CN105347806A - Rapid-sintering furnace repair material and preparation method thereof - Google Patents
Rapid-sintering furnace repair material and preparation method thereof Download PDFInfo
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- CN105347806A CN105347806A CN201410411790.2A CN201410411790A CN105347806A CN 105347806 A CN105347806 A CN 105347806A CN 201410411790 A CN201410411790 A CN 201410411790A CN 105347806 A CN105347806 A CN 105347806A
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Abstract
The present invention relates to a rapid-sintering furnace repair material and a preparation method thereof, wherein the rapid-sintering furnace repair material is prepared from the following raw materials by weight: 25-55% of fused magnesia with a particle size of 5-10 mm, 10-30% of fused magnesia with a particle size of 3-5 mm, 15-35% of fused magnesia with a particle size of 1-3 mm, 5-25% of fused magnesia with a particle size of less than or equal to 1 mm, 5-20% of fused magnesia with a particle size of less than 0.088 mm, 1-10% of silica micro-powder, 1-5% of clay, 1-10% of a binder, and 5-25% of a sintering agent. According to the present invention, the rapid-sintering furnace repair material is mainly suitable for repair and maintenance of the converter, wherein the service life of the converter can be prolonged, and the furnace repair time can be shortened to 10-30 min.
Description
Technical field
The present invention relates to refractory materials technology field, particularly relate to a kind of Fast Sintering mending material and preparation method thereof.
Background technology
At present, for the converter fettling material of steel smelting procedure, be all take magnesia as body material, adding some additives, is agglutinant with pitch etc., through the common mending material of Homogeneous phase mixing, this mending material filling time is long, and generally need 40 ~ 60 minutes, environment protecting is poor.As everyone knows, steel mill makes steel rhythm soon, requires certain continuity, and environmental requirement is also tight especially, and particularly the filling time is long, causes cost increase and throughput to reduce and continuity reduction to steel mill.
Summary of the invention
The object of this invention is to provide a kind of cost low, steel mill's coverter pig Fast Sintering mending material that the filling time is short.
The technical solution used in the present invention is:
A kind of Fast Sintering mending material, is made up of following raw materials by weight: the electrosmelted magnesite clinker 10 ~ 30% that the electrosmelted magnesite clinker 25 ~ 55% that granularity is 5-10mm, granularity are 3-5mm, granularity are the electrosmelted magnesite clinker 15 ~ 35% of 1-3mm, granularity is the≤electrosmelted magnesite clinker 5 ~ 25% of 1mm, granularity is < 0.088mm electrosmelted magnesite clinker 5 ~ 20%, fine silica powder 1 ~ 10%, clay 1 ~ 5%, bonding agent 1 ~ 10%, agglutinant 5 ~ 25%.
Described bonding agent is one or more mixing of ether, ethylene glycol, machine oil or carbolineum;
Described agglutinant is the mixing by weight 1:1 ~ 4:2 ~ 3:1 ~ 3 of thermoplastic resin, pitch, beta-lactam and NAPTHALENE FLAKES. (INDUSTRIAL GRADE）.
A kind of preparation method's step of Fast Sintering mending material is as follows:
1) electrosmelted magnesite clinker that be the electrosmelted magnesite clinker of 5-10mm by weight percentage by granularity, granularity is the electrosmelted magnesite clinker of 3-5mm, granularity is 1-3mm puts into mixing machine mixing 2 ~ 3 minutes;
2) fine silica powder, clay mixing 5 ~ 10 minutes is added by weight percentage;
3) add the electrosmelted magnesite clinker of agglutinant and granularity≤1mm, the electrosmelted magnesite clinker of granularity < 0.088mm by weight percentage, mix 5 ~ 7 minutes;
4) bonding agent mixing 3 ~ 5 minutes is added by weight percentage.
The invention has the beneficial effects as follows: the present invention is mainly applicable to repairing and the maintenance of steel mill's converter, adopts mending material of the present invention, and the filling time shortens to 10 ~ 30 minutes, greatly reduces the filling time, improve continuous production and the production efficiency of steel mill.Mending material good fluidity of the present invention, sintering posterior spiracle rate is low, has the erosion of excellent heat-resistant knocking stability, spalling resistance and anti-molten steel, penetrating quality, can reduce molten iron washing away converter lining, and then improves the work-ing life of converter.
Embodiment
Embodiment 1 one kinds of Fast Sintering mending materials
(1) proportioning of raw material is as follows:
Granularity is the electrosmelted magnesite clinker 35% of 5-10mm
Granularity is the electrosmelted magnesite clinker 13% of 3-5mm
Granularity is the electrosmelted magnesite clinker 17% of 1-3mm
Granularity is≤electrosmelted magnesite clinker 15% of 1mm
Granularity is the electrosmelted magnesite clinker 10% of < 0.088mm
Fine silica powder 7%
Clay 3%
Bonding agent 2%
Agglutinant 8%
Bonding agent is the mixture of ether and carbolineum;
Agglutinant is the mixing by weight 1:2:3:1 of thermoplastic resin, pitch, beta-lactam and NAPTHALENE FLAKES. (INDUSTRIAL GRADE）.
(2) preparation method:
1) electrosmelted magnesite clinker that be the electrosmelted magnesite clinker of 5-10mm by weight percentage by granularity, granularity is the electrosmelted magnesite clinker of 3-5mm, granularity is 1-3mm puts into mixing machine mixing 3 minutes;
2) add fine silica powder by weight percentage, clay mixes 8 minutes;
3) add the electrosmelted magnesite clinker of agglutinant and granularity≤1mm, the electrosmelted magnesite clinker of granularity < 0.088mm by weight percentage, mix 6 minutes;
4) add bonding agent by weight percentage and mix 3 minutes.
