CN104355632A - Refractory castable for submerged arc furnace flue gas insulating pipe - Google Patents
Refractory castable for submerged arc furnace flue gas insulating pipe Download PDFInfo
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- CN104355632A CN104355632A CN201410581207.2A CN201410581207A CN104355632A CN 104355632 A CN104355632 A CN 104355632A CN 201410581207 A CN201410581207 A CN 201410581207A CN 104355632 A CN104355632 A CN 104355632A
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Abstract
The invention relates to a refractory castable for a submerged arc furnace flue gas insulating pipe. The refractory castable is prepared from the following components in parts by weight: 20-30 parts of corundum, 10-15 parts of mullite, 10-15 parts of mullite collosol, 10-15 parts of alumina micro powder, 10-20 parts of phenolic resin and 20-25 parts of nano zinc oxide. Particles and fine powder are manufactured after the corundum and mullite are mixed, and the alumina micro powder, mullite collosol, nano zinc oxide and phenolic resin serve as additives, wherein the refractory castable comprises 50 parts of particles and 50 parts of fine powder in parts by weight, the particle size range of the particles is 1.2-1.5 mm, and the particle size of the fine powder is 0.4-0.6 mm.
Description
Technical field
The invention belongs to technical field of refractory materials, particularly relate to a kind of mineral heating furnace flue insulating pipe refractory castable.
Background technology
Mineral heating furnace flue insulating pipe refractory castable refers to the refractory castable of low thermal conductivity and low heat capacity, also claims thermal insulation fire-resistant pouring material.Insulating refractory casting material mainly obtains lower thermal conductivity by the mode introducing pore, and the void content of material its thermal conductivity higher is lower in general, and also lower effect of heat insulation is better for the thermal conductivity of the less material in aperture of pore.Insulating refractory is reducing the energy consumption of high temperature service, is meeting high temperature special process and require there is purposes widely.
Existing mineral heating furnace flue insulating pipe refractory castable Problems existing is: adhere on the inner tubal wall of mineral heating furnace flue insulating pipe, condensation effect is not good, affect construction speed.
Summary of the invention
In view of this, for the deficiencies in the prior art, the mineral heating furnace flue insulating pipe refractory castable the invention provides a kind of attachment, having condensed.
A kind of mineral heating furnace flue insulating pipe refractory castable, makes by comprising following parts by weight component: 20 ~ 30 parts, corundum, mullite 10 ~ 15 parts, mullite sol 10 ~ 15 parts, alumina powder 10 ~ 15 parts, 10 ~ 20 parts, resol, nano zine oxide 20 ~ 25 parts; Particle and fine powder is made after the mixing of corundum, mullite, alumina powder, mullite sol, nano zine oxide, resol are as admixture, wherein, the parts by weight of particle and fine powder are: particle 50 parts, fine powder 50 parts, particle size range is 1.2 ~ 1.5mm, and fine powder particle diameter is 0.4 ~ 0.6mm.
In above-mentioned mineral heating furnace flue insulating pipe refractory castable, corundum, mullite are as aggregate, mullite sol, nano zine oxide can ensure that mineral heating furnace flue insulating pipe refractory castable has good mobility, tack and coagulability, in high temperature environments, nano zine oxide and alumina powder start to react and generate gahnite, so effectively improve the intensity of refractory castable.
Embodiment
A kind of mineral heating furnace flue insulating pipe refractory castable, makes by comprising following parts by weight component: 20 ~ 30 parts, corundum, mullite 10 ~ 15 parts, mullite sol 10 ~ 15 parts, alumina powder 10 ~ 15 parts, 10 ~ 20 parts, resol, nano zine oxide 20 ~ 25 parts; Particle and fine powder is made after the mixing of corundum, mullite, alumina powder, mullite sol, nano zine oxide, resol are as admixture, wherein, the parts by weight of particle and fine powder are: particle 50 parts, fine powder 50 parts, particle size range is 1.2 ~ 1.5mm, and fine powder particle diameter is 0.4 ~ 0.6mm.
Below illustrate above-mentioned mineral heating furnace flue insulating pipe refractory castable:
Embodiment 1
(1) parts by weight for the preparation of mineral heating furnace flue insulating pipe refractory castable raw material are: 20 parts, corundum, mullite 15 parts, mullite sol 15 parts, alumina powder 10 parts, 20 parts, resol, nano zine oxide 20 parts; Particle and fine powder is made after the mixing of corundum, mullite, alumina powder, mullite sol, nano zine oxide, resol are as admixture, and wherein, the parts by weight of particle and fine powder are: particle 50 parts, fine powder 50 parts, particle size range is 1.2mm, and fine powder particle diameter is 0.4mm.The above-mentioned raw material compound as granule fine powder is pulverized, then adds admixture mixing and both obtained mineral heating furnace flue insulating pipe refractory castable.
Its physical performance index is: after 200 DEG C × 12h dries, compressive strength is 13. 1MPa, and volume density is 2. 30g/cm
3; After 600 DEG C × 3h high temperature reheating, the compressive strength of sample is 16. 1MPa, and volume density is 2. 29g/cm
3.
Embodiment 2
(1) parts by weight for the preparation of mineral heating furnace flue insulating pipe refractory castable raw material are: 30 parts, corundum, mullite 10 parts, mullite sol 10 parts, alumina powder 15 parts, 10 parts, resol, nano zine oxide 25 parts; Particle and fine powder is made after the mixing of corundum, mullite, alumina powder, mullite sol, nano zine oxide, resol are as admixture, and wherein, the parts by weight of particle and fine powder are: particle 50 parts, fine powder 50 parts, particle size range is 1.5mm, and fine powder particle diameter is 0.6mm.Pulverized by the above-mentioned raw material compound as granule fine powder, then adding admixture mixing both must containing the refractory castable of nano zine oxide.
Its physical performance index is: after 200 DEG C × 12h dries, compressive strength is 13. 2MPa, and volume density is 2.31g/cm
3; After 600 DEG C × 3h high temperature reheating, the compressive strength of sample is 16. 6MPa, and volume density is 2.30g/cm
3.
As described above, be only preferred embodiment of the present invention, when not limiting scope of the invention process with this, the simple equivalence namely generally done according to the present patent application the scope of the claims and invention description content changes and modifies, and all still remains within the scope of the patent.
Claims (3)
1. a mineral heating furnace flue insulating pipe refractory castable, is characterized in that: make by comprising following parts by weight component: 20 ~ 30 parts, corundum, mullite 10 ~ 15 parts, mullite sol 10 ~ 15 parts, alumina powder 10 ~ 15 parts, 10 ~ 20 parts, resol, nano zine oxide 20 ~ 25 parts; Particle and fine powder is made after the mixing of corundum, mullite, alumina powder, mullite sol, nano zine oxide, resol are as admixture, wherein, the parts by weight of particle and fine powder are: particle 50 parts, fine powder 50 parts, particle size range is 1.2 ~ 1.5mm, and fine powder particle diameter is 0.4 ~ 0.6mm.
2. mineral heating furnace flue insulating pipe refractory castable according to claim 1, is characterized in that: the parts by weight of above-mentioned raw materials are: 20 parts, corundum, mullite 15 parts, mullite sol 15 parts, alumina powder 10 parts, 20 parts, resol, nano zine oxide 20 parts; The parts by weight of particle and fine powder are: particle 50 parts, fine powder 50 parts, and particle size range is 1.2mm, and fine powder particle diameter is 0.4mm.
3. mineral heating furnace flue insulating pipe refractory castable according to claim 1, is characterized in that: the parts by weight of above-mentioned raw materials are: 30 parts, corundum, mullite 10 parts, mullite sol 10 parts, alumina powder 15 parts, 10 parts, resol, nano zine oxide 25 parts; The parts by weight of particle and fine powder are: particle 50 parts, fine powder 50 parts, and particle size range is 1.5mm, and fine powder particle diameter is 0.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410581207.2A CN104355632A (en) | 2014-10-27 | 2014-10-27 | Refractory castable for submerged arc furnace flue gas insulating pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410581207.2A CN104355632A (en) | 2014-10-27 | 2014-10-27 | Refractory castable for submerged arc furnace flue gas insulating pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104355632A true CN104355632A (en) | 2015-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410581207.2A Pending CN104355632A (en) | 2014-10-27 | 2014-10-27 | Refractory castable for submerged arc furnace flue gas insulating pipe |
Country Status (1)
| Country | Link |
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| CN (1) | CN104355632A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102260084A (en) * | 2010-05-25 | 2011-11-30 | 长兴亿维冶金炉料有限公司 | Corundum refractory castable |
-
2014
- 2014-10-27 CN CN201410581207.2A patent/CN104355632A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102260084A (en) * | 2010-05-25 | 2011-11-30 | 长兴亿维冶金炉料有限公司 | Corundum refractory castable |
Non-Patent Citations (2)
| Title |
|---|
| 袁林 等: "《建材工业耐火材料》", 31 August 2012, 化学工业出版社 * |
| 韩行禄: "《不定形耐火材料》", 30 June 1994, 冶金工业出版社 * |
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Application publication date: 20150218 |