CN107954701A - Corrosion-resistant flint clay refractory brick and preparation method thereof - Google Patents
Corrosion-resistant flint clay refractory brick and preparation method thereof Download PDFInfo
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- CN107954701A CN107954701A CN201610897319.8A CN201610897319A CN107954701A CN 107954701 A CN107954701 A CN 107954701A CN 201610897319 A CN201610897319 A CN 201610897319A CN 107954701 A CN107954701 A CN 107954701A
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- refractory brick
- flint clay
- corrosion
- resistant
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- 239000011449 brick Substances 0.000 title claims abstract description 59
- 239000004927 clay Substances 0.000 title claims abstract description 49
- 230000007797 corrosion Effects 0.000 title claims abstract description 41
- 238000005260 corrosion Methods 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 238000000576 coating method Methods 0.000 claims abstract description 25
- 239000000843 powder Substances 0.000 claims abstract description 25
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000011248 coating agent Substances 0.000 claims abstract description 24
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000011521 glass Substances 0.000 claims abstract description 18
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 18
- 239000010439 graphite Substances 0.000 claims abstract description 18
- 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 abstract description 18
- 239000011159 matrix material Substances 0.000 claims abstract description 17
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000013078 crystal Substances 0.000 claims abstract description 10
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 10
- CEGOLXSVJUTHNZ-UHFFFAOYSA-K aluminium tristearate Chemical compound [Al+3].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CEGOLXSVJUTHNZ-UHFFFAOYSA-K 0.000 claims abstract description 9
- 229940063655 aluminum stearate Drugs 0.000 claims abstract description 9
- 239000010881 fly ash Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 7
- 238000001354 calcination Methods 0.000 claims description 6
- -1 polysiloxanes Polymers 0.000 claims description 6
- 239000002689 soil Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 2
- 239000010883 coal ash Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 7
- 238000009413 insulation Methods 0.000 description 6
- 239000011819 refractory material Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 229910052906 cristobalite Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000005995 Aluminium silicate Substances 0.000 description 3
- 235000012211 aluminium silicate Nutrition 0.000 description 3
- 229910052681 coesite Inorganic materials 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 229910052682 stishovite Inorganic materials 0.000 description 3
- 229910052905 tridymite Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 229910000323 aluminium silicate Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 230000000035 biogenic effect Effects 0.000 description 1
- 238000005524 ceramic coating Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000003837 high-temperature calcination Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 230000015654 memory Effects 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 230000001007 puffing effect Effects 0.000 description 1
- 239000011214 refractory ceramic Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 235000019795 sodium metasilicate Nutrition 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
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Abstract
The present invention provides a kind of corrosion-resistant flint clay refractory brick, including refractory brick matrix and the high-temperaure coating for being sprayed on the refractory brick matrix surface；Wherein, the raw material of the refractory brick matrix includes：Flint clay bulky grain 25%~31%, hollow glass micropearl 8%~17%, Metakaolin superfine powder 20%~25%, titanium dioxide 3%~8%, expanded graphite 0.5%~1.5%, flyash 5%~10%, diatomite 5%~10%, aluminum stearate 3%~6%, surplus are pulp-water；The raw material of the high-temperaure coating includes：Polysiloxanes 40%~45%, crystal whisker of hexa potassium titanate 1%~3%, Mo powder 3%~10%, surplus are ethanol.The present invention also provides a kind of preparation method of corrosion-resistant flint clay refractory brick, this method step letter nitrogen, be easy to automated production.
Description
Technical field
The invention belongs to technical field of refractory materials, specifically, relate to a kind of corrosion-resistant flint clay refractory brick and its
Preparation method.
Background technology
Refractory material is due to the corrosion resistance good to high-temperature medium, and the performance with insulation, it is metallurgical,
The high temperature industry such as petrochemical industry, glass is widely used.As energy-saving attention degree is continuously improved in China, there is good protect
The lightweight refracrory of warm heat insulation has obtained more research and developments.Unshape refractory due to construction just
Profit, production cost are low, and the advantage such as overall structure is good of liner body, and receive special attention, wherein being poured especially with fire resisting
Material feeding is applied the most extensive.
Usually used castable refractory is mainly Al2O3-SiO2Material, but this kind of refractory material is in industries such as petrochemical industry
In use, due to the influence of residing reducing atmosphere environment, the damage of refractory material can be caused to aggravate, so that the use of material
Service life reduction.Further, since pore size is larger in traditional refractory aggregate, aperture is in grade more, so when the material
In hot environment in use, since by the aggravation that gas radiation heat transfer is conducted heat with convection current in stomata, refractory material can be made
Thermal conductivity factor raises, and thereby reduces the heat insulation and preservation effect of refractory material, increases the loss of thermal energy, cause energy cost
Rise.
In order to solve the problems, such as present on, people are seeking a kind of preferable technical solution always.
The content of the invention
The purpose of the present invention is in view of the deficiencies of the prior art, so that providing a kind of has higher thermal shock resistance and preferably
Heat insulation and preservation effect corrosion-resistant flint clay refractory brick.
To achieve these goals, the technical solution adopted in the present invention is a kind of corrosion-resistant flint clay refractory brick, it is wrapped
Include refractory brick matrix and be sprayed on the high-temperaure coating of the refractory brick matrix surface；Wherein, the preparation of the refractory brick matrix
Raw material includes：Flint clay bulky grain 25%~31%, hollow glass micropearl
8%~17%, Metakaolin superfine powder 20%~25%, titanium dioxide 3%~8%, expanded graphite 0.5%~1.5%, flyash 5%~
10%th, diatomite 5%~10%, aluminum stearate 3%~6%, surplus are pulp-water；The preparing raw material of the high-temperaure coating includes：It is poly-
Siloxanes 40%~45%, crystal whisker of hexa potassium titanate 1%~3%, Mo powder 3%~10%, surplus are ethanol.
Based on above-mentioned, the flint clay bulky grain particle diameter is the mm of 1 mm~3, the hollow glass micropearl particle diameter is 0.5
The mm of mm~1.
Based on above-mentioned, the Metakaolin superfine powder granularity is less than 0.043mm, the diatom soil granularity is less than 0.074mm.
The present invention also provides a kind of preparation method of corrosion-resistant flint clay refractory brick, comprise the following steps：
According to above-mentioned mass percent raw material calculate, by flint clay bulky grain, hollow glass micropearl, Metakaolin superfine powder,
Titanium dioxide, expanded graphite, flyash, diatomite, aluminum stearate and pulp-water carry out mixed grind and prefabricated pug are made, by the mixed grind
Pug is pressed into adobe and drying；
High-temperature resistant coating is made in polysiloxanes, crystal whisker of hexa potassium titanate, Mo powder and ethanol, then by the dried adobe table
Face sprays the high-temperature resistant coating, and spraying adobe is made, and the spraying adobe is made described corrosion-resistant burnt precious after drying, calcining
Stone refractory brick.
Based on above-mentioned, the mixed grind pug is pressed into adobe, and by the adobe spontaneously dry 24 it is small when, then put
In in dry kiln, under 100 DEG C~200 DEG C of temperature conditionss it is dry 24~48 it is small when；Then the dried adobe is soaked
Stain in the high-temperature resistant coating be made spraying adobe, and it is carried out at a temperature of 1100 DEG C~1200 DEG C calcining 10 it is small when
~12 it is small when so that be made the corrosion-resistant flint clay refractory brick.
The performance effect of each component is as follows in corrosion-resistant flint clay refractory brick raw material provided by the present invention：
Flint clay bulky grain：Also known as level-one hard paste clinker, is a variety of mixtures containing aluminosilicate, and main chemical compositions are
Al2O3And SiO2, with a small amount of Fe2O3With micro Na2O、K2O, has volume stability, intensity big and inhales after high-temperature calcination
The characteristics such as water rate is small, its refractoriness is up to more than 1750 DEG C, so that the refractory brick prepared has higher thermal shock resistance
With preferable heat resistance.
Hollow glass micropearl：Hollow glass micropearl is developed in recent years a kind of widely used, excellent performance new
Section bar material, the main component of the product are borosilicates, the hollow ball that granularity is 10-250 microns, wall thickness is 1-2 microns.Should
Product has the advantages that the high and good chemical stability of light, low heat conduction, intensity, also has insulation, self-lubricating, sound insulation, no
The excellent properties such as water suction, fire resisting, corrosion-resistant, radiation protection, nontoxic.Hollow glass micropearl is made of inorganic material, by chemistry
Component has：Silica, aluminium oxide, zirconium oxide, magnesia, sodium metasilicate etc..Ten to hundreds of microns of its particle diameter, is full of to be internal
CO2The closing microsphere of gas.Hollow glass micropearl has obvious mitigation weight and sound-insulating effect, has product
Good crack resistance energy and cycling processability, are widely used in fields such as insulating moulding coatings.