Embodiment 2 one kinds of Fast Sintering mending materials
(1) proportioning of raw material is as follows:
Granularity is the electrosmelted magnesite clinker 30% of 5-10mm
Granularity is the electrosmelted magnesite clinker 20% of 3-5mm
Granularity is the electrosmelted magnesite clinker 20% of 1-3mm
Granularity is≤electrosmelted magnesite clinker 10% of 1mm
Granularity is the electrosmelted magnesite clinker 5% of < 0.088mm
Fine silica powder 5%
Clay 3%
Bonding agent 2%
Agglutinant 5%
Bonding agent is the mixture of ethylene glycol, machine oil and carbolineum;
Agglutinant is the mixing by weight 1:4:3:3 of thermoplastic resin, pitch, beta-lactam and NAPTHALENE FLAKES. (INDUSTRIAL GRADE）.
(2) preparation method is with embodiment 1.
Embodiment 3 one kinds of Fast Sintering mending materials
(1) proportioning of raw material is as follows:
Granularity is the electrosmelted magnesite clinker 28% of 5-10mm
Granularity is the electrosmelted magnesite clinker 15% of 3-5mm
Granularity is the electrosmelted magnesite clinker 17% of 1-3mm
Granularity is≤electrosmelted magnesite clinker 10% of 1mm
Granularity is the electrosmelted magnesite clinker 9% of < 0.088mm
Fine silica powder 5%
Clay 4%
Bonding agent 1%
Agglutinant 7%
Bonding agent is the mixture of ethylene glycol, machine oil and carbolineum;
Agglutinant is the mixing by weight 1:2:2:1 of thermoplastic resin, pitch, beta-lactam and NAPTHALENE FLAKES. (INDUSTRIAL GRADE）.
(2) preparation method is with embodiment 1.
Claims (3)
1. Fast Sintering mending material and preparation method thereof, is characterized in that being made up of following raw materials by weight: the electrosmelted magnesite clinker 10 ~ 30% that the electrosmelted magnesite clinker 25 ~ 55% that granularity is 5-10mm, granularity are 3-5mm, granularity are the electrosmelted magnesite clinker 15 ~ 35% of 1-3mm, granularity is the≤electrosmelted magnesite clinker 5 ~ 25% of 1mm, granularity is < 0.088mm electrosmelted magnesite clinker 5 ~ 20%, fine silica powder 1 ~ 10%, clay 1 ~ 5%, bonding agent 1 ~ 10%, agglutinant 5 ~ 25%.
2. according to a kind of Fast Sintering mending material according to claim 1 and preparation method thereof, it is characterized in that: described bonding agent is one or more mixing of ether, ethylene glycol, machine oil or carbolineum; Described agglutinant is the mixing by weight 1:1 ~ 4:2 ~ 3:1 ~ 3 of thermoplastic resin, pitch, beta-lactam and NAPTHALENE FLAKES. (INDUSTRIAL GRADE）.
3. the preparation method of a kind of Fast Sintering mending material described in claim 1 or 2, is characterized in that step is as follows:
1) electrosmelted magnesite clinker that be the electrosmelted magnesite clinker of 5-10mm by weight percentage by granularity, granularity is the electrosmelted magnesite clinker of 3-5mm, granularity is 1-3mm puts into mixing machine mixing 2 ~ 3 minutes;
2) fine silica powder, clay mixing 5 ~ 10 minutes is added by weight percentage;
3) add the electrosmelted magnesite clinker of agglutinant and granularity≤1mm, the electrosmelted magnesite clinker of granularity < 0.088mm by weight percentage, mix 5 ~ 7 minutes;
4) bonding agent mixing 3 ~ 5 minutes is added by weight percentage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410411790.2A CN105347806A (en) | 2014-08-21 | 2014-08-21 | Rapid-sintering furnace repair material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410411790.2A CN105347806A (en) | 2014-08-21 | 2014-08-21 | Rapid-sintering furnace repair material and preparation method thereof |
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| CN105347806A true CN105347806A (en) | 2016-02-24 |
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| CN201410411790.2A Pending CN105347806A (en) | 2014-08-21 | 2014-08-21 | Rapid-sintering furnace repair material and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109503183A (en) * | 2018-12-26 | 2019-03-22 | 武汉钢铁集团耐火材料有限责任公司 | Large face repair material of converter and preparation method thereof |
| CN110092643A (en) * | 2019-05-16 | 2019-08-06 | 武汉钢铁有限公司 | A kind of combined blown converter furnace bottom material for repairing |
| CN111470852A (en) * | 2019-08-27 | 2020-07-31 | 北京利尔高温材料股份有限公司 | Large fabric for converter |
-
2014
- 2014-08-21 CN CN201410411790.2A patent/CN105347806A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109503183A (en) * | 2018-12-26 | 2019-03-22 | 武汉钢铁集团耐火材料有限责任公司 | Large face repair material of converter and preparation method thereof |
| CN109503183B (en) * | 2018-12-26 | 2022-03-18 | 武汉钢铁集团耐火材料有限责任公司 | Converter large-surface repairing material and preparation method thereof |
| CN110092643A (en) * | 2019-05-16 | 2019-08-06 | 武汉钢铁有限公司 | A kind of combined blown converter furnace bottom material for repairing |
| CN111470852A (en) * | 2019-08-27 | 2020-07-31 | 北京利尔高温材料股份有限公司 | Large fabric for converter |
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160224 |
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| WD01 | Invention patent application deemed withdrawn after publication |