CN2101839U - Anode with forced cooling ac (electric) arc furnace bottom - Google Patents
Anode with forced cooling ac (electric) arc furnace bottom Download PDFInfo
- Publication number
- CN2101839U CN2101839U CN 91206985 CN91206985U CN2101839U CN 2101839 U CN2101839 U CN 2101839U CN 91206985 CN91206985 CN 91206985 CN 91206985 U CN91206985 U CN 91206985U CN 2101839 U CN2101839 U CN 2101839U
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- conducting element
- anode
- copper sheathing
- cavity
- heat
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Abstract
The utility model discloses a bottom anode with a forced cooling AC electric arc furnace, comprising a conducting bar, a heat radiation conducting element, and a cooling medium input conduit. The heat radiation conducting element has four kinds of structures, and an electrode holder is clamped at the lower part of the heat radiation conducting element. The bottom anode which can be cooled by water as well as air has the advantages of simple structure, high safety, good cooling effect, and long-term use on large-tonnage furnaces.
Description
It is the electric furnace arrangement for producing steel parts that band of the present invention is forced the direct-current arc furnace bottom anode of cooling.
China's steel-making at present mostly is made up of rod iron electric conductor and the connection of platform shape graphite Cylinder with the end anode of direct current electric arc furnace, electrode holde is stuck on the graphite Cylinder, by the nature cooling heat dissipation, with the unshape refractory knotting, constitute an integral body around the end anode with furnace bottom.Facts have proved that anode of this end is safe and reliable, service life is longer, its shortcoming is that heat dissipation capacity is little, only be applicable to the stove of little tonnage, if on the direct current electric arc furnace of 10～30 tons and even 50 tons, use, because molten steel is many, thermal capacity is big, only just be difficult to meet the demands with the heat radiation of graphite Cylinder, must cause end temperature of anode to raise, the rubescent oxidation of graphite, even cause the bleed-out accident.The end anode of external large-sized DC electric arc furnaces is made up of the horizontal metal plate that two centres have the air guide fin, and 80～200 contact pilotages pass the bottom furnace lining and reach the molten bath by the air cooling chamber between two metallic plates, adopt the cooling of ventilating.Though anode construction of this end can satisfy the requirement of large-tonnage stove, complex structure is made difficulty, and cooling effect is undesirable, and service life is short.Purpose of the present invention will design a kind of simple in structure, easy to manufacture exactly, good cooling results, and the end anode that can use for a long time on the large-tonnage stove is to satisfy the constantly needs of the direct current electric arc furnace of development.
The present invention is made of contact rod, heat radiation conducting element, cooling medium input pipe, and electrode holde is stuck on the Cylinder of heat radiation conducting element bottom, and cooling medium is water or air.Contact rod is the garden cylindricality, also can make square column or other shapes, adopts ingot iron or mild steel manufacturing.The heat radiation conducting element has four kinds of forms: first kind is made of two parts, and top is that vertical section is the graphite piece of T shape, in the garden cylindrical cavity is arranged, the bottom is a copper sheathing, copper sheathing is set in the garden cylindrical cavity of graphite piece tightly; Second kind is made of two parts, and top is an inverted spill graphite garden platform, and the bottom is a mushroom copper sheathing, and copper sheathing is set in graphite round platform poor tightly; The third is a mushroom copper sheathing; The 4th kind is a garden cylindricality copper sheathing.The cooling medium input pipe is a common steel tube, stretches into the top of copper sheathing inner chamber, makes heat radiation conducting element cavity top keep the best state of cooling.Large-tonnage (more than 10 tons) is used water cooling, little tonnage stove below 10 tons is except that with the water cooling, also can use air cooling, if the employing air cooling, the heat radiation conducting element of first kind of structure also can not add copper sheathing, and cool air hose directly inserts the top of graphite piece garden cylindrical cavity, increase along with the stove tonnage, in order to satisfy the requirement of technology, also contact rod can be increased to 3 by one, and the heat radiation conducting element still is one.
The present invention since the contact rod radical few and have only one the heat radiation conducting element, simple in structure, safe and reliable, refractory material knotting on every side is easy, and the knotting quality guarantees easily, again owing to adopted the pressure cooling, particularly can use water cooling, intensity of cooling is big, and is effective, long service life can be used on the large-tonnage stove.
Fig. 1 is the structural representation of embodiment 1
Fig. 2 is the structural representation of embodiment 2
Fig. 3 is the structural representation of embodiment 3
Fig. 4 is the structural representation of embodiment 4
Embodiments of the invention are as follows:
Embodiment 1:
The conducting element that dispels the heat has in the present embodiment as can be seen from Figure 1 adopted first kind of structure, and the graphite piece vertical section is a T shape, and the cross section is a garden shape.A garden cylindricality ingot iron contact rod (1) is sitting on the graphite piece (2),, conducts electricity and heat conduction to prevent contact rod distortion dislocation and influence around the contact rod one deck magnesia carbon refractory (9) of on graphite piece, tie a knot.Copper sheathing (3) is set in the garden cylindrical cavity of graphite piece (2), and both are contacted well, and the inner chamber top of copper sheathing is stretched in the bottom that cooling medium input pipe (4) passes copper sheathing (3).Pad one deck casting mica (6) between end anode and the furnace shell (7), pad one deck alumina silicate fiber felt (8) above the furnace shell (7), the magnesia amorphous refractory (11) of tiing a knot around the end anode.Contact rod (1) and refractory material on every side are exhaustion layer, and graphite piece (2) and refractory material on every side are permanent layer, and contact rod (1) is laid 2 armouring galvanic couples (10) on every side to determine to change the time of exhaustion layer.Electrode holde (5) is stuck in the bottom of graphite piece (2).The cooling medium of present embodiment is a water.
Embodiment 2:
The heat radiation conducting element has adopted second kind of structure in the present embodiment as seen from Figure 2, graphite piece (2) is an inverted spill garden platform, copper sheathing (3) is a mushroom, earlier in graphite garden platform (2) poor, put some conductive pastes, then copper sheathing (3) is set in tightly in graphite garden platform (2) poor, both are contacted well, and electrode holde (5) is stuck in the bottom of copper sheathing (3).Remaining implementation method is identical with embodiment 1.
Embodiment 3:
As seen from Figure 3, the heat radiation conducting element of present embodiment has adopted the third structure, does not have graphite piece, has only a copper sheathing (3).A garden cylindricality ingot iron contact rod (1) adopts welding with being connected of copper sheathing (3), and cooling medium input pipe (4) passes the bottom of copper sheathing (3) and stretches into copper sheathing cavity top.Pad one deck casting mica (6) between copper sheathing and the furnace shell (7), pad one deck alumina silicate fiber felt (8) above the furnace shell (7), the magnesia amorphous refractory (11) of tiing a knot around the end anode, contact rod (1) is an exhaustion layer with refractory material on every side, and heat radiation conducting element copper sheathing (3) is a permanent layer with refractory material on every side.Contact rod (1) is laid 2 armouring galvanic couples (10) on every side to determine to change the time of exhaustion layer.Electrode holde (5) is stuck in the bottom of copper sheathing, and the cooling medium of present embodiment is a water.
Embodiment 4:
The heat radiation conducting element of present embodiment is the 4th a kind of structure as shown in Figure 4, with unique difference of embodiment 3 be that copper sheathing as the heat radiation conducting element is a garden cylindrical cavity structure, rather than the mushroom cavity structure, also saved casting mica, other implementation methods are identical with embodiment 3.
Claims (5)
1, a kind of direct-current arc furnace bottom anode, by contact rod and coupled conduction heat dissipation element, cooling medium input pipe, control device and form, it is characterized in that dispelling the heat conducting element top and contact rod joins, in the heat radiation conducting element cavity is set, the cooling medium input pipe extends the cavity internal upper part.
2, the end according to claim 1 anode, it is characterized in that dispelling the heat conducting element by vertical section be T shape, graphite piece with garden column cavity constitutes with the copper sheathing that is bumped in the cavity.
3, the end according to claim 1 anode, it is characterized in that dispelling the heat conducting element by the copper sheathing that is mushroom cavity be poor the matching of being inverted the concavity graphite piece and constitute.
4, the end according to claim 1 anode, the conducting element that it is characterized in that dispelling the heat is made of the copper sheathing that is the mushroom cavity.
5, the end according to claim 1 anode, the conducting element that it is characterized in that dispelling the heat is made of the copper sheathing that is garden column cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91206985 CN2101839U (en) | 1991-04-24 | 1991-04-24 | Anode with forced cooling ac (electric) arc furnace bottom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91206985 CN2101839U (en) | 1991-04-24 | 1991-04-24 | Anode with forced cooling ac (electric) arc furnace bottom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2101839U true CN2101839U (en) | 1992-04-15 |
Family
ID=4916530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91206985 Expired - Lifetime CN2101839U (en) | 1991-04-24 | 1991-04-24 | Anode with forced cooling ac (electric) arc furnace bottom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2101839U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048141C (en) * | 1994-03-03 | 2000-01-05 | 冶金工业部钢铁研究总院 | Bottom electrode in DC arc furnace and its cooling method |
| CN102463333A (en) * | 2011-12-02 | 2012-05-23 | 江苏凯特汽车部件有限公司 | Low-pressure cast aluminum-alloy wheel top-mould cooling device |
| CN103261491A (en) * | 2010-12-23 | 2013-08-21 | 通用电气-日立核能美国有限责任公司 | Modular anode assemblies and methods of using the same for electrochemical reduction |
| US9920443B2 (en) | 2010-12-23 | 2018-03-20 | Ge-Hitachi Nuclear Energy Americas Llc | Modular cathode assemblies and methods of using the same for electrochemical reduction |
-
1991
- 1991-04-24 CN CN 91206985 patent/CN2101839U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048141C (en) * | 1994-03-03 | 2000-01-05 | 冶金工业部钢铁研究总院 | Bottom electrode in DC arc furnace and its cooling method |
| CN103261491A (en) * | 2010-12-23 | 2013-08-21 | 通用电气-日立核能美国有限责任公司 | Modular anode assemblies and methods of using the same for electrochemical reduction |
| CN103261491B (en) * | 2010-12-23 | 2016-04-20 | 通用电气-日立核能美国有限责任公司 | Modularization anode assemblies and its method for electrochemical reduction of use |
| US9920443B2 (en) | 2010-12-23 | 2018-03-20 | Ge-Hitachi Nuclear Energy Americas Llc | Modular cathode assemblies and methods of using the same for electrochemical reduction |
| CN102463333A (en) * | 2011-12-02 | 2012-05-23 | 江苏凯特汽车部件有限公司 | Low-pressure cast aluminum-alloy wheel top-mould cooling device |
| CN102463333B (en) * | 2011-12-02 | 2014-05-07 | 江苏凯特汽车部件有限公司 | Low-pressure cast aluminum-alloy wheel top-mould cooling device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |