CN104329538A - Submerged arc furnace flue vacuum insulation pipe with heat insulating and fireproof pouring material layer - Google Patents
Submerged arc furnace flue vacuum insulation pipe with heat insulating and fireproof pouring material layer Download PDFInfo
- Publication number
- CN104329538A CN104329538A CN201410581266.XA CN201410581266A CN104329538A CN 104329538 A CN104329538 A CN 104329538A CN 201410581266 A CN201410581266 A CN 201410581266A CN 104329538 A CN104329538 A CN 104329538A
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- castable
- main body
- steel pipe
- cavity
- pipe main
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Classifications
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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
-
- 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
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Products (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention provides a submerged arc furnace flue vacuum insulation pipe with a heat insulating and fireproof pouring material layer. The vacuum insulation pipe comprises a steel pipe main body, wherein a vacuum cavity and a pouring material containing cavity are formed in the pipe wall of the steel pipe main body; the shape of the vacuum cavity and the pouring material containing cavity is corresponding to the shape of the steel pipe main body; the vacuum cavity and the pouring material containing cavity are coaxial. The pouring material containing cavity is filled with the heat insulating and fireproof pouring material which is uniformly stirred after adding water. The heat insulating and fireproof pouring material comprises the following raw materials: mullite, zirconia fiber, magnesium carbonate, alumina hollow ball, alumina micro powder, silicon dioxide micro powder, sodium silicate; the mullite, the alumina hollow ball and the zirconia fiber are aggregate; the magnesium carbonate, the alumina micro powder, the silicon dioxide micro powder and the sodium silicate are substrate; permeation holes are formed in the inner pipe wall of the steel pipe main body; the permeation holes are communicated with the pouring material containing cavity; thus, the heat insulating and fireproof pouring material can be permeated from the permeation holes, and the heat insulating and fireproof pouring material layer is formed.
Description
Technical field
The present invention relates to pipeline heat-insulating technology field, particularly a kind of mineral heating furnace flue vacuum heat-preserving tube with insulating refractory casting material 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 mineral heating furnace flue vacuum heat-preserving tube with insulating refractory casting material layer of long service life.
A kind of mineral heating furnace flue vacuum heat-preserving tube with insulating refractory casting material layer, comprise steel pipe main body, vacuum cavity and castable collecting cavity is provided with in the tube wall of steel pipe main body, vacuum cavity, the shape of castable collecting cavity is corresponding with the shape of steel pipe main body, vacuum cavity, castable collecting cavity is coaxial, and castable collecting cavity is less than the distance of vacuum cavity to the inner tubal wall of steel pipe main body to the distance of the inner tubal wall of steel pipe main body, the tube wall of steel pipe main body is provided with the first castable refractory hand-hole and the second castable refractory hand-hole, first castable refractory hand-hole and the second castable refractory hand-hole are accommodated cavity with castable and are communicated with, one end of the tube wall of steel pipe main body is provided with annular embedded groove, the other end of the tube wall of steel pipe main body is provided with annular and embeds arm, the external diameter that annular embeds arm is corresponding with the internal diameter of annular embedded groove, the thickness that annular embeds arm is corresponding with the width of annular embedded groove.The insulating refractory casting material after stirring that adds water is filled with in castable collecting cavity, insulating refractory casting material is made up of following raw material: mullite, Zirconium oxide fibre, magnesium carbonate, alumina hollow ball, alumina powder, fine silica powder, sodium silicate, wherein, mullite, alumina hollow ball, Zirconium oxide fibre are aggregate, and magnesium carbonate, alumina powder, fine silica powder, sodium silicate are matrix; The parts by weight of above-mentioned raw materials are: mullite 20 ~ 30 parts, Zirconium oxide fibre 10 ~ 20 parts, 5 ~ 10 parts, magnesium carbonate, alumina hollow ball 20 ~ 25 parts, alumina powder 20 ~ 25 parts, fine silica powder 1 ~ 5 part, sodium silicate 1 ~ 5 part, the inner tubal wall of steel pipe main body offers permeability hole, permeability hole and castable are accommodated cavity and are communicated with, and insulating refractory casting material like this oozes out from permeability hole and forms insulating refractory casting material layer.
