CN102603310A - Quick sintering repairing mass used for steel mill converter - Google Patents
Quick sintering repairing mass used for steel mill converter Download PDFInfo
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- CN102603310A CN102603310A CN2011102614343A CN201110261434A CN102603310A CN 102603310 A CN102603310 A CN 102603310A CN 2011102614343 A CN2011102614343 A CN 2011102614343A CN 201110261434 A CN201110261434 A CN 201110261434A CN 102603310 A CN102603310 A CN 102603310A
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- magnesite clinker
- electrosmelted magnesite
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Abstract
The invention relates to a quick sintering repairing mass used for a steel mill converter and a preparation method thereof. The technical scheme adopted in the invention is as follows: the quick sintering repairing mass is prepared from the following raw materials in parts by weight: 20-45% of fused magnesite of which the granularity is more than 3mm and is less than or equal to 7mm, 10-25% of fused magnesite of which the granularity is more than 1mm and is less than or equal to 3mm, 10-25% of fused magnesite of which the granularity is less than or equal to 1mm, 15-35% of fused magnesite of which the granularity is less than 0.088mm, 5-16% of bonding agent, 10-20% of agglutinant and 2-10% of additive. The quick sintering repairing mass is mainly suitable for repairing and maintaining the converter, the service life of the converter can be improved, and the fettling time can be shortened to 15-25 minutes.
Description
Technical field
The present invention relates to a kind of fettling material that is used to repair and safeguard steel mill's converter and preparation method thereof.
Background technology
At present, being used for the converter mending material of steel smelting procedure, all is to be body material with magnesia; Add some additives, use pitch etc. to be agglutinant, the common mending material that forms through uniform mixing; This mending material filling time is long, generally needs 40～60 minutes, and environment protecting is poor.As everyone knows, steel mill steel-making rhythm is fast, and requiring has certain continuity, and environmental requirement is also tight especially, particularly the filling time long, cause cost to increase and throughput reduction and continuity reduction to steel mill.
Summary of the invention
It is low to the purpose of this invention is to provide a kind of cost, steel mill's coverter pig Fast Sintering mending material that the filling time is short.
The technical scheme that the present invention adopts is: a kind of steel mill coverter pig Fast Sintering mending material, process by following raw materials by weight:
Electrosmelted magnesite clinker 3 mm＜granularity≤7 mm 20～45%
Electrosmelted magnesite clinker 1 mm＜granularity≤3 mm 10～25%
Electrosmelted magnesite clinker granularity≤1 mm 10～25%
Electrosmelted magnesite clinker granularity＜0.088mm 15～35%
Wedding agent 5～16%
Agglutinant 10～20%
Additive 2～10%.
Said wedding agent is one or more mixing of ether, terepthaloyl moietie, machine oil or carbolineum.
Said agglutinant is thermoplastic resin, pitch, beta-lactam and NAPTHALENE FLAKES. (INDUSTRIAL GRADE by weight 1: 1～4: 1～3: 1～3 mixing.
Said additive is metallic aluminium powder, magnesium zircon sand and spinel powder by weight 1: 1～3: 1～3 mixing.
The preparation method of above-mentioned a kind of steel mill coverter pig Fast Sintering mending material is following:
1) be that the electrosmelted magnesite clinker of 3mm＜granularity≤7mm, 1mm＜granularity≤3mm and granularity≤1mm is put into mixing machine and mixed 1～2 minute with granularity by weight percentage;
2) adding wedding agent by weight percentage mixed 5～10 minutes;
3) add agglutinant and granularity＜0.088mm electrosmelted magnesite clinker by weight percentage, mixed 3～5 minutes;
4) adding additive by weight percentage mixed 3～5 minutes.
The invention has the beneficial effects as follows: the present invention mainly is applicable to the repairing and the maintenance of steel mill's converter, adopts mending material of the present invention, and the filling time shortens to 15～25 minutes, greatly reduces the filling time, has improved the production continuity and the production efficiency of steel mill.Mending material good fluidity of the present invention, sintering posterior spiracle rate is low, has erosion, the penetrating quality of good anti-thermal shock stability, spalling resistance and anti-molten steel, can reduce molten iron to the washing away of converter lining, and then improve the work-ing life of converter.
Embodiment
1 one kinds of steel mills of embodiment coverter pig Fast Sintering mending material
(1) proportion of raw materials is following:
Electrosmelted magnesite clinker (MgO>=96%) 3 mm＜granularity≤7 mm 24%
Electrosmelted magnesite clinker (MgO>=96%) 1 mm＜granularity≤3 mm 14%
Electrosmelted magnesite clinker (MgO>=96%) granularity≤1 mm 14%
Electrosmelted magnesite clinker (MgO >=96%) granularity＜0.088mm 16%
Wedding agent 12%
Agglutinant 15%
Additive 5%.
Said wedding agent is that ether, terepthaloyl moietie mix by weight 1:1.
Agglutinant be thermoplastic resin, pitch, beta-lactam, NAPTHALENE FLAKES. (INDUSTRIAL GRADE by weight 1: 3: 2: 2 mixing.
Additive is metallic aluminium powder, magnesium zircon sand, spinel powder by weight 1: 2: 2 mixing.
(2) preparation method:
1) with granularity is the electric smelting of 3 mm＜granularity≤7 mm, 1 mm＜granularity≤3 mm and granularity≤1 mm by weight percentage
Magnesia is put into mixing machine and was mixed 1～2 minute;
2) adding wedding agent by weight percentage mixed 5～10 minutes;
3) add agglutinant and granularity＜0.088 mm electrosmelted magnesite clinker by weight percentage, mixed 3～5 minutes;
4) adding additive by weight percentage mixed 3～5 minutes.The result sees table 1.
2 one kinds of steel mills of embodiment coverter pig Fast Sintering mending material
(1) proportion of raw materials is following:
Electrosmelted magnesite clinker 3 mm＜granularity≤7 mm 45%
Electrosmelted magnesite clinker 1 mm＜granularity≤3 mm 10%
Electrosmelted magnesite clinker granularity≤1 mm 10%
Electrosmelted magnesite clinker granularity＜0.088mm 15%
Wedding agent 8%
Agglutinant 10%
Additive 2%.
Said wedding agent is that ether, machine oil mix by weight 2:1.
Agglutinant be thermoplastic resin, pitch, beta-lactam and NAPTHALENE FLAKES. (INDUSTRIAL GRADE by weight 1: 1: 3: 3 mixing.
Additive is metallic aluminium powder, magnesium zircon sand and terepthaloyl moietie by weight 1: 3: 1 mixing.
(2) preparation method is with embodiment 1, and the result sees table 1.
3 one kinds of steel mills of embodiment coverter pig Fast Sintering mending material
(1) proportion of raw materials is following:
Electrosmelted magnesite clinker 3 mm＜granularity≤7 mm 20%
Electrosmelted magnesite clinker 1 mm＜granularity≤3 mm 18%
Electrosmelted magnesite clinker granularity≤1 mm 18%
Electrosmelted magnesite clinker granularity＜0.088mm 20%
Wedding agent 5%
Agglutinant 10%
Additive 9%.
Wedding agent is that terepthaloyl moietie, carbolineum mix by weight 1:1.
Agglutinant be thermoplastic resin, pitch, beta-lactam, NAPTHALENE FLAKES. (INDUSTRIAL GRADE by weight 1: 4: 1: 1 mixing.
Additive is metallic aluminium powder, magnesium zircon sand, spinel powder by weight 1: 1: 3 mixing.
(2) preparation method is with embodiment 1, and the result sees table 1.
Table 1
Claims (3)
1. steel mill's coverter pig Fast Sintering mending material is characterized in that being processed by following raw materials by weight:
Electrosmelted magnesite clinker 3 mm＜granularity≤7 mm 20～45%
Electrosmelted magnesite clinker 1 mm＜granularity≤3 mm 10～25%
Electrosmelted magnesite clinker granularity≤1 mm 10～25%
Electrosmelted magnesite clinker granularity＜0.088 mm 15～35%
Wedding agent 5～16%
Agglutinant 10～20%
Additive 2～10%.
2. according to the described a kind of steel mill of claim 1 coverter pig Fast Sintering mending material, it is characterized in that: said wedding agent is one or more mixing of ether, terepthaloyl moietie, machine oil or carbolineum; Said agglutinant is thermoplastic resin, pitch, beta-lactam and NAPTHALENE FLAKES. (INDUSTRIAL GRADE by weight 1: 1～4: 1～3: 1～3 mixing; Said additive is metallic aluminium powder, magnesium zircon sand and spinel powder by weight 1: 1～3: 1～3 mixing.
