CN201334506Y - Double-station high-efficiency electroslag furnace - Google Patents
Double-station high-efficiency electroslag furnace Download PDFInfo
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- CN201334506Y CN201334506Y CNU2009200387381U CN200920038738U CN201334506Y CN 201334506 Y CN201334506 Y CN 201334506Y CN U2009200387381 U CNU2009200387381 U CN U2009200387381U CN 200920038738 U CN200920038738 U CN 200920038738U CN 201334506 Y CN201334506 Y CN 201334506Y
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Abstract
The utility model relates to a double-station high-efficiency electroslag furnace. The electroslag furnace is characterized in that the positioning of a rotary furnace head part between two fixed smelting stations is finished through four positioning air cylinders at the upper part of an electrode of a crystallizer, and the end parts of air cylinder piston rods in the positioning air cylinders are connected with a return circuit of an electroslag power supply; and a short network on the secondary side of a transformer in an electrical system part is respectively connected with a sliding conductive system on the rotary furnace head part and the upper part of the electrode of the crystallizer through a secondary short network connection fixing frame fixed on the rotary furnace head part, and the upper part of the electrode of the crystallizer is inserted in four upright columns at the lower part of the electrode of the crystallizer on the fixed smelting station part through the piston rods of the four air cylinders and connected with the fixed smelting station part. The utility model has the advantages that the electroslag furnace overcomes the defect existing in the prior art of low efficiency and achieves the purpose that the other station can perform preparation before smelting or spindle withdrawing after smelting when one station performs remelting and smelting, therefore, the two stations can alternately perform the corresponding operation, and the efficiency is doubled.
Description
Technical field
The utility model belongs to metal esr equipment technical field, and particularly a kind of double-station high efficiency electroslag furnace is applied in the metal refusion and smelting process.Belong to the electroslag furnace technical field.
Background technology
Electroslag furnace is that a kind of melting current that utilizes produces the consumable electrode that slag bath is inserted in the heat energy fusing, after metal drop cleans by slag liquid, crystallizes into a kind of special smelting equipment of ESR ingot in water mold.Because the going of slag liquid is mingled with effect and good crystallization condition, the esr metal has good purity, and as-cast structure is careful evenly, no white point and year colyliform segregation, and sulphur content is extremely low, premium propertiess such as inclusion small and dispersed.Therefore, esr is in monopoly position in big-and-middle-sized forging, the production of module blank, have comparative advantage at high-quality mould steel, maraging steel, dual phase steel pipe, roll for cold rolling electroslag steel, the electroslag casting shaped piece has unique distinction, and the annual production of electroslag steel has reached the hundreds of thousands of ton in enclosing.Therefore, electroslag furnace is the requisite production unit of special steel plant.At present, electroslag furnace all adopts the mode at single melting station, getting ingot, need cost plenty of time after preparation before the melting and the melting.Therefore, inefficiency.
Summary of the invention
The utility model is in order to solve the above-mentioned inefficient defective of existing in prior technology, a kind of double-station high efficiency electroslag furnace is proposed, by adopting the double scheme, realize when a station when carrying out refusion and smelting, another station can carry out the work of getting ingot after preceding preparation of melting or the melting simultaneously.So, the relevant work that can hocket of two stations, efficient multiplication.
Technical solution of the present utility model: its structure is to comprise rotatable burner, fixedly melting station and electrical system part, wherein the rotatable stove head part two fixedly between the melting station location be by 4 positioning cylinders on the crystallizer electrode top, the cylinder piston boom end in the positioning cylinder and the backhaul circuit of electroslag power supply link, and 4 cylinder piston rods insert on 4 root posts of crystallizer electrode bottom.The short Netcom of the Circuit Fault on Secondary Transformer of electrical system part cross the short net Connection Bracket of the secondary that is fixed on the rotatable stove head part respectively with the rotatable stove head part on the sliding conduction system be connected with crystallizer electrode top, insert on 4 root posts of the crystallizer electrode bottom on the fixing melting station part by 4 cylinder piston rods on it on crystallizer electrode top again, is connected with fixing melting station part.
