CN107140955A - A kind of refractory brick and preparation method thereof - Google Patents
A kind of refractory brick and preparation method thereof Download PDFInfo
- Publication number
- CN107140955A CN107140955A CN201710364112.9A CN201710364112A CN107140955A CN 107140955 A CN107140955 A CN 107140955A CN 201710364112 A CN201710364112 A CN 201710364112A CN 107140955 A CN107140955 A CN 107140955A
- Authority
- CN
- China
- Prior art keywords
- refractory brick
- alumina
- present
- mullite
- sodium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
-
- 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
- C04B2235/3201—Alkali metal oxides or oxide-forming salts thereof
-
- 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
- C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
-
- 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
-
- 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
- C04B2235/40—Metallic constituents or additives not added as binding phase
- C04B2235/405—Iron group metals
-
- 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
-
- 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
-
- 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
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/608—Green bodies or pre-forms with well-defined density
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention provides a kind of refractory brick, by alumina, mullite, silicon powder, metallic silicon, ferrosilicon, Al2O3Prepared with the phosphate of sodium.Compared with prior art, alumina, mullite and Al in the refractory brick that the present invention is provided2O3There is preferable fire resistance Deng primary raw material, react relatively weak with sodium salt under the conditions of temperature in use, be less prone to transition sintering or burning；And contain metallic silicon and ferrosilicon in the refractory brick in the present invention, aoxidize at service temperatures, certain volumetric expansion can be produced, it can offset partially due to sintering the contraction produced, under the comprehensive function of various raw materials, make the refractory brick that the present invention is provided that there is less sintering shrinkage when being calcined vanadium chromium slag sodium.Present invention also offers a kind of preparation method of refractory brick.
Description
Technical field
The present invention relates to technical field of refractory materials, more particularly to a kind of refractory brick and preparation method thereof.
Background technology
Panzhihua Hongge Deposit bed vanadium titano-magnetite is one of big mine of Panxi Diqu four, and about 3,600,000,000 tons of reserves, are chromium type high
Vanadium titano-magnetite, great Development volue.The characteristics of ore deposit is that chromium content is high, vanadium Ti content is relatively low.After smelting and separation
Vanadium chromium enters in slag in the form of the oxide, the slag abbreviation vanadium chromium slag.But the separation of vanadium chromium and extractive technique are domestic in vanadium chromium slag
The technical barrier of outer generally existing, climbs steel by proving repeatedly, it is believed that it is a kind of effective method to use rotary kiln baking.
If common mineral material, it is calcined using rotary kiln at 850~950 DEG C, uses common clay matter or high aluminum fire resisting
Material can meet use requirement completely.But the compound of vanadium chromium slag sodium roasting contains substantial amounts of sodium salt (its Na2O content reaches
More than 35%), double sintering often occurs in common refractory in roasting process, produces larger sintering shrinkage.Revolution
Kiln is as a kind of equipment rotated for a long time in operation process, and shrinking, which occurs, in its inner lining refractory often occurs refractory brick pine
It is dynamic, and then turn round, cause rotary kiln non-plan repair, reduce the operating rate of rotary kiln.
The content of the invention
In view of this, it is an object of the invention to provide a kind of refractory brick and preparation method thereof, the fire resisting that the present invention is provided
Brick, which is used for vanadium chromium slag sodium roasting, has less sintering shrinkage.
The invention provides a kind of refractory brick, by alumina, mullite, silicon powder, metallic silicon, ferrosilicon, Al2O3With the phosphorus of sodium
Hydrochlorate is prepared.
It is preferred that, the alumina, mullite, silicon powder, metallic silicon, ferrosilicon, Al2O3Phosphatic mass ratio with sodium is
(70~75)：(5~10)：(0.5~1.5)：(3~7)：(4~8)：(1~1.5)：(1.5~2).
It is preferred that, the granularity of the alumina is the one or more in A, B and C, 2 ＜ A ＜ 6mm, 0 ＜ B ＜ 2mm, C≤
200 mesh.
