CN214060599U - Electroslag remelting production system - Google Patents

Abstract

The utility model belongs to the technical field of the electroslag equipment of remelting, concretely relates to electroslag production system of remelting, including electrode elevating system and crystallizer, electrode elevating system set up two sets ofly, set up the left and right sides at the crystallizer respectively, electrode elevating system include the stand, be equipped with the electrode fixture of liftable on the stand, the stand is rotatable to be set up between the frame at top and the base of bottom, the stand of both sides is synchronous to be rotated. The utility model discloses the stand of both sides is in electroslag station and clamping station in turn, uninterrupted duty in succession. The crystallizer in the system can increase the disorder and flow mixing of the cooling water when the cooling water flows through the water cooling cavity of the crystallizer, thereby avoiding the generation of fluid dead angles, ensuring uniform distribution of cooling water paths, fully utilizing the circulating cooling water, having high cooling efficiency, good cooling effect, greatly improving the product quality and meeting the production requirement.

Description

Electroslag remelting production system

Technical Field

The utility model relates to an electroslag remelting production system belongs to electroslag remelting equipment technical field.

Background

Electroslag remelting is a method of melting using resistance heat generated when current passes through slag as a heat source. The purpose is to improve the purity of metal and improve ingot casting crystallization. Electroslag remelting steel is increasingly widely applied due to good quality and longer service life, particularly widely applied to aerospace and various military products, and also widely applied to civil industry in recent years. When remelting, the consumable electrode bar is fixed on a cross arm of the electrode lifting mechanism, and a chuck on the cross arm clamps the consumable electrode and inserts the consumable electrode into the slag bath; the consumable electrode, the slag pool, the metal molten pool, the cast ingot and the bottom water tank form a loop through a short-net cable and a transformer; the slag pool is heated to high temperature by the resistance of the slag pool, the end part of the consumable electrode is heated and melted by the slag to form metal molten drops, and then the metal molten drops fall off and pass through the slag pool to enter the metal molten pool; due to the forced cooling effect of the water-cooled crystallizer, the liquid metal is rapidly solidified to form a spindle, and the ingot is sequentially solidified from bottom to top.

However, the existing equipment has the following defects: 1. the traditional production mode is that after the consumable electrode bar is consumed, a new consumable electrode bar is replaced at the chuck, and the electroslag remelting work is continuously carried out. Because the installation of new electrode bar needs to consume certain time, cause intermittent type nature production, reduced production efficiency. 2. The flowing cold water is filled between the inner cylinder and the outer cylinder of the electroslag remelting crystallizer and used for cooling, the flow direction of the cooling water flows upwards from the bottom, so that the water cooling cavity is filled with the cooling water, but the outer cylinder of the existing crystallizer is respectively provided with a water inlet and a water outlet, fluid dead angles are easily generated by the arrangement, the fluid in a certain part of the water cooling cavity flows slowly or even does not flow, the fluid in the part loses the heat exchange and cooling effects, the circulating cooling water cannot be fully utilized, the cooling efficiency is low, the cooling effect is not good, and the product quality is greatly influenced.

SUMMERY OF THE UTILITY MODEL

According to the not enough among the above prior art, the utility model discloses the technical problem who solves is: the defects of the prior art are overcome, and an electroslag remelting production system is provided to solve the problems.

Electroslag remelting production system, including electrode elevating system and crystallizer, electrode elevating system set up two sets ofly, set up the left and right sides at the crystallizer respectively, electrode elevating system include the stand, be equipped with the electrode fixture of liftable on the stand, the rotatable setting of stand is between the frame at top and the base of bottom, the stand of both sides rotates in step.

The upright posts on two sides rotate synchronously, and when the electrode lifting mechanism on the upright post on one side clamps the consumable electrode bar through the electrode clamping mechanism to carry out electroslag remelting, the electrode lifting mechanism on the upright post descends after rotating to an electroslag remelting station (namely the position of a crystallizer); and the electrode lifting mechanism on the upright column on the other side synchronously turns to the side (clamping station) to clamp the new electrode bar. The two sides are alternately carried out, and continuous uninterrupted work can be realized.

The top end of the upright post of the utility model is provided with a rotating shaft fixedly connected with the upright post; a rotating motor is arranged on the rack and connected with a driving transverse moving lead screw, a transverse moving slide block is arranged on the transverse moving lead screw, a shaft sleeve which can rotate relative to the transverse moving slide block is arranged on the transverse moving slide block, the shaft sleeve is connected with a swing shaft in a sliding manner, and one end of the swing shaft is fixedly connected with the rotating shaft; the transverse sliding blocks on two sides are arranged on the same transverse screw rod, so that the upright posts on two sides rotate synchronously.

