Electric arc furnace cover lifting mechanism

Abstract

The utility model provides an electric arc furnace cover lifting mechanism, which belongs to the technical field of metallurgical equipment manufacturing and comprises a bearing mechanism, an electric arc furnace, support legs fixedly mounted at the bottom of the electric arc furnace and a liquid discharge pipe fixedly mounted on the outer surface of the electric arc furnace. The driving mechanism comprises a fixing frame fixedly installed on one side of the electric arc furnace, a first motor installed on the outer surface of the fixing frame in a matched mode, a first connecting rod fixedly installed at the output end of the first motor through a coupler, a lifting assembly used when the first motor rotates, and an adjusting assembly used in cooperation with the lifting assembly. Through the mutual cooperation of the bearing mechanism and the driving mechanism, not only is the rapid lifting of the furnace cover realized, but also the flexible movement of the furnace cover is supported, so that the charging can be directly carried out from the top, the dependence on a specific tool is avoided, the internal components of the electric arc furnace can be more conveniently approached to be overhauled and maintained, the downtime is reduced, and the working efficiency is improved. The overall flexibility is improved, and high efficiency and continuity in the production process are ensured.

Description

Technical Field

[0001] This utility model belongs to the field of metallurgical equipment manufacturing technology, specifically relating to an electric arc furnace cover lifting mechanism. Background Technology

[0002] The lifting mechanism of an electric arc furnace in steelmaking is an important component of the furnace's mechanical equipment. It is mainly used to adjust the position of the electrodes or furnace cover to meet the needs of different smelting stages or to facilitate maintenance and operation. In the steelmaking process, the electric arc furnace generates a high-temperature electric arc through the electrodes to melt the metal billet. The lifting mechanism of the furnace cover is also designed to facilitate feeding, maintenance, or other operations, thereby improving operational flexibility, optimizing the energy efficiency of the smelting process, and enhancing overall production efficiency and safety.

[0003] In existing technologies, some electric arc furnace covers are installed in a fixed manner. Fixed furnace covers can improve the overall sealing and reduce heat loss, but this method also increases the difficulty of maintenance and operation, because specific tools are required to access internal components for maintenance, which prolongs preparation time. In addition, fixed furnace covers limit the possibility of feeding directly from the top, and feeding is usually completed through other methods such as side doors, which is more complicated and time-consuming than feeding directly from the top, resulting in increased downtime and reduced production efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide an electric arc furnace cover lifting mechanism, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An electric arc furnace lid lifting mechanism, comprising:

[0007] The supporting mechanism includes an electric arc furnace, support legs fixedly installed at the bottom of the electric arc furnace, and a liquid discharge pipe fixedly installed on the outer surface of the electric arc furnace;

[0008] The drive mechanism includes a fixed frame fixedly installed on one side of the electric arc furnace, a first motor adapted to be installed on the outer surface of the fixed frame, a first connecting rod fixedly installed on the output end of the first motor via a coupling, a lifting assembly used when the first motor rotates, and an adjustment assembly used in conjunction with the lifting assembly.

[0009] In a preferred embodiment of this utility model, the liquid discharge pipe is connected to the electric arc furnace, and the outer surface of the first connecting rod is rotatably connected to the inner surface of the fixed frame, with a bearing sleeve installed at the connection point for rotational use.

[0010] As a preferred embodiment of the present invention, the lifting assembly includes a first pulley fixedly installed on the outer end face of the first connecting rod, a steel wire sleeved on the outer surface of the first pulley, and a second pulley sleeved on the inner surface of the other end of the steel wire sleeve.

[0011] As a preferred embodiment of this utility model, the lifting assembly further includes slide rails fixedly installed on both sides of the outer surface of the fixed frame, a slider slidably connected to the outer surface of the slide rails, a guide block fixedly installed on the outer surface of the slider, a limiting block fixedly installed on the outer surface of the fixed frame and used in conjunction with the guide block, a fixing block fixedly sleeved on the outer surface of the steel wire, and a fixing plate fixedly connected to the fixing block.

[0012] In a preferred embodiment of this utility model, the second pulley is rotatably connected to the outer surface of the fixed frame and a bearing sleeve for rotation is installed at the connection point. The outer surface of the slide rail is in sliding contact with the inner surface of the slider, and the outer surface of the guide block is in sliding contact with the outer surface of the limiting block.

[0013] As a preferred embodiment of this utility model, the adjustment assembly includes a fixed frame fixedly installed on the outer surface of the fixed plate, a second motor adapted to be installed on the outer surface of the fixed frame, a second connecting rod fixedly installed on the output end of the second motor via a coupling, a driving gear fixedly installed on the outer surface of the second connecting rod, a driven gear meshing with the surface of the driving gear, a guide rod fixedly installed on the outer surface of the driven gear, a guide groove formed on the outer surface of the fixed frame and used in conjunction with the guide rod, and a furnace cover fixedly installed on the outer end face of the guide rod.

[0014] In a preferred embodiment of this utility model, the outer surface of the fixed frame is fixedly connected to the outer surface of the slider, the second connecting rod is rotatably connected to the inner surface of the fixed frame and a bearing sleeve for rotation is installed at the connection, the outer surface of the guide rod is in sliding contact with the inner surface of the guide groove, and the bottom of the furnace cover is in contact with the top of the electric arc furnace.

[0015] Compared with the prior art, the beneficial effects of this utility model are: through the cooperation of the supporting mechanism and the driving mechanism, not only is the rapid lifting and lowering of the furnace cover realized, but also the flexible movement of the furnace cover is supported, so that the material can be added directly from the top, avoiding the dependence on specific tools, and making it easier to access the internal components of the electric arc furnace for inspection and maintenance, reducing downtime, improving overall flexibility, and ensuring high efficiency and continuity in the production process. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0019] Figure 3 This is a schematic diagram of the lifting assembly of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the adjustment component of this utility model.

[0021] In the diagram: 100, bearing mechanism; 101, electric arc furnace; 102, support leg; 103, liquid discharge pipe; 200, drive mechanism; 201, fixed frame; 202, first motor; 203, first connecting rod; 204, lifting assembly; 204a, first pulley; 204b, steel wire belt; 204c, second pulley; 204d, slide rail; 204e, slider; 204f, guide block; 204g, limit block; 204h, fixed block; 204i, fixed plate; 205, adjusting assembly; 205a, fixed frame; 205b, second motor; 205c, second connecting rod; 205d, driving gear; 205e, driven gear; 205f, guide rod; 205g, guide groove; 205h, furnace cover. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Example

[0026] Reference Figures 1-4 This is an embodiment of the present invention, which provides an electric arc furnace cover lifting mechanism, comprising:

[0027] The supporting mechanism 100 includes an electric arc furnace 101, a support leg 102 fixedly installed at the bottom of the electric arc furnace 101, and a liquid discharge pipe 103 fixedly installed on the outer surface of the electric arc furnace 101.

[0028] The drive mechanism 200 includes a fixed frame 201 fixedly installed on one side of the electric arc furnace 101, a first motor 202 adapted to be installed on the outer surface of the fixed frame 201, a first connecting rod 203 fixedly installed on the output end of the first motor 202 via a coupling, a lifting assembly 204 used when rotating with the first motor 202, and an adjustment assembly 205 used in conjunction with the lifting assembly 204.

[0029] Specifically, the liquid discharge pipe 103 and the electric arc furnace 101 are connected, and the outer surface of the first connecting rod 203 is rotatably connected to the inner surface of the fixed frame 201, and a bearing sleeve for rotation is installed at the connection.

[0030] The first motor 202 drives the first connecting rod 203, and the lifting assembly 204 enables the furnace cover to be raised and lowered quickly, allowing material to be added directly from the top, improving operational flexibility and reducing reliance on specific tools. The liquid discharge pipe 103 is connected to the electric arc furnace 101, ensuring that the liquid metal can flow out smoothly. At the same time, the close fit of the furnace cover 205h helps to reduce heat loss and maintain a stable furnace temperature.

[0031] Furthermore, the lifting assembly 204 includes a first pulley 204a fixedly installed on the outer end face of the first connecting rod 203, a steel wire 204b sleeved on the outer surface of the first pulley 204a, and a second pulley 204c sleeved on the inner surface of the other end of the steel wire 204b.

[0032] Furthermore, the lifting assembly 204 also includes slide rails 204d fixedly installed on both sides of the outer surface of the fixed frame 201, sliders 204e slidably connected to the outer surface of the slide rails 204d, guide blocks 204f fixedly installed on the outer surface of the sliders 204e, limit blocks 204g fixedly installed on the outer surface of the fixed frame 201 and used in conjunction with guide blocks 204f, fixing blocks 204h fixedly sleeved on the outer surface of the steel wire 204b, and fixing plates 204i fixedly connected to fixing blocks 204h.

[0033] Furthermore, the second pulley 204c is rotatably connected to the outer surface of the fixed frame 201, and a bearing sleeve for rotation is installed at the connection. The outer surface of the slide rail 204d is in sliding contact with the inner surface of the slider 204e, and the outer surface of the guide block 204f is in sliding contact with the outer surface of the limit block 204g.

[0034] The furnace cover lifting process can be precisely controlled by the first pulley 204a, the steel wire 204b, and the second pulley 204c. The steel wire 204b not only provides sufficient strength to support the weight of the furnace cover, but also ensures the smoothness of the lifting process. The slide rail 204d and the slider 204e ensure that the furnace cover 205h moves along the predetermined path during the lifting process, avoiding deviation or jamming.

[0035] Preferably, the adjustment assembly 205 includes a fixed frame 205a fixedly mounted on the outer surface of the fixed plate 204i, a second motor 205b adapted to be mounted on the outer surface of the fixed frame 205a, a second connecting rod 205c fixedly mounted on the output end of the second motor 205b via a coupling, a driving gear 205d fixedly mounted on the outer surface of the second connecting rod 205c, a driven gear 205e meshing with the surface of the driving gear 205d, a guide rod 205f fixedly mounted on the outer surface of the driven gear 205e, a guide groove 205g formed on the outer surface of the fixed frame 205a and used in conjunction with the guide rod 205f, and a furnace cover 205h fixedly mounted on the outer end face of the guide rod 205f.

[0036] It should be noted that the outer surface of the fixed frame 205a is fixedly connected to the outer surface of the slider 204e, the second connecting rod 205c is rotatably connected to the inner surface of the fixed frame 205a and a bearing sleeve for rotation is installed at the connection, the outer surface of the guide rod 205f slides in contact with the inner surface of the guide groove 205g, and the bottom of the furnace cover 205h is in contact with the top of the electric arc furnace 101.

[0037] The combination of the second motor 205b, the driving gear 205d, and the driven gear 205e enables the adjustment of the position of the furnace cover 205h. The guide rod 205f and the guide groove 205g ensure the stability of the furnace cover 205h during movement, avoiding unnecessary vibration or displacement, enabling it to quickly meet the requirements of feeding, maintenance, and other operations, and improving the overall flexibility of the equipment.

[0038] During operation, when raw materials need to be added to the electric arc furnace 101, the first motor 202 is started. The first motor 202 drives the first connecting rod 203 to rotate, which in turn drives the first pulley 204a to rotate. The first pulley 204a drives the steel wire rope 204b to rotate, which in turn drives the second pulley 204c to rotate. This causes the fixed block 204h to move the fixed plate 204i linearly, and the fixed plate 204i to move the slider 204e on the slide rail 204d, ensuring stability during the lifting process. The slider 204e drives the guide block 204f to move. The limiting block 204g limits the guide block 204f to prevent the fixed block 204h from exceeding the rotation angle of the steel wire 204b, until it rises to the required height. Then, the second motor 205b is started. The second motor 205b drives the second connecting rod 205c to rotate. The second connecting rod 205c drives the driving gear 205d to rotate. The driving gear 205d drives the driven gear 205e to rotate. The driven gear 205e drives the guide rod 205f to move within the guide groove 205g, so that... The furnace cover 205h is deparallel to the electric arc furnace 101 to facilitate the feeding of materials into the electric arc furnace 101. After feeding is completed, the second motor 205b is started, causing it to rotate in the opposite direction. The second motor 205b drives the second connecting rod 205c to rotate, which in turn drives the drive gear 205d to rotate. The drive gear 205d then drives the driven gear 205e to rotate, and the driven gear 205e drives the guide rod 205f to move within the guide groove 205g until the furnace cover 205h is parallel to the electric arc furnace 101. The second motor 205b is turned off, and the first motor 202 is started, causing the first motor 202 to rotate in the opposite direction. The first motor 202 drives the first connecting rod 203 to rotate, the first connecting rod 203 drives the first pulley 204a to rotate, the first pulley 204a drives the steel wire 204b to rotate, and the steel wire 204b drives the second pulley 204c to rotate, causing the fixed block 204h to drive the fixed plate 204i to move linearly, causing the furnace cover 205h to descend and fit against the top of the electric arc furnace 101. Finally, the molten metal is discharged from the discharge pipe 103.

