10-18 | 2013-01-30 | 锦州英明耐火材料有限公司 | Preparation method for regenerated chromium and zirconium corundum brick |
| CN103253948A (en) * | 2013-05-13 | 2013-08-21 | 德清县力拓炉料有限公司 | Method for preparing dry-ramming material for metallurgical intermediate frequency furnace |
| CN103274713A (en) * | 2013-06-28 | 2013-09-04 | 上海智环建设工程有限公司 | High-aluminum ramming material adopting zirconium oxychloride as additive |
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2014
- 2014-11-26 CN CN201410692183.8A patent/CN104402471B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102898160A (en) * | 2012-10-18 | 2013-01-30 | 锦州英明耐火材料有限公司 | Preparation method for regenerated chromium and zirconium corundum brick |
| CN103253948A (en) * | 2013-05-13 | 2013-08-21 | 德清县力拓炉料有限公司 | Method for preparing dry-ramming material for metallurgical intermediate frequency furnace |
| CN103274713A (en) * | 2013-06-28 | 2013-09-04 | 上海智环建设工程有限公司 | High-aluminum ramming material adopting zirconium oxychloride as additive |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106810282A (en) * | 2017-03-01 | 2017-06-09 | 宋林祥 | The method for producing ramming mass using the useless brick of AZS |
| CN106882972A (en) * | 2017-03-01 | 2017-06-23 | 宋林祥 | The recoverying and utilizing method of AZS grinding waste material |
| CN106810282B (en) * | 2017-03-01 | 2020-03-24 | 宋林祥 | Method for producing ramming mass by using waste fused zirconia corundum bricks |
| CN106882972B (en) * | 2017-03-01 | 2020-03-24 | 宋林祥 | Recycling method of fused zirconia corundum grinding waste |
| CN110835260A (en) * | 2018-08-16 | 2020-02-25 | 上海皕涛耐火材料有限公司 | High-wear-resistance chrome corundum ramming material and application thereof |
| CN110835260B (en) * | 2018-08-16 | 2022-11-18 | 上海皕涛耐火材料有限公司 | High-wear-resistance chrome corundum ramming material and application thereof |
| CN110845247A (en) * | 2019-12-18 | 2020-02-28 | 攀枝花钢城集团有限公司 | Low-cost RH ramming material and preparation method thereof |
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| CN104402471B (en) | 2016-06-22 |
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