CN108911772A - A kind of blast furnace cooling stave is inlayed with brick and its production technology - Google Patents
A kind of blast furnace cooling stave is inlayed with brick and its production technology Download PDFInfo
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- CN108911772A CN108911772A CN201810980070.6A CN201810980070A CN108911772A CN 108911772 A CN108911772 A CN 108911772A CN 201810980070 A CN201810980070 A CN 201810980070A CN 108911772 A CN108911772 A CN 108911772A
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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
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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
- C04B35/16—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 silicates other than clay
- C04B35/18—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 silicates other than clay rich in aluminium oxide
- C04B35/195—Alkaline earth aluminosilicates, e.g. cordierite or anorthite
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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
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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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
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
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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
- C04B2235/34—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
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
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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
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/447—Phosphates or phosphites, e.g. orthophosphate, hypophosphite
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- Compositions Of Oxide Ceramics (AREA)
Abstract
A kind of blast furnace cooling stave is inlayed with brick and its production technology, and blast furnace technical field of refractory materials is belonged to.It is characterized in that, parts by weight of raw materials composition includes：16 ~ 20 parts of cordierite, 8.5 ~ 11.5 parts of mullite, 7 ~ 9 parts of the andalusite that partial size is 1mm ~ 2mm, 8.5 ~ 11.5 parts of the andalusite that partial size is 0.5mm ~ 1mm, partial size are 4 ~ 6 parts of 4 ~ 6 parts of 8.5 ~ 11.5 parts of 15 ~ 19 parts of andalusite, 0.15mm ~ 0.20mm white fused alumina, 0.04mm ~ 0.05mm sub-white corundum, high temperature alumina micro mist, 4 ~ 6 parts of 1# Suzhou soil, 3.5 ~ 4.5 parts of the dihydro aluminum phosphate of 10.5 ~ 13.5 parts of the andalusite of 74 μm ~ 0.5mm, partial size less than 0.074mm.Preparation method first controls the volume density and the porosity of wet base, and then fires, and uses brick to obtain the cooling wall that bulk density is high, apparent porosity is low, coefficient of thermal expansion is small, refractoriness is high, refractoriness under load is high, compressive resistance is high and inlay.
Description
Technical field
A kind of blast furnace cooling stave is inlayed with brick and its production technology, and blast furnace technical field of refractory materials is belonged to.
Background technique
Cooling wall is a kind of cooler form that current blast furnace generallys use, and it is cooling to be divided into cast iron according to its material difference
Wall, one bronze medal composite cooling wall of copper cooling wall, steel cooling wall and steel etc..The working principle of cooling wall is：It will be high by the cooling of face formula
The heat passed out in furnace swimmingly exports, and high-temperature heat flux is avoided directly to arrive at furnace shell, and cooling wall is mounted on bricking and furnace shell
Between to reaching the effect.Using the modern blast furnace of full cooling wall structure, cooling has been respectively mounted by the furnace shell of furnace bottom to furnace throat
Wall or water-cooling wall constitute entirely cooling furnace structure.It, will be hot by the heat that is spread out of in blast furnace by the heat exchange with cooling wall
Amount is transmitted in environment through cooling water.
The structure for inlaying brick cooling wall is the edge brick and cast iron gusset of striped stride arrangement, and hot face is plane, is had convenient for hanging
The characteristics of slag.Cooling wall, which is inlayed, uses brick as refractory material, and outer layer timely takes away heat through cooling wall, and internal layer is then in high temperature
Environment.Cooling wall is inlayed larger with the internal-external temperature difference of brick local environment.The cooling wall that current refractory material is made into, which is inlayed, uses brick
After the long-time by the inside and outside big temperature difference influences, it may appear that cracking, scaling-off problem influence the normal work of blast furnace.
Summary of the invention
The technical problem to be solved by the present invention is to：Overcome the deficiencies of the prior art and provide that a kind of bulk density is big, apparent pore
The blast furnace cooling stave that rate is small, intensity is high, coefficient of thermal expansion is small is inlayed with brick and its production technology.
The technical solution adopted by the present invention to solve the technical problems is：The blast furnace cooling stave is inlayed with brick, and feature exists
In parts by weight of raw materials composition includes：16 ~ 20 parts of cordierite, the partial size that partial size is the mm of 0.5 mm ~ 1.4 are not coming for 1mm ~ 3mm
8.5 ~ 11.5 parts of stone, 7 ~ 9 parts of the andalusite that partial size is 1mm ~ 2mm, andalusite 8.5 ~ 11.5 part, that partial size is 0.5mm ~ 1mm
Diameter is 15 ~ 19 parts of andalusite, the partial size 0.15mm of 10.5 ~ 13.5 parts of the andalusite of 74 μm ~ 0.5mm, partial size less than 0.074mm
8.5 ~ 11.5 parts of the white fused alumina of ~ 0.20mm, 4 ~ 6 parts of sub-white corundum, height of the partial size less than 5 μm that partial size is 0.04mm ~ 0.05mm
4 ~ 6 parts of warm alumina powder, 4 ~ 6 parts, 3.5 ~ 4.5 parts of dihydro aluminum phosphate of 1# Suzhou soil of the partial size less than 45 μm.
The present invention provides a kind of cooling wall for the particular surroundings of blast furnace cooling stave and inlays formula with brick.Pass through raw material group
At the collocation with raw material particle size, brick body composition and form after control firing, improve the bulk density of brick, reduce apparent porosity and
Refractoriness, refractoriness under load, compressive resistance are also improved while coefficient of thermal expansion.The influence for reducing the inside and outside big temperature difference, prevents brick
Body cracks, is scaling-off, guarantees longer service life.
The composition of brick body includes Al2O3、Fe2O3And MgO；Wherein Al2O3Shared mass percent is 59.6%, Fe2O3Institute
The mass percent accounted for is that mass percent shared by 0.7%, MgO is 2.5%.It can by the product that above-mentioned raw materials form after firing
Meet the brick body composition requirement, guarantees brick body performance.
Preferably, parts by weight of raw materials composition includes：17 ~ 19 parts of cordierite that partial size is 0.5mm ~ 1.4mm, partial size be 1mm ~
9.5 ~ 10.5 parts of the mullite of 3mm, 7.5 ~ 8.5 parts of the andalusite that partial size is 1mm ~ 2mm, the andalusite that partial size is 0.5mm ~ 1mm
9.5 ~ 10.5 parts, andalusite 16 ~ 18 of the partial size for 11.5 ~ 12.5 parts of the andalusite, partial size of 74 μm ~ 0.5mm less than 0.074mm
Part, 9.5 ~ 10.5 parts of 0.15mm ~ 0.20mm white fused alumina, 4.5 ~ 5.6 parts of 0.04mm ~ 0.05mm sub-white corundum, partial size are less than 5 μm
4.5 ~ 5.6 parts of high temperature alumina micro mist, 4.5 ~ 5.6 parts of 1# Suzhou soil of the partial size less than 45 μm, dihydro aluminum phosphate solution 3.8 ~ 4.2
Part.Preferred raw material composition can reach the optimal brick body performance of the present invention.
A kind of above-mentioned blast furnace cooling stave inlays the production technology with brick, it is characterised in that：The procedure of processing is：
1）It is first kneaded after weighing 12 ~ 16 minutes, adding water to moisture mass percent shared in total material is 3% ~ 4%, is mixed；
2）Benefit, which is molded with a mold, is made wet base, controls wet blank density 2.70g/cm using suppressing3~2.75g/cm3, the porosity≤
15%；
3）Dry body will be obtained after the drying to residual moisture≤0.8% of wet base；
4）Dry body entrucking is fired, and firing temperature is 1340 DEG C ~ 1360 DEG C, and heating rate is 4 DEG C/hr ~ 6 DEG C/hr.
Preparation method of the invention first passes through the volume density and the porosity that control amount of water controls wet base with the mode suppressed,
And then with the firing of specific calcining system, guarantee sufficient reaction bonded between material, to obtain bulk density height, apparent pore
The cooling wall that rate is low, coefficient of thermal expansion is small, refractoriness is high, refractoriness under load is high, compressive resistance is high, which is inlayed, uses brick.
Preferably, step 1）The time of the kneading is 15 ~ 16 minutes, moisture quality shared in total material
Percentage is 3.4% ~ 3.6%.Preferred amount of water is easier to obtain more suitable volume density and the porosity when suppressing.
Preferably, step 2）The wet blank density 2.74g/cm3~2.75g/cm3, the porosity 13% ~ 13.5%.It is preferred that
Volume density and the porosity can obtain superior brick body performance.
Preferably, step 3）The residual moisture of the dry body is 0.5% ~ 0.6%.Preferred degree of drying can fired
It is preferably sintered in journey, forms the lower brick body of apparent porosity.
Preferably, step 4）The firing temperature is 1345 DEG C ~ 1355 DEG C, and the heating rate of the temperature rise period is
4.5℃/ hr~5.5℃/hr。
Compared with prior art, a kind of blast furnace cooling stave of the invention is inlayed beneficial possessed by brick and its production technology
Effect is：The present invention provides a kind of cooling wall for the particular surroundings of blast furnace cooling stave and inlays formula and preparation method with brick.
By the collocation of raw material composition and raw material particle size, brick body composition and form after control firing, preparation method first pass through control and add
Water and the mode suppressed control the volume density and the porosity of wet base, and then with the firing of specific calcining system, guarantee material it
Between sufficient reaction bonded, improve the bulk density of brick, reduce apparent porosity and coefficient of thermal expansion while also improves refractoriness, lotus
Weight softening temperature, compressive resistance.The influence for reducing the inside and outside big temperature difference, prevents brick body from cracking, is scaling-off, and guarantee is longer to use the longevity
Life.
Specific embodiment
The present invention will be further described combined with specific embodiments below, and wherein embodiment 1 is best implements.
Embodiment 1
1）Parts by weight of raw materials forms：18 parts of cordierite, the partial size that partial size is the mm of 0.5 mm ~ 1.4 are not coming for 1mm ~ 3mm
10 parts of stone, 8 parts of the andalusite that partial size is 1mm ~ 2mm, 10 parts of the andalusite that partial size is 0.5mm ~ 1mm, partial size are 74 μm ~ 0.5mm
12 parts of andalusite, partial size less than 10 parts of 17 parts of andalusite, the 0.15mm ~ 0.20mm white fused alumina of 0.074mm, 0.04mm ~
It is 5 parts of 0.05mm sub-white corundum, 5 parts of high temperature alumina micro mist of the partial size less than 5 μm, 5 parts of 1# Suzhou soil of the partial size less than 45 μm, double
4 parts of hydrogen aluminum phosphate solution.Charging sequence：First plus particulate material dry-mixed 2 minutes, then plus bonding agent, be eventually adding mixed powder, it is effectively mixed
Practice 15 minutes time；
2）Adding water to moisture mass percent shared in total material is 3.5%；
3）Molding：Model scale：When modelling, bottom plate -0.5mm, -0.5 mm of draft are controlled.Suppress number： ≥10
It is secondary；Wet base control parameter：Wet green body is close： 2.75g/cm3, the porosity： 13.3%；
4）Dry and entrucking：Dry body residual moisture： 0.55%；Entrucking：Kiln side batch middle and upper part, does not contact flame, kiln car front and rear part
Set up floater guide block.Entrucking placing sand can use 1mm ~ 2mm quartz placing sand；
5）Firing temperature and soaking time：（1345℃~1355℃）*5℃/hr；Ensure 5 high temperature dots.Maximum temperature point is not high
In 1370 DEG C.
Embodiment 2
1）Parts by weight of raw materials forms：17 parts of cordierite, the partial size that partial size is the mm of 0.5 mm ~ 1.4 are not coming for 1mm ~ 3mm
10.5 parts of stone, 7.5 parts of the andalusite that partial size is 1mm ~ 2mm, 10.5 parts of the andalusite that partial size is 0.5mm ~ 1mm, partial size be 74 μm ~
9.5 parts of 18 parts of andalusite, the 0.15mm ~ 0.20mm white fused alumina of 11.5 parts of andalusite, partial size less than 0.074mm of 0.5mm,
5.6 parts of 0.04mm ~ 0.05mm sub-white corundum, 4.5 parts of high temperature alumina micro mist of the partial size less than 5 μm, 1# of the partial size less than 45 μm
5.6 parts of Suzhou soil, 3.8 parts of dihydro aluminum phosphate solution.Charging sequence：First plus particulate material dry-mixed 2 minutes, then plus bonding agent, finally
Mixed powder is added, is effectively kneaded the time 16 minutes；
2）Adding water to moisture mass percent shared in total material is 3.6%；
3）Molding：Model scale：When modelling, bottom plate -0.5mm, -0.5 mm of draft are controlled.Suppress number： ≥10
It is secondary；Wet base control parameter：Wet green body is close： 2.74g/cm3, the porosity：13.5%；
4）Dry and entrucking：Dry body residual moisture： 0.6%；Entrucking：Kiln side batch middle and upper part, does not contact flame, kiln car front and rear part frame
If floater guide block.Entrucking placing sand can use 1mm ~ 2mm quartz placing sand；
5）Firing temperature and soaking time：（1345℃~1355℃）*5.5℃/hr；Ensure 5 high temperature dots.Maximum temperature point is not
Higher than 1370 DEG C.
