CN104034166A - Vacuum heat-insulating brick structure, vacuum heat-insulating device and power frequency sensing electric furnace - Google Patents
Vacuum heat-insulating brick structure, vacuum heat-insulating device and power frequency sensing electric furnace Download PDFInfo
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- CN104034166A CN104034166A CN201410299664.2A CN201410299664A CN104034166A CN 104034166 A CN104034166 A CN 104034166A CN 201410299664 A CN201410299664 A CN 201410299664A CN 104034166 A CN104034166 A CN 104034166A
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- heat
- vacuum
- insulating
- insulation
- vacuum heat
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- 239000011449 brick Substances 0.000 title claims abstract description 61
- 239000002184 metal Substances 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims description 73
- 239000000463 material Substances 0.000 claims description 9
- 238000005260 corrosion Methods 0.000 claims description 6
- 238000005253 cladding Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 abstract description 9
- 229920000742 Cotton Polymers 0.000 abstract description 4
- 230000000875 corresponding Effects 0.000 abstract 2
- 238000010792 warming Methods 0.000 description 8
- 239000007767 bonding agent Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000002349 favourable Effects 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 206010058109 Hangnail Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000037250 Clearance Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000035512 clearance Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The invention discloses a vacuum heat-insulating brick structure, a vacuum heat-insulating device and a power frequency sensing electric furnace. The vacuum heat-insulating brick structure comprises a shell formed by surrounding of plates, a sealed cavity is arranged in the shell, a plurality of insulating cores positioned between a first side face and a second side face of the shell are arranged in the sealed cavity, each insulating core comprises a metal base, an insulating column and a conical ejector which are arranged sequentially, each metal base is provided with a round concave hole used for inserting of one end portion of the corresponding insulating column, and a round concave hole used for inserting of another end portion of the corresponding insulating column is formed at the bottom of each conical ejector. The heat-insulating brick structure is made by adopting the hollow shell, so that cost is lowered, and heat loss is reduced; by adopting a thin plate structure and utilizing the insulating cores, integral strength of the heat-insulating brick structure is improved; when the vacuum heat-insulating brick structure is added in a heating furnace, heat-insulating cotton does not needed to be used in a furnace hearth, so that improving of fireproof rigidity and density is facilitated; the conical heat-insulating ejectors which are uniformly distributed are arranged in a heat-insulating brick, so that plane rigidity is improved.
Description
Technical field
The present invention relates to a kind of insulation construction, more particularly refer to a kind of vacuum heat-preserving brick structure and vacuum insulation and line frequency furnace.
Background technology
In prior art, in various firing equipments, all can adopt heat-insulation layer to carry out heat insulation.The periphery of heat-insulation layer is to adopt common metal material to surround the housing forming.The heat insulation radiating rate that has also just postponed heat due to heat-insulation layer, for the heating furnace working long hours, the housing of its heat-insulation layer periphery also can have higher temperature, the housing of high temperature and air carry out heat exchange, and then the dissipation of heat in heating furnace is gone out, cause the thermal loss of heating furnace.
Therefore, be necessary the insulation construction that exploitation makes new advances, for the shell of heating furnace, reduce scattering and disappearing of heat, improve the thermal efficiency of heating furnace.
Summary of the invention
The object of the invention is to overcome the defect of prior art, a kind of vacuum heat-preserving brick structure and vacuum insulation and line frequency furnace are provided.
For achieving the above object, the present invention is by the following technical solutions:
Vacuum heat-preserving brick structure, comprises by sheet material and encloses the housing forming, and in described housing, is provided with sealed cavity, is provided with several insulation cores between the first side of housing and the second side of housing in described sealed cavity; Described insulation core comprises metab, insulated column and the taper holder being provided with successively, and metab is provided with for inserting the circular shrinkage hole of the end of insulated column; The bottom of taper holder is also provided with for inserting the circular shrinkage hole of insulated column the other end.
Its further technical scheme is: the first described side is the side that is heated that is bordering on pyrotoxin, and the second side is the heat radiation side that is distal to pyrotoxin; The tip of described taper holder is only butted on the inner side of the side that is heated; Described metab is fixed on the inner side of heat radiation side.
Its further technical scheme is: described sheet material is corrosion resistant plate, and described metab, taper holder are stainless steel metal part.
Its further technical scheme is: described housing is provided with vacuum interface.
A vacuum insulation, comprises vacuum equipment, also comprises several foregoing vacuum heat-preserving brick structures that are connected with vacuum equipment pipeline; Described vacuum heat-preserving brick structure connects by the vacuum tube that is provided with successively pipeline.
Its further technical scheme is: the sealed cavity of described vacuum heat-preserving brick structure is also connected with vacuum transducer, also comprises the control circuit being electrically connected with vacuum transducer, vacuum equipment.
Its further technical scheme is: described several vacuum heat-preserving brick structures surround a lagging casing.
A line frequency furnace, comprises body of heater, and described body of heater is provided with the burner hearth for deposite metal, and the bottom of described burner hearth is provided with channel, in described channel, is provided with heater coil; The surrounding of described body of heater comprises heat-insulation layer and the lagging casing that is coated on heat-insulation layer periphery, and described lagging casing consists of several vacuum heat-preserving brick structures.
Its further technical scheme is: described lagging casing comprises the insulation drain pan of being located at the annular insulation cladding of body of heater surrounding and being located at channel below.
Its further technical scheme is: also comprise bell, described bell is provided with heat-insulation layer and is located at the insulation lid of heat-insulation layer surrounding, and described insulation lid consists of at least one vacuum heat-preserving brick structure.
The present invention's beneficial effect is compared with prior art: the present invention adopts the tabular housing of hollow to make insulating brick structure, can reduce costs, and reduce scattering and disappearing of heat, and utilize insulation core to improve the bulk strength of insulating brick structure.While being added on heating furnace, in burner hearth, do not need to re-use heat-preservation cotton, be conducive to improve rigidity and the density of fireproof construction layer; Between insulating brick, adopt special joint mode, piecemeal on important nodal section, and ensure flexible gap; In the middle of insulating brick, adopt uniform tapered heat insulation holder to improve plane stiffness.When the line frequency furnace, warming plate (being insulating brick) adopts corrosion resistant plate to make, to the copper water surface (being bordering on the surface of pyrotoxin) polishing or plating, and to guarantee any surface finish, can the infrared light wave that waits of reverberation; Reverse side (being the surface that insulating brick contacts with air) adopts rough surface, favourable extinction heat absorption.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is the floor map of vacuum heat-preserving brick structure specific embodiment one of the present invention;
Fig. 2 is the vertical view cutaway drawing of Fig. 1;
Fig. 3 is the central cross-sectional view of the insulation core in Fig. 1 embodiment;
Fig. 4 is the cutaway view (arcuate structure) of vacuum heat-preserving brick structure specific embodiment two of the present invention;
Fig. 5 is the partial sectional view (insulation core adopts the fixing frame mode in two ends) of vacuum heat-preserving brick structure specific embodiment three of the present invention;
Fig. 5 A is A portion enlarged drawing and the partial enlarged drawing thereof in Fig. 5;
Fig. 6 is circuit and the pipeline schematic diagram of vacuum insulation specific embodiment of the present invention;
Fig. 7 is the cutaway view of line frequency furnace specific embodiment of the present invention;
Fig. 8 is the top view of Fig. 7.
Reference numeral
10 vacuum heat-preserving brick structure 100 sealed cavities
10A first side 10B the second side
11 housing 16 vacuum interfaces
18 commissural flange 19 clip-connecting rods
191 connection holes portion 192 flat recesses
193 convex epirelief portion 20 insulation cores
21 metab 210 circular shrinkage hole
22 insulated column 23 taper holders
230 circular shrinkage hole 231 connect axial region
232 lug boss 80 bodies of heater
81 burner hearth 82 channels
83 heater coil 84 heat-insulation layers
85 annular insulation cladding 86 insulation drain pans
90 vacuum equipment 91 vacuum tubes
92 vacuum transducer 93 control circuits
97 check valves
The specific embodiment
In order to more fully understand technology contents of the present invention, below in conjunction with specific embodiment, technical scheme of the present invention is further introduced and explanation, but be not limited to this.
If Fig. 1 is to the specific embodiment as shown in Fig. 4, vacuum heat-preserving brick structure 10 of the present invention, comprise by sheet material and enclose the housing 11 forming, in housing 11, be provided with sealed cavity 100, in sealed cavity 100, be provided with several insulation cores 20 between the first side 10A of housing and the second side 10B of housing; Insulation core 20 comprises metab 21, insulated column 22 and the taper holder 23 being provided with successively, and metab 21 is provided with for inserting the circular shrinkage hole 210 of the end of insulated column 22; The bottom of taper holder 23 is also provided with for inserting the circular shrinkage hole 230 of insulated column 22 the other end.Wherein, the first side 10A is the side that is heated that is bordering on pyrotoxin, and the second side 10B is the heat radiation side that is distal to pyrotoxin; The tip of taper holder 23 is only butted on the inner side of the side that is heated; Metab 21 is fixed on the inner side of heat radiation side by modes such as welding.In the present embodiment, sheet material is corrosion resistant plate, and metab, taper holder are stainless steel metal part.Housing 11 is provided with vacuum interface 16, for taking the air in sealed cavity away formation vacuum.Insulated column is ceramic material, and it is connected with metab, taper holder by resistant to elevated temperatures bonding agent.In order to allow a plurality of insulating bricks can form an integral body, at a side of insulating brick, be provided with commissural flange 18.
In above-described embodiment, the tip of taper holder is unfixed, whole insulation core is that one end is fixed, after insulating brick product is used the long period, bonding agent at high temperature may lose efficacy, and whole insulating brick is in the process of overhauling or re-assemblying, can discharge vacuum, now, distance between two sides can have greatly changed, may be due to the inefficacy of bonding agent, may cause taper holder and/or insulated column to come off from metab, and then affect the flatness of insulating brick, even likely produce serious distortion, therefore, in order further to explain this problem, can increase metab, nested syndeton length between taper holder and insulated column, preferably can be more than 10mm, when insulated column length is 25mm, the syndeton length at two ends is respectively 10mm, metab, distance between taper holder is 5mm.Also can adopt Fig. 5, enforcement structure shown in Fig. 5 A, in the tip of taper holder 23, be provided with and connect axial region 231, with the lug boss 232 of being located at the hangnail type on connection axial region 231, in the inner side of the side that is heated, be provided with the clip-connecting rod 19 (adopting the material identical with housing) that connects axial region 231 for embedding, clip-connecting rod 19 is provided with and the connection holes portion 191 that connects axial region and coordinate, connection holes portion is provided with the convex epirelief portion 193 that forms the hangnail type of clamping relation with lug boss, in order to produce deflection when the clamping, on groove, centering offers a flat recess 192, dilatancy during with generation interference fit.Clip-connecting rod 19, after housing integral solder, is first welded on the inner side of the side that is heated.During assembling, connect axial region and match with connection holes portion, adopt the matched in clearance of less gap value between the two, the inclined-plane of convex epirelief portion 193 and lug boss 232 contacts, and does not form clamping and connects.After completing assembling, pass through vacuum equipment, extracting vacuum, two sides of housing come closer, between insulation core and clip-connecting rod, further draw close, under the wedge power effect producing on the inclined-plane of convex epirelief portion 193 and lug boss 232, clip-connecting rod produces distortion, lug boss 232 slips over convex epirelief portion 193, forms being fixedly connected of plug-in.In order to produce larger deflection, the end of as far as possible close connection holes portion of convex epirelief portion.The magnitude of interference of lug boss and convex epirelief portion and the wall thickness of clip-connecting rod, flat recess bottom is with the distance of convex epirelief portion, and during vacuum, the pressure that clip-connecting rod bears is relevant, and the magnitude of interference is generally between 0.05-0.5mm, and the diameter of connection holes portion is between 3-8mm.Such structure, after assembling, while producing for the first time vacuum, clip-connecting rod is just realized reliable plug-in with insulation core and is fixedly connected, in use procedure afterwards, no matter whether bonding agent lost efficacy, the two ends of insulation core are all fixing, the situation that can not come off, has improved service life and the reliability of insulating brick.
As shown in Figure 6, a kind of vacuum insulation of the present invention, comprises vacuum equipment 90, also comprises several vacuum heat-preserving brick structures 10 as described in the previous embodiment that are connected with vacuum equipment 90 pipelines; Vacuum heat-preserving brick structure 10 connects by the vacuum tube 91 that is provided with successively pipeline.The sealed cavity of vacuum heat-preserving brick structure 10 is also connected with vacuum transducer 92, also comprise the control circuit 93 being electrically connected with vacuum transducer 92, vacuum equipment 90, when vacuum is reduced to setting value, control circuit output control signal, start vacuum equipment and carry out work, when vacuum reaches setting value, vacuum equipment quits work.Owing to being provided with check valve 97, the vacuum of insulating vacuum brick can keep the long period, when same applying unit, such vacuum insulation has when more, can adopt fast disassembly type to connect by between vacuum equipment and insulating vacuum brick, allow the same vacuum equipment be a plurality of vacuum insulation extracting vacuum, to save purchase cost, and vacuum equipment adopts removable support.Several vacuum heat-preserving brick structures wherein can surround a lagging casing, for the various high-temperature services that need insulation, such as heating furnace.
As Fig. 7 to Fig. 8, a kind of line frequency furnace of the present invention, comprises body of heater 80, and body of heater 80 is provided with the burner hearth 81 for deposite metal, and the bottom of burner hearth 81 is provided with channel 82, is provided with heater coil 83 in channel 82; The surrounding of body of heater 80 comprises heat-insulation layer 84 (being called again the ramming bed of material) and is coated on the lagging casing of heat-insulation layer 84 peripheries, and lagging casing consists of several vacuum heat-preserving brick structures.Lagging casing comprises the annular insulation cladding 85 of being located at body of heater surrounding and the insulation drain pan 86 of being located at channel 82 belows.Also comprise bell (not shown), bell is provided with heat-insulation layer and is located at the insulation lid of heat-insulation layer surrounding, and insulation lid consists of at least one vacuum heat-preserving brick structure.
The design feature of insulation core and installation method:
Insulation core is comprised of base, insulation shaft (being insulated column) and cone holder (being taper holder), and base and cone holder form by stainless steel car system, and insulation shaft is fired and formed with high density ceramic.Between base and shaft, leave 0.05-0.10mm gap, between shaft and holder, leave 0.20-0.30mm gap.During installing insulating fuse, the axis of fuse be subject to force direction consistent.During installation, first base is welded on insulating vacuum brick that relative burner hearth is outside, plate, then with heatproof glass cement, shaft is bonded on base respectively, then holder is bonded on shaft, be linked to be integral body.The advantage of this structure, while being in the future ageing of binders, insulation core still can normally be worked.Insulation core, according to stressed size and stressed intersecting point, is pressed 80-120mm distributed rectangular between them.Insulation core does not allow to impact with sudden force after installing.
Line frequency furnace of the present invention has following characteristics:
1. with vacuum heat-insulation plate, directly replace line frequency furnace insulating brick;
2. in burner hearth, do not use heat-preservation cotton, be conducive to improve fire-resistant rigidity and density;
3. warming plate adopts special joint mode, piecemeal on important nodal section, and ensure flexible gap;
4. in the middle of warming plate, adopt uniform tapered heat insulation holder to improve plane stiffness;
5. warming plate is made with corrosion resistant plate, to the polishing of the copper water surface or plating, guarantees surface light knot, the infrared light wave that waits of reverberation;
The coarse favourable extinction heat absorption of reverse side;
6. warming plate divides three kinds: its thickness is: burner hearth and the 50-100mm of bell place, the 30-50mm of inductor place;
7. each warming plate adopts vacuum tube and connects mode, regularly detects vacuum and vacuum compensation.
8. every warming plate is connected with a vacuum-pumping tube, and check-valves is housed on pipe, is connected to vacuum means and is set up.
9. vacuum degree control is at 100-0.08pa.
In other embodiment, the housing of insulating brick also can be adopted other material, such as aluminium, galvanized iron sheet, or high-temperature resistant composite material etc.
In sum, the present invention adopts the metal shell of hollow to make insulating brick structure, in order to reduce costs, and reduces scattering and disappearing of heat, adopts light sheet structure, and utilizes insulation core to improve the bulk strength of insulating brick structure.While being added on heating furnace, in burner hearth, do not need to re-use heat-preservation cotton, be conducive to improve fire-resistant rigidity and density; Between insulating brick, adopt special joint mode, piecemeal on important nodal section, and ensure flexible gap; In the middle of insulating brick, adopt uniform tapered heat insulation holder to improve plane stiffness.When the line frequency furnace, warming plate (being insulating brick) adopts corrosion resistant plate to make, to the copper water surface (being bordering on the surface of pyrotoxin) polishing or plating, and to guarantee any surface finish, can the infrared light wave that waits of reverberation; Reverse side (being the surface that insulating brick contacts with air) adopts rough surface, favourable extinction heat absorption.
Above-mentionedly only with embodiment, further illustrate technology contents of the present invention, so that reader is easier to understand, but do not represent that embodiments of the present invention only limit to this, any technology of doing according to the present invention is extended or recreation, is all subject to protection of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (10)
1. vacuum heat-preserving brick structure, is characterized in that comprising by sheet material enclosing the housing forming, and in described housing, is provided with sealed cavity, is provided with several insulation cores between the first side of housing and the second side of housing in described sealed cavity; Described insulation core comprises metab, insulated column and the taper holder being provided with successively, and metab is provided with for inserting the circular shrinkage hole of the end of insulated column; The bottom of taper holder is also provided with for inserting the circular shrinkage hole of insulated column the other end.
2. vacuum heat-preserving brick structure according to claim 1, is characterized in that the first described side is the side that is heated that is bordering on pyrotoxin, and the second side is the heat radiation side that is distal to pyrotoxin; The tip of described taper holder is only butted on the inner side of the side that is heated; Described metab is fixed on the inner side of heat radiation side.
3. vacuum heat-preserving brick structure according to claim 1, is characterized in that described sheet material is corrosion resistant plate, and described metab, taper holder are stainless steel metal part.
4. vacuum heat-preserving brick structure according to claim 1, is characterized in that described housing is provided with vacuum interface.
5. a vacuum insulation, comprises vacuum equipment, characterized by further comprising several vacuum heat-preserving brick structures as described in claim 1-4 any one that are connected with vacuum equipment pipeline; Described vacuum heat-preserving brick structure connects by the vacuum tube that is provided with successively pipeline.
6. vacuum insulation according to claim 5, is characterized in that the sealed cavity of described vacuum heat-preserving brick structure is also connected with vacuum transducer, also comprises the control circuit being electrically connected with vacuum transducer, vacuum equipment.
7. vacuum insulation according to claim 6, is characterized in that several described vacuum heat-preserving brick structures surround a lagging casing.
8. a line frequency furnace, comprises body of heater, and described body of heater is provided with the burner hearth for deposite metal, and the bottom of described burner hearth is provided with channel, in described channel, is provided with heater coil; The surrounding that it is characterized in that described body of heater comprises heat-insulation layer and the lagging casing that is coated on heat-insulation layer periphery, and by several, the vacuum heat-preserving brick structure as described in claim 1-4 any one forms described lagging casing.
9. line frequency furnace according to claim 8, is characterized in that described lagging casing comprises the insulation drain pan of being located at the annular insulation cladding of body of heater surrounding and being located at channel below.
10. line frequency furnace according to claim 8 or claim 9, characterized by further comprising bell, and described bell is provided with heat-insulation layer and is located at the insulation lid of heat-insulation layer surrounding, and described insulation lid consists of at least one vacuum heat-preserving brick structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410299664.2A CN104034166B (en) | 2014-06-27 | 2014-06-27 | Vacuum heat-preserving brick structure and vacuum insulation and line frequency furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410299664.2A CN104034166B (en) | 2014-06-27 | 2014-06-27 | Vacuum heat-preserving brick structure and vacuum insulation and line frequency furnace |
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| Publication Number | Publication Date |
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| CN104034166A true CN104034166A (en) | 2014-09-10 |
| CN104034166B CN104034166B (en) | 2017-12-05 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1471102A1 (en) * | 1962-07-13 | 1969-10-23 | Detrick M H Co | Basic refractory bricks molded together with an inlay and process for their manufacture |
| US4389189A (en) * | 1980-07-29 | 1983-06-21 | M. H. Detrick Co., Ltd. | Refractory components for furnaces |
| WO2007042056A1 (en) * | 2005-10-06 | 2007-04-19 | Refratechnik Holding Gmbh | Cassette chamber in a refractory furnace and shaped brick for the same and method for production of said shaped brick |
| CN201306926Y (en) * | 2008-12-12 | 2009-09-09 | 北京创导工业陶瓷有限公司 | Hollow periphery brick for kiln car pedestal |
| CN202687971U (en) * | 2012-05-31 | 2013-01-23 | 郑州东方均质材料有限责任公司 | Fire-resistant hollow brick |
| CN202938645U (en) * | 2012-10-19 | 2013-05-15 | 徐敏 | Hollow composite refractory brick |
| CN103422582A (en) * | 2013-07-17 | 2013-12-04 | 戴长虹 | Ceramic composite vacuum insulation plate and preparation method thereof |
| CN203928735U (en) * | 2014-06-27 | 2014-11-05 | 佛山市承安铜业有限公司 | Vacuum heat-preserving brick structure and vacuum insulation and line frequency furnace |
-
2014
- 2014-06-27 CN CN201410299664.2A patent/CN104034166B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1471102A1 (en) * | 1962-07-13 | 1969-10-23 | Detrick M H Co | Basic refractory bricks molded together with an inlay and process for their manufacture |
| US4389189A (en) * | 1980-07-29 | 1983-06-21 | M. H. Detrick Co., Ltd. | Refractory components for furnaces |
| WO2007042056A1 (en) * | 2005-10-06 | 2007-04-19 | Refratechnik Holding Gmbh | Cassette chamber in a refractory furnace and shaped brick for the same and method for production of said shaped brick |
| CN201306926Y (en) * | 2008-12-12 | 2009-09-09 | 北京创导工业陶瓷有限公司 | Hollow periphery brick for kiln car pedestal |
| CN202687971U (en) * | 2012-05-31 | 2013-01-23 | 郑州东方均质材料有限责任公司 | Fire-resistant hollow brick |
| CN202938645U (en) * | 2012-10-19 | 2013-05-15 | 徐敏 | Hollow composite refractory brick |
| CN103422582A (en) * | 2013-07-17 | 2013-12-04 | 戴长虹 | Ceramic composite vacuum insulation plate and preparation method thereof |
| CN203928735U (en) * | 2014-06-27 | 2014-11-05 | 佛山市承安铜业有限公司 | Vacuum heat-preserving brick structure and vacuum insulation and line frequency furnace |
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| CN104034166B (en) | 2017-12-05 |
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Denomination of invention: Vacuum heat-insulating brick structure, vacuum heat-insulating device and power frequency sensing electric furnace Effective date of registration: 20200220 Granted publication date: 20171205 Pledgee: Shunde Guangdong rural commercial bank Nanhai Branch of Limited by Share Ltd Pledgor: Cheon Western (China) Copper Ltd. Registration number: Y2020440000025 |