CN202420188U - Furnace shell of electric furnace - Google Patents
Furnace shell of electric furnace Download PDFInfo
- Publication number
- CN202420188U CN202420188U CN2012200131343U CN201220013134U CN202420188U CN 202420188 U CN202420188 U CN 202420188U CN 2012200131343 U CN2012200131343 U CN 2012200131343U CN 201220013134 U CN201220013134 U CN 201220013134U CN 202420188 U CN202420188 U CN 202420188U
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- furnace
- shell
- flange
- furnace shell
- electric furnace
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Abstract
The utility model provides a furnace shell of an electric furnace, which comprises an upper shell body (1) and a lower shell body (5), wherein the upper shell body is provided with a lower opening and an upper flange (2) arranged on the edge of the lower opening; the lower shell body is provided with an upper opening and a lower flange (4) arranged on the edge of the upper opening and corresponding to the upper flange; and the upper flange is fixed with the lower flange in an insulated manner. The furnace shell of the electric furnace, which adopts the structure, has the advantages that the influence of an eddy current brought by an electrode system can be reduced, the temperature of the furnace shell can be lowered, the cooling air volume of a fan can be lowered, comprehensive power factors of the electric furnace can be improved, and the material consumption needed for replacing the furnace shell can be further reduced.
Description
Technical field
The utility model relates to a kind of metallurgical electric furnace furnace body structure, is specifically related to a kind of furnace shell that is used for metallurgical electric furnace.
Background technology
In recent years, along with the development and the progress of science and technology of steel and iron industry, world's ferroalloy industry production is reclaimed and technical elements such as comprehensive utilization of resources all develops by leaps and bounds and breaks through in kind, smelting process, technical equipment, environmental protection, energy.Iron alloy electric furnace is also developing towards the direction that maximizes and sealed furnace is smelted.
Large-scale electric reduction furnace through electric furnace smelting silicon is, manganese is, chromium is ferroalloy is all selected round furnace shell for use.Circular furnace shell radiator structure is reasonable, and cloth is even, and circular furnace shell often adopts rotating furnace body simultaneously, is beneficial to connect the crucible district, improves capacity usage ratio, makes to tap a blast furnace smooth and easyly, reduces the influence of relative partially furnace lining.
According to investigation, traditional electric furnace is when matallurgical products, and mostly the furnace shell structure form of selecting for use is monolithic construction, promptly adopts a monoblock steel plate to make the sidewall of furnace shell, on sidewall, is welded with gusset.Be welded with tapping hole on the furnace shell sidewall, the number of tapping hole can be provided with a plurality of as required.
The version of traditional monoblock type electric furnace furnace shell device is as shown in Figure 1, and the structural strength of this furnace shell is bigger, can bear the material thermal strain that electric furnace high temperature brings.
In recent years, along with the improvement of technology, (referring to application number is 200620090379.0 a kind of furnace shell to have occurred; Publication number is CN200941003, and name is called the patent of novel ore-smelting electric furnace furnace shell), this furnace shell is made up of the stove lobe more than four; Between its adjacent two stove lobes blue linkage section is managed in top, the bottom of suture, corresponding with the opposite joint of two stove lobes, be lined with interior lining panel in two stove lobe inboards; Interior lining panel one face down bonding is connected on the stove lobe medial surface, and the interior lining panel opposite side is close on the medial surface of another stove lobe with being free state, several spirogyrate plates of dress on the furnace shell periphery between the two flange linkage sections; One face down bonding of spirogyrate plate is connected on the stove lobe; The opposite side of spirogyrate plate is welded on another stove lobe, and the furnace shell bottom after the assembling is sat and put on the backing plate of drop-bottom, and the drop-bottom circumferential edges connects the outer ring; This reasonable in design, novel structure, uniqueness can prevent the shell deformation cracking again.But, no matter be integral type or the stove lobe knockdown, along with iron alloy electric furnace develops towards the direction that maximizes, these two kinds of furnace shells all appear following shortcoming gradually in the utilization process:
1, the generation eddy current is big.Because the distance of furnace shell and electrode part is less relatively; Three electrodes use triangular arrangement of electric furnace, along with the increase of furnace volume, the electric current of electrode is also increasing; Alternating current produces magnetic field and on furnace shell, produces eddy current; Casing temperature is increased, be unfavorable for improving the power factor of electric furnace simultaneously, and then cause capacity usage ratio low.
Consumption of materials is big when 2, changing furnace shell.Particularly the monoblock type furnace shell will be changed whole furnace shell when changing, and causes high material consumption.
Therefore, how developing a kind of novel furnace shell that overcomes above-mentioned shortcoming, is the problem that those skilled in the art study always.
Summary of the invention
The purpose of the utility model is to provide a kind of novel electric furnace furnace shell that can overcome existing electric furnace furnace shell defective.
To achieve these goals, the structure of the described electric furnace furnace shell of the utility model includes: upper shell and lower house.Said upper shell has under shed and the upper flange that is arranged at the under shed edge; Said lower house have upper shed and be arranged at the upper shed edge and with the corresponding lower flange of upper flange, insulation is fixing between the last lower flange.
Further, connect through antimagnetic stainless steel bolt between said upper flange and the lower flange.
Further, also be provided with the insulation board of one deck between said upper flange and the lower flange in order to prevent that whole furnace shell is charged.
Further, be provided with insulating sleeve between said bolt and the flange.
Further, the upper shell of said furnace shell and lower house are provided with and stop the antimagnetic corrosion resistant plate that eddy current produces.
Adopt the electric furnace furnace shell of said structure not only can reduce the vortes interference that electrode system brings, reduced casing temperature, reduced the blower fan cooling air quantity, improved the comprehensive power factor of electric furnace, and can also reduce the consumption of materials of changing furnace shell.
Description of drawings
Fig. 1 is traditional monoblock type electric furnace furnace shell structure sketch map;
Fig. 2 is the structural representation of the utility model electric furnace furnace shell;
Fig. 3 is the partial enlarged drawing of the flange coupling part of electric furnace furnace shell shown in Figure 2.
The specific embodiment
In order better to understand the purpose of the utility model, characteristic and function are described in detail the structure and the function of the utility model one preferred embodiment below in conjunction with accompanying drawing.
Fig. 2 is the structural representation of the utility model electric furnace furnace shell, and Fig. 3 is the partial enlarged drawing of the flange coupling part of electric furnace furnace shell shown in Figure 2.Can know that by Fig. 2 the electric furnace furnace shell in the preferred embodiment comprises upper shell 1 and lower house 5, said upper shell has under shed and under shed edge, and said lower house 5 has and corresponding upper shed of the under shed of upper shell 1 and upper shed edge; And the under shed edge arranged outside of said upper shell 1 has upper flange 2, and the upper shed edge arranged outside of said lower house has the lower flange 4 corresponding with upper flange 2; Can find out that by Fig. 2 and Fig. 3 also be provided with one deck insulation board 3 between said upper flange 2 and the lower flange 4, this insulation board 3 has resistance and high temperature resistance property, and charged in order to prevent whole furnace shell.
Further, can find out that in this preferred embodiment, said upper flange adopts antimagnetic stainless steel bolt 8 to be connected with lower flange, and is provided with insulating sleeve 9 between bolt 8 and the flange by Fig. 3.
Further, can find out that the upper shell 1 and the lower house 5 of said furnace shell all can be provided with antimagnetic corrosion resistant plate, to stop the generation of eddy current by Fig. 2; In this preferred embodiment, adopted three antimagnetic corrosion resistant plates 6 in the middle of the furnace shell of said upper shell 1, and adopted an antimagnetic corrosion resistant plate 7 in the middle of the furnace shell of said lower house 5.
Further, lower house 5 is provided with tapping hole 10.
The above only is a kind of preferred implementation of the utility model; Should be understood that; For those skilled in the relevant art, under the prerequisite that does not break away from the utility model principle, trickle modification and the improvement made; Also should be regarded as belonging to the protection domain of the utility model, for example also can replace antimagnetic corrosion resistant plate on the electric furnace furnace shell through being provided with other mechanism that prevents that eddy current from producing.
Claims (6)
1. an electric furnace furnace shell is characterized in that, it includes upper shell (1) and lower house (5), and said upper shell (1) has under shed and the upper flange (2) that is arranged at the under shed edge; Said lower house (5) have upper shed and be arranged at the upper shed edge and with the corresponding lower flange of upper flange (4), insulation is fixing between the last lower flange.
2. electric furnace furnace shell as claimed in claim 1 is characterized in that, connects through antimagnetic stainless steel bolt (8) between said upper flange (2) and the lower flange (4).
3. electric furnace furnace shell as claimed in claim 1 is characterized in that, also is provided with one deck between said upper flange (2) and the lower flange (4) in order to prevent the charged insulation board of whole furnace shell (3).
4. like claim 2 or 3 described electric furnace furnace shells, it is characterized in that, be provided with insulating sleeve (9) between said bolt (8) and the flange.
5. electric furnace furnace shell as claimed in claim 1 is characterized in that, upper shell of said furnace shell (1) and lower house (5) are provided with stops the antimagnetic corrosion resistant plate that eddy current produces.
6. electric furnace furnace shell as claimed in claim 5 is characterized in that, the upper shell of said furnace shell (1) is provided with three antimagnetic corrosion resistant plates at least; The lower house of said furnace shell (5) is provided with an antimagnetic corrosion resistant plate at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200131343U CN202420188U (en) | 2012-01-11 | 2012-01-11 | Furnace shell of electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200131343U CN202420188U (en) | 2012-01-11 | 2012-01-11 | Furnace shell of electric furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202420188U true CN202420188U (en) | 2012-09-05 |
Family
ID=46744945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200131343U Expired - Lifetime CN202420188U (en) | 2012-01-11 | 2012-01-11 | Furnace shell of electric furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202420188U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109883203A (en) * | 2019-03-28 | 2019-06-14 | 江苏德龙镍业有限公司 | Mineral hot furnace water cooled cover |
-
2012
- 2012-01-11 CN CN2012200131343U patent/CN202420188U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109883203A (en) * | 2019-03-28 | 2019-06-14 | 江苏德龙镍业有限公司 | Mineral hot furnace water cooled cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |