CN104561573A

CN104561573A - Multi-station coaxial electric slag furnace short network device

Info

Publication number: CN104561573A
Application number: CN201410839662.8A
Authority: CN
Inventors: 朱兴发; 李亚逸; 胡江; 高玉龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-12-30
Filing date: 2014-12-30
Publication date: 2015-04-29
Anticipated expiration: 2034-12-30
Also published as: CN104561573B

Abstract

The invention discloses a multi-station coaxial electric slag furnace short network device. The device is structurally characterized in that a conductive structure of a main station comprises a phase a of a transformer 1, a first conductive main copper bar 2, a first conductive branch copper bar 3, a first conductive copper tube 4, a first copper sheet flexible connection 5, a bottom water tank 7, a consumable electrode 9, an auxiliary electrode 10, a conductive material rod 11, a high-current coaxial sliding conductive current collecting device 12, a second copper sheet flexible connection 13, a furnace conductive copper bar 14, a third copper sheet flexible connection 15, an upper conductive contact 16, a lower conductive contact 17, a second conductive copper tube 18, a second conductive branch copper bar 20, a second conductive main copper sheet 21 and a phase x of the transformer 1, and all the components are sequentially connected. The multi-station coaxial electric slag furnace short network device has the advantages as follows: 1), furnace rotation and movement are not limited by water-cooling cables; 2), the production cost is reduced; 3), the manufacturing cost of equipment is reduced; 4), the productivity of the equipment is increased; 5), the water-cooling cables and cooling water pipes are not required to be suspended on the furnace; 6), the overall conductive structure of a short network is safe and reliable.

Description

Multi-work-station coaxial electrical slag hearth short-net device

Technical field

What the present invention relates to is multi-work-station coaxial electrical slag hearth short-net device, belongs to extraordinary metallurgical equipment technology field.

Background technology

Along with developing rapidly of domestic and international material industry, the demand for the high-end smelting equipment of large-tonnage is day by day strong.Therefore, large-scale electroslag remelting furnace arises at the historic moment, and country advocates energy-conservation environmental protection industry energetically at present, so large by traditional design and manufacturing technology difficulty, cost is high.

1, domestic traditional electroslag furnace equipment is single column support arm type, two column rotating arm formula double electroslag furnace, support arm clamp holder clamping dummy electrode and metal electrode, controls transmission mechanism turning T-type screw mandrel and drives roller cantilever to move up and down melting.

2, the transformer of existing domestic electroslag furnace or external import electroslag furnace connects to the short net conduction of burner, all adopts water-cooled cable structure.And the conductive site that body of heater much needs be flexible coupling all have employed water-cooled cable structure.As needed the big current by 18000A ~ 45000A in electroslag furnace technological design, therefore water-cooled cable needs very large conductive section, produced like this water-cooled cable is thick, stiff, the angle of electroslag furnace equipment multiple-station rotation and the displacement of movement cannot be met, and water-cooled cable is vulnerable to bending and suppresses strength, cause the not smooth or booster of current of the inside, thus affect conductivity, even can lead to even more serious consequence.And heavy in section water-cooled cable manufacture difficulty is large, production cost is high, installs with routine maintenance all inconvenient.And water-cooled cable is used as the conduction that is flexible coupling in many places on body of heater, such water-cooled cable needs larger installing space when installing, so short net effectivelyly can not accomplish coaxial or parallel wiring, therefore improve the power consumption of steel per ton and increase production cost.

Summary of the invention

What the present invention proposed is multi-work-station coaxial electrical slag hearth short-net device, and its object is intended to the problem solving water-cooled cable restriction body of heater angle of rotation and mobile displacement, reduces short net pressure drop and power consumption, reduces production cost and equipment running cost.

1, technical solution of the present invention: multi-work-station coaxial electrical slag hearth short-net device, its structure is: comprise main station, secondary station, wherein main station conductive structure is by a phase of transformer, the main copper bar of first conduction, A first conducts electricity and divides a copper bar, A first contact tube, A first copper sheet is flexible coupling, water tank at the bottom of A, A consumable electrode, A supporting electrode, conductive material bar, the coaxial sliding conduction current collecting equipment of big current, second copper sheet is flexible coupling, body of heater conducting copper, 3rd copper sheet is flexible coupling, upper guide electrical contact, A lower guide electrical contact, A second contact tube, A second conducts electricity and divides a copper bar, the x phase of the second main copper bar of conduction and transformer is connected in sequence,

Secondary station conductive structure is by a phase of transformer, the main copper bar of first conduction, 3rd conducting copper, B first conducts electricity and divides a copper bar, B first contact tube, B first copper sheet is flexible coupling, water tank at the bottom of B, B consumable electrode, B supporting electrode, conductive material bar, the coaxial sliding conduction current collecting equipment of big current, second copper sheet is flexible coupling, body of heater conducting copper, 3rd copper sheet is flexible coupling, upper guide electrical contact, B lower guide electrical contact, B second contact tube, 2nd B conduction point copper bar, 4th conducting copper, the x phase of the second main copper bar of conduction and transformer is connected in sequence.

Advantage of the present invention: 1) body of heater rotates and mobile pining down not by water-cooled cable, can move freely by design needs completely; 2) reduce the pressure drop of overall short net system, reduce the power consumption of steel per ton, thus reduce production cost; 3) manufacturing cost of equipment is reduced; 4) water-cooled cable belongs to wearing detail, and after 1 ~ 2 year usage period, all can change, each maintenance downtime is long, costly.After water-cooled cable is cancelled, this expense that equipment use unit saves, and improve the productivity of equipment; 5) body of heater does not need suspension water-cooling cable and water-cooled tube, therefore body of heater overall appearance, neatly.6) short net monolithic conductive structural safety is reliable.

Accompanying drawing explanation

Accompanying drawing 1-1 is the structural representation of multi-work-station coaxial electrical slag hearth short-net device.

Accompanying drawing 1-2 is part A schematic diagram in accompanying drawing 1-1.

Accompanying drawing 1-3 is B-B schematic diagram in accompanying drawing 1-1.

Accompanying drawing 2 is schematic top plan view of multi-work-station coaxial electrical slag hearth.(illustrate three stations, centre is main station 24, alternately can smelt more than 25 tons large-tonnage steel ingots; The left side is secondary station 26, and for giving the heating of alternating electrode head, this station also can be used as time station and smelts; The right is time station 25, can when the cold 4 ~ 6h of main station smelting end mould, and the little tonnage carrying out single burner smelts (less than 20 tons), boosts productivity.）

In figure 1 is transformer, 2 is the main copper bars of the first conduction, 3 is that the first conduction divides copper bar, 4 is first contact tubes, 5 is that the first copper sheet is flexible coupling, 6 is underframe, 7 is end water tanks, 8 is crystallizers, 9 is consumable electrodes, 10 is supporting electrodes, 11 is conductive material bars, 12 is the coaxial sliding conduction current collecting equipments of big current, 13 is that the second copper sheet is flexible coupling, 14 is body of heater conducting coppers, 15 is that the 3rd copper sheet is flexible coupling, 16 is upper guide electrical contacts, 17 is lower guide electrical contacts, 18 is second contact tubes, 19 is collets, 20 is that the second conduction divides copper bar, 21 is the main copper bars of the second conduction, 22 is rotating furnace bodies, 23 is upper guide electrical contact lifting cylinders, 24 is main station (large stations), 25 is time stations (little station), 26 is secondary station (electrode head process furnace), 27 is demouldings place of large station, 28 the 3rd conducting coppers, 29 the 4th conducting coppers.

Embodiment

Contrast accompanying drawing, multi-work-station coaxial electrical slag hearth short-net device, its structure is: comprise main station 24, secondary station 25, wherein main station 24 conductive structure is by a phase of transformer 1, the main copper bar 2 of first conduction, A first conducts electricity and divides a copper bar 3, A first contact tube 4, A first copper sheet is flexible coupling 5, water tank 7 at the bottom of A, A consumable electrode 9, A supporting electrode 10, conductive material bar 11, the coaxial sliding conduction current collecting equipment 12 of big current, second copper sheet is flexible coupling 13, body of heater conducting copper 14, 3rd copper sheet is flexible coupling 15, upper guide electrical contact 16, A lower guide electrical contact 17, A second contact tube 18, A second conducts electricity and divides a copper bar 20, the x phase of the second main copper bar 21 of conduction and transformer 1 is connected in sequence.

Secondary station 25 conductive structure is by a phase of transformer 1, the main copper bar 2 of first conduction, 3rd conducting copper 28, B first conducts electricity and divides a copper bar 3 ', B first contact tube 4 ', B first copper sheet is flexible coupling 5 ', water tank 7 ' at the bottom of B, B consumable electrode 9 ', B supporting electrode 10 ', conductive material bar 11, the coaxial sliding conduction current collecting equipment 12 of big current, second copper sheet is flexible coupling 13, body of heater conducting copper 14, 3rd copper sheet is flexible coupling 15, upper guide electrical contact 16, B lower guide electrical contact 17 ', B second contact tube 18 ', 2nd B conduction point copper bar 20 ', 4th conducting copper 29, the x phase of the second main copper bar 21 of conduction and transformer 1 is connected in sequence.

Described a phase conducting copper and x phase conducting copper parallel wiring, between copper bar, gap is 5 ~ 10mm.

The structure that described main station 24 moves to time station 25 is connected successively formed by main station 24, upper guide electrical contact lifting cylinder 23, upper guide electrical contact 16, lower guide electrical contact 17, rotating furnace body 22, secondary station 25, upper guide electrical contact lifting cylinder 23, upper guide electrical contact 16, B lower guide electrical contact 17 ', and its operation steps is as follows:

1) after the melting of main station 24 terminates;

2) upper guide electrical contact lifting cylinder 23 promotes;

3) upper guide electrical contact 16 moves upward;

4) upper guide electrical contact 16 departs from the lower guide electrical contact 17 of main station;

5) rotating furnace body 22 moves;

6) secondary station 25;

7) upper guide electrical contact lifting cylinder 23 declines;

8) upper guide electrical contact 16 moves downward;

9) upper guide electrical contact 16 and time station blower guide electrical contact 17 ' closes;

10) galvanic circle of above-mentioned Article 1 is formed.

Claims

1. multi-work-station coaxial electrical slag hearth short-net device, it is characterized in that: comprise main station, secondary station, wherein main station conductive structure is by a phase of transformer, the main copper bar of first conduction, A first conducts electricity and divides a copper bar, A first contact tube, A first copper sheet is flexible coupling, water tank at the bottom of A, A consumable electrode, A supporting electrode, conductive material bar, the coaxial sliding conduction current collecting equipment of big current, second copper sheet is flexible coupling, body of heater conducting copper, 3rd copper sheet is flexible coupling, upper guide electrical contact, A lower guide electrical contact, A second contact tube, A second conducts electricity and divides a copper bar, the x phase of the second main copper bar of conduction and transformer is connected in sequence,

2. multi-work-station coaxial electrical slag hearth short-net device according to claim 1, it is characterized in that described a phase conducting copper and x phase conducting copper parallel wiring, between copper bar, gap is 5 ~ 10mm.

3. multi-work-station coaxial electrical slag hearth short-net device according to claim 1, it is characterized in that the structure that described main station moves to time station is connected successively formed by main station, upper guide electrical contact lifting cylinder, upper guide electrical contact, lower guide electrical contact, rotating furnace body, secondary station, upper guide electrical contact lifting cylinder, upper guide electrical contact, B lower guide electrical contact, its operation steps is as follows:

1) after main station melting terminates;

2) upper guide electrical contact lifting cylinder promotes;

3) upper guide electrical contact moves upward;

4) the lower guide electrical contact of upper guide electrical contact and main station departs from;

5) rotating furnace body moves;

6) secondary station;

7) upper guide electrical contact lifting cylinder declines;

8) upper guide electrical contact moves downward;

9) upper guide electrical contact and time station blower guide is electrical contacts closed;

10) galvanic circle of above-mentioned Article 1 is formed.