CN106747503A - A kind of anticorrosive refractory brick and preparation method thereof - Google Patents
A kind of anticorrosive refractory brick and preparation method thereof Download PDFInfo
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- CN106747503A CN106747503A CN201611132688.4A CN201611132688A CN106747503A CN 106747503 A CN106747503 A CN 106747503A CN 201611132688 A CN201611132688 A CN 201611132688A CN 106747503 A CN106747503 A CN 106747503A
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- C—CHEMISTRY; METALLURGY
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
- C04B35/44—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 aluminates
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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
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
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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
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
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- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
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- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
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- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3852—Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
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- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
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- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/444—Halide containing anions, e.g. bromide, iodate, chlorite
- C04B2235/445—Fluoride containing anions, e.g. fluosilicate
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- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
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- C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts
- C04B2235/9692—Acid, alkali or halogen resistance
Abstract
The invention discloses a kind of anticorrosive refractory brick, it is made up of following raw material：5 10 parts of 15 30 parts of Cab-O-sil, 20 40 parts of magnesium aluminate spinel, 5 10 parts of activated alumina, 6 12 parts of di-iron trioxide, 48 parts of Graphene, 13 parts of Fluorspar Powder, 0.2 1 parts of boron nitride, 25 parts of bonding agent and nano magnesia；Its preparation method is：Each raw material by more than proportioning weigh, it is blended, shaping, be made adobe with molding vibrating forming machine, toasted, be then placed in vacuumize process in impregnating autoclave, impregnating agent is added after pressurize, be calcined.Beneficial effects of the present invention are：Refractory brick function admirable of the invention, slag-resistant, alkali metal erosion performance are strong, and resistance to erosion, heat preservation and insulation are excellent, high volume good stability；Preparation method of the present invention is simple, abundant raw material, is adapted to factorial praluction.
Description
Technical field
Strong, the resistance to punching the present invention relates to technical field of refractory materials, more particularly to a kind of slag-resistant, alkali metal erosion performance
Brush, heat preservation and insulation is excellent, high volume good stability refractory brick and preparation method thereof.
Background technology
With the growing tension of the energy, various countries to the development of hot industry energy-saving material, produce and use pay attention to day by day.
Refractory brick is resistance in lightweight due to the characteristic such as refractoriness under load point is high, high volume good stability, long-term use are not shunk
It is widely applied and studies in fiery material system.
Because quick crystal transfer of the silica in heating process produces larger volume expansion, make burning till than it for refractory brick
His refractory material is difficult.The core technology for manufacturing refractory brick is the selection and application of mineralizer, the purpose is to be resistance in order to control
Firebrick in sintering process, because the crystal transfer of silica produces the volumetric expansion that larger stress causes in brick, it is to avoid fire resisting
Brick ftractures when burning till.Require for quartz to be changed into stable high temperature mineral phase tridymite and side as far as possible when refractory brick burns till
Quartz, in order to promote this conversion, generally adds mineralizer during refractory brick is made.Mineralizer is can be anti-with silica
The oxide of liquid phase should be generated, its effect is not significantly reduce the refractoriness of product while quartz transition is accelerated, and can be pressed down
Because of the stress that expansion is produced when brickmaking base burns till, prevent product loose or ftracture.
It is mostly iron oxide and calcium oxide to make the actually used mineralizer of refractory brick at present, and they not only have above-mentioned spy
Point, and can guarantee that refractory brick has good mechanical behavior under high temperature.But, the iron oxide and calcium oxide used in production respectively with
Fine powder form and milk of lime form are added, and the former granularity is not thin enough, disperses not uniform enough in refractory brick；The latter actually adds
Be calcium hydroxide, its lime milk solution easily flocculates, and is difficult dispersion, therefore poor as mineralizer effect.
The content of the invention
It is an object of the invention to not strong enough in order to solve existing refractory brick slag-resistant, alkali metal erosion performance, during making
Granularity is not thin enough, disperses not uniform enough in refractory brick, and its lime milk solution easily flocculates, and is difficult scattered defect, there is provided a kind of
Function admirable, resistance to erosion, heat preservation and insulation are excellent, the anticorrosive refractory brick of high volume good stability.
To achieve these goals, the present invention uses following technical scheme：
A kind of anticorrosive refractory brick, is made up of following raw material：Cab-O-sil 15-30 parts, magnesium aluminate spinel 20-40
Part, activated alumina 5-10 parts, di-iron trioxide 6-12 parts, Graphene 4-8 parts, Fluorspar Powder 1-3 parts, boron nitride 0.2-1 parts, knot
Mixture 2-5 parts and nano magnesia 5-10 parts.
The particle diameter of described Cab-O-sil is 0.5-2 μm.
The Fluorspar Powder is 200-300 mesh.
The bonding agent is marine algae extract, and the preparation method of the bonding agent is as follows：
1) clean：Marine alga raw material is soaked 2-3 hours with 45-50 DEG C of running water, is then cleaned up；
2) crush, be centrifuged：The marine alga for cleaning up, vacuum breaking adds the ethanol of 30 times of marine alga volume molten with fourth diester
Immersion is steeped and is boiled, and ethanol is 1 with the volume ratio of fourth diester:1, it is then centrifuged for separation and removes slag to obtain marine alga clear liquid, centrifuge turns
Speed is 4000~6000rpm, and centrifugation time is 15-20min；
3) nanofiltration：Marine alga clear liquid is diluted with the 5-10 times of pure water of volume, then dialysis concentration, marine alga is carried out with NF membrane
Clear liquid dialysis be concentrated into dilution 0.1-0.2 times of front volume nanofiltration concentrate, the molecular cut off of the NF membrane is 600-
700Da；
4) concentrate drying：Nanofiltration concentrate is further concentrated in vacuo to solid content for 40-60 parts, then dry in spraying
Water content 2-3 parts of powdered marine algae extract is spray-dried to obtain in dry device.
5. the preparation method of anticorrosive refractory brick according to claim 1, it is characterised in that the preparation method
For：Each raw material by more than proportioning weigh, it is blended, shaping, be made adobe with molding vibrating forming machine, adobe is at 550-650 DEG C
Lower baking 20-25 hours, is then put into vacuumize process in impregnating autoclave by the adobe after baking, and vacuum pressure is 0.05-
0.08mpa, pressurize 40-50 minutes, is subsequently adding impregnating agent, continues pressurize 3-5 hours, and the adobe after dipping is in 1200-1285
DEG C roasting, soaking time 75-85 hours.
Beneficial effects of the present invention are：
Refractory brick function admirable of the invention, slag-resistant, alkali metal erosion performance are strong, and resistance to erosion, heat preservation and insulation are excellent
Different, high volume good stability；Refractory brick inner homogeneous disperse, energy acceleration of sintering, and cause that refractory brick has group evenly
Structure is knitted, the intensity and thermal shock resistance of product is improved；The granularity of nano magnesia is tiny, can fill fine pores, reduces
The porosity of product, improves bulk density；Preparation method of the present invention is simple, abundant raw material, is adapted to factorial praluction.
Specific embodiment
Below in conjunction with specific embodiment, the present invention is further explained, not to the limitation of its protection domain.
In the present invention, if not refering in particular to, the raw material for being used is commercially available or commonly used in the art, following implementations
Method in example, unless otherwise instructed, is the conventional method of this area.
Embodiment 1
A kind of anticorrosive refractory brick, is made up of following raw material：15 parts of Cab-O-sil, 20 parts of magnesium aluminate spinel, activity
5 parts of aluminum oxide, 6 parts of di-iron trioxide, 4 parts of Graphene, 1 part of Fluorspar Powder, 0.2 part of boron nitride, 2 parts of bonding agent and nano magnesia
5 parts.
The particle diameter of described Cab-O-sil is 0.5 μm.
The Fluorspar Powder is 200 mesh.
The bonding agent is marine algae extract, and the preparation method of the bonding agent is as follows：
1) clean：Marine alga raw material is soaked 2 hours with 45-50 DEG C of running water, is then cleaned up；
2) crush, be centrifuged：The marine alga for cleaning up, vacuum breaking adds the ethanol of 30 times of marine alga volume molten with fourth diester
Immersion is steeped and is boiled, and ethanol is 1 with the volume ratio of fourth diester:1, it is then centrifuged for separation and removes slag to obtain marine alga clear liquid, centrifuge turns
Speed is 4000~6000rpm, and centrifugation time is 15-20min；
3) nanofiltration：Marine alga clear liquid is diluted with the 5-10 times of pure water of volume, then dialysis concentration, marine alga is carried out with NF membrane
Clear liquid dialysis be concentrated into dilution 0.1-0.2 times of front volume nanofiltration concentrate, the molecular cut off of the NF membrane is 600-
700Da；
4) concentrate drying：Nanofiltration concentrate is further concentrated in vacuo to solid content for 40-60 parts, then dry in spraying
Water content 2-3 parts of powdered marine algae extract is spray-dried to obtain in dry device.
5. the preparation method of anticorrosive refractory brick according to claim 1, it is characterised in that the preparation method
For：Each raw material by more than proportioning weigh, it is blended, shaping, be made adobe with molding vibrating forming machine, adobe is at 550-650 DEG C
Lower baking 20 hours, is then put into vacuumize process in impregnating autoclave by the adobe after baking, and vacuum pressure is 0.05-0.08mpa,
Pressurize 40 minutes, is subsequently adding impregnating agent, continues pressurize 3 hours, and the adobe after dipping is calcined at 1200-1285 DEG C, during insulation
Between 75 hours.
Embodiment 2
A kind of anticorrosive refractory brick, is made up of following raw material：30 parts of Cab-O-sil, 40 parts of magnesium aluminate spinel, activity
10 parts of aluminum oxide, 12 parts of di-iron trioxide, 8 parts of Graphene, 3 parts of Fluorspar Powder, 1 part of boron nitride, 5 parts of bonding agent and nano magnesia
10 parts.
The particle diameter of described Cab-O-sil is 2 μm.
The Fluorspar Powder is 300 mesh.
The bonding agent is marine algae extract, and the preparation method of the bonding agent is as follows：
1) clean：Marine alga raw material is soaked 3 hours with 45-50 DEG C of running water, is then cleaned up；
2) crush, be centrifuged：The marine alga for cleaning up, vacuum breaking adds the ethanol of 30 times of marine alga volume molten with fourth diester
Immersion is steeped and is boiled, and ethanol is 1 with the volume ratio of fourth diester:1, it is then centrifuged for separation and removes slag to obtain marine alga clear liquid, centrifuge turns
Speed is 4000~6000rpm, and centrifugation time is 15-20min；
3) nanofiltration：Marine alga clear liquid is diluted with the 5-10 times of pure water of volume, then dialysis concentration, marine alga is carried out with NF membrane
Clear liquid dialysis be concentrated into dilution 0.1-0.2 times of front volume nanofiltration concentrate, the molecular cut off of the NF membrane is 600-
700Da；
4) concentrate drying：Nanofiltration concentrate is further concentrated in vacuo to solid content for 40-60 parts, then dry in spraying
Water content 2-3 parts of powdered marine algae extract is spray-dried to obtain in dry device.
5. the preparation method of anticorrosive refractory brick according to claim 1, it is characterised in that the preparation method
For：Each raw material by more than proportioning weigh, it is blended, shaping, be made adobe with molding vibrating forming machine, adobe is at 550-650 DEG C
Lower baking 25 hours, is then put into vacuumize process in impregnating autoclave by the adobe after baking, and vacuum pressure is 0.05-0.08mpa,
Pressurize 50 minutes, is subsequently adding impregnating agent, continues pressurize 5 hours, and the adobe after dipping is calcined at 1200-1285 DEG C, during insulation
Between 85 hours.
Embodiments of the invention have been described in detail above, but the content is only presently preferred embodiments of the present invention,
It is not to be regarded as limiting practical range of the invention.All impartial changes made according to the scope of the invention and improvement etc., all should
Still belong within this patent covering scope.
