CN106045531A - Prefabricated-grate pouring material - Google Patents
Prefabricated-grate pouring material Download PDFInfo
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- CN106045531A CN106045531A CN201610380157.0A CN201610380157A CN106045531A CN 106045531 A CN106045531 A CN 106045531A CN 201610380157 A CN201610380157 A CN 201610380157A CN 106045531 A CN106045531 A CN 106045531A
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- Prior art keywords
- parts
- particle diameter
- grate
- sillimanite
- electro
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Classifications
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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
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
Abstract
The invention discloses a prefabricated-grate pouring material. The prefabricated-grate pouring material is prepared from, by mass, 14-17 parts of sillimanite with the particle size of 0 mm to 1 mm, 18-22 parts of sillimanite with the particle size of 1 mm to 3mm, 14-17 parts of fused corundum aggregate with the particle size of 3 mm to 5 mm, 19-24 parts of fused corundum aggregate with the particle size of 5 mm to 8mm, 3-6 parts of fused quartz with the particle size of 200 meshes, 4-7 parts of silica fume, 2-4 parts of silicon metal powder, 4-8 parts of calcium aluminate, 1-3 parts of magnesium oxide, 1-3 parts of steel fibers and 8-12 parts of alpha-aluminium oxide. The prefabricated-grate pouring material has the advantages that a grate prepared with heat resistant steel is replaced with a grate poured with the pouring material, and the original advantages of high-temperature resistance, corrosion resistance, oxidation resistance and heat shock resistance and the like are guaranteed; meanwhile, the preparing cost of the grate is reduced, high deformation of the grate in the high-temperature area is avoided accordingly, only slow deformation occurs, and the service life reaches two years or above.
Description
[technical field]
The present invention relates to the technical field of refractory material, the particularly technical field of grate prefabricated component castable.
[background technology]
The product being made up of metals such as the pig iron, cast iron and copper, after machine-shaping, transports out from finishing stove, need through
The passage being equipped with grate prefabricated component bottom crossing carries, and the grate prefabricated component of laying can play cooled product, and goes
Except the effect of residue impurity, grate majority in the market is arranged in parallel and form by some heat resisting steel, but heat-resisting
Steel price, cost is high, is very difficult to apply in large-scale processing.
[summary of the invention]
The purpose of the present invention solves the problems of the prior art exactly, proposes a kind of grate prefabricated component castable, it is possible to joint
About cost, increases the service life of grate.
For achieving the above object, the present invention proposes a kind of grate prefabricated component castable, including following components and each component
Mass ratio is: particle diameter be 0～1mm sillimanite 14～17 parts, particle diameter be 1～3mm sillimanite 18～22 parts, particle diameter is 3
～the electro-corundum aggregate 14 of 5mm～17 parts, particle diameter be 5～8mm electro-corundum aggregate 19～24 parts, particle diameter is 200 purposes
Vitreous silica 3～6 parts, SILICA FUME 4～7 parts, metallic silicon power 2～4 parts, calcium aluminate 4～8 parts, magnesium oxide 1～3 parts, steel fibre 1
～3 parts, Alpha-alumina 8～12 parts.
As preferably, each constituent mass ratio is: particle diameter is the sillimanite 15 parts of 0～1mm, and particle diameter is the silicon line of 1～3mm
20 parts of stone, particle diameter is 15 parts of the electro-corundum aggregate of 3～5mm, and particle diameter is 20 parts of the electro-corundum aggregate of 5～8mm, and particle diameter is
The vitreous silica of 200 mesh 5 parts, SILICA FUME 5 parts, metallic silicon power 3 parts, calcium aluminate 5 parts, magnesium oxide 1 part, steel fibre 1 part, alpha-oxidation
10 parts of aluminum.
As preferably, each constituent mass ratio is: particle diameter is the sillimanite 16 parts of 0～1mm, and particle diameter is the silicon line of 1～3mm
21 parts of stone, particle diameter is 13 parts of the electro-corundum aggregate of 3～5mm, and particle diameter is 18 parts of the electro-corundum aggregate of 5～8mm, and particle diameter is
The vitreous silica of 200 mesh 6 parts, SILICA FUME 5.5 parts, metallic silicon power 3.5 parts, calcium aluminate 5 parts, magnesium oxide 1 part, steel fibre 1 part, α-
Aluminium oxide 10 parts.