It is preferred that, the mass ratio of A granularities alumina, B granularities alumina and C granularity alumina is (25~35)：(30~40)：(10
~15).
It is preferred that, the mesh of the granularity of the mullite≤200.
It is preferred that, the phosphate of the sodium includes calgon or sodium tripolyphosphate.
The invention provides a kind of preparation method of the refractory brick described in above-mentioned technical proposal, including：
By alumina, mullite, silicon powder, metallic silicon, ferrosilicon, Al2O3, sodium phosphate and water mixing, obtain compound；
Compound is carried out to dry after brickmaking, refractory brick is obtained.
It is preferred that, the temperature of the drying is 180~220 DEG C.
It is preferred that, the preparation method of the compound is：
By mullite, silicon powder, metallic silicon, ferrosilicon, Al2O3Mixed with the phosphate of sodium, obtain mixture；
Alumina and water are mixed, aggregate is obtained；
The mixture and aggregate are mixed, compound is obtained.
It is preferred that, the quality of the water is the 3~4% of alumina quality.
Compared with prior art, alumina, mullite and Al in the refractory brick that the present invention is provided2O3Deng primary raw material have compared with
Good fire resistance, reacts relatively weak with sodium salt under the conditions of temperature in use, is less prone to transition sintering or burning；And this
Contain metallic silicon and ferrosilicon in refractory brick in invention, aoxidize at service temperatures, certain volumetric expansion can be produced, can
Offset partially due to the contraction that sintering is produced, under the comprehensive function of various raw materials, makes the refractory brick that the present invention is provided in roasting
There is less sintering shrinkage during vanadium chromium slag sodium.
Embodiment
The technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described implementation
Example only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, this area is common
Technical staff it is improved or retouching all other example, belong to the scope of protection of the invention.
The invention provides a kind of refractory brick, by alumina, mullite, silicon powder, metallic silicon, ferrosilicon, Al2O3With the phosphorus of sodium
Hydrochlorate is prepared.
In the present invention, the alumina is preferably high grade bauxite.In the present invention, the composition of the alumina is preferably：
Al2O3>=85%, Fe2O3≤ 2.5%, Na2O and K2O≤0.4%.In the present invention, the preferred ＞ 1790 of the refractoriness of the alumina
℃.The present invention, without special limitation, can be bought by market and be obtained to the source of the alumina.In the present invention, the alumina
Granularity be preferably one or more in A, B and C, more preferably tri- kinds of A, B and C, 2 ＜ A ＜ 6mm, preferably 3~5mm, more
Preferably 4mm；0 ＜ B ＜ 2mm, more preferably preferably 0.5~1.5mm, 1mm；(expression can pass through 200 purposes to the mesh of C≤200
Mesh, i.e. granularity are less than 74 microns), it is preferably that≤325 mesh (represent that 44 can be less than by the mesh of 325 mesh, i.e. granularity micro-
Rice).In the present invention, the mass ratio of A granularities alumina, B granularities alumina and C granularity alumina is preferably (25~35)：(30~40)：
(10~15), more preferably (28~32)：(32~38)：(11~14), most preferably 30:35：(12~13).
In the present invention, the composition of the mullite is preferably：SiO2>=25.57%, Al2O3>=70.6%, Fe2O3≤
1.5%.In the present invention, the granularity of the mullite preferably≤(representing can be by the mesh of 200 mesh, i.e. granularity is small for 200 mesh
In 74 microns), more preferably≤325 mesh (represent that 44 microns can be less than by the mesh of 325 mesh, i.e. granularity).In the present invention
In, 1790 DEG C of the preferred ＞ of refractoriness of the mullite.The present invention to the source of the mullite without special limitation, can be by
Market purchase is obtained.
In the present invention, the silicon powder is preferably silicon ash.In the present invention, the composition of the silicon powder is preferably：
SiO2>=94.56%, Fe2O3≤ 1.5%, MgO≤0.96%, Na2O and K2O≤0.4%.The present invention comes to the silicon powder
Source does not have special limitation, can be bought and obtained by market.
