CN217358025U - Ultrashort-distance power supply and closed double-body lifting type electric arc furnace - Google Patents
Ultrashort-distance power supply and closed double-body lifting type electric arc furnace Download PDFInfo
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- CN217358025U CN217358025U CN202220451113.3U CN202220451113U CN217358025U CN 217358025 U CN217358025 U CN 217358025U CN 202220451113 U CN202220451113 U CN 202220451113U CN 217358025 U CN217358025 U CN 217358025U
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Abstract
The utility model relates to a non-metallic ore smelts production technical field, specifically is an ultrashort apart from power supply, airtight binary over-and-under type electric arc furnace. The electric arc furnace comprises: the device comprises an electrode lifting device, an electrode, a power supply ultra-short net, a power supply, an electrode holder, a distributing device, a furnace cover, a lifting furnace bottom, an inner furnace liner, a heat preservation outer furnace body, a smelting furnace trolley, a hydraulic lifting device, a trolley track, a hydraulic device bottom platform, smelting furnace trolley wheels, a smelting positioner, a lifting tray hole and a material supplementing positioner, wherein a hydraulic lifting tray is arranged, and a smelting finished product falls dynamically to realize positioning smelting; the reduction of the smelting furnace chamber, the full-closed smelting and the adjustable temperature of the smelting furnace are realized through the combination and the lifting of the heat-insulating double furnace bodies; the limitation of the lifting amplitude of the electrode is realized by the micro-lifting operation process of the electrode, the ultra-short distance power supply and the electrode shortening are achieved, the furnace temperature is effectively increased, the furnace condition is improved, the smelting efficiency is improved, the product quality is improved, the energy is greatly saved, the consumption is reduced, and the electrode is closed and environment-friendly.
Description
The technical field is as follows:
the utility model relates to a non-metallic ore smelts production technical field, specifically is an ultrashort apart from power supply, airtight binary over-and-under type electric arc furnace.
Background art:
at present, a non-metal ore smelting electric arc furnace is a smelting mode that an electrode is lifted upwards from the bottom smelting, and belongs to ultra-high temperature smelting. The main facilities include transformer, power supply copper stranded wire (large braid), conductive large arm, electrode holder, electrode lifting system, etc. The disadvantages are as follows: (1) the length of the electrode in the furnace is long; (2) the power supply copper stranded wires and the large conductive arms which rise and fall along with the electrodes enable the power supply distance to be too far, so that the problems of large impedance, magnetic loss, low power factor, high energy consumption and the like are caused; (3) the upper part of the furnace cover is provided with a complex and inconvenient automatic material distribution system; (4) the related facilities of the smelting furnace are more, the consumption of copper materials is large, and the equipment investment is high; (5) the smelting process has unstable furnace conditions and large process variation range, and the furnace condition environment cannot be adjusted.
The problem of large-size ultra-short network power supply cannot be solved no matter a transformer power supply is adopted to be close to a furnace body or a large arm is improved, and due to the fact that the electrode is too long, energy consumption is increased, stability of a furnace and an ore is affected, production accidents are caused due to frequent breakage of the electrode, and the electrode is inconvenient to install.
