CN102557681A - Micro-expansion self-levelling castable - Google Patents
Micro-expansion self-levelling castable Download PDFInfo
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- CN102557681A CN102557681A CN2011104003005A CN201110400300A CN102557681A CN 102557681 A CN102557681 A CN 102557681A CN 2011104003005 A CN2011104003005 A CN 2011104003005A CN 201110400300 A CN201110400300 A CN 201110400300A CN 102557681 A CN102557681 A CN 102557681A
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Abstract
The invention discloses micro-expansion self-levelling castable used for the high-temperature kiln engineering. Because the micro-expansion self-levelling castable is produced from corundum (or bauxite), andalusite, aluminate cement, activated alumina, silicon gray and the dispersive alumina, wherein the corundum or bauxite is used as the filler, and the aluminate cement is used as the binder, the micro-expansion self-levelling castable achieves the effects of self-levelling and exhausting under the force of gravity per se without being vibrated, reduces the construction labor intensity, can micro-expand at high temperature without influencing the service life and is convenient to construct, the high temperature performance of the refractory material is improved.
Description
Technical field
The present invention relates to a kind of microdilatancy gravity flow pouring material, relate in particular to a kind of kiln engineering that is used for and use the microdilatancy gravity flow pouring material.
Background technology
Mould material is claimed refractory castable again, is a kind ofly to add the granular or powder material that a certain amount of wedding agent is processed by refractory material, has than high workability, is applicable to the unshape refractory with the pouring type moulding.Refractory castable is a kind of refractory materials that is able to widespread use.But traditional mould material basically all need be vibrated construction, in construction process; In order to improve speed of application, perhaps solve the difficult problem that subrange can not vibrate construction, often improve flowing property through adding water; Thereby, cause the mould material segregation, reduced demoulding strength; Improved void content, the overall performance of mould material is significantly degenerated.
Mould material has a wide range of applications in the high temperature kiln industry, and the high temperature kiln industry repair time is all very limited.By cement industry, big slender then two weeks, little length then three or four days, the construction of refractory materials seems hastily especially, many places construction when in addition overhauling, staff is limited, and the vibration construction is slow relatively again, so task is very heavy.In order to finish the work on time, accelerate speed of application, mould material was added water when the most frequently used method was constructed exactly; Improve flowability, convenient construction, but therefore tend to cause the mould material segregation; The top layer efflorescence, situation such as explosion during baking influences the whole use properties of mould material greatly.
Gravity flow pouring material is meant that low cement, ultra-low cement or non-cement refractory castable are characteristic with its mixed flowability, and low cement or ultra-low cement refractory castable with this flowability need not to apply external force and can flow and outgas, and do not have obvious segregation.Because gravity flow pouring material has good flowability, has caused people's attention in recent years, it need not to vibrate, and only leans on self gravitation just can fill, thereby has more advantage at many low cement deposit materials of composition and division in a proportion.
CN 101139209A discloses a kind of fire-resistant gravity flow pouring material and preparation method thereof.The technical scheme that this invention is adopted is: with the alumina particle of 35～55wt%, the alumina fine powder of 5～20wt%, the corundum fine powder of 5～25wt%, the electric smelting haydite sand of 5～30wt%, the pure calcium aluminate cement of 2～10wt%, the silicon powder of 2～6wt%, α-Al of 2～10wt%
2O
3The water reducer of micro mist, 0.1～0.2wt% mixes, and stirring makes.
Gravity flow pouring material is to be utilized in traditional vibrating casting material to add the flowing property that micro mist and admixture reduce its amount of water and raising mould material.Micro mist commonly used mainly contains SiO
2Micro mist mainly is to reduce amount of water and increase flowing property through filling the space; Admixture mainly is to add like water reducer, dispersion agent, dispergator etc.; Mainly all be water-soluble after, through being adsorbed on particle surface, improve the ξDian Wei of particle surface; Increase interparticle mutual repulsive force; Discharge the free-water that wraps up by in the molecular agglutinate structure of particulate, or the colloidal particle, the solids homodisperse that originally flocked together are opened, thereby reach diminishing and improve mobile purpose.So, reach a kind of better diminishing and improve mobile effect, will seek the bigger micro mist of some activity with (or) admixture that some dispersive abilities are stronger.
Summary of the invention
To the deficiency of prior art, one of the object of the invention is to provide a kind of microdilatancy gravity flow pouring material, makes mould material rely on self gravitation can reach from levelling, exhaust voluntarily; Need not vibration; Reduce construction labour intensity, and at high temperature produced microdilatancy, improved the refractory materials high-temperature behavior; Satisfying convenient construction, and do not influence the work-ing life of mould material.
Microdilatancy gravity flow pouring material provided by the present invention, contain:
Wherein, corundum is that bauxitic clay is the artificial material that main raw material is produced through the mining industry stove, can do abrasive material and refractory materials.Described corundum is commercially available corundum refractory raw material, can be fused corundom or alundum.Described alumina is commercially available alumine refractory raw material.
Andaluzite, silit, alumina powder, silicon ash, aluminate cement all can be through the commercially available refractory materials that obtains.
The present invention with its aggregate as gravity flow pouring material, thereby reduces water requirement through utilizing characteristics such as andaluzite particle self type spherical form, water-intake rate are low, improves flowing property; Add a certain amount of activated alumina micro mist and substitute part Si O
2Micro mist, it is active to utilize its fineness to increase, and utilizes its double-peak feature to reach better filling effect, and has reduced SiO
2The add-on of micro mist, the high-temperature behavior of raising material; The control cement mixing content makes the CaO mass content 1.0～2.5%, reaches the level of low cement deposit material, improves high-temperature behavior; Add an amount of andaluzite, utilize the high temperature of andaluzite to expand, offset material at high temperature and shrink, reach the microdilatancy state; Utilize the andaluzite pyrolytic conversion to form mullite, improve the performance index such as thermal shock resistance of material.
As optimal technical scheme, gravity flow pouring material provided by the present invention, also contain the said mixture total amount:
Organic fibre 0～0.2wt%
Dispersion agent 0.4～1.2wt%
Water 3～8wt%.
As optimal technical scheme, the organic fibre described in the gravity flow pouring material provided by the present invention is explosion-proof organic fibre.Organic fibre is fiber of being processed by organic polymer or the fiber that utilizes natural polymer to process through chemical treatment, and like viscose fiber, polyamide fibre, terylene and aramid fiber etc., this fiber is also referred to as regenerated fibre or man-made fiber.
Explosion-proof fiber then is a kind ofly to have a stretch-proof through what special process processed, and is shock-resistant, improves bulk strength, hydrophobic; Exhaust, anti-be full of cracks, anti-explosion; Shorten baking cycle, simplify temperature-rise period, improve a kind of specialty fibers of whole service life, like the explosion-proof fiber of Vestolen PP 7052.Add explosion-proof fiber in the mould material provided by the present invention, make that working as itself and other refractory materials mixes, and after the moulding; Toast, along with storing temperature constantly raises, and this fiber had both begun to soften when reaching certain temperature; Shrink, melt, form pore and carbonization at last, form small network pore thereby in the construction body, distribute; Open the aqueous vapor passage, alleviate internal stress, thereby prevent explosion.
As optimal technical scheme, the dispersion agent described in the gravity flow pouring material provided by the present invention is dispersed aluminum oxide, is preferably the short mixture that coagulates dispersed aluminum oxide and the dispersed aluminum oxide of slow setting.Dispersion agent is a kind of interfacial agent that has oleophilicity and two kinds of opposite nature of wetting ability at intramolecularly simultaneously.But homogeneous disperses those to be difficult to be dissolved in inorganic, the organic solid particulate of liquid, also can prevent the sedimentation and the cohesion of solid particulate simultaneously, forms the required medicament of stable suspension.
Adopt dispersed aluminum oxide and activated alumina as compound use, can increase the dispersion effect of activated alumina, thereby improve flowing property; Adopt short coagulating and two kinds of compound uses of dispersed aluminum oxide of slow setting, the adjustment consumption is controlled rational setting time.
Activated alumina and the compound use of dispersed aluminum oxide are a kind of dispersion, diminishing methods that is different from traditional admixture, and it adopts aluminum oxide is carrier; Can improve the ξDian Wei on micro mist surface, reach dispersion, can form the organic polymer chain of certain-length again through Coulomb repulsion; Rent through space bit and to reach dispersion effect, the eutectic impurity of both having avoided traditional admixture to bring into helps the high-temperature behavior of material; Reach better dispersion, water-reducing effect again, increased flowing property.
As optimal technical scheme, the alumina micro mist described in the gravity flow pouring material provided by the present invention is that fineness is not less than 600 purpose bauxitic clay powders.Described bauxitic clay powder can obtain through commercially available.
As optimal technical scheme, the particle diameter d of the activated alumina micro mist described in the gravity flow pouring material provided by the present invention
50≤2.0 μ m, true density>=3.95g/cm
3, Na
2O content≤0.1wt%.
Said activated alumina micro mist can obtain through commercially available, wherein particle diameter d
50Be small-particle that accounts for total amount 50% in the powder and the oarse-grained boundary size that accounts for total amount 50%.The present invention is through utilizing the particle diameter d of described activated alumina micro mist
50≤2.0 μ m, true density>=3.95g/cm
3, Na
2The mould material that O content≤0.1wt% makes can obtain better dispersion, water-reducing effect, has increased flowing property, thereby obtains superior workability.
One of the object of the invention also is to provide a kind of method of use of mould material of the present invention, presses said proportioning, after each solid material is weighed, mixed and stirred, pours stirrer into; The water that adds regulation again forms needed globality refractory materials lining body after stirring, batch turning, transportation, pouring, the demoulding, maintenance, baking.
Microdilatancy gravity flow pouring material provided by the present invention be with corundum (or alumina) and andaluzite as filler, the employing aluminate cement is a wedding agent, through adding activated alumina micro mist, silicon ash and dispersed aluminum oxide, obtains superior workability.Microdilatancy gravity flow pouring material provided by the present invention can be used for the high temperature kiln engineering; In use make mould material rely on self gravitation can reach, need not vibration, reduced construction labour intensity from levelling, exhaust voluntarily; And at high temperature produce microdilatancy; Improve the refractory materials high-temperature behavior, satisfying convenient construction, and do not influenced mould material work-ing life.
Embodiment
For ease of understanding the present invention, it is following that the present invention enumerates embodiment.Those skilled in the art should understand, and said embodiment only is used for helping to understand the present invention, should not be regarded as concrete restriction of the present invention.
Embodiment one
Weight proportion is: 5-1mm fused corundom 30%, 3-1mm andaluzite 15%; 1-0.088mm fused corundom 20%,＜0.088mm fused corundom 12%,＜0.088mm silit 1%, alumina powder 10%, activated alumina 5%, aluminate cement 7%; Short dispersed aluminum oxide 0.4%, the dispersed aluminum oxide 0.4% of slow setting, organic fibre 0.08%, the water 5.36% of coagulating that adds the said mixture total amount.
By said ratio, solid material is poured stirrer into after weighing, mixing and stirring; Add the silicon sol and the water of regulation again, after stirring, batch turning, transportation, pouring, the demoulding, maintenance, process the lining body, heat-treat back test physicals again.When 20 ℃ of left and right sides, this mould material reach 183.5mm from flow valuve, the physicals of surveying is: 110 ℃ * 24h is dry: folding strength 12.9MPa, compressive strength 105.4MPa; 1100 ℃ * 3h is dry: folding strength 14.1MPa, and compressive strength 113.2MPa, line changes-0.09%; 1350 ℃ * 3h is dry: folding strength 15.6MPa, and compressive strength 152.7MPa, line changes+0.12%.
From the above, mould material has the workability of flowing automatically preferably, and other physical and chemical performances have all satisfied request for utilization.
Embodiment two
Weight proportion is: 5-1mm alumine 21%, 3-1mm andaluzite 21%; 1-0.088mm alumine 21%,＜0.088mm alumine 12%,＜0.088mm silit 3%, alumina powder 8%, activated alumina 5%, silicon ash 2%, aluminous cement 7%; Short dispersed aluminum oxide 0.4%, the dispersed aluminum oxide 0.4% of slow setting, organic fibre 0.08%, the water 5.68% of coagulating that adds the said mixture total amount.
By said ratio, solid material is poured stirrer into after weighing, mixing and stirring; Add the silicon sol and the water of regulation again, after stirring, batch turning, transportation, pouring, the demoulding, maintenance, process the lining body, heat-treat back test physicals again.When 20 ℃ of left and right sides, this mould material reach 203mm from flow valuve, the physicals of surveying is: 110 ℃ * 24h is dry: folding strength 11.3MPa, compressive strength 105.3MPa; 1100 ℃ * 3h is dry: folding strength 13.5MPa, and compressive strength 110.9MPa, line changes-0.14%; 1350 ℃ * 3h is dry: folding strength 14.3MPa, and compressive strength 132.1MPa, line changes+0.07%.
From the above, mould material has the workability of flowing automatically preferably, and other physical and chemical performances have all satisfied request for utilization.
Embodiment three
Weight proportion is: 5-1mm alumine 36%, 3-1mm andaluzite 12%; 1-0.088mm alumine 15%,＜0.088mm alumine 15%, alumina powder 5%, activated alumina 8%, silicon ash 5%, aluminous cement 4%; Short dispersed aluminum oxide 0.5%, the dispersed aluminum oxide 0.3% of slow setting, organic fibre 0.1%, the water 4.8% of coagulating that adds the said mixture total amount.
The through performance test, mould material has the workability of flowing automatically preferably, and other physical and chemical performances have all satisfied request for utilization.
Applicant's statement; The present invention explains detailed process equipment of the present invention and technical process through the foregoing description; But the present invention is not limited to above-mentioned detailed process equipment and technical process, does not mean that promptly the present invention must rely on above-mentioned detailed process equipment and technical process could be implemented.The person of ordinary skill in the field should understand, and to any improvement of the present invention, to the interpolation of the equivalence replacement of each raw material of product of the present invention and ancillary component, the selection of concrete mode etc., all drops within protection scope of the present invention and the open scope.
Claims (7)
1. a microdilatancy gravity flow pouring material is characterized in that, contains:
2. mould material as claimed in claim 1 is characterized in that, also contains the said mixture total amount:
Organic fibre 0～0.2wt%
Dispersion agent 0.4～1.2wt%
Water 3～8wt%.
3. mould material as claimed in claim 2 is characterized in that, described organic fibre is explosion-proof organic fibre.
4. mould material as claimed in claim 2 is characterized in that said dispersion agent is dispersed aluminum oxide, is preferably the short mixture that coagulates dispersed aluminum oxide and the dispersed aluminum oxide of slow setting.
5. like each described mould material of claim 1～4, it is characterized in that described alumina micro mist is that fineness is not less than 600 purpose bauxitic clay powders.
6. like each described mould material of claim 1～5, it is characterized in that the particle diameter d of described activated alumina micro mist
50≤2.0 μ m, true density>=3.95g/cm
3, Na
2O content≤0.1wt%.
7. like the method for use of each described mould material of claim 1～6, it is characterized in that, press said proportioning, after each solid material is weighed, mixed and stirred, pour stirrer into; The water that adds regulation again forms needed globality refractory materials lining body after stirring, batch turning, transportation, pouring, the demoulding, maintenance, baking.
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| CN201110400300.5A CN102557681B (en) | 2011-12-06 | 2011-12-06 | Micro-expansion self-levelling castable |
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| CN201110400300.5A CN102557681B (en) | 2011-12-06 | 2011-12-06 | Micro-expansion self-levelling castable |
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| CN102557681B CN102557681B (en) | 2014-02-12 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058681A (en) * | 2013-01-11 | 2013-04-24 | 成都蜀冶新材料有限责任公司 | Andalusite refractory castable and application method thereof |
| CN103785820A (en) * | 2014-02-17 | 2014-05-14 | 莱芜钢铁集团有限公司 | Ladle permanent lining and manufacturing method thereof |
| CN104086185A (en) * | 2014-06-06 | 2014-10-08 | 甘肃酒钢集团科力耐火材料股份有限公司 | Silica-fume-free self-flow casting material |
| CN105753490A (en) * | 2016-03-11 | 2016-07-13 | 鹤壁市荣铭科技有限公司 | Tap hole medium-temperature-sintering environment-friendly stemming for large- and medium-sized blast furnaces and preparation method of tap hole medium-temperature-sintering environment-friendly stemming |
| CN106187245A (en) * | 2016-07-25 | 2016-12-07 | 宜兴市中环耐火材料有限公司 | A kind of low aluminum micron wear-resistant castable |
| CN106380212A (en) * | 2016-08-30 | 2017-02-08 | 安徽瑞泰新材料科技有限公司 | High-performance self-flow castable |
| CN106630920A (en) * | 2016-10-11 | 2017-05-10 | 洛阳万基炭素有限公司 | Micro-expansion plasticizing material and construction technology of micro-expansion plasticizing material |
| CN109650921A (en) * | 2019-02-22 | 2019-04-19 | 江苏江能新材料科技有限公司 | A kind of gravity flow castable and preparation method thereof |
| CN109678436A (en) * | 2019-01-01 | 2019-04-26 | 中国人民解放军63653部队 | A kind of high temperature resistant Hearth Furnace self-leveling concrete pouring material |
| CN113135722A (en) * | 2021-05-14 | 2021-07-20 | 焦作金鑫恒拓新材料股份有限公司 | Self-flowing heat-resistant concrete using reclaimed materials |
| CN116768610A (en) * | 2023-06-30 | 2023-09-19 | 本溪钢铁（集团）矿业有限责任公司 | Formula and preparation method of refractory material for repairing pellet production line equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0437483B1 (en) * | 1988-10-05 | 1993-08-11 | Comalco Aluminium, Ltd. | Low cement refractory |
| CN101665366A (en) * | 2009-10-20 | 2010-03-10 | 瑞泰科技股份有限公司 | Composite abrasion resistant and thermal shock resistant pouring material |
| CN102101784A (en) * | 2011-02-22 | 2011-06-22 | 佘成其 | Lightweight reformed main iron runner pouring material |
-
2011
- 2011-12-06 CN CN201110400300.5A patent/CN102557681B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0437483B1 (en) * | 1988-10-05 | 1993-08-11 | Comalco Aluminium, Ltd. | Low cement refractory |
| CN101665366A (en) * | 2009-10-20 | 2010-03-10 | 瑞泰科技股份有限公司 | Composite abrasion resistant and thermal shock resistant pouring material |
| CN102101784A (en) * | 2011-02-22 | 2011-06-22 | 佘成其 | Lightweight reformed main iron runner pouring material |
Non-Patent Citations (1)
| Title |
|---|
| 中国冶金百科全书总编辑委员会《耐火材料卷》编辑委员会等: "《中国冶金百科全书（耐火材料）》", 31 October 1997, 冶金工业出版社 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058681A (en) * | 2013-01-11 | 2013-04-24 | 成都蜀冶新材料有限责任公司 | Andalusite refractory castable and application method thereof |
| CN103058681B (en) * | 2013-01-11 | 2014-10-22 | 成都蜀冶新材料有限责任公司 | Andalusite refractory castable and application method thereof |
| CN103785820A (en) * | 2014-02-17 | 2014-05-14 | 莱芜钢铁集团有限公司 | Ladle permanent lining and manufacturing method thereof |
| CN103785820B (en) * | 2014-02-17 | 2016-02-10 | 莱芜钢铁集团有限公司 | A kind of ladle permanent liner and preparation method thereof |
| CN104086185A (en) * | 2014-06-06 | 2014-10-08 | 甘肃酒钢集团科力耐火材料股份有限公司 | Silica-fume-free self-flow casting material |
| CN105753490A (en) * | 2016-03-11 | 2016-07-13 | 鹤壁市荣铭科技有限公司 | Tap hole medium-temperature-sintering environment-friendly stemming for large- and medium-sized blast furnaces and preparation method of tap hole medium-temperature-sintering environment-friendly stemming |
| CN106187245A (en) * | 2016-07-25 | 2016-12-07 | 宜兴市中环耐火材料有限公司 | A kind of low aluminum micron wear-resistant castable |
| CN106380212A (en) * | 2016-08-30 | 2017-02-08 | 安徽瑞泰新材料科技有限公司 | High-performance self-flow castable |
| CN106630920A (en) * | 2016-10-11 | 2017-05-10 | 洛阳万基炭素有限公司 | Micro-expansion plasticizing material and construction technology of micro-expansion plasticizing material |
| CN109678436A (en) * | 2019-01-01 | 2019-04-26 | 中国人民解放军63653部队 | A kind of high temperature resistant Hearth Furnace self-leveling concrete pouring material |
| CN109650921A (en) * | 2019-02-22 | 2019-04-19 | 江苏江能新材料科技有限公司 | A kind of gravity flow castable and preparation method thereof |
| CN113135722A (en) * | 2021-05-14 | 2021-07-20 | 焦作金鑫恒拓新材料股份有限公司 | Self-flowing heat-resistant concrete using reclaimed materials |
| CN113135722B (en) * | 2021-05-14 | 2023-03-03 | 焦作金鑫恒拓新材料股份有限公司 | Self-flowing heat-resistant concrete using reclaimed materials |
| CN116768610A (en) * | 2023-06-30 | 2023-09-19 | 本溪钢铁（集团）矿业有限责任公司 | Formula and preparation method of refractory material for repairing pellet production line equipment |
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