CN215668086U - Magnetic scrap steel preheating type electric arc furnace - Google Patents
Magnetic scrap steel preheating type electric arc furnace Download PDFInfo
- Publication number
- CN215668086U CN215668086U CN202122038653.7U CN202122038653U CN215668086U CN 215668086 U CN215668086 U CN 215668086U CN 202122038653 U CN202122038653 U CN 202122038653U CN 215668086 U CN215668086 U CN 215668086U
- Authority
- CN
- China
- Prior art keywords
- scrap
- preheating
- scrap steel
- electric arc
- horizontal continuous
- Prior art date
- 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.)
- Active
Links
Images
Classifications
-
- 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
- Y02P10/20—Recycling
Landscapes
- Furnace Details (AREA)
Abstract
The utility model relates to a magnetic scrap steel preheating type electric arc furnace which comprises a horizontal continuous feeding preheating section and an electric furnace molten pool, wherein a magnetic suspension scrap steel structure is arranged above the horizontal continuous feeding preheating section, the magnetic suspension scrap steel structure comprises an H-shaped groove body structure capable of being turned over up and down, the H-shaped groove body structure is used for suspending scrap steel above the horizontal continuous feeding preheating section for preheating and throwing the preheated scrap steel onto the horizontal continuous feeding preheating section, and the horizontal continuous feeding preheating section can convey the preheated scrap steel into the electric furnace molten pool. According to the utility model, the scrap steel is magnetically suspended above the horizontal continuous feeding preheating section for preheating, so that the dynamic condition of convective heat transfer of the scrap steel and flue gas is greatly improved, and the scrap steel preheating effect is improved.
Description
Technical Field
The utility model relates to the technical field of steelmaking, in particular to a magnetic scrap preheating type electric arc furnace.
Background
Electric furnace steelmaking is a steelmaking process mainly taking scrap steel as a raw material, and an ironmaking system is not required to be built, so the electric furnace steelmaking is also called as a short-process steelmaking technology. At present, compared with a long process of a blast furnace converter, the emission of the pollutants in short-process steelmaking of an electric furnace is reduced by about 60 percent, and the method is more environment-friendly. But the production cost of the electric furnace steelmaking is higher than that of the converter at present, so that the competitiveness of the electric furnace steelmaking technology is weakened, and the rapid promotion of the electric furnace steelmaking proportion is seriously hindered. The scrap steel preheating type electric furnace directly preheats the scrap steel by using high-temperature flue gas generated in the electric furnace smelting process, can reduce the power consumption per ton of steel by 20-100 kWh/t, has very strong energy-saving and cost-reducing effects, and becomes a hotspot technology for developing the electric furnace steelmaking process at present.
The most basic technical route developed in domestic and foreign scrap preheating electric arc furnaces for 30 years is based on the direction of preheating the scrap by the flue gas of the electric furnace, and a horizontal continuous scrap preheating electric furnace (as shown in figure 1) represented by Consteel and a shaft type preheating electric arc furnace represented by a quantum electric furnace are developed.
At present, the Consteel electric furnace has a plurality of application performances because the thermal load of a charging device is lower, the failure rate of equipment is low, and the risk of water leakage failure does not exist. But the furnace type is to add scrap steel into the furnace by a horizontal vibration device. The horizontal vibration device is divided into a charging section (without a cover) and a preheating section (with a cover). In the feeding section area, the scrap steel is adsorbed by the scrap steel across a magnetic disk of the crown block and is added onto a horizontal vibration device, and then the scrap steel enters a preheating section under the driving of horizontal vibration. In the preheating section, the scrap steel is horizontally laid on the horizontal vibration device (the bottom area of the preheating section) due to the action of gravity, and high-temperature flue gas passes through the top of the preheating section, so that the convection heat exchange between the high temperature and the scrap steel is insufficient, the preheating effect is poor, the average preheating temperature of the scrap steel is 200 ℃, the power consumption per ton of steel is saved by 20-30 kWh/t, the energy-saving effect is not obvious, and the power consumption per ton of steel is 350kWh/t under the condition of 100% of scrap steel raw materials.