Advantage of the present utility model: this electroslag furnace structure is a well formula coaxial system, characteristics are that single armed is single-phase, twin furnace seat, crystallizer and end water tank one demoulding mode, can be in two melting stations any remelting steel ingot, every ESR ingot must not be used the consumable electrode more than.The short net of Circuit Fault on Secondary Transformer adopts parallel wiring and reverse solid matter (coaxial conductive) pattern, and the rise fall of electrodes bar adopts brush assembly of electric to finish with being connected of short net, and there are 4 root posts at each melting station, in establish water-cooled cable, constitute the short loop of netting.Use high-precision electronic scales measuring system, can calculate comsumable melt speed fast, and realize melting rate control smelting.Automatization control adopts melting rate control and slag resistance to control, and makes smelting time stable.Adopt the solid slag starting the arc.
Description of drawings
Accompanying drawing 1 is the double-station high efficiency electroslag furnace structural representation.
Accompanying drawing 2 is vertical views of Fig. 1.
Among the figure 1 is electrode feed system, the 2nd, water-cooled conduction lifting copper bar, the 3rd, electronic scales support, the 4th, sliding conduction system, the 5th, well formula framework, the 6th, crystallizer electrode top, the 7th, crystallizer electrode bottom, the 8th, crystallizer, the 9th, end water tank, the 10th, electrode centering body, the 11st, pressure transmitter, the 12nd, automatic supporting electrode clamping device, the 13rd, anchor, the 14th, last petticoat pipe, the 15th, following petticoat pipe, the 16th, guardrail, the 17th, supporting electrode, the 18th, consumable electrode, the 19th, end water frame.
Embodiment
Described rotatable stove head part, its structure comprises well formula framework 5, electrode feed system 1, water-cooled conduction lifting copper bar 2, sliding conduction system 4, supporting electrode clamp mechanism 12, the short net Connection Bracket 13 of secondary, electronic scales support 3, pressure transmitter 11, electrode centering body 10, crystallizer electrode top 6, last petticoat pipe 14, wherein the electrode feed system 1, water-cooled conduction lifting copper bar 2, supporting electrode clamp mechanism 12 is supported on three pressure transmitters 11 by electronic scales support 3, last petticoat pipe 14 is fixed on the well formula framework 5, water-cooled conduction lifting copper bar 2 middle and lower parts connect oscillating bearing, and electrode centering body 10 is at water-cooled conduction lifting copper bar 2 tops; Slide contact assembly in the sliding conduction system 4 is connected to water-cooled conduction lifting copper bar 2,
Described fixedly melting station part has comprised two fixedly melting stations, each fixedly includes petticoat pipe 15 down in the melting station, crystallizer electrode bottom 7, crystallizer 8, end water tank 9, end water frame 20, the rotatable stove head part fixedly is 4 positioning cylinders on the crystallizer electrode top 6 between the melting station at two, the cylinder piston boom end in the positioning cylinder and the backhaul circuit of electroslag power supply link, 4 cylinder piston rods insert on 4 root posts of crystallizer electrode bottom 7,4 the active copper contacts of end water tank 9 inside and the contact surface of end water tank conductive copper plate are arcual, and 4 active copper contacts are linear contacts with contacting of crystallizer 8 surfaces; 15 of following petticoat pipes are seated on the crystallizer 8 of fixing melting station part, and petticoat pipe 15 has charging opening and dedusting air suction inlet down;
Described electrical system part is by high-pressure system, low-voltage-powered system, instrument detection system and the second computer Controlling System be made up of PLC and industrial computer,
The rotatable stove head part realizes:
● the feed (can realize coaxial feed) of big electric current
● water-cooled conduction lifting copper bar is connected and load-bearing with resmelting electrode
● the feeding of electrode
● weigh continuously
● function in the electrode pair
● two fixedly the melting station switch
The present invention adopts co-axial sliding conduction system, reduces power consumption effectively.
Short net connection is connected to water-cooled conduction lifting copper bar 2 by the slide contact assembly, again by being positioned at the supporting electrode clamp mechanism 12 of water-cooled conduction lifting copper bar 2 bottoms, import electric current into supporting electrode 17 and consumable electrode 18, electric current is by consumable electrode-slag bath-molten bath-steel ingot-end water tank and several backhaul lead, is used for obtaining coaxial big current circuit by the method for parallel wiring.
Sensing system is as the intact part of electrode feed system, and sensing system is the necessary instrument of the molten speed control system of accurate calculation machine.All are not based on electrode weight is that the molten fast calculating of parameter all is proved to be dissatisfied and coarse.
Therefore, must the accurate machinery of strict design and electrical structure cooperate sensing system to obtain the precise information of needs.
These are: get rid of the influence of frictional force in the electrode feed system, they are designed to system's internal force or by stablize the softish connection they are kept apart from the electronic scales system; Create the electronic scales support 3 of the accurate level of a tape guide system; Use high precision, the pressure transmitter 11 of temperature compensation and electric shield; Use high-precision electronic measurement system, allow to calculate fast molten speed.
A reliable insertion and the automatic supporting electrode clamping device 12 that definitely contacts of carrying between feed rods and the supporting electrode is arranged at the bottom of water-cooled conduction lifting copper bar 2.
The suspension rod of water-cooled conduction lifting copper bar 2 inside is aimed at the supporting joint of user's supporting electrode 17, after the ball retainer of suspension rod and supporting electrode 17 joints connect, outside copper pipe is depressed by pneumatic, the locking ball is pressed onto in the plug of supporting electrode by cam ring, the abundant contact stabilization in water-cooled conduction lifting copper bar supporting electrode steel plane, 2 base copper plane guarantees that reliably big electric current passes through, and it is impaired not generate heat.
Water-cooled conduction lifting copper bar 2 middle and lower parts connect oscillating bearing, make the camber displacement of material bar work trace by the electrode centering body 10 at top, thereby realize the centering adjustment of material bar below.Comprise the asymmetric of rectifiable electrode; Dwindle the danger on electrode and the crystallizer circular arc; Obtain only packing ratio.
In order accurately to understand electrode position in reflow process, native system has disposed the absolute value rotary encoder; The absolute value rotary encoder is connected with ball-screw by timing belt, owing to adopted the absolute value rotary encoder, even in the loss of power accident, also kept this position.Therefore, in case power up also need not " reset ".
Petticoat pipe can be realized atmosphere protection with bleeding, and petticoat pipe includes petticoat pipe 14 and 15 2 parts of following petticoat pipe.Last petticoat pipe 14 is designed to open-type, and better seal is arranged, and is fixed on the well formula framework 5.
15 of following petticoat pipes are seated on the crystallizer 8 of fixing melting station part, and petticoat pipe 15 has charging opening and dedusting air suction inlet down.Dedusting is in line by dusting fan.This sealing petticoat pipe structure can add protective atmosphere interface (argon gas, dry air etc.) simultaneously, and the air suction inlet that adds little discharge capacity is dynamically controlled, and realizes the atmosphere protection of reflow process.
Fixedly melting station part has comprised two fixedly melting stations.Each fixedly includes devices such as petticoat pipe 15, crystallizer electrode bottom 7, crystallizer 8, end water tank 9, end water frame 20 down in the melting station.Two fixedly the melting station the coaxial backward path of melting electric current all is provided.
The rotatable stove head part two fixedly the location between the melting station be to finish by 4 positioning cylinders on the crystallizer electrode top 6, when 4 cylinder piston rods rise put in place after, the rotatable stove head part just can move to another fixedly top at melting station; The backhaul circuit of the end of piston rod and electroslag power supply links, and 4 cylinder piston rods fall, and inserts on 4 root posts of crystallizer electrode bottom 7.Both guaranteed the positive connection in electroslag melting loop, guaranteed again that the rotatable stove head part was two fixing accurate location between the melting station.
In the scope of working face and work melt pit, 4 root posts are fixing with the basis, are provided with 4 water-cooled cables in the inside of column and are connected with the active copper contact of column bottom, guaranteed to import the backhaul bus equably from the electric current that the crystallizer base plate comes.
4 active copper contacts of water tank 9 inside, the described end, adopt 4 structure formations that cylinder compresses and loosens, the contact surface of active copper contact and end water tank conductive copper plate is arcual, pressure by cylinder, guarantee that 4 active copper contacts and contacting of crystallizer 8 surfaces are linear contacts, produce effective low resistance and connect.
Electrical system part is by high-pressure system, low-voltage-powered system, instrument detection system and the second computer Controlling System be made up of PLC and industrial computer,
● the electroslag furnace transformer
The electroslag furnace transformer adopting has the stepless voltage regulation mode of carrying.Every electroslag furnace transformer oil cooler is selected the double-cylinder type oil cooler for use, realizes that one is equipped with the mode of operation of a usefulness.
● the short net of Circuit Fault on Secondary Transformer
The short net of Circuit Fault on Secondary Transformer adopts the pattern of parallel wiring and coaxial conductive, and current transformer is connected in the melting loop of stove seat, in order to the measurement and the relaying of melting electric current; In the contact tube loop that causes end water tank copper coin, configuration branch current mutual inductor.
● the power supply of electroslag furnace equipment dynamic
The power supply of two road power supplys is adopted in the power electricity consumption of stove seat apparatus, and the control power supply adopts AC220V (50Hz) and DC24V.The necessary electric signal measurement instrument of electric distribution cabinet configuration.The host computer of electroslag furnace and PLC power supply adopt the uninterruptible power supply power supply.
Working process of the present invention: beginning → Controlling System energising → rotatable stove head part turn to one fixedly 4 positioning cylinder piston rods on the top → crystallizer electrode top, melting station 6 descend, insert on 4 root posts of crystallizer electrode bottom 7 → copper pipe that water-cooled conduction lifting copper bar 2 drops to supporting electrode 17 joint → outsides depressed by pneumatic, the locking ball is pressed onto in the plug of supporting electrode 17 by cam ring, water-cooled conduction lifting copper bar 2 base copper planes promptly are lockable, and fully contact with supporting electrode steel plane → quick AC servo motor step-down gear running in the electrode feed system 1, water-cooled is conducted electricity lifting copper bar 2, supporting electrode 17 and consumable electrode 18 are lifted to together and begin to smelt height → input processing parameter → smelting and begin to carry out, the operation of servomotor at a slow speed in the electrode feed system 1, data gathering by sensing system, molten speed → the smelting of control finishes, quick AC servo motor step-down gear running in the electrode feed system 1 is conducted electricity lifting copper bar 2 with water-cooled, supporting electrode 17 and remaining consumable electrode 18 propose crystallizer together.Simultaneously, 4 positioning cylinder piston rod withdrawals on the crystallizer electrode top 6,4 root posts → rotatable stove the head part that breaks away from crystallizer electrode bottom 7 turns to the copper pipe of getting residue electrode station → water-cooled conduction lifting copper bar 2 decline → outsides and is mentioned by pneumatic, the locking ball is withdrawed from outside the plug of supporting electrode 17 by cam ring, water-cooled conduction lifting copper bar 2 base copper planes promptly are unlocked → quick AC servo motor step-down gear running in the electrode feed system 1, water-cooled is conducted electricity lifting copper bar 2, rotation height → rotatable stove the head part that supporting electrode 17 and remaining consumable electrode 18 are lifted to the rotatable stove head part together turns to another fixedly next circulation of top, melting station → enter.Simultaneously, close and dismantle the water coolant hydraulic quick coupler of crystallizer 8 and end water tank 9, and will with end water tank 9 and end water frame 20 standing bolt dismounting → use cranes, crystallizer 8 and end water tank 9 are hung out ground emaciated face ingot workshop section, take off ingot → take off ingot, after getting ingot and finishing, crystallizer 8 and end water tank 9 are reconnected → crystallizer 8 and end water tank 9 are hung in fixedly melting station station again, end water tank 9 and end water frame 20 are used bolting, after connecting and open the water coolant hydraulic quick coupler of crystallizer 8 and end water tank 9 → insert electroslag again, the consumable electrode and the supporting electrode that have connected are hung in the crystallizer, prepare to smelt.
