阅读说明：本技术 电渣重熔炉 (Electroslag remelting furnace ) 是由 仇凯 孙腾 董熠 于 2019-08-27 设计创作，主要内容包括：本申请公开了一种电渣重熔炉,该电渣重熔炉包括自耗电极连接机构、结晶器、底板及升降装置,所述自耗电极连接机构和所述底板分别设置在所述结晶器的两侧；所述升降装置分别与所述自耗电极连接机构、所述结晶器及所述底板连接,以通过所述升降装置实现所述自耗电极连接机构、所述结晶器及所述底板之间的相对运动。通过上述方式,本申请电渣重熔炉结构简单,能够降低设备成本。(The application discloses an electroslag remelting furnace, which comprises a consumable electrode connecting mechanism, a crystallizer, a bottom plate and a lifting device, wherein the consumable electrode connecting mechanism and the bottom plate are respectively arranged on two sides of the crystallizer; the lifting device is respectively connected with the consumable electrode connecting mechanism, the crystallizer and the bottom plate, so that the consumable electrode connecting mechanism, the crystallizer and the bottom plate can move relatively through the lifting device. Through the mode, the electroslag remelting furnace is simple in structure and can reduce equipment cost.)

1. An electroslag remelting furnace, characterized in that it comprises:

The consumable electrode connection mechanism and the bottom plate are respectively arranged on two sides of the crystallizer;

And the lifting device is respectively connected with the consumable electrode connecting mechanism, the crystallizer and the bottom plate so as to realize the relative motion among the consumable electrode connecting mechanism, the crystallizer and the bottom plate through the lifting device.

2. Electroslag refining furnace according to claim 1, wherein the bottom plate is fixed in position, the consumable electrode connecting mechanism and the mould are movable in a lifting motion relative to the bottom plate by the lifting device, such that during smelting the mould moves away from the bottom plate and the consumable electrode connecting mechanism moves towards the bottom plate.

3. Electroslag remelting furnace according to claim 1, wherein the mould is fixed in position, and the consumable electrode connection and the base plate are movable by the lifting device in a lifting manner relative to the mould, so that during smelting the consumable electrode connection moves towards the base plate and the base plate moves away from the mould.

4. The electroslag remelting furnace according to any one of claims 1 to 3, wherein the lifting device comprises a feed screw, a plurality of nuts, and a plurality of nut seats, each nut seat is connected to a corresponding nut, and the consumable electrode connecting mechanism, the mold, and the bottom plate are respectively connected to a corresponding nut seat, so that relative movement between the consumable electrode connecting mechanism, the mold, and the bottom plate is achieved by movement of the nuts relative to the feed screw.

5. Electroslag refining furnace according to claim 1, wherein during smelting, the consumable electrode is suspended in connection with the consumable electrode connection device such that the consumable electrode is capable of swinging within a preset range relative to the consumable electrode connection device.

6. The electroslag remelting furnace of claim 1, further comprising a guide mechanism for guiding a consumable electrode deep into the crystallizer during the melting process.

7. Electroslag remelting furnace according to claim 6, wherein the guiding mechanism comprises:

The insulating ring is fixed on one side of the crystallizer facing the consumable electrode connecting mechanism;

The nuts are fixed on the insulating ring at intervals;

And each screw is in threaded connection with the corresponding nut, so that the screw can stretch and contract along the radial direction of the insulating ring, and a guide area is defined, so that the consumable electrode is limited in the guide area and enters the crystallizer through the opening of the insulating ring.

8. Electroslag remelting furnace according to claim 7, wherein the screw comprises:

The rod part is arranged along the radial direction of the insulating ring and is in threaded connection with the corresponding nut;

The head part is fixed at the end part of the rod part, which faces to the ring center of the insulating ring, and is perpendicular to the rod part.

9. Electroslag remelting furnace according to claim 7, wherein the insulating ring is made of insulating ceramic.

10. Electroslag remelting furnace according to claim 1, wherein the bottom plate is a bottom water tank for carrying and cooling a metal ingot obtained by melting;

The electroslag remelting furnace further comprises a loading vehicle, wherein the loading vehicle is used for loading the bottom water tank so as to carry the bottom water tank and the metal ingots formed on the bottom water tank after smelting is finished.

Technical Field

The application relates to the technical field of electroslag smelting, in particular to an electroslag remelting furnace.

Background

The steel is an important material essential for national construction and realization of quartification. The steel material has the characteristics of rich resources, large production scale, easy processing, various and reliable performances, low price, convenient use, convenient recovery and the like, and is a material widely used in industrial production and people's life.

The smelting method of steel materials is various, wherein electroslag remelting is a refining process for secondarily remelting steel by utilizing a large amount of joule heat generated by passing current through slag. It can effectively remove non-metallic inclusion in steel and reduce the content of harmful substances such as sulfur, etc.

Disclosure of Invention

The technical problem that this application mainly solved provides an electroslag remelting furnace, and simple structure can reduce equipment cost.

In order to solve the technical problem, the application adopts a technical scheme that: there is provided an electroslag remelting furnace comprising: the consumable electrode connection mechanism and the bottom plate are respectively arranged on two sides of the crystallizer; and the lifting device is respectively connected with the consumable electrode connecting mechanism, the crystallizer and the bottom plate so as to realize the relative motion among the consumable electrode connecting mechanism, the crystallizer and the bottom plate through the lifting device.

Specifically, the bottom plate is fixed in position, the consumable electrode connecting mechanism and the crystallizer can move in a lifting mode relative to the bottom plate through the lifting device, so that in the smelting process, the crystallizer moves away from the bottom plate, and the consumable electrode connecting mechanism moves towards the bottom plate.

Specifically, the crystallizer is fixed in position, the consumable electrode connecting mechanism and the bottom plate can move in a lifting mode relative to the crystallizer through the lifting device, so that in the smelting process, the consumable electrode connecting mechanism moves towards the bottom plate, and the bottom plate moves away from the crystallizer.

the lifting device comprises a screw rod, a plurality of nuts and a plurality of nut seats, each nut seat is connected with the corresponding nut, and the consumable electrode connecting mechanism, the crystallizer and the bottom plate are respectively connected with the corresponding nut seats, so that the relative motion among the consumable electrode connecting mechanism, the crystallizer and the bottom plate is realized through the rotation of the nuts relative to the screw rod.

During the smelting process, the consumable electrode is suspended and connected with the consumable electrode connecting device, so that the consumable electrode can swing within a preset range relative to the consumable electrode connecting device.

Further, the electroslag remelting furnace also comprises a guide mechanism, and the guide mechanism is used for guiding the consumable electrode in the smelting process so as to enable the consumable electrode to be deep into the crystallizer.

Specifically, the guide mechanism includes: the insulating ring is fixed on one side of the crystallizer facing the consumable electrode connecting mechanism; the nuts are fixed on the insulating ring at intervals; and each screw is in threaded connection with the corresponding nut, so that the screw can stretch and contract along the radial direction of the insulating ring, and a guide area is defined, so that the consumable electrode is limited in the guide area and enters the crystallizer through the opening of the insulating ring.

Specifically, the screw includes: the rod part is arranged along the radial direction of the insulating ring and is in threaded connection with the corresponding nut; the head part is fixed at the end part of the rod part, which faces to the ring center of the insulating ring, and is perpendicular to the rod part.

The insulating ring is made of insulating ceramic.

Further, the bottom plate is a bottom water tank and is used for bearing metal ingots obtained by smelting and cooling the metal ingots; the electroslag remelting furnace further comprises a loading vehicle, wherein the loading vehicle is used for loading the bottom water tank so as to carry the bottom water tank and the metal ingots formed on the bottom water tank after smelting is finished.

The beneficial effect of this application is: be different from prior art's condition, this application electroslag remelting furnace includes consumable electrode coupling mechanism, crystallizer, bottom plate and elevating gear, and wherein, consumable electrode coupling mechanism and bottom plate set up respectively in the both sides of crystallizer, and the three all is connected with elevating gear to can realize the relative motion between consumable electrode coupling mechanism, crystallizer and the bottom plate through elevating gear, whole equipment adopts an elevating gear, and equipment structure is comparatively simple, can reduce equipment cost.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:

FIG. 1 is a schematic structural diagram of an embodiment of an electroslag remelting furnace according to the present application;

Fig. 2 is a schematic structural diagram of a guide mechanism in an embodiment of an electroslag remelting furnace according to the present application.

