CN107840676A - A kind of cement kiln clinkering zone alkali resistant Mg-Al spinel brick and preparation method thereof - Google Patents

A kind of cement kiln clinkering zone alkali resistant Mg-Al spinel brick and preparation method thereof Download PDF

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CN107840676A
CN107840676A CN201711253667.2A CN201711253667A CN107840676A CN 107840676 A CN107840676 A CN 107840676A CN 201711253667 A CN201711253667 A CN 201711253667A CN 107840676 A CN107840676 A CN 107840676A
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preparation
spinel
average grain
grain diameter
cement kiln
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CN107840676B (en
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李春生
张强
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Liaoning Zhongmei New Materials Co.,Ltd.
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Wuhu Kai Kai Mstar Technology Ltd
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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
    • 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
    • C04B35/44—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 aluminates
    • C04B35/443—Magnesium aluminate spinel
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    • 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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    • 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
    • C04B2235/3225—Yttrium oxide or oxide-forming salts thereof
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    • 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
    • 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
    • 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
    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3852—Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
    • C04B2235/3873—Silicon nitrides, e.g. silicon carbonitride, silicon oxynitride
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    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • 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
    • C04B2235/444—Halide containing anions, e.g. bromide, iodate, chlorite
    • 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
    • C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts
    • C04B2235/9692—Acid, alkali or halogen resistance

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  • Ceramic Engineering (AREA)
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  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

The invention discloses a kind of cement kiln clinkering zone alkali resistant Mg-Al spinel brick and preparation method thereof, the preparation method includes：1）Magnesium aluminate spinel, pottery sand, silicon powder, urea, hydrazine hydrate, metal chloride and water are subjected to hydro-thermal reaction so that hydro-thermal reaction product is made；2）Bauxite, attapulgite, aluminium ore slag, carborundum, yittrium oxide, quartz sand, hydro-thermal reaction product, calcium lignosulfonate, sodium metasilicate, cyclodextrin and water are mixed, are aged so that compound is made；3）Compound is suppressed so that adobe is made；4）Adobe is dried, fired, is cooled down so that cement kiln clinkering zone alkali resistant Mg-Al spinel brick is made.The cement kiln clinkering zone alkali resistant Mg-Al spinel brick has excellent alkali resistance.

Description

A kind of cement kiln clinkering zone alkali resistant Mg-Al spinel brick and preparation method thereof
Technical field
The present invention relates to cement kiln clinkering zone alkali resistant Mg-Al spinel brick, in particular it relates to a kind of cement kiln clinkering zone With alkali resistant Mg-Al spinel brick and preparation method thereof.
Background technology
Cement rotary kiln experienced very long differentiation and evolution, at present cement industry kiln mainly by kilneye, descended Cross band, clinkering zone, lower intermediate zone and set of safety belts into；Because clinkering zone and the working environment of intermediate zone are more severe, so need Refractory brick is set on clinkering zone and the kiln wall of intermediate zone.Refractory brick in ideal needs to have the characteristics that：1）Excellent Hang kliner coating performance；2）High heat resistanceheat resistant chemical reaction ability；3）Excellent anti-slag ability；4）Excellent mechanical strength；5）Excellent heat Shake stability.
But often to having the resource reutilization of various industrial wastes and low-grade former combustion in existing cement rotary kiln The use of material, cement kiln is turned into the consumer of industrial refuse, made due to the burning of these discarded objects alkali in cement kiln, Chlorine, the increase of sulfur cycle amount, the erosion to refractory material can aggravate, and sheeting problems are more serious.
The content of the invention
It is an object of the invention to provide a kind of cement kiln clinkering zone alkali resistant Mg-Al spinel brick and preparation method thereof, the water Stall clinkering zone alkali resistant Mg-Al spinel brick has excellent alkali resistance, while the preparation method has process simple and original The advantages of material is easy to get.
