CN103482990B - Coke oven head hot repair material and preparation method thereof - Google Patents
Coke oven head hot repair material and preparation method thereof Download PDFInfo
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- CN103482990B CN103482990B CN201310406640.8A CN201310406640A CN103482990B CN 103482990 B CN103482990 B CN 103482990B CN 201310406640 A CN201310406640 A CN 201310406640A CN 103482990 B CN103482990 B CN 103482990B
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- Prior art keywords
- coke oven
- coke
- standing
- preparation
- silica brick
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- 239000000463 material Substances 0.000 title claims abstract description 28
- 239000000571 coke Substances 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000011449 brick Substances 0.000 claims abstract description 18
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 14
- HIGRAKVNKLCVCA-UHFFFAOYSA-N alumine Chemical compound C1=CC=[Al]C=C1 HIGRAKVNKLCVCA-UHFFFAOYSA-N 0.000 claims description 8
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 8
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 8
- 239000011863 silicon-based powder Substances 0.000 claims description 8
- 229910019142 PO4 Inorganic materials 0.000 claims description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 4
- 239000010452 phosphate Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 2
- RGPUVZXXZFNFBF-UHFFFAOYSA-K diphosphonooxyalumanyl dihydrogen phosphate Chemical compound [Al+3].OP(O)([O-])=O.OP(O)([O-])=O.OP(O)([O-])=O RGPUVZXXZFNFBF-UHFFFAOYSA-K 0.000 claims description 2
- 239000000284 extract Substances 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract description 3
- 229910052905 tridymite Inorganic materials 0.000 abstract description 3
- 229910052593 corundum Inorganic materials 0.000 abstract description 2
- 239000010431 corundum Substances 0.000 abstract description 2
- 239000013078 crystal Substances 0.000 abstract description 2
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052863 mullite Inorganic materials 0.000 abstract description 2
- 239000000843 powder Substances 0.000 abstract description 2
- 229910052710 silicon Inorganic materials 0.000 abstract 4
- 239000010703 silicon Substances 0.000 abstract 4
- 239000002699 waste material Substances 0.000 abstract 2
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910001570 bauxite Inorganic materials 0.000 abstract 1
- 239000002694 phosphate binding agent Substances 0.000 abstract 1
- 238000003672 processing method Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Ceramic Products (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention provides a coke oven head hot repair material and a preparation method thereof, wherein the coke oven head hot repair material comprises the following raw materials in percentage by weight: 45-55% of aluminum silicate aggregate, 12-25% of waste silicon brick, 15-25% of high-alumina bauxite, 5-20% of silicon micropowder and 8-15% of phosphate binder. And mixing the raw materials extracted according to the weight percentage in a stirrer for 10-30 minutes, uniformly mixing, then putting into a sealed barrel, standing for 2-3 days, and standing for standing to obtain the coke oven end thermal repairing material. The main crystal phases of the hot patching material are corundum and mullite, so that the hot patching material is good in thermal shock resistance and strong in wear resistance; the tridymite processing method has the advantages that the tridymite processing degree of the waste silicon brick powder is high, the high-temperature volume stability of the material can be improved, the material can be well and tightly combined with a silicon brick matrix, the situation that the material is not cracked and shrunk in a thermal state is guaranteed, and the service life of the furnace end is prolonged. The surface of the repaired furnace head part is smooth, and the phenomenon of secondary coke caused by coke clamping frames can be avoided.
Description
Technical field
The invention belongs to coking fire resisting material field, be specifically related to a kind of thermal repairing material for coke oven end and preparation method thereof.
Background technology
Coke oven end position is in daily production operation, violent because repeatedly winning fire door temperature variation, and easily by deterioration, especially stove shoulder region directly contacts with ironware, and heat loss is large, and damage intensity is serious.At coke oven end of life, stove shoulder seam gap can expand further, causes coke to press from both sides frame, and coke pushing difficulty even produces secondary burnt.Because coke oven is built by laying bricks or stones primarily of silica brick, the special transformation of crystal of silica brick is irreversible, do not allow to carry out cold conditions repairing, what chamotte etc. were common smear mends pug and can crack contraction when hot patching, and intensity does not reach requirement after repairing, the bridging time is short, and serious meeting causes matrix silica brick to damage further.
Summary of the invention
It is good that the present invention aims to provide a kind of thermal shock resistance, and intensity is high, is combined closely with silica brick matrix, do not split and do not contract under hot, can extend the coke oven end thermal repairing material in burner work-ing life and preparation method thereof.
For reaching this object, this invention takes following technical solution:
A kind of coke oven end thermal repairing material, it is characterized in that, its material composition wt% is:
Aluminosilicate property aggregate 45% ~ 55%, useless silica brick 12% ~ 25%, alumine 15% ~ 25%, silicon powder 5% ~ 20%, phosphate binders 8% ~ 15%;
Described aluminosilicate property aggregate size≤2mm, useless silica brick granularity≤1mm, alumine granularity is less than 200 orders, and silicon powder granularity is less than 300 orders.
Described phosphate binders is one or both in phosphoric acid, aluminium dihydrogen phosphate.
Al in described aluminosilicate property aggregate
2o
3>=60wt%, SiO in useless silica brick
2>=92wt%, Al in alumine
2o
3>=75wt%, SiO in silicon powder
2>=92wt%.
A preparation method for above-mentioned coke oven end thermal repairing material, is characterized in that, by the raw material that extracts according to above-mentioned weight percent batch mixing 10 ~ 30 minutes in stirrer, loads after sealing bucket leaves standstill 2 ~ 3 days and wake up material, obtained coke oven end thermal repairing material after being mixed.
Beneficial effect of the present invention is:
Because thermal repairing material principal crystalline phase of the present invention is corundum and mullite, its good thermal shock, and wear resistance is strong; Containing useless silica brick powder in raw material, tridymite degree is high, can improve the high volume stability of material, improve the adhesiveproperties of material and coking chamber simultaneously, can combine closely with silica brick matrix preferably, ensure hot under do not split and do not contract, thus extend burner work-ing life.Burner position is smooth through repairing rear surface, and protecting sheet no longer continues distortion, and coke pushing is smooth, and coke pushing current is stabilized in range of normal value, can avoid the burnt phenomenon of secondary produced because of coke folder frame.
Embodiment
Raw material prepares: in the standby raw material of institute: aluminosilicate property aggregate size 0 ~ 2mm, and Al
2o
3>=60wt%; Useless silica brick granularity 0 ~ 1mm, and SiO
2>=92wt%; Alumine granularity < 200 order, and Al
2o
3>=75wt%; Silicon powder granularity < 300 order, and SiO
2>=92wt%.
By aluminosilicate property particles of aggregates, useless silica brick particle, alumine micro mist, silicon powder and bonding agent, fully mix according to ratio in table 1, batch mixing 20 minutes in stirrer, load sealing bucket after being mixed and leave standstill 2 days awake material, obtained coke oven end thermal repairing material.
Table 1 embodiment feed composition proportioning table
Table 2 gives the comparative result of embodiment and comparative example.
Table 2 embodiment and comparative example results contrast table
| End flue temperature | Engineering time | Bridging situation | Set time | The bridging time | |
| Comparative example | >1000℃ | 1.5h | Air spots, has crackle | 15s | 2 months |
| Embodiment 1 | >1000℃ | 2.5h | Surfacing, flawless | 20s | 18 months |
| Embodiment 2 | 900℃ | 2h | Surfacing, flawless | 25s | 11 months |
| Embodiment 3 | 850℃ | 2h | Surfacing, flawless | 30s | 9 months |
Claims (3)
1. a coke oven end thermal repairing material, is characterized in that, its material composition wt% is:
Aluminosilicate property aggregate 45% ~ 55%, useless silica brick 12% ~ 25%, alumine 15% ~ 25%, silicon powder 5% ~ 20%, phosphate binders 8% ~ 15%;
Described aluminosilicate property aggregate size≤2mm, useless silica brick granularity≤1mm, alumine granularity is less than 200 orders, and silicon powder granularity is less than 300 orders;
Al in described aluminosilicate property aggregate
2o
3>=60wt%, SiO in useless silica brick
2>=92wt%, Al in alumine
2o
3>=75wt%, SiO in silicon powder
2>=92wt%.
2. coke oven end thermal repairing material according to claim 1, is characterized in that, described phosphate binders is one or both in phosphoric acid, aluminium dihydrogen phosphate.
3. a preparation method for coke oven end thermal repairing material as claimed in claim 1, is characterized in that, by the raw material that extracts according to weight percent batch mixing 10 ~ 30 minutes in stirrer, loads sealing bucket and leave standstill 2 ~ 3 days and wake up material after being mixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310406640.8A CN103482990B (en) | 2013-09-06 | 2013-09-06 | Coke oven head hot repair material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310406640.8A CN103482990B (en) | 2013-09-06 | 2013-09-06 | Coke oven head hot repair material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103482990A CN103482990A (en) | 2014-01-01 |
| CN103482990B true CN103482990B (en) | 2015-05-06 |
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|---|---|---|---|
| CN201310406640.8A Active CN103482990B (en) | 2013-09-06 | 2013-09-06 | Coke oven head hot repair material and preparation method thereof |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103864440A (en) * | 2014-01-27 | 2014-06-18 | 宜兴市丁山耐火器材有限公司 | Silicon carbide brick for dry quenching furnace and preparation method thereof |
| CN105777155B (en) * | 2014-09-02 | 2019-05-03 | 马鞍山华盛冶金科技发展有限公司 | A kind of preparation method of skimming equipment refractory aggregate |
| CN105084913A (en) * | 2014-12-19 | 2015-11-25 | 李立群 | Heat-repair material for coke oven head and preparation method thereof |
| CN106278291B (en) * | 2015-05-28 | 2019-08-06 | 鞍钢股份有限公司 | Sealing material for coal charging hole cover of coke oven and preparation method thereof |
| CN104961472A (en) * | 2015-05-29 | 2015-10-07 | 鞍山市永恒特种耐火材料制造有限公司 | Rapid repairing material prepared from waste high-aluminum brick and preparation method thereof |
| CN108117399B (en) * | 2016-11-28 | 2020-08-25 | 宝山钢铁股份有限公司 | Fire-resistant sealing material for coke oven head |
| CN108503374A (en) * | 2018-03-05 | 2018-09-07 | 东莞理工学院 | A kind of half sintering furnace banking material preparation method of powder metallurgy and repeated using method |
| CN109233870A (en) * | 2018-09-05 | 2019-01-18 | 嘉峪关市长城望宇炉业有限责任公司 | The method of ceramics whitewashing sealing oven wall of coke oven carbonization chamber |
| CN114133255A (en) * | 2021-12-17 | 2022-03-04 | 河北鑫达钢铁集团有限公司 | Heating furnace heat storage box body repairing material and preparation method thereof |
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| CN103482990A (en) | 2014-01-01 |
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