CN210856201U

CN210856201U - Steelmaking electric arc furnace equipment for refining according to weight of scrap steel

Info

Publication number: CN210856201U
Application number: CN201921851512.3U
Authority: CN
Inventors: 陈一
Original assignee: Hunan University of Technology
Current assignee: Hunan University of Technology
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-06-26
Anticipated expiration: 2029-10-31

Abstract

The utility model relates to an electric arc steelmaking technical field just discloses a steelmaking electric arc furnace equipment of refining according to scrap steel weight, including the reaction box, the feed inlet has been seted up on the surface of reaction box, and the inside of reaction box just is located the below fixedly connected with stock chest of feed inlet, and the bottom fixedly connected with of stock chest leaks the net, and the inside of reaction box just is located the below fixedly connected with slide rail of stock chest, the sliding surface of slide rail is connected with the carousel, and the surface swing joint of carousel has the telescopic link. The electric arc mechanism is close to each other, and the plate electrode in the electric arc mechanism of symmetry is close to each other under regulating spring's promotion, can produce high temperature electric arc when distance between them reaches the setting value, to placing the refining on the board, along with the refining carry out the material and reduce gradually, place the board rebound under reset spring's drive, and the plate electrode is kept away from each other and is not producing electric arc to when having reached the fractional delivery effect without indirect outage.

Description

Steelmaking electric arc furnace equipment for refining according to weight of scrap steel

Technical Field

The utility model relates to an electric arc steelmaking technical field specifically is a steelmaking electric arc furnace equipment that refines according to scrap steel weight.

Background

Due to the unique properties of steel, the steel is widely used in the construction industry, and the traditional steelmaking methods are a smelting converter steelmaking method, an open hearth steelmaking method and an electric furnace steelmaking method.

The electric furnace steelmaking using the scrap steel as the raw material has less capital investment than the blast furnace converter method, and the development of direct reduction provides metallized pellets for the electric furnace to replace most of the scrap steel, thereby greatly promoting the electric furnace steelmaking.

In the traditional steelmaking electric arc furnace, in order to prevent the phenomenon of insufficient reaction caused by excessive materials, the materials are required to be loaded from the top of the furnace for many times, and the steelmaking raw materials are melted by electric arcs generated between symmetrical electrodes and the steelmaking raw materials; therefore, the traditional electric arc furnace can only be used for supplying power to the furnace discontinuously in coordination with the feeding time, and the power is cut off and the furnace cover is unscrewed for charging at intervals, so that the productivity of the electric arc furnace is reduced, and the heat loss and the energy consumption of the electric arc furnace are increased; in addition, when the furnace cover is opened, a large amount of dust flies out, and the working environment of a factory is seriously influenced, so that the steelmaking electric arc furnace equipment for refining according to the weight of scrap steel is produced.

Disclosure of Invention

For the purpose of realizing that the above-mentioned material is poured into in the gradation under the condition that does not reduce the heat energy, the utility model provides a following technical scheme: the utility model provides a steelmaking electric arc furnace equipment of refining according to scrap steel weight, includes the reaction box, the feed inlet has been seted up on the surface of reaction box, and the inside of reaction box just is located the below fixedly connected with stock chest of feed inlet, and the bottom fixedly connected with of stock chest leaks the net, and the inside of reaction box just is located the below fixedly connected with slide rail of stock chest, the sliding surface of slide rail is connected with the carousel, and the surface swing joint of carousel has the telescopic link, and the one end fixedly connected with brush of carousel is kept away from to the telescopic link, and the one end fixedly connected with that the stock chest was kept away from to the slide rail places the board, and the equal swing joint in both sides of placing the board has electric arc mechanism, places the board and keeps away from one side.

The utility model has the advantages that:

1. the material is introduced into the material storage tank in the reaction box through the feed inlet, the driving part is started to rotate the turntable, when the turntable rotates one hundred eighty degrees from the initial position in fig. 1, the telescopic rod extends out under the action of gravity, and the materials on the surface of the turntable are poured on the surface of the placing plate, the placing plate moves downwards under the influence of the weight of the materials, and pushes the support rod to move downwards, the movement of the support rod can drive the push rod to move towards the direction close to the support rod and push the arc mechanisms at the two sides to mutually approach, the electrode plates in the symmetrical electric arc mechanism approach each other under the pushing of the adjusting spring, when the distance between the electrode plates and the adjusting spring reaches a set value, high-temperature electric arc is generated, the material on the placing plate is refined, the placing plate moves upwards under the driving of the return spring along with the gradual reduction of the material during refining, the electrode plates are far away from each other and do not generate electric arcs, so that the effect of not needing indirect power-off when the electrode plates are put in times is achieved.

