CN108440005A - Light thermal-shield refractory castable - Google Patents
Light thermal-shield refractory castable Download PDFInfo
- Publication number
- CN108440005A CN108440005A CN201810640009.7A CN201810640009A CN108440005A CN 108440005 A CN108440005 A CN 108440005A CN 201810640009 A CN201810640009 A CN 201810640009A CN 108440005 A CN108440005 A CN 108440005A
- Authority
- CN
- China
- Prior art keywords
- parts
- flyash
- magnesium carbonate
- mullite
- hollow ball
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
-
- 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
- C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
-
- 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
- C04B38/02—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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/52—Constituents or additives characterised by their shapes
- C04B2235/528—Spheres
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Ceramic Products (AREA)
Abstract
A kind of light thermal-shield refractory castable, is made of following raw material：Flyash, mullite, alumina hollow ball, alumina powder, magnesium carbonate；The parts by weight of above-mentioned raw materials are：10~20 parts of flyash, 20~30 parts of mullite, 10~20 parts of alumina hollow ball, 30~40 parts of alumina powder, 20~30 parts of magnesium carbonate.Mullite, alumina hollow ball are aggregate, and flyash, alumina powder, magnesium carbonate are matrix.
Description
Technical field
The invention belongs to technical field of refractory materials more particularly to a kind of light thermal-shield refractory castables.
Background technology
Compared with qualitative refractory product, short with technological process as the unshape refractory of representative using castable refractory,
Energy consumption and the advantages such as at low cost, easy to use, applied widely, globality and using effect are good, thus in world wide
It is inside rapidly developed, shared proportion is higher and higher in entire refractory material.It is advanced in some refractory technologies
Country in, the yield of unshape refractory is already close to the yield for being even more than setting product.For example, current Japan is not
The ratio that amorphous refractory yield accounts for entire refractory material has reached 60% or so；The U.S. is 50% or so；English, moral, method
Equal states are 40%~50%.Nowadays, castable refractory has been widely used in the industry neck such as metallurgy, building materials, electric power, chemical industry
In the high-temperature service in domain, the castable refractory of various materials has been widely applied.
Light thermal-shield refractory castable refers to low thermal conductivity and the castable refractory of low heat capacity, and also referred to as thermal insulation fire-resistant pours
Material feeding.Insulating refractory casting material obtains lower thermal conductivity, the in general stomata of material mainly by way of introducing stomata
Rate is higher, and its thermal conductivity is lower, and also lower heat insulation is better for the thermal conductivity of the smaller material in aperture of stomata.Fireclay insulating refractory
There is extensive purposes reducing the energy consumption of high-temperature service, meeting in high temperature special process requirement.Existing method prepares light
The problem of matter insulating refractory casting material is：First, the porosity is not high, the main source of stomata is aglite in castable refractory,
Preparing the porosity of lightening casting material generally can all be less than the porosity of aglite, thus cannot achieve lightening casting material
High porosity；Second is that the porosity of castable is higher but aperture is larger, and for porous material, the smaller lightweight of bore dia
The intensity of material is high, and thermal conductivity is low, this is because the quantity of stomata is just more in the small material of bore dia, contributes to subtract at high temperature
Few convection of heat and radiation are to reduce the thermal conductivity of castable.
Invention content
In view of this, in view of the deficiencies of the prior art, a kind of bulk density of present invention offer is small, thermal conductivity is low, thermal insulation
It can light thermal-shield refractory castable good, after liner body molding without maintenance.
A kind of light thermal-shield refractory castable, is made of following raw material：Flyash, mullite, alumina hollow ball, oxidation
Aluminium micro mist, magnesium carbonate；The parts by weight of above-mentioned raw materials are：10~20 parts of flyash, 20~30 parts of mullite, alumina hollow ball
10~20 parts, 30~40 parts of alumina powder, 20~30 parts of magnesium carbonate.Mullite, alumina hollow ball be aggregate, flyash,
Alumina powder, magnesium carbonate are matrix.
In conclusion compared with prior art, the present invention the alumina hollow ball in aggregate has special surface texture
And boring, surface irregularity, increase contact specific surface area so that aggregate and alumina powder, magnesium carbonate, powder in matrix
Coal ash is firmly combined with, and not only improves fire resistance, but also increases the intensity and heat insulation effect of material, under magnesium carbonate hot environment
It decomposes and generates carbon dioxide, magnesia, carbon dioxide can increase the porosity of light thermal-shield refractory castable, and aluminium oxide is micro-
The thermal shock resistance that magnesium aluminate spinel ensures light thermal-shield refractory castable is generated under powder, magnesia hot environment.
Specific implementation mode
With reference to embodiment, invention is further described in detail.This specific embodiment is only the solution to the present invention
It releases, is not the limitation to invention, those skilled in the art can be as needed to this implementation after reading this specification
Example makes any modification, but as long as all being protected by Patent Law in scope of the presently claimed invention.
Embodiment 1
A kind of light thermal-shield refractory castable, is made of following raw material：Flyash, mullite, alumina hollow ball, oxidation
Aluminium micro mist, magnesium carbonate；The parts by weight of above-mentioned raw materials are：10 parts of flyash, 30 parts of mullite, 10 parts of alumina hollow ball, oxygen
Change 40 parts of aluminium micro mist, 20 parts of magnesium carbonate.Mullite, alumina hollow ball are aggregate, and flyash, alumina powder, magnesium carbonate are
Matrix.
Embodiment 2
A kind of light thermal-shield refractory castable, is made of following raw material：Flyash, mullite, alumina hollow ball, oxidation
Aluminium micro mist, magnesium carbonate；The parts by weight of above-mentioned raw materials are：20 parts of flyash, 20 parts of mullite, 20 parts of alumina hollow ball, oxygen
Change 30 parts of aluminium micro mist, 30 parts of magnesium carbonate.Mullite, alumina hollow ball are aggregate, and flyash, alumina powder, magnesium carbonate are
Matrix.
Alumina hollow ball in the aggregate of above-mentioned thermal insulation fire-resistant pouring material has special surface texture and boring,
Surface irregularity increases contact specific surface area so that aggregate is combined jail with alumina powder, magnesium carbonate, flyash in matrix
Gu not only improving fire resistance, but also the intensity and heat insulation effect of material are increased, is decomposed under magnesium carbonate hot environment and generate two
Carbonoxide, magnesia, carbon dioxide can increase the porosity of light thermal-shield refractory castable, and alumina powder, magnesia are high
The thermal shock resistance that magnesium aluminate spinel ensures light thermal-shield refractory castable is generated under warm environment.
Claims (3)
1. a kind of light thermal-shield refractory castable, it is characterised in that：It is made of following raw material：Flyash, mullite, aluminium oxide are empty
Bulbus cordis, alumina powder, magnesium carbonate；The parts by weight of above-mentioned raw materials are：10~20 parts of flyash, 20~30 parts of mullite, oxygen
Change 10~20 parts of aluminium hollow ball, 30~40 parts of alumina powder, 20~30 parts of magnesium carbonate；Mullite, alumina hollow ball are bone
Material, flyash, alumina powder, magnesium carbonate are matrix.
2. light thermal-shield refractory castable according to claim 1, it is characterised in that：The parts by weight of above-mentioned raw materials are：
10 parts of flyash, 30 parts of mullite, 10 parts of alumina hollow ball, 40 parts of alumina powder, 20 parts of magnesium carbonate.
3. light thermal-shield refractory castable according to claim 1, it is characterised in that：The parts by weight of above-mentioned raw materials are：
20 parts of flyash, 20 parts of mullite, 20 parts of alumina hollow ball, 30 parts of alumina powder, 30 parts of magnesium carbonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810640009.7A CN108440005A (en) | 2018-06-21 | 2018-06-21 | Light thermal-shield refractory castable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810640009.7A CN108440005A (en) | 2018-06-21 | 2018-06-21 | Light thermal-shield refractory castable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108440005A true CN108440005A (en) | 2018-08-24 |
Family
ID=63206577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810640009.7A Withdrawn CN108440005A (en) | 2018-06-21 | 2018-06-21 | Light thermal-shield refractory castable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108440005A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113213963A (en) * | 2021-06-26 | 2021-08-06 | 江西陶瓷工艺美术职业技术学院 | Light refractory material prepared from construction waste and preparation method thereof |
-
2018
- 2018-06-21 CN CN201810640009.7A patent/CN108440005A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113213963A (en) * | 2021-06-26 | 2021-08-06 | 江西陶瓷工艺美术职业技术学院 | Light refractory material prepared from construction waste and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102815951B (en) | Flame-resistant corrosion-resistant coating | |
| CN102795870B (en) | Light-weight magnesia brick and preparation method thereof | |
| CN101734937A (en) | Lightweight spinel refractory bricks and preparation method thereof | |
| CN102718514A (en) | Micropore high-strength corundum-calcium hexaluminate composite refractory raw material and preparation method thereof | |
| CN103408297A (en) | Calcium hexaluminate-mullite composite material and preparation method thereof | |
| CN105801133A (en) | Light-weight and heat-insulation brick | |
| CN101638315B (en) | Ceramic plate composite and preparation method thereof | |
| CN108558376A (en) | A kind of low heat conduction high-strength fireproof pour material | |
| CN105801064A (en) | Production technology of light-weight and heat-insulation brick | |
| CN105503216B (en) | A kind of preparation method of high-strength light alumina hollow ball product | |
| CN104860687A (en) | Corundum slag-aluminum profile plant industrial sludge refractory castable | |
| CN105481375A (en) | Energy-saving and fire-resistant material | |
| CN108440005A (en) | Light thermal-shield refractory castable | |
| CN106336227B (en) | A kind of mineral products waste refractory material and its preparation process | |
| CN104446524B (en) | Heat barrier and heat radiation complex function based aluminum oxide pouring material for saving energy in high-temperature environment | |
| CN103408312B (en) | Aluminum-silicon-based lightweight castable and preparation method thereof | |
| CN109809803A (en) | A kind of fish torpedo ladle permanent layer coating | |
| CN105418095B (en) | A kind of lightweight refractory for glass smelting kiln of low heat conduction | |
| CN105565828A (en) | Lightweight high-strength thermal-insulation fireproof casting material | |
| CN108002851A (en) | Refractory brick containing mullite and preparation method thereof | |
| CN102589292B (en) | Magnesium-titanium three-layer composite brick and production method thereof | |
| CN101838150A (en) | Siliceous mullite brick | |
| CN104291845B (en) | Insulating refractory casting material containing magnesium carbonate | |
| CN108395262A (en) | A kind of olivine combination magnesium aluminate spinel hollow ball castable and preparation method | |
| CN207197264U (en) | A kind of electrical kiln refractory brick of light thermal-insulation |
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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180824 |