CN104329537A - Submerged arc furnace flue vacuum insulation pipe with compound fireproof pouring material layer - Google Patents
Submerged arc furnace flue vacuum insulation pipe with compound fireproof pouring material layer Download PDFInfo
- Publication number
- CN104329537A CN104329537A CN201410581181.1A CN201410581181A CN104329537A CN 104329537 A CN104329537 A CN 104329537A CN 201410581181 A CN201410581181 A CN 201410581181A CN 104329537 A CN104329537 A CN 104329537A
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- parts
- castable
- main body
- steel pipe
- cavity
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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
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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
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
Abstract
The invention provides a submerged arc furnace flue vacuum insulation pipe with a compound 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 compound refractory pouring material which is uniformly stirred after adding water. The compound refractory pouring material is made of the following components in parts by weight: 10-15 parts of corundum, 10-15 parts of mullite, 10-15 parts of silicon carbide, 5-10 parts of silica fume, 15-20 parts of magnesite, 10-15 parts of graphite, 10-15 parts of alumina micro powder, 2-10 parts of phenolic resin, and 3-10 parts of carbon nano tube; permeation holes are formed on the inner pipe wall of the steel pipe main body; the permeation holes are communicated with the pouring material containing cavity; thus, the compound refractory pouring material can be permeated from the permeation holes, and the compound 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 composite castable refractory 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 composite castable refractory layer of long service life.
A kind of mineral heating furnace flue vacuum heat-preserving tube with composite castable refractory 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.Be filled with the composite castable refractory after stirring that adds water in castable collecting cavity, composite castable refractory comprises following parts by weight component and makes: 10 ~ 15 parts, corundum, mullite 10 ~ 15 parts, 10 ~ 15 parts, silicon carbide, silicon ash 5 ~ 10 parts, 15 ~ 20 parts, magnesia, 10 ~ 15 parts, graphite, alumina powder 10 ~ 15 parts, 2 ~ 10 parts, phenolic resin, carbon nano-tube 3 ~ 10 parts; Particle and fine powder is made after the mixing of magnesia, graphite, corundum, mullite, silicon carbide, alumina powder, silicon ash, carbon nano-tube, phenolic resin are as admixture, wherein, the parts by weight of particle and fine powder are: particle 50 ~ 55 parts, fine powder 45 ~ 50 parts, particle size range is 1.2 ~ 1.6mm, fine powder particle diameter is 0.4 ~ 0.8mm, the inner tubal wall of steel pipe main body offers permeability hole, permeability hole and castable are accommodated cavity and are communicated with, and composite castable refractory like this oozes out from permeability hole and forms composite castable refractory layer.
The above-mentioned mineral heating furnace flue vacuum heat-preserving tube with composite castable refractory 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 composite castable refractory layer, in composite castable refractory in castable collecting cavity, magnesia at high temperature, obtain magnesium oxide, silica, calcium oxide, magnesium oxide, silica is exotic material, silica and magnesium oxide react and form forsterite, magnesium oxide and alumina powder react and form spinel, carbon nano-tube can adsorb material in castable for castable provides mechanical strength, spinel, carbon nano-tube, it is slow that silicon acting in conjunction that is grey and phenolic resin can overcome castable refractory hardening speed, demould time is long, dry tenacity is low, and composite castable refractory 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 composite castable refractory layer can not reduce, in addition, because the mineral heating furnace flue vacuum heat-preserving tube with composite castable refractory 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 composite castable refractory 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 composite castable refractory 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 composite castable refractory 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 composite castable refractory layer in Fig. 1.
In figure: the mineral heating furnace flue vacuum heat-preserving tube 10 with composite castable refractory 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, composite castable refractory 600, composite castable refractory layer 601.
Embodiment
Please refer to shown in Fig. 1 to Fig. 4, the mineral heating furnace flue vacuum heat-preserving tube 10 with composite castable refractory 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 composite castable refractory 600, composite castable refractory 600 comprises following parts by weight component and makes: 10 ~ 15 parts, corundum, mullite 10 ~ 15 parts, 10 ~ 15 parts, silicon carbide, silicon ash 5 ~ 10 parts, 15 ~ 20 parts, magnesia, 10 ~ 15 parts, graphite, alumina powder 10 ~ 15 parts, 2 ~ 10 parts, phenolic resin, carbon nano-tube 3 ~ 10 parts; Particle and fine powder is made after the mixing of magnesia, graphite, corundum, mullite, silicon carbide, alumina powder, silicon ash, carbon nano-tube, phenolic resin are as admixture, wherein, the parts by weight of particle and fine powder are: particle 50 ~ 55 parts, fine powder 45 ~ 50 parts, particle size range is 1.2 ~ 1.6mm, fine powder particle diameter is 0.4 ~ 0.8mm, and composite castable refractory 600 is extruded and oozes out to form composite castable refractory 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 composite castable refractory 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 composite castable refractory 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 composite castable refractory layer, in composite castable refractory 600 in castable collecting cavity 120, magnesia at high temperature, obtain magnesium oxide, silica, calcium oxide, magnesium oxide, silica is exotic material, silica and magnesium oxide react and form forsterite, magnesium oxide and alumina powder react and form spinel, carbon nano-tube can adsorb material in castable for castable provides mechanical strength, spinel, carbon nano-tube, it is slow that silicon acting in conjunction that is grey and phenolic resin can overcome castable refractory hardening speed, demould time is long, dry tenacity is low, and composite castable refractory 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 composite castable refractory layer can not reduce, in addition, because the mineral heating furnace flue vacuum heat-preserving tube 10 with composite castable refractory 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 composite castable refractory 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 composite castable refractory after stirring that adds water, composite castable refractory comprises following parts by weight component and makes: 10 ~ 15 parts, corundum, mullite 10 ~ 15 parts, 10 ~ 15 parts, silicon carbide, silicon ash 5 ~ 10 parts, 15 ~ 20 parts, magnesia, 10 ~ 15 parts, graphite, alumina powder 10 ~ 15 parts, 2 ~ 10 parts, phenolic resin, carbon nano-tube 3 ~ 10 parts, particle and fine powder is made after the mixing of magnesia, graphite, corundum, mullite, silicon carbide, alumina powder, silicon ash, carbon nano-tube, phenolic resin are as admixture, wherein, the parts by weight of particle and fine powder are: particle 50 ~ 55 parts, fine powder 45 ~ 50 parts, particle size range is 1.2 ~ 1.6mm, fine powder particle diameter is 0.4 ~ 0.8mm, the inner tubal wall of steel pipe main body offers permeability hole, permeability hole and castable are accommodated cavity and are communicated with, and composite castable refractory like this oozes out from permeability hole and forms composite castable refractory 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 |
|---|---|---|---|
| CN201410581181.1A CN104329537B (en) | 2014-10-27 | 2014-10-27 | There is the mineral heating furnace flue vacuum heat-preserving tube of composite castable refractory layer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410581181.1A CN104329537B (en) | 2014-10-27 | 2014-10-27 | There is the mineral heating furnace flue vacuum heat-preserving tube of composite castable refractory layer |
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| Publication Number | Publication Date |
|---|---|
| CN104329537A true CN104329537A (en) | 2015-02-04 |
| CN104329537B CN104329537B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410581181.1A Active CN104329537B (en) | 2014-10-27 | 2014-10-27 | There is the mineral heating furnace flue vacuum heat-preserving tube of composite castable refractory layer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112851377A (en) * | 2021-01-23 | 2021-05-28 | 南京科技职业学院 | High-temperature structural ceramic material doped with polymer tubular fibers |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4349051A (en) * | 1979-03-23 | 1982-09-14 | Lothar Schilf | Thermal insulation of vessels and method of fabrication |
| CN2646515Y (en) * | 2003-10-30 | 2004-10-06 | 陈海渊 | High temperature resistant and abrasion proofing multiple-unit tube |
| GB2401921A (en) * | 2003-01-28 | 2004-11-24 | T J Corbishley | Shrouded thermal insulation for submarine pipelines |
| CN101274695A (en) * | 2008-04-15 | 2008-10-01 | 山西科泰微技术有限公司 | Combined protective container |
| CN201382242Y (en) * | 2009-03-03 | 2010-01-13 | 招远市天星塑料制品厂 | Thermostatic joint |
| CN201703731U (en) * | 2010-04-28 | 2011-01-12 | 宜昌三峡新能源设备有限公司 | Heat-insulation box additionally provided with vacuum glass tubes in foaming layer |
| CN201779366U (en) * | 2010-08-18 | 2011-03-30 | 龙星化工股份有限公司 | Hot air pipeline for carbon black production equipment by oil furnace method |
| CN203671146U (en) * | 2013-12-06 | 2014-06-25 | 安徽科达洁能股份有限公司 | Heat-preserving pipeline |
-
2014
- 2014-10-27 CN CN201410581181.1A patent/CN104329537B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4349051A (en) * | 1979-03-23 | 1982-09-14 | Lothar Schilf | Thermal insulation of vessels and method of fabrication |
| US4417382A (en) * | 1979-03-23 | 1983-11-29 | Lothar Schilf | Method of thermally insulating vessels |
| GB2401921A (en) * | 2003-01-28 | 2004-11-24 | T J Corbishley | Shrouded thermal insulation for submarine pipelines |
| CN2646515Y (en) * | 2003-10-30 | 2004-10-06 | 陈海渊 | High temperature resistant and abrasion proofing multiple-unit tube |
| CN101274695A (en) * | 2008-04-15 | 2008-10-01 | 山西科泰微技术有限公司 | Combined protective container |
| CN201382242Y (en) * | 2009-03-03 | 2010-01-13 | 招远市天星塑料制品厂 | Thermostatic joint |
| CN201703731U (en) * | 2010-04-28 | 2011-01-12 | 宜昌三峡新能源设备有限公司 | Heat-insulation box additionally provided with vacuum glass tubes in foaming layer |
| CN201779366U (en) * | 2010-08-18 | 2011-03-30 | 龙星化工股份有限公司 | Hot air pipeline for carbon black production equipment by oil furnace method |
| CN203671146U (en) * | 2013-12-06 | 2014-06-25 | 安徽科达洁能股份有限公司 | Heat-preserving pipeline |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112851377A (en) * | 2021-01-23 | 2021-05-28 | 南京科技职业学院 | High-temperature structural ceramic material doped with polymer tubular fibers |
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| CN104329537B (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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