Smoke removal device for smelting electric furnace

Abstract

The utility model relates to the technical field of environmental protection, in particular to a smoke removal device for a smelting electric furnace, which can enable a smoke suction funnel to move when materials are hoisted into the smelting electric furnace, prevents the smoke suction funnel from influencing the hoisting operation, and is convenient to use and high in reliability and practicability. Comprising a bottom plate and a smelting electric furnace, the device further comprises a smoke suction funnel, a conveying mechanism, a moving mechanism and a negative pressure air suction mechanism, the smoke suction funnel is located above the smelting electric furnace and installed on the conveying mechanism, the smoke suction funnel communicates with the conveying mechanism, the conveying mechanism communicates with the negative pressure air suction mechanism, the conveying mechanism is installed on the moving mechanism, and the moving mechanism is used for moving the conveying mechanism. The conveying mechanism has the function of conveying air.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection technology, and in particular to a smoke removal device for a smelting electric furnace. Background Technology

[0002] A smelting electric furnace is a device used for smelting steel, and it has wide applications in the casting industry. Because smelting furnaces generate a large amount of flue gas during operation, a fume extraction system is needed to treat this gas. In the prior art, utility model patent application number 202122135640.1 discloses a fume extraction system for a large smelting furnace, which mainly consists of a smelting furnace, a support frame, and a fume extraction mechanism. The fume extraction mechanism is located above the smelting furnace, and during use, the flue gas generated by the smelting furnace simply enters the fume extraction mechanism for treatment. However, the inventors believe that this system has the following problems during use: when large pieces of steel need to be added to the smelting furnace, an external hoisting device is required to lift the steel into the furnace through an opening at the top. The fume extraction mechanism in the aforementioned prior art is located above the smelting furnace, occupying the space above the furnace, making it inconvenient for the hoisting device to lift the steel into the furnace, resulting in inconvenience and poor practicality. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a fume extraction device for smelting electric furnaces that allows the fume extraction funnel to move when hoisting materials into the smelting electric furnace, thus avoiding the fume extraction funnel from affecting the hoisting operation. It is convenient to use, reliable and practical.

[0004] This utility model discloses a fume extraction device for a smelting electric furnace, comprising a base plate and a smelting electric furnace, with the furnace mounted on the upper part of the base plate. It also includes a fume extraction funnel, a conveying mechanism, a moving mechanism, and a negative pressure suction mechanism. The fume extraction funnel is located above the smelting electric furnace and is mounted on the conveying mechanism, which is connected to the conveying mechanism. The conveying mechanism is also connected to the negative pressure suction mechanism, which is mounted on the moving mechanism and is used to move the conveying mechanism, which in turn transports air. The output end of the negative pressure suction mechanism is connected to an external air purification system. When the smelting electric furnace is operating, the negative pressure suction mechanism is activated to allow the smelting furnace to smelt. The flue gas generated by the electric furnace passes sequentially through the fume hopper, conveying mechanism, and negative pressure suction mechanism before entering the external air purification system for purification. When materials need to be hoisted into the smelting furnace, the moving mechanism is activated, which moves the fume hopper via the conveying mechanism, moving the fume hopper above the smelting furnace. Then, the external materials are hoisted into the smelting furnace from above. After the material hoisting is completed, the fume hopper is moved back onto the smelting furnace. The ability to move the fume hopper while hoisting materials into the smelting furnace avoids the fume hopper interfering with the hoisting operation, making it convenient to use and highly reliable and practical.

[0005] Preferably, the conveying mechanism includes pipe A, pipe B, and bolts. Pipe B is slidably mounted on pipe A and is connected to pipe A. A fumigation funnel is mounted on the lower end of pipe B and is connected to pipe B. Bolts are screwed onto pipe A and tightened to pipe B. When installing pipe B, pipe B can first be slid on pipe A until the fumigation funnel is directly above the smelting furnace. Then, the bolts are rotated to tighten and fix pipe B onto pipe A. The position of the fumigation funnel can be adjusted according to the position of the smelting furnace, improving convenience.

