CN109678532A - A kind of castable refractory - Google Patents
A kind of castable refractory Download PDFInfo
- Publication number
- CN109678532A CN109678532A CN201811333169.3A CN201811333169A CN109678532A CN 109678532 A CN109678532 A CN 109678532A CN 201811333169 A CN201811333169 A CN 201811333169A CN 109678532 A CN109678532 A CN 109678532A
- Authority
- CN
- China
- Prior art keywords
- parts
- mullite
- corundum
- castable refractory
- content
- 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
- C04B35/66—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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Products (AREA)
Abstract
The invention discloses a kind of castable refractories, according to parts by weight, it include: 14 parts to 16 parts of corundum-mullite of 1.5mm~3mm partial size, 24 parts to 26 parts of the corundum-mullite of 0.5mm~1.5mm partial size, 14 parts to 16 parts of the corundum-mullite of 0.0~0.5mm partial size, 14 to 16 parts of mullite synthesizing, 29 to 31 parts of binder of sintering.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 20% 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: 14 parts to 16 of the corundum-mullite of 1.5mm~3mm partial size
Part, 24 parts to 26 parts of the corundum-mullite of 0.5mm~1.5mm partial size, 14 parts to 16 of the corundum-mullite of 0.0~0.5mm partial size
Part, it is sintered 14 to 16 parts of mullite synthesizing, 29 to 31 parts of binder.
Preferably, the castable refractory is according to parts by weight, comprising: the corundum-mullite 15 of 1.5mm~3mm partial size
Part, 25 parts of the corundum-mullite of 0.5mm~1.5mm partial size, 15 parts of the corundum-mullite of 0.0~0.5mm partial size, sintering synthesis
15 parts of mullite, 30 parts of binder.
Preferably, the every 100g water mixing 5.4g to 5.6g of the castable refractory.
Preferably, the corundum-mullite includes the chemical constituent of following weight percent: Al2O3Content be 83%~
87%, SiO2Content is 12%~16%.
Preferably, the corundum-mullite includes the crystal form component of following weight percent: corundum phase content be 45% to
50%, mullite phase content is 45% to 50%.
Preferably, the sintering mullite synthesizing includes the chemical constituent of following weight percent: Al2O3Content is 70%
~74%, SiO2Content is 24%~28%.
Preferably, the sintering mullite synthesizing includes the crystal form component of following weight percent: mullite phase content is
90% to 95%, amount of glassy phase is 5% to 10%.
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 20% 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: 1.5mm~3mm partial size it is rigid
14 parts to 16 parts of beautiful mullite, 24 parts to 26 parts of the corundum-mullite of 0.5mm~1.5mm partial size, 0.0~0.5mm partial size it is rigid
14 parts to 16 parts of beautiful mullite is sintered 14 to 16 parts of mullite synthesizing, 29 to 31 parts of binder.It is further true in the present invention
Protecting castable refractory can achieve ideal fireproof high-temperature resistant resistant to corrosion effect, and castable refractory specifically organizes timing, each component with
The structure type of dense accumulation carries out ingredient, and this structure type refers in the coarse aggregate and middle bone for occupying the big portion space of material
Fine aggregate is filled in gap between material, so that the consistency of product is improved, in the present solution, coarse aggregate selects 1.5mm~3mm
The corundum-mullite of partial size, middle aggregate select the corundum-mullite of 0.5mm~1.5mm partial size, and fine aggregate selects 0.0~0.5mm
The corundum-mullite of partial size.In specific implementation process, the every 100g water mixing 5.4g to 5.6g of castable refractory of this programme offer.
Specifically, corundum-mullite used in this programme is the sizing of splendid resistance to 1800 DEG C of high temperature a kind of and indefinite
The resistance to rich aluminium fire material substrate of type, corundum-mullite used in this programme include the chemical constituent of following weight percent: Al2O3
Content is 83%~87%, SiO2Content is 12%~16%.The corundum-mullite includes the crystal form of following weight percent
Component: corundum phase content is 45% to 50%, and mullite phase content is 45% to 50%.
Specifically, sintering mullite synthesizing used in this programme is the micro powder granule that the porosity is low, crystal grain is tiny, institute
State the chemical constituent that sintering mullite synthesizing includes following weight percent: Al2O3Content is that 70%~74%, SiO2 content is
24%~28%.The sintering mullite synthesizing includes the crystal form component of following weight percent: mullite phase content is 90%
To 95%, amount of glassy phase is 5% to 10%.
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 selects the corundum of 1.5mm~3mm partial size not come
Stone 15Kg, middle aggregate select the corundum-mullite 25Kg of 0.5mm~1.5mm partial size, and fine aggregate selects 0.0~0.5mm partial size
Corundum-mullite 15Kg, sintering mullite synthesizing select 15Kg, and binder selects 30Kg.Wherein, Al in the binder of selection2O3
Content is 98.5%, content of MgO 1%, and additive level is 0.1% to 0.2%, and other impurities content does not surpass in binder
Cross 1%；
Secondly, above-mentioned material is added water and stirred, add the number of water according to every 100g material water mixing 5.5g 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 16MPa, density 2.78g/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 20% 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 (8)
1. a kind of castable refractory, according to parts by weight characterized by comprising the corundum-mullite of 1.5mm~3mm partial size
14 parts to 16 parts, 24 parts to 26 parts of the corundum-mullite of 0.5mm~1.5mm partial size, the corundum-mullite of 0.0~0.5mm partial size
14 parts to 16 parts, it is sintered 14 to 16 parts of mullite synthesizing, 29 to 31 parts of binder.
2. castable refractory according to claim 1, which is characterized in that the castable refractory according to parts by weight, wraps
It includes: 15 parts of the corundum-mullite of 1.5mm~3mm partial size, 25 parts of the corundum-mullite of 0.5mm~1.5mm partial size, 0.0~0.5mm
15 parts of the corundum-mullite of partial size is sintered 15 parts of mullite synthesizing, 30 parts of binder.
3. castable refractory according to claim 1, which is characterized in that the every 100g water mixing 5.4g of castable refractory is extremely
5.6g。
4. castable refractory according to claim 1, which is characterized in that the corundum-mullite includes following weight percent
The chemical constituent of ratio: Al2O3Content is 83%~87%, SiO2Content is 12%~16%.
5. castable refractory according to claim 4, which is characterized in that the corundum-mullite includes following weight percent
The crystal form component of ratio: corundum phase content is 45% to 50%, and mullite phase content is 45% to 50%.
6. castable refractory according to claim 1, which is characterized in that the sintering mullite synthesizing includes following weight
The chemical constituent of percentage: Al2O3Content is that 70%~74%, SiO2 content is 24%~28%.
7. castable refractory according to claim 6, which is characterized in that the sintering mullite synthesizing includes following weight
The crystal form component of percentage: mullite phase content is 90% to 95%, and amount of glassy phase is 5% to 10%.
8. 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 |
|---|---|---|---|
| CN201811333169.3A CN109678532A (en) | 2018-11-09 | 2018-11-09 | A kind of castable refractory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811333169.3A CN109678532A (en) | 2018-11-09 | 2018-11-09 | A kind of castable refractory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109678532A true CN109678532A (en) | 2019-04-26 |
Family
ID=66185305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811333169.3A Pending CN109678532A (en) | 2018-11-09 | 2018-11-09 | A kind of castable refractory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109678532A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111892392A (en) * | 2020-08-11 | 2020-11-06 | 中钢南京环境工程技术研究院有限公司 | Preparation method of complex-shaped refractory heat-insulating tile for heavy-duty gas turbine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU7445281A (en) * | 1981-07-06 | 1983-03-03 | Namco Aikoh Ltd. | Refractory sealing material |
| CN102030551B (en) * | 2010-11-03 | 2012-11-14 | 通达耐火技术股份有限公司 | Corundum-mullite high strength and wear resistant casting material containing homogenous material |
| CN103058683A (en) * | 2013-01-25 | 2013-04-24 | 苏州罗卡节能科技有限公司 | Medium-density mullite casting material |
| CN103896603A (en) * | 2012-12-28 | 2014-07-02 | 攀钢冶金材料有限责任公司 | Refractory castable material for salt chlorinator, preparation method and application thereof |
| CN104496500A (en) * | 2014-12-29 | 2015-04-08 | 通达耐火技术股份有限公司 | Castable for ladle and preparation method thereof |
| 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 CN201811333169.3A patent/CN109678532A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU7445281A (en) * | 1981-07-06 | 1983-03-03 | Namco Aikoh Ltd. | Refractory sealing material |
| CN102030551B (en) * | 2010-11-03 | 2012-11-14 | 通达耐火技术股份有限公司 | Corundum-mullite high strength and wear resistant casting material containing homogenous material |
| CN103896603A (en) * | 2012-12-28 | 2014-07-02 | 攀钢冶金材料有限责任公司 | Refractory castable material for salt chlorinator, preparation method and application thereof |
| CN103058683A (en) * | 2013-01-25 | 2013-04-24 | 苏州罗卡节能科技有限公司 | Medium-density mullite casting material |
| CN105531238A (en) * | 2013-09-11 | 2016-04-27 | 纳博特股份公司 | Hydraulic binder system based on aluminum oxide |
| CN104496500A (en) * | 2014-12-29 | 2015-04-08 | 通达耐火技术股份有限公司 | Castable for ladle and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111892392A (en) * | 2020-08-11 | 2020-11-06 | 中钢南京环境工程技术研究院有限公司 | Preparation method of complex-shaped refractory heat-insulating tile for heavy-duty gas turbine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2010047136A1 (en) | Binder for unshaped refractory, and unshaped refractory | |
| CN103588492B (en) | High-quality carbon-free aluminum-magnesium spinel brick used for refined steel ladle lining and preparation method thereof | |
| CN102617169A (en) | Corundum and spinel castable and preparation method thereof | |
| CN101337821A (en) | Low density fire resistant pouring material for KR stirring paddle | |
| KR101444575B1 (en) | Binder for unshaped refractory, unshaped refractory, and method for working unshaped refractory | |
| CN109694241A (en) | A kind of castable refractory | |
| CN106431436A (en) | Electric furnace cover castable taking aluminum-chromium slag as main material and preparation method thereof | |
| CN107141002A (en) | Composite fibre for desulfurization agitator strengthens castable refractory | |
| CN110128119A (en) | Blast furnace main iron channel castable and processing method and the method for preparing main trough of blast furnace | |
| CN106702056A (en) | Iron tap channel swing spout prefabricated piece and manufacturing method thereof | |
| CN105906349B (en) | A kind of blast furnace iron outlet groove swing runner castable refractory and preparation method thereof | |
| CN105254319A (en) | Casting material for prefabricated brick for feeding chamber and preparation method of casting material | |
| US7166551B2 (en) | Monothilic refractory composition | |
| CN102898168B (en) | Compound magnesium-aluminum-chrome refractory castable for copper smelting tundish | |
| CN100478306C (en) | High-alumina electric furnace cover pouring material and preparation method thereof | |
| CN109456072B (en) | Anti-skinning castable for cement kiln and preparation method thereof | |
| CN109456067A (en) | A kind of castable refractory | |
| CN109336569A (en) | A kind of castable refractory | |
| CN109678532A (en) | A kind of castable refractory | |
| CN108439963A (en) | A kind of circulating fluidized bed boiler water-cooling wall castable and preparation method thereof | |
| Racher et al. | Magnesium aluminate spinel raw materials for high performance refractories for steel ladles | |
| CN107617732A (en) | A kind of refractory material liner body for ladle and preparation method thereof | |
| CN109336624A (en) | A kind of castable refractory | |
| JP4220131B2 (en) | Amorphous refractory composition for ladle | |
| JP2874831B2 (en) | Refractory for pouring |
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: 20190426 |
|
| RJ01 | Rejection of invention patent application after publication |