CN106242598B - Inner liner of rotary kiln brick, liner composite brick and its manufacturing method - Google Patents
Inner liner of rotary kiln brick, liner composite brick and its manufacturing method Download PDFInfo
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- CN106242598B CN106242598B CN201610638357.1A CN201610638357A CN106242598B CN 106242598 B CN106242598 B CN 106242598B CN 201610638357 A CN201610638357 A CN 201610638357A CN 106242598 B CN106242598 B CN 106242598B
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- 239000011449 brick Substances 0.000 title claims abstract description 52
- 239000002131 composite material Substances 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052863 mullite Inorganic materials 0.000 claims abstract description 18
- 239000004927 clay Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 15
- 229910001570 bauxite Inorganic materials 0.000 claims abstract description 14
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 19
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 13
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 229910052593 corundum Inorganic materials 0.000 claims description 6
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 6
- 239000011324 bead Substances 0.000 claims description 5
- 238000007667 floating Methods 0.000 claims description 5
- 229910052681 coesite Inorganic materials 0.000 claims description 4
- 229910052906 cristobalite Inorganic materials 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052682 stishovite Inorganic materials 0.000 claims description 4
- 229910052905 tridymite Inorganic materials 0.000 claims description 4
- 230000035939 shock Effects 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract description 3
- 239000000843 powder Substances 0.000 abstract description 3
- 230000003628 erosive effect Effects 0.000 abstract description 2
- 239000003513 alkali Substances 0.000 description 5
- 235000013312 flour Nutrition 0.000 description 4
- 238000001354 calcination Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002585 base Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
-
- 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/135—Combustion residues, e.g. fly ash, incineration waste
- C04B33/1352—Fuel ashes, e.g. fly ash
-
- 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
- C04B35/185—Mullite 3Al2O3-2SiO2
-
- 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
-
- 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 specially adapted for 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
- C04B2235/3217—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
- C04B2235/34—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
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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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
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
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- C—CHEMISTRY; METALLURGY
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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
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
- C04B2235/9623—Ceramic setters properties
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses a kind of inner liner of rotary kiln brick, liner composite brick and its manufacturing method, inner liner of rotary kiln brick includes: 25% bauxite, 58% M45 mullite and 17% clay by mass percentage；The manufacturing method of inner liner of rotary kiln brick, comprising the following steps: 1) will be ground altogether after bauxite, clay mixing, 2) powder after total mill is sent into Wet wheel roller mixed grind etc. with M45 mullite；Inner liner of rotary kiln composite brick, the light layer including heavy layer and above heavy layer；The manufacturing method of inner liner of rotary kiln composite brick, comprising the following steps: 1) heavy layer material and lightweight layer material are respectively fed to Wet wheel roller mixed grind etc..The liner tile alkaline erosion performance of its acquisition of the present invention is good, and thermal shock resistance and wearability also have larger improvement, and life of product is significantly improved；And kiln shell temperature can be effectively reduced in liner tile obtained, reduce heat loss, reduce rotary kiln energy consumption, while can also mitigate inner liner of rotary kiln weight, be conducive to rotary kiln running.
Description
Technical field
The present invention relates to rotary kiln technology, in particular to the inner lining material and its manufacturing method of a kind of rotary kiln.
Background technique
Large-sized rotary kiln applies to industry because of the advantages that its yield is big, production is stablized, product calcining is uniform more and morely
In production, in addition to cement industry, active lime calcining, chromic salts roast, alkali-lime sinter process production aluminium oxide etc. are all using large size
Rotary kiln.
Inner liner of rotary kiln refractory material selects high-alumina brick mostly, in use due to by K2O、Na2O, the alkalinity such as CaO
Substance corrodes, and it is loose to will lead to brick body expansion；The defects of along with there are thermal shock resistances poor, the easy peeling abrasion of common high-alumina brick,
So that existing inner liner of rotary kiln clinkering zone service life is mostly at 6-8 months, and brick body liner is not available heat insulation layer, leads
Cause kiln shell temperature higher, heat loss is larger.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of inner liner of rotary kiln brick, liner composite brick and its manufacturing method, with
Existing large-sized rotary kiln high alumina brick lining is solved in use because alkali corrodes, thermal shock peeling causes service life short and kiln
The problem that shell temperature is high, heat loss is big.
Inner liner of rotary kiln brick of the present invention, include: by mass percentage 25% bauxite, 58% M45 mullite, with
And 17% clay.
The invention also discloses a kind of manufacturing methods of inner liner of rotary kiln brick, comprising the following steps:
1) it is ground altogether in flour mill after mixing bauxite and clay；
2) Wet wheel roller mixed grind will be added through powder made from flour mill and M45 mullite；
3) 630t press will be sent into through mixture made from Wet wheel roller mixed grind to suppress, inner liner of rotary kiln brick is made
Base；
4) adobe is put into tunnel oven, 8h is fired at 1410 DEG C, inner liner of rotary kiln brick is made.In inner liner of rotary kiln brick
It by mass percentage include: 25% bauxite, 58% M45 mullite and 17% clay.
The invention also discloses a kind of inner liner of rotary kiln composite bricks, the lightweight including heavy layer and above heavy layer
Layer, the heavy layer include: bauxite 25%, M45 mullite 58% and clay 17% by mass percentage, described light
Matter layer includes: floating bead 20%, light-weight mullite 60% and clay 20% by mass percentage.
Further, the faying face of the heavy layer and light layer is zigzag.
The invention also discloses a kind of manufacturing methods of inner liner of rotary kiln composite brick, comprising the following steps:
1) heavy layer material and lightweight layer material are respectively fed to Wet wheel roller mixed grind；
2) the resulting heavy layer material of mixed grind and lightweight layer material are sequentially placed into compacting tool set by specified amount, in 630T
The lower compacting of press effect obtains adobe；
3) adobe is put into kiln, 8h is fired at 1410 DEG C, inner liner of rotary kiln composite brick is made.
Beneficial effects of the present invention:
Inner liner of rotary kiln brick, liner composite brick and its manufacturing method of the present invention, the liner tile alkaline erosion performance obtained
It is substantially better than the high-alumina brick that current rotary kiln uses, thermal shock resistance and wearability also have larger improvement, and life of product has bright
It is aobvious to improve；And kiln shell temperature can be effectively reduced in liner composite brick obtained, reduce heat loss, reduce rotary kiln energy consumption, simultaneously
Inner liner of rotary kiln weight can also be mitigated, be conducive to rotary kiln running.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of inner liner of rotary kiln composite brick；
Fig. 2 is the schematic cross-sectional view in Fig. 1 along A-A.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Embodiment one: the present embodiment inner liner of rotary kiln brick, include: by mass percentage 25% bauxite, 58%
M45 mullite and 17% clay.
In the present embodiment, contain 54.8% Al by mass percentage, in the bauxite in heavy layer2O3And 2.46%
Fe2O3；Contain 45.4% Al in M45 mullite in heavy layer2O3And 1.03% Fe2O3；In clay in heavy layer
Containing 28.3% Al2O3And 1.43% Fe2O3。
Embodiment two: the manufacturing method of inner liner of rotary kiln brick in embodiment one, comprising the following steps:
1) it is ground altogether in flour mill after mixing bauxite and clay；
2) Wet wheel roller mixed grind will be added through powder made from flour mill and M45 mullite；
3) 630t press will be sent into through mixture made from Wet wheel roller mixed grind to suppress, inner liner of rotary kiln brick is made
Base；
4) adobe is put into tunnel oven, 8h is fired at 1410 DEG C, inner liner of rotary kiln brick is made；In inner liner of rotary kiln brick
It by mass percentage include: 25% bauxite, 58% M45 mullite and 17% clay.
Following table is the physical and chemical parameter using inner liner of rotary kiln brick made from manufacturing method in embodiment two:
The liner tile obtained in LZ-75 high-alumina brick, common brick and the embodiment two used on selection rotary kiln is done resistance to
Alkali comparative experiments, Na2S does alkaline etching agent, makees alkali resistance measurement using molten alkali crucible method, drills through φ 22mm respectively on three kinds of products
A certain amount of Na is added in the hole of × 25mm in hole2S, and 50mm × 50mm × 6mm lid is covered above, at the uniform velocity it is warming up to
1100 DEG C, 5h is kept the temperature, evaluates its alkaline resistance properties, experimental result such as following table after natural cooling.
Embodiment three: the present embodiment inner liner of rotary kiln composite brick, the light layer including heavy layer 1 and above heavy layer
2, the heavy layer includes: bauxite 25%, M45 mullite 58% and clay 17%, the lightweight by mass percentage
Layer includes: floating bead 20%, light-weight mullite 60% and clay 20% by mass percentage.
In the present embodiment, contain 54.8% Al by mass percentage, in the bauxite in heavy layer2O3And 2.46%
Fe2O3；Contain 45.4% Al in M45 mullite in heavy layer2O3And 1.03% Fe2O3；In clay in heavy layer
Containing 28.3% Al2O3And 1.43% Fe2O3。
In the present embodiment, by mass percentage, the light-weight mullite in light layer contains 65.8% Al2O3, 28.6%
SiO2And 2.3% Fe2O3；Floating bead in light layer contains 26.8% Al2O3, 63.7% SiO2And 3.5%
Fe2O3。
Further, the faying face of heavy layer described in the present embodiment and light layer is zigzag, and bond strength is higher.
Example IV: the manufacturing method of inner liner of rotary kiln composite brick in embodiment three, comprising the following steps:
1) heavy layer material and lightweight layer material are respectively fed to Wet wheel roller mixed grind；
2) the resulting heavy layer material of mixed grind and lightweight layer material are sequentially placed into compacting tool set by specified amount, in 630T
The lower compacting of press effect obtains adobe；
3) adobe is put into kiln, 8h is fired at 1410 DEG C, inner liner of rotary kiln composite brick is made.
The thermal conductivity of inner liner of rotary kiln composite brick its heavy layer obtained in example IV is 1.6w/m.k, light layer
Thermal conductivity is 0.851.6w/m.k；By the inner liner of rotary kiln composite brick in the present embodiment in 4.5m × 90m aluminium oxide and active stone
It is used on grey calcination rotary kiln, clinkering zone service life was by original high-alumina brick 8 months or so 16 months improved till now
More than, kiln shell temperature is reduced to 250 DEG C or so by original 300 DEG C or so, and cooling effect is obvious.
In summary it is found that inner liner of rotary kiln brick and liner composite brick in the embodiment of the present invention, alkali erosiveness can be bright
The aobvious high-alumina brick used better than current rotary kiln, thermal shock resistance and wearability also have larger improvement, and life of product has obviously
It improves；And kiln shell temperature can be effectively reduced in liner composite brick obtained, reduce heat loss, reduce rotary kiln energy consumption, simultaneously also
Inner liner of rotary kiln weight can be mitigated, be conducive to rotary kiln running.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (3)
1. a kind of inner liner of rotary kiln composite brick, it is characterised in that: the light layer including heavy layer and above heavy layer；It is described
Heavy layer by mass percentage, is made of bauxite 25%, M45 mullite 58% and clay 17%；The light layer presses matter
Percentages are measured, are made of floating bead 20%, light-weight mullite 60% and clay 20%；
By mass percentage, 54.8% Al is contained in the bauxite in heavy layer2O3And 2.46% Fe2O3；In heavy layer
Contain 45.4% Al in M45 mullite2O3And 1.03% Fe2O3；Contain 28.3% Al in clay in heavy layer2O3, and
1.43% Fe2O3；
By mass percentage, the light-weight mullite in light layer contains 65.8% Al2O3, 28.6% SiO2And 2.3%
Fe2O3；Floating bead in light layer contains 26.8% Al2O3, 63.7% SiO2And 3.5% Fe2O3。
2. inner liner of rotary kiln composite brick according to claim 1, it is characterised in that: the combination of the heavy layer and light layer
Face is zigzag.
3. the manufacturing method of inner liner of rotary kiln composite brick in a kind of claim 1, it is characterised in that: the following steps are included:
1) heavy layer material and lightweight layer material are respectively fed to Wet wheel roller mixed grind；
2) the resulting heavy layer material of mixed grind and lightweight layer material are sequentially placed into compacting tool set by specified amount, in 630T press
The lower compacting of effect obtains adobe；
3) adobe is put into kiln, 8h is fired at 1410 DEG C, inner liner of rotary kiln composite brick is made.
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| CN201610638357.1A CN106242598B (en) | 2016-08-05 | 2016-08-05 | Inner liner of rotary kiln brick, liner composite brick and its manufacturing method |
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| CN201610638357.1A CN106242598B (en) | 2016-08-05 | 2016-08-05 | Inner liner of rotary kiln brick, liner composite brick and its manufacturing method |
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| CN106242598B true CN106242598B (en) | 2019-05-17 |
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| CN109579539A (en) * | 2018-11-26 | 2019-04-05 | 山东耐材集团鲁耐窑业有限公司 | Aluminous fly-ash extracts alumina slurry calcination rotary kiln intermediate zone high-strength alkaline-resisting composite brick and preparation method thereof |
| CN113956054B (en) * | 2021-10-12 | 2023-10-20 | 佛山市天禄智能装备科技有限公司 | Heat-insulating refractory material for rotary kiln and preparation method thereof |
| CN115093230A (en) * | 2022-06-14 | 2022-09-23 | 山东华恩新材料科技有限公司 | Boron carbide bulletproof ceramic with radar stealth performance and preparation method thereof |
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| CN103234346A (en) * | 2013-05-10 | 2013-08-07 | 郑州瑞泰耐火科技有限公司 | Low-heat-conduction multi-layer mullite brick and preparation method thereof |
| 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 |
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2016
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|---|---|---|---|---|
| CN1693288A (en) * | 2005-05-12 | 2005-11-09 | 符宗德 | Mullite composite brick for basic rotary kiln |
| CN102235820A (en) * | 2011-07-26 | 2011-11-09 | 浙江大学 | Lining structure of rotary kiln |
| CN102659421A (en) * | 2012-03-31 | 2012-09-12 | 马钢(集团)控股有限公司 | Production method of mullite cast steel brick |
| CN102788497A (en) * | 2012-09-07 | 2012-11-21 | 厚波 | Special composite firebrick for rotary kiln and preparation method thereof |
| CN103058685A (en) * | 2013-01-25 | 2013-04-24 | 苏州罗卡节能科技有限公司 | Medium-density silicon mullite brick used for rotary kiln and preparation method thereof |
| CN103234346A (en) * | 2013-05-10 | 2013-08-07 | 郑州瑞泰耐火科技有限公司 | Low-heat-conduction multi-layer mullite brick and preparation method thereof |
| 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 |
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