The electrode clamping mechanism comprises a lifting slide block arranged on a stand column, the lifting slide block is connected with a transverse arm, the head end of the transverse arm is provided with a concave-shaped positioning claw, rotatable clamping jaws are embedded into two sides of the middle part of the concave-shaped positioning claw, and the clamping jaws are driven by a hydraulic cylinder fixed at the top of the transverse arm; the lifting slide block is connected with a lifting screw rod, the lifting screw rod is driven by a lifting motor fixed below the upright post, and the lifting slide block is driven to move up and down through the lifting screw rod. The utility model discloses a character cut in bas-relief shape positioning pawl fixes a position consumable electrode stick, carries out the centre gripping through the clamping jaw to consumable electrode stick and fixes, and the synergism guarantees that the electrode stick centre gripping is firm, and prevents that it from taking place the incline.

The crystallizer comprises an outer wall and an inner wall, wherein a slag pool is arranged on the inner side of the inner wall, a closed annular water cooling cavity is formed between the outer wall and the inner wall, two water inlets are arranged at the lower part of the water cooling cavity, and the two water inlets are respectively arranged at two sides of the water cooling crystallizer; the upper part of the water-cooling cavity is provided with two water outlets which are respectively arranged at two sides of the water-cooling crystallizer; the connecting line between the two water inlets and the connecting line between the two water outlets are in a cross shape. The utility model discloses set up two water inlets and two delivery ports respectively in water-cooling crystallizer lower part and upper portion, see (as shown in fig. 9) from the plan view, line between two water inlets and the line between two delivery ports are cross form, make the cooling water when the flow-through water-cooling chamber, fluidic disorder nature and the mixed disorder nature increase of flow avoid forming the fluid dead angle in the water-cooling chamber, have improved heat transfer cooling effect greatly.

The utility model discloses in, the water inlet direction of two water inlets and the play water direction of two delivery ports all are tangent with the water-cooling chamber. This structure can be so that the cooling water forms the rotation in the water-cooling chamber, and when the cooling water flowed from the bottom up, the fluid formed the heliciform and risen, and the fluid of this mode not only can avoid forming the fluid dead angle in the water-cooling chamber, but also increased the route of flowing through of cooling water, made the heat transfer time extension of cooling water in the water-cooling intracavity, improved the utilization ratio of cooling water, further improved the cooling effect. And the fluid rises spirally, the cooling heat exchange surface is uniform, so that the cast ingot in the slag pool is uniformly cooled from bottom to top, the cooling effect is uniform, the cooling effect is very good, and the product quality is greatly improved.

Preferably, one side of the crystallizer is provided with a flue gas collecting device for collecting waste gas generated in the electroslag remelting process.

The flue gas collection device include flexible collection portion, rotate connecting portion and fixed pipe, flexible collection portion slides and sets up and form extending structure on rotating connecting portion, rotate connecting portion and rotate and set up on fixed pipe, flexible collection portion is perpendicular with fixed pipe, makes flue gas collection device form the L shape of invering. The telescopic collecting part and the rotary connecting part form a telescopic flue gas collecting channel, so that the installation and adjustment of equipment are facilitated.

The telescopic collecting part comprises a half-moon-shaped collecting port and a rectangular inner tube which are fixedly connected together; the rotary connecting part comprises a rectangular sleeve and a circular inner pipe which are fixedly connected together, and the axes of the rectangular sleeve and the circular inner pipe are vertical; the outer dimension of the rectangular inner tube is equal to the inner dimension of the rectangular sleeve, the rectangular inner tube is arranged in the rectangular sleeve in a sliding mode, the outer diameter of the circular inner tube is equal to the inner diameter of the fixed tube, and the circular inner tube is arranged in the fixed tube in a rotating mode. Simple structure, convenient processing and manufacturing of each part and simple and convenient and easy connection mode.

The rectangular inner tube and the rectangular sleeve are provided with lifting handles, so that the installation and the adjustment are convenient.

Compared with the prior art, the utility model beneficial effect who has is:

electroslag remelting production system, the stand of both sides rotates in step, is located electroslag remelting station and clamping station in turn, uninterrupted duty in succession. The utility model discloses a crystallizer simple structure, design benefit makes the cooling water when the water-cooling chamber of flow through the crystallizer, and fluidic disorder nature and the increase of mobile confusion avoid producing the fluid dead angle, and the cooling water route distributes evenly, makes the cooling water of circulation obtain make full use of, and cooling efficiency is high, and the cooling effect is good, and product quality improves greatly, has satisfied the production needs.