2. When the turntable rotates from the bottom to the upper part of the reaction tank, the telescopic rod continuously contracts inwards under the action of gravity, when the turntable rotates to a position right below the feed inlet, the telescopic rod is not completely contracted at the moment, a part of burrs are exposed outside, the burrs push the permeation net to shake off materials in the storage tank and fall on the turntable, and the turntable continues to move, so that the effect of putting the materials in batches while the heat energy is not reduced is achieved; since the whole process is not operated in an open environment, no dust escapes.

3. Rotate through the carousel, when the carousel rotates when placing the board surface, the telescopic link stretches out completely, and the burr is nearer apart from placing the board, can sweep the impurity or the residue of placing the board surface along with the rotation of carousel to reached and cleaned impurity, improved the effect of refining purity.

Preferably, the arc mechanism comprises a housing, and the inside of the housing is fixedly connected with an adjusting spring.

Preferably, the one end fixedly connected with plate electrode that the casing was kept away from to the regulating spring adopts PH combined electrode, model: GST-C.

Preferably, the number of the push rods is two, and the adjacent push rods are movably connected through a return spring.

Preferably, one end of the push rod, which is far away from the support rod, is movably connected with the arc mechanism.

Preferably, the reaction box is oval, and a certain space is provided for storing waste while a closed space is formed.

Preferably, the brush is made of a high-temperature-resistant flame-retardant material, and the highest temperature of the brush is higher than the temperature of an electric arc generated by the electrode plate.

Preferably, the extension length of the telescopic rod just reaches the surface of the placing plate, so that the placing plate is convenient to clean.

Preferably, when the permeable net is pushed, the material falls down, meshes of the permeable net are filled with the material, and gas cannot escape.

Drawings

FIG. 1 is a front sectional view of the reaction box structure of the present invention;

FIG. 2 is a schematic view of the slide rail structure of the present invention;

FIG. 3 is an enlarged view of a portion of the arc mechanism at A of FIG. 1;

FIG. 4 is a schematic view of the turntable structure of the present invention;

fig. 5 is a schematic view of the telescopic rod structure of the present invention.

In the figure: 1-reaction box, 2-feed inlet, 3-storage tank, 4-leakage net, 5-slide rail, 6-rotary table, 7-telescopic rod, 8-placing plate, 9-arc mechanism, 10-support rod, 11-push rod, 12-shell, 13-regulating spring, 14-electrode plate and 15-reset spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, an electric arc furnace apparatus for steelmaking according to the weight of scrap steel comprises a reaction box 1, the reaction box 1 is oval, a certain space is provided for storing scrap while forming a closed space, a feed inlet 2 is provided on the surface of the reaction box 1, a storage tank 3 is fixedly connected inside the reaction box 1 and below the feed inlet 2, a leakage net 4 is fixedly connected to the bottom of the storage tank 3, when the leakage net 4 is pushed, the material falls down, the meshes are filled with the material, no gas escapes, a slide rail 5 is fixedly connected inside the reaction box 1 and below the storage tank 3, a rotary table 6 is slidably connected to the surface of the slide rail 5, a telescopic rod 7 is movably connected to the surface of the rotary table 6, when the rotary table 6 rotates from the bottom to the upper part of the reaction box 1, the telescopic rod 7 continuously contracts inwards under the action of gravity, when carousel 6 rotates to feed inlet 2 under, telescopic link 7 at this moment has not contracted completely, and there is some burr to expose externally, burr promotes infiltration net 4, shake off the material in stock chest 3, the length that telescopic link 7 extends just arrives the surface of placing board 8, be convenient for clean and place board 8, the one end fixedly connected with brush of carousel 6 is kept away from to telescopic link 7, the one end fixedly connected with that stock chest 3 was kept away from to slide rail 5 places board 8, the equal swing joint in both sides of placing board 8 has electric arc mechanism 9, electric arc mechanism 9 includes casing 12, the inside fixedly connected with regulating spring 13 of casing 12, the one end fixedly connected with plate electrode 14 of casing 12 is kept away from to regulating spring 13, the brush is fire-retardant material of high temperature resistant, and the highest temperature that receives is greater than the electric arc temperature that plate electrode 14 produced, adopt PH composite electrode, the model: GST-5741C, a support rod 10 is fixedly connected to one side of a placing plate 8 far from a slide rail 5, a push rod 11 is hinged to one end of the support rod 10 far from the placing plate 8, the number of the push rods 11 is two, and the adjacent push rods 11 are movably connected through a return spring 15, when a rotary table 6 rotates one hundred eighty degrees from an initial position in figure 1, a telescopic rod 7 extends out under the action of gravity, and dumps materials on the surface of the rotary table 6 on the surface of the placing plate 8, the placing plate 8 moves downwards under the influence of the weight of the materials and pushes the support rod 10 to move downwards, the support rod 10 moves to drive the push rod 11 to move towards the support rod 10 and push arc mechanisms 9 at two sides to approach each other, electrode plates 14 in symmetrical arc mechanisms 9 approach each other under the pushing of an adjusting spring 13, when the distance between the two electrodes reaches a set value, a high-temperature arc is generated, when the rotary table, the telescopic link 7 stretches out completely, and the burr is nearer apart from placing board 8, can sweep along with the rotation of carousel 6 and place impurity or the residue on board 8 surfaces, plays and cleans impurity, improves the effect of refining purity, and the one end and the electric arc mechanism 9 swing joint of bracing piece 10 are kept away from to push rod 11.

When the device is used, materials are introduced into the material storage tank 3 in the reaction box 1 through the feed inlet 2, the driving part is started to enable the rotary table 6 to rotate, when the rotary table 6 rotates one hundred eighty degrees from the initial position in the figure 1, the telescopic rods 7 extend out under the action of gravity, the materials on the surface of the rotary table 6 are dumped on the surface of the placing plate 8, the placing plate 8 moves downwards under the influence of the weight of the materials and pushes the supporting rod 10 to move downwards, the supporting rod 10 moves to drive the push rod 11 to move towards the direction close to the supporting rod 10 and push the electric arc mechanisms 9 on two sides to mutually approach, the electrode plates 14 in the symmetrical electric arc mechanisms 9 mutually approach under the pushing of the adjusting springs 13, when the distance between the two electrodes reaches a set value, high-temperature electric arcs are generated to refine the materials on the placing plate 8, the materials are gradually reduced along with the refining, the placing plate 8 moves upwards under the driving of the, the electrode plates 14 are far away from each other and do not generate electric arcs, so that the effect of not intermittently cutting off the power supply when the electrode plates are put in times is achieved; through the rotation of the turntable 6, when the turntable 6 rotates from the bottom to the upper part of the reaction box 1, the telescopic rod 7 continuously contracts inwards under the action of gravity, when the turntable 6 rotates to the position right below the feed port 2, the telescopic rod 7 is not completely contracted at the moment, a part of burrs are exposed outside, the burrs push the penetration net 4 to shake off the materials in the storage tank 3 and fall on the turntable 6, and the turntable 6 continues to move to play a role of putting in the materials in batches while not reducing heat energy; rotate through carousel 6, when carousel 6 rotates to placing 8 surfaces of board, telescopic link 7 stretches out completely, and the burr is nearer apart from placing board 8, can sweep along with the rotation of carousel 6 and place 8 surperficial impurity or the residue of board, plays and cleans impurity, improves the effect of refining purity.

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a steelmaking electric arc furnace equipment of refining according to scrap steel weight, includes reaction box (1), its characterized in that: the surface of the reaction box (1) is provided with a feed inlet (2), a storage tank (3) is fixedly connected inside the reaction box (1) and below the feed inlet (2), the bottom of the storage tank (3) is fixedly connected with a leakage net (4), and a slide rail (5) is fixedly connected inside the reaction box (1) and below the storage tank (3);

the surface sliding connection of slide rail (5) has carousel (6), the surperficial swing joint of carousel (6) has telescopic link (7), the one end fixedly connected with brush of carousel (6) is kept away from in telescopic link (7), the one end fixedly connected with that storage silo (3) were kept away from in slide rail (5) places board (8), the equal swing joint in both sides of placing board (8) has electric arc mechanism (9), one side fixedly connected with bracing piece (10) of slide rail (5) are kept away from in placing board (8), the one end of keeping away from placing board (8) in bracing piece (10) articulates there is push rod (11).

2. The electric arc furnace apparatus for steelmaking based on the weight of scrap as claimed in claim 1 wherein: the arc mechanism (9) comprises a shell (12), and an adjusting spring (13) is fixedly connected inside the shell (12).

3. The steelmaking electric arc furnace apparatus as claimed in claim 2 in which the refining is performed in accordance with the weight of scrap, and in which: one end of the adjusting spring (13) far away from the shell (12) is fixedly connected with an electrode plate (14).

4. The electric arc furnace apparatus for steelmaking based on the weight of scrap as claimed in claim 1 wherein: the number of the push rods (11) is two, and the adjacent push rods (11) are movably connected through a return spring (15).

5. The electric arc furnace apparatus for steelmaking based on the weight of scrap as claimed in claim 1 wherein: one end of the push rod (11) far away from the support rod (10) is movably connected with the electric arc mechanism (9).

6. The electric arc furnace apparatus for steelmaking based on the weight of scrap as claimed in claim 1 wherein: the reaction box (1) is oval.

7. The electric arc furnace apparatus for steelmaking based on the weight of scrap as claimed in claim 1 wherein: the brush is made of high-temperature-resistant flame-retardant materials.

8. The electric arc furnace apparatus for steelmaking based on the weight of scrap as claimed in claim 1 wherein: the extension length of the telescopic rod (7) is just up to the surface of the placing plate (8).