CN101769679A - Electric furnace - Google Patents
Electric furnace Download PDFInfo
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- CN101769679A CN101769679A CN200810246888A CN200810246888A CN101769679A CN 101769679 A CN101769679 A CN 101769679A CN 200810246888 A CN200810246888 A CN 200810246888A CN 200810246888 A CN200810246888 A CN 200810246888A CN 101769679 A CN101769679 A CN 101769679A
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Abstract
The invention relates to an electric furnace, comprising a furnace body, an electrode assembly arranged above the furnace body, an upper contracting brake which enclasps or loosens the electrode body, a lower contracting brake which enclasps or loosens the electrode body, an elevator mechanism and an electric conduction mechanism; wherein the electrode assembly is provided with an electrode body which stretches into the furnace body and moves up and down, the low contracting brake is arranged below the upper contracting brake, the lower contracting brake is arranged on the elevator mechanism and moves along with the elevator mechanism, the electric conduction mechanism is electrically contacted with the electrode body and synchronously moves with the elevator mechanism relative to the electrode body. According to the electric furnace of the invention, the electrode device can conveniently compensate electrode consumption with high operation efficiency.
Description
Technical field
The present invention relates to a kind of electric furnace, especially relate to a kind of electric furnace with improved electrode assembly.
Background technology
Electric furnace is the metallurgical equipment of extensive use, and the electrode of electric furnace is arranged on the top of body of heater and stretches in the electric furnace, often regulate electrode and insert the degree of depth in the body of heater in order to adapt to different operating mode needs, so the electrode of electric furnace normally movably.
Traditional electric furnace utilizes winding plant lifting electrode usually, and the hawser of winding plant is hung the two ends at electrode clamping device, thereby realizes the lifting of electrode.In addition, the electric furnace that adopts spiral lift device lifting electrode is arranged also, the electrode overall fixed is on spiral lift device, and electrode moves up and down along with the lifting of spiral lift device.Along with the use of electrode, the lower end that electrode inserts in the body of heater can constantly consume, and the length of inserting in the body of heater shortens, and only rely on lowering or hoisting gear lifting electrode to meet the demands this moment, electrode need be come the consumption of compensating electrode with respect to whole decline of lowering or hoisting gear.
The lowering or hoisting gear and the electric installation of traditional electrode are fixed with respect to electrode, electrode can't move with respect to lowering or hoisting gear, electric installation also can't be relative to moving with electrode, therefore the extreme electrode length that can stretch in the electric furnace body is fixed, when electrode is a certain amount of through having used post consumption, can't meet the demands.For this reason, need to have a power failure, take being connected of electrode and electric supply installation simultaneously apart, readjust the relative position of electrode and electric supply installation, and then retighten electric supply installation, use the electric supply installation clamping electrode, promptly come the consumption of compensating electrode by the manual mode of pressing, so complicated operation, the cost height, need blowing out, reduced efficient, also have certain danger simultaneously.
Summary of the invention
The present invention is intended to one of above-mentioned technical problem that solves at least the prior art existence.
For this reason, the objective of the invention is to propose the electric furnace of the high electrode assembly of a kind of consumption with compensating electrode easily and operating efficiency.
Electric furnace according to the present invention comprises: body of heater and the electrode assembly that is arranged on the body of heater top, and described electrode assembly has electrode body, and described electrode body stretches into body of heater and removable along the vertical direction; Hold and unclamp the last band-type brake of electrode body tightly; Hold and unclamp the following band-type brake of described electrode body tightly, described band-type brake down is positioned at the band-type brake below; Elevating mechanism, wherein said band-type brake down are installed on the described elevating mechanism to move with described elevating mechanism; And conductive mechanism, described conductive mechanism and electrode body electrically contact and can with elevating mechanism with respect to the same moved further of electrode body.
In addition, also have following additional technical feature according to electric furnace of the present invention:
Described conductive mechanism comprises: brasses, and described brasses electrically contacts with electrode body and links to each other with elevating mechanism; And clamping part, described clamping part is pressed to brasses on the electrode body and with elevating mechanism and links to each other.
Described conductive mechanism comprises and further comprises mobile collector ring that described mobile collector ring is electrically connected with brasses by compliant conductive spare and links to each other with elevating mechanism.
Electrode assembly further comprises the casing that is enclosed within the electrode body outside, described casing is positioned at below the elevating mechanism and with elevating mechanism and links to each other to move with respect to electrode body with elevating mechanism, wherein said mobile collector ring is fixed on the outer surface of casing, and described brasses links to each other with casing by suspension rod respectively with clamping part.
Described hold assembly comprises: annular body, described annular body are enclosed within the brasses outside and link to each other with casing by suspension rod; Circumferentially be fixed on a plurality of fixed covers in the annular body along annular body; Be arranged on the top in each fixed cover; Be arranged on the push pedal in each fixed cover; Be arranged between push pedal and the top and will come directly towards the elastic component of often pushing top board to; With the adjusting nut that is arranged on the thrust of adjusting elastic component in each fixed cover.
Described brasses is split type.
Electrode assembly further comprises fixedly collector ring, and described fixedly collector ring is suitable for being connected with power supply and being electrically connected with mobile collector ring by compliant conductive spare.
Described compliant conductive spare is flexible copper strips.
The described band-type brake of going up is respectively hydraulic contracting with following band-type brake.
Described elevating mechanism comprises that lifting platform drives the hydraulic cylinder of lifting platform lifting with linking to each other with lifting platform.
At least have one of following advantage according to electric furnace of the present invention:
According to electric furnace of the present invention, because electrode assembly is provided with band-type brake and following band-type brake,, and need not to pull down conductive mechanism and elevating mechanism when needs integral body traveling electrode body during with the consumption of compensating electrode, need not blowing out, simple to operate, efficient is high, cost is low.
In addition, brasses can be pressed on the electrode body by clamping part, feasible power supply to electrode body more reliably and not influences brasses moving with respect to electrode body.
Conductive mechanism is provided with mobile collector ring, and mobile collector ring links to each other with brasses by compliant conductive spare respectively and with elevating mechanism one lifting, reduced the contingent interference of brasses lifting process.
By the casing that connects elevating mechanism and mobile collector ring and brasses and clamping part being set, can make that the motion of conductive mechanism and lowering or hoisting gear is more synchronous in the electrode body outside.
By brasses being arranged to the split-type structural that several sub-tile fragments constitute, and each sub-tile fragment is pressed on the electrode body by a plurality of elastic components in the annular body that is arranged on clamping part respectively, make brasses more reliable with contacting of electrode body, thereby conduct electricity more reliably, reduced interference each other.
According to electric furnace of the present invention, electrode assembly is by being provided with the fixedly collector ring that links to each other with mobile collector ring by compliant conductive spare, can make to the power supply of conductive mechanism more reliably, reduced the interference that may exist between power supply and the conductive mechanism.
According to electric furnace of the present invention, the elevating mechanism of electrode assembly adopts Driven by Hydraulic Cylinder, and the synchronism of hydraulic cylinder is controlled easily, makes that the lifting of electrode is more steady.
Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is that the master according to the electric furnace of the embodiment of the invention looks schematic diagram;
Fig. 2 is the schematic side view according to the electric furnace of the embodiment of the invention;
Fig. 3 is the structural representation according to the electrode assembly of embodiment of the invention electric furnace;
Fig. 4 is the partial schematic diagram according to the electrode assembly of embodiment of the invention electric furnace, wherein mainly shows conductive mechanism;
Fig. 5 is the partial schematic diagram according to the clamping part of the electrode assembly of embodiment of the invention electric furnace.
The specific embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the present invention, and can not similarly is limitation of the present invention.
Below with reference to the electric furnace of accompanying drawing description according to the embodiment of the invention.
As Figure 1-3, comprise body of heater 300 and the electrode assembly 100 that is arranged on body of heater 300 tops according to embodiment of the invention electric furnace.More specifically, body of heater 300 also comprises bell 200, bell 200 covers on the upper end open of body of heater 300 and is used for capping body of heater 300, here, bell 200 is described as the part of body of heater 300, certainly, also bell 200 and body of heater can be used as two parts, this only is exemplary description, and can not be interpreted as limitation of the present invention.Electrode assembly 100 is arranged on above the bell 200.
