CN109232016A - A kind of micro- stomata carbon free precast block of refining ladle working lining - Google Patents
A kind of micro- stomata carbon free precast block of refining ladle working lining Download PDFInfo
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- CN109232016A CN109232016A CN201811082245.8A CN201811082245A CN109232016A CN 109232016 A CN109232016 A CN 109232016A CN 201811082245 A CN201811082245 A CN 201811082245A CN 109232016 A CN109232016 A CN 109232016A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C04B38/063—Preparing or treating the raw materials individually or as batches
- C04B38/0635—Compounding ingredients
- C04B38/0645—Burnable, meltable, sublimable materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- 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
- C04B35/10—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
- C04B35/101—Refractories from grain sized mixtures
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- 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
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
- C04B2235/428—Silicon
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/52—Constituents or additives characterised by their shapes
- C04B2235/5208—Fibers
- C04B2235/5212—Organic
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- 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
- C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- 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
- C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
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- Structural Engineering (AREA)
- Organic Chemistry (AREA)
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- Compositions Of Oxide Ceramics (AREA)
Abstract
A kind of micro- stomata carbon free precast block of refining ladle working lining, it is characterized in that, it includes prefabricated section, the raw material of prefabricated section includes that plate diamond spar particle, electro-corundum fine powder, Reactive alumina, silicon powder, novel built grind material, dispersant with high efficiency and organic fiber altogether, the parameter of organic fiber is 3.8~4.2mm of length, 5~8um of diameter, 225~235 DEG C of fusing point, prefabricated section uses high-temperature baking to obtain micro-pore structure in the fabrication process, and bad stomata is discharged using frequency conversion type mode of vibration during molding in prefabricated section；The prefabricated section can introduce organic fiber in prefabricated section, so that dispersion is more evenly, gas cell distribution is more reasonable, and prefabricated section thermal coefficient is effectively reduced, and greatly improves the thermal shock resistance of prefabricated section, while not reducing its erosion performance resistant to high temperatures again.
Description
Technical field
The present invention relates to the prefabricated section brick technical field of ladle, a kind of refining ladle working lining is in particular related to micro-
Stomata carbon free precast block.
Background technique
Ladle is indispensable elevated temperature vessel in STEELMAKING PRODUCTION, it plays access molten steel, carries out double refining to molten steel
Effect.With the increase to the variety steels demand such as mild steel, ultra-low-carbon steel, while requirement of the continuous casting to liquid steel temperature and secondary
Refining rises than constantly, and not requiring nothing more than ladle working lining has good erosion-resisting characteristics and do not cause secondary pollution to molten steel, and
And there is excellent thermal insulation property to ladle.
Domestic large and medium-sized refining ladle working lining mostly uses greatly aluminium-magnesia carbon brick and common ladle prefabricated section brick at present.Due to aluminium
Magnesia carbon brick phosphorus content is high, has carburetion to molten steel, is unfavorable for the smelting of the variety steels such as mild steel, ultra-low-carbon steel, while magnalium
Carbon brick high volume stability is poor, is easy to peel off chip off-falling in use, thus erosion-resisting characteristics is also poor, causes frequently to unpack, build
Packet；Common ladle prefabricated section brick, most domestic ladle prefabricated section brick is all made of ρ-aluminium oxide without cement combination at present,
But because ρ-aluminium oxide have unstability, it is very sensitive to temperature change, stir pug setting time duration when it is short, cause product
Difficult forming and gas cell distribution are uneven, and thermal coefficient is higher, will lead to that steel shell temperature is excessively high, become so as to cause the creep of steel shell
Shape and cracking cause its anti-thermal shock and erosion-resisting characteristics bad, which cannot improve simultaneously, more seriously, also
It will lead to that molten steel temperature drop rate is larger, be unfavorable for the smooth implementation of constant temperature constant speed casting technique.
Summary of the invention
The purpose of the present invention is to provide a kind of micro- stomata carbon free precast blocks of refining ladle working lining, can be prefabricated
Organic fiber is introduced in block, so that dispersion is more evenly, gas cell distribution is more reasonable, and prefabricated section thermal coefficient is effectively reduced, mentions significantly
The thermal shock resistance of high prefabricated section, while not reducing its erosion performance resistant to high temperatures again.
The embodiment of the present invention is achieved in that
The micro- stomata carbon free precast block of a kind of refining ladle working lining, which is characterized in that it includes prefabricated section, prefabricated section
Raw material includes that plate diamond spar particle, electro-corundum fine powder, Reactive alumina, silicon powder, novel built grind material, efficiently altogether
Dispersing agent and organic fiber, the parameter of organic fiber are 3.8~4.2mm of length, 5~8um of diameter, 225~235 DEG C of fusing point, in advance
Clamp dog uses high-temperature baking to obtain micro-pore structure in the fabrication process, and prefabricated section is vibrated during molding using frequency conversion type
Bad stomata is discharged in mode.
In preferred embodiments of the present invention, in 5~8um, the porosity is controlled 18~22% for above-mentioned micro- stomata control.
In preferred embodiments of the present invention, the frequency of above-mentioned frequency conversion type vibration is 35~40 hertz, is vibrated to no atmosphere
Bubble generates, and the diameter of air pocket is greater than 1mm.
In preferred embodiments of the present invention, the control of the temperature of above-mentioned high-temperature baking at 35~40 DEG C, baking time >=
72h。
In preferred embodiments of the present invention, it is silica and magnesia that above-mentioned novel built grinds material altogether.
In preferred embodiments of the present invention, it further includes boric acid that above-mentioned novel built grinds material altogether, and boric acid is pre- for adjusting
The molding time of clamp dog.
In preferred embodiments of the present invention, above-mentioned organic fiber is under the action of silica and magnesia, in prefabricated section
It is inside uniformly dispersed and forms uniform micro- stomata.
In preferred embodiments of the present invention, the weight ratio of above-mentioned raw materials be respectively as follows: plate diamond spar particle 50~60%,
Electro-corundum fine powder 25~35%, Reactive alumina 6~8%, silicon powder 0.25~0.35%, novel built grind material altogether
Material 6~8% and organic fiber 0.15~0.25%.
In preferred embodiments of the present invention, above-mentioned organic fiber is rotated by blender to be dispersed, and blender is using reverse
Rotation disperses organic fiber.
In preferred embodiments of the present invention, the manufacturing process of above-mentioned prefabricated section includes that coarse granule mixing and fine grained are mixed
It closes, coarse granule is the raw material that partial size is greater than 1mm, and fine grained is the raw material that partial size is less than or equal to 1mm.
The beneficial effects of the present invention are:
The present invention introduces a kind of the prefabricated of the carbon-free type of micro- stomata by the way that organic fiber is added in the raw materials for production of prefabricated section
Block obtains micro-pore structure using high-temperature baking, and prefabricated section is discharged during molding using frequency conversion type mode of vibration bad
Stomata；Organic fiber can be introduced in prefabricated section, so that dispersion is more evenly, gas cell distribution is more reasonable, and prefabricated section is effectively reduced
Thermal coefficient greatly improves the thermal shock resistance of prefabricated section, while not reducing its erosion performance resistant to high temperatures again.
Specific embodiment
First embodiment
The present embodiment provides a kind of micro- stomata carbon free precast blocks of refining ladle working lining comprising prefabricated section, prefabricated section
Raw material include that plate diamond spar particle, electro-corundum fine powder, Reactive alumina, silicon powder, novel built grind material, height altogether
Imitate dispersing agent and organic fiber, above raw material ratio by weight is mixed, and prefabricated section uses high temperature to dry in the fabrication process
Roasting to obtain micro-pore structure, bad stomata is discharged using frequency conversion type mode of vibration during molding in prefabricated section.
