Separated disassembly and assembly type furnace cover of dumping type electric arc furnace

Abstract

The utility model provides a separate dismountable furnace lid of dumping type electric arc furnace, including electric arc furnace main part, dismountable furnace lid, rotating shaft, rocker, telescopic bottom pillar, support, support rod and guide plate, electric arc furnace main part top is equipped with dismountable furnace lid, electric arc furnace main part side is equipped with rotating shaft, rotating shaft is equipped with support rod connection support, and the guide plate is equipped with the rocker. According to the electric arc furnace, the electric arc furnace can be obliquely placed, clinker can be conveniently poured out, the furnace cover can be detached, the replacement cost is reduced, and meanwhile smoke in the furnace is treated.

Description

Technical Field

[0001] The utility model relates to a separable dismountable furnace cover of a tilting arc furnace, belonging to the technical field of arc furnaces. Background Art

[0002] An arc furnace is an electric furnace that uses the high temperature generated by an electrode arc to smelt ores and metals. High-temperature smelting using an arc furnace is a conventional means for preparing abrasives, and the obtained abrasives have the characteristics of high purity, high temperature resistance, and corrosion resistance.

[0003] In current existing arc furnaces, the furnace cover is of an integral structure. When discharging to form an arc, the energy is very concentrated, and a large amount of high-temperature flue gas will be generated. Moreover, the temperature at the electrode holes is even higher. The entire furnace cover is baked by high temperature for a long time, which will affect the sealing between it and the furnace body. When replacing, the entire furnace cover needs to be replaced, which is troublesome to operate and costly. Therefore, there is an urgent need for a separable dismountable furnace cover of a tilting arc furnace to solve the above problems. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a separable dismountable furnace cover of a tilting arc furnace to solve the problems raised in the above background art. The structure of the utility model is reasonable, the operation is simple, and it is convenient to use. It can not only tilt the arc furnace for easy pouring out of the clinker, but also disassemble the furnace cover to reduce the replacement cost, and at the same time handle the flue gas in the furnace.

[0005] To achieve the above purpose, the utility model is realized through the following technical solutions: A separable dismountable furnace cover of a tilting arc furnace includes an arc furnace main body, a dismountable furnace cover, a rotating shaft, a rocker, a telescopic bottom column, a bracket, a support rod, and a guiding plate. The dismountable furnace cover is installed on the top of the arc furnace main body, and the rotating shaft is assembled on the side of the arc furnace main body. The rotating shaft is connected to the bracket through a set support rod, and a telescopic bottom column is also installed on the bracket and connected to the bottom of the arc furnace main body. A rocker is also added to the rotating shaft. The dismountable furnace cover includes a central furnace cover, an intermediate furnace cover, an outer furnace cover, a pull rod handle, electrode holes, a smoke exhaust hole, a filter screen, an inner groove, a limiting port, and an extension plate. A plurality of extension plates are arranged on the side positions of the central furnace cover and the intermediate furnace cover, and an inner groove is also opened on the intermediate furnace cover. An inner groove is also opened on the outer furnace cover, and a smoke exhaust hole is also opened on the outer furnace cover. A plurality of electrode holes are opened on the central furnace cover, and the pull rod handle is assembled on the surface of the central furnace cover. Limiting ports are also arranged on the inner grooves opened in the intermediate furnace cover and the outer furnace cover.

[0006] Furthermore, the size of the extension plate matches the size of the limiting port.

[0007] Furthermore, a filter screen is also added at the position of the inner groove opened on the intermediate furnace cover.

[0008] Furthermore, the upper and lower ends of the telescopic bottom column are respectively fixed to the bottom end of the bracket and the bottom of the electric arc furnace body.

[0009] Furthermore, the pull rod handle is fixed to the top surface of the center furnace cover by welding.

[0010] Furthermore, guiding plates are arranged at both the left and right ends inside the outer furnace cover, and the positions of the guiding plates correspond to the smoke exhaust holes.

