CN203768431U - Electroslag remelting furnace - Google Patents
Electroslag remelting furnace Download PDFInfo
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- CN203768431U CN203768431U CN201320884927.7U CN201320884927U CN203768431U CN 203768431 U CN203768431 U CN 203768431U CN 201320884927 U CN201320884927 U CN 201320884927U CN 203768431 U CN203768431 U CN 203768431U
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Abstract
The utility model relates to an electroslag remelting furnace, which is a constant-power and constant-slag-component dual-mode control system. The electroslag remelting furnace is structurally characterized by comprising a constant-power and constant-slag-component dual-mode control system, a rectifier transformer (1), an alternating current-alternating current frequency converter (2), a co-phase counter parallel connection heavy current line (3), a coaxial conductive system (4), an electrode weighing device (5), an X-Y direction centering device, a conductive feed rod (6), an electrode clamping device, a crystallizer (7), a bottom water tank (8), an ingot pulling device (9), two furnace head (10), a frequency conversion walking transmission device (11), an electrode lifting drive system (12), a gas protection device (13), an anti-inertia impact device (14 ), an electrode assembly station (15), a heating furnace lifting device (16) and an end electric heating furnace (17). The electroslag remelting furnace disclosed by the utility model has the advantages that under the protection of an inert gas, the smelting is effectively controlled or the contents of hydrogen and oxygen molecules in the steel are reduced and the crystallization of the electroslag remelting ingot is symmetrical and uniform by coaxial electric conduction.
Description
Technical field
The utility model relates to structure design and the applied technical field of electroslag remelting furnace.
Background technology
At present; the large-scale electroslag remelting furnace of domestic electroslag metallurgy industry does not much all have protective atmosphere; and adopting transformer outward current is power frequency; power factor; current consumption is large; adopt the electric high-power transformer of single-phase turnover generally will add dynamic compensating device and reduce to reach the effect that electrical network is impacted, but investment is larger.
People urgently wish to obtain a kind of technique effect good be filled with shielding gas and the high electroslag remelting furnace of power factor.
Utility model content
Order of the present utility model is to provide the good electroslag remelting furnace of a kind of technique effect.
Described electroslag remelting furnace is permanent power and permanent slag group dual-mode control system, electroslag remelting furnace is constructed as follows: permanent power and permanent slag group dual-mode control system, rectifier transformer 1, AC-AC frequency converter 2, the short net 3 of cophase counter parallel connection, coaxial conductive system 4, electrode weighing device 5, X-Y direction aligning gear, conduction material bar 6, electrode gripping unit, crystallizer 7, end water tank 8, stripping device 9, two burners 10, frequency conversion walking transmission mechanism 11, rise fall of electrodes transmission system 12, gas shield device 13, anti-inertia impact device 14, electrode station 15, process furnace lifting device 16, end electrical heater 17, hot water starts, cooling water recirculation system 18, electrode, dynamic weighing adds slag charge device 20, low-voltage electrical Controlling System, wherein:
On described two burners 10, be provided with electrode weighing device 5, X-Y direction aligning gear, conduction material bar 6, electrode gripping unit, rise fall of electrodes transmission system 12 and dynamic weighing and add slag charge device 20; Described hot water starts, cooling water recirculation system 18 is positioned at burner 10 belows; Electrode gripping unit and electrode are fixedly linked; Conduction material bar 6 and electrode gripping unit clamp electrode to mention and have a conducting function.Described electrode is connected with burner 10 with frequency conversion walking transmission mechanism 11 by rise fall of electrodes transmission system 12, thereby carries out lifting and movement; Described gas shield device 13 forms an enclosed space with crystallizer 7, end water tank 8, and is filled with rare gas element, and the left and right end portions of electrode is provided with end electrical heater 17, and end electrical heater 17 is between crystallizer 7 and end water tank 8; Stripping device 9 is positioned at end water tank 8 belows; When preheating, the gas shield device 13 of another burner and process furnace are buckled together and form enclosed space and be filled with rare gas element and carry out anaerobic heating, and described electrode is non-oxidation consumable electrode, left and right end portions 600-800 DEG C of heating; Burner 10, gas shield device 13, anti-inertia impact device 14, dynamic weighing add slag charge device 20 and form and be electrically connected with low-voltage electrical Controlling System, and are automatically controlled and smelt by automatic control system; Described process furnace lifting device 16 is fixed on electrode station 15, and described rectifier transformer 1, friendship alternating flow device 2, the short net 3 of cophase counter parallel connection, coaxial conductive system 4, conduction material bar 6, electrode gripping unit, electrode and end water tank 8 form smelts main power circuit loops; Electrode station 14, end process furnace lifting device 15, end electrical heater 17 complete electrode anaerobic heating jointly, for melting station both sides each a set of.When any one burner is smelted, another burner belt electrode carries out end heating.