Detailed Description

the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

An electroslag remelting furnace is a device for remelting metal using the heat energy generated by passing a current through a high resistance slag. The working principle of electroslag remelting is as follows: the metal produced by the common smelting method is cast or forged into a consumable electrode, and the consumable electrode is inserted into the electroslag in a high-temperature molten state in the crystallizer. The low voltage and high current output by the transformer pass through the consumable electrode, the slag bath, the metal molten bath, the cast ingot and the bottom plate and then return to the power grid to form a loop. The consumable electrode is melted by resistance heat of the molten electroslag, the molten metal forms a film along the conical head, the metal trickle slides along the conical surface and is converged into metal liquid drops at the end head, the metal liquid drops formed under the action of gravity and electromagnetic drawing effect drop from the consumable end and pass through the slag bath to form a metal molten pool on the bottom plate, and then the metal molten pool is crystallized and solidified into an ingot. In the stage of forming the liquid drops at the end of the consumable electrode, the stage of dropping the liquid drops through a slag bath and the stage of a metal molten bath, steel-slag is fully contacted, and non-metallic inclusions in the steel are absorbed by electroslag, so that the secondary refining of the metal is realized. The crystallizer is a main body of the electroslag remelting furnace, and the whole metal smelting and solidifying process is carried out in the crystallizer. The consumable electrode is melted in the high-temperature environment provided by the crystallizer, and the molten metal drops are solidified and crystallized in the low-temperature environment provided by the crystallizer to form metal ingots.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of an electroslag remelting furnace according to the present application. In the present embodiment, the electroslag remelting furnace includes: the consumable electrode connecting mechanism 10, the crystallizer 20, the bottom plate 30 and the lifting device 40 are respectively connected with the lifting device 40, the consumable electrode connecting mechanism 10 is used for connecting the consumable electrode 100, and therefore the relative motion among the consumable electrode 100, the crystallizer 20 and the bottom plate 30 can be realized through the lifting device 40.

Specifically, the consumable electrode connecting mechanism 10 and the bottom plate 30 are respectively disposed at two sides of the mold 20, so that the consumable electrode 100 enters from one side of the mold 20, and after the secondary refining, the formed metal ingot is formed on the bottom plate 30 from the other side of the mold 20.

In the above manner, the electroslag remelting furnace includes the consumable electrode connecting mechanism 10, the crystallizer 20, the bottom plate 30 and the lifting device 40, wherein the consumable electrode connecting mechanism 10 and the bottom plate 30 are respectively disposed on two sides of the crystallizer 20, and the three are connected to the lifting device 40, so that the consumable electrode connecting mechanism 10, the crystallizer 20 and the bottom plate 30 can move relatively through the lifting device 40, the whole apparatus employs one lifting device 40, the apparatus structure is simple, and the apparatus cost can be reduced.

The lifting device 40 may include a lead screw 41, a plurality of nuts 42, and a plurality of nut holders 43. Among them, the nut base 43a is connected to the nut 42a, the nut base 43b is connected to the nut 42b, the nut base 43c is connected to the nut 42c, the consumable electrode connecting mechanism 10 is connected to the nut base 43a, the mold 20 is connected to the nut base 43b, and the base plate 30 is connected to the nut base 43 c. In this embodiment, the consumable electrode connecting mechanism 10, the mold 20, and the bottom plate 30 can be fixed by the lead screw 41, and the nut can be moved and rotated relative to the lead screw 41 to realize relative movement.

Specifically, in an application scenario, the bottom plate 30 is fixed, and the consumable electrode connecting mechanism 10 and the crystallizer 20 can move in a lifting manner relative to the bottom plate 30 through the lifting device 40, so that during a smelting process, the crystallizer 20 moves away from the bottom plate 30, and the consumable electrode connecting mechanism 10 moves towards the bottom plate 30. In the application scenario, the bottom plate 30 is fixed and arranged at the bottom end, so that the longer consumable electrode 100 can be smelted under the condition that the height of a factory building is fixed.

In another application scenario, the mold 20 is fixed, and the consumable electrode connecting mechanism 10 and the bottom plate 30 can move up and down relative to the mold 20 through the lifting device 40, so that during the melting process, the consumable electrode connecting mechanism 10 moves towards the bottom plate 30, and the bottom plate 30 moves away from the mold 20. In the application scenario, the bottom plate 30 needs to move up and down along the screw rod 41, so that the consumable electrode 100 capable of being smelted is relatively short in length under the condition that the height of a factory building is fixed.

it should be noted that in the above application scenario, the position fixing device may also be directly fixed on the screw rod 41 by other means, not necessarily all achieved by the connection of the corresponding nut 42 and the screw rod 41, for example, when the mold 20 is fixed in position, it may be directly fixed on the lifting device 40.

further, the consumable electrode 100 may be suspended to the consumable electrode 100 connection device such that the consumable electrode 100 can swing within a predetermined range relative to the consumable electrode 100 connection device. It should be noted that, since the consumable electrode 100 is not always in a regular cylindrical shape and can be always aligned with the inlet of the mold 20, the consumable electrode 100 is suspended on the consumable electrode 100 connection device, so that the consumable electrode 100 can swing to a certain extent according to the shape change in the smelting process, and can be aligned with the inlet of the mold 20.

it should be noted that, because the consumable electrode 100 is suspended, the consumable electrode 100 may be influenced by electromagnetic interference and move relative to the mold 20 during the melting process. In order to further maintain the stable smelting, the electroslag remelting furnace further comprises a guiding mechanism 50, wherein the guiding mechanism 50 is used for guiding the consumable electrode 100 during the smelting process so that the consumable electrode 100 extends into the crystallizer 20.

Referring to fig. 2, the guiding mechanism 50 may be disposed on a side of the mold 20 facing the consumable electrode connecting mechanism 10, and specifically, the guiding mechanism 50 may include: an insulating ring 51, a plurality of nuts 52, and a plurality of screws 53.

The insulating ring 51 may be fixed to a side of the mold 20 facing the consumable electrode connecting mechanism 10, and may be specifically fixed to the mold 20 by a plurality of nuts 52, where the number of the nuts 52 is not limited, and may be, for example, three, four, five, and the like. In addition, the material of the insulating ring 51 may be insulating ceramic or other insulating materials.

A plurality of nuts 52 may be fixed to the insulating ring 51 at intervals, and each screw 53 is threadedly engaged with the corresponding nut 52, thereby allowing the screw 53 to be extended and contracted in the radial direction of the insulating ring 51. It should be noted that, in the present embodiment, the number of the screws 53 and the nuts 52 is not limited specifically, for example, the number of the screws 53 and the nuts 52 is four, and four pairs of the nuts 52 and the screws 53 are arranged at intervals of 90 °.

further, the plurality of screws 53 together define a guiding area 54, and the guiding area 54 is located on the side of the mold 20 facing the consumable electrode connecting mechanism 10 and corresponds to the entrance of the mold 20, so as to limit the consumable electrode 100 in the guiding area 54 and further enter the mold 20 through the opening of the insulating ring 51.

Specifically, the screw 53 may include a stem 531 and a head 532. The rod part 531 is arranged along the radial direction of the insulating ring 51 and is in threaded connection with the corresponding nut 52; the head 532 is fixed to an end of the rod 531 facing the center of the insulating ring 51, and is disposed perpendicular to the rod 531 so as to be disposed in a T-shape with respect to the rod 531.

wherein the guide area 54 is defined by the heads 532 of the plurality of screws 53, the consumable electrode 100 can contact with the heads 532 of the screws 53 to be limited in the guide area 54 during the smelting process, so as to smoothly enter the crystallizer 20.

It should be noted that, in actual use, since the diameters of different consumable electrodes 100 may be different, the size of the guide area 54 can be adjusted to meet consumable electrodes 100 of different sizes by manually adjusting or mechanically adjusting the screw 53 to extend and retract along the radial direction of the insulating ring 51.

Further, the bottom plate 30 may be a bottom water tank for carrying the ingot obtained by melting and cooling the ingot.

In one application scenario, the electroslag remelting furnace can further comprise a loading vehicle 60, wherein the loading vehicle 60 is used for loading the bottom water tank so as to carry the bottom water tank and the metal ingot formed on the bottom water tank after the melting is finished, thereby facilitating the carrying of the metal ingot after the melting is finished.

The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.