3. the preparation method of claim 1 or 2 described a kind of steel mill coverter pig Fast Sintering mending materials is characterized in that step is following:
1) be that the electrosmelted magnesite clinker of 3 mm＜granularity≤7 mm, 1 mm＜granularity≤3 mm and granularity≤1 mm is put into mixing machine and mixed 1～2 minute with granularity by weight percentage;
2) adding wedding agent by weight percentage mixed 5～10 minutes;
3) add agglutinant and granularity＜0.088 mm electrosmelted magnesite clinker by weight percentage, mixed 3～5 minutes;
4) adding additive by weight percentage mixed 3～5 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110261434.3A CN102603310B (en) | 2011-09-06 | 2011-09-06 | Quick sintering repairing mass used for steel mill converter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110261434.3A CN102603310B (en) | 2011-09-06 | 2011-09-06 | Quick sintering repairing mass used for steel mill converter |
Publications (2)
| Publication Number | Publication Date |
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| CN102603310A true CN102603310A (en) | 2012-07-25 |
| CN102603310B CN102603310B (en) | 2014-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110261434.3A Expired - Fee Related CN102603310B (en) | 2011-09-06 | 2011-09-06 | Quick sintering repairing mass used for steel mill converter |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103290167A (en) * | 2013-06-17 | 2013-09-11 | 武钢集团昆明钢铁股份有限公司 | Method for prolonging service life of top-bottom composite blowing converter bottom |
| CN104030711A (en) * | 2014-07-02 | 2014-09-10 | 武汉科技大学 | Converter bedding face repairing material and use method thereof |
| CN105985119A (en) * | 2015-02-04 | 2016-10-05 | 攀钢冶金材料有限责任公司 | Mending material for converter and preparation method for mending material |
| CN106148635A (en) * | 2015-03-31 | 2016-11-23 | 鞍钢股份有限公司 | A kind of converter segment position restorative procedure |
| CN107012289A (en) * | 2016-01-27 | 2017-08-04 | 鞍钢股份有限公司 | A kind of converter bottom method for repairing and mending |
| CN110256051A (en) * | 2019-04-30 | 2019-09-20 | 郑州金利窑炉工程有限公司 | A kind of converter fettling material and preparation method thereof |
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| CN1309105A (en) * | 1999-12-29 | 2001-08-22 | 重庆钢铁(集团)有限责任公司 | Joint filler for converter |
| CN1827556A (en) * | 2005-02-28 | 2006-09-06 | 宝山钢铁股份有限公司 | Fire clay for replacement of tuyere brick in converter |
| CN1827789A (en) * | 2005-02-28 | 2006-09-06 | 宝山钢铁股份有限公司 | Joint filler for converter tuyere brick replacing |
| CN101025337A (en) * | 2005-12-02 | 2007-08-29 | 上海柯瑞冶金炉料有限公司 | Improved convertor quick-sintering heat self-flow compensation material, preparing technology and use |
| CN101973775A (en) * | 2010-11-09 | 2011-02-16 | 攀枝花钢城集团有限公司 | Repairing mass and preparation method thereof |
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2011
- 2011-09-06 CN CN201110261434.3A patent/CN102603310B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1309105A (en) * | 1999-12-29 | 2001-08-22 | 重庆钢铁(集团)有限责任公司 | Joint filler for converter |
| CN1827556A (en) * | 2005-02-28 | 2006-09-06 | 宝山钢铁股份有限公司 | Fire clay for replacement of tuyere brick in converter |
| CN1827789A (en) * | 2005-02-28 | 2006-09-06 | 宝山钢铁股份有限公司 | Joint filler for converter tuyere brick replacing |
| CN101025337A (en) * | 2005-12-02 | 2007-08-29 | 上海柯瑞冶金炉料有限公司 | Improved convertor quick-sintering heat self-flow compensation material, preparing technology and use |
| CN101973775A (en) * | 2010-11-09 | 2011-02-16 | 攀枝花钢城集团有限公司 | Repairing mass and preparation method thereof |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103290167A (en) * | 2013-06-17 | 2013-09-11 | 武钢集团昆明钢铁股份有限公司 | Method for prolonging service life of top-bottom composite blowing converter bottom |
| CN103290167B (en) * | 2013-06-17 | 2015-01-28 | 武钢集团昆明钢铁股份有限公司 | Method for prolonging service life of top-bottom composite blowing converter bottom |
| CN104030711A (en) * | 2014-07-02 | 2014-09-10 | 武汉科技大学 | Converter bedding face repairing material and use method thereof |
| CN104030711B (en) * | 2014-07-02 | 2015-08-19 | 武汉科技大学 | A kind of Large face repair material of converter and using method thereof |
| CN105985119A (en) * | 2015-02-04 | 2016-10-05 | 攀钢冶金材料有限责任公司 | Mending material for converter and preparation method for mending material |
| CN106148635A (en) * | 2015-03-31 | 2016-11-23 | 鞍钢股份有限公司 | A kind of converter segment position restorative procedure |
| CN106148635B (en) * | 2015-03-31 | 2018-12-04 | 鞍钢股份有限公司 | A kind of converter segment position restorative procedure |
| CN107012289A (en) * | 2016-01-27 | 2017-08-04 | 鞍钢股份有限公司 | A kind of converter bottom method for repairing and mending |
| CN110256051A (en) * | 2019-04-30 | 2019-09-20 | 郑州金利窑炉工程有限公司 | A kind of converter fettling material and preparation method thereof |
| CN110256051B (en) * | 2019-04-30 | 2021-11-26 | 郑州金利窑炉工程有限公司 | Converter repairing mass and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102603310B (en) | 2014-05-14 |
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