CN106316419A - Refractory castable used in reducing atmosphere - Google Patents
Refractory castable used in reducing atmosphere Download PDFInfo
- Publication number
- CN106316419A CN106316419A CN201610618594.1A CN201610618594A CN106316419A CN 106316419 A CN106316419 A CN 106316419A CN 201610618594 A CN201610618594 A CN 201610618594A CN 106316419 A CN106316419 A CN 106316419A
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- parts
- mesh
- reducing atmosphere
- andalusite
- castable
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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
-
- 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
-
- 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
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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)
Abstract
The invention provides a refractory castable used in a reducing atmosphere. The refractory castable has stronger anti-CO corrosion capability in the strong reducing atmosphere, also has better abrasion-resisting properties and good construction performance, meanwhile it is ensured that the castable has higher strength and excellent combination properties in the whole temperature stage from low temperature to medium temperature to high temperature, and the shortcoming that an existing castable only has better high temperature performance is overcome.
Description
Technical field
The invention belongs to technical field of refractory materials, be specifically related to a kind of reducing atmosphere castable refractory.
Background technology
There is the characteristic that high alumina, high silicon, grindability difference and indissoluble go out in China's duralumin stone type bauxite, oxidizing aluminum produced
Journey brings the biggest trouble, and for now, tube digestion mode is increasingly becoming a kind of development trend, and molten salt furnace is then
The firing equipment of most critical in tube digestion system.
At present, the burner hearth of alumina producer molten salt furnace is generally formed by High-Alumina castable refractory is integrated poured, and makes burner hearth
Liner body organizational structure becomes to loosen very much, even burst apart.In use, strongly the washing away of high-temperature flue gas and coal ash, burner hearth
The fluctuation of temperature, can make burner hearth liner body suffer serious erosion, cause large area to peel off.When the damage of burner hearth liner body is the most serious
Time, it is necessary to blowing out is repaired, and this not only wastes mass energy, also has a strong impact on being normally carried out of production.
CN105130464A discloses a kind of molten salt furnace castable and preparation method thereof, by gangue grog, corundum fine powder,
The explosion-proof fiber of hydrated alumina, silicon powder, low melting point, water reducer form.But this castable hardness is low, wear no resistance；With
Time, castable mobility is bad, solidifies too fast, and bond strength is relatively low in early days, had a strong impact on the middle low temperature of product both 900 DEG C with
Under performance, to molten salt furnace safety in production bring bigger hidden danger, additionally, there is also be difficult to construction, therefore still need to improve.
Summary of the invention
It is an object of the present invention to provide a kind of reducing atmosphere castable, workability is good, and intensity is higher, can purify material
The impurity such as the ferrum oxide that material contains, final acquisition is a kind of can have stronger Resistance to CO ability, again in strongly reducing atmosphere
There is preferable anti-wear performance, good workability, also ensure that, under middle low temperature and high temperature, castable all has good simultaneously
A kind of castable of performance.
For achieving the above object, the above-mentioned technical purpose of the present invention has the technical scheme that one
Reducing atmosphere castable, is made up of the component of following parts by weight:
Micropore corundum 50-60 part
Carborundum 7-10 part
Calcium hexaluminate 5-8 part
Yongji clay 1-3 part
Andalusite 3-4 part
Micropore schmigel 8-12 part
Cutting powder 3-6 part
Zinc silicate zirconium powder 3-6 part
Andalusite micropowder 3-6 part
Automolite micropowder 1 part
Zinc oxide ultra_fine powders 3-5 part
CA60 cement 3-6 part
Outer doping 1 part
Additional mobility improves additive 0.1 part.
Further, a kind of reducing atmosphere castable, it is made up of the component of following parts by weight:
12-5mm micropore corundum 50-60 part
5-3mm carborundum 7-10 part
3-1mm calcium hexaluminate 5-8 part
1-0mm andalusite 3-4 part
200 mesh Yongji clay 1-3 parts
325 mesh micropore schmigel 8-12 parts
325 mesh cutting powder 3-6 parts
Zinc silicate zirconium powder 3-6 part
800 mesh andalusite micropowder 3-6 parts
1000 mesh automolite micropowders 1 part
1000 mesh zinc oxide ultra_fine powders 3-5 parts
CA60 cement 3-6 part
Outer doping REFPAC®100 1 parts
Additional mobility improves additive Peramin®AL 200 0.1 parts.
Further, described cutting powder is the garbage produced during monocrystalline silicon production, described in be mainly composed of
SiC75%, elemental silicon 25%.
Further, the mesh number of described andalusite micropowder is 800 mesh, alumina content 60%, iron oxide content ＜
0.2%。
Further, described automolite micropowder or the mesh number being called franklinite micropowder are 1000 mesh.
Further, the mesh number of described zinc oxide ultra_fine powders is 1000 mesh.
Further, described additive REFPAC®100, density is at 1.0-1.2 gram every cubic centimetre.
Further, described mobility improves additive Peramin®AL 200, density is at 1.45-1.55 gram every cube
Centimetre.
Preferential, the weight portion of described castable consists of:
12-5mm micropore corundum 50-60 part,
5-3mm carborundum 7-10 part,
3-1mm calcium hexaluminate 5-8 part,
1-0mm andalusite 3-4 part
200 mesh Yongji clay 1-3 parts
325 mesh micropore schmigel 8-12 parts
325 mesh cutting powder 3-6 parts
Zinc silicate zirconium powder 3-6 part
800 mesh andalusite micropowder 3-6 parts
1000 mesh automolite micropowders 1 part
1000 mesh zinc oxide ultra_fine powders 3-5 parts
CA60 cement 3-6 part
Outer doping REFPAC®100 1 parts
Additional mobility improves additive Peramin®AL 200 0.1 parts.
Preferential, the weight portion of described castable consists of 50 parts of 12-5mm micropore corundum, 5-3mm carborundum 10 parts,
3-1mm calcium hexaluminate 5 parts, 1-0mm andalusite 4 parts, 200 mesh Yongji clays 1 part, 325 mesh micropore schmigels 10 parts,
325 mesh 5 parts of powder of cutting, zinc silicate zirconium powder 5 parts, 800 mesh andalusite micropowders 3 parts, 1000 mesh automolite micropowders 1 part, 1000
Mesh zinc oxide ultra_fine powders 3 parts, CA60 cement 3 parts, outer doping REFPAC®100 1 parts, additional mobility improves additive
Peramin®AL 200 0.1 parts.
Preferential, the weight portion of described castable consists of 50 parts of 12-5mm micropore corundum, 5-3mm carborundum 7 parts,
3-1mm calcium hexaluminate 5 parts, 1-0mm andalusite 3 parts, 200 mesh Yongji clays 1 part, 325 mesh micropore schmigels 8 parts, 325
Mesh 6 parts of powder of cutting, zinc silicate zirconium powder 5 parts, 800 mesh andalusite micropowders 3 parts, 1000 mesh automolite micropowders 1 part, 1000 mesh
Zinc oxide ultra_fine powders 5 parts, CA60 cement 6 parts, outer doping REFPAC®100 1 parts, additional mobility improves additive
Peramin®AL 200 0.1 parts.
Preferential, the weight portion of described castable consists of 55 parts of 12-5mm micropore corundum, 5-3mm carborundum 8 parts,
3-1mm calcium hexaluminate 5 parts, 1-0mm andalusite 3 parts, 200 mesh Yongji clays 2 parts, 325 mesh micropore schmigels 9 parts, 325
Mesh 3 parts of powder of cutting, zinc silicate zirconium powder 3 parts, 800 mesh andalusite micropowders 4 parts, 1000 mesh automolite micropowders 1 part, 1000 mesh
Zinc oxide ultra_fine powders 3 parts, CA60 cement 4 parts, outer doping REFPAC®100 1 parts, additional mobility improves additive
Peramin®AL 200 0.1 parts.
Compared with prior art, what the present invention brought has the beneficial effect that the andalusite of addition, calcium hexaluminate, zinc zirconium silicate
Deng all having good opposing reducing atmosphere and erosion-resistant performance；Use ultra-fine andalusite micropowder, so that red post
Stone reacts in relatively low temperature, can absorb thermal stress, and generation mullite offsets material under applied at elevated temperature mutually
The contraction of material, stablizes the performance of castable；By introducing automolite micropowder as crystal seed, promotion zinc oxide ultra_fine powders and material
In iron tramp generation chemical reaction, generate franklinite of good performance, it is to avoid in system, the existence of iron tramp is to watering
The infringement of material feeding performance；The cutting powder used, because having carborundum and elemental silicon, improves thermal shock resistance and the antioxygen of material
Change performance, also save material cost；Use that cement, Yongji clay are compound makees bonding agent, it is to avoid castable low temperature and middle high temperature
The defect that the performances such as intensity are relatively low so that castable all has higher at whole temperature stage from low temperature to middle temperature again to high temperature
Intensity and excellent combination property, change original only preferable defect of high-temperature behavior；The additive added can control
Aluminate cement rate of dissolution and firm time, make workability persistently reliable, adapts to the fluctuation of current many raw material qualities；
Mobility improves additive can accelerate castable moistening, improves the stirring efficiency of castable, construction of no matter vibrating or flow automatically,
Can fast and effeciently get rid of bubble to guarantee concordance and the degree of compaction of castable.By using the technical program, the present invention
The bulk life time of castable be more than 3 times of currently used product, substantially increase the bulk life time of furnace lining.
Detailed description of the invention
Embodiment 1,50 parts of 12-5mm micropore corundum, 5-3mm carborundum 10 parts, 3-1mm calcium hexaluminate 5 parts, 1-0mm is red
4 parts of pillar, 200 mesh Yongji clays 1 part, 325 mesh micropore schmigels 10 parts, 325 mesh 5 parts of powder of cutting, zinc silicate zirconium powder 5 parts,
800 mesh andalusite micropowders 3 parts, 1000 mesh automolite micropowders 1 part, 1000 mesh zinc oxide ultra_fine powderses 3 parts, CA60 cement 3 parts, outward
Doping REFPAC®100 1 parts, additional mobility improves additive Peramin®AL 200 0.1 parts.
Embodiment 2,50 parts of 12-5mm micropore corundum, 5-3mm carborundum 7 parts, 3-1mm calcium hexaluminate 5 parts, 1-0mm is red
3 parts of pillar, 200 mesh Yongji clays 1 part, 325 mesh micropore schmigels 8 parts, 325 mesh 6 parts of powder of cutting, zinc silicate zirconium powder 5 parts,
800 mesh andalusite micropowders 3 parts, 1000 mesh automolite micropowders 1 part, 1000 mesh zinc oxide ultra_fine powderses 5 parts, CA60 cement 6 parts, outward
Doping REFPAC®100 1 parts, additional mobility improves additive Peramin®AL 200 0.1 parts.
Embodiment 3,55 parts of 12-5mm micropore corundum, 5-3mm carborundum 8 parts, 3-1mm calcium hexaluminate 5 parts, 1-0mm is red
3 parts of pillar, 200 mesh Yongji clays 2 parts, 325 mesh micropore schmigels 9 parts, 325 mesh 3 parts of powder of cutting, zinc silicate zirconium powder 3 parts,
800 mesh andalusite micropowders 4 parts, 1000 mesh automolite micropowders 1 part, 1000 mesh zinc oxide ultra_fine powderses 3 parts, CA60 cement 4 parts, outward
Doping REFPAC®100 1 parts, additional mobility improves additive Peramin®AL 200 0.1 parts.
Being tested with regard to the performance of castable disclosed in the present invention and CN105130464A, test result is as follows
The present invention is tested on an equal amount of stove, test result indicate that, the stove resistance to reduction energy of the present invention,
Wearability, anti-destructive is the most superior, and the liner life-span of stove can reach more than 3 times of comparative example stove liner life-span
Claims (4)
1. a reducing atmosphere castable refractory, is made up of the component of following parts by weight:
Micropore corundum 50-60 part
Carborundum 7-10 part
Calcium hexaluminate 5-8 part
Yongji clay 1-3 part
Andalusite 3-4 part
Micropore schmigel 8-12 part
Cutting powder 3-6 part
Zinc silicate zirconium powder 3-6 part
Andalusite micropowder 3-6 part
Automolite micropowder 1 part
Zinc oxide ultra_fine powders 3-5 part
CA60 cement 3-6 part
Outer doping 1 part
Additional mobility improves additive 0.1 part.
A kind of reducing atmosphere castable refractory the most according to claim 1, it is characterised in that:
12-5mm micropore corundum 50-60 part
5-3mm carborundum 7-10 part
3-1mm calcium hexaluminate 5-8 part
1-0mm andalusite 3-4 part
200 mesh Yongji clay 1-3 parts
325 mesh micropore schmigel 8-12 parts
325 mesh cutting powder 3-6 parts
Zinc silicate zirconium powder 3-6 part
800 mesh andalusite micropowder 3-6 parts
1000 mesh automolite micropowders 1 part
1000 mesh zinc oxide ultra_fine powders 3-5 parts
CA60 cement 3-6 part
Outer doping REFPAC®100,1 parts
Additional mobility improves additive Peramin®AL 200,0.1 part.
A kind of reducing atmosphere castable refractory the most according to claim 1, it is characterised in that: described cutting powder is monocrystalline
In silicon production process produce garbage, described in be mainly composed of SiC75%, elemental silicon 25%.
A kind of reducing atmosphere castable refractory the most according to claim 1, it is characterised in that: it is characterized in that: described
The mesh number of zinc oxide ultra_fine powders be 1000 mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610618594.1A CN106316419A (en) | 2016-08-01 | 2016-08-01 | Refractory castable used in reducing atmosphere |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610618594.1A CN106316419A (en) | 2016-08-01 | 2016-08-01 | Refractory castable used in reducing atmosphere |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106316419A true CN106316419A (en) | 2017-01-11 |
Family
ID=57739636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610618594.1A Pending CN106316419A (en) | 2016-08-01 | 2016-08-01 | Refractory castable used in reducing atmosphere |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106316419A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311672A (en) * | 2017-06-30 | 2017-11-03 | 张静芬 | A kind of aluminium chloride combination castable |
| CN108101561A (en) * | 2017-12-29 | 2018-06-01 | 武汉科技大学 | A kind of stainless steel smelting pouring materialfor steel ladle and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101386541A (en) * | 2007-09-11 | 2009-03-18 | 李朝侠 | Anti-acid(alkalis) etching abrasion-proof and refractory pouring material |
| CN104003741A (en) * | 2014-06-03 | 2014-08-27 | 武汉科技大学 | Tundish covering castable and preparation method thereof |
| CN104355643A (en) * | 2014-12-01 | 2015-02-18 | 张婷 | Castable specially used for coal-injection ducts of 5000T cement kilns |
| CN105237010A (en) * | 2015-11-03 | 2016-01-13 | 张婷 | Miniature type blast furnace branch iron runner castable |
| CN105819876A (en) * | 2014-12-01 | 2016-08-03 | 张婷 | Castable special for 12000T cement kiln coal-injection pipe |
-
2016
- 2016-08-01 CN CN201610618594.1A patent/CN106316419A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101386541A (en) * | 2007-09-11 | 2009-03-18 | 李朝侠 | Anti-acid(alkalis) etching abrasion-proof and refractory pouring material |
| CN104003741A (en) * | 2014-06-03 | 2014-08-27 | 武汉科技大学 | Tundish covering castable and preparation method thereof |
| CN104355643A (en) * | 2014-12-01 | 2015-02-18 | 张婷 | Castable specially used for coal-injection ducts of 5000T cement kilns |
| CN105819876A (en) * | 2014-12-01 | 2016-08-03 | 张婷 | Castable special for 12000T cement kiln coal-injection pipe |
| CN105237010A (en) * | 2015-11-03 | 2016-01-13 | 张婷 | Miniature type blast furnace branch iron runner castable |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311672A (en) * | 2017-06-30 | 2017-11-03 | 张静芬 | A kind of aluminium chloride combination castable |
| CN108101561A (en) * | 2017-12-29 | 2018-06-01 | 武汉科技大学 | A kind of stainless steel smelting pouring materialfor steel ladle and preparation method thereof |
| CN108101561B (en) * | 2017-12-29 | 2020-12-01 | 武汉科技大学 | Steel ladle castable for stainless steel smelting and preparation method thereof |
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Application publication date: 20170111 |
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