CN102731123B - High-alumina high-temperature fire-resistance casting material and preparation method thereof - Google Patents
High-alumina high-temperature fire-resistance casting material and preparation method thereof Download PDFInfo
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- CN102731123B CN102731123B CN201210247677.6A CN201210247677A CN102731123B CN 102731123 B CN102731123 B CN 102731123B CN 201210247677 A CN201210247677 A CN 201210247677A CN 102731123 B CN102731123 B CN 102731123B
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- 239000000463 material Substances 0.000 title claims abstract description 49
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 238000005266 casting Methods 0.000 title abstract 4
- 239000000843 powder Substances 0.000 claims abstract description 44
- 239000000203 mixture Substances 0.000 claims abstract description 20
- 239000011230 binding agent Substances 0.000 claims abstract description 16
- 239000004576 sand Substances 0.000 claims abstract description 14
- 229910052845 zircon Inorganic materials 0.000 claims abstract description 14
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052782 aluminium Inorganic materials 0.000 claims description 26
- 239000004411 aluminium Substances 0.000 claims description 26
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 22
- 239000005995 Aluminium silicate Substances 0.000 claims description 13
- 235000012211 aluminium silicate Nutrition 0.000 claims description 13
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 13
- 230000032683 aging Effects 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 4
- 150000004645 aluminates Chemical class 0.000 claims description 3
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- NFIYTPYOYDDLGO-UHFFFAOYSA-N phosphoric acid;sodium Chemical compound [Na].OP(O)(O)=O NFIYTPYOYDDLGO-UHFFFAOYSA-N 0.000 claims description 3
- 229910001570 bauxite Inorganic materials 0.000 claims 2
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- -1 diabase Substances 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000004939 coking Methods 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 239000004927 clay Substances 0.000 abstract 1
- 230000015271 coagulation Effects 0.000 abstract 1
- 238000005345 coagulation Methods 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 238000004898 kneading Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000001737 promoting effect Effects 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 230000000694 effects Effects 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 239000011819 refractory material Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 239000007767 bonding agent Substances 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 208000034189 Sclerosis Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000011021 lapis lazuli Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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Abstract
The invention relates to high-alumina high-temperature fire-resistance casting material and a preparation method thereof. The high-alumina high-temperature fire-resistance casting material comprises the following compositions in certain proportion: high alumina material, superfine kaoline, black clay, diabase, binder, coagulation promoting powder, alundum powder, zircon sand and less water, and is prepared by mixing above materials and kneading. The high-alumina high-temperature fire-resistance casting material and the preparation method have the beneficial effects that with the adoption of the integral pouring, thermal insulation property can be enhanced, the hearth temperature can be increased by 60-200 DEG C and the efficiency can be increased by 6%, the smaller a hearth is and the pouring area is larger so that the larger the furnace temperature and the thermal benefits are, and complete deoiling combustion can be conducted in a power station boiler; the content of aluminium oxide is increased, and the zircon sand and the diabase are added, so that the anti-corrosion and wear-resistance properties of the pouring layer can be improved, the boiler body is protected, and the service life of the boiler body can be prolonged by eight times; and more than 50% hearth coking can be reduced.
Description
Technical field
The present invention relates to a kind of unsetting high-temperature refractory, especially a kind of High-Alumina high-temperature flame-proof pouring material and preparation method.
Background technology
Unshape refractory by the granular and powder-material of rational gradation composition and bonding agent, is jointly formed without be shaped and burn till and direct for refractory materials.The essentially consist of unshape refractory is granular and refractory material powdery, according to its service requirements, can be made by various materials, in order to make these refractory materials be combined into integral body, generally all adds the bonding agent of suitable kind and quantity.The kind of unshape refractory is a lot, can classify according to the material of refractory material used, as siliceous, clayey, High-Alumina, magnesia, rhombspar matter, chromium matter, containing zirconium matter etc.General unshape refractory has the features such as preparation process is easy, yield rate is high, heat energy consumption is lower.Meanwhile, during use, there is conformability strong, can be made into firm Integral construction thing.
