CN104455930A - Smoke heat preservation pipe with light high-strength heat insulation refractory castable layer - Google Patents
Smoke heat preservation pipe with light high-strength heat insulation refractory castable layer Download PDFInfo
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- CN104455930A CN104455930A CN201410581188.3A CN201410581188A CN104455930A CN 104455930 A CN104455930 A CN 104455930A CN 201410581188 A CN201410581188 A CN 201410581188A CN 104455930 A CN104455930 A CN 104455930A
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- refractory castable
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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
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating 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
- 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
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- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Ceramic Products (AREA)
- Thermal Insulation (AREA)
Abstract
A smoke heat preservation pipe with a light high-strength heat insulation refractory castable layer comprises a steel pipe body, the light high-strength heat insulation refractory castable layer is arranged on the pipeline inner wall of the steel pipe body, and iron gauze is arranged in the light high-strength heat insulation refractory castable layer. The light high-strength heat insulation refractory castable layer and the pipeline inner wall of the steel pipe body are relatively fixed through a first V-type threaded cramp, a second V-type threaded cramp and the iron gauze. The light high-strength heat insulation refractory castable layer is formed by the following raw materials: kyanite, wollastonite, magnesium carbonate, bubble zirconia, alumina micro powder, silicon dioxide micro powder and aluminum phosphate, wherein, the kyanite, the wollastonite, the magnesium carbonate, zirconium oxide fibers and the bubble zirconia are aggregate, and the alumina micro powder, the silicon dioxide micro powder and the aluminum phosphate are powder.
Description
Technical field
The present invention relates to pipeline heat-insulating technology field, particularly a kind of flue gas thermal insulation pipe with Lightweight high-strength heat-insulation refractory castable layer.
Background technique
The simple thermal insulating material of the many employings of existing mineral heating furnace flue insulation pipe carries out pipe insulation, because thermal insulating material does not possess intensity, in long running, can occur that pipeline is inhaled flat; Coming off due to thermal insulating material, reduces flue-gas temperature, fume afterheat generating efficiency is obviously reduced simultaneously.
Summary of the invention
In view of this, be necessary to provide a kind of high insulating effect and the flue gas thermal insulation pipe with Lightweight high-strength heat-insulation refractory castable layer of long service life.
There is a flue gas thermal insulation pipe for Lightweight high-strength heat-insulation refractory castable layer, comprise steel pipe main body, the inner-walls of duct of steel pipe main body is provided with Lightweight high-strength heat-insulation refractory castable layer, in Lightweight high-strength heat-insulation refractory castable layer, be provided with chain link fence.Wherein, the inner-walls of duct of steel pipe main body welds the first shape-V thread dog, second shape-V thread dog, the tip of the first shape-V thread dog is fixedly connected with the inner-walls of duct of steel pipe main body, two separating ends of the first shape-V thread dog extend to chain link fence and are fixedly connected with chain link fence, two separating ends of the second shape-V thread dog are fixedly connected with the inner-walls of duct of steel pipe main body, the tip of the second shape-V thread dog extends to chain link fence and is fixedly connected with chain link fence, and then utilize the first shape-V thread dog, second shape-V thread dog and chain link fence are by relative with the inner-walls of duct of steel pipe main body for the fiber reinforcement wear-resistant pouring bed of material fixing, wherein, Lightweight high-strength heat-insulation refractory castable layer is made up of following raw material: kyanite, wollastonite, magnesium carbonate, Bubble zirconia, alumina powder, fine silica powder, aluminium phosphate, wherein, kyanite, wollastonite, magnesium carbonate, Zirconium oxide fibre, Bubble zirconia are aggregate, and alumina powder, fine silica powder, aluminium phosphate are powder, the parts by weight of above-mentioned raw materials are: kyanite 10 ~ 25 parts, wollastonite 10 ~ 20 parts, 10 ~ 20 parts, magnesium carbonate, Zirconium oxide fibre 5 ~ 10 parts, Bubble zirconia 5 ~ 10 parts, alumina powder 10 ~ 20 parts, fine silica powder 5 ~ 10 parts, aluminium phosphate 5 ~ 10 parts.
Above-mentioned have in the flue gas thermal insulation pipe of Lightweight high-strength heat-insulation refractory castable layer, Bubble zirconia in the aggregate of described Lightweight high-strength heat-insulation refractory castable layer has special surface structure and boring, surface irregularity, increase contact gear ratio surface area, make alumina powder in aggregate and powder, fine silica powder combines firmly, both improve fire performance, turn increase intensity and the heat insulation effect of material, the carbon dioxide produced when simultaneously decomposing under magnesium carbonate hot environment can produce pore in castable, the magnesium oxide produced when simultaneously decomposing under magnesium carbonate hot environment and alumina powder react and generate magnesium aluminate spinel, and adopt aluminium phosphate as bonding agent, and then improve the intensity of castable, simultaneously by shape-V thread dog and chain link fence by relative with the inner-walls of duct of steel pipe main body for the fiber reinforcement wear-resistant pouring bed of material fixing, so make pipeline outer wall temperature (under normal temperature state) lower than 50 DEG C, effectively can ensure that the flue-gas temperature had in the flue gas thermal insulation pipe of Lightweight high-strength heat-insulation refractory castable layer can not reduce, ensure that the thermal insulation layer people in running after having constructed can enter in pipeline simultaneously and carry out inspection deashing, and do not trampled on breakage, the working life of thermal insulation layer reaches more than 10 years.
Accompanying drawing explanation
Accompanying drawing 1 is the flue gas thermal insulation pipe cross-sectional view with Lightweight high-strength heat-insulation refractory castable layer of a better embodiment.
In figure: there is the flue gas thermal insulation pipe 30 of Lightweight high-strength heat-insulation refractory castable layer, steel pipe main body 31, Lightweight high-strength heat-insulation refractory castable layer 32, chain link fence 33, first shape-V thread dog 360, second shape-V thread dog 361.
Embodiment
Referring to Fig. 1, the flue gas thermal insulation pipe 30 with Lightweight high-strength heat-insulation refractory castable layer comprises steel pipe main body 31, the inner-walls of duct of steel pipe main body 31 is provided with Lightweight high-strength heat-insulation refractory castable layer 32, be provided with chain link fence chain link fence 33 in Lightweight high-strength heat-insulation refractory castable layer 32, the mesh of chain link fence 33 is 20 × 20mm or is 15 × 15mm.Wherein, the inner-walls of duct of steel pipe main body 31 welds the first shape-V thread dog 360, second shape-V thread dog 361, the tip of the first shape-V thread dog 360 is fixedly connected with the inner-walls of duct of steel pipe main body 31, two separating ends of the first shape-V thread dog 360 extend to chain link fence 33 and are fixedly connected with chain link fence 33, two separating ends of the second shape-V thread dog 361 are fixedly connected with the inner-walls of duct of steel pipe main body 31, the tip of the second shape-V thread dog 361 extends to chain link fence 33 and is fixedly connected with chain link fence 33, and then utilize the first shape-V thread dog 360, second shape-V thread dog 361 and chain link fence are by relative with the inner-walls of duct of steel pipe main body 31 for the fiber reinforcement wear-resistant pouring bed of material 32 fixing, the inner-walls of duct of steel pipe main body 31 and the first shape-V thread dog 360, second shape-V thread dog 361 is brushed with coal tar paint.
The processing requirements of Lightweight high-strength heat-insulation refractory castable layer 32 is for filling up, tamping, and thickness is 30 ~ 50mm, makes smooth surface; Lightweight high-strength heat-insulation refractory castable layer 32 is made up of following raw material: kyanite, wollastonite, magnesium carbonate, Zirconium oxide fibre, Bubble zirconia, alumina powder, fine silica powder, aluminium phosphate, graphite, wherein, kyanite, wollastonite, magnesium carbonate, Zirconium oxide fibre, Bubble zirconia are aggregate, and alumina powder, fine silica powder, aluminium phosphate, graphite are powder; The parts by weight of above-mentioned raw materials are: kyanite 10 ~ 25 parts, wollastonite 10 ~ 20 parts, 10 ~ 20 parts, magnesium carbonate, Zirconium oxide fibre 5 ~ 10 parts, Bubble zirconia 5 ~ 10 parts, alumina powder 10 ~ 20 parts, fine silica powder 5 ~ 10 parts, aluminium phosphate 5 ~ 10 parts.Aggregate comprises coarse aggregate, middle aggregate, fine aggregate, the particle diameter of coarse aggregate is 2 ~ 3mm, the particle diameter of middle aggregate is 1 ~ 2mm, the particle diameter of fine aggregate is 0.1 ~ 0.8mm, wherein, Bubble zirconia is coarse aggregate, and kyanite, wollastonite are middle aggregate, and Zirconium oxide fibre, magnesium carbonate are fine aggregate.Wherein, Bubble zirconia in aggregate has special surface structure and boring, surface irregularity, increase contact gear ratio surface area, make alumina powder in aggregate and powder, fine silica powder combines firmly, both improve fire performance, turn increase intensity and the heat insulation effect of material, the carbon dioxide produced when simultaneously decomposing under magnesium carbonate hot environment can produce pore in castable, the magnesium oxide produced when simultaneously decomposing under magnesium carbonate hot environment and alumina powder react and generate magnesium aluminate spinel, and adopt aluminium phosphate as bonding agent, and then improve the intensity of castable.
Above-mentioned have in the flue gas thermal insulation pipe 30 of Lightweight high-strength heat-insulation refractory castable layer, Bubble zirconia in the aggregate of described Lightweight high-strength heat-insulation refractory castable layer 32 has special surface structure and boring, surface irregularity, increase contact gear ratio surface area, make alumina powder in aggregate and powder, fine silica powder combines firmly, both improve fire performance, turn increase intensity and the heat insulation effect of material, the carbon dioxide produced when simultaneously decomposing under magnesium carbonate hot environment can produce pore in castable, the magnesium oxide produced when simultaneously decomposing under magnesium carbonate hot environment and alumina powder react and generate magnesium aluminate spinel, and adopt aluminium phosphate as bonding agent, and then improve the intensity of castable, simultaneously by shape-V thread dog and chain link fence 33 by relative with the inner-walls of duct of steel pipe main body 31 for the fiber reinforcement wear-resistant pouring bed of material 32 fixing, so make pipeline outer wall temperature (under normal temperature state) lower than 50 DEG C, effectively can ensure that the flue-gas temperature had in the flue gas thermal insulation pipe of Lightweight high-strength heat-insulation refractory castable layer can not reduce, ensure that the thermal insulation layer people in running after having constructed can enter in pipeline simultaneously and carry out inspection deashing, and do not trampled on breakage, the working life of thermal insulation layer reaches more than 10 years.
Claims (3)
1. one kind has the flue gas thermal insulation pipe of Lightweight high-strength heat-insulation refractory castable layer, comprise steel pipe main body, it is characterized in that: the inner-walls of duct of steel pipe main body is provided with Lightweight high-strength heat-insulation refractory castable layer, in Lightweight high-strength heat-insulation refractory castable layer, be provided with chain link fence, wherein, the inner-walls of duct of steel pipe main body welds the first shape-V thread dog, second shape-V thread dog, the tip of the first shape-V thread dog is fixedly connected with the inner-walls of duct of steel pipe main body, two separating ends of the first shape-V thread dog extend to chain link fence and are fixedly connected with chain link fence, two separating ends of the second shape-V thread dog are fixedly connected with the inner-walls of duct of steel pipe main body, the tip of the second shape-V thread dog extends to chain link fence and is fixedly connected with chain link fence, and then utilize the first shape-V thread dog, second shape-V thread dog and chain link fence are by relative with the inner-walls of duct of steel pipe main body for the fiber reinforcement wear-resistant pouring bed of material fixing, wherein, Lightweight high-strength heat-insulation refractory castable layer is made up of following raw material: kyanite, wollastonite, magnesium carbonate, Bubble zirconia, alumina powder, fine silica powder, aluminium phosphate, wherein, kyanite, wollastonite, magnesium carbonate, Zirconium oxide fibre, Bubble zirconia are aggregate, and alumina powder, fine silica powder, aluminium phosphate are powder, the parts by weight of above-mentioned raw materials are: kyanite 10 ~ 25 parts, wollastonite 10 ~ 20 parts, 10 ~ 20 parts, magnesium carbonate, Zirconium oxide fibre 5 ~ 10 parts, Bubble zirconia 5 ~ 10 parts, alumina powder 10 ~ 20 parts, fine silica powder 5 ~ 10 parts, aluminium phosphate 5 ~ 10 parts.
2. there is the flue gas thermal insulation pipe of Lightweight high-strength heat-insulation refractory castable layer as claimed in claim 1, it is characterized in that: the mesh of chain link fence 33 is 20 × 20mm or is 15 × 15mm.
3. there is the flue gas thermal insulation pipe of Lightweight high-strength heat-insulation refractory castable layer as claimed in claim 2, it is characterized in that: aggregate comprises coarse aggregate, middle aggregate, fine aggregate, the particle diameter of coarse aggregate is 2 ~ 3mm, the particle diameter of middle aggregate is 1 ~ 2mm, the particle diameter of fine aggregate is 0.1 ~ 0.8mm, and wherein, Bubble zirconia is coarse aggregate, kyanite, wollastonite are middle aggregate, and Zirconium oxide fibre, magnesium carbonate are fine aggregate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410581188.3A CN104455930B (en) | 2014-10-27 | 2014-10-27 | There is the flue gas insulating tube of Lightweight high-strength heat-insulation refractory castable layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410581188.3A CN104455930B (en) | 2014-10-27 | 2014-10-27 | There is the flue gas insulating tube of Lightweight high-strength heat-insulation refractory castable layer |
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| CN104455930A true CN104455930A (en) | 2015-03-25 |
| CN104455930B CN104455930B (en) | 2016-08-24 |
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| CN201410581188.3A Active CN104455930B (en) | 2014-10-27 | 2014-10-27 | There is the flue gas insulating tube of Lightweight high-strength heat-insulation refractory castable layer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854823A (en) * | 2018-12-07 | 2019-06-07 | 湖南瑞新机械制造有限公司 | A kind of superhigh temperature resistant flue |
| CN109931442A (en) * | 2019-03-28 | 2019-06-25 | 贵阳明通炉料有限公司 | A kind of high medium temperature wind and smoke pipeline of wear resistant heat preserving composite construction and production method |
| CN116289297A (en) * | 2022-12-29 | 2023-06-23 | 中国建筑材料科学研究总院有限公司 | Gap filling material for heat insulating material gap, and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2209754Y (en) * | 1995-01-25 | 1995-10-11 | 尚久駜 | Steel belt inforced coating thermal insulation pipe |
| CN2280827Y (en) * | 1997-03-21 | 1998-05-06 | 姜启顺 | Integrated heat-insulation section |
| JP2000219575A (en) * | 1998-11-27 | 2000-08-08 | Toshiba Ceramics Co Ltd | Castable refractory |
-
2014
- 2014-10-27 CN CN201410581188.3A patent/CN104455930B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2209754Y (en) * | 1995-01-25 | 1995-10-11 | 尚久駜 | Steel belt inforced coating thermal insulation pipe |
| CN2280827Y (en) * | 1997-03-21 | 1998-05-06 | 姜启顺 | Integrated heat-insulation section |
| JP2000219575A (en) * | 1998-11-27 | 2000-08-08 | Toshiba Ceramics Co Ltd | Castable refractory |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854823A (en) * | 2018-12-07 | 2019-06-07 | 湖南瑞新机械制造有限公司 | A kind of superhigh temperature resistant flue |
| CN109931442A (en) * | 2019-03-28 | 2019-06-25 | 贵阳明通炉料有限公司 | A kind of high medium temperature wind and smoke pipeline of wear resistant heat preserving composite construction and production method |
| CN116289297A (en) * | 2022-12-29 | 2023-06-23 | 中国建筑材料科学研究总院有限公司 | Gap filling material for heat insulating material gap, and preparation method and application thereof |
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| Publication number | Publication date |
|---|---|
| CN104455930B (en) | 2016-08-24 |
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Address after: 750002 Yinchuan Ningfeng District, Ningxia 490, Yinchuan IBI breeding center two phase 10, 3 floor 301 room. Patentee after: Ningxia renle Hongguang cogeneration technology Limited by Share Ltd Address before: 750021 the Ningxia Hui Autonomous Region Yinchuan Xixia Industrial Park Jin Bo South Road Chuangxin crane hospital Patentee before: Ningxia Tianzong Hongguang Cogeneration Technology Co., Ltd. |
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