CN202648389U - Direct current nodular cast iron pouring electric stove - Google Patents
Direct current nodular cast iron pouring electric stove Download PDFInfo
- Publication number
- CN202648389U CN202648389U CN2012202904238U CN201220290423U CN202648389U CN 202648389 U CN202648389 U CN 202648389U CN 2012202904238 U CN2012202904238 U CN 2012202904238U CN 201220290423 U CN201220290423 U CN 201220290423U CN 202648389 U CN202648389 U CN 202648389U
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- Prior art keywords
- stove
- direct current
- electrode
- support
- iron
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
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- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model relates to a direct current nodular cast iron pouring electric stove which comprises a stove body, a stove cover, a top electrode, a bottom electrode and a top electrode lifting mechanism. A stove inclination support with a circular arc bottom is arranged on the stove body. The stove inclination support is supported by a supporting wheel arranged at the bottom of the stove inclination support in rotating mode. A stove inclination hydraulic cylinder is arranged on the outer side of the stove body. The stove inclination hydraulic cylinder is connected with the stove inclination support. The direct current nodular cast iron pouring electric stove has the advantages that the contact area between a stove bottom and melted iron is large, metal ions of all sorts in the melted nodular cast iron in the stove fully carry out electrolytic reaction in high-temperature slag liquid of alkalinity, equilibration time of electrochemical reaction is short, magnesium contents in melted iron do not reduce any more, the temperature difference between the upper level and the lower level of the melted iron is small, the constituent is even and therefore spheroidization degradation is avoided and prevented.
Description
Technical field
The utility model relates to a kind of production equipment of spheroidal graphite cast-iron, specifically a kind of direct current spheroidal graphite cast-iron pouring electric furnace.
Background technology
At present, spheroidal graphite cast-iron decaying spheroidisation phenomenon in casting process is very serious, although multiple technique and the equipment that prevents spheroidal graphite cast-iron nodularization decline occurred, its effect is unsatisfactory, thereby the decaying spheroidisation phenomenon has become a difficult problem that hinders the development of spheroidal graphite Cast Iron Production field.
The utility model content
The purpose of this utility model just provides a kind of direct current spheroidal graphite cast-iron pouring electric furnace, to solve the problem of spheroidal graphite cast-iron nodularization decline.
The utility model is achieved in that a kind of direct current spheroidal graphite cast-iron pouring electric furnace, comprise body of heater, bell, top electrode, hearth electrode, top electrode elevating mechanism, be provided with the bottom at described body of heater and be the turndown support of circular arc, described turndown support is by the support wheel rotational support that is arranged on the bottom; The outside at described body of heater is provided with tilting hydraulic cylinder, and described tilting hydraulic cylinder and described turndown support join.
Described bell is spherical, has at described bell and can hold the cylindrical void that described top electrode inserts.
Described bell in described cylindrical void both sides is provided with guide rail, and two movable carrier bars that hide described cylindrical void are set in described guide rail, and the medial extremity of two described movable carrier bars is receiving electrode cross-under frame altogether; Described electrode cross-under frame is to be provided with insulation sleeve in cooling jacket.
Described hearth electrode is copper-steel composite plate, and its copper coin faces up and is installed in the bottom surface of described body of heater, and cover is connected to insulation board in the bottom surface of described hearth electrode; End face at described hearth electrode has been built conductive brick by laying bricks or stones; Described hearth electrode joins by be flexible coupling conductive plate and contact tube.
Described top electrode connects the positive pole of dc source, and described hearth electrode connects the negative pole of dc source.
The decline of liquid iron balling is inversely proportional to conduction time under the same conditions, and namely conduction time, more the long ball decline was fewer.The utility model is offered by the setting of circular arc turndown support and the cylindrical void on the spherical bell, can make top electrode stretch into all the time in the body of heater at the electric furnace hot metal charging with in the electric furnace tilting process, and with stove in the molten iron level joint, can realize thus the uninterrupted power supply of electric furnace in hot metal charging and turndown process, thereby guarantee that to greatest extent the molten ductile iron nodularization do not fail.
In the electric furnace tilting process, the insulation dust-proof mechanism on the bell cylindrical void can remain all standing to the bell cylindrical void, plays insulation and prevents the effect that flue gas is excessive, makes the furnace energy-saving environmental protection.
