CN104329538B - There is the mineral heating furnace flue vacuum heat-preserving tube of insulating refractory casting material layer - Google Patents
There is the mineral heating furnace flue vacuum heat-preserving tube of insulating refractory casting material layer Download PDFInfo
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- CN104329538B CN104329538B CN201410581266.XA CN201410581266A CN104329538B CN 104329538 B CN104329538 B CN 104329538B CN 201410581266 A CN201410581266 A CN 201410581266A CN 104329538 B CN104329538 B CN 104329538B
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- main body
- steel pipe
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- pipe main
- annular
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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
Abstract
A kind of mineral heating furnace flue vacuum heat-preserving tube with insulating refractory casting material layer, comprise steel pipe main body, the tube wall of steel pipe main body is provided with vacuum cavity and mould material collecting cavity, the shape of vacuum cavity, mould material collecting cavity and the shape of steel pipe main body are answered, and vacuum cavity, mould material collecting cavity is coaxial. it is filled with to add water in mould material collecting cavity and stirs the insulating refractory casting material after evenly, insulating refractory casting material is made up of following raw material: mullite, Zirconium oxide fibre, magnesiumcarbonate, alumina hollow ball, alumina powder, fine silica powder, water glass, mullite, alumina hollow ball, Zirconium oxide fibre is aggregate, magnesiumcarbonate, alumina powder, fine silica powder, water glass is matrix, the inner tubal wall of steel pipe main body has offered permeability hole, permeability hole is accommodated cavity with mould material and is connected, insulating refractory casting material like this oozes out from permeability hole and forms insulating refractory casting material layer.
Description
Technical field
The present invention relates to pipeline heat-insulating technology field, in particular to a kind of mineral heating furnace flue vacuum heat-preserving tube with insulating refractory casting material layer.
Background technology
The simple lagging material of the existing many employings of mineral heating furnace flue utilidor carries out piping insulation, because lagging material does not possess intensity, in long-time operational process, can occur that pipeline is inhaled flat; Coming off due to lagging material, reduces flue-gas temperature, fume afterheat generating efficiency is obviously reduced simultaneously.
Summary of the invention
In view of this, it is necessary to the mineral heating furnace flue vacuum heat-preserving tube with insulating refractory casting material layer of a kind of high insulating effect and long service life is provided.
A kind of mineral heating furnace flue vacuum heat-preserving tube with insulating refractory casting material layer, comprise steel pipe main body, the tube wall of steel pipe main body is provided with vacuum cavity and mould material collecting cavity, vacuum cavity, the shape of mould material collecting cavity and the shape of steel pipe main body should, vacuum cavity, mould material collecting cavity is coaxial, and mould material 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 refractory castable filling orifice and the 2nd refractory castable filling orifice, first refractory castable filling orifice and the 2nd refractory castable filling orifice are accommodated cavity with mould material and are connected, one end of the tube wall of steel pipe main body is provided with annular and embeds 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 that annular embeds groove, the thickness that annular embeds arm is corresponding with the width that annular embeds groove.It is filled with to add water in mould material collecting cavity and stirs the insulating refractory casting material after evenly, insulating refractory casting material is made up of following raw material: mullite, Zirconium oxide fibre, magnesiumcarbonate, alumina hollow ball, alumina powder, fine silica powder, water glass, wherein, mullite, alumina hollow ball, Zirconium oxide fibre are aggregate, and magnesiumcarbonate, alumina powder, fine silica powder, water glass are matrix; The weight part number of above-mentioned raw materials is: mullite 20 ~ 30 parts, Zirconium oxide fibre 10 ~ 20 parts, 5 ~ 10 parts, magnesiumcarbonate, alumina hollow ball 20 ~ 25 parts, alumina powder 20 ~ 25 parts, fine silica powder 1 ~ 5 part, water glass 1 ~ 5 part, the inner tubal wall of steel pipe main body has offered permeability hole, permeability hole is accommodated cavity with mould material and is connected, 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, the tube wall of steel pipe main body is provided with vacuum cavity, the shape of vacuum cavity and the shape of steel pipe main body should, and have arrange in the mineral heating furnace flue vacuum heat-preserving tube of insulating refractory casting material layer mould material collecting cavity, in insulating refractory casting material in mould material collecting cavity, alumina hollow ball in aggregate has special surface tissue and inner hollow, surface irregularity, increase contact specific 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, magnesiumcarbonate decomposes generation carbon dioxide under the high temperature conditions, carbon dioxide is discharged the mould material wiped from being coated with, so that mould material forms pore, simultaneous oxidation zirconium fiber can ensure the thermal shock resistance of mould material, and magnesium oxide and alumina powder reaction generate magnesium-aluminium spinel, and insulating refractory casting material from mould material accommodate cavity permeability hole ooze out after, floating by workmen again, and on the inner tubal wall of steel pipe main body, finally form one layer of mould material protective layer, so can ensure that pipeline outer wall temperature (under normal temperature state) is lower than 50 DEG C, can effectively ensure that the flue-gas temperature having in the mineral heating furnace flue vacuum heat-preserving tube of insulating refractory casting material layer can not reduce, in addition, it is steel design owing to having the mineral heating furnace flue vacuum heat-preserving tube of insulating refractory casting material layer, ensure that the thermal insulation layer people in operational process after having constructed can enter to carry out in pipeline checking clear ash, and do not trampled on breakage, the work-ing life of thermal insulation layer reaches more than 10 years.
Accompanying drawing explanation
Accompanying drawing 1 is the cross-sectional view of the mineral heating furnace flue vacuum heat-preserving tube with 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 refractory castable filling orifice 1101, 2nd refractory castable filling orifice 1102, adiabatic gum filling orifice 1103, vacuum cavity 111, annular embeds groove 112, outer side wall 1120, annular embeds arm 113, outer wall 1130, adiabatic gum collecting ring groove 114, adiabatic gum collecting ring groove 115, mould material collecting cavity 120, isolation arm 130, isolation arm 140, pure aluminium silicate layer 32, wire netting 33, asbestos plate 34, ceramic fiber layer 35, first V-type screw thread dog 360, 2nd V-type screw 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, the tube wall 110 of steel pipe main body 11 is provided with vacuum cavity 111 and mould material collecting cavity 120, vacuum cavity 111, the shape of mould material collecting cavity 120 and the shape of steel pipe main body 11 should, vacuum cavity 111, mould material collecting cavity 120 is coaxial, and mould material collecting cavity 120 is less than, to the distance of the inner tubal wall 1100 of steel pipe main body 11, the 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 refractory castable filling orifice 1101 and the 2nd refractory castable filling orifice 1102, first refractory castable filling orifice 1101 and the 2nd refractory castable filling orifice 1102 are accommodated cavity 120 with mould material and are connected, the inner tubal wall 1100 of steel pipe main body 11 has offered permeability hole 121, permeability hole 121 is accommodated cavity 120 with mould material and is connected. the insulating refractory casting material 600 after filling filled with water stirring evenly in cavity 120 is accommodated to mould material through the first refractory castable filling orifice 1101 and the 2nd refractory castable filling orifice 1102, insulating refractory casting material 600 is made up of following raw material: mullite, Zirconium oxide fibre, magnesiumcarbonate, alumina hollow ball, alumina powder, fine silica powder, water glass, wherein, mullite, alumina hollow ball, Zirconium oxide fibre are aggregate, and magnesiumcarbonate, alumina powder, fine silica powder, water glass are matrix, the weight part number of above-mentioned raw materials is: mullite 20 ~ 30 parts, Zirconium oxide fibre 10 ~ 20 parts, 5 ~ 10 parts, magnesiumcarbonate, alumina hollow ball 20 ~ 25 parts, alumina powder 20 ~ 25 parts, fine silica powder 1 ~ 5 part, water glass 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 and embeds 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 that annular embeds groove 112, and the thickness that annular embeds arm 113 is corresponding with the width that annular embeds groove 112. So, two joints there is the mineral heating furnace flue vacuum heat-preserving tube 10 of insulating refractory casting material layer can mutually by respective annular embedding groove 112, annular embedding arm 113.
Wherein, the first refractory castable filling orifice 1101, after the isolation arm 130 vacuum cavity 111 and annular embedding groove 112, is accommodated cavity 120 with mould material and is connected; 2nd refractory castable filling orifice 1102 is connected with mould material collecting cavity 120 after vacuum cavity 111 and annular embed the isolation arm 140 arm 113.
Further, annular embeds and is provided with adiabatic gum collecting ring groove 114 on the outer wall 1130 of arm 113, annular embeds and arranges adiabatic gum collecting ring groove 115 on the outer side wall 1120 of groove 112, being provided with adiabatic gum filling orifice 1103 on the tube wall 110 of steel pipe main body 11, adiabatic gum filling orifice 1103 embeds the collecting ring groove 115 of the adiabatic gum on the outer side wall 1120 of groove 112 and is connected with annular.
The above-mentioned mineral heating furnace flue vacuum heat-preserving tube 10 with insulating refractory casting material layer, the tube wall 110 of steel pipe main body 11 is provided with vacuum cavity 111, the shape of vacuum cavity 111 and the shape of steel pipe main body 11 should, and have arrange in the mineral heating furnace flue vacuum heat-preserving tube 10 of insulating refractory casting material layer mould material collecting cavity 120, in insulating refractory casting material 600 in mould material collecting cavity 120, alumina hollow ball in aggregate has special surface tissue and inner hollow, surface irregularity, increase contact specific 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, magnesiumcarbonate decomposes generation carbon dioxide under the high temperature conditions, carbon dioxide is discharged the mould material wiped from being coated with, so that mould material forms pore, simultaneous oxidation zirconium fiber can ensure the thermal shock resistance of mould material, and magnesium oxide and alumina powder reaction generate magnesium-aluminium spinel, and insulating refractory casting material from mould material accommodate cavity permeability hole ooze out after, floating by workmen again, and on the inner tubal wall of steel pipe main body, finally form one layer of mould material protective layer, so can ensure that pipeline outer wall temperature (under normal temperature state) is lower than 50 DEG C, can effectively ensure that the flue-gas temperature having in the mineral heating furnace flue vacuum heat-preserving tube 10 of insulating refractory casting material layer can not reduce, in addition, owing to there is the mineral heating furnace flue vacuum heat-preserving tube 10 of insulating refractory casting material layer for steel design, ensure that the thermal insulation layer people in operational process after having constructed can enter to carry out in pipeline checking clear ash, and do not trampled on breakage, the work-ing life of thermal insulation layer reaches more than 10 years.
As described above, it is only the better 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 patent scope 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: the tube wall of steel pipe main body is provided with vacuum cavity and mould material collecting cavity, vacuum cavity, the shape of mould material collecting cavity and the shape of steel pipe main body should, vacuum cavity, mould material collecting cavity is coaxial, and mould material 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 refractory castable filling orifice and the 2nd refractory castable filling orifice, first refractory castable filling orifice and the 2nd refractory castable filling orifice are accommodated cavity with mould material and are connected, one end of the tube wall of steel pipe main body is provided with annular and embeds 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 that annular embeds groove, the thickness that annular embeds arm is corresponding with the width that annular embeds groove, it is filled with to add water in mould material collecting cavity and stirs the insulating refractory casting material after evenly, insulating refractory casting material is made up of following raw material: mullite, Zirconium oxide fibre, magnesiumcarbonate, alumina hollow ball, alumina powder, fine silica powder, water glass, wherein, mullite, alumina hollow ball, Zirconium oxide fibre are aggregate, and magnesiumcarbonate, alumina powder, fine silica powder, water glass are matrix, the weight part number of above-mentioned raw materials is: mullite 20 ~ 30 parts, Zirconium oxide fibre 10 ~ 20 parts, 5 ~ 10 parts, magnesiumcarbonate, alumina hollow ball 20 ~ 25 parts, alumina powder 20 ~ 25 parts, fine silica powder 1 ~ 5 part, water glass 1 ~ 5 part, the inner tubal wall of steel pipe main body has offered permeability hole, permeability hole is accommodated cavity with mould material and is connected, and insulating refractory casting material like this oozes out from permeability hole and forms insulating refractory casting material layer, annular embeds and is provided with adiabatic gum collecting ring groove on the outer wall of arm, annular embeds and arranges adiabatic gum collecting ring groove on the outer side wall of groove, being provided with adiabatic gum filling orifice on the tube wall of steel pipe main body, adiabatic gum filling orifice embeds the collecting ring groove of the adiabatic gum on the outer side wall of groove and is connected with annular, first refractory castable filling orifice is after the isolation arm vacuum cavity and annular embedding groove, accommodating cavity with mould material to be connected, the 2nd refractory castable filling orifice is connected with mould material collecting cavity after vacuum cavity and annular embed the isolation arm 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 |
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| Publication Number | Publication Date |
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| CN104329538A CN104329538A (en) | 2015-02-04 |
| CN104329538B true 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
Citations (8)
| 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 thermal 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5690392B2 (en) * | 2013-11-27 | 2015-03-25 | 未来工業株式会社 | Wiring / Piping box |
-
2014
- 2014-10-27 CN CN201410581266.XA patent/CN104329538B/en active Active
Patent Citations (8)
| 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 thermal 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 |
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| CN104329538A (en) | 2015-02-04 |
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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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