CN202770174U

CN202770174U - Submerged arc furnace

Info

Publication number: CN202770174U
Application number: CN 201220291805
Authority: CN
Inventors: 李晓新
Original assignee: LIUZHOU JINLUO MACHINERY CO Ltd
Current assignee: LIUZHOU JINLUO MACHINERY CO Ltd
Priority date: 2012-06-20
Filing date: 2012-06-20
Publication date: 2013-03-06
Anticipated expiration: 2022-06-20

Abstract

The utility model relates to the technical field of smelting equipment, and discloses a submerged arc furnace which comprises a furnace body and three electrodes clamped by an electrode holding device, wherein a support seat supporting the electrode holding device is moveably installed on a guide rail which is fixed on a structure; the support seat moves along the guide rail under the drive of a traction screw rod; and the traction screw rod is arranged between the support seat and the structure. The submerged arc furnace has the benefits of driving three electrodes to change positions by the traction screw rod of the support seat to meet the requirement of furnace for smelting a variety of alloys, and realizing the purpose of using one furnace to smelt a variety of alloys to reduce the equipment investment and the field occupation.

Description

Mineral hot furnace

Technical field

The utility model relates to smelting equipment manufacturing technology field, especially a kind of stove for smelting ore.

Background technology

Mineral hot furnace claims again the electric arc electric furnace, is the huge industrial furnace of a kind of power consumption, and it is to make reducing agent reducing and smelting metallic ore with carbon, mainly for the production of ferrosilicon, ferromanganese, the ferroalloys such as ferrochrome, ferrotungsten, silicomangan are a kind of visual plants commonly used in the metallurgical industry.Its work characteristics is to adopt carbonaceous or magnesia refractories to make furnace lining, use from training electrode, electrode inserts furnace charge and carries out arc-covering slag operation, come smelting metal because of the resistance produce power of furnace charge when utilizing the energy of electric arc and electric current by furnace charge, reinforced successively, batch (-type) goes out scum, and production process is worked continuously.Mineral hot furnace is mainly by cupola well, electrode, short net, water-cooling system, smoke evacuation system, loading and unloading system, the compositions such as ore heat furnace transformer and various electric equipments.

The mineral hot furnace of production and usefulness all is to design and order for a certain alloy smelting kind at present, and being used for provides the electrode of high temperature heat source to be generally three electrodes, and the position of three electrodes is fixed, and mostly this mineral hot furnace is for the alloy of smelting single variety.As want conversion to smelt kind then to need to purchase in addition corresponding equipment or existing equipment is transformed; The procuring equipment cost is higher, and need in addition occupied ground, and existing equipment is transformed, a kind of method is in the situation that keep original equipment body of heater, electrode, transformer all constant, can be by changing interelectrode distance and other corresponding parameter, another kind method is not change interelectrode distance and by changing transformer, realizes the change of electric thermal power with increase or the power output that reduces transformer.First method is larger because of electrode, and every that has weighs more than 40 ton, transforms difficulty, and every change is the necessary time with a wheat harvesting period once, and improvement expenses is up to a million; No matter and any remodeling method, both having wasted financial resources also can may the missing the market opportunity because of transformation time length.

The utility model content

Technical problem to be solved in the utility model provides a kind of mineral hot furnace, and it can solve the electrode position of mineral hot furnace and can not regulate, and same mineral hot furnace can not be for the problem of smelting many kinds alloy.

In order to address the above problem, the technical solution of the utility model is: this mineral hot furnace includes body of heater, three electrodes by the clamping of electrode grip device; The supporting seat that supports described electrode grip device is movably arranged on the guide rail, and described guide rail is fixed on the structures; Described supporting seat moves along described guide rail under the driving of traction screw mandrel; Described traction screw mandrel is arranged between described supporting seat and the described structures.

During technique scheme was wanted, more specifically scheme can also be:

Described electrode grip device includes the clamping bracing frame, is mounted with annular air-pocket in described clamping bracing frame; Described annular air-pocket is connected with compressed gas source by pipeline and air valve, and described electrode passes the ring in the described annular air-pocket, and the piston rod of described clamping bracing frame and driving cylinder is hinged, and the cylinder body of described driving cylinder is fixed on the described supporting seat.

Above described bell, around described electrode arrangement the fiery trim ring of mobile gear is arranged.

Owing to adopting technique scheme, the utlity model has following beneficial effect:

In the situation that keep body of heater, electrode, transformer all constant, driving by the described supporting seat of traction fiber pole pair, thereby three electrodes move the distance that realizes between three electrodes with described supporting seat and change, satisfy stove to the smelting requirements of certain alloy, realize that a kind of stove can be used for smelting the alloy of many kinds, reduce the investment of equipment and taking of place.

Description of drawings

Fig. 1 is the utility model A-A generalized section;

Fig. 2 is distribution of electrodes schematic diagram in the utility model;

Fig. 3 is that electrode grip device master looks generalized section in the utility model;

Fig. 4 is electrode grip device schematic top plan view in the utility model.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified:

Mineral hot furnace illustrated in figures 1 and 2 includes body of heater 1, electrode 2, bell 3, cupola well 4, Conducting copper tile 6 and short net 7; Three electrodes 2 are connected with three-phase alternating-current supply 8 through short net 7 by Conducting copper tile 6 respectively, and for cooperating the movement of three electrodes 2, short net 7 adopts and is flexible coupling, and presets the length that will move; One end of electrode 2 is positioned at cupola well 4; The other end of electrode 2 is connected with electrode aerator 9, and below electrode aerator 9, electrode 2 is by 5 clampings of electrode grip device, and electrode grip device 5 is fixed on the supporting seat 10, and supporting seat 10 is installed on the guide rail 11, and guide rail 11 is fixed on the structures; Be provided with the traction screw mandrel 12 that drives supporting seat 10 between supporting seat 10 and the described structures, draw in other embodiments screw mandrel 12 and can be other drive form replacement; Under the driving of traction screw mandrel 12, electrode grip device 5 is realized respectively mobile along guide rail 11 together with three electrodes 2, thereby changes the position of electrode 2; For cooperating the movement of three electrodes 2, above bell 3, be mounted with around electrode 2 and movably keep off fiery trim ring 13, keep off fiery trim ring 13 and can effectively block the position, hole that stays owing to moving of electrode 2, avoid in bell 3 generation flame phenomenons; Also connecting on the bell 3 has blast pipe 16 and is communicated with feeding chamber 14; Body of heater 1 bottom offers tapping hole 15.

Fig. 3 and electrode grip device 5 shown in Figure 4 include clamping bracing frame 5-1, are mounted with annular air-pocket 5-2 in clamping bracing frame 5-1; Annular air-pocket 5-2 is connected with compressed gas source by pipeline and air valve, and electrode 2 passes the ring among the annular air-pocket 5-2, and the piston rod of clamping bracing frame 5-1 and driving cylinder 5-3 is hinged, and the cylinder body of driving cylinder 5-3 is fixed on the supporting seat 10.

Claims

1. a mineral hot furnace includes body of heater (1), three electrodes (2) by electrode grip device (5) clamping; It is characterized in that: the supporting seat (10) that supports described electrode grip device (5) is movably arranged on the guide rail (11), and described guide rail (11) is fixed on the structures; Described supporting seat (10) is mobile along described guide rail (11) under the driving of traction screw mandrel (12); Described traction screw mandrel (12) is arranged between described supporting seat (10) and the described structures.

2. mineral hot furnace according to claim 1, it is characterized in that: described electrode grip device (5) includes clamping bracing frame (5-1), is mounted with annular air-pocket (5-2) in described clamping bracing frame (5-1); Described annular air-pocket (5-2) is connected with compressed gas source by pipeline and air valve, described electrode (2) passes the ring in the described annular air-pocket (5-2), described clamping bracing frame (5-1) is hinged with the piston rod of driving cylinder (5-3), and the cylinder body of described driving cylinder (5-3) is fixed on the described supporting seat (10).

3. mineral hot furnace according to claim 1 and 2 is characterized in that: be mounted with mobile gear fiery trim ring (13) in described bell (3) top around described electrode (2).