Drawings

Fig. 1 is one of the schematic structural diagrams of the present invention;

fig. 2 is a second schematic structural diagram of the present invention;

FIG. 3 is one of the schematic structural views of the crystallizer;

FIG. 4 is a front view of the crystallizer;

FIG. 5 is a sectional view of a front view of the mold;

FIG. 6 is a second schematic view of the structure of the crystallizer;

FIG. 7 is a third schematic view of the structure of the crystallizer;

FIG. 8 is a fourth schematic view of the structure of the crystallizer;

FIG. 9 is a top view of the crystallizer;

FIG. 10 is a schematic view of the structure of the flue gas collection device;

fig. 11 is a second schematic structural view of the flue gas collection device.

In the figure: 1. a rotating electric machine; 2. transversely moving the lead screw; 3. transversely moving the sliding block; 4. a shaft sleeve; 5. a pendulum shaft; 6. a rotating shaft; 7. a frame; 8. a column; 9. a lifting slide block; 10. a cross arm; 11. a lifting motor; 12. a hydraulic cylinder; 13. a clamping jaw; 14. a concave positioning claw; 15. a consumable electrode rod; 16. a crystallizer; 17. a flue gas collection device; 18. lifting a screw rod; 19. a slag pool; 20. a first water outlet pipe; 21. a second water outlet pipe; 22. a first water inlet pipe; 23. a second water inlet pipe; 24. an outer wall; 25. a sewage draining outlet; 26. lifting lugs; 27. a fixing plate; 28. a first water inlet; 29. a second water inlet; 30. a first water outlet; 31. a second water outlet; 32. an inner wall; 33. a water-cooled cavity; 34. a telescopic collection part; 35. a rotation connecting part; 36. a fixed tube; 37. a half-moon shaped collection port; 38. a rectangular inner tube; 39. a rectangular sleeve; 40. lifting the handle; 41. a circular inner tube.

Detailed Description

The invention will be further described with reference to the following examples:

as shown in fig. 1-11, electroslag remelting production system, including electrode elevating system and crystallizer 16, electrode elevating system set up two sets ofly, set up the left and right sides at crystallizer 16 respectively, electrode elevating system include stand 8, be equipped with the electrode fixture of liftable on the stand 8, the stand 8 is rotatable to be set up between the base of frame 7 and the bottom at top, the stand 8 synchronous rotation of both sides.

The top end of the upright post 8 is provided with a rotating shaft 6 fixedly connected with the upright post 8; a rotating motor 1 is arranged on the rack 7, the rotating motor 1 is connected with a driving transverse moving lead screw 2, a transverse moving slide block 3 is arranged on the transverse moving lead screw 2, a shaft sleeve 4 which can rotate relative to the transverse moving slide block 3 is arranged on the transverse moving slide block 3, the shaft sleeve 4 is connected with a swing shaft 5 in a sliding manner, and one end of the swing shaft 5 is fixedly connected with the rotating shaft 6; the transverse sliding blocks 3 on two sides are arranged on the same transverse screw rod 2.

The electrode clamping mechanism comprises a lifting slide block 9 arranged on an upright post 8, the lifting slide block 9 is connected with a cross arm 10, the head end of the cross arm 10 is provided with a concave positioning claw 14, two rotatable clamping jaws 13 are embedded in two sides of the middle part of the concave positioning claw 14, and the clamping jaws 13 are driven by a hydraulic cylinder 12 fixed at the top of the cross arm 10; the lifting slide block 9 is connected with a lifting screw 18, and the lifting screw 18 is driven by a lifting motor 11 fixed below the upright post 8.

The crystallizer 16 of the embodiment comprises an outer wall 24 and an inner wall 32, wherein a slag pool 19 is arranged inside the inner wall 32, a closed annular water-cooling cavity 33 is formed between the outer wall 24 and the inner wall 32, and two water inlets are respectively arranged at two sides of the crystallizer 16 and at the lower part of the water-cooling cavity 33; the upper part of the water-cooling cavity 33 is provided with two water outlets which are respectively arranged at two sides of the crystallizer 16; the connecting line between the two water inlets and the connecting line between the two water outlets are in a cross shape, and the water inlet directions of the two water inlets and the water outlet directions of the two water outlets are tangent to the water cooling cavity 33.

The two water inlets are a first water inlet 28 and a second water inlet 29, and the first water inlet 28 and the second water inlet 29 are respectively connected with the first water inlet pipe 22 and the second water inlet pipe 23 through welding; the two water outlets are a first water outlet 30 and a second water outlet 31, and the first water outlet 30 and the second water outlet 31 are respectively connected with a first water outlet pipe 20 and a second water outlet pipe 21 through welding; the first water outlet pipe 20, the second water outlet pipe 21, the first water inlet pipe 22 and the second water inlet pipe 23 have pipe openings which are flush with each other, are located at the upper part of the water-cooled crystallizer 16, and are fixed on the outer wall 24 of the water-cooled crystallizer 16 through a fixing plate 27. Because the water-cooling crystallizer 16 is arranged below the working table surface, the structure can facilitate the connection of each water inlet pipe and each water outlet pipe with an external pipeline, and the layout and the installation mode of the system are more reasonable.

And the outer wall 24 is also provided with a drain outlet 25, after long-time use, each water outlet can be closed, and the drain outlet 25 is opened to drain impurities and the like remained in the water cooling cavity 33. Lifting lugs 26 are further arranged on the outer wall 24, and the lifting lugs 26 are symmetrically arranged on two sides of the outer wall 24, so that equipment can be conveniently lifted.

The crystallizer 16 of this embodiment is provided with a flue gas collecting device 17 at one side.

Wherein, flue gas collection device 17 includes flexible collection portion 34, rotates connecting portion 35 and fixed pipe 36, and flexible collection portion 34 slides and sets up and form extending structure on rotating connecting portion 35, rotates connecting portion 35 and rotates and set up on fixed pipe 36, and flexible collection portion 34 is perpendicular with fixed pipe 36, makes flue gas collection device 17 form the L shape of invering.

Further, the telescopic collecting portion 34 includes a half-moon-shaped collecting port 37 and a rectangular inner tube 38 which are fixedly attached together; the rotary connecting part 35 comprises a rectangular sleeve 39 and a circular inner pipe 41 which are fixedly connected together, and the axes of the rectangular sleeve 39 and the circular inner pipe 41 are vertical; the external dimension of the rectangular inner tube 38 is equal to the internal dimension of the rectangular sleeve 39, the rectangular inner tube 38 is slidably arranged in the rectangular sleeve 39, the external diameter of the circular inner tube 41 is equal to the internal diameter of the fixed tube 36, and the circular inner tube 41 is rotatably arranged in the fixed tube 36. The rectangular inner tube 38 and the rectangular sleeve 39 are provided with a lifting handle 40.

Utility model's working process or principle:

the upright columns 8 on two sides rotate synchronously, and when the electrode lifting mechanism on the upright column 8 on one side clamps the consumable electrode bar 15 through the electrode clamping mechanism for electroslag remelting, the electrode lifting mechanism on the upright column 8 descends after rotating to an electroslag remelting station (namely the position of the crystallizer 16); the electrode lifting mechanism on the upright post 8 at the other side synchronously turns to the side (clamping station) to clamp the new electrode bar. The two sides are alternately carried out, and continuous uninterrupted work can be realized. Specifically, the rotating motor 1 rotates to drive the transverse moving lead screw 2 to rotate, so that the two transverse moving sliding blocks 3 on the transverse moving lead screw 2 move left and right, and the two transverse moving sliding blocks 3 respectively drive the swing shafts 5 connected with the two transverse moving sliding blocks to swing through the shaft sleeves 4, so that the synchronous rotation of the stand columns 8 on the two sides is realized. The lifting motor 11 rotates to drive the lifting screw 18 to rotate, so that the lifting slide block 9 on the lifting screw 18 moves up and down, and the consumable electrode rod 15 clamped at the front end of the cross arm 10 is lifted.

The lower part and the upper part of the water-cooled crystallizer 16 are respectively provided with two water inlets and two water outlets, and a connecting line between the two water inlets and a connecting line between the two water outlets are in a cross shape when seen from a plan view (as shown in fig. 9), so that when cooling water flows through the water-cooled cavity 33, the disorder and the flow mixing of the fluid are increased, the formation of fluid dead corners in the water-cooled cavity 33 is avoided, and the heat exchange and cooling effects are greatly improved. The water inlet direction of two water inlets and the play water direction of two delivery ports all are tangent with water-cooling chamber 33, this structure can be so that the cooling water forms the rotation in water-cooling chamber 33, when the cooling water up flows from the bottom, the fluid forms the heliciform and rises, the fluid of this mode not only can avoid forming the fluid dead angle in water-cooling chamber 33, but also increased the route of flowing through of cooling water, make the heat transfer time extension of cooling water in water-cooling chamber 33, the utilization ratio of cooling water is improved, the cooling effect has further been improved. And the fluid rises spirally, the cooling heat exchange surface is uniform, so that the cast ingot in the slag pool 19 is uniformly cooled from bottom to top, the cooling effect is uniform, the cooling effect is very good, and the product quality is greatly improved.

