CN103964880B - A kind of large ladle furnace Gunning refractory - Google Patents

A kind of large ladle furnace Gunning refractory Download PDF

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Publication number
CN103964880B
CN103964880B CN201410235932.4A CN201410235932A CN103964880B CN 103964880 B CN103964880 B CN 103964880B CN 201410235932 A CN201410235932 A CN 201410235932A CN 103964880 B CN103964880 B CN 103964880B
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China
Prior art keywords
ladle furnace
diamond spar
plate diamond
large ladle
ladle
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Expired - Fee Related
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CN201410235932.4A
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Chinese (zh)
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CN103964880A (en
Inventor
黄丽佳
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YUEQING RONGXING METALLIC MATERIALS CO Ltd
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Individual
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  • Treatment Of Steel In Its Molten State (AREA)

Abstract

The present invention relates to a kind of large ladle furnace Gunning refractory, effectively can solve the problem of ladle hot spray repair.Technical scheme is this spray material is by following weight percent meter: plate diamond spar 12-8mm is 8 ~ l0%, plate diamond spar 8-5mm is l1 ~ 15%, forsterite 5-3mm is 12 ~ 15%, magnesia spinel 3 one lmm is 10 ~ 15%, magnesia spinel≤1mm is 30 ~ 35%, ZrC powder 3 ~ 5%, Ni 2geO 4powder 1%, softening agent 1 ~ 5%, bonding agent 3 ~ 6% mixes to be made; Described bonding agent is one or both the combination that Shui closes Yangization Lv ﹑ Sodium hexametaphosphate 99; Described softening agent is ball clay or dextrin.The present invention can use gap to be repaired ladle liner by hot gunning construction at large ladle furnace, and make ladle long service life, ton steel refractory consumption is low, and economic and social benefit is huge.

Description

A kind of large ladle furnace Gunning refractory
One. technical field
The present invention relates to Gunning refractory, particularly a kind of large ladle furnace hot gunning Gunning refractory.
Two. background technology
In order to ensure large ladle furnace result of use, it is matter of frequent occurrence that large ladle furnace spray repair is repaired.Conventional Gunning refractory can only be used for cold conditions spray repair, needs large ladle furnace to suspend to use, and just can carry out repairing work after naturally cooling (usually taking 2-3 days).And large ladle furnace is when again putting into production, needs previously baked to more than 1100 DEG C, cause whole Period Process very long, not only incur loss through delay production but also expend the energy.Therefore, Gunning refractory can construct under hot state imperative.
Three. summary of the invention
For above-mentioned situation, for overcoming the defect of prior art, the object of the present invention is just to provide a kind of large ladle furnace hot gunning Gunning refractory, effectively can solve the problem that large ladle furnace hot gunning is repaired.
The technical scheme that the present invention solves is, a kind of large ladle furnace Gunning refractory, it is characterized in that, by following weight percent meter: plate diamond spar 12-8mm is 8 ~ l0%, plate diamond spar 8-5mm is l1 ~ 15%, forsterite 5-3mm is 12 ~ 15%, magnesia spinel 3 one lmm is 10 ~ 15%, magnesia spinel≤1mm is 30 ~ 35%, ZrC powder 3 ~ 5%, Ni 2geO 4powder 1%, softening agent 1 ~ 5%, bonding agent 3 ~ 6% mixes to be made; Described: aluminum oxide>=98% of plate diamond spar; Forsterite>=95%; Magnesia spinel>=95%; ZrC>=90%; Ni 2geO 4>=92%; Described bonding agent is one or both the combination that Shui closes Yangization Lv ﹑ Sodium hexametaphosphate 99; Described softening agent is ball clay or dextrin.
The present invention is a kind of large ladle furnace Gunning refractory, gap can be used to be repaired large ladle furnace cylinder-packing by hot gunning construction at large ladle furnace, make large ladle furnace long service life, ton large-scale ladle long service life, ton steel refractory consumption can save more than 120% than domestic like product, large ladle furnace maintenance cycle is elongated, and labor strength reduces, and economic and social benefit is huge.
Four. embodiment
Below in conjunction with embodiment, the specific embodiment of the present invention is elaborated.
Embodiment 1
The present invention can adopt following weight percent meter in concrete enforcement: plate diamond spar 12-8mm is 10%, plate diamond spar 8-5mm is l5%, forsterite 5-3mm is 12%, magnesia spinel 3 one lmm is 15%, magnesia spinel≤1mm is 35%, ZrC powder 3%, Ni 2geO 4powder 1%, softening agent 3%, bonding agent 6% mixes, and is stirred make by stirrer.
Embodiment 2
The present invention also can adopt following weight percent meter in concrete enforcement: plate diamond spar 12-8mm is 10%, plate diamond spar 8-5mm is l5%, forsterite 5-3mm is 12%, magnesia spinel 3 one lmm is 15%, magnesia spinel≤1mm is 35%, ZrC powder 3%, Ni 2geO 4powder 1%, softening agent 4%, bonding agent 5% mixes, and is stirred make by stirrer.
Embodiment 3
(0012) the present invention also can adopt following weight percent meter in concrete enforcement: plate diamond spar 12-8mm is 10%, plate diamond spar 8-5mm is l5%, forsterite 5-3mm is 12%, magnesia spinel 3 one lmm is 15%, magnesia spinel≤1mm is 34%, ZrC powder 4%, Ni 2geO 4powder 1%, softening agent 3%, bonding agent 6% mixes, and is stirred make by stirrer.
In embodiment 1-3, alleged tabular Gang Yu ﹑ Mei Gan Lan Shi ﹑ Mei Jian Jing Shi ﹑ Ni 2geO 4, ZrC, bonding agent be identical with the component provided in summary of the invention part with softening agent.
Gunning refractory of the present invention directly can carry out spray repair repairing to the large ladle furnace cylinder-packing of more than 1000 DEG C, greatly reduce a ton steel refractory consumption, the resistance to material more than 120% of ton steel can be saved, in addition mass energy is also saved, large ladle furnace maintenance cycle is elongated, labor strength reduces, and economic and social benefit is huge.After tested, its test index is as following table for Gunning refractory of the present invention:
The present invention has broad application prospects, economic worth and technological value huge.

Claims (2)

1. a large ladle furnace Gunning refractory, it is characterized in that, by following weight percent meter: plate diamond spar 12-8mm is 8 ~ l0%, plate diamond spar 8-5mm is l1 ~ 15%, forsterite 5-3mm is 12 ~ 15%, magnesia spinel 3 one lmm is 10 ~ 15%, magnesia spinel≤1mm is 30 ~ 35%, ZrC powder 3 ~ 5%, Ni 2geO 4powder 1%, softening agent 1 ~ 5%, bonding agent 3 ~ 6% mixes to be made.
2. a kind of large ladle furnace Gunning refractory according to claim 1, is characterized in that, alumina content >=98% of described plate diamond spar; Described bonding agent is one or both the combination that Shui closes Yangization Lv ﹑ Sodium hexametaphosphate 99; Described softening agent is ball clay or dextrin.
CN201410235932.4A 2014-05-29 2014-05-29 A kind of large ladle furnace Gunning refractory Expired - Fee Related CN103964880B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410235932.4A CN103964880B (en) 2014-05-29 2014-05-29 A kind of large ladle furnace Gunning refractory

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410235932.4A CN103964880B (en) 2014-05-29 2014-05-29 A kind of large ladle furnace Gunning refractory

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CN103964880A CN103964880A (en) 2014-08-06
CN103964880B true CN103964880B (en) 2015-11-18

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Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101671185B (en) * 2009-09-14 2012-07-04 营口辰兴耐火材料有限公司 Method for producing forsterite sand-containing gunning material for steel ladles
CN102010217B (en) * 2010-12-28 2012-12-26 河南省耕生耐火材料有限公司 Spray paint for ladle hot-spraying
CN102531643A (en) * 2010-12-30 2012-07-04 济南新峨嵋实业有限公司 Gunning lining-making method for steel ladle
CN102718516A (en) * 2012-07-18 2012-10-10 山国强 Steel ladle gunning material

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Inventor after: Huang Lijia

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Address after: Yueqing City, Zhejiang province 325600 Wenzhou city seven Li Gang Zhen Ma Dao tou Cun

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Applicant before: Zhang Ting

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Address after: 325600, Zhejiang Province, Wenzhou City, Yueqing Province North Town, Zhang Bai village

Patentee after: Yueqing Rongxing Metallic Materials Co., Ltd.

Address before: Yueqing City, Zhejiang province 325600 Wenzhou city seven Li Gang Zhen Ma Dao tou Cun

Patentee before: Huang Lijia

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151118

Termination date: 20170529

CF01 Termination of patent right due to non-payment of annual fee