Metakaolin superfine powder：Metakaolin is the anhydrous aluminium silicate that kaolin is dehydrated formation at moderate temperatures.It is higher
It is irregular that atom, which puts in order, in the soil of ridge, and the steady state of thermodynamics Jie is presented, has gelling under appropriate excitation.Work as temperature
Start crystallization generation mullite and cristobalite when rising to 925 DEG C.Crystal is mainly made of oxygen-octahedron and hydrogen-oxygen octahedron, its
Middle oxygen-octahedron links the clathrum to form Hexagonal array in a manner of sharing apex angle along two-dimensional directional.Kaolin has strong
Acid resistance, good electrical insulating property and higher fire resistance, refractoriness is related with kaolinic chemical composition, pure height
The refractoriness of ridge soil is generally at 1700 DEG C or so, and when hydromica, feldspar content are more, when potassium, sodium, iron content are high, refractoriness reduces,
The refractoriness of metakaolin is minimum to be not less than 1500 DEG C.
Titanium dioxide：Main component is titanium dioxide, and chemical property is extremely stablized, and is a kind of amphoteric oxide of slant acidity,
It is widely used in all kinds of body structure surface coating, paper coating and fillers, plastics and elasticity.It is mainly as sintering aid herein,
Reduce the sintering temperature of refractory brick.
Diatomite：Diatomite is a kind of siliceous rock, is a kind of biogenic siliceous sedimentary rock, it is mainly by ancient times silicon
The remains of algae are formed.Its chemical composition is with SiO2Based on.Industrially it is often used as thermal insulation material.Simultaneously because there is hole
The features such as degree is big, absorbability is strong, chemical property is stable, wear-resisting, heat-resisting, can provide excellent surface property, increase-volume, increases for coating
Thick and raising adhesive force.
Expanded graphite：Expanded graphite is the one kind obtained by natural graphite scale through intercalation, washing, drying, high temperature puffing
Loose porous vermiform material.Its except possess the excellent performances such as native graphite cold-hot in itself, corrosion-resistant, self-lubricating with
Outside, also with the unexistent softness of native graphite, compression resilience, adsorptivity, ecological environment harmony, biocompatibility, resistance to
The characteristics such as radiativity.Expanded graphite meet high temperature can 150 ~ 300 times of moment volumetric expansion, vermiform is changed into from sheet, so that structure
Loosely, porous and bend, expanded surface area, surface energy improve, the power enhancing of absorption crystalline flake graphite, can be voluntarily between quasiflake graphite
It is chimeric, so add its flexibility, resilience and plasticity.
Polysiloxanes under the high temperature conditions can cracking reaction generation Mo with Mo powder2C、Mo3New phase formations such as Si and doped with six
The amorphous Si OC ceramic coatings of potassium titanate crystal whisker, improve the surface resistance to corrosion of refractory brick, the volumetric expansion energy of generation
Effectively reduce the porosity of ceramic material.
The present invention has prominent substantive distinguishing features and significant progress compared with the prior art, and specifically, the present invention is first
First by different grain size and the flint clay bulky grain of length, hollow glass micropearl, Metakaolin superfine powder, titanium dioxide, expanded graphite,
Flyash, diatomite, aluminum stearate are mixed with pulp-water so that each site component proportioning collocation one of adobe of preparation
Cause, ensure that the uniformity of each position performance of corrosion-resistant flint clay refractory brick of calcining gained, while contain a large amount of ribs in raw material
The granularity material that cornicult goes out, increases critical granularity, for corrosion-resistant flint clay refractory brick provide firm skeleton structure make its
Deformation is not likely to produce during use.The present invention sprays the adobe by crystal whisker of hexa potassium titanate, polysiloxanes, Mo powder and ethanol
In the high-temperature resistant coating being mixed with so that the adobe surface after firing forms one layer of refractory ceramics layer, improves product
High temperature resistant and surface erosion resistance energy.
Meanwhile the present invention makes full use of expanded graphite to be mixed with above-mentioned raw materials so that material internal exists in more time memories
A large amount of Minute pores, and the Minute pores will not with the progress of sintering process agglomeration, finally formed in the product micro-
Meter level and equally distributed stomata so that the corrosion-resistant flint clay refractory brick of preparation has high RUL, low creep, high-heat resistance shock resistant
Energy.
Embodiment
Below by embodiment, technical scheme is described in further detail.
Embodiment 1
The present embodiment provides a kind of corrosion-resistant flint clay refractory brick, including refractory brick matrix and it is sprayed on the refractory brick matrix table
The high-temperaure coating in face；Wherein, the raw material of the refractory brick matrix includes：Flint clay bulky grain 25%, hollow glass micropearl 8%,
Metakaolin superfine powder 20%, titanium dioxide 3%, expanded graphite 0.5%, flyash 10%, diatomite 5.5%, aluminum stearate 6%, paper pulp
Water 22%.The raw material of the high-temperaure coating includes：：Polysiloxanes 45%, crystal whisker of hexa potassium titanate 3%, Mo powder 10%, ethanol 42%.
Wherein, the flint clay bulky grain particle diameter be the mm of 1 mm~3, the hollow glass micropearl particle diameter be 0.5 mm~1
Mm, the Metakaolin superfine powder granularity are less than 0.043mm, the diatom soil granularity is less than 0.074mm.Chemistry in each raw material
Component is as shown in table 1.
Table 1, each raw material main chemical compositions
The present embodiment also provides a kind of preparation method of the corrosion-resistant flint clay refractory brick, and specific preparation process includes：
（1）Calculated according to the raw material of above-mentioned mass percent, flint clay bulky grain, hollow glass micropearl, metakaolin is ultra-fine
Powder, titanium dioxide, expanded graphite, flyash, diatomite and pulp-water carry out mixed grind and prefabricated pug are made；By polysiloxanes Mo powder with
High-temperature resistant coating is made in ethanol；
（2）The mixed grind pug is pressed into by adobe using brickmaking machine of the pressure tonnage more than 315 tons, and by the adobe certainly
When so drying 24 is small, it is subsequently placed in dry kiln, when drying 24 is small under 200 DEG C of temperature conditionss；Then by dried brick
Base be immersed in the high-temperature resistant coating be made spraying adobe, and it is carried out at a temperature of 1100 DEG C calcining 12 it is small when, from
And the corrosion-resistant flint clay refractory brick is made.After testing, the corrosion-resistant flint clay refractory brick density made from the present embodiment
For 2.2g/cm3。
Embodiment 2
The present embodiment provides a kind of corrosion-resistant flint clay refractory brick, it includes refractory brick matrix and is sprayed on the refractory brick matrix
The high-temperaure coating on surface；Wherein, the refractory brick matrix includes the material of following mass percents：Flint clay bulky grain 30%,
Hollow glass micropearl 8%, Metakaolin superfine powder 22%, titanium dioxide 8%, expanded graphite 1.5%, flyash 8.5%, diatomite 10%,
Aluminum stearate 6%, pulp-water 6%.The raw material of the high-temperaure coating includes：Polysiloxanes 40%, Mo powder 10%, crystal whisker of hexa potassium titanate
3%th, ethanol 47%.
The preparation method of corrosion-resistant flint clay refractory brick described in the present embodiment is identical with the preparation method in embodiment 1.
After testing, the corrosion-resistant flint clay refractory brick density is 2.3g/cm made from the present embodiment3。
Embodiment 3
The present embodiment provides a kind of corrosion-resistant flint clay refractory brick, it includes refractory brick matrix and is sprayed on the refractory brick matrix
The high-temperaure coating on surface；Wherein, the raw material of the refractory brick matrix includes：Flint clay bulky grain 25.5%, hollow glass micropearl
8%th, Metakaolin superfine powder 25%, titanium dioxide 3%, expanded graphite 1.5%, flyash 5%, diatomite 5%, aluminum stearate 3%, paper pulp
Water 24%；The raw material of the high-temperaure coating, which is made, to be included：Polysiloxanes 45%, Mo powder 7%, crystal whisker of hexa potassium titanate 1%, ethanol 47%.
The preparation method of corrosion-resistant flint clay refractory brick described in the present embodiment is identical with the preparation method in embodiment 1.
After testing, the corrosion-resistant flint clay refractory brick density is 1.9g/cm made from the present embodiment3。
Corrosion-resistant flint clay refractory brick performance detection
Bulk density, average pore size in the corrosion-resistant flint clay refractory brick prepared respectively to embodiment 1~3, refractoriness, room temperature
Compressive resistance and 1350 DEG C of high temperature break resistant intensity performances are detected, and testing result is as shown in table 2.
Table 2, corrosion-resistant flint clay refractory brick performance detection
As can be seen from the above table：The fire resisting softening point for the corrosion-resistant flint clay refractory brick that embodiment 1~3 provides is more than 1680
DEG C, cold crushing strength be more than 40MPa, average pore size between 8.5 microns~10.0 microns, bulk density is between 2.0g/
cm3~2.4g/cm3Between, therefore the corrosion-resistant flint clay refractory brick property indices meet GB/T3994-2013 regulations
Index, there are equally distributed micron order stomata inside the corrosion-resistant flint clay refractory brick, while the product has load
The advantages of softening temperature is high, the performance of highly heatproof and shockproof.
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, those of ordinary skills in the art should understand that：Still
It can modify to the embodiment of the present invention or equivalent substitution is carried out to some technical characteristics；Without departing from this hair
The spirit of bright technical solution, it should all cover among the claimed technical solution scope of the present invention.
Claims (5)
1. a kind of corrosion-resistant flint clay refractory brick, it is characterised in that it includes refractory brick matrix and is sprayed on the refractory brick base
The high-temperaure coating in body surface face；Wherein, the preparing raw material of the refractory brick matrix includes：Flint clay bulky grain 25%~31%, sky
Heart glass microballoon 8%~17%, Metakaolin superfine powder 20%~25%, titanium dioxide 3%~8%, expanded graphite 0.5%~1.5%, fine coal
Ash 5%~10%, diatomite 5%~10%, aluminum stearate 3%~6%, surplus are pulp-water；The preparing raw material of the high-temperaure coating
Including：Polysiloxanes 40%~45%, crystal whisker of hexa potassium titanate 1%~3%, Mo powder 3%~10%, surplus are ethanol.
2. corrosion-resistant flint clay refractory brick according to claim 1, it is characterised in that the flint clay bulky grain particle diameter is
The mm of 1 mm~3, the hollow glass micropearl particle diameter are the mm of 0.5 mm~1.
3. corrosion-resistant flint clay refractory brick according to claim 1 or 2, it is characterised in that the Metakaolin superfine powder
Granularity is less than 0.043mm, the diatom soil granularity is less than 0.074mm.
4. a kind of preparation method of corrosion-resistant flint clay refractory brick, comprises the following steps：
Calculated according to the raw material of any one of claims 1 to 3 mass percent, flint clay bulky grain, hollow glass is micro-
Pearl, Metakaolin superfine powder, titanium dioxide, expanded graphite, flyash, diatomite, aluminum stearate and pulp-water carry out mixed grind and are made
Prefabricated pug, adobe and drying are pressed into by the mixed grind pug；
High-temperature resistant coating is made in polysiloxanes, crystal whisker of hexa potassium titanate, Mo powder and ethanol, then by the dried adobe table
Face sprays the high-temperature resistant coating, and spraying adobe is made, and the spraying adobe is made described corrosion-resistant burnt precious after drying, calcining
Stone refractory brick.
5. the preparation method of corrosion-resistant flint clay refractory brick according to claim 4, it is characterised in that by the mixed grind mud
Material is pressed into adobe, and the adobe is placed in dry kiln when natural drying 24 is small, in 100 DEG C~200 DEG C of temperature
Under the conditions of it is dry 24 it is small when~48 it is small when；Then the dried adobe is immersed in the high-temperature resistant coating and spraying is made
Adobe, and it is carried out at a temperature of 1100 DEG C~1200 DEG C calcining 10 it is small when~12 it is small when so that be made it is described corrosion-resistant
Flint clay refractory brick.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111777423A (en) * | 2020-06-12 | 2020-10-16 | 浙江琰大新材料有限公司 | Silicon oxide pouring refractory brick |
| CN117902909A (en) * | 2024-03-19 | 2024-04-19 | 阳城县圣利安建材有限公司 | Flint clay brick and manufacturing method |
-
2016
- 2016-10-14 CN CN201610897319.8A patent/CN107954701A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111777423A (en) * | 2020-06-12 | 2020-10-16 | 浙江琰大新材料有限公司 | Silicon oxide pouring refractory brick |
| CN117902909A (en) * | 2024-03-19 | 2024-04-19 | 阳城县圣利安建材有限公司 | Flint clay brick and manufacturing method |
| CN117902909B (en) * | 2024-03-19 | 2024-06-11 | 阳城县圣利安建材有限公司 | Flint clay brick and manufacturing method |
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