CN206422942U - A kind of graphite electrode cools structure - Google Patents
A kind of graphite electrode cools structure Download PDFInfo
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- CN206422942U CN206422942U CN201720144735.0U CN201720144735U CN206422942U CN 206422942 U CN206422942 U CN 206422942U CN 201720144735 U CN201720144735 U CN 201720144735U CN 206422942 U CN206422942 U CN 206422942U
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- graphite
- electrode
- shading ring
- housing
- graphite body
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Abstract
The utility model provides a kind of graphite electrode and cooled structure, it is characterised in that prolongs in the axially arranged shading ring of housing, each shading ring and sets ventilation slot, the heart sets axially extending bore in the housing, and through hole two ends extend respectively to two end electrodes top.By the above-mentioned means, isolating graphite body using shading ring, and ventilation slot is set in shading ring, the temperature of graphite body can be effectively reduced, so as to avoid top-down graphite oxidation from being lost, improve the life-span of electrode.
Description
Technical field
The utility model is related to graphite product, and more particularly to a kind of graphite electrode cools structure.
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
Kind of graphite electrode cools structure, 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
It is the axial ventilation groove being arranged concentrically that graphite body, which is separated into inside separate annular region, the shading ring, described every
The shading ring of correspondence position is separated into an inner ring and an outer shroud by individual ventilation slot；
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, and the one of laminating graphite body
End is provided with circular electric installation, inserts in graphite body；Other end connection electrode；
The graphite body center sets axial ventilation hole, and two ends are each passed through electrode lid arrangement and electrode, pushes up
End is placed in two end electrodes top.
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：Graphite body is isolated using shading ring, and
Ventilation slot is set in shading ring, the temperature of graphite body can be effectively reduced, so as to avoid top-down graphite oxidation
Loss, improves the life-span of electrode.
Brief description of the drawings
Fig. 1 is that the utility model graphite electrode cools the Longitudinal cross section schematic of structure.
Fig. 2 is that the utility model graphite electrode cools the cross-sectional view of structure.
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.
Cooled structure there is provided a kind of graphite electrode referring to Fig. 1, it is characterised in that including：Housing 1, graphite body 2
And shading 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
It is the axial ventilation groove being arranged concentrically that graphite body, which is separated into inside separate annular region, the shading ring, described every
The shading ring of correspondence position is separated into an inner ring and an outer shroud by individual ventilation slot；
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, and the one of laminating graphite body
End is provided with circular electric installation 41, inserts in graphite body；Other end connection electrode；
The graphite body center sets axial ventilation hole 5, and two ends are each passed through electrode lid arrangement and electrode, pushes up
End is placed in two end electrodes top.
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, meanwhile, it is interior
The ventilation slot that portion is set can take away the partial heat that graphite body is operationally produced, so as to reduce graphite body because of heating
And the oxidation produced..
By the above-mentioned means, isolating graphite body using shading ring, and ventilation slot is set in shading ring, can be effective
The temperature of graphite body is reduced, so as to avoid top-down graphite oxidation from being lost, the life-span of electrode is improved.
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)
- The structure 1. a kind of graphite electrode cools, 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 It is the axial ventilation groove being arranged concentrically that main body, which is separated into inside separate annular region, the shading ring, described each logical The shading ring of correspondence position is separated into an inner ring and an outer shroud by wind groove；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, and one end of laminating graphite body is set Circular electric installation is equipped with, is inserted in graphite body；Other end connection electrode；The graphite body center sets axial ventilation hole, and two ends are each passed through electrode lid arrangement and electrode, and top is put In two end electrodes top.
- The structure 2. a kind of graphite electrode according to claim 1 cools, it is characterised in that：The graphite body, every It is arranged at from ring and electrode lid arrangement in housing, the housing is closing housing, prevents internal structure and air contact oxygen Change.
- The structure 3. a kind of graphite electrode according to claim 1 cools, it is characterised in that：The shading ring is insulation Body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720144735.0U CN206422942U (en) | 2017-02-17 | 2017-02-17 | A kind of graphite electrode cools structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720144735.0U CN206422942U (en) | 2017-02-17 | 2017-02-17 | A kind of graphite electrode cools structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206422942U true CN206422942U (en) | 2017-08-18 |
Family
ID=59570966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720144735.0U Active CN206422942U (en) | 2017-02-17 | 2017-02-17 | A kind of graphite electrode cools structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206422942U (en) |
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2017
- 2017-02-17 CN CN201720144735.0U patent/CN206422942U/en active Active
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