Dust removal device of electric arc furnace

Abstract

The utility model discloses a dust removal device of an electric arc furnace, and relates to the technical field of electric arc furnace dust removal. The electric arc furnace comprises an electric arc furnace body, a furnace mouth and a dust hood, the furnace mouth is arranged on the upper surface of the electric arc furnace body, the furnace mouth is communicated with the interior of the electric arc furnace body, the dust hood is arranged above the furnace mouth, a heat conducting plate is arranged on the peripheral side of the dust hood, a plurality of radiating fins are embedded on the peripheral side of the heat conducting plate, and the radiating fins are in a circumferential array. A connecting flange is installed on the upper surface of the dust collection cover, a plurality of connecting bolts are embedded in the upper surface of the connecting flange, and a dust collection pipeline is further welded to the upper surface of the connecting flange. Through the structure of the dust collection cover, the dust collection pipeline and the dust collection fan, smoke dust generated when the electric arc furnace works can be conveniently absorbed and treated in a centralized mode, pollution to the environment is avoided, the working environment of operators is optimized, it is guaranteed that the operators suck too much smoke dust, and harm to the bodies of the operators is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of dust removal technology for electric arc furnaces, and in particular relates to a dust removal device for electric arc furnaces. Background Art

[0002] An electric arc furnace is an electric furnace that uses the high temperature generated by an electric arc on electrodes to melt ores and metals. The energy is highly concentrated when the gas discharge forms an arc, with the arc temperature exceeding 3000℃. For metal smelting, electric arc furnaces offer greater process flexibility than other steelmaking furnaces, effectively removing impurities such as sulfur and phosphorus. The furnace temperature is easy to control, and the equipment occupies a small area, making it suitable for smelting high-quality alloy steels. Industrial furnaces that generate heating through an electric arc using metal or non-metal electrodes are called electric arc furnaces. Electric arc furnaces can be classified according to the arc type, including three-phase electric arc furnaces, consumable electric arc furnaces, single-phase electric arc furnaces, and resistance electric arc furnaces.

[0003] In the prior art, electric arc furnaces generate a large amount of smoke and dust during production and use, which can easily pollute the environment, affect the working environment of operators, and cause health problems for workers if they inhale too much smoke and dust. Therefore, a dust removal device for electric arc furnaces is proposed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a dust removal device for electric arc furnaces to solve existing problems.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a dust removal device for an electric arc furnace, comprising an electric arc furnace body, a furnace opening, and a dust collection hood. The furnace opening is located on the upper surface of the electric arc furnace body and is connected to the interior of the furnace body. The dust collection hood is positioned above the furnace opening. A heat-conducting plate is arranged around the periphery of the dust collection hood, and several heat dissipation fins are embedded around the periphery of the heat-conducting plate to prevent the dust collection hood from overheating after prolonged operation. The heat dissipation fins are arranged in a circumferential array. A connecting flange is installed on the upper surface of the dust collection hood, and several connecting bolts are embedded on the upper surface of the connecting flange. A dust collection pipe is also welded to the upper surface of the connecting flange to facilitate the absorption and centralized treatment of the smoke and dust generated during the operation of the electric arc furnace, avoiding environmental pollution, optimizing the working environment for operators, and ensuring that workers do not inhale excessive smoke and dust, thus preventing physical harm to workers.

[0007] Furthermore, the lower end of the connecting bolt is screwed to the upper surface of the dust collection hood, the inside of the dust collection pipe is connected to the inside of the dust collection hood, and a cooling pipe is connected to the right end of the dust collection pipe.

[0008] Furthermore, a water tank is connected to the lower end of the cooling pipe, and several spray pipes are embedded around the cooling pipe in a circular array. One end of each spray pipe is connected to the interior of the cooling pipe.

[0009] Furthermore, the other end of the spray pipe is connected to a water collection plate, and the water collection plate has a cavity inside. The other end of the spray pipe is connected to the cavity inside the water collection plate, which facilitates the cooling and dust suppression of the smoke and dust, and facilitates subsequent collection and treatment.

[0010] Furthermore, a recycling pipe is embedded on the lower surface of the water collection plate, and the upper end of the recycling pipe is connected to the internal cavity of the water collection plate.

[0011] Furthermore, the lower end of the recycling pipe is connected to the inside of the water tank, and a water pump is installed inside the water tank.

[0012] Furthermore, the upper surface of the water tank is provided with a replenishment port, which is connected to the interior of the water tank.

[0013] Furthermore, a connecting pipe is connected to the right side of the cooling pipe, the connecting pipe is located below the water collection plate, the left end of the connecting pipe is connected to the inside of the cooling pipe, and the right end of the connecting pipe is installed with a dust extraction fan.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model, through the structure of a dust hood, dust duct, and dust fan, facilitates the absorption and centralized treatment of the smoke and dust generated during the operation of the electric arc furnace, avoids environmental pollution, optimizes the working environment of operators, and ensures that workers do not inhale too much smoke and dust, thus avoiding physical harm to the workers.

[0016] 2. This utility model uses a heat-conducting plate and heat dissipation fin structure to prevent the dust hood from overheating after prolonged operation, since the smoke and dust generated during the production of electric arc furnaces contain a large amount of heat. At the same time, the structure of cooling pipe, water collection plate and spray pipe facilitates the cooling and dust reduction of smoke and dust, and facilitates subsequent collection and treatment.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying 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.

[0019] Figure 1 This is a schematic diagram of the structure of a dust removal device for an electric arc furnace according to the present invention;

[0020] Figure 2 This is a front view structural schematic diagram of a dust removal device for an electric arc furnace according to the present invention;

[0021] Figure 3 This is a right-side structural schematic diagram of a dust removal device for an electric arc furnace according to the present invention;

[0022] Figure 4 This is a top view schematic diagram of a dust removal device for an electric arc furnace according to the present invention.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Electric arc furnace body; 2. Furnace opening; 3. Dust hood; 4. Heat conduction plate; 5. Heat dissipation fins; 6. Connecting flange; 7. Connecting bolts; 8. Dust suction pipe; 9. Cooling pipe; 10. Spray pipe; 11. Water collection plate; 12. Water tank; 13. Recycling pipe; 14. Connecting pipe; 15. Dust suction fan; 16. Replenishment port. DETAILED DESCRIPTION

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Please see Figures 1-4As shown, this utility model is a dust removal device for an electric arc furnace, including an electric arc furnace body 1, a furnace opening 2, and a dust collection hood 3. The furnace opening 2 is located on the upper surface of the electric arc furnace body 1 and is connected to the interior of the electric arc furnace body 1. The dust collection hood 3 is located above the furnace opening 2. A heat-conducting plate 4 is arranged around the dust collection hood 3, and several heat dissipation fins 5 are embedded around the heat-conducting plate 4 to prevent the dust collection hood 3 from overheating after prolonged operation. The heat dissipation fins 5 are arranged in a circumferential array. A connecting flange 6 is installed on the upper surface of the dust collection hood 3, and several connecting bolts 7 are embedded on the upper surface of the connecting flange 6. A dust collection pipe 8 is also welded to the upper surface of the connecting flange 6 to facilitate the absorption and centralized treatment of the smoke and dust generated during the operation of the electric arc furnace, avoiding environmental pollution, optimizing the working environment of operators, and ensuring that workers do not inhale too much smoke and dust, thus preventing physical harm to workers.

[0028] The lower end of the connecting bolt 7 is screwed and fixed to the upper surface of the dust hood 3. The inside of the dust suction pipe 8 is connected to the inside of the dust suction hood 3. The right end of the dust suction pipe 8 is connected to the cooling pipe 9. The lower end of the cooling pipe 9 is connected to the water tank 12. Several spray pipes 10 are embedded around the cooling pipe 9. The spray pipes 10 are arranged in a circular array. One end of the spray pipe 10 is connected to the inside of the cooling pipe 9.

[0029] The other end of the spray pipe 10 is connected to a water collection plate 11. The water collection plate 11 has a cavity inside. The other end of the spray pipe 10 is connected to the cavity inside the water collection plate 11 to facilitate the cooling and dust suppression of smoke and dust, and to facilitate the subsequent collection and treatment. A recycling pipe 13 is embedded on the lower surface of the water collection plate 11, and the upper end of the recycling pipe 13 is connected to the cavity inside the water collection plate 11.

