CN109336567A - A kind of castable refractory - Google Patents
A kind of castable refractory Download PDFInfo
- Publication number
- CN109336567A CN109336567A CN201811334267.9A CN201811334267A CN109336567A CN 109336567 A CN109336567 A CN 109336567A CN 201811334267 A CN201811334267 A CN 201811334267A CN 109336567 A CN109336567 A CN 109336567A
- Authority
- CN
- China
- Prior art keywords
- parts
- partial size
- diamond spar
- plate diamond
- castable refractory
- 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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
- C04B35/101—Refractories from grain sized mixtures
-
- 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
- C04B2235/70—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
- C04B2235/9676—Resistance against chemicals, e.g. against molten glass or molten salts against molten metals such as steel or aluminium
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Ceramic Products (AREA)
Abstract
The invention discloses a kind of castable refractories, according to parts by weight, it include: 29 parts to 31 parts of plate diamond spar of 3mm~6mm partial size, 16 parts to 18 parts of the plate diamond spar of 1mm~3mm partial size, 9 parts to 11 parts of the plate diamond spar of 0.5~1mm partial size, 5 parts to 7 parts of the plate diamond spar of 0.3mm~0.5mm partial size, 5 parts to 7 parts of the plate diamond spar of 0.045mm~0.3mm partial size, 11 parts to 12 parts of the plate diamond spar of 0.0~0.045mm partial size, 3 to 4 parts of calcined oxide aluminium powder, 16 to 17 parts of binder.The castable refractory provided by the invention specifically organizes timing, and after 110 DEG C of bakings, product can reach high density and flexural strength, have the slag corrosion resistance ability of significantly larger than normal pouring material product, and the service life of ladle can be made to improve 30% or more.
Description
Technical field
The present invention relates to fire resisting material fields, more specifically, in particular to a kind of castable refractory.
Background technique
Ladle is commonly used in steel mill or Foundry Works, for accepting molten steel before open hearth, electric furnace, converter, being poured
The equipment for infusing operation.In ladle use process, since the temperature of its internal accepted molten steel usually reaches more than 1000 degrees Celsius
High temperature, therefore, ladle liner are often provided with special flame retardant coating.
With the development of modern materials science, in modern ladle liner flame retardant coating production, castable refractory gradually starts to apply
Get up.Castable refractory be it is a kind of granular and pulverulent material made of a certain amount of 1 dose of bonding is added refractory material, fire resisting is poured
Material feeding has compared with high fluidity, is suitable for the molding unshape refractory of pouring type, with other unshape refractories
It compares, castable refractory mobility is preferable, and can be distinguished according to use condition refractory material material used and binder
Selection not only can directly pour into liner body use, but also prefabricated section use, therefore application range is made in available casting or bumping method
Widely.
Presently, although also occurring the castable refractory of many types in the prior art, due to existing skill
The limitation of art refractory casting material formula design, often density is all relatively low for existing castable refractory, in this way, existing fire resisting
When castable use is in the similar products such as ladle, it can not be often effective against the erosion of steel slag, to significantly impact product
Service life.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of castable refractory, which is set by its structure
Meter, can effectively improve the Slag resistance ability of product, effectively improve the service life of product.
A kind of castable refractory, according to parts by weight, comprising: 29 parts to 31 parts of the plate diamond spar of 3mm~6mm partial size,
16 parts to 18 parts of the plate diamond spar of 1mm~3mm partial size, 9 parts to 11 parts of the plate diamond spar of 0.5~1mm partial size, 0.3mm~
5 parts to 7 parts of the plate diamond spar of 0.5mm partial size, 5 parts to 7 parts of the plate diamond spar of 0.045mm~0.3mm partial size, 0.0~
11 parts to 12 parts of the plate diamond spar of 0.045mm partial size, 3 to 4 parts of calcined oxide aluminium powder, 16 to 17 parts of binder.
Preferably, the castable refractory is according to parts by weight, comprising: 30 parts of the plate diamond spar of 3mm~6mm partial size,
17 parts of the plate diamond spar of 1mm~3mm partial size, 10 parts of the plate diamond spar of 0.5~1mm partial size, the plate of 0.3mm~0.5mm partial size
6 parts of corundum, 6 parts of the plate diamond spar of 0.045mm~0.3mm partial size, 11.35 parts of the plate diamond spar of 0.0~0.045mm partial size is forged
Burn 3.25 parts of alumina powder, 16.4 parts of binder.
Preferably, the every 100g water mixing 4g to 5g of the castable refractory.
Preferably, Al in the calcined oxide aluminium powder2O3Content be not less than 99%.
Preferably, Al in the calcined oxide aluminium powder2O3Principal crystalline phase be α-Al2O3, and the α-Al2O3Content be greater than
98%.
Preferably, the median of the calcined oxide aluminium powder is 4.5 to 5.5 microns, and true specific gravity is 3.85 to 3.95g/
cm3, former crystalline substance is having a size of 2.5 to 3.5 microns.
Preferably, the binder includes following weight percentage components: Al2O3Content is 98.5%, and content of MgO is
1%, additive level is 0.1% to 0.2%, wherein the additive is citric acid or tartaric acid or lithium carbonate.
The beneficial effects of the present invention are: the castable refractory provided by the invention specifically organizes timing, by 110 DEG C of bakings
After roasting, product can reach high density and flexural strength, have the slag corrosion resistance energy of significantly larger than normal pouring material product
Power can make the service life of ladle improve 30% or more.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below will be to the application reality
The technical solution applied in example is clearly and completely described, it is clear that described embodiment is only that the application a part is real
Example is applied, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making wound
Every other embodiment obtained under the premise of the property made labour, shall fall within the protection scope of the present application.
The present invention provides a kind of novel refractory casting material formula, the castable refractory being made by the formula
Product has high-strength density and a good mobility, the refractory casting material formula be both adapted to castable, gunning refractory,
The amorphous refractory material such as self-flowing material, and it is adapted to the amorphous refractories such as fire-resistant prefabricated member.
The formula of the castable refractory provided in this embodiment is according to parts by weight, comprising: the plate of 3mm~6mm partial size
29 parts to 31 parts of corundum, 9 parts of plate diamond spar of 16 parts to 18 parts of the plate diamond spar of 1mm~3mm partial size, 0.5~1mm partial size arrive
11 parts, 5 parts to 7 parts of the plate diamond spar of 0.3mm~0.5mm partial size, 5 parts to 7 of the plate diamond spar of 0.045mm~0.3mm partial size
Part, 11 parts to 12 parts of the plate diamond spar of 0.0~0.045mm partial size, 3 to 4 parts of calcined oxide aluminium powder, 16 to 17 parts of binder.
It is resistance to further ensure that castable refractory can achieve ideal fireproof high-temperature resistant resistant to corrosion effect in the present invention
Fiery castable specifically organizes timing, and each component carries out ingredient with the structure type of dense accumulation, and this structure type, which refers to, to be occupied
Fine aggregate is filled in gap between the coarse aggregate and middle aggregate in the big portion space of material, so that the consistency of product is improved, we
In case, coarse aggregate selects the plate diamond spar of 3mm~6mm partial size and the plate diamond spar of 1mm~3mm partial size, and middle aggregate is selected
The plate diamond spar of 0.5mm~1mm partial size, fine aggregate select plate diamond spar, the 0.045mm~0.3mm of 0.3mm~0.5mm partial size
The plate diamond spar of partial size and the plate diamond spar of 0.0~0.045mm partial size.In specific implementation process, the fire resisting of this programme offer
The every 100g water mixing 4g to 5g of castable.
Specifically, plate diamond spar used in this programme is pure and does not add MgO, B2O3It is burnt into etc. any additive
Thorough alundum is shunk, which, which has, crystallizes coarse, well-developed α-Al2O3Crystal structure, Al2O3Contain
Amount is 99% or more.
Specifically, Al in calcined oxide aluminium powder used in this programme2O3Content be not less than 99%.Specifically, this reality
The calcined oxide aluminium powder for applying example selection includes the chemical constituent of following weight percent: Al2O3Content is 99.6%, SiO2Content
For 0.03%, Fe2O3Content is 0.03%, Na2O content is 0.3%.Preferably, Al in the calcined oxide aluminium powder2O3Master
Crystal phase is α-Al2O3, and the α-Al2O3Content be greater than 98%.Preferably, the median of the calcined oxide aluminium powder is
4.5 to 5.5 microns, true specific gravity is 3.85 to 3.95g/cm3, former crystalline substance is having a size of 2.5 to 3.5 microns.
Specifically, binder used in this programme includes following weight percentage components: Al2O3Content is
98.5%, content of MgO 1%, additive level is 0.1% to 0.2%, wherein the additive is citric acid or tartaric acid
Or lithium carbonate.This programme is in view of tradition is with CaO-Al2O3The aluminous cement of system be binder formed castable refractory very
It is easy to form eutectic because of the iron oxide in molten steel or clinker, and the loss of flame retardant coating or erosion are often first just from bonding
The part of agent starts to carry out, there is durability original possessed by refractory aggregate ingredient cannot be given full play to, pole
The big fire resistance for influencing castable refractory.In consideration of it, the present invention devise it is above-mentioned it is this it is special be suitable for castable refractory
Novel binders.
For the Al selected in above-mentioned binder2O3For, it is contemplated that Al2O3It tends not to accomplish in actual production
100% is pure, Al2O3In be often mingled with the impurity such as the sodium oxide molybdena, calcium oxide, silica introduced in raw ore, binder configuration
In, it need to generally guarantee Al2O3The content of middle sodium oxide molybdena is lower than 0.3%, and the content of calcium oxide is lower than 0.3%, the content of silica
Lower than 0.05%, thus the effect to further ensure that this kind of binder.
In the following, being illustrated particularly as the configuration process for the castable refractory that this programme provides:
Firstly, material needed for selecting castable refractory configuration, coarse aggregate select the plate diamond spar of 3mm~6mm partial size
The plate diamond spar 17Kg of 30Kg and 1mm~3mm partial size, middle aggregate select the plate diamond spar 10Kg of 0.5~1mm partial size, fine aggregate
Plate diamond spar 6Kg, 0.045mm~0.3mm partial size plate diamond spar 6Kg and 0.0 of selection 0.3mm~0.5mm partial size~
The plate diamond spar 11.35Kg of 0.045mm partial size, calcined oxide aluminium powder select 3.25Kg, and binder selects 16.4Kg, wherein choosing
Al in binder2O3Content is 98.5%, content of MgO 1%, and additive level is 0.1% to 0.2%, in binder
Other impurities content is no more than 1%；
Secondly, above-mentioned material is added water and stirred, add the number of water according to every 100g material water mixing 4.4g standard into
Row addition, until obtaining the slurry of good fluidity；
Again, above-mentioned slurry is configured according to the shape of regulation and is condensed, solidified and is heat-treated, to obtain
Obtain product finally.
Through field test, when the specific formulated product of the castable refractory provided by the invention, shape is assembled using above-mentioned material
At castable refractory after 60 minutes still have good mobility, by 110 DEG C baking after, the anti-folding of material is strong
Degree can achieve 28MPa, density 3.09g/cm3, during actual use, this castable has significantly larger than similar resistance to
The Slag resistance ability of fiery castable product can make ladle service life improve 30% or more.
A kind of castable refractory provided by the present invention is described in detail above.It is used herein specifically a
Principle and implementation of the present invention are described for example, the present invention that the above embodiments are only used to help understand
Method and its core concept.It should be pointed out that for those skilled in the art, not departing from the present invention
, can be with several improvements and modifications are made to the present invention under the premise of principle, these improvement and modification also fall into right of the present invention
It is required that protection scope in.
Claims (7)
1. a kind of castable refractory, according to parts by weight characterized by comprising 29 parts of the plate diamond spar of 3mm~6mm partial size
To 31 parts, 16 parts to 18 parts of the plate diamond spar of 1mm~3mm partial size, 9 parts to 11 parts of the plate diamond spar of 0.5~1mm partial size, 0.3mm
5 parts to 7 parts of the plate diamond spar of~0.5mm partial size, 5 parts to 7 parts of the plate diamond spar of 0.045mm~0.3mm partial size, 0.0~
11 parts to 12 parts of the plate diamond spar of 0.045mm partial size, 3 to 4 parts of calcined oxide aluminium powder, 16 to 17 parts of binder.
2. castable refractory according to claim 1, which is characterized in that the castable refractory according to parts by weight, wraps
Include: 30 parts of the plate diamond spar of 3mm~6mm partial size, 17 parts of the plate diamond spar of 1mm~3mm partial size, the plate of 0.5~1mm partial size is rigid
It is 10 parts beautiful, 6 parts of the plate diamond spar of 0.3mm~0.5mm partial size, 6 parts of the plate diamond spar of 0.045mm~0.3mm partial size, 0.0~
11.35 parts of the plate diamond spar of 0.045mm partial size, 3.25 parts of calcined oxide aluminium powder, 16.4 parts of binder.
3. castable refractory according to claim 1, which is characterized in that the every 100g water mixing 4g of castable refractory is extremely
5g。
4. castable refractory according to claim 1, which is characterized in that Al in the calcined oxide aluminium powder2O3Content not
Less than 99%.
5. castable refractory according to claim 4, which is characterized in that Al in the calcined oxide aluminium powder2O3Principal crystalline phase
For α-Al2O3, and the α-Al2O3Content be greater than 98%.
6. castable refractory according to claim 4, which is characterized in that the median of the calcined oxide aluminium powder is
4.5 to 5.5 microns, true specific gravity is 3.85 to 3.95g/cm3, former crystalline substance is having a size of 2.5 to 3.5 microns.
7. castable refractory according to claim 1, which is characterized in that the binder includes following weight percent
Component: Al2O3Content is 98.5%, content of MgO 1%, and additive level is 0.1% to 0.2%, wherein the additive is
Citric acid or tartaric acid or lithium carbonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811334267.9A CN109336567A (en) | 2018-11-09 | 2018-11-09 | A kind of castable refractory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811334267.9A CN109336567A (en) | 2018-11-09 | 2018-11-09 | A kind of castable refractory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109336567A true CN109336567A (en) | 2019-02-15 |
Family
ID=65314326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811334267.9A Pending CN109336567A (en) | 2018-11-09 | 2018-11-09 | A kind of castable refractory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109336567A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU7445281A (en) * | 1981-07-06 | 1983-03-03 | Namco Aikoh Ltd. | Refractory sealing material |
| CN101445379A (en) * | 2008-12-19 | 2009-06-03 | 周建国 | Dedicated pouring material for cement kiln outlet and jetting coal pipe and preparation method thereof |
| CN102126867A (en) * | 2011-04-26 | 2011-07-20 | 中钢集团洛阳耐火材料研究院有限公司 | High-density high-strength alumina self-flow castable |
| CN103739299A (en) * | 2013-12-16 | 2014-04-23 | 洛阳利尔耐火材料有限公司 | Fire-resistant self-flow castable |
| CN105531238A (en) * | 2013-09-11 | 2016-04-27 | 纳博特股份公司 | Hydraulic binder system based on aluminum oxide |
-
2018
- 2018-11-09 CN CN201811334267.9A patent/CN109336567A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU7445281A (en) * | 1981-07-06 | 1983-03-03 | Namco Aikoh Ltd. | Refractory sealing material |
| CN101445379A (en) * | 2008-12-19 | 2009-06-03 | 周建国 | Dedicated pouring material for cement kiln outlet and jetting coal pipe and preparation method thereof |
| CN102126867A (en) * | 2011-04-26 | 2011-07-20 | 中钢集团洛阳耐火材料研究院有限公司 | High-density high-strength alumina self-flow castable |
| CN105531238A (en) * | 2013-09-11 | 2016-04-27 | 纳博特股份公司 | Hydraulic binder system based on aluminum oxide |
| CN103739299A (en) * | 2013-12-16 | 2014-04-23 | 洛阳利尔耐火材料有限公司 | Fire-resistant self-flow castable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106431436B (en) | Electric furnace cover castable taking aluminum-chromium slag as main material and preparation method thereof | |
| KR101444575B1 (en) | Binder for unshaped refractory, unshaped refractory, and method for working unshaped refractory | |
| CN109694241A (en) | A kind of castable refractory | |
| CN110128119A (en) | Blast furnace main iron channel castable and processing method and the method for preparing main trough of blast furnace | |
| CN109627027B (en) | Aluminum-magnesium-iron-chromium spinel composite material and preparation method thereof | |
| CN107141002A (en) | Composite fibre for desulfurization agitator strengthens castable refractory | |
| CN111718199A (en) | Refractory heat-insulating ladle castable | |
| CN106702056A (en) | Iron tap channel swing spout prefabricated piece and manufacturing method thereof | |
| CN105254319A (en) | Casting material for prefabricated brick for feeding chamber and preparation method of casting material | |
| CN109456067A (en) | A kind of castable refractory | |
| US7166551B2 (en) | Monothilic refractory composition | |
| CN109336569A (en) | A kind of castable refractory | |
| CN100478306C (en) | High-alumina electric furnace cover pouring material and preparation method thereof | |
| US6730159B1 (en) | Clinker hydraulic binder, use and method for making same | |
| CN109456072B (en) | Anti-skinning castable for cement kiln and preparation method thereof | |
| CN106365647A (en) | Castable | |
| CN109336624A (en) | A kind of castable refractory | |
| CN108439963A (en) | A kind of circulating fluidized bed boiler water-cooling wall castable and preparation method thereof | |
| CN109678532A (en) | A kind of castable refractory | |
| CN107141000A (en) | A kind of resistive connection skin wear-resistant castable | |
| CN107617732B (en) | A kind of refractory material liner body and preparation method thereof for ladle | |
| CN109336567A (en) | A kind of castable refractory | |
| CN110606757A (en) | Sulfur-alkali corrosion resistant wear-resistant castable for sludge incineration kiln and preparation process thereof | |
| JP2874831B2 (en) | Refractory for pouring | |
| CN109336570A (en) | A kind of castable refractory |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190215 |