[0011] Advantages of the present utility model: The separable dismountable furnace cover of the tilting electric arc furnace of the present utility model, due to the addition of guiding plates, center furnace cover, intermediate furnace cover, outer furnace cover, smoke exhaust holes, filter screen, inner groove, limiting port and extension plate in this utility model. By installing guiding plates on the outer furnace cover, it helps to guide the high-temperature flue gas generated inside the electric arc furnace body to gather at the positions of the smoke exhaust holes, facilitating smoke exhaust. Inner grooves are opened on both the intermediate furnace cover and the outer furnace cover, and limiting ports are arranged on the inner grooves. The center furnace cover, intermediate furnace cover and outer furnace cover are disassembled and assembled by the extension plate entering the inner groove from the limiting port and rotating and positioning, achieving the disassembly of the furnace cover and reducing the replacement cost. Description of the Drawings

[0012] By reading the following detailed description of the non-restrictive embodiments with reference to the accompanying drawings, other features, objects and advantages of the present utility model will become more apparent:

[0013] Figure 1 It is a schematic diagram of the overall structure of the electric arc furnace of the separable dismountable furnace cover of the tilting electric arc furnace of the present utility model;

[0014] Figure 2 It is a schematic diagram of the inner structure of the separable dismountable furnace cover of the tilting electric arc furnace of the present utility model;

[0015] Figure 3 It is a schematic diagram of the overall structure of the separable dismountable furnace cover of the tilting electric arc furnace of the present utility model;

[0016] Figure 4 It is a schematic diagram of the disassembled structure of the separable dismountable furnace cover of the tilting electric arc furnace of the present utility model;

[0017] In the figure: 1 - Electric arc furnace body, 2 - Dismountable furnace cover, 3 - Rotating shaft, 4 - Rocker, 5 - Telescopic bottom column, 6 - Bracket, 7 - Support rod, 8 - Guiding plate, 21 - Center furnace cover, 22 - Intermediate furnace cover, 23 - Outer furnace cover, 24 - Pull rod handle, 25 - Electrode hole, 26 - Smoke exhaust hole, 27 - Filter screen, 28 - Inner groove, 29 - Limiting port, 210 - Extension plate. Detailed Embodiments

[0018] To make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] Please refer to Figures 1 - 4 , the present utility model provides a technical solution: a detachable and disassemblable furnace cover for a tilting electric arc furnace, including an electric arc furnace main body 1, a detachable and disassemblable furnace cover 2, a rotating shaft 3, a rocker 4, a telescopic bottom column 5, a bracket 6, a support rod 7 and a guiding plate 8. The detachable and disassemblable furnace cover 2 is installed on the top of the electric arc furnace main body 1, and the rotating shaft 3 is assembled on the side of the electric arc furnace main body 1. The rotating shaft 3 is connected to the bracket 6 by arranging the support rod 7, and a telescopic bottom column 5 is also installed on the bracket 6 and connected to the bottom of the electric arc furnace main body 1. A rocker 4 is also added to the rotating shaft 3. The detachable and disassemblable furnace cover 2 includes a central furnace cover 21, an intermediate furnace cover 22, an outer furnace cover 23, a pull rod handle 24, an electrode hole 25, a smoke exhaust hole 26, a filter screen 27, an inner groove 28, a limiting port 29 and an extension plate 210. A plurality of extension plates 210 are arranged at the side positions of the central furnace cover 21 and the intermediate furnace cover 22, and an inner groove 28 is also opened on the intermediate furnace cover 22. An inner groove 28 is also opened on the outer furnace cover 23, and a smoke exhaust hole 26 is also opened on the outer furnace cover 23. A plurality of electrode holes 25 are opened on the central furnace cover 21, and the pull rod handle 24 is assembled on the surface of the central furnace cover 21. Limiting ports 29 are also arranged on the inner grooves 28 opened in the intermediate furnace cover 22 and the outer furnace cover 23.

[0020] As the first embodiment of the present utility model: guiding plates 8 are arranged at both the left and right ends inside the outer furnace cover 23, and the position of the guiding plates 8 corresponds to the smoke exhaust hole 26. This design helps to guide the high-temperature flue gas generated inside the electric arc furnace main body 1 to gather at the position of the smoke exhaust hole 26 through installing the guiding plates 8 inside the outer furnace cover 23, facilitating smoke exhaust. The pull rod handle 24 is fixed on the top surface of the central furnace cover 21 by welding. This design provides the pull rod handle 24 for the central furnace cover 21, which helps to prevent the furnace cover from being overheated and facilitates disassembly. The upper and lower ends of the telescopic bottom column 5 are respectively fixed at the bottom end of the bracket 6 and the bottom of the electric arc furnace main body 1. This design uses the telescopic bottom column 5 to provide connection support for the tilting of the electric arc furnace main body 1, preventing the electric arc furnace main body 1 from tilting excessively. A filter screen 27 is also added at the position of the inner groove 28 opened in the intermediate furnace cover 22. This design helps to filter the high-temperature flue gas inside the electric arc furnace main body 1 through adding the filter screen 27 on the intermediate furnace cover 22, simply treating the impurities contained in the flue gas. The size of the extension plate 210 matches the size of the limiting port 29. This design assembles and disassembles the detachable and disassemblable furnace cover 2 by using the extension plate 210 to position the inner groove 28, with a simple structure.