[0006] Preferably, the moving mechanism includes an electric turntable, a support frame, a hydraulic cylinder, a push rod, and a lifting plate. The electric turntable is fixedly installed on the upper end of the base plate, the support frame is installed on the rotating end of the electric turntable, the hydraulic cylinder is fixedly installed on the upper end of the support frame, the push rod is slidably installed on the support frame, the upper end of the push rod is connected to the output end of the hydraulic cylinder, the lifting plate is fixedly installed on the lower end of the push rod, and pipe A is fixedly installed on the lower end of the lifting plate. When the hydraulic cylinder is opened, the hydraulic cylinder, through the push rod, causes the lifting plate to adjust the height of pipe A, which in turn causes pipe B to adjust the height of the fume funnel, making the distance between the fume funnel and the smelting furnace a suitable distance for air intake; this facilitates the intake of flue gas. When it is necessary to hoist materials into the smelting furnace, the electric turntable is opened, the electric turntable rotates the support frame, which in turn causes the push rod to rotate the lifting plate, causing pipe A to rotate pipe B and the fume funnel, so that the fume funnel can be moved away above the smelting furnace; this facilitates the movement of the fume funnel.

[0007] Preferably, the negative pressure suction mechanism includes an induced draft fan, a gas supply hose, an exhaust pipe, and a filter cartridge. The induced draft fan is fixedly installed on the base plate. The input end of the induced draft fan is connected to pipe A through the gas supply hose, and the output end of the induced draft fan is connected to the filter cartridge through the exhaust pipe. A filter plate is installed inside the filter cartridge. The output end of the filter cartridge is connected to an external air purification mechanism. When the induced draft fan is turned on, the flue gas generated by the smelting electric furnace enters the induced draft fan sequentially through pipe B, pipe A, and the gas supply hose. Then, the flue gas enters the filter cartridge through the exhaust pipe for filtration. The filtered flue gas then enters the external air purification mechanism for further purification. This facilitates the intake of flue gas.

[0008] Preferably, the system also includes a heat exchange hose, a water pump, and a cooling tower. The heat exchange hose is wound around pipes A and B. The inlet end of the heat exchange hose is connected to the water pump, and the outlet end of the water pump is connected to the cooling tower. The cooling tower is mounted on a base plate, and the outlet end of the heat exchange hose is connected to the inlet end of the cooling tower. When the water pump is turned on, cooling water from the cooling tower enters the heat exchange hose through the pump. The cooling water then exchanges heat with pipes A and B through the wall of the heat exchange hose, cooling pipes A and B and preventing them from being at high temperatures for extended periods. Afterward, the water in the heat exchange hose flows back to the cooling tower for further cooling. By cooling pipes A and B, the service life of pipes A and B is ensured.

[0009] Preferably, the hydraulic cylinder is equipped with a dust cover.

[0010] Preferably, the lifting plate is slidably mounted on the support frame.

[0011] Compared with the prior art, the advantages of this utility model are: when hoisting materials into the smelting electric furnace, the smoke funnel can be moved, avoiding the smoke funnel from affecting the hoisting operation, making it convenient to use, reliable and practical. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the second isometric structure of this utility model;

[0014] Figure 3 This is a structural diagram of heat exchange hoses, pipe A, and pipe B, etc.

[0015] Figure 4 This is a structural diagram of pipe A, pipe B, and bolts, etc.

[0016] Figure 5 It is a structural diagram of hydraulic cylinders, push rods, and lifting plates, etc.

[0017] The following are labels in the attached diagram: 1. Base plate; 2. Smelting electric furnace; 3. Furnace; 4. Pipe A; 5. Pipe B; 6. Bolt; 7. Electric turntable; 8. Support frame; 9. Hydraulic cylinder; 10. Push rod; 11. Lifting plate; 12. Exhaust fan; 13. Gas supply hose; 14. Exhaust pipe; 15. Filter cartridge; 16. Heat exchange hose; 17. Water pump; 18. Cooling tower. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0019] Example 1