The shaft type preheating electric arc furnace has the advantages that the shaft is arranged right above the furnace shell, the finger valve at the bottom of the shaft has high thermal load strength, the problems of finger water leakage, material clamping, steel sticking, environmental protection and the like exist after the technology is applied, and domestic and foreign steel mills begin to stop using.
Therefore, the inventor provides a magnetic scrap preheating type electric arc furnace by virtue of experience and practice of related industries for many years so as to overcome the defects in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a magnetic scrap preheating type electric arc furnace, wherein scrap is magnetically suspended above a horizontal continuous feeding preheating section for preheating, so that the dynamic condition of convective heat transfer of the scrap and flue gas is greatly improved, and the scrap preheating effect is improved.
The utility model aims to realize the magnetic scrap steel preheating type electric arc furnace, which comprises a horizontal continuous feeding preheating section and an electric furnace molten pool, wherein a magnetic suspension scrap steel structure is arranged above the horizontal continuous feeding preheating section, the magnetic suspension scrap steel structure comprises an H-shaped groove body structure capable of being turned over up and down, the H-shaped groove body structure is used for suspending scrap steel above the horizontal continuous feeding preheating section for preheating and throwing the suspended preheated scrap steel onto the horizontal continuous feeding preheating section, and the horizontal continuous feeding preheating section is used for continuously heating the suspended preheated scrap steel and conveying the preheated scrap steel into the electric furnace molten pool.
In a preferred embodiment of the utility model, a first material groove and a second material groove which are mutually isolated are formed in the H-shaped groove body structure, and the opening of the first material groove or the second material groove faces to the horizontal continuous feeding preheating section; the magnetic bodies are arranged on the groove walls of the first material groove and the second material groove, and can adsorb the steel scraps in the first material groove and the second material groove and stop adsorbing the steel scraps in the first material groove and the second material groove.
In a preferred embodiment of the utility model, a partition plate is arranged between the first material tank and the second material tank, a horizontal turnover shaft penetrates through the partition plate, a first end of the turnover shaft is hinged in the supporting seat, and a second end of the turnover shaft is connected with a turnover driving structure; the magnet is arranged in the clapboard.
In a preferred embodiment of the present invention, the turning driving structure is a hydraulic driving structure.
In a preferred embodiment of the present invention, the flipping driving structure is a motor driving structure.
In a preferred embodiment of the present invention, the supporting seat is fixedly disposed, a bearing is disposed in the supporting seat, and the first end of the turning shaft is inserted into the bearing.
In a preferred embodiment of the present invention, the magnet is an electromagnet, the electromagnet is electrically connected to a power supply, the electromagnet can adsorb the steel scraps in the first material tank and the second material tank when the electromagnet is powered on, and the electromagnet can stop adsorbing the steel scraps in the first material tank and the second material tank when the electromagnet is powered off.
In a preferred embodiment of the present invention, a shaft through hole is axially formed in the trip shaft, and a cooling liquid channel and an electromagnet cable channel are formed in the shaft through hole.
In a preferred embodiment of the present invention, the magnet is a permanent magnet.
In a preferred embodiment of the present invention, the horizontal continuous feeding preheating section is provided with a scrap preheating channel extending upward, the top of the scrap preheating channel is provided with an opening, and the H-shaped groove structure can magnetically attract the scrap to suspend in the scrap preheating channel.
Therefore, the magnetic scrap preheating type electric arc furnace provided by the utility model has the following beneficial effects:
according to the magnetic scrap preheating type electric arc furnace, a magnetic attraction suspension scrap structure is arranged above a horizontal continuous feeding preheating section by utilizing a magnetic attraction principle, scrap steel is magnetically attracted to be preheated in a 'suspension' mode, the dynamic condition of convective heat exchange of the scrap steel and smoke is greatly improved, the scrap steel preheating effect is improved, the scrap steel falls to the horizontal continuous feeding preheating section after the magnetic attraction is stopped, the scrap steel can be in close contact with high-temperature smoke in the feeding process to be further preheated, and the scrap steel proportion in contact with the high-temperature smoke is improved; the preheated scrap steel is continuously added into the electric furnace molten bath in small batches, and the electric furnace is not required to be powered off in the process of adding the scrap steel.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:
FIG. 1: is a schematic diagram of a magnetic scrap preheating type electric arc furnace of the present invention.
FIG. 2: is a cross-sectional view a-a in fig. 1.
