CN104406179B - Submerged arc furnace flue gas vacuum insulation tube with mullite fiber refractory castable layer - Google Patents
Submerged arc furnace flue gas vacuum insulation tube with mullite fiber refractory castable layer Download PDFInfo
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- CN104406179B CN104406179B CN201410581239.2A CN201410581239A CN104406179B CN 104406179 B CN104406179 B CN 104406179B CN 201410581239 A CN201410581239 A CN 201410581239A CN 104406179 B CN104406179 B CN 104406179B
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Abstract
The invention relates to a submerged arc furnace flue gas vacuum insulation tube with a mullite fiber refractory castable layer. The submerged arc furnace flue gas vacuum insulation tube comprises a steel tube main body, wherein a vacuum cavity and a castable accommodating cavity are arranged in the tube wall of the steel tube main body; the shape of the vacuum cavity and the shape of the castable accommodating cavity correspond to the shape of the steel tube main body; the vacuum cavity and the castable accommodating cavity are coaxial. The castable accommodating cavity is filled with mullite fiber refractory castable; the mullite fiber refractory castable 600 comprises coarse aggregate, medium aggregate, fine aggregate, binding agent, silica powder, alumina micro powder and yttrium oxide; the coarse aggregate comprises mullite and zirconia fibers; the medium aggregate comprises flint clay, silicon carbide and zircon; the fine aggregate comprises mullite; permeation holes are formed in the inner tube wall of the steel tube main body, and are communicated with the castable accommodating cavity; therefore, the mullite fiber refractory castable permeates out from the permeation holes to form the mullite fiber refractory castable layer.
Description
Technical field
The present invention relates to pipeline heat-insulating technology field, particularly to a kind of ore deposit with the mullite fiber refractory casting bed of material
Heating furnace flue vacuum heat-preserving tube.
Background technology
Existing mineral heating furnace flue utilidor is many to carry out pipe insulation using simple insulation material, because of insulation material not
Possess intensity, can in long running, occur pipeline inhaled flat；Simultaneously because coming off of insulation material, reduce
Flue-gas temperature, makes fume afterheat generating efficiency substantially reduce.
Content of the invention
In view of this it is necessary to provide a kind of high insulating effect and long service life has mullite fiber refractory casting
The mineral heating furnace flue vacuum heat-preserving tube of the bed of material.
A kind of mineral heating furnace flue vacuum heat-preserving tube with the mullite fiber refractory casting bed of material, including steel pipe main body, steel
Be provided with vacuum cavity and castable in the tube wall of tube body and house cavity, vacuum cavity, castable house the shape of cavity with
The shape of steel pipe main body is corresponding, and vacuum cavity, castable house cavity coaxially, and castable houses cavity to steel pipe main body
The distance of inner tubal wall is less than the distance of the inner tubal wall to steel pipe main body for the vacuum cavity, the tube wall of steel pipe main body is provided with first resistance to
Fiery castable hand-hole and the second castable refractory hand-hole, the first castable refractory hand-hole and the injection of the second castable refractory
Hole houses cavity with castable and connects, and one end of the tube wall of steel pipe main body is provided with annular embedded groove, the tube wall of steel pipe main body
The other end is provided with the embedded arm of annular, and the external diameter of the embedded arm of annular is corresponding with the internal diameter of annular embedded groove, the embedded arm of annular
Thickness is corresponding with the width of annular embedded groove.It is filled with the mullite fiber after stirring that adds water in castable host cavity body
Castable refractory, mullite fiber castable refractory includes coarse aggregate, middle aggregate, fine aggregate, binding agent, silicon powder, aluminum oxide
The parts by weight of micro mist, yittrium oxide, wherein above-mentioned raw materials are: coarse aggregate 10～20, middle aggregate 30～35, fine aggregate 15～20,
Binding agent 5～10, silicon powder 5～10, alumina powder 10～15, yittrium oxide 5～10, wherein, coarse aggregate include mullite,
Zirconium oxide fibre；Middle aggregate includes flint clay, carborundum and zircon, and fine aggregate is mullite；Wherein, binding agent include following heavy
Amount weighbf component: magnesium silicate 20～40, phosphate 80～60, the inner tubal wall of steel pipe main body offers permeability hole, permeability hole with
Castable houses cavity connection, and such mullite fiber castable refractory oozes out from permeability hole and forms fire-resistant gravity flow pouring material
Layer.
The above-mentioned mineral heating furnace flue vacuum heat-preserving tube with the mullite fiber refractory casting bed of material, in the tube wall of steel pipe main body
It is provided with vacuum cavity, the shape of vacuum cavity is corresponding with the shape of steel pipe main body, and has mullite fiber refractory casting
In the mineral heating furnace flue vacuum heat-preserving tube of the bed of material, setting castable houses cavity, and the mullite fiber in castable host cavity body is resistance to
In fiery castable, zircon pyrolytic is changed into zirconium oxide and silica, and the aluminum oxide in high grade bauxite is with oxidation reactive magnesium simultaneously
Carry out calcining and generate spinelle, simultaneous oxidation zirconium can make up the microcrack of microcrack generation, is in addition being protected using yittrium oxide
So that Zirconium oxide fibre is made to combine closely with the product of conversion under high temperature, with this on the premise of holding the stability of Zirconium oxide fibre
To improve resist chemical and the anti-wear performance of mullite fiber castable refractory, and mullite fiber castable refractory is from cast
After oozing out in the permeability hole of material collecting cavity more floating by workmen, and final formation one on the inner tubal wall of steel pipe main body
Layer castable protective layer, so can ensure that pipeline outer wall temperature (under normal temperature state) is less than 50 DEG C, can be effectively ensured and have
Flue-gas temperature in the mineral heating furnace flue vacuum heat-preserving tube of the mullite fiber refractory casting bed of material will not reduce, further, since tool
Have the mullite fiber refractory casting bed of material mineral heating furnace flue vacuum heat-preserving tube be steel design it is ensured that construction after the completion of insulation
Layer people in running can enter and carry out in pipeline checking deashing, and is not trampled on breakage, and the service life of heat-insulation layer reaches
More than 10 years.
Brief description
Accompanying drawing 1 is the mineral heating furnace flue vacuum heat-preserving with the mullite fiber refractory casting bed of material of a better embodiment
The cross-sectional view of pipe.
Accompanying drawing 2 be Fig. 1 in there is steel pipe in the mineral heating furnace flue vacuum heat-preserving tube of the mullite fiber refractory casting bed of material
The cross-sectional view of main body.
Accompanying drawing 3 be Fig. 1 in there is steel pipe in the mineral heating furnace flue vacuum heat-preserving tube of the mullite fiber refractory casting bed of material
The structural representation of main body.
Accompanying drawing 4 be Fig. 1 in there is steel pipe in the mineral heating furnace flue vacuum heat-preserving tube of the mullite fiber refractory casting bed of material
The structural representation of another angle of main body.
In figure: there is the mineral heating furnace flue vacuum heat-preserving tube 10 of the mullite fiber refractory casting bed of material, steel pipe main body 11, pipe
Wall 110, inner tubal wall 1100, the first castable refractory hand-hole 1101, the second castable refractory hand-hole 1102, adiabatic gum injection
Hole 1103, vacuum cavity 111, annular embedded groove 112, lateral wall 1120, the embedded arm 113 of annular, outer wall 1130, adiabatic gum house
Cannelure 114, adiabatic gum house cannelure 115, castable houses cavity 120, isolation arm 130, isolation arm 140, aluminum silicate layer
32nd, wire netting 33, asbestos board 34, ceramic fiber layer 35, the first V-shaped screw thread dog 360, the second V-shaped screw thread dog 361, fire resisting
Gravity flow pouring material 600, fire-resistant gravity flow pouring material layer 601.
Specific embodiment
Refer to shown in Fig. 1 to Fig. 4, there is the mineral heating furnace flue vacuum heat-preserving tube 10 of the mullite fiber refractory casting bed of material
Including steel pipe main body 11, it is provided with vacuum cavity 111 in the tube wall 110 of steel pipe main body 11 and castable houses cavity 120, vacuum
The shape that cavity 111, castable house cavity 120 is corresponding with the shape of steel pipe main body 11, and vacuum cavity 111, castable are received
Reservoir body 120 is coaxial, and castable houses cavity 120 to the distance of the inner tubal wall 1100 of steel pipe main body 11 less than vacuum cavity
The distance of 111 inner tubal walls 1100 arriving steel pipe main body 11, the tube wall 110 of steel pipe main body 11 is provided with the first castable refractory note
Enter hole 1101 and the second castable refractory hand-hole 1102, the first castable refractory hand-hole 1101 and the second castable refractory note
Enter hole 1102 to connect with castable collecting cavity 120, the inner tubal wall 1100 of steel pipe main body 11 offers permeability hole 121, infiltration
Hole 121 houses cavity 120 with castable and connects.Through the first castable refractory hand-hole 1101 and the injection of the second castable refractory
Hole 1102 houses to castable and fills the mullite fiber castable refractory 600 after stirring that adds water, mullite in cavity 120
Fibre fire-proof castable 600 includes coarse aggregate, middle aggregate, fine aggregate, binding agent, silicon powder, alumina powder, yittrium oxide, its
The parts by weight of middle above-mentioned raw materials are: coarse aggregate 10～20, middle aggregate 30～35, fine aggregate 15～20, binding agent 5～10, silicon
Micro mist 5～10, alumina powder 10～15, yittrium oxide 5～10, wherein, coarse aggregate includes mullite, Zirconium oxide fibre；In
Aggregate includes flint clay, carborundum and zircon, and fine aggregate is mullite；Wherein, binding agent includes following parts by weighbf component: silicon
Sour magnesium 20～40, phosphate 80～60, mullite fiber castable refractory 600 is extruded and oozes out to be formed not from permeability hole 121
Carry out the mineral wool refractory casting bed of material 601.Wherein, in described coarse aggregate, the particle size of mullite is 3.0～2.1mm, zirconium oxide
The length of fiber is 3.0～2.1mm；In described middle aggregate, the particle size of each component is 1.9mm～1mm；Described fine aggregate
Particle size is 0.6～0.1mm.
One end of the tube wall 110 of steel pipe main body 11 is provided with annular embedded groove 112, the tube wall 110 of steel pipe main body 11 another
One end is provided with the embedded arm 113 of annular, and the external diameter of the embedded arm 113 of annular is corresponding with the internal diameter of annular embedded groove 112, and annular is embedding
The thickness entering arm 113 is corresponding with the width of annular embedded groove 112.So, two sections have the mullite fiber refractory casting bed of material
Mineral heating furnace flue vacuum heat-preserving tube 10 can pass through mutually respective annular embedded groove 112, the embedded arm 113 of annular
Wherein, the first castable refractory hand-hole 1101 is through the isolation vacuum cavity 111 and annular embedded groove 112
After arm 130, house cavity 120 with castable and connect；Second castable refractory hand-hole 1102 passes through vacuum cavity 111 and annular
House cavity 120 with castable after isolation arm 140 between embedded arm 113 to connect.
Further, the outer wall 1130 of the embedded arm 113 of annular is provided with adiabatic gum and houses cannelure 114, annular is embedded
On the lateral wall 1120 of groove 112, setting adiabatic gum houses cannelure 115, and the tube wall 110 of steel pipe main body 11 is provided with adiabatic gum
Hand-hole 1103, adiabatic gum hand-hole 1103 houses cannelure 115 with the adiabatic gum on the lateral wall 1120 of annular embedded groove 112
Connection.
The above-mentioned mineral heating furnace flue vacuum heat-preserving tube 10 with the mullite fiber refractory casting bed of material, the pipe of steel pipe main body 11
It is provided with vacuum cavity 111, the shape of vacuum cavity 111 is corresponding with the shape of steel pipe main body 11, and has not coming in wall 110
In the mineral heating furnace flue vacuum heat-preserving tube 10 of the mineral wool refractory casting bed of material, setting castable houses cavity 120, and castable houses
In mullite fiber castable refractory 600 in cavity 120, zircon pyrolytic is changed into zirconium oxide and silica, superfine alum
Aluminum oxide in soil with oxidation reactive magnesium and carries out calcining generation spinelle, and simultaneous oxidation zirconium can make up the micro- of microcrack generation
Crack, in addition so that Zirconium oxide fibre is made and high temperature on the premise of the stability keeping Zirconium oxide fibre using yittrium oxide
The product of lower conversion is combined closely, the resist chemical to improve mullite fiber castable refractory with this and anti-wear performance, and
Mullite fiber castable refractory is after castable houses and oozes out the permeability hole of cavity more floating by workmen, and final
The inner tubal wall of steel pipe main body forms one layer of castable protective layer, so can ensure that pipeline outer wall temperature (under normal temperature state)
Less than 50 DEG C, the cigarette that have the mineral heating furnace flue vacuum heat-preserving tube 10 of the mullite fiber refractory casting bed of material in can be effectively ensured
Temperature degree will not reduce, further, since the mineral heating furnace flue vacuum heat-preserving tube 10 with the mullite fiber refractory casting bed of material is
Steel design it is ensured that construction after the completion of heat-insulation layer in running people can enter carry out in pipeline check deashing, and not by
Trample on breakage, the service life of heat-insulation layer reaches more than 10 years.
As described above, only presently preferred embodiments of the present invention, when can not with this limit the present invention enforcement scope,
The simple equivalence changes generally made according to scope of the present invention patent and invention description content and modification, all still belong to this
In the range of bright patent covers.
Claims (4)
1. a kind of mineral heating furnace flue vacuum heat-preserving tube with the mullite fiber refractory casting bed of material, including steel pipe main body, it is special
Levy and be: be provided with vacuum cavity in the tube wall of steel pipe main body and castable houses cavity, vacuum cavity, castable house cavity
Shape corresponding with the shape of steel pipe main body, it is coaxial that vacuum cavity, castable house cavity, and castable houses cavity to steel
The distance of the inner tubal wall of tube body is less than the distance of the inner tubal wall to steel pipe main body for the vacuum cavity, and the tube wall of steel pipe main body is arranged
The first castable refractory hand-hole and the second castable refractory hand-hole, the first castable refractory hand-hole and the second fire resisting is had to pour
Material feeding hand-hole houses cavity with castable and connects, and one end of the tube wall of steel pipe main body is provided with annular embedded groove, steel pipe main body
The other end of tube wall be provided with the embedded arm of annular, the external diameter of the embedded arm of annular is corresponding with the internal diameter of annular embedded groove, annular
The thickness of embedded arm is corresponding with the width of annular embedded groove；Being filled with castable host cavity body adds water stir after not
Carry out mineral wool castable refractory, it is micro- that mullite fiber castable refractory includes coarse aggregate, middle aggregate, fine aggregate, binding agent, silicon
The parts by weight of powder, alumina powder, yittrium oxide, wherein above-mentioned raw materials are: coarse aggregate 10～20, middle aggregate 30～35, thin bone
Material 15～20, binding agent 5～10, silicon powder 5～10, alumina powder 10～15, yittrium oxide 5～10, wherein, coarse aggregate bag
Include mullite, Zirconium oxide fibre；Middle aggregate includes flint clay, carborundum and zircon, and fine aggregate is mullite；Wherein, binding agent
Including following parts by weighbf component: magnesium silicate 20～40, phosphate 80～60, the inner tubal wall of steel pipe main body offers infiltration
Hole, permeability hole houses cavity with castable and connects, and such mullite fiber castable refractory oozes out from permeability hole and forms fire resisting
The gravity flow pouring bed of material.
2. there is the mineral heating furnace flue vacuum heat-preserving tube of the mullite fiber refractory casting bed of material as claimed in claim 1, it is special
Levy and be: be provided with adiabatic gum on the outer wall of the embedded arm of annular and house cannelure, the lateral wall of annular embedded groove is arranged heat-insulated
Glue houses cannelure, and the tube wall of steel pipe main body is provided with adiabatic gum hand-hole, and adiabatic gum hand-hole is outer with annular embedded groove
Adiabatic gum on the wall of side houses cannelure connection.
3. there is the mineral heating furnace flue vacuum heat-preserving tube of the mullite fiber refractory casting bed of material as claimed in claim 1, it is special
Levy and be: the first castable refractory hand-hole, through after the isolation arm vacuum cavity and annular embedded groove, is received with castable
Reservoir body connect, the second castable refractory hand-hole pass through vacuum cavity and annular embed arm isolation arm after with castable
House cavity connection.
4. there is the mineral heating furnace flue vacuum heat-preserving tube of the mullite fiber refractory casting bed of material as claimed in claim 1, it is special
Levy and be: in mullite fiber castable refractory: in described coarse aggregate, the particle size of mullite is 3.0～2.1mm, zirconium oxide
The length of fiber is 3.0～2.1mm；In described middle aggregate, the particle size of each component is 1.9mm～1mm；Described fine aggregate
Particle size is 0.6～0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410581239.2A CN104406179B (en) | 2014-10-27 | 2014-10-27 | Submerged arc furnace flue gas vacuum insulation tube with mullite fiber refractory castable layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410581239.2A CN104406179B (en) | 2014-10-27 | 2014-10-27 | Submerged arc furnace flue gas vacuum insulation tube with mullite fiber refractory castable layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104406179A CN104406179A (en) | 2015-03-11 |
| CN104406179B true CN104406179B (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410581239.2A Active CN104406179B (en) | 2014-10-27 | 2014-10-27 | Submerged arc furnace flue gas vacuum insulation tube with mullite fiber refractory castable layer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113321518A (en) * | 2021-06-15 | 2021-08-31 | 郑州建信耐火材料成套有限公司 | Refractory material for grate cooler, suspension structure and construction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201326873Y (en) * | 2008-12-25 | 2009-10-14 | 东莞市康达机电工程有限公司 | Vacuum powder insulation pipe sleeve |
| CN201363512Y (en) * | 2009-03-12 | 2009-12-16 | 闫万河 | Vacuum heat-insulation high-temperature pipeline |
| CN102269417A (en) * | 2011-08-09 | 2011-12-07 | 张蕊 | Anticorrosive chimney and anticorrosive method for chimney |
| CN203068540U (en) * | 2012-12-11 | 2013-07-17 | 上海瑞恩能源投资有限公司 | High-temperature abrasion-resistant smoke tube thermal insulation structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5383151B2 (en) * | 2008-10-29 | 2014-01-08 | 京セラ株式会社 | Electronic component mounting board |
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2014
- 2014-10-27 CN CN201410581239.2A patent/CN104406179B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201326873Y (en) * | 2008-12-25 | 2009-10-14 | 东莞市康达机电工程有限公司 | Vacuum powder insulation pipe sleeve |
| CN201363512Y (en) * | 2009-03-12 | 2009-12-16 | 闫万河 | Vacuum heat-insulation high-temperature pipeline |
| CN102269417A (en) * | 2011-08-09 | 2011-12-07 | 张蕊 | Anticorrosive chimney and anticorrosive method for chimney |
| CN203068540U (en) * | 2012-12-11 | 2013-07-17 | 上海瑞恩能源投资有限公司 | High-temperature abrasion-resistant smoke tube thermal insulation structure |
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| CN104406179A (en) | 2015-03-11 |
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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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