CN101348378A - Sol combined fire resistant repair material and repair method - Google Patents
Sol combined fire resistant repair material and repair method Download PDFInfo
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- CN101348378A CN101348378A CNA2008101968141A CN200810196814A CN101348378A CN 101348378 A CN101348378 A CN 101348378A CN A2008101968141 A CNA2008101968141 A CN A2008101968141A CN 200810196814 A CN200810196814 A CN 200810196814A CN 101348378 A CN101348378 A CN 101348378A
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Abstract
The invention relates to the technical field of a refractory material, in particular to a sol-bonded refractory repair material and a repair method thereof. In order to overcome the disadvantages that the prior refractory repair material is low in high-temperature bonding strength, slow to solidify, difficult to bake fast, easy to fall off, poor in anti-erosion capability, and so on, and the invention provides the sol-bonded refractory repair material, consisting of a repair material matrix, silicon carbide, silicon oxide or alumina micropowder, sol and promoting coagulant. Compared with the prior art, the refractory repair material can increase the bonding strength of the repair material with a furnace lining of a main channel, a slag groove, a hot metal ladle, a torpedo tank or other place, has good durability, prolongs the service life of the furnace lining, decreases repair time, simultaneously raises the anti-erosion capability of the furnace lining, and reduces the refractory material consumption of iron systems.
Description
Technical field
The present invention relates to technical field of refractory materials, be specifically related to a kind of sol combined fire resistant patching material and method for repairing and mending.
Background technology
The semidrying repair material is adopted in the repairing of position furnace linings such as the iron runner of ironmaking system, slag runner, hot metal ladle, torpedo jar in the past usually, main component is brown corundum, alumina, clay, phosphoric acid salt or cement with high level are wedding agent, and cohesive strength is low, peels off easily.Phosphoric acid salt or cement are that wedding agent can be brought low-melting material into, and big to lining erosion, result of use is bad, and the life-span is low, and durability is bad.The repair material that is used to transport molten steel or molten iron container refractorily lined of Kawasaki, Japan refractory Company development, material contains the pitch of calcium lactate, Aluctyl and 1～10wt%, the B of 0.5～2wt%
4The silica aqueous solution of the SiC powder of C powder, 0.5～2wt% is made binding agent.Domestic technical study report to colloidal sol a lot, but mainly concentrate in ultrafine powder manufacturing, the research in conjunction with research, mould material research, coating mutually, and seldom as the research of refractory patching mixture, main difficulty is if adopt the method for mechanical spray repair, the bad processing of mode that adds wedding agent is difficult to accurately quantitatively, simultaneously because former silicon sol is lower in conjunction with the Gunning refractory strength ratio that forms, bonding strength is not high, so the successful report of this respect seldom.
Summary of the invention
The objective of the invention is to overcome existing refractory patching mixture high temperature bonding intensity low, solidify slow, be difficult to quick baking, come off easily, shortcoming such as corrosion resistance difference, the invention provides a kind of sol combined fire resistant patching material.
Another object of the present invention is to provide a kind of method for repairing and mending that adopts the sol combined fire resistant patching material.
In order to achieve the above object, the technical solution used in the present invention is: a kind of sol combined fire resistant patching material, its special character is: its component and weight part are, repair material matrix: 55～90 parts, less than 200 purpose silicon carbide: 0～35 part, the micro mist of silicon oxide and aluminum oxide: 3～8 parts, colloidal sol: 3～20 parts, promote 0.02～5 part in peptizer.
Above-mentioned repair material matrix is that 50%～85% coarse aggregate and 15%～50% powder are formed by weight percentage.
Coarse aggregate in the above-mentioned repair material matrix is that granularity is corundum, mullite, alumina, flint clay, clay or its mixture of 1-10mm.
Powder in the above-mentioned repair material matrix is corundum, mullite, alumina, flint clay or its mixture.
The particle of above-mentioned silicon carbide is less than 200 orders.
The micro mist of above-mentioned silica alumina is that granularity is that 5 μ m～90 μ m and granularity are the fine powder mixture of 0.5 μ m～5 μ m.