Described rise fall of electrodes transmission system 12 is constructed as follows: servomotor, variable-frequency motor and ball-screw; Described variable-frequency motor is connected by differential reduction gearbox with servomotor, and smelting is connected with speed reduction unit, ball-screw with servomotor; Jointly completing quick upgrading and low speed control smelts.
Described esr furnace capacity is 9880KVA.
The rated capacity of described electroslag remelting furnace is 120t.
When any one burner 10 is smelted, another burner belt electrode carries out end heating.
Described electroslag remelting furnace is hundred tonnes of one poles, low frequency, electroslag furnace under protective Ar gas remelting furnace, employing, rectifier transformer 1, AC-AC frequency converter 2; Described rectifier transformer 1 is ZS9880KVA/35, on-load voltage regulation; Three-phase enters electric single-phase output; Described AC-AC frequency converter, the two anti-stars of Y of band paralleing reactor or 12 pulsating wave, power frequency step-down is 1-3Hz frequently, it is boundling anti-parallel connection mode that frequency transformer exports short net, in the time that transformer efficiency is larger to electrical network without impact.Power factor improves.Magneticstrength is more much lower than power frequency.Electric current surface action in short net is poor, is on average to pass through substantially, short net pressure drop little and easily arrange.
Described gas shield device 13 under the protection of inert gas that has certain pressure remelting effectively hinder and airborne the harmful hydrogen-oxygen of steel entered in steel; Gas shield device also heats for end;
Described electroslag remelting furnace adopts full automatic control, permanent molten speed, permanent slag group control to smelt, and guarantees ingot quality.Electrode clamping adopts electrode station to use frequency variable speed-adjusting mechanism to drive travelling car by push-pull chain; Process furnace lifting device specifically comprises ratio hydraulicvalve, the hydro-cylinder of linear displacement transducer, lifting support is housed; One-stop combination is heated in process furnace lifting device end, and electrode station is for laying down after melting remaining electrode and loading onto the electrode that new preparation is smelted.Driven respectively 2 locomotives of each station by push-pull chain.End process furnace can be according to electrode length lifting, to ensure at the bottom of electrode and the distance of furnace bottom.Completed by ratio hydraulicvalve and linear displacement transducer.Floor space is little, shortened process, saving electrode swap time.
Melting station can use respectively stripping crystallizer and fixing crystallizer to carry out melting.Coaxial conductive system, automation system, hydraulic efficiency system hot water start system, automatic Weighing adds slag system.Be arranged on respectively on Steel Concrete melt pit, ground level and scaoffold and each auxiliary compartment.
Described electroslag remelting furnace also comprises and adds slag system, reinforced under protection of inert gas state in dynamic measurement charge weight.Low-frequency current proofing unit, the accurate electric current that detects four conductive poles under low frequency power supply condition.Multi-functional burner car, collector electrode lifting, petticoat pipe lifting.Plumbing distribution, hydraulic station, alloy sealed feeding, add slag charge, short net, electric current and be sandwiched in one.
Described electroslag remelting furnace adopts coaxial conductive, and frequency transformer exports short net and adopts the parallel outgoing line interval 15mm of boundling anti-parallel connection mode a-x, equidistant being arranged symmetrically with, and has ensured that each short out net size of current is consistent.
Described electroslag remelting furnace servomotor+ball-screw+line slideway precision drive is similar under static state LOAD CELLS to weigh, ensured weighing precision, has also ensured feed accuracy simultaneously and then has ensured the realization of permanent molten speed, permanent slag group Melting control.Finally can smelt high-grade Electro Slag Remelting Steel.Adopt the mode of Dual Drive rail car.Stable and reliable operation, acceleration and deceleration are carried out and are started, stop action by acceleration, deceleration curve by alternating-current variable frequency motor, operate steadily without impacting.Plumbing divider, hydraulic station, distribution box cabinet are all placed on respectively on burner car, controlling elements and the easy Operation and Maintenance of power element near distance like this, also reduced a lot of medium pipelines and cable by drag chain to car.