Claims (5)
1. a kind of anticorrosive refractory brick, it is characterised in that be made up of following raw material：Cab-O-sil 15-30 parts, magnalium point crystalline substance
Stone 20-40 parts, activated alumina 5-10 parts, di-iron trioxide 6-12 parts, Graphene 4-8 parts, Fluorspar Powder 1-3 parts, boron nitride
0.2-1 parts, bonding agent 2-5 parts and nano magnesia 5-10 parts.
2. a kind of anticorrosive refractory brick according to claim 1, it is characterised in that the particle diameter of described Cab-O-sil is 0.5-
2μm。
3. a kind of anticorrosive refractory brick according to claim 1, it is characterised in that the Fluorspar Powder is 200-300 mesh.
4. a kind of anticorrosive refractory brick according to claim 1, it is characterised in that the bonding agent is marine algae extract,
The preparation method of the bonding agent is as follows：
1) clean：Marine alga raw material is soaked 2-3 hours with 45-50 DEG C of running water, is then cleaned up；
2) crush, be centrifuged：The marine alga for cleaning up, vacuum breaking, the ethanol and the ester solution of fourth two for adding 30 times of marine alga volume soaks
Steep and boil, ethanol is 1 with the volume ratio of fourth diester:1, it is then centrifuged for separation and removes slag to obtain marine alga clear liquid, the rotating speed of centrifuge is
4000~6000rpm, centrifugation time is 15-20min；
3) nanofiltration：Marine alga clear liquid is diluted with the 5-10 times of pure water of volume, dialysis concentration, marine alga clear liquid are then carried out with NF membrane
Dialysis be concentrated into dilution 0.1-0.2 times of front volume nanofiltration concentrate, the molecular cut off of the NF membrane is 600-
700Da；
4) concentrate drying：Nanofiltration concentrate is further concentrated in vacuo to solid content for 40-60 parts, then in spray dryer
It is middle to be spray-dried to obtain water content 2-3 parts of powdered marine algae extract.
5. the preparation method of anticorrosive refractory brick according to claim 1, it is characterised in that the preparation method is：Respectively
Raw material by more than proportioning weigh, it is blended, shaping, adobe is made of molding vibrating forming machine, adobe is toasted at 550-650 DEG C
20-25 hours, the adobe after baking is then put into vacuumize process in impregnating autoclave, vacuum pressure is 0.05-0.08mpa, protected
Pressure 40-50 minutes, is subsequently adding impregnating agent, continues pressurize 3-5 hours, and the adobe after dipping is in 1200-1285 DEG C of roasting, insulation
Time 75-85 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611132688.4A CN106747503A (en) | 2016-12-09 | 2016-12-09 | A kind of anticorrosive refractory brick and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611132688.4A CN106747503A (en) | 2016-12-09 | 2016-12-09 | A kind of anticorrosive refractory brick and preparation method thereof |
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| CN106747503A true CN106747503A (en) | 2017-05-31 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108069700A (en) * | 2017-11-16 | 2018-05-25 | 湖州南浔凤强木业有限公司 | A kind of corrosion-resistant imitated wood floor board brick and preparation method thereof of corridor along the river |
| CN108191457A (en) * | 2018-03-12 | 2018-06-22 | 合肥铭佑高温技术有限公司 | A kind of anticorrosive refractory brick and preparation method thereof |
| CN110511058A (en) * | 2019-09-29 | 2019-11-29 | 河南科技大学 | Modified refractory material of a kind of graphene and preparation method thereof |
-
2016
- 2016-12-09 CN CN201611132688.4A patent/CN106747503A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108069700A (en) * | 2017-11-16 | 2018-05-25 | 湖州南浔凤强木业有限公司 | A kind of corrosion-resistant imitated wood floor board brick and preparation method thereof of corridor along the river |
| CN108191457A (en) * | 2018-03-12 | 2018-06-22 | 合肥铭佑高温技术有限公司 | A kind of anticorrosive refractory brick and preparation method thereof |
| CN110511058A (en) * | 2019-09-29 | 2019-11-29 | 河南科技大学 | Modified refractory material of a kind of graphene and preparation method thereof |
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Application publication date: 20170531 |