Steel slag collecting device for continuous feeding opening of steel scrap preheating electric furnace and electric furnace

Abstract

The utility model belongs to the field of metallurgical equipment, and relates to a steel slag collecting device for a continuous charging port of a scrap steel preheating electric furnace and the electric furnace, which comprise a chute fixed on tilting equipment and below the scrap steel preheating continuous charging port. The chute is fixed on the tilting equipment and located below the scrap preheating continuous feeding port and tilts along with the tilting equipment, a fixed chute can be arranged below the chute for transition, and steel slag is collected after being gathered through the fixed chute. A steel slag collecting container is arranged below the chute and placed on a walking trolley, a driving device drives the walking trolley through a pulley and a steel wire rope, and the steel slag collecting container is inserted or hoisted by a forklift after the walking trolley is moved to a far position; the steel slag cleaning device solves the problems that steel slag below the continuous feeding port of the scrap steel preheating electric furnace cannot be cleaned thoroughly, cleaning difficulty is large, steel slag cleaning is not safe in continuous production of electric furnace smelting, and therefore continuous production of electric furnace smelting is affected.

Description

Technical Field

[0001] This utility model belongs to the field of metallurgical equipment and relates to a slag collection device and electric furnace for continuous feeding port of scrap steel preheating electric furnace. Background Technology

[0002] Electric arc furnaces are the core production process and equipment in short-process steelmaking, and scrap preheating electric arc furnaces are currently the mainstream structure. The slag collection device at the continuous charging port of the scrap preheating electric arc furnace is used to guide and collect slag from the furnace charging port and is an important auxiliary production device. During the charging process in the electric arc furnace, because the continuous charging trolley is constantly vibrating, a certain gap must be maintained between the trolley tongue and the furnace body. A large amount of slag splashes into this gap and falls onto the tilting equipment and the ground below the continuous charging port. The high-temperature slag then clumps together and accumulates.

[0003] Slag on the tilting equipment of traditional scrap steel preheating electric arc furnaces requires manual cleaning, and slag on the ground below the continuous feed port needs to be cleaned manually with the aid of a loader after production has stopped. In some electric arc furnaces with limited space below the continuous feed port, manual cleaning is entirely necessary. High-temperature slag splashed from the continuous feed port clumps together and needs to be manually broken up and removed from the equipment. Manual cleaning involves high ambient temperatures, poor working conditions, high labor intensity, and long cleaning times. Manual slag cleaning can only be carried out after the electric arc furnace has been shut down. This disrupts the continuous production rhythm of the electric arc furnace and affects its automated smelting operation. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a slag collection device and electric furnace at the continuous feeding port of a scrap steel preheating electric furnace, which solves the problem of the difficulty in cleaning the slag below the continuous feeding port of the scrap steel preheating electric furnace and the inability to clean the slag online.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a slag collection device for a continuous feed port of a scrap steel preheating electric furnace, comprising a movable chute, a slag collection container, a traveling trolley, and a drive device; the movable chute is fixedly connected to a tilting device and located directly below the continuous feed port of the scrap steel preheating furnace, the movable chute tilts together with the tilting device, the slag collection container is located below the chute for receiving and collecting the slag falling from the chute, the traveling trolley has the slag collection container placed on it and moves via a traveling track; the drive device is located away from the continuous feed port of the electric furnace and is connected to the traveling trolley via pulleys / sprockets and wire ropes / chains to drive the traveling trolley to move on the traveling track.

[0006] Optionally, a fixed chute may be installed between the movable chute and the slag collection container as needed to further gather and guide the slag falling from the movable chute. The fixed chute is fixedly connected to the equipment foundation.

[0007] Optionally, the shape and structure of the movable and fixed chutes can be adjusted according to the layout of the surrounding equipment and objects to ensure effective guidance and collection of steel slag and avoid interference with the surrounding equipment.

[0008] Optionally, the shape of the slag collection container is determined based on the space below the continuous feed port of the electric furnace to ensure that it covers a sufficiently large slag collection area without interfering with the foundation of surrounding equipment.

[0009] Optionally, the traveling trolley is equipped with anti-collision devices, including anti-collision blocks at the slag receiving position and anti-collision blocks at the cleaning position at both ends, to prevent the traveling trolley from colliding during movement.

[0010] Optionally, the pulley / sprocket is fixed to the base on the side of the track slag receiving position and is equipped with a protective cover to protect the pulley / sprocket.

[0011] Optionally, the drive unit is driven by a winch, which uses a combination of wire rope / chain and pulley / sprocket to achieve the reciprocating movement of the trolley on the track.

[0012] An electric furnace includes an electric furnace tilting device and a slag collection device for a continuous feed port for preheating scrap steel, as described above. The slag collection device for the continuous feed port for preheating scrap steel is fixedly connected to the electric furnace tilting device to achieve automatic collection and processing of slag.

[0013] Optionally, the collection container of the electric furnace slag collection device is placed on a traveling trolley and driven by a drive device located at a remote end, so as to realize the online replacement and cleaning of the slag collection container.

[0014] The beneficial effects of this utility model are as follows: This utility model provides a slag collection device and electric furnace for the continuous charging port of a scrap steel preheating electric furnace, which can automatically collect splashed slag from the continuous charging port. A movable chute fixed to the furnace tilting equipment, in conjunction with an optional fixed chute, allows for adjustments to the chute's position and shape, ensuring it avoids surrounding equipment and foundations. This effectively collects splashed slag without affecting equipment operation or maintenance. The slag collection container, located below the continuous charging port, is moved to a slag cleaning position and then handled using mechanical equipment. This invention improves upon the need for entirely manual cleaning of slag from the continuous charging port, significantly reducing cleaning time, labor intensity, and the working environment. This technology also saves manpower for furnace maintenance. This invention solves the problem of equipment shutdown required for slag cleaning below the continuous charging port of a scrap steel preheating electric furnace, allowing for online replacement of the slag collection container. The equipment is easy to use and maintain, with minimal disassembly and assembly work, indirectly increasing economic benefits.

[0015] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0017] Figure 1 This is the front view of the present invention;

[0018] Figure 2 This is a tilting view of the electric furnace according to this utility model.

[0019] Reference numerals: 1 Drive unit, 2 Movable chute, 3 Fixed chute, 4 Slag collection container, 5 Slag, 6 Traveling trolley, 7 Pulley / sprocket, 7a Wire rope / chain, 7b Protective cover, 8a Slag receiving position anti-collision block, 8b Cleaning position anti-collision block, 9 Trolley track, 10 Lower furnace body of electric furnace, 10b Upper furnace body of electric furnace, 10c Continuous feeding trolley tongue, 10d Tilting device, 11 Equipment foundation. Detailed Implementation

[0020] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0021] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0022] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0023] Please see Figures 1-2 The present invention relates to a slag collection device and an electric furnace for continuous feeding port of a scrap steel preheating electric furnace, comprising: a drive device 1, a movable chute 2, a fixed chute 3, a slag collection container 4, a traveling trolley 6, a pulley / sprocket 7, and a wire rope / chain 7a.

[0024] according to Figure 1 As shown in the illustrated embodiment, the movable chute 2 is fixed to the tilting device 10d and tilts together with it. The upper opening of the movable chute 2 is connected to the continuous feeding port of the lower furnace body 10a, covering the continuous feeding port area. The fixed chute 3 is fixed below the movable chute 2. Based on the movement path, shape, and foundation outline of the electric furnace tilting device 10d and the continuous feeding trolley tongue 10c, the shape and combination of the movable chute 2 and the fixed chute 3 are adjusted. The traveling trolley 6 is parked on the slag receiving position trolley track 9 below the chute. The drive device 1 pulls the traveling trolley 6 through the wire rope / chain 7a. The pulley / sprocket 7 fixed on the equipment foundation 11 adjusts the driving direction of the drive device 1. The traveling trolley 6 reciprocates between the slag receiving position and the cleaning position on the trolley track 9, and replaces and cleans the slag collection container 4 at the cleaning position.