Above-mentioned colloidal sol is water silica sol, and the content of silicon oxide is 10～45% in the silicon sol.
Above-mentioned promotion peptizer is aluminous cement or luminite cement.
A kind of method for repairing and mending, its special character are to adopt above-mentioned sol combined fire resistant patching material, and this method may further comprise the steps:
(1) coarse aggregate and powder are carried out just mixing forming the repair material matrix, add the micro mist of silicon carbide, silicon oxide and aluminum oxide again and promote that peptizer mixes;
(2) add after colloidal sol mixes spray repair or subsidize position to be repaired;
(3) be dried to the surface stiff;
(4) toast then, storing time is 1-5 hour.
Compared with prior art, the beneficial effect of the technical solution used in the present invention generation is as follows:
The present invention can improve the cohesive strength of position furnace linings such as repair material and tap drain, slag runner, hot metal ladle, torpedo jar, and durability is good, prolongs the life-span of furnace lining, reduces and builds by laying the time; Improve the corrosion resistance of furnace lining simultaneously, reduced iron system refractory consumption rate.
Embodiment
Describe technical scheme of the present invention in detail below in conjunction with specific embodiment.
Embodiment one: a kind of sol combined fire resistant patching material, its component and weight part are: 70 parts in alumina, 10 parts of flint claies, wherein coarse aggregate 70%, powder 30%, less than 200 purpose silicon carbide: 5 parts, 3.5 parts of the micro mists of 3.5 parts of the micro mists of silicon oxide, aluminum oxide, silicon sol: 7 parts, 1 part of aluminous cement.
A kind of method for repairing and mending that adopts above-mentioned sol combined fire resistant patching material, this method may further comprise the steps:
(1) the repair material matrix that the coarse aggregate and the powder of 70 parts in alumina, 10 parts of flint claies are formed carries out just mixing, add the micro mist of 5 parts of micro mists, 3.5 parts of aluminum oxide again less than 200 purpose silicon carbide, 3.5 parts of silicon oxide, 1 part of aluminous cement is pre-mixed evenly packed for standby use in the Forced Mixing machine;
(2) packaged refractory patching mixture is put into the hopper of semi dry gunning machine or wet type spray repairing machine, the rifle head adds the solution of 7 parts of silicon sol, forms the mud spray repair, forms adhesion layer on furnace lining; Also can in mixing machine, add silicon sol solution, directly be mixed into the repairing pug and manually subsidize or spread out benefit;
(3) it is earlier little fiery 2 hours to leave standstill stiff back, surface, changes big fire and can use after 3 hours, and hot also being not easy peeled off.
The sol combined fire resistant repair material is 12.4MPa through the dried ultimate compression strength of 24h under 110 ℃ condition; Under 1000 ℃ condition, burning back ultimate compression strength through 3h is 43.9MPa; Under 1450 ℃ condition, burning back ultimate compression strength through 3h is 46.8MPa.
Embodiment two: a kind of sol combined fire resistant patching material, its component and weight part are: 66.5 parts of sub-white corundums, 10 parts of sintering plate corundums, wherein coarse aggregate 70%, powder 30%, less than 200 purpose silicon carbide: 12 parts, 2.5 parts of the micro mists of 2.5 parts of the micro mists of silicon oxide, aluminum oxide, aluminous cement: 0.5 part.
A kind of method for repairing and mending that adopts above-mentioned sol combined fire resistant patching material, this method may further comprise the steps:
With 66.5 parts of sub-white corundums, 10 parts of sintering plate corundums, 12 parts less than 200 purpose silicon carbide, the micro mist of the micro mist of 2.5 parts of silicon oxide, 2.5 parts of aluminum oxide, and 0.5 part of aluminous cement is pre-mixed evenly packed for standby use in the Forced Mixing machine; Packaged sol combined fire resistant repair material is put in the Forced Mixing machine, added the solution of 6 parts of silicon sol; Form the pug of repairing, in hot metal ladle or iron runner, subsidize or spread out benefit.The very fast drying of repair material has just been toasted and can have been come into operation, and hot being not easy peeled off.
The sol combined fire resistant repair material is 19.0MPa through the dried ultimate compression strength of 24h under 110 ℃ condition; Under 1000 ℃ condition, burning back ultimate compression strength through 3h is 31.4MPa; Under 1450 ℃ condition, burning back ultimate compression strength through 3h is 41.5MPa.
Embodiment three: a kind of sol combined fire resistant patching material, and its component and weight part are: 66.4 parts in alumina, 10 parts in corundum, wherein coarse aggregate 85%, powder 15%, less than 200 purpose silicon carbide: 12 parts, 3 parts of the micro mists of 3 parts of the micro mists of silicon oxide, aluminum oxide, luminite cement: 0.6 part.
A kind of method for repairing and mending that adopts above-mentioned sol combined fire resistant patching material, this method may further comprise the steps:
With 66.4 parts in alumina, 10 parts in corundum, 12 parts of silicon carbide, 3 parts of the micro mists of 3 parts of the micro mists of silicon oxide, aluminum oxide, 0.6 part of luminite cement is pre-mixed evenly packed for standby use in the Forced Mixing machine; Packaged sol combined fire resistant repair material is put into the hopper of mixing machine, add the solution of 5 parts of silicon sol, stir; Form pug, repair the formation repair layer at the broken parts of main iron hook, the dry appropriate baking in back can be come into operation.
The sol combined fire resistant repair material is 14.3MPa through the dried ultimate compression strength of 24h under 110 ℃ condition; Under 1000 ℃ condition, burning back ultimate compression strength through 3h is 38.5MPa; Under 1450 ℃ condition, burning back ultimate compression strength through 3h is 48.1MPa.
Embodiment four: a kind of sol combined fire resistant patching material, its component and weight part are: 78 parts in alumina, 10 parts in corundum, wherein coarse aggregate 85%, powder 15%, 3 parts of the micro mists of 3 parts of the micro mists of silicon oxide, aluminum oxide, luminite cement: 1 part.
A kind of method for repairing and mending that adopts above-mentioned sol combined fire resistant patching material, this method may further comprise the steps:
With 78 parts in alumina, 10 parts in corundum, 3 parts of the micro mists of 3 parts of the micro mists of 3 parts of the micro mists of silicon oxide, aluminum oxide, aluminum oxide, 1 part of luminite cement is pre-mixed evenly packed for standby use in the Forced Mixing machine; Packaged sol combined fire resistant repair material is put into the hopper of mixing machine, add the solution of 5 parts of silicon sol, stir; Form pug, repair the formation repair layer, can come into operation after the drying at the broken parts of iron runner.
The sol combined fire resistant repair material is 8.8MPa through the dried ultimate compression strength of 24h under 110 ℃ condition; Under 1000 ℃ condition, burning back ultimate compression strength through 3h is 13.1MPa; Under 1450 ℃ condition, burning back ultimate compression strength through 3h is 43.5MPa.
The above only is preferred embodiment of the present invention, and not in order to restriction the present invention, common variation that those skilled in the art carries out in the technical solution of the present invention scope and replacement all should be included in protection scope of the present invention.
Claims (9)
1, a kind of sol combined fire resistant patching material is characterized in that: its component and weight part are the repair material matrix: 55～90 parts, and silicon carbide: 0～35 part, the micro mist of silicon oxide and aluminum oxide: 3～8 parts, colloidal sol: 3～20 parts, promote 0.02～5 part in peptizer.
2, a kind of sol combined fire resistant patching material according to claim 1 is characterized in that: described repair material matrix is that 50%～85% coarse aggregate and 15%～50% powder are formed by weight percentage.
3, a kind of sol combined fire resistant patching material according to claim 2 is characterized in that: the coarse aggregate in the described repair material matrix is that granularity is corundum, mullite, alumina, flint clay, clay or its mixture of 1-10mm.
4, a kind of sol combined fire resistant patching material according to claim 2 is characterized in that: the powder in the described repair material matrix is corundum, mullite, alumina, flint clay or its mixture.
5, a kind of sol combined fire resistant patching material according to claim 1, it is characterized in that: the particle of described silicon carbide is less than 200 orders.
6, a kind of sol combined fire resistant patching material according to claim 1 is characterized in that: the micro mist of described silicon oxide and aluminum oxide is that granularity is that 5 μ m～90 μ m and granularity are the fine powder mixture of 0.5～5 μ m.
7, a kind of sol combined fire resistant patching material according to claim 1, it is characterized in that: described colloidal sol is water silica sol, the content of silicon oxide is 10～45% in the silicon sol.
8, a kind of sol combined fire resistant patching material according to claim 1, it is characterized in that: described promotion peptizer is aluminous cement or luminite cement.
9, a kind of method for repairing and mending is characterized in that adopting each described colloidal sol of claim 1-8 in conjunction with anti-patching material, and this method may further comprise the steps:
(1) coarse aggregate and powder are carried out just mixing forming the repair material matrix, add the micro mist of silicon carbide, silicon oxide and aluminum oxide again and promote that peptizer mixes;
(2) add after colloidal sol mixes spray repair or subsidize position to be repaired;
(3) be dried to the surface stiff;
(4) toast then, storing time is 1-5 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101968141A CN101348378A (en) | 2008-08-29 | 2008-08-29 | Sol combined fire resistant repair material and repair method |
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| CNA2008101968141A CN101348378A (en) | 2008-08-29 | 2008-08-29 | Sol combined fire resistant repair material and repair method |
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Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101921132A (en) * | 2010-09-25 | 2010-12-22 | 郑州九环科贸有限公司 | Lining patching material of iron-smelting blast furnace |
| CN102491769A (en) * | 2011-12-06 | 2012-06-13 | 安徽瑞泰新材料科技有限公司 | Composite bonding low-temperature constructional castable refractory |
| CN102491768A (en) * | 2011-12-06 | 2012-06-13 | 安徽瑞泰新材料科技有限公司 | Composite bonding wear-resistant castable refractory |
| CN102491771A (en) * | 2011-12-06 | 2012-06-13 | 安徽瑞泰新材料科技有限公司 | Composite castable refractory |
| CN102633509A (en) * | 2012-03-15 | 2012-08-15 | 新疆豫丰光伏材料科技有限公司 | Special sealant for silicon carbide synthesis furnace |
| CN102633507A (en) * | 2011-02-15 | 2012-08-15 | 三和耐火工业股份有限公司 | Silicasol casting material for blast furnace sprue |
| CN102896307A (en) * | 2012-11-02 | 2013-01-30 | 河南海格尔高温材料有限公司 | Torpedo ladle opening sprue bushing repair method |
| CN101723690B (en) * | 2009-04-27 | 2013-04-24 | 中钢集团耐火材料有限公司 | Self-flow castable for filling back seam of side wall of aluminium electrolytic bath |
| CN103214248A (en) * | 2012-08-02 | 2013-07-24 | 中冶武汉冶金建筑研究院有限公司 | Blast furnace on-line extruding repairing material with high intensity, and good volume and thermal shock stability |
| CN105801144A (en) * | 2016-04-12 | 2016-07-27 | 安徽马钢耐火材料有限公司 | High-quality high-aluminum runner brick as well as preparation method and application thereof |
| CN106083075A (en) * | 2016-06-06 | 2016-11-09 | 武汉威林科技股份有限公司 | The restorative procedure of blast-furnace shaft upper inner liner wet spray material, its application and blast-furnace shaft upper inner liner |
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| CN108911764A (en) * | 2018-06-19 | 2018-11-30 | 佘春霞 | A kind of fast gravity die blast furnace crucibe repairing material |
| CN109369159A (en) * | 2018-11-16 | 2019-02-22 | 英赛德耐火材料（镇江）有限公司 | Anti- infiltration Rapid-Repair castable of one kind and preparation method thereof |
| CN110204317A (en) * | 2018-02-28 | 2019-09-06 | 洛阳轩石新材料科技有限公司 | A kind of vapor-permeable type hot-patch material and construction method for vulcanizing air brick of steel ladle online |
| CN110642631A (en) * | 2019-10-11 | 2020-01-03 | 鄂尔多斯市瀚博科技有限公司 | Ramming material for ladle lining and preparation method thereof |
| CN110642611A (en) * | 2019-10-11 | 2020-01-03 | 鄂尔多斯市瀚博科技有限公司 | Refractory ramming mass for iron ladle of ferrosilicon electric furnace and preparation method thereof |
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| CN114133255A (en) * | 2021-12-17 | 2022-03-04 | 河北鑫达钢铁集团有限公司 | Heating furnace heat storage box body repairing material and preparation method thereof |
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| CN101723690B (en) * | 2009-04-27 | 2013-04-24 | 中钢集团耐火材料有限公司 | Self-flow castable for filling back seam of side wall of aluminium electrolytic bath |
| CN101921132A (en) * | 2010-09-25 | 2010-12-22 | 郑州九环科贸有限公司 | Lining patching material of iron-smelting blast furnace |
| CN102633507A (en) * | 2011-02-15 | 2012-08-15 | 三和耐火工业股份有限公司 | Silicasol casting material for blast furnace sprue |
| CN102491769B (en) * | 2011-12-06 | 2014-05-07 | 安徽瑞泰新材料科技有限公司 | Composite bonding low-temperature constructional castable refractory |
| CN102491769A (en) * | 2011-12-06 | 2012-06-13 | 安徽瑞泰新材料科技有限公司 | Composite bonding low-temperature constructional castable refractory |
| CN102491768A (en) * | 2011-12-06 | 2012-06-13 | 安徽瑞泰新材料科技有限公司 | Composite bonding wear-resistant castable refractory |
| CN102491771A (en) * | 2011-12-06 | 2012-06-13 | 安徽瑞泰新材料科技有限公司 | Composite castable refractory |
| CN102491771B (en) * | 2011-12-06 | 2014-11-05 | 安徽瑞泰新材料科技有限公司 | Composite castable refractory |
| CN102633509B (en) * | 2012-03-15 | 2013-12-18 | 新疆益丰西部陶瓷材料科技有限公司 | Special sealant for silicon carbide synthesis furnace |
| CN102633509A (en) * | 2012-03-15 | 2012-08-15 | 新疆豫丰光伏材料科技有限公司 | Special sealant for silicon carbide synthesis furnace |
| CN103214248A (en) * | 2012-08-02 | 2013-07-24 | 中冶武汉冶金建筑研究院有限公司 | Blast furnace on-line extruding repairing material with high intensity, and good volume and thermal shock stability |
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| CN105801144A (en) * | 2016-04-12 | 2016-07-27 | 安徽马钢耐火材料有限公司 | High-quality high-aluminum runner brick as well as preparation method and application thereof |
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| CN114620999A (en) * | 2020-12-11 | 2022-06-14 | 中国科学院大连化学物理研究所 | Formula and application of inorganic thermal protection coating repairing material for rocket launching pad |
| CN112624747A (en) * | 2020-12-31 | 2021-04-09 | 长兴兴鹰新型耐火建材有限公司 | High-strength, corrosion-resistant and scouring-resistant castable for waste incineration kiln and preparation method thereof |
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| CN116396628A (en) * | 2021-12-27 | 2023-07-07 | 山东工业陶瓷研究设计院有限公司 | High-temperature-resistant protective coating repairing material and online repairing method |
| CN114455958A (en) * | 2022-02-21 | 2022-05-10 | 山东金泰高温材料有限公司 | Heating furnace refractory material rapid repairing material, method and system |
| CN114890802A (en) * | 2022-05-31 | 2022-08-12 | 湛江自立高温材料有限公司 | Slag adhesion preventing spray coating suitable for smelting clean steel and preparation method and application thereof |
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| CN117776690A (en) * | 2024-02-27 | 2024-03-29 | 北京利尔高温材料股份有限公司 | Sol-combined blast furnace iron runner gunning material |
| CN117776690B (en) * | 2024-02-27 | 2024-05-31 | 北京利尔高温材料股份有限公司 | Sol-combined blast furnace iron runner gunning material |
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Application publication date: 20090121 |