The above-mentioned mineral heating furnace flue vacuum heat-preserving tube with insulating refractory casting material layer, vacuum cavity is provided with in the tube wall of steel pipe main body, the shape of vacuum cavity is corresponding with the shape of steel pipe main body, and castable collecting cavity is set in the mineral heating furnace flue vacuum heat-preserving tube with insulating refractory casting material layer, in insulating refractory casting material in castable collecting cavity, alumina hollow ball in aggregate has special surface structure and boring, surface irregularity, increase contact gear ratio surface area, make alumina powder in aggregate and matrix, fine silica powder combines firmly, both improve fire performance, turn increase intensity and the heat insulation effect of material, magnesium carbonate decomposes generation carbon dioxide under the high temperature conditions, carbon dioxide is discharged from the castable that painting wipes, pore is formed to make castable, simultaneous oxidation zirconium fiber can ensure the thermal shock resistance of castable, and magnesium oxide and alumina powder react and generate magnesium aluminate spinel, and insulating refractory casting material from castable collecting cavity permeability hole ooze out after, floating by workmen again, and finally on the inner tubal wall of steel pipe main body, form one deck castable protective layer, so can ensure that pipeline outer wall temperature (under normal temperature state) is lower than 50 DEG C, effectively can ensure that the flue-gas temperature had in the mineral heating furnace flue vacuum heat-preserving tube of insulating refractory casting material layer can not reduce, in addition, because the mineral heating furnace flue vacuum heat-preserving tube with insulating refractory casting material layer is steel design, ensure that the thermal insulation layer people in running after having constructed can enter in pipeline 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 cross-sectional view with the mineral heating furnace flue vacuum heat-preserving tube of insulating refractory casting material layer of a better embodiment.
Accompanying drawing 2 is the cross-sectional view with steel pipe main body in the mineral heating furnace flue vacuum heat-preserving tube of insulating refractory casting material layer in Fig. 1.
Accompanying drawing 3 is the structural representation with steel pipe main body in the mineral heating furnace flue vacuum heat-preserving tube of insulating refractory casting material layer in Fig. 1.
Accompanying drawing 4 is the structural representation with another angle of steel pipe main body in the mineral heating furnace flue vacuum heat-preserving tube of insulating refractory casting material layer in Fig. 1.
In figure: the mineral heating furnace flue vacuum heat-preserving tube 10 with insulating refractory casting material layer, steel pipe main body 11, tube wall 110, inner tubal wall 1100, first castable refractory hand-hole 1101, second castable refractory hand-hole 1102, adiabatic gum hand-hole 1103, vacuum cavity 111, annular embedded groove 112, outer side wall 1120, annular embeds arm 113, outer wall 1130, adiabatic gum collecting circular groove 114, adiabatic gum collecting circular groove 115, castable collecting cavity 120, isolation arm 130, isolation arm 140, 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, insulating refractory casting material 600, insulating refractory casting material layer 601.
Embodiment
Please refer to shown in Fig. 1 to Fig. 4, the mineral heating furnace flue vacuum heat-preserving tube 10 with insulating refractory casting material layer comprises steel pipe main body 11, vacuum cavity 111 and castable collecting cavity 120 is provided with in the tube wall 110 of steel pipe main body 11, vacuum cavity 111, the shape of castable collecting cavity 120 is corresponding with the shape of steel pipe main body 11, vacuum cavity 111, castable collecting cavity 120 is coaxial, and castable collecting cavity 120 is less than to the distance of the inner tubal wall 1100 of steel pipe main body 11 distance that vacuum cavity 111 arrives the inner tubal wall 1100 of steel pipe main body 11, the tube wall 110 of steel pipe main body 11 is provided with the first castable refractory hand-hole 1101 and the second castable refractory hand-hole 1102, first castable refractory hand-hole 1101 and the second castable refractory hand-hole 1102 are accommodated cavity 120 with castable and are communicated with, the inner tubal wall 1100 of steel pipe main body 11 offers permeability hole 121, permeability hole 121 and castable are accommodated cavity 120 and are communicated with.Through the first castable refractory hand-hole 1101 and the second castable refractory hand-hole 1102 fill in castable collecting cavity 120 filled with water stir after insulating refractory casting material 600, insulating refractory casting material 600 is made up of following raw material: mullite, Zirconium oxide fibre, magnesium carbonate, alumina hollow ball, alumina powder, fine silica powder, sodium silicate, wherein, mullite, alumina hollow ball, Zirconium oxide fibre are aggregate, and magnesium carbonate, alumina powder, fine silica powder, sodium silicate are matrix; The parts by weight of above-mentioned raw materials are: mullite 20 ~ 30 parts, Zirconium oxide fibre 10 ~ 20 parts, 5 ~ 10 parts, magnesium carbonate, alumina hollow ball 20 ~ 25 parts, alumina powder 20 ~ 25 parts, fine silica powder 1 ~ 5 part, sodium silicate 1 ~ 5 part, and insulating refractory casting material 600 is extruded and oozes out to form insulating refractory casting material layer 601 from permeability hole 121.
One end of the tube wall 110 of steel pipe main body 11 is provided with annular embedded groove 112, the other end of the tube wall 110 of steel pipe main body 11 is provided with annular and embeds arm 113, the external diameter that annular embeds arm 113 is corresponding with the internal diameter of annular embedded groove 112, and the thickness that annular embeds arm 113 is corresponding with the width of annular embedded groove 112.So, two joint have insulating refractory casting material layer mineral heating furnace flue vacuum heat-preserving tube 10 can mutually by respective annular embedded groove 112, annular embed arm 113.