[0020] like Figures 1 to 5 The smelting circuit smoke removal device of this utility model includes a base plate 1, a smelting electric furnace 2, a smoke funnel 3, a conveying mechanism, a moving mechanism, and a negative pressure suction mechanism. The smelting electric furnace 2 is installed on the upper end of the base plate 1. The smoke funnel 3 is located above the smelting electric furnace 2 and is installed on the conveying mechanism. The smoke funnel 3 is connected to the conveying mechanism, and the conveying mechanism is connected to the negative pressure suction mechanism. The conveying mechanism is installed on the moving mechanism and is used to move the conveying mechanism. The conveying mechanism has the function of conveying air. The output end of the negative pressure suction mechanism is connected to an external air purification mechanism. When the smelting electric furnace 2 is working, the negative pressure suction mechanism is opened, allowing the smelting electric furnace 2 to... The generated flue gas passes sequentially through the fume hopper 3, the conveying mechanism, and the negative pressure suction mechanism before entering the external air purification mechanism for purification. When materials need to be hoisted into the smelting furnace 2, the moving mechanism is activated, and the moving mechanism moves the fume hopper 3 via the conveying mechanism, moving the fume hopper 3 above the smelting furnace 2. Then, the external materials are hoisted into the smelting furnace 2 from above. After the material hoisting is completed, the fume hopper 3 is moved back onto the smelting furnace 2. The ability to move the fume hopper 3 while hoisting materials into the smelting furnace 2 avoids the fume hopper 3 interfering with the hoisting operation, making it convenient to use and highly reliable and practical.

[0021] like Figure 1 and Figure 3 The conveying mechanism includes pipe A4, pipe B5, and bolt 6. Pipe B5 is slidably mounted on pipe A4 and is connected to pipe A4. The smoke funnel 3 is installed at the lower end of pipe B5 and is connected to pipe B5. Bolt 6 is screwed onto pipe A4 and then tightened and fixed to pipe B5. When installing pipe B5, pipe B5 can first be slid on pipe A4 so that the smoke funnel 3 is directly above the smelting furnace 2. Then, bolt 6 is rotated to tighten and fix pipe B5 onto pipe A4. The position of the smoke funnel 3 can be adjusted according to the position of the smelting furnace 2, which improves convenience.

[0022] like Figure 1 and Figure 5The moving mechanism includes an electric turntable 7, a support frame 8, a hydraulic cylinder 9, a push rod 10, and a lifting plate 11. The electric turntable 7 is fixedly installed on the upper end of the base plate 1. The support frame 8 is installed on the rotating end of the electric turntable 7. The hydraulic cylinder 9 is fixedly installed on the upper end of the support frame 8. The push rod 10 is slidably installed on the support frame 8. The upper end of the push rod 10 is connected to the output end of the hydraulic cylinder 9. The lifting plate 11 is fixedly installed on the lower end of the push rod 10. Pipe A4 is fixedly installed on the lower end of the lifting plate 11. When the hydraulic cylinder 9 is opened, the hydraulic cylinder 9 raises the plate via the push rod 10. The lowering plate 11 adjusts the height of pipe A4, which in turn adjusts the height of the smoke funnel 3 via pipe B5, ensuring that the distance between the smoke funnel 3 and the smelting furnace 2 is suitable for air intake; this facilitates the intake of flue gas. When materials need to be hoisted into the smelting furnace 2, the electric turntable 7 is turned on, which rotates the support frame 8, causing the push rod 10 to rotate the lifting plate 11, which in turn rotates pipe A4, pipe B5, and the smoke funnel 3, allowing the smoke funnel 3 to be moved away from above the smelting furnace 2; this facilitates the movement of the smoke funnel 3.

[0023] like Figure 3 The negative pressure suction mechanism includes an induced draft fan 12, a gas supply hose 13, an exhaust pipe 14, and a filter cartridge 15. The induced draft fan 12 is fixedly installed on the base plate 1. The input end of the induced draft fan 12 is connected to pipe A4 through the gas supply hose 13, and the output end of the induced draft fan 12 is connected to the filter cartridge 15 through the exhaust pipe 14. A filter plate is installed inside the filter cartridge 15. The output end of the filter cartridge 15 is connected to an external air purification mechanism. When the induced draft fan 12 is turned on, the flue gas generated by the smelting electric furnace 2 enters the induced draft fan 12 sequentially through pipe B5, pipe A4, and the gas supply hose 13. Then, the flue gas enters the filter cartridge 15 through the exhaust pipe 14 for filtration. The filtered flue gas then enters the external air purification mechanism for further purification, thus facilitating the intake of flue gas. A dust cover is installed on the hydraulic cylinder 9, and the lifting plate 11 is slidably installed on the support frame 8.