In direct current furnace, hearth electrode all is to use as anode, and the utility model uses hearth electrode as negative electrode, and builds by laying bricks or stones with conductive brick on the hearth electrode made by copper-steel composite plate and form the EAF bottom that directly contacts with molten iron.This hearth electrode is compared with the hearth electrode of other structures, the contact area of furnace bottom and molten iron is large, in the stove in the molten ductile iron contained each metal ion species that the course of reaction of cell reaction occurs in high-temperature alkaline slag liquid is abundant, the electrochemical reaction equilibration time is short, content of magnesium in the iron liquid no longer descends, the upper and lower temperature difference of molten iron is little, and homogeneous chemical composition prevents and avoided decaying spheroidisation thus.
The utility model prevents that the function of magnesium iron decaying spheroidisation is remarkable, and the cast frequency is high, and Quality of Nodular Iron Casting is good, and yield rate is high.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of turndown process.
Fig. 3, Fig. 4 are front view and the top views of insulation dust-proof mechanism.
Fig. 5 is the hearth electrode mounting structure schematic diagram of bottom of furnace body.
Among the figure: 1, top electrode elevating mechanism, 2, the insulation dust-proof mechanism, 3, bell, 4, body of heater, 5, top electrode, 6, hearth electrode, 7, supporting seat, 8, the elevating mechanism bearing, 9, cylindrical void, 11, the turndown support, 12, support wheel, 13, tilting hydraulic cylinder, 14, contact tube, 15, the conductive plate that is flexible coupling, 16, conductive brick, 17, insulation board, 21, guide rail, 22, movable carrier bar, 23, electrode cross-under frame, 24, cooling jacket, 25, insulation sleeve.
The specific embodiment
As shown in Figure 1 and Figure 2, the utility model comprises the conventional parts such as body of heater 4, bell 3, hearth electrode 6, top electrode 5 and top electrode elevating mechanism 1, and top electrode elevating mechanism 1 is seated in elevating mechanism bearing 8(and claims again " top electrode elevating mechanism basis ") on.Be provided with the bottom at body of heater 4 and be turndown support 11(Fig. 2 of circular arc), be provided with four support wheels 12 in the bottom of turndown support 11, so that turndown support 11 is carried out rotational support.Support wheel 12 is seated in supporting seat 7(and claims again " body of heater basis ") on.Be provided with tilting hydraulic cylinder 13 in the outside of body of heater 4, the piston rod of stove hydraulic cylinder 13 is hinged on the turndown support 11, with by pushing away, draw the operation of turndown support, makes body of heater 4 upset or returns.
Body of heater basis in the utility model is independent separately with top electrode elevating mechanism basis.
Bell 3 is spherical, has the charge door that adds molten iron and cylindrical void 9(Fig. 2 of a strip at bell 3), this cylindrical void 9 can hold the insertion of top electrode 5 and extract, and can top electrode 5 is plugged in the body of heater 4 all the time.Domed bell 3 on fastening to body of heater 4 after, can consist of a concentrically ringed structure with the support 11 of circular arc.Like this, so long as electric furnace is done turndown when operation, the bell peak of electric furnace locus with respect to the electric furnace basis is constant all the time.Not only can make thus electric furnace upper part of the cover equipment be easy to arrange, and be convenient to realize molten iron discharging and the hot metal charging uninterrupted power supply of electric furnace.
As shown in Figure 3, Figure 4, hiding at the cylindrical void 9 of bell 3 has the movable carrier bar 22 that is slidingly connected, and namely is connected to roller on the both sides of movable carrier bar 22, and roller is positioned at guide rail 21, and guide rail 21 is arranged on the bell 3 on cylindrical void 9 both sides.The medial extremity that is provided with 22, two movable carrier bars 22 of forward and backward two movable carrier bars in guide rail 21 is connected on the electrode cross-under frame 23 altogether.Electrode cross-under frame 23 is that cross-under has insulation sleeve 25 in cooling jacket 24, and insulation sleeve 25 is socketed on the top electrode 5.Like this, in the electric furnace tilting process, movable carrier bar 22 can cover the cylindrical void 9 on the bell 3 all the time, thereby has played the effect that cylindrical void hides, to keep furnace temperature and to prevent that flue gas is excessive.
