CN110105043B - Nano ceramic composite heat-insulation steam-injection boiler tube clamp protection device and preparation method thereof - Google Patents
Nano ceramic composite heat-insulation steam-injection boiler tube clamp protection device and preparation method thereof Download PDFInfo
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- CN110105043B CN110105043B CN201910439291.7A CN201910439291A CN110105043B CN 110105043 B CN110105043 B CN 110105043B CN 201910439291 A CN201910439291 A CN 201910439291A CN 110105043 B CN110105043 B CN 110105043B
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- 239000000919 ceramic Substances 0.000 title claims abstract description 84
- 238000010793 Steam injection (oil industry) Methods 0.000 title claims abstract description 42
- 239000002131 composite material Substances 0.000 title claims abstract description 41
- 238000009413 insulation Methods 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 41
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000011810 insulating material Substances 0.000 claims abstract description 24
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 23
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000002245 particle Substances 0.000 claims abstract description 21
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 17
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 15
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 15
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 210000002268 wool Anatomy 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 239000012784 inorganic fiber Substances 0.000 claims abstract description 8
- 239000000835 fiber Substances 0.000 claims description 16
- RGPUVZXXZFNFBF-UHFFFAOYSA-K diphosphonooxyalumanyl dihydrogen phosphate Chemical compound [Al+3].OP(O)([O-])=O.OP(O)([O-])=O.OP(O)([O-])=O RGPUVZXXZFNFBF-UHFFFAOYSA-K 0.000 claims description 14
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 12
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000440 bentonite Substances 0.000 claims description 5
- 229910000278 bentonite Inorganic materials 0.000 claims description 5
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 239000004005 microsphere Substances 0.000 claims description 5
- 239000005543 nano-size silicon particle Substances 0.000 claims description 5
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 5
- 150000002910 rare earth metals Chemical class 0.000 claims description 5
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000011888 foil Substances 0.000 claims description 4
- 239000003605 opacifier Substances 0.000 claims description 4
- 239000004408 titanium dioxide Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 3
- 229910001570 bauxite Inorganic materials 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 239000012774 insulation material Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 4
- 238000000498 ball milling Methods 0.000 description 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 3
- 229910001928 zirconium oxide Inorganic materials 0.000 description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- C04B30/00—Compositions for artificial stone, not containing binders
- C04B30/02—Compositions for artificial stone, not containing binders containing fibrous materials
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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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5072—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with oxides or hydroxides not covered by C04B41/5025
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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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/65—Coating or impregnation with inorganic materials
- C04B41/67—Phosphates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/02—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets partly surrounding the pipes, cables or protective tubing
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00008—Obtaining or using nanotechnology related materials
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- Materials Engineering (AREA)
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- General Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
Abstract
The invention belongs to the technical field of inorganic heat-insulating materials, and particularly relates to a preparation method of a tube clamp protection device of a nano-ceramic composite heat-insulating steam-injection boiler tube. The feed is prepared from the following raw materials in parts by weight: 20-30 parts of inorganic fiber wool, 5-10 parts of magnesium oxide, 5-15 parts of silicon dioxide, 5-10 parts of 1000-mesh alumina micro powder with the particle size of 800-; the tube clamp protection device of the nano ceramic composite heat-insulation steam-injection boiler tube is a hollow cuboid, one side of the cuboid is provided with a plurality of U-shaped openings, and the arc parts of the U-shaped openings correspond to the tube clamps of the boiler tube in size. The invention improves the heat insulation effect of the pipe clamp, has ultralow heat conductivity coefficient, and has the heat insulation thickness of 1/3-1/5 of common heat insulation materials; the service life of the furnace tube clamp can be prolonged by 3-5 years.
Description
Technical Field
The invention relates to a nano ceramic composite heat-insulating steam-injection boiler tube clamp protection device and a preparation method thereof, belonging to the technical field of inorganic heat-insulating materials.
Background
The pipe strap of the fixed boiler tube that the existing oil field steam injection boiler uses is the shape made of steel material, weld on boiler body outer casing directly, pack the ceramic fiber cotton as the heat insulation layer between boiler tube and outer casing of the boiler, protect the pipe strap part between outer casing of the boiler tube and the back of the boiler tube, the pipe strap part of the boiler tube facing fire is exposed in the burner hearth, when the radiant section temperature rises to above 800 duC, because the pipe strap of the exposed part is heated, conduct the heat to the surface of furnace body through the pipe strap, cause the surface temperature of furnace body to be too high, cause the very large heat loss; more serious, the mechanical property of the material of the pipe clamp is seriously deteriorated after long-term high temperature, so that the material is plastically deformed and carbonized and damaged; due to the damage of the tube clamp of the furnace tube, the furnace tube is bent and deformed, a new tube clamp and the bent furnace tube need to be frequently replaced, so that the material waste is greatly caused, and the maintenance cost is increased.
Disclosure of Invention
The invention aims to provide a tube clamp protection device for a nano ceramic composite heat-insulating steam-injection boiler tube.
The technical scheme adopted by the invention is as follows: a tube clamp protection device for a nano ceramic composite heat-insulation steam-injection boiler tube is prepared from the following raw materials in parts by weight: 20-30 parts of inorganic fiber wool, 5-10 parts of magnesium oxide, 5-15 parts of silicon dioxide, 5-10 parts of 1000-mesh alumina micro powder with the particle size of 800-;
the tube clamp protection device of the nano ceramic composite heat-insulation steam-injection boiler tube is a hollow cuboid, one side of the cuboid is provided with a plurality of U-shaped openings, and the arc parts of the U-shaped openings correspond to the tube clamps of the boiler tube in size.
Preferably, in the above device for protecting the tube clamp of the nano ceramic composite heat-insulating steam-injection boiler tube, the inorganic fiber wool is one of aluminum silicate fiber wool and ceramic fiber wool.
Preferably, in the above device for protecting the tube clamp of the nano ceramic composite heat-insulating steam-injection boiler tube, the silica is nano silica.
Preferably, in the above device for protecting the pipe clamp of the nano ceramic composite heat-insulating steam-injection boiler pipe, the opacifier is one of alumina micropowder, silica micropowder and titanium dioxide micropowder.
Preferably, in the above device for protecting the tube clamp of the nano ceramic composite heat-insulating steam-injection boiler tube, the particle diameter of the opacifier is 0.5-3.5 μm.
Preferably, the nano ceramic composite heat-insulating steam-injection boiler tube clamp protection device comprises, by weight, 15-40 parts of aluminum dihydrogen phosphate, 5-10 parts of zirconia micro powder, 5-10 parts of magnesia micro powder, 5-20 parts of alumina micro powder, 10-35 parts of ceramic porous microspheres, 5-20 parts of ceramic fiber powder, 5-10 parts of rare earth drier, 10-30 parts of far infrared ceramic mud, 5-10 parts of bentonite, 10-20 parts of high alumina, 5-10 parts of titanium oxide and 15-25 parts of deionized water.
A preparation method of a nanometer ceramic composite heat-insulation steam-injection boiler tube clamp protection device comprises the following steps:
1) mixing: adding 20-30 parts of inorganic fiber wool, 5-10 parts of magnesium oxide, 10-15 parts of silicon dioxide, 5-10 parts of alumina with the particle size of 800-;
2) putting the mixture prepared in the step 1) into a mold with a reflecting film laid, pressurizing and maintaining the pressure for 3-5 hours, and demolding;
3) drying at 200 ℃ and 500 ℃ for 5-10 h; cooling to room temperature, spraying nanometer ceramic heat insulating material on the surface, and drying at 200-500 deg.C for 2-4 h.
Preferably, in the above preparation method of the tube clamp protection device for the nano-ceramic composite heat-insulating steam-injection boiler tube, in step 2), the reflective film is an aluminum foil.
Preferably, in the above preparation method of the tube clamp protection device for the nano-ceramic composite heat-insulating steam-injection boiler tube, in the step 2), the pressurization pressure is 75Mpa-100 Mpa.
Preferably, in the above preparation method of the tube clamp protection device for the nano ceramic composite heat-insulating steam injection boiler tube, in the step 3), the spraying thickness of the nano ceramic heat-insulating material is 1-5 mm.
The invention has the following beneficial effects:
the tube clamp protection device for the nano ceramic composite heat-insulating steam-injection boiler tube, which is prepared by the invention, can better protect the tube clamp of the boiler tube and improve the heat insulation effect on the tube clamp, has ultralow heat conductivity coefficient, particularly excellent low heat conductivity in a high-temperature region, and has heat insulation thickness of 1/3-1/5 of common heat-insulating materials; the tube clamp protection device of the nano ceramic composite heat-insulating steam-injection boiler tube can prolong the service life of the tube clamp of the boiler tube by 3-5 years.
Drawings
FIG. 1 is a tube clamp protection device of a nano ceramic composite heat-insulating steam-injection boiler tube prepared by the invention.
Detailed Description
Example 1 nanometer ceramic composite heat insulation steam injection boiler tube clamp protection device
The nanometer ceramic composite heat-insulating steam-injection boiler tube clamp protection device is prepared from the following raw materials in parts by weight: 30 parts of aluminum silicate fiber velvet, 5 parts of magnesium oxide, 10 parts of nano silicon dioxide, 10 parts of 800-mesh aluminum oxide micro powder, 10 parts of silicon dioxide micro powder with the particle size of 0.5-3.5 mu m, 20 parts of aluminum dihydrogen phosphate and 15 parts of nano ceramic heat-insulating material.
The nano ceramic heat-insulating material is prepared from the following raw materials in parts by weight: 15 parts of aluminum dihydrogen phosphate, 5 parts of 800-mesh zirconium oxide micro powder with the particle size of 200-.
The preparation method of the nano ceramic composite heat-insulating steam-injection boiler tube clamp protection device comprises the following steps:
1) 30 parts of aluminum silicate fiber wool, 5 parts of magnesium oxide, 10 parts of nano silicon dioxide, 10 parts of 800-mesh aluminum oxide micro powder, 10 parts of silicon dioxide micro powder with the particle size of 0.5-3.5 mu m and 20 parts of aluminum dihydrogen phosphate are put into a stirrer and stirred for 10-15min under the condition of the rotating speed of 100 plus materials and 200 r/min;
2) putting the mixture prepared in the step 1) into a mold with a reflection film, pressurizing to 75-100 Mpa, maintaining the pressure for 3-5h, and demolding;
3) preparing a nano ceramic heat-insulating material, namely adding 15 parts of aluminum dihydrogen phosphate, 5 parts of zirconia micro powder, 5 parts of magnesia micro powder, 5 parts of alumina micro powder, 10 parts of ceramic porous microspheres and 10 parts of ceramic fiber powder into 15 parts of deionized water, stirring at the speed of 300r/min for 15min, adding 5 parts of rare earth drier, 10 parts of far infrared ceramic mud, 5 parts of bentonite, 10 parts of high alumina and 5 parts of titanium oxide, and performing ball milling for 6h to obtain the nano ceramic heat-insulating material;
4) drying the tube clamp protection device of the nano ceramic composite heat-insulating steam-injection boiler tube prepared in the step 2) for 5 hours at the temperature of 200 ℃; cooling to room temperature, spraying nanometer ceramic heat insulating material with a thickness of 1mm on the surface, and drying at 200 deg.C for 2 hr.
The prepared nano ceramic composite heat-insulating steam-injection boiler tube clamp protection device is a hollow cuboid, two U-shaped openings are formed in one side of the cuboid, and the arc portions of the U-shaped openings correspond to the tube clamps of the boiler tube in size, as shown in fig. 1.
Embodiment 2 nanometer ceramic composite heat insulation steam injection boiler tube clamp protection device
The nanometer ceramic composite heat-insulating steam-injection boiler tube clamp protection device is prepared from the following raw materials in parts by weight: 25 parts of ceramic fiber velvet, 10 parts of magnesium oxide, 5 parts of nano silicon dioxide, 5 parts of alumina micro powder with the particle size of 800 meshes, 10 parts of titanium dioxide micro powder with the particle size of 0.5-3.5 mu m, 15 parts of aluminum dihydrogen phosphate and 30 parts of nano ceramic heat-insulating material.
The nano ceramic heat-insulating material is prepared from the following raw materials in parts by weight: 15 parts of aluminum dihydrogen phosphate, 5 parts of 800-mesh zirconium oxide micro powder with the particle size of 200-.
The preparation method of the nano ceramic composite heat-insulating steam-injection boiler tube clamp protection device comprises the following steps:
1) adding 25 parts of ceramic fiber wool, 10 parts of magnesium oxide, 5 parts of nano-silica, 5 parts of alumina micro-powder with the particle size of 800 meshes, 10 parts of titanium dioxide micro-powder with the particle size of 0.5-3.5 mu m and 15 parts of aluminum dihydrogen phosphate into a stirrer, and stirring for 10-15min at the rotating speed of 100-200 r/min;
2) putting the mixture prepared in the step 1) into a mold with an aluminum foil laid, pressurizing to 75Mpa, maintaining the pressure for 3-5h, and demolding;
3) preparing a nano ceramic heat-insulating material, namely adding 15 parts of aluminum dihydrogen phosphate, 5 parts of zirconia micro powder, 5 parts of magnesia micro powder, 5 parts of alumina micro powder, 10 parts of ceramic porous microspheres and 10 parts of ceramic fiber powder into 15 parts of deionized water, stirring at the speed of 300r/min for 15min, adding 5 parts of rare earth drier, 10 parts of far infrared ceramic mud, 5 parts of bentonite, 10 parts of high alumina and 5 parts of titanium oxide, and performing ball milling for 6h to obtain the nano ceramic heat-insulating material;
4) drying the tube clamp protection device of the nano ceramic composite heat-insulating steam-injection boiler tube prepared in the step 2) for 5 hours at the temperature of 200 ℃; cooling to room temperature, spraying nanometer ceramic heat insulating material with a thickness of 2mm on the surface, and drying at 200 deg.C for 2 hr.
The prepared nano ceramic composite heat-insulating steam-injection boiler tube clamp protection device is a hollow cuboid, two U-shaped openings are formed in one side of the cuboid, and the arc portions of the U-shaped openings correspond to the tube clamps of the boiler tube in size.
Example 3 nanometer ceramic composite heat insulation steam injection boiler tube clamp protection device
The nanometer ceramic composite heat-insulating steam-injection boiler tube clamp protection device is prepared from the following raw materials in parts by weight: 30 parts of ceramic fiber velvet, 5 parts of magnesium oxide, 5 parts of nano silicon dioxide, 5 parts of alumina micro powder with the particle size of 800 meshes, 10 parts of alumina micro powder with the particle size of 0.5-3.5 mu m, 15 parts of aluminum dihydrogen phosphate and 30 parts of nano ceramic heat-insulating material.
The nano ceramic heat-insulating material is prepared from the following raw materials in parts by weight: 15 parts of aluminum dihydrogen phosphate, 5 parts of 800-mesh zirconium oxide micro powder with the particle size of 200-.
The preparation method comprises the following steps:
1) 30 parts of ceramic fiber wool, 5 parts of magnesium oxide, 5 parts of silicon dioxide, 5 parts of alumina micro powder with the particle size of 800 meshes, 10 parts of alumina micro powder with the particle size of 0.5-3.5 mu m and 15 parts of aluminum dihydrogen phosphate are put into a stirrer and stirred for 10-15min under the condition that the rotating speed is 100 plus materials and the speed is 200 r/min;
2) putting the mixture prepared in the step 1) into a mold with an aluminum foil laid, pressurizing to 75Mpa, maintaining the pressure for 3 hours, and demolding;
3) preparing a nano ceramic heat-insulating material, namely adding 15 parts of aluminum dihydrogen phosphate, 5 parts of zirconia micro powder, 5 parts of magnesia micro powder, 5 parts of alumina micro powder, 10 parts of ceramic porous microspheres and 10 parts of ceramic fiber powder into 15 parts of deionized water, stirring at the speed of 300r/min for 15min, adding 5 parts of rare earth drier, 10 parts of far infrared ceramic mud, 5 parts of bentonite, 10 parts of high alumina and 5 parts of titanium oxide, and performing ball milling for 6h to obtain the nano ceramic heat-insulating material;
4) drying the tube clamp protection device of the nano ceramic composite heat-insulating steam-injection boiler tube prepared in the step 2) for 5 hours at the temperature of 200 ℃; cooling to room temperature, spraying nanometer ceramic heat insulating material with a thickness of 2mm on the surface, and drying at 200 deg.C for 2 hr.
The prepared nano ceramic composite heat-insulating steam-injection boiler tube clamp protection device is a hollow cuboid, two U-shaped openings are formed in one side of the cuboid, and the arc portions of the U-shaped openings correspond to the tube clamps of the boiler tube in size.
Claims (5)
1. A tube clamp protection device for a nano ceramic composite heat-insulation steam-injection boiler tube is characterized by being prepared from the following raw materials in parts by weight: 20-30 parts of inorganic fiber wool, 5-10 parts of magnesium oxide, 5-15 parts of silicon dioxide, 5-10 parts of 1000-mesh alumina micro powder with the particle size of 800-;
the pipe clamp protection device of the nano ceramic composite heat-insulation steam-injection boiler pipe is a hollow cuboid, one side of the cuboid is provided with a plurality of U-shaped openings, and the arc parts of the U-shaped openings correspond to the pipe clamps of the boiler pipe in size;
the inorganic fiber velvet is one of aluminum silicate fiber velvet or ceramic fiber velvet;
the silicon dioxide is nano silicon dioxide;
the opacifier is one of alumina micro powder, silica micro powder and titanium dioxide micro powder;
the diameter of the opacifier particles is 0.5-3.5 μm;
the nano ceramic heat-insulating material is composed of the following raw materials, by weight, 15-40 parts of aluminum dihydrogen phosphate, 5-10 parts of zirconia micro powder, 5-10 parts of magnesia micro powder, 5-20 parts of alumina micro powder, 10-35 parts of ceramic porous microspheres, 5-20 parts of ceramic fiber powder, 5-10 parts of rare earth drier, 10-30 parts of far infrared ceramic mud, 5-10 parts of bentonite, 10-20 parts of bauxite, 5-10 parts of titanium oxide and 15-25 parts of deionized water;
the preparation method of the nanometer ceramic composite heat-insulating steam-injection boiler tube clamp protection device comprises the following steps:
1) mixing: adding 20-30 parts of inorganic fiber wool, 5-10 parts of magnesium oxide, 10-15 parts of silicon dioxide, 5-10 parts of alumina with the particle size of 800-;
2) putting the mixture prepared in the step 1) into a mold with a reflecting film laid, pressurizing and maintaining the pressure for 3-5 hours, and demolding;
3) drying at 200 ℃ and 500 ℃ for 5-10 h; cooling to room temperature, spraying nanometer ceramic heat insulating material on the surface, and drying at 200-500 deg.C for 2-4 h.
2. The preparation method of the tube clamp protection device of the nano-ceramic composite heat-insulating steam-injection boiler tube of claim 1, which is characterized by comprising the following steps:
1) mixing: adding 20-30 parts of inorganic fiber wool, 5-10 parts of magnesium oxide, 10-15 parts of silicon dioxide, 5-10 parts of alumina with the particle size of 800-;
2) putting the mixture prepared in the step 1) into a mold with a reflecting film laid, pressurizing and maintaining the pressure for 3-5 hours, and demolding;
3) drying at 200 ℃ and 500 ℃ for 5-10 h; cooling to room temperature, spraying nanometer ceramic heat insulating material on the surface, and drying at 200-500 deg.C for 2-4 h.
3. The method for preparing the tube clamp protection device of the nano-ceramic composite heat-insulating steam-injection boiler tube according to claim 2, wherein in the step 2), the reflective film is aluminum foil.
4. The method for preparing the tube clamp protection device of the nano-ceramic composite heat-insulating steam-injection boiler tube according to claim 2, wherein in the step 2), the pressurizing pressure is 75Mpa-100 Mpa.
5. The method for preparing the tube clamp protection device of the nano ceramic composite heat-insulating steam injection boiler tube according to claim 2, wherein in the step 3), the spraying thickness of the nano ceramic heat-insulating material is 1-5 mm.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102101769A (en) * | 2009-12-16 | 2011-06-22 | 上海船舶工艺研究所 | Nano silicon dioxide microporous heat insulator and preparation method thereof |
| WO2013007957A1 (en) * | 2011-07-13 | 2013-01-17 | Saint-Gobain Isover | High-performance thermal insulation materials |
| CN102942352A (en) * | 2012-11-19 | 2013-02-27 | 无锡市明江保温材料有限公司 | Nano-pore insulating pipe shell and preparation method thereof |
| CN106065204A (en) * | 2016-06-12 | 2016-11-02 | 深圳市凯盛科技工程有限公司 | A kind of energy-saving industrial furnace |
| CN106752139A (en) * | 2016-12-13 | 2017-05-31 | 无锡市明江保温材料有限公司 | A kind of heat power equipment and pipeline nano-thermal-insulating coating and preparation method thereof |
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| CN102101769A (en) * | 2009-12-16 | 2011-06-22 | 上海船舶工艺研究所 | Nano silicon dioxide microporous heat insulator and preparation method thereof |
| WO2013007957A1 (en) * | 2011-07-13 | 2013-01-17 | Saint-Gobain Isover | High-performance thermal insulation materials |
| CN102942352A (en) * | 2012-11-19 | 2013-02-27 | 无锡市明江保温材料有限公司 | Nano-pore insulating pipe shell and preparation method thereof |
| CN106065204A (en) * | 2016-06-12 | 2016-11-02 | 深圳市凯盛科技工程有限公司 | A kind of energy-saving industrial furnace |
| CN106752139A (en) * | 2016-12-13 | 2017-05-31 | 无锡市明江保温材料有限公司 | A kind of heat power equipment and pipeline nano-thermal-insulating coating and preparation method thereof |
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| CN110105043A (en) | 2019-08-09 |
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