Wherein, the first castable refractory hand-hole 1101, through after the isolation arm 130 vacuum cavity 111 and annular embedded groove 112, is accommodated cavity 120 with castable and is communicated with; Second castable refractory hand-hole 1102 is communicated with through accommodating cavity 120 with castable after vacuum cavity 111 and the annular isolation arm 140 embedded arm 113.
Further, the outer wall 1130 of annular embedding arm 113 is provided with adiabatic gum collecting circular groove 114, the outer side wall 1120 of annular embedded groove 112 is arranged adiabatic gum collecting circular groove 115, the tube wall 110 of steel pipe main body 11 is provided with adiabatic gum hand-hole 1103, and adiabatic gum hand-hole 1103 is accommodated circular groove 115 with the adiabatic gum on the outer side wall 1120 of annular embedded groove 112 and is communicated with.
The above-mentioned mineral heating furnace flue vacuum heat-preserving tube 10 with insulating refractory casting material layer, vacuum cavity 111 is provided with in the tube wall 110 of steel pipe main body 11, the shape of vacuum cavity 111 is corresponding with the shape of steel pipe main body 11, and castable collecting cavity 120 is set in the mineral heating furnace flue vacuum heat-preserving tube 10 with insulating refractory casting material layer, in insulating refractory casting material 600 in castable collecting cavity 120, alumina hollow ball in aggregate has special surface structure and boring, surface irregularity, increase contact gear ratio surface area, make alumina powder in aggregate and matrix, fine silica powder combines firmly, both improve fire performance, turn increase intensity and the heat insulation effect of material, magnesium carbonate decomposes generation carbon dioxide under the high temperature conditions, carbon dioxide is discharged from the castable that painting wipes, pore is formed to make castable, simultaneous oxidation zirconium fiber can ensure the thermal shock resistance of castable, and magnesium oxide and alumina powder react and generate magnesium aluminate spinel, and insulating refractory casting material from castable collecting cavity permeability hole ooze out after, floating by workmen again, and finally on the inner tubal wall of steel pipe main body, form one deck castable protective layer, so can ensure that pipeline outer wall temperature (under normal temperature state) is lower than 50 DEG C, effectively can ensure that the flue-gas temperature had in the mineral heating furnace flue vacuum heat-preserving tube 10 of insulating refractory casting material layer can not reduce, in addition, because the mineral heating furnace flue vacuum heat-preserving tube 10 with insulating refractory casting material layer is steel design, ensure that the thermal insulation layer people in running after having constructed can enter in pipeline and carry out inspection deashing, and do not trampled on breakage, the working life of thermal insulation layer reaches more than 10 years.
As described above, be only preferred embodiment of the present invention, when not limiting scope of the invention process with this, the simple equivalence namely generally done according to the present patent application the scope of the claims and invention description content changes and modifies, and all still remains within the scope of the patent.
Claims (1)
1. one kind has the mineral heating furnace flue vacuum heat-preserving tube of insulating refractory casting material layer, comprise steel pipe main body, it is characterized in that: in the tube wall of steel pipe main body, be provided with vacuum cavity and castable collecting cavity, vacuum cavity, the shape of castable collecting cavity is corresponding with the shape of steel pipe main body, vacuum cavity, castable collecting cavity is coaxial, and castable collecting cavity is less than the distance of vacuum cavity to the inner tubal wall of steel pipe main body to the distance of the inner tubal wall of steel pipe main body, the tube wall of steel pipe main body is provided with the first castable refractory hand-hole and the second castable refractory hand-hole, first castable refractory hand-hole and the second castable refractory hand-hole are accommodated cavity with castable and are communicated with, one end of the tube wall of steel pipe main body is provided with annular embedded groove, the other end of the tube wall of steel pipe main body is provided with annular and embeds arm, the external diameter that annular embeds arm is corresponding with the internal diameter of annular embedded groove, the thickness that annular embeds arm is corresponding with the width of annular embedded groove, be filled with in castable collecting cavity in castable collecting cavity to be filled with in castable collecting cavity and be filled with the insulating refractory casting material after stirring that adds water, insulating refractory casting material is made up of following raw material: mullite, Zirconium oxide fibre, magnesium carbonate, alumina hollow ball, alumina powder, fine silica powder, sodium silicate, wherein, mullite, alumina hollow ball, Zirconium