[0030] The lower end of the recycling pipe 13 is connected to the inside of the water tank 12. A water pump is installed inside the water tank 12. A replenishment port 16 is provided on the upper surface of the water tank 12, and the replenishment port 16 is connected to the inside of the water tank 12.

[0031] A connecting pipe 14 is connected to the right side of the cooling pipe 9. The connecting pipe 14 is located below the water collection plate 11. The left end of the connecting pipe 14 is connected to the inside of the cooling pipe 9, and the right end of the connecting pipe 14 is installed with the dust extraction fan 15.

[0032] Please see Figures 1-4As shown, this utility model is a dust removal device for an electric arc furnace. Its usage is as follows: The structure of the dust extraction hood 3, dust extraction pipe 8, and dust extraction fan 15 facilitates the absorption and centralized treatment of the smoke and dust generated during the operation of the electric arc furnace, preventing environmental pollution, optimizing the working environment for operators, and ensuring that workers do not inhale excessive smoke and dust, thus avoiding physical harm. The structure of the heat-conducting plate 4 and heat dissipation fins 5 prevents the dust extraction hood from overheating after prolonged operation, as the smoke and dust generated during electric arc furnace production contains a large amount of heat. Simultaneously, the structure of the cooling pipe 9, water collection plate 11, and spray pipe 10 facilitates the cooling and dust reduction treatment of the smoke and dust, making subsequent collection and treatment convenient.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A dust removal device for an electric arc furnace, comprising an electric arc furnace body (1), a furnace opening (2), and a dust suction hood (3), characterized in that: The furnace opening (2) is located on the upper surface of the electric arc furnace body (1). The furnace opening (2) is connected to the interior of the electric arc furnace body (1). The dust collection hood (3) is located above the furnace opening (2). A heat-conducting plate (4) is provided around the dust collection hood (3). Several heat dissipation fins (5) are embedded around the heat-conducting plate (4). The heat dissipation fins (5) are arranged in a circumferential array. A connecting flange (6) is installed on the upper surface of the dust collection hood (3). Several connecting bolts (7) are embedded on the upper surface of the connecting flange (6). A dust collection pipe (8) is also welded to the upper surface of the connecting flange (6).

2. The dust removal device for an electric arc furnace according to claim 1, characterized in that, The lower end of the connecting bolt (7) is screwed to the upper surface of the dust hood (3), the inside of the dust suction pipe (8) is connected to the inside of the dust suction hood (3), and the right end of the dust suction pipe (8) is connected to a cooling pipe (9).

3. The dust removal device for an electric arc furnace according to claim 2, characterized in that, The lower end of the cooling pipe (9) is connected to a water tank (12). Several spray pipes (10) are embedded around the cooling pipe (9). The spray pipes (10) are arranged in a circular array. One end of the spray pipe (10) is connected to the inside of the cooling pipe (9).

4. The dust removal device for an electric arc furnace according to claim 3, characterized in that, The other end of the spray pipe (10) is connected to a water collection plate (11), and the water collection plate (11) has a cavity inside. The other end of the spray pipe (10) is connected to the cavity inside the water collection plate (11).

5. A dust removal device for an electric arc furnace according to claim 4, characterized in that, The lower surface of the water collection plate (11) is fitted with a recycling pipe (13), and the upper end of the recycling pipe (13) is connected to the internal cavity of the water collection plate (11).

6. A dust removal device for an electric arc furnace according to claim 5, characterized in that, The lower end of the recycling pipe (13) is connected to the inside of the water tank (12), and a water pump is installed inside the water tank (12).

7. A dust removal device for an electric arc furnace according to claim 6, characterized in that, The water tank (12) has a replenishment port (16) on its upper surface, and the replenishment port (16) is connected to the inside of the water tank (12).

8. A dust removal device for an electric arc furnace according to claim 2, characterized in that, The cooling pipe (9) is connected to a connecting pipe (14) on the right side. The connecting pipe (14) is located below the water collection plate (11). The left end of the connecting pipe (14) is connected to the inside of the cooling pipe (9). The right end of the connecting pipe (14) is installed with a dust extraction fan (15).

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