CN104671737B - A kind of high temperature insulating material for torpedo tank car tank number - Google Patents
A kind of high temperature insulating material for torpedo tank car tank number Download PDFInfo
- Publication number
- CN104671737B CN104671737B CN201510071590.1A CN201510071590A CN104671737B CN 104671737 B CN104671737 B CN 104671737B CN 201510071590 A CN201510071590 A CN 201510071590A CN 104671737 B CN104671737 B CN 104671737B
- Authority
- CN
- China
- Prior art keywords
- high temperature
- insulating material
- temperature insulating
- aerogel
- torpedo
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Compositions Of Oxide Ceramics (AREA)
- Glass Compositions (AREA)
Abstract
The present invention relates to a kind of lagging material, particularly a kind of lagging material on the fish torpedo ladle of smelting iron and steel.The invention provides a kind of high temperature insulating material for torpedo tank car tank number, it comprises nano heat-insulating layer and strengthening layer, and wherein thermofin forms primarily of following raw material: nanometer titanium dioxide silica aerogel; Threadiness superfine E-glass fibre glass or resurrection glass fibre; Silica fiber; Polycrystalline mullite fibre; Pottery; Aluminium sesquioxide aerogel; Hydrophobizing agent; One or more in crystal whisker of hexa potassium titanate, silicon carbide, zirconium silicate and pure aluminium silicate; Alumina; Citric acid or tripoly phosphate sodium STPP; Gypsum; Described strengthening layer adopts and strengthens resin and cloth; Nanometer high temperature insulating material heat-proof quality prepared by the present invention is excellent, has higher intensity and globality, and has more hole, can at utmost keep electronic signal by property, can not signal shielding be produced.
Description
Technical field
The application relates to a kind of lagging material, particularly the high temperature insulating material of a kind of torpedo tank car tank for smelting iron and steel number.
Background technology
In field of metallurgy, blast-meltedly need to be transported in converter by hauling operation system to make steel, it mainly comprises the following steps: blast furnace casting water-fish torpedo ladle is transported to steel-making-> by molten iron-> fish torpedo ladle and pours ladle desulfurization-> into and pour converter steelmaking into according to quantity, and the energy loss that tank switching process wherein produces is very large.And fish torpedo ladle and ladle to be united two into one be the effective means solving this problem at present; Need in the process on tank body, to arrange identification marking to facilitate the corresponding information of control and each tank of production station personal identification, as tank body position, weight of molten iron, composition, slack tank weight etc., at present, most enterprises adopts painting brush number on tank body to carry out naked eyes identification, and minority adopts pattern recognition; But blast furnace operation bad environments, have high temperature, feature such as height (metal) dust, high degree of corrosion etc., it is low that efficiency is known by tional identification side, and error rate is high, adopting electronic mark to be fixed on tank body to carry out identifying, is that current a kind of level of automation is high, the RM that accuracy rate is good;
But, because pot temperature is too high, high temperature resistant heat insulation material need be adopted to wrap up electronic mark, prevent mark components and parts from just occurring damaging after exceeding the operation of the highest tolerable temperature short period of time.But it is narrower to there is size distribution in current high temperature material, under hyperthermia radiation environment, the heat insulation time is short, rejection rate is low, the defects such as moisture resistance osmotic pressure ability, work-ing life are short, can affect receiving and transmitting signal intensity or the direct shielded signal of electronic mark signal in addition.Therefore a kind of not only high-temperature corrosion resistance is urgently developed but also can not the type material of shielded signal.
Conventional heat-stable material known is at present the WDS series lagging material that German Bai Kesen company manufactures, and be the nanometer level microporous lagging material of current better performances, but its manufacturing cost is high, and is monopolized by offshore company, be difficult to promote at home;
The present invention is directed to Problems existing in currently available technology, propose a kind of effect of heat insulation remarkable, long service life, the novel heat insulation material that manufacturing cost is lower, it has high temperature resistant, corrosion-resistant and signal by the strong feature of property, is specially adapted in the severe high temperature of production environment, high corrosive environment.
Summary of the invention
The invention provides a kind of high temperature insulating material for torpedo tank car tank number, it comprises nano heat-insulating layer and strengthening layer, and wherein thermofin forms primarily of following raw material:
Nanometer titanium dioxide silica aerogel;
Threadiness superfine E-glass fibre glass or resurrection glass fibre;
Silica fiber;
Polycrystalline mullite fibre;
Pottery;
Aluminium sesquioxide aerogel;
Hydrophobizing agent;
One or more in crystal whisker of hexa potassium titanate, silicon carbide, zirconium silicate and pure aluminium silicate;
Alumina;
Citric acid or tripoly phosphate sodium STPP;
Gypsum;
Described strengthening layer adopts and strengthens resin and cloth;
As preferably, the mass percent of each component of described thermofin is as follows:
Nanometer titanium dioxide silica aerogel, 30-60%;
Threadiness superfine E-glass fibre glass or resurrection glass fibre, 20-35%;
Silica fiber, 5-30%;
Polycrystalline mullite fibre, 1-10%;
Pottery, 10-20%;
Aluminium sesquioxide aerogel, 0-5%;
Hydrophobizing agent, 0-3%;
One or more in crystal whisker of hexa potassium titanate, silicon carbide, zirconium silicate and pure aluminium silicate, 1-10%;
Alumina, 0-10%;
Citric acid or tripoly phosphate sodium STPP, 0-4%;
Gypsum, 3-5%;
Thermofin of the present invention adopts following methods preparation, the steps include:
(1) first by nanometer titanium dioxide silica aerogel, fibrous superfine E-glass fibre glass or resurrection glass fibre, silica fiber, polycrystalline mullite fibre mixing, adopt agitator to be uniformly dispersed, during dispersion, stirring velocity is 500-800r/min; Add a small amount of water and continue stirring 1 minute, then add citric acid or tripoly phosphate sodium STPP and gypsum, obtain mixture.
(2) mixture continues to stir, form paste mixture solidification and obtain fine and closely woven stable foams, put it in stoving oven, dry 20 minutes at 150-250 DEG C, take out solid after drying, employing pulverizer is pulverized, and cross 400 mesh sieves, then add in pottery, aluminium sesquioxide aerogel, hydrophobizing agent, alumina and crystal whisker of hexa potassium titanate, silicon carbide, zirconium silicate and pure aluminium silicate one or more, after mixing, sinter molding at 1000-1500 DEG C, pulverized by sintering solid, and nanoscale heat insulating material is prepared in compression molding;
(3) with inorganic fibre cloth parcel nano material, be binding agent with resin, intensive treatment carried out to the surface of nanometer heat insulation material, forms strengthening layer on the surface at nanometer heat insulation material, finally obtain high-temperature heat insulation lagging material;
As preferably, the median size of described nanometer titanium dioxide silica aerogel is 10-20nm; The preparation of preferred employing sol-gel method, can adopt the industrial-grade sodium silicate of low cost to be silicon source, preparation porosity up to 99.8% nanoporous aerogel.
As preferably, hydrophobic fumed silica selected by hydrophobizing agent;
Density is low, specific surface area, porosity is high advantage that the present invention adopts aerosil to have, except having high performance heat-proof quality, its gel network formed significantly can reduce the obstruct to electronic pulse signal.
The beta glass fibre that the present invention adopts has lower thermal conductivity, and the glass fibre added wherein is fluffy state, can and other material between form thread glue and join, can the intensity of remarkable strongthener.
Adding gypsum can as peptizer, and the present invention finds to be joined in material to make material have fine and closely woven pore, most important to the formation of porous structure material;
Add citric acid or tripoly phosphate sodium STPP as retardant, it can gypsum in material and fiber be combined, and especially with the calcium binding in gypsum, slows down slurry rate of set, obtains high strength light material;
The high temperature insulating material that the present invention obtains compared with prior art has following beneficial effect:
(1) the present invention adopts fiber and resin strengthening thermofin, significantly can improve surface quality and the bulk strength of material under the prerequisite retaining nano heat-insulating performance;
(2) the thermofin of the present invention top temperature that can tolerate is up to 1500 DEG C, can be applicable to the lagging material as electronic mark in metallurgical tank body completely;
(3) add in crystal whisker of hexa potassium titanate, silicon carbide, zirconium silicate and pure aluminium silicate in thermofin of the present invention one or more, above-mentioned materials add the high temperature insulating performance significantly improved, especially to molten iron tank body produce infrared emanation there is better heat-insulating property;
(4) stability of material that the material that the present invention adopts obtains is high; Nanometer high temperature insulating material heat-proof quality prepared by the present invention is excellent, has higher intensity and globality, and has more hole, can at utmost keep electronic signal by property, can not signal shielding be produced;
(5) lagging material suitability of the present invention is high, directly can adhere to and use position, have wider range of application and stronger practicality.
Embodiment:
Below in conjunction with specific embodiment, the present invention is described in further detail:
Embodiment 1
First thermofin is prepared: adopt sol-gel method to prepare nanometer titanium dioxide silica aerogel, industry level water glass is adopted to be silicon source, obtained nanometer titanium dioxide silica aerogel particle diameter is 10nm, porosity is more than 99.92%, by 30%(weight percent, lower with) nanometer titanium dioxide silica aerogel and 20% fibrous superfine E-glass fibre glass, the silica fiber of 5%, the polycrystalline mullite fibre mixing of 5%, adopt agitator to be uniformly dispersed, during dispersion, stirring velocity is 700r/min; Add a small amount of water and continue stirring 1 minute, then add the citric acid of 3% and the gypsum of 4%, obtain mixture.Mixture continues to stir, form paste mixture solidification and obtain fine and closely woven stable foams, put it in stoving oven, dry 20 minutes at 150-250 DEG C, take out solid after drying, employing pulverizer is pulverized, and crosses 400 mesh sieves, then adds 10% pottery, 5% aluminium sesquioxide aerogel, 3% hydrophobizing agent, 5% alumina and 10% crystal whisker of hexa potassium titanate, after mixing, sinter molding at 1000-1500 DEG C, pulverized by sintering solid, and nanoscale heat insulating material is prepared in compression molding;
Surface strengthening is carried out to the thermofin of preparation: with inorganic fibre cloth parcel nano material, be binding agent with resin, intensive treatment carried out to the surface of nanometer heat insulation material, forms strengthening layer on the surface at nanometer heat insulation material, finally obtain high-temperature heat insulation lagging material; Resulting materials thermal conductivity is 0.015w/m.K, and density is 0.35g/cm
3, compressive strength is greater than 0.9Mpa, and 1000 DEG C of volumetric shrinkages are 3.42%.
Embodiment 2:
Method is similarly to Example 1 adopted to prepare nanometer high temperature insulating material; The raw material added and weight percent as follows: nanometer titanium dioxide silica aerogel 40%; Resurrection glass fibre 20%; Silica fiber 10%; Polycrystalline mullite fibre 5%; Pottery 10%; Aluminium sesquioxide aerogel 1%; Hydrophobizing agent 1%; Silicon carbide 2%; Alumina 5%; Tripoly phosphate sodium STPP 3%; Gypsum 3%; Resulting materials thermal conductivity is 0.012w/m.K, and density is 0.40g/cm
3, compressive strength is greater than 1Mpa, and 1000 DEG C of volumetric shrinkages are 2.72%.
Embodiment 3:
Method is similarly to Example 1 adopted to prepare nanometer high temperature insulating material; The raw material added and weight percent as follows: nanometer titanium dioxide silica aerogel 40%; Resurrection glass fibre 25%; Silica fiber 10%; Polycrystalline mullite fibre 1%; Pottery 10%; Zirconium silicate 5%; Tripoly phosphate sodium STPP 4%; Gypsum 5%; Resulting materials thermal conductivity is 0.009w/m.K, and density is 0.30g/cm
3, compressive strength is greater than 0.85Mpa, and 1000 DEG C of volumetric shrinkages are 4.23%.
