CN206442545U - A kind of low-loss graphite electrode - Google Patents
A kind of low-loss graphite electrode Download PDFInfo
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- CN206442545U CN206442545U CN201720144741.6U CN201720144741U CN206442545U CN 206442545 U CN206442545 U CN 206442545U CN 201720144741 U CN201720144741 U CN 201720144741U CN 206442545 U CN206442545 U CN 206442545U
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- graphite
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- shading ring
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Abstract
The utility model provides a kind of low-loss graphite electrode, and its graphite body is kept apart using insulator shading ring, can effectively avoid heating graphite top-down oxidation caused by, reduces oxidation area, and reduction export license improves the service life of electrode；Use sealing sandwich type element can be with graphite body from external oxidation, so as to further improve its service life simultaneously.
Description
Technical field
The utility model is related to graphite product, more particularly to a kind of low-loss graphite electrode.
Background technology
Graphite electrode is electric arc furnaces and the indispensable important materials of external refining ladle stove.Graphite electrode consumption is excessive to be
The subject matter of electric-arc furnace steelmaking and LF refining, the electric furnace graphite electrode average quantity used in unit volume blasted of current China is 7~8kg/t steel, about
Account for the 8% of electric furnace steel making cost.The main Chan Gang states graphite electrode consumption in the world is averagely less than 5kg/t steel, and world's best level is
2.4kg/t steel.
The graphite electrode that smelter is used, raw material are mainly asphalt and coal tar asphalt, and it has good
High-temperature behavior, thermal coefficient of expansion is low, lightweight, and corrosion resistance is strong, it is easy to process, and thermal shock resistance is excellent, but it is in height
Easily aoxidized under temperature, the oxidation of graphite is since 450 DEG C, and more than 750 DEG C rear oxidations are sharply increased, and with temperature rise and
Aggravation, usual graphite electrode surface temperature is very high, and is under air ambient, causes serious oxidation.
In an oxidizing atmosphere, high temperature is easily oxidized graphite, thus graphite electrode since aoxidize position down
It is tapered, declines the anti-consumption of electrode；Additionally, due to the kelvin effect of electric current, thinner electrode, current density increase, electricity
The heavy current impact capacity of pole also declines, so as to result in the unit consumption increase of graphite electrode.
Utility model content
To realize above-mentioned technical purpose and the technique effect, the utility model is achieved through the following technical solutions：One
Plant low-loss graphite electrode, it is characterised in that including：Housing, graphite body and shading ring；
The shading ring is to prolong the axially arranged concentric ring of housing, and its length is from shell one end to the other end, by inside
Graphite body is separated into separate annular region；
The graphite body is arranged at mutually isolated between the region between two neighboring shading ring, two layers of graphite；
The graphite body two ends set electrode lid arrangement, and one end and graphite body end are closely connected, other end connection external electrical
Pole；
The graphite body home position sets conductive pole, two ends difference connection electrode lid arrangement.
Preferably, the graphite body, shading ring and electrode lid arrangement are arranged in housing, and the housing is closing
Housing, prevents internal structure from being aoxidized with air contact.
Preferably, the shading ring is insulator.
The situation of prior art is different from, the beneficial effects of the utility model are：Its graphite body is isolated using insulator
Ring is kept apart, and can effectively avoid heating graphite top-down oxidation caused by, reduces oxidation area, reduction electricity
Pole loss improves the service life of electrode；Use sealing sandwich type element can be with graphite body from external oxidation, so as to enter one simultaneously
Step improves its service life.
Brief description of the drawings
Fig. 1 is the Longitudinal cross section schematic of the utility model low-loss graphite electrode.
Fig. 2 is the cross-sectional view of the utility model low-loss graphite electrode.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Referring to Fig. 1, there is provided a kind of low-loss graphite electrode, it is characterised in that including：Housing 1, graphite body 2 and every
From ring 3；
The shading ring is to prolong the axially arranged concentric ring of housing, and its length is from shell one end to the other end, by inside
Graphite body is separated into separate annular region；
The graphite body is arranged at mutually isolated between the region between two neighboring shading ring, two layers of graphite；
The graphite body two ends set electrode lid arrangement 4, and one end and graphite body end are closely connected, other end connection external electrical
Pole；
The graphite body home position sets conductive pole 5, two ends difference connection electrode lid arrangement.
Specifically,
The graphite body, shading ring and electrode lid arrangement are arranged in housing, and the housing is closing housing, is prevented
Only internal structure is aoxidized with air contact；The shading ring is insulator.
In specific implementation process, graphite body uses partition type independence graphite annulus, and shading ring is insulator, it is to avoid
The internal current circulation formed between adjacent two layers graphite annulus, reduces inner current loops and send the loss caused.Each
, it is necessary to be changed to whole graphite body after individual graphite annulus loss excessively, it is only necessary to refill graphite material, punching press is close
Seal, it is convenient and swift.
By the above-mentioned means, its graphite body is kept apart using insulator shading ring, effectively graphite can be avoided to send out
Heat oxidation top-down caused by, reduces oxidation area, and reduction export license improves the service life of electrode；Adopt simultaneously
Can be with graphite body from external oxidation, so as to further improve its service life with sealing sandwich type element.
Embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is every
The equivalent structure or equivalent flow conversion made using the utility model specification and accompanying drawing content, or direct or brief introduction are used in
Other correlative technology fields, are similarly included in scope of patent protection of the present utility model.
Claims (3)
1. a kind of low-loss graphite electrode, it is characterised in that including：Housing, graphite body and shading ring；
The shading ring is to prolong the axially arranged concentric ring of housing, and its length is from shell one end to the other end, by internal graphite
Main body is separated into separate annular region；
The graphite body is arranged at mutually isolated between the region between two neighboring shading ring, two layers of graphite；
The graphite body two ends set electrode lid arrangement, and one end and graphite body end are closely connected, other end connection outer electrode；
The graphite body home position sets conductive pole, two ends difference connection electrode lid arrangement.
2. a kind of low-loss graphite electrode according to claim 1, it is characterised in that：The graphite body, shading ring with
And electrode lid arrangement is arranged in housing, the housing is closing housing, prevents internal structure from being aoxidized with air contact.
3. a kind of low-loss graphite electrode according to claim 1, it is characterised in that：The shading ring is insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720144741.6U CN206442545U (en) | 2017-02-17 | 2017-02-17 | A kind of low-loss graphite electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720144741.6U CN206442545U (en) | 2017-02-17 | 2017-02-17 | A kind of low-loss graphite electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206442545U true CN206442545U (en) | 2017-08-25 |
Family
ID=59634377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720144741.6U Active CN206442545U (en) | 2017-02-17 | 2017-02-17 | A kind of low-loss graphite electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206442545U (en) |
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2017
- 2017-02-17 CN CN201720144741.6U patent/CN206442545U/en active Active
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