CN107117978A - A kind of high-temperature pipe energy-conservation castable - Google Patents
A kind of high-temperature pipe energy-conservation castable Download PDFInfo
- Publication number
- CN107117978A CN107117978A CN201710518482.3A CN201710518482A CN107117978A CN 107117978 A CN107117978 A CN 107117978A CN 201710518482 A CN201710518482 A CN 201710518482A CN 107117978 A CN107117978 A CN 107117978A
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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
- C04B2235/74—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
-
- 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 discloses a kind of high-temperature pipe energy-conservation castable, the castable component is included by mass parts：1 50 55 parts of 8mm light forsterites, 5 10 parts of perlite rawore, 1 10 25 parts of 0mm lightweights calcium hexaluminate, 200 5 10 parts of mesh lightweight pyrophyllite in powder, 325 5 10 parts of mesh light-weight mullite fine powders, 5 10 parts of silicon powder, the Al that 2 ~ 3 μm of particle diameter2O3 5 10 parts of micro mist, 38 parts of aluminate cement, 0.25 5 10 parts of 1.5mm glass beads, 0.31 part of calgon, 0.3 part of explosion-proof fiber.High-temperature pipe of the present invention save castable by stirring and evenly mixing, vibrating forming, maintenance and fire step prepare, with light weight, intensity height, low thermal conductivity factor, high temperature resistant, water absorption rate is low, compactness is good the characteristics of.
Description
Technical field
The present invention relates to technical field of refractory materials, more particularly to a kind of kiln with high-temperature pipe energy-conservation castable and its
Preparation method.
Background technology
In blast furnace, pipeline of hot air furnace etc., in order to ensure temperature of the high-temperature gas in course of conveying, to be built by laying bricks or stones in pipeline
Refractory material.In high temperature kiln in use, being the heat insulation effect of guarantee kiln, while improving inner lining of kiln service life, Chang Cai
Built by laying bricks or stones with being combined by heavy brick and lightweight refracrory, cause inner lining of kiln thermal capacity big, thermal efficiency reduction.Due to traditional lightweight
Energy-saving material has the porosity big, and water absorption rate is high, and intensity is relatively low, the defect of heat preservation and energy conservation effects difference, it is impossible to be directly used in
Working lining, it is necessary to built by laying bricks or stones with multiple layer refractory, also causes caliber increase, and this causes weight of equipment and volume increase, and material disappears
Consumption and cost increase.
The content of the invention
In view of the above-mentioned problems, the present invention is provided, a kind of light weight, intensity are high, thermal conductivity factor is low, good integrity kiln is used
High-temperature pipe energy-conservation castable and preparation method thereof.
To reach above-mentioned purpose, the concrete technical scheme that the present invention is used is as follows：
A kind of high-temperature pipe energy-conservation castable, including following components raw material and parts by weight：Including following components raw material and weight
Part：50-55 parts of 1-8mm light forsterites, 5-10 parts of perlite rawore, 10-25 parts of 1-0mm lightweight calcium hexaluminates, 200 mesh are light
5-10 parts of matter pyrophyllite in powder, 325 5-10 parts of mesh light-weight mullite fine powders, 5-10 parts of silicon powder, the Al that 2 ~ 3 μm of particle diameter2O3 Micro mist
5-10 parts, 3-8 parts of aluminate cement, 5-10 parts of 0.25-1.5mm glass beads, 0.31 part of calgon, explosion-proof fiber 0.3
Part.
It is preferred that, the light forsterite is matched somebody with somebody by particle diameter 1-3mm and 3-8mm two kinds of particles level to be formed, particle diameter 3-8mm
Particle account for the 40% of light forsterite gross weight.
It is preferred that, the granularity of the perlite rawore is 0-1mm.
It is preferred that, the proportion of the liquor alumini chloridi is per cubic centimeter for 1.25 grams.
It is preferred that, the explosion-proof fiber is 3 μm of diameter, length 8mm polypropylene fibre.
A kind of high-temperature pipe preparation method of energy-conservation castable, comprises the following steps：Various raw materials in scheme are added
Enter and mixing is stirred in mixer, the liquor alumini chloridi that addition accounts for its weight 10-12% stirs, the material injection mould being stirred
Tool, vibrating forming carries out fire, temperature is incubated 4h when reaching 100 DEG C, temperature is incubated 8h when reaching 450 DEG C after maintenance 24, you can
Come into operation.
Beneficial effects of the present invention are as follows：The present invention is using light forsterite, lightweight calcium hexaluminate, glass bead conduct
Matrix, material thermal conductivity is small, and chemical property is stable, has good repellence, good heat-insulation effect, resistant to corrosion to acid, alkali.
The present invention uses lightweight pyrophyllite in powder, light-weight mullite fine powder, silicon powder, the Al that 2 ~ 3 μm of particle diameter2O3 Micro mist, makees
For the gap between fine powder filler aggregate, aggregate surface is uneven, increases the specific surface area of the contact between fine powder so that both
With reference to closer；Using liquor alumini chloridi, alumina cement, perlite rawore, silicon powder and Al2O3 Micro mist is used as matrix conjugate
Fine powder and aggregate, are bonded together under high temperature, while can give birth at high temperature by matter by the effect of liquor alumini chloridi chemical bond
Into reaction product aluminum phosphate, the material such as calcium phosphate is firmly combined together aggregate and fine powder, promotes to blend more, so that
Improve the overall bond strength of castable；Perlite rawore therein is a kind of light material, can be expanded with temperature rise volume, can
The defect of shrinkage front change greatly is raised with temperature to change light material, light material contraction distortion will not be caused, under its high temperature
Expansion just can progressively offset the contraction of material, improve the stability of material.It has excellent property than expanded perlite
Can, one is that cost reduction need not be calcined, but expanded perlite is after calcining, will not continue to expansion, with temperature rise only meeting
Light material is caused to shrink.
The present invention is by adding the gas permeability in explosion-proof fiber raising light material under low temperature, and explosion-proof fiber is in fire process
Softening, contraction, fusing, eventually form stomata and are carbonized, and in material internal formation network stomata, open passage, can not only mitigate
Material internal stress, while the internal micropore produced can reduce thermal conductivity again, improves energy-saving effect.Therefore, whole technology is passed through
Scheme can just realize that material internal is firmly combined with, while low heat conduction can be realized, volume, which does not shrink not expanding, keeps volume steady
Fixed performance.
Embodiment
With reference to embodiment, the invention will be further described.
Embodiment 1
A kind of high-temperature pipe energy-conservation castable, including following components raw material and parts by weight：50 parts of 1-8mm light forsterites,
10 parts of perlite rawore, 10 parts of 1-0mm lightweights calcium hexaluminate, 200 5 parts of mesh lightweight pyrophyllite in powder, 325 mesh light-weight mullite fine powders
10 parts, 5 parts of silicon powder, the Al that 2 ~ 3 μm of particle diameter2O3 5 parts of micro mist, 3 parts of aluminate cement, 5 parts of 0.25-1.5mm glass beads, six
0.31 part of sodium metaphosphate, 0.3 part of explosion-proof fiber.
Castable is prepared as follows：Various raw materials in scheme are added mixing is stirred in mixer, addition accounts for it
The liquor alumini chloridi of weight 12% stirs, and the material injection mould being stirred, vibrating forming carries out fire after maintenance 24, temperature
Degree is incubated 4h when reaching 100 DEG C, and temperature is incubated 8h when reaching 450 DEG C, you can come into operation.
Embodiment 2
A kind of high-temperature pipe energy-conservation castable, including following components raw material and parts by weight：55 parts of 1-8mm light forsterites,
5 parts of perlite rawore, 10 parts of 1-0mm lightweights calcium hexaluminate, 200 5 parts of mesh lightweight pyrophyllite in powder, 325 mesh light-weight mullite fine powders 5
Part, 5 parts of silicon powder, the Al that 2 ~ 3 μm of particle diameter2O3 5 parts of micro mist, 3 parts of aluminate cement, 5 parts of 0.25-1.5mm glass beads, six is inclined
0.31 part of sodium phosphate, 0.3 part of explosion-proof fiber.
Castable is prepared as follows：Various raw materials in scheme are added mixing is stirred in mixer, add 11%
Liquor alumini chloridi stirs, and the material injection mould being stirred, vibrating forming carries out fire, temperature reaches 100 after maintenance 24
DEG C when be incubated 4h, temperature is incubated 8h when reaching 450 DEG C, you can come into operation.
Embodiment 3
A kind of high-temperature pipe energy-conservation castable, including following components raw material and parts by weight：53 parts of 1-8mm light forsterites,
5 parts of perlite rawore, 10 parts of 1-0mm lightweights calcium hexaluminate, 200 5 parts of mesh lightweight pyrophyllite in powder, 325 mesh light-weight mullite fine powders 5
Part, 5 parts of silicon powder, the Al that 2 ~ 3 μm of particle diameter2O3 5 parts of micro mist, 3 parts of aluminate cement, 5 parts of 0.25-1.5mm glass beads, six is inclined
0.31 part of sodium phosphate, 0.3 part of explosion-proof fiber.