To achieve these goals, the invention provides a kind of preparation of cement kiln clinkering zone alkali resistant Mg-Al spinel brick Method, the preparation method include：
1）Magnesium aluminate spinel, pottery sand, silicon powder, urea, hydrazine hydrate, metal chloride and water are subjected to hydro-thermal reaction so that hydro-thermal is made Reaction product；
2）By bauxite, attapulgite, aluminium ore slag, carborundum, yittrium oxide, quartz sand, hydro-thermal reaction product, lignin sulfonic acid Calcium, sodium metasilicate, cyclodextrin and water are mixed, are aged so that compound is made；
3）Compound is suppressed so that adobe is made；
4）Adobe is dried, fired, is cooled down so that cement kiln clinkering zone alkali resistant Mg-Al spinel brick is made；
Wherein, spinel particle A, the average grain diameter 0.32-0.45mm that magnesium aluminate spinel is 0.12-0.18mm by average grain diameter Spinel particle B and average grain diameter be 1.6-2.0mm spinel particle C according to 10：10-15：3-5 weight is than composition； The metal chloride is made up of nickel chloride, manganous chloride, molybdenum pentachloride, vanadium chloride and palladium bichloride.
Present invention also offers a kind of cement kiln clinkering zone alkali resistant Mg-Al spinel brick, the cement kiln clinkering zone alkali resistant Mg-Al spinel brick is prepared by upper preparation method.
Burnt till in cement kiln made from the combination that above-mentioned technical proposal, the present invention pass through each raw material and each operation Band alkali resistant Mg-Al spinel brick has an excellent alkali resistance, while the preparation method has process simple and raw material is easy to get Advantage.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Embodiment
The embodiment of the present invention is described in detail below.It is it should be appreciated that described herein specific Embodiment is merely to illustrate and explain the present invention, and is not intended to limit the invention.
The invention provides a kind of preparation method of cement kiln clinkering zone alkali resistant Mg-Al spinel brick, the preparation method bag Include：
1）Magnesium aluminate spinel, pottery sand, silicon powder, urea, hydrazine hydrate, metal chloride and water are subjected to hydro-thermal reaction so that hydro-thermal is made Reaction product；
2）By bauxite, attapulgite, aluminium ore slag, carborundum, yittrium oxide, quartz sand, hydro-thermal reaction product, lignin sulfonic acid Calcium, sodium metasilicate, cyclodextrin and water are mixed, are aged so that compound is made；
3）Compound is suppressed so that adobe is made；
4）Adobe is dried, fired, is cooled down so that cement kiln clinkering zone alkali resistant Mg-Al spinel brick is made；
Wherein, spinel particle A, the average grain diameter 0.32-0.45mm that magnesium aluminate spinel is 0.12-0.18mm by average grain diameter Spinel particle B and average grain diameter be 1.6-2.0mm spinel particle C according to 10：10-15：3-5 weight is than composition； The metal chloride is made up of nickel chloride, manganous chloride, molybdenum pentachloride, vanadium chloride and palladium bichloride.
In the step 1 of the present invention）In, the particle diameter of each material can select in wide scope, but in order that must be made Cement kiln clinkering zone there is more excellent alkali resistance with alkali resistant Mg-Al spinel brick, it is preferable that in step 1）In, pottery sand Average grain diameter is 0.11-0.16mm, and the average grain diameter of silicon powder is 0.10-0.25mm.
In the step 1 of the present invention）In, the dosage of each material can select in wide scope, but in order that must be made Cement kiln clinkering zone there is more excellent alkali resistance with alkali resistant Mg-Al spinel brick, it is preferable that the magnesium aluminate spinel, pottery Sand, silicon powder, urea, hydrazine hydrate, metal chloride, the weight ratio of water are 10：3.5-5：1.5-4：2-4：0.4-0.8：1-1.6： 50-100。
Wherein, in the metal chloride, the proportioning of each component can select in wide scope, but in order that system The cement kiln clinkering zone obtained has more excellent alkali resistance with alkali resistant Mg-Al spinel brick, it is preferable that in metal chloride, institute The weight ratio for stating nickel chloride, manganous chloride, molybdenum pentachloride, vanadium chloride and palladium bichloride is 5：0.8-1.4：2-4：0.3-0.6：1- 1.5。
In the step 1 of the present invention）In, the actual conditions of hydro-thermal reaction can select in wide scope, but in order that Obtain obtained cement kiln clinkering zone has more excellent alkali resistance with alkali resistant Mg-Al spinel brick, it is preferable that in step 1）In, The hydro-thermal reaction is：Material is first warming up to 140-160 DEG C with 2.5-3 DEG C/min from 15-35 DEG C and is incubated 1-2h, then with 0.4-0.9 DEG C/min is warming up to 180-200 DEG C and is incubated 8-10h.
In the step 2 of the present invention）In, the dosage of each material can select in wide scope, but in order that must be made Cement kiln clinkering zone there is more excellent alkali resistance with alkali resistant Mg-Al spinel brick, it is preferable that in step 2）In, aluminium alum Soil, attapulgite, aluminium ore slag, carborundum, yittrium oxide, quartz sand, hydro-thermal reaction product, calcium lignosulfonate, sodium metasilicate, ring paste The weight ratio of essence and water is 10：7-9：2-2.5：0.8-1.3：0.9-1.4：2-6：8-11：4-5：2-4：3.5-4.5：30-50.
In the step 2 of the present invention）In, the condition of mixing can select in wide scope, but in order that obtain obtained Cement kiln clinkering zone has more excellent alkali resistance with alkali resistant Mg-Al spinel brick, it is preferable that in step 2）In, mixing meets Following condition：Mixing temperature is 30-40 DEG C, incorporation time 40-60min.
In the step 2 of the present invention）In, the condition of ageing can select in wide scope, but in order that obtain obtained Cement kiln clinkering zone has more excellent alkali resistance with alkali resistant Mg-Al spinel brick, it is preferable that in step 2）In, ageing meets Following condition：Aging Temperature is 45-60 DEG C, digestion time 10-20h.
In the step 2 of the present invention）In, the particle diameter of each material can select in wide scope, but in order that must be made Cement kiln clinkering zone there is more excellent alkali resistance with alkali resistant Mg-Al spinel brick, it is preferable that in step 2）In, aluminium alum Soil, attapulgite, the average grain diameter of aluminium ore slag be each independently 1.1-1.5mm, and carborundum, yittrium oxide, quartz sand are averaged Particle diameter is each independently 2.5-3mm.
In the step 3 of the present invention）In, the condition of compacting can select in wide scope, but in order that obtain obtained Cement kiln clinkering zone has more excellent alkali resistance with alkali resistant Mg-Al spinel brick, it is preferable that in step 3）In, the mistake of compacting Cheng Wei：Compound is first suppressed into 20-30min under 20-25MPa, 40-60min is then suppressed under 40-60MPa, most after 10-15min is suppressed under 10-15MPa.
In the step 3 of the present invention）In, dry condition can select in wide scope, but in order that obtain obtained Cement kiln clinkering zone has more excellent alkali resistance with alkali resistant Mg-Al spinel brick, it is preferable that in step 4）In, dry and meet Following condition：Drying temperature is 125-140 DEG C, drying time 30-40h.
In the step 4 of the present invention）In, the condition of firing can select in wide scope, but in order that obtain obtained Cement kiln clinkering zone has more excellent alkali resistance with alkali resistant Mg-Al spinel brick, it is preferable that in step 4）In, fire and be： First it is warming up to 420-460 DEG C with 0.5-1 DEG C/min from 15-35 DEG C and is incubated 1-2h, is then warming up to 2.5-3 DEG C/min 1150-1200 DEG C and 3-5h is incubated, is finally warming up to 1680-1740 DEG C with 1-1.5 DEG C/min and is incubated 1-2h.