Claims (4)
1, double-station high efficiency electroslag furnace is characterized in that comprising rotatable burner, fixedly melting station and electrical system part; Wherein the rotatable stove head part two fixedly between the melting station location be by 4 positioning cylinders on the crystallizer electrode top, the cylinder piston boom end in the positioning cylinder and the backhaul circuit of electroslag power supply link; The short Netcom of Circuit Fault on Secondary Transformer in the electrical system part cross the short net Connection Bracket of the secondary that is fixed on the rotatable stove head part respectively with the rotatable stove head part on the sliding conduction system be connected with crystallizer electrode top, insert by 4 cylinder piston rods on 4 root posts of the crystallizer electrode bottom on the fixing melting station part on crystallizer electrode top, is connected with fixing melting station part.
2, double-station high efficiency electroslag furnace according to claim 1, it is characterized in that electrode feed system, water-cooled conduction lifting copper bar, supporting electrode clamp mechanism in the described rotatable stove head part by the electronic scales stent support on three pressure transmitters, last petticoat pipe is fixed on the well formula framework, water-cooled conduction lifting copper bar middle and lower part connects oscillating bearing, and the electrode centering body is in water-cooled conduction lifting copper masthead portion; Slide contact assembly in the sliding conduction system is connected to water-cooled conduction lifting copper bar.
3, double-station high efficiency electroslag furnace according to claim 1, it is characterized in that described fixedly melting station part has comprised two fixedly melting stations, each fixedly 4 active copper contacts of the water tank inside, the end in the melting station and the contact surface of end water tank conductive copper plate be arcual, 4 active copper contacts are linear contacts with contacting of crystallizer surface; Following petticoat pipe then is seated on the crystallizer of fixing melting station part, and petticoat pipe has charging opening and dedusting air suction inlet down.
4, double-station high efficiency electroslag furnace according to claim 2 is characterized in that described petticoat pipe and the following petticoat pipe composition petticoat pipe gone up, and last petticoat pipe is designed to open-type, is fixed on the well formula framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200387381U CN201334506Y (en) | 2009-01-07 | 2009-01-07 | Double-station high-efficiency electroslag furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200387381U CN201334506Y (en) | 2009-01-07 | 2009-01-07 | Double-station high-efficiency electroslag furnace |
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| Publication Number | Publication Date |
|---|---|
| CN201334506Y true CN201334506Y (en) | 2009-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200387381U Expired - Lifetime CN201334506Y (en) | 2009-01-07 | 2009-01-07 | Double-station high-efficiency electroslag furnace |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304625A (en) * | 2011-09-09 | 2012-01-04 | 沈阳东大兴科冶金技术有限公司 | Electroslag furnace with special vacuum system |
| CN102703725A (en) * | 2012-01-20 | 2012-10-03 | 苏州振吴电炉有限公司 | Tower framework of 30t-120t single-electrode electro slag furnace |
| CN102703723A (en) * | 2012-01-20 | 2012-10-03 | 苏州振吴电炉有限公司 | Double-tower constant-melting-rate protective atmosphere electro slag furnace available for three-station alternate smelting |
-
2009
- 2009-01-07 CN CNU2009200387381U patent/CN201334506Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304625A (en) * | 2011-09-09 | 2012-01-04 | 沈阳东大兴科冶金技术有限公司 | Electroslag furnace with special vacuum system |
| CN102703725A (en) * | 2012-01-20 | 2012-10-03 | 苏州振吴电炉有限公司 | Tower framework of 30t-120t single-electrode electro slag furnace |
| CN102703723A (en) * | 2012-01-20 | 2012-10-03 | 苏州振吴电炉有限公司 | Double-tower constant-melting-rate protective atmosphere electro slag furnace available for three-station alternate smelting |
| CN102703725B (en) * | 2012-01-20 | 2013-09-18 | 苏州振吴电炉有限公司 | Tower framework of 30t-120t single-electrode electro slag furnace |
| CN102703723B (en) * | 2012-01-20 | 2014-04-30 | 苏州振吴电炉有限公司 | Double-tower constant-melting-rate protective atmosphere electro slag furnace available for three-station alternate smelting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091028 Effective date of abandoning: 20090107 |