The flue gas collecting device 17 collects waste gas generated in the electroslag remelting process, and the telescopic collecting part 34 and the rotary connecting part 35 form a telescopic flue gas collecting channel, so that the installation and adjustment of equipment are facilitated.

Claims (9)

1. An electroslag remelting production system comprises an electrode lifting mechanism and a crystallizer (16), and is characterized in that: the electrode lifting mechanisms are arranged in two groups and are respectively arranged on the left side and the right side of the crystallizer (16), each electrode lifting mechanism comprises an upright post (8), a lifting electrode clamping mechanism is arranged on each upright post (8), the upright posts (8) can be rotatably arranged between the rack (7) at the top and the base at the bottom, and the upright posts (8) on the two sides synchronously rotate.

2. The electroslag remelting production system according to claim 1, wherein: the top end of the upright post (8) is provided with a rotating shaft (6) fixedly connected with the upright post (8); a rotating motor (1) is arranged on the rack (7), the rotating motor (1) is connected with and drives the transverse moving lead screw (2), a transverse moving slide block (3) is arranged on the transverse moving lead screw (2), a shaft sleeve (4) which can rotate relative to the transverse moving slide block (3) is arranged on the transverse moving slide block (3), the shaft sleeve (4) is connected with a swing shaft (5) in a sliding manner, and one end of the swing shaft (5) is fixedly connected with the rotating shaft (6); the transverse sliding blocks (3) on two sides are arranged on the same transverse screw rod (2).

3. The electroslag remelting production system according to claim 2, wherein: the electrode clamping mechanism comprises a lifting slide block (9) arranged on an upright post (8), the lifting slide block (9) is connected with a cross arm (10), the head end of the cross arm (10) is provided with a concave positioning claw (14), two rotatable clamping jaws (13) are embedded into two sides of the middle part of the concave positioning claw (14), and the clamping jaws (13) are driven by a hydraulic cylinder (12) fixed at the top of the cross arm (10); the lifting slide block (9) is connected with a lifting screw rod (18), and the lifting screw rod (18) is driven by a lifting motor (11) fixed below the upright post (8).

4. The electroslag remelting production system according to claim 1, wherein: the crystallizer (16) comprises an outer wall (24) and an inner wall (32), a slag pool (19) is arranged on the inner side of the inner wall (32), a closed annular water cooling cavity (33) is formed between the outer wall (24) and the inner wall (32), two water inlets are formed in the lower part of the water cooling cavity (33), and the two water inlets are respectively arranged on two sides of the water-cooling crystallizer; the upper part of the water-cooling cavity (33) is provided with two water outlets which are respectively arranged at two sides of the water-cooling crystallizer; the connecting line between the two water inlets and the connecting line between the two water outlets are in a cross shape.

5. The electroslag remelting production system according to claim 4, wherein: the water inlet directions of the two water inlets and the water outlet directions of the two water outlets are tangent to the water cooling cavity (33).

6. The electroslag remelting production system according to claim 1, wherein: one side of the crystallizer is provided with a flue gas collecting device (17).

7. The electroslag remelting production system according to claim 6, wherein: flue gas collection device (17) including flexible collection portion (34), rotation connecting portion (35) and fixed pipe (36), flexible collection portion (34) slide to set up and form scalable structure on rotating connecting portion (35), rotate connecting portion (35) and rotate and set up on fixed pipe (36), flexible collection portion (34) are perpendicular with fixed pipe (36), make flue gas collection device (17) form the L shape of invering.

8. The electroslag remelting production system according to claim 7, wherein: the telescopic collecting part (34) comprises a half-moon-shaped collecting port (37) and a rectangular inner pipe (38) which are fixedly connected together; the rotary connecting part (35) comprises a rectangular sleeve (39) and a circular inner pipe (41) which are fixedly connected together, and the axes of the rectangular sleeve (39) and the circular inner pipe (41) are vertical; the outer dimension of the rectangular inner pipe (38) is equal to the inner dimension of the rectangular sleeve (39), the rectangular inner pipe (38) is arranged in the rectangular sleeve (39) in a sliding mode, the outer diameter of the circular inner pipe (41) is equal to the inner diameter of the fixed pipe (36), and the circular inner pipe (41) is arranged in the fixed pipe (36) in a rotating mode.

9. The electroslag remelting production system according to claim 8, wherein: the rectangular inner tube (38) and the rectangular sleeve (39) are provided with a lifting handle (40).

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