The utility model has the advantages that and under protection of inert gas, smelt the content of effectively controlling or reduce the hydrogen-oxygen molecule in steel.Coaxial conductive makes ESR ingot crystallization symmetrically and evenly.Low frequency is smelted can stably improve power factor, reduces power consumption.Adopt three-phase input, single-phase output to impact electrical network little, adopt LOAD CELLS to weigh, add precision drive and the control of servomotor+ball-screw.Completing permanent molten fast permanent slag group smelts; Ensure the best quality of best smelting state and product; There is comparatively huge economic worth and social value.
Brief description of the drawings
Fig. 1 is electroslag remelting furnace vertical planning drawing;
Fig. 2 is electroslag remelting furnace front view;
Fig. 3 is electroslag remelting furnace left view;
Fig. 4 is electroslag remelting furnace orthographic plan.
Embodiment
Embodiment 1
Described electroslag remelting furnace is permanent power and permanent slag group dual-mode control system, electroslag remelting furnace is constructed as follows: permanent power and permanent slag group dual-mode control system, rectifier transformer 1, AC-AC frequency converter 2, the short net 3 of cophase counter parallel connection, coaxial conductive system 4, electrode weighing device 5, X-Y direction aligning gear, conduction material bar 6, electrode gripping unit, crystallizer 7, end water tank 8, stripping device 9, two burners 10, frequency conversion walking transmission mechanism 11, rise fall of electrodes transmission system 12, gas shield device 13, anti-inertia impact device 14, electrode station 15, process furnace lifting device 16, end electrical heater 17, hot water starts, cooling water recirculation system 18, electrode, dynamic weighing adds slag charge device 20, low-voltage electrical Controlling System, wherein:
On described two burners 10, be provided with electrode weighing device 5, X-Y direction aligning gear, conduction material bar 6, electrode gripping unit, rise fall of electrodes transmission system 12 and dynamic weighing and add slag charge device 20; Described hot water starts, cooling water recirculation system 18 is positioned at burner 10 belows; Electrode gripping unit and electrode are fixedly linked; Conduction material bar 6 and electrode gripping unit clamp electrode to mention and have a conducting function.Described electrode is connected with burner 10 with frequency conversion walking transmission mechanism 11 by rise fall of electrodes transmission system 12, thereby carries out lifting and movement; Described gas shield device 13 forms an enclosed space with crystallizer 7, end water tank 8, and is filled with rare gas element, and the left and right end portions of electrode is provided with end electrical heater 17, and end electrical heater 17 is between crystallizer 7 and end water tank 8; Stripping device 9 is positioned at end water tank 8 belows; When preheating, the gas shield device 13 of another burner and process furnace are buckled together and form enclosed space and be filled with rare gas element and carry out anaerobic heating, and described electrode is non-oxidation consumable electrode, left and right end portions 600-800 DEG C of heating; Burner 10, gas shield device 13, anti-inertia impact device 14, dynamic weighing add slag charge device 20 and form and be electrically connected with low-voltage electrical Controlling System, and are automatically controlled and smelt by automatic control system; Described process furnace lifting device 16 is fixed on electrode station 15, and described rectifier transformer 1, friendship alternating flow device 2, the short net 3 of cophase counter parallel connection, coaxial conductive system 4, conduction material bar 6, electrode gripping unit, electrode and end water tank 8 form smelts main power circuit loops; Electrode station 14, end process furnace lifting device 15, end electrical heater 17 complete electrode anaerobic heating jointly, for melting station both sides each a set of.When any one burner is smelted, another burner belt electrode carries out end heating.
Described rise fall of electrodes transmission system 12 is constructed as follows: servomotor, variable-frequency motor and ball-screw; Described variable-frequency motor is connected by differential reduction gearbox with servomotor, and smelting is connected with speed reduction unit, ball-screw with servomotor; Jointly completing quick upgrading and low speed control smelts.
Described esr furnace capacity is 9880KVA.
The rated capacity of described electroslag remelting furnace is 120t.
When any one burner 10 is smelted, another burner belt electrode carries out end heating.
Described electroslag remelting furnace is hundred tonnes of one poles, low frequency, electroslag furnace under protective Ar gas remelting furnace, employing, rectifier transformer 1, AC-AC frequency converter 2; Described rectifier transformer 1 is ZS9880KVA/35, on-load voltage regulation; Three-phase enters electric single-phase output; Described AC-AC frequency converter, the two anti-stars of Y of band paralleing reactor or 12 pulsating wave, power frequency step-down is 1-3Hz frequently, it is boundling anti-parallel connection mode that frequency transformer exports short net, in the time that transformer efficiency is larger to electrical network without impact.Power factor improves.Magneticstrength is more much lower than power frequency.Electric current surface action in short net is poor, is on average to pass through substantially, short net pressure drop little and easily arrange.
Described gas shield device 13 under the protection of inert gas that has certain pressure remelting effectively hinder and airborne the harmful hydrogen-oxygen of steel entered in steel; Gas shield device also heats for end;
Described electroslag remelting furnace adopts full automatic control, permanent molten speed, permanent slag group control to smelt, and guarantees ingot quality.Electrode clamping and end add thermal recovery electrode station and use frequency variable speed-adjusting mechanism to drive travelling car by push-pull chain; Process furnace lifting device specifically comprises ratio hydraulicvalve, the hydro-cylinder of linear displacement transducer, lifting support is housed; One-stop combination is heated in process furnace lifting device end, and electrode station is for laying down after melting remaining electrode and loading onto the electrode that new preparation is smelted.Driven respectively 2 locomotives of each station by push-pull chain.End process furnace can be according to electrode length lifting, to ensure at the bottom of electrode and the distance of furnace bottom.Completed by ratio hydraulicvalve and linear displacement transducer.Floor space is little, shortened process, saving electrode swap time.
Melting station can use respectively stripping crystallizer and fixing crystallizer to carry out melting.Coaxial conductive system, automation system, hydraulic efficiency system hot water start system, automatic Weighing adds slag system.Be arranged on respectively on Steel Concrete melt pit, ground level and scaoffold and each auxiliary compartment.
Described electroslag remelting furnace also comprises and adds slag system, reinforced under protection of inert gas state in dynamic measurement charge weight.Low-frequency current proofing unit, the accurate electric current that detects four conductive poles under low frequency power supply condition.Multi-functional burner car, collector electrode lifting, petticoat pipe lifting.Plumbing distribution, hydraulic station, alloy sealed feeding, add slag charge, short net, electric current and be sandwiched in one.
Described electroslag remelting furnace adopts coaxial conductive, and frequency transformer exports short net and adopts the parallel outgoing line interval 15mm of boundling anti-parallel connection mode a-x, equidistant being arranged symmetrically with, and has ensured that each short out net size of current is consistent.
Described electroslag remelting furnace servomotor+ball-screw+line slideway precision drive is similar under static state LOAD CELLS to weigh, ensured weighing precision, has also ensured feed accuracy simultaneously and then has ensured the realization of permanent molten speed, permanent slag group Melting control.Finally can smelt high-grade Electro Slag Remelting Steel.Adopt the mode of Dual Drive rail car.Stable and reliable operation, acceleration and deceleration are carried out and are started, stop action by acceleration, deceleration curve by alternating-current variable frequency motor, operate steadily without impacting.Plumbing divider, hydraulic station, distribution box cabinet are all placed on respectively on burner car, controlling elements and the easy Operation and Maintenance of power element near distance like this, also reduced a lot of medium pipelines and cable by drag chain to car.
The advantage of the present embodiment is under protection of inert gas, to smelt the content of effectively controlling or reduce the hydrogen-oxygen molecule in steel.Coaxial conductive makes ESR ingot crystallization symmetrically and evenly.Low frequency is smelted can stably improve power factor, reduces power consumption.Adopt three-phase input, single-phase output to impact electrical network little, adopt LOAD CELLS to weigh, add precision drive and the control of servomotor+ball-screw.Completing permanent molten fast permanent slag group smelts; Ensure the best quality of best smelting state and product; There is comparatively huge economic worth and social value.