The utility model has the following contents:
to the problem, an object of the utility model is to provide an ultrashort apart from power supply, airtight binary over-and-under type electric arc furnace, this electric arc furnace is rational in infrastructure, can fix a position and smelt, and the accurate control arc of little lift flows the arc voltage and changes, forms the short distance and smelts the field, has promoted product quality, has reduced the energy consumption.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an ultra short distance powered, enclosed twin-mass, elevating electric arc furnace comprising: electrode elevating gear (1), electrode (2), power supply ultrashort net (3), power (4), electrode holder (5), distributing device (6), bell (7), lift stove bottom (8), inner furnace (9), heat preservation outer furnace body (10), smelting pot platform truck (11), hydraulic pressure elevating gear (12), platform truck track (13), hydraulic means bottom (14), smelting pot platform truck wheel (15), smelt locator (16), lift tray (17), lift tray hole (18), feed supplement locator (19), concrete structure is as follows:
the furnace body is of a double-furnace-body structure combining an inner furnace (9) and a heat-preservation outer furnace body (10), the furnace body is characterized in that the inner furnace (9) is positioned on the inner side of the heat-preservation outer furnace body (10) and is coaxial with the heat-preservation outer furnace body (10), a heat-preservation and heat-insulation cavity is formed between the inner furnace (9) and the heat-preservation outer furnace body (10), an electric smelting magnesium chamber is arranged in the inner cavity of the inner furnace (9), a furnace cover (7) is installed at the top of the heat-preservation outer furnace body (10), a material distribution device (6) is installed at the top of the furnace cover (7), three electrodes (2) are vertically inserted into the furnace cover (7), the upper end of each electrode (2) is connected with an electrode lifting device (1), and the lower end of each electrode (2) extends into the inner furnace (9); each electrode (2) is sleeved with an electrode holder (5), and the electrode holders (5) are connected with a power supply (4) through a power supply ultra-short network (3);
a lifting furnace bottom (8) is horizontally arranged in an inner furnace (9), a hydraulic device bottom table (14) corresponding to the lifting furnace bottom (8) is arranged below the furnace body, a hydraulic lifting device (12) is arranged on the hydraulic device bottom table (14), a lifting tray (17) at the upper end of the hydraulic lifting device (12) corresponds to the bottom of the lifting furnace bottom (8), the hydraulic lifting device (12) drives the lifting furnace bottom (8) to move up and down through the lifting tray (17), and the side surface of the lifting furnace bottom (8) is in sliding fit with the inner wall of the inner furnace (9) in sealing contact; a material supplementing positioner (19) and a smelting positioner (16) are arranged on the upper part of the inner wall of the inner furnace (9), the material supplementing positioner (19) and the smelting positioner (16) are arranged up and down, the material supplementing positioner (19) corresponds to the upper limit of the distribution of non-metal ores, and the smelting positioner (16) corresponds to the position of the lifting furnace bottom (8) during smelting;
the furnace body is arranged on a furnace trolley (11), four furnace trolley wheels (15) arranged at the bottom of the furnace trolley (11) are matched with two trolley rails (13), and the furnace body is driven to move by the furnace trolley (11); the melting furnace trolley (11) is of a hollow structure, a lifting tray hole (18) corresponding to the lifting tray (17) is formed in the melting furnace trolley, and the hydraulic lifting device (12) drives the lifting tray (17) to descend and move out of the furnace body as required.
The ultra-short distance power supply and closed double-body lifting electric arc furnace is characterized in that an inner furnace (9) is of a grid structure, and a heat-insulating outer furnace body (10) is formed by compounding refractory heat-insulating bricks and steel plates.
The electrode lifting device (1) is a steel wire rope driving device, and the electrode (2) is controlled to slightly lift through the electrode lifting device (1) so as to accurately control the arc current and arc voltage changes.
The ultra-short distance power supply and closed double-body lifting type electric arc furnace is characterized in that the furnace cover (7) is a closed furnace cover, the material distribution device (6) is of a pipeline type material distribution structure, and pipeline type material distribution exhaust holes and electrode holes are formed in the furnace cover (7).
The electric arc furnace with the ultra-short distance power supply and the closed double-body lifting type is characterized in that a hydraulic rod is adopted by a hydraulic lifting device (12), a lifting furnace bottom (8) is lifted up and down along the inner edge of an inner furnace pipe (9), and the lower part of the lifting furnace bottom (8) is driven and supported by the hydraulic rod.
According to the ultra-short distance power supply and closed double-body lifting electric arc furnace, a pit is arranged below a smelting furnace trolley (11), a lifting tray (17) is lowered to the position below the ground below the smelting furnace trolley (11), and after smelting is finished, an upper furnace body of the smelting furnace trolley (11) is transferred along a trolley track (13).
The positioning smelting method of the ultrashort-distance power supply and closed double-body lifting type electric arc furnace comprises the following specific steps of:
1) starting hydraulic lifting, lifting the lifting furnace bottom (8) to the position of a smelting positioner (16) through a hydraulic lifting device (12), lowering an electrode (2) to a bottom material layer position 5-30 cm above the lifting furnace bottom (8), and laying arc striking materials;
2) the material is automatically distributed to the inner furnace (9) through the material distribution device (6), the material is distributed to the position of the material supplementing positioner (19), the power supply (4) is started to initiate arc melting and raise the temperature to 2800-3200 ℃ to form a molten pool, the lifting furnace bottom (8) supports a belt molten product to descend according to working conditions, the molten layer position is fixed and unchanged, the material distribution device (6) automatically supplements the material and uniformly distributes the material according to the working conditions, and the material layer is kept positioned;
3) the electrode lifting device (1) can slightly lift the electrode (2) according to working conditions, and arc flow arc voltage can be accurately controlled through automatic micro-lifting smelting of the electrode;
4) the process method is operated, the smelting is carried out for 7 to 10 hours, and the lifting furnace bottom (8) is lowered to the bottom of the furnace trolley (11) through a hydraulic lifting tray (17); and (3) starting the furnace trolley (11) to discharge, moving the furnace body and the molten weight through the furnace trolley (11), cooling and crystallizing for 7-10 days to room temperature, and removing shells, crushing and screening to obtain the finished fused magnesia.
According to the positioning smelting method of the ultra-short distance power supply and closed double-body lifting type electric arc furnace, a smelting positioner and a material supplementing positioner are installed on an inner furnace (9), the position of a smelting field and the material distribution and material supplementing quantity are accurately controlled, the production process is accurate and controllable, ultra-short distance electrode smelting is realized through positioning smelting, and the electrode length of the electric arc furnace is shortened by one third to two thirds.
The utility model has the advantages and beneficial effects that:
1. the utility model realizes the production method of positioning smelting by arranging the hydraulic lifting tray and dynamically dropping and smelting finished products according to working conditions; the technology of reducing the smelting furnace chamber, fully-closed smelting and adjusting the temperature of the smelting furnace is realized by combining and lifting the heat-insulating double furnace bodies; the limitation of the lifting amplitude of the electrode is realized by the micro-lifting operation process of the electrode, and the ultra-short distance power supply and the shortening of the electrode are achieved; high-valued and intensive processes are realized through accurate positioning and intelligent control operation. Above-mentioned, the utility model discloses have technology promotion optimization, energy saving and consumption reduction by a wide margin, improve the product quality, eliminate accident risk, practice thrift investment cost, airtight environmental protection etc. and show the effect.
2. The utility model has the advantages of being simple in structure and convenient in operation, the practicality is stronger, is applicable to different non-metallic mineral aggregate and smelts.
3. The utility model provides a location smelting method emphasizes optimizing smelting technology, realizes energy-conservation by a wide margin from smelting method to equipment, reduces equipment investment moreover, and this electric arc furnace design and smelting method are to improving the productivity, upgrading increase effect, energy saving and consumption reduction, airtight environmental protection have the important effect.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the following description briefly describes the embodiments and the drawings that need to be used in the description of the prior art.
FIG. 1: the utility model discloses the structure schematic diagram of an ultra-short distance power supply and airtight double-body lifting type electric arc furnace.
The reference numbers in fig. 1 denote: (1) an electrode lifting device; (2) an electrode; (3) a power supply ultra-short network; (4) a power source; (5) an electrode holder; (6) a material distribution device; (7) a furnace cover; (8) lifting the furnace bottom; (9) an inner furnace; (10) a heat-preserving outer furnace body; (11) a furnace trolley; (12) a hydraulic lifting device; (13) a trolley rail; (14) a hydraulic device base; (15) a furnace trolley wheel; (16) a smelting positioner; (17) lifting the tray; (18) lifting a tray hole; (19) a material supplementing positioner.
FIG. 2: the utility model discloses a non-metallic mineral aggregate (magnesite ore production fused magnesia) location smelting production process flow chart.
The specific implementation mode is as follows:
as shown in fig. 1, the utility model provides an electric arc furnace super short distance power supply, airtight binary over-and-under type electric arc furnace mainly includes: electrode elevating gear (1), electrode (2), power supply ultrashort net (3), power (4), electrode holder (5), distributing device (6), bell (7), lift stove bottom (8), interior stove courage (9), heat preservation outer furnace body (10), smelting pot platform truck (11), hydraulic pressure elevating gear (12), platform truck track (13), hydraulic means bottom platform (14), smelting pot platform truck wheel (15), smelt locator (16), lift tray (17), lift tray hole (18), feed supplement locator (19) etc. specifically the structure is as follows:
the furnace body is of a double-furnace-body structure combining an inner furnace (9) and a heat-preservation outer furnace body (10), the furnace body is characterized in that the inner furnace (9) is positioned on the inner side of the heat-preservation outer furnace body (10) and is coaxial with the heat-preservation outer furnace body (10), a heat-preservation and heat-insulation cavity is formed between the inner furnace (9) and the heat-preservation outer furnace body (10), an electric smelting magnesium chamber is arranged in the inner cavity of the inner furnace (9), a furnace cover (7) is installed at the top of the heat-preservation outer furnace body (10), a material distribution device (6) is installed at the top of the furnace cover (7), three electrodes (2) are vertically inserted into the furnace cover (7), the upper end of each electrode (2) is connected with an electrode lifting device (1), and the lower end of each electrode (2) extends into the inner furnace (9); each electrode (2) is sleeved with an electrode holder (5), and the electrode holders (5) are connected with a power supply (4) through a power supply ultra-short network (3).
The inner furnace (9) is of a grid structure, so that radiant heat can overflow outwards, and the double-circulation echelon heat energy utilization function is realized. The heat-insulating outer furnace body (10) is formed by compounding refractory heat-insulating bricks and steel plates, and can effectively control the furnace temperature. The furnace temperature is efficiently regulated and controlled by matching with closed material distribution through a double-furnace body gap and a thermal circulation device according to process requirements. The electrode lifting device (1) is a steel wire rope or a similar driving device, the electrode (2) is controlled to slightly lift through the electrode lifting device (1), the arc flow arc voltage change can be accurately controlled, the electrode slightly lifts according to working conditions during smelting, the distance of electrode loss is compensated, and the melting position is kept unchanged. The power supply ultra-short net (3) is made of power supply copper stranded wires or soft connecting materials, the electrode holder (5) is an electrode copper tile hoop, a power supply and an electrode are directly made of the power supply copper stranded wires or the soft connecting materials and approach to a straight line, the flexible power supply mode of the electrode holder (5) is directly connected, the heavy conductive big arm connecting mode is cancelled, the ultra-short distance power supply method and the furnace cover top simple layout mode are achieved, the impedance is small, the magnetic loss is small, the efficiency is greatly improved, the energy consumption is reduced, and the investment is reduced. The furnace cover (7) is a closed furnace cover, the material distribution device (6) is of a pipeline type material distribution structure, and pipeline type material distribution exhaust holes and electrode holes are formed in the furnace cover (7), so that closed smelting is realized, smelting working conditions are optimized, material distribution is timely and uniformly carried out, and the furnace cover is energy-saving and environment-friendly.
The horizontal lifting furnace bottom (8) that sets up in inner furnace (9), the below of furnace body sets up hydraulic means base (14) corresponding with lifting furnace bottom (8), install hydraulic pressure elevating gear (12) on hydraulic means base (14), lift tray (17) of hydraulic pressure elevating gear (12) upper end are corresponding with lifting furnace bottom (8) bottom, hydraulic pressure elevating gear (12) drive lifting furnace bottom (8) through lift tray (17) and reciprocate, lifting furnace bottom (8) side is sealing contact's sliding fit with the inner wall of inner furnace (9). The upper part of the inner wall of the inner furnace (9) is provided with a material supplementing positioner (19) and a smelting positioner (16), the material supplementing positioner (19) and the smelting positioner (16) are arranged up and down, the material supplementing positioner (19) corresponds to the upper limit of the distribution of non-metal ores, and the smelting positioner (16) corresponds to the position of the lifting furnace bottom (8) during smelting.
The hydraulic lifting device (12) adopts a hydraulic rod, the lifting furnace bottom (8) can lift up and down along the inner edge of the inner furnace (9), the lower part of the lifting furnace bottom (8) is driven and supported by the hydraulic rod, the position of a smelting field can be positioned, namely, the position of a molten pool is controlled according to working conditions, a smelted finished product descends timely, the smelting field is always kept at the upper part of the furnace body, and the positioned smelting method is realized.
The furnace body is arranged on a furnace trolley (11), four furnace trolley wheels (15) arranged at the bottom of the furnace trolley (11) are matched with two trolley rails (13), and the furnace body is driven to move by the furnace trolley (11). The furnace trolley (11) is of a hollow structure, a lifting tray hole (18) corresponding to the lifting tray (17) is formed in the furnace trolley, and the hydraulic lifting device (12) drives the lifting tray (17) to descend and move out of the furnace body as required. A pit is arranged below the melting furnace trolley (11), the lifting tray (17) can be lowered to the position below the ground below the melting furnace trolley (11), and after the melting is finished, the upper furnace body of the melting furnace trolley (11) is transferred along the trolley track (13).