Embodiment 4:
Method is similarly to Example 1 adopted to prepare nanometer high temperature insulating material; The raw material added and weight percent as follows: nanometer titanium dioxide silica aerogel 50%; Threadiness superfine E-glass fibre glass 20%; Silica fiber 5%; Polycrystalline mullite fibre 1%; Pottery 15%; Pure aluminium silicate 5%; Gypsum 4%; Resulting materials thermal conductivity is 0.015w/m.K, and density is 0.41g/cm
3, compressive strength is greater than 0.95Mpa, and 1000 DEG C of volumetric shrinkages are 4.19%.
The high temperature insulating material that above-described embodiment prepares is applicable to higher than 1200 DEG C; most High Availabitity is in the high temperature of 1700 DEG C; above-described high temperature insulating material and preparation method thereof; it is only the present invention's preferably embodiment; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the scope that the present invention discloses; can expect that same or analogous change or substitute mode are all in protection scope of the present invention easily, the content that the present invention does not do to state in detail belongs to the common practise of those skilled in the art.
Claims (5)
1., for a high temperature insulating material for torpedo tank car tank number, it comprises nano heat-insulating layer and strengthening layer, the raw material composition of wherein said thermofin and weight percent as follows: nanometer titanium dioxide silica aerogel, 30-60%;
Threadiness superfine E-glass fibre glass or resurrection glass fibre, 20-35%;
Silica fiber, 5-30%;
Polycrystalline mullite fibre, 1-10%;
Pottery, 10-20%;
Aluminium sesquioxide aerogel, 0-5%;
Hydrophobizing agent, 0-3%;
One or more in crystal whisker of hexa potassium titanate, silicon carbide, zirconium silicate and pure aluminium silicate, 1-10%;
Alumina, 0-10%;
Citric acid or tripoly phosphate sodium STPP, 0-4%;
Gypsum, 3-5%.
2., as claimed in claim 1 for the high temperature insulating material of torpedo tank car tank number, it is characterized in that: the median size of described nanometer titanium dioxide silica aerogel is 10-20nm.
3., as claimed in claim 1 for the high temperature insulating material of torpedo tank car tank number, it is characterized in that: hydrophobic fumed silica selected by hydrophobizing agent.
4. preparation is as claimed in claim 1 for the method for the high temperature insulating material of torpedo tank car tank number: it comprises the following steps:
(1) first by nanometer titanium dioxide silica aerogel, fibrous superfine E-glass fibre glass or resurrection glass fibre, silica fiber, polycrystalline mullite fibre mixing, adopt agitator to be uniformly dispersed, during dispersion, stirring velocity is 500-800r/min; Add a small amount of water and continue stirring 1 minute, then add citric acid or tripoly phosphate sodium STPP and gypsum, obtain mixture;
(2) mixture continues to stir, form paste mixture solidification and obtain fine and closely woven stable foams, put it in stoving oven, dry 20 minutes at 150-250 DEG C, take out solid after drying, employing pulverizer is pulverized, and cross 400 mesh sieves, then add in pottery, aluminium sesquioxide aerogel, hydrophobizing agent, alumina and crystal whisker of hexa potassium titanate, silicon carbide, zirconium silicate and pure aluminium silicate one or more, after mixing, sinter molding at 1000-1500 DEG C, pulverized by sintering solid, and nanoscale heat insulating material is prepared in compression molding;
(3) with inorganic fibre cloth parcel nano material, be binding agent with fortified resin, intensive treatment carried out to the surface of nanometer heat insulation material, forms strengthening layer on the surface at nanometer heat insulation material, finally obtain high-temperature heat insulation lagging material.