As shown in Figure 5, hearth electrode in the utility model 6 adopts the copper-steel composite plate structures, and its copper coin faces up and be installed in the bottom surface of body of heater 4, and cover is connected to insulation board 17 in the bottom surface of hearth electrode 6; Built conductive brick 16 by laying bricks or stones at the end face of hearth electrode 6; Hearth electrode 6 joins with contact tube 14 by the conductive plate 16 of being flexible coupling, the negative pole of external direct current power supply again, and the top electrode 5 of electric furnace top connects the positive pole of dc sources.
The utility model also can adopt infrared ray automatic temperature measurement technology, and molten iron temperature in the stove is carried out Real Time Monitoring.When molten iron temperature in the stove during near the required minimum temperature of magnesium iron, add heating molten steel; When molten ductile iron in the stove during near required maximum temperature, then molten iron is incubated.So just can be controlled at temperature in the stove in the optimum temperature range that forms the magnesium iron nodularization, avoid the generation of magnesium iron decaying spheroidisation phenomenon.
The utility model also can be installed weighing device and inclinator, and under the control of automaton, furnace tilting mechanism is by to the control of turndown angle, and it is controlled, adjustable to make molten iron water fluence, improves thus the cast frequency, increases work efficiency.
Claims (5)
1. direct current spheroidal graphite cast-iron pouring electric furnace, comprise body of heater (4), bell (3), top electrode (5), hearth electrode (6), top electrode elevating mechanism (1), it is characterized in that, be provided with the bottom at described body of heater (4) and be the turndown support (11) of circular arc, described turndown support (11) is by support wheel (12) rotational support that is arranged on the bottom; Be provided with tilting hydraulic cylinder (13) in the outside of described body of heater (4), described tilting hydraulic cylinder (13) joins with described turndown support (11).
2. direct current spheroidal graphite cast-iron pouring electric furnace according to claim 1 is characterized in that, described bell (3) is spherical, has at described bell (3) and can hold the cylindrical void (9) that described top electrode inserts.
3. direct current spheroidal graphite cast-iron pouring electric furnace according to claim 2, it is characterized in that, described bell (3) in described cylindrical void (9) both sides is provided with guide rail (21), two movable carrier bars (22) that hide described cylindrical void are set in described guide rail (21), and the medial extremity of two described movable carrier bars (22) is receiving electrode cross-under frame (23) altogether; Described electrode cross-under frame (23) is to be provided with insulation sleeve (25) in cooling jacket (24).
4. according to claim 1,2 or 3 described direct current spheroidal graphite cast-iron pouring electric furnaces, it is characterized in that, described hearth electrode (6) is copper-steel composite plate, and its copper coin faces up and is installed in the bottom surface of described body of heater (4), and cover is connected to insulation board (17) in the bottom surface of described hearth electrode (6); Built conductive brick (16) by laying bricks or stones at the end face of described hearth electrode (6); Described hearth electrode (6) joins by the conductive plate that is flexible coupling (16) and contact tube (14).
5. direct current spheroidal graphite cast-iron pouring electric furnace according to claim 1 is characterized in that, described top electrode (5) connects the positive pole of dc source, and described hearth electrode (6) connects the negative pole of dc source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202904238U CN202648389U (en) | 2012-06-20 | 2012-06-20 | Direct current nodular cast iron pouring electric stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202904238U CN202648389U (en) | 2012-06-20 | 2012-06-20 | Direct current nodular cast iron pouring electric stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202648389U true CN202648389U (en) | 2013-01-02 |
Family
ID=47417486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202904238U Expired - Fee Related CN202648389U (en) | 2012-06-20 | 2012-06-20 | Direct current nodular cast iron pouring electric stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202648389U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017082A (en) * | 2016-05-31 | 2016-10-12 | 芜湖鸣人热能设备有限公司 | Dumping type melting furnace |
| CN113063290A (en) * | 2020-01-02 | 2021-07-02 | 中国瑞林工程技术股份有限公司 | Device and method for accurately metering and treating copper-containing material |
-
2012
- 2012-06-20 CN CN2012202904238U patent/CN202648389U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017082A (en) * | 2016-05-31 | 2016-10-12 | 芜湖鸣人热能设备有限公司 | Dumping type melting furnace |
| CN113063290A (en) * | 2020-01-02 | 2021-07-02 | 中国瑞林工程技术股份有限公司 | Device and method for accurately metering and treating copper-containing material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20200620 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |