CN100491098C - Slurry-bound firebrick formation method - Google Patents
Slurry-bound firebrick formation method Download PDFInfo
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- CN100491098C CN100491098C CNB2005101072737A CN200510107273A CN100491098C CN 100491098 C CN100491098 C CN 100491098C CN B2005101072737 A CNB2005101072737 A CN B2005101072737A CN 200510107273 A CN200510107273 A CN 200510107273A CN 100491098 C CN100491098 C CN 100491098C
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- powder
- mud
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- slurry
- mixed grind
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Abstract
The slurry combined refractory brick forming process has raised mixing homogeneity of slurry for refractory brick, raised strength and bulk density, lowered porosity, raised high temperature performance and raised service life of refractory brick. The technological scheme of the present invention is that one or several kinds of refractory powder are added into wet grinding mill, mixed and ground to form homogeneous slurry. The refractory powder may be high alumina powder, magnesite powder, clay powder, apyre powder, etc. The slurry is then added into granular base material to be mixed and rolled, so that slurry coats the granular material and during mixing and rolling, fine powder of base material is added. The mixed and rolled material is finally formed in a press to form semi-finished product with high strength and resulting in high finished product rate and high heat resisting performance of the sintered product.
Description
One, technical field
The present invention relates to a kind of forming method with slurry-bound firebrick.
Two, technical background
At present refractory brick mainly relies on and adds entry or lignin liquor carries out connecting shaping, but adopts water in conjunction with the semi-finished product intensity difference, and arrisdefect falls rib easily, reduces qualification rate; Adopt the lignin liquor combination, this not only increases production cost of products, and because the viscosity of lignin own be easy to generate lignin walk size segregation when mud stone roller machine stirs, influences the physicochemical property and the product quality of water-fast brick.
Three, summary of the invention
At above-mentioned situation, the present invention's purpose is to overcome the defective when having the refractory brick moulding now and a kind of forming method with slurry-bound firebrick is provided, can effectively solve the low problem of semi-finished product intensity difference qualification rate, thereby improve the mixture homogeneity of refractory brick pug, improve the intensity bulk density of refractory brick, reduce the porosity, improve the high-temperature behavior of refractory brick, increase the service life, the technical scheme that the present invention solves is to add in the levigator in proportion with more than one refractory powder, through mix grinding, make its refractory powder add water and be mixed into uniform mud fully, said mud refractory powder is a high-alumina fly magnesia powder clay powder, andalusite powder etc., then mud is added and treat in the particulate material of mixed grind base-material, make mud be wrapped in the particulate material surface fully, add the fine powder of base-material after the mixed grind, continue mixed grind, be transported to the forcing press moulding, the semi-finished product intensity height of being suppressed, the yield rate height, the finished product high-temperature behavior of firing is good.
Four specific embodiment
Below in conjunction with concrete condition, the specific embodiment of the present invention is elaborated.
Provide by above-mentioned, the present invention is with fire-resistant mineral powder 10-40% clay powder 20-40% and water 30-50% by the weight meter, total amount is 100% material-mud that constitutes, at first in proportion fire-resistant mineral powder and clay powder are added in the levigator with water through mix grinding, make it be mixed into uniform mud fully, add mud in the mixed grind more then, mix mutually with the particulate material in treating mixed grind refractory brick base-material, the mud addition is the 5-15% of refractory brick base-material weight, make mud be wrapped in particle surface fully through mixed grind, add the refractory powder in the refractory brick base-material after the mixed grind again, after the continuation mixed grind is even, by the make-up machine moulding.
Above-mentioned said particulate material is high alumina granulated aggregate or flint clay granulated aggregate or andalusite granulated aggregate, and said refractory powder is that high alumina fine powder or well as clay fines or andalusite are thin etc., in weight percent, its said refractory brick base-material by:
Refractory particle aggregate 50-60% and refractory powder 40-50%, total amount is 100% composition.
Embodiment 1: be example with the high-alumina brick, by weight, mud adopts high-alumina fly 20%-40% clay powder 20%-40% and water 30%-50% to form, add in the levigator according to the above ratio, through mix grinding greater than 2 hours, its fine powder is mixed fully, fineness is greater than 300 orders, then prepared mud is added in the bauxites aggregate of mixed grind base-material, addition is 10% of a fire-resistant base material total amount, makes mud be wrapped in the particulate material surface fully, after mixed grind added the refractory powder of base-material after 2 minutes, continued mixed grind 10 minutes, be transported to the forcing press shaping and drying, burn till the back and detect its physical and chemical index, compare test with the similar high-alumina brick of water combination and learn, the porosity reduces 2%-6%, and bulk density increases 0.10g/cm
3-0.28g/cm
3, loading softening begins temperature and improves 10-50 ℃.
Example example 2: with the anti-thermal shock brick is example, by weight, mud adopts andalusite powder 20-40%, clay powder 20-30% and water 30-50%, add in the levigator according to the above ratio, through mix grinding greater than 2 hours, its fine powder is mixed fully, fineness adds prepared mud in the andalusite granulated aggregate of mixed grind base-material then greater than 300 orders, and its addition is 12% of a fire-resistant base material total amount, make mud be wrapped in the particulate material surface fully, after mixed grind added the fine powder of base-material after 2 minutes, continued mixed grind 10 minutes, be transported to the forcing press shaping and drying and burn till its physical and chemical index of back detection, comparing test with the similar anti-thermal shock brick of water combination learns, thermal shock resistance can improve (1100 ℃ of water-cooled tests) more than 40 times, and the porosity reduces 2-6%, and bulk density increases 0.15-0.25g/cm
3, loading softening begins temperature and improves 50-80 ℃.
It should be appreciated that especially, so the combination of core of the present invention in having changed the refractory brick moulding, promptly by water or lignin liquor combination, innovation is the mud combination, other are still the employing prior art substantially, comprise the base furnish and the use equipment of refractory brick, and the present invention is owing to be the formed with slurry binding method that adopts original creation, effectively having overcome the low problem of former semi-finished product intensity difference qualification rate, is to existing refractory brick moulding inventive improvements.
Claims (3)
1, a kind of forming method with slurry-bound firebrick, it is characterized in that, fire-resistant mineral powder 10-40% by the weight meter, clay powder 20-40% and water 30-50%, total amount is 100% material-mud that constitutes, at first in proportion fire-resistant mineral powder and clay powder are added in the levigator with water through mix grinding, make it be mixed into uniform mud fully, add mud in the mixed grind more then, mix mutually with the particulate material for the treatment of mixed grind refractory brick base-material, the mud addition is the 5-15% of particulate material weight, make mud be wrapped in particle surface fully through mixed grind, the refractory powder that adds base-material after the mixed grind again is after the continuation mixed grind is even, by the make-up machine moulding, said refractory brick base-material is by the weight meter: refractory particle aggregate 50-60% and refractory powder 40-50%, total amount is 100% to form.
2, a kind of forming method according to claim 1 with slurry-bound firebrick, it is characterized in that it being by weight, mud adopts high-alumina fly 20%-40%, clay powder 20%-40% and water 30%-50% form, add in the levigator according to the above ratio, through mix grinding greater than 2 hours, its fine powder is mixed fully, fineness is greater than 300 orders, then prepared mud is added in the bauxites aggregate of mixed grind base-material, addition is 10% of a fire-resistant base material total amount, makes mud be wrapped in the particulate material surface fully, after mixed grind added the refractory powder of base-material after 2 minutes, continued mixed grind 10 minutes, by the pressure forming machine moulding.
3, a kind of forming method according to claim 1 with slurry-bound firebrick, it is characterized in that it being by weight, mud adopts andalusite powder 20-40%, clay powder 20-30% and water 30-50%, add in the levigator according to the above ratio, through mix grinding greater than 2 hours, its fine powder is mixed fully, fineness adds prepared mud in the andalusite granulated aggregate of mixed grind base-material then greater than 300 orders, and its addition is 12% of a fire-resistant base material total amount, make mud be wrapped in the particulate material surface fully, after mixed grind added the fine powder of base-material after 2 minutes, continued mixed grind 10 minutes, by the pressure forming machine moulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101072737A CN100491098C (en) | 2005-12-15 | 2005-12-15 | Slurry-bound firebrick formation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101072737A CN100491098C (en) | 2005-12-15 | 2005-12-15 | Slurry-bound firebrick formation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1788963A CN1788963A (en) | 2006-06-21 |
| CN100491098C true CN100491098C (en) | 2009-05-27 |
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ID=36787168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101072737A Expired - Fee Related CN100491098C (en) | 2005-12-15 | 2005-12-15 | Slurry-bound firebrick formation method |
Country Status (1)
| Country | Link |
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| CN (1) | CN100491098C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103373856B (en) * | 2012-04-26 | 2015-05-20 | 郑州安耐克实业有限公司 | High-stress-strain low-creepage high-thermal-shock-resistance refractory brick and manufacturing method thereof |
| CN107010972A (en) * | 2017-05-09 | 2017-08-04 | 郑州耐都热陶瓷有限公司 | High-temperature wearable mud |
| CN111675546A (en) * | 2020-06-23 | 2020-09-18 | 郑州凯翔耐火材料有限公司 | Thermal shock resistant high-alumina brick and preparation method thereof |
| CN111635238A (en) * | 2020-06-23 | 2020-09-08 | 郑州凯翔耐火材料有限公司 | Low-porosity high-thermal-shock-resistance clay brick and preparation method thereof |
-
2005
- 2005-12-15 CN CNB2005101072737A patent/CN100491098C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1788963A (en) | 2006-06-21 |
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Granted publication date: 20090527 Termination date: 20141215 |
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