As preferably, each constituent mass ratio is: particle diameter is the sillimanite 13 parts of 0～1mm, and particle diameter is the silicon line of 1～3mm
18 parts of stone, particle diameter is 14 parts of the electro-corundum aggregate of 3～5mm, and particle diameter is 19 parts of the electro-corundum aggregate of 5～8mm, and particle diameter is
The vitreous silica of 200 mesh 5 parts, SILICA FUME 7 parts, metallic silicon power 3 parts, calcium aluminate 8 parts, magnesium oxide 1 part, steel fibre 2 parts, alpha-oxidation
10 parts of aluminum.
As preferably, described electro-corundum aggregate is fused white corundum, and its alumina content is more than 98%, has volume close
The advantages such as degree is big, the porosity is low, can be effectively improved volume stability and the thermal shock resistance of material.
As preferably, described steel fibre is waveform steel fibre, and the cross section of steel fibre is circular, increases steel fibre and waters
The contact area of material feeding matrix.
As preferably, described calcium aluminate is the pure calcium aluminate of superelevation aluminium profiles, improves Al in raw material2O3Content, make castable
Anti-scour property significantly improve.
Beneficial effects of the present invention: the present invention replaces by heat resisting steel by using the grate prefabricated component of castable cast
The grate made, ensure original high temperature resistant, while the advantage such as corrosion-resistant, antioxidation, anti-thermal shock, reduce grate
Cost of manufacture, and make grate, at high-temperature area, strong deformation will not occur, only can deformation slowly, service life is up to
More than 2 years.
[detailed description of the invention]
Embodiment one:
Grate prefabricated component castable, each constituent mass ratio is: particle diameter is the sillimanite 15 parts of 0～1mm, particle diameter be 1～
The sillimanite of 3mm 20 parts, particle diameter is 15 parts of the electro-corundum aggregate of 3～5mm, and particle diameter is the electro-corundum aggregate 20 of 5～8mm
Part, particle diameter is the vitreous silica 5 parts of 200 mesh, SILICA FUME 5 parts, metallic silicon power 3 parts, calcium aluminate 5 parts, magnesium oxide 1 part, steel fibre 1
Part, Alpha-alumina 10 parts.
The cast best results of the present embodiment.
Embodiment two:
Grate prefabricated component castable, each constituent mass ratio is: particle diameter is the sillimanite 16 parts of 0～1mm, particle diameter be 1～
The sillimanite of 3mm 21 parts, particle diameter is 13 parts of the electro-corundum aggregate of 3～5mm, and particle diameter is the electro-corundum aggregate 18 of 5～8mm
Part, particle diameter is the vitreous silica 6 parts of 200 mesh, SILICA FUME 5.5 parts, metallic silicon power 3.5 parts, calcium aluminate 5 parts, magnesium oxide 1 part, steel
Fiber 1 part, Alpha-alumina 10 parts.
The cast cost of the present embodiment is lower.
Embodiment three:
Grate prefabricated component castable, each constituent mass ratio is: particle diameter is the sillimanite 13 parts of 0～1mm, particle diameter be 1～
The sillimanite of 3mm 18 parts, particle diameter is 14 parts of the electro-corundum aggregate of 3～5mm, and particle diameter is the electro-corundum aggregate 19 of 5～8mm
Part, particle diameter is the vitreous silica 5 parts of 200 mesh, SILICA FUME 7 parts, metallic silicon power 3 parts, calcium aluminate 8 parts, magnesium oxide 1 part, steel fibre 2
Part, Alpha-alumina 10 parts.
The cast sintering of the present embodiment is more prone to.
It is below the detailed description of each component in the present invention a kind of grate prefabricated component castable:
Sillimanite
Sillimanite is a kind of brown, light green color, light blue or white glassy silicate mineral, and in hot conditions
Under can be converted into mullite, test shows, sillimanite 1750 DEG C insulation 2h high temperature sintering, the resistance to of high-compactness can be prepared
Fire material, has the aggressivity of good elevated temperature strength, volume stability, anti-metal or glass melt.