Castable is prepared as follows：Various raw materials in scheme are added mixing is stirred in mixer, add 11%
Liquor alumini chloridi stirs, and the material injection mould being stirred, vibrating forming carries out fire, temperature reaches 100 after maintenance 24
DEG C when be incubated 4h, temperature is incubated 8h when reaching 450 DEG C, you can come into operation..
Embodiment 4
A kind of high-temperature pipe energy-conservation castable, including following components raw material and parts by weight：52 parts of 1-8mm light forsterites,
5 parts of perlite rawore, 10 parts of 1-0mm lightweights Bo Naite, 200 5 parts of mesh lightweight pyrophyllite in powder, 325 mesh light-weight mullite fine powders 5
Part, 5 parts of silicon powder, the Al that 2 ~ 3 μm of particle diameter2O3 5 parts of micro mist, 3 parts of aluminate cement, 5 parts of 0.25-1.5mm glass beads, six is inclined
0.31 part of sodium phosphate, 0.3 part of explosion-proof fiber.
Castable is prepared as follows：Mixing is stirred at room temperature in the raw material of above-mentioned castable, the water stirring for adding 5% is equal
Fire is carried out after material injection mould that is even, being stirred, vibrating forming, maintenance 64h, temperature is incubated 16h when reaching 110 DEG C, temperature
Degree is incubated 24h when reaching 450 DEG C, is warming up to 1300 DEG C of calcining 15h.
The preferred embodiments of the present invention are the foregoing is only, are technical performance index, bulk density below（g/cm3）, 1.6
~1.8；Cold conditions rupture strength（MPa）, 110 DEG C × 24h >=7.0；1100℃×3h≥8.0；Line changes, 800 DEG C × 24h, ±
0.1；1100 DEG C × 3h, ± 0.05；Thermal conductivity factor W/ (mK), 0.3
Embodiment is not limitation of the present invention, equivalent transformation and modification that those skilled in the art are made according to the present invention, all
Belong to protection scope of the present invention.
Claims (4)
1. a kind of high-temperature pipe energy-conservation castable, it is characterised in that：Including following components raw material and parts by weight：1-8mm lightweights
50-55 parts of forsterite, 5-10 parts of perlite rawore, 10-25 parts of 1-0mm lightweight calcium hexaluminates, 200 mesh lightweight pyrophyllite in powder 5-
10 parts, 325 5-10 parts of mesh light-weight mullite fine powders, 5-10 parts of silicon powder, the Al that 2 ~ 3 μm of particle diameter2O3 5-10 parts of micro mist, aluminate
3-8 parts of cement, 5-10 parts of 0.25-1.5mm glass beads, 0.31 part of calgon, 0.3 part of explosion-proof fiber.
2. high-temperature pipe according to claim 1 energy-conservation energy-conservation castable, it is characterised in that：The light forsterite
By particle diameter 1-3mm and 3-8mm two kinds of particles level with forming, particle diameter 3-8mm particle accounts for light forsterite gross weight
40%。
3. high-temperature pipe according to claim 1 energy-conservation castable, it is characterised in that：The granularity of the perlite rawore
For 0-1mm.
4. according to a kind of high-temperature pipe preparation method for saving castable, it is characterised in that：Comprise the following steps：Will by right
Ask the raw material described in 1 that mixing is stirred at room temperature, the liquor alumini chloridi that addition accounts for its gross weight 10-12% stirs, the thing being stirred
Material injection mould, vibrating forming carries out fire, temperature is incubated 4h when reaching 100 DEG C, temperature is protected when reaching 450 DEG C after maintenance 24
Warm 8h, you can come into operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710518482.3A CN107117978A (en) | 2017-06-30 | 2017-06-30 | A kind of high-temperature pipe energy-conservation castable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710518482.3A CN107117978A (en) | 2017-06-30 | 2017-06-30 | A kind of high-temperature pipe energy-conservation castable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107117978A true CN107117978A (en) | 2017-09-01 |
Family
ID=59720107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710518482.3A Pending CN107117978A (en) | 2017-06-30 | 2017-06-30 | A kind of high-temperature pipe energy-conservation castable |
Country Status (1)
| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109265182A (en) * | 2018-08-23 | 2019-01-25 | 安徽瑞泰新材料科技有限公司 | A kind of anti-corrosion castable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109265182A (en) * | 2018-08-23 | 2019-01-25 | 安徽瑞泰新材料科技有限公司 | A kind of anti-corrosion castable |
| CN109265182B (en) * | 2018-08-23 | 2021-06-08 | 安徽瑞泰新材料科技有限公司 | Anticorrosive castable |
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