The production procedure of the micro- stomata carbon free precast block of the refining ladle working lining are as follows: preliminary hearing is carried out to material before ingredient,
After material and its granular size meet the requirements, carries out coarse fodder and prepare ingredient and fine powder pre-mixing step, bonding agent is added after mixing
Compounding is ground altogether, and material is entered mold assembling procedure later, then carries out material mixing process to pug, then carry out vibration moulding process,
Prefabricated section is subjected to demoulding, roasting procedure after molding, finally carries out prefabricated section to be packed and stored process.
Manufacture refining ladle working lining micro- stomata carbon free precast block the step of include:
(1) it first requires to weigh the fine particle materials that 1mm or less is met the requirements of the standard according to the ratio, be pre-mixed, wherein having
Machine fiber is without premixing.
(2) it according to blender capacity, requires to prepare 1mm or more coarse particulate material according to the ratio, then weigh corresponding
The premixing fines of ratio, coarse fodder and fines separate.
(3) it stirs, first coarse particulate material is poured into blender, then pour into fine particle materials, be added in whipping process
Organic fiber is in pug shape after stirring.
(4) satisfactory pug is placed in charging tray, product mold is hung to shaking platform, opens magnechuck, it will
Mold is firmly adsorbed on shaking platform, and pug is added in mold by starting vibrating motor.It is turned in vibration processes according to pug
Expect that situation adjusts vibration frequency, avoids the generation of bad stomata.
(5) product vibrated is packed into kiln car, and is pushed into curing room and is conserved, regulate curing temperature maintenance one
The section time.
(6) it demoulds and toasts, after meeting the product stripping that demoulding requires, be packed into dedicated kiln car, be then pushed into tunnel oven
It is toasted.
(7) examine qualified product that can be packed and stored as required after toasting.
The weight ratio of raw material is respectively as follows: plate diamond spar particle 50~60%, electro-corundum fine powder 25~35%, active oxidation
Aluminium micro mist 6~8%, silicon powder 0.25~0.35%, novel built grind material 6~8% and organic fiber 0.15~0.25% altogether.
It is mixed in the embodiment in the ratio in following table 1:
The specification and quantity of 1 raw material of table
| Serial number | Title material | Specification (mm) | Quantity (kg) |
| 1 | Plate diamond spar | 15-10 | 80 |
| 2 | Plate diamond spar | 5-10 | 120 |
| 3 | Plate diamond spar | 5-3 | 170 |
| 4 | Plate diamond spar | 3-1 | 160 |
| 5 | Fused white corundum | 1-0 | 170 |
| 6 | Fused white corundum | ≤0.074 | 157 |
| 7 | α-Al2O3 | Kaifeng | 70 |
| 8 | Novel built grinds material altogether | ≤1 | 70 |
| 9 | Silicon powder | ≤1 | 3 |
| It is additional | Organic fiber | 4.2-3.8 | 2 |
In the production process of prefabricated section, the use of raw material does not introduce carbon, and prefabricated section not will lead to steel in use
Water carburetting, thus the use of the variety steels such as mild steel preferably, ultra-low-carbon steel；Secondly appropriate organic fiber is added in formula
(4 ㎜ of length, deviation ± 0.2 ㎜, 5-8um of diameter, 230 ± 5 DEG C of fusing point) obtains reasonable micro- stomata knot after high-temperature baking
Structure, reasonable micro-pore structure are improving the porosity, and wherein stomata control is controlled in 5~8um, the porosity in 18~22% (gas
Porosity is also known as voidage, the porosity of object or a kind of measurement of compactness extent, with pore volume in object of the total volume hundred
Fraction representation), while reducing prefabricated section thermal coefficient, improves the thermal shock resistance of product and do not reduce its and resistant to high temperatures invade
Corrosion energy.
Formula introduces magnesium silicon compounding and grinds bonding agent altogether, in formula not in such a way that ρ-aluminium oxide combines, but passes through
It introduces a kind of novel built and grinds material altogether as bonding agent, bulk composition is silica and magnesia, and novel built grinds material altogether
Material further includes boric acid, and boric acid is used to adjust the molding time of prefabricated section, adds appropriate boric acid, obtain good workability,
Adjustment workability can be imitated according to temperature conditions, mixing time and molding time are adjusted, when pug has adequately stirring, vibration
Between, make organic fiber dispersion more evenly, gas cell distribution is more reasonable.
To guarantee the uniformity dispersed in whipping process of organic fiber, in the production process of prefabricated section, to blender
It is transformed, makes external cylinder and internal stirring structure that can carry out counter-rotating movement, to enhance the dispersion of organic fiber
Effect, more evenly, air hole structure is more reasonable for the micro- stomata dispersion obtained after toasting prefabricated section.We are in forming process simultaneously
Bad stomata can sufficiently be excluded, to further be promoted pre- by adjusting vibration frequency using variable-frequency vibration moulding mode
The erosion-resisting characteristics and thermal shock performance of clamp dog；Temperature is referred to as the lifeline made steel, and is further increasing large and medium-sized refining ladle
Carbon content in service life and reduction molten steel, while sufficiently meeting Clean Steel Smelting and variety steel, by adjusting prefabricated section
Micro- stomata mechanism and distribution improve anti-thermal shock and erosion-resisting characteristics, and obtain lower thermal coefficient, to substantially reduce steel
Water temperature drop rate, the temperature control of high-temperature baking is at 35~40 DEG C, baking time >=72h；Using variable with magnechuck
The vibratory equipment of frequency forms, and the frequency of frequency conversion type vibration is 35~40 hertz, and pug can obtain good mobile performance, be vibrated to
No air pocket generates, and the diameter of air pocket is greater than 1mm, and pug is not easy to be layered at this time, and the bad stomata of generation is few, product thermal shock
Stability is greatly improved.
This technology invention product is made steel in wine steel two and is promoted the use of, and specific effect is as follows:
2 wine steel of table, two steel mill Contrast on effect
Second embodiment
The present embodiment provides a kind of micro- stomata carbon free precast blocks of refining ladle working lining comprising prefabricated section, prefabricated section
Raw material include that plate diamond spar particle, electro-corundum fine powder, Reactive alumina, silicon powder, novel built grind material, height altogether
Imitate dispersing agent and organic fiber, above raw material ratio by weight is mixed, and prefabricated section uses high temperature to dry in the fabrication process
Roasting to obtain micro-pore structure, bad stomata is discharged using frequency conversion type mode of vibration during molding in prefabricated section.
The prefabricated section production procedure of the embodiment is identical with the step of manufacturing prefabricated section, the difference is that raw material
The effect for using and obtaining.
The weight ratio of raw material is respectively as follows: plate diamond spar particle 50~60%, electro-corundum fine powder 25~35%, active oxidation
Aluminium micro mist 6~8%, silicon powder 0.25~0.35%, novel built grind material 6~8% and organic fiber 0.15~0.25% altogether.
It is mixed in the embodiment in the ratio in following table 1:
The specification and quantity of 3 raw material of table
In the production process of prefabricated section, the use of raw material does not introduce carbon, and prefabricated section not will lead to steel in use
Water carburetting, thus the use of the variety steels such as mild steel preferably, ultra-low-carbon steel；Secondly appropriate organic fiber is added in formula
(4 ㎜ of length, deviation ± 0.2 ㎜, 5-8um of diameter, 230 ± 5 DEG C of fusing point) obtains reasonable micro- stomata knot after high-temperature baking
Structure, reasonable micro-pore structure are improving the porosity, and wherein stomata control is controlled in 6~8um, the porosity in 20% or so (gas
Porosity is also known as voidage, the porosity of object or a kind of measurement of compactness extent, with pore volume in object of the total volume hundred
Fraction representation), while reducing prefabricated section thermal coefficient, improves the thermal shock resistance of product and do not reduce its and resistant to high temperatures invade
Corrosion energy.
Formula introduces magnesium silicon compounding and grinds bonding agent altogether, and bulk composition is silica and magnesia, and novel built grinds material altogether
Material further includes boric acid, and boric acid is used to adjust the molding time of prefabricated section, and adjustment workability can be imitated according to temperature conditions, and adjusting is stirred
It mixes time and molding time, pug has adequately stirring, time of vibration, makes organic fiber dispersion more evenly, gas cell distribution is more closed
Reason；We use variable-frequency vibration moulding mode in forming process simultaneously, by adjusting vibration frequency, can sufficiently exclude not
Good stomata, to further promote the erosion-resisting characteristics and thermal shock performance of prefabricated section；The temperature of high-temperature baking is controlled 35~40
DEG C, baking time >=72h；It is formed using the variable-frequency vibratory equipment with magnechuck, the frequency of frequency conversion type vibration is 35
~40 hertz, pug can obtain good mobile performance, be vibrated to no air pocket and generate, and the diameter of air pocket is greater than 1mm, and this
When pug be not easy to be layered, the bad stomata of generation is few, and product thermal shock resistance is greatly improved.
This technology invention product is made steel in wine steel two and is promoted the use of, and specific effect is as follows:
4 wine steel of table, two steel mill Contrast on effect
The advantages of present example are as follows:
(1) not carbon containing in product formula, because secondary pollution will not be caused to molten steel without leading to molten steel recarburization；
(2) product formula introduces organic fiber, and toasting prefabricated section obtained has uniform micro-pore structure, and divides
Cloth is uniform, and thermal coefficient is low, reduces the deformation of ladle involucrum, reduces molten steel temperature drop in ladle, has preferable erosion-resisting characteristics；
(3) product uses variable-frequency mode of vibration, and even air hole distribution, bad stomata is less, thus thermal shock is stablized,
Erosion-resisting characteristics and thermal shock performance are further promoted without chip off-falling is peeled off substantially in use process；
(4) long service life, cost performance is reasonable, reduces ton steel cost；
(5) the cold repair frequency is reduced, baking energy consumption is substantially reduced.
Present example introduces a kind of carbon-free type of micro- stomata by the way that organic fiber is added in the raw materials for production of prefabricated section
Prefabricated section obtains micro-pore structure using high-temperature baking, and prefabricated section is discharged during molding using frequency conversion type mode of vibration
Bad stomata；Organic fiber can be introduced in prefabricated section, so that dispersion is more evenly, gas cell distribution is more reasonable, is effectively reduced pre-
Clamp dog thermal coefficient greatly improves the thermal shock resistance of prefabricated section, while not reducing its erosion performance resistant to high temperatures again.
In conclusion the present invention can introduce organic fiber in prefabricated section, so that dispersion is more evenly, gas cell distribution is more closed
Reason, is effectively reduced prefabricated section thermal coefficient, greatly improves the thermal shock resistance of prefabricated section, while not reducing its erosion resistant to high temperatures again
Performance.
Present specification describes the example of the embodiment of the present invention, it is not meant to that these embodiments illustrate and describe this
All possible forms of invention.It should be understood that the embodiment in specification can be implemented with a variety of alternative forms.Disclosed specific structure
It is not taken by way of limitation explanation with function detail, only those skilled in the art is instructed to implement representative of the invention in a variety of forms
Property basis.The assemblage characteristic of explanation provides the representative embodiment for being used for typical case.However, with the consistent spy of the teachings of the present invention
The multiple combinations of sign and modification can according to need for specific application or implementation.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of micro- stomata carbon free precast block of refining ladle working lining, which is characterized in that it includes prefabricated section, the prefabricated section
Raw material include that plate diamond spar particle, electro-corundum fine powder, Reactive alumina, silicon powder, novel built grind material, height altogether
Dispersing agent and organic fiber are imitated, the parameter of the organic fiber is 3.8~4.2mm of length, 5~8um of diameter, fusing point 225~235
DEG C, the prefabricated section uses high-temperature baking to obtain micro-pore structure in the fabrication process, and the prefabricated section is during molding
Bad stomata is discharged using frequency conversion type mode of vibration.
