CN104455931A - Method for manufacturing submerged arc furnace smoke heat preservation pipe and submerged arc furnace smoke heat preservation pipe - Google Patents
Method for manufacturing submerged arc furnace smoke heat preservation pipe and submerged arc furnace smoke heat preservation pipe Download PDFInfo
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- CN104455931A CN104455931A CN201410581244.3A CN201410581244A CN104455931A CN 104455931 A CN104455931 A CN 104455931A CN 201410581244 A CN201410581244 A CN 201410581244A CN 104455931 A CN104455931 A CN 104455931A
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- chain link
- link fence
- shape
- steel pipe
- thread dog
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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
- F16L59/028—Composition or method of fixing a thermally insulating material
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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
- F16L59/029—Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
A method for manufacturing a submerged arc furnace smoke heat preservation pipe comprises the following steps that a first V-type threaded cramp and a second V-type threaded cramp are welded to the pipeline inner wall of a steel pipe; the pipeline inner wall of the steel pipe and the threaded cramps are brushed with coal tar paint; an aluminum silicate layer, an asbestos board and iron gauze are sequentially laid in the steel pipe brushed with the coal tar paint, wherein the threaded cramps are welded to the steel pipe, the tip end of the first V-type threaded cramp is fixedly connected with the pipeline inner wall of a steel pipe body, the two separated ends of the first V-type threaded cramp extend to the iron gauze and are fixedly connected with the iron gauze, the two separated ends of the second V-type threaded cramp are fixedly connected with the pipeline inner wall of the steel pipe body, and the tip end of the second V-type threaded cramp extends to the iron gauze and is fixedly connected with the iron gauze; the asbestos board is brushed with asphalt paint and propellant; the asbestos board is poured with ceramic fiber castable, and the submerged arc furnace smoke heat preservation pipe is obtained after plastering treatment. The invention further provides the submerged arc furnace smoke heat preservation pipe.
Description
Technical field
The present invention relates to pipeline heat-insulating technology field, particularly a kind of mineral heating furnace flue thermal insulation pipe making method and mineral heating furnace flue thermal insulation pipe.
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 that providing a kind of can produce high insulating effect and the mineral heating furnace flue thermal insulation pipe making method of the mineral heating furnace flue thermal insulation pipe of long service life.
There is a need to provide a kind of high insulating effect and the mineral heating furnace flue thermal insulation pipe of the mineral heating furnace flue thermal insulation pipe of long service life.
A kind of mineral heating furnace flue thermal insulation pipe making method, comprises the following steps:
The inner-walls of duct of steel pipe welds the first shape-V thread dog, the second shape-V thread dog;
The inner-walls of duct of steel pipe and the first shape-V thread dog, the second shape-V thread dog brush coal tar paint;
Be welded with screw thread dog and be brushed with coal tar paint steel pipeline in lay aluminum silicate layer, asbestos slate, chain link fence successively, wherein, 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, and the tip of the second shape-V thread dog extends to chain link fence and is fixedly connected with chain link fence;
Brush bituminous paint and volatilizer on asbestos slate;
Pour into a mould asbestos slate with ceramic fibre pouring material, and carry out process rear acquisition mineral heating furnace flue thermal insulation pipe of wiping one's face.
A kind of mineral heating furnace flue thermal insulation pipe, comprises steel pipe main body, the inner-walls of duct of steel pipe main body is disposed with aluminum silicate layer, asbestos slate, chain link fence and ceramic fiber layer.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 is by aluminum silicate layer, asbestos slate, chain link fence is relative with the inner-walls of duct of steel pipe main body fixing, the inner-walls of duct of steel pipe main body and the first shape-V thread dog, second shape-V thread dog is brushed with coal tar paint.
The pipeline outer wall temperature (under normal temperature state) of the mineral heating furnace flue thermal insulation pipe utilizing above-mentioned mineral heating furnace flue thermal insulation pipe making method to produce is lower than 50 DEG C, effectively can ensure that the flue-gas temperature in mineral heating furnace flue thermal insulation pipe 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 mineral heating furnace flue thermal insulation pipe making method flow chart of a better embodiment.
Accompanying drawing 2 is the mineral heating furnace flue thermal insulation pipe cross-sectional view adopting the mineral heating furnace flue thermal insulation pipe making method in Fig. 1 to produce.
In figure: mineral heating furnace flue thermal insulation pipe making method step S201 ~ S205, mineral heating furnace flue thermal insulation pipe 30, steel pipe main body 31, aluminum silicate layer 32, chain link fence 33, asbestos slate 34, ceramic fiber layer 35, first shape-V thread dog 360, second shape-V thread dog 361.
Embodiment
Please refer to the mineral heating furnace flue thermal insulation pipe making method shown in Fig. 1, comprise the following steps:
Step S201, the inner-walls of duct of steel pipe welds the first shape-V thread dog, the second shape-V thread dog.
Step S202, the inner-walls of duct of steel pipe and the first shape-V thread dog, the second shape-V thread dog brush coal tar paint.
