CN205874478U - High heat conduction air brick - Google Patents
High heat conduction air brick Download PDFInfo
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- CN205874478U CN205874478U CN201620509440.4U CN201620509440U CN205874478U CN 205874478 U CN205874478 U CN 205874478U CN 201620509440 U CN201620509440 U CN 201620509440U CN 205874478 U CN205874478 U CN 205874478U
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- air brick
- heat conduction
- heat
- brick body
- box hat
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Abstract
The utility model relates to a fireproof material technology field, concretely relates to high heat conduction air brick and preparation method. An air brick body (1) that's a high heat conduction air brick is including box hat (4) and be located the box hat is proposed, high heat conduction air brick still is provided with the heat guiding element who is used for improving the outside heat transfer capacity of air brick, heat guiding element pours into a mould in the center of air brick body for heat conduction stick (2), heat conduction stick (2), or heat guiding element is heat conducting ring (3), and pour into a mould between air brick body (1) and box hat (4) heat conducting ring (3), or heat guiding element pours into a mould in the center of air brick body (1) for heat conduction stick (2) and heat conducting ring (3), heat conduction stick (2), and pour into a mould between air brick body (1) and box hat (4) heat conducting ring (3). The utility model discloses showing and improving the outside heat transfer capacity of air brick, reducing hot stress gradient, effectively improving the anti thermal shock fatigue of air brick, reducing the molten steel and taken place the bleed -out risk along the chamotte seam.
Description
Technical field
This utility model relates to technical field of refractory materials, is specifically related to a kind of high heat conduction air brick.
Background technology
In modern metallurgical production process, ladle argon-blown refine is topmost refined form in liquid steel refining, by ventilative
Brick is blown into high-purity argon gas in molten steel and reaches uniform molten steel composition and temperature, promotion inclusion floating and desulfurization, the refine of degassing
Purpose；Therefore, air brick is the function element of most critical in ladle argon-blown refine, and Argon success or failure are directly connected to liquid steel refining and are
No it is smoothed out.
At present, the air brick that ladle argon-blown refine is commonly used is the homogenizing overall structure of moulding by casting, air brick and box hat
Use that chamotte is bonding forms；In use, air brick stands 1000～1600 DEG C of recyclings, and air brick is internal to be existed relatively
Big temperature difference, Axial Thermal stress gradient is relatively big, and the brick that laterally breaks often occurs in work surface bottom 20～50mm, and causes Argon to be lost
Effect, refine failure, cause molten steel to melt down or ladle-to-ladle；It addition, there is bigger safety in the chamotte seam between air brick and box hat
Hidden danger, in use chamotte seam is shunk relatively big, and molten steel is easier to permeate downward there-from, and bleed-out accident occurs.
Utility model content
The purpose of this utility model is to propose a kind of high heat conduction air brick and preparation method so that it is can improve air brick outside
The ability of heat transfer, reduces air brick built-in thermal stress, prevents air brick generation transverse breakage and eliminates fire between air brick and box hat
Mud seam, reduces application risk.
This utility model adopts the following technical scheme that for completing above-mentioned purpose
A kind of high heat conduction air brick, described high heat conduction air brick includes box hat and is positioned at the air brick of box hat originally
Body；Described high heat conduction air brick is additionally provided with to improve the heat conducting element of the outside heat-transfer capability of air brick；
Described heat conducting element is heat conductive rod, and described heat conductive rod is cast in the center of air brick body, and at heat conductive rod
And arrange to increase the narrow annular channel gas-permeable channels of air brick gas supply capacity between air brick body；
Or, described heat conducting element is heat conduction ring, and described heat conduction ring is cast between air brick body and box hat, and
Arrange to increase the narrow annular channel gas-permeable channels of air brick gas supply capacity between air brick body and heat conduction ring；
Or, described heat conducting element is heat conductive rod and heat conduction ring, and described heat conductive rod is cast in the center of air brick body,
Described heat conduction ring is cast between air brick body and box hat, arranges to increase between described air brick body and heat conduction ring
Add the narrow annular channel gas-permeable channels of air brick gas supply capacity.
A diameter of the 20 of described heat conductive rod～50mm.
The thickness of described heat conduction ring is 20～60mm.
The one high heat conduction air brick that the utility model proposes, uses technique scheme, has the advantages that
1) this utility model improves the outside heat-transfer capability of air brick, reduces air brick thermal stress gradient, is effectively improved
The fracture of air brick anti-thermal shock；Eliminate chamotte seam simultaneously, reduce molten steel and the risk of bleed-out occurs along chamotte seam infiltration；
2) heat conductive rod is in use according to the significant difference of its coefficient of blackness Yu air brick body, by observing heat conduction
The change of rod sectional area, can determine whether that air brick can use height, improves air brick and uses warning, reduces application risk；
3) this utility model can arrange narrow annular channel gas-permeable channels between heat conductive rod, heat conduction ring and air brick body, increase
Add air brick gas supply capacity；
4) preparation technology is simple, is suitable for industrialization and produces.
In sum, this utility model improves the ability that air brick outwards conducts heat, and reduces air brick built-in thermal stress,
Prevent air brick generation transverse breakage and eliminate chamotte seam between air brick and box hat, reducing application risk.
Accompanying drawing explanation
Fig. 1 is the generalized section of embodiment 1 of the present utility model.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the generalized section of embodiment 2 of the present utility model.
The top view of Fig. 4 Fig. 3.
Fig. 5 is the generalized section of embodiment 3 of the present utility model.
The top view of Fig. 6 Fig. 5.
In figure: 1, air brick body, 2, heat conductive rod, 3, heat conduction ring, 4, box hat, 5, narrow annular channel gas-permeable channels.
Detailed description of the invention
In conjunction with the drawings and specific embodiments, this utility model is illustrated, but is not intended that limit of the present utility model
System.
Embodiment 1: as shown in Figure 1 and Figure 2, a kind of high heat conduction air brick, described high heat conduction air brick includes box hat 4
With the air brick body 1 being positioned at box hat；Described high heat conduction air brick is additionally provided with to improve air brick and outwards conducts heat energy
The heat conducting element of power；Described heat conducting element is heat conductive rod 2 and heat conduction ring 3, and described heat conductive rod 2 is cast in air brick body 1
Center, described heat conduction ring waters 3 notes between air brick body 1 and box hat 4, described air brick body 1 and heat conduction ring 3 it
Between arrange to increase the narrow annular channel gas-permeable channels 5 of air brick gas supply capacity；Time prepared by this embodiment, in air brick body
Between the endoporus of reserved Ф 30/ Ф 50, height is the most highly consistent with air brick body；Needs according to air brick flow can be at air brick
Body outer surface or interior internal surface of hole smear the organic coating of 0.1～0.2mm thickness, in this embodiment, described organic coating
For paraffin；Being fixed on die bottom plate by air brick body, external stability air brick box hat, by Al higher for thermal conductivity2O3-
SiC or Al2O3-C or Al2O3-SiC-C castable is cast at the endoporus that air brick body is reserved, heat conductive rod；It is cast in
In the middle of steel bushing and air brick body, heat conduction ring；Aforesaid operations is formed through heat treatment, the organic coating smeared volatilization after completing
The narrow annular channel gas-permeable channels of 0.1～0.2mm thickness, improves air brick gas supply capacity；Heat conductive rod or heat conduction ring are thermally treated
After reach preferably to use intensity, meet use requirement.
Embodiment 2: as shown in Figure 3, Figure 4, the agent structure of the present embodiment is with embodiment 1, and in this embodiment, described leads
Thermal element is heat conductive rod 2, and described heat conductive rod 2 is cast in the center of air brick body, and heat conductive rod and air brick body it
Between arrange to increase the narrow annular channel gas-permeable channels 5 of air brick gas supply capacity；The preparation method of this embodiment is: air brick is originally
The endoporus of reserved Ф 30/ Ф 50 in the middle of body, height is highly consistent with air brick body；Needs according to air brick flow can be thoroughly
In gas brick body, internal surface of hole smears the organic coating (i.e. paraffin) of 0.1～0.2mm thickness；The air brick of box hat will be enclosed with originally
Body is fixed on die bottom plate, by Al higher for thermal conductivity2O3-SiC or Al2O3-C or Al2O3-SiC-C castable is cast in
At the endoporus that gas brick body is reserved, heat conductive rod.Aforesaid operations is formed through heat treatment, the organic coating smeared volatilization after completing
The narrow annular channel gas-permeable channels of 0.1～0.2mm thickness, improves air brick gas supply capacity；Heat conductive rod after heat treatment reaches reason
The use intensity thought, meets and uses requirement.
Embodiment 3: as shown in Figure 5, Figure 6, the agent structure of this embodiment is with embodiment 1, and in this embodiment, described leads
Thermal element is heat conduction ring 3, and described heat conduction ring is cast between air brick body and box hat, and at air brick body and heat conduction ring
Between arrange to increase the narrow annular channel gas-permeable channels 5 of air brick gas supply capacity；The preparation method of this embodiment is: according to thoroughly
The needs of gas brick flow can smear the organic coating (i.e. paraffin) of 0.1～0.2mm thickness at air brick body outer surface.Will be ventilative
Brick body is fixed on die bottom plate, and external stability air brick box hat, by Al higher for thermal conductivity2O3-SiC or Al2O3-C or
Al2O3-SiC-C castable is cast in the middle of steel bushing and air brick body, heat conduction ring.Aforesaid operations complete after through heat treatment,
The organic coating volatilization smeared forms the narrow annular channel gas-permeable channels of 0.1～0.2mm thickness, improves air brick gas supply capacity；
Heat conduction ring after heat treatment reaches preferably to use intensity, meets and uses requirement.
Claims (3)
1. a high heat conduction air brick, described high heat conduction air brick includes box hat (4) and is positioned at the air brick of box hat originally
Body (1)；It is characterized in that: described high heat conduction air brick is additionally provided with to improve the heat conduction unit of the outside heat-transfer capability of air brick
Part；
Described heat conducting element is heat conductive rod (2), and described heat conductive rod (2) is cast in the center of air brick body, and in heat conduction
Arrange to increase the narrow annular channel gas-permeable channels (5) of air brick gas supply capacity between rod (2) and air brick body (1)；
Or, described heat conducting element is heat conduction ring (3), and described heat conduction ring (3) is cast in air brick body (1) and box hat (4)
Between, and the narrow annular channel arranging to increase air brick gas supply capacity between air brick body (1) and heat conduction ring (3) is ventilative
Passage (5)；
Or, described heat conducting element is heat conductive rod (2) and heat conduction ring (3), and described heat conductive rod (2) is cast in air brick body
(1) center, described heat conduction ring (3) is cast between air brick body (1) and box hat (4), described air brick body (1)
And arrange to increase the narrow annular channel gas-permeable channels (5) of air brick gas supply capacity between heat conduction ring (3).
A kind of high heat conduction air brick the most as claimed in claim 1, it is characterised in that: described heat conductive rod (2) a diameter of 20～
50mm。
A kind of high heat conduction air brick the most as claimed in claim 1, it is characterised in that: the thickness of described heat conduction ring (3) be 20～
60mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620509440.4U CN205874478U (en) | 2016-05-31 | 2016-05-31 | High heat conduction air brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620509440.4U CN205874478U (en) | 2016-05-31 | 2016-05-31 | High heat conduction air brick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205874478U true CN205874478U (en) | 2017-01-11 |
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ID=57688948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620509440.4U Active CN205874478U (en) | 2016-05-31 | 2016-05-31 | High heat conduction air brick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205874478U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105803158A (en) * | 2016-05-31 | 2016-07-27 | 中钢集团洛阳耐火材料研究院有限公司 | High-thermal-conductivity air brick and preparing method |
| CN108193022A (en) * | 2018-03-19 | 2018-06-22 | 洛阳轩石高温材料有限公司 | Argon is to extend the method for bottom blowing monolithic devices air brick comprehensive life successively |
-
2016
- 2016-05-31 CN CN201620509440.4U patent/CN205874478U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105803158A (en) * | 2016-05-31 | 2016-07-27 | 中钢集团洛阳耐火材料研究院有限公司 | High-thermal-conductivity air brick and preparing method |
| CN108193022A (en) * | 2018-03-19 | 2018-06-22 | 洛阳轩石高温材料有限公司 | Argon is to extend the method for bottom blowing monolithic devices air brick comprehensive life successively |
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