In order to solve the above problems, the following technical solutions are disclosed in the present invention for further explanation, and the present embodiment is only used for explaining the present invention, and does not constitute a limitation to the protection scope of the present invention.
Example (b):
as shown in fig. 2, the non-metal mineral aggregate (fused magnesite produced from magnesite) is produced by positioned smelting with the following steps:
1) starting hydraulic lifting, lifting the lifting furnace bottom (8) to the position of a smelting positioner (16) through a hydraulic lifting device (12), lowering the electrode (2) to the position of a backing material layer 5-30 cm above the lifting furnace bottom (8), and laying arc striking materials.
2) The material is automatically distributed to the inner furnace pipe (9) through the material distribution device (6), the material is distributed to the position of the material supplementing positioner (19), the power supply (4) is started to perform arc striking, smelting temperature is increased to 2800-3200 ℃, a molten pool is formed, the lifting furnace bottom (8) supports a belt melting finished product to slowly descend according to working conditions, the melting layer position is fixed and unchanged, the material distribution device (6) automatically supplements and uniformly distributes materials according to the working conditions, and a material layer is kept positioned.
The smelting positioner (16) and the material supplementing positioner (19) are installed on the inner furnace (9), so that the smelting site position and the material distributing and material supplementing quantity can be accurately controlled, the production process is accurate and controllable, and the required process optimization and promotion requirements can be met. In addition, the ultrashort distance electrode smelting is realized through the positioning smelting, the electrode length of the large-scale electric arc furnace with a higher body position is shortened by one third to two thirds, the risk of breaking the electrode is overcome, the exposed length of the electrode under the thermal condition is reduced, the electrode loss rate is reduced, the furnace and the ore are stable, the electrode is convenient to install, and the labor intensity is reduced.
3) The electrode lifting device (1) can slightly lift the electrode (2) according to working conditions, and arc flow arc voltage can be accurately controlled through automatic micro-lifting smelting of the electrode.
4) The process is operated according to the process method, the smelting is carried out for 7 to 10 hours, and the lifting furnace bottom (8) is lowered to the bottom of the furnace trolley (11) through a hydraulic lifting tray (17). And (3) starting the furnace trolley (11) to discharge, moving the furnace body and the molten weight through the furnace trolley (11), cooling and crystallizing for 7-10 days to room temperature, and removing shells, crushing and screening to obtain the finished fused magnesia.
The embodiment result shows, the utility model discloses effectively promote the furnace temperature, improve the furnace condition, improve smelting efficiency, improve product quality, energy saving and consumption reduction, airtight environmental protection by a wide margin are applicable to all non-metallic mineral aggregate electric arc furnace electrode hot melt and are smelted, include but not limited to by magnesite raw materials production electric smelting magnesite.
The utility model discloses an ultrashort apart from power supply, airtight binary over-and-under type electric arc furnace, to smelting in the location of different non-metallic ore deposit, process control, power supply distance, furnace body form have the difference, but any is the same as the utility model discloses non-metallic ore deposit location smelting method and facility equipment and technology all belong to the utility model discloses the right protection scope.
Claims (6)
1. The utility model provides an ultrashort apart from power supply, airtight binary over-and-under type electric arc furnace which characterized in that, this electric arc furnace includes: electrode elevating gear (1), electrode (2), power supply ultrashort net (3), power (4), electrode holder (5), distributing device (6), bell (7), lift stove bottom (8), inner furnace (9), heat preservation outer furnace body (10), smelting pot platform truck (11), hydraulic pressure elevating gear (12), platform truck track (13), hydraulic means bottom (14), smelting pot platform truck wheel (15), smelt locator (16), lift tray (17), lift tray hole (18), feed supplement locator (19), concrete structure is as follows:
the furnace body is of a double-furnace-body structure combining an inner furnace (9) and a heat-preservation outer furnace body (10), the furnace body is characterized in that the inner furnace (9) is positioned on the inner side of the heat-preservation outer furnace body (10) and is coaxial with the heat-preservation outer furnace body (10), a heat-preservation heat-insulation cavity is formed between the inner furnace (9) and the heat-preservation outer furnace body (10), an electric smelting chamber is arranged in the inner cavity of the inner furnace (9), a furnace cover (7) is installed at the top of the heat-preservation outer furnace body (10), a material distribution device (6) is installed at the top of the furnace cover (7), three electrodes (2) are vertically inserted into the furnace cover (7), the upper end of each electrode (2) is connected with an electrode lifting device (1), and the lower end of each electrode (2) extends into the inner furnace (9); each electrode (2) is sleeved with an electrode holder (5), and the electrode holders (5) are connected with a power supply (4) through a power supply ultra-short network (3);
a lifting furnace bottom (8) is horizontally arranged in an inner furnace pipe (9), a hydraulic device base (14) corresponding to the lifting furnace bottom (8) is arranged below the furnace body, a hydraulic lifting device (12) is installed on the hydraulic device base (14), a lifting tray (17) at the upper end of the hydraulic lifting device (12) corresponds to the bottom of the lifting furnace bottom (8), the hydraulic lifting device (12) drives the lifting furnace bottom (8) to move up and down through the lifting tray (17), and the side surface of the lifting furnace bottom (8) is in sliding fit with the inner wall of the inner furnace pipe (9) in sealing contact; a material supplementing positioner (19) and a smelting positioner (16) are arranged on the upper part of the inner wall of the inner furnace (9), the material supplementing positioner (19) and the smelting positioner (16) are arranged up and down, the material supplementing positioner (19) corresponds to the upper limit of the distribution of non-metal ores, and the smelting positioner (16) corresponds to the position of the lifting furnace bottom (8) during smelting;
the furnace body is arranged on the furnace trolley (11), four furnace trolley wheels (15) arranged at the bottom of the furnace trolley (11) are matched with the two trolley rails (13), and the furnace body is driven to move by the furnace trolley (11); the melting furnace trolley (11) is of a hollow structure, a lifting tray hole (18) corresponding to the lifting tray (17) is formed in the melting furnace trolley, and the hydraulic lifting device (12) drives the lifting tray (17) to descend and move out of the furnace body as required.
2. The ultra-short distance power supply closed double-body lifting electric arc furnace as claimed in claim 1, wherein the inner furnace (9) is of a grid structure, and the heat-insulating outer furnace body (10) is formed by compounding refractory heat-insulating bricks and steel plates.
3. The ultra-short distance power supply closed double-body lifting type electric arc furnace as claimed in claim 1, wherein the electrode lifting device (1) is a wire rope driving device, and the electrode (2) is controlled to be lifted slightly by the electrode lifting device (1) so as to accurately control the arc current and arc voltage changes.
4. The ultra-short distance power supply closed double-body lifting type electric arc furnace as claimed in claim 1, wherein the furnace cover (7) is a closed furnace cover, the material distribution device (6) is of a pipeline type material distribution structure, and the furnace cover (7) is provided with pipeline type material distribution exhaust holes and electrode holes.
5. The ultra-short distance power supply closed double-body lifting type electric arc furnace as claimed in claim 1, wherein the hydraulic lifting device (12) adopts a hydraulic rod, the lifting furnace bottom (8) is lifted up and down along the inner edge of the inner furnace (9), and the lower part of the lifting furnace bottom (8) is supported by the hydraulic rod in a driving way.
6. The ultra-short distance power supply closed twin-elevating electric arc furnace as claimed in claim 1, wherein a pit is provided below the melting furnace carriage (11), the elevating tray (17) is lowered to a position below the ground below the melting furnace carriage (11), and after completion of melting, the upper furnace body of the melting furnace carriage (11) is transferred along the carriage rail (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220451113.3U CN217358025U (en) | 2022-03-03 | 2022-03-03 | Ultrashort-distance power supply and closed double-body lifting type electric arc furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220451113.3U CN217358025U (en) | 2022-03-03 | 2022-03-03 | Ultrashort-distance power supply and closed double-body lifting type electric arc furnace |
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| CN217358025U true CN217358025U (en) | 2022-09-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114576996A (en) * | 2022-03-03 | 2022-06-03 | 苏州华光信息科技有限公司 | Ultra-short-distance power supply and closed double-body lifting type electric arc furnace and positioning smelting method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114576996A (en) * | 2022-03-03 | 2022-06-03 | 苏州华光信息科技有限公司 | Ultra-short-distance power supply and closed double-body lifting type electric arc furnace and positioning smelting method |
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