The electrode patchhole that the lower end of the electrode body 1 of electrode assembly 100 is passed on the bell 200 stretches in the body of heater 300.According to concrete operating mode and needs, the length that electrode body 1 stretches in the body of heater 300 needs to regulate, and therefore needs lifting electrode body 1.When the lower end of electrode body 1 is depleted to when a certain amount of, elevating mechanism 5 and the conductive mechanism integral body of electrode body 1 with respect to electrode assembly 100 need be moved down.
Describe electrode assembly 100 below in detail according to embodiment of the invention electric furnace.Shown in Fig. 3 and 4, the electrode assembly 100 of an example comprises electrode body 1 according to the present invention, last band-type brake 2, following band-type brake 3, elevating mechanism 5 and conductive mechanism.
Electrode body 1 can be equipped with the cylindrical body of electrode paste for inside, and the lower end of electrode body 1 is passed bell 200 and stretched in the body of heater 300, and the lower end of electrode body 1 in use can constantly consume.In addition, for the electrode patchhole slit between enclosed electrode body 1 and the bell 200, bell 200 is provided with sealing ring 18 usually.
Last band-type brake 2 is installed on the bearing 4, is used to hold tightly and unclamps electrode body 1, and bearing 4 is installed on the fixed frame 6.Following band-type brake 3 is positioned at below the band-type brake 2, equally with last band-type brake 2 is used to hold tightly and unclamps electrode body 1.During normal use, last band-type brake 2 unclamps electrode body 1, and band-type brake 3 is held electrode body 1 (for example electrode body 1 is held at the primary importance place on electrode body 1 tightly) tightly down, when thereby band-type brake 3 is with elevating mechanism 5 liftings instantly, electrode body 1 synchronization lifting, thus change electrode body 1 stretches into the length in the body of heater 300.When needing the consumption of compensating electrode body 1, last band-type brake 2 is held electrode body 1 tightly, following band-type brake 3 unclamps electrode body 1, band-type brake 3 rose with respect to electrode body 1 under elevating mechanism 5 drove then, synchronously, conductive mechanism rises with respect to electrode body 1, thereby following band-type brake 3 is held the more top position (electrode body 1 is held at the second place place that for example is higher than primary importance on electrode body 1 tightly) of electrode body 1 tightly, then, last band-type brake 2 unclamps electrode body 1, elevating mechanism 5 can drive down band-type brake 3 and electrode body 1 descends, and synchronously, conductive mechanism descends, because following band-type brake 3 higher position on electrode body 1 is held electrode body 1 tightly, therefore electrode body 1 can stretch into the length answer in the body of heater 300, has compensated the consumption of electrode body 1, will describe in further detail below.
Elevating mechanism 5 is installed on the fixed frame 6 and can rises and descend, in one embodiment of the invention, elevating mechanism 5 comprises lifting platform 51 and the hydraulic cylinder 52 that links to each other with lifting platform 51, for example, the cylinder body of hydraulic cylinder 52 is fixed on the fixed frame 6, piston rod links to each other with lifting platform 51, thereby hydraulic cylinder 52 actions can lifting lifting platform 51.The quantity of hydraulic cylinder 52 can be provided with as required, has illustrated two in Fig. 3 and 4, but also can be provided with 4 or 3, and the present invention for the quantity of hydraulic cylinder 52 without limits.Owing to adopt hydraulic cylinder 52, therefore the synchronism between a plurality of hydraulic cylinders 52 is controlled easily and is realized that the lifting of elevating mechanism 5 is more steady, thereby the lifting of electrode body 1 is also more steady.
Following band-type brake 3 is installed on the lifting platform 51 so that move with lifting platform 51.The conductive mechanism of electrode assembly 100 is arranged on down the below of band-type brake 3 and elevating mechanism 5, conductive mechanism is electrically connected with power supply (not shown) and electrode body 1, thereby to electrode body 1 power supply, simultaneously, conductive mechanism can also move with respect to electrode body 1 with elevating mechanism 5.More specifically, electrode body 1 by on band-type brake 2 maintain static and elevating mechanism 5 drive under band-type brake 3 when moving up with respect to electrode body 1, conductive mechanism can be with elevating mechanism 5 with respect to electrode body 1 same moved further, and the maximum length that can stretch in the body of heater 300 that electrode body 1 is exposed from conductive mechanism increases.