In the present invention, the Al2O3Preferably α-Al2O3.In the present invention, the Al2O3The preferred ＞ 99% of purity.
The present invention is to the Al2O3Source without special limitation, can by market purchase acquisition.
In the present invention, in the metallic silicon silicone content preferably >=98%.In the present invention, the granularity of the metallic silicon is excellent
Elect≤200 mesh (representing that 74 microns can be less than by the mesh of 200 mesh, i.e. granularity) as.The present invention comes to the metallic silicon
Source does not have special limitation, can be bought and obtained by market.
In the present invention, the Silicon in Ferrosilicon content preferably >=65%.In the present invention, the granularity of the ferrosilicon is preferably
≤ 200 mesh (represent that 74 microns can be less than by the mesh of 200 mesh, i.e. granularity).The present invention does not have to the source of the ferrosilicon
Special limitation, can be bought by market and obtained.
In the present invention, the phosphate of the sodium is used as bonding agent.In the present invention, the phosphate of the sodium is preferred
For calgon or sodium tripolyphosphate.The present invention does not have special limitation to the phosphatic source of the sodium, can be by market
Purchase is obtained.
In the present invention, the alumina, mullite, silicon powder, metallic silicon, ferrosilicon, Al2O3With the phosphatic quality of sodium
Than being preferably (70~75)：(5~10)：(0.5~1.5)：(3~7)：(4~8)：(1~1.5)：(1.5~2), more preferably
(71~74)：(6~9)：(0.8~1.2)：(4~6)：(5~7)：(1.1~1.4)：(1.6~1.9), be most preferably (72~
73)：(7~8)：1：5：6：(1.2~1.3)：(1.7~1.8).
The invention provides a kind of preparation method of the refractory brick described in above-mentioned technical proposal, including：
By alumina, mullite, silicon powder, metallic silicon, ferrosilicon, Al2O3, sodium phosphate and water mixing, obtain compound；
Compound is carried out to dry after brickmaking, refractory brick is obtained.
In the present invention, the alumina, mullite, silicon powder, metallic silicon, ferrosilicon, Al2O3, sodium phosphate and they
Consumption it is consistent with above-mentioned technical proposal, will not be repeated here.
In the present invention, the preparation method of the compound is preferably：
By mullite, silicon powder, metallic silicon, ferrosilicon, Al2O3Mixed with the phosphate of sodium, obtain mixture；
Alumina and water are mixed, aggregate is obtained；
The mixture and aggregate are mixed, compound is obtained.
In the present invention, the mullite, silicon powder, metallic silicon, ferrosilicon, Al2O3Phosphatic mixing with sodium preferably exists
Mixed in premixing machine, the time of mixing is preferably 10~15 minutes.In the present invention, the alumina preferably kneads 2 in mud mill
Water wetting is added after~3 minutes, continues mixed grind 2~3 minutes.Abundant mixed grind 5~10 minutes in aggregate are added mixture to, are obtained
To compound.
Compound is carried out brickmaking by the present invention, brickmaking can be carried out in brick machine, brick machine is preferably more than 630 tons,
Then the preferred natural curing of the brick made is dried for more than 24 hours.In the present invention, the temperature of the drying is preferably
180~220 DEG C, more preferably 200 DEG C.In the present invention, the time of the drying is preferably more than 24 hours.
Al in the refractory brick that the present invention is provided2O3And SiO2Total content preferably >=90.68%.The fire resisting that the present invention is provided
Brick provides technical guarantee to climb the red lattice high-chromic vanadium-titanium ferroferrite vanadium chromium slag separation rotary kiln sodium roasting of steel exploitation, there is good
Economic benefit and social benefit.