2. the micro- stomata carbon free precast block of refining ladle working lining according to claim 1, which is characterized in that micro- gas
Hole control is controlled in 5~8um, the porosity 18~22%.
3. the micro- stomata carbon free precast block of refining ladle working lining according to claim 1, which is characterized in that the frequency conversion
The frequency of formula vibration is 35~40 hertz, is vibrated to no air pocket and generates, and the diameter of the air pocket is greater than 1mm.
4. the micro- stomata carbon free precast block of refining ladle working lining according to claim 1, which is characterized in that the high temperature
The temperature control of baking is at 35~40 DEG C, baking time >=72h.
5. the micro- stomata carbon free precast block of refining ladle working lining according to claim 1, which is characterized in that described novel
Mill material is silica and magnesia to compounding altogether.
6. the micro- stomata carbon free precast block of refining ladle working lining according to claim 5, which is characterized in that described novel
Mill material further includes boric acid to compounding altogether, and the boric acid is used to adjust the molding time of the prefabricated section.
7. the micro- stomata carbon free precast block of refining ladle working lining according to claim 6, which is characterized in that described organic
Fiber is uniformly dispersed in the prefabricated section and is formed uniform micro- under the action of the silica and the magnesia
Stomata.
8. the micro- stomata carbon free precast block of refining ladle working lining according to claim 1, which is characterized in that the raw material
Weight ratio be respectively as follows: plate diamond spar particle 50~60%, electro-corundum fine powder 25~35%, Reactive alumina 6~
8%, silicon powder 0.25~0.35%, novel built grind material 6~8% and organic fiber 0.15~0.25% altogether.
9. the micro- stomata carbon free precast block of refining ladle working lining according to claim 1, which is characterized in that described organic
Fiber is rotated by blender to be dispersed, and blender disperses the organic fiber using counter-rotating.
10. the micro- stomata carbon free precast block of refining ladle working lining according to claim 1, which is characterized in that described pre-
The manufacturing process of clamp dog includes coarse granule mixing and fine grained mixing, and the coarse granule is the raw material that partial size is greater than 1mm, described thin
Particle is the raw material that partial size is less than or equal to 1mm.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811880A (en) * | 2010-04-20 | 2010-08-25 | 中民驰远实业有限公司 | Carbon-free refractory bricks and preparation method thereof |
| CN102731139A (en) * | 2012-07-11 | 2012-10-17 | 洛阳市科创耐火材料有限公司 | Anti-seepage air-permeable brick and manufacturing method thereof |
| CN104193370A (en) * | 2014-08-27 | 2014-12-10 | 北京利尔高温材料股份有限公司 | Preparation method of steel ladle carbon-free precast block |
-
2018
- 2018-09-17 CN CN201811082245.8A patent/CN109232016A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811880A (en) * | 2010-04-20 | 2010-08-25 | 中民驰远实业有限公司 | Carbon-free refractory bricks and preparation method thereof |
| CN102731139A (en) * | 2012-07-11 | 2012-10-17 | 洛阳市科创耐火材料有限公司 | Anti-seepage air-permeable brick and manufacturing method thereof |
| CN104193370A (en) * | 2014-08-27 | 2014-12-10 | 北京利尔高温材料股份有限公司 | Preparation method of steel ladle carbon-free precast block |
Non-Patent Citations (1)
| Title |
|---|
| 袁林等: "《绿色耐火材料》", 31 January 2015, 中国建材工业出版社 * |
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