The further embodiment according to the present invention, electrode assembly 100 also comprises casing 7, casing 7 be enclosed within electrode body 1 outside and be positioned at elevating mechanism 5 below, the upper end of casing 7 links to each other so that can move with respect to electrode body 1 with elevating mechanism 5 with elevating mechanism 5, and the lower end of casing 7 links to each other with conductive mechanism, moves with respect to electrode body 1 with elevating mechanism 5 so that can drive conductive mechanism.
In one embodiment of the invention, shown in Fig. 3-5, conductive mechanism comprises mobile collector ring 10, brasses 12 and clamping part 15.
As shown in Figure 5, in one embodiment of the invention, hold assembly 15 comprises annular body 158, and annular body 158 is enclosed within brasses 12 outsides and by suspension rod 14 link to each other with casing 7 (with reference to figure 3 and Fig. 4).Circumferentially in annular body 158, be fixed with a plurality of fixed covers 150 along annular body 158.In each fixed cover 150, be provided with top 151, be used to promote corresponding sub-tile fragment.In addition, in each fixed cover 150, also be provided with push pedal 157 in the outside (right side among Fig. 5) of top 151.Be provided with elastic component 153 between push pedal 157 and top 151, elastic component 153 for example for the compression spring, is used for often pushing top 151 to brasses 12.In fixed cover 150, be provided with and regulate adjusting nut 156 in the outside (right side among Fig. 5) of push pedal 157, adjusting nut 156 cooperates with hold-down nut 155 in being fixed on fixed cover 150, can regulate the compression degree of elastic component 153 by adjusting nut 156, thereby regulate the elastic thrust of 153 pairs of tops 151 of elastic component, regulate the thrust of the corresponding sub-tile fragment of the 151 pairs of brasses 12 in top thus, the contact force of promptly having regulated the corresponding sub-tile fragment and the electrode body 1 of brasses 12.As shown in Figure 5, in an example of the present invention, on each sub-tile fragment of brasses 12, also be provided with top board 152 and between sub-tile fragment and top board 152, be provided with felt pad 154, for example, as shown in Figure 5, on the lateral wall of each sub-tile fragment of brasses 12, be formed with projection, form groove in the projection, top board 152 and felt pad 154 are arranged in the groove, thereby the top of hold assembly 15 151 promotes top board 152, thereby are not easy to damage brasses 12.
It will be appreciated that, hold assembly 15 is not limited to the structure in the above-mentioned concrete example, those of ordinary skill in the art can make amendment and modification to said structure, for example in fixed cover 150, directly form screwed hole, adjusting nut 156 is engaged in the screwed hole, and perhaps adjusting nut 156 also can be adjusting screw(rod) etc.
As mentioned above, because brasses 12 is divided into several separate sub-tile fragments, correspondingly, fixing a plurality of fixed covers 150 in the annular body 158 of hold assembly 15, each fixed cover 150 can be corresponding with a sub-tile fragment, that is, and and sub-tile fragment of top 151 roof pressures.Certainly, also can two fixed covers 150 corresponding with a sub-tile fragment, i.e. sub-tile fragment of two top 151 roof pressures, those of ordinary skill in the art can determine sub-tile fragment of several tops roof pressure according to concrete application.Because the sub-tile fragment of brasses 12 is by independently coming directly towards 151 roof pressures to electrode body 1, so the contact force of outer piece of each height and electrode body 1 do not influence each other, and can regulate separately, thereby more reliable to the power supply of electrode body 1.
According to one embodiment of present invention, in order further to improve power supply reliability to electrode body 1, electrode assembly also comprises fixedly collector ring 8, fixedly collector ring 8 for example is connected by flexible copper strips 9 with the power supply (not shown), simultaneously by compliant conductive spare 9, for example flexible copper strips is electrically connected with mobile collector ring 10.For example, in Fig. 3 and Fig. 4, fixedly collector ring 8 right sides link to each other with power supply by flexible copper strips 9, link to each other with mobile collector ring 10 and pass on left flexible copper strips 9.Fixedly collector ring 8 is fixed on the fixed frame 6, and is enclosed within the outside of electrode body 1 and casing 7, so that do not influence moving of electrode body 1 and conductive mechanism.
