CN203307357U - Cooling structure for blast-furnace bottom - Google Patents
Cooling structure for blast-furnace bottom Download PDFInfo
- Publication number
- 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
- Authority
- CN
- China
- Prior art keywords
- carbon brick
- brick layer
- layer
- high heat
- blast
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 94
- 239000011449 brick Substances 0.000 claims abstract description 85
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 78
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 6
- 239000010439 graphite Substances 0.000 claims abstract description 6
- 239000000446 fuel Substances 0.000 claims description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 4
- 230000003628 erosive effect Effects 0.000 abstract description 4
- 229910052742 iron Inorganic materials 0.000 abstract description 3
- 239000002893 slag Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000007710 freezing Methods 0.000 abstract 1
- 230000008014 freezing Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 210000003625 skull Anatomy 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Images
Landscapes
- Blast Furnaces (AREA)
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 |
Family
ID=49613579
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 |
|---|---|
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207581842U (en) | A kind of bottom hearth of blast furnace structure | |
| CN206680517U (en) | A kind of combined smelting furnace cooling wall of steel copper steel | |
| CN103512349A (en) | Rotary kiln applied to ferronickel reduction production technology and construction method thereof | |
| CN201485477U (en) | Liner structure for crucible and hearth of blast furnace | |
| CN201265017Y (en) | Blast furnace hearth furnace bottom lining structure | |
| CN202126183U (en) | Arc furnace lining with composite structure | |
| CN203307357U (en) | Cooling structure for blast-furnace bottom | |
| CN203700396U (en) | Chromium-iron alloy smelting blast furnace crucible | |
| CN201770713U (en) | Combined lining structure of furnace bottom and hearth of blast furnace | |
| CN205576184U (en) | Good blast furnace crucibe of heat conduction | |
| CN201779366U (en) | Hot air pipeline for carbon black production equipment by oil furnace method | |
| CN109055639A (en) | High thermal conductivity Long-life blast furnace hearth and bricking building method | |
| CN202329164U (en) | Lining structure of reducibility ore-smelting electric furnace | |
| CN203704662U (en) | Ferrochrome smelting furnace lining | |
| CN104501586A (en) | Furnace bottom structure capable of realizing reduction of deep bed for rotary hearth furnace | |
| CN201762351U (en) | Blast furnace for smelting sefstromite | |
| CN205209250U (en) | Resistant firebrick of compound abnormal shape | |
| CN211451852U (en) | Ferronickel electric furnace with magnesium-carbon composite furnace lining | |
| CN204438757U (en) | A kind of rotary hearth furnace hearth structure realizing deep bed sintering reduction | |
| CN203728861U (en) | Brick distribution structure with thermal conductivity gradient of hearth refractory | |
| CN103951449B (en) | A kind of curable blast furnace hearth air gap compaction material | |
| CN201501888U (en) | Graphite block embedded for large-scale blast furnace cooling wall | |
| CN203928738U (en) | A kind of ferronickel electric furnace condensation composite lining structure | |
| CN104896940A (en) | Novel compound type furnace lining for electric induction furnace | |
| CN201165530Y (en) | Refractory bricks for composite metallurgy |
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 |