A smoke treatment device for an electric furnace

Abstract

The utility model discloses an electric furnace is with flue dust processing apparatus belongs to flue dust processing technical field, including flue dust processing jar, the one side intercommunication of flue dust processing jar has the smoke pipe, the other end of smoke pipe is provided with dust collecting cap, the top of flue dust processing jar is provided with the support steel pipe, the top of support steel pipe is provided with swivel joint, the bottom of support steel pipe penetrates flue dust processing jar and is provided with the shower head, a plurality of groups of nozzles are arranged on the surface of shower head, the bottom of flue dust processing jar is installed with the water sending mechanism for conveying water flow, the other end of water sending mechanism is connected with swivel joint, the upper surface of flue dust processing jar is installed with the rotation subassembly for driving support steel pipe rotation, the inner chamber of flue dust processing jar is provided with filter plate, can promote the filtration effect to electric furnace flue dust through above -mentioned scheme, increase the processing quality of flue dust processing equipment to electric furnace flue dust.

Description

Technical Field

[0001] This utility model relates to the field of flue gas treatment technology, specifically to a flue gas treatment device for electric furnaces. Background Technology

[0002] An electric furnace is a heating furnace that converts electrical energy into heat to heat workpieces. Electric furnaces can be classified into resistance furnaces, induction furnaces, electric arc furnaces, plasma furnaces, electron beam furnaces, etc. During the operation of electric furnaces, a large amount of flue gas is easily generated. If the flue gas is not treated, it can easily affect the surrounding environment and, in severe cases, harm people's health. Therefore, it is necessary to treat the flue gas from electric furnaces.

[0003] For example, CN211668290U provides a dust collection device for electric furnaces, including a collection box. The top of the collection box has a dust suction port, and a fixed pipe is fixed to the outside of the dust suction port. A connecting pipe is rotatably connected to the inside of the fixed pipe. The top of the connecting pipe extends to the outside of the fixed pipe. A dust suction pipe is fixed to the top of the connecting pipe, and a dust suction hood is fixed to the other end of the dust suction pipe. A sealing groove is opened in the inner ring of the top of the fixed pipe, and a fixing ring is fitted on the outside of the connecting pipe. A sealing ring is fixed to the bottom of the fixing ring.

[0004] The dust collection device described above extracts the dust generated by the electric furnace and then filters it through an internal filter before discharging it. However, this simple filtration by the filter means that the discharged dust still contains particulate matter, reducing the filtration effect on the electric furnace dust and lowering the quality of the dust treatment equipment. Therefore, we need to propose a dust treatment device for electric furnaces. Utility Model Content

[0005] The purpose of this invention is to provide a fume treatment device for electric furnaces. Through the cooperation of a rotating component and a spray head, the spray head can rotate and spray the fume in the fume treatment tank during fume filtration, increasing the contact surface between the sprayed water and the fume. The filter plate can then further filter the fume in the fume treatment tank before discharge, achieving dual filtration of electric furnace fumes. This improves the filtration effect of electric furnace fumes and enhances the treatment quality of the fume treatment equipment, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dust treatment device for electric furnaces, comprising a dust treatment tank, an inlet pipe connected to one side of the dust treatment tank, a dust collection hood at the other end of the inlet pipe, a supporting steel pipe at the top of the dust treatment tank, a rotary joint at the top of the supporting steel pipe, a spray head at the bottom end of the supporting steel pipe penetrating the dust treatment tank, a plurality of nozzles on the surface of the spray head, a water delivery mechanism for conveying water flow installed at the bottom of the dust treatment tank, the other end of the water delivery mechanism being connected to the rotary joint, a rotating assembly for driving the supporting steel pipe to rotate installed on the upper surface of the dust treatment tank, and a filter plate installed in the inner cavity of the dust treatment tank.

[0007] Preferably, the water delivery mechanism includes a water tank, one side of which is connected to a connecting pipe, the other end of which is connected to the bottom of the dust treatment tank, a water delivery assembly is provided on the other side of the water tank, the other end of which is connected to a rotary joint, a mounting bracket is bolted to the top of the water tank, and a cooling fan is provided at the top of the mounting bracket.

[0008] Preferably, the water delivery assembly includes a water pump, which is installed on the outer wall of the water tank. The water pump's inlet is connected to a water pumping pipe, and the other end of the water pump is connected to the inner cavity of the water tank. The water pump's outlet is connected to a water delivery pipe, and the other end of the water delivery pipe is connected to a rotary joint.

[0009] Preferably, a support plate is fixedly connected to the upper surface of the dust treatment tank, and a slot is provided at the top of the support plate, and the surface of the water supply pipe is engaged with the inner cavity of the slot.