Claims (5)
1. an electroslag remelting furnace, is characterized in that: described electroslag remelting furnace is permanent power and permanent slag group dual-mode control system, electroslag remelting furnace is constructed as follows: permanent power and permanent slag group dual-mode control system, rectifier transformer (1), AC-AC frequency converter (2), the short net of cophase counter parallel connection (3), coaxial conductive system (4), electrode weighing device (5), X-Y direction aligning gear, conduction material bar (6), electrode gripping unit, crystallizer (7), end water tank (8), stripping device (9), two burners (10), frequency conversion walking transmission mechanism (11), rise fall of electrodes transmission system (12), gas shield device (13), anti-inertia impact device (14), electrode station (15), process furnace lifting device (16), end electrical heater (17), hot water starts, cooling water recirculation system (18), electrode, dynamic weighing adds slag charge device (20), low-voltage electrical Controlling System, wherein:
On described two burners (10), be provided with electrode weighing device (5), X-Y direction aligning gear, conduction material bar (6), electrode gripping unit, rise fall of electrodes transmission system (12) and dynamic weighing and add slag charge device (20); Described hot water starts, cooling water recirculation system (18) is positioned at burner (10) below; Electrode gripping unit and electrode are fixedly linked; Described electrode is connected with burner (10) with frequency conversion walking transmission mechanism (11) by rise fall of electrodes transmission system (12), described gas shield device (13) forms an enclosed space with crystallizer (7), end water tank (8), and be filled with rare gas element, the left and right end portions of electrode is provided with end electrical heater (17), and end electrical heater (17) is positioned between crystallizer (7) and end water tank (8); Stripping device (9) is positioned at end water tank (8) below; Burner (10), gas shield device (13), anti-inertia impact device (14), dynamic weighing add slag charge device (20) and form and be electrically connected with low-voltage electrical Controlling System, it is upper that described process furnace lifting device (16) is fixed on electrode station (15), and described rectifier transformer (1), friendship alternating flow device (2), the short net of cophase counter parallel connection (3), coaxial conductive system (4), conduction material bar (6), electrode gripping unit, electrode and end water tank (8) form smelts main power circuit loop; Described rise fall of electrodes transmission system (12) is constructed as follows: servomotor, variable-frequency motor and ball-screw; Described variable-frequency motor is connected by differential reduction gearbox with servomotor, and smelting is connected with speed reduction unit, ball-screw with servomotor.
2. according to electroslag remelting furnace described in claim 1, it is characterized in that: described rectifier transformer (1) is ZS9880KVA/35, on-load voltage regulation; Three-phase enters electric single-phase output.
3. according to electroslag remelting furnace described in claim 1, it is characterized in that: the rated capacity of described electroslag remelting furnace is 120t.
4. according to electroslag remelting furnace described in claim 2, it is characterized in that: the rated capacity of described electroslag remelting furnace is 120t.
5. according to the described electroslag remelting furnace of one of claim 1-4, it is characterized in that: described esr furnace capacity is 9880KVA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320884927.7U CN203768431U (en) | 2013-12-30 | 2013-12-30 | Electroslag remelting furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320884927.7U CN203768431U (en) | 2013-12-30 | 2013-12-30 | Electroslag remelting furnace |
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| CN203768431U true CN203768431U (en) | 2014-08-13 |
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| CN201320884927.7U Expired - Fee Related CN203768431U (en) | 2013-12-30 | 2013-12-30 | Electroslag remelting furnace |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104630494A (en) * | 2015-01-19 | 2015-05-20 | 长春师范大学 | Electroslag remelting process control system and control method thereof |
| CN106756079A (en) * | 2016-12-12 | 2017-05-31 | 合智熔炼装备（上海）有限公司 | A kind of material bar running protection method of consumable electrode vacuum furnace and electroslag furnace |
| CN110345756A (en) * | 2019-07-04 | 2019-10-18 | 江苏省徐州华泰工具有限责任公司 | Equipment suitable for tools factory's waste iron filing melting |
-
2013
- 2013-12-30 CN CN201320884927.7U patent/CN203768431U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104630494A (en) * | 2015-01-19 | 2015-05-20 | 长春师范大学 | Electroslag remelting process control system and control method thereof |
| CN106756079A (en) * | 2016-12-12 | 2017-05-31 | 合智熔炼装备（上海）有限公司 | A kind of material bar running protection method of consumable electrode vacuum furnace and electroslag furnace |
| CN110345756A (en) * | 2019-07-04 | 2019-10-18 | 江苏省徐州华泰工具有限责任公司 | Equipment suitable for tools factory's waste iron filing melting |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20151230 |
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