CN106554194A - A kind of ceramsite sand rotary kiln liner and preparation method thereof - Google Patents

A kind of ceramsite sand rotary kiln liner and preparation method thereof Download PDF

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Publication number
CN106554194A
CN106554194A CN201611022189.XA CN201611022189A CN106554194A CN 106554194 A CN106554194 A CN 106554194A CN 201611022189 A CN201611022189 A CN 201611022189A CN 106554194 A CN106554194 A CN 106554194A
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rotary kiln
ceramsite sand
content
sand rotary
preparation
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Inventor
张寒
赵惠忠
李静捷
余俊
赵鹏达
陈建威
易萍
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Wuhan University of Science and Engineering WUSE
Wuhan University of Science and Technology WHUST
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Wuhan University of Science and Engineering WUSE
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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/28—Arrangements of linings
    • 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
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3206—Magnesium 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
    • C04B2235/32—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
    • 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
    • C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3227—Lanthanum oxide 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
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
    • 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
    • C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3272—Iron oxides or oxide forming salts thereof, e.g. hematite, magnetite
    • 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
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/77—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

Abstract

The present invention relates to a kind of ceramsite sand rotary kiln liner and preparation method thereof.Its technical scheme is：Brown Alundum granule with 60 ~ 65wt% as aggregate, with the ρ Al of the ferrotianium slag fine powder, the lanthanum sesquioxide micropowder of 1 ~ 3wt% and 1 ~ 4wt% of 30 ~ 35wt%2O3Micropowder is substrate material, and the aggregate is referred to as raw material with the substrate material sum.Dispensing is carried out by the composition and its content of the raw material, first the substrate material is mixed, then the substrate material after mixing is added in the aggregate, mix homogeneously；Then the TiO 2 sol of the additional 10 ~ 12wt% of raw material, stirs, vibration moulding, conserves 6 ~ 12 hours, be finally incubated 12 ~ 24h under the conditions of 90 ~ 110 DEG C, ceramsite sand rotary kiln liner is obtained under room temperature condition.The characteristics of present invention has with low cost and process is simple；The consistency of prepared ceramsite sand rotary kiln liner is high, cold conditions compressive resistance is big and good thermal shock stability.

Description

A kind of ceramsite sand rotary kiln liner and preparation method thereof
Technical field
The invention belongs to ceramsite sand rotary kiln technical field of refractory materials.Specifically related to a kind of ceramsite sand rotary kiln liner and Its preparation method.
Background technology
Ceramsite sand is ceramic granule, and outward appearance is spherical in shape or elliposoidal, can be divided into bauxite ceramsite sand, powder according to raw material sources Flyash haydite sand, clay ceramsite sand, Coal gangue pottery granule and solid waste ceramsite sand etc..Ceramsite sand has that light weight is heat-insulated, fire resistance is good With the low advantage of water absorption rate, it is widely used in the industrial circles such as building materials, chemical industry and refractory material.
The preparation of ceramsite sand is mainly burnt till by ceramsite sand rotary kiln（900~1300℃）.In ceramsite sand sintering process, ball Shape haydite produces relative slip with the rotation of rotary kiln kiln body, and then produces abrasion to ceramsite sand rotary kiln liner；Meanwhile, pottery Granule rotary kiln liner should also have good heat-proof quality, to reduce the skin temperature of ceramsite sand cylinder of rotary kiln, it is to avoid cylinder Body produces deformation and damages.
At present, ceramsite sand rotary kiln liner is mainly " high alumina refractories " and " high alumina-spinelle composite fire material Material ".
Using " high alumina refractories " as ceramsite sand rotary kiln liner, its refractoriness is high and elevated temperature strength is big, especially Wear resistance is good, but as the thermal coefficient of expansion of high alumina refractories is larger, causes its thermal shock resistance poor, be also easy to produce knot Structure is peeled off.
Using " high alumina-spinel composite fire-resistant material " as ceramsite sand rotary kiln liner, its high-temperature behavior is excellent, especially It is the introducing of spinelle or in-situ preparation can relaxes thermal stress inside refractory material, improves the thermal shock resistance of material；But by In introducing or the in-situ preparation of spinelle, cause material internal thermal coefficient of expansion unbalance, cause material internal micro-crack to increase, drop The low intensity of ceramsite sand rotary kiln liner.
The content of the invention
It is contemplated that overcoming prior art defect, it is therefore intended that provide the ceramsite sand of a kind of with low cost and process is simple The preparation method of rotary kiln liner, the consistency height of the ceramsite sand rotary kiln liner prepared with the method, cold conditions compressive resistance are big And good thermal shock stability.
For achieving the above object, the technical solution adopted in the present invention is：Brown Alundum granule with 60 ~ 65wt% as aggregate, With the ρ-Al of the ferrotianium slag fine powder, the lanthanum sesquioxide micropowder of 1 ~ 3wt% and 1 ~ 4wt% of 30 ~ 35wt%2O3Micropowder is substrate material, institute State aggregate and be referred to as raw material with the substrate material sum.
Dispensing is carried out by the composition and its content of the raw material, first the substrate material is mixed, then by the substrate after mixing During material adds the aggregate, mix homogeneously.Then the TiO 2 sol of the additional 10 ~ 12wt% of raw material, stirs, shakes Dynamic molding, conserves under room temperature condition 6 ~ 12 hours, is finally incubated 12 ~ 24h under the conditions of 90 ~ 110 DEG C, ceramsite sand rotary kiln is obtained Kiln lining.
The granularity of the Brown Alundum granule is 0.1 ~ 6mm；The Al of Brown Alundum granule2O3Content >=95wt%.
The ferrotianium slag is to smelt the slag produced by ferro-titanium, and the granularity of ferrotianium slag fine powder is 0.064 ~ 0.088mm； The main chemical compositions of ferrotianium slag fine powder are：Al2O3Content is 70 ~ 80wt%, TiO2Content be 9 ~ 13wt%, CaO content be 8 ~ 14wt%, Fe2O3Content≤1wt%.
The La of the lanthanum sesquioxide micropowder2O3Content >=98wt%；The granularity of lanthanum sesquioxide micropowder is 30 ~ 50 μm.
ρ-the Al2O3The Al of micropowder2O3Content >=98wt%；ρ-Al2O3The granularity of micropowder is 30 ~ 50 μm.
The TiO of the TiO 2 sol2Content is 20 ~ 30wt%.
There is following good effect compared with prior art due to taking above-mentioned technical proposal, the present invention：
1st, the present invention adopts ferrotianium slag for one of primary raw material, significantly reduces the development cost of ceramsite sand rotary kiln liner.
2nd, the present invention saves human resources without the need for special Preparation equipment and treatment technology, and technological process is simple.
3rd, the present invention reacts caused bulk effect by " solid solution-chemical combination " between material component, alleviates ceramsite sand and returns Thermal stress inside rotary kiln kiln lining, and then increase intensity, thermal shock resistance is improved.
Ceramsite sand rotary kiln laying-in prepared by the present invention is determined：1550 DEG C × 3h burn after bulk density be 3.35 ~ 3.40g·cm-3；After 1550 DEG C × 3h burns, cold conditions compressive resistance is 85 ~ 90MPa；The thermal shock resistance experiment of 1300 DEG C of water-cooleds Residual strength conservation rate is 91 ~ 96%.
Therefore, the characteristics of present invention has with low cost and process is simple；The cause of prepared ceramsite sand rotary kiln liner Density is high, cold conditions compressive resistance is big and good thermal shock stability.
Specific embodiment
With reference to specific embodiment, the invention will be further described, not the restriction to its protection domain.
To avoid repeating, now will be the raw material Unify legislation involved by this specific embodiment as follows, no longer go to live in the household of one's in-laws on getting married in embodiment State：
The granularity of the Brown Alundum granule is 0.1 ~ 6mm；The Al of Brown Alundum granule2O3Content >=95wt%.
The ferrotianium slag is to smelt the slag produced by ferro-titanium, and the granularity of ferrotianium slag fine powder is 0.064 ~ 0.088mm； The main chemical compositions of ferrotianium slag fine powder are：Al2O3Content is 70 ~ 80wt%, TiO2Content be 9 ~ 13wt%, CaO content be 8 ~ 14wt%, Fe2O3Content≤1wt%.
The La of the lanthanum sesquioxide micropowder2O3Content >=98wt%；The granularity of lanthanum sesquioxide micropowder is 30 ~ 50 μm.
ρ-the Al2O3The Al of micropowder2O3Content >=98wt%；ρ-Al2O3The granularity of micropowder is 30 ~ 50 μm.
The TiO of the TiO 2 sol2Content is 20 ~ 30wt%.
Embodiment 1
A kind of ceramsite sand rotary kiln liner and preparation method thereof.Described in the present embodiment, preparation method is：
Brown Alundum granule with 60 ~ 62wt% is as aggregate, micro- with the lanthanum sesquioxide of the ferrotianium slag fine powder of 33 ~ 35wt%, 1 ~ 2wt% ρ-the Al of powder and 1 ~ 3wt%2O3Micropowder is substrate material, and the aggregate is referred to as raw material with the substrate material sum.
Dispensing is carried out by the composition and its content of the raw material, first the substrate material is mixed, then by the substrate after mixing During material adds the aggregate, mix homogeneously.Then the TiO 2 sol of the additional 10 ~ 11wt% of raw material, stirs, shakes Dynamic molding, conserves under room temperature condition 6 ~ 12 hours, is finally incubated 12 ~ 24h under the conditions of 90 ~ 110 DEG C, ceramsite sand rotary kiln is obtained Kiln lining.
Ceramsite sand rotary kiln laying-in manufactured in the present embodiment is determined：1550 DEG C × 3h burn after bulk density be 3.35 ~ 3.37g·cm-3；After 1550 DEG C × 3h burns, cold conditions compressive resistance is 85 ~ 87MPa；The thermal shock resistance experiment of 1300 DEG C of water-cooleds Residual strength conservation rate is 91 ~ 93%.
Embodiment 2
A kind of ceramsite sand rotary kiln liner and preparation method thereof.Described in the present embodiment, preparation method is：
Brown Alundum granule with 61 ~ 63wt% is as aggregate, micro- with the lanthanum sesquioxide of the ferrotianium slag fine powder of 32 ~ 34wt%, 1 ~ 2wt% ρ-the Al of powder and 1 ~ 3wt%2O3Micropowder is substrate material, and the aggregate is referred to as raw material with the substrate material sum.
Dispensing is carried out by the composition and its content of the raw material, first the substrate material is mixed, then by the substrate after mixing During material adds the aggregate, mix homogeneously.Then the TiO 2 sol of the additional 10 ~ 11wt% of raw material, stirs, shakes Dynamic molding, conserves under room temperature condition 6 ~ 12 hours, is finally incubated 12 ~ 24h under the conditions of 90 ~ 110 DEG C, ceramsite sand rotary kiln is obtained Kiln lining.
Ceramsite sand rotary kiln laying-in manufactured in the present embodiment is determined：1550 DEG C × 3h burn after bulk density be 3.36 ~ 3.38g·cm-3；After 1550 DEG C × 3h burns, cold conditions compressive resistance is 86 ~ 88MPa；The thermal shock resistance experiment of 1300 DEG C of water-cooleds Residual strength conservation rate is 92 ~ 94%.
Embodiment 3
A kind of ceramsite sand rotary kiln liner and preparation method thereof.Described in the present embodiment, preparation method is：
Brown Alundum granule with 62 ~ 64wt% is as aggregate, micro- with the lanthanum sesquioxide of the ferrotianium slag fine powder of 31 ~ 33wt%, 2 ~ 3wt% ρ-the Al of powder and 2 ~ 4wt%2O3Micropowder is substrate material, and the aggregate is referred to as raw material with the substrate material sum.
Dispensing is carried out by the composition and its content of the raw material, first the substrate material is mixed, then by the substrate after mixing During material adds the aggregate, mix homogeneously.Then the TiO 2 sol of the additional 11 ~ 12wt% of raw material, stirs, shakes Dynamic molding, conserves under room temperature condition 6 ~ 12 hours, is finally incubated 12 ~ 24h under the conditions of 90 ~ 110 DEG C, ceramsite sand rotary kiln is obtained Kiln lining.
Ceramsite sand rotary kiln laying-in manufactured in the present embodiment is determined：1550 DEG C × 3h burn after bulk density be 3.37 ~ 3.39g·cm-3；After 1550 DEG C × 3h burns, cold conditions compressive resistance is 87 ~ 89MPa；The thermal shock resistance experiment of 1300 DEG C of water-cooleds Residual strength conservation rate is 93 ~ 95%.
Embodiment 4
A kind of ceramsite sand rotary kiln liner and preparation method thereof.Described in the present embodiment, preparation method is：
Brown Alundum granule with 63 ~ 65wt% is as aggregate, micro- with the lanthanum sesquioxide of the ferrotianium slag fine powder of 30 ~ 32wt%, 2 ~ 3wt% ρ-the Al of powder and 2 ~ 4wt%2O3Micropowder is substrate material, and the aggregate is referred to as raw material with the substrate material sum.
Dispensing is carried out by the composition and its content of the raw material, first the substrate material is mixed, then by the substrate after mixing During material adds the aggregate, mix homogeneously.Then the TiO 2 sol of the additional 11 ~ 12wt% of raw material, stirs, shakes Dynamic molding, conserves under room temperature condition 6 ~ 12 hours, is finally incubated 12 ~ 24h under the conditions of 90 ~ 110 DEG C, ceramsite sand rotary kiln is obtained Kiln lining.
Ceramsite sand rotary kiln laying-in manufactured in the present embodiment is determined：1550 DEG C × 3h burn after bulk density be 3.38 ~ 3.40g·cm-3；After 1550 DEG C × 3h burns, cold conditions compressive resistance is 88 ~ 90MPa；The thermal shock resistance experiment of 1300 DEG C of water-cooleds Residual strength conservation rate is 94 ~ 96%.
This specific embodiment has following good effect compared with prior art：
1st, this specific embodiment adopts ferrotianium slag for one of primary raw material, significantly reduces the exploitation of ceramsite sand rotary kiln liner Cost.
2nd, this specific embodiment saves human resources, technological process without the need for special Preparation equipment and treatment technology Simply.
3rd, this specific embodiment reacts caused bulk effect by " solid solution-chemical combination " between material component, alleviates Thermal stress inside ceramsite sand rotary kiln liner, and then increase intensity, thermal shock resistance is improved.
Ceramsite sand rotary kiln laying-in prepared by this specific embodiment is determined：After 1550 DEG C × 3h burns, bulk density is 3.35~3.40g·cm-3；After 1550 DEG C × 3h burns, cold conditions compressive resistance is 85 ~ 90MPa；Thermal shock resistance of 1300 DEG C of water-cooleds Experiment residual strength conservation rate is 91 ~ 96%.
Therefore, the characteristics of this specific embodiment has with low cost and process is simple；Prepared ceramsite sand rotary kiln The consistency of kiln lining is high, cold conditions compressive resistance is big and good thermal shock stability.

Claims (7)

1. a kind of preparation method of ceramsite sand rotary kiln liner, it is characterised in that the Brown Alundum granule with 60 ~ 65wt% as aggregate, With the ρ-Al of the ferrotianium slag fine powder, the lanthanum sesquioxide micropowder of 1 ~ 3wt% and 1 ~ 4wt% of 30 ~ 35wt%2O3Micropowder is substrate material, institute State aggregate and be referred to as raw material with the substrate material sum；
Dispensing is carried out by the composition and its content of the raw material, first the substrate material is mixed, then the substrate material after mixing is added Enter in the aggregate, mix homogeneously；Then the TiO 2 sol of the additional 10 ~ 12wt% of raw material, stirs, vibrates into Type, conserves under room temperature condition 6 ~ 12 hours, is finally incubated 12 ~ 24h under the conditions of 90 ~ 110 DEG C, ceramsite sand rotary kiln is obtained Lining.
2. the preparation method of ceramsite sand rotary kiln liner according to claim 1, it is characterised in that the Brown Alundum granule Granularity be 0.1 ~ 6mm；The Al of Brown Alundum granule2O3Content >=95wt%.
3. the preparation method of ceramsite sand rotary kiln liner according to claim 1, it is characterised in that the ferrotianium slag is smelting Slag produced by refining ferro-titanium, the granularity of ferrotianium slag fine powder is 0.064 ~ 0.088mm；The primary chemical of ferrotianium slag fine powder into Dividing is：Al2O3Content is 70 ~ 80wt%, TiO2Content is 9 ~ 13wt%, and CaO content is 8 ~ 14wt%, Fe2O3Content≤1wt%.
4. the preparation method of ceramsite sand rotary kiln liner according to claim 1, it is characterised in that the lanthanum sesquioxide The La of micropowder2O3Content >=98wt%；The granularity of lanthanum sesquioxide micropowder is 30 ~ 50 μm.
5. the preparation method of ceramsite sand rotary kiln liner according to claim 1, it is characterised in that the ρ-Al2O3Micropowder Al2O3Content >=98wt%；ρ-Al2O3The granularity of micropowder is 30 ~ 50 μm.
6. the preparation method of ceramsite sand rotary kiln liner according to claim 1, it is characterised in that the titanium dioxide is molten The TiO of glue2Content is 20 ~ 30wt%.
7. a kind of ceramsite sand rotary kiln liner, it is characterised in that the ceramsite sand rotary kiln liner is according to claim 1 ~ 6 Any one of ceramsite sand rotary kiln liner preparation method prepared by ceramsite sand rotary kiln liner.
CN201611022189.XA 2016-11-21 2016-11-21 A kind of ceramsite sand rotary kiln liner and preparation method thereof Pending CN106554194A (en)

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CN101857448A (en) * 2010-06-03 2010-10-13 安吉科灵磁性材料有限公司 Titanium dioxide sol reinforced corundum-mullite product and production method thereof
CN104926325A (en) * 2015-06-09 2015-09-23 武汉科技大学 Ladle bottom castable and preparation method thereof
CN105237003A (en) * 2015-10-20 2016-01-13 长兴宏泰耐火器材有限公司 Method for producing environmentally friendly high-temperature fold-resistant high-strength high purity corundum bricks

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