CN204188006U - A kind of electrode tube protective cover - Google Patents
A kind of electrode tube protective cover Download PDFInfo
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- CN204188006U CN204188006U CN201420523976.2U CN201420523976U CN204188006U CN 204188006 U CN204188006 U CN 204188006U CN 201420523976 U CN201420523976 U CN 201420523976U CN 204188006 U CN204188006 U CN 204188006U
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- electrode tube
- protective cover
- electrode
- tube
- gap
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Abstract
The utility model discloses a kind of electrode tube protective cover, smelting furnace stove lid mounted device has electrode tube, it is characterized in that: described electrode tube excircle device has tubular protective cover, this protective cover is fixed on bell, the electrode lower end of electrode tube and protection are covered with certain distance, gap is had between the inner circle of protective cover and the cylindrical of electrode tube, the distance in this gap is 20 ~ 60 millimeters, this gap forms an air channel, to produce negative pressure in stove while dedusting fan extracts hot blast out, extraneous cold wind enters in stove by this air channel, electrode tube and protective cover are played to the effect of a cooling, also air cooled effect is just achieved, a protective action well can be played to electrode tube, the heat insulation protective action of the protective cover of zirconium material well protects electrode tube, prevent from electrode tube from cruelly leaking to be oxidized in high temperature air, block is fallen in be full of cracks, reduce the loss of electrode tube material, reduce and change electrode tube frequency, save material resources, financial resources, ensure that output.
Description
Technical field
The utility model patent relates to a kind of smelting furnace annex, the electrode tube protective cover on especially a kind of large-scale smelting furnace.
Background technology
At present, along with industrial expansion, the demand in market, the application of smelting furnace is more and more extensive.But the smelting furnace of traditional old factory can not meet the needs in market, so need the quantity or the volume that increase smelting furnace, for the smelting furnace of larger volume, along with the increase of its volume, the height of bell also increases thereupon, and then the length of electrode insertion furnace chamber also significantly increases, large-area electrode is caused to be exposed in high temperature air, electrode can produce oxidative phenomena, particularly in stove electrode surface temperature with arc radiation drastic change, produce be full of cracks and fall block phenomenon, electrode diameter reduces obvious, and along with electrode diameter reduces, the area contacted with liquation and size of current are all reducing, electric thermal power reduces, heating cycle increases, and during electrode diameter reduction, its relative resistance will increase, electrode temperature raises further, the contact area of electrode and liquation reduces, for reaching identical electric current, the length of relative insertion liquation just needs to strengthen, these factors all can aggravate the loss of electrode, need high-frequency to change electrode tube, and replacing electrode tube needs to expend very large material resources and financial resources, and affect output.
Utility model content
For the problems of the prior art; the purpose of this utility model to provide a kind of electrode tube protective cover, this protective cover of device on the electrode tube in large-scale smelting furnace, effectively can prevent anodizing, chap block; extend the service life of electrode, protect electrode.
In order to achieve the above object, the technical solution of the utility model is:
A kind of electrode tube protective cover, wherein, smelting furnace stove lid mounted device has electrode tube, it is characterized in that: described electrode tube excircle device has tubular protective cover, be oxidized for preventing electrode tube, block is fallen in be full of cracks, this protective cover is fixed on bell, the electrode lower end of electrode tube and protection are covered with certain distance, gap is had between the inner circle of protective cover and the cylindrical of electrode tube, the distance in this gap is 20 ~ 60 millimeters, preferred distance is 30 millimeters, this gap forms an air channel, to produce negative pressure in stove while dedusting fan extracts hot blast out, extraneous cold wind enters in stove by this air channel, electrode tube and protective cover are played to the effect of a cooling, also air cooled effect is just achieved, a protective action well can be played to electrode tube.
Further, the tubulose that the protective cover of described electrode tube is as a whole also can be welded as a tubulose by solder side, every effect that can reach this protection by the first semi-circular tube and the second semi-circular tube.
Further, the material of protective cover is zirconium material, and the high temperature resistant degree of its zirconium material reaches 2000 more to be spent, and can form the overcoat that has fine effect of heat insulation, stop that furnace high-temperature forms heat radiation to electrode tube.
Further, the electrode lower end place near electrode tube on protective cover is pan head shape, ensure that effective discharge process of electrode tube.
Further, the thickness of pipe of described protective cover is 20 ~ 60 millimeters, is preferably 30 millimeters.
Compared with prior art; the performance of the electrode tubulose protective cover that the utility model provides is protruded; by the air channel that the gap between electrode tube and protective cover is formed, pass into cold air to cooling of electrode, again by the heat insulation protective action of the protective cover of zirconium material; well protect electrode tube; prevent from electrode tube from cruelly leaking being oxidized in high temperature air, chap block, reduces the loss of electrode tube material, reduce and change electrode tube frequency; save material resources, financial resources, ensure that output.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Accompanying drawing 1 is protective cover and electrode tube and bell fit structure schematic diagram in this utility model;
Accompanying drawing 2 is the structural representation of tubular protective cover;
Accompanying drawing 3 is for having the structural representation of the protective cover of conehead structure;
Accompanying drawing 4 is the structural representation of the protective cover welded together by two semi-circular tubes.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further described.