Raw material used in following examples of the present invention is commercial goods, alumina provided for Guizhou bauxite company 85
The high grade bauxite of model；The commodity for the RS-M70 models that mullite provides for Henan sharp stone group company；Silicon ash is the grand space in Anyang
The commodity for 94 models that company provides；The commodity for 65 models that ferrosilicon powder provides for Anyang Hong Yu companies, the mesh (table of granularity≤200
74 microns can be less than by the mesh of 200 mesh, i.e. granularity by showing)；α-Al2O3There is provided for Kaifeng Te Nai companies；Metallic silicon is peace
The commodity for 98 models that Yang Hong spaces company provides, granularity is that (representing can be by the mesh of 200 mesh, i.e. granularity for the mesh of granularity≤200
Less than 74 microns).Alumina, mullite, silicon ash, α-Al2O3As shown in table 1, table 1 is in the present invention to the composition of metallic silicon and ferrosilicon
Fire resisting turns the physical and chemical index of raw material.
The physical and chemical index of refractory brick raw material in the present invention of table 1
Embodiment 1
Refractory brick material composition and consumption are：6~2mm of alumina 30wt%, 2~0mm of alumina 35wt%, alumina granularity are
The fine powder 15wt% of≤200 mesh (representing that 74 microns can be less than by the mesh of 200 mesh, i.e. granularity)；The mesh of mullite≤200
Fine powder 5wt%, silicon ash 1wt%, the ferrosilicon powder 5wt% of (representing that 74 microns can be less than by the mesh of 200 mesh, i.e. granularity),
α-Al2O3Micro mist 6wt%, metallic silicon 1wt%, calgon 2wt%, above-mentioned raw materials total amount are 100%.
By mullite, silicon ash, ferrosilicon powder, α-Al2O3Micro mist, metallic silicon and calgon put into premixing machine and mixed in proportion
After 10~15 minutes, it is standby to obtain mixed powder discharging, then by the high grade bauxite granulated aggregate mill of falling mud in proportion, kneads 2
Alumina quality 3~4wt% water is added after~3 minutes to soak aggregate, continues mixed grind 2~3 minutes, adds pre- mixed mix
Close the abundant mixed grind of powder to discharge for 5~10 minutes, carry out brickmaking using more than 630 tons brick machines, the brick natural curing 24 made is small
When more than, through 180~220 DEG C dry more than 24 hours selection dress bag, obtain refractory brick.
Using GB/T 6900-2006《Al-Si Refractory Materials chemical analysis method》The standard testing embodiment of the present invention 1
SiO in the refractory brick prepared2And Al2O3Gross mass；Using GB/T 2997-2000《Fine and close shaping refractory product volume
Density, apparent porosity and true porosity test method》The volume for the refractory brick that the standard testing embodiment of the present invention 1 is prepared is close
Degree；Using GB/T 5072-2008《Refractory material cold crushing strength test method》It is prepared by the standard testing embodiment of the present invention 1
The compressive resistance of obtained refractory brick；Using GB/T 5072-2008《Refractory material cold crushing strength test method》Standard
The reheating linear change rate on reheating for the refractory brick that the test embodiment of the present invention 1 is prepared；As shown in table 2, table 2 is the present invention to testing result
The physical and chemical index for the refractory brick that embodiment 1 is prepared.
The physical and chemical index for the refractory brick that the embodiment of the present invention 1 of table 2 is prepared
Embodiment 2
Refractory brick material composition and consumption are：6~2mm of alumina 30wt%, 2~0mm of alumina 35wt%, alumina granularity are
The fine powder 10wt% of≤200 mesh (representing that 74 microns can be less than by the mesh of 200 mesh, i.e. granularity)；The mesh of mullite≤200
Fine powder 10wt%, silicon ash 1wt%, the ferrosilicon powder 5wt% of (representing that 74 microns can be less than by the mesh of 200 mesh, i.e. granularity),
α-Al2O3Micro mist 6wt%, metallic silicon 1wt%, sodium tripolyphosphate 2wt%, above-mentioned raw materials total amount are 100%.
By mullite, silicon ash, ferrosilicon powder, α-Al2O3Micro mist, metallic silicon and sodium tripolyphosphate put into premixing machine and mixed in proportion
After 10~15 minutes, it is standby to obtain mixed powder discharging, then by the high grade bauxite granulated aggregate mill of falling mud in proportion, kneads 2
Alumina quality 3~4wt% water is added after~3 minutes to soak aggregate, continues mixed grind 2~3 minutes, adds pre- mixed mix
Close the abundant mixed grind of powder to discharge for 5~10 minutes, carry out brickmaking using more than 630 tons brick machines, the brick natural curing 24 made is small
When more than, through 180~220 DEG C dry more than 24 hours selection dress bag, obtain refractory brick.
Refractory brick composition, bulk density, compressive resistance and reheating line that method according to embodiment 1 is prepared to embodiment 2
Rate of change is detected that as shown in table 3, table 3 is that the physics and chemistry for the refractory brick that the embodiment of the present invention 2 is prepared refers to testing result
Mark.
The physical and chemical index for the refractory brick that the embodiment of the present invention 2 of table 3 is prepared
Embodiment 3
Refractory brick material composition and consumption are：6~2mm of alumina 30wt%, 2~0mm of alumina 35wt%, alumina granularity are
≤ 200 targeted fine powder 17wt%；Mullite≤200 targeted fine powder 8wt%, silicon ash 1wt%, ferrosilicon powder 5wt%, α-Al2O3Micro mist
6wt%, metallic silicon 1.5wt%, sodium tripolyphosphate 1.5wt%, above-mentioned raw materials total amount are 100%.
By mullite, silicon ash, ferrosilicon powder, α-Al2O3Micro mist, metallic silicon and sodium tripolyphosphate put into premixing machine and mixed in proportion
After 10~15 minutes, it is standby to obtain mixed powder discharging, then by the high grade bauxite granulated aggregate mill of falling mud in proportion, kneads 2
Alumina quality 3~4wt% water is added after~3 minutes to soak aggregate, continues mixed grind 2~3 minutes, adds pre- mixed mix
Close the abundant mixed grind of powder to discharge for 5~10 minutes, carry out brickmaking using more than 630 tons brick machines, the brick natural curing 24 made is small
When more than, through 180~220 DEG C dry more than 24 hours selection dress bag, obtain refractory brick.
Refractory brick composition, bulk density, compressive resistance and reheating line that method according to embodiment 1 is prepared to embodiment 3
Rate of change, as shown in table 4, table 4 is the physical and chemical index for the refractory brick that the embodiment of the present invention 3 is prepared to testing result.
The physical and chemical index for the refractory brick that the embodiment of the present invention 3 of table 4 is prepared
Embodiment 4
Refractory brick material composition and consumption are：6~2mm of alumina 30wt%, 2~0mm of alumina 35wt%, alumina granularity are
The fine powder 10wt% of≤200 mesh (representing that 74 microns can be less than by the mesh of 200 mesh, i.e. granularity)；The mesh of mullite≤200
Fine powder 10wt%, silicon ash 1wt%, the ferrosilicon powder 5wt% of (representing that 74 microns can be less than by the mesh of 200 mesh, i.e. granularity),
α-Al2O3Micro mist 6wt%, metallic silicon 1.5wt%, calgon 1.5wt%, above-mentioned raw materials total amount are 100%.
By mullite, silicon ash, ferrosilicon powder, α-Al2O3Micro mist, metallic silicon and calgon put into premixing machine and mixed in proportion
After 10~15 minutes, it is standby to obtain mixed powder discharging, then by the high grade bauxite granulated aggregate mill of falling mud in proportion, kneads 2
Alumina quality 3~4wt% water is added after~3 minutes to soak aggregate, continues mixed grind 2~3 minutes, adds pre- mixed mix
Close the abundant mixed grind of powder to discharge for 5~10 minutes, carry out brickmaking using more than 630 tons brick machines, the brick natural curing 24 made is small
When more than, through 180~220 DEG C dry more than 24 hours selection dress bag, obtain refractory brick.
Refractory brick composition, bulk density, compressive resistance and reheating line that method according to embodiment 1 is prepared to embodiment 4
Rate of change, as shown in table 5, table 5 is the physical and chemical index for the refractory brick that the embodiment of the present invention 4 is prepared to testing result.
The physical and chemical index for the refractory brick that the embodiment of the present invention 4 of table 5 is prepared
As seen from the above embodiment, the invention provides a kind of refractory brick, by alumina, mullite, silicon powder, metallic silicon,
Ferrosilicon, Al2O3Prepared with the phosphate of sodium.Compared with prior art, alumina, mullite in the refractory brick that the present invention is provided
And Al2O3There is preferable fire resistance Deng primary raw material, react relatively weak with sodium salt under the conditions of temperature in use, be difficult out
Existing transition sintering or burning；And contain metallic silicon and ferrosilicon in the refractory brick in the present invention, aoxidize at service temperatures,
Certain volumetric expansion can be produced, can offset partially due to sinter the contraction produced, under the comprehensive function of various raw materials, make this
Invent the refractory brick provided has less sintering shrinkage when being calcined vanadium chromium slag sodium.
Above-described is only the preferred embodiment of the present invention, it is noted that for the ordinary skill of the art
For personnel, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of refractory brick, by alumina, mullite, silicon powder, metallic silicon, ferrosilicon, Al2O3Prepared with the phosphate of sodium.
2. refractory brick according to claim 1, it is characterised in that the alumina, mullite, silicon powder, metallic silicon, silicon
Iron, Al2O3Phosphatic mass ratio with sodium is (70~75)：(5~10)：(0.5~1.5)：(3~7)：(4~8)：(1~
1.5)：(1.5~2).
3. refractory brick according to claim 1, it is characterised in that the granularity of the alumina is one kind or several in A, B and C
Kind, the mesh of 2 ＜ A ＜ 6mm, 0 ＜ B ＜ 2mm, C≤200.
4. refractory brick according to claim 3, it is characterised in that the matter of A granularities alumina, B granularities alumina and C granularity alumina
Amount is than being (25~35)：(30~40)：(10~15).
5. refractory brick according to claim 1, it is characterised in that the mesh of the granularity of the mullite≤200.
6. refractory brick according to claim 1, it is characterised in that the phosphate of the sodium includes calgon or trimerization
Sodium phosphate.
7. the preparation method of the refractory brick described in claim 1, including：
By alumina, mullite, silicon powder, metallic silicon, ferrosilicon, Al2O3, sodium phosphate and water mixing, obtain compound；
Compound is carried out to dry after brickmaking, refractory brick is obtained.
8. method according to claim 7, it is characterised in that the temperature of the drying is 180~220 DEG C.
9. according to the method described in claim 1, it is characterised in that the preparation method of the compound is：
By mullite, silicon powder, metallic silicon, ferrosilicon, Al2O3Mixed with the phosphate of sodium, obtain mixture；
Alumina and water are mixed, aggregate is obtained；
The mixture and aggregate are mixed, compound is obtained.