Step S203, be welded with screw thread dog and be brushed with coal tar paint steel pipeline in lay aluminum silicate layer, asbestos slate, chain link fence successively, wherein, 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, and the tip of the second shape-V thread dog extends to chain link fence and is fixedly connected with chain link fence.
Step S204, brush bituminous paint and volatilizer on asbestos slate.
Step S205, pours into a mould asbestos slate with ceramic fibre pouring material, and carries out process rear acquisition mineral heating furnace flue thermal insulation pipe of wiping one's face.Referring to Fig. 2, mineral heating furnace flue thermal insulation pipe 30 comprises steel pipe main body 31, the inner-walls of duct of steel pipe main body 31 is disposed with aluminum silicate layer 32, asbestos slate 34, chain link fence 33 and ceramic fiber layer 35.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 is by aluminum silicate layer 32, asbestos slate 34, chain link fence 33 is relative with the inner-walls of duct of steel pipe main body 31 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.Processing requirements fills up, tamp, and thickness is 30 ~ 50mm, makes smooth surface.Ceramic fibre pouring material: density 2000g/cm3, when thermal conductivity is 350 DEG C when 0.87,1000 DEG C 0.93, there is high strength and durability, lower thermal conductivity, prevent wind speed too fast and cause surface to come off, high temperature resistant most high resistance 1300 DEG C, acid fastness.
Below citing utilizes said method to obtain mineral heating furnace flue thermal insulation pipe:
Manufacture large span mineral heating furnace flue thermal insulation pipe:
At the inner-walls of duct welding shape-V thread dog of steel pipe, screw thread dog length is 130mm, welds one every 150mm spacing, then uses coal tar oil painting brush on steel plate and drive screw; Laying two layers of thickness at the inner-walls of duct of steel pipe is 65mm alumina silicate, and the construction time-division two-layer fissure of displacement laminates, and alumina silicate requires: maximum operation (service) temperature 1000 DEG C, density is 80 ~ 120kg/m
3(when 1000 DEG C, thermal conductivity is 0.047 w/(m.k); On aluminum silicate layer, laying depth is 2mm asbestos slate, and with bituminous paint and volatilizer brush on asbestos slate, and then adds one deck galvanized wire mesh, chain link fence mesh 20 × 20mm, by galvanized wire mesh, shape-V thread dog tighten to be densified to 100mm thick; Use ceramic fibre pouring material asbestos slate, and carry out process of wiping one's face, processing requirements fills up, tamp, thickness is 30 ~ 50mm, makes smooth surface.Ceramic fibre pouring material: density 2000g/cm
3, when thermal conductivity is 350 DEG C when 0.87,1000 DEG C 0.93, there is high strength and durability, lower thermal conductivity, prevent wind speed too fast and cause surface to come off, high temperature resistant most high resistance 1300 DEG C, acid fastness.
Manufacture little span and vertical mineral heating furnace flue thermal insulation pipe: at working steel tube road inwall welding shape-V thread dog, screw thread dog length is 130mm, welds one every 150mm spacing; In steel pipeline, lay two layers of thickness is 65mm alumina silicate, and the construction time-division two-layer fissure of displacement laminates; On aluminum silicate layer, laying depth is 2mm asbestos slate, and with bituminous paint and volatilizer brush on asbestos slate, and then add one deck galvanized wire mesh, chain link fence mesh 15 × 15mm, by galvanized wire mesh, shape-V thread dog tighten to be densified to 50mm thick, carry out cast processing requirements with ceramic fibre pouring material to fill up, tamp, thickness is 100mm, makes smooth surface.
When two joint mineral heating furnace flue thermal insulation pipes are linked together, first adopt pipeline abutted flange to add asbestos slate to be connected by two joint mineral heating furnace flue thermal insulation pipes, workmen is with two bar safety rope to carry out construction processing at joint: joint castable is processed into Eight characters shape, first fill out alumina silicate is coated with flat with coating again by seam crossing.
Claims (9)
1. a mineral heating furnace flue thermal insulation pipe making method, is characterized in that, comprises the following steps:
The inner-walls of duct of steel pipe welds the first shape-V thread dog, the second shape-V thread dog;
The inner-walls of duct of steel pipe and the first shape-V thread dog, the second shape-V thread dog brush coal tar paint;
Be welded with screw thread dog and be brushed with coal tar paint steel pipeline in lay aluminum silicate layer, asbestos slate, chain link fence successively, wherein, 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, and the tip of the second shape-V thread dog extends to chain link fence and is fixedly connected with chain link fence;
Brush bituminous paint and volatilizer on asbestos slate;
Pour into a mould asbestos slate with ceramic fibre pouring material, and carry out process rear acquisition mineral heating furnace flue thermal insulation pipe of wiping one's face.
2. mineral heating furnace flue thermal insulation pipe making method as claimed in claim 1, is characterized in that: laying two layers of thickness at the inner-walls of duct of steel pipe is 65mm alumina silicate, and the construction time-division two-layer fissure of displacement laminates.
3. mineral heating furnace flue thermal insulation pipe making method as claimed in claim 1, it is characterized in that: chain link fence is galvanized wire mesh, chain link fence mesh 20 × 20mm, chain link fence is that 100mm is thick; Chain link fence add thickness into 2mm asbestos slate; With ceramic fibre pouring material cast thickness be 30 ~ 50mm.
4. mineral heating furnace flue thermal insulation pipe making method as claimed in claim 1, it is characterized in that: chain link fence is galvanized wire mesh, chain link fence mesh 15 × 15mm, chain link fence is that 50mm is thick; Add thickness as 2mm asbestos slate on the net at galvanized wire; With ceramic fibre pouring material cast thickness be 100mm.
5. a mineral heating furnace flue thermal insulation pipe, comprises steel pipe main body, it is characterized in that: the inner-walls of duct of steel pipe main body is disposed with aluminum silicate layer, asbestos slate, chain link fence and ceramic fiber layer, 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 is by aluminum silicate layer, asbestos slate, chain link fence is relative with the inner-walls of duct of steel pipe main body fixing, the inner-walls of duct of steel pipe main body and the first shape-V thread dog, second shape-V thread dog is brushed with coal tar paint.
6. mineral heating furnace flue thermal insulation pipe as claimed in claim 5, is characterized in that: screw thread dog length is 130mm, welds one every 150mm spacing.
7. mineral heating furnace flue thermal insulation pipe as claimed in claim 5, is characterized in that: laying two layers of thickness at the inner-walls of duct of steel pipe is 65mm alumina silicate.
8. mineral heating furnace flue thermal insulation pipe as claimed in claim 5, it is characterized in that: chain link fence is galvanized wire mesh, chain link fence mesh 20 × 20mm, chain link fence is that 100mm is thick; Chain link fence add thickness into 2mm asbestos slate; With ceramic fibre pouring material cast thickness be 30 ~ 50mm.
9. mineral heating furnace flue thermal insulation pipe as claimed in claim 5, it is characterized in that: chain link fence is galvanized wire mesh, chain link fence mesh 15 × 15mm, chain link fence is that 50mm is thick; Add thickness as 2mm asbestos slate on the net at galvanized wire; With ceramic fibre pouring material cast thickness be 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410581244.3A CN104455931A (en) | 2014-10-27 | 2014-10-27 | Method for manufacturing submerged arc furnace smoke heat preservation pipe and submerged arc furnace smoke heat preservation pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410581244.3A CN104455931A (en) | 2014-10-27 | 2014-10-27 | Method for manufacturing submerged arc furnace smoke heat preservation pipe and submerged arc furnace smoke heat preservation pipe |
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| Publication Number | Publication Date |
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| CN104455931A true CN104455931A (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410581244.3A Pending CN104455931A (en) | 2014-10-27 | 2014-10-27 | Method for manufacturing submerged arc furnace smoke heat preservation pipe and submerged arc furnace smoke heat preservation pipe |
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| CN (1) | CN104455931A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| JPS5110163A (en) * | 1974-06-11 | 1976-01-27 | Alcan Res & Dev | |
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| CN201925673U (en) * | 2011-01-26 | 2011-08-10 | 浙江万凯新材料有限公司 | Heat insulation material for chemical equipment |
| CN202032239U (en) * | 2011-05-18 | 2011-11-09 | 中海石油炼化有限责任公司惠州炼油分公司 | Composite heat-preservation structure used in high-pressure steam pipeline in coastal area |
| CN202647070U (en) * | 2012-06-13 | 2013-01-02 | 武汉问顶科技有限公司 | Heat-preservation material |
| CN102979994A (en) * | 2012-11-30 | 2013-03-20 | 宁夏天纵泓光节能余热技术有限公司 | Method for manufacturing electric arc furnace fume heat insulating pipe and electric arc furnace fume heat insulating pipe |
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2014
- 2014-10-27 CN CN201410581244.3A patent/CN104455931A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5110163B1 (en) * | 1971-04-24 | 1976-04-02 | ||
| JPS5110163A (en) * | 1974-06-11 | 1976-01-27 | Alcan Res & Dev | |
| CN201925673U (en) * | 2011-01-26 | 2011-08-10 | 浙江万凯新材料有限公司 | Heat insulation material for chemical equipment |
| CN202032239U (en) * | 2011-05-18 | 2011-11-09 | 中海石油炼化有限责任公司惠州炼油分公司 | Composite heat-preservation structure used in high-pressure steam pipeline in coastal area |
| CN202647070U (en) * | 2012-06-13 | 2013-01-02 | 武汉问顶科技有限公司 | Heat-preservation material |
| CN102979994A (en) * | 2012-11-30 | 2013-03-20 | 宁夏天纵泓光节能余热技术有限公司 | Method for manufacturing electric arc furnace fume heat insulating pipe and electric arc furnace fume heat insulating pipe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Application publication date: 20150325 |
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