In the step 4 of the present invention）In, the mode of cooling can select in wide scope, but in order that obtain obtained Cement kiln clinkering zone has more excellent alkali resistance with alkali resistant Mg-Al spinel brick, it is preferable that cooling is using natural cooling Mode is carried out.
Present invention also offers a kind of cement kiln clinkering zone alkali resistant Mg-Al spinel brick, the cement kiln clinkering zone alkali resistant Mg-Al spinel brick is prepared by upper preparation method.
The present invention will be described in detail by way of examples below.
Embodiment 1
1）By magnesium aluminate spinel, pottery sand（Average grain diameter is 0.13mm）And silicon powder（Average grain diameter be 0.15mm）, urea, water Close hydrazine, metal chloride（By nickel chloride, manganous chloride, molybdenum pentachloride, vanadium chloride and palladium bichloride according to 5：1：3：0.5：1.3 weight Amount is than composition）, water is according to 10：4：3：3：0.6：1.3：80 weight is than carrying out hydro-thermal reaction（First by material from 25 DEG C with 2.8 DEG C/min is warming up to 150 DEG C and is incubated 1.5h, then it is warming up to 190 DEG C with 0.7 DEG C/min and is incubated 9h）So that hydro-thermal reaction is made Product；
2）By bauxite（Average grain diameter is 1.3mm）, attapulgite（Average grain diameter is 1.2mm）, aluminium ore slag（Average grain diameter is 1.4mm）, carborundum（Average grain diameter is 2.8mm）, yittrium oxide（Average grain diameter is 2.7mm）, quartz sand（Average grain diameter is 2.8mm）, hydro-thermal reaction product, calcium lignosulfonate, sodium metasilicate, cyclodextrin and the water is according to 10：8：2.2：1.1：1.2：4： 9：4.5：3：4：40 weight ratio is mixed（Mixing temperature is 35 DEG C, incorporation time 50min）, ageing（Aging Temperature is 50 DEG C, digestion time 15h）So that compound is made；
3）By the compound prior to suppressing 25min under 22MPa, 50min is then suppressed under 50MPa, is most pushed after 13MPa 14min processed is suppressed so that adobe is made；
4）The adobe is dried（Drying temperature is 130 DEG C, drying time 35h）, fire；Then by dried brick Base is first warming up to 440 DEG C with 0.8 DEG C/min from 25 DEG C and is incubated 1.5h, then is warming up to 1180 DEG C with 2.8 DEG C/min and is incubated 4h, Then 1700 DEG C are warming up to 1.3 DEG C/min and are incubated 1.5h；Finally cooling uses to be resisted so that the cement kiln clinkering zone is made and uses Alkali Mg-Al spinel brick A1；
Wherein, the point that the magnesium aluminate spinel is 0.16mm by average grain diameter spinel particle A, average grain diameter are 0.35mm is brilliant Stone particle B and average grain diameter are 1.8mm spinel particle C according to 10：13：4 weight is than composition.
Embodiment 2
1）By magnesium aluminate spinel, pottery sand（Average grain diameter is 0.11mm）And silicon powder（Average grain diameter be 0.10mm）, urea, water Close hydrazine, metal chloride（By nickel chloride, manganous chloride, molybdenum pentachloride, vanadium chloride and palladium bichloride according to 5：0.8：2：0.3：1 weight Amount is than composition）, water is according to 10：3.5：1.5：2：0.4：1：50 weight is than carrying out hydro-thermal reaction（First by material from 15 DEG C with 2.5 DEG C/min is warming up to 140 DEG C and is incubated 1h, then it is warming up to 180 DEG C with 0.4 DEG C/min and is incubated 8h）Produced so that hydro-thermal reaction is made Thing；
2）By bauxite（Average grain diameter is 1.1mm）, attapulgite（Average grain diameter is 1.1mm）, aluminium ore slag（Average grain diameter is 1.1mm）, carborundum（Average grain diameter is 2.5mm）, yittrium oxide（Average grain diameter is 2.5mm）, quartz sand（Average grain diameter is 2.5mm）, hydro-thermal reaction product, calcium lignosulfonate, sodium metasilicate, cyclodextrin and the water is according to 10：7：2：0.8：0.9：2：8： 4：2：3.5：30 weight ratio is mixed（Mixing temperature is 30 DEG C, incorporation time 40min）, ageing（Aging Temperature is 45 DEG C, digestion time 10h）So that compound is made；
3）By the compound prior to suppressing 20min under 20MPa, 40min is then suppressed under 40MPa, is most pushed after 10MPa 10min processed is suppressed so that adobe is made；
4）The adobe is dried（Drying temperature is 125 DEG C, drying time 30h）, fire；Then by dried brick Base is first warming up to 420 DEG C with 0.5 DEG C/min from 15 DEG C and is incubated 1h, then is warming up to 1150 DEG C with 2.5 DEG C/min and is incubated 3h, so 1680 DEG C are warming up to 1 DEG C/min and be incubated 1h afterwards；Finally cooling is used so that the cement kiln clinkering zone alkali resistant magnalium is made Spinel brick A2；
Wherein, the point that the magnesium aluminate spinel is 0.12mm by average grain diameter spinel particle A, average grain diameter are 0.32mm is brilliant Stone particle B and average grain diameter are 1.6mm spinel particle C according to 10：10：3 weight is than composition.
Embodiment 3
1）By magnesium aluminate spinel, pottery sand（Average grain diameter is 0.16mm）And silicon powder（Average grain diameter be 0.25mm）, urea, water Close hydrazine, metal chloride（By nickel chloride, manganous chloride, molybdenum pentachloride, vanadium chloride and palladium bichloride according to 5：1.4：4：0.6：1.5 Weight is than composition）, water is according to 10：5：4：4：0.8：1.6：100 weight is than carrying out hydro-thermal reaction（First by material from 35 DEG C with 3 DEG C/min is warming up to 160 DEG C and is incubated 2h, then it is warming up to 200 DEG C with 0.9 DEG C/min and is incubated 10h）So that hydro-thermal reaction is made Product；
2）By bauxite（Average grain diameter is 1.5mm）, attapulgite（Average grain diameter is 1.5mm）, aluminium ore slag（Average grain diameter is 1.5mm）, carborundum（Average grain diameter is 3mm）, yittrium oxide（Average grain diameter is 3mm）, quartz sand（Average grain diameter is 3mm）, it is described Hydro-thermal reaction product, calcium lignosulfonate, sodium metasilicate, cyclodextrin and water are according to 10：9：2.5：1.3：1.4：6：11：5：4：4.5： 30-50 weight ratio is mixed（Mixing temperature is 40 DEG C, incorporation time 60min）, ageing（Aging Temperature is 60 DEG C, old The change time is 20h）So that compound is made；
3）By the compound prior to suppressing 30min under 25MPa, 60min is then suppressed under 60MPa, is most pushed after 15MPa 15min processed is suppressed so that adobe is made；
4）The adobe is dried（Drying temperature is 140 DEG C, drying time 40h）, fire；Then by dried brick Base is first warming up to 460 DEG C with 1 DEG C/min from 35 DEG C and is incubated 2h, then is warming up to 1200 DEG C with 3 DEG C/min and is incubated 5h, then with 1.5 DEG C/min is warming up to 1740 DEG C and is incubated 2h；Finally cooling is used so that the cement kiln clinkering zone alkali resistant magnalium point is made Spar brick A3；
Wherein, the point that the magnesium aluminate spinel is 0.18mm by average grain diameter spinel particle A, average grain diameter are 0.45mm is brilliant Stone particle B and average grain diameter are 2.0mm spinel particle C according to 10：15：5 weight is than composition.
