CN201501887U - Graphite brick embedded for large-scale blast furnace cooling panel - Google Patents
Graphite brick embedded for large-scale blast furnace cooling panel Download PDFInfo
- Publication number
- CN201501887U CN201501887U CN2009200926531U CN200920092653U CN201501887U CN 201501887 U CN201501887 U CN 201501887U CN 2009200926531 U CN2009200926531 U CN 2009200926531U CN 200920092653 U CN200920092653 U CN 200920092653U CN 201501887 U CN201501887 U CN 201501887U
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- graphite brick
- furnace
- furnace lining
- brick
- blast furnace
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Abstract
A graphite brick embedded for a large-scale blast furnace cooling panel adopts a sphenoid graphite brick with rectangular cross section and isosceles trapezoid shaped longitudinal section. The graphite brick is embedded between copper cooling panels, so that the heat of a furnace lining is rapidly transmitted to the cooling panels by virtue of the high thermal conductivity of the graphite brick, thereby reducing the temperature of the hot side of the furnace lining, improving the ability of the furnace lining to bear various erosions in the furnace, avoiding early erosion of the furnace lining, and prolonging the service life of the entire furnace lining.
Description
Technical field
The utility model relates to a kind of graphite brick, is specifically related to a kind of large blast furnace cooling plate and inlays and use graphite brick.
Background technology
Bosh, restoration of lower stack in blast-furnace smelting not only bear the erosive wear of furnace charge and coal gas stream, and are thermal load and chemical erosion and the most serious position of basic metal erosion.Therefore, be the damaged fastest position of monolithic lining.In order to prolong the work-ing life of blast furnace, many producers have carried out a large amount of research trials in eighties of last century, the measure that solves is the use properties that improves cooling stave, when the cooling apparatus state of the art improves, continually develop out the fire resistive material product of use better performances again, as high alumina brick, carbon based on silicon carbide brick, from the based on silicon carbide brick, nitrogen based on silicon carbide brick, match gallery based on silicon carbide brick etc., but the heat conductivility of these materials is not fine, can not form " slag crust " on its surface, generally after blow-on, be etched soon, cooling stave directly and fused furnace charge and dissolve the liquid slag iron that drips the back and contact causes cooling wall breakage.
The utility model content
The technical problems to be solved in the utility model be existing large blast furnace cooling stave directly and fused furnace charge and dissolve the liquid slag iron that drips the back and contact, the technical problem that causes cooling wall breakage, provide a kind of large blast furnace cooling plate to inlay and use graphite brick, between copper cooling plate, inlay graphite brick, utilize the high thermal conductivity of graphite brick, the furnace lining heat can be passed to cooling plate rapidly, reduce the furnace lining hot-face temperature, improve furnace lining and bear various erosive abilities in the stove, avoid furnace lining to corrode too early, thereby improve the work-ing life of whole furnace lining.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
Large blast furnace cooling plate of the present utility model is inlayed and is used graphite brick, and this graphite brick is the sphenoid graphite brick.
The cross section of described graphite brick is a rectangle.
Surpass 1000m for heat size
3Large blast furnace when newly-built or overhaul, at the high-temperature area of bosh to restoration of lower stack, select 4-5 section copper cooling plate for use, strengthen the refrigerative effect in order to realize the concentrated type copper cooling plate, and between copper cooling plate, inlay graphite brick, wherein, graphite brick is all adopted at bosh to shaft middle part, consider furnace charge and coal gas of high temperature wearing and tearing and souring more than the middle part, sting at the graphite brick front end and build that certain thickness thermal shock resistance is higher, the alkali resistant erosion performance is strong, heat conductivility is good, normal temperature and the higher refractory brick of hot strength furnace lining.
The utility model is being inlayed graphite brick between copper cooling plate, utilize the high thermal conductivity of graphite brick, the furnace lining heat can be passed to cooling plate rapidly, reduce the furnace lining hot-face temperature, improve furnace lining and bear various erosive abilities in the stove, avoid furnace lining to corrode too early, thereby improve the work-ing life of whole furnace lining.Copper cooling plate has high thermal conductivity, high cooling intensity, and bricking adopts graphite brick to form the furnace lining of high cooling intensity, strengthens cooling and can make the furnace lining internal surface form the slag wall rapidly.Even there is the slag wall to come off, the slag wall that very quick setting is new again, because cooling intensity is very high, the bricking temperature remains on lower level, can slow down the erosive velocity that causes because of cause for erosion.Slag, molten iron solidify at low temperatures, can not cause erosion to bricking, and visible to strengthen cooling be to prolong effective measures of blast furnace lining life-span.
Description of drawings
Fig. 1 is the vertical view of graphite brick of the present utility model;
Fig. 2 is the left view of graphite brick of the present utility model;
Fig. 3 is the local structure synoptic diagram of the furnace wall after inlaying graphite brick of the present utility model between the cooling plate;
Fig. 4 be among Fig. 3 A-A to diagrammatic cross-section.
1. graphite bricks among the figure, 2. cooling plate, 3. furnace shell, 4. water cooling tube.
Embodiment
As shown in Figure 1 and Figure 2, large blast furnace cooling plate of the present utility model is inlayed and is used graphite brick, and this graphite brick is the sphenoid graphite brick.
The cross section of described graphite brick is a rectangle.
As shown in Figure 3, Figure 4, surpass 1000m for heat size
3Large blast furnace when newly-built or overhaul, at the high-temperature area of bosh, select 4-5 section copper cooling plate 2 for use to restoration of lower stack, between copper cooling plate, inlay graphite brick.Wherein, graphite brick is all adopted at bosh to shaft middle part.
Claims (2)
1. a large blast furnace cooling plate is inlayed and used graphite brick, it is characterized in that: this graphite brick is the sphenoid graphite brick.
2. large blast furnace cooling plate according to claim 1 is inlayed and used graphite brick, it is characterized in that: the cross section of described graphite brick is a rectangle, and the vertical section is an isosceles trapezoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200926531U CN201501887U (en) | 2009-08-27 | 2009-08-27 | Graphite brick embedded for large-scale blast furnace cooling panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200926531U CN201501887U (en) | 2009-08-27 | 2009-08-27 | Graphite brick embedded for large-scale blast furnace cooling panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201501887U true CN201501887U (en) | 2010-06-09 |
Family
ID=42452824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200926531U Expired - Fee Related CN201501887U (en) | 2009-08-27 | 2009-08-27 | Graphite brick embedded for large-scale blast furnace cooling panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201501887U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102775045A (en) * | 2011-05-11 | 2012-11-14 | 信义电子玻璃（芜湖）有限公司 | Arch structure of glass melting furnace locking neck |
-
2009
- 2009-08-27 CN CN2009200926531U patent/CN201501887U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102775045A (en) * | 2011-05-11 | 2012-11-14 | 信义电子玻璃（芜湖）有限公司 | Arch structure of glass melting furnace locking neck |
| CN102775045B (en) * | 2011-05-11 | 2015-09-16 | 信义电子玻璃（芜湖）有限公司 | A kind of arch structure of glass melter card neck |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Pingdingshan City Lushan Yaxing Carbon Material Co., Ltd. Assignor: Li Jianwei|Li Wei|Xu Songshan|Song Liujian Contract record no.: 2010410000134 Denomination of utility model: Graphite brick embedded for large-scale blast furnace cooling panel Granted publication date: 20100609 License type: Exclusive License Record date: 20101008 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20150827 |
|
| EXPY | Termination of patent right or utility model |