5. be as claimed in claim 1 used for the heat insulation purposes of fish torpedo ladle electronic mark for the high temperature insulating material of torpedo tank car tank number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510071590.1A CN104671737B (en) | 2015-02-11 | 2015-02-11 | A kind of high temperature insulating material for torpedo tank car tank number |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510071590.1A CN104671737B (en) | 2015-02-11 | 2015-02-11 | A kind of high temperature insulating material for torpedo tank car tank number |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104671737A CN104671737A (en) | 2015-06-03 |
| CN104671737B true CN104671737B (en) | 2016-03-30 |
Family
ID=53307393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510071590.1A Active CN104671737B (en) | 2015-02-11 | 2015-02-11 | A kind of high temperature insulating material for torpedo tank car tank number |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104671737B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107793083B (en) * | 2017-10-30 | 2020-09-29 | 阜南县民安人防工程设备有限公司 | Heat-insulating material with anti-corrosion effect |
| CN109229874B (en) * | 2018-08-15 | 2020-12-08 | 湖州达立智能设备制造有限公司 | Preparation method of plastic packaging material for refrigeration |
| CN110789191B (en) * | 2019-11-21 | 2022-02-01 | 中国科学院兰州化学物理研究所 | Flexible aerogel heat insulation material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101973750A (en) * | 2010-10-21 | 2011-02-16 | 童金荣 | Inorganic heat-insulating material and preparation method thereof |
| CN102964107A (en) * | 2012-10-27 | 2013-03-13 | 山西天一纳米材料科技有限公司 | Inorganic insulation composite material for building energy-saving wall and preparation method thereof |
-
2015
- 2015-02-11 CN CN201510071590.1A patent/CN104671737B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101973750A (en) * | 2010-10-21 | 2011-02-16 | 童金荣 | Inorganic heat-insulating material and preparation method thereof |
| CN102964107A (en) * | 2012-10-27 | 2013-03-13 | 山西天一纳米材料科技有限公司 | Inorganic insulation composite material for building energy-saving wall and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104671737A (en) | 2015-06-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107379672B (en) | high-temperature-resistant multilayer ceramic cotton board | |
| CN104671737B (en) | A kind of high temperature insulating material for torpedo tank car tank number | |
| CN103553686A (en) | Magnesium aluminate spinel foamed ceramic filter as well as preparation method thereof | |
| JPS596272B2 (en) | Unfired refractory composition | |
| CN105948512A (en) | Micro-crystallographic foamed glass prepared from tailings of titanium separation and preparation method | |
| CN110451998A (en) | A kind of bottom of steel ladle castable | |
| CN104478449A (en) | Machined carbon-free corundum spinel brick for ladles and preparation method thereof | |
| CN107973619A (en) | Mullite-anorthite-corundum complex phase micropore heat-barrier material and preparation method thereof | |
| CN105819799A (en) | Heatproof and wear resistant lining material | |
| CN106518105A (en) | Water-resistant moisture-proof refractory brick and preparation method thereof | |
| CN103880389B (en) | A kind of high temperature resistant without asbestos quick-dry type heat insulating sprayed material and using method thereof | |
| CN104140233B (en) | A kind of low iron heat insulating casting material of 1200 DEG C of levels used for industrial furnace and preparation method | |
| CN111592289A (en) | Mesoporous material composite calcium silicate fireproof plate and preparation method thereof | |
| CN104129970A (en) | Heat insulation coating for molten iron jar | |
| CN108002851A (en) | Refractory brick containing mullite and preparation method thereof | |
| CN107954743A (en) | Corrosion-resistant light porous refractory brick and preparation method thereof | |
| CN104308106B (en) | A kind of ladle covering agent | |
| CN108947469A (en) | A method of the compound mine tailings heat-insulating heat-preserving material of silica is prepared from iron tailings | |
| CN104140273B (en) | A kind of low iron heat insulating casting material of 1100 DEG C of levels used for industrial furnace and preparation method | |
| CN106495717A (en) | A kind of environment-friendly type KR agitator castable | |
| JP2008001574A (en) | Inorganic fiber laminated body and method of manufacturing the same | |
| CN117552180B (en) | Low-heat-conduction glass wool heat-insulation felt and preparation method thereof | |
| CN108727060A (en) | Iron tailing sintered light heat-insulation wall material and preparation method | |
| CN103394636B (en) | A kind of disappearance die casting coating and using method thereof | |
| CN117209259B (en) | Aluminum-silicon composite prefabricated member and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |