CN203928738U - A kind of ferronickel electric furnace condensation composite lining structure - Google Patents
A kind of ferronickel electric furnace condensation composite lining structure Download PDFInfo
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- CN203928738U CN203928738U CN201420345254.2U CN201420345254U CN203928738U CN 203928738 U CN203928738 U CN 203928738U CN 201420345254 U CN201420345254 U CN 201420345254U CN 203928738 U CN203928738 U CN 203928738U
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- furnace
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- lining structure
- magnesia
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Abstract
A kind of ferronickel electric furnace condensation composite lining structure, be particularly related to a kind of ferronickel electric furnace condensation composite lining structure, comprise furnace bottom, be arranged on the furnace wall on furnace bottom, it is characterized in that: furnace bottom is spread and forms layer by layer by aluminosilicate material layer, graphite brick, ultramicropore brick fuel, magnesia carbon brick, the protection of ceramic mould refractory material successively from top to bottom; Furnace wall from furnace shell to being interiorly followed successively by that graphite pastes watt, ultramicropore brick fuel, magnesia carbon brick, ceramic fire resistant brick layer paving form.The utility model has solved carbon line and has been easy to produce chemical reaction with the undersaturated liquid alloy of carbon containing, cause the problem of lining wear and the thermal conductivity of magnesian relatively low, conductivity of heat is poor, can not in time accumulation of heat in magnesia brick be conducted, make the magnesia brick critical-temperature in chemical reaction for a long time, easily produce and peel off, and slag easily permeates, finally cause furnace lining to damage, reduce the problem in service life.
Description
Technical field
The utility model relates to a kind of condensation composite lining structure, particularly a kind of ferronickel electric furnace condensation composite lining structure.
Background technology
The ferroalloy furnace lining of smelting ferronickel, has two kinds of structures at present: the one, and carbonaceous material furnace lining structure; The 2nd, magnesian furnace lining structure.Carbon line material structure is at present for ferromanganese and rich manganese slag mineral hot furnace, result of use is good, use on ferronickel electric furnace is also in attempting the exploratory stage, because ferronickel belongs to thanks to carbon operation aborning, the carbon containing of alloy is unsaturated, carbon line and undersaturated liquid alloy produce chemical reaction, are easy to cause lining wear; Magnesian furnace lining structure, because thermal conductivity and the carbonaceous material of magnesian are more relatively low, conductivity of heat is poor, can not in time accumulation of heat in magnesia brick be conducted, make the magnesia brick critical-temperature in chemical reaction for a long time, magnesian is very responsive to the variation of temperature simultaneously, improper use easily produces and peels off, and slag easily permeates, finally cause furnace lining to damage, reduce service life.
Utility model content
For solving the ferro-alloy furnace lining structure of smelting ferronickel, be that pure carbonaceous material furnace lining structure and magnesian furnace lining structure are fragile at the furnace lining of use procedure generation, the problem of corrosion, the utility model proposes a kind of condensation composite lining structure.
For achieving the above object, the utility model proposes following technical scheme: a kind of ferronickel electric furnace condensation composite lining structure, comprise furnace bottom, be arranged on the furnace wall on furnace bottom, furnace bottom is spread and forms layer by layer by aluminosilicate material layer, graphite brick, ultramicropore brick fuel, magnesia carbon brick, ceramic mould refractory material successively from top to bottom; Furnace wall from furnace shell to being interiorly followed successively by that graphite pastes watt, ultramicropore brick fuel, magnesia carbon brick, ceramic fire resistant brick layer paving form.
Described furnace bottom is provided with air-cooled, water-cooling cooling device.
Described furnace wall is outside equipped with the outer spray equipment of stove.
The beneficial effects of the utility model are: proposed a kind of condensation composite lining structure, having solved carbon line is easy to produce chemical reaction with undersaturated liquid alloy, cause the problem of lining wear and the thermal conductivity of magnesian relatively low, conductivity of heat is poor, can not in time accumulation of heat in magnesia brick be conducted, and makes the magnesia brick critical-temperature in chemical reaction for a long time, easily produce and peel off, and slag easily permeates, finally cause furnace lining to damage, reduce the problem in service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the partial enlarged drawing of Fig. 1.
The specific embodiment
As described in Figure 1, a kind of ferronickel electric furnace condensation composite lining structure, comprise furnace bottom, furnace wall, furnace bottom from top to bottom successively by the high-strength ramming bed of material 1, dense form high-alumina brick 2, graphite brick 3 for ferronickel stove, the high heat conduction ramming bed of material 4, ultramicropore brick fuel 5 for ferronickel stove, ferronickel with graphite paste watts 6, magnesia carbon brick 7,8 layers of paving of ceramic mould refractory brick form; Furnace wall from furnace shell to interior be followed successively by ferronickel with graphite paste watts 6, for ferronickel stove, ultramicropore brick fuel 5, magnesia carbon brick 7,8 layers of paving of ceramic mould refractory brick form.
The utility model adopts aluminosilicate property material compactness high-alumina brick 2 in the furnace bottom lower floor of ferronickel electric furnace; rise and support heat-blocking action; be used for protecting steel plate of furnace hearth; on aluminosilicate property material compactness high-alumina brick 2, build graphite block 3 for ferronickel stove by laying bricks or stones; use in the above ultra-microporous carbon block 5 for ferronickel stove; at ferronickel stove, build magnesia carbon brick 7 by laying bricks or stones above with ultra-microporous carbon block 5, the superiors are ceramic mould fire brick layer 8.Because furnace bottom has adopted graphite block 3 for ferronickel stove, the thermic load of furnace bottom can be conducted to surrounding equably, effectively reduced the serviceability temperature of bottom refractory, prevented chemical erosion and molten iron infiltration, to pipeline 9 ventilations of the high-strength ramming bed of material 1 furnace bottom or the mode of water flowing, furnace bottom has been forced cooling.Furnace wall adopt high heat conduction add erosion resistant compound Lining from furnace shell to interior be followed successively by ferronickel with graphite paste watts 6, magnesia carbon brick 7,8 layers of paving of ceramic mould refractory brick form, furnace wall arranges spray equipment 10 outward, utilize highly heat-conductive material that the temperature of slag iron is lowered rapidly, utilize again the anti-slag iron erosiveness that magnesium carbonaceous material is stronger, by forcing cooling way, make the hot-face temperature of magnesium carbon line all the time lower than the critical reaction temperature of refractory material, make it give full play of its high-temperature anti-corrosion ability.
Simple magnesian, heat conductivility is poor, its reaction temperature can not be reduced under critical reaction temperature, and improper use is easily peeled off, and slag easily permeates; Simple carbonaceous material is easy to nickel ores slag generation chemical reaction at lower temperature, cause lining wear, therefore bi-material is combined, can utilize the high-termal conductivity of carbonaceous material, the hot-face temperature of magnesium carbonaceous material is reduced to below the critical-temperature of chemical erosion reaction, can utilize again the good high temperature anti-slag iron of magnesium carbonaceous material erosiveness, the erosion of opposing slag iron.Use carbonaceous material and the resistance to slag of high heat conduction, the magnesium carbonaceous material of anti-thermal shock good stability, science by two materials configures, utilize the high-termal conductivity of carbonaceous material, heat can be passed rapidly, reduce temperature of furnace lining, utilize the erosive velocity of the high-temperature behavior reduction furnace lining that magnesium carbonaceous material is good, different according to using position, selecting compound Lining is exactly according to the material of different thermal conductivity factors, to be built into the furnace lining of composite construction, by formation temperature gradient, the hot-face temperature of condensation lining is reduced under the fusing point of slag iron, form the self-shield furnace lining of relatively stable thickness, the refractory material that furnace lining itself is built in protection by laying bricks or stones is not etched, reach the long-lived object of furnace lining.
Adopt compound Lining to give full play to two material premium properties, improved the integral high-temperature performance of furnace lining, the life-span of this structure is 3-5, and magnesia furnace lining only had about a year and a half, about carbon line 3 years, be 2-3 times of two kinds of lining durabilities, greatly extended lining durability.Due to the raising of lining durability, reduced and repaiied heat number, saved a large amount of maintenance costs, saved power consumption, burnt consumption, increased substantially production efficiency, comprehensive benefit is remarkable.
Claims (3)
1. a ferronickel electric furnace condensation composite lining structure, comprise furnace bottom, be arranged on the furnace wall on furnace bottom, it is characterized in that: furnace bottom is spread and forms layer by layer by aluminosilicate material layer, graphite brick, ultramicropore brick fuel, magnesia carbon brick, ceramic mould refractory material successively from top to bottom; Furnace wall from furnace shell to being interiorly followed successively by that graphite pastes watt, ultramicropore brick fuel, magnesia carbon brick, ceramic fire resistant brick layer paving form.
2. a kind of ferronickel electric furnace condensation composite lining structure as claimed in claim 1, is characterized in that: described furnace bottom is provided with air-cooled, water-cooling cooling device.
3. a kind of ferronickel electric furnace condensation composite lining structure as claimed in claim 1, is characterized in that: described furnace wall is outside equipped with the outer spray equipment of stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420345254.2U CN203928738U (en) | 2014-06-26 | 2014-06-26 | A kind of ferronickel electric furnace condensation composite lining structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420345254.2U CN203928738U (en) | 2014-06-26 | 2014-06-26 | A kind of ferronickel electric furnace condensation composite lining structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203928738U true CN203928738U (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420345254.2U Expired - Fee Related CN203928738U (en) | 2014-06-26 | 2014-06-26 | A kind of ferronickel electric furnace condensation composite lining structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN203928738U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110906740A (en) * | 2019-12-29 | 2020-03-24 | 鲁山县方圆工程技术有限公司 | Ferronickel electric furnace with magnesium-carbon composite furnace lining |
-
2014
- 2014-06-26 CN CN201420345254.2U patent/CN203928738U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110906740A (en) * | 2019-12-29 | 2020-03-24 | 鲁山县方圆工程技术有限公司 | Ferronickel electric furnace with magnesium-carbon composite furnace lining |
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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: 20141105 Termination date: 20200626 |