CN101676240B - Method for manufacturing low-corrosion radiation-resistant heat-insulating material - Google Patents
Method for manufacturing low-corrosion radiation-resistant heat-insulating material Download PDFInfo
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- CN101676240B CN101676240B CN2008101208406A CN200810120840A CN101676240B CN 101676240 B CN101676240 B CN 101676240B CN 2008101208406 A CN2008101208406 A CN 2008101208406A CN 200810120840 A CN200810120840 A CN 200810120840A CN 101676240 B CN101676240 B CN 101676240B
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- zeyssatite
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- thermal insulation
- insulation material
- insulating material
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 230000005855 radiation Effects 0.000 title claims abstract description 12
- 238000005260 corrosion Methods 0.000 title claims abstract description 11
- 239000011810 insulating material Substances 0.000 title abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 52
- 238000001035 drying Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000000748 compression moulding Methods 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 24
- 239000000835 fiber Substances 0.000 claims description 13
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 12
- 239000000292 calcium oxide Substances 0.000 claims description 12
- 235000012255 calcium oxide Nutrition 0.000 claims description 12
- 229910052739 hydrogen Inorganic materials 0.000 claims description 12
- 239000001257 hydrogen Substances 0.000 claims description 12
- 239000012774 insulation material Substances 0.000 claims description 12
- 239000004576 sand Substances 0.000 claims description 12
- 239000000377 silicon dioxide Substances 0.000 claims description 12
- 238000005303 weighing Methods 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 4
- 239000007858 starting material Substances 0.000 claims description 4
- 238000010009 beating Methods 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000005272 metallurgy Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 230000032683 aging Effects 0.000 abstract description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract description 2
- 239000000920 calcium hydroxide Substances 0.000 abstract description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 239000006004 Quartz sand Substances 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 231100000956 nontoxicity Toxicity 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 238000004321 preservation Methods 0.000 abstract 1
- 239000012783 reinforcing fiber Substances 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000003556 assay Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
Images
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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/18—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/26—Corrosion of reinforcement 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Thermal Insulation (AREA)
Abstract
The invention relates to a method for manufacturing a novel low-corrosion radiation-resistant heat-insulating material, which comprises the following raw materials of, by weight, 15% -17% of superfine quartz sand, 15% -20% of diatomite active silicon, 10% -15% of active calcium hydroxide, 2% -3% of reinforcing fiber and 50% -55% of water. The manufacturing process comprises the following steps: through burdening → mixing and stirring → gel reaction → compression molding → hydrothermal reaction → drying in baking house → packaging of finished product. The novel heat-insulating material has the advantages of small heat conductivity coefficient, high strength, low corrosion, radiation resistance, no toxicity, no combustion, aging resistance and the like, and is widely applied to pipe network heat preservation in the fields of nuclear power, electric power, metallurgy, chemical industry, military industry and the like.
Description
One, technical field
The present invention relates to nuclear power, thermoelectric method of manufacture with the lagging material novel low-corrosion radiation resistant heat insulating material.Be widely used in equipment pipe network insulations such as nuclear power, thermoelectricity, metallurgy, chemical industry, military project.
Two, background technology:
At present; Be used for Nuclear power plants austenitic stainless steel heat distribution pipeline insulation of equipment material and rely on import, the domestic blank that still belongs to, domestic manufacturer produces the general density height of lagging material; Thermal conductivity is high; Want special technical requirement because of the insulation of Nuclear power plants austenitic stainless steel, hang down the burn into radiation hardness, used thermal insulation material has the gamma ray of doses and the anti-ageing performance under the neutron irradiation environment again.Though there is numerous thermal insulation material manufacturers in China, also lack the IC and the F ion content special production line of ripe with a whole set of production so far, do not reach the heat-insulating property requirement.
Three, summary of the invention
To above-mentioned thermal insulation material existing problems, the present invention provides the method for manufacture of a kind of Nuclear power plants to the novel thermal insulation material of a kind of low-corrosion radiation resistant of the special-purpose high-quality thermal insulation material of austenitic stainless steel.
1, starting material are formed and proportioning: raw-material composition is ultra-fine silica sand, zeyssatite activated silica, active hydrogen quicklime, fortifying fibre and water.Be by weight percentage: ultra-fine silica sand 15%-17%, zeyssatite activated silica 15%-20%, active hydrogen quicklime 10%-15%, fortifying fibre 2%-3% adds water 50%-55%.
The optimized percentage example is: ultra-fine silica sand 16%, and zeyssatite activated silica 18%, active hydrogen quicklime 12.5%, fortifying fibre 2.5% adds water 51%.
2, system is selected process step:
(1) batching: with ultra-fine silica sand, zeyssatite activated silica, active hydrogen quicklime, fortifying fibre, water, stirring → (3) gel reaction → (4) compression moulding → (5) hydro-thermal reaction → (6) drying room drying → (7) finished product packing is mixed in precentagewise example weighing → (2).
Be described further below in conjunction with implementing process step of the present invention:
At first carry out material purity preparation work: extract warm diatomaceous impurity removal process with a kind of wet method; Make the zeyssatite purity of gained good, to extract removal of impurities be the treatment process in early stage of raw material to active high, wet zeyssatite, is directly connected to the synthetic quality of novel low-corrosion radiation resistant heat insulating material.It is active to have improved zeyssatite through the making beating removal of impurities, is called the zeyssatite activated silica.Lime improves the calcium hydroxide activity through clearing up.Fortifying fibre is for use through clearing up.
The first step, batching: take by weighing ultra-fine silica sand 15%-17% at first by weight percentage, zeyssatite activated silica 15%-20%, active hydrogen quicklime 10%-15%, fortifying fibre 2%-3% adds water 50%-55%.
Second step: mix and stir, various starting material carry out mixing and stirring, churning time 30 minutes.
The 3rd step, gel reaction: temperature of reaction is reacted at 208 ℃-210 ℃.
The 4th step, compression moulding: with the compression moulding of goods mould, goods pressure 8Mpa-10mpa.
The 5th step, hydro-thermal reaction: get into hydro-thermal reaction to the compression moulding goods, temperature is controlled at 150 ℃-170 ℃, and pressure-controlling is at 0.7Mpa-0.8mpa.
The 6th step, drying room drying: it is dry to get into drying room to goods, 117 ℃-120 ℃ of cold zone temperature, 130 ℃-135 ℃ of middle warm area temperature, 140 ℃-145 ℃ of high-temperature zone temperature.
The 7th step, finished product packing.
3, products characteristics, advantage and effect:
Characteristics such as it is light that novel low-corrosion radiation resistant heat insulating material has density, and thermal conductivity is little, and intensity is high, hangs down corrosion, and radiation hardness is nontoxic, does not fire, and is ageing-resistant.Be widely used in nuclear power, electric power, metallurgy, chemical industry, field pipe network insulations such as military project.It is international advanced that product reaches, and the performance index of product technologies contrasts as follows:
| The Interventions Requested title | Unit | National standard technical indicator GB/T10699-1998 | Assay index of the present invention | Japan A&A assay |
| Density | Kg/m 3 | ≤170 | 120 | 130 |
| Ultimate compression strength | Mpa | ≥0.50 | 0.70 | 0.69 |
| Folding strength | Mpa | ≥0.30 | 0.34 | 0.31 |
| Thermal conductivity | w/m.k | ≤0.065 | 0.052 | 0.064 |
| Linear shrinkage ratio | ％ | ≤2 | 2 | 2.3 |
| Cl -Content | ppm | ≤30 | 16 | 17.5 |
| F1 -Content | ppm | ≤30 | 15 | 16 |
| SIO 3 -2Content | ppm | ≥600 | 715 | 621 |
| Na +Content | ppm | ≥300 | 4.20 | 415 |
Product uses through Qinshan nuclear power plant and Daya Bay nuclear power plant, and reflection is good, has good social and economic benefit.
Four, description of drawings:
Fig. 1 is the manufacturing approach craft flow chart of steps of novel low-corrosion radiation resistant heat insulating material of the present invention.
Below in conjunction with Fig. 1 implementation step of the present invention is described further:
The first step, batching: take by weighing ultra-fine silica sand 15%-17% at first by weight percentage, zeyssatite activated silica 15%-20%, active hydrogen quicklime 10%-15%, fortifying fibre 2%-3% adds water 50%-55%.
Second step, mixing are stirred: various starting material carry out mixing and stirring, churning time 30 minutes.
The 3rd step, gel reaction: temperature of reaction reflects at 208-210 ℃.
The 4th step, compression moulding: with the compression moulding of goods mould, goods pressure 8Mpa-10Mpa.
The 5th step, hydro-thermal reaction: get into hydro-thermal reaction to the compression moulding goods, temperature is controlled at 150 ℃-170 ℃, and pressure-controlling is at 0.7Mpa-0.8Mpa.
The 6th step, drying room drying: it is dry to get into drying room to goods, 117 ℃-120 ℃ of cold zone temperature, 130 ℃-135 ℃ of middle warm area temperature, 140 ℃-145 ℃ of high-temperature zone temperature.
The 7th step, finished product packing.
Five, embodiment:
Embodiment 1:
1, batching: take by weighing ultra-fine silica sand 16%, zeyssatite activated silica 18%, active hydrogen quicklime 12.5%, fortifying fibre 2.5%, and water 51%, precentagewise example batching.
2, mix stirring: carry out mixing and stirring to ultra-fine silica sand, zeyssatite activated silica, active hydrogen quicklime, fortifying fibre, water.
3, the gel reflection is answered: temperature of reaction is controlled at 208 ℃-210 ℃.
4, compression moulding: carry out the mould compacting to the good slip of reaction, pressure-controlling is at 8Mpa-10Mpa.
5, hydro-thermal reaction is sent into the entering hydro-thermal reaction to moulded products, and temperature is controlled at 150 ℃-170 ℃, and pressure-controlling is at 0.7Mpa-0.8Mpa.
6, drying room is dry: it is dry to get into drying pit to goods, 117 ℃-120 ℃ of cold zone temperature, 130 ℃-135 ℃ of middle warm area temperature, 140 ℃-145 ℃ of high-temperature zone temperature, 40-48 hours time.
7, finished product packing: be packaged into the warehouse to the goods of oven dry through quality inspection check entering.
Embodiment 2:
1, takes by weighing ultra-fine silica sand 15%; Zeyssatite activated silica 19%; Active hydrogen quicklime 12%; Fortifying fibre 3%; Water 51%.
2, it is identical with embodiment 1 that embodiment second went on foot for the 7th step.
Claims (5)
1. the method for manufacture of low-corrosion radiation resistant thermal insulation material; It is characterized in that it by following raw materials by weight proportioning is: ultra-fine silica sand 15%-17%; Zeyssatite activated silica 15-20%; Active hydrogen quicklime 10%-15%; Fortifying fibre 2%-3% adds water 50%-55%, the method for manufacture of this thermal insulation material: (1) batching: stirring → (3) gel reaction → (4) compression moulding → (5) hydro-thermal reaction → (6) drying room drying → (7) finished product packing is mixed in ultra-fine silica sand, zeyssatite activated silica, active hydrogen quicklime, fortifying fibre and water precentagewise example weighing → (2); Described zeyssatite activated silica is purified the zeyssatite starting material and is made through the making beating removal of impurities.
2. by the method for manufacture of the described thermal insulation material of claim 1, it is characterized in that raw material by weight per distribution ratio consist of: ultra-fine silica sand 16%, zeyssatite activated silica 18%, active hydrogen quicklime 12.5%, fortifying fibre 2.5% adds water 51%.
3. by the method for manufacture of the described thermal insulation material of claim 1, it is characterized in that described gel reaction temperature is at 208 ℃-210 ℃.
4. by the method for manufacture of the described thermal insulation material of claim 1, it is characterized in that described compression moulding with the goods pressure-controlling at 8MPa-10MPa.
5. by the method for manufacture of the described thermal insulation material of claim 1, it is characterized in that described hydro-thermal reaction, temperature is controlled at 150 ℃-170 ℃, and pressure-controlling is at 0.7MPa-0.8MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101208406A CN101676240B (en) | 2008-09-18 | 2008-09-18 | Method for manufacturing low-corrosion radiation-resistant heat-insulating material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101208406A CN101676240B (en) | 2008-09-18 | 2008-09-18 | Method for manufacturing low-corrosion radiation-resistant heat-insulating material |
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| Publication Number | Publication Date |
|---|---|
| CN101676240A CN101676240A (en) | 2010-03-24 |
| CN101676240B true CN101676240B (en) | 2012-05-09 |
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| CN2008101208406A Expired - Fee Related CN101676240B (en) | 2008-09-18 | 2008-09-18 | Method for manufacturing low-corrosion radiation-resistant heat-insulating material |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1761635A (en) * | 2003-02-07 | 2006-04-19 | 联合矿物产品公司 | Crack-resistant dry refractory |
| CN101172870A (en) * | 2007-10-18 | 2008-05-07 | 李哲 | Fireproof thermal insulation material |
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2008
- 2008-09-18 CN CN2008101208406A patent/CN101676240B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1761635A (en) * | 2003-02-07 | 2006-04-19 | 联合矿物产品公司 | Crack-resistant dry refractory |
| CN101172870A (en) * | 2007-10-18 | 2008-05-07 | 李哲 | Fireproof thermal insulation material |
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| Publication number | Publication date |
|---|---|
| CN101676240A (en) | 2010-03-24 |
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Owner name: ZHEJIANG ASK TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ASIKE NEW-TYPE INSULATING MATERIALS CO., LTD., ZHEJIANG Effective date: 20131212 |
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Effective date of registration: 20131212 Address after: 312473 Zhejiang province Shengzhou city Chongren town of Mulberry Village Patentee after: ZHEJIANG ASKER TECHNOLOGY CO., LTD. Address before: 312473 Zhejiang province Shengzhou city Chongren town of Mulberry Village Patentee before: Asike New-Type Insulating Materials Co., Ltd., Zhejiang |
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Owner name: ZHEJIANG ASKE BUILDING MATERIALS TECHNOLOGY CO., L Free format text: FORMER NAME: ZHEJIANG ASK TECHNOLOGY CO., LTD. |
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Address after: O Industrial Park of Chongren town Shaoxing city Shengzhou City, Zhejiang province 312473 Patentee after: ZHEJIANG ASK BUILDING MATERIALS TECHNOLOGY CO., LTD. Address before: 312473 Zhejiang province Shengzhou city Chongren town of Mulberry Village Patentee before: ZHEJIANG ASKER TECHNOLOGY CO., LTD. |
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