In the present invention, need to prove, fixed frame 6 should be made broad understanding, as shown in Figure 3, the bearing 4 of last band-type brake 2, elevating mechanism 5 and fixedly collector ring 8 all be fixed on the fixed frame 6, be used for bearing 4, elevating mechanism 5 and fixedly the fixed frame 6 of collector ring 8 can be a whole frame that is fixed on the ground, also can be a plurality of independent frames, or the part of factory building etc., as long as it can hold-down support 4, elevating mechanism 5 and fixedly collector ring 8 just can, for example, fixedly collector ring 8 can be hung in the factory building by suspension rod 16.
According to embodiments of the invention, last band-type brake 2 and following band-type brake 3 are respectively hydraulic contracting, for example go up band-type brake 2 by oil pipe 21 fuel feeding, and following band-type brake 3 adopts hydraulic contracting by oil pipe 31 fuel feeding, and the reliability height is easy to control.Certainly, last band-type brake 2 and following band-type brake 3 are not limited to hydraulic contracting, also can adopt other forms of band-type brake known in the art, for example electromagnetic brake.
Operation according to embodiment of the invention electric furnace is described below.
In the electric furnace operate as normal, the last band-type brake 2 of electrode assembly unclamps electrode body 1, and following band-type brake 3 is held electrode body 1 tightly.When the length in the working condition requirement adjusting electrode body 1 insertion body of heater 300, elevating mechanism 5 drives band-type brake 3 (driving electrode body 1 thus) lifting down, elevating mechanism 5 drives conductive mechanism (mobile collector ring 10, brasses 12 and clamping part 15) synchronization lifting by casing 7 simultaneously, length in the electrode body 1 insertion body of heater 300 is adjusted thus, has satisfied the operating mode needs.
Along with the use of electrode body 1, the lower end of electrode body 1 constantly consumes, thus electrode body 1 can to insert the maximum length limit of body of heater 300 little, therefore need be with respect to band-type brake 3 (being elevating mechanism 5) and conductive mechanism integral body move down electrode body 1 down.At this moment, last band-type brake 2 is held electrode body 1 tightly, following band-type brake 3 unclamps electrode body 1, then, elevating mechanism 5 drives band-type brake 3 and conductive mechanism (mobile collector ring 10 down, brasses 12 and clamping part 15) with respect to conductive mechanism (mobile collector ring 10, brasses 12 and clamping part 15) 1 rising, instantly after band-type brake 3 arrives suitable position (position of consumption that for example can compensating electrode body 1), elevating mechanism 5 stops to rise, following band-type brake 3 is held electrode body 1 tightly, last band-type brake 2 unclamps electrode body 1, conductive mechanism is also with respect to moving on the electrode body 1 simultaneously, and on conductive mechanism, move past in the journey, brasses 12 contacts with electrode body 1 all the time simultaneously and upwards slides with respect to electrode body 1 by suspension rod 13, and mobile collector ring 10 moves up with respect to electrode body 1 with casing 7, and clamping part 15 upwards slides with respect to electrode body 1 by suspension rod 14, thereby need not to pull down conductive mechanism.Thus, compensated the consumption of electrode body 1, electrode body 1 can insert the length of body of heater 300 and reply.
Thus, under the driving of elevating mechanism 5, following band-type brake 3 is held electrode body 1 tightly and is moved up and down the length of regulating in the electrode body 1 insertion body of heater 300 according to the operating mode needs.
When electrode body 1 consumes when a certain amount of once more, can repeat aforesaid operations.
Therefore according to electric furnace of the present invention, electrode assembly can be easily with respect to elevating mechanism 5 and conductive mechanism traveling electrode body 1, and the consumption of compensating electrode body 1 need not blowing out, and is then simple to operate, and efficient improves, and cost is low.