Embodiment one:
As Fig. 1,2, shown in 3 and 4, a kind of electrode tube protective cover, wherein, on smelting furnace bell 1, device has electrode tube 2, and electrode tube 2 excircle device has tubular protective cover 3, and the thickness of pipe of protective cover 3 is 20 ~ 60 millimeters, is preferably 30 millimeters; This protective cover 3 is fixed on bell 1, and electrode lower end and the protective cover 3 of electrode tube 2 have certain distance, have gap 5 between the inner circle of protective cover 3 and the cylindrical of electrode tube 2, and the distance in this gap 5 is 20 ~ 60 millimeters, is preferably 30 millimeters.The tubulose that the protective cover 3 of this electrode tube is as a whole also can be welded as a tubulose by the first semi-circular tube 302 and the second semi-circular tube 303 by solder side 4; The material of protective cover 3 is zirconium material, can play good heat insulation protective action; Electrode lower end place near electrode tube 2 on protective cover 3 is conehead 301 shape, ensure that effective electric discharge of electrode tube 2.
Such as, when the diameter of electrode tube 2 is 300 millimeters, the internal diameter of protective cover 3 is 360 millimeters, and the external diameter of protective cover 3 is 420 millimeters, then electrode tube 2 is 30 millimeters with gap 5 distance of protective cover 3 internal diameter, and the wall thickness of protective cover 3 is 30 millimeters.
Wherein the length of protective cover 3 is arranged according to the length of electrode tube 2, is as the criterion not contact most high liquid level (HLL).
Be understandable that, above about specific descriptions of the present utility model, the technical scheme described by the utility model embodiment is only not limited to for illustration of the utility model, those of ordinary skill in the art is to be understood that, still can modify to the utility model or equivalent replacement, to reach identical technique effect; Needs are used, all within protection domain of the present utility model as long as meet.
Claims (7)
1. an electrode tube protective cover, wherein, the upper device of smelting furnace bell (1) has electrode tube (2), it is characterized in that: described electrode tube (2) excircle device has tubular protective cover (3), this protective cover (3) is fixed on bell (1), electrode lower end and the protective cover (3) of electrode tube (2) have certain distance, have gap (5) between the inner circle of protective cover (3) and the cylindrical of electrode tube (2), and the distance of this gap (5) is 20 ~ 60 millimeters.
2. a kind of electrode tube protective cover according to claim 1, it is characterized in that: the tubulose that the protective cover (3) of described electrode tube is as a whole, also can be welded as a tubulose by the first semi-circular tube (302) and the second semi-circular tube (303) by solder side (4).
3. a kind of electrode tube protective cover according to claim 1, is characterized in that: the material of described protective cover (3) is zirconium material.
4. a kind of electrode tube protective cover according to claim 1, is characterized in that: the upper electrode lower end place near electrode tube (2) of described protective cover (3) is conehead (301) shape.
5. a kind of electrode tube protective cover according to claim 1, is characterized in that: the distance in described gap (5) is 30 millimeters.
6. a kind of electrode tube protective cover according to claim 1, is characterized in that: the thickness of pipe of described protective cover (3) is 20 ~ 60 millimeters.
7. a kind of electrode tube protective cover according to claim 6, is characterized in that: the thickness of pipe of described protective cover (3) is 30 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420523976.2U CN204188006U (en) | 2014-09-13 | 2014-09-13 | A kind of electrode tube protective cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420523976.2U CN204188006U (en) | 2014-09-13 | 2014-09-13 | A kind of electrode tube protective cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204188006U true CN204188006U (en) | 2015-03-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420523976.2U Active CN204188006U (en) | 2014-09-13 | 2014-09-13 | A kind of electrode tube protective cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204188006U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109014459A (en) * | 2018-09-03 | 2018-12-18 | 安庆金辉煌电子科技股份有限公司 | A kind of electrode tube protection overcoat being adapted to different size |
-
2014
- 2014-09-13 CN CN201420523976.2U patent/CN204188006U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109014459A (en) * | 2018-09-03 | 2018-12-18 | 安庆金辉煌电子科技股份有限公司 | A kind of electrode tube protection overcoat being adapted to different size |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 475000 South Road, Jinming Road, Gulou District, Kaifeng City, Henan Patentee after: HENAN TENAI ENGINEERING MATERIALS CO., LTD. Address before: 475000 South Road, Jinming Road, Gulou District, Kaifeng City, Henan Patentee before: HENAN TENAI ENGINEERING MATERIALS CO., LTD. |