FIG. 3: is a cross-sectional view B-B in FIG. 1.
FIG. 4: is a schematic diagram of the H-shaped groove structure of the utility model.
In the figure:
100. magnetically attracting a scrap preheating type electric arc furnace;
1. a horizontal continuous feeding preheating section; 11. a preheating section feeding trough; 12. a scrap preheating channel;
2. an electric furnace molten pool;
3. magnetically attracting the suspended scrap steel structure;
31. h-shaped groove body structure; 311. a first trough; 312. a second trough; 313. a sealing structure; 32. a partition plate; 33. a turning shaft; 34. a turnover driving structure; 35. a supporting seat; 36. a magnet;
4. scrap steel;
5. hoisting equipment;
6. an electromagnetic disk.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings.
The specific embodiments of the present invention described herein are for the purpose of illustration only and are not to be construed as limiting the utility model in any way. Any possible variations based on the present invention may be conceived by the skilled person in the light of the teachings of the present invention, and these should be considered to fall within the scope of the present invention. It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, mechanical or electrical connections, communications between two elements, direct connections, indirect connections through intermediaries, and the like. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 4, the present invention provides a magnetic scrap preheating type electric arc furnace 100, which comprises a horizontal continuous feeding preheating section 1 (prior art) and an electric furnace molten pool 2, wherein the horizontal continuous feeding preheating section 1 adopts the existing scrap preheating continuous feeding equipment, the scrap preheating continuous feeding equipment is a scrap conveying system between a scrap yard and an electric furnace, and online preheated scrap can be continuously fed into the electric furnace molten pool 2 through preheating, so that continuous feeding, continuous scrap preheating and continuous scrap melting are realized; the horizontal continuous charging preheating section 1 adopts high-temperature flue gas generated in the electric furnace smelting process as a heating source;
the magnetic suspension scrap steel structure 3 is arranged above the horizontal continuous feeding preheating section 1, the magnetic suspension scrap steel structure 3 comprises an H-shaped groove structure 31 capable of being turned over up and down, the H-shaped groove structure 31 can suspend scrap steel 4 above the horizontal continuous feeding preheating section 1 for preheating and can throw the suspended preheated scrap steel down to the horizontal continuous feeding preheating section 1, and the horizontal continuous feeding preheating section 1 is used for continuously heating the suspended preheated scrap steel and conveying the preheated scrap steel to an electric furnace molten pool 2.
In the magnetic scrap preheating type electric arc furnace 100, scrap can be preheated to 400-600 ℃, and the power consumption per ton of steel can be reduced by 60-80 kWh/t.
According to the magnetic scrap preheating type electric arc furnace, a magnetic attraction suspension scrap structure is arranged above a horizontal continuous feeding preheating section by utilizing a magnetic attraction principle, scrap steel is magnetically attracted to be preheated in a 'suspension' mode, the dynamic condition of convective heat exchange of the scrap steel and smoke is greatly improved, the scrap steel preheating effect is improved, the scrap steel falls to the horizontal continuous feeding preheating section after the magnetic attraction is stopped, the scrap steel can be in close contact with high-temperature smoke in the feeding process to be further preheated, and the scrap steel proportion in contact with the high-temperature smoke is improved; the preheated scrap steel is continuously added into the electric furnace molten bath in small batches, and the electric furnace is not required to be powered off in the process of adding the scrap steel.
Further, as shown in fig. 1, 2 and 4, a first trough 311 and a second trough 312 which are isolated from each other are formed in the H-shaped trough structure 31, and an opening of the first trough 311 or the second trough 312 is arranged towards the horizontal continuous feeding preheating section; the magnetic bodies 36 are arranged on the groove walls (including the bottom wall of the groove and the two side walls of the groove) of the first groove 311 and the second groove 312, and can adsorb the steel scraps 4 in the first groove 311 and the second groove 312 and stop adsorbing the steel scraps (steel scraps falling) in the first groove 311 and the second groove 312.
Of the first trough 311 and the second trough 312, 1 is open upward and 1 is open downward. First silo 311 or second silo 312 that the opening is up can carry out the batching (load the scrap steel through hoisting equipment 5 and electromagnetic disc 6 of top, also can load the scrap steel through other batching dollies or chain trigger), after having prepared more than 50% of the required total furnace charge of every stove, rotate 180 degrees (upset from top to bottom) with H type groove structure 31, because be equipped with the magnet in the H type groove structure 31 and adsorb the scrap steel, so after H type groove structure 31 overturns 180 degrees, the scrap steel still can be adsorbed in first silo 311 or second silo 312, the scrap steel that has prepared in original first silo 311 or second silo 312 rotates to the top of the continuous reinforced preheating section 1 of level and carries out "hanging" and preheats. Compared with the original Consteel preheating device, the waste steel which is originally laid at the bottom of the Consteel preheating section can be adsorbed by the magnet above to be hung, so that the dynamic condition of convective heat transfer of the waste steel and the flue gas is greatly improved, and the waste steel preheating effect is improved; meanwhile, the H-shaped groove body structure 31 rotates to the part with the upward opening, and then the next material preparation can be carried out, so that the working efficiency is improved.
Further, as shown in fig. 1 and 4, a partition plate 32 is disposed between the first trough 311 and the second trough 312, a horizontal turning shaft 33 penetrates through the partition plate 32, a first end of the turning shaft 33 is hinged in the supporting seat 35, and a second end of the turning shaft 33 is connected with the turning driving structure 34. The partition plate 32 has two end surfaces forming bottoms of the first trough 311 and the second trough 312, respectively, and the magnet 36 is provided in the partition plate 32.
Further, the turnover driving mechanism 34 may be a hydraulic driving mechanism or a motor driving mechanism. The H-shaped groove structure 31 can be overturned by 180 degrees under the driving of the overturning driving structure.
Further, the supporting seat 35 is fixedly arranged, a bearing is arranged in the supporting seat, and the first end of the turnover shaft 33 penetrates through the bearing.
Further, the magnet is an electromagnet or a permanent magnet. When the magnet is the electro-magnet, the electro-magnet is installed on baffle 32 and the lateral wall of H type cell structure 31, and the electro-magnet is connected with the power electricity, can adsorb steel scrap 4 in first silo 311 and the second silo 312 when the electro-magnet circular telegram, can stop adsorbing the steel scrap in first silo and the second silo when the electro-magnet outage. Batching (loading scrap steel) in first silo 311 (or second silo 312), the electro-magnet circular telegram, upset drive structure drive H type cell structure 31 upset 180 degrees, the scrap steel suspension preheats, batching in second silo 312 (or first silo 311) simultaneously, the scrap steel suspension preheats and cuts off the power supply after about 6 minutes, the scrap steel falls into on the continuous reinforced preheating section of level 1 of below (in the horizontal feed tank, prior art) in first silo 311, the horizontal feed tank is under the drive of vibration exciter (prior art, for the continuous reinforced preheating section of level 1's component structure), in continuously adding electric stove molten bath 2 with the scrap steel, at the in-process of adding, the scrap steel can be further preheated with high temperature flue gas in close contact with again.
Further, a shaft through hole is axially formed in the overturning shaft 33, and a cooling liquid channel and an electromagnet cable channel are formed in the shaft through hole. In a specific embodiment of the present invention, the electromagnet is a self-cooling electromagnet, and the electromagnet is cooled by cooling water or liquid metal (mixed by low melting point metals such as tin, lead, etc.) in the cooling liquid channel.
When the magnet is a permanent magnet, the scrap steel can automatically fall onto the horizontal continuous feeding preheating section 1 when being preheated to about 600 ℃, so that power supply to the magnet is not needed.
Further, as shown in fig. 1, 2 and 3, the horizontal continuous feeding preheating section is provided with a scrap preheating channel 12 extending upward, the top of the scrap preheating channel 12 is open, and the H-shaped groove structure 31 can magnetically attract the scrap to suspend in the scrap preheating channel. The scrap steel preheating channel 12 is internally provided with a concave channel meeting the turning of the H-shaped groove body structure 31, and in order to prevent the flue gas from overflowing in the preheating process, the outer wall of the H-shaped groove body structure 31 is provided with a sealing structure 313 capable of sealing the concave channel.
Further, as shown in fig. 1, a preheating section feeding trough 11 is arranged at one end of the horizontal continuous feeding preheating section 1 close to the electric furnace molten pool, and the fully preheated scrap steel on the horizontal continuous feeding preheating section is uninterruptedly conveyed into the electric furnace molten pool through the preheating section feeding trough 11.
The magnetic scrap preheating electric arc furnace 100 of the present invention is used as follows:
firstly, the first material tank 311 (or the second material tank 312) is filled with materials (loaded with scrap steel), after more than 50% of total furnace charge required by each furnace is prepared, the electromagnet is electrified, the overturning driving structure drives the H-shaped groove body structure 31 to overturn 180 degrees, the scrap steel is suspended in the scrap steel preheating channel to be preheated, meanwhile, the second material tank 312 (or the first material tank 311) is filled with materials, the scrap steel is suspended and preheated for about 6 minutes and then is powered off, the scrap steel in the first material tank 311 falls onto the horizontal continuous feeding preheating section 1 below (in the horizontal feeding tank, the prior art), the horizontal feeding tank is driven by a vibration exciter (in the prior art, the horizontal continuous feeding preheating section 1 is a composition structure), the scrap steel is continuously added into the electric furnace molten pool 2, and in the adding process, the scrap steel can be further preheated by being in close contact with high-temperature smoke.
The preheated scrap steel is continuously added into the electric furnace molten pool 2 in small batches, the electric furnace is not required to be powered off in the scrap steel adding process, the whole process of flat molten pool smelting of the electric furnace is realized, the whole process of flat molten pool smelting can be blown with oxygen and sprayed with carbon to increase the content of carbon monoxide in the flue gas, so that the flue gas has higher flue gas temperature after secondary combustion, the scrap steel preheating temperature is increased, and the energy saving effect is remarkable.
Therefore, the magnetic scrap preheating type electric arc furnace provided by the utility model has the following beneficial effects:
according to the magnetic scrap preheating type electric arc furnace, a magnetic attraction suspension scrap structure is arranged above a horizontal continuous feeding preheating section by utilizing a magnetic attraction principle, scrap steel is magnetically attracted to be preheated in a 'suspension' mode, the dynamic condition of convective heat exchange of the scrap steel and smoke is greatly improved, the scrap steel preheating effect is improved, the scrap steel falls to the horizontal continuous feeding preheating section after the magnetic attraction is stopped, the scrap steel can be in close contact with high-temperature smoke in the feeding process to be further preheated, and the scrap steel proportion in contact with the high-temperature smoke is improved; the preheated scrap steel is continuously added into the electric furnace molten bath in small batches, and the electric furnace is not required to be powered off in the process of adding the scrap steel.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the utility model should fall within the protection scope of the utility model.
Claims (10)
1. The utility model provides a scrap steel preheats type electric arc furnace is inhaled to magnetism, includes horizontal continuous feeding preheating section and electric stove molten bath, its characterized in that, the top of horizontal continuous feeding preheating section sets up magnetism and inhales suspension scrap steel structure, magnetism is inhaled suspension scrap steel structure and is included the H type cell structure that can overturn from top to bottom, H type cell structure is used for suspending in the top of horizontal continuous feeding preheating section preheats and can preheat the back scrap steel with the suspension and throw down to horizontal continuous feeding preheating section on, horizontal continuous feeding preheating section is used for continuing to heat up and carry the scrap steel after preheating to the electric stove molten bath with the suspension.
2. The magnetically attracted scrap preheating type electric arc furnace of claim 1, wherein the H-shaped trough structure has a first trough and a second trough formed therein and separated from each other, the first trough or the second trough having an opening facing the horizontal continuous feed preheating section; the magnetic bodies are arranged on the groove walls of the first material groove and the second material groove, and can adsorb the steel scraps in the first material groove and the second material groove and stop adsorbing the steel scraps in the first material groove and the second material groove.
3. The magnetically-attracted scrap preheating-type electric arc furnace of claim 2, wherein a partition is disposed between the first chute and the second chute, a horizontal trip shaft is disposed through the partition, a first end of the trip shaft is hinged to the support base, and a second end of the trip shaft is connected to the trip driving structure; the magnet is arranged in the clapboard.
4. The magnetically attracted scrap preheating type electric arc furnace of claim 3 wherein the tumble drive mechanism is a hydraulic drive mechanism.