10. method according to claim 9, it is characterised in that the quality of the water is the 3~4% of alumina quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710364112.9A CN107140955A (en) | 2017-05-22 | 2017-05-22 | A kind of refractory brick and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710364112.9A CN107140955A (en) | 2017-05-22 | 2017-05-22 | A kind of refractory brick and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107140955A true CN107140955A (en) | 2017-09-08 |
Family
ID=59777847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710364112.9A Pending CN107140955A (en) | 2017-05-22 | 2017-05-22 | A kind of refractory brick and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107140955A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111393141A (en) * | 2020-03-26 | 2020-07-10 | 河北中科同创科技发展有限公司 | Iron tailing water permeable brick and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1458123A (en) * | 2003-05-21 | 2003-11-26 | 宜兴新威利成耐火材料有限公司 | Refractory material for circular fluidized bed boiler |
| CN101121609A (en) * | 2007-07-19 | 2008-02-13 | 张富财 | Baking-free hot-metal bottle lining brick |
| CN101774819A (en) * | 2010-02-24 | 2010-07-14 | 淄博嘉环耐火材料有限公司 | Zero creep low-aluminum mullite brick |
| CN103819206A (en) * | 2013-11-29 | 2014-05-28 | 浙江瑞泰耐火材料科技有限公司 | Zirconium mullite red brick and preparation technology thereof |
| CN104150925A (en) * | 2014-08-06 | 2014-11-19 | 郑州东方窑业工程有限公司 | Preparation method for abrasion resistant high-alumina brick of ferronickel rotary kiln |
-
2017
- 2017-05-22 CN CN201710364112.9A patent/CN107140955A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1458123A (en) * | 2003-05-21 | 2003-11-26 | 宜兴新威利成耐火材料有限公司 | Refractory material for circular fluidized bed boiler |
| CN101121609A (en) * | 2007-07-19 | 2008-02-13 | 张富财 | Baking-free hot-metal bottle lining brick |
| CN101774819A (en) * | 2010-02-24 | 2010-07-14 | 淄博嘉环耐火材料有限公司 | Zero creep low-aluminum mullite brick |
| CN103819206A (en) * | 2013-11-29 | 2014-05-28 | 浙江瑞泰耐火材料科技有限公司 | Zirconium mullite red brick and preparation technology thereof |
| CN104150925A (en) * | 2014-08-06 | 2014-11-19 | 郑州东方窑业工程有限公司 | Preparation method for abrasion resistant high-alumina brick of ferronickel rotary kiln |
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 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111393141A (en) * | 2020-03-26 | 2020-07-10 | 河北中科同创科技发展有限公司 | Iron tailing water permeable brick and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103936340B (en) | A kind of blue bricks modelled after an antique and preparation method thereof | |
| CN108840710A (en) | Utilize the method for lithium tailing and steel slag tailing production foamed ceramic building thermal insulation material | |
| CN109320219A (en) | A kind of high-performance aluminum chrome refractory and preparation method thereof and application | |
| CN104725058B (en) | Periclase-magnesium ferrum hercynite/forsterite composite brick | |
| CN102795843B (en) | High-strength anti-stripping wear-resistant ceramic paint and preparation method thereof | |
| CN104355638B (en) | A kind of refractory material, its preparation method and refractory brick | |
| CN102531649B (en) | Preparation method for periclase composite spinel brick used for cement kiln clinkering zone | |
| CN100457686C (en) | Semi-silica brick for 7.63-meter coke oven | |
| CN108069708A (en) | A kind of high thermal shock long-life saggar and preparation method | |
| CN103819211A (en) | Light wear-proof and fire-proof plastic mass for circulating fluidized bed boiler and preparation method of light wear-proof and fire-proof plastic mass | |
| CN102731123B (en) | High-alumina high-temperature fire-resistance casting material and preparation method thereof | |
| CN110256047A (en) | A method of foamed ceramic is prepared using titanium-containing blast furnace slag and shale waste residue | |
| CN104261848A (en) | Chrome-oxide-containing mullite brick and preparation method thereof | |
| CN106927799A (en) | A kind of special chromium mud of mineral hot furnace and preparation method | |
| CN102765949B (en) | Light-weight cordierite castable and preparation method thereof | |
| CN104030709B (en) | Heating furnace high-temperature nm radiation coating and preparation technology thereof | |
| CN106187241A (en) | Low creep high RUL refractory brick and its preparation method and application | |
| CN104944979A (en) | Preparation method of firebrick used for rotary kiln | |
| CN106396712A (en) | Castable for steel ladle heater burner and preparation method thereof | |
| CN107954710A (en) | A kind of carborundum combination titanium calcium aluminate multiple phase refractory material and preparation method thereof | |
| CN106045555B (en) | Ceramic pug and preparation method thereof | |
| CN103739302A (en) | Production process of high-temperature-resistant ceramic | |
| CN106316430A (en) | Synthetized forsterite castable and preparation method thereof | |
| CN107140955A (en) | A kind of refractory brick and preparation method thereof | |
| CN107935574A (en) | The complete low heat conduction liner of cement kiln tube body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170908 |
|
| RJ01 | Rejection of invention patent application after publication |