CN103724024B - Torpedo ladle lining repair gunning mix - Google Patents
Torpedo ladle lining repair gunning mix Download PDFInfo
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- CN103724024B CN103724024B CN201310714976.0A CN201310714976A CN103724024B CN 103724024 B CN103724024 B CN 103724024B CN 201310714976 A CN201310714976 A CN 201310714976A CN 103724024 B CN103724024 B CN 103724024B
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Abstract
The invention relates to a torpedo ladle lining repair gunning mix, belonging to the technical field of torpedo ladles for transporting molten iron. The torpedo ladle lining repair gunning mix comprises the following components in percentage by weight: 45-60% of brown fused alumina particle, 10-20% of silicon carbide particle, 1-5% of kyanite powder, 1-5% of Gangxi earth, 1-10% of active alpha-Al2O3 powder, 1-7% of silicon micropowder, 1-5% of metallic silicon powder, 0-5% of ball pitch, 0-5% of amorphous graphite and 2-10% of pure calcium aluminate cement. The raw materials are weighed according to the particle sizes and proportions and uniformly mixed in a mixer. The torpedo ladle lining repair gunning mix has favorable refractoriness, oxidation resistance and slag iron permeation and corrosion resistance at the torpedo ladle service temperature of 1400-1530 DEG C.
Description
Technical field
The invention belongs to transport molten iron fish torpedo ladle technical field, especially relate to a kind of torpedo tank liner repairing Gunning refractory.To slow down its bricking erosive velocity, to improve the repairing inner liner Gunning refractory in fish torpedo ladle work-ing life.
Background technology
Fish torpedo ladle is one of main Thermal Equipment of Molten Iron Transportation between iron-smelting blast furnace and steel-making converter, has the advantages such as dress molten iron capacity is large, hot metal temperature drop is low, is used widely.The cycle of operation is longer, about 10 ~ 16 months.In long-term operational process, torpedo tank liner refractory materials is subject to slag, the washing away, be oxidized and permeate and corrode of iron, and local or big area occur damaged, affect its safe operation and work-ing life.The overhaul of torpedo tank liner refractory materials, build maintenance by laying bricks or stones, need to consume a large amount of human and material resources and time, production cost is higher.
Along with continually strengthening and the requirement that reduces of the cost of resistance to material that strengthens day by day of smelting iron and steel operation, improve fish torpedo ladle work-ing life, reduce the problem that fish torpedo ladle refractory consumption rate cost has become technician's tackling key problem.Improving one of the approach in life-span, is exactly adopt repairing inner liner maintenance technology, except overhaul, in repair except technology such as mending maintenance by replacing a damaged part, torpedo tank liner refractory materials spray repair maintenance technology is effective mode.Its construction is convenient, speed is fast, consuming time low, substantially increase the turnover operational efficiency of fish torpedo ladle, effectively repaired the bricking of badly broken region, improve fish torpedo ladle work-ing life.
Summary of the invention
The object of the present invention is to provide a kind of torpedo tank liner repairing Gunning refractory, torpedo tank liner repairing needs can be met, improve the Gunning refractory that fish torpedo ladle can reduce again fish torpedo ladle refractory consumption rate cost work-ing life.
For achieving the above object, the present invention can take following technical proposals:
Torpedo tank liner repairing Gunning refractory of the present invention is by Brown Alundum (wherein Al
2o
3>=94%) particle, silicon-carbide particle (powder), aquamaine stone flour, Guangxi soil, silicon nitride iron powder, active alpha-Al
2o
3powder, silicon powder, metallic silicon power, pelletted pitch, amorphous graphite and pure calcium aluminate cement are formulated according to following weight per-cent:
Brown Alundum (wherein Al
2o
3>=94%) particle is 45-60%, silicon-carbide particle (powder) 10-20%, aquamaine stone flour 1-5%, Guangxi soil 1-5%, ferro-silicon nitride 1-10%, active alpha-Al
2o
3powder 1-10%, silicon powder 1-7%, metallic silicon power 1-5%, pelletted pitch 0-5%, amorphous graphite 0-5%; Fine aluminium sour calcium cement 2-10%.
The granularity of described Brown Alundum particle is 3-1mm; Silicon-carbide particle (powder) 1-0.044mm; Aquamaine stone flour 60 order-325 order; Guangxi soil 60 order-325 orders; Ferro-silicon nitride 60 order-325 order; Active alpha-Al
2o
3powder 1-100 μm; Silicon powder 1-3 μm; Metallic silicon power 60 order-325 order; Amorphous graphite 60-325 order; Pure calcium aluminate cement 1-100 μm.
Mixed in mixer after weighing in its granularity, ratio by above-mentioned raw materials, metering packing is stand-by.
During use, by professional spray repair equipment, spray repair construction is implemented to the torpedo tank liner cleaned out by residue region to be repaired, amount of water≤12%.
The invention has the advantages that Brown Alundum particle, silicon-carbide particle (powder), active alpha-Al
2o
3powder, metallic silicon power, pelletted pitch+amorphous graphite are as aggregate, the substrate material of Gunning refractory, using pure calcium aluminate cement, silicon powder as bonding agent, using Guangxi soil as plastic agent, kyanite is as swelling agent, using ferro-silicon nitride, metallic silicon power as composite antioxidant, ensure that this Gunning refractory has good refractoriness, oxidation-resistance, anti-slag iron infiltration aggressiveness under the fish torpedo ladle use temperature of 1400 ~ 1530 DEG C.
The performance index of Gunning refractory of the present invention are:
Refractoriness >=1700 DEG C; Volume density >=2.4 DEG C; Compressive strength >=45MPa(1500 DEG C × 3h); Folding strength >=15MPa(1500 DEG C × 3h).
Embodiment
Embodiment 1:
Torpedo tank liner repairing Gunning refractory of the present invention is by raw material A l
2o
3>=94% Brown Alundum (wherein Al
2o
3>=94%) particle 55%(granularity 3-1mm), silicon-carbide particle (powder) 15%(granularity 1-0mm10%, granularity 325 order 5%); Aquamaine stone flour 2%(granularity 180 order); Soil 2%(granularity≤200, Guangxi order); Ferro-silicon nitride 4%(granularity 325 order); Active alpha-Al
2o
3powder 7%(granularity 50 μm); Silicon powder 4%(granularity 1 μm); Metallic silicon power 1%(granularity 200 order); Pelletted pitch+amorphous graphite 3%(granularity 200 order); Fine aluminium sour calcium cement 7%(granularity 55 μm).
After above-mentioned refractory raw material is mixed in proportion, during with professional spray repairing machine to torpedo tank liner spray repair, amount of water about 12%.Spray repair lining body well protects slag line region firebrick lining in first Qin 260t fish torpedo ladle tank and does not weather, and improves fish torpedo ladle work-ing life more than 220 times.
Embodiment 2:
Torpedo tank liner repairing Gunning refractory of the present invention is by raw material Brown Alundum (wherein Al
2o
3>=94%) particle 48%(granularity 3-1mm), silicon-carbide particle (powder) 18%(granularity 1-0mm12%, granularity 325 order 6%); Aquamaine stone flour 2%(granularity 180 order); Soil 3%(granularity≤200, Guangxi order); Ferro-silicon nitride 5%(granularity 325 order); Active alpha-Al
2o
3powder 8%(granularity 50 μm); Silicon powder 4%(granularity 1 μm); Metallic silicon power 1%(granularity 200 order); Pelletted pitch+amorphous graphite 4%(granularity 200 order); Fine aluminium sour calcium cement 7%(granularity 55 μm).
After above-mentioned refractory raw material is mixed in proportion, during with professional spray repairing machine to torpedo tank liner spray repair, amount of water about 11%.Spray repair lining body well protects slag line region firebrick lining in first Qin 260t fish torpedo ladle tank and does not weather, and improves fish torpedo ladle work-ing life more than 230 times.
Embodiment 3: Brown Alundum particle 45%, silicon-carbide particle (powder) 18%; Aquamaine stone flour 4%; Guangxi soil 2%; Ferro-silicon nitride 2%; Active alpha-Al
2o
3powder 10%; Silicon powder 3%; Metallic silicon power 2%; Pelletted pitch+amorphous graphite 4%; The sour calcium cement 10% of fine aluminium.
Embodiment 4: Brown Alundum particle 60%, silicon-carbide particle (powder) 10%; Aquamaine stone flour 3%; Guangxi soil 3%; Ferro-silicon nitride 10%; Active alpha-Al
2o
3powder 8%; Silicon powder 5%; Metallic silicon power 1%; Pelletted pitch+amorphous graphite 3%; The sour calcium cement 7% of fine aluminium.
Embodiment 5: Brown Alundum particle 50%, silicon-carbide particle (powder) 15%; Aquamaine stone flour 4%; Guangxi soil 2%; Ferro-silicon nitride 3%; Active alpha-Al
2o
3powder 9%; Silicon powder 4%; Metallic silicon power 1.5%; Pelletted pitch+amorphous graphite 3.5%; The sour calcium cement 8% of fine aluminium.
Claims (1)
1. a torpedo tank liner repairing Gunning refractory, is characterized in that, weight percentages of components is:
Brown Alundum particle: 45-60%, silicon-carbide particle or powder: 10-20%, aquamaine stone flour 1-5%, Guangxi soil: 1-5%, ferro-silicon nitride: 1-10%, active alpha-Al
2o
3powder: 1-10%, silicon powder: 1-7%, metallic silicon power: 1-5%, pelletted pitch: 0-5%, amorphous graphite: 0-5%; The sour calcium cement of fine aluminium: 2-10%;
The granularity of described Brown Alundum particle is 3-1mm; Silicon-carbide particle or powder 1-0.044mm; Aquamaine stone flour 60 order-325 order; Guangxi soil 60 order-325 orders; Ferro-silicon nitride 60 order-325 order; Active alpha-Al
2o
3powder 1-100 μm; Silicon powder 1-3 μm; Metallic silicon power 60 order-325 order; Amorphous graphite 60-325 order; Pure calcium aluminate cement 1-100 μm;
Al in described Brown Alundum
2o
3>=94%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310714976.0A CN103724024B (en) | 2013-12-20 | 2013-12-20 | Torpedo ladle lining repair gunning mix |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310714976.0A CN103724024B (en) | 2013-12-20 | 2013-12-20 | Torpedo ladle lining repair gunning mix |
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| Publication Number | Publication Date |
|---|---|
| CN103724024A CN103724024A (en) | 2014-04-16 |
| CN103724024B true CN103724024B (en) | 2015-01-21 |
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ID=50448362
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310714976.0A Active CN103724024B (en) | 2013-12-20 | 2013-12-20 | Torpedo ladle lining repair gunning mix |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036775B (en) * | 2015-08-07 | 2017-07-04 | 武汉钢铁(集团)公司 | A kind of fish torpedo ladle slag line area material for repairing |
| CN105036777A (en) * | 2015-08-28 | 2015-11-11 | 桂林昌鑫机械制造有限公司 | Refractory material repairing agent |
| CN106116610B (en) * | 2016-06-30 | 2018-09-14 | 宜兴市炉顶密封工程有限公司 | Biomass boiler anti-slag coating |
| CN106187230A (en) * | 2016-07-14 | 2016-12-07 | 武汉钢铁股份有限公司 | Molten iron pretreatment utensil on-line maintenance material for repairing and its preparation method and application |
| CN106242588A (en) * | 2016-07-14 | 2016-12-21 | 武汉钢铁股份有限公司 | Torpedo tank liner spray repair material for repairing and preparation method and application |
| CN109369195A (en) * | 2018-10-30 | 2019-02-22 | 浙江锦诚新材料股份有限公司 | A kind of fish torpedo ladle High-Alumina thermal-state artesian repairing material and preparation method |
| CN111943693A (en) * | 2020-07-20 | 2020-11-17 | 武汉钢铁有限公司 | Torpedo tank lining smearing repairing material, preparation method and use method |
| CN113354427B (en) * | 2021-07-13 | 2022-02-22 | 中国人民解放军海军工程大学 | Hot patching material of refractory material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1840507A (en) * | 2005-12-22 | 2006-10-04 | 濮阳濮耐高温材料有限公司 | Waterless taphole mix for blast furnace taphole |
| CN1970500A (en) * | 2005-11-25 | 2007-05-30 | 首钢总公司 | Pouring material for torpedo tank liner repairing |
-
2013
- 2013-12-20 CN CN201310714976.0A patent/CN103724024B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1970500A (en) * | 2005-11-25 | 2007-05-30 | 首钢总公司 | Pouring material for torpedo tank liner repairing |
| CN1840507A (en) * | 2005-12-22 | 2006-10-04 | 濮阳濮耐高温材料有限公司 | Waterless taphole mix for blast furnace taphole |
Non-Patent Citations (2)
| Title |
|---|
| 高炉用铝碳化硅质喷补料的研制;秦岩 等;《硅酸盐通报》;20110630;第30卷(第3期);第652-655页 * |
| 鱼雷罐喷补料的研制开发与应用;马明锴;《山东冶金》;20120430;第34卷(第2期);第28,29,33页 * |
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|---|---|
| CN103724024A (en) | 2014-04-16 |
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Address after: 066326 Du Zhuang Township, Funing County, Qinhuangdao, Hebei Co-patentee after: Shougang Group Co. Ltd. Patentee after: Qinhuangdao Shouqin Metal Material Co., Ltd. Address before: 066326 Du Zhuang Township, Funing County, Qinhuangdao, Hebei Co-patentee before: Capital Iron & Steel General Company Patentee before: Qinhuangdao Shouqin Metal Material Co., Ltd. |
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Effective date of registration: 20190528 Address after: 100041 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Patentee after: Shougang Group Co. Ltd. Address before: 066326 Du Zhuang Township, Funing County, Qinhuangdao, Hebei Co-patentee before: Shougang Group Co. Ltd. Patentee before: Qinhuangdao Shouqin Metal Material Co., Ltd. |