5. The magnetically attracted scrap preheating type electric arc furnace of claim 3 wherein the tumble drive mechanism is a motor drive mechanism.
6. The magnetically attracted scrap preheating type electric arc furnace of claim 3 wherein the support base is fixedly mounted, a bearing is mounted within the support base, and the first end of the trip shaft is received within the bearing.
7. The magnetically attracted scrap preheating type electric arc furnace of claim 3, wherein the magnet is an electromagnet, the electromagnet is electrically connected to a power source, the electromagnet is capable of attracting the scrap in the first and second troughs when energized, and the electromagnet is capable of ceasing to attract the scrap in the first and second troughs when de-energized.
8. The magnetically attracted scrap preheating type electric arc furnace of claim 7, wherein the trip shaft is axially provided with a shaft through hole, and the shaft through hole is provided with a coolant passage and an electromagnet cable passage.
9. The magnetically attracted scrap preheating type electric arc furnace of claim 3 wherein the magnets are permanent magnets.
10. The magnetically attracted scrap preheating type electric arc furnace of claim 2 wherein the horizontal continuous feed preheating section has an upwardly extending scrap preheating channel with an open top, the H-shaped trough structure being adapted to magnetically attract scrap to suspend it within the scrap preheating channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122038653.7U CN215668086U (en) | 2021-08-26 | 2021-08-26 | Magnetic scrap steel preheating type electric arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122038653.7U CN215668086U (en) | 2021-08-26 | 2021-08-26 | Magnetic scrap steel preheating type electric arc furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215668086U true CN215668086U (en) | 2022-01-28 |
Family
ID=79956599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122038653.7U Active CN215668086U (en) | 2021-08-26 | 2021-08-26 | Magnetic scrap steel preheating type electric arc furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215668086U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113502368A (en) * | 2021-08-26 | 2021-10-15 | 中冶京诚工程技术有限公司 | Magnetic scrap steel preheating type electric arc furnace |
-
2021
- 2021-08-26 CN CN202122038653.7U patent/CN215668086U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113502368A (en) * | 2021-08-26 | 2021-10-15 | 中冶京诚工程技术有限公司 | Magnetic scrap steel preheating type electric arc furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215668086U (en) | Magnetic scrap steel preheating type electric arc furnace | |
| CN113502368A (en) | Magnetic scrap steel preheating type electric arc furnace | |
| CN201867056U (en) | Combined furnace for nonferrous metallurgy | |
| CN108866270A (en) | A kind of steelmaking equipment | |
| CN204514032U (en) | A kind of all hot melt aluminium stoves | |
| CN201662331U (en) | Electric furnace charging and preheating device | |
| CN108624739B (en) | Steelmaking equipment and smelting method for steelmaking by using scrap steel | |
| CN208472142U (en) | A kind of steelmaking equipment | |
| CN215593113U (en) | Magnetic scrap steel preheating type electric arc furnace | |
| US5479435A (en) | DC arc furnace | |
| CN109696052A (en) | A kind of combined type continuous feeding | |
| CN113512623B (en) | Magnetic scrap preheating type electric arc furnace | |
| CN209024583U (en) | A kind of double-station electric arc furnaces | |
| CN209655815U (en) | A kind of combined type continuous feeding | |
| US10989475B2 (en) | Systems and methods to preheat ferromagnetic scrap | |
| CN208472141U (en) | A kind of steelmaking equipment | |
| CN208362393U (en) | A kind of shaft cross sliding type electric arc furnaces | |
| CN106011496A (en) | Double-area molten pool smelting furnace and lead and tin co-smelting smelting method thereof | |
| CN102653803A (en) | Short-flow method for reducing iron through two-step melting | |
| CN114234655B (en) | Scrap steel preheating system and preheating method | |
| CN207831945U (en) | A kind of industrial furnace for smelting slag composition adjustment | |
| CN216337779U (en) | Continuous vertical shaft scrap steel preheating device and electric furnace steelmaking equipment | |
| CN205027150U (en) | Mixer is smelted outward to ferroalloy electric stove stove | |
| JPH0643675Y2 (en) | Recovery device for sensible heat of molten slag in electric furnace | |
| CN204111835U (en) | Ore reduces continuously and send steel-smelting device with heat |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |