CN101913893A - Hot patching material for large face of converter - Google Patents
Hot patching material for large face of converter Download PDFInfo
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- CN101913893A CN101913893A CN 201010273614 CN201010273614A CN101913893A CN 101913893 A CN101913893 A CN 101913893A CN 201010273614 CN201010273614 CN 201010273614 CN 201010273614 A CN201010273614 A CN 201010273614A CN 101913893 A CN101913893 A CN 101913893A
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- hot patching
- patching material
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Abstract
The invention relates to a hot patching material for a large face of a converter. The technical scheme is that: a uniform and loose aggregate is prepared by mixing and stirring 80 to 85 weight percent of magnesite or forsterite serving as a main raw material, 10 to 15 weight percent of lactose or maltose serving as a binder, 0 to 5 weight percent of graphite serving as a carburant, and 0 to 5 weight percent of silica powder, ferrosilicon powder, aluminum powder and the like serving as combustion improvers. The hot patching material is mainly applied to patching the large face part of the converter, and has the characteristics of short sintering time, no toxic gas emission, high adhesive force with a converter body, long service life and the like.
Description
Technical field:
The invention belongs to the unshape refractory technical field.Relate in particular to a kind of preparation of hot patching material for large face of converter.
Technical background:
Converter is the major equipment that converter steelmaking is produced, and converter is owing to receive mechanical force impact and slag action for a long time under the condition of high temperature, and the refractory materials of the big face of furnace bottom and front and back very easily damages.In order to improve life of converter, reduce steel-making cost, usually converter lining is safeguarded.Adopting the method for safeguarding now is that splashing slag in converter and big face hot repair carry out simultaneously.It is that the mode that the adding modification agent spatters slag by nitrogen flushing after tapping finishes makes slag and modification agent stick to the converter inwall that slag is spattered in converter, the thickness that increases the furnace wall reaches the purpose of maintenance, but because the damage of converter lining is irregular, therefore the broken ring that factors such as the adding of steel scrap and tapping make the big face in front and back of converter and furnace bottom must adopt repair material that hot patching is carried out at these positions than serious many in other position.Hot mending material should possess following performance: temperature flowing is good, sintering time is short, long service life.At present, the repair material major technique that steel mill uses is summarized as follows: " a kind of novel converter thermal-state artesian repairing material (CN101747064A) " is main raw material with rhombspar, magnesia, with mid-temperature pitch, asphalt modification resol is wedding agent, makes through mixing, stirring; " large-area self-flowing converter repairing material (CN1417549A) " makees wedding agent with magnesite clinker, white clouds masonry raw material with metasilicate and phosphoric acid salt, makes through mixed grind, stirring; " a kind of environment-friendly aqueous long-life self-flowing repairing mix for converter and compound method thereof (CN101792322A) " is main raw material with electrosmelted magnesite clinker, magnesite clinker and fine silica powder, the agent of the short burning of one or more conducts such as compound use ferrosilicon powder, carborundum powder and metal fine powder, adopting citric acid, boric acid, tartrate, oxalic acid etc. is retardant, obtains through mixing to stir; " magnesia lining repairing water stirs and using method (CN1375478A) " presses magnesium oxide at 90-97%, chromium sesquioxide is at 2-8%, and wedding agent adds 10-15% water and is mixed into mud at 1.5-8%, pack with watertight woven bag, directly drop into the large face of converter position and use.
According to above situation analysis, big repair material of converter current mainly contains two classes by wedding agent classification: a class is to be the hot mending material of wedding agent with pitch or resin, and work-ing life is longer, but has a large amount of harmful flue dust of generation under the high temperature, sintering time is long, influences the problems such as production efficiency of converter; One class is to be the water system repair material of wedding agent with metasilicate or phosphoric acid salt or inorganics etc., although environmental protection, sintering time is also shorter, but make that short texture intensity is very little owing at high temperature produce a large amount of evaporations of eutectic or steam, make work-ing life shorter, thereby repair too frequently, influenced the production efficiency of converter.
In order to solve the deficiency of existing large face of converter repair material, the invention reside in provides a kind of hot patching material for large face of converter, has the sintering time weak point, and no toxic gas is emitted and the body of heater strong adhesion, characteristics such as long service life.
Summary of the invention:
At above purpose, hot patching material for large face of converter of the present invention is based on magnesia or forsterite material, with lactose or maltose is wedding agent, the graphite that adds 0-5% is as the carburetting raw material, and the silica flour, ferrosilicon powder, aluminium powder etc. that can add 0-5% burn agent as short, obtain a kind of even, loose gathering materials through mixing, stirring.
For achieving the above object, the technical solution used in the present invention is: percentage composition is a main raw material with magnesia or the forsterite of 80-85% by weight, lactose or maltose with 10-15% are wedding agent, the graphite that adds 0-5% is as the carburetting raw material, and the silica flour, ferrosilicon powder, aluminium powder etc. that can add 0-5% burn agent as short, obtain a kind of even, loose gathering materials through mixing, stirring.Wherein the weight percentage of magnesia or forsterite grain composition is: 15-0.074mm be 60-70%,＜0.074mm is 30-40%.It is wedding agent that the present invention adopts lactose or maltose, because lactose and maltose fusing point are low, fusion produces liquid phase in the hot patching process, and repair material is shakeouing from the gravity current downflow; Lactose and maltose do not have irritant gas to produce in bake process, so environmental friendliness; For the carbon residue amount that improves in the repair material can be added suitable amount of graphite; Introduce an amount of silica flour, ferrosilicon powder or aluminium powder, can further shorten sintering time on the one hand, can generate fibrous silicon carbide or aluminium carbide etc. with the carbon residue reaction on the other hand and improve hot strength, prolong the work-ing life of repair material.So the repair material that according to said method makes not only sintering time is short, no toxic gas is emitted, and erosion-resisting characteristics is good, long service life.
Embodiment 1
By weight percentage: containing MgO and be 95% magnesite clinker is 80%, and lactose is 15%, and graphite is 3%, and silica flour is 2%.Wherein the weight percentage of magnesite clinker grain composition is: 15-0.074mm be 60-70%,＜0.074mm is 30-40%.Above-mentioned raw materials is mixed, obtain hot patching material for large face of converter after stirring.
This repair material uses in 100 tons of converters, sintering time 30 minutes, and the life-span surpasses 30 stoves.
Embodiment 2
By weight percentage: containing MgO and be 97% magnesite clinker is 80%, and maltose is 10%, and graphite is 5%, and silica flour is 3%, and aluminium powder is 2%.Wherein the weight percentage of magnesite clinker grain composition is: 5-0.074mm be 60-70%,＜0.074mm is 30-40%.Above-mentioned raw materials is mixed, obtain hot patching material for large face of converter after stirring.
This repair material uses in 110 tons of converters, sintering time 25 minutes, and the life-span surpasses 30 stoves.
Embodiment 3
By weight percentage: containing MgO and be 95% magnesite clinker is 40%, and forsterite is 45%, and lactose is 15%.Wherein the weight percentage of forsterite grain composition is: 15-0.074mm is 45%, magnesite clinker＜0.074mm is 40%.Above-mentioned raw materials is mixed, obtain hot patching material for large face of converter after stirring.
This repair material uses in 50 tons of converters, sintering time 30 minutes, and the life-span surpasses 30 stoves.
Claims (4)
1. hot patching material for large face of converter, it is characterized in that percentage composition by weight is a main raw material with magnesia or the forsterite of 80-85%, lactose or maltose with 10-15% are wedding agent, add the graphite of 0-5%, and can add the silica flour of 0-5%, ferrosilicon powder, aluminium powders etc. are as the agent of short burning, through mixing, stirring obtains a kind of even, loose gathers materials, it is characterized in that: repair material adds in the stove, the wedding agent fusion forms liquid phase, material shakeouts in the action of gravity current downflow, and sintering time is short, and no toxic gas is emitted in the sintering process, with the furnace lining strong adhesion, anti-molten steel slag ability is strong behind the sintering.
2. the described hot patching material for large face of converter of claim 1 is characterized in that with lactose or maltose be wedding agent.
3. the described hot patching material for large face of converter of claim 1, the graphite that it is characterized in that adding 0-5% improves the carbon residue amount of repair material.
4. the described hot patching material for large face of converter of claim 1, the silica flour, ferrosilicon powder, aluminium powder etc. that it is characterized in that adding 0-5% burn agent as short, and improve repair material intensity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102736149A CN101913893B (en) | 2010-09-07 | 2010-09-07 | Hot patching material for large face of converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102736149A CN101913893B (en) | 2010-09-07 | 2010-09-07 | Hot patching material for large face of converter |
Publications (2)
| Publication Number | Publication Date |
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| CN101913893A true CN101913893A (en) | 2010-12-15 |
| CN101913893B CN101913893B (en) | 2012-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102736149A Expired - Fee Related CN101913893B (en) | 2010-09-07 | 2010-09-07 | Hot patching material for large face of converter |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320861A (en) * | 2011-06-10 | 2012-01-18 | 刘建平 | The working method of glued healing crack stone material |
| CN102531653A (en) * | 2012-01-19 | 2012-07-04 | 北京炜润达冶金材料有限公司 | Hot-state repair material made from waste magnesia-carbon brick and used for converter and preparation method thereof |
| CN102584281A (en) * | 2012-01-19 | 2012-07-18 | 北京炜润达冶金材料有限公司 | Hydration-resistant hot-state mending material for steelmaking converter and preparation method thereof |
| CN102584282A (en) * | 2012-01-19 | 2012-07-18 | 北京炜润达冶金材料有限公司 | Thermal-state mending material taking forsterite as raw material for converters and preparation method thereof |
| CN102786312A (en) * | 2012-08-22 | 2012-11-21 | 武汉钢铁(集团)公司 | Large face repair material of converter and preparation method |
| CN103626506A (en) * | 2013-12-04 | 2014-03-12 | 海城市金福锋耐火材料有限公司 | Environment-friendly hot patching material for converter |
| CN104030710A (en) * | 2014-07-02 | 2014-09-10 | 武汉科技大学 | Water-based converter bedding face repairing material and using method thereof |
| CN105461335A (en) * | 2016-01-07 | 2016-04-06 | 北京科技大学 | Preparation method of refractory material made of periclase with ferrosilicon added |
| CN105801136A (en) * | 2016-02-04 | 2016-07-27 | 北京利尔高温材料股份有限公司 | Converter repairing mass and preparation method thereof |
| CN106747505A (en) * | 2016-12-12 | 2017-05-31 | 丹东播磨耐火材料有限公司 | A kind of carbon-free converter material for repairing |
| CN106977214A (en) * | 2017-04-01 | 2017-07-25 | 海城市中兴高档镁质砖有限公司 | A kind of Large face repair material of converter and preparation method thereof |
| CN108698931A (en) * | 2016-01-04 | 2018-10-23 | 里弗雷克特里知识产权两合公司 | The manufacturing method of the formed body and material and adhesive and they of fire resisting |
| CN109678470A (en) * | 2018-12-29 | 2019-04-26 | 海城市中兴镁质合成材料有限公司 | It is a kind of repair converter lining magnesian and its preparation, application method |
| CN109694238A (en) * | 2019-01-11 | 2019-04-30 | 宜兴市恒祥耐火材料有限公司 | Ceramic welding material and its method for using the soldering material soldering coke oven |
| CN110734280A (en) * | 2019-11-22 | 2020-01-31 | 武汉如星科技有限公司 | converter large-surface hot-state repair material and preparation method thereof |
| CN110818436A (en) * | 2019-11-22 | 2020-02-21 | 武汉如星科技有限公司 | Hot-state repairing material for steelmaking furnace and preparation method thereof |
| CN111517762A (en) * | 2020-06-03 | 2020-08-11 | 大石桥市天运耐火材料有限公司 | Environment-friendly converter quick repairing material and preparation and use methods thereof |
| CN111792920A (en) * | 2020-06-20 | 2020-10-20 | 鞍山赛诺新材料有限公司 | Novel environment-friendly converter quick repairing material |
| CN112573902A (en) * | 2020-12-02 | 2021-03-30 | 北京联合荣大工程材料股份有限公司 | Long-life converter tapping hole |
| CN114149267A (en) * | 2021-11-18 | 2022-03-08 | 偏关县晋电化工有限责任公司 | Slag hole protection material for submerged arc furnace |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1417549A (en) * | 2001-11-06 | 2003-05-14 | 武汉威林炉衬材料有限责任公司 | Large-area self-flowing converter repairing material |
| CN101077523A (en) * | 2007-06-22 | 2007-11-28 | 河北理工大学 | Method for preparing dry working lining |
| CN101747064A (en) * | 2008-11-29 | 2010-06-23 | 郑州东方三力耐火材料有限公司 | Novel converter thermal-state artesian repairing material |
-
2010
- 2010-09-07 CN CN2010102736149A patent/CN101913893B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1417549A (en) * | 2001-11-06 | 2003-05-14 | 武汉威林炉衬材料有限责任公司 | Large-area self-flowing converter repairing material |
| CN101077523A (en) * | 2007-06-22 | 2007-11-28 | 河北理工大学 | Method for preparing dry working lining |
| CN101747064A (en) * | 2008-11-29 | 2010-06-23 | 郑州东方三力耐火材料有限公司 | Novel converter thermal-state artesian repairing material |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320861B (en) * | 2011-06-10 | 2013-01-02 | 刘建平 | Method for producing cementation healing fussure stone |
| CN102320861A (en) * | 2011-06-10 | 2012-01-18 | 刘建平 | The working method of glued healing crack stone material |
| CN102531653A (en) * | 2012-01-19 | 2012-07-04 | 北京炜润达冶金材料有限公司 | Hot-state repair material made from waste magnesia-carbon brick and used for converter and preparation method thereof |
| CN102584281A (en) * | 2012-01-19 | 2012-07-18 | 北京炜润达冶金材料有限公司 | Hydration-resistant hot-state mending material for steelmaking converter and preparation method thereof |
| CN102584282A (en) * | 2012-01-19 | 2012-07-18 | 北京炜润达冶金材料有限公司 | Thermal-state mending material taking forsterite as raw material for converters and preparation method thereof |
| CN102786312B (en) * | 2012-08-22 | 2014-12-03 | 武汉钢铁(集团)公司 | Large face repair material of converter and preparation method |
| CN102786312A (en) * | 2012-08-22 | 2012-11-21 | 武汉钢铁(集团)公司 | Large face repair material of converter and preparation method |
| CN103626506A (en) * | 2013-12-04 | 2014-03-12 | 海城市金福锋耐火材料有限公司 | Environment-friendly hot patching material for converter |
| CN103626506B (en) * | 2013-12-04 | 2015-04-15 | 海城市金福锋科技有限公司 | Environment-friendly hot patching material for converter |
| CN104030710A (en) * | 2014-07-02 | 2014-09-10 | 武汉科技大学 | Water-based converter bedding face repairing material and using method thereof |
| CN108698931A (en) * | 2016-01-04 | 2018-10-23 | 里弗雷克特里知识产权两合公司 | The manufacturing method of the formed body and material and adhesive and they of fire resisting |
| CN105461335A (en) * | 2016-01-07 | 2016-04-06 | 北京科技大学 | Preparation method of refractory material made of periclase with ferrosilicon added |
| CN105801136A (en) * | 2016-02-04 | 2016-07-27 | 北京利尔高温材料股份有限公司 | Converter repairing mass and preparation method thereof |
| CN106747505A (en) * | 2016-12-12 | 2017-05-31 | 丹东播磨耐火材料有限公司 | A kind of carbon-free converter material for repairing |
| CN106977214A (en) * | 2017-04-01 | 2017-07-25 | 海城市中兴高档镁质砖有限公司 | A kind of Large face repair material of converter and preparation method thereof |
| CN109678470A (en) * | 2018-12-29 | 2019-04-26 | 海城市中兴镁质合成材料有限公司 | It is a kind of repair converter lining magnesian and its preparation, application method |
| CN109694238A (en) * | 2019-01-11 | 2019-04-30 | 宜兴市恒祥耐火材料有限公司 | Ceramic welding material and its method for using the soldering material soldering coke oven |
| CN110734280A (en) * | 2019-11-22 | 2020-01-31 | 武汉如星科技有限公司 | converter large-surface hot-state repair material and preparation method thereof |
| CN110818436A (en) * | 2019-11-22 | 2020-02-21 | 武汉如星科技有限公司 | Hot-state repairing material for steelmaking furnace and preparation method thereof |
| CN111517762A (en) * | 2020-06-03 | 2020-08-11 | 大石桥市天运耐火材料有限公司 | Environment-friendly converter quick repairing material and preparation and use methods thereof |
| CN111792920A (en) * | 2020-06-20 | 2020-10-20 | 鞍山赛诺新材料有限公司 | Novel environment-friendly converter quick repairing material |
| CN112573902A (en) * | 2020-12-02 | 2021-03-30 | 北京联合荣大工程材料股份有限公司 | Long-life converter tapping hole |
| CN114149267A (en) * | 2021-11-18 | 2022-03-08 | 偏关县晋电化工有限责任公司 | Slag hole protection material for submerged arc furnace |
| CN114149267B (en) * | 2021-11-18 | 2023-05-05 | 偏关县晋电化工有限责任公司 | Slag hole protecting material for submerged arc furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101913893B (en) | 2012-08-22 |
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Address after: Xinhua Xidao 063009 Hebei province Tangshan City Lunan District No. 46 Hebei Polytechnic University Patentee after: North China Polytechnics Address before: Xinhua Xidao 063009 Hebei province Tangshan City Lunan District No. 46 Hebei Polytechnic University Patentee before: Hebei Univ. of Science & Technology |
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