CN203307357U - Cooling structure for blast-furnace bottom - Google Patents
Cooling structure for blast-furnace bottom Download PDFInfo
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- CN203307357U CN203307357U CN2013202960891U CN201320296089U CN203307357U CN 203307357 U CN203307357 U CN 203307357U CN 2013202960891 U CN2013202960891 U CN 2013202960891U CN 201320296089 U CN201320296089 U CN 201320296089U CN 203307357 U CN203307357 U CN 203307357U
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- carbon brick
- brick layer
- layer
- high heat
- blast
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Abstract
The utility model discloses a cooling structure for a blast-furnace bottom. A carbon ramming mass is paved at the bottommost layer at the furnace bottom, and the carbon ramming mass is sequentially provided with at least first high heat conductive carbon brick layer from bottom to top; a half-graphite carbon brick layer or a micropore carbon brick layer is paved on the first high heat conductive carbon brick layer; second high heat conductive carbon brick layers are paved at both ends of the half-graphite carbon brick layer or the micropore carbon brick layer. According to the cooling structure, the work condition and erosion mechanism of all parts of the blast-furnace are adequately considered, the high heat conductive carbon bricks, the half-graphite carbon brick layer and the micropore carbon brick layer are used in different work areas of the blast-furnace according to the performance indexes of the high heat conductive carbon bricks, the half-graphite carbon brick layer and the micropore carbon brick layer, so that the axial and radial cooling strengths at the blast-furnace bottom are enhanced, and the freezing temperature 1150 DEG C isotherm of molten iron at the furnace bottom is controlled in small areas of 'ladle heel layers' or thermal layers outside thermal faces of the carbon bricks of the cylinder of the whole furnace bottom to form a protective 'slag iron shell' in certain thickness so as to protect the furnace bottom liner. Therefore, the blast-furnace is energy-saving and efficient, and the cooling structure is beneficial for long service life of the blast-furnace, and meanwhile, construction investment of the blast-furnace is saved.
Description
Technical field
The utility model relates to a kind of blast furnace cooling structure, particularly a kind of cooling structure of Blast Furnace Bottom brick fuel mix and match.
Background technology
Blast furnace longevity is a systematic engineering of business, and the design of it and the type of furnace, cooling infrastructure configuration and heat-eliminating medium, the anti-material amount of furnace lining, furnace construction engineering etc. are closely related, and wherein, temperature is the deciding factor that affects blast furnace longevity.Because: 1. the mechanical property of all brickings and cooling stave material all raises with temperature and sharply worsens; 2. any chemistry and physical erosion speed are aggravated with the rising of temperature; 3. the thermal stresses of bricking and cooling stave raises and increases with temperature; The steadiness of the protectiveness " skull " 4. formed in furnace lining and formation speed are along with the temperature of cooling stave raises to the provide protection decline of furnace lining.Therefore, the furnace lining hot-face temperature being controlled to low-temperature condition is the basic demand that reduces the damaged speed of above-mentioned erosion and increase the body of heater corrosion resistance.
The utility model content
For the deficiencies in the prior art, the utility model provides a kind of cooling structure of Blast Furnace Bottom, this structure adopts different carbonaceous material mix and match to use, thereby guarantees the efficient energy-saving of blast furnace, obviously extends the life-span of blast furnace and has saved the blast furnace construction fund for the user.
The technical solution adopted in the utility model is: a kind of cooling structure of Blast Furnace Bottom, the furnace bottom orlop is equipped with carbon ramming mass, on described carbon ramming mass, be provided with successively from the bottom to top the high heat conductivity carbon brick layer of one deck first at least, on the first high heat conductivity carbon brick layer, be equipped with semi-graphite carbon brick layer or microporous carbon brick layer, the second high heat conductivity carbon brick layer is laid at schungite brick fuel layer or microporous carbon brick layer both ends.
The described first high heat conductivity carbon brick layer is two-layer, is equipped with three layers of microporous carbon brick layer on the first high heat conductivity carbon brick layer.
The described first high heat conductivity carbon brick layer is one deck, on the first high heat conductivity carbon brick layer, is equipped with two-layer schungite brick fuel layer, on schungite brick fuel layer, is equipped with one deck microporous carbon brick layer.
The described first high heat conductivity carbon brick layer is one deck, on the first high heat conductivity carbon brick layer, is equipped with three layers of schungite brick fuel layer.
The utility model has taken into full account working conditions and the erosion mechanism at each position of blast furnace, high heat conductivity carbon brick and schungite brick fuel, microporous carbon brick is used in the different work area of blast furnace according to performance index separately, accomplish reasonably combined, make Blast Furnace Bottom axially and radially cooling intensity strengthen, effectively reduce the bearth brick lining temperature, 1150 ℃ of thermoisopleths of furnace bottom molten steel solidification temperature are controlled to whole furnace bottom cupola well brick fuel hot side outer " ladle heel layer " or the very zonule in hot side, namely form one and have certain thickness protectiveness " slag iron-clad ", by " slag iron-clad ", play the effect of protection bottom lining, make energy Conservation of Blast Furnace efficient, be beneficial to blast furnace longevity and saved simultaneously the construction investment of blast furnace.
The accompanying drawing explanation
Fig. 1 is the schematic diagram of embodiment 1.
Fig. 2 is that the A-A of Fig. 1 is to view.
Fig. 3 is that the B-B of Fig. 2 is to view.
Fig. 4 is the schematic diagram of embodiment 2.
Fig. 5 is the schematic diagram of embodiment 3.
Embodiment
Embodiment mono-
As shown in Figure 1, a kind of cooling structure of Blast Furnace Bottom, at furnace bottom 1 orlop, be equipped with carbon ramming mass 2, on carbon ramming mass 2, be equipped with the first high heat conductivity carbon brick layer 3, on the first high heat conductivity carbon brick layer 3, be equipped with three layers of microporous carbon brick layer 5, three layers of microporous carbon brick layer 5 two ends all are not paved with layer, and the second high heat conductivity carbon brick layer 8 is only laid along the radially adjacent cupola well cooling stave 7 of circumference in three layers of microporous carbon brick layer 5 two ends.
In the present embodiment, the first high heat conductivity carbon brick layer 3, microporous carbon brick layer 5 and the second high heat conductivity carbon brick layer 8 can be laid the number of plies, one deck, two-layer or multilayer as required.
Embodiment bis-
As shown in Figure 4, a kind of cooling structure of Blast Furnace Bottom, at furnace bottom 1 orlop, be equipped with carbon ramming mass 2, on carbon ramming mass 2, be equipped with the first high heat conductivity carbon brick layer 3, on the first high heat conductivity carbon brick layer 3, be equipped with two-layer schungite brick fuel layer 4, on schungite brick fuel layer 4, be equipped with one deck microporous carbon brick 9, two-layer schungite brick fuel layer 4 all is not paved with layer, only along the radially adjacent cupola well cooling stave 7 of circumference, lays the second high heat conductivity carbon brick layer 8.
In the present embodiment, the first high heat conductivity carbon brick layer 3, schungite brick fuel layer 4, microporous carbon brick layer 9 and the second high heat conductivity carbon brick layer 8 can be laid the number of plies, one deck, two-layer or multilayer as required.
Embodiment tri-
As shown in Figure 5, a kind of cooling structure of Blast Furnace Bottom, at furnace bottom 1 orlop, be equipped with carbon ramming mass 2, on carbon ramming mass 2, be equipped with the first high heat conductivity carbon brick layer 3, on the first high heat conductivity carbon brick layer 3, be equipped with three layers of schungite brick fuel 4, wherein, two-layer schungite brick fuel layer 4 two ends that are close to the first high heat conductivity carbon brick layer 3 all are not paved with layer, only along the radially adjacent cupola well cooling stave 7 of circumference, lay the second high heat conductivity carbon brick 8.
In the present embodiment, the first high heat conductivity carbon brick layer 3, the high heat conductivity carbon brick layer 8 of schungite brick fuel layer 4 and second can be laid the number of plies, one deck, two-layer or multilayer as required.
As preferred version of the present utility model, be equipped with ceramic cup layer 6 at the position of furnace bottom cupola well contact molten iron.
Claims (4)
1. the cooling structure of a Blast Furnace Bottom, furnace bottom (1) orlop is equipped with carbon ramming mass (2), it is characterized in that: on described carbon ramming mass (2), be provided with successively from the bottom to top the high heat conductivity carbon brick layer of one deck first (3) at least, on the first high heat conductivity carbon brick layer (3), be equipped with semi-graphite carbon brick layer (4) or microporous carbon brick layer (5), the second high heat conductivity carbon brick layer (8) is laid at schungite brick fuel layer (4) or microporous carbon brick layer (5) both ends.
2. the cooling structure of Blast Furnace Bottom according to claim 1 is characterized in that: the described first high heat conductivity carbon brick layer (3), for two-layer, is equipped with three layers of microporous carbon brick layer (5) on the first high heat conductivity carbon brick layer (3).
3. the cooling structure of Blast Furnace Bottom according to claim 1, it is characterized in that: the described first high heat conductivity carbon brick layer (3) is one deck, on the first high heat conductivity carbon brick layer (3), be equipped with two-layer schungite brick fuel layer (4), on schungite brick fuel layer (4), be equipped with one deck microporous carbon brick layer (9).
4. the cooling structure of Blast Furnace Bottom according to claim 1, it is characterized in that: the described first high heat conductivity carbon brick layer (3) is one deck, is equipped with three layers of schungite brick fuel layer (4) on the first high heat conductivity carbon brick layer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202960891U CN203307357U (en) | 2013-05-28 | 2013-05-28 | Cooling structure for blast-furnace bottom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202960891U CN203307357U (en) | 2013-05-28 | 2013-05-28 | Cooling structure for blast-furnace bottom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203307357U true CN203307357U (en) | 2013-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202960891U Expired - Fee Related CN203307357U (en) | 2013-05-28 | 2013-05-28 | Cooling structure for blast-furnace bottom |
Country Status (1)
| Country | Link |
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| CN (1) | CN203307357U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115386669A (en) * | 2022-08-19 | 2022-11-25 | 山西太钢不锈钢股份有限公司 | Method for establishing triple-hearth structure of blast furnace |
-
2013
- 2013-05-28 CN CN2013202960891U patent/CN203307357U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115386669A (en) * | 2022-08-19 | 2022-11-25 | 山西太钢不锈钢股份有限公司 | Method for establishing triple-hearth structure of blast furnace |
| CN115386669B (en) * | 2022-08-19 | 2024-02-02 | 山西太钢不锈钢股份有限公司 | Method for establishing triple hearth structure of blast furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20210528 |