CN107954738A - A kind of method that low heat conduction mullite insulating brick is quickly prepared based on foam method - Google Patents
A kind of method that low heat conduction mullite insulating brick is quickly prepared based on foam method Download PDFInfo
- Publication number
- CN107954738A CN107954738A CN201711078162.7A CN201711078162A CN107954738A CN 107954738 A CN107954738 A CN 107954738A CN 201711078162 A CN201711078162 A CN 201711078162A CN 107954738 A CN107954738 A CN 107954738A
- Authority
- CN
- China
- Prior art keywords
- mullite
- heat conduction
- powder
- low heat
- insulating brick
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
-
- 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
- C04B35/66—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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
-
- 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
-
- 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
- C04B2235/74—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
- C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses a kind of method that low heat conduction mullite insulating brick is quickly prepared based on foam method, with aluminum oxide fine powder, corundum fine powder, swelling agent, gel powder, clay, mullite powder and bonding agent are raw material, while add accelerator, water-reducing agent, the water auxiliary material of structural support agent sum, are mixed, add foaming agent to be uniformly mixed, finally calcining forms.Meanwhile the invention also discloses the low heat conduction mullite insulating brick that the above method is prepared.Preparation process of the present invention is simple, low, with short production cycle to environment non-hazardous, production cost.Prepared height heat conduction mullite insulating brick has the advantages that good heat-insulation effect, thermal shock resistance are high, service life is long, use scope is wide.
Description
Technical field
The invention belongs to fireclay insulating refractory technical field, and in particular to one kind quickly prepares low heat conduction not based on foam method
Carry out the method for stone matter insulating brick.
Background technology
The major issue of energy saving always metallurgy, machinery, chemical industry etc. big power consumer's urgent need to resolve of industrial furnace, using body
The lower light heat-insulating material of thermal conductivity factor is to solve the problems, such as one of this effective way as furnace lining.Light heat-insulating material is mainly
By reaching lightweight, heat-insulated effect in the method for material internal pore-creating, and the shape of stomata and distribution are to product in material
Thermal conductivity factor there is strong influence.Research shows, in the case that the porosity is identical in material, pore size is smaller, holds one's breath
Porosity is higher, and the heat insulation of material is better.
The mode of the stomata of insulating brick insulating fire brick introducing at present common are following three kinds：First, burnout substances method, utilizes
The mode of stomata is left after combustible combustion in the material to prepare light heat-insulating material, such as " a kind of coal ash light high temperature is not
Carry out stone refractory brick（CN201310123039.8）Patented technology, which is burnt by burnout substances such as polystyrene, sawdusts
Mode prepares lightweight thermal insulation brick.In place of the patented technology Shortcomings：（1）The burning of polystyrene, sawdust etc., to environment
It can damage；（2）Polystyrene, sawdust etc. are used as pore creating material, disperse in the feed there are inhomogeneities, while both rulers
Very little larger, the stomata of formation is mostly through hole, it is difficult to is used to prepare the refractory material of ultralow heat conduction.Second, porous material method,
This method is using natural porous raw material or be raw material by made hollow ball, is uniformly mixed with fine powder, bonding agent etc.
Afterwards, prepare light heat-insulating material after being molded, dry, burn till, as " it is a kind of prepare high-strength light alumina hollow ball ceramics
Preparation method "（CN200310122906.2）Patented technology, which prepares lightweight height using alumina hollow ball as aggregate
Strong oxdiative aluminium ceramics.But there is also following shortcoming：（1）Alumina hollow ball can consume a large amount of electric energy in preparation process；(2) gas
Hole aperture is big, the porosity is difficult to further reduce, thus its heat-proof quality is affected.Third, foam method, with stability is good, gas
Steep that size is small and uniform foam is template to reach pore-creating purpose, so that the superior refractory material of heat-proof quality is prepared, such as " one
Kind High-strength aluminum oxide light-weight heat insulation brick and preparation method thereof "（CN201310016464.7）Patented technology, the technology is with difference
The aluminum oxide fine powder of particle diameter is primary raw material, and it is high, good heat-insulation effect high-purity that intensity is prepared by the way of foaming agent is added
Alumina light-weight brick.But there is also two problems for the technical solution：（1）Although using microwave drying can rapid draing, it is right
Sample cracking is be easy to cause in large scale sample, the production of mass simultaneous metaplasia is more demanding to drying equipment, causes production cost big
Width improves；（2）Product green strength is extremely low, without high temperature drying, is not easy to carry；（3）Product strength is excessive, its thermal shock resistance
Difference, is not easy to process.
As the requirement to fire-resistant material heat insulation effect is higher and higher, foam method is equal because of the product pore structure that it is prepared
Even, aperture smaller, porosity of holding one's breath higher, have fabulous heat insulation, it has also become prepare a kind of hot topic side of fireclay insulating refractory
Method.But current foam method is there are product drying cycle length, and dry easily to crack, the problems such as green strength is low, it is extensive to restrict its
Among the production of fireclay insulating refractory.
The content of the invention
Goal of the invention：Present invention aims in view of the deficiencies of the prior art, there is provided a kind of technique is simply, to environment without danger
Evil, the low heat conduction mullite insulating fire brick preparation method that production cost is low, with short production cycle.
Another object of the present invention is to provide the good heat-insulation effect prepared with this method, thermal shock resistance height, using the longevity
The low heat conduction mullite insulating fire brick that life is long, use scope is wide.
Technical solution：In order to reach foregoing invention purpose, the present invention is specifically achieved like this：One kind is based on foam method
The method for quickly preparing low heat conduction mullite insulating brick, with the aluminum oxide fine powder of 10 ~ 25wt%, the corundum fine powder of 10 ~ 25wt%,
The swelling agent of 5 ~ 15wt%, the gel powder of 5 ~ 15wt%, the clay of 10 ~ 25wt%, the mullite powder of 10 ~ 25wt% and 5 ~ 15wt%'s
Bonding agent is raw material, the accelerator of the additional 0.1 ~ 2wt% of raw material, the water-reducing agent of 0.1 ~ 0.5wt%, 0.1 ~ 1wt% structural supports
Agent and the water of 20 ~ 35wt%, are pre-mixed 3 ~ 5 minutes, and premix is made；The foam of 400 ~ 1000ml/kg is added into premix again
Agent, is uniformly mixed, moulding by casting, is demoulded after conserving 1 ~ 5h at 25 ~ 50 DEG C, dry, and is burnt till under conditions of 1250 ~ 1600 DEG C
3 ~ 6 it is small when, you can quickly prepare low heat conduction mullite insulating brick.
Wherein, the aluminum oxide fine powder is one kind in commercial alumina fine powder, calcined alumina fine powder, its particle diameter is
0.074mm~0.147mm。
Wherein, the corundum fine powder be plate diamond spar, white fused alumina and Brown Alundum in one kind, its particle diameter for 0.074mm ~
0.147mm。
Wherein, the swelling agent be kyanite, andalusite and sillimanite in one kind, kyanite, andalusite and sillimanite
Granularity be 0.147mm ~ 0.282mm.
Wherein, the gel powder is one kind in alumina gel powder, aluminium Silica hydrogel powder and Silica hydrogel powder, its particle diameter is 5 μm.
Wherein, the clay be kaolin, bentonite, one kind in atlapulgite, its alumina content for 30 ~
40wt%.
Wherein, the mullite powder is calcined mullite powder, its alumina content is 71.8 in the ratio between silica content：28.2.
Wherein, the water-reducing agent subtracts for polycarboxylic acids dehydragent, inorganic salts water-reducing agent, sulfonic acid based water reducer and naphthalene system
One kind in aqua.
Wherein, the structural support agent is one kind in Ludox and Aluminum sol.
It is low according to prepared by above-mentioned any method that low heat conduction mullite insulating brick is quickly prepared based on foam method
Heat conduction mullite insulating brick.
The present invention is based on foam method, and making full use of foam method to prepare, product is uniform with gap structure, and aperture smaller, hold one's breath
On the basis of the features such as porosity higher, pass through reasonable, science raw material proportioning so that the product of production can be widely applied to work
Make temperature in 1000 ~ 1700 DEG C of industrial furnace；By introducing gel powder, clay and bonding agent so that product has fabulous
Green strength, easy to carry；By introducing mullite powder, the mode of " crystal seed induction " is utilized so that mullite turns in product
Change is more prone to, thoroughly, so as to reduce the firing temperature of product, plays energy-conserving action；By introducing accelerator so that product energy
It is enough to demould in the short period of time, is dry, it is very big to shorten the production cycle；By introducing structural support agent so that product exists
Structure is more uniform in forming process, the very big thermal shock resistance for improving product.
Beneficial effect：For the present invention compared with conventional art, preparation process is simple, low, raw to environment non-hazardous, production cost
It is short to produce the cycle.Prepared height heat conduction mullite insulating brick has good heat-insulation effect, thermal shock resistance height, service life
Long, the advantages that use scope is wide.
The bulk density of low heat conduction mullite insulating brick obtained by the present invention is 0.5 ~ 1.1g/cm3, thermal conductivity factor is
0.12 ~ 0.36w/ (m.K), compressive resistance reach 2.00 ~ 6.0MPa, and heating permanent line, which becomes, turns to -0.1 ~ -1.0%.
Embodiment
Embodiment 1：
With the aluminum oxide fine powder of 10wt%, the corundum fine powder of 25wt%, the swelling agent of 10wt%, the gel powder of 10wt%, 10wt%'s is glutinous
Soil, the mullite powder of 25wt% and the bonding agent of 10wt% are raw material, and the accelerator of the additional raw material 0.1wt%, 0.1wt% subtract
The water of aqua, the agent of 0.1wt% structural supports and 20wt%, is pre-mixed 3 ~ 5 minutes, and premix is made；400 are added into premix again
The foaming agent of ~ 1000ml/kg, is uniformly mixed, moulding by casting, is demoulded after conserving 1 ~ 5h at 25 ~ 50 DEG C, dry, and in 1250 ~
Burnt till under conditions of 1600 DEG C 3 ~ 6 it is small when, you can quickly prepare low heat conduction mullite insulating brick.
Wherein, the aluminum oxide fine powder is one kind in commercial alumina fine powder, calcined alumina fine powder, its particle diameter is
0.074mm~0.147mm；The corundum fine powder is one kind in plate diamond spar, white fused alumina and Brown Alundum, its particle diameter is 0.074mm
~0.14mm；The swelling agent be kyanite, andalusite and sillimanite in one kind, the granularity of kyanite, andalusite and sillimanite
For 0.147mm ~ 0.282mm；The gel powder be alumina gel powder, aluminium Silica hydrogel powder and Silica hydrogel powder in one kind, its particle diameter
For 5 μm；The clay is kaolin, one kind in bentonite, atlapulgite, its alumina content is 30 ~ 40wt%；It is described
Mullite powder is calcined mullite powder, its alumina content is 71.8 in the ratio between silica content：28.2；The water-reducing agent is
One kind in polycarboxylic acids dehydragent, inorganic salts water-reducing agent, sulfonic acid based water reducer and naphthalene water reducer；The structural support agent
For one kind in Ludox and Aluminum sol.
Embodiment 2：
With the aluminum oxide fine powder of 15wt%, the corundum fine powder of 20wt%, the swelling agent of 5wt%, the gel powder of 15wt%, 15wt%'s is glutinous
Soil, the mullite powder of 20wt% and the bonding agent of 10wt% are raw material, accelerator, the diminishing of 0.5wt% of the additional raw material 2wt%
The water of agent, the agent of 1wt% structural supports and 35wt%, is pre-mixed 3 ~ 5 minutes, and premix is made；Again into premix add 400 ~
The foaming agent of 1000ml/kg, is uniformly mixed, moulding by casting, is demoulded after conserving 1 ~ 5h at 25 ~ 50 DEG C, dry, and in 1250 ~
Burnt till under conditions of 1600 DEG C 3 ~ 6 it is small when, you can quickly prepare low heat conduction mullite insulating brick.
Wherein, the aluminum oxide fine powder is one kind in commercial alumina fine powder, calcined alumina fine powder, its particle diameter is
0.074mm~0.147mm；The corundum fine powder is one kind in plate diamond spar, white fused alumina and Brown Alundum, its particle diameter is 0.074mm
~0.14mm；The swelling agent be kyanite, andalusite and sillimanite in one kind, the granularity of kyanite, andalusite and sillimanite
For 0.147mm ~ 0.282mm；The gel powder be alumina gel powder, aluminium Silica hydrogel powder and Silica hydrogel powder in one kind, its particle diameter
For 5 μm；The clay is kaolin, one kind in bentonite, atlapulgite, its alumina content is 30 ~ 40wt%；It is described
Mullite powder is calcined mullite powder, its alumina content is 71.8 in the ratio between silica content：28.2；The water-reducing agent is
One kind in polycarboxylic acids dehydragent, inorganic salts water-reducing agent, sulfonic acid based water reducer and naphthalene water reducer；The structural support agent
For one kind in Ludox and Aluminum sol.
Embodiment 3：
With the aluminum oxide fine powder of 20wt%, the corundum fine powder of 15wt%, the swelling agent of 10wt%, the gel powder of 5wt%, 20wt%'s is glutinous
Soil, the mullite powder of 15wt% and the bonding agent of 15wt% are raw material, accelerator, the diminishing of 0.3wt% of the additional raw material 1wt%
The water of agent, the agent of 0.5wt% structural supports and 25wt%, is pre-mixed 3 ~ 5 minutes, and premix is made；Again into premix add 400 ~
The foaming agent of 1000ml/kg, is uniformly mixed, moulding by casting, is demoulded after conserving 1 ~ 5h at 25 ~ 50 DEG C, dry, and in 1250 ~
Burnt till under conditions of 1600 DEG C 3 ~ 6 it is small when, you can quickly prepare low heat conduction mullite insulating brick.
Wherein, the aluminum oxide fine powder is one kind in commercial alumina fine powder, calcined alumina fine powder, its particle diameter is
0.074mm~0.147mm；The corundum fine powder is one kind in plate diamond spar, white fused alumina and Brown Alundum, its particle diameter is 0.074mm
~0.14mm；The swelling agent be kyanite, andalusite and sillimanite in one kind, the granularity of kyanite, andalusite and sillimanite
For 0.147mm ~ 0.282mm；The gel powder be alumina gel powder, aluminium Silica hydrogel powder and Silica hydrogel powder in one kind, its particle diameter
For 5 μm；The clay is kaolin, one kind in bentonite, atlapulgite, its alumina content is 30 ~ 40wt%；It is described
Mullite powder is calcined mullite powder, its alumina content is 71.8 in the ratio between silica content：28.2；The water-reducing agent is
One kind in polycarboxylic acids dehydragent, inorganic salts water-reducing agent, sulfonic acid based water reducer and naphthalene water reducer；The structural support agent
For one kind in Ludox and Aluminum sol.
Embodiment 4：
With the aluminum oxide fine powder of 25wt%, the corundum fine powder of 10wt%, the swelling agent of 15wt%, the gel powder of 10wt%, 25wt%'s is glutinous
Soil, the mullite powder of 10wt% and the bonding agent of 5wt% are raw material, and the accelerator of the additional raw material 1.5wt%, 0.4wt% subtract
The water of aqua, the agent of 0.8wt% structural supports and 30wt%, is pre-mixed 3 ~ 5 minutes, and premix is made；400 are added into premix again
The foaming agent of ~ 1000ml/kg, is uniformly mixed, moulding by casting, is demoulded after conserving 1 ~ 5h at 25 ~ 50 DEG C, dry, and in 1250 ~
Burnt till under conditions of 1600 DEG C 3 ~ 6 it is small when, you can quickly prepare low heat conduction mullite insulating brick.
Wherein, the aluminum oxide fine powder is one kind in commercial alumina fine powder, calcined alumina fine powder, its particle diameter is
0.074mm~0.147mm；The corundum fine powder is one kind in plate diamond spar, white fused alumina and Brown Alundum, its particle diameter is 0.074mm
~0.14mm；The swelling agent be kyanite, andalusite and sillimanite in one kind, the granularity of kyanite, andalusite and sillimanite
For 0.147mm ~ 0.282mm；The gel powder be alumina gel powder, aluminium Silica hydrogel powder and Silica hydrogel powder in one kind, its particle diameter
For 5 μm；The clay is kaolin, one kind in bentonite, atlapulgite, its alumina content is 30 ~ 40wt%；It is described
Mullite powder is calcined mullite powder, its alumina content is 71.8 in the ratio between silica content：28.2；The water-reducing agent is
One kind in polycarboxylic acids dehydragent, inorganic salts water-reducing agent, sulfonic acid based water reducer and naphthalene water reducer；The structural support agent
For one kind in Ludox and Aluminum sol.
Claims (9)
- A kind of 1. method that low heat conduction mullite insulating brick is quickly prepared based on foam method, it is characterised in that with 10 ~ 25wt% Aluminum oxide fine powder, the corundum fine powder of 10 ~ 25wt%, the swelling agent of 5 ~ 15wt%, the gel powder of 5 ~ 15wt%, 10 ~ 25wt%'s is glutinous Soil, the mullite powder of 10 ~ 25wt% and the bonding agent of 5 ~ 15wt% are raw material, the accelerator of the additional 0.1 ~ 2wt% of raw material, 0.1 The water of the water-reducing agent of ~ 0.5wt%, the agent of 0.1 ~ 1wt% structural supports and 20 ~ 35wt%, is pre-mixed 3 ~ 5 minutes, and premix is made；Again The foaming agent of 400 ~ 1000ml/kg is added into premix, is uniformly mixed, moulding by casting, is taken off after conserving 1 ~ 5h at 25 ~ 50 DEG C Mould, it is dry, and burn till under conditions of 1250 ~ 1600 DEG C 3 ~ 6 it is small when, you can it is heat-insulated quickly to prepare low heat conduction mullite Brick.
- 2. the method according to claim 1 that low heat conduction mullite insulating brick is quickly prepared based on foam method, its feature Be, the one kind of the aluminum oxide fine powder for commercial alumina fine powder, in calcined alumina fine powder, its particle diameter for 0.074mm ~ 0.147mm。
- 3. the method according to claim 1 that low heat conduction mullite insulating brick is quickly prepared based on foam method, its feature It is, the corundum fine powder is one kind in plate diamond spar, white fused alumina and Brown Alundum, its particle diameter is 0.074mm ~ 0.147mm.
- 4. the method according to claim 1 that low heat conduction mullite insulating brick is quickly prepared based on foam method, its feature It is, the swelling agent is one kind in kyanite, andalusite and sillimanite, and the granularity of kyanite, andalusite and sillimanite is 0.147mm~0.282mm。
- 5. the method according to claim 1 that low heat conduction mullite insulating brick is quickly prepared based on foam method, its feature It is, the gel powder is one kind in alumina gel powder, aluminium Silica hydrogel powder and Silica hydrogel powder, its particle diameter is 5 μm.
- 6. the method according to claim 1 that low heat conduction mullite insulating brick is quickly prepared based on foam method, its feature It is, the clay is kaolin, one kind in bentonite, atlapulgite, its alumina content is 30 ~ 40wt%.The method according to claim 1 that low heat conduction mullite insulating brick is quickly prepared based on foam method, its feature are existed In the mullite powder is calcined mullite powder, its alumina content is 71.8 in the ratio between silica content：28.2.
- 7. the preparation method of High-strength aluminum oxide light-weight brick according to claim 1, it is characterised in that the water-reducing agent is One kind in polycarboxylic acids dehydragent, inorganic salts water-reducing agent, sulfonic acid based water reducer and naphthalene water reducer.
- 8. the method according to claim 1 that low heat conduction mullite insulating brick is quickly prepared based on foam method, its feature It is, the structural support agent is one kind in Ludox and Aluminum sol.
- 9. low heat conduction mullite insulating brick is quickly prepared based on foam method according to any one in claim 1 ~ 9 Method prepared by low heat conduction mullite insulating brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711078162.7A CN107954738A (en) | 2017-11-06 | 2017-11-06 | A kind of method that low heat conduction mullite insulating brick is quickly prepared based on foam method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711078162.7A CN107954738A (en) | 2017-11-06 | 2017-11-06 | A kind of method that low heat conduction mullite insulating brick is quickly prepared based on foam method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107954738A true CN107954738A (en) | 2018-04-24 |
Family
ID=61964483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711078162.7A Pending CN107954738A (en) | 2017-11-06 | 2017-11-06 | A kind of method that low heat conduction mullite insulating brick is quickly prepared based on foam method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107954738A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108675771A (en) * | 2018-05-16 | 2018-10-19 | 长沙中瓷新材料科技有限公司 | A kind of alumina hollow ball kiln brick |
| CN109437936A (en) * | 2018-12-26 | 2019-03-08 | 武汉如星科技有限公司 | A kind of prefabricated insulating brick of moulding by casting ladle |
| CN111943690A (en) * | 2020-08-17 | 2020-11-17 | 山西高速公路工程检测有限公司 | Mullite mixed powder, preparation method thereof and application thereof in 3D printing |
| CN112125685A (en) * | 2020-09-25 | 2020-12-25 | 南阳开元高温新材料有限公司 | Low-heat-conduction mullite light heat-insulating brick |
| CN113896546A (en) * | 2020-06-22 | 2022-01-07 | 河南中原特种耐火材料有限公司 | Light moisture-proof refractory material and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101618968A (en) * | 2009-08-11 | 2010-01-06 | 郑州东方炉衬材料有限公司 | Ultra-microporous lightweight insulated firebrick and manufacture method thereof |
| CN102659438A (en) * | 2012-05-30 | 2012-09-12 | 山国强 | Microporous lightweight mullite refractory aggregate and preparation method thereof |
| CN103011856A (en) * | 2012-12-14 | 2013-04-03 | 武汉科技大学 | Mullite light insulating brick and preparation method thereof |
-
2017
- 2017-11-06 CN CN201711078162.7A patent/CN107954738A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101618968A (en) * | 2009-08-11 | 2010-01-06 | 郑州东方炉衬材料有限公司 | Ultra-microporous lightweight insulated firebrick and manufacture method thereof |
| CN102659438A (en) * | 2012-05-30 | 2012-09-12 | 山国强 | Microporous lightweight mullite refractory aggregate and preparation method thereof |
| CN103011856A (en) * | 2012-12-14 | 2013-04-03 | 武汉科技大学 | Mullite light insulating brick and preparation method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108675771A (en) * | 2018-05-16 | 2018-10-19 | 长沙中瓷新材料科技有限公司 | A kind of alumina hollow ball kiln brick |
| CN109437936A (en) * | 2018-12-26 | 2019-03-08 | 武汉如星科技有限公司 | A kind of prefabricated insulating brick of moulding by casting ladle |
| CN109437936B (en) * | 2018-12-26 | 2021-11-26 | 武汉如星科技有限公司 | Prefabricated heat insulation brick for casting formed steel ladle |
| CN113896546A (en) * | 2020-06-22 | 2022-01-07 | 河南中原特种耐火材料有限公司 | Light moisture-proof refractory material and preparation method thereof |
| CN111943690A (en) * | 2020-08-17 | 2020-11-17 | 山西高速公路工程检测有限公司 | Mullite mixed powder, preparation method thereof and application thereof in 3D printing |
| CN111943690B (en) * | 2020-08-17 | 2022-09-23 | 山西高速公路工程检测有限公司 | Mullite mixed powder, preparation method thereof and application thereof in 3D printing |
| CN112125685A (en) * | 2020-09-25 | 2020-12-25 | 南阳开元高温新材料有限公司 | Low-heat-conduction mullite light heat-insulating brick |
| CN112125685B (en) * | 2020-09-25 | 2023-01-06 | 南阳开元高温新材料有限公司 | Low-heat-conduction mullite light heat-insulating brick |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107954738A (en) | A kind of method that low heat conduction mullite insulating brick is quickly prepared based on foam method | |
| WO2018006835A1 (en) | High temperature-resistant light-weight thermal-insulating material having duel porous structure and preparation method therefor | |
| CN102491766B (en) | Calciclase light heat-insulating refractory material and preparation method thereof | |
| CN103130524B (en) | Energy-saving light cordierite-mullite kiln furnace material, kiln furnace and preparation method of material | |
| CN103204692B (en) | Novel lightweight mullite brick and fabrication method thereof | |
| CN105481464A (en) | Porous refractory material and preparation method thereof | |
| CN100378027C (en) | Porous mullite ceramic materials and method for preparing same | |
| CN102167621B (en) | Aluminum oxide hollow sphere light insulating brick and preparation method thereof | |
| CN103242051A (en) | Lightweight corundum-mullite castable and preparation method thereof | |
| CN105272189A (en) | Microporous mullite ceramic separation membrane support and preparation method thereof | |
| CN108017379A (en) | A kind of aluminum oxide lightweight thermal insulation brick and preparation method thereof | |
| CN106518115A (en) | Refractory material and preparation method thereof | |
| CN105669163B (en) | The light high-strength haydite and its preparation process that a kind of nickel ground-slag is fired | |
| CN107973619A (en) | Mullite-anorthite-corundum complex phase micropore heat-barrier material and preparation method thereof | |
| CN101172832A (en) | Light high-strength unburned brick | |
| CN102050636A (en) | Basalt fiber reinforced porous ceramic product and method for preparing same by using coal ore | |
| CN101412631B (en) | Light-weight refractory brick | |
| CN102765950A (en) | Cordierite light fire brick and preparation method of cordierite light fire brick | |
| CN117142877B (en) | Preparation method of light silica brick and light silica brick obtained by preparation method | |
| CN108017397A (en) | Refractory brick containing quartz sand and preparation method thereof | |
| CN108002848A (en) | Refractory brick containing magnesium aluminate spinel and preparation method thereof | |
| CN104140233B (en) | A kind of low iron heat insulating casting material of 1200 DEG C of levels used for industrial furnace and preparation method | |
| CN102557579B (en) | Silica-based porous composite heat insulation material and preparation method thereof | |
| CN108002851A (en) | Refractory brick containing mullite and preparation method thereof | |
| CN109553424A (en) | A kind of fiber reinforced high-temperature-resistant lightweight alumina-silica foaming coating |
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: 20180424 |
|
| RJ01 | Rejection of invention patent application after publication |