Electro-corundum aggregate
Electro-corundum is the corundum fireproof raw material that a kind of electric smelting method is made, and alumina content is high, and corundum crystal grain is complete
Thick, chemical stability is high.Melt in electric arc furnace for raw material with commercial alumina or bauxite chamotte, remove impurity, cold
But frit.Kind mainly has fused brown corundum and a fused white corundum two kinds, of the present invention for fused white corundum,
Its alumina content is more than 98%, has the advantages such as bulk density is big, the porosity is low, can be effectively improved the volume stability of material
And thermal shock resistance.
Vitreous silica
Vitreous silica as a kind of exotic material, the various complexity of the pourable one-tenth of vitreous silica exotic material prefabricated
Part, and mechanical strength is high, and heat conductivity is little, and chemical stability is good, and thermal shock performance is good, and linear expansion coefficient is little, anti-with acid hardly
Should, cost of manufacture is low, low price.
Silicon powder
Silicon powder is through the multiple tracks processes such as broken, ball milling, flotation, pickling purification, high purity water process by natural quartz
Micropowder.Silicon powder is a kind of Inorganic Non-metallic Materials nontoxic, tasteless, free of contamination, possesses that temperature tolerance is good, acid and alkali-resistance is rotten
Alkaline material in the excellent performances, with the present invention such as erosion, poor thermal conductivity, high insulation, low bulk, stable chemical performance, hardness are big
Material magnesium oxide reaction generates gelinite, strengthens the intensity of castable, improves life of product.
Metallic silicon power
Metallic silicon power serves the Fast Sintering promoting castable, can significantly improve the anti-folding of castable, compressive resistance,
Additionally these metallic silicon powers may also operate as anti-oxidation effect, protects castable to a certain extent, extends service life.
Calcium aluminate
The calcium aluminate used in the present invention is the pure calcium aluminate of superelevation aluminium profiles, its Al2O3Content higher, typically 78～
85%, there is hardness high, toughness is big, improves Al in raw material2O3Content, make the anti-scour property of castable significantly improve.
Steel fibre
Steel fibre is that one is made to cut off finer wire method, cold-rolling strip steel shearing, steel ingot milling or molten steel rapid condensation method
(fibre length and the ratio of its diameter, when fibre section is non-circular, use the straight of the conversion representative section area of a circle to draw ratio
Footpath) it is the fiber of 40～80.Steel fibre in the present invention is waveform steel fibre, adds the condensation of steel fibre and castable matrix
Intensity, enhances the comprcssive strength of castable.
Alpha-alumina
Alpha-alumina, is again nano aluminium oxide, and nano aluminium oxide xz-L14 shows fluffy white powder state, and crystal formation is α type,
Particle diameter is 20nm, specific surface area >=50m/g, and even particle size distribution, purity are high, high dispersive, and its specific surface is low, has resistant to elevated temperatures
Inertia, but it is not belonging to activated alumina, almost without catalysis activity, nano aluminium oxide xz-L14 thermostability is strong, and good moldability is brilliant
Mutually stable, hardness high, good stability of the dimension, can have the compactness of lower raising castable, fineness, cool-hot fatigue, rupture tough
Property, creep-resistant property and anti-wear performance.
Above-described embodiment is the description of the invention, is not limitation of the invention, any to simple transformation of the present invention after
Scheme belong to protection scope of the present invention.
Claims (7)
1. a grate prefabricated component castable, it is characterised in that: include that following components and each constituent mass ratio are: particle diameter is 0
～the sillimanite 14 of 1mm～17 parts, particle diameter be 1～3mm sillimanite 18～22 parts, particle diameter is the electro-corundum aggregate of 3～5mm
14～17 parts, particle diameter be 5～8mm electro-corundum aggregate 19～24 parts, particle diameter is the vitreous silica 3 of 200 mesh～6 parts, micro-silicon
Powder 4～7 parts, metallic silicon power 2～4 parts, calcium aluminate 4～8 parts, magnesium oxide 1～3 parts, steel fibre 1～3 parts, Alpha-alumina 8～12
Part.
2. grate prefabricated component castable as claimed in claim 1, it is characterised in that: each constituent mass ratio is: particle diameter be 0～
The sillimanite of 1mm 15 parts, particle diameter is the sillimanite 20 parts of 1～3mm, and particle diameter is 15 parts of the electro-corundum aggregate of 3～5mm, particle diameter
Being 20 parts of the electro-corundum aggregate of 5～8mm, particle diameter is the vitreous silica 5 parts of 200 mesh, SILICA FUME 5 parts, metallic silicon power 3 parts, aluminum
Acid calcium 5 parts, magnesium oxide 1 part, steel fibre 1 part, Alpha-alumina 10 parts.
3. grate prefabricated component castable as claimed in claim 1, it is characterised in that: each constituent mass ratio is: particle diameter be 0～
The sillimanite of 1mm 16 parts, particle diameter is the sillimanite 21 parts of 1～3mm, and particle diameter is 13 parts of the electro-corundum aggregate of 3～5mm, particle diameter
Being 18 parts of the electro-corundum aggregate of 5～8mm, particle diameter is the vitreous silica 6 parts of 200 mesh, SILICA FUME 5.5 parts, metallic silicon power 3.5
Part, calcium aluminate 5 parts, magnesium oxide 1 part, steel fibre 1 part, Alpha-alumina 10 parts.
4. grate prefabricated component castable as claimed in claim 1, it is characterised in that: each constituent mass ratio is: particle diameter be 0～
The sillimanite of 1mm 13 parts, particle diameter is the sillimanite 18 parts of 1～3mm, and particle diameter is 14 parts of the electro-corundum aggregate of 3～5mm, particle diameter
Being 19 parts of the electro-corundum aggregate of 5～8mm, particle diameter is the vitreous silica 5 parts of 200 mesh, SILICA FUME 7 parts, metallic silicon power 3 parts, aluminum
Acid calcium 8 parts, magnesium oxide 1 part, steel fibre 2 parts, Alpha-alumina 10 parts.
5. grate prefabricated component castable as claimed in claim 1, it is characterised in that: described electro-corundum aggregate is that electric smelting is the most firm
Beautiful.
6. grate prefabricated component castable as claimed in claim 1, it is characterised in that: described steel fibre is waveform steel fibre, steel
The cross section of fiber is circular.
7. grate prefabricated component castable as claimed in claim 1, it is characterised in that: described calcium aluminate is the acid of superelevation aluminium profiles fine aluminium
Calcium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610380157.0A CN106045531B (en) | 2016-05-31 | 2016-05-31 | Castable for prefabricated grate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610380157.0A CN106045531B (en) | 2016-05-31 | 2016-05-31 | Castable for prefabricated grate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106045531A true CN106045531A (en) | 2016-10-26 |
| CN106045531B CN106045531B (en) | 2021-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610380157.0A Active CN106045531B (en) | 2016-05-31 | 2016-05-31 | Castable for prefabricated grate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111548175A (en) * | 2020-06-22 | 2020-08-18 | 焦作诺尔曼炉业有限公司 | Low-expansion-rate thermal-shock-resistant erosion-resistant high-strength castable |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1931783A (en) * | 2006-10-12 | 2007-03-21 | 洛阳鹏飞耐火材料有限公司 | Hot cast high temperature wear resistant ceramic material |
| CN103435359A (en) * | 2013-07-10 | 2013-12-11 | 长兴正豪耐火材料有限公司 | Thermal shock-resistant refractory castable material |
| CN103755361A (en) * | 2013-12-20 | 2014-04-30 | 中钢集团洛阳耐火材料研究院有限公司 | Aluminum-chromium-silicon fireproof material |
| KR101532671B1 (en) * | 2013-12-23 | 2015-06-30 | 주식회사 포스코 | Refractory composition and slide gate plate for steel casting by using it |
-
2016
- 2016-05-31 CN CN201610380157.0A patent/CN106045531B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1931783A (en) * | 2006-10-12 | 2007-03-21 | 洛阳鹏飞耐火材料有限公司 | Hot cast high temperature wear resistant ceramic material |
| CN103435359A (en) * | 2013-07-10 | 2013-12-11 | 长兴正豪耐火材料有限公司 | Thermal shock-resistant refractory castable material |
| CN103755361A (en) * | 2013-12-20 | 2014-04-30 | 中钢集团洛阳耐火材料研究院有限公司 | Aluminum-chromium-silicon fireproof material |
| KR101532671B1 (en) * | 2013-12-23 | 2015-06-30 | 주식회사 포스코 | Refractory composition and slide gate plate for steel casting by using it |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111548175A (en) * | 2020-06-22 | 2020-08-18 | 焦作诺尔曼炉业有限公司 | Low-expansion-rate thermal-shock-resistant erosion-resistant high-strength castable |
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| CN106045531B (en) | 2021-01-12 |
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