[0025] according to Figure 1 As shown in the illustrated embodiment, the traveling trolley 6 is equipped with a protective cover 7b outside the pulley / sprocket 7, and the protective cover 7b has an opening for the steel wire rope / chain 7a to pass through. The traveling trolley 6 is equipped with a slag receiving anti-collision block 8a at the slag receiving position and a cleaning position anti-collision block 8b at the cleaning position.

[0026] according to Figure 2 As shown in the cross-sectional diagram of the electric arc furnace tilting mechanism, the movable chute 2 tilts together with the lower furnace body 10a, the upper furnace body 10b, and the tilting device 10d, satisfying the tilting requirements of the electric arc furnace equipment in both the steel tapping and slag tapping directions. An optional fixed chute 3 guides the collected slag. A slag collection container 4 is placed on a traveling trolley 6, which moves along the trolley track 9. The slag collection container 4 covers the space below the chute as much as possible while meeting the safety distance requirements around the trolley during movement.

[0027] The structure of this invention allows for flexible on-site installation and adjustment, and is easy to maintain. It can reduce the workload of manually collecting and cleaning steel slag at the continuous feeding port of the scrap steel preheating electric furnace, avoid manual operation in a high-temperature splashing environment, save labor costs, and indirectly increase economic benefits.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A slag collection device for a continuous charging port of a scrap steel preheating electric furnace, characterized in that: Includes movable chute, slag collection container, traveling trolley and drive unit; The movable chute is fixedly connected to the tilting device and located directly below the continuous feed port for scrap steel preheating. The movable chute tilts together with the tilting device. The slag collection container is located below the chute to receive and collect the slag falling from the chute. The trolley has the slag collection container on it and moves along the track. The drive unit is located away from the continuous feed port of the electric furnace and is connected to the trolley via pulleys / sprockets and wire ropes / chains to drive the trolley to move on the track.

2. The slag collection device for the continuous feeding port of a scrap steel preheating electric furnace according to claim 1, characterized in that: A fixed chute can be optionally installed between the movable chute and the slag collection container as needed, to further gather and guide the slag falling from the movable chute. The fixed chute is fixedly connected to the equipment foundation.

3. The slag collection device for the continuous charging port of a scrap steel preheating electric furnace according to claim 2, characterized in that: The shape and structure of the movable and fixed chutes are adjusted according to the layout of the surrounding equipment and objects to ensure effective guidance and collection of steel slag and to avoid interference with the surrounding equipment.

4. The slag collection device for the continuous feeding port of a scrap steel preheating electric furnace according to claim 1, characterized in that: The shape of the steel slag collection container is determined based on the space below the continuous charging port of the electric furnace to ensure that it covers a sufficiently large steel slag collection area without interfering with the foundation of surrounding equipment.

5. The slag collection device for the continuous charging port of a scrap steel preheating electric furnace according to claim 1, characterized in that: The traveling trolley is equipped with anti-collision devices, including anti-collision blocks at both ends of the slag receiving position and anti-collision blocks at the cleaning position, to prevent the traveling trolley from colliding during movement.

6. The slag collection device at the continuous charging port of a scrap steel preheating electric furnace according to claim 1, characterized in that: The pulleys / sprockets are fixed to the base on the side of the track where the slag is collected, and a protective cover is installed to protect the pulleys / sprockets.

7. The slag collection device for the continuous charging port of a scrap steel preheating electric furnace according to claim 1, characterized in that: The drive unit is driven by a winch, and the trolley moves back and forth on the track through a combination of wire rope / chain and pulley / sprocket transmission.

8. An electric furnace, characterized in that: The invention includes an electric furnace tilting device and a slag collection device at the continuous charging port of a scrap preheating electric furnace as described in any one of claims 1 to 7, wherein the slag collection device at the continuous charging port of the scrap preheating electric furnace is fixedly connected to the electric furnace tilting device to achieve automatic collection and processing of slag.

9. An electric furnace according to claim 8, characterized in that: The collection container of the electric arc furnace slag collection device is placed on a traveling trolley and is driven by a drive device located at a remote end, enabling online replacement and cleaning of the slag collection container.

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