Comparative example 1
Method according to embodiment 1 carries out that cement kiln clinkering zone alkali resistant Mg-Al spinel brick B1 is made, unlike, step 1） Hydro-thermal reaction process is not carried out.
Comparative example 2
Method according to embodiment 1 carries out that cement kiln clinkering zone alkali resistant Mg-Al spinel brick B2 is made, unlike, step 1） Magnesium aluminate spinel is not used.
Comparative example 3
Method according to embodiment 1 carries out that cement kiln clinkering zone alkali resistant Mg-Al spinel brick B3 is made, unlike, step 1） Pottery sand is not used.
Comparative example 4
Method according to embodiment 1 carries out that cement kiln clinkering zone alkali resistant Mg-Al spinel brick B4 is made, unlike, step 1） Silicon powder is not used.
Detect example 1
The blind hole for being 5cm with the intermediate openings footpath of alkali resistant Mg-Al spinel brick in above-mentioned cement kiln clinkering zone, is then filled with hydrogen-oxygen Change potassium, calcium hydroxide, sodium hydroxide（Weight ratio is 1：3：1）, then by cement kiln clinkering zone with alkali resistant Mg-Al spinel brick in 500 10h is heat-treated at DEG C, is finally cut cement kiln clinkering zone alkali resistant Mg-Al spinel brick and the depth of erosion in counting, specifically It the results are shown in Table 1.
Table 1
Cement kiln clinkering zone alkali resistant Mg-Al spinel brick A1 A2 A3 B1 B2 B3 B4
Depth of erosion（mm） 1.1 1.5 1.4 16 10 5 9
The preferred embodiment of the present invention described in detail above, still, the present invention are not limited to the tool in above-mentioned embodiment Body details, in the range of the technology design of the present invention, a variety of simple variants can be carried out to technical scheme, these letters Monotropic type belongs to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally The thought of invention, it should equally be considered as content disclosed in this invention.

Claims (10)

  1. A kind of 1. preparation method of cement kiln clinkering zone alkali resistant Mg-Al spinel brick, it is characterised in that the preparation method bag Include：
    1）Magnesium aluminate spinel, pottery sand, silicon powder, urea, hydrazine hydrate, metal chloride and water are subjected to hydro-thermal reaction so that hydro-thermal is made Reaction product；
    2）By bauxite, attapulgite, aluminium ore slag, carborundum, yittrium oxide, quartz sand, the hydro-thermal reaction product, sulfomethylated lignin Sour calcium, sodium metasilicate, cyclodextrin and water are mixed, are aged so that compound is made；
    3）The compound is suppressed so that adobe is made；
    4）The adobe is dried, fired, is cooled down so that the cement kiln clinkering zone alkali resistant Mg-Al spinel brick is made；
    Wherein, spinel particle A, the average grain diameter 0.32- that the magnesium aluminate spinel is 0.12-0.18mm by average grain diameter 0.45mm spinel particle B and average grain diameter is 1.6-2.0mm spinel particle C according to 10：10-15：3-5 weight ratio Composition；The metal chloride is made up of nickel chloride, manganous chloride, molybdenum pentachloride, vanadium chloride and palladium bichloride.
  2. 2. preparation method according to claim 1, wherein, in step 1）In, the magnesium aluminate spinel, pottery sand, silicon powder, Urea, hydrazine hydrate, metal chloride, the weight ratio of water are 10：3.5-5：1.5-4：2-4：0.4-0.8：1-1.6：50-100；
    Preferably, in the metal chloride, the nickel chloride, manganous chloride, molybdenum pentachloride, the weight of vanadium chloride and palladium bichloride Than for 5：0.8-1.4：2-4：0.3-0.6：1-1.5；
    It is highly preferred that the average grain diameter of the pottery sand is 0.11-0.16mm, the average grain diameter of the silicon powder is 0.10- 0.25mm；
    It is further preferred that in step 1）In, the hydro-thermal reaction is：First material is heated up from 15-35 DEG C with 2.5-3 DEG C/min To 140-160 DEG C and 1-2h is incubated, then 180-200 DEG C is warming up to 0.4-0.9 DEG C/min and is incubated 8-10h.
  3. 3. preparation method according to claim 1 or 2, wherein, in step 2）In, the bauxite, attapulgite, aluminium ore Slag, carborundum, yittrium oxide, quartz sand, the hydro-thermal reaction product, calcium lignosulfonate, sodium metasilicate, the weight of cyclodextrin and water Than for 10：7-9：2-2.5：0.8-1.3：0.9-1.4：2-6：8-11：4-5：2-4：3.5-4.5：30-50.
  4. 4. preparation method according to claim 3, wherein, in step 2）In, the mixing meets following condition：Mixing temperature Spend for 30-40 DEG C, incorporation time 40-60min.
  5. 5. preparation method according to claim 3, wherein, in step 2）In, the ageing meets following condition：Ageing temperature Spend for 45-60 DEG C, digestion time 10-20h.
  6. 6. preparation method according to claim 3, wherein, in step 2）In, the bauxite, attapulgite, aluminium ore slag Average grain diameter be each independently 1.1-1.5mm, the carborundum, yittrium oxide, quartz sand average grain diameter independently of one another For 2.5-3mm.
  7. 7. the preparation method according to any one in claim 1-2,4-6, wherein, in step 3）In, the compacting Process is：The compound is first suppressed into 20-30min under 20-25MPa, 40-60min is then suppressed under 40-60MPa, most After suppressing 10-15min under 10-15MPa.
  8. 8. preparation method according to claim 7, wherein, in step 4）In, the drying meets following condition：Dry temperature Spend for 125-140 DEG C, drying time 30-40h.
  9. 9. preparation method according to claim 7, wherein, in step 4）In, the firing is：First from 15-35 DEG C with 0.5-1 DEG C/min is warming up to 420-460 DEG C and is incubated 1-2h, is then warming up to 1150-1200 DEG C with 2.5-3 DEG C/min and is incubated 3-5h, finally it is warming up to 1680-1740 DEG C with 1-1.5 DEG C/min and is incubated 1-2h；
    Preferably, the cooling is carried out by the way of natural cooling.
  10. A kind of 10. cement kiln clinkering zone alkali resistant Mg-Al spinel brick, it is characterised in that the cement kiln clinkering zone alkali resistant magnesium Alumina spinel brick is prepared by the preparation method described in any one in claim 1-9.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102211164A (en) * 2011-05-13 2011-10-12 无锡德乾能源设备有限公司 Application of refractory brick in casting field
WO2014104756A1 (en) * 2012-12-27 2014-07-03 재단법인 포항산업과학연구원 Nickel-based reforming catalyst for producing reduction gas for iron ore reduction and method for manufacturing same, reforming catalyst reaction and equipmemt for maximizing energy efficiency, and method for manufacturing reduction gas using same
US20160362340A1 (en) * 2013-05-16 2016-12-15 Bnz Materials, Inc. Refractory Castables with Hydrophobic Aggregates

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102211164A (en) * 2011-05-13 2011-10-12 无锡德乾能源设备有限公司 Application of refractory brick in casting field
WO2014104756A1 (en) * 2012-12-27 2014-07-03 재단법인 포항산업과학연구원 Nickel-based reforming catalyst for producing reduction gas for iron ore reduction and method for manufacturing same, reforming catalyst reaction and equipmemt for maximizing energy efficiency, and method for manufacturing reduction gas using same
US20160362340A1 (en) * 2013-05-16 2016-12-15 Bnz Materials, Inc. Refractory Castables with Hydrophobic Aggregates

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