But its aluminium sesquioxide content of existing High-Alumina unshape refractory is generally all below 75%, it is high temperature resistant, wear-resisting, resistance to antihunt action is slightly inadequate, in its batching, composition is more single simultaneously, the composite performance of multiple resistance to material can not be provided, structure density and the erosion resistance of product are poor, and sclerosis is condensed slower.Now, all kinds ofly take the high-temperature zone of medium and high temperature kiln that coal, electricity, oil, gas be the energy or the inboard wall of burner hearth of combustion chamber (refractory wall and metallic surface) and all need to carry out integrated poured, thickening, Bonded Repair with unshape refractory, the transformation of the particularly cast of the steel rolling furnace wall of metallurgy industry, repairing, boiler roof sealing and Thermal Power Generation Industry water-tube boiler burner hearth wall with refractory lining, refracto, nozzles around the abrasionproof, boiler roof sealing etc. of abrasionproof and walling of flue to utilize common single High-Alumina unshape refractory be to be difficult to reach wear-resisting, high temperature resistant, antidetonation, energy-saving and cost-reducing effect.
Summary of the invention
The object of the invention is the deficiency existing for the above prior art, provide and have that aluminium sesquioxide content is high, composition is diversified, can be on kiln inwall wholely form that density is high, wear-resisting, high temperature resistant, erosion resistance, refractory masses that shock resistance is good, can effectively extend the pot life of kiln, energy-saving and cost-reducing a kind of High-Alumina high-temperature flame-proof pouring material.
Another object of the present invention is to provide a kind of preparation method of High-Alumina high-temperature flame-proof pouring material.
The technical solution adopted in the present invention is: a kind of High-Alumina high-temperature flame-proof pouring material, be that a certain proportion of high aluminium material, superfine kaolin, black mud, diabase, binding agent, short solidifying powder, lapis amiridis, zircon sand and a small amount of water are mixed, ageing mixture makes High-Alumina high-temperature flame-proof pouring material.
Concrete, described a kind of High-Alumina high-temperature flame-proof pouring material, by comprising that following parts by weight component makes: high aluminium material 40-80, superfine kaolin 5-12, black mud 2-8, diabase 2-8, binding agent 5-12, short solidifying powder 2-8, emergy 0.5-1.5, zircon sand 2-8, water 1-5.
Described high aluminium material is superfine or one-level aluminium vanadine, is divided into thick, fine aggregate and fine powder and ultrafine powder.
Described binding agent can be a kind of in aluminate cement or aluminum phosphate.
Described short solidifying powder is a kind of powder body material of phosphoric acid sodium, can be that its configuration proportion of high-alumina cement (more than 625#) is generally preferably 5-6%, and depending on construction weather, the summer, wintry weather can increase when cold for reducing when heat.
A kind of preparation method of High-Alumina high-temperature flame-proof pouring material, its step comprises: first high aluminium material, superfine kaolin, black mud, diabase, emergy, zircon sand and water are mixed, stir grating (comprising grain composition) according to the above ratio, then carry out ageing mixture, then clean to object oil removing, rust cleaning, the dedusting of being laid, the product that ageing mixture is good is added to binding agent and short solidifying powder in proportion, and mix is even again, and lay rapidly, on object that cast, ramming, repairing etc. are laid, floating with skinning loam again after compacting.
The production process of described high aluminium material: the high alumina that starting material is come to the ground such as Henan, Shanxi, Guizhou who knows, through crusher in crushing, be screened into required carse, medium and small aggregate and fine powder; Again fine powder is worn into the ultrafine powder of required fineness through roller mill.The dosage range of its particle is that coarse aggregate accounts for 5%-10% in the umber of high aluminium material 40-80, and middle aggregate accounts for 10%-20%, and fine aggregate accounts for 30%-50%, and fine powder accounts for 20%-40%, and ultrafine powder accounts for 10%-20%.
Wherein, high aluminium material, superfine kaolin, emergy, diabase, zircon sand have effect high temperature resistant, wear-resisting, erosion resistance.Superfine kaolin, black mud, binding agent have the construction of being beneficial to, bonding and strengthen the effect of sticking power, can improve density and the anti-seismic performance of pouring layer integral body.Binding agent reacts pouring layer is condensed rapidly with short solidifying powder.
The invention has the beneficial effects as follows: 1,, owing to being integrated poured, strengthen heat-insulating property, can improve 60-200 ℃ of fire box temperatures and reach 6% with raising thermo-efficiency, and burner hearth is less, cast area is larger, improves furnace temperature and thermal effect beneficial just higher, and apparatus of thermo-electric power boiler can burn completely in de-oiling; 2, because aluminium sesquioxide content improves, and increased zircon sand and diabase, the anticorrosion antiwear performance of pouring layer is improved, protection body of heater, extends body of heater and reaches 8 times work-ing life; 3, can reduce more than 5 0% burner hearth cokings.
Embodiment
Below in conjunction with specific embodiment, the present invention will be described in detail.
Embodiment 1
A high-temperature flame-proof pouring material, by comprising that following parts by weight component makes: high aluminium material 45, superfine kaolin 6, black mud 3, diabase 3, binding agent 6, short solidifying powder 3, emergy 0.6, zircon sand 3, water 2.
Embodiment 2
A high-temperature flame-proof pouring material, by comprising that following parts by weight component makes: high aluminium material 70, superfine kaolin 11, black mud 7, diabase 7, binding agent 11, short solidifying powder 7, emergy 1.4, zircon sand 7, water 4.
Embodiment 3
A high-temperature flame-proof pouring material, by comprising that following parts by weight component makes: high aluminium material 60, superfine kaolin 8, black mud 5, diabase 5, binding agent 8, short solidifying powder 5, emergy 1, zircon sand 5, water 3.
Wherein, described black mud is to produce the coal dust interlayer that excavates out in Hunan China province ， down-hole, by the technological process such as comprise washing, filter, dry, pulverize, sieve, makes, and its refractoriness is more than 1500 degree.Adhesive property is good.
Wherein high aluminium material is superfine, one-level aluminium vanadine, is divided into thick, fine aggregate and fine powder and ultrafine powder, and binding agent can be a kind of in aluminate cement or aluminum phosphate, and short solidifying powder is a kind of powder body material of phosphoric acid sodium.
Described superfine high-aluminium vanadine is that aluminium sesquioxide content is at more than 85% high-aluminium vanadine; One-level high-aluminium vanadine is the high-aluminium vanadine of aluminium sesquioxide content between 80%-85%.Wherein, the particle diameter of fine aggregate is 3-5mm, and coarse aggregate is 5-8mm, and the particle diameter of ultra-fine aggregate is below 01mm; Fine powder is: 65 order-80 orders, ultrafine powder is 180 order-200 orders.Described superfine kaolin be silica content more than 60%, aluminium sesquioxide content is 37%-39%, its advantage is: A, refractoriness are more than 1700 degree; B, adhesive property are good; C, minimizing contraction ratio, Heat stability is good.Described diabase is 65-180 object diabase flours preferably.
A kind of preparation method of High-Alumina high-temperature flame-proof pouring material, first high aluminium material, superfine kaolin, black mud, diabase, emergy, zircon sand and water are mixed in proportion, stir (comprising grain composition), carry out again ageing mixture, object oil removing, rust cleaning, the dedusting of then being laid are clean, the product that ageing mixture is good is added to binding agent and short solidifying powder in proportion, and mix is even again, and lay rapidly, on object that cast, ramming, repairing etc. are laid, floating with skinning loam again after compacting.
The production process of described high aluminium material: the high alumina that starting material is come to the ground such as Henan, Shanxi, Guizhou who knows, through crusher in crushing, be screened into required carse, medium and small aggregate and fine powder; Again fine powder is worn into the ultrafine powder of required fineness through roller mill.The dosage range of its particle is that coarse aggregate accounts for 5%-10% in the umber of high aluminium material 40%-80%, and middle aggregate accounts for 10%-20%, and fine aggregate accounts for 30%-50%, and fine powder accounts for 20%-40%, and ultrafine powder accounts for 10%-20%.
The coal dust interlayer that described black mud Wei excavates out in down-hole, manufactures out by technological processs such as washing, filter, dry, pulverize, sieve, and its refractoriness is more than 1500 degree, and adhesive property is good, produces in Hunan Province.