oxide fibre are aggregate, and magnesium carbonate, alumina powder, fine silica powder, sodium silicate are matrix, the parts by weight of above-mentioned raw materials are: mullite 20 ~ 30 parts, Zirconium oxide fibre 10 ~ 20 parts, 5 ~ 10 parts, magnesium carbonate, alumina hollow ball 20 ~ 25 parts, alumina powder 20 ~ 25 parts, fine silica powder 1 ~ 5 part, sodium silicate 1 ~ 5 part, the inner tubal wall of steel pipe main body offers permeability hole, permeability hole and castable are accommodated cavity and are communicated with, and insulating refractory casting material like this oozes out from permeability hole and forms insulating refractory casting material layer, the outer wall of annular embedding arm is provided with adiabatic gum collecting circular groove, the outer side wall of annular embedded groove is arranged adiabatic gum collecting circular groove, the tube wall of steel pipe main body is provided with adiabatic gum hand-hole, adiabatic gum hand-hole is accommodated circular groove with the adiabatic gum on the outer side wall of annular embedded groove and is communicated with, first castable refractory hand-hole is through after the isolation arm vacuum cavity and annular embedded groove, accommodate cavity with castable to be communicated with, the second castable refractory hand-hole is communicated with through accommodating cavity with castable after vacuum cavity and the annular isolation arm embedded arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410581266.XA CN104329538B (en) | 2014-10-27 | 2014-10-27 | There is the mineral heating furnace flue vacuum heat-preserving tube of insulating refractory casting material layer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410581266.XA CN104329538B (en) | 2014-10-27 | 2014-10-27 | There is the mineral heating furnace flue vacuum heat-preserving tube of insulating refractory casting material layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104329538A true CN104329538A (en) | 2015-02-04 |
| CN104329538B CN104329538B (en) | 2016-06-08 |
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| CN201410581266.XA Active CN104329538B (en) | 2014-10-27 | 2014-10-27 | There is the mineral heating furnace flue vacuum heat-preserving tube of insulating refractory casting material layer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111153707A (en) * | 2020-02-13 | 2020-05-15 | 郑州驹达新材料科技有限公司 | Composite refractory prefabricated part for cylindrical kiln and preparation method thereof |
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| GB794761A (en) * | 1955-11-02 | 1958-05-07 | Atomic Energy Authority Uk | Improvements in or relating to couplings for vacuum insulated pipelines |
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| 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 |
| CN203067982U (en) * | 2013-02-26 | 2013-07-17 | 沈双喜 | Vacuum heat-insulation and energy-conservation conveying pipeline for thermal fluid |
| CN103539472A (en) * | 2013-11-09 | 2014-01-29 | 宁夏天纵泓光余热发电技术有限公司 | Light thermal insulation refractory castable |
| JP2014045650A (en) * | 2013-11-27 | 2014-03-13 | Mirai Ind Co Ltd | Box for wiring or piping |
| CN203628153U (en) * | 2013-11-22 | 2014-06-04 | 中国石油天然气股份有限公司 | Prestressed vacuum heat insulation pipe |
| CN203671146U (en) * | 2013-12-06 | 2014-06-25 | 安徽科达洁能股份有限公司 | Heat-preserving pipeline |
| CN203857181U (en) * | 2014-02-18 | 2014-10-01 | 温州钜源流体设备有限公司 | Insulated food sanitary pipe |
-
2014
- 2014-10-27 CN CN201410581266.XA patent/CN104329538B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB794761A (en) * | 1955-11-02 | 1958-05-07 | Atomic Energy Authority Uk | Improvements in or relating to couplings for vacuum insulated pipelines |
| CN201779408U (en) * | 2009-07-10 | 2011-03-30 | 姜文哲 | Fluid transportation pipe with functions of solar energy heating and vacuum heat preservation |
| 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 |
| CN203067982U (en) * | 2013-02-26 | 2013-07-17 | 沈双喜 | Vacuum heat-insulation and energy-conservation conveying pipeline for thermal fluid |
| CN103539472A (en) * | 2013-11-09 | 2014-01-29 | 宁夏天纵泓光余热发电技术有限公司 | Light thermal insulation refractory castable |
| CN203628153U (en) * | 2013-11-22 | 2014-06-04 | 中国石油天然气股份有限公司 | Prestressed vacuum heat insulation pipe |
| JP2014045650A (en) * | 2013-11-27 | 2014-03-13 | Mirai Ind Co Ltd | Box for wiring or piping |
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| CN203857181U (en) * | 2014-02-18 | 2014-10-01 | 温州钜源流体设备有限公司 | Insulated food sanitary pipe |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111153707A (en) * | 2020-02-13 | 2020-05-15 | 郑州驹达新材料科技有限公司 | Composite refractory prefabricated part for cylindrical kiln and preparation method thereof |
| CN111153707B (en) * | 2020-02-13 | 2022-05-13 | 郑州驹达新材料科技有限公司 | Composite refractory prefabricated part for cylindrical kiln and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN104329538B (en) | 2016-06-08 |
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Address after: 750002 Yinchuan Ningfeng District, the Ningxia Hui Autonomous Region 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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