[0021] As the second embodiment of the present utility model: When smelting raw materials in the electric arc furnace, energy is generated through the discharge of electrodes inside the electric arc furnace main body 1, so that high-temperature smelting raw materials are formed inside the electric arc furnace main body 1. High-temperature flue gas will be generated inside the electric arc furnace main body 1 and guided to the smoke exhaust hole 26 through the guide plate 8 on the external furnace cover 23. During the generation of the high-temperature flue gas, the high-temperature flue gas will contact the filter screen 27 on the intermediate furnace cover 22 for simple filtration. When pouring materials is required, the staff shakes the rotating shaft 3 through the rocker 4 to make the electric arc furnace main body 1 tilt clockwise. During the tilting process of the electric arc furnace main body 1, the telescopic bottom column 5 connected to the bottom will elongate. When the telescopic bottom column 5 is stretched to the maximum length, the electric arc furnace main body 1 cannot continue to tilt, and at the same time, the electric arc furnace main body 1 also facilitates the pouring work. Similarly, reverse the rocker 4 to make the electric arc furnace main body 1 return to the normal position. When replacing the top furnace cover of the electric arc furnace main body 1, the central furnace cover 21 in the detachable and assembled furnace cover 2 rotates by using the pull rod handle 24. When the extension plates 210 on both sides of the central furnace cover 21 rotate to the limit openings 29 on the inner groove 28 of the intermediate furnace cover 22, the extension plates 210 can be pulled out, and the central furnace cover 21 is disassembled from the furnace cover. Similarly, the intermediate furnace cover 22 is also disassembled from the inner groove 28 of the external furnace cover 23 in the same way. Finally, after replacing the furnace cover components damaged by high temperature, they are reinstalled into the detachable and assembled furnace cover 2 in the same way.

[0022] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0023] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A detachable furnace cover of a tilting electric arc furnace, comprising an electric arc furnace body (1), a detachable furnace cover (2), a rotating shaft (3), a rocker (4), a telescopic bottom column (5), a bracket (6), a support rod (7) and a guide plate (8), characterized in that: A detachable furnace cover (2) is installed on the top of the arc furnace body (1), and a rotating shaft (3) is installed on the side of the arc furnace body (1), the rotating shaft (3) is connected to the bracket (6) by providing a support rod (7), and a telescopic bottom column (5) is also installed on the bracket (6) and connected to the bottom of the arc furnace body (1), and a rocker (4) is also added to the rotating shaft (3); The detachable furnace cover (2) includes a central furnace cover (21), an intermediate furnace cover (22), an outer furnace cover (23), a pull rod handle (24), an electrode hole (25), a smoke exhaust hole (26), a filter screen (27), an inner groove (28), a limit opening (29) and an extension plate (210). The central furnace cover (21) and the intermediate furnace cover (22) are provided with a plurality of extension plates (210) at their side positions, and the intermediate furnace cover (22) is also provided with an inner groove (28). The outer furnace cover (23) is also provided with an inner groove (28), and the outer furnace cover (23) is also provided with a smoke exhaust hole (26). The central furnace cover (21) is provided with a plurality of electrode holes (25), and the pull rod handle (24) is assembled on the surface of the central furnace cover (21). The inner grooves (28) provided in the intermediate furnace cover (22) and the outer furnace cover (23) are also provided with limit openings (29).

2. The detachable and removable furnace cover of a tilting electric arc furnace according to claim 1, characterized in that: Guide plates (8) are provided at both left and right ends of the inner side of the external furnace cover (23), and the positions of the guide plates (8) correspond to the smoke exhaust holes (26).

3. The detachable and removable furnace cover of a tilting electric arc furnace according to claim 1, characterized in that: The pull rod handle (24) is fixed to the top surface of the central furnace cover (21) by welding.

4. The detachable and removable furnace cover of a tilting electric arc furnace according to claim 1, characterized in that: The upper and lower ends of the telescopic bottom column (5) are respectively fixed to the bottom end of the bracket (6) and the bottom of the arc furnace body (1).

5. The detachable furnace cover of a tilting electric arc furnace according to claim 1, characterized in that: A filter screen (27) is also added at the position of the inner groove (28) opened in the middle furnace cover (22).

6. The detachable and removable furnace cover of a tilting electric arc furnace according to claim 1, characterized in that: The size of the extension plate (210) matches the size of the limiting opening (29).

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