Embodiment 3
1）Parts by weight of raw materials forms：19 parts of cordierite, the partial size that partial size is the mm of 0.5 mm ~ 1.4 are not coming for 1mm ~ 3mm
9.5 parts of stone, 8.5 parts of the andalusite that partial size is 1mm ~ 2mm, 9.5 parts of the andalusite that partial size is 0.5mm ~ 1mm, partial size be 74 μm ~
10.5 parts of 16 parts of andalusite, the 0.15mm ~ 0.20mm white fused alumina of 12.5 parts of andalusite, partial size less than 0.074mm of 0.5mm,
4.5 parts of 0.04mm ~ 0.05mm sub-white corundum, 5.6 parts of high temperature alumina micro mist of the partial size less than 5 μm, 1# of the partial size less than 45 μm
4.5 parts of Suzhou soil, 4.2 parts of dihydro aluminum phosphate solution.Charging sequence：First plus particulate material dry-mixed 2 minutes, then plus bonding agent, finally
Mixed powder is added, is effectively kneaded the time 15 minutes；
2）Adding water to moisture mass percent shared in total material is 3.4%；
3）Molding：Model scale：When modelling, bottom plate -0.5mm, -0.5 mm of draft are controlled.Suppress number： ≥10
It is secondary；Wet base control parameter：Wet green body is close： 2.75g/cm3, the porosity： 13%；
4）Dry and entrucking：Dry body residual moisture： 0.5%；Entrucking：Kiln side batch middle and upper part, does not contact flame, kiln car front and rear part frame
If floater guide block.Entrucking placing sand can use 1mm ~ 2mm quartz placing sand；
5）Firing temperature and soaking time：（1345℃~1355℃）*4.5℃/ hr；Ensure 5 high temperature dots.Maximum temperature point is not
Higher than 1370 DEG C.
Embodiment 4
1）Parts by weight of raw materials forms：16 parts of cordierite, the partial size that partial size is the mm of 0.5 mm ~ 1.4 are not coming for 1mm ~ 3mm
11.5 parts of stone, 7 parts of the andalusite that partial size is 1mm ~ 2mm, 11.5 parts of the andalusite that partial size is 0.5mm ~ 1mm, partial size be 74 μm ~
8.5 parts of 19 parts of andalusite, the 0.15mm ~ 0.20mm white fused alumina of 10.5 parts of andalusite, partial size less than 0.074mm of 0.5mm,
6 parts of 0.04mm ~ 0.05mm sub-white corundum, 4 parts of high temperature alumina micro mist of the partial size less than 5 μm, 1# Suzhou of the partial size less than 45 μm
6 parts, 3.5 parts of dihydro aluminum phosphate of soil.Charging sequence：First plus particulate material dry-mixed 2 minutes, then plus bonding agent, be eventually adding mixed powder,
The time is effectively kneaded not less than 14 minutes；
2）Adding water to moisture mass percent shared in total material is 4%；
3）Molding：Model scale：When modelling, bottom plate -0.5mm, -0.5 mm of draft are controlled.Suppress number： ≥10
It is secondary；Wet base control parameter：Wet green body is close：2.70g/cm3, the porosity：15%；
4）Dry and entrucking：Dry body residual moisture： 0.7%；Entrucking：Kiln side batch middle and upper part, does not contact flame, kiln car front and rear part frame
If floater guide block.Entrucking placing sand can use 1mm ~ 2mm quartz placing sand；
5）Firing temperature and soaking time：（1340℃~1360℃）*6℃/hr；Ensure 5 high temperature dots.Maximum temperature point is not high
In 1370 DEG C.
Embodiment 5
1）Parts by weight of raw materials forms：20 parts of cordierite, the partial size that partial size is the mm of 0.5 mm ~ 1.4 are not coming for 1mm ~ 3mm
8.5 parts of stone, 9 parts of the andalusite that partial size is 1mm ~ 2mm, 8.5 parts of the andalusite that partial size is 0.5mm ~ 1mm, partial size be 74 μm ~
11.5 parts of 19 parts of andalusite, the 0.15mm ~ 0.20mm white fused alumina of 13.5 parts of andalusite, partial size less than 0.074mm of 0.5mm,
4 parts of 0.04mm ~ 0.05mm sub-white corundum, 6 parts of high temperature alumina micro mist of the partial size less than 5 μm, 1# Suzhou of the partial size less than 45 μm
4 parts, 4.5 parts of dihydro aluminum phosphate of soil.Charging sequence：First plus particulate material dry-mixed 2 minutes, then plus bonding agent, be eventually adding mixed powder,
The time is effectively kneaded not less than 12 minutes；
2）Adding water to moisture mass percent shared in total material is 3%；
3）Molding：Model scale：When modelling, bottom plate -0.5mm, -0.5 mm of draft are controlled.Suppress number： ≥10
It is secondary；Wet base control parameter：Wet green body is close： 2.75g/cm3, the porosity：12%；
4）Dry and entrucking：Dry body residual moisture： 0.8%；Entrucking：Kiln side batch middle and upper part, does not contact flame, kiln car front and rear part frame
If floater guide block.Entrucking placing sand can use 1mm ~ 2mm quartz placing sand；
5）Firing temperature and soaking time：（1340℃~1360℃）*4℃/ hr；Ensure 5 high temperature dots.Maximum temperature point is not high
In 1370 DEG C.
Comparative example 1
Parts by weight of raw materials forms：10 parts of cordierite that partial size is the mm of 0.5 mm ~ 1.4, the mullite that partial size is 1mm ~ 3mm
18 parts, partial size be 10 parts of 47 parts of andalusite, the 0.15mm ~ 0.20mm white fused alumina of 74 μm ~ 2mm, 0.04mm ~ 0.05mm it is sub- it is white just
Beautiful 5 parts, 5 parts of high temperature alumina micro mist of the partial size less than 5 μm, 5 parts of 1# Suzhou soil of the partial size less than 45 μm, dihydro aluminum phosphate solution
4 parts.Preparation process is the same as embodiment 1.
Cooling wall obtained by 1 embodiment and comparative example of table inlays the physical and chemical index with brick
。
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But without departing from the technical solutions of the present invention, according to the technical essence of the invention to above embodiments institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection scope of technical solution of the present invention.
Claims (8)
1. a kind of blast furnace cooling stave is inlayed with brick, which is characterized in that parts by weight of raw materials, which forms, includes：Partial size is 0.5 mm ~ 1.4
16 ~ 20 parts of the cordierite of mm, 8.5 ~ 11.5 parts of the mullite that partial size is 1mm ~ 3mm, 7 ~ 9 parts of the andalusite that partial size is 1mm ~ 2mm,
8.5 ~ 11.5 parts of andalusite that partial size is 0.5mm ~ 1mm, 10.5 ~ 13.5 parts of andalusite, the partial size that partial size is 74 μm ~ 0.5mm are small
In 15 ~ 19 parts of the andalusite of 0.074mm, 8.5 ~ 11.5 parts of the white fused alumina that partial size is 0.15mm ~ 0.20mm, partial size be 0.04mm ~
4 ~ 6 parts of the sub-white corundum of 0.05mm, 4 ~ 6 parts of high temperature alumina micro mist of the partial size less than 5 μm, 1# Suzhou soil of the partial size less than 45 μm
4 ~ 6 parts, 3.5 ~ 4.5 parts of dihydro aluminum phosphate.
2. a kind of blast furnace cooling stave according to claim 1 is inlayed with brick, it is characterised in that：The composition of brick body includes
Al2O3、Fe2O3And MgO；Wherein Al2O3Shared mass percent is 59.6%, Fe2O3Shared mass percent is 0.7%,
Mass percent shared by MgO is 2.5%.
3. a kind of blast furnace cooling stave according to claim 1 is inlayed with brick, it is characterised in that：Parts by weight of raw materials composition packet
It includes：17 ~ 19 parts of cordierite that partial size is the mm of 0.5mm ~ 1.4,9.5 ~ 10.5 parts of the mullite that partial size is 1mm ~ 3mm, partial size are
7.5 ~ 8.5 parts of the andalusite of 1mm ~ 2mm, 9.5 ~ 10.5 parts of the andalusite that partial size is 0.5mm ~ 1mm, partial size are 74 μm ~ 0.5mm's
16 ~ 18 parts of the andalusite of 11.5 ~ 12.5 parts of andalusite, partial size less than 0.074mm, the white fused alumina that partial size is 0.15mm ~ 0.20mm
9.5 ~ 10.5 parts, the high temperature alumina micro mist of 4.5 ~ 5.6 parts of sub-white corundum, partial size less than 5 μm that partial size is 0.04mm ~ 0.05mm
4.5 ~ 5.6 parts, 4.5 ~ 5.6 parts, 3.8 ~ 4.2 parts of dihydro aluminum phosphate solution of 1# Suzhou soil of the partial size less than 45 μm.
4. blast furnace cooling stave described in a kind of claim 1 ~ 3 inlays the production technology with brick, it is characterised in that：Procedure of processing
For：
1）It is first kneaded after weighing 12 ~ 16 minutes, adding water to moisture mass percent shared in total material is 3% ~ 4%, is mixed；
2）Benefit, which is molded with a mold, is made wet base, controls wet blank density 2.70g/cm using suppressing3~2.75g/cm3, the porosity≤
15%；
3）Dry body will be obtained after the drying to residual moisture≤0.8% of wet base；
4）Dry body entrucking is fired, and firing temperature is 1340 DEG C ~ 1360 DEG C, and heating rate is 4 DEG C/hr ~ 6 DEG C/hr.
5. a kind of blast furnace cooling stave according to claim 4 inlays the production technology with brick, it is characterised in that：Step 1）Institute
The time for stating kneading is 15 ~ 16 minutes, and moisture mass percent shared in total material is 3.4% ~ 3.6%.
6. a kind of blast furnace cooling stave according to claim 4 inlays the production technology with brick, it is characterised in that：Step 2）Institute
The wet blank density 2.74g/cm stated3~2.75g/cm3, the porosity 13% ~ 13.5%.
7. a kind of blast furnace cooling stave according to claim 4 inlays the production technology with brick, it is characterised in that：Step 3）Institute
The residual moisture for stating dry body is 0.5% ~ 0.6%.
8. a kind of blast furnace cooling stave according to claim 4 inlays the production technology with brick, it is characterised in that：Step 4）Institute
The firing temperature stated is 1345 DEG C ~ 1355 DEG C, and the heating rate of the temperature rise period is 4.5 DEG C/hr ~ 5.5 DEG C/hr.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110028316A (en) * | 2019-05-17 | 2019-07-19 | 山东工业职业学院 | A kind of cordierite kiln furniture saggar and preparation method thereof |
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| CN1800087A (en) * | 2006-01-16 | 2006-07-12 | 宜兴市宝欣耐火材料有限公司 | Highly heatproof and shockproof mullite-cordierite refractory composition |
| CN102432304A (en) * | 2011-08-25 | 2012-05-02 | 任健均 | Iolite-mullite-andalusite thermal-shock-resistant brick and preparation method thereof |
| CN103373856A (en) * | 2012-04-26 | 2013-10-30 | 郑州安耐克实业有限公司 | High-stress-strain low-creepage high-thermal-shock-resistance refractory brick and manufacturing method thereof |
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| CN1800087A (en) * | 2006-01-16 | 2006-07-12 | 宜兴市宝欣耐火材料有限公司 | Highly heatproof and shockproof mullite-cordierite refractory composition |
| CN102432304A (en) * | 2011-08-25 | 2012-05-02 | 任健均 | Iolite-mullite-andalusite thermal-shock-resistant brick and preparation method thereof |
| CN103373856A (en) * | 2012-04-26 | 2013-10-30 | 郑州安耐克实业有限公司 | High-stress-strain low-creepage high-thermal-shock-resistance refractory brick and manufacturing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110028316A (en) * | 2019-05-17 | 2019-07-19 | 山东工业职业学院 | A kind of cordierite kiln furniture saggar and preparation method thereof |
| CN110028316B (en) * | 2019-05-17 | 2022-06-03 | 山东工业职业学院 | Cordierite kiln furniture sagger and preparation method thereof |
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| CN108911772B (en) | 2021-09-14 |
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