As described above, it is only preferred embodiment of the present invention, when not limiting scope of the invention process with this, the simple equivalence of generally doing according to the present patent application the scope of the claims and invention description content changes and modifies, and all still remains within the scope of the patent.
Claims (5)
1. a High-Alumina high-temperature flame-proof pouring material, is characterized in that: by comprising following parts by weight component: high aluminium material 40-80, superfine kaolin 5-12, black mud 2-8, diabase 2-8, binding agent 5-12, short solidifying powder 2-8, emergy 0.5-1.5, zircon sand 2-8, water 1-5 mixes, ageing mixture is made;
Wherein preparation process comprises: first above-mentioned parts by weight high aluminium material, superfine kaolin, black mud, diabase, emergy, zircon sand and water are mixed according to the above ratio, stirred, then carry out ageing mixture, mix is even again then the product that ageing mixture is good to be added to binding agent and short solidifying powder in proportion;
Described high aluminium material is superfine or one-level aluminium vanadine, is divided into thick, fine aggregate and fine powder and ultrafine powder, and wherein coarse aggregate accounts for 5%-10%, and middle aggregate accounts for 10%-20%, and fine aggregate accounts for 30%-50%, and fine powder accounts for 20%-40%, and ultrafine powder accounts for 10%-20%.
2. a kind of High-Alumina high-temperature flame-proof pouring material according to claim 1, is characterized in that: described binding agent is a kind of in aluminate cement or aluminum phosphate.
3. a kind of High-Alumina high-temperature flame-proof pouring material according to claim 1, is characterized in that: described short solidifying powder is the powder body material of phosphoric acid sodium.
4. according to the preparation method of the arbitrary described a kind of High-Alumina high-temperature flame-proof pouring material of claim 1-3, it is characterized in that, its step comprises: first high aluminium material, superfine kaolin, black mud, diabase, emergy, zircon sand and water are mixed according to the above ratio, stirred, then carry out ageing mixture, mix is even again then the product that ageing mixture is good to be added to binding agent and short solidifying powder in proportion.
5. the preparation method of a kind of High-Alumina high-temperature flame-proof pouring material according to claim 4, is characterized in that: the production process of described high aluminium material: by bauxite chamotte, through crusher in crushing, be screened into required carse, medium and small aggregate and fine powder; Again fine powder is worn into the ultrafine powder of required fineness through roller mill; The dosage range of its particle is that coarse aggregate accounts for 5%-10% in bauxite chamotte, and middle aggregate accounts for 10%-20%, and fine aggregate accounts for 30%-50%, and fine powder accounts for 20%-40%, and ultrafine powder accounts for 10%-20%.
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103553679A (en) * | 2013-10-31 | 2014-02-05 | 宁夏天纵泓光余热发电技术有限公司 | Light mullite refractory coating |
| CN103539474A (en) * | 2013-11-09 | 2014-01-29 | 宁夏天纵泓光余热发电技术有限公司 | High-aluminum high-strength refractory castable material |
| CN105565828A (en) * | 2014-10-09 | 2016-05-11 | 宁夏天纵泓光余热发电技术有限公司 | Lightweight high-strength thermal-insulation fireproof casting material |
| CN106187244A (en) * | 2016-07-25 | 2016-12-07 | 宜兴市中环耐火材料有限公司 | A kind of anti-coking corrosion resistant castable |
| CN107759235A (en) * | 2016-08-19 | 2018-03-06 | 张丽媛 | A kind of anticorrosive castable |
| CN107344861A (en) * | 2017-07-19 | 2017-11-14 | 合肥铭佑高温技术有限公司 | A kind of kiln inwall high-temperature refractory and preparation method thereof |
| CN115286300A (en) * | 2022-07-04 | 2022-11-04 | 北京太阳宫燃气热电有限公司 | Heat insulation material for boiler bottom plate and top plate and manufacturing process |
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| CN1040574A (en) * | 1989-04-06 | 1990-03-21 | 中国石油化工隔热耐磨衬里工程公司 | Refractory materials as lining |
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