[0039] In summary, through the cooperation of the supporting mechanism 100 and the driving mechanism 200, not only is the rapid lifting and lowering of the furnace cover 205h achieved, but the flexible movement of the furnace cover 205h is also supported, allowing for direct feeding from the top. This avoids dependence on specific tools, makes it easier to access the internal components of the electric arc furnace 101 for inspection and maintenance, reduces downtime, improves overall flexibility, and ensures high efficiency and continuity in the production process.

[0040] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0041] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0042] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0043] 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 the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An arc furnace roof lifting mechanism characterized by: The utility model relates to an arc furnace, and particularly relates to an arc furnace with a lifting mechanism. The driving mechanism (200) comprises a fixed frame (201) fixedly installed on one side of the arc furnace (101), a first motor (202) adaptively installed on the outer surface of the fixed frame (201), a first connecting rod (203) fixedly installed on the output end of the first motor (202) through a shaft coupling, a lifting assembly (204) used in rotation with the first motor (202), and an adjusting assembly (205) used in cooperation with the lifting assembly (204). The liquid outlet pipe (103) is in communication with the arc furnace (101), the outer surface of the first connecting rod (203) is rotationally connected to the inner surface of the fixed frame (201), and a bearing sleeve used in cooperation with rotation is installed at the connection.

2. An arc furnace roof lifting mechanism according to claim 1, characterised in that: The lifting assembly (204) comprises a first pulley (204a) fixedly installed on the outer end surface of the first connecting rod (203), a steel wire belt (204b) sleeved on the outer surface of the first pulley (204a), and a second pulley (204c) sleeved on the inner surface of the other end of the steel wire belt (204b).

3. An arc furnace roof lifting mechanism as claimed in claim 2, characterized in that: The lifting assembly (204) further comprises two slide rails (204d) fixedly installed on the outer surface of the fixed frame (201) on both sides, a sliding block (204e) slidingly connected to the outer surface of the slide rail (204d), a guide block (204f) fixedly installed on the outer surface of the sliding block (204e), a limiting block (204g) fixedly installed on the outer surface of the fixed frame (201) and used in cooperation with the guide block (204f), a fixing block (204h) fixedly sleeved on the outer surface of the steel wire belt (204b), and a fixing plate (204i) fixedly connected to the fixing block (204h).

4. An arc furnace roof lifting mechanism according to claim 3, characterised in that: The second pulley (204c) is rotationally connected to the outer surface of the fixed frame (201), and a bearing sleeve used in cooperation with rotation is installed at the connection; the outer surface of the slide rail (204d) is in sliding contact with the inner surface of the sliding block (204e); and the outer surface of the guide block (204f) is in sliding contact with the outer surface of the limiting block (204g).

5. An arc furnace roof lifting mechanism as claimed in claim 4 wherein: ​ 6. An arc furnace roof lifting mechanism as claimed in claim 5 wherein: The adjusting assembly (205) comprises a fixed frame (205a) fixedly installed on the outer surface of the fixed plate (204i), a second motor (205b) adaptively installed on the outer surface of the fixed frame (205a), a second connecting rod (205c) fixedly installed on the output end of the second motor (205b) through a shaft coupling, a driving gear (205d) fixedly installed on the outer surface of the second connecting rod (205c), a driven gear (205e) engaged with the surface of the driving gear (205d), a guide rod (205f) fixedly installed on the outer surface of the driven gear (205e), a guide groove (205g) opened on the outer surface of the fixed frame (205a) and matched with the guide rod (205f), and a furnace cover (205h) fixedly installed on the outer end surface of the guide rod (205f).

7. An arc furnace roof lifting mechanism as claimed in claim 6 wherein: The outer surface of the fixed frame (205a) is fixedly connected with the outer surface of the sliding block (204e), the second connecting rod (205c) is rotationally connected with the inner surface of the fixed frame (205a) and a bearing sleeve matched with rotation is installed at the connection position, the outer surface of the guide rod (205f) is in sliding contact with the inner surface of the guide groove (205g), and the bottom of the furnace cover (205h) is attached to the top of the electric arc furnace (101).

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