CN106278327A - A kind of working lining castable - Google Patents
A kind of working lining castable Download PDFInfo
- Publication number
- CN106278327A CN106278327A CN201610706629.7A CN201610706629A CN106278327A CN 106278327 A CN106278327 A CN 106278327A CN 201610706629 A CN201610706629 A CN 201610706629A CN 106278327 A CN106278327 A CN 106278327A
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- CN
- China
- Prior art keywords
- working lining
- aluminate
- powder
- ladle
- sintered microporous
- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
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- 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)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The present invention relates to a kind of working lining castable, a kind of ladle liner or working lining castable.nullComponent including following parts by weight，The technical problem to be solved is to provide a kind of castable，Using position is the direct liner that ladle contacts with molten iron，The most each weight percentages of components is: homogenizing Alumina 12 8mm is 8～20%、Sintered microporous aluminate 8 5mm is l1～15%、Sintered microporous aluminate 5 3mm is 12～15%，Sintered microporous aluminate 3 lmm is 10～15%、Sintered microporous aluminate≤1mm is 30～35%，Modified calcium magnesite≤1mm0～5%，Cr3C2 powder 1%，Pluralgel powder 3～5%，Hydrated alumina micropowder 1%，Nacrite powder 1%，Germanic acid bismuth meal 0.5%，Modified pure calcium aluminate cement 3～5%，Additional C7H10N2O2S0.1%，C21H14Na2O6S20.1%，2 morpholino b acids 0.05%.The present invention can improve the high-temperature behavior of ladle product, erosion performance, is added significantly to the thermal shock resistance of ladle, is effectively increased the service life of integrated poured ladle working lining, improves more than 30% than routine with the ladle working lining life-span of type.
Description
The application is the divisional application of Application No. 201510380581.0.
Technical field
The present invention relates to a kind of working lining castable, a kind of use is at the refractory casting of ladle working lining
Material.
Background technology
The refractory material that ferrum bag neutralization molten iron water directly contacts is referred to as ladle working lining.Ladle work in prior art
The general alumina-silica castable that uses of layer, but the properties of ladle liner is general at present, therefore, directly affects ladle
In service life, how to improve the service life of ladle, the performance improving ladle working lining is the most key, therefore in ladle
The performance improvement of liner in pouring material becomes the key extending ladle service life.
Summary of the invention
In order to solve above-mentioned technical problem, the present invention provides a kind of working lining castable, can reduce ladle liner material
Material and the reaction of the element such as sulfur phosphorus in molten iron, reduce the dry slag of ladle, improves its opposing and corrodes the high temperatures of ladle product
Energy, erosion performance, be added significantly to the thermal shock resistance of ladle, improve the combination property of ladle, final ferrum generally
The service life of water bag is significantly increased.
The technical problem to be solved is to provide a kind of working lining castable, and using position is ladle and molten iron
The direct liner of contact, the most each weight percentages of components is: homogenizing Alumina 12 8mm be 8～20%, sintered microporous aluminum point brilliant
Stone 8 5mm is l1～15%, sintered microporous aluminate 5 3mm is 12～15%, and sintered microporous aluminate 3 one lmm is
10～15%, sintered microporous aluminate≤1mm be 30～35%, modified calcium magnesite≤1mm0～5%, Cr3C2 powder 1%,
Pluralgel powder 3～5%, hydrated alumina micropowder 1%, nacrite powder 1%, germanic acid bismuth meal 0.5%, modified pure calcium aluminate cement 3
～5%, additional C7H10N2O2S0.1%, C21H14Na2O6S20.1%, MES 0.05%.
Described pluralgel powder is zirconium gel powder and the composite powder of alumina gel powder, and its weight ratio is 1:2, described homogenizing
The alumina content ＞ 85% of Alumina..
Described modified calcium magnesite refers to calcium magnesite H2C2O4Carry out dipping and carbonating processes, make film on MgO-CaO clinker be formed
The coating film of hydration-resisting.
Described sintered microporous aluminate is alumina content >=78%, aperture≤5 micron of micropore of remaining silent, micropore of remaining silent
Account for more than the 80% of total pore.
Aluminum content >=30% of described nacrite.
Described modified pure calcium aluminate cement be cement production process adds 5% aluminate, 3% zirconium carbonate is again through height
The characteristic cement that temperature sintering manufactures, aluminum content >=75% of modified calcium aluminate cement.
The invention has the beneficial effects as follows:
The present invention can reduce in molten iron the elements such as sulfur phosphorus and react the erosion damage of molten iron working lining liner, reduces molten iron job contract
Make the dry slag of layer, be added significantly to the thermal shock resistance of ladle working lining, be effectively increased integrated poured ladle working lining
Service life, than routine with type the ladle working lining life-span improve more than 30%.
Detailed description of the invention
Embodiment 1:
A kind of working lining castable, the most each weight percentages of components is: each weight percentages of components is: homogenizing Alumina 12
8mm is 15%, sintered microporous aluminate 8 5mm is 14%, sintered microporous aluminate 5 3mm is 15%, sintered microporous
Aluminate 3 one lmm is 13%, sintered microporous aluminate≤1mm is 30%, Cr3C2 powder 1%, pluralgel powder 5%,
Hydrated alumina micropowder 1%, nacrite powder 1%, germanic acid bismuth meal 0.5%, modified pure calcium aluminate cement 4.5%, additional
C7H10N2O2S0.1%, C21H14Na2O6S20.1%, MES 0.05%.Above-mentioned dispensing mix homogeneously is i.e. obtained ladle
Castable.
Experiment test is carried out: additional account for above-mentioned formula proportion weight with a kind of working lining casting material formula of embodiment 1
The water of 6wt%, test performance index is as follows: bulk density is 2.9/cm3；After 1500 DEG C × 3h burns, rupture strength is 15MPa；
After 1500 DEG C × 3h burns, compressive resistance is 66MPa；After 1100 DEG C of water-cooleds 12 times, rupture strength conservation rate is 45%；More similar than conventional
The ladle life-span of type improves more than 30%.
Embodiment 2:
A kind of working lining castable, the most each weight percentages of components is: each weight percentages of components is: homogenizing Alumina 12
8mm is 14%, sintered microporous aluminate 8 5mm is 15%, sintered microporous aluminate 5 3mm is 15%, sintered microporous
Aluminate 3 one lmm is 12%, sintered microporous aluminate≤1mm is 30%, and modified calcium magnesite≤1mm is 2%, two carbonizations three
Chromium powder 1%, pluralgel powder 5%, hydrated alumina micropowder 1%, nacrite powder 1%, germanic acid bismuth meal 0.5%, modified pure calcium aluminate water
Mud 3.5%, additional C7H10N2O2S0.1%, C21H14Na2O6S20.1%, MES 0.05%.By the mixing of above-mentioned dispensing all
Even i.e. obtain ladle castable.
Experiment test is carried out: the additional water accounting for above-mentioned formula proportion weight 4wt%, test with the casting material formula of embodiment 2
Performance indications are as follows: bulk density is 2.9/cm3；After 1500 DEG C × 3h burns, rupture strength is 16MPa；After 1500 DEG C × 3h burns
Compressive resistance is 72MPa；After 1100 DEG C of water-cooleds 10 times, rupture strength conservation rate is 54%, than routine with ladle life-span of type
Improve more than 32%.
Claims (6)
1. a working lining castable, it is characterised in that each weight percentages of components is: homogenizing Alumina 12 8mm be 8～
20%, sintered microporous aluminate 8 5mm be l1～15%, sintered microporous aluminate 5 3mm be 12～15%, sinter micro-
Hole aluminate 3 one lmm be 10～15%, sintered microporous aluminate≤1mm be 30～35%, modified calcium magnesite≤1mm0～
5%, Cr3C2 powder 1%, pluralgel powder 3～5%, hydrated alumina micropowder 1%, nacrite powder 1%, germanic acid bismuth meal 0.5%,
Modified pure calcium aluminate cement 3～5%, additional C7H10N2O2S0.1%, C21H14Na2O6S20.1%, MES 0.05%.
2. a kind of working lining castable as claimed in claim 1, it is characterised in that described pluralgel powder is zirconium gel powder
With the composite powder of alumina gel powder, its weight ratio is 1:2；The alumina content ＞ 85% of described homogenizing Alumina.
3. a kind of working lining castable as claimed in claim 1, it is characterised in that described sintered microporous aluminate is oxidation
Aluminum content >=78%, aperture≤5 micron of micropore of remaining silent, micropore of remaining silent accounts for more than the 80% of total pore.
4. a kind of working lining castable as claimed in claim 1, it is characterised in that described modified calcium magnesite refers to that calcium magnesite is used
H2C2O4Carry out dipping and carbonating processes, make film on MgO-CaO clinker form the coating film of hydration-resisting.
5. a kind of working lining castable as claimed in claim 1, it is characterised in that aluminum content >=30% of described nacrite.
6. a kind of working lining castable as claimed in claim 1, it is characterised in that described modified pure calcium aluminate cement is cement
Production process adds the aluminate of 5%, the characteristic cement that 3% zirconium carbonate manufactures through high temperature sintering again, modified aluminic acid
Aluminum content >=75% of calcium cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610706629.7A CN106278327A (en) | 2015-07-02 | 2015-07-02 | A kind of working lining castable |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610706629.7A CN106278327A (en) | 2015-07-02 | 2015-07-02 | A kind of working lining castable |
| CN201510380581.0A CN104961486B (en) | 2015-07-02 | 2015-07-02 | A kind of working lining castable |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510380581.0A Division CN104961486B (en) | 2015-07-02 | 2015-07-02 | A kind of working lining castable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106278327A true CN106278327A (en) | 2017-01-04 |
Family
ID=54215614
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610706670.4A Pending CN106431426A (en) | 2015-07-02 | 2015-07-02 | Working layer castable |
| CN201610706669.1A Pending CN106431425A (en) | 2015-07-02 | 2015-07-02 | Working layer castable |
| CN201610706629.7A Pending CN106278327A (en) | 2015-07-02 | 2015-07-02 | A kind of working lining castable |
| CN201510380581.0A Active CN104961486B (en) | 2015-07-02 | 2015-07-02 | A kind of working lining castable |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610706670.4A Pending CN106431426A (en) | 2015-07-02 | 2015-07-02 | Working layer castable |
| CN201610706669.1A Pending CN106431425A (en) | 2015-07-02 | 2015-07-02 | Working layer castable |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510380581.0A Active CN104961486B (en) | 2015-07-02 | 2015-07-02 | A kind of working lining castable |
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| CN (4) | CN106431426A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108610027B (en) * | 2018-07-16 | 2021-09-24 | 武汉科技大学 | High-performance cement-bonded castable and preparation method thereof |
| CN108892486B (en) * | 2018-08-23 | 2021-06-04 | 安徽瑞泰新材料科技有限公司 | Explosion-proof castable |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101544505A (en) * | 2009-03-20 | 2009-09-30 | 高树森 | Nano Al2O3 and MgO composite ceramic bonded spinel-magnesia fireproof casting material and preparation method thereof |
| CN102898168B (en) * | 2012-11-09 | 2014-07-09 | 郑州瑞泰耐火科技有限公司 | Compound magnesium-aluminum-chrome refractory castable for copper smelting tundish |
| CN104557086A (en) * | 2014-12-30 | 2015-04-29 | 北京利尔高温材料股份有限公司 | Magnesium-enriched spinel carbon brick for slag-out side of wall of steel ladle and preparation method of magnesium-enriched spinel carbon brick |
-
2015
- 2015-07-02 CN CN201610706670.4A patent/CN106431426A/en active Pending
- 2015-07-02 CN CN201610706669.1A patent/CN106431425A/en active Pending
- 2015-07-02 CN CN201610706629.7A patent/CN106278327A/en active Pending
- 2015-07-02 CN CN201510380581.0A patent/CN104961486B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106431425A (en) | 2017-02-22 |
| CN106431426A (en) | 2017-02-22 |
| CN104961486B (en) | 2017-01-04 |
| CN104961486A (en) | 2015-10-07 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170104 |