In the above among the embodiment of Miao Shuing, conductive mechanism by linking to each other with elevating mechanism 5 with elevating mechanism 5 and following band-type brake 3 with respect to electrode body 1 same moved further, need to prove, conductive mechanism also can by independent elevating mechanism drive and with elevating mechanism 5 with respect to electrode body 1 same moved further, be not described in detail here.
Other formations, structure and operation according to the electric furnace of the embodiment of the invention can be identical with traditional electric furnace, are not described in detail here.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple variation, modification, replacement and modification to these embodiment without departing from the principles and spirit of the present invention, scope of the present invention is limited by claim and equivalent thereof.
Claims (10)
1. an electric furnace is characterized in that, comprising: body of heater and the electrode assembly that is arranged on the body of heater top, and described electrode assembly has electrode body, and described electrode body stretches into body of heater and removable along the vertical direction; Hold and unclamp the last band-type brake of electrode body tightly; Hold and unclamp the following band-type brake of described electrode body tightly, described band-type brake down is positioned at the band-type brake below; Elevating mechanism, wherein said band-type brake down are installed on the described elevating mechanism to move with described elevating mechanism; And conductive mechanism, described conductive mechanism and electrode body electrically contact and can with elevating mechanism with respect to the same moved further of electrode body.
2. electric furnace according to claim 1 is characterized in that, described conductive mechanism comprises: brasses, and described brasses electrically contacts with electrode body and links to each other with elevating mechanism; And clamping part, described clamping part is pressed to brasses on the electrode body and with elevating mechanism and links to each other.
3. electric furnace according to claim 2 is characterized in that, described conductive mechanism comprises and further comprise mobile collector ring that described mobile collector ring is electrically connected with brasses by compliant conductive spare and links to each other with elevating mechanism.
4. electric furnace according to claim 3, it is characterized in that, described electrode assembly further comprises the casing that is enclosed within the electrode body outside, described casing is positioned at below the elevating mechanism and with elevating mechanism and links to each other to move with respect to electrode body with elevating mechanism, wherein said mobile collector ring is fixed on the outer surface of casing, and described brasses links to each other with casing by suspension rod respectively with clamping part.
5. electric furnace according to claim 4 is characterized in that, described hold assembly comprises: annular body, described annular body are enclosed within the brasses outside and link to each other with casing by suspension rod; Circumferentially be fixed on a plurality of fixed covers in the annular body along annular body; Be arranged on the top in each fixed cover; Be arranged on the push pedal in each fixed cover; Be arranged between push pedal and the top and will come directly towards the elastic component of often pushing top board to; With the adjusting nut that is arranged on adjusting elastic component thrust in each fixed cover.
6. electric furnace according to claim 5 is characterized in that, described brasses is split type.
7. electric furnace according to claim 3 is characterized in that described electrode assembly further comprises fixedly collector ring, and described fixedly collector ring is suitable for being connected with power supply and being electrically connected with mobile collector ring by compliant conductive spare.
8. electric furnace according to claim 7 is characterized in that described compliant conductive spare is flexible copper strips.
9. electric furnace according to claim 1 is characterized in that, the described band-type brake of going up is respectively hydraulic contracting with following band-type brake.
10. according to each described electric furnace among the claim 1-9, it is characterized in that described elevating mechanism comprises that lifting platform drives the hydraulic cylinder of lifting platform lifting with linking to each other with lifting platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810246888A CN101769679A (en) | 2008-12-30 | 2008-12-30 | Electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810246888A CN101769679A (en) | 2008-12-30 | 2008-12-30 | Electric furnace |
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| CN101769679A true CN101769679A (en) | 2010-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810246888A Pending CN101769679A (en) | 2008-12-30 | 2008-12-30 | Electric furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829644A (en) * | 2012-08-31 | 2012-12-19 | 朱兴发 | Electrode lifting and rotary stirring device in electromagnetic-induction mineral slag smelting furnace |
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2008
- 2008-12-30 CN CN200810246888A patent/CN101769679A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829644A (en) * | 2012-08-31 | 2012-12-19 | 朱兴发 | Electrode lifting and rotary stirring device in electromagnetic-induction mineral slag smelting furnace |
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Application publication date: 20100707 |