[0024] Example 2

[0025] Based on Example 1, a heat exchange hose 16, a water pump 17, and a cooling tower 18 are added. The heat exchange hose 16 is wound around pipes A4 and B5. The input end of the heat exchange hose 16 is connected to the water pump 17, and the output end of the water pump 17 is connected to the cooling tower 18. The cooling tower 18 is installed on the base plate 1, and the output end of the heat exchange hose 16 is connected to the input end of the cooling tower 18. The water pump 17 is turned on, allowing the cooling water in the cooling tower 18 to enter the heat exchange hose 16 through the water pump 17. Then, the cooling water exchanges heat with pipes A4 and B5 through the pipe wall of the heat exchange hose 16, cooling pipes A4 and B5 and preventing them from being in a high-temperature state for a long time. Afterward, the water in the heat exchange hose 16 flows back to the cooling tower 18 for heat dissipation. By cooling pipes A4 and B5, the service life of pipes A4 and B5 is guaranteed.

[0026] The smelting electric furnace 2, smoke funnel 3, electric turntable 7, hydraulic cylinder 9, induced draft fan 12, and cooling tower 18 of the smelting electric furnace smoke removal device of this utility model are all purchased from the market. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A fume extraction device for a smelting electric furnace, comprising a base plate (1) and a smelting electric furnace (2), wherein the smelting electric furnace (2) is mounted on the upper end of the base plate (1); characterized in that, It also includes a smoking funnel (3), a conveying mechanism, a moving mechanism and a negative pressure suction mechanism. The smoking funnel (3) is located above the smelting electric furnace (2). The smoking funnel (3) is installed on the conveying mechanism and is connected to the conveying mechanism. The conveying mechanism is connected to the negative pressure suction mechanism. The conveying mechanism is installed on the moving mechanism and is used to move the conveying mechanism. The conveying mechanism has the function of conveying air.

2. The fume extraction device for a smelting electric furnace as described in claim 1, characterized in that, The conveying mechanism includes pipe A (4), pipe B (5) and bolt (6). Pipe B (5) is slidably installed on pipe A (4) and is connected to pipe A (4). Smoking funnel (3) is installed at the lower end of pipe B (5) and is connected to pipe B (5). Bolt (6) is screwed onto pipe A (4) and bolt (6) is tightened and fixed onto pipe B (5).

3. The fume extraction device for a smelting electric furnace as described in claim 2, characterized in that, The moving mechanism includes an electric turntable (7), a support frame (8), a hydraulic cylinder (9), a push rod (10), and a lifting plate (11). The electric turntable (7) is fixedly installed on the upper end of the base plate (1). The support frame (8) is installed on the rotating end of the upper part of the electric turntable (7). The hydraulic cylinder (9) is fixedly installed on the upper end of the support frame (8). The push rod (10) is slidably installed on the support frame (8). The upper end of the push rod (10) is connected to the output end of the hydraulic cylinder (9). The lifting plate (11) is fixedly installed on the lower end of the push rod (10). The pipe A (4) is fixedly installed on the lower end of the lifting plate (11).

4. The fume removal device for a smelting electric furnace as described in claim 2, characterized in that, The negative pressure suction mechanism includes a blower (12), a gas delivery hose (13), an exhaust pipe (14), and a filter cylinder (15). The blower (12) is fixedly installed on the base plate (1). The input end of the blower (12) is connected to the pipe A (4) through the gas delivery hose (13). The output end of the blower (12) is connected to the filter cylinder (15) through the exhaust pipe (14). A filter plate is installed inside the filter cylinder (15).

5. The fume removal device for a smelting electric furnace as described in claim 2, characterized in that, It also includes a heat exchange hose (16), a water pump (17) and a cooling tower (18). The heat exchange hose (16) is wrapped around pipe A (4) and pipe B (5). The input end of the heat exchange hose (16) is connected to the water pump (17). The output end of the water pump (17) is connected to the output end of the cooling tower (18). The cooling tower (18) is installed on the base plate (1). The output end of the heat exchange hose (16) is connected to the input end of the cooling tower (18).

6. The fume removal device for a smelting electric furnace as described in claim 3, characterized in that, The hydraulic cylinder (9) is equipped with a dust cover.

7. The fume extraction device for a smelting electric furnace as described in claim 3, characterized in that, The lifting plate (11) is slidably mounted on the support frame (8).

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