[0010] Preferably, the rotating assembly includes a stepper motor, the output shaft of which is connected to a drive gear via a reducer, and a gear ring is meshed with the outer surface of the drive gear, the inner cavity of which is fixedly connected to the outer surface of the supporting steel pipe.

[0011] Preferably, the filter plate is arranged in a ring shape, and a connecting plate is fixedly connected to the lower surface of the filter plate. The surface of the connecting plate is provided with mounting holes, and the mounting holes are bolted to the inner wall of the dust treatment tank by bolts.

[0012] Preferably, an extension plate is bolted to the outer wall of the supporting steel pipe, and a soft brush is provided on the lower surface of the extension plate, the surface of the soft brush being in contact with the surface of the annular filter plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides a fume treatment device for electric furnaces. Through the cooperation of a rotating component and a support pipe, the rotating component drives the support pipe to rotate, and the support pipe drives the spray head to rotate, realizing the rotational spraying of fume in the fume treatment tank. This increases the contact surface between the water flow and the fume, improving the filtration effect of the water flow on the fume. Through the setting of the filter plate, the fume after water filtration can be filtered again. Finally, it is discharged through the exhaust port at the top of the fume treatment tank, realizing dual filtration of electric furnace fumes. The above solution can improve the filtration effect of electric furnace fumes and increase the treatment quality of electric furnace fumes by the fume treatment equipment.

[0014] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a top view of the structure of this utility model; Figure 4 This is a schematic diagram of a partial cross-section of the present invention; Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0016] In the diagram: 1. Smoke and dust treatment tank; 2. Smoke inlet pipe; 3. Dust collection hood; 4. Supporting steel pipe; 5. Rotary joint; 6. Spray head; 7. Nozzle; 8. Water delivery mechanism; 81. Water tank; 82. Connecting pipe; 83. Mounting bracket; 84. Cooling fan; 85. Water pump; 86. Water extraction pipe; 87. Water delivery pipe; 9. Rotating assembly; 91. Stepper motor; 92. Drive gear; 93. Gear ring; 10. Filter plate; 11. Support plate; 12. Slot; 13. Connecting plate; 14. Mounting hole; 15. Extension plate; 16. Soft brush. Detailed Implementation

[0017] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-5 This utility model provides a technical solution: a dust treatment device for electric furnaces, including a dust treatment tank 1, a flue gas inlet pipe 2 connected to one side of the dust treatment tank 1, a dust collection hood 3 provided at the other end of the flue gas inlet pipe 2, a supporting steel pipe 4 provided at the top of the dust treatment tank 1, a rotary joint 5 provided at the top of the supporting steel pipe 4, a spray head 6 provided at the bottom end of the supporting steel pipe 4 through the dust treatment tank 1, a plurality of nozzles 7 provided on the surface of the spray head 6, a water delivery mechanism 8 for conveying water flow installed at the bottom end of the dust treatment tank 1, the other end of the water delivery mechanism 8 connected to the rotary joint 5, a rotating component 9 for driving the supporting steel pipe 4 to rotate installed on the upper surface of the dust treatment tank 1, and a filter plate 10 provided in the inner cavity of the dust treatment tank 1; First, connect the dust collection hood 3 to the flue gas outlet of the electric furnace. The dust collection hood 3 sends the flue gas into the inner cavity of the dust treatment tank 1 through the flue gas inlet pipe 2. Start the water supply mechanism 8 to inject water into the rotary joint 5. The rotary joint 5 injects water into the spray head 6 through the supporting steel pipe 4, so that the nozzle 7 sprays water to spray and filter the flue gas in the dust treatment tank 1. At the same time, start the rotating component 9 to drive the supporting steel pipe 4 to rotate, so that the spray head 6 rotates and sprays. After spraying and filtering, the flue gas passes through the filter plate 10 for a second filtration and is discharged through the flue gas outlet at the top of the dust treatment tank 1. This achieves double filtration of electric furnace flue gas, thereby improving the filtration effect of electric furnace flue gas and increasing the treatment quality of electric furnace flue gas by the dust treatment equipment.

[0019] The water delivery mechanism 8 includes a water tank 81. One side of the water tank 81 is connected to a connecting pipe 82, and the other end of the connecting pipe 82 is connected to the bottom of the dust treatment tank 1. A water delivery component is provided on the other side of the water tank 81, and the other end of the water delivery component is connected to a rotary joint 5. A mounting bracket 83 is bolted to the top of the water tank 81, and a cooling fan 84 is provided at the top of the mounting bracket 83. The water after spraying is sent into the water tank 81 through the connecting pipe 82 at the bottom of the dust treatment tank 1. Activating the water delivery component can send the water in the water tank 81 into the rotary joint 5 for water filling. Activating the cooling fan 84 can blow air towards the water in the water tank 81, so that the temperature of the water surface is carried away by the air, thereby achieving the function of cooling the water in the water tank 81. The model of the cooling fan 84 is Delta FB0412UHE.

[0020] The water delivery assembly includes a water pump 85, which is installed on the outer wall of the water tank 81. The water pump 85's inlet is connected to a water pump pipe 86, and the other end of the water pump pipe 86 is connected to the inner cavity of the water tank 81. The water pump 85's outlet is connected to a water delivery pipe 87, and the other end of the water delivery pipe 87 is connected to a rotary joint 5. When the water pump 85 is started, it draws water from the water tank 81 through the water pump tank and sends the water flow into the rotary joint 5 through the water delivery pipe 87. The rotary joint 5 then transmits the water flow to the supporting steel pipe 4. The water pump 85 is a horizontal centrifugal pump, model IRW80-160. When installing the water pump 85, it is important to ensure that the installation position of the water pump 85 is convenient for operation and maintenance, and to ensure that it is installed firmly to reduce vibration and noise during operation. A filter screen should be installed at the inlet of the water pump pipe 86 to prevent impurities in the water tank 81 from entering the water pump 85, affecting the normal operation of the water pump 85, or even damaging the water pump 85. The mesh size of the filter can be selected according to the actual situation. Generally speaking, a filter with a mesh size of around 80-120 is more suitable, as it can effectively filter impurities without causing excessive resistance to the water flow. When installing the water supply pipe 87, care should be taken to avoid bending or twisting to ensure that the water flow can be smoothly delivered to the rotary joint 5. At the same time, the material of the water supply pipe 87 should also have a certain degree of pressure resistance and corrosion resistance. Pressure-resistant rubber pipes or metal corrugated pipes can be selected.

[0021] A support plate 11 is fixedly connected to the upper surface of the dust treatment tank 1. A slot 12 is provided at the top of the support plate 11. The surface of the water supply pipe 87 is engaged with the inner cavity of the slot 12. The support plate 11 can support the bottom end of the water supply pipe 87, thereby improving the stability of the connection between the water supply pipe 87 and the rotary joint 5.

[0022] The rotating assembly 9 includes a stepper motor 91. The output shaft of the stepper motor 91 is connected to a drive gear 92 via a reducer. A gear ring 93 is meshed with the outer surface of the drive gear 92. The inner cavity of the gear ring 93 is fixedly connected to the outer surface of the support steel pipe 4. When the stepper motor 91 is started, it drives the drive gear 92 to rotate. The drive gear 92, through meshing, drives the gear ring 93 to rotate, which in turn drives the support steel pipe 4 to rotate. The support steel pipe 4 then drives the spray head 6 at the bottom to rotate, thus achieving rotating spraying. This increases the contact area between the water flow and the dust, improving the filtration effect of the dust spraying. The stepper motor 91 is a Panasonic MINASA 6 series. For example, the nozzle 7 can adopt a multi-angle spray design, allowing the water flow to cover a larger space inside the dust treatment tank 1, ensuring comprehensive dust spraying. Meanwhile, the nozzle 7 should be made of wear-resistant and corrosion-resistant materials, such as ceramics or hard alloys, to ensure that the spraying effect will not be affected by wear or corrosion during long-term use. The reducer adjusts the output speed and torque of the stepper motor 91, enabling it to better drive the rotation of the supporting steel pipe 4. The meshing accuracy of the drive gear 92 and the gear ring 93 also affects the stability and reliability of rotation. During installation and commissioning, it is essential to ensure that the meshing clearance between the gears is appropriate, avoiding excessive or insufficient clearance. If the clearance is too large, it will cause impact and noise during transmission; if the clearance is too small, it will accelerate gear wear.

[0023] The filter plate 10 is arranged in a ring shape. A connecting plate 13 is fixedly connected to the lower surface of the filter plate 10. The surface of the connecting plate 13 is provided with mounting holes 14. The mounting holes 14 are bolted to the inner wall of the dust treatment tank 1. The connection plate 13 and the mounting holes 14 allow the filter plate 10 to be disassembled from the dust treatment tank 1, which facilitates the maintenance and replacement of the filter plate 10. At the same time, the tank body and the tank cover of the dust treatment tank 1 are assembled by bolting. The filter plate 10 is bolted to the inner wall of the tank cover. When performing maintenance and replacement, the tank body and the tank cover are disassembled, and the filter plate 10 can be removed from the inner cavity of the tank cover.

[0024] An extension plate 15 is bolted to the outer wall of the supporting steel pipe 4. A soft brush 16 is provided on the lower surface of the extension plate 15. The surface of the soft brush 16 is in contact with the surface of the annular filter plate 10. When the supporting steel pipe 4 rotates, it drives the extension plate 15 to rotate, so that the soft brush 16 at the bottom of the extension plate 15 rubs against the surface of the filter plate 10, thereby cleaning the inner cavity of the filter holes on the filter plate 10 and preventing the filter plate 10 from becoming clogged after long-term use.

[0025] In practical use: First, connect the dust collection hood 3 to the flue gas outlet of the electric furnace. The flue gas discharged from the electric furnace flue gas outlet flows through the dust collection hood 3 into the flue gas inlet pipe 2 and finally into the flue gas treatment tank 1. Start the water pump 85 to draw water from the water tank 81 through the water suction pipe 86, and then send it into the rotary joint 5 through the water delivery pipe 87. The rotary joint 5 transmits the water flow to the supporting steel pipe 4, causing several sets of nozzles 7 on the bottom spray head 6 to spray water. At the same time, start the stepper motor 91 to drive the drive gear 92 to rotate. The drive gear 92 drives the gear ring 93 to rotate through meshing connection, so that... The gear ring 93 drives the support steel pipe 4 to rotate, and the support steel pipe 4 drives the spray head 6 at the bottom to rotate, causing several sets of spray nozzles to rotate, thereby achieving rotary spraying and filtration of the flue gas in the flue gas treatment tank 1. This increases the contact surface between the water flow and the flue gas during filtration. The filtered flue gas passes through the filter plate 10 at the top for further filtration. The second-filtered electric furnace flue gas is discharged through the exhaust port at the top of the flue gas treatment tank 1, achieving dual filtration of the electric furnace flue gas. The above scheme can improve the filtration effect of the electric furnace flue gas and increase the treatment quality of the flue gas treatment equipment for the electric furnace flue gas.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fume treatment device for electric furnaces, characterized in that, include: A dust treatment tank (1) is provided with a smoke inlet pipe (2) on one side, a dust collection hood (3) at the other end of the smoke inlet pipe (2), and a supporting steel pipe (4) at the top of the dust treatment tank (1). The top end of the supporting steel pipe (4) is provided with a rotary joint (5), and the bottom end of the supporting steel pipe (4) passes through the dust treatment tank (1) and is provided with a spray head (6). The surface of the spray head (6) is provided with several sets of nozzles (7). The bottom end of the dust treatment tank (1) is equipped with a water delivery mechanism (8) for conveying water flow, and the other end of the water delivery mechanism (8) is connected to a rotary joint (5). The upper surface of the dust treatment tank (1) is equipped with a rotating component (9) for driving the supporting steel pipe (4) to rotate, and the inner cavity of the dust treatment tank (1) is provided with a filter plate (10).

2. The fume treatment device for electric furnaces according to claim 1, characterized in that: The water delivery mechanism (8) includes a water tank (81), one side of which is connected to a connecting pipe (82), the other end of which is connected to the bottom of the dust treatment tank (1), a water delivery component is provided on the other side of the water tank (81), the other end of which is connected to a rotary joint (5), a mounting bracket (83) is bolted to the top of the water tank (81), and a cooling fan (84) is provided at the top of the mounting bracket (83).

3. The fume treatment device for electric furnaces according to claim 2, characterized in that: The water delivery assembly includes a water pump (85), which is installed on the outer wall of the water tank (81). The water pump (85) has a water inlet connected to a water inlet pipe (86), the other end of which is connected to the inner cavity of the water tank (81). The water pump (85) has a water outlet connected to a water delivery pipe (87), the other end of which is connected to a rotary joint (5).

4. The electric furnace dust treatment device according to claim 3, characterized in that: A support plate (11) is fixedly connected to the upper surface of the dust treatment tank (1). A slot (12) is provided at the top of the support plate (11). The surface of the water supply pipe (87) is engaged with the inner cavity of the slot (12).

5. The electric furnace dust treatment device according to claim 1, characterized in that: The rotating assembly (9) includes a stepper motor (91), the output shaft of which is connected to a drive gear (92) via a reducer, and a gear ring (93) meshes with the outer surface of the drive gear (92). The inner cavity of the gear ring (93) is fixedly connected to the outer surface of the supporting steel pipe (4).

6. The electric furnace flue gas treatment device according to claim 1, characterized in that: The filter plate (10) is arranged in a ring shape. A connecting plate (13) is fixedly connected to the lower surface of the filter plate (10). The surface of the connecting plate (13) is provided with mounting holes (14). The mounting holes (14) are bolted to the inner wall of the dust treatment tank (1) by bolts.

7. The electric furnace dust treatment device according to claim 6, characterized in that: An extension plate (15) is bolted to the outer wall of the supporting steel pipe (4), and a soft brush (16) is provided on the lower surface of the extension plate (15). The surface of the soft brush (16) is in contact with the surface of the annular filter plate (10).

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